CN201307567Y - Wiring device of circuit breaker - Google Patents

Abstract

The utility model relates to the technical field of circuit breakers, in particular to a small-sized low-voltage circuit breaker, which comprises a shell, wherein internal components are arranged in the shell, the end surface of the shell is provided with a wire access end and a standard bus bar inserting groove, a wiring board is arranged in the shell corresponding to the position of the wire access end and the standard bus bar inserting groove, a wiring clamp is sleeved on the bottom plate of the wiring board, a top plate at the upper end of the wiring board is provided with a guide hole, the upper end of the wiring clamp is provided with a threaded hole corresponding to the guide hole, a wiring screw passes through the guide hole and the threaded hole to be in threaded connection with the wiring clamp, and; when in use, the wire can be connected, and the bus bar can be connected, thereby having a convenient wiring mode.

Description

A wiring device for a circuit breaker

Technical field:

The utility model relates to the technical field of wiring devices, in particular to a wiring device for a circuit breaker.

Background technique:

The wiring device is an important part of the circuit breaker, and its function is to connect the circuit breaker into the circuit. The wiring device of the circuit breaker generally includes a terminal board and a terminal screw. The terminal board is used to communicate with the wire, and the terminal screw is used to press the wire and the terminal board together to prevent the wire from falling off. The layout of the general wiring device in the circuit breaker housing is as follows: the side of the housing is provided with a wire access terminal or a standard bus bar connection slot, and a wiring terminal is provided at the position of the corresponding wire access terminal or standard bus bar connection slot in the housing. A terminal block is used to connect wires or standard bus bars to allow circuit breakers to be connected to circuits. However, most of the existing small low-voltage circuit breakers are provided with separate wire access terminals or standard busbar connection slots, and the corresponding wiring devices have fixed and single wiring methods, which brings inconvenience to users when choosing different wiring methods. .

Utility model content:

The purpose of the utility model is to provide a wiring device for a circuit breaker in view of the deficiencies in the prior art. The wiring device can not only connect wires, but also connect bus bars, and has a convenient wiring method.

In order to achieve the above object, the utility model adopts the following technical solutions:

A wiring device for a circuit breaker, including a terminal board, a terminal clip and a terminal screw, the upper part of the terminal board is bent into a "U" shape, and the upper end of the "U"-shaped bending part is a top plate for connecting busbars, The lower end is a base plate for connecting wires, the clamp is sleeved on the base plate, a guide hole is opened on the top plate, a threaded hole is opened corresponding to the guide hole at the upper end of the clamp, and threads are provided on the wall of the threaded hole. The wiring screw passes through the guide hole and the threaded hole, and is threadedly connected with the wiring clip.

Wherein, grooves are engraved on the lower end surface of the bottom plate, the inner surface of the lower end of the terminal clamp and the upper surface of the top plate.

The beneficial effects of the utility model are as follows: from the above scheme, it can be seen that when the wire needs to be connected, the wire is placed between the bottom plate and the wiring clamp, and the wiring screw is turned to drive the wiring clamp to lift upwards to clamp the wire so that the wire is close to the wire. Bottom plate; when busbars need to be connected, the standard busbars are clamped between the top plate and the wiring screws, and the wiring screws are tightened so that the busbars are close to the top plate; both wires and busbars can be connected, providing a convenient Wiring.

Description of drawings:

Accompanying drawing 1 is the structural representation of the utility model;

Accompanying drawing 2 is the structural representation of wiring board of the present utility model;

Accompanying drawing 3 is the utility model wiring clip structural representation;

Accompanying drawing 4 is the assembly diagram of the utility model in the circuit breaker.

Detailed ways:

The utility model will be further described below in conjunction with the accompanying drawings. As shown in accompanying drawings 1 to 3, a wiring device for a circuit breaker includes a terminal board 1, a terminal clamp 2 and a terminal screw 3. The upper part of the terminal board 1 is bent In a "U" shape, the upper end of the "U"-shaped bending part is a top plate 12 for connecting busbars, and the lower end is a bottom plate 11 for connecting wires. The terminal clip 2 is sleeved on the bottom plate 11. The top plate 12 is provided with a guide hole 13, and the corresponding guide hole 13 at the upper end of the terminal clamp 2 is provided with a threaded hole 21, and the wall of the threaded hole 21 is provided with threads, and the terminal screw 3 passes through the guide hole 13 and the threaded hole 21 to connect with the terminal clamp. 2 threaded connections.

See accompanying drawing 1 and accompanying drawing 4, when the utility model is used in the circuit breaker 4, if the wire is connected, the wire is placed between the bottom plate 11 and the connecting clamp 2, and the connecting screw 3 is turned to drive the connecting clamp 2 to lift upwards , so that the wire is clamped by the bottom plate 11 and the terminal clamp 2, so that the wire is close to the bottom plate 11; The row is close to the top plate 12; it can be connected to both the wire and the bus bar, providing a convenient wiring method.

Wherein, the lower end surface of the bottom plate 11, the inner surface of the lower end of the terminal clamp 2 and the upper end surface of the top plate 12 are all engraved with grooves 5, and these grooves 5 can increase the friction force of the surface, and the wires or bus bars are not easy to fall off after being connected.

The terminal board 1 is bent into a "U" shape, which increases the surface area of the terminal board 1, increases the heat dissipation area of the conductor during use, and facilitates the rapid conduction of heat generated by contact resistance to the surrounding air during wiring, reducing the need for wiring. end temperature rise.

The above is only a preferred embodiment of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the utility model patent application scope are all included in the utility model patent application scope .

Claims (2)

1. A wiring device for a circuit breaker, characterized in that it includes a terminal board (1), a terminal clamp (2) and a terminal screw (3), the upper part of the terminal board (1) is bent into a "U" shape, The upper end of the "U"-shaped bending part is a top plate (12) for connecting busbars, and the lower end is a bottom plate (11) for connecting wires, and the terminal clip (2) is sleeved on the bottom plate (11). The top plate (12) is provided with a guide hole (13), and the upper end of the wiring clamp (2) is provided with a threaded hole (21) corresponding to the guide hole (13), and the wall of the threaded hole (21) is provided with threads. The screw (3) passes through the guide hole (13) and the threaded hole (21), and is threadedly connected with the terminal clamp (2). 2. A circuit breaker wiring device according to claim 1, characterized in that grooves are engraved on the lower end surface of the bottom plate (11), the inner surface of the lower end of the terminal clamp (2) and the upper end surface of the top plate (12) ( 5).

Images