CN110085474A - A kind of closing device of vacuum interrupter - Google Patents
A kind of closing device of vacuum interrupter Download PDFInfo
- Publication number
- CN110085474A CN110085474A CN201910386610.2A CN201910386610A CN110085474A CN 110085474 A CN110085474 A CN 110085474A CN 201910386610 A CN201910386610 A CN 201910386610A CN 110085474 A CN110085474 A CN 110085474A
- Authority
- CN
- China
- Prior art keywords
- buffer
- pull bar
- upper cover
- vacuum interrupter
- metal pull
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
Abstract
The purpose of the present invention is to propose to a kind of size is small, rigidity is strong, high temperature resistant anti-aging, the closing device of the vacuum interrupter with auxiliary heat dissipation and electric conductivity.The closing device includes buffer upper cover, buffer lower cover, spring, metal pull bar and fixed pin, the spring is arranged in pairs between the buffer upper cover and buffer lower cover, the vertical activity in the upper end of the metal pull bar passes through the middle part of the buffer lower cover, the lower end of metal pull bar with vacuum interrupter for connecting, it is equipped with the hollow portion passed through for the metal pull bar in the middle part of the buffer upper cover, the fixed pin is horizontally through the both sides of the face and the hollow portion and hinged with the upper end of the metal pull bar of the buffer upper cover.
Description
Technical field
The invention belongs to electric power equipment technology fields, and in particular to a kind of closing device of vacuum interrupter.
Background technique
Vacuum interrupter largely uses in China's electric system, and domestic many producers are all in research and development vacuum interrupter.But
The closing device for being current vacuum interrupter is all insulated pull rod, size is big, intensity is lower, craftsmanship is poor, non-refractory,
It is easy to aging, without thermal diffusivity, without electric conductivity；Excess of stroke spring is all compressed spring, and the contact of vacuum interrupter great force value requires, so that pressure
The size of contracting power spring is big, and needs to replace the new spring of different yield strength ratios when adjustment spring power, therefore cause to provide
Source waste, at the same spring it is exposed it is outer be assembled in insulated pull rod, because considering heat dissipation problem without additional sheath, vulnerable to environmental factor shadow
It rings and accelerates aging, cause poor appearance, mechanical performance also unstable and problem that service life is not grown.
Summary of the invention
The object of the present invention is to provide a kind of size is small, rigidity is strong, high temperature resistant anti-aging, has auxiliary heat dissipation and conduction
The closing device of the vacuum interrupter of property.
The closing device of the vacuum interrupter proposed according to the present invention, including buffer upper cover, buffer lower cover, spring,
Metal pull bar and fixed pin, the spring are arranged in pairs between the buffer upper cover and buffer lower cover, and the metal is drawn
The vertical activity in the upper end of bar passes through the middle part of the buffer lower cover, and the lower end of metal pull bar is used to connect with vacuum interrupter,
The hollow portion passed through for the metal pull bar is equipped in the middle part of the buffer upper cover, the fixed pin is horizontally through the buffer
The both sides of the face of upper cover and the hollow portion are simultaneously hinged with the upper end of the metal pull bar.
Further, the upper surface of the buffer upper cover is equipped with the arc being slidably matched with vacuum interrupter main shaft
Circular arc processing is passed through on face, the surface of buffer upper cover.The setting of the cambered surface and buffer upper cover inner and outer wall surface
Circular arc processing can be reduced electric field strength, be improved the electromagnetic environment of closing device, improve opening for vacuum interrupter with uniform electric field
Attach together the job stability set.
Further, the upper end peripheral wall of the metal pull bar is equipped with a pair of relatively parallel plane.By this to plane with
The via hole of buffer lower cover adaptation is slidably matched, and guarantees to use the sliding of rear metal pull bar still smooth for a long time, improve durable
Property.
Further, the lower end surface of the buffer upper cover is equipped with the spring mounting groove for spring insertion, on the one hand
Can be convenient firm installation spring, on the other hand can to providing certain protection in spring use process, backward spring it is old
Change process increases the service life of spring.
Further, the buffer upper cover, buffer lower cover, spring, metal pull bar and fixed pin are alloy-steel casting,
To provide enough rigids, high temperature resistance and auxiliary heat dissipation and electric conductivity.
The closing device of vacuum interrupter of the invention compared with the existing closing device using insulated pull rod, have with
Lower advantage:
1, by setting the buffer knot using dual spring for closing device to mechanically stressed, electromagnetic field finite element analysis
Structure, the buffer structure are all made of with excellent mechanical strength, high temperature resistance, excellent auxiliary heat dissipation performance and electric conductivity
Structural member, including buffer upper cover, buffer lower cover, spring, metal pull bar and fixed pin, can be to meet vacuum interrupter big
Force value contact adapts to electromagnetic environment, the high temperature heat transfer environment of vacuum interrupter while requirement, improve the safety of closing device
And durability, the insulated pull rod size that can effectively solve vacuum interrupter is larger, intensity is lower, craftsmanship is poor, non-refractory,
It is easy to aging, without thermal diffusivity, without electric conductivity the problem of；
2, buffer upper cover and main shaft contact position are handled using circular arc, can improve the work of closing device with uniform electric field
Make stability；
3, the elastic-restoring force of closing device is adjusted, need to only adjust the spacing of buffer upper cover and buffer lower cover, and nothing
The new spring that different yield strength ratios need to be replaced reduces the waste of resource, saves maintenance cost.
Detailed description of the invention
Fig. 1 is decomposition texture schematic diagram of the invention.
Fig. 2 is mounting structure schematic diagram of the invention.
Fig. 3 is use attachment structure schematic diagram of the invention.
It wherein illustrates: 1, buffer upper cover；11, hollow portion；12, spring mounting groove；2, buffer lower cover；21, via hole；3,
Spring；4, metal pull bar；40, pin hole；41, plane；42, screw thread；5, fixed pin；6, vacuum interrupter；7, three-phase connecting lever；71,
Main transmission axis hole.
Specific embodiment
It is for example related each to a specific embodiment of the invention by the description to embodiment below against attached drawing
The shape of component, construction, the mutual alignment between each section and connection relationship, the effect of each section and working principle etc. are made into one
The detailed description of step.
Such as Fig. 1,2,3, the closing device of vacuum interrupter of the invention, including buffer upper cover 1, buffer lower cover 2, bullet
Spring 3, metal pull bar 4 and fixed pin 5, spring 3 are arranged in pairs between buffer upper cover 1 and buffer lower cover 2, metal pull bar 4
The vertical activity in upper end pass through the middle part of buffer lower cover 2, the lower end of metal pull bar 4 with vacuum interrupter 6 for connect, buffering
The hollow portion 11 passed through for metal pull bar 4 is equipped in the middle part of device upper cover 1, fixed pin 5 is horizontally through the both sides of the face of buffer upper cover 1
It is with hollow portion 11 and hinged with the upper end of metal pull bar 4.
Installation and working principle of the invention is as shown in Figures 2 and 3: drawing the upper end of gag lever post 4 to pass through buffer on metal
Spring is embedded in buffer upper cover 1, by pressing metal pull bar 4, after making spring-compressed, passed through in buffer upper cover 2 by lower cover 2
Fixed pin 5 makes fixed pin 5 also cross the pin hole 40 of the both sides of the face of buffer upper cover 1, hollow portion 11 and metal pull bar 4,
Make the limit of metal pull bar 4 in a buffer, main shaft passes through the main transmission axis hole 71 of three-phase connecting lever 7, main shaft band at this time
Dynamic metal pull bar 4 moves, and reaches the three-phase synchronous operation of vacuum interrupter 6.
As preferred embodiment, the upper surface of buffer upper cover 1 is equipped with to be slided with the main shaft of vacuum interrupter 6
Circular arc processing is passed through on the cambered surface 11 of cooperation, the surface of buffer upper cover 1.The setting of the cambered surface 11 and buffer upper cover 1
The circular arc on inner and outer wall surface is handled, and can be reduced electric field strength with uniform electric field, be improved the electromagnetic environment of closing device, mentioned
The job stability of the closing device of high vacuum arc-chutes 6.
Preferably, the upper end peripheral wall of metal pull bar 4 is equipped with a pair of relatively parallel plane 41.To plane 41 and delayed by this
The via hole 21 for rushing the adaptation of device lower cover 2 is slidably matched, and guarantees to use the sliding of rear metal pull bar 4 still smooth for a long time, improve resistance to
The property used.Metal pull bar 4 is connect by the screw thread 42 of lower end with vacuum interrupter 6.
Preferably, the lower end surface of buffer upper cover 1 is equipped with the spring mounting groove 12 being embedded in for spring 3, on the one hand can be square
Just on the other hand firm installation spring 3 can centainly be protected, the aging of backward spring 3 to providing in 3 use process of spring
Journey increases the service life of spring 3.
Preferably, buffer upper cover 1, buffer lower cover 2, spring 3, metal pull bar 4 and fixed pin 5 are alloy-steel casting,
To provide enough rigids, high temperature resistance and auxiliary heat dissipation and electric conductivity.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (5)
1. a kind of closing device of vacuum interrupter, it is characterised in that including buffer upper cover, buffer lower cover, spring, metal
Pull rod and fixed pin, the spring are arranged in pairs between the buffer upper cover and buffer lower cover, the metal pull bar
The vertical activity in upper end passes through the middle part of the buffer lower cover, and the lower end of metal pull bar is described for connecting with vacuum interrupter
The hollow portion passed through for the metal pull bar is equipped in the middle part of buffer upper cover, the fixed pin is horizontally through the buffer upper cover
Both sides of the face and the hollow portion and hinged with the upper end of the metal pull bar.
2. the closing device of vacuum interrupter according to claim 1, it is characterised in that the upper end of the buffer upper cover
Face is equipped with the cambered surface being slidably matched with vacuum interrupter main shaft, and circular arc processing is passed through on the surface of buffer upper cover.
3. the closing device of vacuum interrupter according to claim 1 or 2, it is characterised in that the upper end of the metal pull bar
Peripheral wall is equipped with a pair of relatively parallel plane.
4. the closing device of vacuum interrupter according to claim 3, it is characterised in that the lower end of the buffer upper cover
Face is equipped with the spring mounting groove for spring insertion.
5. the closing device of vacuum interrupter according to claim 4, it is characterised in that the buffer upper cover, buffer
Lower cover, spring, metal pull bar and fixed pin are alloy-steel casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910386610.2A CN110085474A (en) | 2019-05-10 | 2019-05-10 | A kind of closing device of vacuum interrupter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910386610.2A CN110085474A (en) | 2019-05-10 | 2019-05-10 | A kind of closing device of vacuum interrupter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110085474A true CN110085474A (en) | 2019-08-02 |
Family
ID=67419561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910386610.2A Pending CN110085474A (en) | 2019-05-10 | 2019-05-10 | A kind of closing device of vacuum interrupter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110085474A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021115214A1 (en) * | 2019-12-11 | 2021-06-17 | 上海平高天灵开关有限公司 | Deformable conductive connection mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110019639A (en) * | 2009-08-20 | 2011-02-28 | 주식회사 비츠로테크 | Triphook damper of vacuum interruptor controller |
| CN201838507U (en) * | 2010-09-09 | 2011-05-18 | 平高集团有限公司 | Vacuum circuit breaker and tripping cushioning device thereof |
| CN202076185U (en) * | 2011-05-19 | 2011-12-14 | 山东鼎鑫电气科技有限公司 | Transmission system of high voltage vacuum circuit breaker |
| CN103123884A (en) * | 2013-01-24 | 2013-05-29 | 平高集团有限公司 | Contact spring device |
| CN204480954U (en) * | 2015-01-20 | 2015-07-15 | 西安智联电气有限公司 | A kind of compression spring regulating part |
| CN109185384A (en) * | 2018-11-23 | 2019-01-11 | 高旭春 | Freely falling body restrains buffer to other side |
-
2019
- 2019-05-10 CN CN201910386610.2A patent/CN110085474A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110019639A (en) * | 2009-08-20 | 2011-02-28 | 주식회사 비츠로테크 | Triphook damper of vacuum interruptor controller |
| CN201838507U (en) * | 2010-09-09 | 2011-05-18 | 平高集团有限公司 | Vacuum circuit breaker and tripping cushioning device thereof |
| CN202076185U (en) * | 2011-05-19 | 2011-12-14 | 山东鼎鑫电气科技有限公司 | Transmission system of high voltage vacuum circuit breaker |
| CN103123884A (en) * | 2013-01-24 | 2013-05-29 | 平高集团有限公司 | Contact spring device |
| CN204480954U (en) * | 2015-01-20 | 2015-07-15 | 西安智联电气有限公司 | A kind of compression spring regulating part |
| CN109185384A (en) * | 2018-11-23 | 2019-01-11 | 高旭春 | Freely falling body restrains buffer to other side |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021115214A1 (en) * | 2019-12-11 | 2021-06-17 | 上海平高天灵开关有限公司 | Deformable conductive connection mechanism |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20190802 |