CN209843975U - An equipotential grounding box for a weak electric room in a building - Google Patents

Abstract

The utility model provides an equipotential grounding box between weak electric rooms in a building, which comprises a grounding box body, and a grounding terminal board, an equipotential connector and a grounding body which are arranged in the grounding box body, wherein the grounding terminal board is insulated from the grounding box body; the equipotential connector is connected with the grounding terminal board and the grounding body through wires respectively. The utility model discloses an equipotential grounding box between light current in building, simple structure, stability, production and processing are convenient, and simple to operate can adapt to the equipotential grounding box of various different equipotential connector producers, can protect the safety of information system and device when the thunderbolt.

Description

An equipotential grounding box for a weak electric room in a building

technical field

The utility model relates to an equipotential grounding box for a weak electric room in a civil building and an industrial building, and belongs to the technical field of electrical installation and grounding.

Background technique

At present, there is little difference between the equipotential grounding box in the weak current room and the general grounding terminal box, which cannot meet the single-point grounding requirements of the building information system. In particular, the existing equipotential grounding box in the weak current room cannot ensure the safety of the information system and equipment in the building when it is struck by lightning.

Utility model content

The purpose of the utility model is to provide an equipotential grounding box between weak currents in a building, which is used to protect the information system and equipment in the building from lightning damage, simplify the construction process, and facilitate the connection of the grounding trunk line and the grounding body. sex.

In order to achieve the above purpose and other related purposes, the utility model provides an equipotential grounding box for a weak current room in a building, including a grounding box, a grounding terminal board, an equipotential connector and a grounding body arranged in the grounding box, The grounding terminal board is insulated from the grounding box; the equipotential connector is respectively connected to the grounding terminal board and the grounding body through wires.

Preferably, the grounding box is made of 3mm thick 304 stainless steel.

Preferably, the grounding terminal board is made of 400x40x4 red copper plate, and the grounding body is made of flat steel.

Preferably, an insulating porcelain bottle is also included, and the insulating porcelain bottle is installed between the grounding terminal board and the grounding box to ensure the insulation between the grounding terminal board and the grounding box.

Preferably, the grounding body is reliably electrically connected to the nearby grounding body or the structural reinforcement in the building, so as to ensure local equipotential formation in the event of a lightning strike.

Preferably, the grounding terminal board is reliably electrically connected to the grounding terminal board in the equipotential grounding box of the weak current room in other buildings or the general equipotential grounding terminal board.

Preferably, at least two cable pile joints are respectively arranged on the ground terminal board and the ground body.

Preferably, the bottom of the junction box is provided with ventilation holes, and the top is provided with grounding cable entry and exit holes.

Preferably, the equipotential connector is respectively connected to the ground terminal board and the ground body through a BJY-1x50 cable.

To sum up, the utility model provides the equipotential grounding box for the weak current room in the building. The grounding terminal board, the equipotential connector and the grounding body are installed in the grounding box. The terminal board and the grounding body are connected to the potential connector during a lightning strike, and the information grounding is electrically connected to the metal near the equipotential connection box to form a local equipotential to ensure the safety of the information system and equipment; in the non-lightning strike state, The equipotential connector is not conducting, and the grounding of the information system forms a single-point grounding through the grounding trunk line to ensure the reliable operation of the information system. An insulating porcelain bottle is installed between the grounding terminal board and the grounding box to ensure insulation between the grounding terminal board and the grounding box. At the same time, the equipotential grounding box for the weak current room in the building is simple and stable in structure, convenient in production and processing, convenient in installation, versatile and reusable.

Description of drawings

Fig. 1 is the front view of the equipotential grounding box of the weak current room in the building according to the first embodiment of the utility model;

Fig. 2 is the plan view diagram of the equipotential grounding box between the weak electric room in the building shown in Fig. 1,

Fig. 3 is the side view of the equipotential grounding box between the weak electric room in the building shown in Fig. 1;

Among them, 1-grounding box, 2-grounding terminal board, 3-equipotential connector, 4-insulating porcelain bottle, 5-grounding body, 6-cable pile connector, 7-grounding cable, 8-installation bracket, 9- Nut, 10-drop hole.

Detailed ways

The core idea of the utility model is to provide an equipotential grounding box for the weak electric room in the building that can protect the information system and equipment in the building when encountering lightning strikes. At the same time, the equipotential grounding box for the weak electric room in the building can simplify the construction process. It is convenient to connect the grounding trunk line and the grounding body, and has versatility.

In order to realize the above ideas, the utility model provides an equipotential grounding box for the weak current room in a building, in which a grounding terminal board, an equipotential connector and a grounding body are installed in the grounding box, and the equipotential connectors are respectively connected to the grounding boxes through wires. The grounding terminal board and the grounding body, the potential connector conducts during a lightning strike, and the information grounding is electrically connected to the metal near the equipotential connection box to form a local equipotential, ensuring the safety of the information system and equipment.

In order to make the purpose, advantages and characteristics of the present utility model clearer, below in conjunction with accompanying drawing 1～3, the equipotential grounding box of weak electric room in the building that the present utility model proposes is described in further detail. It should be noted that all the drawings are in very simplified form and use inaccurate scales, which are only used to facilitate and clearly illustrate the purpose of the embodiment of the present utility model.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right" etc. is based on the orientation or position shown in the drawings The relationship is only for the convenience of describing the utility model and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the utility model.

Embodiment one

As shown in FIG. 1 , it is a front view of the equipotential grounding box for the weak electric room in the building according to Embodiment 1 of the present utility model. The equipotential grounding box between the weak electricity in the building provided by the utility model includes a grounding box 1 and a grounding terminal board 2 arranged in the grounding box 1, an equipotential connector 3 and a grounding body 5, and the grounding terminal The board 2 is insulated from the grounding box 1; the equipotential connector 3 is respectively connected to the grounding terminal board 2 and the grounding body 5 through wires.

Wherein, the grounding box 1 can be made of 3mm thick 304 stainless steel. As shown in FIG. 2 , the top view of the equipotential grounding box in the weak current room in the building, the top of the grounding box 1 is provided with five drop holes 10 for the entry and exit of grounding cables. Of course, the number of drop holes 10 can be one or more, and can be adjusted according to actual needs. In addition, ventilation holes may also be provided at the bottom of the junction box body 1 for air circulation.

The ground terminal board 2 can be made of 400x40x4 red copper plate, installed on the insulating porcelain bottle 4, and the insulation between the ground terminal board 2 and the grounding box 1 is realized through the insulating porcelain bottle 4 . As shown in Figure 3, its specific installation structure is: in the grounding box body 1 relative to the inner side wall of the switch door, a mounting bracket 8 parallel to the inner side wall is provided, and one end of the insulating porcelain bottle 4 is vertically installed on the mounting bracket 8, The other end is connected to the grounding terminal board 2 through a nut 9 to ensure the insulation between the grounding terminal board 2 and the grounding box 1 . Preferably, the number of insulating porcelain bottles 4 is two or more, so as to make the connection of the grounding terminal board 2 more stable.

The equipotential connector 3 is installed in the grounding box 1, and is respectively connected to the grounding body 5 and the grounding terminal board 2 through the grounding cable 7. The specification of the grounding cable 7 can be BJY-1x50; the grounding body 5 can be It is made of 4x25 hot-dip galvanized flat steel, and it is grounded near the grounding box 1, for example, it can be grounded with the steel bar of the floor. When encountering a lightning strike, the equipotential connector 3 conducts, and the grounding terminal board 2 conducts and grounds with the grounding body 5 through the equipotential connector 3 to form a local equipotential, ensuring the integrity of the information system and equipment connected to the grounding terminal board 2. Safety: In the non-lightning state, the equipotential connector 3 is not conducting, and the information system is grounded to form a single-point ground through the grounding trunk line to ensure the reliable operation of the information system.

The grounding terminal board 2 and the grounding body 5 are respectively provided with several cable pile joints 6, and the grounding terminal board 2 is provided with ①～ No. cable pile connector, the grounding body 5 is arranged in sequence from left to right No. cable joints, of which, ①, ②, ③, The pipe diameters of No. 1 cable pile joints are the same, and the pipe diameters of other cable pile joints are the same, which is convenient for the wire connection of the building information system.

On the grounding terminal board 2, cable pile connector ① is used to connect to the general equipotential grounding terminal board, cable pile connector ② is used to connect to the grounding terminal board on other floors, cable pile connector ③ is used to connect to the equipotential connector, ④ ~ No. cable pile joints are reserved for connecting information equipment in buildings. on the ground body 5, The No. cable pile joint is used to connect the structural steel bars in the nearby buildings and then ground, No. cable stud joints are used to connect equipotential connectors.

The utility model provides an equipotential grounding box for a weak electric room in a building, and through setting an equipotential connector, the safety of the information system and the device can be protected when lightning strikes. At the same time, the structure in the grounding box is simple and practical, which reduces the construction process and facilitates the connection of the grounding trunk line and the grounding body, and has versatility.

The foregoing is only a preferred embodiment of the utility model, and it should be pointed out that for those skilled in the art, some improvements and modifications can be made without departing from the principle of the utility model. It should be regarded as the protection scope of the present utility model.

Claims (9)

1. The equipotential grounding box with the weak electric room in the building is characterized by comprising a grounding box body, and a grounding terminal board, an equipotential connector and a grounding body which are arranged in the grounding box body, wherein the grounding terminal board is insulated from the grounding box body; the equipotential connector is connected with the grounding terminal board and the grounding body through wires respectively.

2. An equipotential earth box with weak electric fields in a building according to claim 1, wherein said earth box is made of 304 stainless steel with a thickness of 3 mm.

3. The equipotential grounding box of weak electric field in building of claim 1, wherein said grounding terminal board is made of 400x40x4 copper plate and said grounding body is made of flat steel.

4. A weak electric equipotential ground box in a building according to claim 1 further including an insulator installed between the ground terminal board and the ground box to ensure insulation between the ground terminal board and the ground box.

5. The equipotential grounding box of weak current in building according to claim 1, wherein the grounding body is electrically connected to nearby grounding bodies or structural steel bars in building reliably, ensuring local equipotential in case of lightning strike.

6. The equipotential grounding box of weak electric field in building according to claim 1, wherein the grounding terminal plate is electrically connected to the grounding terminal plate or the total equipotential grounding terminal plate in other equipotential grounding box of weak electric field in building.

7. An equipotential grounding box with weak electric fields in building according to claim 1, wherein at least two cable stub connectors are respectively provided on said grounding terminal plate and said grounding body.

8. A weak electric equipotential grounding box in building according to claim 1 in which the bottom of the grounding box is equipped with air holes and the top is equipped with grounding cable access holes.

9. The equipotential grounding box of a weak electric room in a building according to claim 1, wherein the equipotential connector connects the ground terminal board and the grounding body by BJY-1x50 cables, respectively.