CN216562913U - Vacuum circuit breaker with isolation function - Google Patents

Abstract

The utility model relates to a vacuum circuit breaker with an isolation function, which comprises a panel, an isolation switch module and a circuit breaker module, wherein the isolation switch module comprises an isolation mechanism frame, an isolation rotating shaft, a plurality of moving contacts and a plurality of static contacts, the circuit breaker module comprises a mechanism frame, a plurality of vacuum arc-extinguishing chambers, a rotating shaft and a plurality of transmission cams, transmission rods are respectively arranged on movable conductive rods at one ends of the plurality of vacuum arc-extinguishing chambers, the transmission rods are inserted into guide grooves of the transmission cams and form linkage matching of the movable conductive rods and the transmission cams, a conductive copper bar is respectively arranged at the other ends of the plurality of vacuum arc-extinguishing chambers, and the plurality of moving contacts and the plurality of conductive copper bars are respectively connected in a flexible way. The utility model has the advantages of simple structure, compact structure, stable and reliable performance and convenient assembly.

Description

Vacuum circuit breaker with isolation function

Technical Field

The utility model relates to a vacuum circuit breaker, in particular to a vacuum circuit breaker with an isolation function.

Background

The vacuum circuit breaker is named because arc extinguishing media and insulating media of contact gaps after arc extinguishing are high vacuum; the arc extinguishing device has the advantages of small volume, light weight, suitability for frequent operation and no need of maintenance for arc extinguishing, and is popularized to be applied to a power distribution network. The vacuum circuit breaker is an indoor power distribution device in a 3-10 kV and 50Hz three-phase alternating-current system, can be used for protecting and controlling electrical equipment in industrial and mining enterprises, power plants and transformer substations, is particularly suitable for use places requiring no oil, less maintenance and frequent operation, and can be arranged in a middle cabinet, a double-layer cabinet and a fixed cabinet to be used for controlling and protecting high-voltage electrical equipment. The existing vacuum circuit breaker is unreasonable in structural design, cannot be assembled in an integrated modular manner, and is convenient and fast to assemble. Therefore, the vacuum circuit breaker has the defects of complex structure, unreliable performance and inconvenient assembly.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides the vacuum circuit breaker with the isolation function, which has the advantages of simple structure, compact structure, stable and reliable performance and convenient and fast assembly.

In order to achieve the above object, the present invention provides a vacuum circuit breaker with an isolation function, comprising a panel, an isolation switch module arranged on the panel, and a circuit breaker module arranged on the panel and connected with the isolation switch module, wherein the isolation switch module comprises an isolation mechanism frame arranged on the panel, an isolation rotating shaft rotatably arranged on the isolation mechanism frame, a plurality of moving contacts arranged on the isolation rotating shaft, and a plurality of static contacts arranged on the isolation mechanism frame and matched with the plurality of moving contacts, the circuit breaker module comprises a mechanism frame arranged on the panel, a plurality of vacuum arc-extinguishing chambers arranged on the mechanism frame, a rotating shaft rotatably arranged on the mechanism frame, and a plurality of transmission cams arranged on the rotating shaft in a linkage manner, the dynamic and conductive rods at one ends of the plurality of vacuum arc-extinguishing chambers are respectively provided with a transmission rod, the transmission rods are inserted into guide grooves of the transmission cams, and the movable conductive rod is in linkage fit with the transmission cam, the other ends of the plurality of vacuum arc-extinguishing chambers are respectively provided with a conductive copper bar, and the plurality of movable contacts and the plurality of conductive copper bars are respectively connected with a flexible connection.

The beneficial effect of above-mentioned structure is: with isolator module, circuit breaker module respectively integrated module ization assembly on the panel, thereby can realize this vacuum circuit breaker's modular assembly, isolator module, circuit breaker module adopt split type structural layout from top to bottom on the panel, this structural design is simple, the cost is lower, and switch on through the flexible coupling between isolator module and the circuit breaker module, be convenient for the assembly of isolator module and circuit breaker module, thereby this vacuum circuit breaker has simple structure, compact structure, the stable performance is reliable, the convenient advantage of assembly.

Particularly, the framework include the fixed plate that sets up on the panel, the symmetry sets up two curb plates on the fixed plate, correspond a plurality of vacuum interrupter department and set up a plurality of connecting plates between two curb plates respectively, a plurality of vacuum interrupter on be provided with the backup pad respectively, the both ends of backup pad connect respectively on two curb plates. Vacuum interrupter and backup pad integrated module ization to the assembly of vacuum interrupter and framework of being convenient for, the assembly is more convenient, is favorable to improving this vacuum circuit breaker's assembly efficiency.

Particularly, the two side plates are respectively provided with a clamping hole corresponding to the support plate, two ends of the support plate are respectively provided with a clamping block, and the clamping blocks are clamped in the clamping holes and form clamping matching of the support plate and the two side plates. The backup pad adopts the joint cooperation mode with two curb plates to be connected to the assembly of backup pad and two curb plates of being convenient for, assembly efficiency is higher.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is an internal structural view of the embodiment of the present invention.

Detailed Description

As shown in fig. 1 and 2, an embodiment of the present invention is a vacuum circuit breaker with an isolation function, including a panel 10, an isolation switch module 20 disposed on the panel 10, and a circuit breaker module 30 disposed on the panel 10 and connected to the isolation switch module 20, where the isolation switch module 20 includes an isolation framework 21 disposed on the panel 10, an isolation rotating shaft 22 rotatably disposed on the isolation framework 21, a plurality of moving contacts 23 disposed on the isolation rotating shaft 22, and a plurality of static contacts 24 disposed on the isolation framework 21 and matched with the plurality of moving contacts 23, the circuit breaker module 30 includes a framework 31 disposed on the panel 10, a plurality of vacuum arc-extinguishing chambers 32 disposed on the framework 31, a rotating shaft 33 rotatably disposed on the framework 31, and a plurality of transmission cams 34 linked to the rotating shaft 33, a transmission rod 322 is disposed on each of a moving conductive rod 321 at one end of the plurality of vacuum arc-extinguishing chambers 32, the driving rod 322 is inserted into the guiding groove 341 of the driving cam 34, and forms a linkage fit of the movable conductive rod 321 and the driving cam 34, the other ends of the plurality of vacuum arc-extinguishing chambers 32 are respectively provided with a conductive copper bar 35, and the plurality of movable contacts 23 and the plurality of conductive copper bars 35 are respectively connected with a flexible connection 36. The mechanism frame 31 includes a fixing plate 311 disposed on the panel 10, two side plates 312 symmetrically disposed on the fixing plate 311, and a plurality of connecting plates 313 respectively disposed between the two side plates 312 corresponding to the plurality of vacuum arc-extinguishing chambers 32, the plurality of vacuum arc-extinguishing chambers 32 are respectively provided with a supporting plate 314, and two ends of the supporting plate 314 are respectively connected to the two side plates 312. Vacuum interrupter and backup pad integrated module ization to the assembly of vacuum interrupter and framework of being convenient for, the assembly is more convenient, is favorable to improving this vacuum circuit breaker's assembly efficiency. The two side plates 312 are respectively provided with a clamping hole 3121 corresponding to the supporting plate 314, two ends of the supporting plate 314 are respectively provided with a clamping block 3141, and the clamping block 3141 is clamped in the clamping hole 3121 to form clamping fit of the supporting plate 314 and the two side plates 312. The backup pad adopts the joint cooperation mode with two curb plates to be connected to the assembly of backup pad and two curb plates of being convenient for, assembly efficiency is higher.

With isolator module, circuit breaker module respectively integrated module ization assembly on the panel, thereby can realize this vacuum circuit breaker's modular assembly, isolator module, circuit breaker module adopt split type structural layout from top to bottom on the panel, this structural design is simple, the cost is lower, and switch on through the flexible coupling between isolator module and the circuit breaker module, be convenient for the assembly of isolator module and circuit breaker module, thereby this vacuum circuit breaker has simple structure, compact structure, the stable performance is reliable, the convenient advantage of assembly.

Claims (3)

1. The utility model provides a take vacuum circuit breaker of isolation function which characterized in that: the circuit breaker module comprises a panel, an isolating switch module arranged on the panel, and a circuit breaker module arranged on the panel and connected with the isolating switch module, wherein the isolating switch module comprises an isolating mechanism frame arranged on the panel, an isolating rotating shaft rotationally arranged on the isolating mechanism frame, a plurality of moving contacts arranged on the isolating rotating shaft, and a plurality of static contacts arranged on the isolating mechanism frame and matched with the moving contacts, the circuit breaker module comprises a mechanism frame arranged on the panel, a plurality of vacuum arc-extinguishing chambers arranged on the mechanism frame, a rotating shaft rotationally arranged on the mechanism frame, and a plurality of transmission cams arranged on the rotating shaft in a linkage manner, the movable conducting rods at one ends of the plurality of vacuum arc-extinguishing chambers are respectively provided with a transmission rod, the transmission rods are inserted into guide grooves of the transmission cams and form linkage matching of the movable conducting rods and the transmission cams, and the other ends of the plurality of vacuum arc-extinguishing chambers are respectively provided with a conductive copper bar, and the plurality of moving contacts and the plurality of conductive copper bars are respectively connected with a flexible connection.

2. The vacuum circuit breaker with an isolation function according to claim 1, wherein: the mechanism frame including set up fixed plate on the panel, the symmetry set up two curb plates on the fixed plate, correspond a plurality of vacuum interrupter departments and set up a plurality of connecting plates between two curb plates respectively, a plurality of vacuum interrupter on be provided with the backup pad respectively, the both ends of backup pad connect respectively on two curb plates.

3. The vacuum circuit breaker with an isolation function according to claim 2, wherein: the two side plates are respectively provided with a clamping hole corresponding to the supporting plate, the two ends of the supporting plate are respectively provided with a clamping block, and the clamping blocks are clamped in the clamping holes and form clamping matching of the supporting plate and the two side plates.

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