CN212084934U

CN212084934U - Novel circuit breaker

Info

Publication number: CN212084934U
Application number: CN202021016284.0U
Authority: CN
Inventors: 常稳; 席岩飞; 张闫秋; 刘树林; 谢雷洪
Original assignee: Shanglian Holding Group Co ltd
Current assignee: Shanglian Holding Group Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2020-12-04
Anticipated expiration: 2030-06-05

Abstract

The utility model discloses a novel circuit breaker, including circuit breaker shell and manual axis, the bottom is provided with the motor in the circuit breaker shell, motor one side is in circuit breaker shell bottom is provided with interior axle, motor kinetic energy output is provided with gear one, interior axle top is provided with gear two, gear one with all be provided with the recess on the gear two, be provided with the spring leaf in the recess on the gear one, be provided with the universal driving shaft in the recess on the gear two, the universal driving shaft with be provided with the cam assembly between the gear two. Has the advantages that: the utility model discloses a set up the manual/automatic divide-shut brake device of a novel structure, including subassembly such as gear one, gear two, spring leaf, cam and connecting rod, can realize the manual divide-shut brake function of circuit breaker equally, this manual/automatic divide-shut brake device compact structure, small, stable performance is reliable, the installation is simple and easy moreover.

Description

Novel circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field, concretely relates to novel circuit breaker.

Background

The residual current protection circuit breaker is mainly suitable for a power distribution network with 50Hz alternating current, 400V rated voltage and 800A rated current, is used for providing indirect contact protection for people, can also be used for preventing fire hazard caused by ground fault current generated due to equipment insulation damage, and can be used for distributing electric energy and protecting overload, short circuit and electric leakage of circuits and power supply equipment. At present, most residual current protection circuit breakers in the market are provided with manual/automatic switching-on and switching-off devices, however, the structural design of the manual/automatic switching-on and switching-off devices on the residual current protection circuit breakers is unreasonable, so that the residual current protection circuit breakers have the defects of inconvenience in installation, large size, complex structure and unstable performance of the manual/automatic switching-on and switching-off devices.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, a novel circuit breaker is provided, and the problems that the manual/automatic opening and closing device on the existing residual current protection circuit breaker is unreasonable in structural design and has the defects of inconvenience in installation, large size, complex structure and unstable performance are solved.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a novel circuit breaker, including circuit breaker shell and manual axis, the bottom is provided with the motor in the circuit breaker shell, motor one side is in circuit breaker shell bottom is provided with interior axle, motor kinetic energy output is provided with gear one, interior axle top is provided with gear two, gear one with all be provided with the recess on the gear two, be provided with the spring leaf in the recess on the gear one, be provided with the universal driving shaft in the recess on the gear two, the universal driving shaft with be provided with the cam assembly between the gear two, cam assembly top is provided with the connecting rod, the universal driving shaft top is provided with the manual axis, be provided with the wiring port on the outside both sides wall of circuit breaker shell.

Furthermore, the motor is fixedly connected with the shell of the circuit breaker through a clamping groove, and the inner shaft is rotatably connected with the shell of the circuit breaker through a bearing.

By adopting the technical scheme, the inner shaft is of the structure at the bottom in the shell of the circuit breaker.

Further, the first gear is nested at the kinetic energy output end of the motor, and the second gear is nested at the top end of the inner shaft.

By adopting the technical scheme, the motor is a brushless motor, the response speed is high, and the energy consumption is low.

Furthermore, the grooves are formed in the first gear and the second gear, and the spring piece is fixed to the first gear through the grooves.

Through adopting above-mentioned technical scheme, the spring leaf plays and drives a gear pivoted purpose, plays simultaneously and bounces or the card is gone into when automatic and manual divide-shut brake, switches over.

Furthermore, the linkage shaft is embedded in the second gear through the groove, and the cam assembly is embedded in the linkage shaft and connected with the second gear in a clamping and pressing mode.

By adopting the technical scheme, the linkage shaft is used for transmitting the driving force outside the manual shaft to the cam.

Further, the connecting rod with the cam module passes through draw-in groove fixed connection, manual axle with the universal driving shaft passes through the key-type connection, the wiring port with the circuit breaker shell passes through the screw connection.

By adopting the technical scheme, the connecting rod is used for transferring the kinetic energy of the cam assembly to the handle of the circuit breaker to execute corresponding closing and opening actions.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

for the structural design who solves manual/automatic divide-shut brake device on the current residual current protection circuit breaker unreasonable, there is the problem of manual/automatic divide-shut brake device installation inconvenience, bulky, the structure is complicated, the unstable defect of performance, the utility model discloses a set up the manual/automatic divide-shut brake device of a novel structure, including subassembly such as gear one, gear two, spring leaf, cam and connecting rod, can realize the manual divide-shut brake function of circuit breaker equally, this manual/automatic divide-shut brake device compact structure, small, stable performance is reliable, the installation is simple and easy moreover.

Drawings

Fig. 1 is a top view of a novel circuit breaker according to the present invention;

fig. 2 is a schematic structural diagram of the circuit breaker housing of the present invention.

The reference numerals are explained below:

1. a circuit breaker housing; 2. a cam assembly; 3. a spring plate; 4. a first gear; 5. a second gear; 6. a manual shaft; 7. a linkage shaft; 8. a motor; 9. a wiring port; 10. a connecting rod; 11. a groove; 12. an inner shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-2, the novel circuit breaker in this embodiment includes a circuit breaker housing 1 and a manual shaft 6, a motor 8 is disposed at the bottom of the circuit breaker housing 1, a first shaft 12 is disposed at the bottom of the circuit breaker housing 1 on one side of the motor 8, a first gear 4 is disposed at the kinetic energy output end of the motor 8, a second gear 5 is disposed at the top of the first shaft 12, grooves 11 are disposed on the first gear 4 and the second gear 5, a spring leaf 3 is disposed in the groove 11 on the first gear 4, a linkage shaft 7 is disposed in the groove 11 on the second gear 5, a cam assembly 2 is disposed between the linkage shaft 7 and the second gear 5, a connecting rod 10 is disposed at the top of the cam assembly 2, the manual shaft 6 is disposed at the top of the linkage shaft.

The motor 8 is fixedly connected with the breaker shell 1 through a clamping groove, the inner shaft 12 is rotatably connected with the breaker shell 1 through a bearing, and the inner shaft 12 is of a structure at the bottom in the breaker shell 1.

The first gear 4 is nested at the kinetic energy output end of the motor 8, the second gear 5 is nested at the top end of the inner shaft 12, the motor 8 is a brushless motor 8, the response speed is high, and the energy consumption is low.

The grooves 11 are formed in the first gear 4 and the second gear 5, the spring piece 3 is fixed to the first gear 4 through the grooves 11, the spring piece 3 achieves the purpose of driving the first gear 4 to rotate, and meanwhile the spring piece bounces or is clamped in when the brake is automatically switched on and switched off manually, and switching is conducted.

The linkage shaft 7 is embedded in the second gear 5 through the groove 11, the cam assembly 2 is embedded in the linkage shaft 7 and connected with the second gear 5 in a clamping and pressing mode, and the linkage shaft 7 is used for transmitting driving force outside the manual shaft 6 to the cam.

The connecting rod 10 is fixedly connected with the cam assembly 2 through a clamping groove, the manual shaft 6 is in key connection with the linkage shaft 7, the wiring port 9 is connected with the breaker shell 1 through a screw, and the connecting rod 10 is used for transmitting kinetic energy of the cam assembly 2 to a breaker handle to execute corresponding closing and opening actions.

The specific implementation process of this embodiment is as follows: firstly, a power supply circuit is connected to a shell 1 of the circuit breaker through a wiring port 9, so that the device can normally play a power-off protection role, when the manual/automatic switching-on and switching-off device works, when the circuit breaker is automatically switched on, a motor 8 drives a spring piece 3 to rotate, the spring piece 3 is clamped in a groove 11 on a first gear 4, the spring piece 3 drives the first gear 4 to rotate, the first gear 4 drives a second gear 5 on an inner shaft 12 on one side to rotate, a cam component 2 rotates along with the second gear 5 on the inner shaft 12, and a connecting rod 10 on the cam component 2 drives a handle of the circuit breaker to act; when the manual opening and closing of the circuit breaker, the manual shaft 6 is covered by the face of the circuit breaker through clockwise rotation, the manual shaft 6 drives the cam assembly 2 to rotate through the linkage shaft 7, the spring piece 3 bounces at the moment, and the connecting rod 10 on the cam assembly 2 drives the handle of the circuit breaker to act, so that the manual opening and closing of the circuit breaker are realized.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. A novel circuit breaker is characterized in that: the circuit breaker comprises a circuit breaker shell (1) and a manual shaft (6), wherein a motor (8) is arranged at the bottom in the circuit breaker shell (1), an inner shaft (12) is arranged at the bottom of the circuit breaker shell (1) on one side of the motor (8), a first gear (4) is arranged at the kinetic energy output end of the motor (8), a second gear (5) is arranged at the top of the inner shaft (12), grooves (11) are formed in the first gear (4) and the second gear (5), spring pieces (3) are arranged in the grooves (11) in the first gear (4), a linkage shaft (7) is arranged in the grooves (11) in the second gear (5), a cam assembly (2) is arranged between the linkage shaft (7) and the second gear (5), a connecting rod (10) is arranged at the top of the cam assembly (2), and the manual shaft (6) is arranged at the top of the linkage, and wiring ports (9) are arranged on two side walls outside the breaker shell (1).

2. The novel circuit breaker of claim 1, wherein: the motor (8) is fixedly connected with the breaker shell (1) through a clamping groove, and the inner shaft (12) is rotatably connected with the breaker shell (1) through a bearing.

3. The novel circuit breaker of claim 1, wherein: the first gear (4) is nested at the kinetic energy output end of the motor (8), and the second gear (5) is nested at the top end of the inner shaft (12).

4. The novel circuit breaker of claim 1, wherein: the grooves (11) are formed in the first gear (4) and the second gear (5), and the spring piece (3) is fixed to the first gear (4) through the grooves (11).

5. The novel circuit breaker of claim 1, wherein: the linkage shaft (7) is embedded in the second gear (5) through the groove (11), and the cam assembly (2) is embedded in the linkage shaft (7) and connected with the second gear (5) in a clamping and pressing mode.

6. The novel circuit breaker of claim 1, wherein: connecting rod (10) with cam module (2) passes through draw-in groove fixed connection, manual shaft (6) with universal driving shaft (7) pass through the key-type connection, wiring port (9) with circuit breaker shell (1) passes through the screw connection.