CN204144201U - A kind of have the arc quenching chamber structure strengthening magnetic field function - Google Patents
A kind of have the arc quenching chamber structure strengthening magnetic field function Download PDFInfo
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- CN204144201U CN204144201U CN201420627661.2U CN201420627661U CN204144201U CN 204144201 U CN204144201 U CN 204144201U CN 201420627661 U CN201420627661 U CN 201420627661U CN 204144201 U CN204144201 U CN 204144201U
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- arc
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- magnetic conductor
- chamber structure
- quenching chamber
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Abstract
A kind of have the arc quenching chamber structure strengthening magnetic field function, the utility model arranges the first magnetic conductor in static contact component, cage both sides arrange the second magnetic conductor, under short circuit current, opened obvious facilitation to scolding of moving contact, and after generation electric arc, can under the effect of magnetic field electromagnetic force, promote electric arc and enter arc control device fast, prevent electric arc disorderly string, significantly improve arc quenching effect, effective shortening circuit breaker arcing time, improve the short circuit breaking capacity of circuit breaker.
Description
Technical field
The utility model relates to low-voltage circuit breaker technical field, is specifically related to a kind of arc quenching chamber structure with enhancing magnetic field function.
Background technology
Low-voltage circuit breaker can be used as the short-circuit protection of circuit, and concerning current limiting type circuit breaker, when line short circuit current produces, moving contact can be scolded out before short circuit current reaches expection maximum, produced electric arc, the rising of limiting short-circuit current.The opening force of scolding of moving contact is the electrodynamic repulsion force mutually produced between the fixed contact conductor with reverse current, the magnetic field that this electrodynamic repulsion force induces indeed through electric current realizes, also electromagnetic force can be called, therefore stronger by dynamic/static contact surrounding magnetic field during short circuit current, moving contact just can more early be scolded out by electrodynamic repulsion force.The magnetic conductive media in the contact system generation magnetic field of general circuit breaker is air, and magnetic resistance is larger.
Scolded out by electrodynamic repulsion force at moving contact, after producing electric arc, arc control device internal gas pressure raises, due to stressed uncertainty, electric arc produces random phenomenon of going here and there under being easy to the gases at high pressure effect in arc control device, causes electric arc to be not easy to be extinguished, burning time is long, to the damage great efforts of circuit breaker.
Summary of the invention
In order to solve the deficiencies in the prior art, of the present utility model providing a kind ofly has the arc quenching chamber structure tool strengthening magnetic field function.
The technical solution that the utility model adopts is: a kind of have the arc quenching chamber structure strengthening magnetic field function, comprise arc control device assembly, static contact component, cage, described cage is also provided with some arc extinguishing grid pieces, the first magnetic conductor is provided with in described static contact component, the first described magnetic conductor is provided with the first clamping joint, and described cage both sides are also provided with the second magnetic conductor.
Described a kind of arc quenching chamber structure with enhancing magnetic field function, described static contact component is provided with U-shaped mounting groove, also be provided with installing hole above described U-shaped mounting groove, the first described magnetic conductor is connected in installing hole by the first clamping joint and is connected with static contact component clamping.
Described a kind of arc quenching chamber structure with enhancing magnetic field function, described cage both sides are provided with mounting groove, and the second described magnetic conductor is connected in mounting groove.
The beneficial effects of the utility model are: the utility model provides a kind of arc quenching chamber structure with enhancing magnetic field function, the utility model arranges the first magnetic conductor in static contact component, cage both sides arrange the second magnetic conductor, under short circuit current, obvious facilitation is opened to scolding of moving contact, and after generation electric arc, can under the effect of magnetic field electromagnetic force, promote electric arc and enter arc control device fast, prevent electric arc disorderly string, significantly improve arc quenching effect, effective shortening circuit breaker arcing time, improve the short circuit breaking capacity of circuit breaker.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model internal structure schematic diagram.
Fig. 3 is the utility model static contact component and the first magnetizer structure schematic diagram.
1-arc control device assembly in figure, 2-static contact component, 3-cage, 4-arc extinguishing grid pieces, 5-first magnetic conductor, 6-second magnetic conductor, 21-U type mounting groove, 22-installing hole, 31-mounting groove, 51-first clamping joint.
Embodiment
Existing composition graphs 1, Fig. 2, Fig. 3 is further described the utility model, a kind of have the arc quenching chamber structure strengthening magnetic field function, comprise arc control device assembly 1, static contact component 2, cage 3, described cage 3 is also provided with some arc extinguishing grid pieces 4, the first magnetic conductor 5 is provided with in described static contact component 2, the first described magnetic conductor 5 is provided with the first clamping joint 51, described static contact component 2 is provided with U-shaped mounting groove 21, installing hole 22 is also provided with above described U-shaped mounting groove 21, the first described magnetic conductor 5 is connected in installing hole 22 by the first clamping joint 51 and is connected with static contact component 2 clamping.Described cage 3 both sides are also provided with the second magnetic conductor 6.Described cage 3 both sides are provided with mounting groove 31, the second described magnetic conductor 6 is connected in mounting groove 31, by being arranged on the second magnetic conductor 6 of the first magnetic conductor 5 and cage 3 both sides on static contact component 2, under short circuit current, obvious facilitation is opened to scolding of moving contact, and after generation electric arc, can under the effect of magnetic field electromagnetic force, promote electric arc and enter arc control device fast, prevent electric arc disorderly string, significantly improve arc quenching effect, effective shortening circuit breaker arcing time, improve the short circuit breaking capacity of circuit breaker.
Claims (3)
1. one kind has the arc quenching chamber structure strengthening magnetic field function, comprise arc control device assembly (1), static contact component (2), cage (3), described cage (3) is also provided with some arc extinguishing grid pieces (4), it is characterized in that, the first magnetic conductor (5) is provided with in described static contact component (2), described the first magnetic conductor (5) is provided with the first clamping joint (51), and described cage (3) both sides are also provided with the second magnetic conductor (6).
2. a kind of arc quenching chamber structure with enhancing magnetic field function according to claim 1, it is characterized in that, described static contact component (2) is provided with U-shaped mounting groove (21), described U-shaped mounting groove (21) top is also provided with installing hole (22), and described the first magnetic conductor (5) is connected in installing hole (22) by the first clamping joint (51) and is connected with static contact component (2) clamping.
3. a kind of arc quenching chamber structure with enhancing magnetic field function according to claim 1, it is characterized in that, described cage (3) both sides are provided with mounting groove (31), and described the second magnetic conductor (6) is connected in mounting groove (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420627661.2U CN204144201U (en) | 2014-10-28 | 2014-10-28 | A kind of have the arc quenching chamber structure strengthening magnetic field function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420627661.2U CN204144201U (en) | 2014-10-28 | 2014-10-28 | A kind of have the arc quenching chamber structure strengthening magnetic field function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204144201U true CN204144201U (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420627661.2U Active CN204144201U (en) | 2014-10-28 | 2014-10-28 | A kind of have the arc quenching chamber structure strengthening magnetic field function |
Country Status (1)
| Country | Link |
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| CN (1) | CN204144201U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134393A (en) * | 2017-05-27 | 2017-09-05 | 上海良信电器股份有限公司 | A kind of circuit breaker static contact mounting means structure-improved |
| CN112542355A (en) * | 2020-11-30 | 2021-03-23 | 武汉同力同为科技有限公司 | Direct current relay with improved short circuit resistance |
| CN114121566A (en) * | 2021-11-30 | 2022-03-01 | 新驰电气集团有限公司 | Circuit breaker |
-
2014
- 2014-10-28 CN CN201420627661.2U patent/CN204144201U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134393A (en) * | 2017-05-27 | 2017-09-05 | 上海良信电器股份有限公司 | A kind of circuit breaker static contact mounting means structure-improved |
| CN112542355A (en) * | 2020-11-30 | 2021-03-23 | 武汉同力同为科技有限公司 | Direct current relay with improved short circuit resistance |
| CN112542355B (en) * | 2020-11-30 | 2024-02-23 | 武汉同力同为科技有限公司 | Direct current relay with improved short circuit resistance |
| CN114121566A (en) * | 2021-11-30 | 2022-03-01 | 新驰电气集团有限公司 | Circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |