CN205049630U - Joint terminal box of modularization combination formula three -phase electric energy measurement - Google Patents

Abstract

The utility model discloses a modular combined three-phase electric energy metering joint junction box, which comprises three current and voltage connection modules, a neutral wire connection module and a pair of positioning blocks, which are slidably installed on the guide rail, and the current and voltage connection module The neutral wire connection module is fixed by the pair of positioning blocks. Each current and voltage connection module has a voltage plug and a pair of current plugs. The neutral wire plug and each voltage plug are placed in the waist-shaped holes opened horizontally by the respective modules. In the middle, the top of the neutral line wiring module corresponding to each neutral line insertion post and the top of the current and voltage connection module corresponding to each voltage insertion post have vertical through holes for the adjustment screw to pass through, and the adjustment screw is respectively connected to the neutral line. The line inserts and voltage inserts are threaded. By turning the adjustment screw, the voltage inserts and the neutral line inserts can move up and down in their respective waist-shaped holes, and the neutral line inserts and the voltage inserts can be flexibly adjusted. Therefore, the utility model can be plugged smoothly with all three-phase electric energy meters.

Description

Modular combined three-phase electric energy metering combined junction box

【Technical field】

The utility model relates to a three-phase electric energy metering combined junction box, in particular to a modular combined three-phase electric energy metering combined junction box.

【Background technique】

The existing three-phase electric energy metering combined junction box has 3 voltage inserts and 3 pairs of 6 current inserts, all of which are installed in one box body. Because the voltage inserts of three-phase electric energy meters with current transformers of different manufacturers and models There is a problem that the height and position of the hole and the neutral line jack are slightly different, but the height and position of the voltage post and the neutral line post in the integrated three-phase electric energy metering combined junction box are fixed and consistent, and the height cannot be adjusted. The existing combined junction box for three-phase electric energy metering has poor adaptability to three-phase electric energy meters, and cannot realize hole-to-hole connection with all three-phase electric energy meters.

In view of this, it is necessary to improve the existing integrated three-phase electric energy metering joint junction box.

【Content of utility model】

The purpose of the utility model is to provide a modular combined three-phase electric energy metering joint junction box, which can flexibly adjust the height of the neutral wire inserting post and each voltage inserting post.

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

A modular combined three-phase electric energy metering joint junction box, comprising three current and voltage connection modules, a neutral wire connection module, a pair of positioning blocks and a guide rail, the current and voltage connection modules and the neutral wire connection module can be It is slidably installed on the guide rail and fixed by the pair of positioning blocks. Each current and voltage wiring module has a voltage plug and a pair of current plugs with fixed heights. The improvement is that each voltage plug is placed on each In the waist-shaped hole opened horizontally on the current and voltage wiring module, each voltage plug corresponds to the through hole vertically opened on the top of the current and voltage wiring module for the adjustment screw to pass through. The adjustment screw is threaded with the voltage plug; the neutral wire plug Placed in the waist-shaped hole opened horizontally on the neutral line terminal module, the neutral line post corresponds to the through hole vertically opened on the top of the neutral line terminal module for the adjustment screw to pass through, and the adjustment screw is threaded with the neutral line post connect.

The utility model's modular combined three-phase electric energy metering junction box also includes three sliding current shorting pieces, and each sliding current shorting piece is installed on each current and voltage wiring module. The movable current shorting pieces are all connected with a pair of current insertion posts of the corresponding current and voltage wiring modules.

After adopting the above technical scheme, the utility model has the following advantages and beneficial effects:

By turning the adjusting screw, the voltage post and the neutral line post can move up and down in their respective waist-shaped holes. When the adjustment screw is turned downward, the voltage post and the neutral line post move upward, and when the adjustment screw is turned upward, the voltage post and the neutral line post move downward, thereby flexibly adjusting the neutral line. The purpose of the high and low positions of the neutral line post and each voltage post, because the voltage post and the neutral line post are all adjustable in height, so the utility model has strong adaptability to all three-phase electric energy meters, and the three voltage Both the post and a neutral line post can be smoothly plugged into the socket of the three-phase electric energy meter.

【Description of drawings】

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a perspective view of the current and voltage wiring module of the present invention;

Fig. 3 is a three-dimensional view of the neutral wiring module of the present invention;

Fig. 4 is a three-dimensional view of the guide rail of the present utility model;

Fig. 5 is a schematic diagram of the assembly structure of the utility model.

【detailed description】

See also shown in Fig. 1,2,3,4,5, be the preferred embodiment of utility model.

A modular combined three-phase electric energy metering joint junction box, including three current and voltage connection modules 1, a neutral line connection module 2, a pair of positioning blocks 3 and a guide rail 4, the current and voltage connection module 1, the middle The linear wiring module 2 is slidably installed on the guide rail 4, and is fixed by the pair of positioning blocks 3. Each current and voltage wiring module 1 has a voltage post 11 and a pair of current post 12 with fixed heights. The improvement is that each voltage post 11 is placed in the waist-shaped hole 10 opened horizontally in each current and voltage connection module 1, and the through hole vertically opened on the top of each voltage post 11 corresponding to the current and voltage connection module 1 is used for the adjustment screw S1 to pass through. The adjustment screw S1 is threadedly connected with the voltage post 11; the neutral line post 21 is placed in the waist-shaped hole 20 opened horizontally in the neutral line connection module 2, and the neutral line post 21 corresponds to the neutral line connection The through hole vertically opened on the top of the module 2 is used for passing the adjusting screw S2, and the adjusting screw S2 is threadedly connected with the neutral line post.

When the positioning block 3 is fixed on the guide rail 4, the guide rail 4 can be pushed firmly by a pair of fastening screws 31 mounted on the positioning block 3 .

The end of a voltage post 11 of each current and voltage terminal module 1, the terminal of a pair of current post 12 of each current and voltage terminal module 1 are used to insert into the jack of the three-phase electric energy meter, and then tightened with screws (not shown).

The end of the neutral line post 21 of the neutral line connection module 2 is used to be inserted into the jack of the three-phase electric energy meter, and then tightened with screws (not shown).

The utility model's modular combined three-phase electric energy metering joint junction box also includes three sliding current shorting pieces 5, each sliding current shorting piece 5 is installed on each current and voltage wiring module 1, and when the meter is switched with electricity , the three sliding current shorting pieces 5 are all connected to a pair of current plug posts 12 of the corresponding current and voltage connection module 1 .

After the three slidable current short-connectors 5 are short-circuited, the three-phase watt-hour meter can be assembled, disassembled and replaced.

Claims (2)

1. a modularized combination type three-phase electric energy metering combined connection box, comprise three current/voltage Wiring modules, a neutral line Wiring module, a pair locating piece and a guide rail, described current/voltage Wiring module, neutral line Wiring module is installed on guide rail slippingly, and by this, locating piece is fixed, each current/voltage Wiring module has a voltage inserting column and the fixing electric current inserting column of a pair high and low position, it is characterized in that: each voltage inserting column is placed in the mounting hole that each current/voltage Wiring module level is offered, the through hole that on each voltage inserting column, this current/voltage Wiring module plan vertical corresponding is offered places for set screw, this set screw is threaded with voltage inserting column, neutral line inserting column is placed in the mounting hole that neutral line Wiring module level is offered, and the through hole that on neutral line inserting column, this neutral line Wiring module plan vertical corresponding is offered places for set screw, and this set screw is threaded with neutral line inserting column.

2. modularized combination type three-phase electric energy metering combined connection box according to claim 1, it is characterized in that: also comprise three sliding electric current short circuit sheets, each sliding electric current short circuit sheet is installed on each current/voltage Wiring module, charged change table operation time, three sliding electric current short circuit sheets all connect with a pair electric current inserting column of corresponding current/voltage Wiring module.