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Load switch module of three-phase electricity meter carrying wiring terminal row and current sampling devices

A three-phase electric energy meter and current sampling technology, which is applied in the direction of electromagnetic relays, electromagnetic relay details, circuits, etc., can solve problems such as large space occupation, high heating temperature, and difficult installation, so as to improve production efficiency, improve performance, Easy to install

Inactive Publication Date: 2013-10-30
张三军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But this product has defects: the current terminals of the three-phase electric energy meter are distributed symmetrically and evenly on the center line, while the lead-out terminals of the above-mentioned products are asymmetrical
In this way, the connection between the product and the current terminal of the three-phase electric energy meter is installed with screws, which may cause the installation to be loose, conduct heat, increase the temperature, make the installation difficult and the work efficiency is low; the auxiliary terminal cannot be directly connected to the circuit board, and it needs to be manually removed from the copper. After the components are wired and then soldered to the circuit board, it is easy to loosen and cause quality problems due to false soldering, and the installation is difficult and the work efficiency is low; the current sampling component must be separately molded and then installed with screws, which may lead to loose installation, conductive heat, and increased temperature , the installation is difficult and the work efficiency is low; the whole also takes up a lot of space, which does not meet the requirements and relevant standards of the current three-phase smart energy meter of the State Grid

Method used

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  • Load switch module of three-phase electricity meter carrying wiring terminal row and current sampling devices
  • Load switch module of three-phase electricity meter carrying wiring terminal row and current sampling devices
  • Load switch module of three-phase electricity meter carrying wiring terminal row and current sampling devices

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Embodiment 1

[0060] Such as figure 1 with figure 2 As shown, a conductive system of a three-phase electric energy meter load switch module with terminal blocks and current sampling devices in the present invention includes dynamic and static conductive components 8.1, 8.2 and 8.3. The inner cavity of the base 1 is provided with a plurality of fixing slots for assembling the dynamic and static conductive components 8.1, 8.2 and 8.3, and there are multiple openings on one side of the base 1 for the protruding installation of the dynamic and static conductive components 8.1, 8.2 and 8.3. Insert terminal block 3.

[0061] The described dynamic and static conductive components 8.1, 8.2 and 8.3 adopt completely consistent settings. Take the one-phase moving and static contact assembly 8.1 as an example to illustrate its structure.

[0062] The dynamic and static conductive components 8.1 are set with V-shaped anti-short-circuit current loops.

[0063] The dynamic and static conductive assem...

Embodiment 2

[0091] Such as Figure 11 with Figure 12 As shown, a conductive system of a three-phase electric energy meter load switch module with terminal blocks and current sampling devices in the present invention includes dynamic and static conductive components 8.1, 8.2 and 8.3. The inner cavity of the base 1 is provided with a plurality of fixing slots for assembling the dynamic and static conductive components 8.1, 8.2 and 8.3, and there are multiple openings on one side of the base 1 for the protruding installation of the dynamic and static conductive components 8.1, 8.2 and 8.3. Enter terminal block 100.

[0092] The described dynamic and static conductive components 8.1, 8.2 and 8.3 adopt completely consistent settings. Take the one-phase moving and static contact assembly 8.1 as an example to illustrate its structure.

[0093] The dynamic and static conductive components 8.1 are set with V-shaped anti-short-circuit current loops.

[0094] The dynamic and static conductive a...

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Abstract

The invention discloses a load switch module of a three-phase electricity meter carrying a wiring terminal row and current sampling devices. According to the scheme provided in the invention, a load switch of a three-phase electricity meter is designed to be integrated with a terminal row of the three-phase electricity meter, a multi-function auxiliary wiring terminal strip of the three-phase electricity meter, and current sampling devices as one body. According to the invention, the module integration of components of the three-phase electricity meter is realized and reliability of the product performance is improved; besides, the module provided in the invention has advantages of simple structure and easy installation. Moreover, the traditional technology of installation of the three-phase electricity meter is simplified, and reliability and production efficiency of the three-phase electricity meter are also enhanced. Therefore, the three-phase electricity meter provided in the invention better meets relevant international standards as well as standards of the state grid and the nation.

Description

technical field [0001] The invention belongs to the technical field of power devices. Specifically, it relates to the connection, current sampling and load control of a three-phase electric energy meter, and the automatic power-off when the electricity is in arrears. Background technique [0002] The load switch in the load switch module is a kind of circuit closed and disconnected by using the interaction and relative movement of the electromagnetic coil and the permanent magnet under the action of the drive control signal. A control element that can remain on or off after the drive control signal disappears. It has the characteristics of energy saving and stable work, and is widely used in power system protection devices and various telecontrol, remote control and communication devices. It is especially widely used in the remote automatic power-off when the electricity is in arrears in the three-phase smart energy meter, as the main component of the three-phase smart ene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H50/14G01R11/04
Inventor 周铁钢张三军
Owner 张三军