CN104143492B - A kind of miniature circuit breaker of junction block auxiliary extinction of arc - Google Patents
A kind of miniature circuit breaker of junction block auxiliary extinction of arc Download PDFInfo
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- CN104143492B CN104143492B CN201410372251.2A CN201410372251A CN104143492B CN 104143492 B CN104143492 B CN 104143492B CN 201410372251 A CN201410372251 A CN 201410372251A CN 104143492 B CN104143492 B CN 104143492B
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Abstract
A kind of miniature circuit breaker of junction block auxiliary extinction of arc.Solve the problem of existing miniature circuit breaker arc quenching effect difference.It comprises housing, arc control device and binding post is provided with in described housing, described housing is provided with for by arc control device and the separated dividing plate of binding post, 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 and the binding post that is fixed on by wire on wire frame, described wire frame is at least provided with an overfolw hole communicated with intercommunicating pore.The invention has the beneficial effects as follows, dividing plate has been set up intercommunicating pore, wire frame is provided with overfolw hole, makes the heat produced in arc control device can be dispersed into outside housing from binding post, the heat accelerating arc control device is discharged thus ensures the arc extinction performance of product.
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 does the illumination of office building, house and similar building, the overload of distribution line and equipment and short-circuit protection; also can be used as the use of circuit infrequently make-break operation 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 the method for machinery, the moving contact of miniature circuit breaker is separated with fixed contact when cut-offfing circuit.Then with contrary mechanical movement, moving contact and fixed contact are closed when closing a floodgate.When carrying out the operation of connecting and cut-offfing load circuit, between fixed contact and moving contact, electric arc will be produced.The electric arc that interrupting process produces is much more serious than making process.When the electric current cut-off is very large, when particularly cut-offfing short circuit, electric arc is very large, and open circuit is often very difficult.
Owing to there is voltage between dynamic and static contact thus form electric arc in separation process in existing miniature circuit breaker, 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 entering arc control device is also claimed metal grid to be divided into the short arc of some series connection by the arc extinguishing grid pieces be equidistantly spaced along electric arc direction in arc control device, thus make electric arc cool fast and improve arc drop rapidly, reach the object of blow-out.Electric arc in arc control device by extinguishing time, can heat be produced, and if these heats can not leave in time, then can affect follow-up arc extinguishing.
Summary of the invention
For solving the problem of existing miniature circuit breaker arc quenching effect difference 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, contact system is provided with in described housing, 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, described fixed contact is 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 and the binding post that is fixed on by wire on wire frame, described wire frame is at least provided with an overfolw hole communicated 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, is provided with heat dissipation channel between described through hole and the air dispelling hole of arc control device, is provided with flash barrier in described heat dissipation channel, 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 arranges along heat dissipation channel 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, be provided with magnetic patch in described housing, described magnetic patch to be located on arc striking piece and 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, dividing plate has been set up intercommunicating pore, wire frame is provided with overfolw hole, makes the heat produced in arc control device can be dispersed into outside housing from binding post, the heat accelerating arc control device is discharged thus ensures the arc extinction performance of product.It is simple that the present invention also has structure, produces, easy to assembly, dependable performance, the advantages such as arc quenching effect is good.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of 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 schematic enlarged-scale view at I place in accompanying drawing 2.
In figure, 1, housing; 11, through hole; 12, heat dissipation channel; 13, dispel the heat 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 composition graphs 2, 3, 4, shown in 5, a kind of miniature circuit breaker of junction block auxiliary extinction of arc, comprise housing 1, contact system 2 is provided with in described housing 1, arc quenching system 3 and binding post 4, the multi-disc arc extinguishing grid pieces 32 that described arc quenching system 3 comprises arc control device 31 and is located 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, described fixed contact 21 is 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 place, described dividing plate 5 is provided with the intercommunicating pore 51 corresponding with air dispelling hole 311, described binding post 4 comprises for the wire frame 41 of accommodating wire and the binding post 42 that is fixed on by wire on wire frame 41, described wire frame 41 is at least provided with an overfolw hole 411 communicated with intercommunicating pore 51.The invention has the beneficial effects as follows, dividing plate has been set up intercommunicating pore, wire frame is provided with overfolw hole, makes the heat produced in arc control device can be dispersed into outside housing from binding post, the heat accelerating arc control device is discharged thus ensures the arc extinction performance of product.It is simple that the present invention also has structure, produces, easy to assembly, dependable performance, the advantages such as arc quenching effect is good.
Described overfolw hole 411 is in L-type.Certainly, overfolw hole also can be other shapes.In particular, described overfolw hole 411 has two, and certain overfolw hole can be one or three, four etc.In particular, when overfolw hole is even number, described overfolw hole 411 symmetry be distributed on wire frame 41, such structure is convenient to the installation of wire frame.
Described housing 1 is provided with through hole 11, is provided with heat dissipation channel 12 between described through hole 11 and the air dispelling hole 311 of arc control device 31, is provided with flash barrier 6 in described heat dissipation channel 12, 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 along heat dissipation channel 12 and heat dissipation channel 12 is divided into multiple tracks.Housing has been set up through hole, through hole is connected with arc control device, the heat that arc control device are produced when 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 of discharging with heat, after flash barrier, play the effect of blow-out, air vent hole ensure that being communicated with of housing through-hole and arc control device, is convenient to the discharge of heat and the effect of 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 from the intercommunicating pore of dividing plate through the overfolw hole of wire frame by leader heat.
Be provided with magnetic patch 7 in described housing 1, described magnetic patch 7 to be located on arc striking piece 23 and 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 when the dynamic and static contact of disjunction produces electric arc, magnetic patch can produce magnetic force and make arc energy enter arc control device sooner, more reliably, increase the striking effect of product, and also to 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 is 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 (8)
1. the miniature circuit breaker of a junction block auxiliary extinction of arc, comprise housing (1), contact system (2) is provided with in described housing (1), 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 binding post (4) separated dividing plate (5), described contact system (2) comprises fixed contact (21) and moving contact (22), described fixed contact (21) is 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 having air dispelling hole (311) near binding post (4) place, described dividing plate (5) is provided with the intercommunicating pore (51) corresponding with air dispelling hole (311), described binding post (4) comprises wire frame (41) for accommodating wire and the binding post (42) that is fixed on by wire on wire frame (41), described wire frame (41) is at least provided with an overfolw hole (411) communicated with intercommunicating pore (51), described housing (1) is provided with through hole (11), heat dissipation channel (12) is provided with between described through hole (11) and the air dispelling hole (311) of arc control device (31), flash barrier (6) is provided with in described heat dissipation channel (12), described flash barrier (6) is provided with air vent hole (61), heat radiation division board (13) is provided with in described housing (1), described heat radiation division board (13) is provided with bootstrap block (131), described bootstrap block (131) is corresponding with the intercommunicating pore (51) on dividing plate (5).
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 in 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, is characterized in that described heat radiation division board (13) arranges along heat dissipation channel (12) and heat dissipation channel (12) is divided into multiple tracks.
6. the miniature circuit breaker of a kind of junction block auxiliary extinction of arc according to claim 1, is characterized in that described flash barrier (6) is S-shaped and for integral type structure.
7. 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).
8. the miniature circuit breaker of a kind of junction block auxiliary extinction of arc according to claim 7, 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 CN104143492A (en) | 2014-11-12 |
| CN104143492B true CN104143492B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826143B (en) * | 2016-05-31 | 2019-02-15 | 乐清市也为电气有限公司 | A kind of miniaturization breaker |
| CN106098459B (en) * | 2016-07-08 | 2018-01-16 | 浙江精开电气有限公司 | Breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007324038A (en) * | 2006-06-02 | 2007-12-13 | Mitsubishi Electric Corp | Circuit breaker |
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2014
- 2014-07-31 CN CN201410372251.2A patent/CN104143492B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104143492A (en) | 2014-11-12 |
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