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Device for suppressing emc common-mode interference in motor vehicle high-voltage applications

A common-mode interference and motor vehicle technology, applied in electric vehicles, vehicle energy storage, vehicle components, etc., can solve the problem that Y2 capacitors are not suitable for high-voltage applications in motor vehicles, and optimize EMV common-mode interference and high-frequency common-mode interference Inhibition, low-cost effect

Pending Publication Date: 2021-09-28
WEBASTO AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, Y2 capacitors are not suitable for automotive high voltage applications for the following reasons:

Method used

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  • Device for suppressing emc common-mode interference in motor vehicle high-voltage applications
  • Device for suppressing emc common-mode interference in motor vehicle high-voltage applications
  • Device for suppressing emc common-mode interference in motor vehicle high-voltage applications

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Embodiment Construction

[0028] figure 1 and figure 2 It is explained in the way of introducing the existing technology.

[0029] exist image 3 An embodiment of the device according to the invention is shown in .

[0030] This embodiment is similar to the figure 2 The device shown in differs in that non-Y2 rated Y capacitors connected in a V-configuration are connected to chassis ground through series connected Y capacitors.

[0031] The series connection is designed in such a way that a series connection according to the LV123 standard is produced and the required creepage distances are achieved. This series connection can be made with the figure 2 Compared with the prior art situation, it is realized with a smaller number of capacitors.

[0032] The circuit of the device according to the invention can be realized at a lower cost compared to the prior art because low voltage capacitors can be used as Y capacitors compared to Y2 rated high voltage capacitors required in the prior art.

[00...

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PUM

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Abstract

The invention provides a device for suppressing EMC common-mode interference in motor vehicle high-voltage applications, the device having Y-capacitors in a V-configuration between positive and negative high voltage (HV+, HV-) and the chassis ground. The device is characterized in that there is provision for the Y-capacitors connected in a V-configuration to be connected to the chassis ground via series-connected Y-capacitors.

Description

technical field [0001] The present invention relates to a method for suppressing EMV common mode interference in automotive high voltage applications A device with Y capacitors in a V configuration between positive and negative high voltages and chassis ground (Chassismasse). Background technique [0002] In order to block and attenuate interference signals such as those used in high-voltage components of motor vehicles, radio-interference suppression capacitors are used, which are defined as types X and Y depending on the required properties. [0003] According to IEC 60384-1, class X capacitors are capacitors with "unrestricted capacitance" connected between a phase and neutral conductor or between two phase conductors. Class X capacitors are pre-specified for applications where their failure due to a short circuit will not result in a dangerous electric shock. [0004] Class X radio anti-interference capacitors are divided into several sub-categories as follows: [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B1/02
CPCH05B1/0236Y02T10/70B60R16/02H03H7/0138
Inventor H·雷西贝格尔
Owner WEBASTO AG