CN204905193U - Arc initiation device of circuit breaker - Google Patents
Arc initiation device of circuit breaker Download PDFInfo
- Publication number
- CN204905193U CN204905193U CN201520583979.XU CN201520583979U CN204905193U CN 204905193 U CN204905193 U CN 204905193U CN 201520583979 U CN201520583979 U CN 201520583979U CN 204905193 U CN204905193 U CN 204905193U
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- arc
- circuit breaker
- striking
- conducting strip
- control device
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Abstract
The utility model discloses an arc initiation device of circuit breaker, including circuit breaker casing, the drive arrangement that opens circuit, arc control device, electrically conductive system, tripping device, tripping device includes movable contact, and electrically conductive system includes conducting strip and static contact, and the conducting strip passes through the wire to be connected with the movable contact electricity, is provided with the striking groove on being located the circuit breaker casing of static contact both sides, and striking groove and arc control device communicate, one side of conducting strip is provided with the run -on plate, and the downside of static contact is provided with the striking angle, and the striking angle links to each other with arc control device through the striking piece, the utility model discloses the electric arc magnetic blow -out is effectual, and the striking is fast, and simple structure is with low costs, assembles conveniently and is showing and improved circuit breaker breaking capacity.
Description
Technical field
The utility model relates to a kind of circuit breaker, is specifically related to a kind of arc-initiating device of circuit breaker.
Background technology
At present, human lives be unable to do without electric energy, various protectors for the protection of circuit arise at the historic moment, wherein circuit breaker is one of common circuit brake, for at circuit overloads short-circuit protection, when there is the situation of short circuit or overload in circuit, the tripping mechanism automatic shutdown circuit of circuit breaker, in the process cutting off circuit, a large amount of electric arc can be produced, electric arc produces along with HTHP, easily puncture as evacuated arc extinguishing not in time or burn circuit breaker, have a strong impact on the breaking capacity of circuit breaker, although existing arc-control device arc quenching effect is fine, but electric arc will be introduced arc-control device is the technical barrier that will solve, and circuit breaker under prior art causes circuit breaker to damage due to striking ability, affect useful life and Electrical Safety, and the complex structure of the arc-initiating device of some circuit breakers, complex manufacturing, cause cost very high.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of arc-initiating device of circuit breaker.
To achieve these goals, the utility model solves the technical scheme that its technical problem adopts: a kind of arc-initiating device of circuit breaker, comprise Shell of circuit breaker, open circuit drive unit, arc-control device, conducting system, tripping mechanism, tripping mechanism comprises movable contact, conducting system comprises conducting strip and fixed contact, conducting strip is electrically connected with movable contact by wire, the Shell of circuit breaker being positioned at fixed contact both sides is provided with striking groove, striking groove is communicated with arc-control device, the side of described conducting strip is provided with run-on tab, the downside of fixed contact is provided with arc leading angle, arc leading angle is connected with arc-control device by arc striking piece,
The arc-initiating device of a kind of circuit breaker that the utility model provides further, the overall camber of its run-on tab, the arc end of run-on tab is provided with arc fold bending and fits with conducting strip, and the inner side on arc run-on tab bends in cambered surface and is provided with bar shaped projection;
The arc-initiating device of a kind of circuit breaker that the utility model provides further, its arc leading angle is arc fold bending overhead kick, and bending angle is 45 ° to 75 °, and both sides, the end correspondence of arc fold bending overhead kick is provided with inclined-plane.
The arc-initiating device of a kind of circuit breaker that the utility model provides further, its arc striking piece is the straight plate that one end is provided with bending, and its bending angle is 120 ° to 150 °, and the two sides of the arc end of arc striking piece also correspondence are provided with inclined-plane.
The arc-initiating device of a kind of circuit breaker that the utility model further provides, the face that its arc leading angle is relative with the arc end of arc striking piece is parallel to each other at a distance of 2-3mm.
The beneficial effects of the utility model: the magnetic blow-out of the utility model electric arc is effective, striking speed is fast, and structure is simple, and cost is low, easy to assembly and significantly improve circuit breaker breaking capacity.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of the utility model circuit breaker off-state;
Fig. 2 is fixed contact modular construction schematic diagram of the present utility model;
Fig. 3 is run-on tab modular construction schematic diagram of the present utility model;
Fig. 4 is the structural representation of arc striking piece of the present utility model.
Embodiment
The arc-initiating device of a kind of circuit breaker as shown in Figures 1 to 4, comprise Shell of circuit breaker 1, open circuit drive unit 2, arc-control device 3, conducting system 4, tripping mechanism 5, tripping mechanism 5 comprises movable contact 6, conducting system 4 comprises conducting strip 7 and fixed contact 8, conducting strip 7 is electrically connected with movable contact 6 by wire, the Shell of circuit breaker 1 being positioned at fixed contact 8 both sides is provided with striking groove 9, striking groove 9 is communicated with arc-control device 3, the side of described conducting strip 7 is provided with run-on tab 10, the downside of fixed contact 8 is provided with arc leading angle 11, arc leading angle 11 is connected with arc-control device 3 by arc striking piece 12,
The overall camber of described run-on tab 10, the arc end of run-on tab 10 is provided with arc fold bending 13 and fits with conducting strip 7, and the inner side on arc run-on tab bends in cambered surface and is provided with bar shaped projection 14;
Described arc leading angle 11 is arc fold bending overhead kick, and bending angle is 45 ° to 75 °, and both sides, the end correspondence of arc fold bending overhead kick is provided with inclined-plane.
Described arc striking piece 12 is provided with the straight plate of bending for one end, and its bending angle is 120 ° to 150 °, and the two sides of the arc end of arc striking piece 12 also correspondence are provided with inclined-plane.
The face that described arc leading angle 11 is relative with the arc end of arc striking piece 12 is parallel to each other at a distance of 2-3mm.
The open circuit detailed process of the utility model circuit breaker: when there being short circuit current to flow through, short circuit current is by conducting system 4, open circuit drive unit 2 produces the iron core arranged in larger field drives open circuit drive unit 2, the push-jump tripping mechanism 5 of iron core, and circuit breaker tripping divides deenergizing; Divide during deenergizing and produce electric arc, electric arc one end through the apparent motion of arc leading angle 11 to the end of arc fold bending overhead kick, form from the arc end of arc striking piece 12 electromagnetic force that the different sense of current repels each other, force electric arc to move to the folding corner of arc striking piece 12, then move to arc-control device 3 along its surface; The electric arc other end is through moving contact 6 arcing, cause on run-on tab 10 by the arc fold bending 13 of run-on tab 10, again along the surperficial fast moving of bar shaped projection 14 to arc-control device 3, electric arc is introduced in arc-control device 3 and is carried out splitting and cool by two ends arcing, let out arc at the arc passage of letting out by Shell of circuit breaker 1 is offered, complete whole breaking course.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (3)
1. the arc-initiating device of a circuit breaker, comprise Shell of circuit breaker, open circuit drive unit, arc-control device, conducting system, tripping mechanism, tripping mechanism comprises movable contact, conducting system comprises conducting strip and fixed contact, conducting strip is electrically connected with movable contact by wire, the Shell of circuit breaker being positioned at fixed contact both sides is provided with striking groove, striking groove is communicated with arc-control device, it is characterized in that, the side of described conducting strip is provided with run-on tab, the downside of fixed contact is provided with arc leading angle, and arc leading angle is connected with arc-control device by arc striking piece;
The overall camber of described run-on tab, the arc end of run-on tab is provided with arc fold bending and fits with conducting strip, and the inner side on arc run-on tab bends in cambered surface and is provided with bar shaped projection;
Described arc leading angle is arc fold bending overhead kick, and bending angle is 45 ° to 75 °, and both sides, the end correspondence of arc fold bending overhead kick is provided with inclined-plane.
2. the arc-initiating device of a kind of circuit breaker as claimed in claim 1, is characterized in that, described arc striking piece is the straight plate that one end is provided with bending, and its bending angle is 120 ° to 150 °, and the two sides of the arc end of arc striking piece also correspondence are provided with inclined-plane.
3. the arc-initiating device of a kind of circuit breaker as claimed in claim 1, is characterized in that, the face that described arc leading angle is relative with the arc end of arc striking piece is parallel to each other at a distance of 2-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520583979.XU CN204905193U (en) | 2015-08-05 | 2015-08-05 | Arc initiation device of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520583979.XU CN204905193U (en) | 2015-08-05 | 2015-08-05 | Arc initiation device of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204905193U true CN204905193U (en) | 2015-12-23 |
Family
ID=54927352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520583979.XU Active CN204905193U (en) | 2015-08-05 | 2015-08-05 | Arc initiation device of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204905193U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118750A (en) * | 2015-08-05 | 2015-12-02 | 浙江凯发电气股份有限公司 | Arc striking device of circuit breaker |
| CN108732399A (en) * | 2017-04-14 | 2018-11-02 | 施耐德电器工业公司 | Electric parameter measurement component |
-
2015
- 2015-08-05 CN CN201520583979.XU patent/CN204905193U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118750A (en) * | 2015-08-05 | 2015-12-02 | 浙江凯发电气股份有限公司 | Arc striking device of circuit breaker |
| CN108732399A (en) * | 2017-04-14 | 2018-11-02 | 施耐德电器工业公司 | Electric parameter measurement component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 2-1 No. 325000 Zhejiang city of Wenzhou province Yueqing North white elephant white town road (South) Patentee after: Zhejiang Kai FA Electric Co., Ltd. Address before: 2-1 No. 325000 Zhejiang city of Wenzhou province Yueqing North white elephant white town road (South) Patentee before: ZHEJIANG KAIFA ELECTRICAL CO., LTD. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 325000 No. 2-1 Baixiang Avenue, Beibeixiang Town, Yueqing City, Zhejiang Province (South Building) Patentee after: Great Wall Electrical Appliance Group Zhejiang Technology Co., Ltd. Address before: 325000 white elephant road 2-1, North white elephant Town, Yueqing, Wenzhou, Zhejiang (South Tower) Patentee before: Zhejiang Kai FA Electric Co., Ltd. |