CN202616161U - Electromagnetic trip for small-sized circuit breaker - Google Patents
Electromagnetic trip for small-sized circuit breaker Download PDFInfo
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- CN202616161U CN202616161U CN 201220267077 CN201220267077U CN202616161U CN 202616161 U CN202616161 U CN 202616161U CN 201220267077 CN201220267077 CN 201220267077 CN 201220267077 U CN201220267077 U CN 201220267077U CN 202616161 U CN202616161 U CN 202616161U
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- circuit breaker
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Abstract
The utility model discloses an electromagnetic trip for a small-sized circuit breaker. The electromagnetic trip comprises a conductor with two bent ends, the middle part of the conductor is riveted on a magnet yoke by a rivet, the magnet yoke is provided with a counteractive spring and an armature which are connected on the magnet yoke by a positioning shaft; a movable contact is arranged at one end of the conductor; a switch executing mechanism is arranged on one side of the armature; and one end of the counteractive spring leans against the armature, and the other end of the counteractive spring leans against the conductor. The parts on the same specification of the switch and the manufacturing cost are reduced by about 30%; the reaction speed is quick; and due to the structure, the rated current of the small-sized circuit breaker being 18mm in width can be 125A, and the temperature rising achieves the national standard.
Description
Technical field
The utility model relates to a kind of magnetictrip of electric equipment, in particular to a kind of miniature circuit breaker magnetictrip.
Background technology
Magnetictrip is claimed overload protection again, and its effect is that electric current can be multiplied when using circuit short circuit phenomenon to occur, and when we use the switch rated current, in this case magnetictrip will be in the effect in magnetic field rapid cut-off switch.Thereby play the effect that circuit is used in protection.
The magnetictrip of the miniature circuit breaker of general width 18mm is to use screw (being coil type usually) with reference to shown in Figure 1; The effect that this structure is used for below the rated current 20A is more satisfactory; If when being used for more than the 20A (not comprising 20A); The one, because of the prices of raw and semifnished materials height of coil own adds complex structure, Gu whole manufacturing cost is high.The 2nd, it is higher that this part is compared temperature rise ratio, and relatively power consumption directly influences the switch overall performance.So the general maximum of the miniature circuit breaker of width 18mm is only accomplished 80A.
The utility model content
The purpose of the utility model is to overcome the above problem that prior art exists, and a kind of miniature circuit breaker magnetictrip is provided.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is realized through following technical scheme:
A kind of miniature circuit breaker magnetictrip; The conductor that comprises a two ends bending; On yoke, said yoke is provided with antagonistic spring and armature through closing-up at said conductor middle part, and said armature and antagonistic spring are connected in said yoke through locating shaft; Said conductor one end is provided with moving contact; Said armature one side is provided with switch actuator; Said antagonistic spring one end is against said armature, and the other end is against said conductor.
The beneficial effect of the utility model is:
1, U type driven type lacks three parts than the coil type magnetictrip, and part and manufacturing cost reduce by 30% approximately on the switch of same specification,
2, this structural response speed is fast, and behind line short, armature is direct contact-making switch execution architecture under the effect in magnetic field, thereby switch is broken off fast; And the armature of coil type is passed to push rod to thrust in the effect in magnetic field, and push rod contact-making switch execution architecture is broken off switch, so just needs the time of certain transmission.Driven type is than the fast 10%-20% of coil type from the reaction speed aspect.Miniature circuit breaker has been used this structure, so because the fast breaking capacity of breaking speed can reach 10KA; General miniature circuit breaker is generally accomplished 6KA.
3, can on the wide miniature circuit breaker of 18mm, rated current can accomplish 125A through this structure, temperature rise can be up to state standards.
Above-mentioned explanation only is the general introduction of the utility model technical scheme, in order more to know the technological means of understanding the utility model, and can implement according to the content of specification, below with the preferred embodiment of the utility model and conjunction with figs. specify as after.The embodiment of the utility model is provided by following examples and accompanying drawing thereof in detail.
Description of drawings
Accompanying drawing described herein is used to provide the further understanding to the utility model, constitutes the application's a part, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
The coil type magnetictrip of Fig. 1 prior art;
The magnetictrip of Fig. 2 the utility model;
Fig. 3 magnetictrip cutaway view.
Label declaration among the figure: 1, conductor, 2, antagonistic spring, 3, locating shaft, 4, yoke, 5, armature, 6, rivet, 7, moving contact, 8, switch actuator, A, the sense of current.
Embodiment
Below with reference to accompanying drawing and combine embodiment, specify the utility model.
With reference to Fig. 2, shown in Figure 3; A kind of miniature circuit breaker magnetictrip; The conductor 1 that comprises a two ends bending; Said conductor 1 middle part is riveting on the yoke 4 through rivet 6, and said yoke 4 is provided with antagonistic spring 2 and armature 5, and said armature 5 is connected in said yoke 4 with antagonistic spring 2 through locating shaft 3; Said conductor 1 one ends are provided with moving contact 7; Said armature 5 one sides are provided with switch actuator 8; Said antagonistic spring 2 one ends are against said armature 5, and the other end is against said conductor 1.
When switch closure, moving contact 7 contacts with conductor 1, and sense of current A, electric current flow and can will produce magnetic field, and the big more magnetic field that produces of electric current is big more.When the electricity consumption line short, the magnetic field that under the several times rated current, produces, can make armature 5 overcome yoke 4 that antagonistic spring 2 power are produced magnetic field inhale with, armature 5 triggers actuators and makes switch hasten to break off simultaneously, in time protection circuit is not damaged.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (1)
1. miniature circuit breaker magnetictrip; It is characterized in that: the conductor (1) that comprises a two ends bending; Said conductor (1) middle part is riveting on the yoke (4) through rivet (6); Said yoke (4) is provided with antagonistic spring (2) and armature (5), and said armature (5) is connected in said yoke (4) with antagonistic spring (2) through locating shaft (3); Said conductor (1) one end is provided with moving contact (7); Said armature (5) one sides are provided with switch actuator (8); Said antagonistic spring (2) one ends are against said armature (5), and the other end is against said conductor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220267077 CN202616161U (en) | 2012-06-07 | 2012-06-07 | Electromagnetic trip for small-sized circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220267077 CN202616161U (en) | 2012-06-07 | 2012-06-07 | Electromagnetic trip for small-sized circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202616161U true CN202616161U (en) | 2012-12-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220267077 Expired - Fee Related CN202616161U (en) | 2012-06-07 | 2012-06-07 | Electromagnetic trip for small-sized circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202616161U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230597A (en) * | 2016-04-29 | 2017-10-03 | 上海良信电器股份有限公司 | A kind of miniature circuit breaker clapper-type instantaneous protection mechanism |
| CN107230586A (en) * | 2016-04-29 | 2017-10-03 | 上海良信电器股份有限公司 | A kind of miniature circuit breaker structure-improved |
| WO2019080762A1 (en) * | 2017-10-26 | 2019-05-02 | 上海良信电器股份有限公司 | Clapper-type electromagnetic release for miniature circuit breaker |
-
2012
- 2012-06-07 CN CN 201220267077 patent/CN202616161U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230597A (en) * | 2016-04-29 | 2017-10-03 | 上海良信电器股份有限公司 | A kind of miniature circuit breaker clapper-type instantaneous protection mechanism |
| CN107230586A (en) * | 2016-04-29 | 2017-10-03 | 上海良信电器股份有限公司 | A kind of miniature circuit breaker structure-improved |
| WO2019080762A1 (en) * | 2017-10-26 | 2019-05-02 | 上海良信电器股份有限公司 | Clapper-type electromagnetic release for miniature circuit breaker |
| US11302503B2 (en) | 2017-10-26 | 2022-04-12 | Shanghai Liangxin Electrical Co., Ltd | Clapper-type electromagnetic release for miniature circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20170607 |