CN2765312Y - Dynamic/static contact general-row splicing device for main body of circuit breaker - Google Patents
Dynamic/static contact general-row splicing device for main body of circuit breaker Download PDFInfo
- Publication number
- CN2765312Y CN2765312Y CN 200420114857 CN200420114857U CN2765312Y CN 2765312 Y CN2765312 Y CN 2765312Y CN 200420114857 CN200420114857 CN 200420114857 CN 200420114857 U CN200420114857 U CN 200420114857U CN 2765312 Y CN2765312 Y CN 2765312Y
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- CN
- China
- Prior art keywords
- dynamic
- current
- circuit breaker
- main body
- static contact
- 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 - Fee Related
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Abstract
The utility model discloses a dynamic/static contact bus-row splicing device for a main body of a circuit breaker. The main body of the circuit breaker is connected and inserted in an opening groove of a bar end part so that the current of the end part of a bus bar is divided into two ways according to the principle that reducing the current is to reduce electric repulsive force because the electric repulsive force on a dynamic contact is in direct proportion to the square of the current, so the current which flows across a conductor of a shrinking region is reduced. Short-time withstanding current and breaking current are ensured under small contact pressure and small contact area, and meanwhile the dynamic thermal stability of the circuit breaker is enhanced.
Description
One, technical field
The utility model relates to the device that a kind of breaker body is connected with drawout chassis, belongs to technical field of electric appliances.
Two, background technology
Breaker body dynamic/static contact busbar and drawout chassis are pegged graft, and will guarantee that not only the temperature rise when the normal rating electric current passes through is up to specification, also must satisfy when system is short-circuited, the junction does not allow to scold out, otherwise, will cause burning of the complete sets of equipment, and cause the power failure of whole electric power system.At present, the grafting of breaker body dynamic/static contact and drawer often all is to strengthen the pressure of splicing position to come or increase contact area to realize its above-mentioned requirements, and not only cause operating physical force to strengthen thus, and volume increases, consumptive material increases, production cost improves.
Three, summary of the invention
Problem in view of above-mentioned existence, the purpose of this utility model provides a kind of simple in structure, easily manufactured, can satisfy the intensification requirement, can reduce the electrodynamic repulsion force of splicing position again greatly, the plug assembly of the dynamic/static contact busbar of the breaker body of raising system thermal stability.
The technical scheme that its technical problem that solves the utility model adopts is: be according to acting on square being directly proportional of electrodynamic repulsion force and electric current on the moving contact, thereby reduce the principle that the electric current electrodynamic repulsion force also reduces, breaker body is patched row end fluting, make electric current be divided into two-way in the busbar end, thereby the shrinking zone conductor current of flowing through is reduced, realized under less contact pressure and contact area, short time withstand current and breaking current have been guaranteed, simultaneously, improve the dynamic and thermal stability performance of circuit breaker again greatly.
Through the utility model after the above-mentioned design, not only saved copper material greatly, the volume that dwindled circuit breaker reduces the circuit breaker own wt, has reduced operating physical force, has particularly solved the difficult problem that large capcity breaker is pegged graft.
Four, description of drawings
Fig. 1 is the structural representation of the present utility model that is the strip and block structure
Fig. 2 is the structural representation of the present utility model that is bathtub construction
Fig. 3, Fig. 4 are respectively the connection diagrams of the present utility model with strip and block structure, bathtub construction
Wherein: 1-docking apparatus 2-bridge-shaped contact 3-bridge-shaped contact seat 4-groove
Five, embodiment
The plug assembly of the dynamic/static contact busbar of breaker body is the strip and block structure or is bathtub construction, has groove 4 in the end of plug assembly 1; The degree of depth of groove 4 is inserted the degree of depth of the rows of patching more than or equal to connecting with bridge-shaped contact 2, separates electric current thereby play, and reaches the purpose of final design.The scope that the utility model is mainly protected is about to the project organization and the whole project organization that is connected of the row of patching.
Claims (2)
1, a kind of plug assembly of dynamic/static contact busbar of breaker body is characterized in that this plug assembly is the strip and block structure or is bathtub construction, has groove (4) in the end of plug assembly (1).
2, the plug assembly of the dynamic/static contact busbar of breaker body according to claim 1, the degree of depth that it is characterized in that described groove (4) is more than or equal to connecting the degree of depth of inserting the row of patching with bridge-shaped contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114857 CN2765312Y (en) | 2004-12-24 | 2004-12-24 | Dynamic/static contact general-row splicing device for main body of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114857 CN2765312Y (en) | 2004-12-24 | 2004-12-24 | Dynamic/static contact general-row splicing device for main body of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2765312Y true CN2765312Y (en) | 2006-03-15 |
Family
ID=36168229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420114857 Expired - Fee Related CN2765312Y (en) | 2004-12-24 | 2004-12-24 | Dynamic/static contact general-row splicing device for main body of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2765312Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100495608C (en) * | 2006-06-20 | 2009-06-03 | 杭州之江开关股份有限公司 | Dynamic-contact braided-line cold press of circuit breaker |
| CN101707151B (en) * | 2009-11-30 | 2011-10-05 | 李建民 | Cold extrusion process of breaker contact pigtail lines |
| CN109711078A (en) * | 2018-12-29 | 2019-05-03 | 云南电网有限责任公司电力科学研究院 | A kind of breaker contact system in short-term in tolerance course thermal stability calculation method |
-
2004
- 2004-12-24 CN CN 200420114857 patent/CN2765312Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100495608C (en) * | 2006-06-20 | 2009-06-03 | 杭州之江开关股份有限公司 | Dynamic-contact braided-line cold press of circuit breaker |
| CN101707151B (en) * | 2009-11-30 | 2011-10-05 | 李建民 | Cold extrusion process of breaker contact pigtail lines |
| CN109711078A (en) * | 2018-12-29 | 2019-05-03 | 云南电网有限责任公司电力科学研究院 | A kind of breaker contact system in short-term in tolerance course thermal stability calculation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060315 Termination date: 20101224 |