CN220710192U - Circuit breaker switch - Google Patents

Circuit breaker switch Download PDF

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Publication number
CN220710192U
CN220710192U CN202322380650.0U CN202322380650U CN220710192U CN 220710192 U CN220710192 U CN 220710192U CN 202322380650 U CN202322380650 U CN 202322380650U CN 220710192 U CN220710192 U CN 220710192U
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CN
China
Prior art keywords
isolating
machine frame
copper bar
groups
grounding
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Application number
CN202322380650.0U
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Chinese (zh)
Inventor
徐敏敏
钟鸿峰
肖玉龙
陈利克
王勉
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Zhejiang Liange Electrical Technology Co ltd
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Zhejiang Liange Electrical Technology Co ltd
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Priority to CN202322380650.0U priority Critical patent/CN220710192U/en
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Abstract

The utility model relates to a circuit breaker switch, which comprises a machine frame, a main shaft, three groups of vacuum arc-extinguishing chamber assemblies, three groups of transmission cam assemblies and three groups of isolating switch assemblies, wherein each vacuum arc-extinguishing chamber assembly comprises a fixed plate, two clamping plates, a supporting plate, a vacuum arc-extinguishing chamber and an insulating pull rod, the vacuum arc-extinguishing chamber is provided with a copper bar flexible connection, two ends of the copper bar flexible connection extend out of the two clamping plates respectively, two ends of the copper bar flexible connection are respectively provided with an adjusting bolt, the adjusting bolts penetrate through the copper bar flexible connection and are connected to a side expansion sleeve, and the support is provided with an insulating partition plate separated between the clamping plates and a side plate of the machine frame. The utility model has the advantages of stable and reliable performance, good insulating performance, high assembly efficiency and adjustable inter-phase insulation distance.

Description

Circuit breaker switch
Technical Field
The utility model relates in particular to a circuit breaker switch.
Background
The ring main unit is a group of electric equipment for power transmission and distribution, is arranged in a metal or nonmetal insulation cabinet body or is made into an electric equipment for assembling the interval ring main power supply unit, and generally adopts sulfur hexafluoride gas, environment-friendly gas or epoxy resin as an insulation medium. Aiming at the rapidly-developed power industry, the adoption of environment-friendly gas as an insulating medium is an important trend of future development of the switch industry. The existing breaker switch used in the environment-friendly gas cabinet has the advantage of maintenance-free property. The switch adopts a normal pressure sealed box structure, has no threat of gas leakage, can effectively isolate pollution of external pollutants, dust and acid mist, ensures the cleanness and the service life of the running environments of the busbar, the circuit breaker, the isolation knife and the grounding knife, and realizes the purpose of maintenance-free, thereby greatly reducing the investment of operation and maintenance management of the distribution network. The interphase insulation interval of the existing breaker switch is not adjustable, when the novel circuit breaker switch is installed, the novel circuit breaker switch cannot be adapted to environment-friendly cabinets with various specifications, the application range is narrow, the structural design of the existing breaker switch is complex, the size is large, the modularized structural design cannot be integrated, the modularized assembly cannot be realized, and the assembly efficiency is low.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the circuit breaker switch with stable and reliable performance, good insulating performance, high assembly efficiency and adjustable interphase insulation distance.
In order to achieve the above purpose, the utility model adopts a circuit breaker switch, which comprises a machine frame, a main shaft rotationally arranged on the machine frame, three groups of vacuum arc-extinguishing chamber assemblies respectively arranged on the machine frame, three groups of transmission cam assemblies which are arranged on the main shaft in a linkage way and are used for driving the three groups of vacuum arc-extinguishing chamber assemblies to execute opening and closing actions, and three groups of isolating switch assemblies arranged on the machine frame, wherein the vacuum arc-extinguishing chamber assemblies comprise a fixed plate arranged on the machine frame, two clamping plates arranged between the fixed plate and a bracket of the machine frame, a supporting plate arranged between the two clamping plates, a vacuum arc-extinguishing chamber arranged between the fixed plate and the supporting plate, and an insulating pull rod connected between the vacuum arc-extinguishing chamber and the transmission cam assemblies, copper bar soft connection is arranged on the vacuum arc-extinguishing chamber, two ends of the copper bar soft connection are respectively extended outside the two clamping plates, adjusting bolts are respectively arranged on two ends of the copper bar soft connection, the adjusting bolts penetrate through the copper bar soft connection and are connected on a side expanding sleeve, and an insulating partition plate which is arranged between the clamping plates and a side plate of the mechanism frame.
The beneficial effects of the structure are as follows: the vacuum interrupter subassembly adopts modularized structural design to be convenient for the assembly of vacuum interrupter subassembly and framework, assembly efficiency is higher, and sets up on the copper bar flexible coupling at the switching copper bar, through rotating the switching copper bar, thereby can realize that the insulating interval between the three side expansion tubes is adjusted, it is more convenient to adjust, and the looped netowrk cabinet of multiple specification of adaptable, application scope is wider. Therefore, the circuit breaker switch has the advantages of stable and reliable performance, good insulating performance, high assembly efficiency and adjustable interphase insulation distance.
Particularly, an inserting piece part is arranged at one end of the insulating partition board, an inserting hole matched with the inserting piece part is arranged on the bracket, and the inserting piece part is inserted into the inserting hole and is matched with the bracket in a clamping way. The insulating partition board is connected with the support in a clamping fit mode, so that the insulating partition board and the support are convenient to assemble, and the assembly is more convenient.
Particularly, the isolating switch assembly comprises an isolating rotating shaft, three groups of crank arm groups, isolating fixing plates, three positioning blocks, three isolating cutters and three isolating fixed contacts, wherein the isolating rotating shaft is arranged on a machine frame in a rotating mode, the three groups of crank arm groups are in linkage fit with the isolating rotating shaft, the isolating fixing plates are arranged on the machine frame, the three positioning blocks are arranged on the isolating fixing plates respectively, the three isolating cutters are arranged on the three positioning blocks and are in linkage fit with the three groups of crank arm groups respectively, the three isolating fixed contacts are arranged on the fixing plates of the three groups of vacuum arc-extinguishing chamber assemblies respectively and are matched with the three isolating cutters, the three isolating fixed contacts are connected with the three vacuum arc-extinguishing chambers respectively, and four supporting rods are connected between the fixing plates and the isolating fixing plates. The isolating switch component adopts a modularized structural design, so that the assembly of the isolating switch component and the machine frame is convenient, and the assembly efficiency is higher.
Specifically, the grounding contact assembly is arranged at one side of the machine frame corresponding to the isolating switch assembly, the grounding contact assembly comprises a grounding support arranged on the machine frame, a grounding copper bar arranged on the grounding support, and three grounding contacts respectively arranged on the grounding copper bar, the grounding support is respectively provided with an insulating cover covering the grounding contact and the isolating knife, and an insulating isolation channel matched with the motion trail of the isolating knife is arranged in the insulating cover. The grounding contact assembly adopts a modularized structural design, so that the modularized assembly of the grounding contact assembly and the mechanical frame can be realized, the assembly efficiency is higher, and the insulation cover can increase the inter-phase insulation distance between the three contact contacts, thereby being beneficial to improving the insulation performance of the circuit breaker switch.
Particularly, the other end of the isolation fixing plate, which corresponds to the insulating partition plate, is provided with a positioning hole, the other end of the insulating partition plate is provided with a positioning sheet matched with the positioning hole, and the positioning sheet is inserted into the positioning hole to form clamping fit between the isolation fixing plate and the insulating partition plate. The insulating partition plate and the isolation fixing plate are assembled in a clamping fit mode, so that the insulating partition plate and the isolation fixing plate are convenient to assemble, and the assembly efficiency is higher.
Drawings
Fig. 1 is a perspective view of an embodiment of the present utility model.
Fig. 2 is a cross-sectional view of an embodiment of the present utility model.
Fig. 3 is an exploded view of an embodiment of the present utility model.
Detailed Description
As shown in fig. 1 to 3, an embodiment of the present utility model is a circuit breaker switch, including a machine frame 10, a main shaft 11 rotatably disposed on the machine frame 10, three sets of vacuum interrupter assemblies 20 respectively disposed on the machine frame 10, three sets of transmission cam assemblies 12 linked and disposed on the main shaft 11 and used for driving the three sets of vacuum interrupter assemblies 20 to perform opening and closing actions, and three sets of disconnecting switch assemblies 30 disposed on the machine frame 10, wherein the vacuum interrupter assemblies 20 include a fixed plate 21 disposed on the machine frame 10, two clamping plates 22 disposed between the fixed plate 21 and a bracket 101 of the machine frame 10, a supporting plate 23 disposed between the two clamping plates 22, a vacuum interrupter 24 disposed between the fixed plate 21 and the supporting plate 23, and an insulating pull rod 25 connected between the vacuum interrupter 24 and the transmission cam assemblies 12, wherein copper bar flexible connections 26 are disposed on the vacuum interrupter 24, two ends of the copper bar flexible connections 26 extend outside the two clamping plates 22 respectively, and two ends of the copper bar flexible connections 26 are respectively provided with adjusting bolts 27, the adjusting bolts 27 penetrate the copper bar flexible connections 26 and are disposed on the side plates 28 and the side plates 102 are disposed on the bracket 102. The insulating barrier 29 one end on be provided with inserted sheet portion 291, support 101 on be provided with inserted sheet portion 291 matched with jack 103, inserted sheet portion 291 alternate in jack 103, and constitute insulating barrier 29 and support 101's joint cooperation. The insulating partition board is connected with the support in a clamping fit mode, so that the insulating partition board and the support are convenient to assemble, and the assembly is more convenient.
As shown in fig. 2 and 3, the isolating switch assembly 30 includes an isolating rotating shaft 31 rotatably disposed on the machine frame 10, three sets of crank arm groups 32 in linkage with the isolating rotating shaft 31, an isolating fixing plate 33 disposed on the machine frame 10, three positioning blocks 34 respectively disposed on the isolating fixing plate 33, three isolating blades 35 respectively rotatably disposed on the three positioning blocks 34 and in linkage with the three sets of crank arm groups 32, and three isolating fixed contacts 36 respectively disposed on the fixing plates 21 of the three sets of vacuum arc extinguishing chamber assemblies 20 and in cooperation with the three isolating blades 35, wherein the three isolating fixed contacts 36 are respectively connected with the three vacuum arc extinguishing chambers 24, and four supporting rods 37 are connected between the fixing plates 21 and the isolating fixing plates 33. The isolating switch component adopts a modularized structural design, so that the assembly of the isolating switch component and the machine frame is convenient, and the assembly efficiency is higher. The grounding contact assembly 40 is arranged on the machine frame 10 at one side corresponding to the isolating switch assembly 30, the grounding contact assembly 40 comprises a grounding support 41 arranged on the machine frame 10, a grounding copper bar 42 arranged on the grounding support 41, and three grounding contacts 43 respectively arranged on the grounding copper bar 42, the grounding support 41 is respectively provided with an insulating cover 44 covering the grounding contacts 43 and the isolating blades 35, and an insulating isolation channel 441 matched with the motion trail of the isolating blades 35 is arranged in the insulating cover 44. The grounding contact assembly adopts a modularized structural design, so that the modularized assembly of the grounding contact assembly and the mechanical frame can be realized, the assembly efficiency is higher, and the insulation cover can increase the inter-phase insulation distance between the three contact contacts, thereby being beneficial to improving the insulation performance of the circuit breaker switch. The other end of the isolation fixing plate 33 corresponding to the insulation baffle 29 is provided with a positioning hole 331, the other end of the insulation baffle 29 is provided with a positioning sheet 292 matched with the positioning hole 331, the positioning sheet 292 is inserted into the positioning hole 331, and the isolation fixing plate 33 is matched with the insulation baffle 29 in a clamping way. The insulating partition plate and the isolation fixing plate are assembled in a clamping fit mode, so that the insulating partition plate and the isolation fixing plate are convenient to assemble, and the assembly efficiency is higher.
The vacuum interrupter subassembly adopts modularized structural design to be convenient for the assembly of vacuum interrupter subassembly and framework, assembly efficiency is higher, and sets up on the copper bar flexible coupling at the switching copper bar, through rotating the switching copper bar, thereby can realize that the insulating interval between the three side expansion tubes is adjusted, it is more convenient to adjust, and the looped netowrk cabinet of multiple specification of adaptable, application scope is wider. Therefore, the circuit breaker switch has the advantages of stable and reliable performance, good insulating performance, high assembly efficiency and adjustable interphase insulation distance.

Claims (5)

1. A circuit breaker switch, characterized by: including the machine frame, rotate the main shaft that sets up on the machine frame, set up three sets of vacuum interrupter subassembly on the machine frame respectively, the linkage sets up on the main shaft and is used for driving three sets of vacuum interrupter subassembly and carries out three sets of transmission cam subassembly of divide-shut brake action, sets up three sets of isolator subassemblies on the machine frame, vacuum interrupter subassembly including setting up fixed plate on the machine frame, set up two splint between the support of fixed plate and machine frame, set up the backup pad between two splint, set up the vacuum interrupter between fixed plate and backup pad, connect the insulating pull rod between vacuum interrupter and transmission cam subassembly, vacuum interrupter on be provided with copper bar flexible coupling, copper bar flexible coupling both ends extend respectively outside two splint, and be provided with adjusting bolt on the copper bar flexible coupling both ends respectively, adjusting bolt passes copper bar flexible coupling and connect on the side expansion shell pipe, the support on be provided with the insulating barrier of separating between splint and the curb plate of machine frame.
2. The circuit breaker switch of claim 1 wherein: an inserting piece part is arranged at one end of the insulating partition board, an inserting hole matched with the inserting piece part is arranged on the support, and the inserting piece part is inserted in the inserting hole and is matched with the support in a clamping way.
3. A circuit breaker switch according to claim 1 or 2, characterized in that: the isolating switch assembly comprises an isolating rotating shaft, three groups of crank arm groups, isolating fixing plates, three positioning blocks, three isolating cutters, three isolating static contacts and four supporting rods, wherein the isolating rotating shaft is arranged on a machine frame in a rotating mode, the three groups of crank arm groups are in linkage fit with the isolating rotating shaft, the isolating fixing plates are arranged on the machine frame, the three positioning blocks are arranged on the isolating fixing plates respectively, the three isolating cutters are arranged on the three positioning blocks and are in linkage fit with the three groups of crank arm groups respectively, the three isolating static contacts are arranged on the fixing plates of the three groups of vacuum arc-extinguishing chamber assemblies respectively and are matched with the three isolating cutters, the three isolating static contacts are connected with the three vacuum arc-extinguishing chambers respectively, and the four supporting rods are connected between the fixing plates and the isolating fixing plates.
4. A circuit breaker switch according to claim 3, wherein: the grounding contact assembly is arranged at one side of the machine frame corresponding to the isolating switch assembly and comprises a grounding support arranged on the machine frame, a grounding copper bar arranged on the grounding support and three grounding contacts respectively arranged on the grounding copper bar, wherein insulating covers covering the grounding contacts and the isolating knives are respectively arranged on the grounding support, and insulating isolation channels matched with the motion tracks of the isolating knives are arranged in the insulating covers.
5. A circuit breaker switch according to claim 3, wherein: the insulation fixing plate is provided with a locating hole corresponding to the other end of the insulation partition plate, the other end of the insulation partition plate is provided with a locating piece matched with the locating hole, and the locating piece is inserted into the locating hole to form clamping fit between the insulation fixing plate and the insulation partition plate.
CN202322380650.0U 2023-09-02 2023-09-02 Circuit breaker switch Active CN220710192U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322380650.0U CN220710192U (en) 2023-09-02 2023-09-02 Circuit breaker switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322380650.0U CN220710192U (en) 2023-09-02 2023-09-02 Circuit breaker switch

Publications (1)

Publication Number Publication Date
CN220710192U true CN220710192U (en) 2024-04-02

Family

ID=90448186

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322380650.0U Active CN220710192U (en) 2023-09-02 2023-09-02 Circuit breaker switch

Country Status (1)

Country Link
CN (1) CN220710192U (en)

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