CN202172052U - Static contact of breaker - Google Patents
Static contact of breaker Download PDFInfo
- Publication number
- CN202172052U CN202172052U CN2011203089521U CN201120308952U CN202172052U CN 202172052 U CN202172052 U CN 202172052U CN 2011203089521 U CN2011203089521 U CN 2011203089521U CN 201120308952 U CN201120308952 U CN 201120308952U CN 202172052 U CN202172052 U CN 202172052U
- Authority
- CN
- China
- Prior art keywords
- striking
- working end
- width
- hole groove
- installing hole
- 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 relates to a breaker, especially to a static contact of a breaker. The technical scheme employed by the utility model is that the static contact of the breaker is characterized in that an installing hole is arranged at the position of a working end close to a connecting end, the middle of the working end close to the installing hole is equipped with a through hole groove, and an alloy conductive contact is fixedly arranged on the working end of a conductive element and is located on the other side of the through hole groove relative to the installing hole to approach the through hole groove; an arc ignition sheet is formed by bending a sheet metal and forms a short edge and a long edge after bent, and the top end of the short edge is equipped with an installing column fixedly arranged in the installing hole of the working end; the top end of the long edge of the arc ignition sheet is accommodated in the through hole groove, and the top end width of the long edge of the arc ignition sheet is greater than the width of the alloy conductive contact. By employing the above scheme, the utility model provides a novel static contact of the breaker having a large and effective arc ignition area and a good arc ignition effect.
Description
Technical field
The utility model relates to a kind of circuit breaker, is meant the fixed contact in the circuit breaker especially.
Background technology
The fixed contact of existing circuit breaker, its striking sheet are the appropriate location of electric arc emission direction that is fixed on the alloy conductive contact of fixed contact basically, and the striking initiating terminal of striking sheet is higher than the solder side of alloy contact; Effectively the striking area is little, causes the striking path obstructed, and the striking resistance is big; And wearing and tearing along with alloy contact; The striking resistance can increase thereupon, and the striking effect descends, and is unfavorable for extinguishing of electric arc.
Summary of the invention
The utility model overcomes the defective that prior art exists, and provides a kind of effective striking area big, the novel circuit breaker fixed contact that striking is effective.
Realize above-mentioned purpose, the utility model adopts following technical scheme: a kind of fixed contact of circuit breaker includes conducting element, alloy conductive contact and striking sheet; Said conducting element includes link and working end, and wherein the afterbody of link bending back is connected with the working end one, it is characterized in that: said working end be provided with installing hole near the link place; The middle part of said working end is provided with through-hole groove near the installing hole place; The alloy conductive contact is fixedly installed on the conducting element working end, and is positioned at the opposite side with respect to installing hole of through-hole groove, presses close to be provided with through-hole groove; Said striking sheet is provided with by the sheet metal bending and constitutes; Its bending back constitutes a minor face and a long limit, and the top of said minor face is provided with erection column, and this erection column is installed in the installing hole of working end; The top on said striking length of a film limit is contained in the through-hole groove, and the top width on said striking length of a film limit is greater than the width of alloy conductive contact.
Through adopting such scheme; The fixed contact of the utility model has solved the arc end of the striking sheet on the existing fixed contact and has produced the striking distance between the alloy conductive contact of electric arc; The striking path is obstructed; The electric arc resistance is big, and electric arc can not be introduced arc-control device effectively and quickly, and the striking effect of the striking sheet problem that can descend with the wearing and tearing of contact.Simultaneously, the effective electric arc film-cooled heat of striking that has also solved existing striking sheet is little, and arc energy consumption is few, and striking, arc quenching effect are undesirable, technical problem such as the stock utilization of striking sheet is low.
The further setting of the utility model is: the width of said striking sheet is greater than the width of through-hole groove; The top ends on striking length of a film limit is provided with the shoulder rank through both sides and constitutes its width and the adaptive top of through-hole groove width; Said through-hole groove both sides are provided with alloy conductive contact direction and all extend and be provided with long groove towards the working end; Enclose formation one solder side between through-hole groove and the two long grooves, the alloy conductive contact is fixedly welded on this solder side; The installing hole near the link place of said working end is a rectangular opening; The erection column on said striking sheet minor face top is the rectangular column adaptive with the rectangle installing hole; The centre of the kink of said striking sheet is provided with opening, and the face that this opening is positioned at the minor face place becomes vertical setting with the rectangular column of minor face.
The purpose that further is provided with is; Take into full account and make on the architecture basics of product; The width of striking sheet is greater than the width of through-hole groove in addition, can make the effective width of arc ignition portion be far longer than the width of alloy conductive contact, and its effect is to introduce arc-control device when electric arc is cooled off fast; The top on striking length of a film limit is contained in the through-hole groove; The top that makes striking length of a film limit is near the alloy conductive contact and be lower than the solder side of alloy conductive contact; The benefit of this structure is: the striking path is unobstructed, and the striking resistance is little, even and the alloy conductive contact occurring under the situation of heavy wear; The striking effect is still like this, and the effect of opening is the mechanical force that is used to bear when the striking sheet is fixed on the rectangle installing hole of conducting element.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the overall structure sketch map of the utility model;
Fig. 2 is the striking chip architecture sketch map one of the utility model;
Fig. 3 is the striking chip architecture sketch map two of the utility model;
Fig. 4 is the conducting element structural representation of the utility model.
Embodiment
Like Fig. 1-shown in Figure 4, a kind of fixed contact of circuit breaker includes conducting element 1, alloy conductive contact 2 and striking sheet 3, and said conducting element 1 includes link 14 and working end 15, and wherein the afterbody of link 14 bending back is connected with working end 15 one.In the utility model embodiment, said working end 15 be provided with rectangle installing hole 11 near link 14 places, we also can be arranged to other shape to installing hole 11 certainly; But consider the convenience of installing and processing; Adopt squareness ratio more reasonable, the middle part of said working end 15 is provided with square through hole groove 12 near rectangle installing hole 11 places, and alloy conductive contact 2 is fixedly installed on conducting element 1 working end 15; And be positioned at the opposite side with respect to installing hole 11 of through-hole groove 12; Press close to be provided with through-hole groove 12, said striking sheet 3 is provided with by the sheet metal bending and constitutes, and its bending back constitutes a minor face 31 and a long limit 33; The top of said minor face 31 is provided with rectangle installing hole 11 and constitutes the fixing rectangle erection column 311 of pegging graft and cooperating, and this rectangle erection column 311 is installed in the rectangle installing hole 11 of working end 15; The top 3311 on said striking sheet 3 long limits 33 is contained in the through-hole groove 12; The top 3311 on striking length of a film limit 33 is near alloy conductive contact 2 and be lower than the solder side of alloy conductive contact 2 like this; The benefit of this structure is: the striking path is unobstructed; The striking resistance is little, even and alloy conductive contact 2 occurring under the situation of heavy wear, the striking effect is still like this.Top 3311 width on said striking length of a film limit 33 are greater than the width of alloy conductive contact 2; In the utility model embodiment; Be far longer than the width of alloy conductive contact 2 for the effective width that makes striking sheet 3; Introduce arc-control device when electric arc is cooled off fast, usually the width of the width of striking sheet 3 greater than through-hole groove 12, the top ends on striking length of a film limit 33 is provided with shoulder rank 3312 through both sides and constitutes its width and the adaptive top 3311 of through-hole groove 12 width; Certainly we also can dwindle the width on top, long limit 3311 through the hypotenuse transition; Also can be arranged to the width of whole striking sheet 3 suitable with through-hole groove 12 width, the back a kind of striking effect than preceding two kinds of differences, do not consider usually.
In the utility model embodiment; Said through-hole groove 12 both sides 15 are provided with alloy conductive contact 2 directions and all extend and be provided with long groove 16 towards the working end; Enclose formation one solder side 13 between through-hole groove 12 and the two long grooves 16, alloy conductive contact 2 is fixedly welded on this solder side 13; The centre of the kink 34 of said striking sheet 3 is provided with opening 32; This opening 32 is positioned at 311 one-tenth vertical settings of rectangular column of face 321 with the minor face 31 at minor face 31 places; The effect of the face 321 of opening 32 is the mechanical forces that are used to bear when striking sheet 3 is fixed on the rectangle installing hole 11 of conducting element 1; Certainly we also can not be provided with opening 32, and are provided with stressed boss.
Claims (3)
1. the fixed contact of a circuit breaker includes conducting element, alloy conductive contact and striking sheet, and said conducting element includes link and working end; Wherein the afterbody of link bending back is connected with the working end one; It is characterized in that: said working end be provided with installing hole near the link place, the middle part of said working end is provided with through-hole groove near the installing hole place, the alloy conductive contact is fixedly installed on the conducting element working end; And be positioned at the opposite side with respect to installing hole of through-hole groove; Press close to be provided with through-hole groove, said striking sheet is provided with by the sheet metal bending and constitutes, and its bending back constitutes a minor face and a long limit; The top of said minor face is provided with erection column; This erection column is installed in the installing hole of working end, and the top on said striking length of a film limit is contained in the through-hole groove, and the top width on said striking length of a film limit is greater than the width of alloy conductive contact.
2. the fixed contact of circuit breaker according to claim 1; It is characterized in that: the width of said striking sheet is greater than the width of through-hole groove; The top ends on striking length of a film limit is provided with the shoulder rank through both sides and constitutes its width and the adaptive top of through-hole groove width; Said through-hole groove both sides are provided with alloy conductive contact direction all extends and is provided with long groove towards the working end, encloses between through-hole groove and the two long grooves to constitute a solder side, and the alloy conductive contact is fixedly welded on this solder side.
3. the fixed contact of circuit breaker according to claim 1 and 2; It is characterized in that: the installing hole near the link place of said working end is a rectangular opening; The erection column on said striking sheet minor face top is the rectangular column adaptive with the rectangle installing hole; The centre of the kink of said striking sheet is provided with opening, and the face that this opening is positioned at the minor face place becomes vertical setting with the rectangular column of minor face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203089521U CN202172052U (en) | 2011-08-23 | 2011-08-23 | Static contact of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203089521U CN202172052U (en) | 2011-08-23 | 2011-08-23 | Static contact of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202172052U true CN202172052U (en) | 2012-03-21 |
Family
ID=45830242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203089521U Expired - Lifetime CN202172052U (en) | 2011-08-23 | 2011-08-23 | Static contact of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202172052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113889384A (en) * | 2021-08-16 | 2022-01-04 | 浙江创奇电气有限公司 | Circuit breaker |
-
2011
- 2011-08-23 CN CN2011203089521U patent/CN202172052U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113889384A (en) * | 2021-08-16 | 2022-01-04 | 浙江创奇电气有限公司 | Circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120321 |