CN203774124U - High voltage electrical contact arc extinguishing device - Google Patents
High voltage electrical contact arc extinguishing device Download PDFInfo
- Publication number
- CN203774124U CN203774124U CN201420201078.5U CN201420201078U CN203774124U CN 203774124 U CN203774124 U CN 203774124U CN 201420201078 U CN201420201078 U CN 201420201078U CN 203774124 U CN203774124 U CN 203774124U
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- CN
- China
- Prior art keywords
- arc extinguishing
- arc
- contact
- voltage electrical
- insulation board
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- Expired - Fee Related
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Abstract
The utility model relates to a high voltage electrical contact arc extinguishing device and belongs to the breaker technology field. The high voltage electrical contact arc extinguishing device comprises an upper arc ignition sheet, a lower arc ignition sheet, an arc extinguishing grid sheet, an insulation board, a moving contact and a static contact, wherein the lower arc ignition sheet stretches into a space at the back of an arc extinguishing chamber, the upper arc ignition sheet is arranged to separate from the space through a corresponding structure of the insulation board of the arc extinguishing chamber, the arc extinguishing grid sheet of the arc extinguishing chamber is arranged at one side of the insulation board, the other side of the insulation board is provided with an arc extinguishing grid sheet, upper and lower portions of a right side of the arc extinguishing grid sheet are respectively provided with the static contact and the moving contact, and the moving contact and the static contact are respectively a bridge structure. According to the high voltage electrical contact arc extinguishing device, structure design of the upper and lower arc ignition sheets improves arc extinguishing capability, arc short circuit in the space of the arc extinguishing chamber is avoided, and the high voltage electrical contact arc extinguishing device further has advantages of safe and reliable use and good stability.
Description
Technical field
The utility model relates to breaker technical field, be specifically related to high-voltage electrical apparatus contact arc extinguishing device.
Background technology
The contact of circuit breaker adopts line contact mostly, and fixed contact is often designed to plane, and moving contact is designed to cambered surface, is conducive to electric arc to enter arc control device when disjunction short circuit current; Contactor is owing to will reaching high mechanical electric life requirements, except adopting the form of line contact, also have the form that adopts Multi-contact, as contact surface is designed to grid configuration, the structural requirement of its contact support can grind off surperficial oxide layer in contact process as far as possible.The hardness that often makes the hardness of fixed contact be a bit larger tham moving contact when dynamic/static contact matches.
Breakpoint number according to dynamic/static contact under disjunction state, can be divided into single-break and double breaking points.And there are some defects in traditional single-break and double breaking points: poor stability, and also dangerous reliable, brought some inconvenience to people's use.
Utility model content
For the deficiency existing in prior art, the utility model provides a kind of high-voltage electrical apparatus contact arc extinguishing device, and the structural design of upper and lower arc striking piece can improve arc extinguishing ability, prevents the arc short circuit in space after arc control device, safe and reliable, good stability.
To achieve these goals, the utility model is to realize by the following technical solutions: high-voltage electrical apparatus contact arc extinguishing device, comprise arc striking piece, lower arc striking piece, arc extinguishing grid pieces, insulation board, moving contact and fixed contact, lower arc striking piece puts in and is positioned at arc control device space below, upper arc striking piece is spaced apart by corresponding construction and this space of the insulation board of arc control device, the arc extinguishing grid pieces of arc control device is arranged on insulation board one side, insulation board opposite side is provided with arc extinguishing grid pieces, arc extinguishing grid pieces right side upper and lower is respectively arranged with fixed contact and moving contact, described moving contact and fixed contact are bridge-type structure.
According to above-mentioned high-voltage electrical apparatus contact arc extinguishing device, wherein, described arc extinguishing grid pieces is a plurality of grid sheets that are arranged in parallel.
According to above-mentioned high-voltage electrical apparatus contact arc extinguishing device, wherein, on described arc extinguishing grid pieces, be provided with elongated leg.
According to above-mentioned high-voltage electrical apparatus contact arc extinguishing device, wherein, described moving contact and fixed contact are copper contact.
The structural design of upper and lower arc striking piece of the present utility model can improve arc extinguishing ability, prevents the arc short circuit in space after arc control device, safe and reliable, good stability.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, describe the utility model in detail;
Fig. 1 is structural representation of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
With reference to Fig. 1, this embodiment is by the following technical solutions: high-voltage electrical apparatus contact arc extinguishing device, comprise arc striking piece 1, lower arc striking piece 2, arc extinguishing grid pieces 3, insulation board 4, moving contact 6 and fixed contact 7, lower arc striking piece 2 puts in and is positioned at arc control device space below, upper arc striking piece 1 is spaced apart by corresponding construction and this space of the insulation board 4 of arc control device, the arc extinguishing grid pieces 3 of arc control device is arranged on insulation board 4 one sides, insulation board 4 opposite sides are provided with arc extinguishing grid pieces 3, arc extinguishing grid pieces 3 right side upper and lowers are respectively arranged with fixed contact 7 and moving contact 6, described moving contact 6 and fixed contact 7 are bridge-type structure.
It should be noted that described arc extinguishing grid pieces 3 is for a plurality of grid sheets that are arranged in parallel.
It should be noted that on described arc extinguishing grid pieces 3 and be provided with elongated leg.
In addition, described moving contact 6 and fixed contact 7 are copper contact.
The operation principle of this embodiment: lower arc striking piece 2 puts in and is positioned at arc control device space below, and corresponding construction and this space of upper arc striking piece 1 by the insulation board 4 of arc control device separates.The structural design of upper and lower arc striking piece can improve arc extinguishing ability, prevents the arc short circuit in space after arc control device.The arc control device of general circuit breaker, owing to being subject to the restriction of volume, are comprised of arc extinguishing grid pieces and insulating barrier, and arc control device are arranged in the pedestal of circuit breaker conventionally, arc extinguishing grid pieces be positioned at dynamic and static contact near, arc extinguishing grid pieces is designed to be arranged in parallel.
This embodiment is because the leg of arc extinguishing grid pieces is more elongated, electric arc starts to the electromagnetic force of arc control device motion just larger from contact, if now the interval of grid sheet is inhomogeneous, elongated leg is likely abutted against each other together, and can produce clinkering danger together.In Fig. 1, the sidewall design of arc control device has insulation gap part, during installation, arc extinguishing grid pieces is inserted to insulation gap part, to guarantee the reliable of interval that grid sheet is asked and installation.
The structural design of the upper and lower arc striking piece of this embodiment can improve arc extinguishing ability, prevents the arc short circuit in space after arc control device, safe and reliable, good stability.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. high-voltage electrical apparatus contact arc extinguishing device, it is characterized in that, comprise arc striking piece (1), lower arc striking piece (2), arc extinguishing grid pieces (3), insulation board (4), moving contact (6) and fixed contact (7), lower arc striking piece (2) puts in and is positioned at arc control device space below, upper arc striking piece (1) is spaced apart by corresponding construction and this space of the insulation board (4) of arc control device, the arc extinguishing grid pieces of arc control device (3) is arranged on insulation board (4) one sides, insulation board (4) opposite side is provided with arc extinguishing grid pieces (3), arc extinguishing grid pieces (3) right side upper and lower is respectively arranged with fixed contact (7) and moving contact (6), described moving contact (6) and fixed contact (7) are bridge-type structure.
2. high-voltage electrical apparatus contact arc extinguishing device according to claim 1, is characterized in that, described arc extinguishing grid pieces (3) is a plurality of grid sheets that are arranged in parallel.
3. high-voltage electrical apparatus contact arc extinguishing device according to claim 1, is characterized in that, described arc extinguishing grid pieces is provided with elongated leg on (3).
4. high-voltage electrical apparatus contact arc extinguishing device according to claim 1, is characterized in that, described moving contact (6) and fixed contact (7) are copper contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201078.5U CN203774124U (en) | 2014-04-17 | 2014-04-17 | High voltage electrical contact arc extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201078.5U CN203774124U (en) | 2014-04-17 | 2014-04-17 | High voltage electrical contact arc extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203774124U true CN203774124U (en) | 2014-08-13 |
Family
ID=51291282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420201078.5U Expired - Fee Related CN203774124U (en) | 2014-04-17 | 2014-04-17 | High voltage electrical contact arc extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203774124U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417450A (en) * | 2018-04-28 | 2018-08-17 | 天津京人电器有限公司 | Single-break direct-acting contactor |
| CN111293005A (en) * | 2018-12-07 | 2020-06-16 | 伊顿智能动力有限公司 | Circuit breaker |
-
2014
- 2014-04-17 CN CN201420201078.5U patent/CN203774124U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417450A (en) * | 2018-04-28 | 2018-08-17 | 天津京人电器有限公司 | Single-break direct-acting contactor |
| CN111293005A (en) * | 2018-12-07 | 2020-06-16 | 伊顿智能动力有限公司 | Circuit breaker |
| CN111293005B (en) * | 2018-12-07 | 2022-02-18 | 伊顿智能动力有限公司 | Circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140813 Termination date: 20170417 |