CN111477495B - Air insulation breaker isolation integrated switch - Google Patents
Air insulation breaker isolation integrated switch Download PDFInfo
- Publication number
- CN111477495B CN111477495B CN202010447007.3A CN202010447007A CN111477495B CN 111477495 B CN111477495 B CN 111477495B CN 202010447007 A CN202010447007 A CN 202010447007A CN 111477495 B CN111477495 B CN 111477495B
- Authority
- CN
- China
- Prior art keywords
- contact
- switch
- pull rod
- isolator
- vacuum tube
- 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.)
- Active
Links
- 238000002955 isolation Methods 0.000 title claims abstract description 26
- 238000009413 insulation Methods 0.000 title claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000004308 accommodation Effects 0.000 claims 1
- 230000008033 biological extinction Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000016507 interphase Effects 0.000 description 3
- 230000009194 climbing Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000000819 phase cycle Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- 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
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
The invention provides an air insulation breaker isolation integrated switch, and belongs to the technical field of breaker isolation switches. The invention comprises an insulating fixed supporting plate, wherein three vacuum arc-extinguishing chambers are arranged in parallel in the middle of the insulating fixed supporting plate, a bus terminal is arranged on a movable conducting rod of the vacuum arc-extinguishing chambers, the movable conducting rod is connected with a vacuum tube pull rod through a butterfly-shaped buffer component, the vacuum tube pull rod is connected with a breaker switch transmission shaft for driving the vacuum tube pull rod to act, and three isolating switches corresponding to the vacuum arc-extinguishing chambers are arranged in parallel in the lower of the insulating fixed supporting plate.
Description
Technical Field
The invention belongs to the technical field of circuit breaker isolating switches, and particularly relates to an air insulation circuit breaker isolating integrated switch.
Background
In order to meet the requirements, various switch cabinets are continuously emerging. The major technical breakthrough of the method mainly comes from the application of SF6 gas insulation technology to electrical equipment for more than twenty years ago. SF6 has excellent insulating property and excellent cooling arc characteristic, greatly reduces the size of electrical equipment in the application of the electrical equipment, and improves the reliability of equipment insulation, so that SF6 insulating switch cabinets are widely applied to the electric power market. Although SF6 gas-insulated switchgear has many excellent properties, SF6 gas is defined as a limited greenhouse gas, and SF6 is decomposed to form toxic sulfur-low-fluorine compounds during arc discharge, and third, a sealed gas tank thereof is operated under a pressurized state, sealing requirements are high in processing difficulty, and once a drain is leaked, accidents are easily caused, and some circuit breakers using a vacuum interrupter lack a protection device and are easily damaged.
Disclosure of Invention
In order to comprehensively solve the problems, and particularly to overcome the defects in the prior art, the invention provides an air insulation circuit breaker isolation integrated switch.
The invention adopts the following technical means: the utility model provides an air insulation circuit breaker keeps apart integral type switch, includes insulating fixed backup pad, the middle part of insulating fixed backup pad is provided with three vacuum interrupter side by side, be provided with the generating line wiring end on the movable conducting rod of vacuum interrupter, movable conducting rod is connected with the vacuum tube pull rod that is used for operating the contact combination or disconnection of vacuum interrupter through the butterfly buffer assembly that can play the cushioning effect, the vacuum tube pull rod is connected with the circuit breaker switch transmission shaft that is used for driving its action, the lower part of insulating fixed backup pad is provided with three isolation switch that corresponds with vacuum interrupter side by side, isolation switch includes the isolation switch contact that is connected with the inlet wire post of vacuum interrupter lower extreme, the isolation switch that corresponds with the isolation switch contact, is used for driving the isolation switch transmission shaft that the isolation switch acted, isolation switch contact bottom corresponds and is connected with the generating line and carries out the post, insulating fixed backup pad bottom is provided with isolation switch ground contact, switch outgoing line contact seat that corresponds with the generating line.
The isolating switch grounding contact is arranged on the insulating fixed supporting plate, the upper end of the bus carrying column penetrates through a through hole in the middle of the isolating switch grounding contact to be hinged with the bottom of the isolating switch contact, and the switch outgoing line contact seat is sleeved at the upper end of the bus carrying column and used for connecting the bus carrying column and the isolating switch grounding contact.
The butterfly-shaped buffer assembly comprises a buffer shell, the lower part of the vacuum tube pull rod and the upper part of the movable conducting rod extend into the buffer shell, a piston groove is formed in the upper end part of the movable conducting rod, a piston part corresponding to the piston groove is arranged on the lower part of the vacuum tube pull rod, a convex block is formed on the end part of the piston part, a baffle plate corresponding to the piston part and used for blocking the convex block is formed on the end part of the piston part, a buffer spring sleeved outside the vacuum tube pull rod is arranged on the upper part of the baffle plate, the buffer shell is fixed with the vacuum tube pull rod, a containing groove corresponding to the buffer spring and the movable conducting rod is formed in the buffer shell, and the buffer shell and the vacuum tube pull rod can move up and down along the movable conducting rod.
Furthermore, the buffer shell is made of rubber materials, and the buffer spring is a tetrafluoro spring tube.
The invention has the beneficial effects that: the invention has simple structure, the three phases of the switch are in independent phase sequence, the single-phase switch is fixed by the insulating fixed support plate, the interphase is isolated by the environment-friendly insulating partition plate, the interphase climbing distance of the switch is increased, the whole switch performance is prevented from being influenced by single-phase faults, the air is used as a junction medium, the vacuum arc extinction technology is adopted for arc extinction, the special gas is replaced for insulating and arc extinction, the switch is not required to be installed in a sealed environment, the later maintenance is convenient, the butterfly-shaped buffer component is arranged, the buffer function can be realized when the contacts of the vacuum arc extinction chamber are combined, the contacts can be assisted to be quickly disconnected when the contacts are disconnected, the vacuum arc extinction chamber can be well protected, and the use effect is good.
Drawings
FIG. 1 is a schematic diagram of the front view of the present invention;
FIG. 2 is a schematic left-hand view of the present invention;
FIG. 3 is a right side view of the present invention;
FIG. 4 is a schematic view of the overall structure of the present invention;
FIG. 5 is a schematic view of the connection structure of the butterfly damper assembly of the present invention;
fig. 6 is an enlarged partial schematic view of fig. 5.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 1-6, this embodiment provides an air insulation circuit breaker isolation integrated switch, including insulating fixed backup pad 6, the middle part of insulating fixed backup pad 6 is provided with three vacuum interrupter 5 side by side, be provided with busbar terminal 4 on vacuum interrupter 5's the movable conducting rod 501, movable conducting rod 501 is connected with the vacuum tube pull rod 2 that is used for operating vacuum interrupter 5's contact 502 to combine or break through butterfly buffer module 3 that can play the cushioning effect, contact 502 includes the movable contact that upper portion is connected with movable conducting rod 501 to and the fixed contact that is connected with lower inlet wire post, vacuum tube pull rod 2 is connected with circuit breaker switch transmission shaft 1 that is used for driving its action, the lower part of insulating fixed backup pad 6 is provided with three isolation switch that corresponds with vacuum interrupter 5 side by side, isolation switch includes the isolation knife switch contact 9 that is connected with vacuum interrupter 5 lower extreme, isolation knife switch 7 that corresponds with isolation knife switch contact 9, isolation switch transmission shaft 8 that is used for driving isolation knife 7 action, isolation switch contact bottom connection has the contact 901 that corresponds to be provided with the contact post of isolation switch contact 10, the bottom contact post that is provided with the insulating fixed contact post 10 and is connected with the busbar 11.
The isolating switch grounding contact 10 is arranged on the insulating fixed supporting plate 6, the upper end of the bus bar carrying column 901 passes through a through hole 1001 in the middle of the isolating switch grounding contact 10 and is hinged with the bottom of the isolating switch contact 9, and the switch outgoing line contact seat 11 is sleeved on the upper end of the bus bar carrying column 901 and is used for connecting the bus bar carrying column 901 and the isolating switch grounding contact 10.
The butterfly-shaped buffer assembly 3 comprises a buffer shell 301, the lower part of the vacuum tube pull rod 2 and the upper part of the movable conducting rod 501 extend into the buffer shell 301, a piston groove 504 is formed in the upper end part of the movable conducting rod 501, a piston part 201 corresponding to the piston groove 504 is arranged in the lower part of the vacuum tube pull rod 2, a lug 202 is formed in the end part of the piston part 201, a baffle 505 corresponding to the piston part 201 and used for blocking the lug 202 is formed in the end part of the piston groove 504, a buffer spring 203 sleeved outside the vacuum tube pull rod 2 is arranged on the upper part of the baffle 505, the buffer shell 301 is fixed with the vacuum tube pull rod 2, a containing groove 204 corresponding to the buffer spring 203 and the movable conducting rod 501 is formed in the buffer shell 301, and the vacuum tube pull rod 2 can move up and down along the movable conducting rod 501.
The buffer housing 301 is made of rubber material, and the buffer spring 203 is a tetrafluoro spring tube.
The concrete work is as follows: the circuit breaker switch is characterized in that the circuit breaker switch is connected with a transmission shaft of the circuit breaker switch through an existing energy storage operating mechanism which is configured outside, the operating mechanism drives the transmission shaft to rotate through energy release after energy storage, and a vacuum arc-extinguishing chamber is driven to act through a vacuum tube pull rod when the transmission shaft rotates, so that the circuit breaker switch is switched on and off, a butterfly-shaped buffer assembly is arranged to play a role in buffering when contacts of the vacuum arc-extinguishing chamber are combined, and the butterfly-shaped buffer assembly can assist the contacts to be quickly disconnected when the contacts are disconnected, so that the butterfly-shaped buffer assembly can play a good role in protecting the vacuum arc-extinguishing chamber. The upper end of the vacuum arc-extinguishing chamber is led out of a bus terminal through a copper foil flexible connecting wire, a switch outlet port is achieved, a three-station isolating switch is installed at the lower end of the vacuum arc-extinguishing chamber, a transmission shaft is driven to rotate by an externally configured known three-station operating mechanism special for the isolating switch, switching on and off of the isolating switch are achieved, three phases of the switch are independent phase sequences, a single-phase switch is fixed through an insulating fixed supporting plate, an environment-friendly insulating partition plate is adopted to isolate the phases, the interphase climbing distance of the switch is increased, the whole switch performance is prevented from being influenced by single-phase faults, air is used as a junction medium, the vacuum arc-extinguishing technology is adopted for arc extinction, insulation and arc extinction are replaced by special gas, the switch does not need to be installed in a sealed environment, and the post maintenance is convenient, and the use effect is good.
The invention is illustrated by way of example and not by way of limitation. Other variations or modifications of the above description will be apparent to those of ordinary skill in the art, and it is not necessary or exhaustive of all embodiments, and obvious variations or modifications are contemplated as falling within the scope of the invention.
Claims (3)
1. The utility model provides an air insulation circuit breaker isolation integral type switch, its characterized in that includes insulating fixed backup pad (6), the middle part of insulating fixed backup pad (6) is provided with three vacuum interrupter (5) side by side, be provided with busbar terminal (4) on moving conducting rod (501) of vacuum interrupter (5), moving conducting rod (501) are connected with vacuum tube pull rod (2) that are used for operating contact (502) of vacuum interrupter (5) to combine or break through butterfly buffer assembly (3) that can play the cushioning effect, vacuum tube pull rod (2) are connected with circuit breaker switch transmission shaft (1) that are used for driving its action, the lower part of insulating fixed backup pad (6) is provided with three isolator that corresponds with vacuum interrupter (5) side by side, isolator includes isolator contact (9) that are connected with wire pole (503) of vacuum interrupter (5) lower extreme, isolator (7) that correspond with isolator contact (9), isolator transmission shaft (8) that drive isolator contact (7) are moved, isolator contact (9) are connected with isolator contact (901) and are provided with insulating base (10) that contact (901) are connected with corresponding to make contact with wire pole (901);
Butterfly buffer module (3) are including buffer housing (301), the lower part of vacuum tube pull rod (2), the upper portion of moving conducting rod (501) stretches into buffer housing (301) inside, move conducting rod (501) upper end and be provided with piston groove (504), vacuum tube pull rod (2) lower part is provided with piston portion (201) that corresponds with piston groove (504), piston portion (201) tip is formed with lug (202), piston groove (504) tip is formed with baffle (505) that are used for blocking lug (202) that corresponds with piston portion (201), the upper portion of baffle (505) is provided with buffer spring (203) of cover outside vacuum tube pull rod (2), buffer housing (301) are fixed with vacuum tube pull rod (2), buffer housing (301) inside be provided with buffer spring (203), move accommodation groove (204) that conducting rod (501) correspond, buffer housing (301) can follow vacuum tube pull rod (2) and move up and down.
2. The isolating integrated switch of the air-insulated circuit breaker according to claim 1, wherein the isolating switch grounding contact (10) is mounted on an insulating fixed supporting plate (6), the upper end of the bus bar carrying column (901) passes through a through hole (1001) in the middle of the isolating switch grounding contact (10) to be hinged with the bottom of the isolating switch contact (9), and the switch outgoing line contact seat (11) is sleeved at the upper end of the bus bar carrying column (901) to be used for connecting the bus bar carrying column (901) and the isolating switch grounding contact (10).
3. An air-insulated switchgear isolation integrated switch according to claim 2, characterized in that the buffer housing (301) is made of rubber material, and the buffer spring (203) is a tetrafluoro spring tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010447007.3A CN111477495B (en) | 2020-05-25 | 2020-05-25 | Air insulation breaker isolation integrated switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010447007.3A CN111477495B (en) | 2020-05-25 | 2020-05-25 | Air insulation breaker isolation integrated switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111477495A CN111477495A (en) | 2020-07-31 |
| CN111477495B true CN111477495B (en) | 2024-09-03 |
Family
ID=71762680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010447007.3A Active CN111477495B (en) | 2020-05-25 | 2020-05-25 | Air insulation breaker isolation integrated switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111477495B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119518499B (en) * | 2024-11-15 | 2025-10-17 | 赫兹曼电力（广东）有限公司 | Switch cabinet |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211879293U (en) * | 2020-05-25 | 2020-11-06 | 浙江聚弘凯电气有限公司 | Isolation integrated switch of air insulation circuit breaker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101677177B (en) * | 2008-09-19 | 2011-09-07 | 沈阳昊诚电气股份有限公司 | Epoxy pouring type solid insulation switch with three-cabin |
| CN107800068B (en) * | 2017-11-28 | 2024-04-26 | 沈阳昊诚电气有限公司 | Environment-friendly gas-insulated switchgear |
-
2020
- 2020-05-25 CN CN202010447007.3A patent/CN111477495B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211879293U (en) * | 2020-05-25 | 2020-11-06 | 浙江聚弘凯电气有限公司 | Isolation integrated switch of air insulation circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111477495A (en) | 2020-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: No. 269, Xuexi South Road, Gaohong Town, Lin'an District, Hangzhou, Zhejiang 310000 Applicant after: Zhejiang Juhongkai Intelligent Electrical Co.,Ltd. Address before: 311399 No.135, xinxiqiao village, Jincheng Street, Lin'an District, Hangzhou City, Zhejiang Province Applicant before: ZHEJIANG JUHONKIA ELECTRIC CO.,LTD. Country or region before: China |
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| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |