WO2011092762A1 - 電磁接触器ユニット - Google Patents
電磁接触器ユニット Download PDFInfo
- Publication number
- WO2011092762A1 WO2011092762A1 PCT/JP2010/005585 JP2010005585W WO2011092762A1 WO 2011092762 A1 WO2011092762 A1 WO 2011092762A1 JP 2010005585 W JP2010005585 W JP 2010005585W WO 2011092762 A1 WO2011092762 A1 WO 2011092762A1
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- WO
- WIPO (PCT)
- Prior art keywords
- electromagnetic
- pair
- piece
- electromagnetic contactor
- contactors
- Prior art date
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/32—Latching movable parts mechanically
- H01H50/323—Latching movable parts mechanically for interlocking two or more relays
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- 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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
Definitions
- the present invention relates to an electromagnetic contactor unit that connects a plurality of electromagnetic contactors.
- a switchgear unit described in Patent Document 1 As an example of connecting electromagnetic contactors, a switchgear unit described in Patent Document 1 is known. This switchgear unit is fitted into the slit on the coupling side surface of the two switchgears that are juxtaposed with the switchover unit, so that when one switchgear is in the on state, the other switchgear is put into the on state. I try to prevent the transition.
- an E-shaped clamp having a central shaft and a pair of legs sandwiching the central shaft is provided, and a rib having a recess is formed on the opposing surface formed at the end of the coupling side surface of the two opening / closing devices. is doing. Then, the clamp is externally fitted into the recess with the center shaft fitted into the recess, and the two opening / closing devices are integrated by attaching both the legs from the opposite side of the rib recess.
- an electromagnetic contactor unit configured to connect at least two electromagnetic contactors disposed side by side with a connecting piece.
- the electromagnetic contactor accommodates a mounting hole formed at each corner of the mounting plate portion and a half of the connecting piece formed at an upper portion of the mounting hole within an outer dimension, and is adjacent to the electromagnetic contactor.
- a piece storage recess that opens to the connecting surface, and a locking portion that locks the connecting piece formed in the piece storage recess.
- the connecting piece includes a pair of engaging protrusions that individually engage with the adjacent mounting holes of the electromagnetic contactors disposed side by side, and a locked portion that is locked to the locking portion.
- the electromagnetic contactors are integrated by mounting the connecting pieces in the concave portions of the electromagnetic contactors placed side by side.
- the connecting piece fits within the outer dimension of the magnetic contactor, and the outer dimension of the connected electromagnetic contactor does not increase.
- the pair of engaging projections of the connecting piece engages with the mounting holes formed in the mounting plate portions of both electromagnetic contactors, and the locked portion is locked to the locking portion formed in the piece storage recess, Even if an external force is applied to shift the connected electromagnetic contactors in opposite directions in all directions, the shift between the electromagnetic contactors can be prevented.
- the connecting piece is formed on a mounting plate portion having the pair of engaging protrusions formed on one surface and the other surface of the mounting plate portion.
- elasticity can be secured at the curved portion, and a locked portion that protrudes to the opposite side of the engagement protrusion is formed at the tip thereof.
- the electromagnetic contactor unit which concerns on the other form of this invention is comprised by the recessed part which accepts the insertion of the tool in which the said piece storage recessed part tightens the screw penetrated to the said attachment hole.
- a recess for inserting a tool such as a screwdriver that tightens a screw inserted into the mounting hole is used, so a space for storing the connecting piece needs to be newly formed. There is no.
- an electromagnetic contactor unit is inserted between the adjacent electromagnetic contactors between a pair of engaging protrusions of the connecting piece, and cooperates with the pair of engaging protrusions.
- a pinching protrusion is formed as a pinching portion.
- the pair of engaging protrusions are formed in a C-shaped cylindrical shape by notching the cylindrical portion on the side of the joint surface with the piece storage portion, A tapered portion is formed on the surface. According to this configuration, since the engagement protrusion is formed in a C-shaped cylindrical shape, it can be bent when inserted into the attachment hole of the electromagnetic contactor, and the engagement to the attachment hole becomes easy. Since the tapered end portion is formed at the tip, the engagement with the mounting hole becomes easier.
- a piece storage recess is formed in the magnetic contactor, and the connection piece is stored in the piece storage recess on the connection surface side of the electromagnetic contactor to be connected.
- the connecting piece is attached to the outside of the electromagnetic contactor. Electromagnetic contactors can be firmly connected without protruding from the diameter.
- FIG. 1 It is a perspective view which shows the electromagnetic contactor unit which concerns on this invention. It is a disassembled perspective view of the electromagnetic contactor unit of FIG. It is sectional drawing which shows an electromagnetic contactor. It is a top view explaining operation
- FIG. 1 is a perspective view showing an electromagnetic contactor unit that is connected to a power supply circuit of, for example, a three-phase induction motor (not shown) and controls forward / reverse operation of the induction motor
- FIG. 2 is an exploded perspective view of FIG.
- the electromagnetic contactor unit 1 is composed of two electromagnetic contactors 2 a and 2 b and one reversible unit 3. Of the two electromagnetic contactors 2a and 2b, one electromagnetic contactor 2a is an electromagnetic contactor that controls forward rotation of the induction motor, and the other electromagnetic contactor 2b is an electromagnetic contactor that controls reverse rotation of the induction motor.
- the electromagnetic contactor 2 a is a device provided with a terminal portion 10 having a contact on the upper surface and a coil terminal portion 11 on the upper surface, and as shown in FIG.
- the contact portion 7, the electromagnet 8, and the drive lever 9 are accommodated.
- the main body case 6 includes a lower case 6a that houses the electromagnet 8, an upper case 6b that houses the contact portion 7, and an arc extinguishing cover 6c that covers the upper portion of the upper case 6b.
- the arc extinguishing cover 6c is formed with a rectangular display window 6c2 that communicates with the front and back, and the operation display piece 7a1 of the contact portion 7 protrudes from the upper surface through the display window 6c2.
- the arc extinguishing cover 6c is formed with connecting holes 12 to 14 through which the one reversible unit 3 can be connected.
- the connection holes 12 to 14 are holes opened in a square shape.
- the contact portion 7 includes a movable contact support 7a disposed in the upper case 6b so as to be slidable in a predetermined direction, and a return that presses the movable contact support 7a in one direction. It is comprised with the spring 7b.
- the electromagnet 8 is wound around an exciting coil 8a, and is inserted into a cylindrical coil frame 8b whose axial direction is set parallel to the sliding direction of the movable contact support 7a, and a hollow portion of the coil frame 8b.
- the fixed core 8c is fixed to the side wall of the case 6a, and the movable core 8d is opposed to the fixed core 8c so as to be detachable and inserted into the hollow portion of the coil frame 8b.
- the movable contact support 7a has a side opposite to the return spring 7b side and the movable core 8d of the electromagnet 8. They are connected by a drive lever 9.
- This drive lever 9 is a plate-like member, the upper end in the longitudinal direction is a rotation fulcrum 9a, the movable core connecting portion 9b is formed on the other end in the longitudinal direction, and the movable contact support connecting portion is in the center in the longitudinal direction. 9c is provided.
- a pair of supported portions 9d are formed at positions closer to the rotation fulcrum portion 9a than the movable contact support connecting portion 9c.
- the movable core connecting portion 9b of the drive lever 9 is inserted and connected from above into a connecting hole 8e formed in the movable core 8d. And the rotation fulcrum part 9a of the drive lever 9 enters into the fulcrum recessed part 6c1 provided in the lower surface of the arc extinguishing cover 6c, and is connected rotatably.
- the other electromagnetic contactor 2b has the same structure as one electromagnetic contactor 2a, the detailed description is abbreviate
- the reversible unit 3 fixes two electromagnetic contactors 2a and 2b adjacent to each other, and even if an operation signal is input to both of the two electromagnetic contactors 2a and 2b by some operation (two electromagnetic contactors 2a and 2b). This is an interlock device that mechanically locks the two electromagnetic contactors 2a and 2b to be in the closed state (ON) at the same time (even if the electromagnets 8 of the contactors 2a and 2b try to operate simultaneously).
- the reversible unit 3 has a rectangular parallelepiped unit main body 3a and a contactor mounted on the back side of the unit main body 3a that comes into contact with the arc extinguishing covers 6c of the two electromagnetic contactors 2a and 2b arranged adjacent to each other. Snap pieces 3c to 3f having claw portions protruding outward from the tip protruding from the portion 3b. Further, the reversible unit 3 is connected to the surface side of the unit main body 3a, as shown in FIGS. 1 and 2, with connecting holes 3h, 3i, 3j, 3k, 3l, which engage with hook pieces of an auxiliary contact unit (not shown). 3m is formed.
- an interlock mechanism 31 is provided in the unit main body 3a to mechanically lock the two electromagnetic contactors 2a, 2b from being simultaneously closed (ON).
- the interlock mechanism 31 includes sliding members 32a and 32b that are individually connected to the operation display pieces 7a1 of the electromagnetic contactors 2a and 2b and are slidable in the connecting direction of the electromagnetic contactors 2a and 2b, that is, in the longitudinal direction.
- a sliding regulating member 33 that connects the opposing portions of the sliding members 32a and 32b on one side of the front and back, and regulates the other sliding with respect to one sliding between the sliding members 32a and 32b, and It is comprised with the rotation control member 34 which opposes the sliding control member 33 and controls the rotation.
- the sliding members 32a and 32b are formed in the same shape to be pointed when seen from the plane, and are outward in a direction perpendicular to the longitudinal direction formed on the outer side of the rectangular plate portion 32c and the inner end of the rectangular plate portion 32c. And a hook-shaped portion 32d that bends. Then, the sliding members 32a and 32b are arranged in a released state (unlocked state) so that the hooked portions 32d face each other in a back-to-back state as shown in FIG.
- the sliding restriction member 33 includes a base portion 33a engaged with an engagement pin 32e formed on the outer end side of the flange-shaped portion 32d of the sliding members 32a and 32b, and a sliding member from the center portion of the base portion 33a.
- the triangular protrusion 33b protrudes to the 32a side.
- the rotation restricting member 34 has a top 34a that is close to and opposed to the top of the triangular protrusion 33b of the sliding restricting member 33 in the released state, and passes through the top 34a to release the sliding member 32a from the released state.
- the sliding members 32a and 32b have operation display pieces 36a and 36b protruding from rectangular unit windows 35a and 35b formed on the surface of the unit body 3a on the front side. Is formed. Further, as shown in FIG. 5, cylindrical display piece engaging portions 38a protruding from rectangular unit windows 37a and 37b formed on the back surface of the unit body 3a are provided on the back surfaces of the sliding members 32a and 32b. 38b is formed.
- the reversible unit 3 is mounted on the electromagnetic contactors 2a and 2b with the above-described electromagnetic contactors 2a and 2b being opened (OFF).
- the front end of the snap piece 3c of the reversible unit 3 is brought into electromagnetic contact while the display piece engaging portions 38a and 38b are engaged with the operation display pieces 7a1 of the electromagnetic contactors 2a and 2b. It is inserted into the connecting hole 12 of the container 2a and engaged with the peripheral edge of the opening.
- the tip of the snap piece 3d is inserted into the connecting hole 13 of the electromagnetic contactor 2a and engaged with the opening periphery, and the tip of the snap piece 3e is inserted into the connecting hole 12 of the electromagnetic contactor 2b and engaged with the opening periphery.
- the tip of the snap piece 3f is inserted into the connecting hole 13 of the electromagnetic contactor 2b and engaged with the periphery of the opening, and the reversible unit 3 is mounted on the electromagnetic contactors 2a and 2b.
- both the electromagnetic contactors 2a and 2b are in an open (OFF) state.
- the interlock mechanism 31 is also in a released state in which the sliding members 32a and 32b are both moved to the right, and the base 33a of the sliding restricting member 33 is in the longitudinal direction.
- the direction is substantially orthogonal. Therefore, the top of the triangular protrusion 33b of the sliding restricting member 33 of the interlock mechanism 31 is in close proximity to the top 34a of the rotation restricting member 34, and the sliding restricting member 33 rotates around one end of the base 33a. It is possible to move.
- the triangular protrusion 33b of the sliding restriction member 33 is in contact with or close to the rotation restriction wall 34b of the rotation restriction member 34. Therefore, when the right electromagnetic contactor 2b is to be closed (ON), the sliding member 32b of the interlock mechanism 31 is shown in FIG. 4B via the operation display piece 7a1 of the electromagnetic contactor 2b. An attempt is made to move from the open (OFF) position to the closed (ON) position on the sliding member 32b side. For this reason, the sliding restricting member 33 tries to turn clockwise around the engaging pin 32e of the sliding member 32a, but the triangular protrusion 33b is formed on the turning restricting wall 34b of the turning restricting member 34. The contact of the sliding restricting member 33 is prevented by the contact. As a result, when the left electromagnetic contactor 2a is in a closed circuit (ON) state, the transition of the right electromagnetic contactor 2b to the closed circuit (ON) is reliably prevented.
- the interlock mechanism 31 of the reversible unit 3 is in the released state as shown in FIG. 4 (a)
- the right electromagnetic contactor 2b is closed (ON) as shown in FIG. 4 (c).
- the sliding member 32b of the interlock mechanism 31 slides toward the sliding member 32a via the operation display piece 7a1 of the electromagnetic contactor 2b.
- the sliding restricting member 33 rotates clockwise around the engaging pin 32e of the sliding member 32a, and the triangular protrusion 33b contacts the turning restricting wall 34c of the turning restricting member 34. Or close to each other.
- the sliding of the sliding member 32a away from the sliding member 32b is restricted by restricting the counterclockwise rotation of the sliding restricting member 33. Therefore, the transition from the open (OFF) state to the closed (ON) state of the left electromagnetic contactor 2a is reliably prevented.
- a connection structure is employed in which the mounting plate portion 41 formed on the lower case 6a for mounting both the electromagnetic contactors 2a and 2b on the substrate is connected by the connecting piece 42, and the electromagnetic contactors 2a and 2b are connected more firmly. Yes.
- this coupling structure is provided with mounting screws (used for mounting the electromagnetic contactors 2a and 2b on the substrate at the four corners of the mounting plate portion 41 of the lower case 6a of the electromagnetic contactors 2a and 2b.
- a mounting hole 41a is formed through which (not shown) is inserted.
- the mounting plate portion 41 is formed with a notch portion 41b on the end side in the axial direction of the electromagnet 8 of each mounting hole 41a.
- a piece receiving recess 43 for receiving a connecting piece 42 and allowing the insertion of a tool such as a screwdriver for tightening the attaching screw inserted into the attaching hole a is formed on the upper side of each attaching hole 41a.
- This piece storage recess 43 is formed so as to surround the mounting hole 41a from two inner sides, and a locking piece 44 as a locking portion protruding downward is formed on the inclined upper surface 43a of the piece storage recess 43. .
- the piece storage recess 43 is formed so that the outer surface of the connection piece 42 fits within the outer diameter of the electromagnetic contactors 2a and 2b in a state where the half of the connection piece 42 is stored as will be described later.
- the connecting piece 42 is made of a synthetic resin material, for example, molded, and as shown in FIG. 7A, the attachment holes 41a of the electromagnetic contactors 2a and 2b arranged side by side on the lower surface side of the oval attachment plate portion 42a.
- a pair of engaging projections 42b and 42c that are engaged with each other are formed to project.
- a cylindrical holding protrusion 42d that forms a holding portion with the engaging protrusions 42b and 42c is formed at an intermediate position between the engaging protrusions 42b and 42c.
- FIG. 7A the attachment holes 41a of the electromagnetic contactors 2a and 2b arranged side by side on the lower surface side of the oval attachment plate portion 42a.
- a pair of engaging projections 42b and 42c that are engaged with each other are formed to project.
- a cylindrical holding protrusion 42d that forms a holding portion with the engaging protrusions 42b and 42c is formed at an intermediate position between the engaging protrusions 42b and 42c.
- each of the engaging protrusions 42b and 42c has a C-shaped cylindrical shape in which the cylindrical portion is notched on the surface facing the piece storage recess 43 of the electromagnetic contactors 2a and 2b.
- the tapered portion 42e is formed on the lower end side.
- side plate portions 42f and 42g extending upward at positions corresponding to substantially the centers of the engaging projections 42b and 42c are formed on the upper portion of the mounting plate portion 42a, and the lower end sides of these side plate portions 42f and 42g are the front plate.
- a lattice-like frame portion 42i is formed on the back side to ensure mechanical strength.
- a curved portion 42j is formed that extends upward from the upper end of the front plate portion 42h and then toward the piece storage recess 43 side of the electromagnetic contactors 2a and 2b.
- a hook portion 42k is formed as a pair of locked portions that are locked to the inside of the locking piece 44 that is formed at the top of the above-described piece storage recess 43 that slightly protrudes upward.
- an engaging portion 42m that engages with the front side of the locking piece 44 is formed at the front end portions of the side plate portions 42f and 42g.
- the operation of the above embodiment will be described.
- the side walls of the pair of electromagnetic contactors 2a and 2b are placed in the same direction as shown in FIG. Make contact.
- the electromagnets 8 of the electromagnetic contactors 2a and 2b are in a non-energized state, and the movable contact support 7a of the contact portion 7 is pressed by the return spring 7b and maintained in an open (OFF) state.
- the operation display piece 7a1 of the electromagnetic contactors 2a and 2b indicates the open position on the right side as shown in FIG.
- the connection holes 12 and 13 formed in the arc extinguishing cover 6c of the electromagnetic contactor 2a and the electromagnetic contactor 2b are turned off.
- the snap holes 3c, 3d and 3e, 3f of the reversible unit 3 are opposed to the coupling holes 12, 13 formed in the arc cover 6c.
- the snap pieces 3c, 3d and 3e, 3f are inserted into the coupling holes 12 and 13 of the electromagnetic contactors 2a and 2b by pushing the reversible unit 3 toward the electromagnetic contactors 2a and 2b.
- the display piece engaging portions 38a and 38b of the reversible unit 3 are engaged with the operation display pieces 7a1 of the electromagnetic contactors 2a and 2b.
- connection piece 42 is first connected to an engagement protrusion 42 b formed on the lower surface side of the connection piece 42 with the back side of the connection piece 42 set to the piece storage recess 43 side.
- 42c and the clamping projection 42d are engaged with the mounting holes 41a of the electromagnetic contactors 2a and 2b, and the clamping projection 42d is inserted between the notches 41b formed on the mounting plate 41 of the electromagnetic contactors 2a and 2b. .
- the clamping protrusion 42d and the engagement protrusions 42b and 42c sandwich the mounting hole 41a and the notch 41b in the mounting plate 41 of the electromagnetic contactors 2a and 2b.
- the engagement protrusions 42b and 42c of the connecting piece 42 are formed in the C-shaped cylindrical portion, it is possible to bend and the tapered portion 42e is formed at the tip, Engagement with the hole 41a can be easily performed.
- the bending portion 42j of the connecting piece 42 is bent, and the hook portion 42k is inserted into the back side of the locking piece 44 formed in the upper portion of the piece receiving recess 43 of the electromagnetic contactors 2a and 2b, and the side plate portions 42f and 42g are inserted.
- the locking piece 44 is sandwiched and fixed between the hook portion 42k and the engaging portion 42m.
- the engaging protrusions 42b and 42c of the connecting piece 42 are placed in the mounting holes 41a of the mounting plate portion 41 of the electromagnetic contactors 2a and 2b. While being engaged, the hook portion 42k to be locked and the engaging portion 42m of the side plate portions 42f and 42g sandwich the locking piece 44 formed on the top of the piece storage recess 43, Can withstand enough.
- the mounting plate portion 42a formed with the engagement protrusions 42b and 42c is attached to the mounting plate in one of the electromagnetic contactors 2a (or 2b).
- the engaging portions 44m of the side plate portions 42f and 42g come into contact with the engaging piece 44. For this reason, the external force shifted in the opposite direction can be sufficiently resisted. Even when an external force in the twisting direction acts on the magnetic contactors 2a and 2b, it can be sufficiently resisted in the same manner as described above.
- the reversible unit 3 is removed and the curved portion 42j of the connecting piece 42 is bent downward, so that the hook portion 42k is placed above the piece receiving recess 43.
- the connecting piece 42 can be easily detached from the piece storing recess 43 by rotating the connecting piece 42 so as to be separated from the piece receiving recess 43 in a state where it is detached from the back surface of the formed locking piece 44.
- the reversible unit 3 is mounted on the upper surface of the electromagnetic contactors 2a and 2b opposite to the connecting piece 42, the electromagnetic contactors 2a and 2b can be connected and held more firmly.
- the connecting piece can be formed by an integral molding process such as mold molding, it can be easily manufactured.
- the existing electromagnetic contactors 2a and 2b are greatly modified.
- the strength of the lower case 6a does not decrease.
- the clamping protrusion 42d formed between the engaging protrusions 42b and 42c of the connecting piece 42 has a columnar shape. It can also be formed in a conical shape or a wedge shape that narrows as it goes to. Further, the clamping protrusion 42d can be omitted.
- the hook part 42k can be slid up and down,
- the hook portion 42k may be biased upward by an elastic body such as a spring.
- the locking piece 44 formed in the piece storage recess 43 of the electromagnetic contactors 2a and 2b is not limited to being formed on the upper side of the piece storage recess 43, but is formed on the inner side (side surface in the Y direction) of the piece storage recess 43. You may make it do. In this case, it is only necessary to form the locked portions on the left and right side portions of the connecting piece 42 and to bring the upper surface of the connecting piece 42 into contact with the upper surface of the piece receiving recess 43.
- an electromagnetic contactor unit that can be firmly connected without affecting the outer dimensions when the electromagnetic contactors are connected to each other.
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Abstract
Description
そこで、本発明は、上記従来例の未解決の課題に着目してなされたものであり、電磁接触器同士を連結した際に、外形寸法に影響を与えることなく、強固に連結することが可能な電磁接触器ユニットを提供することを目的としている。
この構成によると、湾曲部で弾性を確保することができ、その先端に係合突起とは反対側へ突出する被係止部が形成されているので、この被係止部を電磁接触器の駒収納凹部に形成された係止部に係止することにより、連結駒の駒収納凹部から係合突起とは反対側への移動が規制される。
この構成によると、電磁接触器を基板等に取付ける際に取付孔に挿通したねじを締めるドライバなどの工具の挿通するための凹部を利用するので、連結駒を収納する空間を新たに形成する必要がない。
この構成によると、連結駒の係合突起と挟持用突起との間で電磁接触器の取付板部の連結面と取付孔との間を挟持することができ、電磁接触器同士をより強固に連結することができる。
この構成によると、係合突起がC字筒状に形成されていることで、電磁接触器の取付孔に挿入する際に撓むことが可能となり、取付孔への係合が容易となるとともに、先端に先細テーパー部が形成されているのでより取付孔への係合が容易となる。
図1は、例えば三相の誘導電動機(図示せず)の給電回路に接続され、誘導電動機の正逆運転制御する電磁接触器ユニットを示す斜視図、図2は図1の分解斜視図である。
電磁接触器ユニット1は、2台の電磁接触器2a,2bと、1台の可逆ユニット3とで構成されている。
2台の電磁接触器2a,2bのうち一方の電磁接触器2aは、誘導電動機を正転制御する電磁接触器であり、他方の電磁接触器2bは、誘導電動機を逆転制御する電磁接触器で
電磁接触器2aは、図2に示すように、上面に、接点をそれぞれ有する端子部10と、コイル端子部11とを備えた装置であり、図3に示すように、本体ケース6内に、接点部7、電磁石8及び駆動レバー9が収納されている。
本体ケース6は、電磁石8を収納している下ケース6aと、接点部7を収納している上ケース6bと、上ケース6bの上部を覆っている消弧カバー6cとを有している。
消弧カバー6cには表裏に連通する矩形状の表示窓6c2が形成されており、この表示窓6c2を通じて接点部7の動作表示片7a1が上面に突出されている。また、消弧カバー6cには、1台の可逆ユニット3を連結可能とする連結孔12~14が表裏に貫通して形成されている。連結孔12~14は、四角形状に開口した孔である。
電磁石8は、励磁コイル8aを巻装し、軸方向が前記可動接点支え7aの摺動方向と平行に設定された筒状のコイル枠8bと、このコイル枠8bの空洞部内に挿入され、下ケース6aの側壁に固定される固定コア8cと、この固定コア8cに接離自在に対向し、コイル枠8bの空洞部に挿入されている可動コア8dとを備えている。
この駆動レバー9は板状部材であり、長手方向の上端を回動支点部9aとし、長手方向の他端側に可動コア連結部9bが形成され、長手方向の中央部に可動接点支え連結部9cが設けられている。また、可動接点支え連結部9cより回動支点部9a側に寄った位置に一対の被支持部9dが形成されている。
なお、他方の電磁接触器2bは、一方の電磁接触器2aと同一構造を有するので、その詳細説明はこれを省略する。
可逆ユニット3は、2台の電磁接触器2a,2bを隣接配置して固定するとともに、何らかの操作により2台の電磁接触器2a,2bの両者に動作信号が入力しても(2台の電磁接触器2a,2bの電磁石8が同時に動作しようとしても)、2台の電磁接触器2a,2bが同時に閉路(ON)状態となるのを機械的にロックするインターロック装置である。
また、可逆ユニット3は、ユニット本体の3aの表面側に、図1及び図2に示すように、図示しない補助接点ユニットのフック片が係合する連結孔3h,3i,3j,3k,3l,3mが形成されている。
回動規制部材34は、ユニット本体3a内に、釈放状態における摺動規制部材33の三角形状突出部33bの頂部と近接対向する頂部34aと、この頂部34aを通り摺動部材32aを釈放状態から摺動させたときに生じる三角形状突出部33bの頂部の移動軌跡に沿った円弧面でなる回動規制壁部34bと、前記頂部34aを通り摺動部材32bを釈放状態から摺動させたときに生じる三角形状突出部33bの頂部の移動軌跡に沿った円弧面でなる回動規制壁部34cとを少なくとも有する。
このように電磁接触器2aが投入状態となると、電磁接触器2aの接点部7の動作表示片7a1が図4(a)に示す開路(OFF)位置から図4(b)に示す閉路位置に移動する。この動作表示片7a1に可逆ユニット3の摺動部材32aが連結されているので、この摺動部材32aが図4(b)に示すように、図4(a)に示す開路(OFF)位置から閉路位置に移動して左側投入状態となる。このため、摺動規制部材33が摺動部材32bの係合ピン32eを中心として回動する反時計方向に回動することになり、三角形状突出部33bが回動規制部材34の回動規制壁部34bと接触又は近接対向することになる。
側板部42f及び42gの上端側は、前面板部42hの上端から上方に向かい次いで後方に電磁接触器2a,2bの駒収納凹部43側に向かう湾曲部42jが形成されている。この湾曲部42jの先端には上方に僅かに突出する前述した駒収納凹部43の上部に形成された係止片44の内側に係止される一対の被係止部としてのフック部42kが形成されている。また、側板部42f及び42gの先端部には係止片44の正面側に係合する係合部42mが形成されている。
一対の電磁接触器2a,2bに可逆ユニット3を装着するには、先ず、一対の電磁接触器2a,2bを、図5に示すように、互いに同一方向に併置した状態で、互いの側壁を接触させる。この状態では、電磁接触器2a,2bの電磁石8が非通電状態となっており、接点部7の可動接点支え7aが復帰ばね7bによって押圧されて開路(OFF)状態に維持されている。このため、電磁接触器2a,2bの動作表示片7a1が図5に示すように、右側の開路位置を示している。
この状態で、可逆ユニット3を電磁接触器2a,2b側に押下することにより、各スナップ片3c,3d及び3e,3fが電磁接触器2a及び2bの連結孔12,13に挿入されて係止されるとともに、可逆ユニット3の表示片係合部38a及び38bが電磁接触器2a及び2bの動作表示片7a1に係合される。
このように、2つの連結駒42で電磁接触器2a及び2bの取付板部41側を強固に連結することにより、図1に示すX方向で電磁接触器2a及び2bを連結面から引き離す方向の外力に対しては、電磁接触器2a及び2bの取付孔41aに係合突起42b及び42cが個別に係合していることにより、十分に抗することができる。
しかも、電磁接触器2a及び2bの連結駒42とは反対側の上面には可逆ユニット3が装着されているので、電磁接触器2a,2b同士をより強固に連結保持することができる。
また、連結駒をモールド成型等の一体成型加工で形成することができるので、製作を容易に行うことができる。
なお、上記実施形態においては、連結駒42の係合突起42b及び42c間に形成した挟持用突起42dが円柱状である場合について説明したが、これに限定されるものではなく、板状や下端に行くに従い細くなる円錐状又は楔状に形成することもできる。また、挟持用突起42dを省略することもできる。
また、電磁接触器2a及び2bの駒収納凹部43に形成した係止片44は、駒収納凹部43の上部側に形成する場合に限らず、駒収納凹部43の内側(Y方向側面)に形成するようにしてもよい。この場合には、連結駒42の左右側部に被係止部を形成するとともに、連結駒42の上面を駒収納凹部43の上面に接触させればよい。
Claims (8)
- 併置した少なくとも2台の電磁接触器を連結駒で連結するようにした電磁接触器ユニットであって、
前記電磁接触器は、取付板部の各角部に形成した取付孔と、該取付孔の上部に形成した前記連結駒の半部を外形寸法内に収めて収納し、隣接する電磁接触器との連接面に開口する駒収納凹部と、該駒収納凹部に形成した前記連結駒を係止する係止部とを備え、
前記連結駒は、併置した前記電磁接触器の隣接する前記取付孔に個別に係合する一対の係合突起と、前記係止部に係止される被係止部とを備えている
ことを特徴とする電磁接触器ユニット。 - 前記連結駒は、前記一対の係合突起を一方の面に形成した取付板部と、該取付板部の他方の面に形成した一対の側板部と、該一対の側板部の前記取付板部側を連結する前面板部と、該前面板部の先端から後方側に湾曲し、先端に前記被係止部を突出形成した湾曲部とを少なくとも有することを特徴とする請求項1に記載の電磁接触器ユニット。
- 前記駒収納凹部は、前記取付孔に挿通したねじを締める工具の挿通を許容する凹部で構成されていることを特徴とする請求項1又は2に記載の電磁接触器ユニット。
- 前記連結駒の一対の係合突起間に、隣接する前記電磁接触器間に挿通されて、前記一対の係合突起と協働して挟持部となる挟持用突起を形成したことを特徴とする請求項1又は2に記載の電磁接触器ユニット。
- 前記一対の係合突起は、円筒部を記駒収納部との接触面側で切欠いたC字筒状に形成され、先端側外周面に先細のテーパー部が形成されていることを特徴とする請求項1又は2に記載の電磁接触器ユニット。
- 前記連結駒の一対の係合突起間に、隣接する前記電磁接触器間に挿通されて、前記一対の係合突起と協働して挟持部となる挟持用突起を形成したことを特徴とする請求項3に記載の電磁接触器ユニット。
- 前記一対の係合突起は、円筒部を記駒収納部との接触面側で切欠いたC字筒状に形成され、先端側外周面に先細のテーパー部が形成されていることを特徴とする請求項3に記載の電磁接触器ユニット。
- 前記連結駒の一対の係合突起間に、隣接する前記電磁接触器間に挿通されて、前記一対の係合突起と協働して挟持部となる挟持用突起を形成し、
前記一対の係合突起は、円筒部を記駒収納部との接触面側で切欠いたC字筒状に形成され、先端側外周面に先細のテーパー部が形成されていることを特徴とする請求項3に記載の電磁接触器ユニット。
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US13/500,407 US8436702B2 (en) | 2010-01-27 | 2010-09-13 | Electromagnetic contactor unit |
EP10844531.3A EP2530697B1 (en) | 2010-01-27 | 2010-09-13 | Electromagnetic contactor unit |
CN201080045225.9A CN102668007B (zh) | 2010-01-27 | 2010-09-13 | 电磁接触器单元 |
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JP2010015215A JP5018905B2 (ja) | 2010-01-27 | 2010-01-27 | 電磁接触器ユニット |
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EP (1) | EP2530697B1 (ja) |
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CN106558452A (zh) * | 2015-09-30 | 2017-04-05 | 明光市和诚电气有限公司 | 一种交流接触器安装下盖 |
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JP5526920B2 (ja) * | 2010-03-26 | 2014-06-18 | 富士電機機器制御株式会社 | 可逆形電磁接触器 |
JP5933519B2 (ja) * | 2013-12-26 | 2016-06-08 | 三菱電機株式会社 | 電気機器収納用の筐体 |
CN104377061B (zh) * | 2014-09-15 | 2016-08-24 | 厦门宏发开关设备有限公司 | 一种可逆接触器的机械联锁模块结构 |
JP6045763B1 (ja) | 2015-09-29 | 2016-12-14 | 三菱電機株式会社 | 電磁接触器 |
DE102016125382A1 (de) * | 2016-12-22 | 2018-06-28 | Phoenix Contact Gmbh & Co. Kg | Modulare Schaltschützanordnung |
JP7314807B2 (ja) * | 2020-01-21 | 2023-07-26 | 富士電機機器制御株式会社 | 電磁接触器 |
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US8436702B2 (en) | 2013-05-07 |
US20120249271A1 (en) | 2012-10-04 |
EP2530697A4 (en) | 2014-05-21 |
JP5018905B2 (ja) | 2012-09-05 |
CN102668007A (zh) | 2012-09-12 |
EP2530697B1 (en) | 2016-12-21 |
EP2530697A1 (en) | 2012-12-05 |
JP2011154866A (ja) | 2011-08-11 |
CN102668007B (zh) | 2015-08-19 |
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