CN212725134U - Solid-sealed circuit breaker of power distribution cabinet and circuit breaker assembly with same - Google Patents

Abstract

The utility model particularly discloses a solid formula circuit breaker that seals of switch board, including the circuit breaker body, the circuit breaker body includes: a box body having a box door; the isolating switch module is fixed on the inner wall of the box body; the grounding switch module is fixed on the inner wall of the box body and connected with the isolating switch module through a first interlocking piece, and the grounding switch module is also connected with the box door through a third interlocking piece; the vacuum switch control assembly comprises a switching-off module and a switching-on module, wherein the switching-off module and the switching-on module are fixed in the box body and are respectively connected with the isolating switch module and the grounding switch module through second interlocking pieces. The utility model has simple and reliable structure, high safety performance, more convenient and flexible use and can realize different power supply schemes; the combined structure has small size, light weight and more environmental protection.

Description

Solid-sealed circuit breaker of power distribution cabinet and circuit breaker assembly with same

Technical Field

The utility model relates to a switch board accessory technical field, concretely relates to solid formula circuit breaker of switch board and circuit breaker assembly who has it.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The interlocking member is a mechanical connecting mechanism between several switching electric appliances or components, which is designed to ensure that the switching electric appliances or components thereof act in a specified order or prevent misoperation. Vacuum switches (including vacuum circuit breakers, vacuum load switches, vacuum contactors, etc.) are electrical appliances used for switching on and off operations of electrical equipment under normal electricity utilization conditions and power-off operations of power supply lines under fault conditions such as overcurrent and short circuit. Disconnecting and grounding switches are used in conjunction with vacuum switches that are capable of automatically disconnecting the associated circuit/load in the event of a loaded operation and circuit failure in a typical power switching system. That is to say, the normal power transmission of the power supply line/circuit, the protection action during power failure and fault are realized by the vacuum switch, and the safety protection of personnel is realized by the isolating switch and the grounding switch.

However, most of the existing circuit breakers have overlarge structure volume, low operation flexibility and reliability and are easy to cause safety accidents.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's structure volume too big, the operation flexibility is not strong, and the reliability is not strong, appears the not enough of incident easily, provides the solid formula circuit breaker of switch board. The solid-sealed circuit breaker of the power distribution cabinet is simple and reliable in structure, high in safety performance and more convenient and flexible to use.

The above problems to be solved by the present invention are achieved by the following technical solutions:

the utility model provides a solid formula circuit breaker that seals of switch board, includes the circuit breaker body, its characterized in that, the circuit breaker body includes: a box body having a box door; the isolating switch module is fixed on the inner wall of the box body; the grounding switch module is fixed on the inner wall of the box body and connected with the isolating switch module through a first interlocking piece, and the grounding switch module is also connected with the box door through a third interlocking piece; the vacuum switch control assembly comprises a switching-off module and a switching-on module, wherein the switching-off module and the switching-on module are fixed in the box body and are respectively connected with the isolating switch module and the grounding switch module through second interlocking pieces.

Preferably, the isolating switch module comprises a third isolating plate, a first control cam and an isolating knob, the third isolating plate is fixed on the inner wall of the box body, the first control cam is fixed on the third isolating plate and can be in contact connection with the first interlocking piece, and the isolating knob is fixed on the box door and is in transmission connection with the first control cam. The scheme can better and independently operate the isolating switch through the mutual matching of all parts of the isolating switch module, and reduces the influence of other parts on the isolating switch.

Preferably, the ground switch module comprises a fourth isolation plate, a second control cam and a ground switch knob, the fourth isolation plate is fixed on the inner wall of the box body, the second control cam is fixed on the fourth isolation plate and can be in contact connection with the first interlocking piece, and the ground switch knob is fixed on the box door and is in transmission connection with the second control cam. The grounding switch module has the advantages that the grounding switch module can be better and independently operated through the mutual matching of all parts of the grounding switch module, and the influence of other parts on the grounding switch module can be reduced.

Preferably, the opening module comprises a first isolation plate and an opening button, the first isolation plate is fixed on the inner wall of the box body, and the opening button is fixed on the first isolation plate, extends to the box door and is connected with the second interlocking piece; the closing module comprises a closing button and a second isolation plate, the second isolation plate is fixed on the inner wall of the box body, and the closing button is fixed on the second isolation plate, extends to the box door and is connected with the second interlocking piece. This scheme can combine isolator, earthing switch and vacuum switch's operating device in an organic whole through each part of separating brake module and combined floodgate module and the cooperation of other parts of circuit breaker, and the three function closes three to be one, and modular structure uses convenient more in a flexible way, can realize different power supply schemes.

Preferably, the circuit breaker body further comprises an energy storage module, and the energy storage module is located inside the box body between the opening module and the closing module; the energy storage module comprises an energy storage block, an energy storage connecting rod, a driving rotating rod and an energy storage gear, the driving rotating rod is connected to the inside of the box body through a fifth isolating plate and is in transmission connection with the energy storage gear, and the energy storage gear is connected with the energy storage block through the energy storage connecting rod. This scheme can meet unusual power down situation at the in-process of carrying out the combined floodgate action through energy storage module, effectively protects circuit breaker and block terminal.

Preferably, the vacuum switch control assembly further comprises a buffer module, the buffer module comprises a splice plate, a buffer rod and a buffer component, the buffer component is fixed at the inner bottom of the box body and is connected with the splice plate through the buffer rod, and the splice plate is connected with the first isolation plate and the second isolation plate. This scheme can increase vacuum switch control assembly support performance through mutually supporting of each part of buffer module, and it is too concentrated to reduce stress, improves the security performance.

Preferably, an auxiliary control panel is arranged on the surface of the box door.

Preferably, a circuit breaker subassembly includes the solid formula circuit breaker that seals according to foretell switch board, the circuit breaker body chooses for use three to all fix on the mounting panel.

Has the advantages that: adopt the utility model the structure after, because the structure is equipped with box and chamber door and isolator module, the earthing switch module, the separating brake module and the combined floodgate module of vacuum switch control assembly, with isolator, earthing switch and vacuum switch's operating device combines in an organic whole, three functions close three and are one, modular structure, it is more convenient nimble to use, can realize different power supply schemes, interlocking device between three kinds of switches puts in same operating device case, modular structure, small in size, satisfy the standard requirement of power supply completely, coproduction, installation and debugging are very convenient, and then obtain simple structure reliably, the security performance is high, use the solid formula circuit breaker of convenient nimble switch board more.

Drawings

Fig. 1 is the main structure diagram of a solid-sealed circuit breaker of a power distribution cabinet.

Fig. 2 is a structure diagram of a solid-sealed circuit breaker of a power distribution cabinet.

Fig. 3 is a structure diagram of a solid-sealed circuit breaker of a power distribution cabinet and a circuit breaker assembly with the same.

FIGS. 1 to 3: 1-a box body; 2-a box door; 3-an isolating switch module; 4-a grounding switch module; 6-opening the brake module; 7-a closing module; 8-a first interlock; 9-a second interlock; 10-a first separator plate; 11-a switch-off button; 12-a closing button; 13-a second separator plate; 14-a third separator plate; 15-a first control cam; 16-isolating knob; 17-a fourth separator plate; 18-a second control cam; 19-a ground switch knob; 20-a third interlocking member; 21-an energy storage module; 22-an energy storage block; 23-an energy storage connecting rod; 24-driving the rotating rod; 25-an energy storage gear; 27-a splice plate; 28-a buffer rod; 29-a cushioning component; 30-a buffer module; 31-a circuit breaker body; 32-a mounting plate; 33-auxiliary control panel.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific examples, which are not intended to limit the invention in any manner.

Example 1:

as shown in fig. 1-2, the solid-sealed circuit breaker of a power distribution cabinet includes a circuit breaker body 31, the circuit breaker body 31 includes: the box body 1 is hinged with a box door 2; the isolation switch module 3 is fixed on the inner wall of the box body 1; the grounding switch module 4 is fixed on the inner wall of the box body 1 and is connected with the isolating switch module 3 through a first interlocking piece 8, and the grounding switch module 4 is also connected with the box door 2 through a third interlocking piece 20; the vacuum switch control assembly comprises a switching-off module 6 and a switching-on module 7, wherein the switching-off module 6 and the switching-on module 7 are fixed in the box body 1 and are respectively connected with the isolating switch module 3 and the grounding switch module 4 through a second interlocking piece 9.

Example 2:

as shown in fig. 1-2, the sealed circuit breaker of a power distribution cabinet includes all the technical features of embodiment 1, where the isolating switch module 3 includes a third isolating plate 14, a first control cam 15 and an isolating knob 16, the third isolating plate 14 is fixed on an inner wall of the box body 1, the first control cam 15 is fixed on the third isolating plate 14 and can be in contact connection with the first interlocking member 8, and the isolating knob 16 is fixed on the box door 2 and is in transmission connection with the first control cam 15; the earthing switch module 4 comprises a fourth isolation plate 17, a second control cam 18 and an earthing switch knob 19, wherein the fourth isolation plate 17 is fixed on the inner wall of the box body 1, the second control cam 18 is fixed on the fourth isolation plate 17 and can be in contact connection with the first interlocking piece 8, and the earthing switch knob 19 is fixed on the box door 2 and is in transmission connection with the second control cam 18; the opening module 6 comprises a first isolation plate 10 and an opening button 11, the first isolation plate 10 is fixed on the inner wall of the box body 1, and the opening button 11 is fixed on the first isolation plate 10, extends to the box door 2 and is connected with the second interlocking piece 9; the closing module 7 comprises a closing button 12 and a second isolation plate 13, the second isolation plate 13 is fixed on the inner wall of the box body 1, and the closing button 12 is fixed on the second isolation plate 13, extends to the box door 2 and is connected with the second interlocking piece 9.

Example 3:

the solid-sealed circuit breaker of the power distribution cabinet shown in fig. 1-2 includes all the technical features of embodiment 1 or 2, the circuit breaker body 31 further includes an energy storage module 31, and the energy storage module 31 is located inside the box body 1 between the opening module 6 and the closing module 7; the energy storage module 31 comprises an energy storage block 22, an energy storage connecting rod 23, a driving rotating rod 24 and an energy storage gear 25, the driving rotating rod 24 is connected to the inside of the box body 1 through a fifth isolation plate and is in transmission connection with the energy storage gear 25, and the energy storage gear 25 is connected with the energy storage block 22 through the energy storage connecting rod 23; the vacuum switch control assembly further comprises a buffer module 30, the buffer module 30 comprises a splice plate 27, a buffer rod 28 and a buffer part 29, the buffer part 29 is fixed at the inner bottom of the box body 1 and is connected with the splice plate 27 through the buffer rod 28, and the splice plate 27 is connected with the first isolation plate 10 and the second isolation plate 13; the surface of chamber door 2 is equipped with auxiliary control panel 33, auxiliary control panel 33 includes energy storage pilot lamp, deciliter pilot lamp, manual energy storage pole, counter etc..

Example 4:

the circuit breaker assembly of a power distribution cabinet as shown in fig. 1-3 includes all the technical features of embodiment 1 or 2 or 3, including a mounting plate 32 and three circuit breaker bodies 31, wherein the circuit breaker bodies 31 are all fixed on the mounting plate 32.

The using method comprises the following steps: during power transmission operation: firstly, closing a switch box door, triggering an earthing switch and a third interlocking piece of a switch box door to act, releasing the operation locking of the earthing switch, rotating an earthing switch operation module to a brake separating position, simultaneously rotating an earthing switch control cam, operating an earthing switch to the brake separating position, then downwards shifting an isolating switch and an earthing switch operation first interlocking piece to an operation isolating switch operation position, rotating an isolating switch operation module to a brake closing position, simultaneously releasing the locking of a vacuum switch, an isolating switch and an earthing switch operation second interlocking piece, closing a vacuum switch through a manual button or electric control operation, and completing power transmission;

during power failure operation: the vacuum switch is operated to open a brake by a manual button or electric control, meanwhile, the second interlocking piece is operated to unlock the vacuum switch, the isolating switch and the grounding switch, the isolating switch operating module is rotated to an opening position, the first interlocking piece operated by the isolating switch and the grounding switch can be upwards shifted to an operating position of the grounding switch after the grounding switch is operated to the opening position, the grounding switch operating module is rotated to a closing position, at the moment, the third interlocking piece of the grounding switch and the switch cabinet door acts to unlock the switch cabinet door, the switch cabinet door can be opened, and the power failure is finished;

when the disconnecting switch is in a switching-off state, the cylinders on the disconnecting switch cam press the disconnecting switch and the circuit breaker interlocking plate downwards and also press the cylinders on the interlocking sliding plate on the circuit breaker downwards, so that the interlocking sliding plate is driven to slide downwards and stop behind a switching-on button of the circuit breaker, the switching-on button of the circuit breaker cannot be pressed inwards, and the circuit breaker cannot be switched on;

when the disconnecting switch is in a closing state, the cylinder on the disconnecting switch cam moves upwards, the interlocking sliding plate slides upwards under the action of the extension spring, meanwhile, the disconnecting switch and the circuit breaker interlocking plate are driven to slide upwards to the highest position, the circuit breaker is separated from a closing button of the circuit breaker, the closing button of the circuit breaker can be pressed, and the circuit breaker can be closed.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings and the terms "first", "second", only for the convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (9)

1. The utility model provides a solid formula circuit breaker that seals of switch board, includes the circuit breaker body, its characterized in that, the circuit breaker body includes:

a box body having a box door;

the isolating switch module is fixed on the inner wall of the box body;

the grounding switch module is fixed on the inner wall of the box body and connected with the isolating switch module through a first interlocking piece, and the grounding switch module is also connected with the box door through a third interlocking piece;

the vacuum switch control assembly comprises a switching-off module and a switching-on module, wherein the switching-off module and the switching-on module are fixed in the box body and are respectively connected with the isolating switch module and the grounding switch module through second interlocking pieces.

2. The solid-sealed circuit breaker of the power distribution cabinet according to claim 1, wherein the isolation switch module comprises a third isolation plate, a first control cam and an isolation knob, the third isolation plate is fixed on the inner wall of the cabinet body, the first control cam is fixed on the third isolation plate and can be in contact connection with the first interlocking member, and the isolation knob is fixed on the cabinet door and is in transmission connection with the first control cam.

3. The solid-sealed circuit breaker of the power distribution cabinet according to claim 1, wherein the ground switch module comprises a fourth isolation plate, a second control cam and a ground switch knob, the fourth isolation plate is fixed on the inner wall of the cabinet body, the second control cam is fixed on the fourth isolation plate and can be in contact connection with the first interlocking member, and the ground switch knob is fixed on the cabinet door and is in transmission connection with the second control cam.

4. The solid-sealed circuit breaker of claim 1, wherein the opening module comprises a first isolation plate and an opening button, the first isolation plate is fixed on the inner wall of the box body, and the opening button is fixed on the first isolation plate, extends to the box door and is connected with the second interlocking member.

5. The solid-sealed circuit breaker of claim 4, wherein the closing module comprises a closing button and a second isolation plate, the second isolation plate is fixed on the inner wall of the box body, and the closing button is fixed on the second isolation plate, extends to the box door, and is connected with the second interlocking member.

6. The solid-sealed circuit breaker of the power distribution cabinet according to claim 1, wherein the circuit breaker body further comprises an energy storage module, and the energy storage module is located inside a box body between the opening module and the closing module; the energy storage module comprises an energy storage block, an energy storage connecting rod, a driving rotating rod and an energy storage gear, the driving rotating rod is connected to the inside of the box body through a fifth isolating plate and is in transmission connection with the energy storage gear, and the energy storage gear is connected with the energy storage block through the energy storage connecting rod.

7. The solid-sealed circuit breaker of the power distribution cabinet according to claim 5, wherein the vacuum switch control assembly further comprises a buffer module, the buffer module comprises a splice plate, a buffer rod and a buffer component, the buffer component is fixed at the bottom of the box body and connected with the splice plate through the buffer rod, and the splice plate is connected with the first isolation plate and the second isolation plate.

8. The solid-sealed circuit breaker of a power distribution cabinet according to claim 1, wherein an auxiliary control panel is disposed on a surface of the cabinet door.

9. A circuit breaker assembly, characterized in that it comprises the circuit breaker of any one of claims 1 to 8, said circuit breaker body being selected from three and fixed to a mounting plate.

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