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High-voltage withstand and high-current coaxial connector

A coaxial connector, high current technology, applied in the direction of connection, two-part connection device, circuit, etc., can solve problems such as weak signals, and achieve the effect of convenient fixing, compact overall structure, and convenient connection

Active Publication Date: 2013-10-02
XIAN POWER ELECTRONICS RES INST
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, in the IGBT dynamic test circuit, the coaxial cable needs to be docked with the test fixture through the connector, and the inner and outer cores are required to withstand a voltage of 10kV and a current of 1kA DC pulse current. It is a low voltage, small current and weak signal, so a high withstand voltage and high current coaxial connector is designed for this purpose

Method used

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  • High-voltage withstand and high-current coaxial connector

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Embodiment Construction

[0010] High withstand voltage and high current coaxial connector, including connecting seat and connecting head, connecting seat is divided into connecting seat inner conductive shaft (1), connecting seat inner insulating sleeve (2) and connecting seat outer conductive flange ( 3) Three layers, the inner insulating sleeve (2) of the connecting seat makes the conductive shaft (1) in the connecting seat and the outer conductive flange (3) of the connecting seat realize high-voltage isolation; one end of the conductive shaft (1) in the connecting seat is provided with a threaded hole ( 18). From the inside to the outside of the connector, there are wire spring pins (6), the inner conductive shaft of the connector (10), the coaxial cable core (12), the intermediate insulating sleeve (7), the inner insulating sleeve of the connector (11), the coaxial Cable core inner insulation layer (13), coaxial cable outer insulation layer (14), connector flange (8), connector outer conductive s...

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Abstract

The invention relates to a high-voltage withstand and high-current coaxial connector, and is suitable for the butting of coaxial single-core shielding cables under the conditions of high voltage and high current, which is mainly applied to test the opening and closing properties of novel high-power quick power semiconductor devices and is also used for connecting coaxial high-voltage cables of high-frequency, high-voltage and high-current equipment of quick power semiconductors, such as IGBT (insulated gate bipolar transistor) and MOS (metal oxide semiconductor). The butting of a wire spring pin and a matched connecting head inner conductive shaft is used as the high-current mutual-plugging connection, so a center conductive body has the capability of conducting high current. The design of a multi-layer polytetrafluoroethylene insulting sleeve pipe overlapping structure is adopted, so the connector center conductive body combination and a connector outer annular conductive body have higher insulation and voltage withstand capabilities. The connector has the advantages that the integral structure is compact, the fixing is convenient, and the connection is convenient and quick; and a 1500A and 10ms-width direct current single current pulse can pass through the connector, and the capability of isolating 12kV direct current voltage is realized.

Description

technical field [0001] The invention relates to a high withstand voltage and high current coaxial connector, which is suitable for the docking of coaxial single-core shielded cables under high voltage and high current conditions. Coaxial high-voltage cable connection for fast power semiconductors such as IGBT, MOS and other high-frequency, high-voltage, and high-current equipment. Background technique [0002] At present, the new high-voltage, high-current and fast power semiconductor devices such as IGBT have a working voltage of 6500V, a current of more than 1000A, and a high switching speed. When testing the switching dynamic characteristics of such devices, due to the existence of distributed inductance of the line, It is very likely that when the device is turned off, a high induced high voltage will be generated. If it is not limited, it is likely to cause damage to the component due to overvoltage. In the dynamic test, in order to truly reflect the switching characte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R24/38H01R13/33H01R13/40
Inventor 李更生肖秦梁胡珊于庆
Owner XIAN POWER ELECTRONICS RES INST
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