Electric vehicle high-voltage system Y capacitor test device and test method

A high-voltage system and capacitance testing technology, which is applied in the direction of capacitance measurement, resistance/reactance/impedance measurement, and measurement devices, can solve the problems of high risk of electric shock and low test efficiency, so as to improve safety, improve overall production efficiency, reduce The effect of production costs

Pending Publication Date: 2020-08-28
FUJIAN NEBULA ELECTRONICS CO LTD
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a Y capacitance testing device and testing method for the high-voltage system of an electric vehicle, so as to solve the problems of high risk of electric shock and low testing efficiency in the existing manual testing.

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  • Electric vehicle high-voltage system Y capacitor test device and test method
  • Electric vehicle high-voltage system Y capacitor test device and test method
  • Electric vehicle high-voltage system Y capacitor test device and test method

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Embodiment Construction

[0051] see figure 1 As shown, a kind of electric vehicle high voltage system Y capacitance testing equipment 100 of the present invention, described testing equipment 100 comprises:

[0052] An external signal input port 1, the external signal input port 1 is used for accessing the high-voltage battery pack or the high-voltage system 200 of the vehicle, so as to test the high-voltage battery pack or the high-voltage system 200 of the vehicle;

[0053] A balance circuit 2, the balance circuit 2 is connected to the output end of the external signal input port 1, and the balance circuit 2 is used to ensure the balance and stability of the externally input high-voltage signal;

[0054] A load circuit 3, the load circuit 3 is connected to the balance circuit 2, and the load circuit 3 is used to discharge the Y capacitor of the high-voltage battery pack or the high-voltage system 200 of the vehicle during the test;

[0055] A signal acquisition circuit 4, the signal acquisition cir...

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Abstract

The invention provides an electric vehicle high-voltage system Y capacitor test device and test method. The test device comprises an external signal input port, a balancing circuit connected with theoutput end of the external signal input port, a load circuit connected with the balancing circuit, a signal acquisition circuit connected with the load circuit, and a MCU connected with the load circuit. The device has the advantages that the situation that people get an electric shock can be avoided, the test safety is improved, and the test efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of automobile safety, in particular to a Y capacitance testing device and a testing method of a high-voltage system of an electric vehicle. Background technique [0002] With the increasingly severe energy and environmental problems, every major automobile production country in the world is putting more and more electric vehicles into the market. An important feature of an electric vehicle is that it has a high-voltage power circuit, and the voltage in its working circuit can even reach more than 600V. Therefore, while considering the environmental protection benefits brought by electric vehicles, the high-voltage safety issue cannot be ignored. It can be said that how to protect the safety of relevant personnel has become the most important focus at present. [0003] The insulation level of the high-voltage system and the leakage current of the Y capacitor are two key factors to ensure the safety of person...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/26G01R35/00
CPCG01R27/2605G01R35/005
Inventor 汤平纪龙治邓秉杰熊刚王伟平孔腾
Owner FUJIAN NEBULA ELECTRONICS CO LTD
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