CN108109886B - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
- Publication number
- CN108109886B CN108109886B CN201810048278.4A CN201810048278A CN108109886B CN 108109886 B CN108109886 B CN 108109886B CN 201810048278 A CN201810048278 A CN 201810048278A CN 108109886 B CN108109886 B CN 108109886B
- Authority
- CN
- China
- Prior art keywords
- connecting plate
- arm
- circuit breaker
- torsion spring
- moving contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 210000003205 muscle Anatomy 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 238000004880 explosion Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H01H71/40—Combined electrothermal and electromagnetic mechanisms
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The invention relates to a circuit breaker, which adopts the following technical scheme: a circuit breaker, characterized in that: the novel circuit breaker is reasonable in structure and convenient to install.
Description
Technical Field
The present invention relates to a circuit breaker.
Background
The moving contact operating mechanism of the existing circuit breaker is complex in structure, especially misoperation is easy to occur, so that the performance of a product can be influenced, in addition, the over-travel mechanism is unreasonable in design, the moving contact cannot be closed or opened well, and the structure inside the circuit breaker is easy to burn out or larger electric arc is easy to generate.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides the novel circuit breaker which has reasonable structure and convenient installation.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a circuit breaker, including casing, release, stationary contact, moving contact operating device, explosion chamber, wherein moving contact operating device is including moving contact, moving contact mount pad, jump knot and hasp, and wherein the moving contact is fixed to be set up on the moving contact mount pad, its characterized in that: the movable contact mounting seat is rotated and arranged on the connecting plate through a pin shaft, a first abutting surface is arranged on the movable contact mounting seat, a second abutting surface is arranged on the connecting plate, a first torsion spring is arranged on the connecting plate, a first abutting arm of the first torsion spring abuts against a boss or a clamping groove of the movable contact mounting seat, a second abutting arm of the first torsion spring abuts against the boss or the clamping groove of the connecting plate, the movable contact mounting seat and the connecting plate are enabled to be tightly attached to or close to each other through the first abutting surface and the second abutting surface under the action of the first torsion spring, so that the movable contact and the fixed contact are tightly attached to each other after the circuit breaker is closed, a tension spring is arranged between the connecting plate and a magnetic yoke of the release, a second torsion spring is arranged between the connecting plate and the lock catch, the first abutting arm of the second torsion spring abuts against the connecting plate, and the second abutting arm of the second torsion spring abuts against the second abutting arm of the second torsion spring is arranged on the lock buckle.
Through adopting above-mentioned scheme, make the structural layout of this product reasonable, the body shows that the connecting plate is articulated back with the moving contact mount pad through first torsional spring and both cooperation, first torsional spring can produce torsion to the moving contact mount pad after the circuit breaker is closed, make contact between moving contact and the static contact inseparabler, be provided with first face and the second face of supporting to pressing in addition, realize the location through the cooperation of first face and the second face of supporting to pressing between connecting plate and the moving contact mount pad like this, after the circuit breaker disconnection, realize fixedly through first torsional spring, first face and the second face of supporting to pressing between moving contact mount pad and the connecting plate, do not influence its normal work, the work of realization hasp that the setting of second torsional spring can be fine.
The invention is further provided with the following steps: the shell comprises a base and an upper cover, a semicircular rotating part is arranged on the connecting plate, an arc-shaped cavity matched with the semicircular rotating part of the connecting plate is arranged on the moving contact mounting seat, the rotating part is arranged in the arc-shaped cavity, a through hole is formed in the rotating part, a penetrating hole corresponding to the through hole is formed in the bottom of the arc-shaped cavity, a pin shaft penetrates through the through hole and the penetrating hole, a circular convex column is arranged at one side, close to the base, of the rotating part and located at the through hole, and a first torsion spring is sleeved on the circular convex column.
Through adopting above-mentioned scheme, we make the cooperation between connecting plate and the moving contact mount pad more reasonable, make the first torsion spring cover establish on the circular projection through setting up the circular projection in addition, the fixed first torsional spring that like this can be fine.
The invention is further provided with the following steps: the periphery that just is located circular projection on the connecting plate is provided with protruding muscle, and the tip of protruding muscle is provided with the draw-in groove, the second extension arm of first torsional spring is contradicted and is set up in the draw-in groove of protruding muscle tip, the moving contact mount pad is provided with the sand grip along arc chamber periphery, is provided with the breach on the sand grip, is provided with the draw-in groove on the breach, and the first extension arm of first torsional spring is contradicted and is set up in the draw-in groove of breach.
Through adopting above-mentioned scheme, can be fine fix two conflict arms of first torsional spring, it is very reasonable, the cooperation of protruding muscle and sand grip can be fine in addition plays the guard action to first torsional spring, prevents that it from receiving other spare part's influence.
The invention is further provided with the following steps: the convex rib is provided with the block platform for on the opposite side of circular projection, and the first conflict arm of second torsional spring is contradicted and is set up on the block platform, one side of hasp is provided with the extension arm towards the base direction, is provided with the lug on the extension arm, and the second conflict arm of second torsional spring is passed through the lug restriction and is contradicted on the extension arm.
Through adopting above-mentioned scheme, can be fine fix and install the conflict arm of second torsional spring, can be fine prevent that it from droing.
The invention is further provided with the following steps: the magnetic yoke of release is provided with first couple on the side, be provided with the second couple on the connecting plate, the extension spring is connected between first couple and second couple, be provided with the swing arm on the extension arm of hasp, be provided with on the swing arm with the bimetallic strip complex pull rod of circuit breaker.
By adopting the scheme, the tension spring is convenient to install and simple in structure.
The invention is further described below with reference to the accompanying drawings.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is an internal block diagram of an embodiment of the present invention;
FIG. 3 is a perspective view of an embodiment of the present invention reflecting a first torsion spring;
FIG. 4 is a perspective view of an embodiment of the present invention reflecting a second torsion spring;
FIG. 5 is a perspective view of a connecting plate according to an embodiment of the present invention;
FIG. 6 is a perspective view of a movable contact mounting base according to an embodiment of the present invention;
fig. 7 is a perspective view of the embodiment of the present invention after opening the brake.
Detailed Description
As shown in fig. 1-7, a circuit breaker comprises a shell 1, a release 2, a fixed contact 3, a moving contact operating mechanism 4 and an arc extinguishing chamber 5, wherein the moving contact operating mechanism 4 comprises a moving contact 41, a moving contact mounting seat 42, a trip 43 and a lock catch 44, the moving contact 41 is fixedly arranged on the moving contact mounting seat 42, in the embodiment of the invention, the circuit breaker further comprises a connecting plate 45, the trip 43 and the lock catch 44 are rotatably arranged on the connecting plate 45, the connecting plate 45 is rotatably arranged on the shell 1 through a pin shaft 7, the moving contact mounting seat 42 is rotatably arranged on the connecting plate 45, a first abutting surface 421 is arranged on the moving contact mounting seat 42, a second abutting surface 451 is arranged on the connecting plate 45, a first torsion spring 46 is arranged on the connecting plate 45, the first abutting arm 461 of the first torsion spring 46 abuts against and is arranged in the boss or the clamping groove 422 of the movable contact mounting seat 42, the second abutting arm 462 of the first torsion spring 46 abuts against and is arranged in the boss or the clamping groove 452 of the connecting plate 45, the movable contact mounting seat 42 and the connecting plate 45 are enabled to be tightly attached to or close to each other through the first abutting surface 421 and the second abutting surface 451 under the action of the first torsion spring 46, so that the movable contact 41 and the fixed contact 3 are tightly attached to each other after the circuit breaker is closed, a tension spring 6 is arranged between the connecting plate 45 and the magnetic yoke 21 of the release 2, a second torsion spring 47 is arranged between the connecting plate 45 and the lock catch 44, the first abutting arm 471 of the second torsion spring 47 abuts against the connecting plate 45, and the second abutting arm 471 of the second torsion spring 47 abuts against and is arranged on the lock catch 44. Through adopting above-mentioned scheme, make the structural layout of this product reasonable, the concrete expression is in, connecting plate 45 and moving contact mount pad 42 are articulated the back and pass through first torsional spring 46 and cooperate with both, first torsional spring 46 can produce torsion to moving contact mount pad 42 after the circuit breaker is closed, make contact between moving contact 41 and the static contact 3 inseparabler, produce the overtravel promptly, be provided with in addition and prop pressure face 421 and second and prop pressure face 451, realize the location through the cooperation of first face 421 and second face 451 that prop pressure between connecting plate 45 and the moving contact mount pad 42 like this, after the circuit breaker is opened, realize fixing through first torsional spring 46 between moving contact mount pad 42 and the connecting plate 45, first face 421 and second face 451 that prop pressure, do not influence its normal work, the work of hasp 44 can be realized to the setting up of second torsional spring 47 fine.
In this embodiment of the present invention, the housing 1 includes a base 11 and an upper cover 12, a connection board 45 is provided with a semicircular rotating portion 453, the moving contact mounting base 42 is provided with an arc cavity 423 matched with the semicircular rotating portion 453 of the connection board 45, the rotating portion 453 is disposed in the arc cavity 423, the rotating portion 453 is provided with a through hole 4531, the bottom of the arc cavity 423 is provided with a penetrating hole 4231 corresponding to the through hole 4531, the pin shaft 7 passes through the through hole 4531 and the penetrating hole 4231, a circular boss 4532 is disposed on the rotating portion 453 near one side of the base 11 and at the through hole 4531, and the first torsion spring 46 is sleeved on the circular boss 4532. By adopting the above scheme, the cooperation between the connecting plate 45 and the moving contact mounting seat 42 is more reasonable, and in addition, the first torsion spring sleeve 46 is arranged on the circular convex column 4532 by arranging the circular convex column 4532, so that the first torsion spring 46 can be well fixed.
In the embodiment of the invention, a protruding rib 4533 is disposed on the connecting plate 45 and located at the periphery of the circular protruding post 4532, a clamping groove 452 is disposed at the end of the protruding rib 4533, a second extension arm 462 of the first torsion spring 46 is arranged in the clamping groove 452 at the end of the protruding rib 4533 in a collision manner, a protruding strip 4233 is disposed on the periphery of the moving contact mounting seat 42 surrounding the arc-shaped cavity 423, a notch is disposed on the protruding strip 4233, a clamping groove 422 is disposed on the notch, and a first extension arm 461 of the first torsion spring 46 is arranged in the clamping groove 422 of the notch in a collision manner; through adopting above-mentioned scheme, can be fine fix two conflict arms 461, 462 of first torsional spring 46, it is very reasonable, and the cooperation of protruding muscle 4533 and sand grip 4233 can be fine in addition plays the guard action to first torsional spring 46, prevents that it from receiving other spare part's influence.
In this embodiment, a clamping table 45331 is disposed on the other side of the protruding rib 4533 opposite to the circular protruding column 4532, a first abutting arm 471 of the second torsion spring 47 abuts against and is disposed in the clamping table 45331, an extension arm 441 is disposed on one side of the lock catch 44 toward the base 11, a protruding block 4411 is disposed on the extension arm 441, and a second abutting arm 472 of the second torsion spring 47 abuts against the extension arm 441 through the protruding block 4411; by adopting the above scheme, the abutting arms 471, 472 of the second torsion spring 47 can be well fixed and mounted, and falling off can be well prevented. In the embodiment of the invention, the first hook 211 is disposed on the upper side of the yoke 21 of the release 2, the second hook 454 is disposed on the connecting plate 45, and the tension spring 6 is connected between the first hook 211 and the second hook 454, so that the tension spring 6 is convenient to install and simple in structure, the swing arm 4412 is disposed on the extension arm 441 of the lock catch 44, and the pull rod 4413 matched with the bimetallic strip of the circuit breaker is disposed on the swing arm 4412.
Claims (6)
1. The utility model provides a circuit breaker, including casing, release, stationary contact, moving contact operating device, explosion chamber, wherein moving contact operating device is including moving contact, moving contact mount pad, jump knot and hasp, and wherein the moving contact is fixed to be set up on the moving contact mount pad, its characterized in that: the movable contact mounting seat is rotated and arranged on the connecting plate through a pin shaft, a first abutting surface is arranged on the movable contact mounting seat, a second abutting surface is arranged on the connecting plate, a first torsion spring is arranged on the connecting plate, a first abutting arm of the first torsion spring abuts against a boss or a clamping groove of the movable contact mounting seat, a second abutting arm of the first torsion spring abuts against the boss or the clamping groove of the connecting plate, the movable contact mounting seat and the connecting plate are enabled to be tightly attached to or close to each other through the first abutting surface and the second abutting surface under the action of the first torsion spring, so that the movable contact and the fixed contact are tightly attached to each other after the circuit breaker is closed, a tension spring is arranged between the connecting plate and a magnetic yoke of the release, a second torsion spring is arranged between the connecting plate and the lock catch, the first abutting arm of the second torsion spring abuts against the connecting plate, and the second abutting arm of the second torsion spring abuts against the second abutting arm of the second torsion spring is arranged on the lock buckle.
2. The circuit breaker according to claim 1, characterized in that: the shell comprises a base and an upper cover, a semicircular rotating part is arranged on the connecting plate, an arc-shaped cavity matched with the semicircular rotating part of the connecting plate is arranged on the moving contact mounting seat, the rotating part is arranged in the arc-shaped cavity, a through hole is formed in the rotating part, a penetrating hole corresponding to the through hole is formed in the bottom of the arc-shaped cavity, a pin shaft penetrates through the through hole and the penetrating hole, a circular convex column is arranged at one side, close to the base, of the rotating part and located at the through hole, and a first torsion spring is sleeved on the circular convex column.
3. The circuit breaker according to claim 2, characterized in that: the periphery that just is located circular projection on the connecting plate is provided with protruding muscle, and the tip of protruding muscle is provided with the draw-in groove, the second extension arm of first torsional spring is contradicted and is set up in the draw-in groove of protruding muscle tip, the moving contact mount pad is provided with the sand grip along arc chamber periphery, is provided with the breach on the sand grip, is provided with the draw-in groove on the breach, and the first extension arm of first torsional spring is contradicted and is set up in the draw-in groove of breach.
4. A circuit breaker according to claim 3, characterized in that: the convex rib is provided with the block platform for on the opposite side of circular projection, and the first conflict arm of second torsional spring is contradicted and is set up in the block platform, one side of hasp is provided with the extension arm towards the base direction, is provided with the lug on the extension arm, and the second conflict arm of second torsional spring is passed through the lug restriction and is contradicted on the extension arm.
5. The circuit breaker according to claim 2, characterized in that: the magnetic yoke of release is provided with first couple on the side, be provided with the second couple on the connecting plate, the extension spring is connected between first couple and second couple.
6. The circuit breaker of claim 4, wherein: the magnetic yoke of release is provided with first couple on the side, be provided with the second couple on the connecting plate, the extension spring is connected between first couple and second couple, be provided with the swing arm on the extension arm of hasp, be provided with on the swing arm with the bimetallic strip complex pull rod of circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810048278.4A CN108109886B (en) | 2018-01-18 | 2018-01-18 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810048278.4A CN108109886B (en) | 2018-01-18 | 2018-01-18 | Circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108109886A CN108109886A (en) | 2018-06-01 |
| CN108109886B true CN108109886B (en) | 2024-04-26 |
Family
ID=62218473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810048278.4A Active CN108109886B (en) | 2018-01-18 | 2018-01-18 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108109886B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646828A (en) * | 2013-12-26 | 2014-03-19 | 二一三电器(上海)有限公司 | Operating mechanism of miniature circuit breaker and working process thereof |
| CN104299864A (en) * | 2014-10-21 | 2015-01-21 | 加西亚电子电器有限公司 | Miniature circuit breaker |
| CN205140898U (en) * | 2015-09-22 | 2016-04-06 | 浙江正泰电器股份有限公司 | Circuit breaker |
| CN105914110A (en) * | 2016-06-20 | 2016-08-31 | 浙江天正电气股份有限公司 | Small-sized circuit breaker |
| CN107146746A (en) * | 2017-07-06 | 2017-09-08 | 温州东极电气有限公司 | A kind of breaker |
| CN206516584U (en) * | 2017-02-08 | 2017-09-22 | 浙江正泰电器股份有限公司 | Miniature circuit breaker |
| CN207765384U (en) * | 2018-01-18 | 2018-08-24 | 温州奥来电器有限公司 | A kind of breaker |
-
2018
- 2018-01-18 CN CN201810048278.4A patent/CN108109886B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646828A (en) * | 2013-12-26 | 2014-03-19 | 二一三电器(上海)有限公司 | Operating mechanism of miniature circuit breaker and working process thereof |
| CN104299864A (en) * | 2014-10-21 | 2015-01-21 | 加西亚电子电器有限公司 | Miniature circuit breaker |
| CN205140898U (en) * | 2015-09-22 | 2016-04-06 | 浙江正泰电器股份有限公司 | Circuit breaker |
| CN105914110A (en) * | 2016-06-20 | 2016-08-31 | 浙江天正电气股份有限公司 | Small-sized circuit breaker |
| CN206516584U (en) * | 2017-02-08 | 2017-09-22 | 浙江正泰电器股份有限公司 | Miniature circuit breaker |
| CN107146746A (en) * | 2017-07-06 | 2017-09-08 | 温州东极电气有限公司 | A kind of breaker |
| CN207765384U (en) * | 2018-01-18 | 2018-08-24 | 温州奥来电器有限公司 | A kind of breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108109886A (en) | 2018-06-01 |
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