CN111211015A - Quick closing circuit breaker and circuit breaker group - Google Patents
Quick closing circuit breaker and circuit breaker group Download PDFInfo
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- CN111211015A CN111211015A CN202010142713.7A CN202010142713A CN111211015A CN 111211015 A CN111211015 A CN 111211015A CN 202010142713 A CN202010142713 A CN 202010142713A CN 111211015 A CN111211015 A CN 111211015A
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- 230000007246 mechanism Effects 0.000 claims abstract description 101
- 230000005540 biological transmission Effects 0.000 claims abstract description 55
- 239000002184 metal Substances 0.000 claims description 28
- 238000009825 accumulation Methods 0.000 claims description 21
- 230000013011 mating Effects 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
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Abstract
The invention relates to the technical field of circuit breakers, in particular to a quick closing circuit breaker and a circuit breaker group, wherein the circuit breaker comprises an outer shell, a handle mechanism, a tripping transmission mechanism, a magnetic tripping mechanism and a thermal tripping mechanism; the outer shell comprises a supporting seat and a cover plate, the cover plate is arranged on the supporting seat, the handle mechanism is positioned at the upper part of the supporting seat, and the handle mechanism is used for manually switching on and off the breaker; the tripping transmission mechanism is positioned at the left upper part of the base and is matched with the handle mechanism through a U-shaped transmission rod to realize tripping and buckling; the magnetic tripping mechanism is arranged in the supporting seat and is positioned below the handle mechanism; the thermal tripping mechanism is arranged on the supporting seat and is positioned at the left lower part of the magnetic tripping mechanism; the bottom contact point of the tripping transmission mechanism is positioned between the magnetic tripping mechanism and the thermal tripping mechanism. The advantage of this patent is that the realization holds power, promotes combined floodgate efficiency to promote the combined floodgate synchronism of a plurality of circuit breakers, promote the power consumption safety.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a quick closing circuit breaker and a circuit breaker group.
Background
The existing miniature circuit breaker generally has short circuit and overload protection functions, and once short circuit or overload occurs, the circuit breaker will trip, for example, a trip indicating device for the circuit breaker and the circuit breaker disclosed in the chinese utility model patent with publication number CN203456394U publication No. 2014.02.26. The trip indicating device comprises: the magnetic tripping connecting rod is rotatably fixed on a shaft of a tripping actuating mechanism of the circuit breaker; a first trip indicator having a tab and having a first fault indication indicia area on a front surface thereof that is exposable through a first window opening in a housing of the circuit breaker; and a second trip indicator disposed alongside the first trip indicator, having a projection, and having a second fault indication indicia area on a front surface thereof that is exposable through a second window open in a housing of the circuit breaker. When the circuit breaker is magnetically tripped, the first fault indication mark area and the second fault indication mark area are exposed, and when the circuit breaker is thermally tripped, only the first fault indication mark area is exposed, and the second fault indication mark area is not exposed. According to the present invention, a short-circuit fault, an overload fault, and an artificial disconnection can be clearly indicated.
A quick switching-on circuit breaker comprises an outer shell, a tripping transmission assembly, a magnetic tripper, a thermal tripper and a handle assembly; the shell comprises a base and a cover plate, the cover plate is arranged on the base, the handle assembly is positioned on the upper portion of the base, and the handle assembly is used for manually switching on and off the breaker; the tripping transmission assembly is positioned at the left upper part of the base and is matched with the handle assembly through a transmission rod to realize tripping and buckling; the magnetic release is arranged in the base and is positioned below the handle assembly; the thermal release is arranged on the base and is positioned at the left lower part of the magnetic release; the bottom contact point of the tripping transmission assembly is positioned between the magnetic tripper and the thermal tripper; the handle assembly comprises a handle rotating part and a handle closing force storage part, and the closing force storage part is arranged on the handle.
At present, the existing circuit breaker can not realize the force accumulation when moving from an opening state to a closing state, so that the closing efficiency is relatively slow in the closing process, and the closing synchronization of two-phase, three-phase and four-phase circuit breakers is different due to the incapability of accumulating force when a plurality of circuit breakers are used in a combined mode, so that the closing synchronization is influenced, and the electricity utilization safety problem is easy to occur.
Disclosure of Invention
The invention aims to solve the problem of switching-on of the existing circuit breakers, and provides a quick switching-on circuit breaker which realizes power storage by matching a power storage mating piece of a moving contact with a power storage buckle, improves switching-on efficiency so as to realize quick switching-on, improves synchronism in the switching-on process of a plurality of circuit breakers, and improves power utilization safety.
For the purpose of the invention, the following technical scheme is adopted for realizing the purpose:
a rapid switching-on circuit breaker comprises an outer shell, a handle mechanism, a tripping transmission mechanism, a magnetic tripping mechanism and a thermal tripping mechanism; the outer shell comprises a supporting seat and a cover plate, the cover plate is arranged on the supporting seat, the handle mechanism is positioned at the upper part of the supporting seat, and the handle mechanism is used for manually switching on and off the breaker; the tripping transmission mechanism is positioned at the left upper part of the base and is matched with the handle mechanism through a U-shaped transmission rod to realize tripping and buckling; the magnetic tripping mechanism is arranged in the supporting seat and is positioned below the handle mechanism; the thermal tripping mechanism is arranged on the supporting seat and is positioned at the left lower part of the magnetic tripping mechanism; the bottom contact point of the tripping transmission mechanism is positioned between the magnetic tripping mechanism and the thermal tripping mechanism; the tripping transmission mechanism comprises a contact support, the contact support is sleeved on the supporting seat through a touch rotating shaft, an arc-shaped force release part is arranged on the right side of the upper part of the contact support, a transmission matching groove is arranged in the left-right direction of the middle part of the lower side of the contact support, a closing force storage assembly is arranged in the transmission matching groove, and the closing force storage assembly comprises a force storage buckle and a moving contact force storage matching piece; the lower part of the power storage buckle is positioned in the transmission matching groove, the lower part of the power storage buckle is hinged with the lower part of the contact support through a transmission hinge shaft, a torsion spring matching groove is arranged on the front side of the middle part of the contact support, a power storage matching torsion spring is arranged in the torsion spring matching groove, the power storage matching torsion spring is sleeved on the touch rotating shaft, a torsion spring through hole is formed in the power storage buckle, one end of the power storage matching torsion spring penetrates through the lower part of the contact support and is positioned in the torsion spring through hole, and the lower part of the power storage matching piece of the moving contact is hinged on the supporting seat through a power storage part; the left side of the middle part of the power storage matching piece of the moving contact is provided with a power storage piece clamping block, the right side of the upper part of the power storage clamping buckle is provided with a power storage piece matching clamping opening, a power storage matching torsion spring is driven to press towards the power storage clamping buckle through rotation of the contact support, the power storage piece matching clamping opening is meshed with the power storage piece clamping block to store power of the power storage matching torsion spring, the meshed part is a power storage position, the contact support continues to rotate, the arc-shaped power discharge part is made to be in contact with the upper part of the power storage matching piece of the moving contact, the contact point is a power discharge position, the arc-shaped power discharge part continues to push against the power storage matching piece of the moving contact until the power storage piece matching clamping opening is separated from the power storage piece clamping block, and the.
Preferably, a first movable contact is arranged between the front part of the power storage buckle and the contact support, and a second movable contact is arranged between the rear side of the power storage buckle and the contact support.
Preferably, the handle mechanism comprises a handle and a handle torsion spring; the handle passes through the handle torsional spring setting on the supporting seat, and the handle middle part is provided with handle pivot hole, and the handle right side is provided with first transfer line mating holes, and the U type transfer line left part inserts to first transfer line mating holes.
Preferably, the tripping transmission mechanism further comprises a pulley and a jump buckle; arc cooperation through-hole is provided with to contact carrier upper portion fore-and-aft direction, and the upside middle part left and right sides direction of contact carrier is provided with pulley cooperation groove, and the pulley passes through the pulley pin setting in pulley cooperation groove, is provided with second transfer line mating holes on the pulley, and U type transfer line right part passes arc cooperation through-hole and inserts to second transfer line mating holes, jumps to detain the upper portion cover and establish in touching the pivot, and is located pulley cooperation groove, jumps to detain lower part right side and is provided with the arc wall, and the contact carrier lower part is located the arc wall.
Preferably, a touch head torsion spring is arranged between the middle part of the contact support and the touch rotating shaft, and a jump buckle torsion spring is arranged between the jump buckle and the touch rotating shaft.
Preferably, the magnetic trip mechanism comprises a coil support, a coil sleeve, a coil and a coil contact; the coil support sets up on the supporting seat, and the coil sleeve transversely sets up on the coil support, and the coil winding is on the coil sleeve, and the coil contact passes through the coil connecting plate and sets up in the right part of coil support, and the coil contact cooperatees with two moving contacts.
Preferably, the thermal tripping mechanism comprises a first metal plate and a second metal plate, and a metal plate matching block is hinged to the supporting seat on the right side of the upper part of the second metal plate; the middle part of the metal plate matching block is provided with a tripping connecting rod hole; a connecting lug is arranged on the right side of the lower part of the jump buckle, the connecting lug is connected with the tripping connecting rod hole through a tripping connecting rod, an arc extinguisher is also arranged in the supporting seat below the magnetic tripping mechanism, and the arc extinguisher comprises a grid plate partition plate and a plurality of arc extinguishing grid plates; the arc extinguishing grid plates are longitudinally and regularly arranged on the grid plate partition plate.
Preferably, the arc extinguishing grid sheet positioned at the top is connected with the magnetic tripping mechanism through the upper arc striking sheet; the arc extinguishing grid sheet positioned at the bottom is connected with the thermal tripping mechanism through the lower arc striking sheet.
Preferably, the left side and the right side of the supporting seat are both provided with a lug post group.
A breaker group comprises a plurality of quick closing breakers and a handle rotating shaft; the plurality of rapid closing circuit breakers are combined in series by inserting the handle rotating shaft into the handle rotating shaft hole.
Adopt above-mentioned technical scheme's a swift combined floodgate circuit breaker, this circuit breaker holds power the fitting piece through holding power buckle and moving contact and cooperatees, make the handle rotate half the time, two moving contacts contact with the coil contact on the magnetic trip mechanism, realize one section power storage time at the combined floodgate in-process, when being convenient for realize the rapid combined floodgate, also when carrying out a plurality of circuit breakers and establishing ties, with two phases, three-phase, the synchronous in-phase time maximum reduction of combined floodgate of four-phase circuit breaker is with the same, further promote the synchronism of combined floodgate, promote when promoting combined floodgate efficiency with the electrical safety.
To sum up, the advantage of this patent is that the realization holds power, promotes combined floodgate efficiency to promote the combined floodgate synchronism of a plurality of circuit breakers, promote the power consumption safety.
Drawings
Fig. 1 is a schematic structural diagram of the quick closing circuit breaker of the present invention.
Fig. 2 is a schematic structural diagram of the open state.
Fig. 3 is a schematic structural diagram of a closing state.
FIG. 4 is a schematic diagram of the power storage state.
Fig. 5 is a schematic structural diagram of the tripping transmission mechanism.
Fig. 6 is a cross-sectional view of the trip actuator.
Fig. 7 is a schematic structural diagram of the handle mechanism and the tripping transmission mechanism.
Fig. 8 is an exploded view of the trip actuator.
Fig. 9 is a schematic diagram of the magnetic trip mechanism, thermal trip mechanism and arc extinguisher.
Detailed Description
The following describes a detailed embodiment of the present invention with reference to the accompanying drawings.
As shown in fig. 1, a circuit breaker set includes a plurality of quick closing circuit breakers and a handle rotation shaft; a plurality of rapid switching-on circuit breakers are combined in series by inserting a handle rotating shaft into a handle rotating shaft hole 210, and the circuit breaker comprises an outer shell, a handle mechanism 2, a tripping transmission mechanism 3, a magnetic tripping mechanism 4 and a thermal tripping mechanism 5; the shell body includes supporting seat 1 and apron, and the apron setting is on supporting seat 1, and handle mechanism 2 is located the upper portion of supporting seat 1, and handle mechanism 2 is used for the manual separating brake and the combined floodgate that carry out the circuit breaker. The tripping transmission mechanism 3 is positioned at the left upper part of the base 1, and the tripping transmission mechanism 3 is matched with the handle mechanism 2 through the U-shaped transmission rod 20 to realize tripping and buckling. The magnetic tripping mechanism 4 is arranged in the supporting seat 1 and is positioned below the handle mechanism 2; the thermal tripping mechanism 5 is arranged on the supporting seat 1 and is positioned at the left lower part of the magnetic tripping mechanism 4; the bottom contact point of the tripping transmission mechanism 3 is positioned between the magnetic tripping mechanism 4 and the thermal tripping mechanism 5, the left side and the right side of the supporting seat 1 are both provided with a lug post group 12, and circuit conduction is better facilitated through the lug post group 12.
As shown in fig. 1 and 7, the handle mechanism 2 includes a handle 21 and a handle torsion spring; the handle 21 is arranged on the supporting seat 1 through a handle torsion spring, and the handle is switched on and switched off through the handle torsion spring. Handle 21 right side is provided with first transfer line mating holes 211, and U type transfer line 20 left part inserts to first transfer line mating holes 211 in, be convenient for better cooperate with dropout drive mechanism 3 through U type transfer line 20 and first transfer line patchhole 211, promote the transmission effect.
As shown in fig. 1 to 8, the trip transmission mechanism 3 includes a contact holder 31, a pulley 32, and a trip 33; the middle part of the contact support 31 is sleeved on the support base 1 through the touch rotating shaft 310, a touch head torsion spring 3101 is arranged between the middle part of the contact support 31 and the touch rotating shaft 310, and the contact support 31 rotates through the touch rotating shaft 310 and the touch head torsion spring 3101. The contact holder 31 is provided with an arc-shaped engaging through hole 311 in the front-rear direction at the upper portion thereof, a pulley engaging groove 312 is provided in the left-right direction at the upper middle portion of the contact holder 31, the pulley 32 is disposed in the pulley engaging groove 312 by means of a pulley pin, and the pulley 32 rotates in the pulley engaging groove 312. The pulley 32 is provided with a second transmission rod matching hole 321, the right portion of the U-shaped transmission rod 20 penetrates through the arc-shaped matching through hole 311 and is inserted into the second transmission rod matching hole 321, and the handle 21 rotates to drive one end of the U-shaped transmission rod 20 to move, so that the other end of the U-shaped transmission rod 20 is driven to drive the contact support 31 and the pulley 32 to rotate, better rotating matching is achieved, and the switching-on efficiency is convenient to improve. The upper part of the jump buckle 33 is sleeved on the touch rotating shaft 310, a jump buckle torsional spring 3102 is arranged between the jump buckle 33 and the touch rotating shaft 310, and the jump buckle torsional spring 3102 realizes the rotation matching. The lower right side of the jump buckle 33 is provided with an arc-shaped groove 331, the lower part of the contact support 31 is positioned in the arc-shaped groove 331, and the contact support 31 rotates to drive the jump buckle 33 to rotate simultaneously, so that the jump buckle is better matched with the thermal tripping mechanism 5. An arc-shaped force releasing part 315 is arranged on the right side of the upper part of the contact support 31, a transmission matching groove 313 is arranged in the left-right direction of the middle part of the lower side of the contact support 31, a closing force accumulation component is arranged in the transmission matching groove 313, and the closing force accumulation component comprises a force accumulation buckle 34 and a moving contact force accumulation matching part 11; the upper part of the power storage buckle 34 is in a small arc shape, the lower part of the power storage buckle 34 is in a large arc shape, the lower part of the power storage buckle 34 is positioned in the transmission matching groove 313, and the lower part of the power storage buckle 34 is hinged with the lower part of the contact support 31 through the transmission hinge shaft 340. A first moving contact 341 is arranged between the front part of the power accumulating buckle 34 and the contact support 31, a second moving contact 3411 is arranged between the rear side of the power accumulating buckle 34 and the contact support 31, and the first moving contact 341 and the second moving contact 3411 rotate to contact with the magnetic tripping mechanism 4 to realize closing. A torsion spring matching groove 314 is formed in the front side of the middle of the contact support 31, a power storage buckle torsion spring 3103 is arranged in the torsion spring matching groove 314, the power storage buckle torsion spring 3103 is sleeved on the touch rotating shaft 310, a torsion spring through hole 342 is formed in the power storage buckle 34, one end of the power storage buckle torsion spring 3103 penetrates through the lower portion of the contact support 31 and is positioned in the torsion spring through hole 342, the section of the movable contact power storage matching piece 11 is arc-shaped, and the lower portion of the movable contact power storage matching piece 11 is hinged to the support seat 1 through a power storage torsion spring 111 and is positioned on the right side; a power storage part clamping block 112 is arranged on the left side of the middle part of the movable contact power storage matching piece 11, a power storage part matching clamping opening 343 is arranged on the right side of the upper part of the power storage buckle 34, a power storage part matching torsion spring 3103 is driven to press towards the power storage buckle 34 through the rotation of the contact support 31, the power storage part matching clamping opening 343 and the power storage part clamping block 112 are meshed to store the power B, the meshed part B is a power storage position, the contact support 31 is continuously rotated, the arc-shaped power discharge part 315 is contacted with the upper part of the movable contact power storage matching piece 11, the contact point is a power discharge position A, the arc-shaped power discharge part 315 is continuously pushed towards the movable contact power storage matching piece 11 until the power storage part matching clamping opening 343 and the power storage part clamping block 112 are separated to discharge the power, and the movable contact on the power storage buckle 34 is contacted with the magnetic tripping.
As shown in fig. 1 to 9, the magnetic trip mechanism 4 includes a coil holder 41, a coil sleeve 42, a coil 43, and a coil contact 44; the coil support 41 is arranged on the support base 1, the coil sleeve 42 is transversely arranged on the coil support 41, the coil 43 is wound on the coil sleeve 42, the coil contact 44 is arranged at the right part of the coil support 41 through a coil connecting plate, the coil contact 44 is matched with the two movable contacts 341, the coil contact 44 is contacted with the movable contacts 341 to realize closing, and the magnetic tripping mechanism 4 is used for further and effectively performing closing and closing control.
The thermal trip mechanism 5 comprises a first metal plate 51 and a second metal plate 52, the lower part of the first metal plate 51 is connected with the lower part of the second metal plate 52, the first metal plate 51 and the second metal plate 52 are in a V shape, installation controls are further saved through the V-shaped arrangement, and meanwhile thermal trip control is better performed. The supporting base 1 is hinged to a metal plate matching block 53 on the right side of the upper portion of the second metal plate 52, and the second metal plate 52 is conveniently extruded through the metal plate matching block 53, so that the movable contact 341 is better contacted with the first metal plate 51. The middle part of the metal plate matching block 53 is provided with a tripping connecting rod hole 531; the connection lug 332 is arranged on the right side of the lower portion of the jumper 33, the connection lug 332 is connected with the tripping connection rod hole 531 through the tripping connection rod 6, the first metal plate 51 is pressed to the moving contact 341 conveniently and further effectively while the transmission fit is improved through the tripping connection rod 6, the contact is more sufficient, and better tripping is facilitated.
An arc extinguisher 7 is also arranged in the supporting seat 1 below the magnetic tripping mechanism 4, and the arc extinguisher 7 comprises a grid partition plate 71 and a plurality of arc extinguishing grids 72; the arc extinguishing grid pieces 72 are longitudinally and regularly arranged on the grid piece partition plate 71, and the arc extinguishing grid pieces 72 positioned at the top are connected with the coil contact 44 of the magnetic tripping mechanism 4 through the upper arc striking pieces 73; the arc chute 72 at the bottom is engaged with the first metal plate 51 of the thermal trip mechanism 5 through the lower arc striking plate 74. The magnetic tripping mechanism 4 and the thermal tripping mechanism 5 are conveniently and better matched, so that rapid switching-on and switching-off are better realized, and the use safety is further improved.
As shown in fig. 2 to 4, during operation, the handle 21 drives the contact support 31 and the pulley 32 to rotate through the U-shaped transmission rod 20, so as to drive the trip buckle 33 and the power accumulating buckle 34 to rotate, and cause the power accumulating part matching bayonet 343 of the power accumulating buckle 34 to press against the power accumulating part clamping block 112 of the movable contact power accumulating mating part 11 to be engaged, the engaged position is a movable contact power accumulating position B, a reaction force is applied to the contact support 31 through the power accumulating part torsion spring 111, so as to cause the power accumulating buckle 34 to keep the controllable position motionless, and cause the two movable contacts 341 to contact with the coil contact 44 on the magnetic trip mechanism 4, until the arc-shaped power releasing part 315 on the contact support 31 reaches the movable contact power releasing position a to contact with the movable contact power mating part 11, and continuously pushes against the movable contact power mating part 11 to separate the power accumulating buckle 34 from the movable contact mating part 11, thereby achieving the purpose of rapid switching on, and when having one section to hold power between power buckle 34 and the moving contact power of holding mating member 11, when advancing a plurality of circuit breakers and establish ties like this, be convenient for with the synchronous in same time maximum reduction of the combined floodgate of two-phase, three-phase, four-phase circuit breaker with the same time, promote the synchronism of combined floodgate simultaneously, prevent to appear the power consumption safety problem.
This circuit breaker is through holding power buckle 34 and moving contact power of holding mating parts 11 and cooperateing, make the handle rotate half the time, two moving contacts 341 contact with the coil contact 44 on the magnetic trip mechanism 4, realize one section power of holding time at the combined floodgate in-process, when being convenient for realize quick combined floodgate, also when carrying out a plurality of circuit breakers and establishing ties, with two phases, three phases, the synchronous in-phase time at the same time maximum reduction of combined floodgate of four-phase circuit breaker is with the same, further promote the synchronism of combined floodgate, promote when promoting combined floodgate efficiency with electrical safety.
To sum up, the advantage of this patent is that the realization holds power, promotes combined floodgate efficiency to promote the combined floodgate synchronism of a plurality of circuit breakers, promote the power consumption safety.
Claims (10)
1. A rapid switching-on circuit breaker comprises an outer shell, a handle mechanism (2), a tripping transmission mechanism (3), a magnetic tripping mechanism (4) and a thermal tripping mechanism (5); the outer shell comprises a supporting seat (1) and a cover plate, the cover plate is arranged on the supporting seat (1), the handle mechanism (2) is located on the upper portion of the supporting seat (1), and the handle mechanism (2) is used for manually switching on and off the breaker; the tripping transmission mechanism (3) is positioned at the left upper part of the base (1), and the tripping transmission mechanism (3) is matched with the handle mechanism (2) through a U-shaped transmission rod (20) to realize tripping and buckling; the magnetic tripping mechanism (4) is arranged in the supporting seat (1) and is positioned below the handle mechanism (2); the thermal tripping mechanism (5) is arranged on the supporting seat (1) and is positioned at the left lower part of the magnetic tripping mechanism (4); the bottom contact point of the tripping transmission mechanism (3) is positioned between the magnetic tripping mechanism (4) and the thermal tripping mechanism (5); the tripping device is characterized in that the tripping transmission mechanism (3) comprises a contact support (31), the contact support (31) is sleeved on the support seat (1) through a touch rotating shaft (310), an arc-shaped force release part (315) is arranged on the right side of the upper part of the contact support (31), a transmission matching groove (313) is arranged in the left-right direction of the middle part of the lower side of the contact support (31), a closing force storage component is arranged in the transmission matching groove (313), and the closing force storage component comprises a force storage buckle (34) and a moving contact force storage matching piece (11); the lower part of the power accumulating buckle (34) is positioned in the transmission matching groove (313), the lower part of the power accumulating buckle (34) is hinged with the lower part of the contact support (31) through a transmission hinged shaft (340), the front side of the middle part of the contact support (31) is provided with a torsion spring matching groove (314), a power accumulating matching torsion spring (3103) is arranged in the torsion spring matching groove (314), the power accumulating matching torsion spring (3103) is sleeved on the touch rotating shaft (310), a torsion spring through hole (342) is formed in the power accumulating buckle (34), one end of the power accumulating matching torsion spring (3103) penetrates through the lower part of the contact support (31) and is positioned in the torsion spring through hole (342), and the lower part of the moving contact power accumulating matching piece (11) is hinged on the support seat (1) through a power accumulating part torsion spring (111) and is positioned; a force accumulation piece clamping block (112) is arranged on the left side of the middle part of the movable contact force accumulation mating piece (11), a force accumulation piece mating clamping opening (343) is arranged on the right side of the upper part of the force accumulation clamping buckle (34), the contact support (31) rotates to drive the power accumulation matching torsion spring (3103) to press towards the power accumulation buckle (34), so that the power accumulation part matching bayonet (343) is meshed with the power accumulation part clamping block (112) to enable the power accumulation matching torsion spring (3103) to accumulate power, the meshed part is a power accumulation position (B), then the contact support (31) continues to rotate to enable the arc power discharge part (315) to be contacted with the upper part of the movable contact power accumulation matching part (11), the contact point is a power discharge position (A), and the arc-shaped force release part (315) is continuously pushed to the power accumulation matching piece (11) of the moving contact until the power accumulation piece matching bayonet (343) is separated from the power accumulation piece clamping block (112), and the power accumulation piece is matched with the force release of the torsion spring (3103) to enable the moving contact on the power accumulation buckle (34) to be contacted with the magnetic tripping mechanism (4) to realize switching on.
2. A rapid closing circuit breaker according to claim 1, characterized in that a first movable contact (341) is arranged between the front part of the power accumulating buckle (34) and the contact support (31), and a second movable contact (3411) is arranged between the rear side of the power accumulating buckle (34) and the contact support (31).
3. A rapid closing circuit breaker according to claim 1, characterized in that the handle mechanism (2) comprises a handle (21) and a handle torsion spring; the handle (21) is arranged on the supporting seat (1) through a handle torsion spring, a handle rotating shaft hole (210) is formed in the middle of the handle (21), a first transmission rod matching hole (211) is formed in the right side of the handle (21), and the left portion of the U-shaped transmission rod (20) is inserted into the first transmission rod matching hole (211).
4. A rapid closing circuit breaker according to claim 1, characterized in that the trip transmission mechanism (3) further comprises a pulley (32) and a trip (33); arc-shaped matching through holes (311) are formed in the front-back direction of the upper portion of the contact support (31), pulley matching grooves (312) are formed in the left-right direction of the middle portion of the upper side of the contact support (31), pulleys (32) are arranged in the pulley matching grooves (312) through pulley pins, second transmission rod matching holes (321) are formed in the pulleys (32), the right portion of the U-shaped transmission rod (20) penetrates through the arc-shaped matching through holes (311) to be inserted into the second transmission rod matching holes (321), the upper portion of the jump buckle (33) is sleeved on the touch rotating shaft (310) and located in the pulley matching grooves (312), arc-shaped grooves (331) are formed in the right side of the lower portion of the jump buckle (33), and the lower portion of the contact support (.
5. The quick closing circuit breaker according to claim 1, wherein a contact torsion spring (3101) is disposed between the middle portion of the contact bracket (31) and the contact rotating shaft (310), and a trip torsion spring (3102) is disposed between the trip buckle (33) and the contact rotating shaft (310).
6. A rapid closing circuit breaker according to claim 1, characterized in that the magnetic trip mechanism (4) comprises a coil support (41), a coil sleeve (42), a coil (43) and a coil contact (44); the coil support (41) is arranged on the support seat (1), the coil sleeve (42) is transversely arranged on the coil support (41), the coil (43) is wound on the coil sleeve (42), the coil contact (44) is arranged on the right part of the coil support (41) through the coil connecting plate, and the coil contact (44) is matched with the first moving contact (341) and the second moving contact (3411).
7. The quick closing circuit breaker according to claim 1, wherein the thermal trip mechanism (5) comprises a first metal plate (51) and a second metal plate (52), the lower part of the first metal plate (51) is connected with the lower part of the second metal plate (52), the first metal plate (51) and the second metal plate (52) are in a V shape, and a metal plate matching block (53) is hinged on the supporting base (1) at the right side of the upper part of the second metal plate (52); the middle part of the metal plate matching block (53) is provided with a tripping connecting rod hole (531); the right side of the lower part of the jump buckle (33) is provided with a connecting lug (332), and the connecting lug (332) is connected with the tripping connecting rod hole (531) through a tripping connecting rod (6).
8. The quick closing circuit breaker according to claim 1, wherein an arc extinguisher (7) is further arranged in the supporting seat (1) below the magnetic tripping mechanism (4), and the arc extinguisher (7) comprises a grid partition plate (71) and a plurality of arc extinguishing grids (72); the arc extinguishing grid pieces (72) are longitudinally and regularly arranged on the grid piece partition plate (71), and the arc extinguishing grid pieces (72) positioned at the top are connected with the magnetic tripping mechanism (4) through the upper arc striking pieces (73); the arc extinguishing grid piece (72) positioned at the bottom is connected with the thermal tripping mechanism (5) through a lower arc striking piece (74).
9. The quick closing circuit breaker according to claim 1, wherein the left and right sides of the supporting base (1) are provided with a terminal post group (12).
10. A circuit breaker group, comprising a plurality of quick closing circuit breakers according to any one of claims 1 to 9 and a handle spindle; the plurality of rapid switching-on circuit breakers are combined in series by inserting the handle rotating shaft into the handle rotating shaft hole (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010142713.7A CN111211015A (en) | 2020-03-04 | 2020-03-04 | Quick closing circuit breaker and circuit breaker group |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010142713.7A CN111211015A (en) | 2020-03-04 | 2020-03-04 | Quick closing circuit breaker and circuit breaker group |
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| CN111211015A true CN111211015A (en) | 2020-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010142713.7A Pending CN111211015A (en) | 2020-03-04 | 2020-03-04 | Quick closing circuit breaker and circuit breaker group |
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| CN (1) | CN111211015A (en) |
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| WO2022135045A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江奥来电器有限公司 | Electric leakage circuit breaker |
| CN115295367A (en) * | 2022-06-28 | 2022-11-04 | 长园电力技术有限公司 | Permanent magnetism breaker hand divides mechanism and looped netowrk cabinet |
| TWI821036B (en) * | 2022-11-22 | 2023-11-01 | 士林電機廠股份有限公司 | Miniature circuit breaker dual independent circuit mechanism |
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