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Electric energy meter communication module weak current interface power supply ripple measuring device

A communication module and power supply ripple technology, applied in the field of electric energy meters, can solve the problems of long time-consuming, large interference of power interface ripple measurement, etc., and achieve the effect of reducing difficulty

Pending Publication Date: 2020-11-27
宁夏隆基宁光仪表股份有限公司
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Problems solved by technology

[0004] This application provides a power supply ripple measurement device for the weak current interface of the communication module of the electric energy meter, so as to solve the problems that the ripple measurement of the power supply interface of the communication module of the smart electric energy meter has great interference and takes a long time due to the measurement device and personnel operation

Method used

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  • Electric energy meter communication module weak current interface power supply ripple measuring device
  • Electric energy meter communication module weak current interface power supply ripple measuring device
  • Electric energy meter communication module weak current interface power supply ripple measuring device

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Embodiment Construction

[0028] The embodiments will be described in detail hereinafter, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following examples do not represent all implementations consistent with this application. These are merely examples of systems and methods consistent with aspects of the present application as recited in the claims.

[0029] see Figure 1 to Figure 5 .

[0030] The application provides a power supply ripple measurement device for a weak current interface of an electric energy meter communication module, which includes a load connection board 1 and a negative contact board, both of which are PCB boards.

[0031] Specifically:

[0032] Such as figure 1 As shown, the load connection board 1 penetrates from the top to the bottom and has a plur...

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Abstract

The invention relates to an electric energy meter communication module weak current interface power supply ripple measuring device, which comprises a load connecting plate and a negative electrode contact plate, and is characterized in that the load connecting plate and the negative electrode contact plate are PCBs. A plurality of first contact pins extend out of one surface of the load connectingplate and are used for being inserted into a weak current interface of an electric energy meter communication module. At least one load resistor is arranged on the other surface of the load connecting plate, a power supply positive electrode measuring point is arranged on the other surface of the load connecting plate, a negative electrode contact plate is also arranged on the other surface of the load connecting plate, the negative electrode contact plate is connected with the load connecting plate through a plurality of second contact pins, the two surfaces of the negative electrode contactplate are coated with copper layers, the negative electrode contact plate is provided with a through bonding pad, and the bonding pad is provided with a central hole and is arranged opposite to the power supply positive electrode measuring point. According to the invention, the weak current interface power supply ripple of the intelligent electric energy meter communication module can be measuredmore quickly and accurately.

Description

technical field [0001] The present application relates to the technical field of electric energy meters, in particular to a power supply ripple measurement device for a communication module of an electric energy meter with a weak current interface. Background technique [0002] At present, with the widespread application of smart energy meters, various communication modules gradually occupy the smart energy meter communication market, thus putting forward higher load and ripple requirements for the power interface of the energy meter communication module. The power ripple of the weak current interface of the communication module of the electric energy meter directly affects the communication effect of the communication module. Therefore, both the State Grid Corporation of China and China Southern Power Grid Corporation have put forward the requirement that the output ripple of the power interface of the communication module be less than or equal to one thousandth. In order t...

Claims

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Application Information

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IPC IPC(8): G01R1/04
CPCG01R1/0408
Inventor 常兴智党政军纳晓文马海兵姜锟
Owner 宁夏隆基宁光仪表股份有限公司
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