CN219329227U

CN219329227U - Wiring device of circuit breaker

Info

Publication number: CN219329227U
Application number: CN202223538128.2U
Authority: CN
Inventors: 郑琼琼
Original assignee: Norxun Electric Co ltd
Current assignee: Norxun Electric Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-07-11
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a wiring device of a circuit breaker, which comprises a circuit breaker main body, a wiring groove and a tensile wiring structure. According to the utility model, the anti-pulling wiring structure is arranged in the wiring groove, when the wiring screw is screwed, the clamping groove can be buckled on the surface of the wire sleeve, so that the wire cannot be separated from the opening of the side face of the wire sleeve, the clamping groove is in a V shape, the wire sleeve can be forced to be tightened, the wire is further fastened in the wire sleeve, when the wire is pulled, the acting force can not directly act on the connection part of the wire, the connection strength of the wire and the breaker main body is further improved, and the rubber bushing is arranged in the through hole, so that the friction force between the wire and the through hole can be increased, a certain acting force can be resisted, and the stress at the connection part of the wire is reduced.

Description

Wiring device of circuit breaker

Technical Field

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

Background

The circuit breaker is a switching device capable of closing, carrying and breaking a current under normal loop conditions and closing, carrying and breaking a current under abnormal loop conditions within a prescribed time, and is used for distributing electric energy and protecting a power line, a motor and the like, and has been widely used.

Chinese patent: connection terminal and circuit breaker of CN201721480831.9 circuit breaker, including the circuit breaker wiring board and be fixed in the termination on the circuit breaker wiring board, characteristics: the wiring device comprises a wiring terminal and an insulating terminal cover, wherein the wiring terminal is used for connecting a circuit breaker wiring board and a cable, and a wiring screw used for pressing the cable is arranged on the wiring terminal; the insulating terminal cover is shaped like a parallelepiped, a cavity for passing the terminal screw is formed in the top wall of the insulating terminal cover, a terminal mounting cavity for accommodating the terminal is formed in the middle of the insulating terminal cover, a protrusion for passing the cable is formed in the rear wall of the insulating terminal cover, and when the wiring device is fixed on the circuit breaker wiring board, the protrusion extends along the length direction of the circuit breaker housing and protrudes out of the housing. The circuit breaker comprises the wiring terminal. The installation labour saving and time saving, high-efficient convenient, the production is used more economically, can be used to wireless nose cable's quick wiring to interphase electrical insulation intensity has been strengthened.

The structure of the circuit breaker in the above-mentioned patent and prior art usually comprises two sets of wiring boards and a wiring screw, put into the wiring board with the wire core during operation, screw up the wiring screw again, make the wire core press from both sides and fix between the wiring board, can accomplish wiring operation, but the wire only relies on the clamping force between the wiring board to fix, mechanical strength is general, and the wiring department of wire lacks corresponding safeguard measure, if the wire atress, the effort can directly transmit on the wiring department, the wiring department is easy to cause to become flexible, the area of contact that leads to the fact the wire core after the wiring department becomes flexible is easy to lead to the reduction of wiring board, cause trouble such as contact failure, consequently, need design a safeguard measure to wire junction.

Disclosure of Invention

Accordingly, in order to solve the above-mentioned disadvantages, the present utility model provides a wiring device of a circuit breaker.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: a wiring device of a circuit breaker comprises a circuit breaker main body, a wiring groove and a tensile wiring structure, wherein the top end surface and the bottom of the circuit breaker main body

The terminal surface has all been seted up the wiring groove, the wiring inslot is provided with the tensile wiring structure of pulling, the tensile wiring structure of pulling is including deciding wiring board, support, line cover, binding screw, moving wiring board, cassette and double-layered groove, the end wall is equipped with decides the wiring board behind the wiring groove, it is equipped with the support to decide the wiring board top surface, the terminal surface is equipped with the line cover before the support, it is provided with the binding screw to decide the wiring board front side, the binding screw surface cover is equipped with moves the wiring board, it is equipped with the cassette to move the wiring board top, the cassette dorsal part is equipped with double-layered groove, it all carries out the electricity with the circuit breaker main part to decide wiring board, binding screw and move the wiring board and be connected.

Preferably, when the distance between the fixed wiring board and the movable wiring board reaches the minimum value, the clamping groove is buckled on the outer side of the wire sleeve.

Preferably, the clamping groove corresponds to the position of the side opening of the wire sleeve, and the height of the clamping groove is larger than that of the wire sleeve.

Preferably, the cross section of the clamping groove is V-shaped, connecting parts are arranged at the left side and the right side of the wire sleeve, and the connecting parts have toughness.

Preferably, through holes are formed in the upper end of the support in a front-back penetrating mode, and the through holes are located right above the wire sleeve.

Preferably, a rubber bushing is arranged in the through hole, and the rubber bushing corresponds to the through hole in size.

Preferably, the left and right sides of the outer surface of the wire sleeve are respectively provided with a convex part, and the side wall of the inner part of the clamping groove is provided with a notch part.

The utility model has the beneficial effects that:

according to the utility model, the anti-pulling wiring structure is arranged in the wiring groove, when the wiring screw is screwed, the clamping groove can be buckled on the surface of the wire sleeve, so that the wire cannot be separated from the opening on the side surface of the wire sleeve, the clamping groove is V-shaped, the wire sleeve can be forced to be tightened, the wire is further fastened in the wire sleeve, and when the wire is pulled, the acting force can not directly act on the connection part of the wire, so that the connection strength of the wire and the breaker main body is further improved.

According to the utility model, the rubber bushing is arranged in the through hole, so that the friction force between the wire and the through hole can be increased, and a certain acting force can be resisted, so that the stress at the wire connection position of the wire is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the support and cartridge of FIG. 1 with the support and cartridge removed;

FIG. 3 is a schematic diagram of the structure of the pull-and-wire-pulling-resistant wire of the present utility model;

FIG. 4 is a schematic view of the rubber bushing of the present utility model shown removed;

FIG. 5 is a schematic top view of the natural state of the sleeve of the present utility model;

fig. 6 is a schematic top view of the wire loop takeup state of the present utility model.

Wherein: the circuit breaker comprises a circuit breaker main body-1, a wiring groove-2, a tensile wiring structure-3, a fixed wiring board-31, a support-32, a wire sleeve-33, a protruding part-331, a wiring screw-34, a movable wiring board-35, a clamping seat-36, a clamping groove-37, a notch-371, a through hole-38 and a rubber bushing-381.

Detailed Description

In order to further explain the technical scheme of the utility model, the following is explained in detail through specific examples.

Referring to fig. 1, the utility model provides a wiring device of a circuit breaker, which comprises a circuit breaker main body 1, a wiring groove 2 and a tensile wiring structure 3, wherein the top end surface and the bottom end surface of the circuit breaker main body 1 are both provided with the wiring groove 2, and the tensile wiring structure 3 is arranged in the wiring groove 2.

Referring to fig. 2-6, the pull-and-tear resistant wiring structure 3 of the present utility model includes a fixed wiring board 31, a support 32, a wire sleeve 33, a wiring screw 34, a movable wiring board 35, a clamping seat 36 and a clamping groove 37, wherein the fixed wiring board 31 is fixed on the rear end wall of the wiring groove 2, the support 32 is adhered and fixed on the top end surface of the fixed wiring board 31, the wire sleeve 33 is adhered and arranged in the middle of the front end surface of the support 32, the wiring screw 34 is connected with the front side of the fixed wiring board 31 in a threaded manner, the movable wiring board 35 with the same size as the fixed wiring board 31 is sleeved and rotated on the surface of the wiring screw 34, the wiring screw 34 and the movable wiring board 35 are both positioned inside the wiring groove 2, the top of the movable wiring board 35 is adhered and provided with an L-shaped clamping seat 36, the clamping groove 37 is arranged in the middle of the back side of the clamping seat 36, and the fixed wiring board 31, the wiring screw 34 and the movable wiring board 35 are all electrically connected with the circuit breaker main body 1.

Further, when the distance between the fixed connection board 31 and the movable connection board 35 reaches the minimum value, the clamping groove 37 is buckled on the outer side of the wire sleeve 33, and when the fixed connection board 31 and the movable connection board 35 clamp the wires, the clamping groove 37 can be buckled with the wire sleeve 33.

Further, the clamping groove 37 corresponds to the position of the side opening of the wire sleeve 33, and the height of the clamping groove 37 is larger than that of the wire sleeve 33, so that the clamping groove 37 can seal the opening after being buckled on the outer side of the wire sleeve 33, and the wire cannot be separated from the opening on the wire sleeve 33.

Further, the clip groove 37 has a V-shaped cross section, and the wire sleeve 33 has connecting portions on both sides thereof, and the connecting portions have toughness, so that the clip groove 37 can force the wire sleeve 33 to be tightened when the clip groove 37 is fastened to the surface of the wire sleeve 33, thereby clamping the wire sleeve 33 to the wire.

Further, the upper end of the support 32 is provided with a through hole 38 in a front-back penetrating manner, and the through hole 38 is located right above the wire sleeve 33, and the through hole 38 is used for penetrating a wire, so that the direction of the acting force on the wire can be changed, and the wire is more difficult to break loose from the wire sleeve 33.

Further, a rubber bushing 381 is disposed in the through hole 38, and the rubber bushing 381 corresponds to the through hole 38 in size, and the rubber bushing 381 can increase the friction between the wire and the through hole 38, and resist a certain force to reduce the stress at the wire connection point of the wire.

Further, the left and right sides of the outer surface of the wire sleeve 33 are integrally provided with the protruding portion 331, the side wall of the inside of the clamping groove 37 is provided with a notch portion 371 for matching with the protruding portion 331, and when the clamping groove 37 is fastened on the surface of the wire sleeve 33, the protruding portion 331 and the notch portion 371 can be fastened to each other, so that the wire sleeve 33 can be kept in a fastened state.

Further, in this case, the support 32 and the holder 36 are made of insulating materials, so as to improve safety.

The working principle is as follows:

first, the breaker body 1 is first installed into a distribution box so as to access the breaker body 1 into a line.

Secondly, in order to make the breaker main body 1 perform the function of a switching loop, a circuit needs to be connected into the wiring groove 2 at the top of the breaker main body 1, then the circuit needs to be connected out of the wiring groove 2 at the bottom of the breaker main body 1, when wiring operation is performed, firstly, the wiring screw 34 is unscrewed, the distance between the movable wiring board 35 and the fixed wiring board 31 is increased, meanwhile, the distance between the clamping seat 36 and the support 32 is increased, the clamping groove 37 is ensured to be separated from the surface of the wire sleeve 33, when a wire is installed, the wire firstly passes through the through hole 38 from back to front, then is buckled into the wire sleeve 33, then the wire core of the wire is put between the movable wiring board 35 and the fixed wiring board 31, and then the wiring screw 34 is screwed, so that the wire core of the wire is pressed between the movable wiring board 35 and the fixed wiring board 31, and the breaker main body 1 are electrically connected, and the wiring operation is completed.

Thirdly, in the wiring process, when the wiring screw 34 is screwed down, the distance between the clamping seat 36 and the support 32 is reduced, at the moment, the clamping groove 37 is buckled on the surface of the wire sleeve 33 until the protruding part 331 is buckled with the notch 371, so that the connection between the wire sleeve 33 and the clamping groove 37 is more fastened, a wire cannot be separated from an opening on the side face of the wire sleeve 33, the clamping groove 37 is V-shaped, the wire sleeve 33 can be forced to be tightened, the wire is further fastened in the wire sleeve 33, when the wire is pulled, acting force cannot be directly acted on the connection part of the wire, the connection strength of the wire and the breaker main body 1 is further improved, the tightness state of the wire sleeve 33 is regulated by the wiring screw 34, the wire sleeve 33 is loosened when the wiring screw 34 is unscrewed, the wire sleeve 33 is tightened, and the dismounting operation of the wire is fast enough.

Fourth, by providing the rubber bushing 381 in the through hole 38, the rubber bushing 381 can increase the friction between the wire and the through hole 38, and can resist a certain force to reduce the stress at the wire connection point of the wire.

The utility model provides a wiring device of a circuit breaker, wherein a wire pulling-resistant wiring structure 3 is arranged in a wiring groove 2, when a wiring screw 34 is screwed, a clamping groove 37 can be buckled on the surface of a wire sleeve 33, so that a wire cannot be separated from an opening on the side surface of the wire sleeve 33, the clamping groove 37 is V-shaped, the wire sleeve 33 can be forced to be tightened, the wire is further fastened in the wire sleeve 33, when the wire is pulled, acting force cannot directly act on the connecting position of the wire, the connection strength of the wire and the circuit breaker main body 1 is further improved, and by arranging a rubber bushing 381 in a through hole 38, the friction force between the wire and the through hole 38 can be increased, and a certain acting force can be resisted, so that the stress at the wire connecting position of the wire is reduced.

The foregoing is merely a preferred example of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The wiring device of the circuit breaker comprises a circuit breaker main body (1) and a wiring groove (2), wherein the wiring groove (2) is formed in the top end face and the bottom end face of the circuit breaker main body (1);

the method is characterized in that: still including anti wiring structure (3) of pulling, be provided with tensile wiring structure (3) of pulling in wiring groove (2), tensile wiring structure (3) of pulling is including deciding wiring board (31), support (32), line cover (33), wiring screw (34), move wiring board (35), cassette (36) and double-layered groove (37), the end wall is equipped with decides wiring board (31) behind wiring groove (2), it is equipped with support (32) to decide wiring board (31) top surface, terminal surface is equipped with line cover (33) before support (32), it is provided with wiring screw (34) to decide wiring board (31) front side, wiring screw (34) surface cover is equipped with moves wiring board (35), it is equipped with cassette (36) to move wiring board (35) top, cassette (36) dorsal part is equipped with double-layered groove (37), it all carries out the electricity with circuit breaker main part (1) to decide wiring board (31), wiring screw (34) and move wiring board (35).

2. The circuit breaker wiring device of claim 1, wherein: when the distance between the fixed wiring board (31) and the movable wiring board (35) reaches the minimum value, the clamping groove (37) is buckled on the outer side of the wire sleeve (33).

3. The circuit breaker wiring device of claim 1, wherein: the clamping groove (37) corresponds to the position of the side opening of the wire sleeve (33), and the height of the clamping groove (37) is larger than that of the wire sleeve (33).

4. The circuit breaker wiring device of claim 1, wherein: the cross section of the clamping groove (37) is V-shaped, connecting parts are arranged on the left side and the right side of the wire sleeve (33), and the connecting parts have toughness.

5. The circuit breaker wiring device of claim 1, wherein: the upper end of the support (32) is provided with a through hole (38) in a front-back penetrating way, and the through hole (38) is positioned right above the wire sleeve (33).

6. The circuit breaker wiring device of claim 5, wherein: a rubber bushing (381) is arranged in the through hole (38), and the rubber bushing (381) corresponds to the through hole (38) in size.

7. The circuit breaker wiring device of claim 1, wherein: the left side and the right side of the outer surface of the wire sleeve (33) are respectively provided with a protruding part (331), and the inner side wall of the clamping groove (37) is provided with a notch part (371).