CN221201049U

CN221201049U - Circuit breaker

Info

Publication number: CN221201049U
Application number: CN202323132254.2U
Authority: CN
Inventors: 周维峰; 林凯; 胡广召
Original assignee: Zhejiang Aoelec Electrical Co Ltd
Current assignee: Zhejiang Aoelec Electrical Co Ltd
Priority date: 2023-11-17
Filing date: 2023-11-17
Publication date: 2024-06-21
Anticipated expiration: 2033-11-17

Abstract

The utility model discloses a circuit breaker, which comprises a moving contact operating mechanism, an electromagnetic release, a wire frame and a wire electrically connected with the electromagnetic release, wherein the moving contact operating mechanism comprises a moving contact, a jump buckle, a moving contact support and a lock catch, an abutting column is arranged on the moving contact support, a conducting wire is electrically connected on the wire frame, a micro switch electrically connected with the conducting wire is arranged on one side of the wire frame, a guide block is arranged on one side of the micro switch, which is close to the moving contact support, one end of the guide block abuts against the abutting column, and the other end of the guide block is provided with an abutting part which is in abutting or separating fit with the micro switch. The utility model has reasonable structural design, can realize the interference or separation fit of the guide block and the micro switch by arranging the movable contact support with the abutting column and the guide block, and has stable action, sensitive response and compact and stable structure.

Description

Circuit breaker

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker.

Background

CN217507458U discloses a micro-switch assembly suitable for a circuit breaker, the circuit breaker comprising a circuit breaker housing and an operating mechanism rotating spindle, the operating mechanism rotating spindle being rotationally connected to the micro-switch assembly; the micro-switch assembly includes a switch housing; the internal accommodating space of the switch shell accommodates the functional components of the micro switch assembly; the rotation of the rotating main shaft of the operating mechanism changes the state signal of the micro switch assembly through the functional component; the switch housing is detachably integrally mounted to the circuit breaker housing; the state signal of the micro-switch assembly corresponds to the rotation state of the rotating main shaft of the operating mechanism.

The micro-switch assembly suitable for the circuit breaker is complex in structure and cannot be matched with the moving contact assembly of the circuit breaker well.

Disclosure of Invention

The utility model overcomes the defects of the prior art, and provides the circuit breaker which is reasonable in structural design, and by arranging the movable contact support with the abutting column and the guide block, the interference or separation fit of the guide block and the micro switch can be realized, the guide block is stable in action, sensitive in response and compact and stable in structure.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The circuit breaker comprises a moving contact operating mechanism, an electromagnetic release, a wire frame and a wire electrically connected with the electromagnetic release, wherein the moving contact operating mechanism comprises a moving contact, a jump buckle, a moving contact support and a lock catch, an abutting column is arranged on the moving contact support, a conducting wire is electrically connected on the wire frame, a micro switch electrically connected with the conducting wire is arranged on one side of the wire frame, a guide block is arranged on one side of the micro switch, which is close to the moving contact support, one end of the guide block abuts against the abutting column, the other end of the guide block is provided with an abutting part which is in abutting or separating fit with the micro switch, and when the moving contact is disconnected, the abutting part abuts against the micro switch; when the movable contact is closed, the abutting part is separated from the micro switch.

Preferably, the shell of the circuit breaker is provided with a containing groove, one side of the guide block, which is close to the containing groove, is provided with a sliding block, the sliding block is arranged in the containing groove in a sliding mode, a mounting column is arranged on the sliding block, a reset spring is sleeved on the mounting column, one end of the reset spring is abutted to the side face of the containing groove, and the other end of the reset spring is abutted to the sliding block.

Preferably, a mounting part is arranged on one side of the housing, which is positioned in the accommodating groove, and a positioning column for positioning the micro switch is arranged on the mounting part.

Preferably, the guide block is integrally formed with an abutting plate abutting against the abutting column, and the thickness of the abutting plate is smaller than the whole thickness of the guide block.

Preferably, the shell is provided with a placement groove for placing part of the wires, and a protection plate is arranged above the placement groove.

The utility model has the beneficial effects that:

the utility model has reasonable structural design, can realize the interference or separation fit of the guide block and the micro switch by arranging the movable contact support with the abutting column and the guide block, and has stable action, sensitive response and compact and stable structure.

Drawings

FIG. 1 is a schematic diagram of a structure reflecting the closing of a moving contact according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a structure reflecting the opening of a moving contact according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a movable contact support according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram showing the structure of a guide block according to an embodiment of the present utility model;

FIG. 5 is a second schematic diagram of a structure of a guide block according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a reflecting shell according to an embodiment of the present utility model.

In the figure: 1. a moving contact operating mechanism; 11. a moving contact; 12. jumping buckle; 13. a moving contact support; 14. locking; 15. abutting the column; 2. an electromagnetic trip; 3. a wire frame; 31. a conductive wire; 4. a wire; 5. a micro-switch; 6. a guide block; 61. an abutting portion; 62. a slide block; 63. a mounting column; 64. a return spring; 65. an abutting plate; 7. a housing; 71. a receiving groove; 72. a mounting part; 73. positioning columns; 74. a placement groove; 75. and (5) protecting the plate.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-6, the circuit breaker comprises a moving contact operating mechanism 1, an electromagnetic release 2, a wire frame 3 and a wire 4 electrically connected with the electromagnetic release 2, wherein the moving contact operating mechanism 1 comprises a moving contact 11, a trip button 12, a moving contact 11 bracket and a lock catch 14, an abutting column 15 is arranged on the moving contact 11 bracket, a conducting wire 31 is electrically connected to the wire frame 3, a micro switch 5 electrically connected with the conducting wire 31 is arranged on one side of the wire frame 3, a guide block 6 is arranged on one side of the micro switch 5 close to the moving contact 11 bracket, one end of the guide block 6 abuts against the abutting column 15, the other end of the guide block 6 is provided with an abutting part 61 which abuts against or is in separated fit with the micro switch 5, and when the moving contact 11 is disconnected, the abutting part 61 abuts against the micro switch 5; when the movable contact 11 is closed, the abutting portion 61 is separated from the micro switch 5; the shell 7 of the circuit breaker is provided with a containing groove 71, one side, close to the containing groove 71, of the guide block 6 is provided with a sliding block 62, the sliding block 62 is arranged in the containing groove 71 in a sliding mode, the sliding block 62 is provided with a mounting column 63, the mounting column 63 is sleeved with a reset spring 64, one end of the reset spring 64 is abutted to the side face of the containing groove 71, and the other end of the reset spring 64 is abutted to the sliding block 62; a mounting part 72 is arranged on one side of the shell 7, which is positioned on the accommodating groove 71, and a positioning column 73 for positioning the micro switch 5 is arranged on the mounting part 72; an abutting plate 65 abutting against the abutting column 15 is integrally formed on the guide block 6, and the thickness of the abutting plate 65 is smaller than the whole thickness of the guide block 6; the housing 7 is provided with a placement groove 74 for placing a part of the wire 4, and a protection plate 75 is provided above the placement groove 74.

By adopting the technical scheme, in the utility model, the end part of the wire 4 extends out of the shell 7, so that the wire is convenient to connect. The main utility model is to improve the structure of the movable contact 11 bracket and to arrange the guide block 6 structure, thereby realizing the opening and closing of the micro switch 5. Specifically, when the moving contact 11 is opened, the abutting portion 61 of the guide block 6 abuts against and turns on the micro switch 5, and when the moving contact 11 is closed, the abutting portion 61 is separated from the micro switch 5, so that the micro switch 5 is opened. Wherein the movable resetting of the guide block 6 can be realized by providing a reset spring 64. The arrangement of the accommodating groove 71 on the shell 7 can realize the stable and accurate movement of the guide block 6 through the matching of the sliding block 62 and the accommodating groove 71. By providing the placement groove 74, good mounting positioning of the wire 4 can be achieved, and the arrangement of the protection plate 75 can play a certain role in protecting the wire 4. By setting the thickness of the abutment plate 65 to be smaller than the overall thickness of the guide block 6, the abutment post 15 can be abutted on the abutment plate 65 more rapidly, thereby achieving the purpose of rapid action of the guide block 6.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The circuit breaker comprises a moving contact operating mechanism (1), an electromagnetic release (2), a wire frame (3) and a wire (4) electrically connected with the electromagnetic release (2), wherein the moving contact operating mechanism (1) comprises a moving contact (11), a jump buckle (12), a moving contact (11) support and a lock catch (14), and is characterized in that an abutting column (15) is arranged on the moving contact (11) support, a conductive wire (31) is electrically connected to the wire frame (3), a micro switch (5) electrically connected with the conductive wire (31) is arranged on one side of the wire frame (3), a guide block (6) is arranged on one side, close to the moving contact (11), of the micro switch (5), one end of the guide block (6) is abutted to the abutting column (15), the other end of the guide block (6) is provided with an abutting part (61) which is abutted to or separated from the micro switch (5), and when the moving contact (11) is disconnected, the abutting part (61) is abutted to the micro switch (5); when the movable contact (11) is closed, the contact portion (61) is separated from the microswitch (5).

2. The circuit breaker according to claim 1, characterized in that a housing groove (71) is provided on a casing (7) of the circuit breaker, a slide block (62) is provided on one side of the guide block (6) close to the housing groove (71), the slide block (62) is slidably provided in the housing groove (71), a mounting column (63) is provided on the slide block (62), a return spring (64) is sleeved on the mounting column (63), one end of the return spring (64) is abutted to the side surface of the housing groove (71), and the other end of the return spring (64) is abutted to the slide block (62).

3. A circuit breaker according to claim 2, characterized in that the housing (7) is provided with a mounting part (72) on one side of the receiving groove (71), and that the mounting part (72) is provided with a positioning column (73) for positioning the microswitch (5).

4. A circuit breaker according to claim 1, 2 or 3, characterized in that the guide block (6) is integrally formed with an abutment plate (65) in abutment with the abutment post (15), the thickness of the abutment plate (65) being smaller than the overall thickness of the guide block (6).

5. A circuit breaker according to claim 4, characterized in that the housing (7) is provided with a placement groove (74) for placing part of the conductor (4), and that a protection plate (75) is provided above the placement groove (74).