CN102280324A - Contact used for high-voltage circuit breaker - Google Patents
Contact used for high-voltage circuit breaker Download PDFInfo
- Publication number
- CN102280324A CN102280324A CN2011101349961A CN201110134996A CN102280324A CN 102280324 A CN102280324 A CN 102280324A CN 2011101349961 A CN2011101349961 A CN 2011101349961A CN 201110134996 A CN201110134996 A CN 201110134996A CN 102280324 A CN102280324 A CN 102280324A
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- CN
- China
- Prior art keywords
- square hole
- contact
- grid sheet
- striking grid
- circuit breaker
- 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.)
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Abstract
The invention discloses a contact used for a high-voltage circuit breaker. A conductive bar is provided with a square hole; a conductive block extends to the left upper part from the right side edge of the square hole; the width of the conductive block is smaller than the width of the square hole; the upper surface of the left end of the conductive block is fixedly connected with a silver plating contact point; the left side of the silver plating contact point is an arc striking grid sheet which is inclined to the left upper part; the two ends of the bottom of the arc striking grid sheet is fixedly connected to the middle of the square hole; two sides of the conductive block are symmetrically provided with magnet increasing blocks; the bottom of each magnet increasing block is fixedly connected to the side edge of the square hole; and the arc striking grid sheet and the magnet increasing blocks are cooperatively used on the conductive bar to more effectively guarantee the disjunction performance of the high-voltage circuit breaker. The contact has the advantages of simple structure and excellent performance, is convenient to install and is convenient to assemble.
Description
Technical field
The present invention relates to the primary cut-out in a kind of high-voltage switch gear cabinet equipment, be specifically related to the structure of contact terminal of primary cut-out.
Background technology
The dynamic and static contact of existing primary cut-out generally is cabinet shape or spherical structure, when circuit breaker cut-offs, can produce electric arc during dynamic and static contact contact disjunction.The contact of vacuum high-pressure circuit breaker commonly used is arranged in a vacuum tube, comes arc extinguishing by vacuum.Because vacuum tube is the global facility of a sealing, after long-term the use, vacuum degree can descend, and do not have a kind of device that can accurately detect vacuum degree at present, therefore, in fact, the vacuum high-pressure circuit breaker drops to certain value in vacuum degree makes operation during disjunction, can produce electric arc even blast.
Summary of the invention
The purpose of this invention is to provide a kind of primary cut-out contact, avoid the burning of electric arc on contact, thereby guaranteed that primary cut-out has good interrupting performance with arc extinguishing function.
The technical solution used in the present invention is: comprise busbar, have a square hole on the busbar, the right edge of square hole is extended a conducting block to the upper left side, and the width of conducting block is less than the width of square hole, affixed silver-plated contact on the left end upper surface of conducting block; Left side, silver-plated contact is the striking grid sheet that tilts to the upper left side, and two ends, striking grid sheet bottom are fixed in the centre position of square hole; The both sides of conducting block respectively are symmetrical arranged one and increase magnetic patch; Increase the side of the affixed square hole in bottom of magnetic patch.
The invention has the beneficial effects as follows: adopt striking grid sheet and increase magnetic patch to be used on busbar, more effectively guarantee the interrupting performance of primary cut-out, reliable in structure, easy for installation is convenient to assembling and function admirable.
Description of drawings
Fig. 1 is a structure chart of the present invention;
Among the figure: 1. busbar; 2. square hole; 3. striking grid sheet; 4. silver-plated contact; 5. increase magnetic patch; 6. conducting block.
Embodiment
Referring to Fig. 1, the present invention includes busbar 1, by busbar 1, striking grid sheet 3, contact 4, increase magnetic patch 5 and form, have a square hole 2 on the busbar 1, extend a conducting block 6 in the right edge of square hole 2 to the upper left side, the width of conducting block 6 is less than the width of square hole 2.The silver-plated contact 4 of fixing welding on the upper surface of the left end of conducting block 6.In the left side of silver-plated contact 4 a striking grid sheet 3 is arranged, two ends, striking grid sheet 3 bottom are fixed on the centre position of square hole 2, and striking grid sheet 3 tilts to the upper left side, and the angle of inclination between striking grid sheet 3 and the busbar 1 is 45 degree.Respectively be symmetrical arranged one in the both sides of conducting block 6 and increase magnetic patch 5, the bottom that increases magnetic patch 5 is fixed on the side of square hole 2, can boss be set in the bottom that increases magnetic patch 5, boss is riveted in the left-right symmetric groove of square hole 2 by interference fit, can guarantee to increase magnetic patch 5 contacts with the reliable of busbar 1, and make that to increase magnetic patch 5 easy for installation, raise the efficiency.
When disjunction produced electric arc, striking grid sheet 3 was reliable equipotential with busbar 1, and the electric arc of busbar 1 is jumped onto striking grid sheet 3, reduced the scaling loss of electric arc to contact 4, had protected contact 4 to a certain extent, had guaranteed the break performance of primary cut-out.Increase the self-excitation magnetic field that magnetic patch 5 strengthens voltage contact area, the electric arc that produces when making the contact disjunction can be transferred on the striking grid sheet 3 fast, increases being used of magnetic patch 5 and striking grid sheet 3, makes the contact obtain good protection.If have only striking grid sheet 3 separately, so when the contact disjunction produces electric arc because the electric power of voltage contact area is strong inadequately, can not be fast arc transfer to striking grid sheet 3, cause contact 4 scaling loss serious, the break performance of primary cut-out is reduced greatly.If only increase magnetic patch 5 separately, so when the contact disjunction produces electric arc since the contact front do not have can transferred arc thing, then electric arc still can burn on contact 4, causes contact 4 scaling loss serious, influences the interrupting performance of circuit breaker.Be used the effect that just can reach effective striking so have only striking grid sheet 3 and increase magnetic patch 5, more advantageously protect contact 4, guarantee the break performance of primary cut-out.
Claims (1)
1. contact that is used for primary cut-out, comprise busbar (1), it is characterized in that: have a square hole (2) on the busbar (1), the right edge of square hole (2) is extended a conducting block (6) to the upper left side, the width of conducting block (6) is less than the width of square hole (2), affixed silver-plated contact (4) on the left end upper surface of conducting block (6); Left side, silver-plated contact (4) is the striking grid sheet (3) that tilts to the upper left side, and two ends, striking grid sheet (3) bottom are fixed in the centre position of square hole (2); The both sides of conducting block (6) respectively are symmetrical arranged one and increase magnetic patch (5); Increase the side of the affixed square hole in bottom (2) of magnetic patch (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101349961A CN102280324A (en) | 2011-05-23 | 2011-05-23 | Contact used for high-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101349961A CN102280324A (en) | 2011-05-23 | 2011-05-23 | Contact used for high-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102280324A true CN102280324A (en) | 2011-12-14 |
Family
ID=45105703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101349961A Pending CN102280324A (en) | 2011-05-23 | 2011-05-23 | Contact used for high-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102280324A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104246958A (en) * | 2012-03-13 | 2014-12-24 | 黑格电子股份有限公司 | Modular electrical protection device consisting of separate subassemblies |
| CN105321751A (en) * | 2014-07-31 | 2016-02-10 | 河村电器产业株式会社 | DC circuit breaker |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05135680A (en) * | 1991-11-11 | 1993-06-01 | Matsushita Electric Works Ltd | Device for extinguishing arc |
| JPH09106747A (en) * | 1995-10-11 | 1997-04-22 | Fuji Electric Co Ltd | Circuit breaker |
| CN2938360Y (en) * | 2006-08-23 | 2007-08-22 | 大全集团有限公司 | Closed type drc striking circuit breaker |
| CN201780947U (en) * | 2009-11-20 | 2011-03-30 | 大全集团有限公司 | Circuit breaker arc striking sheet |
| CN102044388A (en) * | 2011-01-14 | 2011-05-04 | 江苏辉能电气有限公司 | Static contact structure of moulded case circuit breaker |
| CN202111026U (en) * | 2011-05-23 | 2012-01-11 | 镇江泰丰电工设备制造有限公司 | Contact for high-voltage breaker |
-
2011
- 2011-05-23 CN CN2011101349961A patent/CN102280324A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05135680A (en) * | 1991-11-11 | 1993-06-01 | Matsushita Electric Works Ltd | Device for extinguishing arc |
| JPH09106747A (en) * | 1995-10-11 | 1997-04-22 | Fuji Electric Co Ltd | Circuit breaker |
| CN2938360Y (en) * | 2006-08-23 | 2007-08-22 | 大全集团有限公司 | Closed type drc striking circuit breaker |
| CN201780947U (en) * | 2009-11-20 | 2011-03-30 | 大全集团有限公司 | Circuit breaker arc striking sheet |
| CN102044388A (en) * | 2011-01-14 | 2011-05-04 | 江苏辉能电气有限公司 | Static contact structure of moulded case circuit breaker |
| CN202111026U (en) * | 2011-05-23 | 2012-01-11 | 镇江泰丰电工设备制造有限公司 | Contact for high-voltage breaker |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104246958A (en) * | 2012-03-13 | 2014-12-24 | 黑格电子股份有限公司 | Modular electrical protection device consisting of separate subassemblies |
| CN104246958B (en) * | 2012-03-13 | 2018-08-28 | 黑格电子股份有限公司 | The modular electrical protective device being made of independent sub-component |
| CN105321751A (en) * | 2014-07-31 | 2016-02-10 | 河村电器产业株式会社 | DC circuit breaker |
| CN105321751B (en) * | 2014-07-31 | 2018-01-05 | 河村电器产业株式会社 | Dc circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhuang Minglong Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111214 |