CN211404425U

CN211404425U - Electric operating mechanism of miniature circuit breaker

Info

Publication number: CN211404425U
Application number: CN201921806745.1U
Authority: CN
Inventors: 徐象兵
Original assignee: Maxge Electric Technology Co ltd
Current assignee: Maxge Electric Technology Co ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-09-01
Anticipated expiration: 2029-10-25

Abstract

The utility model provides a miniature circuit breaker electric operating mechanism, it includes the operating mechanism casing, is equipped with the circuit board in its casing, is equipped with electric motor on the circuit board, and this motor one side is equipped with the worm, first gear is connected to the worm, and first gear and second gear meshing are connected, and the pinion of second gear and sector gear are connected and rotate, are equipped with the square shaft in this sector gear, the square shaft splices with the handle, can drive the handle and rotate, realizes that circuit breaker combined floodgate-motor reverses to reset. The novel steel wire rope has the characteristics of simple structure, firm structure, long service life, convenience in installation and the like.

Description

Electric operating mechanism of miniature circuit breaker

Technical Field

The utility model discloses an electric operating mechanism relates to power equipment low pressure distribution field, and specific saying so relates to a miniature circuit breaker electric operating mechanism.

Background

The circuit breaker is the common operating device who protects safe power consumption in our life, its principle is exactly through the short circuit, thereby let the circuit not lead to the protection circuit, common circuit breaker all is this principle automatic disconnection in the life, however in real life, many wireless technology let the circuit breaker also can obtain remote control, but is totally different with ordinary circuit breaker in principle and structure, ordinary remote circuit breaker is the switch of control circuit breaker and reaches the purpose of short circuit, but how to recover under the very big condition after the short circuit, still need artifical manual control, it is very inconvenient.

Disclosure of Invention

The utility model discloses an overcome prior art not enough, structurally not identical with ordinary circuit breaker with the remote control circuit breaker, reach the operation that recovers after the short circuit, the utility model discloses the technical scheme who takes does: the utility model provides a miniature circuit breaker electric operating mechanism, it includes the operating mechanism casing, is equipped with the circuit board in its casing, is equipped with electric motor on the circuit board, and this motor one side is equipped with the worm, first gear is connected to the worm, and first gear and second gear meshing are connected, and the pinion of second gear and sector gear are connected and rotate, are equipped with the square shaft in this sector gear, the square shaft splices with the handle, can drive the handle and rotate, realizes that circuit breaker combined floodgate-motor reverses to reset.

Preferably, the method comprises the following steps: the second gear is a main gear and an auxiliary gear, the auxiliary gear is a half gear, when the gear rotates to a switching-on position and a switching-off position, the auxiliary gear is separated from the sector gear, and a handle of the circuit breaker can be freely switched on and off.

Preferably, the method comprises the following steps: the second gear is further provided with a tripping rod and a position detection switch, the tripping rod is provided with a limiting rod, the limiting rod is made to touch the position detection switch through rotation of the second gear, and a switch-on position signal is obtained.

Preferably, the method comprises the following steps: the second gear is provided with a poking rod, the poking rod is enabled to poke the tripping rod through rotation of the second gear to realize tripping and brake-off of the circuit breaker, the tripping rod rotates to move away from the poking rod in the process of brake-off of the circuit breaker, and the second gear set can continue to rotate positively to realize closing.

The utility model discloses structurally change original circuit into the gear, these gears all are by motor control, can reach and restore the use repeatedly, the utility model has the characteristics of simple structure, the sound construction, long service life to simple to operate etc.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a structural diagram of the electrically operated opening state of the present invention;

FIG. 3 is a schematic diagram of the right side projection structure of FIG. 2;

FIG. 4 is a schematic diagram of the right side projection structure of FIG. 3;

FIG. 5 is a structural schematic diagram of the electrically operated switching-on state of the present invention;

FIG. 6 is a schematic diagram of a right side projection of FIG. 5;

fig. 7 is a schematic diagram of a right side projection structure of fig. 6.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings: as shown in fig. 1-7, the electric operating mechanism of the miniature circuit breaker of the present invention comprises an operating mechanism housing 5, a circuit board 4 is disposed in the housing 5, an electric motor 8 is disposed on the circuit board 4, a worm 3 is disposed on one side of the motor 8, the worm 3 is connected to a first gear 6, the first gear 6 is connected to a second gear 2, and a secondary gear of the second gear 2 is connected to a sector gear 1 for rotation, a square shaft is disposed in the sector gear 1, the square shaft is connected to a handle for driving the handle to rotate, thereby realizing the closing of the circuit breaker and the reverse reset of the motor, the second gear 2 is a main gear and a secondary gear, the secondary gear is a half gear, when the gear rotates to the closing position to the opening position, the secondary gear is separated from the sector gear, the handle of the circuit breaker can be freely opened and closed, a trip lever 7 and a position detecting switch 9 are further disposed on the second gear 2, a limit lever 2-3 is disposed on the trip, the second gear 2 rotates to enable the limiting rod 2-3 to touch the position detection switch 9, a switch-on position signal is obtained, the poking rod 2-1 is arranged on the second gear 2, the poking rod 2-1 is enabled to poke the tripping rod 2-3 through rotation of the second gear 2, tripping and brake opening of the circuit breaker are achieved, in the process that the circuit breaker is opened, the tripping rod rotates 2-3 and moves away from the poking rod 2-1, and the second gear 2 group can continue to rotate forwards to achieve switch-on.

Compared with the traditional motor rotating-closing-motor rotating-reversing reset (realizing free opening and closing of the handle) -motor continuing reversing-opening-motor rotating-reversing reset (realizing free opening and closing of the handle) motion mode of the electric operating mechanism of the utility model; the tripping time is greatly reduced, the working time of the motor is reduced, and the noise is reduced.

Claims

1. The electric operating mechanism of the miniature circuit breaker comprises an operating mechanism shell, a circuit board is arranged in the operating mechanism shell, an electric motor is arranged on the circuit board, a worm is arranged on one side of the motor, and the electric operating mechanism is characterized in that the worm is connected with a first gear, the first gear is in meshing connection with a second gear, an auxiliary gear of the second gear is connected with a sector gear and rotates, a square shaft is arranged in the sector gear, the square shaft is spliced with a handle and can drive the handle to rotate, and the switching-on and reversing-resetting of the circuit breaker and the motor are realized.

2. The electric operating mechanism of claim 1, wherein the second gear is a main gear and a secondary gear, the secondary gear is a half gear, and when the gear rotates to the on position to the off position, the secondary gear is separated from the sector gear, and the handle of the circuit breaker can be freely opened and closed.

3. The electric operating mechanism of small-sized circuit breaker according to claim 1, wherein the second gear further comprises a trip lever and a position detecting switch, the trip lever is provided with a limit lever, and the limit lever is rotated by the second gear to touch the position detecting switch, thereby obtaining a switch-on position signal.

4. The electric operating mechanism of the miniature circuit breaker according to claim 1, 2 or 3, wherein the second gear is provided with a poke rod, the second gear rotates to enable the poke rod to poke the trip rod to realize tripping and opening of the circuit breaker, the trip rod rotates to move away from the poke rod in the process of opening of the circuit breaker, and the second gear set can continue to rotate forwards to realize closing.