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Hydraulic installation structure and testing module formed by hydraulic installation structure

An installation structure and hydraulic technology, applied in the direction of measuring devices, measuring electrical variables, measuring device casings, etc., can solve the problems of low test efficiency, complicated disassembly and assembly, and large operating space, so as to improve test efficiency, easy expansion, and ensure accuracy sexual effect

Inactive Publication Date: 2018-12-18
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of low test efficiency caused by the large operating space and complex disassembly and assembly required by the power cycle test structure of the crimping type IGBT device in the prior art.

Method used

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  • Hydraulic installation structure and testing module formed by hydraulic installation structure
  • Hydraulic installation structure and testing module formed by hydraulic installation structure
  • Hydraulic installation structure and testing module formed by hydraulic installation structure

Examples

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Embodiment 1

[0071] Such as Figure 1 to Figure 6 Shown is a hydraulic installation structure provided by this embodiment, including:

[0072] Outer frame 1, such as image 3 As shown, a column 15 is provided. In this embodiment, four columns are arranged in a regular cube. The column 15 is formed with a large-diameter middle portion and two ends processed with threads; an upper end plate 14 of the clamp is also provided. , connected to the upper end of the column 15, four nuts lock it on the column 15, a via hole is provided in the middle of the upper end plate 14 of the clamp, and the bottom plate 11 is connected to the lower end of the column 15, Four nuts lock it on the column 15, and the lower end plate 13 of the fixture is arranged below the upper end plate 14 of the fixture. There are through holes at the four corners, and four linear bearings 131 are fixed by screws. The linear bearings 131 Socketed on the column 15, so that the lower end plate 13 of the fixture can move up and d...

Embodiment 2

[0080] Such as Figure 7 As shown, a kind of test module provided by the present invention includes:

[0081] Two hydraulic installation structures and short-circuit copper bars 5 described in Embodiment 1. Only two hydraulic installation structures can be connected together by short-circuit copper bar 5, and installed in the test bench as a whole, which can realize the testing of multiple tested components at the same time, which greatly improves the testing efficiency.

[0082] In this embodiment, there may be multiple hydraulic installation structures provided in Embodiment 1, and short-circuit copper bars 5.

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Abstract

The invention provides a hydraulic installation structure, which comprises an outer frame, a top pressure component, a bottom pressure component and a lower heat exchanger, wherein the outer frame forms a frame body space; the top pressure component and the bottom pressure component are oppositely arranged along a vertical direction and are arranged in the frame body space; the lower heat exchanger is arranged on the bottom pressure component and is provided with a tested element; at least one of the top pressure component and the bottom pressure component can carry out relative movement relative to the other one for clamping the tested element; and the heat exchanger is used for carrying out a temperature rise and cooling operation on the tested element when the tested element is pressed.The invention also discloses a testing module formed by the serial connection of the hydraulic installation structures. The hydraulic installation structure disclosed by the invention has the advantages of good integration level and compact structure and can be directly installed on a test bench, the disassembling workload of a testing structure is reduced, and testing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of reliability testing of crimping IGBT devices, in particular to a hydraulic installation structure and a testing module for power cycle testing of crimping IGBT devices. Background technique [0002] With the development of power semiconductor devices and the expansion of new application fields, crimp-type IGBT devices are widely used in high-voltage direct current transmission systems, wind power, electric railway traction and other fields. Compared with solder-type devices, press-fit IGBT devices have more harsh working conditions, such as high heat flux density brought about by high power and high integration. Reliability is the biggest challenge for IGBT power modules, and among reliability requirements, power cycle testing reflects the resistance of power devices to temperature cycle changes under accelerated stress conditions, and is an extremely important reliability standard. The power cycle test ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R1/04
CPCG01R1/0425
Inventor 张雷李金元潘艳陈中圆张西子刘首文
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD