CN201060789Y - Contact of vacuum breaker - Google Patents
Contact of vacuum breaker Download PDFInfo
- Publication number
- CN201060789Y CN201060789Y CNU2007200249791U CN200720024979U CN201060789Y CN 201060789 Y CN201060789 Y CN 201060789Y CN U2007200249791 U CNU2007200249791 U CN U2007200249791U CN 200720024979 U CN200720024979 U CN 200720024979U CN 201060789 Y CN201060789 Y CN 201060789Y
- Authority
- CN
- China
- Prior art keywords
- contact
- fixed contact
- sliding
- moving
- sliding 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 - Lifetime
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model relates to a vacuum circuit breaker contact, which comprises a moving contact and a static contact, wherein the moving contact is inserted on the end cover of the moving contact on one side of an insulating casing, and an expansion sleeve playing the sealing function is connected between the moving contact and the end cover of the moving contact; the static contact is connected on the inner side of the end cover of the static contact on the other side. The output shaft of the static contact is fixedly inserted on the end cover of the static contact, a sliding contact is fixedly connected on the end of the output shaft of the static contact positioned in the insulating casing, the sliding contact is circular pipe shaped, thread connected with the output shaft of the static contact is arranged at one end of the sliding contact, a sliding contact point is arranged on the inner wall at the other end, a supporting plate is arranged between the thread of the sliding contact and the sliding contact point, and a mounting hole is arranged in the middle of the supporting plate; the static contact is inserted into the sliding contact. The static contact is connected on the end cover of the static contact in a floating way, thereby effectively relieving the switching in impact of the moving contact, preventing the bounce, prolonging the service life of the contact, and reducing the noise.
Description
Technical field
The utility model relates to a kind of contacts for vacuum-break switches.
Background technology
Utilize vacuum to be called vacuum circuit-breaker as the circuit breaker of insulation between contact and arc-extinguishing medium.The insulation crust of vacuum circuit-breaker arc control device is made by glass or pottery, the moving contact that is provided with fixing fixed contact in the insulation crust and controlled by operating mechanism, and the sealing during the moving contact motion is by bellows.Bellows is flexible in the regime of elastic deformation that allows, and arranged sufficiently high mechanical endurance.The vacuum circuit-breaker of this structure, moving contact because of minute, feed motion moves, fixed contact is fixed, in the making process, the moving contact fixed contact that can clash produces very big strike note, between contact, produce spring, cause the excessive scaling loss and the wearing and tearing of contact.
Summary of the invention
The purpose of this utility model provides a kind of impact between the contact, little contacts for vacuum-break switches of shellproof breaker tripping and closing noise alleviated.
For achieving the above object, the utility model adopts following technical scheme:
A kind of contacts for vacuum-break switches described in the utility model comprises moving contact and fixed contact, and moving contact is inserted on the moving contact end cap of insulation crust one side, is connected with the telescopic that plays sealing function between moving contact and the moving contact end cap; Fixed contact is connected the inboard of the fixed contact end cap of opposite side, it is characterized in that: the fixed contact output shaft fixedly is inserted into stationary contact and covers, the end that the fixed contact output shaft is positioned at insulation crust is fixedly connected with sliding contact, sliding contact is the pipe shape, the one end has the screw thread that is connected with the fixed contact output shaft, the inwall of the other end has sliding contact, has supporting bracket between the screw thread of sliding contact and the sliding contact, and the centre of supporting bracket has installing hole; Fixed contact is inserted in the sliding contact, cylindrical fixed contact conducting rod, fixed contact guide post that fixed contact comprises fixed contact, links into an integrated entity with fixed contact, the diameter of fixed contact conducting rod and the internal diameter of sliding contact adapt, the fixed contact guide post is inserted in the installing hole on the supporting bracket, and locks with lock pin; Between fixed contact conducting rod and supporting bracket, be provided with steel sheet spring.
After adopting technique scheme, fixed contact floats and is connected stationary contact and covers, and can effectively alleviate switch on of moving contact and impact, and prevents spring, prolongs contact and sends out useful life, reduces noise.
Description of drawings
Accompanying drawing is the structural representation of an embodiment of the utility model.
Embodiment
As shown in drawings, a kind of contacts for vacuum-break switches described in the utility model comprises moving contact 1 and fixed contact, and moving contact 1 and fixed contact all are installed in the vacuum chamber that is made of insulation crust 3.The two ends of insulation crust 3 are respectively moving contact end cap 31 and fixed contact end cap 32.Moving contact 1 is inserted on the moving contact end cap 31 of insulation crust 3 one sides, is connected with the telescopic 11 that plays sealing function between moving contact 1 and the moving contact end cap 31; Fixed contact 2 is connected the inboard of fixed contact end cap 32.Fixed contact output shaft 4 fixedly is inserted on the fixed contact end cap 32, can adopt welding also can adopt the mode that is threaded, as long as guarantee good seal.The end that fixed contact output shaft 4 is positioned at insulation crust 3 is fixedly connected with sliding contact 5 by screw thread, sliding contact 5 is the pipe shape, the one end has the screw thread that is connected with fixed contact output shaft 4, the inwall of the other end has sliding contact 51, have supporting bracket 52 between the screw thread of sliding contact 5 and the sliding contact 51, the centre of supporting bracket 52 has installing hole; Fixed contact is inserted in the sliding contact 5.Cylindrical fixed contact conducting rod 2A, fixed contact guide post 2B that fixed contact comprises fixed contact 2, links into an integrated entity with fixed contact 2, the diameter of fixed contact conducting rod 2A and the internal diameter of sliding contact 51 adapt, fixed contact guide post 2B is inserted in the installing hole on the supporting bracket 52, and locks with lock pin 2C; Between fixed contact conducting rod 2A and supporting bracket 52, be provided with steel sheet spring 22.
When closing a floodgate, moving contact 1 moves to the fixed contact direction rapidly under the effect of driving mechanism, when moving contact 1 with after fixed contact contact, fixed contact is squeezed, slip in sliding contact 5, steel sheet spring 22 is compressed, and plays cushioning effect, the minimizing impulsive force.Can reduce the noise that moving contact and fixed contact contact-impact produce like this, can also prolong the useful life of contact simultaneously, avoid moving contact to produce spring, reduce electrical arc erosion degree between moving contact and the fixed contact.
Separating brake at first, steel sheet spring 22 promotes fixed contacts and moving contact 1 moves together, helps to improve just-off speed.
Claims (1)
1. contacts for vacuum-break switches, comprise moving contact (1) and fixed contact, moving contact (1) is inserted on the moving contact end cap (31) of insulation crust (3) one sides, is connected with the telescopic (11) that plays sealing function between moving contact (1) and the moving contact end cap (31); Fixed contact is connected the inboard of the fixed contact end cap (32) of opposite side, it is characterized in that: fixed contact output shaft (4) fixedly is inserted on the fixed contact end cap (32), the end that fixed contact output shaft (4) is positioned at insulation crust (3) is fixedly connected with sliding contact (5), sliding contact (5) is the pipe shape, the one end has the screw thread that is connected with fixed contact output shaft (4), the inwall of the other end has sliding contact (51), have supporting bracket (52) between the screw thread of sliding contact (5) and the sliding contact (51), the centre of supporting bracket (52) has installing hole; Fixed contact is inserted in the sliding contact (5), cylindrical fixed contact conducting rod (2A), fixed contact guide post (2B) that fixed contact comprises fixed contact (2), links into an integrated entity with fixed contact (2), the internal diameter of the diameter of fixed contact conducting rod (2A) and sliding contact (51) adapts, fixed contact guide post (2B) is inserted in the installing hole on the supporting bracket (52), and locks with lock pin (2C); Between fixed contact conducting rod (2A) and supporting bracket (52), be provided with steel sheet spring (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200249791U CN201060789Y (en) | 2007-07-16 | 2007-07-16 | Contact of vacuum breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200249791U CN201060789Y (en) | 2007-07-16 | 2007-07-16 | Contact of vacuum breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060789Y true CN201060789Y (en) | 2008-05-14 |
Family
ID=39409278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200249791U Expired - Lifetime CN201060789Y (en) | 2007-07-16 | 2007-07-16 | Contact of vacuum breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060789Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275147A (en) * | 2017-07-31 | 2017-10-20 | 安徽天电气技术股份有限公司 | Breaker bounce-proof device |
| CN107331571A (en) * | 2017-07-20 | 2017-11-07 | 中国电力科学研究院 | A kind of vacuum arc-extinguishing chamber contact and its control method for switched capacitor group |
| CN107799330A (en) * | 2017-11-24 | 2018-03-13 | 漳州聚安美电气科技有限公司 | The contact structure of anti-switch contact contact gap |
-
2007
- 2007-07-16 CN CNU2007200249791U patent/CN201060789Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107331571A (en) * | 2017-07-20 | 2017-11-07 | 中国电力科学研究院 | A kind of vacuum arc-extinguishing chamber contact and its control method for switched capacitor group |
| CN107331571B (en) * | 2017-07-20 | 2021-04-30 | 中国电力科学研究院 | Vacuum arc-extinguishing chamber contact for switching capacitor bank and control method thereof |
| CN107275147A (en) * | 2017-07-31 | 2017-10-20 | 安徽天电气技术股份有限公司 | Breaker bounce-proof device |
| CN107799330A (en) * | 2017-11-24 | 2018-03-13 | 漳州聚安美电气科技有限公司 | The contact structure of anti-switch contact contact gap |
| CN107799330B (en) * | 2017-11-24 | 2020-09-15 | 漳州聚安美电气科技有限公司 | Contact structure for preventing contact gap of switch contact |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070716 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |