CN202650893U - Arc striking piece for fixed contact - Google Patents
Arc striking piece for fixed contact Download PDFInfo
- Publication number
- CN202650893U CN202650893U CN 201220304368 CN201220304368U CN202650893U CN 202650893 U CN202650893 U CN 202650893U CN 201220304368 CN201220304368 CN 201220304368 CN 201220304368 U CN201220304368 U CN 201220304368U CN 202650893 U CN202650893 U CN 202650893U
- Authority
- CN
- China
- Prior art keywords
- arc striking
- striking piece
- arc
- fixed contact
- piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses an arc striking piece for a fixed contact. The arc striking piece is provided with an arc striking groove. A boss is disposed at one end of the arc striking groove in the arc striking piece. The arc striking piece is provided with an arc-striking-piece mounting hole. A joint wall is arranged to allow close contact between the arc striking piece and the fixed contact, so that the electric arc is absorbed to the maximum extent. The arc striking groove is provided to effectively guide current so that the electric arc is smoothly struck at the high temperature. The arrangement of the boss facilitates transferring of the electric arc.
Description
Technical field
The utility model relates to circuit breaker, relates in particular to a kind of fixed contact arc striking piece.
Background technology
Circuit breaker is can close to close, carry and cut-off electric current under the normal loop condition, and can close close, in the in setting time carrying with cut-off the switching device of the electric current under the unusual loop condition (comprising short circuit condition).The dynamic and static contact of circuit breaker is when the disjunction short circuit current, tend to produce high-temperature electric arc, this high-temperature electric arc is very harmful to circuit breaker, the circuit breaker of selling on the market now is because the structural design of arc-initiating device is reasonable not, caused the dynamic and static contact of circuit breaker when the disjunction short circuit current, the high-temperature electric arc four that produces is penetrated, if can not rapidly it be concentrated, and it is introduced in the arc-control device fast extinguish, will burn contact system, the lighter seriously reduces the interrupting performance of circuit breaker, and severe one is burnt electrical equipment.
The utility model content
The utility model provides a kind of fixed contact arc striking piece, by the improvement to the arc striking piece structure, strengthens its striking performance, reaches the purpose of protective circuit breaker and electrical equipment.
For reaching this purpose, the utility model by the following technical solutions:
A kind of fixed contact arc striking piece is provided with the striking groove on the described arc striking piece, an end of striking groove is provided with boss on the described arc striking piece, is provided with the arc striking piece installing hole on the described arc striking piece.
Further, described striking groove is waist-shaped hole.
Further, described arc striking piece installing hole is screwed hole.
Further, described striking groove and described boss are arranged vertically.
Further, described boss is the corrugated projection that arc striking piece is bent to form.
Further, the end away from described arc striking piece installing hole is bent to form the applying wall on arc striking piece.
The beneficial effects of the utility model are: be provided with the applying wall, arc striking piece can be contacted closely with fixed contact, can absorb to greatest extent electric arc, be provided with the striking groove, effectively guide current is provided with the transfer that boss is conducive to electric arc so that the high-temperature electric arc striking is unimpeded.
Description of drawings
The below is described in further detail the utility model with embodiment with reference to the accompanying drawings.
Fig. 1 is fixed contact arc striking piece perspective view.
Fig. 2 is fixed contact arc striking piece front view.
Fig. 3 be among Fig. 2 A-A to cutaway view.
Among the figure:
1, arc striking piece; 2, striking groove; 3, arc striking piece installing hole; 4, boss; 5, applying wall.
Embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment.
Shown in Fig. 1～3, in present embodiment, a kind of fixed contact arc striking piece described in the utility model, be provided with striking groove 2 on the arc striking piece 1, described striking groove 2 is an elongated waist-shaped hole, thereby striking groove 2 consists of the striking paths has effectively solved slowly problem of the smooth and striking of high-temperature electric arc striking that the dynamic and static contact of circuit breaker produces when the disjunction short circuit current, an end of striking groove 2 and described striking groove 2 are vertical on the described arc striking piece 1 is provided with boss 4, the corrugated projection that described boss 4 is bent to form for arc striking piece 1; Described boss 4 can play the effect of accelerating transferred arc; Be provided with screwed hole as arc striking piece installing hole 3 on the described arc striking piece 1, described arc striking piece 1 is fixedly connected on the fixed contact by arc striking piece installing hole 3 and screw, and the end away from described arc striking piece installing hole 3 on arc striking piece 1 is bent to form applying wall 5.
During work; arc striking piece 1 is installed on the fixed contact by arc striking piece installing hole 3 and screw; end away from arc striking piece installing hole 3 is provided with to the applying wall of fixed contact direction turnover; arc striking piece 1 can be fitted tightly with fixed contact; arc striking piece 1 is the electric arc generation district of fixed contact with the fixed contact contact position, by arc striking piece 1 electric arc is reached boss 4 places, fast electric arc is delivered to arc-control device by boss 4; rely on arc-control device to carry out arc extinguishing, thereby play the effect of protective circuit breaker and electrical equipment.
What need statement is; above-mentioned embodiment only is preferred embodiment of the present utility model and institute's application technology principle; in technical scope disclosed in the utility model; the variation that any those skilled in the art of being familiar with expected easily or replacement all should be encompassed in the protection range of the present utility model.
Claims (6)
1. fixed contact arc striking piece, it is characterized in that: be provided with the striking groove on the described arc striking piece, an end of striking groove is provided with boss on the described arc striking piece, is provided with the arc striking piece installing hole on the described arc striking piece.
2. fixed contact arc striking piece according to claim 1, it is characterized in that: described striking groove is waist-shaped hole.
3. fixed contact arc striking piece according to claim 1, it is characterized in that: described arc striking piece installing hole is screwed hole.
4. fixed contact arc striking piece according to claim 1, it is characterized in that: described striking groove and described boss are arranged vertically.
5. fixed contact arc striking piece according to claim 1 is characterized in that: described boss is the corrugated projection that arc striking piece is bent to form.
6. fixed contact arc striking piece according to claim 1, it is characterized in that: the end away from described arc striking piece installing hole on arc striking piece is bent to form the applying wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304368 CN202650893U (en) | 2012-06-27 | 2012-06-27 | Arc striking piece for fixed contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304368 CN202650893U (en) | 2012-06-27 | 2012-06-27 | Arc striking piece for fixed contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202650893U true CN202650893U (en) | 2013-01-02 |
Family
ID=47419960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220304368 Expired - Lifetime CN202650893U (en) | 2012-06-27 | 2012-06-27 | Arc striking piece for fixed contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202650893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723248A (en) * | 2012-06-27 | 2012-10-10 | 无锡新宏泰电器科技股份有限公司 | Static contact arc-striking piece |
-
2012
- 2012-06-27 CN CN 201220304368 patent/CN202650893U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723248A (en) * | 2012-06-27 | 2012-10-10 | 无锡新宏泰电器科技股份有限公司 | Static contact arc-striking piece |
| CN102723248B (en) * | 2012-06-27 | 2015-07-29 | 无锡新宏泰电器科技股份有限公司 | A kind of fixed contact arc striking piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HAGER ELECTRIC (HUIZHOU) CO.,LTD. Assignor: WUXI SAHAT ELECTRICAL APPARATUS Co.,Ltd. Contract record no.: 2019320010035 Denomination of utility model: Static contact arc-striking piece Granted publication date: 20130102 License type: Common License Record date: 20190726 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |