CN203326380U - Grounding device of distribution box - Google Patents

Abstract

The utility model discloses a grounding device of a distribution box. The grounding device comprises an iron bolt (2) and a copper binding post (4), wherein the bolt (2) is welded at the inner side of a distribution-box door (3), the binding post (4) is connected with a lead of a grounding copper bar in the distribution box, one end of the binding post (4) is fixedly connected with the lead of the copper bar, and the other end of the binding post (4) is sleeved on the bolt (2). According to the above structure, grounding resistance is not increased while the structure is simplified, thereby saving material of copper wires and further reducing the cost.

Description

Grounding device for distribution box

technical field

The utility model relates to the field of distribution boxes, in particular to a grounding device for a distribution box.

Background technique

The distribution box is a complete set of devices for centralized installation of switches, meters and other equipment. It can reasonably distribute electric energy and facilitate the opening and closing operation of the circuit. It has a high level of safety protection and can intuitively display the conduction state of the circuit. It is easy to manage, and it is also easy to repair when a circuit failure occurs. In order to ensure the safe use of the distribution box, a grounding device is usually installed inside the distribution box at present. The grounding device of the prior art generally welds an iron bolt on the inside of the box door, and the copper wire drawn from the grounding copper bar The wire is wound and fixed on the bolt to achieve the purpose of grounding and preventing leakage. However, the grounding device of the distribution box with this structure has the following problems: in order to ensure the fixity between the bolt and the grounding copper bar, a large number of copper wires have to be wound, so on the one hand, the grounding device connected The grounding resistance increases, and on the other hand, too much material is wasted, which increases the cost.

Utility model content

The technical problem to be solved by the utility model is to provide a grounding device for a distribution box that avoids the phenomenon of increased grounding resistance, saves materials and reduces costs.

In order to solve the above technical problems, the utility model provides a distribution box grounding device, including iron bolts welded on the inner side of the distribution box door, and copper wires are connected to the leads of the grounding copper bars in the distribution box. Terminal, one end of the terminal is fixedly connected to the lead wire of the grounding copper bar, and the other end is sleeved on the bolt.

The connecting terminal is also fastened on the bolt through a nut made of insulating material.

After adopting the above structure, compared with the prior art, the utility model has the following advantages: since the lead wire of the grounding copper bar in the distribution box is only connected to the bolt through a terminal, on the one hand, the grounding resistance will not increase On the other hand, it also makes the structure simple, saves copper wire materials, thereby reducing costs; in addition, the nuts and bolts made of insulating materials are used to fasten the terminals outside the terminals, which further ensures the firmness of the connection between the terminals and the bolts .

Description of drawings

Fig. 1 is a structural schematic diagram of the grounding device of the distribution box of the present invention.

Among them: 1. Nut; 2. Bolt; 3. Distribution box door; 4. Terminal.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

As can be seen from the structural diagram of the grounding device of the utility model distribution box shown in Fig. 1, it includes the iron bolt 2 welded on the inner side of the distribution box door 3, and the lead wire of the grounding copper bar in the distribution box A copper connection terminal 4 is connected, one end of the connection terminal 4 is fixedly connected to the lead wire of the grounding copper bar, and the other end is sleeved on the bolt 2 .

The connecting terminal 4 is also fastened on the bolt 2 through the nut 1 made of insulating material.

Claims (2)

1. A grounding device for a distribution box, including an iron bolt (2) welded on the inner side of the distribution box door (3), characterized in that: the lead of the grounding copper bar in the distribution box is connected with Copper terminal (4), one end of the terminal (4) is fixedly connected to the lead wire of the grounding copper bar, and the other end is sleeved on the bolt (2). 2. The grounding device of the distribution box according to claim 1, characterized in that: the terminal (4) is also fastened to the bolt (2) by a nut (1) made of insulating material.

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