WO2020054432A1 - Contact device and breaker device - Google Patents

Contact device and breaker device Download PDF

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Publication number
WO2020054432A1
WO2020054432A1 PCT/JP2019/033784 JP2019033784W WO2020054432A1 WO 2020054432 A1 WO2020054432 A1 WO 2020054432A1 JP 2019033784 W JP2019033784 W JP 2019033784W WO 2020054432 A1 WO2020054432 A1 WO 2020054432A1
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WO
WIPO (PCT)
Prior art keywords
mask
movable
contact
operation pin
contact portion
Prior art date
Application number
PCT/JP2019/033784
Other languages
French (fr)
Japanese (ja)
Inventor
純久 福田
一寿 木下
進弥 木本
健児 金松
中村　真人
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Publication of WO2020054432A1 publication Critical patent/WO2020054432A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate

Definitions

  • the present disclosure relates to a contact device and a breaking device, and more particularly, to a contact device having a fixed contact and a movable contact and a breaking device including the contact device.
  • the circuit breaker includes at least one conductor designed to be connected to an electric circuit (electric circuit), a housing, a matrix, a punch, and a pyrotechnic actuator.
  • the actuator is designed to move the punch from a first position to a second position when ignited.
  • the punch and the matrix break at least one electrical conductor into at least two separate portions as the punch moves from the first position to the second position.
  • an arc may be generated when an electric circuit is interrupted, and an improvement in arc extinguishing performance may be required.
  • the present disclosure has an object to provide a contact device and an interrupting device with improved arc extinguishing performance.
  • a contact device includes a conductive fixed member and a conductive movable member.
  • the contact device includes at least one of an electrically insulating first mask and an electrically insulating second mask.
  • the fixing member has a fixed contact.
  • the movable member has a movable contact.
  • the movable contact takes one of a state of being in contact with the fixed contact and a state of being separated from the fixed contact.
  • the movable member is formed separately from the fixed member.
  • the first mask is provided in at least a part of a region surrounding the fixed contact portion and facing the movable member in a region on the surface of the fixed member.
  • the fixed contact portion is a contact portion of the fixed contact with the movable contact.
  • the second mask is provided in at least a part of a region surrounding the movable contact portion and facing the fixed member in a region on the surface of the movable member.
  • the movable contact portion is a contact portion of the movable contact with the fixed contact.
  • a breaking device includes the contact device, an operation pin, and a driving unit.
  • the drive section drives the operation pin and inserts the operation pin between the fixed contact section and the movable contact section.
  • FIG. 1 is a perspective view of the blocking device according to the first embodiment.
  • FIG. 2 is a cross-sectional perspective view of the shutoff device according to the first embodiment.
  • FIG. 3 is an exploded perspective view of a contact device of the above-mentioned breaking device.
  • FIG. 4 is a cross-sectional view of the shut-off device, showing a state before an operation pin is driven.
  • FIG. 5 is a cross-sectional view of the shut-off device, showing a state in which the operation pin is driven and advanced.
  • FIG. 6 is a cross-sectional view of a main part of the shutoff device, showing a state in which the operation pin is driven and has advanced halfway.
  • FIG. 7 is a cross-sectional view of a main part of the shut-off device, showing a state in which the operation pin has been driven and has advanced.
  • FIG. 8 is an exploded perspective view of the contact device of the breaking device according to the second embodiment.
  • FIG. 9 is a cross-sectional view of a main part of the shutoff device, showing a state before the operation pin is driven.
  • FIG. 10 is a cross-sectional view of a main part of the above-described shut-off device, showing a state after an operation pin is driven.
  • FIG. 11 is a cross-sectional view of a main part of the shutoff device according to the third embodiment.
  • FIG. 12 is a cross-sectional view of a main part of a blocking device according to a modification of the third embodiment.
  • FIG. 13 is a cross-sectional view of a main part of the shutoff device according to the fourth embodiment.
  • FIG. 14 is a cross-sectional view of a main part of the shutoff device according to the fifth embodiment.
  • FIG. 15A is a plan view of a main part of a blocking device according to a first modification of the fifth embodiment.
  • FIG. 15B is a front view of a main part of the shutoff device.
  • FIG. 16 is a front view of a stopper of the shutoff device according to the third embodiment.
  • FIG. 17 is a side view of an operation pin of the shutoff device according to the third embodiment.
  • FIG. 18 is a cross-sectional view of a main part of a blocking device according to a second modification of the fifth embodiment.
  • FIG. 19 is a cross-sectional view of a main part of a blocking device according to a third modification of the fifth embodiment.
  • FIG. 20 is a cross-sectional view of a main part of a blocking device according to
  • the shutoff device 1 of the present embodiment includes a contact device 2, an operation pin 8, and a gas generator 7 (drive unit).
  • the blocking device 1 further includes a housing 9 (housing).
  • the gas generator 7 contains the fuel 74.
  • the fuel 74 is, for example, an explosive such as nitrocellulose.
  • the gas generator 7 generates gas by burning the fuel 74.
  • the contact device 2 includes a conductive fixed member 3 and a conductive movable member 5.
  • the fixed member 3 and the movable member 5 form a part of an electric path.
  • the fixed member 3 and the movable member 5 are electrically connected.
  • an abnormal current such as an overcurrent flows in an electric circuit including the fixed member 3 and the movable member 5
  • the fuel 74 is burned by the gas generator 7 to generate gas.
  • the operation pin 8 is driven by the pressure of the gas generated by the gas generator 7.
  • the movable member 5 is moved by the operation pin 8 and separates from the fixed member 3. Thereby, the electric circuit is cut off.
  • the housing 9 is formed of, for example, resin.
  • the accommodation section 9 has a first body 91 and a second body 95.
  • the first body 91 includes a cylindrical tubular portion 92 and a first flange portion 93 protruding from one axial end of the tubular portion 92 in a radial direction of the tubular portion.
  • the second body 95 includes a prismatic columnar portion 96 and a second flange portion 97.
  • a recess 961 is formed at one end of the columnar portion 96 in the axial direction.
  • the second flange portion 97 protrudes from the vicinity of the depression 961 in the columnar portion 96.
  • the first flange portion 93 and the second flange portion 97 are plate-shaped parallel to each other.
  • the first body 91 and the second body 95 are joined to each other at a first flange portion 93 and a second flange portion 97.
  • the housing 9 houses the gas generator 7 and the operating pin 8.
  • the contact device 2 includes both the first mask 4 and the second mask 6.
  • the first mask 4 and the second mask 6 each have electrical insulation.
  • the contact device 2 is not limited to having both the first mask 4 and the second mask 6, as long as it has at least one of the first mask 4 and the second mask 6. Good.
  • the first mask 4 and the second mask 6 are formed of, for example, a resin.
  • the first mask 4 covers a part of the fixing member 3.
  • the second mask 6 covers a part of the movable member 5.
  • the first mask 4 and the second mask 6 limit the emission of particles constituting an arc generated between the fixed member 3 and the movable member 5.
  • the particles constituting the arc are, for example, electrons, metal vapor, and plasma particles.
  • the first mask 4 is fixed to the fixing member 3.
  • the first mask 4 may be fixed to the housing 9 instead of the fixing member 3.
  • the second mask 6 is fixed to the movable member 5.
  • the second mask 6 may be fixed to the housing 9 instead of the movable member 5.
  • the contact device 2 further includes a contact pressure spring 21.
  • the first mask 4, the second mask 6, and the contact pressure spring 21 are housed in the housing 9.
  • the fixing member 3 has a fixed contact 31 and a fixed piece 32.
  • the fixed contact 31 and the fixed piece 32 are housed in the housing 9.
  • the fixed contact 31 is formed of, for example, copper, silver, or the like.
  • the fixed contact 31 has a rivet shape.
  • the fixed contact 31 includes a disk-shaped head 311 and a shaft 312 protruding from the head 311.
  • the fixing piece 32 has a plate shape.
  • the fixed contact 31 is provided on the fixed piece 32. More specifically, the fixed contact 31 is attached to the fixed piece 32 by caulking. In other words, the fixed contact 31 is attached to the fixed piece 32 by caulking the tip of the shaft 312 in a state where the shaft 312 of the fixed contact 31 is passed through the through hole formed in the fixed piece 32.
  • the movable member 5 is formed separately from the fixed member 3.
  • the movable member 5 has a movable contact 51 and a movable piece 52.
  • the housing 9 houses the movable contact 51 and the movable piece 52.
  • the movable contact 51 is made of, for example, copper, silver, or the like.
  • the movable contact 51 has a rivet shape.
  • the movable contact 51 includes a hemispherical head 511 and a shaft 512 protruding from the head 511.
  • the movable piece 52 has a plate shape.
  • the movable contact 51 is provided on the movable piece 52. More specifically, the movable contact 51 is attached to the movable piece 52 by caulking.
  • the movable contact 51 takes one of a state in which it is in contact with the fixed contact 31 and a state in which it is separated from the fixed contact 31.
  • the fixed contact 31 includes a fixed contact portion 313.
  • the fixed contact portion 313 is a contact portion of the fixed contact 31 with the movable contact 51.
  • the surface of the head 311 of the fixed contact 31 opposite to the shaft portion 312 corresponds to the fixed contact portion 313.
  • the movable contact 51 includes a movable contact portion 513.
  • the movable contact portion 513 is a contact portion of the movable contact 51 with the fixed contact 31.
  • the surface of the head 511 of the movable contact 51 opposite to the shaft portion 512 side corresponds to the movable contact portion 513.
  • the fixed contact 31 and the fixed member 3 may be formed as an integral member, or the fixed contact 31 may be formed as a part of the fixed member 3.
  • the fixed contact 31 and the fixed piece 32 may be configured as an integral member.
  • the movable contact 51 and the movable member 5 may be configured as an integral member, or the movable contact 51 may be configured as a part of the movable member 5.
  • the movable contact 51 and the movable piece 52 may be configured as an integral member.
  • each of the fixed contact 31 and the movable contact 51 may be singular or plural.
  • the plurality of fixed contacts 31 may be provided side by side in the traveling direction of the operation pin 8, or the traveling direction of the operation pin 8 and the opposition between the fixed piece 32 and the movable piece 52. It may be provided side by side in a direction perpendicular to the direction (the depth direction in the drawing of FIG. 4).
  • the plurality of movable contacts 51 may be provided side by side in the traveling direction of the operation pin 8, or the traveling direction of the operation pin 8 may be opposite to the fixed piece 32 and the movable piece 52. It may be provided side by side in a direction orthogonal to the direction.
  • the gas generator 7 drives the operation pin 8 and inserts the operation pin 8 between the fixed contact portion 313 and the movable contact portion 513.
  • the movable contact part 513 separates from the fixed contact part 313.
  • the traveling direction of the movable contact portion 513 (the direction of separation from the fixed contact portion 313) intersects with the traveling direction of the operation pin 8. More specifically, the traveling direction of the movable contact portion 513 is orthogonal to the traveling direction of the operation pin 8.
  • the first mask 4 is provided in at least a part of a region surrounding the fixed contact portion 313 and facing the movable member 5 in the surface region of the fixed member 3. That is, the first mask 4 covers a part of the fixing member 3. In the present embodiment, the first mask 4 surrounds the fixed contact portion 313. Further, the first mask 4 is in contact with the fixing member 3. The first mask 4 is in contact with a contact portion 98 protruding from the inner surface of the columnar portion 96 of the second body 95. The tip of the operating pin 8 driven by the gas generator 7 contacts the contact portion 98.
  • the first mask 4 includes a first wall 41, a second wall 42, a third wall 43, and a fourth wall 44, each of which has a plate shape.
  • the first wall portion 41 has a rectangular shape.
  • the second wall portion 42, the third wall portion 43, and the fourth wall portion 44 protrude from three sides of the first wall portion 41 in the thickness direction of the first wall portion 41.
  • the first wall 41 of the first mask 4 has a first opening 410.
  • the first opening 410 is circular.
  • the size of the first opening 410 is substantially the same as the size of the head 311 of the fixed contact 31.
  • the first mask 4 surrounds the fixed contact portion 313 at the inner edge of the first opening 410. More specifically, the first mask 4 is held by the fixing member 3 in a state where the head 311 of the fixed contact 31 is located inside the first opening 410.
  • the shaft 312 and the fixed piece 32 of the fixed contact 31 are connected to the first wall 41, the second wall 42, the third wall 43 and the fourth wall 44 of the first mask 4, and the second body 95.
  • Are arranged in a space 101 surrounded by the inner surface of The fixed contact portion 313 is exposed outside the space 101 at the first opening 410.
  • the fixed contact portion 313 and the outer surface of the first mask 4 around the first opening 410 are flush with each other.
  • the second mask 6 is provided in at least a part of a region surrounding the movable contact portion 513 and facing the fixed member 3 in a region on the surface of the movable member 5. That is, the second mask 6 covers a part of the movable member 5. In the present embodiment, the second mask 6 surrounds the movable contact portion 513. Further, the second mask 6 is in contact with the movable member 5.
  • the second mask 6 includes a first wall 61, a second wall 62, a third wall 63, and a fourth wall 64, each of which has a plate shape.
  • the first wall 61 has a rectangular shape.
  • the second wall portion 62, the third wall portion 63, and the fourth wall portion 64 protrude from three sides of the first wall portion 61 in the thickness direction of the first wall portion 61.
  • the first wall 61 of the second mask 6 has a second opening 610.
  • the second opening 610 is circular.
  • the size of the second opening 610 is substantially the same as the size of the head 511 of the movable contact 51.
  • the second mask 6 surrounds the movable contact portion 513 at the inner edge of the second opening 610. More specifically, the second mask 6 is held by the movable member 5 in a state where the head 511 of the movable contact 51 is located inside the second opening 610. Further, the shaft portion 512 and the movable piece 52 of the movable contact 51 are formed in a space 102 surrounded by the first wall portion 61, the second wall portion 62, the third wall portion 63, and the fourth wall portion 64 of the second mask 6. Are located in The movable contact portion 513 is exposed outside the space 102 at the second opening 610.
  • the contact device 2 further includes a terminal portion 22 and a braided wire 23.
  • the fixing member 3 further has a terminal portion 33.
  • the terminal portions 22 and 33 are plate-shaped.
  • the terminal portions 22 and 33 are passed between the first body 91 and the second body 95 of the housing portion 9 and protrude outside the housing portion 9.
  • the terminal portion 22 is electrically connected to the movable piece 52 via the braided wire 23.
  • the terminal portion 33 is formed integrally with the fixing piece 32.
  • the path from the terminal portion 33 to the fixed piece 32, the fixed contact 31, the movable contact 51, the movable piece 52, the braided wire 23, and the terminal portion 22 forms a part of an electric path.
  • the movable contact 51 separates from the fixed contact 31, the electric circuit is cut off.
  • the contact pressure spring 21 is a compression spring. More specifically, the contact pressure spring 21 is a compression coil spring. The contact pressure spring 21 is arranged between the terminal portion 22 and the movable piece 52. Both ends of the contact pressure spring 21 are connected to the terminal portion 22 and the movable piece 52. When the operating pin 8 is not inserted between the fixed contact portion 313 and the movable contact portion 513, the contact pressure spring 21 is movable against the electromagnetic repulsion between the fixed contact 31 and the movable contact 51. The state where the contact portion 513 is in contact with the fixed contact portion 313 is maintained.
  • the gas generator 7 includes a case 71, two pin electrodes 72, and a heating element 73 in addition to the fuel 74.
  • the case 71 has a hollow cylindrical shape.
  • the blocking device 1 further includes a first O (O) ring 11 interposed between the outer edge of the case 71 and the inner surface of the tubular portion 92.
  • the two pin electrodes 72 of the gas generator 7 are housed in the case 71.
  • the first ends of the two pin electrodes 72 are exposed to the outside of the housing 9.
  • a second end of each of the two pin electrodes 72 is connected to the heating element 73.
  • the heating element 73 is arranged in a space of the case 71 in which the fuel 74 is stored.
  • the operation pin 8 has an insulating portion having electric insulation.
  • the operation pin 8 is formed of, for example, a resin.
  • the operating pin 8 is arranged between the gas generator 7 and the contact device 2.
  • the operation pin 8 has a base 81 and a projecting member 82 projecting from the base 81.
  • the entire operation pin 8 is an insulating portion.
  • the projecting member 82 electrically insulates the fixed contact portion 313 from the movable contact portion 513.
  • the base 81 does not have to have electrical insulation.
  • the insulating portion having electrical insulation properties may be at least a part of the protruding member 82.
  • the insulating portion may be a portion of the protruding member 82 except the tip.
  • the portion of the operation pin 8 other than the insulating portion may be formed of, for example, metal.
  • the base 81 is a bottomed cylindrical shape. On the outer edge of the base 81, an annular groove 811 is formed along the circumferential direction of the base 81.
  • the blocking device 1 further includes a second O-ring 12 fitted into the groove 811. The outer edge of the second O-ring 12 is in contact with the inner surface of the cylindrical portion 92.
  • the operating pin 8 is held by the cylindrical portion 92 inside the cylindrical portion 92 by a frictional force between the inner surface of the groove 811 and the inner surface of the cylindrical portion 92 and the second O-ring 12.
  • a pressurizing chamber 75 is provided between the case 71 of the gas generator 7 and the base 81 of the operation pin 8 as a space into which gas generated by the gas generator 7 is introduced.
  • the heating element 73 is, for example, a nichrome wire.
  • the two pin electrodes 72 are connected to, for example, a control circuit for controlling the operation of the cutoff device 1.
  • the shutoff device 1 is provided, for example, in a vehicle such as an electric vehicle, and the control circuit detects two pins when an abnormal current such as an overcurrent is detected and when an impact on the vehicle due to a collision of the vehicle is detected.
  • the electrode 72 is energized.
  • the heating element 73 is energized through the two pin electrodes 72 of the gas generator 7, the heating element 73 generates heat.
  • the fuel 74 is ignited by the heat generated by the heating element 73, and the fuel 74 burns to generate gas.
  • the gas raises the pressure of the space that accommodates the fuel 74 in the case 71, breaks the walls that make up this space (see FIG. 5), and is introduced into the pressurizing chamber 75 through the broken portion to be pressed.
  • the pressure in 75 is increased.
  • the operating pin 8 is driven against the frictional force of the second O-ring 12 by the pressure of the gas in the pressurizing chamber 75, and the protruding member 82 of the operating pin 8 separates the fixed contact portion 313 and the movable contact portion 513. Inserted between
  • the projecting member 82 projects from the outer bottom surface of the base 81 in the axial direction of the base 81.
  • the protruding member 82 is formed integrally with the base 81.
  • the operation pin 8 advances in the direction in which the projecting member 82 projects.
  • the protruding member 82 has a prismatic shape in which a portion including the tip in the traveling direction of the operation pin 8 is tapered. That is, the operation pin 8 includes the inclined surface 821 at the tip in the traveling direction.
  • an outer peripheral surface 822 of the protruding member 82 has a first surface 823 along the traveling direction of the operation pin 8 and a second surface 823 along the traveling direction of the operation pin 8 and opposite to the first surface 823. Surface 824.
  • the inclined surface 821 is in contact with the second mask 6.
  • a surface in contact with the inclined surface 821 is an inclined surface 601.
  • the inclined surface 601 is formed at the end of the second mask 6 on the fixing member 3 side.
  • the normal direction of the inclined surface 601 intersects the normal direction of the inclined surface 821.
  • the operation pin 8 driven by the gas generator 7 is inserted between the second mask 6 and the fixing member 3 while pressing the second mask 6 on the inclined surface 821.
  • the operating pin 8 pushes the second mask 6 on the inclined surface 821, the movable member 5 is pushed via the second mask 6, and the movable member 5 moves in a direction away from the fixed member 3.
  • the movable contact portion 513 in contact with the fixed contact portion 313 is separated from the fixed contact portion 313, or the contact area (contact area) between the movable contact portion 513 and the fixed contact portion 313 is reduced.
  • the projecting member 82 is inserted between the fixed contact portion 313 and the movable contact portion 513 to reduce the force acting on the operation pin 8 when the operation pin 8 collides with the movable contact portion 513.
  • the possibility that the operation pin 8 is damaged or deformed can be reduced. For this reason, the reliability regarding the interruption performance of the electric circuit is improved.
  • the operation pin 8 is made of resin and is softer than the metal movable contact portion 513, the operation pin 8 collides with the movable contact portion 513 and the operation pin 8 makes fixed contact with the movable contact portion 513.
  • the operating pin 8 may be damaged or deformed.
  • the operation pin 8 since the operation pin 8 is inserted between the movable contact portion 513 and the fixed contact portion 313 after the movable contact portion 513 is separated from the fixed contact portion 313, the operation pin 8 can be damaged or deformed. Performance can be reduced.
  • a gap is formed between the fixed contact portion 313 and the movable contact portion 513 so that the projecting member 82 can be inserted.
  • the protruding member 82 is inserted between the fixed contact part 313 and the movable contact part 513, and extends the arc generated between the fixed contact part 313 and the movable contact part 513.
  • the size of the gap between the fixed contact portion 313 and the movable contact portion 513 is maximized.
  • the thickness becomes the same as the thickness of the protruding member 82.
  • the fixed contact portion 313 is exposed outside the first mask 4 at the first opening 410.
  • the outer peripheral surface 822 of the projecting member 82 of the operation pin 8 It contacts at least one of the fixed contact portion 313 and the movable contact portion 513.
  • the first surface 823 of the outer peripheral surface 822 contacts the fixed contact portion 313.
  • the first surface 823 of the outer peripheral surface 822 of the protruding member 82 covers the first opening 410 of the first mask 4. That is, the fixed contact portion 313 is covered by the projecting member 82 after the operation pin 8 is driven by the gas generator 7.
  • the outer peripheral surface 822 of the protruding member 82 of the operation pin 8 inserted between the fixed contact portion 313 and the movable contact portion 513 includes the first wall portion 41 (contact wall) of the first mask 4 and the second mask 6 and the first wall 61 (contact wall). That is, of the outer peripheral surface 822, the first surface 823 contacts the first wall portion 41 of the first mask 4, and the second surface 824 contacts the first wall portion 61 of the second mask 6.
  • the first mask 4 covers the region R ⁇ b> 1 of the fixed member 3 in the traveling direction of the operation pin 8 with respect to the fixed contact portion 313 by the first wall portion 41. That is, the first wall portion 41 includes at least a portion provided in a region R1 below the fixed contact portion 313 in FIG.
  • the second mask 6 covers the region R2 of the movable member 5 on the traveling direction side of the operation pin 8 with respect to the movable contact portion 513 by the first wall portion 61. That is, the first wall portion 61 includes at least a portion provided in a region R2 below the movable contact portion 513 in FIG.
  • the second body 95 of the housing section 9 includes a contact section 98.
  • the contact portion 98 protrudes from the inner surface of the columnar portion 96.
  • the contact portion 98 comes into contact with the distal end (the distal end of the protruding member 82) in the traveling direction of the operation pin 8 among the operation pins 8 inserted between the fixed contact portion 313 and the movable contact portion 513.
  • At least a part of the first wall portion 41 of the first mask 4 is located between the contact portion 98 and the fixed contact portion 313.
  • At least a part of the first wall portion 61 of the second mask 6 is located between the contact portion 98 and the movable contact portion 513.
  • FIG. 6 and 7 show examples of the path of an arc generated between the fixed contact portion 313 and the movable contact portion 513, respectively.
  • FIG. 6 illustrates the arc path A1 in a state where the protruding member 82 covers the first opening 410 and is not in contact with the contact part 98.
  • FIG. 7 illustrates an arc path A2 in a state where the protruding member 82 further moves from the state of FIG. 6 and the protruding member 82 is in contact with the contact portion 98.
  • the emission of particles constituting the arc is restricted except for the inside of the first opening 410. More specifically, in the fixing member 3, particles forming an arc are emitted from the fixed contact portion 313 inside the first opening 410, while an arc is formed at a portion other than the fixed contact portion 313. Particles are hard to be released.
  • the emission of the particles constituting the arc is restricted except for the inside of the second opening 610. More specifically, in the movable member 5, particles forming an arc are emitted from the movable contact portion 513 inside the second opening 610, while an arc is formed in a portion other than the movable contact portion 513. Particles are hard to be released.
  • the first mask 4 is provided in at least a part of the area facing the movable member 5 in the area on the surface of the fixed member 3, the arc is generated when the fixed member 3 faces the movable member 5. Is prevented from being formed along the same direction. Since the second mask 6 is provided in at least a part of the area facing the fixed member 3 in the area of the surface of the movable member 5, the arc faces the fixed member 3 and the movable member 5. Formation along the direction is suppressed.
  • the outer peripheral surface 822 of the protruding member 82 of the operation pin 8 becomes fixed contact. It contacts the part 313.
  • the outer peripheral surface 822 covers the first opening 410 of the first mask 4. This limits the movement of the particles constituting the arc around the fixed contact portion 313. For example, when there is a slight gap between the periphery of the first opening 410 in the first mask 4 and the protruding member 82, the range in which particles constituting the arc can move around the fixed contact portion 313 is as follows. Is limited to this gap. Therefore, the arc voltage is increased, and the arc extinguishing performance of the cutoff device 1 is improved.
  • the outer peripheral surface 822 When the operation pin 8 is inserted between the fixed contact portion 313 and the movable contact portion 513, the outer peripheral surface 822 may be in contact with the movable contact portion 513, or the outer peripheral surface 822 may be in contact with the movable contact portion 513 and the fixed contact portion 313. You may touch both. That is, the second surface 824 of the outer peripheral surface 822 may be in contact with the movable contact portion 513. Further, when the operation pin 8 is inserted between the fixed contact portion 313 and the movable contact portion 513, the second surface 824 of the outer peripheral surface 822 is connected to the second opening 610 of the second mask 6. May be covered.
  • the outer peripheral surface 822 of the protruding member 82 of the operation pin 8 forms the first wall portion 41 (contact wall) of the first mask 4 and the second mask 41. 6 and the first wall 61 (contact wall).
  • the contact portion 98 comes into contact with the distal end (the distal end of the protruding member 82) of the operating pin 8 driven by the gas generator 7 in the traveling direction of the operating pin 8. Therefore, the arc generated between the fixed contact portion 313 and the movable contact portion 513 is compressed between the tip in the traveling direction of the operation pin 8 and the contact portion 98.
  • This increases the density of the particles constituting the arc, increases the frequency of collision of the particles, and makes it difficult for the particles to smoothly move between the fixed contact portion 313 and the movable contact portion 513.
  • the voltage increases. Therefore, the arc extinguishing performance of the shutoff device 1 is improved.
  • the first mask 4 may cover a part of the fixed contact 31, or may cover a part of the fixed contact 31 and at least a part of the fixed piece 32.
  • the second mask 6 may cover a part of the movable contact 51, or may cover a part of the movable contact 51 and at least a part of the movable piece 52.
  • the shapes of the first mask 4 and the second mask 6 are not limited to the shapes described in the first embodiment.
  • the first mask 4 may be formed, for example, in a U shape surrounding the fixed contact portion 313.
  • the second mask 6 may be formed in, for example, a U shape surrounding the movable contact portion 513.
  • the first opening 410 may be larger than the head 311 of the fixed contact 31 or may be smaller than the head 311.
  • the second opening 610 may be larger than the head 511 of the movable contact 51, or may be smaller than the head 511.
  • the driving unit for driving the operation pin 8 is not limited to the gas generator 7.
  • the drive unit may be configured to drive the operation pin 8 by an electromagnetic force, for example.
  • the contact device 2 includes a conductive fixed member 3 and a conductive movable member 5.
  • the contact device 2 includes at least one of an electrically insulating first mask 4 and an electrically insulating second mask 6.
  • the fixed member 3 has a fixed contact 31.
  • the movable member 5 has a movable contact 51.
  • the movable contact 51 takes one of a state of being in contact with the fixed contact 31 and a state of being separated from the fixed contact 31.
  • the movable member 5 is formed separately from the fixed member 3.
  • the first mask 4 is provided in at least a part of a region surrounding the fixed contact portion 313 and facing the movable member 5 in a region on the surface of the fixed member 3.
  • the fixed contact portion 313 is a contact portion of the fixed contact 31 with the movable contact 51.
  • the second mask 6 is provided in at least a part of a region surrounding the movable contact portion 513 and facing the fixed member 3 in a region on the surface of the movable member 5.
  • the movable contact portion 513 is a contact portion of the movable contact 51 with the fixed contact 31.
  • At least one of the fixed member 3 and the movable member 5 is provided with the electrically insulating first mask 4 or the second mask 6, and discharge of particles constituting the arc is prevented. Limited. Thereby, the arc resistance increases and the arc voltage increases, so that the arc extinguishing performance of the contact device 2 improves.
  • the first mask 4 has the first opening 410.
  • the first mask 4 surrounds the fixed contact portion 313 at the inner edge of the first opening 410.
  • the second mask 6 has a second opening 610.
  • the second mask 6 surrounds the movable contact portion 513 at the inner edge of the second opening 610.
  • the emission of the particles constituting the arc is further restricted by at least one of the first mask 4 and the second mask 6.
  • the arc extinguishing performance of the contact device 2 is further improved.
  • the contact device 2 includes both the first mask 4 and the second mask 6.
  • the arc extinguishing performance of the contact device 2 is further improved as compared with the case where the contact device 2 includes only one of the first mask 4 and the second mask 6.
  • the breaking device 1 is provided with the contact device 2, the operation pin 8, and the drive part (gas generator 7).
  • the drive unit drives the operation pin 8 and inserts the operation pin 8 between the fixed contact unit 313 and the movable contact unit 513.
  • the first mask 4 has the first opening 410.
  • the first opening 410 is covered by the operating pin 8 inserted between the fixed contact part 313 and the movable contact part 513.
  • the first mask 4 surrounds the fixed contact portion 313 at the inner edge of the first opening 410.
  • the second mask 6 has a second opening 610.
  • the second opening 610 is covered by the operating pin 8 inserted between the fixed contact part 313 and the movable contact part 513.
  • the second mask 6 surrounds the movable contact portion 513 at the inner edge of the second opening 610.
  • the arc extinguishing performance of the shutoff device 1 is further improved.
  • the movement of particles constituting the arc around the movable contact portion 513 is restricted, so that the arc voltage increases. Therefore, the arc extinguishing performance of the shutoff device 1 is further improved.
  • the movement of particles constituting the arc is restricted between at least one of the fixed contact portion 313 and the movable contact portion 513 and the outer peripheral surface 822 of the operation pin 8, so that the arc voltage is reduced. Increase. Therefore, the arc extinguishing performance of the shutoff device 1 is further improved.
  • the blocking device 1 includes the second mask 6.
  • the operation pin 8 includes an inclined surface 821 at the tip in the traveling direction. The operation pin 8 is inserted between the second mask 6 and the fixing member 3 while pressing the second mask 6 on the inclined surface 821 by being driven by the driving unit (gas generator 7).
  • the operating pin 8 pushes the second mask 6 on the inclined surface 821 and pushes the movable member 5 via the second mask 6, thereby moving the movable contact 5 in contact with the fixed contact portion 313.
  • the portion 513 can be separated from the fixed contact portion 313, or the contact area between the movable contact portion 513 and the fixed contact portion 313 can be reduced. Therefore, when the projecting member 82 is inserted between the fixed contact portion 313 and the movable contact portion 513, the possibility that the operation pin 8 collides with the movable contact portion 513 and is damaged or deformed can be reduced.
  • the blocking device 1 further includes a contact wall (the first wall portion 41 and the first wall portion 61).
  • the contact wall is in contact with the outer peripheral surface 822 of the operation pin 8 inserted between the fixed contact portion 313 and the movable contact portion 513.
  • the movement of the particles constituting the arc is restricted between the outer peripheral surface 822 of the operation pin 8 and the contact wall (the first wall portion 41 and the first wall portion 61). Increase. Therefore, the arc extinguishing performance of the shutoff device 1 is further improved.
  • the driving unit has the gas generator 7.
  • the gas generator 7 generates gas by burning the fuel 74.
  • the operation pin 8 is driven by the pressure of the gas generated by the gas generator 7.
  • the first mask 4 covers the region R1 of the fixed member 3 on the traveling direction side of the operation pin 8 with reference to the fixed contact portion 313.
  • the second mask 6 covers a region R2 of the movable member 5 on the traveling direction side of the operation pin 8 with reference to the movable contact portion 513.
  • the movement of the particles constituting the arc elongated in the traveling direction of the operation pin 8 by the operation pin 8 is restricted by at least one of the first mask 4 and the second mask 6, Arc voltage increases. Therefore, the arc extinguishing performance of the shutoff device 1 is further improved.
  • the blocking device 1 further includes a contact portion 98.
  • the contact portion 98 comes into contact with a tip of the operation pin 8 inserted between the fixed contact portion 313 and the movable contact portion 513 in the traveling direction of the operation pin 8.
  • the arc is compressed between the tip of the operation pin 8 in the traveling direction and the contact portion 98.
  • the frequency of collision of particles constituting the arc increases, so that the arc voltage increases. Therefore, the arc extinguishing performance of the shutoff device 1 is further improved.
  • the fixing member 3A further has a first protrusion 34.
  • the first protrusion 34 protrudes from the fixing piece 32A.
  • the first protrusion 34 is formed separately from the fixing piece 32A.
  • the first protrusion 34 is formed of, for example, tungsten.
  • the shape of the first projection 34 of the present embodiment is the same as the shape of the fixed contact 31 provided on the fixed piece 32A. That is, the first protrusion 34 has a rivet shape and includes a disk-shaped head 341 and a shaft 342 protruding from the head 341.
  • the first protrusion 34 is attached to the fixing piece 32A by caulking.
  • the first protrusion 34 is located away from the fixed contact 31 in the direction in which the operation pin 8 moves. More specifically, when the operating pin 8 is not driven by the gas generator 7 (see FIG. 4), as shown in FIG. Near the tip of 8.
  • the first mask 4A has a first opening 411 and a third opening 412.
  • the first opening 411 corresponds to the first opening 410 of Embodiment 1 (see FIG. 3), and the first mask 4A surrounds the fixed contact portion 313 at the inner edge of the first opening 411. I have.
  • the size of the third opening 412 is substantially the same as the head 341 of the first protrusion 34.
  • the first mask 4 ⁇ / b> A surrounds the head 341 of the first protrusion 34 at the inner edge of the third opening 412.
  • the movable member 5A further has a second protrusion 54.
  • the second protrusion 54 protrudes from the movable piece 52A.
  • the second protruding portion 54 is formed separately from the movable piece 52A.
  • the second protrusion 54 is formed, for example, of tungsten.
  • the shape of the second protrusion 54 of the present embodiment is the same as the shape of the movable contact 51 provided on the movable piece 52A. That is, the second protrusion 54 is rivet-shaped and includes a disk-shaped head 541 and a shaft 542 protruding from the head 541.
  • the second protrusion 54 is attached to the movable piece 52A by caulking.
  • the second protrusion 54 is located away from the movable contact 51 in the direction of movement of the operation pin 8. More specifically, when the operation pin 8 is not driven by the gas generator 7 (see FIG. 4), as shown in FIG. Near the tip of 8.
  • the second mask 6A has a second opening 611 and a fourth opening 612.
  • the second opening 611 corresponds to the second opening 610 (see FIG. 3) of the first embodiment, and the second mask 6A has a movable contact portion 513 (FIG. 10) at the inner edge of the second opening 611. See).
  • the size of the fourth opening 612 is substantially the same as the head 541 of the second protrusion 54.
  • the second mask 6A surrounds the head 541 of the second protrusion 54 at the inner edge of the fourth opening 612.
  • the second protrusion 54 faces the first protrusion 34. As shown in FIG. 9, when the operating pin 8 is not driven by the gas generator 7 (see FIG. 4), the second protrusion 54 contacts the first protrusion 34. Therefore, the current flows not only between the fixed contact 31 and the movable contact 51 but also between the first protrusion 34 and the second protrusion 54.
  • the gas generator 7 (see FIG. 4) drives the operation pin 8 and inserts the operation pin 8 between the fixed contact portion 313 and the movable contact portion 513 as shown in FIG.
  • both end points T1 and T2 of the arc generated between the fixed contact 31 and the movable contact 51 are transferred to the first protrusion 34 and the second protrusion 54. May move. Thereafter, the operation pin 8 is further moved by the pressure of the gas generated by the gas generator 7, and the operation pin 8 is inserted between the first protrusion 34 and the second protrusion 54.
  • the gas generator 7 drives the operation pin 8 and causes the operation pin 8 to pass between the fixed contact portion 313 and the movable contact portion 513 to cause the operation pin 8 to move between the first protrusion 34 and the second protrusion 54.
  • Insert The projecting member 82 of the operation pin 8 covers the third opening 412 of the first mask 4A.
  • the material forming the first protrusion 34 and the second protrusion 54 is tungsten
  • the material forming the fixed contact 31 and the movable contact 51 is copper and silver. Therefore, the melting points of the first protrusion 34 and the second protrusion 54 are higher than the melting points of the fixed contact 31 and the movable contact 51. Therefore, metal vapor is less likely to be generated at the first protrusion 34 and the second protrusion 54 than at the fixed contact 31 and the movable contact 51. Therefore, the arc generated between the first protrusion 34 and the second protrusion 54 is more easily extinguished than the arc generated between the fixed contact 31 and the movable contact 51.
  • the contact device 2A has the fixed contact 31 and the movable contact 51 formed of tungsten as a material, and the members provided as the fixed contact and the movable contact are compared with the case where only the fixed contact 31 and the movable contact 51 are provided. Therefore, the current-carrying performance of the contact device 2A is high.
  • the arc extinguishing performance can be improved while maintaining the energizing performance, as compared with the shut-off device 1 of the first embodiment.
  • first protrusion 34 and the second protrusion 54 need not be in contact with each other. That is, the first protrusion 34 and the second protrusion 54 need not be a part of the electric circuit.
  • the third opening 412 may be larger than the head 341 of the first protrusion 34 or smaller than the head 341.
  • the fourth opening 612 may be larger than the head 541 of the second protrusion 54 or smaller than the head 541.
  • the projecting member 82 of the operation pin 8 driven by the gas generator 7 may cover the fourth opening 612 of the second mask 6A.
  • the aspects related to the fixed contact 31 of each embodiment and each modified example of the present disclosure can be appropriately applied.
  • the mode relating to the movable contact 51 of each embodiment and each modified example of the present disclosure can be appropriately applied.
  • the fixing member 3A has a fixing piece 32A and a first protrusion 34.
  • a fixed contact 31 is provided on the fixed piece 32A.
  • the first protrusion 34 protrudes from the fixing piece 32A.
  • the movable member 5A has a movable piece 52A and a second protrusion 54.
  • a movable contact 51 is provided on the movable piece 52A.
  • the second protruding portion 54 protrudes from the movable piece 52A and faces the first protruding portion 34.
  • the first projecting portion 34 and the second projecting portion 54 are located apart from the fixed contact 31 and the movable contact 51 in the traveling direction of the operation pin 8.
  • the drive section (gas generator 7) drives the operation pin 8 and causes the operation pin 8 to pass between the fixed contact section 313 and the movable contact section 513, thereby causing the first protrusion 34 and the second protrusion 54 to Insert between
  • the end point of the arc generated between the fixed contact portion 313 and the movable contact portion 513 becomes It may move to the first protrusion 34 and the second protrusion 54.
  • the arc is interrupted between the first projection 34 and the second projection 54. Therefore, it is possible to suppress a decrease in arc extinguishing performance of the interrupting device 1A without using a material that is advantageous for arc extinguishing as the material of the fixed contact 31 and the movable contact 51. For example, even if the material of the fixed contact 31 and the movable contact 51 is selected by giving priority to the conductivity to the arc extinguishing performance, the arc extinguishing performance of the shutoff device 1A can be prevented from being reduced.
  • a plurality of first recesses 825 (grooves) and a plurality of second recesses 826 (grooves) are formed in the protruding member 82B.
  • the plurality of first depressions 825 are formed on a first surface 823B of the protruding member 82B that faces the first mask 4B.
  • the first surface 823B has an uneven shape due to the first depression 825.
  • the plurality of first depressions 825 are arranged in the traveling direction of the operation pin 8B.
  • the plurality of second depressions 826 are formed on a second surface 824B of the protruding member 82B that faces the second mask 6B.
  • the second surface 824B has an uneven shape due to the second depression 826.
  • the plurality of second depressions 826 are arranged in the traveling direction of the operation pin 8B.
  • a plurality of third recesses 403 are formed in the first mask 4B.
  • the plurality of third depressions 403 are formed on a surface 404 of the first mask 4B that faces the first surface 823B of the protruding member 82B of the operation pin 8B.
  • the surface 404 is included in the first wall portion 41B of the first mask 4B.
  • the surface 404 has an uneven shape due to the third recess 403.
  • the plurality of third recesses 403 are arranged in the traveling direction of the operation pin 8B.
  • the plurality of third recesses 403 are formed in a region of the first mask 4B on the moving direction side of the operation pin 8B with respect to the fixed contact portion 313.
  • the plurality of third recesses 403 are located between the contact portion 98B and the fixed contact portion 313.
  • a plurality of fourth recesses 604 are formed in the second mask 6B.
  • the plurality of fourth recesses 604 are formed on a surface 605 of the second mask 6B that faces the second surface 824B of the protruding member 82B of the operation pin 8B.
  • the surface 605 is included in the first wall 61B of the second mask 6B.
  • the surface 605 has an uneven shape due to the fourth recess 604.
  • the plurality of fourth recesses 604 are arranged in the traveling direction of the operation pin 8B.
  • the plurality of fourth recesses 604 are formed in a region of the second mask 6B on the moving direction side of the operation pin 8B with respect to the movable contact portion 513.
  • the plurality of fourth recesses 604 are located between the contact portion 98B and the movable contact portion 513.
  • a plurality of fifth recesses 985 are formed on the surface (surface 981) of the contact portion 98B.
  • the plurality of fifth recesses 985 face the operation pin 8B in the traveling direction of the operation pin 8B.
  • the plurality of fifth recesses 985 are arranged in a direction in which the fixed contact portion 313 and the movable contact portion 513 face each other.
  • the surface 981 of the contact portion 98B has an uneven shape due to the fifth recess 985.
  • the arc generated between the fixed contact 31 and the movable contact 51 is a path along a plurality of first, second, third, fourth, and fifth recesses 825, 826, 403, 604, 985, respectively. May connect the fixed contact 31 and the movable contact 51.
  • the shutoff device 1B of the present embodiment the fixed contact portion 313 and Since the creepage distance with the movable contact portion 513 is increased, the tracking phenomenon can be suppressed.
  • the shape of the surface of the portion where the first, second, third, fourth, or fifth recesses 825, 826, 403, 604, and 985 are formed is an uneven shape.
  • the concavo-convex shape may be a concavo-convex shape formed at a right angle or a substantially right angle, or may be a ripple shape.
  • the ripple shape is a concavo-convex shape in which corner portions are R-shaped.
  • Each of the first, second, third, fourth, and fifth depressions 825, 826, 403, 604, and 985 may be one or plural.
  • One or a plurality of depressions may be formed at the tip of the operation pin 8B in the traveling direction of the operation pin 8B.
  • the plurality of depressions are arranged in a direction in which the fixed contact portion 313 and the movable contact portion 513 face each other.
  • the blocking device 1C further includes a plurality of columnar pieces 99.
  • the plurality of columnar pieces 99 are formed of, for example, a magnetic material such as iron.
  • the plurality of columnar pieces 99 are embedded in the contact portion 98C.
  • At least a part of the wall surface of the plurality of fifth recesses 985 in the contact portion 98C is formed by the plurality of columnar pieces 99.
  • the plurality of columnar pieces 99 are arranged in a direction in which the fixed contact portion 313 and the movable contact portion 513 face each other.
  • the plurality of columnar pieces 99 are arranged in parallel with each other.
  • the fixed contact portion is compared with the case where the wall surface of the fifth recess 985 is formed of, for example, resin.
  • the arc voltage of the arc generated between 313 and movable contact portion 513 increases. Therefore, in the shutoff device 1C of this modification, the arc extinguishing performance is improved.
  • At least a part of the wall surfaces of the plurality of third recesses 403 in the first mask 4B may be formed of a plurality of columnar pieces made of a magnetic material such as iron.
  • at least a part of the wall surface of the plurality of fourth recesses 604 in the second mask 6B may be formed of a plurality of columnar pieces made of a magnetic material such as iron.
  • at least a part of the wall surfaces of the plurality of first recesses 825 and the plurality of second recesses 826 formed in the operation pin 8B may be formed of a plurality of columnar pieces made of a magnetic material such as iron.
  • at least one of the surfaces (first surface 823B, second surface 824B) facing the second mask 6B has a dent (first, second, third, fourth dent 825, 826, 403, 604) are formed.
  • the creepage distance between the fixed contact portion 313 and the movable contact portion 513 is increased, so that the tracking phenomenon can be suppressed.
  • At least one of the surface 981 of the contact portion 98B (or 98C) and the front surface (for example, the inclined surface 821) in the traveling direction of the operation pin 8B has a depression ( A fifth depression 985) is formed.
  • the creepage distance between the fixed contact portion 313 and the movable contact portion 513 is increased, so that the tracking phenomenon can be suppressed.
  • the operation pin 8D further includes a plurality (two in FIG. 13) of insulating members 83 having electrical insulation.
  • Each insulating member 83 has a plate shape.
  • Each insulating member 83 is embedded in the protruding member 82D. More specifically, one of the two insulating members 83 is embedded in the protruding member 82D at the first surface 823D of the protruding member 82D. The other of the two insulating members 83 is embedded in the protruding member 82D at the second surface 824D of the protruding member 82D.
  • the first mask 4D further includes an insulating member 46 having electrical insulation.
  • the insulating member 46 has a plate shape.
  • the insulating member 46 is formed on a surface 404D of the first mask 4D that faces the first surface 823D of the projecting member 82D of the operation pin 8D.
  • the surface 404D is included in the first wall portion 41D of the first mask 4D.
  • the insulating member 46 is formed in a region of the first mask 4D on the traveling direction side of the operation pin 8D with reference to the fixed contact portion 313.
  • the insulating member 46 is located between the contact part 98 and the fixed contact part 313.
  • the second mask 6D further includes an insulating member 66 having electrical insulation.
  • the insulating member 66 has a plate shape.
  • the insulating member 66 is formed on a surface 605D of the second mask 6D facing the second surface 824D of the projecting member 82D of the operation pin 8D.
  • the surface 605D is included in the first wall 61D of the second mask 6D.
  • the insulating member 66 is formed in a region of the second mask 6D on the moving direction side of the operation pin 8D with respect to the movable contact portion 513.
  • the insulating member 66 is located between the contact part 98 and the movable contact part 513.
  • Each insulating member 83, 46, 66 is arranged on a path of an arc generated between the fixed contact portion 313 and the movable contact portion 513.
  • Each of the insulating members 83, 46, 66 is, for example, ceramic.
  • Each of the insulating members 83, 46, 66 may be glass.
  • the tracking phenomenon is less likely to occur as compared with the surface of the resin which is the material forming the first wall 41D of the first mask 4D and the first wall 61D of the second mask 6D. In the blocking device 1D, the tracking phenomenon can be suppressed. Further, since ceramics and glass have higher heat resistance than resins, they are not easily deteriorated by an arc. Therefore, the state where the first mask 4D covers a part of the fixed member 3 and the second mask 6D covers a part of the movable member 5 can be maintained.
  • At least one of the first mask 4D, the second mask 6D, and the operation pin 8D may be entirely formed of an insulating material such as ceramic or glass.
  • the blocking device 1E of the present embodiment further includes the stopper 15.
  • the stopper 15 is formed of, for example, a resin.
  • the stopper 15 is connected to the first mask 4 and the second mask 6. Thereby, the state where the fixed contact 31 and the movable contact 51 are in contact with each other is maintained. Therefore, in the shutoff device 1E, the contact pressure spring 21 (see FIG. 4) can be omitted.
  • the stopper 15 is plate-shaped.
  • a groove 150 is formed in the first surface 16 orthogonal to the thickness direction of the stopper 15.
  • the depth direction of the groove 150 is along the thickness direction of the stopper 15.
  • the cross-sectional shape of the groove 150 is triangular. That is, the shape of the groove 150 is a wedge shape.
  • the distal end of the protruding member 82 of the operation pin 8 is in contact with the second surface 17 opposite to the first surface 16.
  • the tip of the protruding member 82 overlaps the groove 150 in the traveling direction of the operation pin 8.
  • the groove 150 is formed in a region extending from the region occupied by the protruding member 82 in the traveling direction of the operation pin 8.
  • the stopper 15 regulates the movement of the operation pin 8 between the fixed contact portion 313 and the movable contact portion 513 before the operation pin 8 is driven by the gas generator 7.
  • the state before the operation pin 8 is driven by the gas generator 7 includes a period in which the operation pin 8 does not break the stopper 15 because the pressure in the pressurizing chamber 75 (see FIG. 4) is relatively low. That is, after the gas is generated from the gas generator 7 and the gas flows into the pressurizing chamber 75, the operation pin 8 is driven by the gas generator 7 until the operation pin 8 breaks the stopper 15. Included in the previous period.
  • the stopper 15 breaks along the groove 150 by the force applied from the operation pin 8, and the first portion connected to the first mask 4 and the second portion And a second portion connected to the mask 6.
  • the stopper 15 is broken, the connection between the fixed member 3 and the movable member 5 by the stopper 15 is released.
  • the movable member 5 can be separated from the fixed member 3. That is, the restriction of the stopper 15 that restricts the movement of the operation pin 8 between the fixed contact portion 313 and the movable contact portion 513 is released.
  • the movable member 5 is separated from the fixed member 3 by applying an electromagnetic repulsive force between the fixed contact 31 and the movable contact 51 to the movable member 5. Then, the projecting member 82 of the operation pin 8 passes between the first portion and the second portion and moves between the fixed contact portion 313 and the movable contact portion 513.
  • the stopper 15 moves the operation pin 8. Can be hindered. Therefore, the protruding member 82 does not move between the fixed contact portion 313 and the movable contact portion 513. That is, the stopper 15 prevents the movement of the operation pin 8 until the stopper 15 is broken.
  • the protruding member 82 moves between the fixed contact portion 313 and the movable contact portion 513.
  • the moving speed of the protruding member 82 between the fixed contact portion 313 and the movable contact portion 513 can be increased, and the arc generated between the fixed contact portion 313 and the movable contact portion 513 is rapidly extended. . Thereby, the arc extinguishing performance of the cutoff device 1E is improved.
  • the stopper 15 prevents the operation pin 8 from moving between the fixed contact portion 313 and the movable contact portion 513 until the stopper is broken by the force applied from the operation pin 8.
  • the blocking device 1 ⁇ / b> E may include a tension spring, a compression spring, or the like that applies a force to the movable member 5 to move the movable member 5 away from the fixed member 3.
  • the stopper 15 when the stopper 15 is broken, in addition to the electromagnetic repulsive force acting between the fixed member 3 and the movable member 5, the movable member 5 is moved by the force of a tension spring or a compression spring. Move away from
  • the projecting member 82 of the operation pin 8 When the operation pin 8 is not driven by the gas generator 7, the projecting member 82 of the operation pin 8 is in contact with the second mask 6 (see FIG. 4). The projecting member 82 of the pin 8 does not need to be in contact with the second mask 6 and may be separated from the second mask 6.
  • the stopper 15 may be connected to the fixing member 3 instead of the first mask 4.
  • the stopper 15 may be connected to the movable member 5 instead of the second mask 6.
  • the blocking device 1F further includes two stoppers 15F and four holding projections 18 in addition to the configuration of the blocking device 1 of the first embodiment.
  • Each holding projection 18 protrude two from each of the fixed member 3 and the movable member 5.
  • Each holding projection 18 is L-shaped.
  • Each holding projection 18 is elastically deformable.
  • One of the two stoppers 15F corresponds to one of the four holding projections 18 protruding from the fixed member 3 and one of the holding projections 18 protruding from the movable member 5, and corresponds to one of the two stoppers 15F. The other of them corresponds to the remaining two of the four holding projections 18.
  • Each stopper 15F is held on the fixed member 3 and the movable member 5 by two corresponding holding projections 18. Thereby, the state where the fixed contact 31 and the movable contact 51 are in contact with each other is maintained. Therefore, the contact pressure spring 21 (see FIG. 4) can be omitted in the shutoff device 1F.
  • the holding projection 18 regulates the movement of the stopper 15F in the direction in which the fixed contact 31 and the movable contact 51 face each other. Further, the holding projection 18 regulates the movement of the stopper 15F in a direction orthogonal to the direction in which the fixed contact 31 and the movable contact 51 face each other and the direction in which the operation pin 8 advances.
  • each of the stoppers 15F is a plate-like member having an E-shape in plan view. That is, each stopper 15F has a plate-shaped base 151 and three protrusions 152 protruding from the base 151. The three protrusions 152 are arranged in the longitudinal direction of the base 151.
  • Each stopper 15F is hooked on the corresponding two holding projections 18 at the two projections 152 at both ends of the three projections 152.
  • Each of the stoppers 15F is held by the fixing member 3 such that one projection 152 is sandwiched between one of the corresponding two holding projections 18 and the fixing member 3, and the projection 152 is hooked on the holding projection 18.
  • one projection 152 of the stopper 15F is sandwiched between the holding projection 18 and the fixing member 3 due to the elasticity of the holding projection 18.
  • each stopper 15F is configured such that one projection 152 is sandwiched between the remaining one of the two corresponding holding projections 18 and the movable member 5 so that the projection 152 is hooked on the holding projection 18. , Held by the movable member 5.
  • the holding projection 18 restricts the movement of the stopper 15F in the direction in which the fixed contact 31 and the movable contact 51 face each other. Further, the holding projection 18 regulates the movement of the stopper 15F in a direction perpendicular to the direction in which the fixed contact 31 and the movable contact 51 face each other and the direction in which the operation pin 8 advances.
  • the holding projection 18 may be caulked with the stopper 15F. Alternatively, the holding projection 18 may be pressed into the stopper 15F.
  • the operation pin 8F further has two pressing projections 84.
  • the two pressing protrusions 84 protrude from the protruding member 82.
  • the two pressing projections 84 correspond one-to-one with the two stoppers 15F.
  • each of the two pressing projections 84 presses the corresponding stopper 15F. More specifically, of the three protrusions 152 of the stopper 15F, the center protrusion 152 is pressed.
  • the pressure in the pressurizing chamber 75 increases and each stopper 15F falls off from the corresponding two holding projections 18 in the traveling direction of the operating pin 8, the fixed member 3 and the movable member 5
  • the movable member 5 is separated from the fixed member 3 by applying an electromagnetic repulsive force acting between the fixed member 3 and the movable member 5. Then, the protruding member 82 is inserted between the fixed contact portion 313 and the movable contact portion 513.
  • the holding projection 18 may protrude from the first mask 4 (see FIG. 4) instead of the fixing member 3. Further, the holding projection 18 may protrude from the second mask 6 (see FIG. 4) instead of the movable member 5.
  • the blocking device 1G further includes a stopper 15G in addition to the configuration of the blocking device 1 of the first embodiment.
  • the stopper 15G has a rod shape.
  • the stopper 15G includes a first end 153 including a first end of the stopper 15G, a second end 154 including a second end of the stopper 15G, and an intermediate portion between the first end 153 and the second end 154. 155.
  • the first end 153 and the second end 154 are thinner than the middle part 155. Therefore, the stopper 15G is easily broken at the first end 153 and the second end 154.
  • An insertion hole 827 into which the intermediate portion 155 is inserted is formed in the projecting member 82G of the operation pin 8G.
  • Two concave portions 911 into which the first end and the second end of the stopper 15G are inserted are formed on the inner surface of the first body 91G of the storage portion 9G. Since the first end and the second end of the stopper 15G are inserted into the two concave portions 911, the movement of the operation pin 8G is restricted.
  • the stopper 15G prevents the projecting member 82G of the operation pin 8G from moving between the fixed contact portion 313 and the movable contact portion 513.
  • the pressure in the pressurizing chamber 75 increases and the stopper 15G breaks, the projecting member 82G is inserted between the fixed contact portion 313 and the movable contact portion 513.
  • the stopper 15G may be formed not in a rod shape but in a plate shape.
  • the blocking device 1H further includes a plurality of (two in FIG. 19) stoppers 15H in addition to the configuration of the blocking device 1 of the first embodiment.
  • the plurality of stoppers 15H protrude from the inner surface of the first body 91 of the storage section 9.
  • the plurality of stoppers 15H are in contact with the base 81 of the operation pin 8.
  • the plurality of stoppers 15H are located on the traveling direction side of the base 81.
  • a groove 156 is formed in a portion adjacent to the first body 91. Therefore, each stopper 15H is easily broken at a portion where the groove 156 is formed.
  • the projecting member 82 of the operation pin 8 is initially moved between the fixed contact portion 313 and the movable contact portion 513 because the base 81 contacts the plurality of stoppers 15H. Movement is impeded.
  • the pressure in the pressure chamber 75 increases and the plurality of stoppers 15H break, the protruding member 82 is inserted between the fixed contact portion 313 and the movable contact portion 513.
  • the blocking device 1H may include one annular stopper instead of the plurality of stoppers 15H.
  • the annular stopper protrudes from the inner surface of the first body 91 and is formed in an annular shape along the inner surface of the first body 91.
  • the blocking device 1J further includes a plurality of (two in FIG. 20) stoppers 15J in addition to the configuration of the blocking device 1 of the first embodiment.
  • the plurality of stoppers 15J protrude from the base 81 of the operation pin 8.
  • a plurality of (two in FIG. 20) recesses 912 into which a plurality of stoppers 15J are inserted are formed on the inner surface of the first body 91J of the housing portion 9J.
  • each stopper 15J is formed in each stopper 15J at a position adjacent to the base 81 of the operation pin 8. Therefore, each stopper 15J is easily broken at a portion where the groove 157 is formed.
  • the plurality of stoppers 15J are hooked on the first body 91J in the plurality of recesses 912, so that the protruding member 82 of the operation pin 8 is fixed to the fixed contact portion 313. And the movable contact portion 513 are prevented from moving.
  • the pressure in the pressurizing chamber 75 increases and the plurality of stoppers 15J break, the protruding member 82 is inserted between the fixed contact portion 313 and the movable contact portion 513.
  • the blocking device 1J may include one annular stopper instead of the plurality of stoppers 15J.
  • the annular stopper protrudes from the outer peripheral surface of the base 81 and is formed in an annular shape along the outer peripheral surface of the base 81.
  • the blocking device 1E (or 1F to 1J) further includes a stopper 15 (or 15F to 15J).
  • the stopper 15 moves the operation pin 8 (or 8F, 8G) to the fixed contact portion 313.
  • the movable contact portion 513 are restricted from moving.
  • the operation pin 8 releases the restriction of the stopper 15 by being driven by the driving unit, and moves between the fixed contact unit 313 and the movable contact unit 513.
  • the magnitude of the force applied to the stopper 15 (or 15F to 15J) from the operation pin 8 (or 8F, 8G) depends on the magnitude of the force for releasing the restriction of the stopper 15 (or 15F to 15J).
  • the operation pin 8 (or 8F, 8G) is inserted between the fixed contact portion 313 and the movable contact portion 513. Therefore, the moving speed of the operating pin 8 (or 8F, 8G) between the fixed contact portion 313 and the movable contact portion 513 is increased as compared with the case where the stopper 15 (or 15F to 15J) is not provided, and the arc is rapidly generated. Since it is extended, the arc extinguishing performance of the shutoff device 1E (or 1F to 1J) is further improved.

Abstract

The present disclosure addresses the problem of providing a contact device and a breaker device that can improve arc-extinguishing performance. A fixed member (3) has a fixed contact (31). A movable member (5) has a movable contact (51). A first mask (4) is provided to at least a portion of an area, in the surface region of the fixed member (3), surrounding a fixed contact part (313) and opposing the movable member (5). The fixed contact part (313) is in the fixed contact (31), and is in contact with the movable contact (51). A second mask (6) is provided to at least a portion of an area, in the surface region of the movable member (5), surrounding a movable contact part (513) and opposing the fixed member (3). The movable contact part (513) is in the movable contact (51), and is in contact with the fixed contact (31).

Description

接点装置及び遮断装置Contact device and breaking device
　本開示は接点装置及び遮断装置に関し、より詳細には、固定接点及び可動接点を有する接点装置及びこの接点装置を備える遮断装置に関する。 The present disclosure relates to a contact device and a breaking device, and more particularly, to a contact device having a fixed contact and a movable contact and a breaking device including the contact device.
　従来例として特許文献１記載の回路遮断器（遮断装置）を例示する。上記回路遮断器は、電気回路（電路）に接続されるように設計された少なくとも１つの導電体と、ハウジングと、マトリクスと、パンチと、火工品を用いたアクチュエータと、を備えている。このアクチュエータは、点火されたときにパンチを第１の位置から第２の位置に移動させるように設計されている。パンチ及びマトリクスは、パンチが第１の位置から第２の位置に移動するときに、少なくとも１つの導電体を破断して、少なくとも２つの別個の部分にする。 と し て A circuit breaker (breaking device) described in Patent Document 1 is illustrated as a conventional example. The circuit breaker includes at least one conductor designed to be connected to an electric circuit (electric circuit), a housing, a matrix, a punch, and a pyrotechnic actuator. The actuator is designed to move the punch from a first position to a second position when ignited. The punch and the matrix break at least one electrical conductor into at least two separate portions as the punch moves from the first position to the second position.
　特許文献１に記載されているような回路遮断器において、電路が遮断されたときにアークが発生することがあり、消弧性能の向上を求められることがあった。 に お い て In a circuit breaker as described in Patent Document 1, an arc may be generated when an electric circuit is interrupted, and an improvement in arc extinguishing performance may be required.
特表２０１７－５０７４６９号公報JP-T-2017-507469
　本開示は、消弧性能が向上する接点装置及び遮断装置を提供することを目的とする。 The present disclosure has an object to provide a contact device and an interrupting device with improved arc extinguishing performance.
　本開示の一態様に係る接点装置は、導電性の固定部材と、導電性の可動部材と、を備える。前記接点装置は、電気絶縁性の第１のマスクと、電気絶縁性の第２のマスクと、のうち少なくとも一方を備える。前記固定部材は、固定接点を有する。前記可動部材は、可動接点を有する。前記可動接点は、前記固定接点に接した状態と前記固定接点から離れた状態とのうちいずれかの状態を取る。前記可動部材は、前記固定部材とは別体に形成される。前記第１のマスクは、前記固定部材の表面の領域のうち、固定接触部を囲み前記可動部材に対向する領域の少なくとも一部に設けられる。前記固定接触部は、前記固定接点における前記可動接点との接触部分である。前記第２のマスクは、前記可動部材の表面の領域のうち、可動接触部を囲み前記固定部材に対向する領域の少なくとも一部に設けられる。前記可動接触部は、前記可動接点における前記固定接点との接触部分である。 接点 A contact device according to an aspect of the present disclosure includes a conductive fixed member and a conductive movable member. The contact device includes at least one of an electrically insulating first mask and an electrically insulating second mask. The fixing member has a fixed contact. The movable member has a movable contact. The movable contact takes one of a state of being in contact with the fixed contact and a state of being separated from the fixed contact. The movable member is formed separately from the fixed member. The first mask is provided in at least a part of a region surrounding the fixed contact portion and facing the movable member in a region on the surface of the fixed member. The fixed contact portion is a contact portion of the fixed contact with the movable contact. The second mask is provided in at least a part of a region surrounding the movable contact portion and facing the fixed member in a region on the surface of the movable member. The movable contact portion is a contact portion of the movable contact with the fixed contact.
　本開示の一態様に係る遮断装置は、前記接点装置と、動作ピンと、駆動部と、を備える。前記駆動部は、前記動作ピンを駆動し前記動作ピンを前記固定接触部と前記可動接触部との間に挿入する。 遮断 A breaking device according to an aspect of the present disclosure includes the contact device, an operation pin, and a driving unit. The drive section drives the operation pin and inserts the operation pin between the fixed contact section and the movable contact section.
図１は、実施形態１に係る遮断装置の斜視図である。FIG. 1 is a perspective view of the blocking device according to the first embodiment. 図２は、同上の遮断装置の断面斜視図である。FIG. 2 is a cross-sectional perspective view of the shutoff device according to the first embodiment. 図３は、同上の遮断装置の接点装置の分解斜視図である。FIG. 3 is an exploded perspective view of a contact device of the above-mentioned breaking device. 図４は、同上の遮断装置の断面図であって、動作ピンが駆動される前の状態を示す。FIG. 4 is a cross-sectional view of the shut-off device, showing a state before an operation pin is driven. 図５は、同上の遮断装置の断面図であって、動作ピンが駆動されて進み切った状態を示す。FIG. 5 is a cross-sectional view of the shut-off device, showing a state in which the operation pin is driven and advanced. 図６は、同上の遮断装置の要部の断面図であって、動作ピンが駆動されて途中まで進んだ状態を示す。FIG. 6 is a cross-sectional view of a main part of the shutoff device, showing a state in which the operation pin is driven and has advanced halfway. 図７は、同上の遮断装置の要部の断面図であって、動作ピンが駆動されて進みきった状態を示す。FIG. 7 is a cross-sectional view of a main part of the shut-off device, showing a state in which the operation pin has been driven and has advanced. 図８は、実施形態２に係る遮断装置の接点装置の分解斜視図である。FIG. 8 is an exploded perspective view of the contact device of the breaking device according to the second embodiment. 図９は、同上の遮断装置の要部の断面図であって、動作ピンが駆動される前の状態を示す。FIG. 9 is a cross-sectional view of a main part of the shutoff device, showing a state before the operation pin is driven. 図１０は、同上の遮断装置の要部の断面図であって、動作ピンが駆動された後の状態を示す。FIG. 10 is a cross-sectional view of a main part of the above-described shut-off device, showing a state after an operation pin is driven. 図１１は、実施形態３に係る遮断装置の要部の断面図である。FIG. 11 is a cross-sectional view of a main part of the shutoff device according to the third embodiment. 図１２は、実施形態３の変形例に係る遮断装置の要部の断面図である。FIG. 12 is a cross-sectional view of a main part of a blocking device according to a modification of the third embodiment. 図１３は、実施形態４に係る遮断装置の要部の断面図である。FIG. 13 is a cross-sectional view of a main part of the shutoff device according to the fourth embodiment. 図１４は、実施形態５に係る遮断装置の要部の断面図である。FIG. 14 is a cross-sectional view of a main part of the shutoff device according to the fifth embodiment. 図１５Ａは、実施形態５の変形例１に係る遮断装置の要部の平面図である。図１５Ｂは、同上の遮断装置の要部の正面図である。FIG. 15A is a plan view of a main part of a blocking device according to a first modification of the fifth embodiment. FIG. 15B is a front view of a main part of the shutoff device. 図１６は、同上の遮断装置のストッパの正面図である。FIG. 16 is a front view of a stopper of the shutoff device according to the third embodiment. 図１７は、同上の遮断装置の動作ピンの側面図である。FIG. 17 is a side view of an operation pin of the shutoff device according to the third embodiment. 図１８は、実施形態５の変形例２に係る遮断装置の要部の断面図である。FIG. 18 is a cross-sectional view of a main part of a blocking device according to a second modification of the fifth embodiment. 図１９は、実施形態５の変形例３に係る遮断装置の要部の断面図である。FIG. 19 is a cross-sectional view of a main part of a blocking device according to a third modification of the fifth embodiment. 図２０は、実施形態５の変形例４に係る遮断装置の要部の断面図である。FIG. 20 is a cross-sectional view of a main part of a blocking device according to a fourth modification of the fifth embodiment.
　以下、実施形態に係る接点装置及び遮断装置について、図面を用いて説明する。ただし、下記の各実施形態は、本開示の様々な実施形態の一部に過ぎない。下記の各実施形態は、本開示の目的を達成できれば、設計等に応じて種々の変更が可能である。また、下記の各実施形態において説明する各図は、模式的な図であり、図中の各構成要素の大きさ及び厚さそれぞれの比が必ずしも実際の寸法比を反映しているとは限らない。 Hereinafter, the contact device and the breaking device according to the embodiment will be described with reference to the drawings. However, each of the following embodiments is only a part of various embodiments of the present disclosure. Various modifications can be made to the following embodiments according to the design and the like as long as the object of the present disclosure can be achieved. Also, the drawings described in the following embodiments are schematic diagrams, and the ratio of the size and thickness of each component in the drawings does not necessarily reflect the actual dimensional ratio. Absent.
　（実施形態１）
　本実施形態の遮断装置１は、図１、２に示すように、接点装置２と、動作ピン８と、ガス発生器７（駆動部）と、を備えている。遮断装置１は、収容部９（ハウジング）を更に備えている。 (Embodiment 1)
As shown in FIGS. 1 and 2, the shutoff device 1 of the present embodiment includes a contact device 2, an operation pin 8, and a gas generator 7 (drive unit). The blocking device 1 further includes a housing 9 (housing).
　ガス発生器７は、燃料７４を含む。燃料７４は、例えば、ニトロセルロース等の火薬である。ガス発生器７は、燃料７４を燃焼させることによりガスを発生する。 The gas generator 7 contains the fuel 74. The fuel 74 is, for example, an explosive such as nitrocellulose. The gas generator 7 generates gas by burning the fuel 74.
　接点装置２は、導電性の固定部材３と、導電性の可動部材５と、を備えている。固定部材３及び可動部材５は、電路の一部を構成する。通常時は、可動部材５が固定部材３に接している。これにより固定部材３と可動部材５とが電気的に接続されている。固定部材３及び可動部材５を含む電路に過電流等の異常電流が流れると、ガス発生器７で燃料７４が燃焼させられてガスが発生する。動作ピン８は、ガス発生器７で発生したガスの圧力により駆動される。すると、可動部材５が動作ピン８により移動させられて、固定部材３から離れる。これにより、電路が遮断される。 The contact device 2 includes a conductive fixed member 3 and a conductive movable member 5. The fixed member 3 and the movable member 5 form a part of an electric path. Normally, the movable member 5 is in contact with the fixed member 3. Thus, the fixed member 3 and the movable member 5 are electrically connected. When an abnormal current such as an overcurrent flows in an electric circuit including the fixed member 3 and the movable member 5, the fuel 74 is burned by the gas generator 7 to generate gas. The operation pin 8 is driven by the pressure of the gas generated by the gas generator 7. Then, the movable member 5 is moved by the operation pin 8 and separates from the fixed member 3. Thereby, the electric circuit is cut off.
　収容部９は、例えば、樹脂により形成されている。収容部９は、第１ボディ９１と、第２ボディ９５と、を有している。第１ボディ９１は、円筒状の筒状部９２と、筒状部９２の軸方向の一端から筒状部の径方向に突出した第１フランジ部９３と、を含む。第２ボディ９５は、角柱状の柱状部９６と、第２フランジ部９７と、を含む。柱状部９６のうち軸方向の一端には、窪み９６１が形成されている。第２フランジ部９７は、柱状部９６における窪み９６１の付近から突出している。第１フランジ部９３及び第２フランジ部９７は、互いに平行な板状である。第１ボディ９１と第２ボディ９５とは、第１フランジ部９３及び第２フランジ部９７において互いに合わさっている。収容部９は、ガス発生器７及び動作ピン８を収容している。 The housing 9 is formed of, for example, resin. The accommodation section 9 has a first body 91 and a second body 95. The first body 91 includes a cylindrical tubular portion 92 and a first flange portion 93 protruding from one axial end of the tubular portion 92 in a radial direction of the tubular portion. The second body 95 includes a prismatic columnar portion 96 and a second flange portion 97. A recess 961 is formed at one end of the columnar portion 96 in the axial direction. The second flange portion 97 protrudes from the vicinity of the depression 961 in the columnar portion 96. The first flange portion 93 and the second flange portion 97 are plate-shaped parallel to each other. The first body 91 and the second body 95 are joined to each other at a first flange portion 93 and a second flange portion 97. The housing 9 houses the gas generator 7 and the operating pin 8.
　図３、４に示すように、接点装置２は、第１のマスク４と第２のマスク６との両方を備えている。第１のマスク４と第２のマスク６とはそれぞれ、電気絶縁性を有している。接点装置２は、第１のマスク４と第２のマスク６との両方を備えていることに限定されず、第１のマスク４と第２のマスク６とのうち少なくとも一方を備えていればよい。 接点 As shown in FIGS. 3 and 4, the contact device 2 includes both the first mask 4 and the second mask 6. The first mask 4 and the second mask 6 each have electrical insulation. The contact device 2 is not limited to having both the first mask 4 and the second mask 6, as long as it has at least one of the first mask 4 and the second mask 6. Good.
　第１のマスク４及び第２のマスク６は、例えば、樹脂により形成されている。第１のマスク４は、固定部材３の一部を覆っている。第２のマスク６は、可動部材５の一部を覆っている。後述するように、第１のマスク４及び第２のマスク６は、固定部材３と可動部材５との間に発生するアークを構成する粒子の放出を制限する。アークを構成する粒子とは、例えば、電子、金属蒸気及びプラズマ粒子である。また、第１のマスク４は、固定部材３に固定される。ただし、第１のマスク４は、固定部材３ではなく収容部９に固定されてもよい。第２のマスク６は、可動部材５に固定される。ただし、第２のマスク６は、可動部材５ではなく収容部９に固定されてもよい。 {Circle around (1)} The first mask 4 and the second mask 6 are formed of, for example, a resin. The first mask 4 covers a part of the fixing member 3. The second mask 6 covers a part of the movable member 5. As will be described later, the first mask 4 and the second mask 6 limit the emission of particles constituting an arc generated between the fixed member 3 and the movable member 5. The particles constituting the arc are, for example, electrons, metal vapor, and plasma particles. Further, the first mask 4 is fixed to the fixing member 3. However, the first mask 4 may be fixed to the housing 9 instead of the fixing member 3. The second mask 6 is fixed to the movable member 5. However, the second mask 6 may be fixed to the housing 9 instead of the movable member 5.
　接点装置２は、接圧ばね２１を更に備えている。第１のマスク４、第２のマスク６及び接圧ばね２１は、収容部９に収容されている。 The contact device 2 further includes a contact pressure spring 21. The first mask 4, the second mask 6, and the contact pressure spring 21 are housed in the housing 9.
　固定部材３は、固定接点３１と、固定片３２と、を有している。固定接点３１と固定片３２とは、収容部９に収容されている。固定接点３１は、例えば、銅及び銀等を材料として形成されている。固定接点３１は、リベット状である。固定接点３１は、円盤状の頭部３１１と、頭部３１１から突出した軸部３１２とを含む。固定片３２は、板状である。固定接点３１は、固定片３２に設けられている。より詳細には、固定接点３１は、固定片３２にかしめにより取り付けられている。すなわち、固定片３２に形成された貫通孔に固定接点３１の軸部３１２が通された状態で、軸部３１２の先端がかしめられることで、固定接点３１が固定片３２に取り付けられている。 The fixing member 3 has a fixed contact 31 and a fixed piece 32. The fixed contact 31 and the fixed piece 32 are housed in the housing 9. The fixed contact 31 is formed of, for example, copper, silver, or the like. The fixed contact 31 has a rivet shape. The fixed contact 31 includes a disk-shaped head 311 and a shaft 312 protruding from the head 311. The fixing piece 32 has a plate shape. The fixed contact 31 is provided on the fixed piece 32. More specifically, the fixed contact 31 is attached to the fixed piece 32 by caulking. In other words, the fixed contact 31 is attached to the fixed piece 32 by caulking the tip of the shaft 312 in a state where the shaft 312 of the fixed contact 31 is passed through the through hole formed in the fixed piece 32.
　可動部材５は、固定部材３とは別体に形成されている。可動部材５は、可動接点５１と、可動片５２と、を有している。収容部９は、可動接点５１と可動片５２とを収容している。可動接点５１は、例えば、銅及び銀等を材料として形成されている。可動接点５１は、リベット状である。可動接点５１は、半球状の頭部５１１と、頭部５１１から突出した軸部５１２とを含む。可動片５２は、板状である。可動接点５１は、可動片５２に設けられている。より詳細には、可動接点５１は、可動片５２にかしめにより取り付けられている。すなわち、可動片５２に形成された貫通孔に可動接点５１の軸部５１２が通された状態で、軸部５１２の先端が潰されることで、可動接点５１が可動片５２に取り付けられている。 The movable member 5 is formed separately from the fixed member 3. The movable member 5 has a movable contact 51 and a movable piece 52. The housing 9 houses the movable contact 51 and the movable piece 52. The movable contact 51 is made of, for example, copper, silver, or the like. The movable contact 51 has a rivet shape. The movable contact 51 includes a hemispherical head 511 and a shaft 512 protruding from the head 511. The movable piece 52 has a plate shape. The movable contact 51 is provided on the movable piece 52. More specifically, the movable contact 51 is attached to the movable piece 52 by caulking. That is, in a state where the shaft portion 512 of the movable contact 51 is passed through the through hole formed in the movable piece 52, the tip of the shaft portion 512 is crushed, so that the movable contact 51 is attached to the movable piece 52.
　可動接点５１は、固定接点３１に接した状態と固定接点３１から離れた状態とのうちいずれかの状態を取る。固定接点３１は、固定接触部３１３を含む。固定接触部３１３は、固定接点３１における可動接点５１との接触部分である。固定接点３１の頭部３１１のうち、軸部３１２側とは反対側の表面が、固定接触部３１３に相当する。可動接点５１は、可動接触部５１３を含む。可動接触部５１３は、可動接点５１における固定接点３１との接触部分である。可動接点５１の頭部５１１のうち、軸部５１２側とは反対側の表面が、可動接触部５１３に相当する。 The movable contact 51 takes one of a state in which it is in contact with the fixed contact 31 and a state in which it is separated from the fixed contact 31. The fixed contact 31 includes a fixed contact portion 313. The fixed contact portion 313 is a contact portion of the fixed contact 31 with the movable contact 51. The surface of the head 311 of the fixed contact 31 opposite to the shaft portion 312 corresponds to the fixed contact portion 313. The movable contact 51 includes a movable contact portion 513. The movable contact portion 513 is a contact portion of the movable contact 51 with the fixed contact 31. The surface of the head 511 of the movable contact 51 opposite to the shaft portion 512 side corresponds to the movable contact portion 513.
　なお、固定接点３１と固定部材３とは一体の部材として構成されてもよいし、固定接点３１は固定部材３の一部で構成されてもよい。固定接点３１と固定片３２とは一体の部材として構成されてもよい。可動接点５１と可動部材５とは一体の部材として構成されてもよいし、可動接点５１は可動部材５の一部で構成されてもよい。可動接点５１と可動片５２とは一体の部材として構成されてもよい。 The fixed contact 31 and the fixed member 3 may be formed as an integral member, or the fixed contact 31 may be formed as a part of the fixed member 3. The fixed contact 31 and the fixed piece 32 may be configured as an integral member. The movable contact 51 and the movable member 5 may be configured as an integral member, or the movable contact 51 may be configured as a part of the movable member 5. The movable contact 51 and the movable piece 52 may be configured as an integral member.
　また、固定接点３１及び可動接点５１はそれぞれ、単数であってもよいし、複数であってもよい。固定接点３１が複数の場合に、複数の固定接点３１は、動作ピン８の進行方向に並んで設けられてもよいし、動作ピン８の進行方向と、固定片３２と可動片５２との対向方向と、に対して直交する方向（図４の紙面奥行き方向）に並んで設けられてもよい。可動接点５１が複数の場合に、複数の可動接点５１は、動作ピン８の進行方向に並んで設けられてもよいし、動作ピン８の進行方向と、固定片３２と可動片５２との対向方向と、に対して直交する方向に並んで設けられてもよい。 固定 Further, each of the fixed contact 31 and the movable contact 51 may be singular or plural. When there are a plurality of fixed contacts 31, the plurality of fixed contacts 31 may be provided side by side in the traveling direction of the operation pin 8, or the traveling direction of the operation pin 8 and the opposition between the fixed piece 32 and the movable piece 52. It may be provided side by side in a direction perpendicular to the direction (the depth direction in the drawing of FIG. 4). When there are a plurality of movable contacts 51, the plurality of movable contacts 51 may be provided side by side in the traveling direction of the operation pin 8, or the traveling direction of the operation pin 8 may be opposite to the fixed piece 32 and the movable piece 52. It may be provided side by side in a direction orthogonal to the direction.
　ガス発生器７は、動作ピン８を駆動し、動作ピン８を固定接触部３１３と可動接触部５１３との間に挿入する。これにより、図５に示すように、可動接触部５１３が固定接触部３１３から離れる。可動接触部５１３の進行方向（固定接触部３１３からの開離方向）は、動作ピン８の進行方向と交差する。より詳細には、可動接触部５１３の進行方向は、動作ピン８の進行方向と直交する。 The gas generator 7 drives the operation pin 8 and inserts the operation pin 8 between the fixed contact portion 313 and the movable contact portion 513. Thereby, as shown in FIG. 5, the movable contact part 513 separates from the fixed contact part 313. The traveling direction of the movable contact portion 513 (the direction of separation from the fixed contact portion 313) intersects with the traveling direction of the operation pin 8. More specifically, the traveling direction of the movable contact portion 513 is orthogonal to the traveling direction of the operation pin 8.
　動作ピン８が固定接触部３１３と可動接触部５１３との間に挿入されていない状態では、接圧ばね２１の弾性力により、可動接触部５１３が固定接触部３１３に接した状態が保たれる。 When the operation pin 8 is not inserted between the fixed contact portion 313 and the movable contact portion 513, the state where the movable contact portion 513 is in contact with the fixed contact portion 313 is maintained by the elastic force of the contact pressure spring 21. .
　図３、４に示すように、第１のマスク４は、固定部材３の表面の領域のうち、固定接触部３１３を囲み可動部材５に対向する領域の少なくとも一部に設けられている。つまり、第１のマスク４は、固定部材３の一部を覆っている。本実施形態では、第１のマスク４は、固定接触部３１３を囲んでいる。また、第１のマスク４は、固定部材３に接している。第１のマスク４は、第２ボディ９５の柱状部９６の内面から突出した当接部９８に接している。当接部９８には、ガス発生器７により駆動された動作ピン８の先端が接する。 As shown in FIGS. 3 and 4, the first mask 4 is provided in at least a part of a region surrounding the fixed contact portion 313 and facing the movable member 5 in the surface region of the fixed member 3. That is, the first mask 4 covers a part of the fixing member 3. In the present embodiment, the first mask 4 surrounds the fixed contact portion 313. Further, the first mask 4 is in contact with the fixing member 3. The first mask 4 is in contact with a contact portion 98 protruding from the inner surface of the columnar portion 96 of the second body 95. The tip of the operating pin 8 driven by the gas generator 7 contacts the contact portion 98.
　第１のマスク４は、各々が板状の第１壁部４１と、第２壁部４２と、第３壁部４３と、第４壁部４４と、を含む。第１壁部４１は、長方形状である。第２壁部４２、第３壁部４３及び第４壁部４４は、第１壁部４１の３辺から第１壁部４１の厚さ方向に突出している。 The first mask 4 includes a first wall 41, a second wall 42, a third wall 43, and a fourth wall 44, each of which has a plate shape. The first wall portion 41 has a rectangular shape. The second wall portion 42, the third wall portion 43, and the fourth wall portion 44 protrude from three sides of the first wall portion 41 in the thickness direction of the first wall portion 41.
　図３、５に示すように、第１のマスク４の第１壁部４１は、第１の開口部４１０を有している。第１の開口部４１０は、円形である。第１の開口部４１０の大きさは、固定接点３１の頭部３１１の大きさと同程度である。第１のマスク４は、第１の開口部４１０の内縁において固定接触部３１３を囲んでいる。より詳細には、第１のマスク４は、第１の開口部４１０の内側に固定接点３１の頭部３１１が位置している状態で、固定部材３に保持されている。また、固定接点３１の軸部３１２及び固定片３２は、第１のマスク４の第１壁部４１、第２壁部４２、第３壁部４３及び第４壁部４４と、第２ボディ９５の内面とに囲まれた空間１０１に配置されている。固定接触部３１３は、第１の開口部４１０において空間１０１の外に露出している。固定接触部３１３と、第１の開口部４１０の周囲における第１のマスク４の外面とは、面一である。 、 ５As shown in FIGS. 3 and 5, the first wall 41 of the first mask 4 has a first opening 410. The first opening 410 is circular. The size of the first opening 410 is substantially the same as the size of the head 311 of the fixed contact 31. The first mask 4 surrounds the fixed contact portion 313 at the inner edge of the first opening 410. More specifically, the first mask 4 is held by the fixing member 3 in a state where the head 311 of the fixed contact 31 is located inside the first opening 410. The shaft 312 and the fixed piece 32 of the fixed contact 31 are connected to the first wall 41, the second wall 42, the third wall 43 and the fourth wall 44 of the first mask 4, and the second body 95. Are arranged in a space 101 surrounded by the inner surface of The fixed contact portion 313 is exposed outside the space 101 at the first opening 410. The fixed contact portion 313 and the outer surface of the first mask 4 around the first opening 410 are flush with each other.
　第２のマスク６は、可動部材５の表面の領域のうち、可動接触部５１３を囲み固定部材３に対向する領域の少なくとも一部に設けられている。つまり、第２のマスク６は、可動部材５の一部を覆っている。本実施形態では、第２のマスク６は、可動接触部５１３を囲んでいる。また、第２のマスク６は、可動部材５に接している。 {Circle around (2)} The second mask 6 is provided in at least a part of a region surrounding the movable contact portion 513 and facing the fixed member 3 in a region on the surface of the movable member 5. That is, the second mask 6 covers a part of the movable member 5. In the present embodiment, the second mask 6 surrounds the movable contact portion 513. Further, the second mask 6 is in contact with the movable member 5.
　第２のマスク６は、各々が板状の第１壁部６１と、第２壁部６２と、第３壁部６３と、第４壁部６４と、を含む。第１壁部６１は、長方形状である。第２壁部６２、第３壁部６３及び第４壁部６４は、第１壁部６１の３辺から第１壁部６１の厚さ方向に突出している。 The second mask 6 includes a first wall 61, a second wall 62, a third wall 63, and a fourth wall 64, each of which has a plate shape. The first wall 61 has a rectangular shape. The second wall portion 62, the third wall portion 63, and the fourth wall portion 64 protrude from three sides of the first wall portion 61 in the thickness direction of the first wall portion 61.
　第２のマスク６の第１壁部６１は、第２の開口部６１０を有している。第２の開口部６１０は、円形である。第２の開口部６１０の大きさは、可動接点５１の頭部５１１の大きさと同程度である。第２のマスク６は、第２の開口部６１０の内縁において可動接触部５１３を囲んでいる。より詳細には、第２のマスク６は、第２の開口部６１０の内側に可動接点５１の頭部５１１が位置している状態で、可動部材５に保持されている。また、可動接点５１の軸部５１２及び可動片５２は、第２のマスク６の第１壁部６１、第２壁部６２、第３壁部６３及び第４壁部６４に囲まれた空間１０２に配置されている。可動接触部５１３は、第２の開口部６１０において空間１０２の外に露出している。 第 The first wall 61 of the second mask 6 has a second opening 610. The second opening 610 is circular. The size of the second opening 610 is substantially the same as the size of the head 511 of the movable contact 51. The second mask 6 surrounds the movable contact portion 513 at the inner edge of the second opening 610. More specifically, the second mask 6 is held by the movable member 5 in a state where the head 511 of the movable contact 51 is located inside the second opening 610. Further, the shaft portion 512 and the movable piece 52 of the movable contact 51 are formed in a space 102 surrounded by the first wall portion 61, the second wall portion 62, the third wall portion 63, and the fourth wall portion 64 of the second mask 6. Are located in The movable contact portion 513 is exposed outside the space 102 at the second opening 610.
　図４に示すように、接点装置２は、端子部２２と、編組線２３と、を更に備えている。固定部材３は、端子部３３を更に有している。 接点 As shown in FIG. 4, the contact device 2 further includes a terminal portion 22 and a braided wire 23. The fixing member 3 further has a terminal portion 33.
　端子部２２、３３は、板状である。端子部２２、３３は、収容部９の第１ボディ９１と第２ボディ９５との間に通されており、収容部９の外部へ突出している。端子部２２は、編組線２３を介して可動片５２に電気的に接続されている。端子部３３は、固定片３２と一体に形成されている。 The terminal portions 22 and 33 are plate-shaped. The terminal portions 22 and 33 are passed between the first body 91 and the second body 95 of the housing portion 9 and protrude outside the housing portion 9. The terminal portion 22 is electrically connected to the movable piece 52 via the braided wire 23. The terminal portion 33 is formed integrally with the fixing piece 32.
　端子部３３から固定片３２、固定接点３１、可動接点５１、可動片５２、編組線２３及び端子部２２に至る経路は、電路の一部を構成する。可動接点５１が固定接点３１から離れることで、電路が遮断される。 The path from the terminal portion 33 to the fixed piece 32, the fixed contact 31, the movable contact 51, the movable piece 52, the braided wire 23, and the terminal portion 22 forms a part of an electric path. When the movable contact 51 separates from the fixed contact 31, the electric circuit is cut off.
　可動接触部５１３が固定接触部３１３に接して電路が構成されており、かつ電路に電流が流れているとき、固定接点３１と可動接点５１との間には、電磁反発力が作用する。電磁反発力は、可動接点５１が固定接点３１から開離するように作用する。電路に流れる電流が大きいほど電磁反発力は大きくなる。 (4) When the movable contact portion 513 is in contact with the fixed contact portion 313 to form an electric circuit, and an electric current flows through the electric circuit, an electromagnetic repulsive force acts between the fixed contact 31 and the movable contact 51. The electromagnetic repulsion acts so that the movable contact 51 is separated from the fixed contact 31. The larger the current flowing in the electric circuit, the larger the electromagnetic repulsion.
　接圧ばね２１は、圧縮ばねである。より詳細には、接圧ばね２１は、圧縮コイルばねである。接圧ばね２１は、端子部２２と可動片５２との間に配置されている。接圧ばね２１の両端は、端子部２２と可動片５２とに接続されている。動作ピン８が固定接触部３１３と可動接触部５１３との間に挿入されていない状態では、接圧ばね２１は、固定接点３１と可動接点５１との間の電磁反発力に抗して、可動接触部５１３が固定接触部３１３に接した状態を保つ。固定接触部３１３と可動接触部５１３との間に動作ピン８が挿入され、可動接点５１が固定接点３１から離れるように移動するとき、可動片５２は、接圧ばね２１を圧縮しながら端子部２２に近づくように移動する。 The contact pressure spring 21 is a compression spring. More specifically, the contact pressure spring 21 is a compression coil spring. The contact pressure spring 21 is arranged between the terminal portion 22 and the movable piece 52. Both ends of the contact pressure spring 21 are connected to the terminal portion 22 and the movable piece 52. When the operating pin 8 is not inserted between the fixed contact portion 313 and the movable contact portion 513, the contact pressure spring 21 is movable against the electromagnetic repulsion between the fixed contact 31 and the movable contact 51. The state where the contact portion 513 is in contact with the fixed contact portion 313 is maintained. When the operating pin 8 is inserted between the fixed contact portion 313 and the movable contact portion 513, and the movable contact 51 moves away from the fixed contact 31, the movable piece 52 compresses the contact pressure spring 21 while the terminal portion is compressed. Move to approach 22.
　ガス発生器７は、燃料７４に加えて、ケース７１と、２つのピン電極７２と、発熱素子７３と、を含む。ケース７１は、中空の円柱状である。遮断装置１は、ケース７１の外縁と筒状部９２の内面との間に介在する第１のＯ（オー）リング１１を更に備えている。 The gas generator 7 includes a case 71, two pin electrodes 72, and a heating element 73 in addition to the fuel 74. The case 71 has a hollow cylindrical shape. The blocking device 1 further includes a first O (O) ring 11 interposed between the outer edge of the case 71 and the inner surface of the tubular portion 92.
　ガス発生器７の２つのピン電極７２は、ケース７１に収容されている。２つのピン電極７２の各々の第１端は、収容部９の外部に露出している。２つのピン電極７２の各々の第２端は、発熱素子７３に接続されている。発熱素子７３は、ケース７１のうち、燃料７４が収容された空間に配置されている。 ２ The two pin electrodes 72 of the gas generator 7 are housed in the case 71. The first ends of the two pin electrodes 72 are exposed to the outside of the housing 9. A second end of each of the two pin electrodes 72 is connected to the heating element 73. The heating element 73 is arranged in a space of the case 71 in which the fuel 74 is stored.
　動作ピン８は、電気絶縁性を有する絶縁部を有している。動作ピン８は、例えば、樹脂により形成されている。動作ピン８は、ガス発生器７と接点装置２との間に配置されている。動作ピン８は、ベース８１と、ベース８１から突出した突出部材８２と、を有している。本実施形態の動作ピン８では、動作ピン８の全体が絶縁部である。動作ピン８が固定接触部３１３と可動接触部５１３との間に挿入されたとき、突出部材８２により固定接触部３１３と可動接触部５１３との間が電気的に絶縁される。なお、ベース８１は電気絶縁性を有していなくてもよい。電気絶縁性を有する絶縁部は、突出部材８２の少なくとも一部であってもよい。例えば、絶縁部は、突出部材８２のうち先端を除く部位であってもよい。動作ピン８のうち絶縁部以外の部位は、例えば、金属により形成されていてもよい。 (4) The operation pin 8 has an insulating portion having electric insulation. The operation pin 8 is formed of, for example, a resin. The operating pin 8 is arranged between the gas generator 7 and the contact device 2. The operation pin 8 has a base 81 and a projecting member 82 projecting from the base 81. In the operation pin 8 of the present embodiment, the entire operation pin 8 is an insulating portion. When the operation pin 8 is inserted between the fixed contact portion 313 and the movable contact portion 513, the projecting member 82 electrically insulates the fixed contact portion 313 from the movable contact portion 513. The base 81 does not have to have electrical insulation. The insulating portion having electrical insulation properties may be at least a part of the protruding member 82. For example, the insulating portion may be a portion of the protruding member 82 except the tip. The portion of the operation pin 8 other than the insulating portion may be formed of, for example, metal.
　ベース８１は、有底円筒状である。ベース８１の外縁には、ベース８１の周方向に沿った円環形の溝８１１が形成されている。遮断装置１は、溝８１１に嵌め込まれている第２のＯリング１２を更に備えている。第２のＯリング１２の外縁は、筒状部９２の内面に接している。溝８１１の内面及び筒状部９２の内面と、第２のＯリング１２との間の摩擦力により、動作ピン８が筒状部９２の内側において筒状部９２に保持されている。 The base 81 is a bottomed cylindrical shape. On the outer edge of the base 81, an annular groove 811 is formed along the circumferential direction of the base 81. The blocking device 1 further includes a second O-ring 12 fitted into the groove 811. The outer edge of the second O-ring 12 is in contact with the inner surface of the cylindrical portion 92. The operating pin 8 is held by the cylindrical portion 92 inside the cylindrical portion 92 by a frictional force between the inner surface of the groove 811 and the inner surface of the cylindrical portion 92 and the second O-ring 12.
　ガス発生器７のケース７１と動作ピン８のベース８１との間には、ガス発生器７で発生したガスが導入される空間である加圧室７５が設けられている。 加 圧 A pressurizing chamber 75 is provided between the case 71 of the gas generator 7 and the base 81 of the operation pin 8 as a space into which gas generated by the gas generator 7 is introduced.
　発熱素子７３は、例えば、ニクロム線である。２つのピン電極７２は、例えば、遮断装置１の動作を制御するための制御回路に接続される。遮断装置１は、例えば、電動車両等の車両に備えられ、制御回路は、過電流等の異常電流を検知した場合、及び、車両の衝突等による車両に対する衝撃を検知した場合等に２つのピン電極７２に通電する。ガス発生器７の２つのピン電極７２を介して発熱素子７３が通電されると、発熱素子７３が熱を発生する。発熱素子７３で発生した熱により燃料７４が点火され、燃料７４が燃焼してガスを発生する。ガスは、ケース７１において燃料７４を収容する空間の圧力を上昇させて、この空間を構成する壁を破断し（図５参照）、この破断した部分を通して加圧室７５に導入されて加圧室７５内の圧力を上昇させる。加圧室７５内のガスの圧力により、動作ピン８は、第２のＯリング１２における摩擦力に抗して駆動され、動作ピン８の突出部材８２は、固定接触部３１３と可動接触部５１３との間に挿入される。 The heating element 73 is, for example, a nichrome wire. The two pin electrodes 72 are connected to, for example, a control circuit for controlling the operation of the cutoff device 1. The shutoff device 1 is provided, for example, in a vehicle such as an electric vehicle, and the control circuit detects two pins when an abnormal current such as an overcurrent is detected and when an impact on the vehicle due to a collision of the vehicle is detected. The electrode 72 is energized. When the heating element 73 is energized through the two pin electrodes 72 of the gas generator 7, the heating element 73 generates heat. The fuel 74 is ignited by the heat generated by the heating element 73, and the fuel 74 burns to generate gas. The gas raises the pressure of the space that accommodates the fuel 74 in the case 71, breaks the walls that make up this space (see FIG. 5), and is introduced into the pressurizing chamber 75 through the broken portion to be pressed. The pressure in 75 is increased. The operating pin 8 is driven against the frictional force of the second O-ring 12 by the pressure of the gas in the pressurizing chamber 75, and the protruding member 82 of the operating pin 8 separates the fixed contact portion 313 and the movable contact portion 513. Inserted between
　突出部材８２は、ベース８１の外底面からベース８１の軸方向に突出している。突出部材８２は、ベース８１と一体に形成されている。ガス発生器７でガスが発生すると、動作ピン８は、突出部材８２の突出方向に進行する。突出部材８２は、動作ピン８の進行方向における先端を含む部位がテーパ状となった角柱状である。すなわち、動作ピン８は、進行方向における先端に傾斜面８２１を含む。また、突出部材８２の外周面８２２は、動作ピン８の進行方向に沿った第１の面８２３と、動作ピン８の進行方向に沿っており第１の面８２３とは反対側の第２の面８２４と、を含む。 The projecting member 82 projects from the outer bottom surface of the base 81 in the axial direction of the base 81. The protruding member 82 is formed integrally with the base 81. When gas is generated by the gas generator 7, the operation pin 8 advances in the direction in which the projecting member 82 projects. The protruding member 82 has a prismatic shape in which a portion including the tip in the traveling direction of the operation pin 8 is tapered. That is, the operation pin 8 includes the inclined surface 821 at the tip in the traveling direction. Further, an outer peripheral surface 822 of the protruding member 82 has a first surface 823 along the traveling direction of the operation pin 8 and a second surface 823 along the traveling direction of the operation pin 8 and opposite to the first surface 823. Surface 824.
　傾斜面８２１は、第２のマスク６に接している。第２のマスク６において、傾斜面８２１と接する面は、傾斜面６０１となっている。傾斜面６０１は、第２のマスク６のうち、固定部材３側の端に形成されている。傾斜面６０１の法線方向は、傾斜面８２１の法線方向と交差する。ガス発生器７に駆動された動作ピン８は、傾斜面８２１において第２のマスク６を押しながら、第２のマスク６と固定部材３との間に挿入される。動作ピン８が傾斜面８２１において第２のマスク６を押すことで、第２のマスク６を介して可動部材５が押され、可動部材５が固定部材３から離れる向きに移動する。その結果、固定接触部３１３に接した状態の可動接触部５１３は、固定接触部３１３から離れた状態となる、又は可動接触部５１３と固定接触部３１３との接触領域（接触面積）が小さくなる。これにより、この後に突出部材８２が固定接触部３１３と可動接触部５１３との間に挿入されて、動作ピン８が可動接触部５１３に衝突する場合に動作ピン８に作用する力を減少させることができ、動作ピン８が破損又は変形する可能性を低減できる。そのため、電路の遮断性能に関する信頼性が向上する。より詳細には、動作ピン８は樹脂製であって、金属製の可動接触部５１３よりも柔らかいので、動作ピン８が可動接触部５１３に衝突して動作ピン８が可動接触部５１３と固定接触部３１３との間隔を押し広げるように可動接触部５１３に作用すると、動作ピン８が破損又は変形する可能性がある。遮断装置１では、可動接触部５１３が固定接触部３１３から離れてから、動作ピン８が可動接触部５１３と固定接触部３１３との間に挿入されるので、動作ピン８が破損又は変形する可能性を低減できる。 The inclined surface 821 is in contact with the second mask 6. In the second mask 6, a surface in contact with the inclined surface 821 is an inclined surface 601. The inclined surface 601 is formed at the end of the second mask 6 on the fixing member 3 side. The normal direction of the inclined surface 601 intersects the normal direction of the inclined surface 821. The operation pin 8 driven by the gas generator 7 is inserted between the second mask 6 and the fixing member 3 while pressing the second mask 6 on the inclined surface 821. When the operating pin 8 pushes the second mask 6 on the inclined surface 821, the movable member 5 is pushed via the second mask 6, and the movable member 5 moves in a direction away from the fixed member 3. As a result, the movable contact portion 513 in contact with the fixed contact portion 313 is separated from the fixed contact portion 313, or the contact area (contact area) between the movable contact portion 513 and the fixed contact portion 313 is reduced. . Thereby, after that, the projecting member 82 is inserted between the fixed contact portion 313 and the movable contact portion 513 to reduce the force acting on the operation pin 8 when the operation pin 8 collides with the movable contact portion 513. Thus, the possibility that the operation pin 8 is damaged or deformed can be reduced. For this reason, the reliability regarding the interruption performance of the electric circuit is improved. More specifically, since the operation pin 8 is made of resin and is softer than the metal movable contact portion 513, the operation pin 8 collides with the movable contact portion 513 and the operation pin 8 makes fixed contact with the movable contact portion 513. When acting on the movable contact portion 513 so as to widen the gap with the portion 313, the operating pin 8 may be damaged or deformed. In the shutoff device 1, since the operation pin 8 is inserted between the movable contact portion 513 and the fixed contact portion 313 after the movable contact portion 513 is separated from the fixed contact portion 313, the operation pin 8 can be damaged or deformed. Performance can be reduced.
　動作ピン８の移動に伴い、固定接触部３１３と可動接触部５１３との間には、突出部材８２を挿入可能な隙間が生じる。突出部材８２は、固定接触部３１３と可動接触部５１３との間に挿入され、固定接触部３１３と可動接触部５１３との間に発生するアークを引き延ばす。図５に示すように、突出部材８２が固定接触部３１３と可動接触部５１３との間に挿入されることにより、固定接触部３１３と可動接触部５１３との間の隙間の大きさは、最大で突出部材８２の厚さと同じ大きさとなる。 隙間 With the movement of the operation pin 8, a gap is formed between the fixed contact portion 313 and the movable contact portion 513 so that the projecting member 82 can be inserted. The protruding member 82 is inserted between the fixed contact part 313 and the movable contact part 513, and extends the arc generated between the fixed contact part 313 and the movable contact part 513. As shown in FIG. 5, when the projecting member 82 is inserted between the fixed contact portion 313 and the movable contact portion 513, the size of the gap between the fixed contact portion 313 and the movable contact portion 513 is maximized. Thus, the thickness becomes the same as the thickness of the protruding member 82.
　動作ピン８がガス発生器７により駆動される前は、固定接触部３１３は、第１の開口部４１０において第１のマスク４の外へ露出している。動作ピン８がガス発生器７により駆動され、固定接触部３１３と可動接触部５１３との間に挿入されると、図６に示すように、動作ピン８の突出部材８２の外周面８２２は、固定接触部３１３と可動接触部５１３とのうち少なくとも一方に接する。本実施形態では、外周面８２２のうち、第１の面８２３が固定接触部３１３に接する。また、突出部材８２の外周面８２２のうち第１の面８２３は、第１のマスク４の第１の開口部４１０を覆う。つまり、固定接触部３１３は、動作ピン８がガス発生器７により駆動された後に、突出部材８２により覆われる。 固定 Before the operation pin 8 is driven by the gas generator 7, the fixed contact portion 313 is exposed outside the first mask 4 at the first opening 410. When the operation pin 8 is driven by the gas generator 7 and inserted between the fixed contact portion 313 and the movable contact portion 513, as shown in FIG. 6, the outer peripheral surface 822 of the projecting member 82 of the operation pin 8 It contacts at least one of the fixed contact portion 313 and the movable contact portion 513. In the present embodiment, the first surface 823 of the outer peripheral surface 822 contacts the fixed contact portion 313. The first surface 823 of the outer peripheral surface 822 of the protruding member 82 covers the first opening 410 of the first mask 4. That is, the fixed contact portion 313 is covered by the projecting member 82 after the operation pin 8 is driven by the gas generator 7.
　固定接触部３１３と可動接触部５１３との間に挿入された動作ピン８の突出部材８２の外周面８２２は、第１のマスク４の第１壁部４１（接触壁）と、第２のマスク６の第１壁部６１（接触壁）とに接する。すなわち、外周面８２２のうち第１の面８２３が第１のマスク４の第１壁部４１に接し、第２の面８２４が第２のマスク６の第１壁部６１に接する。 The outer peripheral surface 822 of the protruding member 82 of the operation pin 8 inserted between the fixed contact portion 313 and the movable contact portion 513 includes the first wall portion 41 (contact wall) of the first mask 4 and the second mask 6 and the first wall 61 (contact wall). That is, of the outer peripheral surface 822, the first surface 823 contacts the first wall portion 41 of the first mask 4, and the second surface 824 contacts the first wall portion 61 of the second mask 6.
　第１のマスク４は、第１壁部４１により、固定部材３のうち、固定接触部３１３を基準として動作ピン８の進行方向側の領域Ｒ１を覆っている。つまり、第１壁部４１は、固定部材３の表面の領域のうち、固定接触部３１３よりも図６の紙面下側の領域Ｒ１に設けられた部位を少なくとも含む。 The first mask 4 covers the region R <b> 1 of the fixed member 3 in the traveling direction of the operation pin 8 with respect to the fixed contact portion 313 by the first wall portion 41. That is, the first wall portion 41 includes at least a portion provided in a region R1 below the fixed contact portion 313 in FIG.
　第２のマスク６は、第１壁部６１により、可動部材５のうち、可動接触部５１３を基準として動作ピン８の進行方向側の領域Ｒ２を覆っている。つまり、第１壁部６１は、可動部材５の表面の領域のうち、可動接触部５１３よりも図６の紙面下側の領域Ｒ２に設けられた部位を少なくとも含む。 {Circle around (2)} The second mask 6 covers the region R2 of the movable member 5 on the traveling direction side of the operation pin 8 with respect to the movable contact portion 513 by the first wall portion 61. That is, the first wall portion 61 includes at least a portion provided in a region R2 below the movable contact portion 513 in FIG.
　収容部９の第２ボディ９５は、当接部９８を含む。当接部９８は、柱状部９６の内面から突出している。当接部９８は、固定接触部３１３と可動接触部５１３との間に挿入された動作ピン８のうち、動作ピン８の進行方向における先端（突出部材８２の先端）に接する。当接部９８と固定接触部３１３との間に、第１のマスク４の第１壁部４１の少なくとも一部が位置する。当接部９８と可動接触部５１３との間に、第２のマスク６の第１壁部６１の少なくとも一部が位置する。 第 The second body 95 of the housing section 9 includes a contact section 98. The contact portion 98 protrudes from the inner surface of the columnar portion 96. The contact portion 98 comes into contact with the distal end (the distal end of the protruding member 82) in the traveling direction of the operation pin 8 among the operation pins 8 inserted between the fixed contact portion 313 and the movable contact portion 513. At least a part of the first wall portion 41 of the first mask 4 is located between the contact portion 98 and the fixed contact portion 313. At least a part of the first wall portion 61 of the second mask 6 is located between the contact portion 98 and the movable contact portion 513.
　図６、７にそれぞれ、固定接触部３１３と可動接触部５１３との間に発生するアークの経路の一例を図示する。図６では、突出部材８２が第１の開口部４１０を覆っており当接部９８に接していない状態におけるアークの経路Ａ１を図示する。図７では、図６の状態から突出部材８２が更に移動し、突出部材８２が当接部９８に接している状態におけるアークの経路Ａ２を図示する。 6 and 7 show examples of the path of an arc generated between the fixed contact portion 313 and the movable contact portion 513, respectively. FIG. 6 illustrates the arc path A1 in a state where the protruding member 82 covers the first opening 410 and is not in contact with the contact part 98. FIG. 7 illustrates an arc path A2 in a state where the protruding member 82 further moves from the state of FIG. 6 and the protruding member 82 is in contact with the contact portion 98.
　固定部材３の表面の領域のうち、第１のマスク４が設けられている領域では、第１の開口部４１０の内側を除いて、アークを構成する粒子の放出が制限される。より詳細には、固定部材３では、第１の開口部４１０の内側の固定接触部３１３において、アークを構成する粒子が放出される一方で、固定接触部３１３以外の部位では、アークを構成する粒子が放出され難い。 Of the surface region of the fixing member 3, in the region where the first mask 4 is provided, the emission of particles constituting the arc is restricted except for the inside of the first opening 410. More specifically, in the fixing member 3, particles forming an arc are emitted from the fixed contact portion 313 inside the first opening 410, while an arc is formed at a portion other than the fixed contact portion 313. Particles are hard to be released.
　同様に、可動部材５の表面の領域のうち、第２のマスク６が設けられている領域では、第２の開口部６１０の内側を除いて、アークを構成する粒子の放出が制限される。より詳細には、可動部材５では、第２の開口部６１０の内側の可動接触部５１３において、アークを構成する粒子が放出される一方で、可動接触部５１３以外の部位では、アークを構成する粒子が放出され難い。 Similarly, in the area of the surface of the movable member 5 where the second mask 6 is provided, the emission of the particles constituting the arc is restricted except for the inside of the second opening 610. More specifically, in the movable member 5, particles forming an arc are emitted from the movable contact portion 513 inside the second opening 610, while an arc is formed in a portion other than the movable contact portion 513. Particles are hard to be released.
　アークを構成する粒子の放出が制限されることにより、アーク抵抗が高まり、アーク電圧が高まるので、遮断装置１の消弧性能が向上する。 放出 Since the emission of the particles constituting the arc is restricted, the arc resistance increases and the arc voltage increases, so that the arc extinguishing performance of the interrupting device 1 improves.
　また、第１のマスク４は、固定部材３の表面の領域のうち、可動部材５に対向する領域の少なくとも一部に設けられているので、アークが固定部材３と可動部材５との対向している方向に沿って形成されることが抑制される。第２のマスク６は、可動部材５の表面の領域のうち、固定部材３に対向する領域の少なくとも一部に設けられているので、アークが固定部材３と可動部材５との対向している方向に沿って形成されることが抑制される。 Further, since the first mask 4 is provided in at least a part of the area facing the movable member 5 in the area on the surface of the fixed member 3, the arc is generated when the fixed member 3 faces the movable member 5. Is prevented from being formed along the same direction. Since the second mask 6 is provided in at least a part of the area facing the fixed member 3 in the area of the surface of the movable member 5, the arc faces the fixed member 3 and the movable member 5. Formation along the direction is suppressed.
　動作ピン８がガス発生器７（図４参照）により駆動され、固定接触部３１３と可動接触部５１３との間に挿入されると、動作ピン８の突出部材８２の外周面８２２は、固定接触部３１３に接する。また、外周面８２２は、第１のマスク４の第１の開口部４１０を覆う。これにより、固定接触部３１３の周囲においてアークを構成する粒子の移動が制限される。例えば、第１のマスク４における第１の開口部４１０の周縁と突出部材８２との間に僅かでも隙間がある場合は、固定接触部３１３の周囲においてアークを構成する粒子が移動可能な範囲は、この隙間に限られる。したがって、アーク電圧が高まるので、遮断装置１の消弧性能が向上する。 When the operation pin 8 is driven by the gas generator 7 (see FIG. 4) and is inserted between the fixed contact portion 313 and the movable contact portion 513, the outer peripheral surface 822 of the protruding member 82 of the operation pin 8 becomes fixed contact. It contacts the part 313. The outer peripheral surface 822 covers the first opening 410 of the first mask 4. This limits the movement of the particles constituting the arc around the fixed contact portion 313. For example, when there is a slight gap between the periphery of the first opening 410 in the first mask 4 and the protruding member 82, the range in which particles constituting the arc can move around the fixed contact portion 313 is as follows. Is limited to this gap. Therefore, the arc voltage is increased, and the arc extinguishing performance of the cutoff device 1 is improved.
　動作ピン８が固定接触部３１３と可動接触部５１３との間に挿入された場合に、外周面８２２は、可動接触部５１３に接してもよいし、可動接触部５１３と固定接触部３１３との両方に接してもよい。すなわち、外周面８２２のうち、第２の面８２４が可動接触部５１３に接してもよい。また、動作ピン８が固定接触部３１３と可動接触部５１３との間に挿入された場合に、外周面８２２のうち第２の面８２４は、第２のマスク６の第２の開口部６１０を覆ってもよい。 When the operation pin 8 is inserted between the fixed contact portion 313 and the movable contact portion 513, the outer peripheral surface 822 may be in contact with the movable contact portion 513, or the outer peripheral surface 822 may be in contact with the movable contact portion 513 and the fixed contact portion 313. You may touch both. That is, the second surface 824 of the outer peripheral surface 822 may be in contact with the movable contact portion 513. Further, when the operation pin 8 is inserted between the fixed contact portion 313 and the movable contact portion 513, the second surface 824 of the outer peripheral surface 822 is connected to the second opening 610 of the second mask 6. May be covered.
　また、動作ピン８がガス発生器７により駆動されると、動作ピン８の突出部材８２の外周面８２２は、第１のマスク４の第１壁部４１（接触壁）と、第２のマスク６の第１壁部６１（接触壁）とに接する。これにより、突出部材８２の外周面８２２と第１壁部４１、６１との間では、アークが分布可能な範囲が制限される。例えば、第１のマスク４の第１壁部４１と突出部材８２との間に僅かでも隙間がある場合は、固定接触部３１３の周囲においてアークを構成する粒子が移動可能な範囲は、この隙間に限られる。第２のマスク６の第１壁部６１と突出部材８２との間に僅かでも隙間がある場合は、可動接触部５１３の周囲においてアークを構成する粒子が移動可能な範囲は、この隙間に限られる。したがって、アーク電圧が高まるので、遮断装置１の消弧性能が向上する。 When the operation pin 8 is driven by the gas generator 7, the outer peripheral surface 822 of the protruding member 82 of the operation pin 8 forms the first wall portion 41 (contact wall) of the first mask 4 and the second mask 41. 6 and the first wall 61 (contact wall). This limits the range in which the arc can be distributed between the outer peripheral surface 822 of the protruding member 82 and the first wall portions 41 and 61. For example, if there is a slight gap between the first wall portion 41 of the first mask 4 and the protruding member 82, the range in which particles constituting the arc can move around the fixed contact portion 313 is determined by the gap. Limited to If there is even a slight gap between the first wall portion 61 of the second mask 6 and the projecting member 82, the range in which particles constituting the arc can move around the movable contact portion 513 is limited to this gap. Can be Therefore, the arc voltage is increased, and the arc extinguishing performance of the cutoff device 1 is improved.
　また、図７に示すように、当接部９８は、ガス発生器７により駆動された動作ピン８のうち、動作ピン８の進行方向における先端（突出部材８２の先端）に接する。したがって、固定接触部３１３と可動接触部５１３との間に発生するアークは、動作ピン８の進行方向における先端と当接部９８との間で圧縮される。これにより、アークを構成する粒子の密度が高まり、粒子同士が衝突する頻度が高まって、粒子がスムーズに固定接触部３１３と可動接触部５１３との間を移動することが困難になるので、アーク電圧が高まる。したがって、遮断装置１の消弧性能が向上する。 As shown in FIG. 7, the contact portion 98 comes into contact with the distal end (the distal end of the protruding member 82) of the operating pin 8 driven by the gas generator 7 in the traveling direction of the operating pin 8. Therefore, the arc generated between the fixed contact portion 313 and the movable contact portion 513 is compressed between the tip in the traveling direction of the operation pin 8 and the contact portion 98. This increases the density of the particles constituting the arc, increases the frequency of collision of the particles, and makes it difficult for the particles to smoothly move between the fixed contact portion 313 and the movable contact portion 513. The voltage increases. Therefore, the arc extinguishing performance of the shutoff device 1 is improved.
　（実施形態１の変形例）
　次に、実施形態１の変形例を列挙する。以下の変形例は、適宜組み合わせて実現されてもよい。 (Modification of First Embodiment)
Next, modifications of the first embodiment will be listed. The following modifications may be implemented in combination as appropriate.
　第１のマスク４は、固定接点３１の一部を覆っていてもよいし、固定接点３１の一部と固定片３２の少なくとも一部とを覆っていてもよい。第２のマスク６は、可動接点５１の一部を覆っていてもよいし、可動接点５１の一部と可動片５２の少なくとも一部とを覆っていてもよい。 The first mask 4 may cover a part of the fixed contact 31, or may cover a part of the fixed contact 31 and at least a part of the fixed piece 32. The second mask 6 may cover a part of the movable contact 51, or may cover a part of the movable contact 51 and at least a part of the movable piece 52.
　また、第１のマスク４及び第２のマスク６の形状は、実施形態１に示した形状に限定されない。第１のマスク４は、例えば、固定接触部３１３を囲むＵ字状に形成されていてもよい。第２のマスク６は、例えば、可動接触部５１３を囲むＵ字状に形成されていてもよい。 The shapes of the first mask 4 and the second mask 6 are not limited to the shapes described in the first embodiment. The first mask 4 may be formed, for example, in a U shape surrounding the fixed contact portion 313. The second mask 6 may be formed in, for example, a U shape surrounding the movable contact portion 513.
　また、第１の開口部４１０は、固定接点３１の頭部３１１よりも大きくてもよいし、頭部３１１よりも小さくてもよい。第２の開口部６１０は、可動接点５１の頭部５１１よりも大きくてもよいし、頭部５１１よりも小さくてもよい。 The first opening 410 may be larger than the head 311 of the fixed contact 31 or may be smaller than the head 311. The second opening 610 may be larger than the head 511 of the movable contact 51, or may be smaller than the head 511.
　また、動作ピン８を駆動するための駆動部は、ガス発生器７に限定されない。駆動部は、例えば、電磁気力により動作ピン８を駆動する構成であってもよい。 駆 動 Further, the driving unit for driving the operation pin 8 is not limited to the gas generator 7. The drive unit may be configured to drive the operation pin 8 by an electromagnetic force, for example.
　（実施形態１及び実施形態１の変形例のまとめ）
　以上説明した実施形態１及び実施形態１の変形例から、以下の態様が開示されている。 (Summary of Embodiment 1 and Modifications of Embodiment 1)
The following aspects are disclosed from the first embodiment described above and the modifications of the first embodiment.
　接点装置２は、導電性の固定部材３と、導電性の可動部材５と、を備える。接点装置２は、電気絶縁性の第１のマスク４と、電気絶縁性の第２のマスク６と、のうち少なくとも一方を備える。固定部材３は、固定接点３１を有する。可動部材５は、可動接点５１を有する。可動接点５１は、固定接点３１に接した状態と固定接点３１から離れた状態とのうちいずれかの状態を取る。可動部材５は、固定部材３とは別体に形成される。第１のマスク４は、固定部材３の表面の領域のうち、固定接触部３１３を囲み可動部材５に対向する領域の少なくとも一部に設けられる。固定接触部３１３は、固定接点３１における可動接点５１との接触部分である。第２のマスク６は、可動部材５の表面の領域のうち、可動接触部５１３を囲み固定部材３に対向する領域の少なくとも一部に設けられる。可動接触部５１３は、可動接点５１における固定接点３１との接触部分である。 The contact device 2 includes a conductive fixed member 3 and a conductive movable member 5. The contact device 2 includes at least one of an electrically insulating first mask 4 and an electrically insulating second mask 6. The fixed member 3 has a fixed contact 31. The movable member 5 has a movable contact 51. The movable contact 51 takes one of a state of being in contact with the fixed contact 31 and a state of being separated from the fixed contact 31. The movable member 5 is formed separately from the fixed member 3. The first mask 4 is provided in at least a part of a region surrounding the fixed contact portion 313 and facing the movable member 5 in a region on the surface of the fixed member 3. The fixed contact portion 313 is a contact portion of the fixed contact 31 with the movable contact 51. The second mask 6 is provided in at least a part of a region surrounding the movable contact portion 513 and facing the fixed member 3 in a region on the surface of the movable member 5. The movable contact portion 513 is a contact portion of the movable contact 51 with the fixed contact 31.
　上記の構成によれば、固定部材３及び可動部材５の少なくとも一方において、電気絶縁性の第１のマスク４又は第２のマスク６が設けられている部位では、アークを構成する粒子の放出が制限される。これにより、アーク抵抗が高まり、アーク電圧が高まるので、接点装置２の消弧性能が向上する。 According to the above configuration, at least one of the fixed member 3 and the movable member 5 is provided with the electrically insulating first mask 4 or the second mask 6, and discharge of particles constituting the arc is prevented. Limited. Thereby, the arc resistance increases and the arc voltage increases, so that the arc extinguishing performance of the contact device 2 improves.
　また、接点装置２では、第１のマスク４は、第１の開口部４１０を有する。第１のマスク４は、第１の開口部４１０の内縁において固定接触部３１３を囲む。第２のマスク６は、第２の開口部６１０を有する。第２のマスク６は、第２の開口部６１０の内縁において可動接触部５１３を囲む。 In the contact device 2, the first mask 4 has the first opening 410. The first mask 4 surrounds the fixed contact portion 313 at the inner edge of the first opening 410. The second mask 6 has a second opening 610. The second mask 6 surrounds the movable contact portion 513 at the inner edge of the second opening 610.
　上記の構成によれば、第１のマスク４と第２のマスク６とのうち少なくとも一方により、アークを構成する粒子の放出が更に制限される。これにより、接点装置２の消弧性能が更に向上する。 According to the above configuration, the emission of the particles constituting the arc is further restricted by at least one of the first mask 4 and the second mask 6. Thereby, the arc extinguishing performance of the contact device 2 is further improved.
　また、接点装置２では、第１のマスク４と第２のマスク６との両方を備える。 (4) The contact device 2 includes both the first mask 4 and the second mask 6.
　上記の構成によれば、接点装置２が第１のマスク４と第２のマスク６とのうち一方のみを備える場合と比較して、接点装置２の消弧性能が更に向上する。 According to the above configuration, the arc extinguishing performance of the contact device 2 is further improved as compared with the case where the contact device 2 includes only one of the first mask 4 and the second mask 6.
　また、遮断装置１は、接点装置２と、動作ピン８と、駆動部（ガス発生器７）と、を備える。駆動部は、動作ピン８を駆動し動作ピン８を固定接触部３１３と可動接触部５１３との間に挿入する。 遮断 Moreover, the breaking device 1 is provided with the contact device 2, the operation pin 8, and the drive part (gas generator 7). The drive unit drives the operation pin 8 and inserts the operation pin 8 between the fixed contact unit 313 and the movable contact unit 513.
　上記の構成によれば、電気絶縁性の動作ピン８が固定接触部３１３と可動接触部５１３との間に挿入されることで、固定接触部３１３と可動接触部５１３との間のアークが引き延ばされるので、遮断装置１の消弧性能が向上する。 According to the above configuration, by inserting the electrically insulating operation pin 8 between the fixed contact portion 313 and the movable contact portion 513, the arc between the fixed contact portion 313 and the movable contact portion 513 is drawn. Since it is extended, the arc extinguishing performance of the shutoff device 1 is improved.
　また、遮断装置１では、第１のマスク４は、第１の開口部４１０を有する。第１の開口部４１０は、固定接触部３１３と可動接触部５１３との間に挿入された動作ピン８により覆われる。第１のマスク４は、第１の開口部４１０の内縁において固定接触部３１３を囲む。第２のマスク６は、第２の開口部６１０を有する。第２の開口部６１０は、固定接触部３１３と可動接触部５１３との間に挿入された動作ピン８により覆われる。第２のマスク６は、第２の開口部６１０の内縁において可動接触部５１３を囲む。 {Circle around (1)} In the blocking device 1, the first mask 4 has the first opening 410. The first opening 410 is covered by the operating pin 8 inserted between the fixed contact part 313 and the movable contact part 513. The first mask 4 surrounds the fixed contact portion 313 at the inner edge of the first opening 410. The second mask 6 has a second opening 610. The second opening 610 is covered by the operating pin 8 inserted between the fixed contact part 313 and the movable contact part 513. The second mask 6 surrounds the movable contact portion 513 at the inner edge of the second opening 610.
　上記の構成によれば、第１の開口部４１０を動作ピン８により覆うことで、固定接触部３１３の周囲においてアークを構成する粒子の移動が制限されるので、アーク電圧が高まる。したがって、遮断装置１の消弧性能が更に向上する。また、第２の開口部６１０を動作ピン８により覆うことで、可動接触部５１３の周囲においてアークを構成する粒子の移動が制限されるので、アーク電圧が高まる。したがって、遮断装置１の消弧性能が更に向上する。 According to the above configuration, since the first opening 410 is covered with the operation pin 8, the movement of the particles constituting the arc around the fixed contact portion 313 is restricted, so that the arc voltage is increased. Therefore, the arc extinguishing performance of the shutoff device 1 is further improved. In addition, by covering the second opening 610 with the operation pin 8, the movement of particles constituting the arc around the movable contact portion 513 is restricted, so that the arc voltage increases. Therefore, the arc extinguishing performance of the shutoff device 1 is further improved.
　また、遮断装置１では、固定接触部３１３と可動接触部５１３との間に挿入された動作ピン８の外周面８２２は、固定接触部３１３と可動接触部５１３とのうち少なくとも一方に接する。 In the blocking device 1, the outer peripheral surface 822 of the operation pin 8 inserted between the fixed contact portion 313 and the movable contact portion 513 contacts at least one of the fixed contact portion 313 and the movable contact portion 513.
　上記の構成によれば、固定接触部３１３と可動接触部５１３とのうち少なくとも一方と動作ピン８の外周面８２２との間では、アークを構成する粒子の移動が制限されるので、アーク電圧が高まる。したがって、遮断装置１の消弧性能が更に向上する。 According to the above configuration, the movement of particles constituting the arc is restricted between at least one of the fixed contact portion 313 and the movable contact portion 513 and the outer peripheral surface 822 of the operation pin 8, so that the arc voltage is reduced. Increase. Therefore, the arc extinguishing performance of the shutoff device 1 is further improved.
　また、遮断装置１は、第２のマスク６を備える。動作ピン８は、進行方向における先端に傾斜面８２１を含む。動作ピン８は、駆動部（ガス発生器７）に駆動されることにより、傾斜面８２１において第２のマスク６を押しながら、第２のマスク６と固定部材３との間に挿入される。 遮断 Moreover, the blocking device 1 includes the second mask 6. The operation pin 8 includes an inclined surface 821 at the tip in the traveling direction. The operation pin 8 is inserted between the second mask 6 and the fixing member 3 while pressing the second mask 6 on the inclined surface 821 by being driven by the driving unit (gas generator 7).
　上記の構成によれば、動作ピン８が傾斜面８２１において第２のマスク６を押し、第２のマスク６を介して可動部材５を押すことで、固定接触部３１３に接した状態の可動接触部５１３を、固定接触部３１３から離れた状態にすることができる、又は可動接触部５１３と固定接触部３１３との接触領域を小さくすることができる。したがって、突出部材８２が固定接触部３１３と可動接触部５１３との間に挿入される際に、動作ピン８が可動接触部５１３に衝突して破損又は変形する可能性を低減できる。 According to the above configuration, the operating pin 8 pushes the second mask 6 on the inclined surface 821 and pushes the movable member 5 via the second mask 6, thereby moving the movable contact 5 in contact with the fixed contact portion 313. The portion 513 can be separated from the fixed contact portion 313, or the contact area between the movable contact portion 513 and the fixed contact portion 313 can be reduced. Therefore, when the projecting member 82 is inserted between the fixed contact portion 313 and the movable contact portion 513, the possibility that the operation pin 8 collides with the movable contact portion 513 and is damaged or deformed can be reduced.
　また、遮断装置１は、接触壁（第１壁部４１及び第１壁部６１）を更に備える。接触壁は、固定接触部３１３と可動接触部５１３との間に挿入された動作ピン８の外周面８２２に接する。 遮断 The blocking device 1 further includes a contact wall (the first wall portion 41 and the first wall portion 61). The contact wall is in contact with the outer peripheral surface 822 of the operation pin 8 inserted between the fixed contact portion 313 and the movable contact portion 513.
　上記の構成によれば、動作ピン８の外周面８２２と接触壁（第１壁部４１及び第１壁部６１）との間では、アークを構成する粒子の移動が制限されるので、アーク電圧が高まる。したがって、遮断装置１の消弧性能が更に向上する。 According to the above configuration, the movement of the particles constituting the arc is restricted between the outer peripheral surface 822 of the operation pin 8 and the contact wall (the first wall portion 41 and the first wall portion 61). Increase. Therefore, the arc extinguishing performance of the shutoff device 1 is further improved.
　また、遮断装置１では、駆動部は、ガス発生器７を有する。ガス発生器７は、燃料７４を燃焼させることによりガスを発生する。動作ピン８は、ガス発生器７で発生したガスの圧力により駆動される。 駆 動 In the shutoff device 1, the driving unit has the gas generator 7. The gas generator 7 generates gas by burning the fuel 74. The operation pin 8 is driven by the pressure of the gas generated by the gas generator 7.
　上記の構成によれば、動作ピン８がガスの圧力により駆動されるので、動作ピン８の移動速度を向上できる。 According to the above configuration, since the operation pin 8 is driven by the pressure of the gas, the moving speed of the operation pin 8 can be improved.
　また、遮断装置１では、第１のマスク４は、固定部材３のうち、固定接触部３１３を基準として動作ピン８の進行方向側の領域Ｒ１を覆う。第２のマスク６は、可動部材５のうち、可動接触部５１３を基準として動作ピン８の進行方向側の領域Ｒ２を覆う。 {Circle around (1)} In the blocking device 1, the first mask 4 covers the region R1 of the fixed member 3 on the traveling direction side of the operation pin 8 with reference to the fixed contact portion 313. The second mask 6 covers a region R2 of the movable member 5 on the traveling direction side of the operation pin 8 with reference to the movable contact portion 513.
　上記の構成によれば、動作ピン８により動作ピン８の進行方向に引き延ばされたアークを構成する粒子の移動が、第１のマスク４及び第２のマスク６の少なくとも一方により制限され、アーク電圧が高まる。したがって、遮断装置１の消弧性能が更に向上する。 According to the above configuration, the movement of the particles constituting the arc elongated in the traveling direction of the operation pin 8 by the operation pin 8 is restricted by at least one of the first mask 4 and the second mask 6, Arc voltage increases. Therefore, the arc extinguishing performance of the shutoff device 1 is further improved.
　また、遮断装置１は、当接部９８を更に備える。当接部９８は、固定接触部３１３と可動接触部５１３との間に挿入された動作ピン８のうち動作ピン８の進行方向における先端に接する。 遮断 The blocking device 1 further includes a contact portion 98. The contact portion 98 comes into contact with a tip of the operation pin 8 inserted between the fixed contact portion 313 and the movable contact portion 513 in the traveling direction of the operation pin 8.
　上記の構成によれば、動作ピン８の進行方向における先端と当接部９８との間でアークが圧縮される。これにより、アークを構成する粒子の衝突頻度が高まるので、アーク電圧が高まる。したがって、遮断装置１の消弧性能が更に向上する。 According to the above configuration, the arc is compressed between the tip of the operation pin 8 in the traveling direction and the contact portion 98. As a result, the frequency of collision of particles constituting the arc increases, so that the arc voltage increases. Therefore, the arc extinguishing performance of the shutoff device 1 is further improved.
　（実施形態２）
　以下、実施形態２に係る接点装置２Ａ及び遮断装置１Ａについて、図８～１０を用いて説明する。実施形態１と同様の構成については、同一の符号を付して説明を省略する。 (Embodiment 2)
Hereinafter, a contact device 2A and a breaking device 1A according to the second embodiment will be described with reference to FIGS. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
　接点装置２Ａにおいて、固定部材３Ａは、第１の突出部３４を更に有している。第１の突出部３４は、固定片３２Ａから突出している。第１の突出部３４は、固定片３２Ａとは別体に形成されている。第１の突出部３４は、例えば、タングステンにより形成されている。本実施形態の第１の突出部３４の形状は、固定片３２Ａに設けられた固定接点３１と同じ形状である。すなわち、第１の突出部３４はリベット状であって、円盤状の頭部３４１と、頭部３４１から突出した軸部３４２と、を含む。第１の突出部３４は、固定片３２Ａにかしめにより取り付けられている。 In the contact device 2A, the fixing member 3A further has a first protrusion 34. The first protrusion 34 protrudes from the fixing piece 32A. The first protrusion 34 is formed separately from the fixing piece 32A. The first protrusion 34 is formed of, for example, tungsten. The shape of the first projection 34 of the present embodiment is the same as the shape of the fixed contact 31 provided on the fixed piece 32A. That is, the first protrusion 34 has a rivet shape and includes a disk-shaped head 341 and a shaft 342 protruding from the head 341. The first protrusion 34 is attached to the fixing piece 32A by caulking.
　第１の突出部３４は、固定接点３１に対して、動作ピン８の進行方向において離れて位置している。より詳細には、動作ピン８がガス発生器７（図４参照）に駆動されていない場合に、図９に示すように、第１の突出部３４よりも固定接点３１の方が、動作ピン８の先端に近い。 The first protrusion 34 is located away from the fixed contact 31 in the direction in which the operation pin 8 moves. More specifically, when the operating pin 8 is not driven by the gas generator 7 (see FIG. 4), as shown in FIG. Near the tip of 8.
　第１のマスク４Ａは、第１の開口部４１１と、第３の開口部４１２と、を有している。第１の開口部４１１は、実施形態１の第１の開口部４１０（図３参照）に相当し、第１のマスク４Ａは、第１の開口部４１１の内縁において固定接触部３１３を囲んでいる。第３の開口部４１２の大きさは、第１の突出部３４の頭部３４１と同程度である。第１のマスク４Ａは、第３の開口部４１２の内縁において第１の突出部３４の頭部３４１を囲んでいる。 The first mask 4A has a first opening 411 and a third opening 412. The first opening 411 corresponds to the first opening 410 of Embodiment 1 (see FIG. 3), and the first mask 4A surrounds the fixed contact portion 313 at the inner edge of the first opening 411. I have. The size of the third opening 412 is substantially the same as the head 341 of the first protrusion 34. The first mask 4 </ b> A surrounds the head 341 of the first protrusion 34 at the inner edge of the third opening 412.
　接点装置２Ａにおいて、可動部材５Ａは、第２の突出部５４を更に有している。第２の突出部５４は、可動片５２Ａから突出している。第２の突出部５４は、可動片５２Ａとは別体に形成されている。第２の突出部５４は、例えば、タングステンにより形成されている。本実施形態の第２の突出部５４の形状は、可動片５２Ａに設けられた可動接点５１と同じ形状である。すなわち、第２の突出部５４はリベット状であって、円盤状の頭部５４１と、頭部５４１から突出した軸部５４２と、を含む。第２の突出部５４は、可動片５２Ａにかしめにより取り付けられている。 In the contact device 2A, the movable member 5A further has a second protrusion 54. The second protrusion 54 protrudes from the movable piece 52A. The second protruding portion 54 is formed separately from the movable piece 52A. The second protrusion 54 is formed, for example, of tungsten. The shape of the second protrusion 54 of the present embodiment is the same as the shape of the movable contact 51 provided on the movable piece 52A. That is, the second protrusion 54 is rivet-shaped and includes a disk-shaped head 541 and a shaft 542 protruding from the head 541. The second protrusion 54 is attached to the movable piece 52A by caulking.
　第２の突出部５４は、可動接点５１に対して、動作ピン８の進行方向において離れて位置している。より詳細には、動作ピン８がガス発生器７（図４参照）に駆動されていない場合に、図９に示すように、第２の突出部５４よりも可動接点５１の方が、動作ピン８の先端に近い。 The second protrusion 54 is located away from the movable contact 51 in the direction of movement of the operation pin 8. More specifically, when the operation pin 8 is not driven by the gas generator 7 (see FIG. 4), as shown in FIG. Near the tip of 8.
　第２のマスク６Ａは、第２の開口部６１１と、第４の開口部６１２と、を有している。第２の開口部６１１は、実施形態１の第２の開口部６１０（図３参照）に相当し、第２のマスク６Ａは、第２の開口部６１１の内縁において可動接触部５１３（図１０参照）を囲んでいる。第４の開口部６１２の大きさは、第２の突出部５４の頭部５４１と同程度である。第２のマスク６Ａは、第４の開口部６１２の内縁において第２の突出部５４の頭部５４１を囲んでいる。 The second mask 6A has a second opening 611 and a fourth opening 612. The second opening 611 corresponds to the second opening 610 (see FIG. 3) of the first embodiment, and the second mask 6A has a movable contact portion 513 (FIG. 10) at the inner edge of the second opening 611. See). The size of the fourth opening 612 is substantially the same as the head 541 of the second protrusion 54. The second mask 6A surrounds the head 541 of the second protrusion 54 at the inner edge of the fourth opening 612.
　第２の突出部５４は、第１の突出部３４に対向する。図９に示すように、動作ピン８がガス発生器７（図４参照）に駆動されていない場合に、第２の突出部５４は、第１の突出部３４に接している。したがって、電流は、固定接点３１と可動接点５１との間に流れるだけではなく、第１の突出部３４と第２の突出部５４との間にも流れる。 ２The second protrusion 54 faces the first protrusion 34. As shown in FIG. 9, when the operating pin 8 is not driven by the gas generator 7 (see FIG. 4), the second protrusion 54 contacts the first protrusion 34. Therefore, the current flows not only between the fixed contact 31 and the movable contact 51 but also between the first protrusion 34 and the second protrusion 54.
　ガス発生器７（図４参照）は、動作ピン８を駆動し、図１０に示すように、動作ピン８を固定接触部３１３と可動接触部５１３との間に挿入する。動作ピン８が第１の開口部４１１を覆うと、固定接点３１及び可動接点５１の間で発生したアークの両側の端点Ｔ１、Ｔ２が、第１の突出部３４及び第２の突出部５４へと移動することがある。その後、ガス発生器７で発生したガスの圧力により動作ピン８が更に移動し、動作ピン８は第１の突出部３４及び第２の突出部５４の間に挿入される。より詳細には、動作ピン８は、固定接触部３１３と可動接触部５１３との間に移動してから、動作ピン８の運動の慣性により、第１の突出部３４及び第２の突出部５４の間に到達する。すなわち、ガス発生器７は、動作ピン８を駆動し動作ピン８を固定接触部３１３と可動接触部５１３との間を経由させて第１の突出部３４と第２の突出部５４との間に挿入する。動作ピン８の突出部材８２は、第１のマスク４Ａの第３の開口部４１２を覆う。 The gas generator 7 (see FIG. 4) drives the operation pin 8 and inserts the operation pin 8 between the fixed contact portion 313 and the movable contact portion 513 as shown in FIG. When the operation pin 8 covers the first opening 411, both end points T1 and T2 of the arc generated between the fixed contact 31 and the movable contact 51 are transferred to the first protrusion 34 and the second protrusion 54. May move. Thereafter, the operation pin 8 is further moved by the pressure of the gas generated by the gas generator 7, and the operation pin 8 is inserted between the first protrusion 34 and the second protrusion 54. More specifically, after the operation pin 8 moves between the fixed contact portion 313 and the movable contact portion 513, the first protrusion 34 and the second protrusion 54 are moved by the inertia of the movement of the operation pin 8. Reach between. That is, the gas generator 7 drives the operation pin 8 and causes the operation pin 8 to pass between the fixed contact portion 313 and the movable contact portion 513 to cause the operation pin 8 to move between the first protrusion 34 and the second protrusion 54. Insert The projecting member 82 of the operation pin 8 covers the third opening 412 of the first mask 4A.
　第１の突出部３４及び第２の突出部５４を構成する材料はタングステンである一方で、固定接点３１及び可動接点５１を構成する材料は銅及び銀等である。そのため、第１の突出部３４及び第２の突出部５４の融点は、固定接点３１及び可動接点５１の融点よりも高い。そのため、第１の突出部３４及び第２の突出部５４では、固定接点３１及び可動接点５１よりも金属蒸気が発生しにくい。よって、第１の突出部３４及び第２の突出部５４の間で発生したアークは、固定接点３１及び可動接点５１の間で発生したアークよりも消弧されやすい。 材料 While the material forming the first protrusion 34 and the second protrusion 54 is tungsten, the material forming the fixed contact 31 and the movable contact 51 is copper and silver. Therefore, the melting points of the first protrusion 34 and the second protrusion 54 are higher than the melting points of the fixed contact 31 and the movable contact 51. Therefore, metal vapor is less likely to be generated at the first protrusion 34 and the second protrusion 54 than at the fixed contact 31 and the movable contact 51. Therefore, the arc generated between the first protrusion 34 and the second protrusion 54 is more easily extinguished than the arc generated between the fixed contact 31 and the movable contact 51.
　また、動作ピン８がガス発生器７に駆動されていない状態では、第１の突出部３４と第２の突出部５４との間に電流が流れ、固定接点３１と可動接点５１との間にも電流が流れる。固定接点３１及び可動接点５１の導電率は、第１の突出部３４及び第２の突出部５４の導電率よりも高い。そのため、接点装置２Ａがタングステンを材料として形成された固定接点３１及び可動接点５１を有しており、固定接点及び可動接点として設けられた部材が固定接点３１及び可動接点５１のみの場合と比較して、接点装置２Ａにおける通電性能が高い。 In a state where the operation pin 8 is not driven by the gas generator 7, a current flows between the first protrusion 34 and the second protrusion 54, and a current flows between the fixed contact 31 and the movable contact 51. Current also flows. The conductivity of the fixed contact 31 and the movable contact 51 is higher than the conductivity of the first protrusion 34 and the second protrusion 54. Therefore, the contact device 2A has the fixed contact 31 and the movable contact 51 formed of tungsten as a material, and the members provided as the fixed contact and the movable contact are compared with the case where only the fixed contact 31 and the movable contact 51 are provided. Therefore, the current-carrying performance of the contact device 2A is high.
　したがって、本実施形態の遮断装置１Ａでは、実施形態１の遮断装置１と比較して、通電性能を維持しつつ、消弧性能を向上させることができる。 Therefore, in the shut-off device 1A of the present embodiment, the arc extinguishing performance can be improved while maintaining the energizing performance, as compared with the shut-off device 1 of the first embodiment.
　本実施形態において、第１の突出部３４と第２の突出部５４とは、互いに接しなくてもよい。つまり、第１の突出部３４と第２の突出部５４とは、電路の一部でなくてもよい。 In the present embodiment, the first protrusion 34 and the second protrusion 54 need not be in contact with each other. That is, the first protrusion 34 and the second protrusion 54 need not be a part of the electric circuit.
　また、第３の開口部４１２は、第１の突出部３４の頭部３４１よりも大きくてもよいし、頭部３４１よりも小さくてもよい。第４の開口部６１２は、第２の突出部５４の頭部５４１よりも大きくてもよいし、頭部５４１よりも小さくてもよい。 The third opening 412 may be larger than the head 341 of the first protrusion 34 or smaller than the head 341. The fourth opening 612 may be larger than the head 541 of the second protrusion 54 or smaller than the head 541.
　また、ガス発生器７に駆動された動作ピン８の突出部材８２は、第２のマスク６Ａの第４の開口部６１２を覆ってもよい。 (4) The projecting member 82 of the operation pin 8 driven by the gas generator 7 may cover the fourth opening 612 of the second mask 6A.
　第１の突出部３４に対しては、本開示の各実施形態及び各変形例の固定接点３１に関する態様を適宜適用可能である。また、第２の突出部５４に対しては、本開示の各実施形態及び各変形例の可動接点５１に関する態様を適宜適用可能である。 態 様 As for the first protruding portion 34, the aspects related to the fixed contact 31 of each embodiment and each modified example of the present disclosure can be appropriately applied. Further, to the second protruding portion 54, the mode relating to the movable contact 51 of each embodiment and each modified example of the present disclosure can be appropriately applied.
　（実施形態２のまとめ）
　以上説明した実施形態２から、以下の態様が開示されている。 (Summary of Embodiment 2)
From the second embodiment described above, the following aspects are disclosed.
　遮断装置１Ａでは、固定部材３Ａは、固定片３２Ａと、第１の突出部３４と、を有する。固定片３２Ａには、固定接点３１が設けられる。第１の突出部３４は、固定片３２Ａから突出している。可動部材５Ａは、可動片５２Ａと、第２の突出部５４と、を有する。可動片５２Ａには、可動接点５１が設けられる。第２の突出部５４は、可動片５２Ａから突出しており第１の突出部３４に対向する。第１の突出部３４及び第２の突出部５４は、固定接点３１及び可動接点５１に対して、動作ピン８の進行方向において離れて位置している。駆動部（ガス発生器７）は、動作ピン８を駆動し動作ピン８を固定接触部３１３と可動接触部５１３との間を経由させて第１の突出部３４と第２の突出部５４との間に挿入する。 In the blocking device 1A, the fixing member 3A has a fixing piece 32A and a first protrusion 34. A fixed contact 31 is provided on the fixed piece 32A. The first protrusion 34 protrudes from the fixing piece 32A. The movable member 5A has a movable piece 52A and a second protrusion 54. A movable contact 51 is provided on the movable piece 52A. The second protruding portion 54 protrudes from the movable piece 52A and faces the first protruding portion 34. The first projecting portion 34 and the second projecting portion 54 are located apart from the fixed contact 31 and the movable contact 51 in the traveling direction of the operation pin 8. The drive section (gas generator 7) drives the operation pin 8 and causes the operation pin 8 to pass between the fixed contact section 313 and the movable contact section 513, thereby causing the first protrusion 34 and the second protrusion 54 to Insert between
　上記の構成によれば、動作ピン８が固定接触部３１３と可動接触部５１３との間に挿入されると、固定接触部３１３と可動接触部５１３との間に発生したアークの端点が、第１の突出部３４と第２の突出部５４とに移動することがある。この場合、アークの遮断は、第１の突出部３４と第２の突出部５４との間においてなされる。したがって、固定接点３１及び可動接点５１の材料として消弧に有利な材料を用いなくても、遮断装置１Ａの消弧性能が低下することを抑制できる。例えば、固定接点３１及び可動接点５１の材料を、消弧性能の高さよりも導電率の高さを優先して選定しても、遮断装置１Ａの消弧性能が低下することを抑制できる。 According to the configuration described above, when the operation pin 8 is inserted between the fixed contact portion 313 and the movable contact portion 513, the end point of the arc generated between the fixed contact portion 313 and the movable contact portion 513 becomes It may move to the first protrusion 34 and the second protrusion 54. In this case, the arc is interrupted between the first projection 34 and the second projection 54. Therefore, it is possible to suppress a decrease in arc extinguishing performance of the interrupting device 1A without using a material that is advantageous for arc extinguishing as the material of the fixed contact 31 and the movable contact 51. For example, even if the material of the fixed contact 31 and the movable contact 51 is selected by giving priority to the conductivity to the arc extinguishing performance, the arc extinguishing performance of the shutoff device 1A can be prevented from being reduced.
　（実施形態３）
　以下、実施形態３に係る接点装置２Ｂ及び遮断装置１Ｂについて、図１１を用いて説明する。実施形態１と同様の構成については、同一の符号を付して説明を省略する。 (Embodiment 3)
Hereinafter, a contact device 2B and a breaking device 1B according to the third embodiment will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
　遮断装置１Ｂの動作ピン８Ｂにおいて、突出部材８２Ｂには、複数の第１の窪み８２５（溝）と、複数の第２の窪み８２６（溝）とが形成されている。複数の第１の窪み８２５は、突出部材８２Ｂのうち第１のマスク４Ｂと対向する面である第１の面８２３Ｂに形成されている。第１の面８２３Ｂは、第１の窪み８２５により凹凸形状となっている。複数の第１の窪み８２５は、動作ピン８Ｂの進行方向に並んでいる。複数の第２の窪み８２６は、突出部材８２Ｂのうち第２のマスク６Ｂと対向する面である第２の面８２４Ｂに形成されている。第２の面８２４Ｂは、第２の窪み８２６により凹凸形状となっている。複数の第２の窪み８２６は、動作ピン８Ｂの進行方向に並んでいる。 動作 In the operation pin 8B of the blocking device 1B, a plurality of first recesses 825 (grooves) and a plurality of second recesses 826 (grooves) are formed in the protruding member 82B. The plurality of first depressions 825 are formed on a first surface 823B of the protruding member 82B that faces the first mask 4B. The first surface 823B has an uneven shape due to the first depression 825. The plurality of first depressions 825 are arranged in the traveling direction of the operation pin 8B. The plurality of second depressions 826 are formed on a second surface 824B of the protruding member 82B that faces the second mask 6B. The second surface 824B has an uneven shape due to the second depression 826. The plurality of second depressions 826 are arranged in the traveling direction of the operation pin 8B.
　第１のマスク４Ｂには、複数の第３の窪み４０３（溝）が形成されている。複数の第３の窪み４０３は、第１のマスク４Ｂのうち、動作ピン８Ｂの突出部材８２Ｂの第１の面８２３Ｂと対向する面４０４に形成されている。面４０４は、第１のマスク４Ｂの第１壁部４１Ｂに含まれる。面４０４は、第３の窪み４０３により凹凸形状となっている。複数の第３の窪み４０３は、動作ピン８Ｂの進行方向に並んでいる。複数の第３の窪み４０３は、第１のマスク４Ｂのうち、固定接触部３１３を基準として動作ピン８Ｂの進行方向側の領域に形成されている。複数の第３の窪み４０３は、当接部９８Ｂと固定接触部３１３との間に位置する。 複数 A plurality of third recesses 403 (grooves) are formed in the first mask 4B. The plurality of third depressions 403 are formed on a surface 404 of the first mask 4B that faces the first surface 823B of the protruding member 82B of the operation pin 8B. The surface 404 is included in the first wall portion 41B of the first mask 4B. The surface 404 has an uneven shape due to the third recess 403. The plurality of third recesses 403 are arranged in the traveling direction of the operation pin 8B. The plurality of third recesses 403 are formed in a region of the first mask 4B on the moving direction side of the operation pin 8B with respect to the fixed contact portion 313. The plurality of third recesses 403 are located between the contact portion 98B and the fixed contact portion 313.
　第２のマスク６Ｂには、複数の第４の窪み６０４（溝）が形成されている。複数の第４の窪み６０４は、第２のマスク６Ｂのうち、動作ピン８Ｂの突出部材８２Ｂの第２の面８２４Ｂと対向する面６０５に形成されている。面６０５は、第２のマスク６Ｂの第１壁部６１Ｂに含まれる。面６０５は、第４の窪み６０４により凹凸形状となっている。複数の第４の窪み６０４は、動作ピン８Ｂの進行方向に並んでいる。複数の第４の窪み６０４は、第２のマスク６Ｂのうち、可動接触部５１３を基準として動作ピン８Ｂの進行方向側の領域に形成されている。複数の第４の窪み６０４は、当接部９８Ｂと可動接触部５１３との間に位置する。 複数 A plurality of fourth recesses 604 (grooves) are formed in the second mask 6B. The plurality of fourth recesses 604 are formed on a surface 605 of the second mask 6B that faces the second surface 824B of the protruding member 82B of the operation pin 8B. The surface 605 is included in the first wall 61B of the second mask 6B. The surface 605 has an uneven shape due to the fourth recess 604. The plurality of fourth recesses 604 are arranged in the traveling direction of the operation pin 8B. The plurality of fourth recesses 604 are formed in a region of the second mask 6B on the moving direction side of the operation pin 8B with respect to the movable contact portion 513. The plurality of fourth recesses 604 are located between the contact portion 98B and the movable contact portion 513.
　当接部９８Ｂの表面（面９８１）には、複数の第５の窪み９８５（溝）が形成されている。複数の第５の窪み９８５は、動作ピン８Ｂの進行方向において動作ピン８Ｂと対向する。複数の第５の窪み９８５は、固定接触部３１３と可動接触部５１３とが対向している方向に並んでいる。当接部９８Ｂの面９８１は、第５の窪み９８５により凹凸形状となっている。 表面 A plurality of fifth recesses 985 (grooves) are formed on the surface (surface 981) of the contact portion 98B. The plurality of fifth recesses 985 face the operation pin 8B in the traveling direction of the operation pin 8B. The plurality of fifth recesses 985 are arranged in a direction in which the fixed contact portion 313 and the movable contact portion 513 face each other. The surface 981 of the contact portion 98B has an uneven shape due to the fifth recess 985.
　固定接点３１と可動接点５１との間で発生するアークは、それぞれ複数設けられた第１、第２、第３、第４、第５の窪み８２５、８２６、４０３、６０４、９８５に沿った経路で固定接点３１と可動接点５１との間を結ぶことがある。本実施形態の遮断装置１Ｂでは、それぞれ複数設けられた第１、第２、第３、第４、第５の窪み８２５、８２６、４０３、６０４、９８５が無い場合よりも、固定接触部３１３と可動接触部５１３との間の沿面距離が長くなるので、トラッキング現象を抑制できる。 The arc generated between the fixed contact 31 and the movable contact 51 is a path along a plurality of first, second, third, fourth, and fifth recesses 825, 826, 403, 604, 985, respectively. May connect the fixed contact 31 and the movable contact 51. In the shutoff device 1B of the present embodiment, the fixed contact portion 313 and Since the creepage distance with the movable contact portion 513 is increased, the tracking phenomenon can be suppressed.
　本実施形態において、第１、第２、第３、第４、又は第５の窪み８２５、８２６、４０３、６０４、９８５が形成された部位の表面の形状は、凹凸形状である。凹凸形状は、角が直角又は略直角に形成された凹凸形状であってもよいし、リップル形状であってもよい。リップル形状とは、角の部分がＲ状である凹凸形状である。なお、第１、第２、第３、第４、第５の窪み８２５、８２６、４０３、６０４、９８５のそれぞれは、ひとつであってもよいし、複数であってもよい。 In the present embodiment, the shape of the surface of the portion where the first, second, third, fourth, or fifth recesses 825, 826, 403, 604, and 985 are formed is an uneven shape. The concavo-convex shape may be a concavo-convex shape formed at a right angle or a substantially right angle, or may be a ripple shape. The ripple shape is a concavo-convex shape in which corner portions are R-shaped. Each of the first, second, third, fourth, and fifth depressions 825, 826, 403, 604, and 985 may be one or plural.
　また、動作ピン８Ｂの進行方向における動作ピン８Ｂの先端には、１又は複数の窪みが形成されていてもよい。動作ピン８Ｂの先端に複数の窪みが形成される場合、複数の窪みは、固定接触部３１３と可動接触部５１３とが対向している方向に並んでいることが好ましい。 {Circle around (1)} One or a plurality of depressions may be formed at the tip of the operation pin 8B in the traveling direction of the operation pin 8B. When a plurality of depressions are formed at the tip of the operation pin 8B, it is preferable that the plurality of depressions are arranged in a direction in which the fixed contact portion 313 and the movable contact portion 513 face each other.
　（実施形態３の変形例）
　以下、実施形態３の変形例に係る遮断装置１Ｃについて、図１２を用いて説明する。実施形態３と同様の構成については、同一の符号を付して説明を省略する。 (Modification of Embodiment 3)
Hereinafter, a blocking device 1C according to a modification of the third embodiment will be described with reference to FIG. The same components as those in the third embodiment are denoted by the same reference numerals, and description thereof is omitted.
　遮断装置１Ｃは、複数の柱状片９９を更に備えている。複数の柱状片９９は、例えば、鉄等の磁性材料により形成されている。複数の柱状片９９は、当接部９８Ｃに埋め込まれている。当接部９８Ｃにおける複数の第５の窪み９８５の壁面の少なくとも一部は、複数の柱状片９９により形成されている。複数の柱状片９９は、固定接触部３１３と可動接触部５１３とが対向している方向に並んでいる。複数の柱状片９９は、互いに平行に並んでいる。 The blocking device 1C further includes a plurality of columnar pieces 99. The plurality of columnar pieces 99 are formed of, for example, a magnetic material such as iron. The plurality of columnar pieces 99 are embedded in the contact portion 98C. At least a part of the wall surface of the plurality of fifth recesses 985 in the contact portion 98C is formed by the plurality of columnar pieces 99. The plurality of columnar pieces 99 are arranged in a direction in which the fixed contact portion 313 and the movable contact portion 513 face each other. The plurality of columnar pieces 99 are arranged in parallel with each other.
　本変形例では、第５の窪み９８５の壁面の少なくとも一部が磁性材料により形成されているので、第５の窪み９８５の壁面が例えば樹脂により形成されている場合と比較して、固定接触部３１３と可動接触部５１３との間に発生するアークのアーク電圧が高まる。したがって、本変形例の遮断装置１Ｃでは、消弧性能が向上する。 In this modification, since at least a part of the wall surface of the fifth recess 985 is formed of a magnetic material, the fixed contact portion is compared with the case where the wall surface of the fifth recess 985 is formed of, for example, resin. The arc voltage of the arc generated between 313 and movable contact portion 513 increases. Therefore, in the shutoff device 1C of this modification, the arc extinguishing performance is improved.
　本変形例において、第１のマスク４Ｂにおける複数の第３の窪み４０３の壁面の少なくとも一部が、鉄等の磁性材料からなる複数の柱状片により形成されていてもよい。また、第２のマスク６Ｂにおける複数の第４の窪み６０４の壁面の少なくとも一部が、鉄等の磁性材料からなる複数の柱状片により形成されていてもよい。また、動作ピン８Ｂに形成された複数の第１の窪み８２５及び複数の第２の窪み８２６の壁面の少なくとも一部が、鉄等の磁性材料からなる複数の柱状片により形成されていてもよい。 In the present modification, at least a part of the wall surfaces of the plurality of third recesses 403 in the first mask 4B may be formed of a plurality of columnar pieces made of a magnetic material such as iron. Further, at least a part of the wall surface of the plurality of fourth recesses 604 in the second mask 6B may be formed of a plurality of columnar pieces made of a magnetic material such as iron. Further, at least a part of the wall surfaces of the plurality of first recesses 825 and the plurality of second recesses 826 formed in the operation pin 8B may be formed of a plurality of columnar pieces made of a magnetic material such as iron. .
　（実施形態３及び実施形態３の変形例のまとめ）
　以上説明した実施形態３及び実施形態３の変形例から、以下の態様が開示されている。 (Summary of Embodiment 3 and Modifications of Embodiment 3)
The following aspects are disclosed from the third embodiment described above and the modifications of the third embodiment.
　遮断装置１Ｂ（又は１Ｃ）では、第１のマスク４Ｂにおいて動作ピン８Ｂと対向する面４０４、第２のマスク６Ｂにおいて動作ピン８Ｂと対向する面６０５、及び、動作ピン８Ｂにおいて第１のマスク４Ｂ又は第２のマスク６Ｂと対向する面（第１の面８２３Ｂ、第２の面８２４Ｂ）のうち少なくとも１つには、窪み（第１、第２、第３、第４の窪み８２５、８２６、４０３、６０４）が形成されている。 In the blocking device 1B (or 1C), the surface 404 facing the operation pin 8B in the first mask 4B, the surface 605 facing the operation pin 8B in the second mask 6B, and the first mask 4B in the operation pin 8B. Alternatively, at least one of the surfaces (first surface 823B, second surface 824B) facing the second mask 6B has a dent (first, second, third, fourth dent 825, 826, 403, 604) are formed.
　上記の構成によれば、固定接触部３１３と可動接触部５１３との間の沿面距離が長くなるので、トラッキング現象を抑制できる。 According to the above configuration, the creepage distance between the fixed contact portion 313 and the movable contact portion 513 is increased, so that the tracking phenomenon can be suppressed.
　また、遮断装置１Ｂ（又は１Ｃ）では、当接部９８Ｂ（又は９８Ｃ）の面９８１と動作ピン８Ｂの進行方向における先端の面（例えば、傾斜面８２１）とのうち少なくとも一方には、窪み（第５の窪み９８５）が形成されている。 Further, in the blocking device 1B (or 1C), at least one of the surface 981 of the contact portion 98B (or 98C) and the front surface (for example, the inclined surface 821) in the traveling direction of the operation pin 8B has a depression ( A fifth depression 985) is formed.
　上記の構成によれば、固定接触部３１３と可動接触部５１３との間の沿面距離が長くなるので、トラッキング現象を抑制できる。 According to the above configuration, the creepage distance between the fixed contact portion 313 and the movable contact portion 513 is increased, so that the tracking phenomenon can be suppressed.
　（実施形態４）
　以下、実施形態４に係る接点装置２Ｄ及び遮断装置１Ｄについて、図１３を用いて説明する。実施形態１と同様の構成については、同一の符号を付して説明を省略する。 (Embodiment 4)
Hereinafter, a contact device 2D and a breaking device 1D according to the fourth embodiment will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
　本実施形態の遮断装置１Ｄにおいて、動作ピン８Ｄは、電気絶縁性を有する複数（図１３では２つ）の絶縁部材８３を更に有している。各絶縁部材８３は、板状である。各絶縁部材８３は、突出部材８２Ｄに埋め込まれている。より詳細には、２つの絶縁部材８３のうち一方は、突出部材８２Ｄの第１の面８２３Ｄにおいて突出部材８２Ｄに埋め込まれている。２つの絶縁部材８３のうち他方は、突出部材８２Ｄの第２の面８２４Ｄにおいて突出部材８２Ｄに埋め込まれている。 遮断 In the shutoff device 1D of the present embodiment, the operation pin 8D further includes a plurality (two in FIG. 13) of insulating members 83 having electrical insulation. Each insulating member 83 has a plate shape. Each insulating member 83 is embedded in the protruding member 82D. More specifically, one of the two insulating members 83 is embedded in the protruding member 82D at the first surface 823D of the protruding member 82D. The other of the two insulating members 83 is embedded in the protruding member 82D at the second surface 824D of the protruding member 82D.
　第１のマスク４Ｄは、電気絶縁性を有する絶縁部材４６を更に含む。絶縁部材４６は、板状である。絶縁部材４６は、第１のマスク４Ｄにおいて動作ピン８Ｄの突出部材８２Ｄの第１の面８２３Ｄと対向する面４０４Ｄに形成されている。面４０４Ｄは、第１のマスク４Ｄの第１壁部４１Ｄに含まれる。絶縁部材４６は、第１のマスク４Ｄのうち、固定接触部３１３を基準として動作ピン８Ｄの進行方向側の領域に形成されている。絶縁部材４６は、当接部９８と固定接触部３１３との間に位置する。 (4) The first mask 4D further includes an insulating member 46 having electrical insulation. The insulating member 46 has a plate shape. The insulating member 46 is formed on a surface 404D of the first mask 4D that faces the first surface 823D of the projecting member 82D of the operation pin 8D. The surface 404D is included in the first wall portion 41D of the first mask 4D. The insulating member 46 is formed in a region of the first mask 4D on the traveling direction side of the operation pin 8D with reference to the fixed contact portion 313. The insulating member 46 is located between the contact part 98 and the fixed contact part 313.
　第２のマスク６Ｄは、電気絶縁性を有する絶縁部材６６を更に含む。絶縁部材６６は、板状である。絶縁部材６６は、第２のマスク６Ｄにおいて動作ピン８Ｄの突出部材８２Ｄの第２の面８２４Ｄと対向する面６０５Ｄに形成されている。面６０５Ｄは、第２のマスク６Ｄの第１壁部６１Ｄに含まれる。絶縁部材６６は、第２のマスク６Ｄのうち、可動接触部５１３を基準として動作ピン８Ｄの進行方向側の領域に形成されている。絶縁部材６６は、当接部９８と可動接触部５１３との間に位置する。 The second mask 6D further includes an insulating member 66 having electrical insulation. The insulating member 66 has a plate shape. The insulating member 66 is formed on a surface 605D of the second mask 6D facing the second surface 824D of the projecting member 82D of the operation pin 8D. The surface 605D is included in the first wall 61D of the second mask 6D. The insulating member 66 is formed in a region of the second mask 6D on the moving direction side of the operation pin 8D with respect to the movable contact portion 513. The insulating member 66 is located between the contact part 98 and the movable contact part 513.
　各絶縁部材８３、４６、６６は、固定接触部３１３と可動接触部５１３との間に発生するアークの経路上に配置されている。各絶縁部材８３、４６、６６は、例えば、セラミックである。各絶縁部材８３、４６、６６は、ガラスであってもよい。セラミック及びガラスの表面では、第１のマスク４Ｄの第１壁部４１Ｄ及び第２のマスク６Ｄの第１壁部６１Ｄを構成する材料である樹脂の表面と比較してトラッキング現象が発生し難いので、遮断装置１Ｄでは、トラッキング現象を抑制できる。また、セラミック及びガラスは、樹脂と比較して耐熱性が高いので、アークにより劣化しにくい。そのため、第１のマスク４Ｄが固定部材３の一部を覆い、第２のマスク６Ｄが可動部材５の一部を覆っている状態を維持できる。 Each insulating member 83, 46, 66 is arranged on a path of an arc generated between the fixed contact portion 313 and the movable contact portion 513. Each of the insulating members 83, 46, 66 is, for example, ceramic. Each of the insulating members 83, 46, 66 may be glass. On the surface of ceramic and glass, the tracking phenomenon is less likely to occur as compared with the surface of the resin which is the material forming the first wall 41D of the first mask 4D and the first wall 61D of the second mask 6D. In the blocking device 1D, the tracking phenomenon can be suppressed. Further, since ceramics and glass have higher heat resistance than resins, they are not easily deteriorated by an arc. Therefore, the state where the first mask 4D covers a part of the fixed member 3 and the second mask 6D covers a part of the movable member 5 can be maintained.
　第１のマスク４Ｄ、第２のマスク６Ｄ及び動作ピン８Ｄの少なくとも１つにおいて、その全体がセラミック又はガラス等の絶縁材料により形成されていてもよい。 (4) At least one of the first mask 4D, the second mask 6D, and the operation pin 8D may be entirely formed of an insulating material such as ceramic or glass.
　（実施形態５）
　以下、実施形態５に係る接点装置２Ｅ及び遮断装置１Ｅについて、図１４を用いて説明する。実施形態１と同様の構成については、同一の符号を付して説明を省略する。 (Embodiment 5)
Hereinafter, a contact device 2E and a breaking device 1E according to the fifth embodiment will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
　本実施形態の遮断装置１Ｅは、ストッパ１５を更に備えている。ストッパ１５は、例えば、樹脂により形成されている。ストッパ１５は、第１のマスク４と第２のマスク６とに連結されている。これにより、固定接点３１と可動接点５１とが接した状態が保たれる。したがって、遮断装置１Ｅでは、接圧ばね２１（図４参照）を省略可能である。 遮断 The blocking device 1E of the present embodiment further includes the stopper 15. The stopper 15 is formed of, for example, a resin. The stopper 15 is connected to the first mask 4 and the second mask 6. Thereby, the state where the fixed contact 31 and the movable contact 51 are in contact with each other is maintained. Therefore, in the shutoff device 1E, the contact pressure spring 21 (see FIG. 4) can be omitted.
　ストッパ１５は、板状である。ストッパ１５の厚さ方向と直交する第１の面１６には、溝１５０が形成されている。溝１５０の深さ方向は、ストッパ１５の厚さ方向に沿っている。溝１５０の断面形状は、三角形である。すなわち、溝１５０の形状は、楔形である。ストッパ１５において、第１の面１６とは反対側の第２の面１７には、動作ピン８の突出部材８２の先端が接している。突出部材８２の先端は、動作ピン８の進行方向において溝１５０と重なっている。言い換えると、突出部材８２が占める領域を動作ピン８の進行方向に延長した領域に溝１５０が形成されている。 The stopper 15 is plate-shaped. A groove 150 is formed in the first surface 16 orthogonal to the thickness direction of the stopper 15. The depth direction of the groove 150 is along the thickness direction of the stopper 15. The cross-sectional shape of the groove 150 is triangular. That is, the shape of the groove 150 is a wedge shape. In the stopper 15, the distal end of the protruding member 82 of the operation pin 8 is in contact with the second surface 17 opposite to the first surface 16. The tip of the protruding member 82 overlaps the groove 150 in the traveling direction of the operation pin 8. In other words, the groove 150 is formed in a region extending from the region occupied by the protruding member 82 in the traveling direction of the operation pin 8.
　ガス発生器７（図４参照）がガスを発生すると、加圧室７５内の圧力が上昇して、動作ピン８は、ストッパ１５にストッパ１５の厚さ方向の力を加える。その後、ストッパ１５は、動作ピン８から加えられる力により破断する。ストッパ１５は、動作ピン８がガス発生器７に駆動される前のとき、動作ピン８が固定接触部３１３と可動接触部５１３との間へ移動することを規制している。動作ピン８がガス発生器７に駆動される前とは、加圧室７５（図４参照）内の圧力が比較的低いために動作ピン８がストッパ１５を破断させていない期間を含む。つまり、ガス発生器７からガスが発生して加圧室７５内にガスが流入した後、動作ピン８がストッパ１５を破断させるまでの期間は、動作ピン８がガス発生器７に駆動される前の期間に含まれる。 When the gas generator 7 (see FIG. 4) generates gas, the pressure in the pressurizing chamber 75 increases, and the operating pin 8 applies a force to the stopper 15 in the thickness direction of the stopper 15. Thereafter, the stopper 15 is broken by the force applied from the operation pin 8. The stopper 15 regulates the movement of the operation pin 8 between the fixed contact portion 313 and the movable contact portion 513 before the operation pin 8 is driven by the gas generator 7. The state before the operation pin 8 is driven by the gas generator 7 includes a period in which the operation pin 8 does not break the stopper 15 because the pressure in the pressurizing chamber 75 (see FIG. 4) is relatively low. That is, after the gas is generated from the gas generator 7 and the gas flows into the pressurizing chamber 75, the operation pin 8 is driven by the gas generator 7 until the operation pin 8 breaks the stopper 15. Included in the previous period.
　動作ピン８がガス発生器７に駆動されると、ストッパ１５は、動作ピン８から加えられる力により溝１５０に沿って破断し、第１のマスク４につながった第１の部分と、第２のマスク６につながった第２の部分とに分かれる。ストッパ１５が破断すると、ストッパ１５による固定部材３と可動部材５との連結が解除される。これにより、可動部材５が固定部材３から離れることが可能になる。すなわち、動作ピン８が固定接触部３１３と可動接触部５１３との間へ移動することを規制するストッパ１５の規制が解除される。さらに、固定接点３１と可動接点５１との間の電磁反発力が可動部材５に加わることにより、可動部材５が固定部材３から離れる。そして、動作ピン８の突出部材８２は、第１の部分と第２の部分との間を通り、固定接触部３１３と可動接触部５１３との間へ移動する。 When the operation pin 8 is driven by the gas generator 7, the stopper 15 breaks along the groove 150 by the force applied from the operation pin 8, and the first portion connected to the first mask 4 and the second portion And a second portion connected to the mask 6. When the stopper 15 is broken, the connection between the fixed member 3 and the movable member 5 by the stopper 15 is released. Thereby, the movable member 5 can be separated from the fixed member 3. That is, the restriction of the stopper 15 that restricts the movement of the operation pin 8 between the fixed contact portion 313 and the movable contact portion 513 is released. Further, the movable member 5 is separated from the fixed member 3 by applying an electromagnetic repulsive force between the fixed contact 31 and the movable contact 51 to the movable member 5. Then, the projecting member 82 of the operation pin 8 passes between the first portion and the second portion and moves between the fixed contact portion 313 and the movable contact portion 513.
　本実施形態では、ガス発生器７が動作ピン８を駆動するために生じた、加圧室７５（図４参照）内の圧力が、比較的低いときは、ストッパ１５は動作ピン８の移動を妨げることができる。そのため、突出部材８２は固定接触部３１３と可動接触部５１３との間へ移動しない。すなわち、ストッパ１５が破断されるまでの間、ストッパ１５は動作ピン８の移動を妨げている。加圧室７５内の圧力が更に大きくなり、動作ピン８がストッパ１５を破断させると、突出部材８２が固定接触部３１３と可動接触部５１３との間へ移動する。したがって、固定接触部３１３と可動接触部５１３との間における突出部材８２の移動速度を高めることができるので、固定接触部３１３と可動接触部５１３との間に発生するアークが急速に引き延ばされる。これにより、遮断装置１Ｅの消弧性能が向上する。 In this embodiment, when the pressure in the pressurizing chamber 75 (see FIG. 4) generated by the gas generator 7 driving the operation pin 8 is relatively low, the stopper 15 moves the operation pin 8. Can be hindered. Therefore, the protruding member 82 does not move between the fixed contact portion 313 and the movable contact portion 513. That is, the stopper 15 prevents the movement of the operation pin 8 until the stopper 15 is broken. When the pressure in the pressurizing chamber 75 further increases and the operation pin 8 breaks the stopper 15, the protruding member 82 moves between the fixed contact portion 313 and the movable contact portion 513. Therefore, the moving speed of the protruding member 82 between the fixed contact portion 313 and the movable contact portion 513 can be increased, and the arc generated between the fixed contact portion 313 and the movable contact portion 513 is rapidly extended. . Thereby, the arc extinguishing performance of the cutoff device 1E is improved.
　要するに、ストッパ１５は、動作ピン８から加えられる力により破断されるまでの間、動作ピン８が固定接触部３１３と可動接触部５１３との間へ移動することを妨げている。 In short, the stopper 15 prevents the operation pin 8 from moving between the fixed contact portion 313 and the movable contact portion 513 until the stopper is broken by the force applied from the operation pin 8.
　遮断装置１Ｅは、可動部材５を固定部材３から離れさせる向きの力を可動部材５に加える引張ばね又は圧縮ばね等を備えていてもよい。この場合、ストッパ１５が破断したとき、固定部材３と可動部材５との間に作用している電磁反発力に加えて、引張ばね又は圧縮ばね等からの力により、可動部材５が固定部材３から離れる。 The blocking device 1 </ b> E may include a tension spring, a compression spring, or the like that applies a force to the movable member 5 to move the movable member 5 away from the fixed member 3. In this case, when the stopper 15 is broken, in addition to the electromagnetic repulsive force acting between the fixed member 3 and the movable member 5, the movable member 5 is moved by the force of a tension spring or a compression spring. Move away from
　なお、ガス発生器７により動作ピン８が駆動されていないとき、動作ピン８の突出部材８２は、第２のマスク６に接しているが（図４参照）、この構成に限定されず、動作ピン８の突出部材８２は、第２のマスク６に接していなくてもよく、第２のマスク６から離れていてもよい。 When the operation pin 8 is not driven by the gas generator 7, the projecting member 82 of the operation pin 8 is in contact with the second mask 6 (see FIG. 4). The projecting member 82 of the pin 8 does not need to be in contact with the second mask 6 and may be separated from the second mask 6.
　また、ストッパ１５は、第１のマスク４に代えて固定部材３に連結されていてもよい。ストッパ１５は、第２のマスク６に代えて可動部材５に連結されていてもよい。 The stopper 15 may be connected to the fixing member 3 instead of the first mask 4. The stopper 15 may be connected to the movable member 5 instead of the second mask 6.
　（実施形態５の変形例１）
　以下、実施形態５の変形例１に係る接点装置２Ｆ及び遮断装置１Ｆについて、図１５Ａ～１７を用いて説明する。実施形態１と同様の構成については、同一の符号を付して説明を省略する。 (Modification 1 of Embodiment 5)
Hereinafter, a contact device 2F and a breaking device 1F according to a first modification of the fifth embodiment will be described with reference to FIGS. 15A to 17. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
　図１５Ａ、１５Ｂでは、第１のマスク４及び第２のマスク６の図示を省略している。遮断装置１Ｆは、実施形態１の遮断装置１の構成に加えて、２つのストッパ１５Ｆと、４つの保持突起１８とを更に備えている。 15A and 15B, the illustration of the first mask 4 and the second mask 6 is omitted. The blocking device 1F further includes two stoppers 15F and four holding projections 18 in addition to the configuration of the blocking device 1 of the first embodiment.
　４つの保持突起１８は、固定部材３と可動部材５との各々から２つずつ突出している。各保持突起１８は、Ｌ字状である。各保持突起１８は、弾性変形可能である。２つのストッパ１５Ｆのうち一方は、４つの保持突起１８のうち固定部材３から突出した１つの保持突起１８と、可動部材５から突出した１つの保持突起１８とに対応し、２つのストッパ１５Ｆのうち他方は、４つの保持突起１８のうち残りの２つに対応している。各ストッパ１５Ｆは、対応する２つの保持突起１８により固定部材３と可動部材５とに保持されている。これにより、固定接点３１と可動接点５１とが接した状態が保たれる。したがって、遮断装置１Ｆでは、接圧ばね２１（図４参照）を省略可能である。 #The four holding projections 18 protrude two from each of the fixed member 3 and the movable member 5. Each holding projection 18 is L-shaped. Each holding projection 18 is elastically deformable. One of the two stoppers 15F corresponds to one of the four holding projections 18 protruding from the fixed member 3 and one of the holding projections 18 protruding from the movable member 5, and corresponds to one of the two stoppers 15F. The other of them corresponds to the remaining two of the four holding projections 18. Each stopper 15F is held on the fixed member 3 and the movable member 5 by two corresponding holding projections 18. Thereby, the state where the fixed contact 31 and the movable contact 51 are in contact with each other is maintained. Therefore, the contact pressure spring 21 (see FIG. 4) can be omitted in the shutoff device 1F.
　保持突起１８は、固定接点３１と可動接点５１とが対向する方向におけるストッパ１５Ｆの移動を規制している。さらに、保持突起１８は、固定接点３１と可動接点５１とが対向する方向と、動作ピン８の進行方向と、に対して直交する方向におけるストッパ１５Ｆの移動を規制している。 The holding projection 18 regulates the movement of the stopper 15F in the direction in which the fixed contact 31 and the movable contact 51 face each other. Further, the holding projection 18 regulates the movement of the stopper 15F in a direction orthogonal to the direction in which the fixed contact 31 and the movable contact 51 face each other and the direction in which the operation pin 8 advances.
　図１６に示すように、各ストッパ１５Ｆは、平面視Ｅ字状の板状である。すなわち、各ストッパ１５Ｆは、板状の基部１５１と、基部１５１から突出した３つの突起１５２と、を有している。３つの突起１５２は、基部１５１の長手方向に並んでいる。 各 As shown in FIG. 16, each of the stoppers 15F is a plate-like member having an E-shape in plan view. That is, each stopper 15F has a plate-shaped base 151 and three protrusions 152 protruding from the base 151. The three protrusions 152 are arranged in the longitudinal direction of the base 151.
　各ストッパ１５Ｆは、３つの突起１５２のうち両端の２つの突起１５２において、対応する２つの保持突起１８に引っ掛けられている。各ストッパ１５Ｆは、対応する２つの保持突起１８のうち一方と固定部材３との間に１つの突起１５２が挟まれて、突起１５２が保持突起１８に引っ掛けられるようにして、固定部材３に保持されている。より詳細には、保持突起１８の弾性により、保持突起１８と固定部材３との間にストッパ１５Ｆの１つの突起１５２が挟まれている。同様にして、各ストッパ１５Ｆは、対応する２つの保持突起１８のうち残りの１つと可動部材５との間に１つの突起１５２が挟まれて、突起１５２が保持突起１８に引っ掛けられるようにして、可動部材５に保持されている。 ス ト ッ パ Each stopper 15F is hooked on the corresponding two holding projections 18 at the two projections 152 at both ends of the three projections 152. Each of the stoppers 15F is held by the fixing member 3 such that one projection 152 is sandwiched between one of the corresponding two holding projections 18 and the fixing member 3, and the projection 152 is hooked on the holding projection 18. Have been. More specifically, one projection 152 of the stopper 15F is sandwiched between the holding projection 18 and the fixing member 3 due to the elasticity of the holding projection 18. Similarly, each stopper 15F is configured such that one projection 152 is sandwiched between the remaining one of the two corresponding holding projections 18 and the movable member 5 so that the projection 152 is hooked on the holding projection 18. , Held by the movable member 5.
　このように、保持突起１８は、ストッパ１５Ｆに対して、固定接点３１と可動接点５１とが対向する方向の移動を規制している。さらに、保持突起１８は、ストッパ１５Ｆに対して、固定接点３１と可動接点５１とが対向する方向と、動作ピン８の進行方向と、に対して直交する方向の移動を規制している。 As described above, the holding projection 18 restricts the movement of the stopper 15F in the direction in which the fixed contact 31 and the movable contact 51 face each other. Further, the holding projection 18 regulates the movement of the stopper 15F in a direction perpendicular to the direction in which the fixed contact 31 and the movable contact 51 face each other and the direction in which the operation pin 8 advances.
　なお、保持突起１８は、ストッパ１５Ｆをかしめてもよい。あるいは、保持突起１８は、ストッパ１５Ｆに圧入されてもよい。 保持 The holding projection 18 may be caulked with the stopper 15F. Alternatively, the holding projection 18 may be pressed into the stopper 15F.
　図１７に示すように、動作ピン８Ｆは、２つの押圧突起８４を更に有している。２つの押圧突起８４は、突出部材８２から突出している。２つの押圧突起８４は、２つのストッパ１５Ｆに一対一で対応している。 動作 As shown in FIG. 17, the operation pin 8F further has two pressing projections 84. The two pressing protrusions 84 protrude from the protruding member 82. The two pressing projections 84 correspond one-to-one with the two stoppers 15F.
　動作ピン８Ｆがガス発生器７（図４参照）に駆動されると、２つの押圧突起８４はそれぞれ、対応するストッパ１５Ｆを押す。より詳細には、ストッパ１５Ｆの３つの突起１５２のうち、中心の突起１５２を押す。加圧室７５（図４参照）内の圧力が大きくなり、各ストッパ１５Ｆが対応する２つの保持突起１８から動作ピン８の進行方向に向けて脱落すると、ストッパ１５Ｆによる固定部材３と可動部材５との固定が解除され、さらに固定部材３と可動部材５との間に作用している電磁反発力が加わることにより、可動部材５が固定部材３から離れる。そして、突出部材８２は、固定接触部３１３と可動接触部５１３との間に挿入される。 When the operation pin 8F is driven by the gas generator 7 (see FIG. 4), each of the two pressing projections 84 presses the corresponding stopper 15F. More specifically, of the three protrusions 152 of the stopper 15F, the center protrusion 152 is pressed. When the pressure in the pressurizing chamber 75 (see FIG. 4) increases and each stopper 15F falls off from the corresponding two holding projections 18 in the traveling direction of the operating pin 8, the fixed member 3 and the movable member 5 The movable member 5 is separated from the fixed member 3 by applying an electromagnetic repulsive force acting between the fixed member 3 and the movable member 5. Then, the protruding member 82 is inserted between the fixed contact portion 313 and the movable contact portion 513.
　本変形例において、固定部材３ではなく第１のマスク４（図４参照）から保持突起１８が突出していてもよい。また、可動部材５ではなく第２のマスク６（図４参照）から保持突起１８が突出していてもよい。 In this modification, the holding projection 18 may protrude from the first mask 4 (see FIG. 4) instead of the fixing member 3. Further, the holding projection 18 may protrude from the second mask 6 (see FIG. 4) instead of the movable member 5.
　（実施形態５の変形例２）
　以下、実施形態５の変形例２に係る遮断装置１Ｇについて、図１８を用いて説明する。実施形態１と同様の構成については、同一の符号を付して説明を省略する。 (Modification 2 of Embodiment 5)
Hereinafter, a blocking device 1G according to a second modification of the fifth embodiment will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
　遮断装置１Ｇは、実施形態１の遮断装置１の構成に加えて、ストッパ１５Ｇを更に備えている。ストッパ１５Ｇは、棒状である。ストッパ１５Ｇは、ストッパ１５Ｇの第１端を含む第１端部１５３と、ストッパ１５Ｇの第２端を含む第２端部１５４と、第１端部１５３と第２端部１５４との間の中間部１５５と、を有している。第１端部１５３及び第２端部１５４は、中間部１５５よりも細い。したがって、ストッパ１５Ｇは、第１端部１５３及び第２端部１５４で破断しやすい。 The blocking device 1G further includes a stopper 15G in addition to the configuration of the blocking device 1 of the first embodiment. The stopper 15G has a rod shape. The stopper 15G includes a first end 153 including a first end of the stopper 15G, a second end 154 including a second end of the stopper 15G, and an intermediate portion between the first end 153 and the second end 154. 155. The first end 153 and the second end 154 are thinner than the middle part 155. Therefore, the stopper 15G is easily broken at the first end 153 and the second end 154.
　動作ピン８Ｇの突出部材８２Ｇには、中間部１５５が挿入された挿入孔８２７が形成されている。収容部９Ｇの第１ボディ９１Ｇの内面には、ストッパ１５Ｇの第１端及び第２端が挿入された２つの凹部９１１が形成されている。ストッパ１５Ｇの第１端及び第２端が２つの凹部９１１に挿入されていることにより、動作ピン８Ｇの動きが規制されている。 挿入 An insertion hole 827 into which the intermediate portion 155 is inserted is formed in the projecting member 82G of the operation pin 8G. Two concave portions 911 into which the first end and the second end of the stopper 15G are inserted are formed on the inner surface of the first body 91G of the storage portion 9G. Since the first end and the second end of the stopper 15G are inserted into the two concave portions 911, the movement of the operation pin 8G is restricted.
　動作ピン８Ｇがガス発生器７に駆動されると、初めは、ストッパ１５Ｇにより、動作ピン８Ｇの突出部材８２Ｇが固定接触部３１３と可動接触部５１３との間へ移動することが妨げられる。加圧室７５内の圧力が大きくなり、ストッパ１５Ｇが破断すると、突出部材８２Ｇは、固定接触部３１３と可動接触部５１３との間に挿入される。 と When the operation pin 8G is driven by the gas generator 7, first, the stopper 15G prevents the projecting member 82G of the operation pin 8G from moving between the fixed contact portion 313 and the movable contact portion 513. When the pressure in the pressurizing chamber 75 increases and the stopper 15G breaks, the projecting member 82G is inserted between the fixed contact portion 313 and the movable contact portion 513.
　ストッパ１５Ｇは、棒状ではなく板状に形成されていてもよい。 The stopper 15G may be formed not in a rod shape but in a plate shape.
　（実施形態５の変形例３）
　以下、実施形態５の変形例３に係る遮断装置１Ｈについて、図１９を用いて説明する。実施形態１と同様の構成については、同一の符号を付して説明を省略する。 (Modification 3 of Embodiment 5)
Hereinafter, a shutoff device 1H according to a third modification of the fifth embodiment will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
　遮断装置１Ｈは、実施形態１の遮断装置１の構成に加えて、複数（図１９では２つ）のストッパ１５Ｈを更に備えている。複数のストッパ１５Ｈは、収容部９の第１ボディ９１の内面から突出している。複数のストッパ１５Ｈは、動作ピン８のベース８１に接している。複数のストッパ１５Ｈは、ベース８１の進行方向側に位置している。各ストッパ１５Ｈにおいて、第１ボディ９１と隣接する部位には、溝１５６が形成されている。したがって、各ストッパ１５Ｈは、溝１５６が形成されている部分で破断しやすい。 The blocking device 1H further includes a plurality of (two in FIG. 19) stoppers 15H in addition to the configuration of the blocking device 1 of the first embodiment. The plurality of stoppers 15H protrude from the inner surface of the first body 91 of the storage section 9. The plurality of stoppers 15H are in contact with the base 81 of the operation pin 8. The plurality of stoppers 15H are located on the traveling direction side of the base 81. In each of the stoppers 15H, a groove 156 is formed in a portion adjacent to the first body 91. Therefore, each stopper 15H is easily broken at a portion where the groove 156 is formed.
　動作ピン８がガス発生器７に駆動されると、初めは、ベース８１が複数のストッパ１５Ｈに当たっていることにより、動作ピン８の突出部材８２が固定接触部３１３と可動接触部５１３との間へ移動することが妨げられる。加圧室７５内の圧力が大きくなり、複数のストッパ１５Ｈが破断すると、突出部材８２は、固定接触部３１３と可動接触部５１３との間に挿入される。 When the operation pin 8 is driven by the gas generator 7, the projecting member 82 of the operation pin 8 is initially moved between the fixed contact portion 313 and the movable contact portion 513 because the base 81 contacts the plurality of stoppers 15H. Movement is impeded. When the pressure in the pressure chamber 75 increases and the plurality of stoppers 15H break, the protruding member 82 is inserted between the fixed contact portion 313 and the movable contact portion 513.
　遮断装置１Ｈは、複数のストッパ１５Ｈに代えて、１つの環状のストッパを備えていてもよい。この場合に、環状のストッパは、第１ボディ９１の内面から突出し第１ボディ９１の内面に沿った環状に形成される。 The blocking device 1H may include one annular stopper instead of the plurality of stoppers 15H. In this case, the annular stopper protrudes from the inner surface of the first body 91 and is formed in an annular shape along the inner surface of the first body 91.
　（実施形態５の変形例４）
　以下、実施形態５の変形例４に係る遮断装置１Ｊについて、図２０を用いて説明する。実施形態１と同様の構成については、同一の符号を付して説明を省略する。 (Modification 4 of Embodiment 5)
Hereinafter, a shutoff device 1J according to a fourth modification of the fifth embodiment will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
　遮断装置１Ｊは、実施形態１の遮断装置１の構成に加えて、複数（図２０では２つ）のストッパ１５Ｊを更に備えている。複数のストッパ１５Ｊは、動作ピン８のベース８１から突出している。収容部９Ｊの第１ボディ９１Ｊの内面には、複数のストッパ１５Ｊが挿入された複数（図２０では２つ）の凹部９１２が形成されている。 The blocking device 1J further includes a plurality of (two in FIG. 20) stoppers 15J in addition to the configuration of the blocking device 1 of the first embodiment. The plurality of stoppers 15J protrude from the base 81 of the operation pin 8. A plurality of (two in FIG. 20) recesses 912 into which a plurality of stoppers 15J are inserted are formed on the inner surface of the first body 91J of the housing portion 9J.
　各ストッパ１５Ｊにおいて、動作ピン８のベース８１と隣接する部位には、溝１５７が形成されている。したがって、各ストッパ１５Ｊは、溝１５７が形成されている部分で破断しやすい。 溝 A groove 157 is formed in each stopper 15J at a position adjacent to the base 81 of the operation pin 8. Therefore, each stopper 15J is easily broken at a portion where the groove 157 is formed.
　動作ピン８がガス発生器７に駆動されると、初めは、複数のストッパ１５Ｊが複数の凹部９１２において第１ボディ９１Ｊに引っ掛かっていることにより、動作ピン８の突出部材８２が固定接触部３１３と可動接触部５１３との間へ移動することが妨げられる。加圧室７５内の圧力が大きくなり、複数のストッパ１５Ｊが破断すると、突出部材８２は、固定接触部３１３と可動接触部５１３との間に挿入される。 When the operation pin 8 is driven by the gas generator 7, initially, the plurality of stoppers 15J are hooked on the first body 91J in the plurality of recesses 912, so that the protruding member 82 of the operation pin 8 is fixed to the fixed contact portion 313. And the movable contact portion 513 are prevented from moving. When the pressure in the pressurizing chamber 75 increases and the plurality of stoppers 15J break, the protruding member 82 is inserted between the fixed contact portion 313 and the movable contact portion 513.
　遮断装置１Ｊは、複数のストッパ１５Ｊに代えて、１つの環状のストッパを備えていてもよい。この場合に、環状のストッパは、ベース８１の外周面から突出しベース８１の外周面に沿った環状に形成される。 The blocking device 1J may include one annular stopper instead of the plurality of stoppers 15J. In this case, the annular stopper protrudes from the outer peripheral surface of the base 81 and is formed in an annular shape along the outer peripheral surface of the base 81.
　（実施形態５及び実施形態５の変形例１～４のまとめ）
　以上説明した実施形態５及び実施形態５の変形例１～４から、以下の態様が開示されている。 (Summary of Embodiment 5 and Modifications 1 to 4 of Embodiment 5)
The following aspects are disclosed from the fifth embodiment described above and the first to fourth modifications of the fifth embodiment.
　遮断装置１Ｅ（又は１Ｆ～１Ｊ）は、ストッパ１５（又は１５Ｆ～１５Ｊ）を更に備える。ストッパ１５（又は１５Ｆ～１５Ｊ）は、動作ピン８（又は８Ｆ、８Ｇ）が駆動部（ガス発生器７）に駆動される前のとき、動作ピン８（又は８Ｆ、８Ｇ）が固定接触部３１３と可動接触部５１３との間へ移動することを規制する。動作ピン８は、駆動部に駆動されることによりストッパ１５の規制を解除して、固定接触部３１３と可動接触部５１３との間へ移動する。 The blocking device 1E (or 1F to 1J) further includes a stopper 15 (or 15F to 15J). When the operation pin 8 (or 8F, 8G) is not driven by the driving unit (gas generator 7), the stopper 15 (or 15F to 15J) moves the operation pin 8 (or 8F, 8G) to the fixed contact portion 313. And the movable contact portion 513 are restricted from moving. The operation pin 8 releases the restriction of the stopper 15 by being driven by the driving unit, and moves between the fixed contact unit 313 and the movable contact unit 513.
　上記の構成によれば、動作ピン８（又は８Ｆ、８Ｇ）からストッパ１５（又は１５Ｆ～１５Ｊ）に加えられる力の大きさが、ストッパ１５（又は１５Ｆ～１５Ｊ）の規制を解除させる力の大きさに達してから、動作ピン８（又は８Ｆ、８Ｇ）は固定接触部３１３と可動接触部５１３との間に挿入される。したがって、ストッパ１５（又は１５Ｆ～１５Ｊ）が無い場合と比較して、固定接触部３１３と可動接触部５１３との間における動作ピン８（又は８Ｆ、８Ｇ）の移動速度が高まり、アークが急速に引き延ばされるので、遮断装置１Ｅ（又は１Ｆ～１Ｊ）の消弧性能が更に向上する。 According to the above configuration, the magnitude of the force applied to the stopper 15 (or 15F to 15J) from the operation pin 8 (or 8F, 8G) depends on the magnitude of the force for releasing the restriction of the stopper 15 (or 15F to 15J). After that, the operation pin 8 (or 8F, 8G) is inserted between the fixed contact portion 313 and the movable contact portion 513. Therefore, the moving speed of the operating pin 8 (or 8F, 8G) between the fixed contact portion 313 and the movable contact portion 513 is increased as compared with the case where the stopper 15 (or 15F to 15J) is not provided, and the arc is rapidly generated. Since it is extended, the arc extinguishing performance of the shutoff device 1E (or 1F to 1J) is further improved.
　上述した各実施形態は、変形例も含めて、適宜組み合わせて実現されてもよい。 The embodiments described above may be implemented in appropriate combinations, including modifications.
１、１Ａ、１Ｂ、１Ｃ、１Ｄ、１Ｅ、１Ｆ、１Ｇ、１Ｈ、１Ｊ　遮断装置
１５、１５Ｆ、１５Ｇ、１５Ｈ、１５Ｊ　ストッパ
２、２Ａ、２Ｂ、２Ｄ、２Ｅ、２Ｆ　接点装置
３、３Ａ　固定部材
３１　固定接点
３２、３２Ａ　固定片
３４　第１の突出部
３１３　固定接触部
４、４Ａ、４Ｂ、４Ｄ　第１のマスク
４１、４１Ｂ、４１Ｄ　第１壁部（接触壁）
４０３　第３の窪み（窪み）
４０４、４０４Ｄ　面
４１０　第１の開口部
５、５Ａ　可動部材
５１　可動接点
５２、５２Ａ　可動片
５４　第２の突出部
５１３　可動接触部
６、６Ａ、６Ｂ、６Ｄ　第２のマスク
６１、６１Ｂ、６１Ｄ　第１壁部（接触壁）
６０４　第４の窪み（窪み）
６０５、６０５Ｄ　面
６１０　第２の開口部
７　ガス発生器（駆動部）
７４　燃料
８、８Ｂ、８Ｄ、８Ｆ、８Ｇ　動作ピン
８２１　傾斜面
８２２　外周面
８２３、８２３Ｂ、８２３Ｄ　第１の面（面）
８２４、８２４Ｂ、８２４Ｄ　第２の面（面）
８２５　第１の窪み（窪み）
８２６　第２の窪み（窪み）
９８、９８Ｂ、９８Ｃ　当接部
９８１　面
９８５　第５の窪み（窪み）
Ｒ１、Ｒ２　領域 1, 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1J Breaking device 15, 15F, 15G, 15H, 15J Stopper 2, 2A, 2B, 2D, 2E, 2F Contact device 3, 3A Fixing member 31 Fixed contact 32, 32A Fixed piece 34 First protrusion 313 Fixed contact 4, 4, 4A, 4B, 4D First mask 41, 41B, 41D First wall (contact wall)
403 Third dent (dent)
404, 404D surface 410 first opening 5, 5A movable member 51 movable contact 52, 52A movable piece 54 second protrusion 513 movable contact 6, 6, 6A, 6B, 6D second mask 61, 61B, 61D 1 wall (contact wall)
604 Fourth dent (dent)
605, 605D surface 610 second opening 7 gas generator (drive unit)
74 Fuel 8, 8B, 8D, 8F, 8G Operation pin 821 Inclined surface 822 Outer peripheral surface 823, 823B, 823D First surface (surface)
824, 824B, 824D Second surface (surface)
825 First depression (dent)
826 Second depression (dent)
98, 98B, 98C Contact part 981 Surface 985 Fifth dent (dent)
R1, R2 area

Claims (15)

  1. 　固定接点を有する導電性の固定部材と、
    　前記固定接点に接した状態と前記固定接点から離れた状態とのうちいずれかの状態を取る可動接点を有し、前記固定部材とは別体に形成される導電性の可動部材と、
    　前記固定部材の表面の領域のうち、前記固定接点における前記可動接点との接触部分である固定接触部を囲み前記可動部材に対向する領域の少なくとも一部に設けられた電気絶縁性の第１のマスクと、前記可動部材の表面の領域のうち、前記可動接点における前記固定接点との接触部分である可動接触部を囲み前記固定部材に対向する領域の少なくとも一部に設けられた電気絶縁性の第２のマスクと、のうち少なくとも一方と、を備える、
    　接点装置。     A conductive fixing member having a fixed contact,
    Having a movable contact that takes one of a state of contact with the fixed contact and a state separated from the fixed contact, a conductive movable member formed separately from the fixed member,
    A first electrically insulating first region which surrounds a fixed contact portion of the fixed contact, which is a contact portion of the fixed contact with the movable contact, and is provided in at least a part of a region opposed to the movable member. A mask and an electrically insulating property provided in at least a part of a region facing the fixed member, surrounding a movable contact portion that is a contact portion of the movable contact with the fixed contact in a region of the surface of the movable member. A second mask, and at least one of the second mask,
    Contact device.
  2. 　前記第１のマスクは、第１の開口部を有し前記第１の開口部の内縁において前記固定接触部を囲み、
    　前記第２のマスクは、第２の開口部を有し前記第２の開口部の内縁において前記可動接触部を囲む、
    　請求項１に記載の接点装置。     The first mask has a first opening, and surrounds the fixed contact portion at an inner edge of the first opening;
    The second mask has a second opening and surrounds the movable contact portion at an inner edge of the second opening.
    The contact device according to claim 1.
  3. 　前記第１のマスクと前記第２のマスクとの両方を備える、
    　請求項１又は２に記載の接点装置。     Comprising both the first mask and the second mask,
    The contact device according to claim 1.
  4. 　請求項１～３のいずれか一項に記載の接点装置と、
    　動作ピンと、
    　前記動作ピンを駆動し前記動作ピンを前記固定接触部と前記可動接触部との間に挿入する駆動部と、を備える、
    　遮断装置。     A contact device according to any one of claims 1 to 3,
    Operating pins,
    A driving unit that drives the operation pin and inserts the operation pin between the fixed contact unit and the movable contact unit.
    Blocking device.
  5. 　前記第１のマスクは、前記固定接触部と前記可動接触部との間に挿入された前記動作ピンにより覆われる第１の開口部を有し前記第１の開口部の内縁において前記固定接触部を囲み、
    　前記第２のマスクは、前記固定接触部と前記可動接触部との間に挿入された前記動作ピンにより覆われる第２の開口部を有し前記第２の開口部の内縁において前記可動接触部を囲む、
    　請求項４に記載の遮断装置。     The first mask has a first opening covered by the operation pin inserted between the fixed contact and the movable contact. The fixed contact at an inner edge of the first opening. Enclose,
    The second mask has a second opening covered by the operation pin inserted between the fixed contact and the movable contact. The movable contact at an inner edge of the second opening. Enclose,
    The blocking device according to claim 4.
  6. 　前記固定接触部と前記可動接触部との間に挿入された前記動作ピンの外周面は、前記固定接触部と前記可動接触部とのうち少なくとも一方に接する、
    　請求項４又は５に記載の遮断装置。     An outer peripheral surface of the operation pin inserted between the fixed contact portion and the movable contact portion contacts at least one of the fixed contact portion and the movable contact portion,
    The blocking device according to claim 4.
  7. 　前記第２のマスクを備え、
    　前記動作ピンは、進行方向における先端に傾斜面を含み、
    　前記動作ピンは、前記駆動部に駆動されることにより、前記傾斜面において前記第２のマスクを押しながら、前記第２のマスクと前記固定部材との間に挿入される、
    　請求項４～６のいずれか一項に記載の遮断装置。     Comprising the second mask,
    The operation pin includes an inclined surface at a tip in a traveling direction,
    The operation pin is inserted between the second mask and the fixing member by being driven by the drive unit, while pressing the second mask on the inclined surface.
    The shutoff device according to any one of claims 4 to 6.
  8. 　前記固定接触部と前記可動接触部との間に挿入された前記動作ピンの外周面に接する接触壁を更に備える、
    　請求項４～７のいずれか一項に記載の遮断装置。     Further comprising a contact wall that is in contact with the outer peripheral surface of the operation pin inserted between the fixed contact portion and the movable contact portion,
    The shutoff device according to any one of claims 4 to 7.
  9. 　前記駆動部は、燃料を燃焼させることによりガスを発生するガス発生器を有し、
    　前記動作ピンは、前記ガス発生器で発生した前記ガスの圧力により駆動される、
    　請求項４～８のいずれか一項に記載の遮断装置。     The drive unit has a gas generator that generates gas by burning fuel,
    The operating pin is driven by the pressure of the gas generated by the gas generator,
    The blocking device according to any one of claims 4 to 8.
  10. 　前記第１のマスクは、前記固定部材のうち、前記固定接触部を基準として前記動作ピンの進行方向側の領域を覆い、
    　前記第２のマスクは、前記可動部材のうち、前記可動接触部を基準として前記動作ピンの前記進行方向側の領域を覆う、
    　請求項４～９のいずれか一項に記載の遮断装置。     The first mask covers, in the fixed member, a region on the traveling direction side of the operation pin with respect to the fixed contact portion,
    The second mask covers an area of the movable member on the traveling direction side of the operation pin with reference to the movable contact portion,
    The blocking device according to any one of claims 4 to 9.
  11. 　前記固定部材は、前記固定接点が設けられた固定片と、前記固定片から突出している第１の突出部と、を有し、
    　前記可動部材は、前記可動接点が設けられた可動片と、前記可動片から突出しており前記第１の突出部に対向する第２の突出部と、を有し、
    　前記第１の突出部及び前記第２の突出部は、前記固定接点及び前記可動接点に対して、前記動作ピンの進行方向において離れて位置しており、
    　前記駆動部は、前記動作ピンを駆動し前記動作ピンを前記固定接触部と前記可動接触部との間を経由させて前記第１の突出部と前記第２の突出部との間に挿入する、
    　請求項４～１０のいずれか一項に記載の遮断装置。     The fixing member has a fixing piece provided with the fixing contact, and a first protrusion protruding from the fixing piece,
    The movable member includes a movable piece provided with the movable contact, and a second protrusion protruding from the movable piece and facing the first protrusion.
    The first protrusion and the second protrusion are located away from the fixed contact and the movable contact in a traveling direction of the operation pin,
    The drive unit drives the operation pin and inserts the operation pin between the first protrusion and the second protrusion through the space between the fixed contact and the movable contact. ,
    The blocking device according to any one of claims 4 to 10.
  12. 　前記第１のマスクにおいて前記動作ピンと対向する面、前記第２のマスクにおいて前記動作ピンと対向する面、及び、前記動作ピンにおいて前記第１のマスク又は前記第２のマスクと対向する面のうち少なくとも１つには、窪みが形成されている、
    　請求項４～１１のいずれか一項に記載の遮断装置。     At least one of a surface of the first mask facing the operation pin, a surface of the second mask facing the operation pin, and a surface of the operation pin facing the first mask or the second mask. In one, a depression is formed,
    An interrupting device according to any one of claims 4 to 11.
  13. 　前記固定接触部と前記可動接触部との間に挿入された前記動作ピンのうち前記動作ピンの進行方向における先端に接する当接部を更に備える、
    　請求項４～１２のいずれか一項に記載の遮断装置。     The operating pin further includes a contact portion that is in contact with a tip in a traveling direction of the operating pin among the operating pins inserted between the fixed contact portion and the movable contact portion,
    The shut-off device according to any one of claims 4 to 12.
  14. 　前記当接部の面と前記動作ピンの前記進行方向における前記先端の面とのうち少なくとも一方には、窪みが形成されている、
    　請求項１３に記載の遮断装置。     A depression is formed on at least one of the surface of the contact portion and the surface of the distal end in the traveling direction of the operation pin,
    The blocking device according to claim 13.
  15. 　前記動作ピンが前記駆動部に駆動される前のとき、前記動作ピンが前記固定接触部と前記可動接触部との間へ移動することを規制するストッパを更に備え、
    　前記動作ピンは、前記駆動部に駆動されることにより前記ストッパの規制を解除して、前記固定接触部と前記可動接触部との間へ移動する、
    　請求項４～１４のいずれか一項に記載の遮断装置。     When the operation pin is not driven by the drive unit, the apparatus further includes a stopper that regulates movement of the operation pin between the fixed contact unit and the movable contact unit.
    The operation pin releases the restriction of the stopper by being driven by the driving unit, and moves between the fixed contact unit and the movable contact unit.
    An interrupting device according to any one of claims 4 to 14.
PCT/JP2019/033784 2018-09-14 2019-08-28 Contact device and breaker device WO2020054432A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0269448U (en) * 1988-11-12 1990-05-25
JPH11232978A (en) * 1998-02-17 1999-08-27 Harness Syst Tech Res Ltd Circuit breaker apparatus
JP2000156142A (en) * 1998-09-18 2000-06-06 Harness Syst Tech Res Ltd Circuit breaker
JP2012212543A (en) * 2011-03-31 2012-11-01 Nihon Kaiheiki Industry Co Ltd Miniature switch for dc cutoff with arc-extinguishing device
JP2014049300A (en) * 2012-08-31 2014-03-17 Toyoda Gosei Co Ltd Conduction blocking device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0269448U (en) * 1988-11-12 1990-05-25
JPH11232978A (en) * 1998-02-17 1999-08-27 Harness Syst Tech Res Ltd Circuit breaker apparatus
JP2000156142A (en) * 1998-09-18 2000-06-06 Harness Syst Tech Res Ltd Circuit breaker
JP2012212543A (en) * 2011-03-31 2012-11-01 Nihon Kaiheiki Industry Co Ltd Miniature switch for dc cutoff with arc-extinguishing device
JP2014049300A (en) * 2012-08-31 2014-03-17 Toyoda Gosei Co Ltd Conduction blocking device

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