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Connecting apparatus for equipment pressure resistance test

A technology for connecting device and withstand voltage test, which is applied in the direction of measuring device, testing circuit, testing dielectric strength, etc., to achieve the effect of reducing assembly workload, improving production efficiency, improving convenience and real-time performance

Inactive Publication Date: 2011-06-22
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] However, none of the above patents (applications) can easily connect and disconnect the metal case with the internal circuit when the device is subjected to a withstand voltage test, and the withstand voltage test cannot be performed without opening the device case.

Method used

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  • Connecting apparatus for equipment pressure resistance test
  • Connecting apparatus for equipment pressure resistance test
  • Connecting apparatus for equipment pressure resistance test

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Embodiment Construction

[0034] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] see figure 1 , shows a schematic diagram of the internal circuit grounding of a traditional electronic device. Wherein, the internal circuit includes a live wire L input and a neutral wire N 入 , and includes the signal input line S 入. In addition, multiple lightning protection circuits (or lightning protection components) A1 and A2 are provided in the internal circuit, and the Zener diode A3 in the circuit is also used as a lightning protection component. There is a safety ground (line) PE in the internal circuit. PE is the abbreviation of "power earth", which means the power ground wire. For power electronic equipment or a three-core power socket at home: L is the live wire, N is the neutral wire, PE is the power ground, and because the machine shell is usually connected to the earth or the public ground, PE refers ...

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Abstract

The invention discloses a connection device (N) for withstand voltage testing of equipment, which comprises a first component (1) arranged inside the equipment and having a conductor portion (14) electrically connected with power earth (PE) of the internal circuit of the equipment at a first end (141) and extending to a housing (B1) of the equipment at a second end (142); and a second component (2) arranged outside the equipment for electrically connecting the second end (142) of the conductor portion (14) to a metal portion of the equipment housing (B1). The invention can conveniently disconnect the metal housing from the internal circuit of the equipment without opening the equipment housing during withstand voltage testing, and can connect the metal housing with the internal circuit when the test is over, thus facilitating withstand voltage test of the equipment.

Description

technical field [0001] The invention relates to a connection device used for the withstand voltage test of equipment, which can separate the internal circuit of the equipment from the shell of the equipment when the electronic equipment is tested for the safety withstand voltage performance, so as to eliminate the influence of the lightning protection circuit and the like. Background technique [0002] There are usually lightning protection circuits inside various electronic devices to play a protective role in abnormal situations. For example, when high voltage or high current invades the device through conduction and induction, the lightning protection circuit will release energy to the metal of the device. on the housing to avoid damage and failure inside the device. These lightning protection circuits are especially common and important in outdoor type equipment. [0003] However, such a lightning protection circuit brings inconvenience to the safety withstand voltage t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00G01R31/12G01R31/14
Inventor 华海宁白如冰王长明杨晓东
Owner STATE GRID CORP OF CHINA
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