CN215418067U

CN215418067U - Automatic reclosing device of leakage protection circuit breaker

Info

Publication number: CN215418067U
Application number: CN202121835940.4U
Authority: CN
Inventors: 王琪; 文杰; 罗将城; 赵威; 张广西
Original assignee: Zhejiang Xia Xing Electronic Technology Ltd
Current assignee: Zhejiang Xia Xing Electronic Technology Ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-01-04
Anticipated expiration: 2031-08-06

Abstract

The utility model relates to an automatic reclosing device of an earth leakage protection circuit breaker, which comprises a shell, an intelligent control circuit board arranged in the shell and an electric operating assembly arranged in the shell, wherein the electric operating assembly comprises a motor, a handle gear used for driving the circuit breaker to perform closing or opening, a driving gear meshed with the handle gear and a transmission gear set arranged between the motor and the driving gear, a shifting block is arranged on one side of the driving gear, the handle gear acts along with the driving gear and can realize the electric closing of the circuit breaker, a tripping shifting plate matched with a tripping shaft of the circuit breaker is rotatably arranged in the shell corresponding to the shifting block, the shifting block acts along with the driving gear and can drive the tripping shifting plate to act, and the tripping shifting plate can drive the tripping shaft to act and can realize the electric opening of the circuit breaker. The utility model has the advantages of simple structure, stable and reliable performance, small volume, convenient assembly and low cost.

Description

Automatic reclosing device of leakage protection circuit breaker

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to an automatic reclosing device of an earth leakage protection circuit breaker.

Background

At present, small circuit breakers are widely used in low-voltage distribution networks, mainly in various places such as industrial, commercial, high-rise and residential houses, and can perform overcurrent protection and leakage protection on electric devices such as motors, distribution lines and lighting circuits. The traditional small circuit breaker needs manual operation to complete the opening and closing actions. With the development of intelligent power grids in China, on the premise of requiring safe operation of the power grids, the realization of intellectualization of control of electric appliances is more and more urgent. In order to cope with new situation changes, the existing miniature circuit breaker should be provided with an automatic reclosing function. The automatic reclosing device of the miniature circuit breaker is an accessory used for a remote electric opening and closing circuit breaker, is directly matched with a prepayment electric energy meter for use, and can realize reclosing after payment. The automatic reclosing device of the existing automatic reclosing leakage protection circuit breaker is unreasonable in structural design, so that the automatic reclosing device of the automatic reclosing miniature circuit breaker has the defects of complex structure, unreliable performance and large volume.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides the automatic reclosing device of the leakage protection circuit breaker, which has the advantages of simple structure, stable and reliable performance and small volume.

In order to achieve the purpose, the utility model adopts an automatic reclosing device of an earth leakage protection circuit breaker, which comprises a shell arranged on one side of the circuit breaker, an intelligent control circuit board arranged in the shell, and an electric operating assembly arranged in the shell, wherein the electric operating assembly comprises a motor, a handle gear used for driving the circuit breaker to carry out closing or opening, a driving gear meshed with the handle gear, and a transmission gear group arranged between the motor and the driving gear, a shifting block is arranged on one side of the driving gear, the handle gear acts along with the driving gear and can realize electric closing of the circuit breaker, a tripping shifting plate matched with a tripping shaft of the circuit breaker is rotatably arranged in the shell corresponding to the shifting block, the shifting block acts along with the driving gear and can drive the tripping shifting plate to act, and the tripping plate can drive the tripping shaft to act, and the electric opening of the circuit breaker can be realized.

The beneficial effect of above-mentioned structure is: the automatic reclosing device of the leakage protection circuit breaker has the advantages of simple structure, stable and reliable performance and small size, and the electric operating assembly of the automatic reclosing is simple in structural design and more reliable in performance. The motor drives the driving gear through the transmission gear assembly, the driving gear drives the handle gear to act, the handle gear drives the handle of the circuit breaker to act, and therefore electric switching-on of the circuit breaker can be achieved.

Particularly, drive gear group including the linkage set up in the epaxial worm of pivot of motor, with the first drive gear of worm engaged with, with the second drive gear of first drive gear engaged with, drive gear and second gear engaged with, drive gear on be provided with arc gear, the handle gear on be provided with arc gear matched with sector gear, arc gear and sector gear engaged with. The motor drives the handle gear to act through the transmission gear group, so that electric opening or closing of the circuit breaker can be realized, and the transmission gear component is simple in structural design and small in occupied space, so that the size of the automatic reclosing device is favorably reduced.

Particularly, the shell is internally provided with an electromagnetic tripping assembly corresponding to one side of the tripping shifting plate, the electromagnetic tripping assembly comprises an electromagnetic tripping device electrically connected with the intelligent control circuit board, a push plate which is arranged in the shell in a sliding manner and is in linkage fit with an ejector rod of the electromagnetic tripping device, and a spring arranged between the push plate and the shell, the push plate acts along with the ejector rod and can push the tripping shifting plate to act, and the tripping shifting plate can push the tripping shaft to act. An electromagnetic tripping component is arranged in the shell and can drive the tripping shaft to act, so that the leakage protection effect can be achieved. When the circuit leaks electricity, the intelligent control circuit board controls the action of the electromagnetic release, the ejector rod of the electromagnetic release pushes the push plate, the push plate pushes the release to dial the plate action, and the release dials the plate to dial the release shaft, so that the leakage release and the brake opening of the automatic reclosing leakage protection circuit breaker can be realized.

Particularly, the intelligent control circuit board is provided with an electric leakage test button, and the upper end of the electric leakage test button penetrates through a button hole of the shell and extends out of the shell. The leakage test button is arranged on the intelligent control circuit board, and the leakage test button can control the action of the electromagnetic release, so that the leakage test detection of the automatic reclosing leakage protection circuit breaker can be realized, and the use by a user is facilitated.

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.

Fig. 3 is an internal structure diagram of the embodiment of the present invention with the intelligent control circuit board removed.

Fig. 4 is a perspective view of an electrically operated assembly in accordance with an embodiment of the present invention.

Detailed Description

As shown in fig. 1 to 4, an embodiment of the present invention is an automatic reclosing device of an earth leakage protection circuit breaker, including a housing 10 disposed on one side of the circuit breaker, an intelligent control circuit board 11 disposed in the housing 10, and an electric operating assembly 20 disposed in the housing 10, where the electric operating assembly 20 includes a motor 21, a handle gear 22 for driving the circuit breaker to perform closing or opening, a driving gear 23 engaged with the handle gear 22, and a transmission gear set 24 disposed between the motor 21 and the driving gear 23, a shifting block 231 is disposed on one side of the driving gear 23, the handle gear 22 moves along with the driving gear 23 and can realize electric closing of the circuit breaker, a trip shifting plate 26 matched with a trip shaft 25 of the circuit breaker is rotatably disposed in the housing 10 at a position corresponding to the shifting block 231, the shifting block 231 moves along with the driving gear 23 and can drive the trip shifting plate 26 to move, the tripping plate 26 can drive the tripping shaft 25 to act, and the electric brake opening of the circuit breaker can be realized. The transmission gear set 24 comprises a worm 241 which is arranged on a rotating shaft of the motor 21 in a linkage manner, a first transmission gear 242 meshed with the worm 241, and a second transmission gear 243 meshed with the first transmission gear 242, the driving gear 23 is meshed with the second transmission gear 243, the driving gear 23 is provided with an arc gear 232, the handle gear 22 is provided with a sector gear 221 matched with the arc gear 232, and the arc gear 232 is meshed with the sector gear 221. The motor drives the handle gear to act through the transmission gear group, so that electric opening or closing of the circuit breaker can be realized, and the transmission gear component is simple in structural design and small in occupied space, so that the size of the automatic reclosing device is favorably reduced. An electromagnetic tripping assembly 30 is arranged at one side of the shell 10 corresponding to the tripping plate 26,

as shown in fig. 3 and 4, the electromagnetic trip assembly 30 includes an electromagnetic trip 31 electrically connected to the intelligent control circuit board 11, a push plate 32 slidably disposed in the housing 10 and cooperating with a push rod 311 of the electromagnetic trip 31 in a linkage manner, and a spring 33 disposed between the push plate 32 and the housing 10, wherein the push plate 32 acts along with the push rod 311 and can push the trip plate 26 to act, and the trip plate 26 can push the trip shaft 25 to act. An electromagnetic tripping component is arranged in the shell and can drive the tripping shaft to act, so that the leakage protection effect can be achieved. When the circuit leaks electricity, the intelligent control circuit board controls the action of the electromagnetic release, the ejector rod of the electromagnetic release pushes the push plate, the push plate pushes the release to dial the plate action, and the release dials the plate to dial the release shaft, so that the leakage release and the brake opening of the automatic reclosing leakage protection circuit breaker can be realized. The intelligent control circuit board 11 is provided with an electric leakage test button 111, and the upper end of the electric leakage test button 111 passes through the button hole 101 of the casing 10 and extends out of the casing 10. The leakage test button is arranged on the intelligent control circuit board, and the leakage test button can control the action of the electromagnetic release, so that the leakage test detection of the automatic reclosing leakage protection circuit breaker can be realized, and the use by a user is facilitated.

The automatic reclosing device of the leakage protection circuit breaker has the advantages of simple structure, stable and reliable performance and small size, and the electric operating assembly of the automatic reclosing is simple in structural design and more reliable in performance. The motor drives the driving gear through the transmission gear assembly, the driving gear drives the handle gear to act, the handle gear drives the handle of the circuit breaker to act, and therefore electric switching-on of the circuit breaker can be achieved.

Claims

1. The utility model provides an automatic reclosing device of earth leakage protection circuit breaker, includes the casing of setting on circuit breaker one side, sets up intelligent control circuit board in the casing, sets up the electric operating assembly in the casing, its characterized in that: the electrically operated assembly include the motor, be used for driving the circuit breaker to carry out the handle gear of combined floodgate or separating brake, with handle gear engaged with drive gear, set up the drive gear group between motor and drive gear, one side of drive gear on be provided with the shifting block, the handle gear move along with drive gear, and can realize the electronic combined floodgate of circuit breaker, the casing in correspond shifting block department and rotate and be provided with the tripping shaft matched with dropout of circuit breaker and dial the board, the shifting block move along with drive gear and can drive the action of dropout dial board, the dropout dial the board and can drive the action of tripping shaft, and can realize the electronic separating brake of circuit breaker.

2. The automatic reclosing device of the earth leakage protection circuit breaker according to claim 1, wherein: the gear train including the linkage set up in the epaxial worm of pivot of motor, with the first drive gear of worm engaged with, with the second drive gear of first drive gear engaged with, drive gear and second gear engaged with, drive gear on be provided with arc gear, the handle gear on be provided with arc gear matched with sector gear, arc gear and sector gear engaged with.

3. The automatic reclosing device of the earth leakage protection circuit breaker according to claim 1 or 2, characterized in that: the shell in one side department that corresponds the dropout and dial the board be provided with electromagnetic tripping assembly, electromagnetic tripping assembly include with the intelligent control circuit board electricity be connected electromagnetic trip, slide to set up in the shell and with electromagnetic trip's ejector pin linkage complex push pedal, set up the spring between push pedal and shell, the push pedal along with the ejector pin action and can promote the dropout and dial the board action, and the dropout dials the board and can promote the action of trip shaft.

4. The automatic reclosing device of the earth leakage protection circuit breaker according to claim 1 or 2, characterized in that: the intelligent control circuit board on be provided with the electric leakage test button, this electric leakage test button upper end passes the button hole of casing and extends outside the casing.