CN104143492A - Small circuit breaker with wire holder assisting in arc extinguishment - Google Patents
Small circuit breaker with wire holder assisting in arc extinguishment Download PDFInfo
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- CN104143492A CN104143492A CN201410372251.2A CN201410372251A CN104143492A CN 104143492 A CN104143492 A CN 104143492A CN 201410372251 A CN201410372251 A CN 201410372251A CN 104143492 A CN104143492 A CN 104143492A
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- arc
- circuit breaker
- hole
- miniature circuit
- junction block
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Abstract
The invention relates to a small circuit breaker with a wire holder assisting in arc extinguishment. The small circuit breaker solves the problem that an existing small circuit breaker is poor in arc extinguishing effect. The small circuit breaker comprises a shell, an arc extinguishing chamber and a wiring terminal are arranged in the shell, a partition plate used for partitioning the arc extinguishing chamber and the wiring terminal is arranged on the shell, air diffusion holes are formed in the positions, close to the wiring terminal, of the arc extinguishing chamber, communicating holes corresponding to the air diffusion holes are formed in the partition plate, the wiring terminal comprises a wire frame used for containing a wire and a binding post used for fixing the wire to the wire frame, and at least one overflow hole communicated with the communicating holes is formed in the wire frame. The small circuit breaker has the advantages that the communicating holes are additionally formed in the partition plate, and the overflow holes are formed in the wire frame, so that heat generated in the arc extinguishing chamber can be emitted out of the shell through the wiring terminal, discharge of heat of the arc extinguishing chamber is accelerated, and the arc extinguishing performance of the product is guaranteed.
Description
Technical field
The present invention relates to a kind of circuit breaker, be specifically related to a kind of miniature circuit breaker of junction block auxiliary extinction of arc.
Background technology
Miniature circuit breaker is used as office building, house and the similarly overload of illumination, distribution line and the equipment of building and short-circuit protection; also can be used as the use of the frequent make-break operation of circuit and conversion; be mainly used in the various places such as industry, business, high level and residential houses, there is strong, the aesthetic in appearance feature such as small and exquisite of structure advanced person, dependable performance, breaking capacity.Common small sized circuit breaker is by mechanical method, the moving contact of miniature circuit breaker and fixed contact to be separated while cut-offfing circuit.While combined floodgate, make moving contact and fixed contact closure with contrary mechanical movement.In the time connecting and cut-off the operation of load circuit, between fixed contact and moving contact, will produce electric arc.The electric arc that interrupting process produces is much more serious than making process.When the electric current cut-offfing is very large, while particularly cut-offfing short circuit, electric arc is very large, and open circuit is often very difficult.
Thereby existing miniature circuit breaker is owing to existing voltage to form electric arc between dynamic and static contact in separation process, electric arc enters the arc control device of arc quenching system under the effects such as magnetic blow-out effect and aerodynamic force, the electric arc that enters arc control device is also claimed metal gate sheet to be divided into the short arc of some series connection by the arc extinguishing grid pieces being equidistantly spaced along electric arc direction in arc control device, thereby make electric arc fast cooling and improve rapidly arc drop, reach the object of blow-out.Electric arc when being extinguished, can produce heat in arc control device, and if these heats can not leave in time, can affect follow-up arc extinguishing.
Summary of the invention
For solving the poor problem of existing miniature circuit breaker arc quenching effect in background technology, the invention provides a kind of miniature circuit breaker of junction block auxiliary extinction of arc.
Technical scheme of the present invention is: a kind of miniature circuit breaker of junction block auxiliary extinction of arc, comprise housing, in described housing, be provided with contact system, arc quenching system and binding post, described arc quenching system comprises arc control device and is located at the multi-disc arc extinguishing grid pieces in arc control device, described housing is provided with for by arc control device and the separated dividing plate of binding post, described contact system comprises fixed contact and moving contact, on described fixed contact, be connected with arc striking piece, described arc striking piece is located at the upper end of arc control device, described arc control device are having air dispelling hole near binding post place, described dividing plate is provided with the intercommunicating pore corresponding with air dispelling hole, described binding post comprises for the wire frame of accommodating wire with by wire and is fixed on the binding post on wire frame, on described wire frame, be at least provided with an overfolw hole communicating with intercommunicating pore.
As a modification of the present invention, described overfolw hole is L-type.
As a further improvement on the present invention, described overfolw hole has two.
As a further improvement on the present invention, being distributed on wire frame of described overfolw hole symmetry.
As a further improvement on the present invention, described housing is provided with through hole, between described through hole and the air dispelling hole of arc control device, is provided with heat dissipation channel, in described heat dissipation channel, is provided with flash barrier, and described flash barrier is provided with air vent hole.
As a further improvement on the present invention, be provided with heat radiation division board in described housing, described heat radiation division board is along heat dissipation channel setting and heat dissipation channel is divided into multiple tracks.
As a further improvement on the present invention, described heat radiation division board is provided with bootstrap block, and described bootstrap block is corresponding with the intercommunicating pore on dividing plate.
As a further improvement on the present invention, described flash barrier is S-shaped and be integral type structure.
As a further improvement on the present invention, in described housing, be provided with magnetic patch, described magnetic patch is located on arc striking piece and is corresponding with moving contact.
As a further improvement on the present invention, described arc striking piece is provided with U-shaped portion, and the U-shaped portion on described magnetic patch and arc striking piece fits.
The invention has the beneficial effects as follows, on dividing plate, set up intercommunicating pore, on wire frame, be provided with overfolw hole, make the heat that produces in arc control device can be outside binding post is dispersed into housing, thereby the heat of having accelerated arc control device be discharged the arc extinction performance that ensures product.The present invention also has simple in structure, produces, easy to assembly dependable performance, the advantage such as arc quenching effect is good.
Brief description of the drawings
The structural representation that accompanying drawing 1 is the embodiment of the present invention.
Accompanying drawing 2 is the structural representation in accompanying drawing 1 middle shell 1.
Accompanying drawing 3 is the front view of accompanying drawing 2.
Accompanying drawing 4 is the structural representation of wire frame 41 in accompanying drawing 3.
Accompanying drawing 5 is the structure enlarged drawing at I place in accompanying drawing 2.
In figure, 1, housing; 11, through hole; 12, heat dissipation channel; 13, heat radiation division board; 131, bootstrap block; 2, contact system; 21, fixed contact; 22, moving contact; 23, arc striking piece; 231, U-shaped portion; 3, arc quenching system; 31, arc control device; 311, air dispelling hole; 32, arc extinguishing grid pieces; 4, binding post; 41, wire frame; 411, overfolw hole; 42, binding post; 5, dividing plate; 51, intercommunicating pore; 6, flash barrier; 61, air vent hole; 7, magnetic patch.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention is further illustrated:
By Fig. 1 in conjunction with Fig. 2, 3, 4, shown in 5, a kind of miniature circuit breaker of junction block auxiliary extinction of arc, comprise housing 1, in described housing 1, be provided with contact system 2, arc quenching system 3 and binding post 4, described arc quenching system 3 comprises arc control device 31 and is located at the multi-disc arc extinguishing grid pieces 32 in arc control device 31, described housing 1 is provided with for by arc control device 31 and the separated dividing plate 5 of binding post 4, described contact system 2 comprises fixed contact 21 and moving contact 22, on described fixed contact 21, be connected with arc striking piece 23, described arc striking piece 23 is located at the upper end of arc control device 31, described arc control device 31 are having air dispelling hole 311 near binding post 4 places, described dividing plate 5 is provided with the intercommunicating pore corresponding with air dispelling hole 311 51, described binding post 4 comprises for the wire frame 41 of accommodating wire with by wire and is fixed on the binding post 42 on wire frame 41, on described wire frame 41, be at least provided with an overfolw hole 411 communicating with intercommunicating pore 51.The invention has the beneficial effects as follows, on dividing plate, set up intercommunicating pore, on wire frame, be provided with overfolw hole, make the heat that produces in arc control device can be outside binding post is dispersed into housing, thereby the heat of having accelerated arc control device be discharged the arc extinction performance that ensures product.The present invention also has simple in structure, produces, easy to assembly dependable performance, the advantage such as arc quenching effect is good.
Described overfolw hole 411 is L-type.Certainly, overfolw hole can be also other shapes.In particular, described overfolw hole 411 has two, and certainly overfolw hole can be one or three, four etc.In particular, in the time that overfolw hole is even number, being distributed on wire frame 41 of described overfolw hole 411 symmetries, such structure is convenient to the installation of wire frame.
Described housing 1 is provided with through hole 11, between described through hole 11 and the air dispelling hole 311 of arc control device 31, is provided with heat dissipation channel 12, in described heat dissipation channel 12, is provided with flash barrier 6, and described flash barrier 6 is provided with air vent hole 61.Specifically, be provided with heat radiation division board 13 in described housing 1, described heat radiation division board 13 arranges and heat dissipation channel 12 is divided into multiple tracks along heat dissipation channel 12.On housing, set up through hole, through hole is connected with arc control device, the heat that arc control device produce in the time of arc extinguishing can be discharged outside housing fast, ensure the arc extinction performance of product, set up flash barrier simultaneously, made a small amount of electric arc with heat discharge, after flash barrier, played the effect of blow-out, air vent hole has ensured being communicated with of housing through-hole and arc control device, is convenient to the effect of the discharge of heat and the arc extinguishing that can get up.In particular, described flash barrier 6 is S-shaped and be integral type structure.Such structure is convenient to the installation of flash barrier.Certainly, in actual production process, flash barrier can be multi-disc, and multi-disc flash barrier parallel equidistant is located in heat dissipation channel.
Described heat radiation division board 13 is provided with bootstrap block 131, and described bootstrap block 131 is corresponding with the intercommunicating pore 51 on dividing plate 5.Such structure can be discharged housing through the overfolw hole of wire frame from the intercommunicating pore of dividing plate by leader heat.
In described housing 1, be provided with magnetic patch 7, described magnetic patch 7 is located on arc striking piece 23 and is corresponding with moving contact 22.Specifically, described arc striking piece 23 is provided with U-shaped portion 231, and described magnetic patch 7 fits with the U-shaped portion 231 on arc striking piece 23.In particular, described magnetic patch adopts ndfeb magnet.The present invention is provided with magnetic patch, make product in the time that the dynamic and static contact of disjunction produces electric arc, magnetic patch can produce magnetic force and make arc energy enter sooner, more reliably arc control device, increase the striking effect of product, and also have with the magnetic patch that arc striking piece fits that structure is simpler, production cost is lower, striking better effects if.
Every technical staff's notice: although the present invention describes according to above-mentioned embodiment, invention of the present invention is thought advantage and wanted to be not limited in this invention, and the repacking of any utilization inventive concept, all will include in this patent scope of patent protection.
Claims (10)
1. the miniature circuit breaker of a junction block auxiliary extinction of arc, comprise housing (1), in described housing (1), be provided with contact system (2), arc quenching system (3) and binding post (4), described arc quenching system (3) comprises arc control device (31) and is located at the multi-disc arc extinguishing grid pieces (32) in arc control device (31), described housing (1) is provided with for by arc control device (31) and the separated dividing plate of binding post (4) (5), described contact system (2) comprises fixed contact (21) and moving contact (22), on described fixed contact (21), be connected with arc striking piece (23), described arc striking piece (23) is located at the upper end of arc control device (31), it is characterized in that: described arc control device (31) are locating to have air dispelling hole (311) near binding post (4), described dividing plate (5) is provided with the intercommunicating pore (51) corresponding with air dispelling hole (311), described binding post (4) comprises the wire frame (41) for accommodating wire and wire is fixed on to the binding post (42) on wire frame (41), on described wire frame (41), be at least provided with an overfolw hole (411) communicating with intercommunicating pore (51).
2. the miniature circuit breaker of a kind of junction block auxiliary extinction of arc according to claim 1, is characterized in that described overfolw hole (411) is L-type.
3. the miniature circuit breaker of a kind of junction block auxiliary extinction of arc according to claim 1 and 2, is characterized in that described overfolw hole (411) has two.
4. the miniature circuit breaker of a kind of junction block auxiliary extinction of arc according to claim 3, is characterized in that symmetrical being distributed on wire frame (41) of described overfolw hole (411).
5. the miniature circuit breaker of a kind of junction block auxiliary extinction of arc according to claim 1, it is characterized in that described housing (1) is provided with through hole (11), between described through hole (11) and the air dispelling hole (311) of arc control device (31), be provided with heat dissipation channel (12), in described heat dissipation channel (12), be provided with flash barrier (6), described flash barrier (6) is provided with air vent hole (61).
6. the miniature circuit breaker of a kind of junction block auxiliary extinction of arc according to claim 5, it is characterized in that being provided with heat radiation division board (13) in described housing (1), described heat radiation division board (13) arranges and heat dissipation channel (12) is divided into multiple tracks along heat dissipation channel (12).
7. the miniature circuit breaker of a kind of junction block auxiliary extinction of arc according to claim 5, is characterized in that described heat radiation division board (13) is provided with bootstrap block (131), and described bootstrap block (131) is corresponding with the intercommunicating pore (51) on dividing plate (5).
8. the miniature circuit breaker of a kind of junction block auxiliary extinction of arc according to claim 5, is characterized in that described flash barrier (6) is S-shaped and is integral type structure.
9. the miniature circuit breaker of a kind of junction block auxiliary extinction of arc according to claim 1, is characterized in that being provided with magnetic patch (7) in described housing (1), and it is upper and corresponding with moving contact (22) that described magnetic patch (7) is located at arc striking piece (23).
10. the miniature circuit breaker of a kind of junction block auxiliary extinction of arc according to claim 9, is characterized in that described arc striking piece (23) is provided with U-shaped portion (231), and described magnetic patch (7) fits with the U-shaped portion (231) on arc striking piece (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410372251.2A CN104143492B (en) | 2014-07-31 | 2014-07-31 | A kind of miniature circuit breaker of junction block auxiliary extinction of arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410372251.2A CN104143492B (en) | 2014-07-31 | 2014-07-31 | A kind of miniature circuit breaker of junction block auxiliary extinction of arc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104143492A true CN104143492A (en) | 2014-11-12 |
| CN104143492B CN104143492B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410372251.2A Active CN104143492B (en) | 2014-07-31 | 2014-07-31 | A kind of miniature circuit breaker of junction block auxiliary extinction of arc |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098459A (en) * | 2016-07-08 | 2016-11-09 | 浙江精开电气有限公司 | Chopper |
| WO2017206580A1 (en) * | 2016-05-31 | 2017-12-07 | 乐清市也为电气有限公司 | Miniature circuit breaker |
| CN110459446A (en) * | 2019-08-22 | 2019-11-15 | 浙江中亿豪科技有限公司 | It is a kind of can effectively arc extinguishing more Wiring type miniature circuit breakers |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007324038A (en) * | 2006-06-02 | 2007-12-13 | Mitsubishi Electric Corp | Circuit breaker |
| CN201549460U (en) * | 2009-11-19 | 2010-08-11 | 杭州鸿雁盖伊尔电器有限公司 | Circuit breaker |
| EP2393095A2 (en) * | 2010-06-04 | 2011-12-07 | LSIS Co., Ltd. | Mold cased circuit brreaker |
| CN202917419U (en) * | 2012-12-07 | 2013-05-01 | 陈通朴 | Direct current breaker with double arc-isolating plates |
| CN203631461U (en) * | 2013-11-15 | 2014-06-04 | 嘉兴市加控电气设备制造有限公司 | Mini circuit breaker |
| CN204011327U (en) * | 2014-07-31 | 2014-12-10 | 华通机电股份有限公司 | A kind of miniature circuit breaker of junction block auxiliary extinction of arc |
-
2014
- 2014-07-31 CN CN201410372251.2A patent/CN104143492B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007324038A (en) * | 2006-06-02 | 2007-12-13 | Mitsubishi Electric Corp | Circuit breaker |
| CN201549460U (en) * | 2009-11-19 | 2010-08-11 | 杭州鸿雁盖伊尔电器有限公司 | Circuit breaker |
| EP2393095A2 (en) * | 2010-06-04 | 2011-12-07 | LSIS Co., Ltd. | Mold cased circuit brreaker |
| CN202917419U (en) * | 2012-12-07 | 2013-05-01 | 陈通朴 | Direct current breaker with double arc-isolating plates |
| CN203631461U (en) * | 2013-11-15 | 2014-06-04 | 嘉兴市加控电气设备制造有限公司 | Mini circuit breaker |
| CN204011327U (en) * | 2014-07-31 | 2014-12-10 | 华通机电股份有限公司 | A kind of miniature circuit breaker of junction block auxiliary extinction of arc |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017206580A1 (en) * | 2016-05-31 | 2017-12-07 | 乐清市也为电气有限公司 | Miniature circuit breaker |
| CN106098459A (en) * | 2016-07-08 | 2016-11-09 | 浙江精开电气有限公司 | Chopper |
| CN106098459B (en) * | 2016-07-08 | 2018-01-16 | 浙江精开电气有限公司 | Breaker |
| CN110459446A (en) * | 2019-08-22 | 2019-11-15 | 浙江中亿豪科技有限公司 | It is a kind of can effectively arc extinguishing more Wiring type miniature circuit breakers |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104143492B (en) | 2016-03-30 |
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