CN204651276U - A kind of Novel small-sized circuit breaker - Google Patents
A kind of Novel small-sized circuit breaker Download PDFInfo
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- CN204651276U CN204651276U CN201520420039.9U CN201520420039U CN204651276U CN 204651276 U CN204651276 U CN 204651276U CN 201520420039 U CN201520420039 U CN 201520420039U CN 204651276 U CN204651276 U CN 204651276U
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- fixed contact
- contact
- tripping
- magnetic conductive
- tripping coil
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Abstract
The utility model discloses a kind of Novel small-sized circuit breaker, comprise housing, and be located at the contact system in described housing, hot tripping system and electromagnetic tripping system; Described contact system comprises moving contact and fixed contact; Described electromagnetic tripping system is located at the top of arc control device, and it comprises tripping coil and magnetic conductive board, and described tripping coil welds with described fixed contact; Described magnetic conductive board forms the contact feet contacting conducting with fixed contact.In miniature circuit breaker of the present utility model, tripping coil is welded with fixed contact, and magnetic conductive board contacts conducting by the contact feet on it with fixed contact, by twice spot welding herein in prior art, (tripping coil welds with magnetic conductive board, magnetic conductive board welds with fixed contact) make a spot welding (only tripping coil need be welded with fixed contact) into, thus high temperature, on the impact of tripping coil, avoids the problem that generation tripping coil causes local temperature to raise by temperatures involved local conductive section diminishes when reducing spot welding.
Description
Technical field
The utility model relates to a kind of miniature circuit breaker.
Background technology
The electromagnetic tripping system major function of miniature circuit breaker be when circuit be short-circuited or large transient current time, the magnetic field that the tripping coil of electromagnetic tripping system produces drives dynamic iron core, promotes operating mechanism, makes product separating brake, line disconnection fault current.In prior art, electromagnetic tripping system is when assembling, tripping coil and magnetic conductive board spot welding, magnetic conductive board again with fixed contact spot welding, in same position twice point welding process, tripping coil is by spot welding temperatures involved, and tripping coil local conductive section diminishes, temperature rise rising.
Utility model content
To this, electromagnetic tripping system tripping coil when assembling that the utility model is intended to solve existing miniature circuit breaker can diminish by its local conductive section of spot welding temperatures involved, and then the problem causing temperature rise to raise.
The technical scheme realizing the utility model object is:
A kind of miniature circuit breaker, comprises housing, and is located at the contact system in described housing, hot tripping system and electromagnetic tripping system; Described contact system comprises moving contact and fixed contact; Described electromagnetic tripping system is located at the top of arc control device, and it comprises tripping coil and magnetic conductive board, and described tripping coil welds with described fixed contact; Described magnetic conductive board forms the contact feet contacting conducting with described fixed contact.
In technique scheme, form support boss in described housing, described contact feet is clamped between described support boss and described fixed contact.
In technique scheme, the position that described fixed contact welds with described tripping coil is provided with multiple double wedge being convenient to weld.
In technique scheme, described fixed contact and described magnetic conductive board form the arc leading angle being beneficial to and electric arc being introduced described arc control device.
The utility model has positive effect:
(1) in miniature circuit breaker of the present utility model, described tripping coil is welded with described fixed contact, and described magnetic conductive board contacts conducting by the contact feet on it with fixed contact, by twice spot welding herein in prior art, (tripping coil welds with magnetic conductive board, magnetic conductive board welds with fixed contact) make a spot welding (only tripping coil need be welded with fixed contact) into, thus high temperature, on the impact of tripping coil, avoids the problem that generation tripping coil causes local temperature rise to raise by temperatures involved local conductive section diminishes when reducing spot welding.
(2), in the utility model, described contact feet is clamped in be supported, between boss and fixed contact, can effectively avoid contact feet to be separated with fixed contact, thus ensures that magnetic conductive board and described fixed contact can remain conducting state.
(3), in the utility model, described fixed contact is arranged double wedge and the connection of described fixed contact and described tripping coil can be made more convenient, firm, because teeth portion more easily melts when spot welding.
(4) in the utility model, described fixed contact and described magnetic conductive board are equipped with arc leading angle, are conducive to guiding the electric arc resulted between described moving contact and described fixed contact to enter in arc control device faster, thus improve the arc extinction performance of product.
Accompanying drawing explanation
Fig. 1 is the interior views of miniature circuit breaker of the present utility model;
Fig. 2 is the partial enlarged view at A place in Fig. 1;
Fig. 3 is in the utility model, the structural representation of described electromagnetic tripping system;
Fig. 4 is in the utility model, the structural representation of described fixed contact;
Fig. 5 is in the utility model, the structural representation of described magnetic conductive board;
Fig. 6 is in the utility model, the structural representation of described thermal element.
Reference numeral shown in figure is: 1-housing; 11-supports boss; 2-moving contact; 3-fixed contact; 31-double wedge; 4-thermal element; 41--location hole; 5-bimetal leaf; 6-arc control device; 61-tripping coil; 62-magnetic conductive board; 63-contact feet; 7-arc leading angle; 8-connector assembly.
Embodiment
Do to illustrate below in conjunction with the concrete structure of Figure of description to miniature circuit breaker of the present utility model:
A kind of miniature circuit breaker, as shown in figures 1 and 3, it comprises housing 1, and is located at the contact system in described housing 1, hot tripping system and electromagnetic tripping system; Described contact system comprises moving contact 2 and fixed contact 3; Described electromagnetic tripping system is located at the top of arc control device 6, and it comprises tripping coil 61 and magnetic conductive board 62, and described tripping coil 61 welds with described fixed contact 3; Described magnetic conductive board 62 forms the contact feet 63 contacting conducting with described fixed contact 3.In the miniature circuit breaker of the present embodiment, described tripping coil 61 is welded with described fixed contact 3, and described magnetic conductive board 62 contacts conducting by the contact feet 63 on it with fixed contact 3, by twice spot welding herein in prior art, (tripping coil 61 welds with magnetic conductive board 62, magnetic conductive board 62 welds with fixed contact 3) make a spot welding (only tripping coil 61 need be welded with fixed contact 3) into, thus high temperature, on the impact of tripping coil 61, avoids the problem that generation tripping coil 61 causes local temperature rise to raise by temperatures involved local conductive section diminishes when reducing spot welding.
In the present embodiment, form in described housing 1 and support boss 11, described contact feet 63 is clamped between described support boss 11 and described fixed contact 3; Such setting, namely described contact feet 63 is clamped spacing, can effectively avoid contact feet 63 to be separated with fixed contact 3, thus can ensure that magnetic conductive board 62 and described fixed contact 3 remain conducting state, referring specifically to Fig. 2.
Further, the position that described fixed contact 3 welds with described tripping coil 61 is provided with multiple double wedge 31 being convenient to weld, referring specifically to Fig. 4, described fixed contact 3 can be made more convenient with the connection of described tripping coil 61 by arranging double wedge on described fixed contact 3, firm, because teeth portion more easily melts when spot welding, avoid rosin joint.
Composition graphs 4 and Fig. 5, further again, described fixed contact 3 and described magnetic conductive board 62 form the arc leading angle 7 being beneficial to and electric arc being introduced described arc control device 6, can be conducive to by adopting this kind of structure guiding result from electric arc between described moving contact 2 and described fixed contact 3 more F.F. enter in arc control device 6, thus improve the arc extinction performance of product.
In addition, described hot tripping system comprises thermal element 4 and bimetal leaf 5; Described thermal element 4 is electrically connected with the connector assembly 8 closing on it, and the bottom of described thermal element 4 and the bottom of described bimetal leaf 5 are welded and fixed; Described thermal element 4 and described bimetal leaf 5 are flexible coupling respectively by one and are connected with described moving contact 2.Adopt this structure, electric current is shunted through bimetal leaf 5 and thermal element 4, effectively can reduce temperature rise, slightly be flexible coupling by original one simultaneously and change two bursts of thin being flexible coupling into, can effectively avoid being flexible coupling hindering interferes bimetal leaf 5 to bend, these low profile thermal tripping system time-delay characteristics are more stable, and when bearing great current, effect is particularly evident.
Referring to Fig. 6, also reference column is formed in described housing 1 in the present embodiment, described thermal element 4 then forms the location hole 41 coordinated with described reference column, hot tripping system Fast Installation can be conducive to by adopting this location structure and put in place, improve Product Assembly efficiency.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And these belong to connotation of the present utility model the apparent change of extending out or variation still belong to protection range of the present utility model.
Claims (4)
1. a Novel small-sized circuit breaker, comprises housing (1), and is located at the contact system in described housing (1), hot tripping system and electromagnetic tripping system; Described contact system comprises moving contact (2) and fixed contact (3); It is characterized in that: described electromagnetic tripping system is located at the top of arc control device (6), it comprises tripping coil (61) and magnetic conductive board (62), and described tripping coil (61) welds with described fixed contact (3); Described magnetic conductive board (62) forms the contact feet (63) contacting conducting with described fixed contact (3).
2. Novel small-sized circuit breaker according to claim 1, it is characterized in that: form in described housing (1) and support boss (11), described contact feet (63) is clamped between described support boss (11) and described fixed contact (3).
3. Novel small-sized circuit breaker according to claim 2, is characterized in that: the upper position of welding with described tripping coil (61) of described fixed contact (3) is provided with multiple double wedge (31) being convenient to weld.
4. Novel small-sized circuit breaker according to claim 3, is characterized in that: described fixed contact (3) and described magnetic conductive board (62) form the arc leading angle (7) being beneficial to and electric arc being introduced described arc control device (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520420039.9U CN204651276U (en) | 2015-06-17 | 2015-06-17 | A kind of Novel small-sized circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520420039.9U CN204651276U (en) | 2015-06-17 | 2015-06-17 | A kind of Novel small-sized circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204651276U true CN204651276U (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520420039.9U Active CN204651276U (en) | 2015-06-17 | 2015-06-17 | A kind of Novel small-sized circuit breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN204651276U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109427511A (en) * | 2017-08-22 | 2019-03-05 | 浙江正泰电器股份有限公司 | Breaker |
| CN109767958A (en) * | 2019-02-15 | 2019-05-17 | 黄河科技学院 | an electronic circuit breaker |
-
2015
- 2015-06-17 CN CN201520420039.9U patent/CN204651276U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109427511A (en) * | 2017-08-22 | 2019-03-05 | 浙江正泰电器股份有限公司 | Breaker |
| CN109427511B (en) * | 2017-08-22 | 2024-03-26 | 浙江正泰电器股份有限公司 | Circuit breaker |
| CN109767958A (en) * | 2019-02-15 | 2019-05-17 | 黄河科技学院 | an electronic circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |