CN112490090A - Moving contact mechanism of circuit breaker - Google Patents
Moving contact mechanism of circuit breaker Download PDFInfo
- Publication number
- CN112490090A CN112490090A CN202011568391.9A CN202011568391A CN112490090A CN 112490090 A CN112490090 A CN 112490090A CN 202011568391 A CN202011568391 A CN 202011568391A CN 112490090 A CN112490090 A CN 112490090A
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- moving contact
- circuit breaker
- column
- boss
- torsion spring
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- 230000007246 mechanism Effects 0.000 title claims abstract description 16
- 238000005452 bending Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 10
- 230000008094 contradictory effect Effects 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 210000003205 muscle Anatomy 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
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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
- H01H71/1054—Means for avoiding unauthorised release
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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
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
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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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/121—Protection of release mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Breakers (AREA)
Abstract
The invention relates to a breaker, in particular to a moving contact mechanism of the breaker in the breaker; the invention adopts the following technical scheme: a moving contact mechanism of a circuit breaker is characterized in that: the novel circuit breaker moving contact mechanism comprises a mounting seat, a positioning block, an L-pole moving contact, a boss and a lock catch, wherein the mounting column is arranged on the first side of the moving contact mounting seat, the boss is arranged below the chute, the positioning block is arranged below the boss, an arc-shaped convex column is arranged at the bottom of the mounting column on the first side of the moving contact mounting seat around one side of the mounting column, a convex rib is arranged on the peripheral plane of the mounting column on the first side of the moving contact mounting seat, a mounting through hole is formed in the lock catch, the mounting through hole of the lock catch is sleeved on the mounting column on the first side and forms rotating fit with the arc-shaped convex column, the L-pole moving contact is sleeved on the mounting column on the first side, the side face of the L-pole moving contact is abutted against or pressed close to the end.
Description
Technical Field
The invention relates to a breaker, in particular to a moving contact mechanism of the breaker in the breaker.
Background
The moving contact mechanism of the existing circuit breaker is unreasonable in structure, easy to cause blocking phenomenon, unreasonable in installation of the N-pole moving contact and the L-pole moving contact, easy to lag and the like in tripping, and easy to cause adhesion or friction force increasing and the like between the lock catch and the mounting seat.
Disclosure of Invention
The invention overcomes the problems in the prior art and provides a novel moving contact mechanism of the circuit breaker, which has a reasonable structure and works stably.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a moving contact mechanism of circuit breaker, is provided with the erection column including moving contact mount pad, hasp, L utmost point moving contact and N utmost point moving contact, the both sides of moving contact mount pad just are located same axis, and L utmost point moving contact and N utmost point moving contact move about respectively and set up on the erection column of moving contact mount pad both sides, one side of moving contact mount pad installation L utmost point moving contact is first side, and one side of installation N utmost point moving contact is second side, its characterized in that: a sliding groove is arranged above the first side of the moving contact mounting seat, the sliding groove is provided with a bending part and a straight part, a butting arm is arranged on the lock catch, the butting arm and the sliding groove are matched to lock or release a handle connecting rod of the circuit breaker, a boss is arranged below the sliding groove, a positioning block is arranged below the boss, an arc-shaped convex column is arranged at the bottom of the mounting column at the first side of the moving contact mounting seat around the bottom of the mounting column, a convex rib is arranged on the plane of the periphery of the mounting column at the first side of the moving contact mounting seat, a mounting through hole is arranged on the lock catch, the mounting through hole of the lock catch is sleeved on the mounting column at the first side and forms a rotating fit with the arc-shaped convex column, an L-pole moving contact is sleeved on the mounting column at the first side, the side surface of the L-pole moving contact is butted with or pressed close to the end part of the, a limit groove is formed between the side face of the first side of the stop block and the moving contact mounting seat, a first torsion spring is arranged between the L-pole moving contact and the moving contact mounting seat, the first torsion spring is also sleeved on the mounting column of the first side, the first torsion arm of the first torsion spring is abutted in the limit groove below the boss, the second torsion arm of the first torsion spring is abutted on the first bayonet of the L-pole moving contact, the end wall of the second torsion arm of the first torsion spring is provided with a bending part, the bending part is inserted into the cavity below the first bayonet, a positioning sheet is arranged on the L-pole moving contact and is positioned between the positioning block and the boss of the moving contact mounting seat, and the abutting of the positioning sheet and the positioning block or the boss forms the limit of the rotation angle of the L.
By adopting the scheme, the purpose of arranging the sliding chute is to connect with a handle connecting rod in the circuit breaker, the sliding chute is provided with a bending part and a straight part, so that one end of the handle connecting rod can be positioned by matching with the abutting arm of the lock catch, and the handle connecting rod is arranged in the bending part or slides into the straight part; the lock catch is rotationally matched with the arc-shaped convex column, a gap can be formed, dust can enter the gap, the problems of adhesion and friction increasing and blocking caused by the influence of the dust can be avoided, and the friction is reduced by the arrangement of the convex ribs; the L utmost point moving contact adopts above-mentioned mode installation very convenient, and two arms of first torsional spring are very firm fixing on the mount pad in addition, and the rotation range of injecing the L utmost point moving contact that can be fine, and the L utmost point moving contact is inseparabler with the static contact when closing a floodgate simultaneously, can rotate in advance under the circumstances of heavy current, does benefit to quick separating brake.
The invention further provides that: a connecting column is arranged above the mounting column at the second side of the moving contact mounting seat, a convex edge is arranged around the periphery of the connecting column, an abutting surface and an abutting boss are respectively arranged on the convex edge, a third torsion spring is sleeved on the connecting column, a first torsion arm of the third torsion spring abuts against the abutting surface, a second torsion arm of the third torsion spring can abut against the abutting boss, a second stop block is arranged below the abutting boss, a positioning notch is formed between the second stop block and the side surface of the second side of the moving contact mounting seat, a second bayonet is arranged on the N-pole moving contact, a second concave cavity is arranged on the second side of the moving contact mounting seat and corresponds to the second bayonet, the N-pole moving contact is sleeved on the mounting column at the second side of the moving contact mounting seat, a second torsion spring is arranged between the N-pole moving contact and the moving contact mounting seat, and the second torsion spring is also sleeved on the mounting column at the second side, the first torque arm of second torsional spring is contradicted on the location notch, the second torque arm of second torsional spring is contradicted on the second bayonet socket of N utmost point moving contact, and the second torque arm tip of second torsional spring inserts in the second cavity after buckling, be provided with the location lug on the second side of moving contact mount pad, on the N utmost point moving contact and lie in and be provided with N limit bit piece between location lug and the conflict boss, N limit bit piece constitutes the turned angle's of N utmost point moving contact spacing with the conflict of location lug or conflict boss.
Through adopting above-mentioned scheme, the effect of N utmost point moving contact is the same with L utmost point moving contact, the spliced pole adopts above-mentioned mode to set up in addition, its periphery is provided with the protection spliced pole that the chimb can be fine, even the spliced pole has disconnected the effect that does not influence the third torsional spring yet, conflict boss setting on the chimb can make the second conflict arm of third torsional spring conflict on the boss of contradicting temporarily, can realize mechanized installation on the lug on the base through the hypotenuse card on the base when circuit breaker base installation.
The invention further provides that: the first torsion arm of the first torsion spring is arranged at a position, close to the stop, of the limiting groove, the width of a space, located in the first torsion arm of the first torsion spring, of the limiting groove is larger than the thickness of the L-pole moving contact, the L-pole moving contact rotates a space, located in the first torsion arm, of the limiting groove, the side edge of the positioning piece of the L-pole moving contact can be inserted into the space, located in the first torsion arm of the limiting groove, the first torsion arm of the second torsion spring is arranged at a position, close to the stop, of the positioning notch, the width of the space, located in the first torsion arm of the second torsion spring, of the positioning notch is larger than the thickness.
Through adopting above-mentioned scheme, wherein the spacing groove adopts above-mentioned scheme setting with the first torsion arm of first torsional spring, can guarantee that the home range of spacer is not influenced, and the spacer rotates and also can not exert an influence to the torsional spring in addition, mutually noninterfere between the two, and the notch and second torsional spring and stopper are so also to be used to the principle location.
The invention further provides that: the utility model discloses a breaker, including moving contact mount pad, hasp, tripper ejector pin, the last spacer that just is located the L utmost point moving contact of moving contact mount pad and N limit position piece between be provided with protruding muscle or recess on global, the below of hasp is provided with the lug, corresponds the department with the tripper ejector pin of circuit breaker on the hasp and is provided with the arc face of contradicting, the top that just is located the erection column on the hasp is provided with the inclined plane of contradicting.
By adopting the scheme, the circumferential surface of the moving contact mounting seat is provided with the convex ribs or the grooves, so that the creepage distance is increased, and the positioning sheets and the limiting blocks are relatively close to each other at the position, so that the product cannot be easily burnt; the lug is arranged for being pulled by the bimetallic pull rod, the arc-shaped abutting surface is arranged to facilitate the push of the tripper ejector rod, and the abutting inclined surface is arranged to facilitate the push of the lock catch ejector rod to the lock catch.
The final setting of the invention is as follows: the periphery of spout bottom is provided with the recess, the boss is gone up the side and is set up with the downside of spout flexion an organic whole and constitute and to support the pressure face, and the circuit breaker is combined floodgate back, and the link of circuit breaker handle connecting rod is contradicted on supporting the pressure face, and the contained angle that the thrust direction of the link of circuit breaker handle connecting rod and support the thrust direction between the link of pressing the face to the handle connecting rod is less than 180 degrees, the top that the moving contact mount pad is located the spout is provided with divide-shut brake indicator board.
By adopting the scheme, the safety of the product is improved, dust and the like can enter the groove without influencing the movement of the handle connecting rod, the limitation of the upper abutting surface is to meet the requirement that the abutting surface stably abuts against the handle connecting rod during closing and ensure that the end part of the connecting rod can slide into the straight part of the sliding groove to realize the disconnection of the breaker when the lock catch rotates to separate from the handle connecting rod, and what needs to be described is that; the included angle between the thrust direction of the handle to the connecting end of the handle connecting rod and the thrust direction of the abutting-against surface to the connecting end of the handle connecting rod is smaller than 180 degrees, so that resultant force generated by the two forces is upward, if the upper part of the end part of the handle connecting rod is blocked by the lock catch abutting arm, the end part of the handle connecting rod is arranged in the bent part of the sliding groove and does not move, and if the lock catch abutting arm above the end part of the handle connecting rod leaves, the end part of the handle connecting rod slides into the straight part of the sliding groove under the action of.
The present invention will be further described with reference to the following examples.
Drawings
FIG. 1 is a perspective view of a reflective latch according to an embodiment of the present invention;
FIG. 2 is a perspective view of an embodiment of the present invention reflecting a third torsion spring;
fig. 3 is a perspective view of a movable contact mounting base according to an embodiment of the present invention;
fig. 4 is a perspective view of a connecting column of a mounting seat of a moving contact according to an embodiment of the present invention;
fig. 5 is a perspective view of the locking device engaged with the movable contact mounting base according to the embodiment of the present invention;
fig. 6 is a structural diagram reflecting the force generation between the handle connecting rod and the sliding groove abutting surface when the circuit breaker is switched on in the embodiment of the invention;
fig. 7 is a schematic force direction diagram of fig. 6.
Detailed Description
As shown in fig. 1-7, a moving contact mechanism of a circuit breaker includes a moving contact mounting base 1, a latch 2, an L-pole moving contact 3 and an N-pole moving contact 4, wherein mounting posts 14 are disposed on two sides of the moving contact mounting base 1 and on the same axis, the L-pole moving contact 3 and the N-pole moving contact 4 are respectively movably disposed on the mounting posts 14 on two sides of the moving contact mounting base 1, here, the mounting base 14 and the moving contact mounting base 1 are integrally disposed, one side of the moving contact mounting base 1 on which the L-pole moving contact 3 is mounted is a first side 11, and one side on which the N-pole moving contact 4 is mounted is a second side 12, in the embodiment of the invention, a sliding slot 111 is disposed above the first side 11 of the moving contact mounting base 1, the sliding slot 111 has a bending portion 1111 and a straight portion 1112, a contact arm 22 is disposed on the latch 2, and the contact arm 22 and the, the handle connecting rod is arranged in the existing circuit breaker and is used for connecting a handle and a moving contact mounting seat, and the detailed description is not needed here, a boss 112 is arranged below a sliding groove 111, a positioning block 113 is arranged below the boss 112, an arc-shaped convex column 114 is arranged at the bottom of a mounting column 14 on a first side 11 of the moving contact mounting seat 1 around one circumference of the mounting column, a convex rib 115 is arranged on the plane of the periphery of the mounting column 14 on the first side 11 of the moving contact mounting seat 1, a mounting through hole 21 is arranged on a lock catch 2, the mounting through hole 21 of the lock catch 2 is sleeved on the mounting column 14 on the first side 11 and forms a rotating fit with the arc-shaped convex column 114, an L-pole moving contact 3 is sleeved on the mounting column 14 on the first side 11, the side surface of the L-pole moving contact 3 is abutted against or pressed close to the end part of the arc-shaped convex column 114, a first bayonet 31 is arranged on, a stop block 1121 is arranged below the boss 112, a limit groove 1122 is formed between the stop block 1121 and the side surface of the first side 11 of the movable contact mounting seat 1, a first torsion spring 5 is arranged between the L-pole movable contact 3 and the movable contact mounting seat 1, the first torsion spring 5 is also sleeved on the mounting column 14 of the first side 11, a first torsion arm of the first torsion spring 5 is abutted in the limit groove 1122 below the boss 112, a second torsion arm of the first torsion spring 5 is abutted on the first bayonet 31 of the L-pole movable contact 3, a bending part is arranged at the end part of the second torsion arm of the first torsion spring 5, the bent portion is inserted into the cavity 15 below the first bayonet 31, so that the first torsion spring 5 is firmly installed, the L-pole moving contact 3 is provided with a positioning piece 32, the positioning piece 32 is located between the positioning block 113 and the boss 112 of the movable contact mounting base 1, and the abutting of the positioning piece 32 and the positioning block 113 or the boss 112 forms the limit of the rotation angle of the L-pole movable contact 3. In the above solution, the chute 111 is provided for connecting with a handle link in the circuit breaker, the chute 111 is provided with a bending portion 1111 and a straight portion 1112, so that one end of the handle link can be positioned by matching with the abutting arm 22 of the latch 2, and the handle link is placed in the bending portion 1111 or slid into the straight portion 1112, wherein when one end of the handle link is placed in the bending portion 1111, the circuit breaker handle is operated, and at this time, the handle link can rotate the movable contact mounting base 1, specifically, the end of the handle link is placed in the bending portion 1111 all the time under the action of the abutting arm 22, and the end of the handle link is the portion inserted into the chute 111, so as to operate the circuit breaker, when the latch 2 moves under an external acting force, the abutting arm 22 of the latch 2 leaves the upper portion of the bending portion 1111 of the chute 111, i.e. loses the abutting on the handle link, and then the acting force of, the moving contact mounting seat 1 rotates to enable the circuit breaker to be tripped; the lock catch 2 is in running fit with the arc-shaped convex column 114, a gap can be formed, dust can enter the gap, the problem that the dust is adhered and is affected by impurities such as dust to increase the friction force and is blocked can be avoided, and the convex rib 115 is arranged to reduce the friction force; the L pole moving contact 3 is very convenient to install by adopting the mode, in addition, two arms of 5 of the first torsion spring are very firmly fixed on the L pole moving contact 3 and the mounting seat 1, the rotating range of the L pole moving contact 3 can be well limited, meanwhile, the L pole moving contact 3 is in closer contact with a static contact when the switch is switched on, and can rotate in advance under the condition of large current, so that the rapid switching-off is facilitated.
In the embodiment of the present invention, a connection column 121 is disposed above the mounting column 14 on the second side 12 of the movable contact mounting seat 1, a convex edge 1211 is disposed around a circumference of the connection column 121, an abutting surface 12111 and an abutting boss 12112 are respectively disposed on the convex edge 1211, a third torsion spring 6 is sleeved on the connection column 121, a first torsion arm of the third torsion spring 6 abuts against the abutting surface 12111, a second torsion arm of the third torsion spring 6 can abut against the abutting boss 12112, a groove can be disposed on the abutting boss 12112, the third torsion spring 6 abuts against the groove, a second stopper 121121 is disposed below the abutting boss 12112, a positioning notch 121122 is formed between the second stopper 121121 and the side surface of the second side 12 of the movable contact mounting seat 1, a second bayonet 42 is disposed on the N-pole movable contact 4, a second cavity 16 is disposed on the second side 12 of the movable contact mounting seat 1 and at a position corresponding to the second bayonet 42, the N-pole moving contact 4 is sleeved on the mounting column 14 of the second side 12 of the moving contact mounting seat 1, a second torsion spring 7 is arranged between the N-pole moving contact 4 and the moving contact mounting seat 1, the second torsion spring 7 is also sleeved on the mounting column 14 of the second side 12 of the moving contact mounting seat 1, a first torsion arm of the second torsion spring 7 abuts against the positioning notch 121122, a second torsion arm of the second torsion spring 7 abuts against a second bayonet 42 of the N-pole moving contact 4, an end portion of the second torsion arm of the second torsion spring 7 is bent and then inserted into the second concave cavity 16, the second side 12 of the moving contact mounting seat 1 is provided with a positioning lug 122, an N-pole limit piece 41 is arranged on the N-pole moving contact 4 and between the positioning lug 122 and the abutting lug 12112, and the abutting of the N-pole limit piece 41 and the positioning lug 122 or abutting lug 12112 constitutes a limit of a rotation angle of the N-pole moving; in the above-mentioned scheme, the effect of N utmost point moving contact 4 is the same basically with L utmost point moving contact, its purpose all is better combined floodgate or separating brake, spliced pole 121 adopts above-mentioned mode to set up in addition, its periphery is provided with protection spliced pole 121 that chimb 1211 can be fine, even spliced pole 121 has disconnected the effect that does not influence third torsional spring 6 yet, conflict boss 12112 setting on the chimb 1211 can make the second conflict arm of third torsional spring 6 conflict on conflict boss 12112 temporarily, its purpose can be through the hypotenuse on the base when the circuit breaker base installation on the lug of base is gone into to the second conflict arm card of torsional spring 6, can realize mechanized installation.
In the embodiment of the present invention, the first torsion arm of the first torsion spring 5 is disposed in the position of the limit groove 1122 close to the stop 1121, the width of the space of the limit groove 1122 in the first torsion arm of the first torsion spring 5 is greater than the thickness of the L-pole movable contact 3, the side edge of the positioning tab 32 of the L-pole movable contact 3, which rotates, can be inserted into the space of the limit groove 1122 in the first torsion arm, the first torsion arm of the second torsion spring 7 is disposed in the position of the positioning notch 121122 close to the stop 121121, the width of the space of the positioning notch 121122 in the first torsion arm of the second torsion spring 7 is greater than the thickness of the N-pole movable contact 4, and the side edge of the limiting block 41 of the N-pole movable contact 4, which rotates, can be inserted; in the above scheme, the limiting groove 1122 and the first torsion arm of the first torsion spring 5 are arranged in the above scheme, so that the moving range of the positioning plate 32 is not affected, and the rotation of the positioning plate 32 does not affect the torsion spring, and the positioning plate and the torsion spring do not interfere with each other, and similarly, the positioning notch 121122, the second torsion spring 7 and the limiting block 41 also have such functions.
In the embodiment of the invention, the convex rib or the groove 17 is arranged on the circumferential surface of the moving contact mounting seat 1 and between the positioning sheet 32 of the L-pole moving contact 3 and the limiting sheet 41 of the N-pole moving contact 4, so that the creepage distance is increased, and the positioning sheet 32 and the limiting sheet 41 are relatively close to each other at the position, so that the product cannot be easily burnt; the below of hasp 2 is provided with flash barrier 23 and lug 24, and the effect of flash barrier 23 is to cut off the electric arc, and the effect of lug 24 is to supply two golden pull rod pulling, and the tripper ejector pin department of corresponding with the circuit breaker on hasp 2 is provided with arc conflict face 25, and arc conflict inclined plane 25 makes things convenient for the hasp ejector pin to push away hasp 2, the top that just is located erection column 14 on hasp 2 is provided with conflict inclined plane 26.
In the embodiment of the present invention, a groove 1113 is disposed at the periphery of the bottom of the sliding slot 111, the groove 1113 is disposed to allow dust, impurities, etc. to enter without affecting the movement of the handle link, the upper side of the boss 112 and the lower side of the curved portion 1111 of the sliding slot 111 are integrally disposed to form a pressing surface 1123, after the circuit breaker is closed, the connecting end of the handle link of the circuit breaker abuts against the pressing surface 1123, an included angle a between a thrust direction F1 of the connecting end of the handle link of the circuit breaker handle and a thrust direction F2 of the connecting end of the handle link of the pressing surface 1123 is smaller than 180 degrees, and the moving contact mounting base 1 is disposed above the sliding slot 11 and is provided with a switching indicator board 13. Through adopting above-mentioned scheme, increase the security of product, wherein the higher authority is to pressing the restriction of face 1123 and is not only to satisfy pressing the face 1123 to the firm support of handle connecting rod when closing a floodgate, also guarantees that the handle connecting rod when the hasp rotates and breaks away from the handle connecting rod, and the straight portion 1112 that the connecting rod tip can slide in spout 111 realizes the circuit breaker disconnection, and what explain here: an included angle between the thrust direction of the handle to the connecting end of the handle connecting rod and the thrust direction of the abutting surface 1123 to the connecting end of the handle connecting rod is smaller than 180 degrees, so that resultant force F3 generated by the two forces is upward, if the upper part of the end part of the handle connecting rod is blocked by the abutting arm 22 of the lock catch 2, the end part of the handle connecting rod is arranged in the bent part 1111 of the sliding groove and is not moved, and if the abutting arm 22 of the lock catch 2 above the end part of the handle connecting rod is separated, the end part of the handle connecting rod slides into the straight part 1112 of the sliding groove under.
Finally, it should be noted that the terms of upper and lower positions and their relative positions as described in this document are illustrated in the accompanying drawing 1 of this document.
Claims (6)
1. The utility model provides a moving contact mechanism of circuit breaker, is provided with the erection column including moving contact mount pad, hasp, L utmost point moving contact and N utmost point moving contact, the both sides of moving contact mount pad just are located same axis, and L utmost point moving contact and N utmost point moving contact move about respectively and set up on the erection column of moving contact mount pad both sides, one side of moving contact mount pad installation L utmost point moving contact is first side, and one side of installation N utmost point moving contact is second side, its characterized in that: a sliding groove is arranged above the first side of the moving contact mounting seat, the sliding groove is provided with a bending part and a straight part, a butting arm is arranged on the lock catch, the butting arm and the sliding groove are matched to lock or release a handle connecting rod of the circuit breaker, a boss is arranged below the sliding groove, a positioning block is arranged below the boss, an arc-shaped convex column is arranged at the bottom of the mounting column at the first side of the moving contact mounting seat around the bottom of the mounting column, a convex rib is arranged on the plane of the periphery of the mounting column at the first side of the moving contact mounting seat, a mounting through hole is arranged on the lock catch, the mounting through hole of the lock catch is sleeved on the mounting column at the first side and forms a rotating fit with the arc-shaped convex column, an L-pole moving contact is sleeved on the mounting column at the first side, the side surface of the L-pole moving contact is butted with or pressed close to the end part of the, a limit groove is formed between the side face of the first side of the stop block and the moving contact mounting seat, a first torsion spring is arranged between the L-pole moving contact and the moving contact mounting seat, the first torsion spring is also sleeved on the mounting column of the first side, the first torsion arm of the first torsion spring is abutted in the limit groove below the boss, the second torsion arm of the first torsion spring is abutted on the first bayonet of the L-pole moving contact, the end wall of the second torsion arm of the first torsion spring is provided with a bending part, the bending part is inserted into the cavity below the first bayonet, a positioning sheet is arranged on the L-pole moving contact and is positioned between the positioning block and the boss of the moving contact mounting seat, and the abutting of the positioning sheet and the positioning block or the boss forms the limit of the rotation angle of the L.
2. A movable contact mechanism for a circuit breaker as claimed in claim 1, wherein: a connecting column is arranged above the mounting column at the second side of the moving contact mounting seat, a convex edge is arranged around the periphery of the connecting column, an abutting surface and an abutting boss are respectively arranged on the convex edge, a third torsion spring is sleeved on the connecting column, a first torsion arm of the third torsion spring abuts against the abutting surface, a second torsion arm of the third torsion spring can abut against the abutting boss, a second stop block is arranged below the abutting boss, a positioning notch is formed between the second stop block and the side surface of the second side of the moving contact mounting seat, a second bayonet is arranged on the N-pole moving contact, a second concave cavity is arranged on the second side of the moving contact mounting seat and corresponds to the second bayonet, the N-pole moving contact is sleeved on the mounting column at the second side of the moving contact mounting seat, a second torsion spring is arranged between the N-pole moving contact and the moving contact mounting seat, and the second torsion spring is also sleeved on the mounting column at the second side, the first torque arm of second torsional spring is contradicted on the location notch, the second torque arm of second torsional spring is contradicted on the second bayonet socket of N utmost point moving contact, and the second torque arm tip of second torsional spring inserts in the second cavity after buckling, be provided with the location lug on the second side of moving contact mount pad, on the N utmost point moving contact and lie in and be provided with N limit bit piece between location lug and the conflict boss, N limit bit piece constitutes the turned angle's of N utmost point moving contact spacing with the conflict of location lug or conflict boss.
3. A movable contact mechanism for a circuit breaker as claimed in claim 2, wherein: the first torsion arm of the first torsion spring is arranged at a position, close to the stop, of the limiting groove, the width of a space, located in the first torsion arm of the first torsion spring, of the limiting groove is larger than the thickness of the L-pole moving contact, the L-pole moving contact rotates a space, located in the first torsion arm, of the limiting groove, the side edge of the positioning piece of the L-pole moving contact can be inserted into the space, located in the first torsion arm of the limiting groove, the first torsion arm of the second torsion spring is arranged at a position, close to the stop, of the positioning notch, the width of the space, located in the first torsion arm of the second torsion spring, of the positioning notch is larger than the thickness.
4. A movable contact mechanism of a circuit breaker according to claim 1 or 2, wherein: the utility model discloses a breaker, including moving contact mount pad, hasp, tripper ejector pin, the last spacer that just is located the L utmost point moving contact of moving contact mount pad and N limit position piece between be provided with protruding muscle or recess on global, the below of hasp is provided with the lug, corresponds the department with the tripper ejector pin of circuit breaker on the hasp and is provided with the arc face of contradicting, the top that just is located the erection column on the hasp is provided with the inclined plane of contradicting.
5. A movable contact mechanism of a circuit breaker according to claim 1 or 2, wherein: the periphery of spout bottom is provided with the recess, the boss is gone up the side and is set up with the downside of spout flexion an organic whole and constitute and to support the pressure face, and the circuit breaker is combined floodgate back, and the link of circuit breaker handle connecting rod is contradicted on supporting the pressure face, and the contained angle that the thrust direction of the link of circuit breaker handle connecting rod and support the thrust direction between the link of pressing the face to the handle connecting rod is less than 180 degrees, the top that the moving contact mount pad is located the spout is provided with divide-shut brake indicator board.
6. A movable contact mechanism of a circuit breaker as claimed in claim 4, wherein: the periphery of spout bottom is provided with the recess, the boss is gone up the side and is set up with the downside of spout flexion an organic whole and constitute and to support the pressure face, and the circuit breaker is combined floodgate back, and the link of circuit breaker handle connecting rod is contradicted on supporting the pressure face, and the contained angle that the thrust direction of the link of circuit breaker handle connecting rod and support the thrust direction between the link of pressing the face to the handle connecting rod is less than 180 degrees, the top that the moving contact mount pad is located the spout is provided with divide-shut brake indicator board.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011568391.9A CN112490090A (en) | 2020-12-25 | 2020-12-25 | Moving contact mechanism of circuit breaker |
| PCT/CN2021/133631 WO2022135046A1 (en) | 2020-12-25 | 2021-11-26 | Moving contact mechanism for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011568391.9A CN112490090A (en) | 2020-12-25 | 2020-12-25 | Moving contact mechanism of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112490090A true CN112490090A (en) | 2021-03-12 |
Family
ID=74915688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011568391.9A Pending CN112490090A (en) | 2020-12-25 | 2020-12-25 | Moving contact mechanism of circuit breaker |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112490090A (en) |
| WO (1) | WO2022135046A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022135038A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江奥来电器有限公司 | Moving contact mechanism of circuit breaker |
| WO2022135046A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江奥来电器有限公司 | Moving contact mechanism for circuit breaker |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008269937A (en) * | 2007-04-19 | 2008-11-06 | Kawamura Electric Inc | Circuit breaker |
| JP6878106B2 (en) * | 2017-04-14 | 2021-05-26 | 河村電器産業株式会社 | Circuit breaker |
| CN109801818A (en) * | 2019-03-22 | 2019-05-24 | 乐清市速通电气有限公司 | Contact system with arc |
| CN210897162U (en) * | 2019-09-05 | 2020-06-30 | 上海正泰智能科技有限公司 | Circuit breaker |
| CN111785586A (en) * | 2020-08-08 | 2020-10-16 | 浙江威利坚科技股份有限公司 | Operating mechanism of circuit breaker |
| CN112490090A (en) * | 2020-12-25 | 2021-03-12 | 浙江奥来电器有限公司 | Moving contact mechanism of circuit breaker |
| CN112563085A (en) * | 2020-12-25 | 2021-03-26 | 浙江奥来电器有限公司 | Moving contact mechanism of circuit breaker |
-
2020
- 2020-12-25 CN CN202011568391.9A patent/CN112490090A/en active Pending
-
2021
- 2021-11-26 WO PCT/CN2021/133631 patent/WO2022135046A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022135038A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江奥来电器有限公司 | Moving contact mechanism of circuit breaker |
| WO2022135046A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江奥来电器有限公司 | Moving contact mechanism for circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022135046A1 (en) | 2022-06-30 |
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