CN209626130U - Bounce-proof vacuum circuit breaker - Google Patents
Bounce-proof vacuum circuit breaker Download PDFInfo
- Publication number
- CN209626130U CN209626130U CN201920594012.XU CN201920594012U CN209626130U CN 209626130 U CN209626130 U CN 209626130U CN 201920594012 U CN201920594012 U CN 201920594012U CN 209626130 U CN209626130 U CN 209626130U
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- Prior art keywords
- vacuum circuit
- circuit breaker
- bounce
- pressing plate
- excess
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a kind of bounce-proof vacuum circuit breakers, increase nonelastomeric shims and pad pressing plate on excess of stroke screw rod, the nonelastomeric shims and pad pressing plate are sleeved on excess of stroke screw rod, the nonelastomeric shims are arranged above excess of stroke spring stand, and the pad pressing plate is arranged above nonelastomeric shims.The bounce-proof vacuum circuit breaker of the utility model can be significantly reduced closing rebound amount.
Description
Technical field
The utility model relates to a kind of vacuum circuit breaker more particularly to a kind of vacuum circuit breakers that can reduce closing rebound situation
Device belongs to electric field.
Background technique
The division of vacuum circuit breaker is to be realized by the dynamic/static contact opening and closing of vacuum interrupter, when closing a floodgate, moves touching
Head moves simultaneously tight closure to static contact with certain speed together, will form collision reaction power in collision process.Because
Moving contact and static contact are rigidity, and making process is an elastic collision process.It can be if closing rebound goes beyond the scope
Moment causes electric system or equipment to generate the LC higher-order of oscillation, and the overvoltage for vibrating generation can damage the insulation of electrical equipment,
It can make to generate melting welding between dynamic/static contact.Entire electric system and breaker itself can be made if bad to the control of spring amplitude
At influence.For the problem that mesohigh breaker, especially high-voltage circuitbreaker, this is one and has to properly settle.With
For 126KV vacuum circuit breaker, by it compared with 10-35KV vacuum circuit breaker, contact quality is bigger, and closing speed is higher, row
Cheng Gengchang is thus in making process, and the kinetic energy and momentum of moving contact are bigger, and the rebound of formation is more difficult to eliminate.According to general side
Method, the material and shape for changing collision object can be taken by reducing collision spring, but because of the structure of contact in vacuum circuit breaker
There is the design of arc-chutes to be determined with rigidity, buffering energy-absorbing measure can not be increased.Thus 126KV vacuum circuit breaker Bounce distance is even
More than 10ms, danger coefficient is higher.
Summary of the invention
Technical problem to be solved in the utility model is the Bounce distance for reducing mesohigh vacuum circuit breaker.
In order to solve the above-mentioned technical problem, the bounce-proof vacuum circuit breaker of the utility model, increases non-on excess of stroke screw rod
Elastomeric pad and pad pressing plate, the nonelastomeric shims and pad pressing plate are sleeved on excess of stroke screw rod, the nonelastomeric shims setting
Above excess of stroke spring stand, the pad pressing plate is arranged above nonelastomeric shims.
In above-mentioned technical proposal, the pad pressing plate is steel plate, and the nonelastomeric shims are felt or polyurethane.
In above-mentioned technical proposal, 6 to 10 millimeters of thickness of compressive plate of the pad, the nonelastomeric shims are 9 to 11 millimeters.
The bounce-proof vacuum circuit breaker of the utility model can be significantly reduced closing rebound amount.
Detailed description of the invention
Fig. 1 is the cross-sectional view of an outdoor vacuum circuit breaker wherein phase；
Fig. 2 is moving contact magnified partial view in Fig. 1；
Fig. 3 is nonelastomeric shims and pad pressing plate installation site enlarged drawing.
Wherein, 1- upper flange, 2- arc-chutes external support casing, 3- vacuum interrupter, the dynamic touching core of 4-, 5- butterfly bullet
Spring washer, 6- static contact seat, 7- slide fingertip, 8- excess of stroke spring, 9- excess of stroke screw rod, 10- locking nut, 11- insulation drawing
Bar, 12- pillar sleeve, 13- insulated pull rod adjust screw head, connecting lever in 14-, the outer connecting lever of 15-, 16- crank arm box, 17- mistake
Cross flange, 18- guide pad, 19- excess of stroke spring stand, 20- gasket, 21- pad pressing plate.
Specific embodiment
The utility model is described in detail by taking 126KV outdoor vacuum circuit breaker as an example below.
Referring to Fig. 1 to 3, the bounce-proof vacuum circuit breaker concrete scheme of the utility model is all excess of stroke spiral shells in breaker
Closed assembly heat curing type nonelastomeric shims 20 and pad pressing plate 21, prevent the material in equipment heating using heat curing type nonelastomeric shims on bar 9
Material deformation causes contact pressure to reduce, and deteriorates failure further.What heat curing type nonelastomeric shims 20 and pad pressing plate 21 were arranged
Position is in excess of stroke screw rod 9 close to one end of vacuum interrupter 3, and the heat curing type nonelastomeric shims 20 are arranged in excess of stroke Spring Card
19 top of seat, the pad pressing plate 21 are arranged above heat curing type nonelastomeric shims 20.The pad pressing plate 21 is steel plate, thickness 6
Millimeter, the heat curing type nonelastomeric shims 20 are felt or polyurethane.By taking polyurethane as an example, 10 millimeters of thickness, stress after installation
5000 newton or so can bear 10,000 times or more and impact.The program is suitable for the various model vacuum circuit breakers of mesohigh, especially suitable
For High Voltage Outdoor vacuum circuit breaker.
Following table is specific experiment data.
Claims (3)
1. bounce-proof vacuum circuit breaker, it is characterised in that: increase nonelastomeric shims and pad pressing plate, the non-ballistic on excess of stroke screw rod
Property gasket and pad pressing plate be sleeved on excess of stroke screw rod, the nonelastomeric shims are arranged above excess of stroke spring stand, the pad
Pressing plate is arranged above nonelastomeric shims.
2. bounce-proof vacuum circuit breaker as described in claim 1, it is characterised in that: the pad pressing plate is steel plate, the non-ballistic
Property gasket be felt or polyurethane.
3. bounce-proof vacuum circuit breaker as claimed in claim 1 or 2, it is characterised in that: 6 to 10 milli of pad thickness of compressive plate
Rice, the nonelastomeric shims are 9 to 11 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920594012.XU CN209626130U (en) | 2019-04-28 | 2019-04-28 | Bounce-proof vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920594012.XU CN209626130U (en) | 2019-04-28 | 2019-04-28 | Bounce-proof vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209626130U true CN209626130U (en) | 2019-11-12 |
Family
ID=68459059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920594012.XU Active CN209626130U (en) | 2019-04-28 | 2019-04-28 | Bounce-proof vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209626130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887800A (en) * | 2019-04-28 | 2019-06-14 | 江苏东源电器集团股份有限公司 | Bounce-proof vacuum circuit breaker |
-
2019
- 2019-04-28 CN CN201920594012.XU patent/CN209626130U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887800A (en) * | 2019-04-28 | 2019-06-14 | 江苏东源电器集团股份有限公司 | Bounce-proof vacuum circuit breaker |
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