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Insulation test tool used for IGBT module

An insulation test and tooling technology, applied in the direction of testing dielectric strength, etc., can solve the problems of IGBT module damage and IGBT module receiving pressure, and achieve the effect of omitting installation and disassembly and improving test efficiency.

Inactive Publication Date: 2015-12-09
XIAN YONGDIAN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the above scheme, only the corresponding probe mechanism is set for the corresponding port of the IGBT module. During the test, the loading unit drives the probe mechanism to contact the IGBT port. Since the driving degree of the loading unit is not controlled accordingly, in actual operation, it is easy to produce The IGBT module receives excessive pressure, which causes damage to the IGBT module

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  • Insulation test tool used for IGBT module
  • Insulation test tool used for IGBT module
  • Insulation test tool used for IGBT module

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Embodiment Construction

[0019] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0020] The insulation test tool for IGBT module provided by the preferred embodiment of the present invention includes a frame, a movable shaft and a pressure sensor. figure 2 It is a schematic structural diagram of the insulation test tool for IGBT modules provided by the preferred embodiment of the present invention, image 3 It is a schematic diagram of the working state of the insulation test tool for IGBT modules provided by the preferred embodiment of the present invention. Such as figure 2 and image 3 As shown, the frame is divided into upper and lower parts 1 and 3, which are connected by a movable shaft 2. Wherein, the pressure sensor is installed on the rack, the IGBT module is place...

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Abstract

The invention provides an insulation test tool used for an IGBT module. The insulation test tool comprises a machine frame, a flexible shaft and a pressure inductor. The machine frame is divided into an upper part and a lower part which are connected via the flexible shaft. The pressure inductor is installed on the machine frame. The IGBT module is arranged between the upper and lower machine frames. The upper machine frame applies pressure to the lower machine frame via the flexible shaft. When the pressure inductor measures that pressure between the upper and lower machine frames reaches the preset value, the flexible shaft stops moving and maintains the pressure state of the upper and lower machine frames.

Description

technical field [0001] The invention belongs to the technical field of IGBT module testing, and in particular relates to an insulation testing tool for IGBT modules. Background technique [0002] With the development of modern technology, semiconductor devices and components are widely used in various fields. As a representative product of the third revolution of power electronics, IGBT is mainly used in rail transit, wind power generation, electric vehicles, inverter devices and other fields, leading the advancement of the semiconductor industry. The IGBT module includes two parts: packaging and testing. The test is to test the electrical properties of the IGBT module. One of them is to test the insulation and partial discharge of the IGBT module to ensure that the module will not be caused by partial discharge during use. The module fails to ensure the reliability of the IGBT module. [0003] At present, the traditional manual method is mainly used to fasten the copper p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
Inventor 王蓉
Owner XIAN YONGDIAN ELECTRIC