CN102568944A - Small-sized circuit breaker - Google Patents
Small-sized circuit breaker Download PDFInfo
- Publication number
- CN102568944A CN102568944A CN2012100305369A CN201210030536A CN102568944A CN 102568944 A CN102568944 A CN 102568944A CN 2012100305369 A CN2012100305369 A CN 2012100305369A CN 201210030536 A CN201210030536 A CN 201210030536A CN 102568944 A CN102568944 A CN 102568944A
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- circuit breaker
- moving contact
- gold
- miniature circuit
- housing
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Abstract
The invention provides a small-sized circuit breaker, comprising a shell, a double-gold sheet, a lock buckle, an arc extinguish chamber, a wiring column, a movable contact, a movable contact bracket and a shaft passing through the movable contact bracket, wherein the double-gold sheet comprises a double-gold sheet fixed end and a double-gold sheet movable end; the small-sized circuit breaker is further provided with a separation plate which is located between the double-gold sheet and an arc striking sheet; the separation plate corresponds to the shell to form a cavity ,and the double-gold sheet is arranged in the cavity. According to the small-sized circuit breaker, the double-gold sheet is not affected by the heating of other elements; in addition, an magnetic field generated by electric arcs on the double-gold sheet is separated from the magnetic field generated by the electric arcs of the arc striking sheet and the magnetic fields do not interfere with each other, so that the arc-striking effect of the arc striking sheet is good, and the breaking performance of the circuit breaker is good.
Description
Technical field
The present invention relates to circuit breaker, especially a kind of miniature circuit breaker.
Background technology
Miniature circuit breaker is applicable to the overload of alternating current transmission line and the usefulness of short-circuit protection, also can be under normal circumstances as the usefulness of the not frequent operation conversion of circuit.Miniature circuit breaker is mainly used in various places such as industry, commerce, high level and residential houses.
Existing miniature circuit breaker does not intercept between other elements of its pair gold plaque and circuit breaker, receives the influence of other element heating of circuit breaker easily; Cause two gold plaques unsuitable the time, to deform, cause the unexpected disconnection of circuit breaker, simultaneously; Two gold plaques are near the striking sheet and have no obstruct, when the dynamic and static contact of circuit breaker is threaded off, and the current opposite in direction on electric current on two gold plaques and the striking sheet; The electromagnetic field mutual interference mutually of the electric arc generation on the magnetic field that electric arc on two gold plaques produces and the striking sheet; Cause the electric arc on the striking sheet in the guiding arc control device, to be hindered, the striking effect is bad, and the circuit breaker breaking capacity is affected.In addition, existing miniature circuit breaker also exists moving contact to contact the problems such as temperature effect that arc short circuit easily, two gold plaque between inhomogeneous, arc control device and the binding post receive other heater elements easily with fixed contact.
Summary of the invention
The problem that the present invention will solve is to improve the problem that two gold plaques of the middle-size and small-size circuit breaker of background technology can't be regulated.
In order to overcome the above problems, the present invention provides a kind of miniature circuit breaker, comprises housing, two gold plaque, snap close, arc control device; Binding post, moving contact, moving contact rack, pass the axle of moving contact rack; Said pair of gold plaque comprises two gold plaque stiff ends and two gold plaque movable end, and said miniature circuit breaker also is provided with dividing plate, and said dividing plate is between two gold plaques and striking sheet; Said dividing plate is corresponding with housing and surround a chamber, and said pair of gold plaque is located at this chamber.
As further improvement of the present invention, said dividing plate and housing are one.
As further improvement of the present invention; Said pair of gold plaque comprises two gold plaque stiff ends and two gold plaque movable end; Said snap close is hinged with connecting rod; Said connecting rod is provided with the adjustment screw of carrying out threaded engagement with it, and the end of said adjustment screw is butted on two gold plaque movable ends mutually, and said adjustment screw is positioned at the side that two gold plaque movable ends raise and tend to when occuring bending and deformation in temperature; Institute's inner walls is provided with the stopper slot corresponding to connecting rod, and said stopper slot is sticked in the slewing area of connecting rod and limiting rod.
As further improvement of the present invention; Said miniature circuit breaker also wraps flap, and described moving contact rack is installed on flap through axle, and said moving contact is installed on the moving contact rack; Described axle is provided with two torsion springs; Said two torsion springs lay respectively at the both sides of moving contact rack, and one of described torsion spring is butted on moving contact mutually, and the other end is butted on flap mutually.
As further improvement of the present invention, described miniature circuit breaker also comprises snap close, is provided with spring between said snap close and the flap, and described spring one end is connected in snap close, and the other end is connected in flap.
As further improvement of the present invention, said miniature circuit breaker also comprises arc control device, and binding post is provided with baffle plate between described arc control device and the binding post, and said baffle plate is separated arc control device and binding post.
As further improvement of the present invention, said baffle plate is corresponding with housing to surround a space, and said binding post is located at this space, and said housing is provided with opening corresponding to the below that goes out nock of arc control device.
As further improvement of the present invention, said miniature circuit breaker is provided with opening corresponding to the below that goes out nock of arc control device.
Miniature circuit breaker of the present invention, said miniature circuit breaker also is provided with dividing plate, and said dividing plate is between two gold plaques and striking sheet, and said dividing plate is corresponding with housing and surround a chamber, and said pair of gold plaque is located at this chamber.Make two gold plaques can not receive the influence of other components and parts heatings; The magnetic field that magnetic field that electric arc on two in addition gold plaques produces and the electric arc on the striking sheet produce is separated by dividing plate; Can the phase mutual interference, make that the striking of striking sheet is effective, the interrupting performance of circuit breaker is good.In addition, the temperature effect that as further improvement, miniature circuit breaker of the present invention, moving contact contact with fixed contact evenly, be not easy the arc short circuit between arc control device and the binding post, two gold plaque is not easy to receive other heater elements.
Description of drawings
Accompanying drawing 1 is the structural representation of dividing plate 20 according to the invention
Accompanying drawing 2 is scheme of installations of according to the invention pair of gold plaque 2, connecting rod 1 and snap close 4
Accompanying drawing 3 is the local enlarged diagrams at the A place of Fig. 2
Accompanying drawing 4 is scheme of installations of connecting rod 1 according to the invention and stopper slot 51
Accompanying drawing 5 is scheme of installations of moving contact 6 according to the invention and moving contact rack 7
Accompanying drawing 6 is scheme of installations of flap according to the invention 8, spring 12 and snap close 4
Accompanying drawing 7 is the local enlarged diagrams at the B place of Fig. 6
Accompanying drawing 8 is scheme of installations of baffle plate according to the invention 16, arc control device 13 and binding post 14
Accompanying drawing 9 is scheme of installations of baffle plate according to the invention 16, arc control device 13, housing 5 and binding post screw 141
Marginal data: 1, connecting rod; 12, spring; 13, arc control device; 131, go out nock; 14, binding post; 141, binding post screw; 16, baffle plate; 2, two gold plaques; 20, dividing plate; 21, striking sheet; 22, torsion spring; 3, adjustment screw; 4, snap close; 5, housing; 51, stopper slot; 6, moving contact; 7, moving contact rack; 8, flap; 9, axle.
Embodiment
Below in conjunction with accompanying drawing a kind of miniature circuit breaker of the present invention is described further.
Shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9; The miniature circuit breaker of present embodiment; Comprise housing 5, two gold plaque 2, snap close 4, arc control device 13, binding post 14, moving contact 6, moving contact rack 7, pass the axle 9 of moving contact rack 7, two gold plaques 2 comprise two gold plaque stiff ends and two gold plaque movable ends; Miniature circuit breaker also is provided with dividing plate 20; Dividing plate 20 is between two gold plaques 2 and striking sheet 21, and dividing plate 20 and housing 5 are corresponding and surround a chamber, and two gold plaques 2 are located at this chamber.Make two gold plaques 2 can not receive the influence of other heater elements of circuit breaker.Shown in the arrow of representing the sense of current on the arrow of the expression sense of current on two gold plaques among Fig. 1 and the striking sheet; Current opposite in direction on electric current on two gold plaques and the striking sheet; The electromagnetic field that produces can the phase mutual interference, and the magnetic field of magnetic field that the electric arc on two gold plaques 2 of present embodiment produces and the generation of the electric arc on the striking sheet 21 is separated by dividing plate, can the phase mutual interference; Make that the striking of striking sheet 21 is effective, the interrupting performance of circuit breaker is good.In addition, as further improvement, in the present embodiment, said dividing plate 20 is one with housing 5.The design makes structure more succinct, installs more convenient.
In the present embodiment; Comprise housing 5, two gold plaque 2 and snap close 4; Two gold plaques 2 comprise two gold plaque stiff ends and two gold plaque movable end, and snap close 4 is hinged with connecting rod 1, and connecting rod 1 is provided with the adjustment screw 3 of carrying out threaded engagement with it; The end of adjustment screw 3 is butted on two gold plaque movable ends mutually; Adjustment screw 3 is positioned at the side that two gold plaque 2 movable ends raise and tend to when occuring bending and deformation in temperature, and institute's housing 5 inwalls are provided with the stopper slot 51 corresponding to connecting rod 1, and said stopper slot 51 is sticked in the slewing area of connecting rod 1 and limiting rod 1.Make the distance between two gold plaques and the snap close to regulate easily, make two gold plaques to drive snap close in due course to thread off so that be adjusted to suitable distance.Because connecting rod 1 one ends are articulated in snap close 4; Connecting rod 1 other end is butted on two gold plaques mutually through screw, and its slewing area exceeds the sphere of action of two gold plaques sometimes, so; In the present embodiment; Be provided with the stopper slot 51 corresponding to connecting rod 1 through institute's housing 5 inwalls, stopper slot 51 defines the slewing area of connecting rod 1, makes connecting rod 1 can not rotate to exceed the sphere of action of two gold plaques.
Further improvement as present embodiment; Described miniature circuit breaker also comprises moving contact 6, moving contact rack 7, flap 8, pass the axle 9 of moving contact rack 7, moving contact rack 7 be installed on flap 8 through axle 9, moving contact 6 is installed on the moving contact rack 7; Axle 9 be provided with two torsion springs 22; Two torsion springs 22 lay respectively at the both sides of moving contact rack 7,22 1 of torsion springs be butted on moving contact 6 mutually, the other end is butted on flap 8 mutually.Through on axle 9, being provided with two torsion springs 22, said two torsion springs 22 lay respectively at the both sides of moving contact rack 7, and 22 1 of described torsion springs are butted on moving contact 6 mutually, and the other end is butted on flap 8 mutually; Make the both sides of moving contact rack 7 that the torsion spring effect all arranged, moving contact 6 monosymmetric stressed, moving contact 6 is stressed more even, when contacting with fixed contact; Contact-making surface is even, contact gap can not occur, and contact area is bigger; Resistance is little, and conductive effect is good, is not easy to cause electric spark.
As the further improvement of present embodiment, described miniature circuit breaker also comprises snap close 4, is provided with spring 12 between snap close 4 and the flap 8, spring 12 1 ends be connected in snap close 4, the other end is connected in flap 8.Because the stable performance of spring, useful life is longer, so the design's sound construction is reliable and stable.
As shown in Figure 8, as the further improvement of present embodiment, described miniature circuit breaker also comprises arc control device 13; Binding post 14; Arc control device 13 and binding post 14 between be provided with baffle plate 16, baffle plate 16 is separated arc control device 13 and binding post 14, described binding post also is provided with binding post screw 141.In the present embodiment; Said housing 5 is divided into fore shell and back cover again; Forward and backward shell is fixed through screw, and front and rear casing also has been fixedly clamped to baffle plate 16 after through screw lock, baffle plate 16 with arc control device 13 and binding post 14 separate make arc-extinguishing chamber of circuit breaker 13 go out electric arc that nock 131 gone out can't conducting in binding post 14; Make circuit breaker the arc short circuit can not occur, the stable performance of circuit breaker.In the present embodiment, described baffle plate 16 and housing 5 be corresponding to surround a space, and binding post 14 is located at this space, and housing 5 is provided with opening corresponding to the below that goes out nock 131 of arc control device 13.The electric arc that makes arc control device 13 go out nock 131 has one to lead outlet off, and circuit breaker inside is not ganged up again, further makes the stable performance of circuit breaker, life-span improve and prolongs.
The invention is not restricted to above embodiment and conversion.
Claims (7)
1. miniature circuit breaker; Comprise housing (5), two gold plaque (2), snap close (4), arc control device (13); Binding post (14), moving contact (6), moving contact rack (7), pass the axle (9) of moving contact rack (7); Said pair of gold plaque (2) comprises two gold plaque stiff ends and two gold plaque movable end, and it is characterized in that: said miniature circuit breaker also is provided with dividing plate (20), and said dividing plate (20) is positioned between two gold plaques (2) and the striking sheet (21); Said dividing plate (20) is corresponding with housing (5) and surround a chamber, and said pair of gold plaque (2) is located at this chamber.
2. a kind of miniature circuit breaker according to claim 1 is characterized in that: said dividing plate (20) is an one with housing (5).
3. a kind of miniature circuit breaker according to claim 1 and 2; It is characterized in that: said snap close (4) is hinged with connecting rod (1); Said connecting rod (1) is provided with the adjustment screw (3) of carrying out threaded engagement with it; The end of said adjustment screw (3) is butted on two gold plaque movable ends mutually; Said adjustment screw (3) is positioned at the side that two gold plaque (2) movable ends raise and tend to when occuring bending and deformation in temperature, and institute's housing (5) inwall is provided with the stopper slot (51) corresponding to connecting rod (1), and said stopper slot (51) is sticked in the slewing area of connecting rod (1) and limiting rod (1).
4. a kind of miniature circuit breaker according to claim 1 and 2; It is characterized in that: said circuit breaker also is provided with flap (8); Described moving contact rack (7) is installed on flap (8) through axle (9); Said moving contact (6) is installed on the moving contact rack (7), and described axle (9) is provided with two torsion springs (22), and said two torsion springs (22) lay respectively at the both sides of moving contact rack (7); (22) one of described torsion springs are butted on moving contact (6) mutually, and the other end is butted on flap (8) mutually.
5. a kind of miniature circuit breaker according to claim 1 and 2 is characterized in that: be provided with spring (12) between said snap close (4) and the flap (8), described spring (12) one ends are connected in snap close (4), and the other end is connected in flap (8).
6. a kind of miniature circuit breaker according to claim 1 and 2 is characterized in that: be provided with baffle plate (16) between described arc control device (13) and the binding post (14), said baffle plate (16) is separated arc control device (13) and binding post (14).
7. a kind of miniature circuit breaker according to claim 6; It is characterized in that: said baffle plate (16) is corresponding with housing (5) to surround a space; Said binding post (14) is located at this space, and said housing (5) is provided with opening corresponding to the below that goes out nock (131) of arc control device (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100305369A CN102568944A (en) | 2012-02-10 | 2012-02-10 | Small-sized circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100305369A CN102568944A (en) | 2012-02-10 | 2012-02-10 | Small-sized circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102568944A true CN102568944A (en) | 2012-07-11 |
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ID=46414092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100305369A Pending CN102568944A (en) | 2012-02-10 | 2012-02-10 | Small-sized circuit breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN102568944A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485267A (en) * | 2014-12-19 | 2015-04-01 | 常熟开关制造有限公司(原常熟开关厂） | Contact arc extinguishing device for low voltage circuit breaker |
| CN109727831A (en) * | 2017-10-31 | 2019-05-07 | 浙江正泰电器股份有限公司 | Breaker |
| CN110233084A (en) * | 2019-06-28 | 2019-09-13 | 武汉长海电气科技开发有限公司 | D.C. contactor is pressed in one kind |
| CN110277286A (en) * | 2018-03-13 | 2019-09-24 | 浙江思创电力科技股份有限公司 | A kind of breaker mechanism |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01311529A (en) * | 1988-06-08 | 1989-12-15 | Mitsubishi Electric Corp | Opening/closing mechanism for circuit breaker |
| CN1056185A (en) * | 1990-04-07 | 1991-11-13 | 费尔腾和古伊勒奥梅能源股份公司 | Fault current protective switch in modular design |
| JPH04315728A (en) * | 1991-03-28 | 1992-11-06 | Mitsubishi Electric Corp | Circuit breaker |
| JP2000208020A (en) * | 1998-11-10 | 2000-07-28 | Mitsubishi Electric Corp | Circuit breaker |
| US6310528B1 (en) * | 1999-05-25 | 2001-10-30 | Fuji Electric Co., Ltd. | Overcurrent-tripping device for circuit breaker |
| CN101231926A (en) * | 2008-02-21 | 2008-07-30 | 江苏西蒙智控设备有限公司 | Actuating mechanism of small size circuit breaker |
| CN201167033Y (en) * | 2008-03-26 | 2008-12-17 | 华通机电集团有限公司 | Movable contact system for a circuit breaker |
| CN202443925U (en) * | 2012-02-10 | 2012-09-19 | 上海巢安电气有限公司 | Small circuit breaker |
-
2012
- 2012-02-10 CN CN2012100305369A patent/CN102568944A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01311529A (en) * | 1988-06-08 | 1989-12-15 | Mitsubishi Electric Corp | Opening/closing mechanism for circuit breaker |
| CN1056185A (en) * | 1990-04-07 | 1991-11-13 | 费尔腾和古伊勒奥梅能源股份公司 | Fault current protective switch in modular design |
| JPH04315728A (en) * | 1991-03-28 | 1992-11-06 | Mitsubishi Electric Corp | Circuit breaker |
| JP2000208020A (en) * | 1998-11-10 | 2000-07-28 | Mitsubishi Electric Corp | Circuit breaker |
| US6310528B1 (en) * | 1999-05-25 | 2001-10-30 | Fuji Electric Co., Ltd. | Overcurrent-tripping device for circuit breaker |
| CN101231926A (en) * | 2008-02-21 | 2008-07-30 | 江苏西蒙智控设备有限公司 | Actuating mechanism of small size circuit breaker |
| CN201167033Y (en) * | 2008-03-26 | 2008-12-17 | 华通机电集团有限公司 | Movable contact system for a circuit breaker |
| CN202443925U (en) * | 2012-02-10 | 2012-09-19 | 上海巢安电气有限公司 | Small circuit breaker |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485267A (en) * | 2014-12-19 | 2015-04-01 | 常熟开关制造有限公司(原常熟开关厂） | Contact arc extinguishing device for low voltage circuit breaker |
| CN109727831A (en) * | 2017-10-31 | 2019-05-07 | 浙江正泰电器股份有限公司 | Breaker |
| CN109727831B (en) * | 2017-10-31 | 2024-06-04 | 浙江正泰电器股份有限公司 | Circuit breaker |
| CN110277286A (en) * | 2018-03-13 | 2019-09-24 | 浙江思创电力科技股份有限公司 | A kind of breaker mechanism |
| CN110233084A (en) * | 2019-06-28 | 2019-09-13 | 武汉长海电气科技开发有限公司 | D.C. contactor is pressed in one kind |
| CN110233084B (en) * | 2019-06-28 | 2024-04-30 | 武汉长海电气科技开发有限公司 | Medium-voltage direct-current contactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20120711 Assignee: GACIA ELECTRICAL APPLIANCE CO., LTD. Assignor: Shanghai Chaoan Electrical Co., Ltd. Contract record no.: 2013330000127 Denomination of invention: Small circuit breaker with protection of electric leakage, overload and short circuit License type: Exclusive License Record date: 20130508 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yu Jinrong Inventor after: Yu Zhengyang Inventor after: Gao Hanlin Inventor after: Wu Shiqing Inventor before: Yu Jinrong Inventor before: Yu Zhengyang Inventor before: Gao Hanlin |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YU JINRONG YU ZHENGYANG GAO HANLIN TO: YU JINRONG YU ZHENGYANG GAO HANLIN WU SHIQING |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: GACIA ELECTRICAL APPLIANCE CO., LTD. Assignor: Shanghai Chaoan Electrical Co., Ltd. Contract record no.: 2013330000127 Date of cancellation: 20140624 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120711 |