Circuit breaker capable of automatically reclosing

Abstract

The utility model discloses a circuit breaker capable of automatically reclosing, which comprises a circuit breaker assembly formed by a plurality of circuit breakers with consistent structures, a linkage piece is further arranged on the circuit breaker assembly, and the linkage piece is connected with a trip arranged on each circuit breaker; tripping synchronous rotation on the circuit breaker assembly is realized through the linkage piece; a transmission shaft is further arranged in the circuit breaker assembly, one end of the transmission shaft penetrates through each release in the circuit breaker assembly, and the other end of the transmission shaft is connected with an execution mechanism arranged on one side of the circuit breaker assembly; and the power of the actuating mechanism is transmitted to each release through the transmission shaft, so that the release rotates synchronously. On the basis, due to the fact that the transmission shaft can achieve power transmission so that all the trips can rotate synchronously, and meanwhile the linkage pieces are arranged on all the trips in a sleeving mode, the actions of all the trips are consistent, the synchronism of the trips in the rotating process is improved, and then it is guaranteed that the circuit breaker assembly can reliably complete the switching-off action and the switching-on action.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker capable of automatically reclosing. Background Art

[0002] With the development of smart grid in my country, under the premise of requiring safe operation of power grid, it is more and more urgent to realize the intelligence of control electrical appliances. Small circuit breakers with automatic reclosing have been vigorously developed, and various transmission mechanisms and linkage devices have emerged. When developing the reclosing device of small circuit breaker, one of the key technical points is to ensure that the actuator cooperates with the circuit breaker assembly so that it can accurately and reliably open and close the gate, and avoid the small circuit breaker being unable to be well linked and tripped due to the large output stroke of the transmission mechanism. At the same time, after tripping, the linkage device has not returned to the specified position and the gate cannot be closed, so that the small circuit breaker cannot be normally switched on and off, and users cannot use electricity normally. Utility Model Content

[0003] The purpose of the utility model is to provide a circuit breaker capable of automatic reclosing to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circuit breaker capable of automatic reclosing, comprising a circuit breaker assembly consisting of a plurality of circuit breakers with the same structure, and a linkage is further provided on the circuit breaker assembly, the linkage is connected to a trip provided on each circuit breaker; and the trips on the circuit breaker assembly are synchronously rotated by the linkage; a transmission shaft is further provided inside the circuit breaker assembly, one end of the transmission shaft passes through each trip in the circuit breaker assembly, and the other end of the transmission shaft is connected to an actuator provided on one side of the circuit breaker assembly; the power of the actuator is transmitted to each of the trips by the transmission shaft, so that the multiple trips are synchronously rotated.

[0005] As a preferred technical solution of the utility model: a motor is provided inside the actuator; wherein the motor is connected to a gear through a reduction gear set, and the transmission shaft is installed in the gear.

[0006] As a preferred technical solution of the present utility model: the cross section of the transmission shaft is a rectangle.

[0007] As a preferred technical solution of the utility model: the release is connected to the transmission shaft through a provided mounting hole, and the release is connected to the linkage member through a provided connecting portion.

[0008] As a preferred technical solution of the utility model: a card slot is provided inside the linkage member, and the linkage member is connected to the connecting portion through the card slot.

[0009] As a preferred technical solution of the utility model: a partition is further provided in the card slot, and is connected to the through hole provided on the connecting part via a pin provided on the partition.

[0010] As a preferred technical solution of the utility model: a side of the linkage member away from the release is further provided with anti-slip grooves.

[0011] By adopting the above technical scheme, the beneficial effects of the utility model are as follows: since the inside of the trip is linked with the transmission shaft, and the outside of the trip is linked with the linkage piece; therefore, the trip can move synchronously inside and outside, which can reduce the bending of the transmission shaft due to excessive torque, and is also convenient for synchronously realizing the synchronous rotation of multiple trips from the outside; based on this, since the transmission shaft can realize power transmission, so that each trip rotates synchronously, and the linkage piece is sleeved on each trip, the action of each trip is consistent, so as to improve the synchronization of the trip rotation, thereby ensuring that the circuit breaker assembly can reliably complete the opening action and the closing action. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 It is an exploded schematic diagram of the main structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the main structure of the actuator of the utility model;

[0015] Figure 4 It is a schematic diagram of the internal structure of the actuator of the utility model;

[0016] Figure 5 It is a schematic diagram of the main structure of the tripping device of the utility model;

[0017] Figure 6 It is a schematic diagram of the main structure of the linkage part of the utility model.

[0018] In the figure: 1. circuit breaker assembly; 2. actuator; 3. linkage; 30. anti-slip groove; 31. pin; 32. slot; 33. partition; 4. transmission shaft; 5. gear; 6. motor; 7. release; 70. mounting hole; 71. through hole; 72. connecting part; 8. reduction gear set. DETAILED DESCRIPTION

[0019] Embodiments of the present utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present utility model, and should not be construed as limitations on the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "upper surface", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model.

[0020] See also Figure 1-6 The utility model provides an embodiment: a circuit breaker capable of automatic reclosing, comprising a circuit breaker assembly 1 consisting of a plurality of circuit breakers of the same structure, and a linkage member 3 is further provided on the circuit breaker assembly 1, and the linkage member 3 is connected to a trip 7 provided on each circuit breaker; and the trip 7 on the circuit breaker assembly 1 is synchronously rotated by the linkage member 3; a transmission shaft 4 is further provided inside the circuit breaker assembly 1, one end of the transmission shaft 4 passes through each trip 7 in the circuit breaker assembly 1, and the other end of the transmission shaft 4 is connected to an actuator 2 provided on one side of the circuit breaker assembly 1; the power of the actuator 2 is transmitted to each of the trips 7 through the transmission shaft 4, so that the multiple trips 7 are synchronously rotated.

[0021] In summary, since the inside of the trip 7 is linked with the transmission shaft 4, and the outside of the trip 7 is linked with the linkage member 3; therefore, the trip 7 can move synchronously inside and outside, which can reduce the bending of the transmission shaft 4 due to excessive torque, and is also convenient for synchronously rotating multiple trips 7 from the outside; based on this, since the transmission shaft 4 can realize power transmission, so that each trip 7 can rotate synchronously, that is, to realize synchronous opening action or closing action, and at the same time, the linkage member 3 is mounted on each trip 7, so that the action of each trip 7 is consistent, so as to improve the synchronization of the rotation of the trip 7, thereby ensuring that the circuit breaker assembly 1 can reliably complete the opening action and closing action.

[0022] Furthermore, since the actuator 2 is provided with a motor 6 inside, wherein the motor 6 is connected to the gear 5 through the reduction gear set 8, and the transmission shaft 4 is installed in the gear 5, the reduction gear set 8 can be used to provide sufficient power for the transmission shaft 4, wherein the reduction ratio of the reduction gear set 8 is 600:1, and the motor 6 is a 130 motor.

[0023] Furthermore, since the cross section of the transmission shaft 4 is rectangular, it is possible to effectively avoid the transmission shaft 4 from slipping, thereby causing the opening action or the closing action to be insensitive.

[0024] On the basis of the above scheme, since the release 7 is connected to the transmission shaft 4 through the provided mounting hole 70, and the release 7 is connected to the linkage member 3 through the provided connecting portion 72, the assembly of the linkage member 3, the transmission shaft 4 and the release 7 is simple and convenient, and the power transmission after assembly is stable and reliable.

[0025] Furthermore, since the coupling member 3 is provided with a card slot 32 inside and is connected to the connecting portion 72 via the card slot 32 , the coupling member 3 and the release 7 can be assembled by carding.

[0026] Furthermore, since a partition 33 is also provided in the slot 32, and is connected to the through hole 71 provided on the connecting portion 72 via a pin 31 provided on the partition 33, the pin 31 can be used to connect the through hole 71 to ensure the stability and reliability of the linkage member 3 and the release 7 after being connected, thereby effectively preventing the linkage member 3 and the release 7 from falling off.

[0027] In addition, since the side of the linkage member 3 away from the release 7 is also provided with anti-slip grooves 30 , the linkage member 3 will not slip when pushed by the user.

[0028] In summary, the device utilizes the transmission shaft 4 and the linkage 3 to connect the inside and outside of the trip 7, so that each trip 7 can form a whole, thereby improving the consistency of each trip 7 during operation, and thereby improving the reliability and stability of the opening or closing action of the device.

[0029] The above is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A circuit breaker capable of automatic reclosing, characterized in that: The invention comprises a circuit breaker assembly (1) composed of a plurality of circuit breakers of the same structure, wherein the circuit breaker assembly (1) is further provided with a linkage member (3), wherein the linkage member (3) is connected to a release member (7) provided on each circuit breaker; and the release member (7) on the circuit breaker assembly (1) is synchronously rotated by means of the linkage member (3); A transmission shaft (4) is also provided inside the circuit breaker assembly (1), one end of the transmission shaft (4) passes through each release (7) in the circuit breaker assembly (1), and the other end of the transmission shaft (4) is connected to an actuator (2) provided on one side of the circuit breaker assembly (1); The power of the actuator (2) is transmitted to each of the trips (7) via the transmission shaft (4), so that the multiple trips (7) rotate synchronously.

2. A circuit breaker capable of automatic reclosing according to claim 1, characterized in that: A motor (6) is provided inside the actuator (2); wherein the motor (6) is connected to a gear (5) via a reduction gear set (8), and the transmission shaft (4) is installed inside the gear (5).

3. A circuit breaker capable of automatic reclosing according to claim 1, characterized in that: The cross section of the transmission shaft (4) is rectangular.

4. A circuit breaker capable of automatic reclosing according to claim 1, 2 or 3, characterized in that: The release (7) is connected to the transmission shaft (4) via a provided mounting hole (70), and the release (7) is connected to the linkage member (3) via a provided connecting portion (72).

5. A circuit breaker capable of automatic reclosing according to claim 4, characterized in that: A clamping groove (32) is provided inside the linkage member (3), and is connected to the connecting portion (72) via the clamping groove (32).

6. A circuit breaker capable of automatic reclosing according to claim 5, characterized in that: A partition (33) is also provided in the slot (32), and is connected to a through hole (71) provided on the connecting portion (72) via a pin (31) provided on the partition (33).

7. A circuit breaker capable of automatic reclosing according to claim 6, characterized in that: The side of the linkage member (3) away from the release (7) is also provided with anti-slip grooves (30).

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