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HALT test fixture of PCBA plug-in and installation method

A technology of test fixture and installation method, applied in the direction of measurement device, measurement device shell, environment/reliability test, etc. Enhanced effect, highly versatile effect

Pending Publication Date: 2020-11-06
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in the existing HALT test (Highly Accelerated Life Test), for chassis products, due to the difficulties in fixing and signal transmission when the plug-in PCBA is independently tested for HALT, practitioners place the entire chassis in the test box However, there are many problems in this test method, such as vibration stress transmission attenuation or frequency spectrum change, temperature stress change rate lower than the set value, and uneven temperature distribution, etc., resulting in the set value of vibration and temperature change and the actual application. The value difference on the product is large, which affects the effect of HALT test execution

Method used

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  • HALT test fixture of PCBA plug-in and installation method
  • HALT test fixture of PCBA plug-in and installation method
  • HALT test fixture of PCBA plug-in and installation method

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] Such as Figure 1 to Figure 4 As shown, the present invention discloses a HALT test fixture for a PCBA plug-in, including a mounting base 1 and a pressure block 4, and the mounting base 1 is provided with two relatively parallel supporting parts 2 for supporting the PCBA plug-in, and the supporting part 2 There is a fixed groove 3 for placing the PCBA plug-in, and the pressing block 4 is installed on the supporting part 2 through fasteners, and the pressing block 4 is used to fasten the PCBA plug-in on the supporting part 2.

[0031] The HALT test fixture of the PCBA plug-in of the present invention is designed with a mounting base 1. The mounting base 1 is provided with two relatively parallel supporting parts 2 for supporting the PCBA plug-in. Slot 3, when the HALT test is required, place the PCBA plug-in in the fixed slot 3...

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Abstract

The invention discloses an HALT test fixture of a PCBA plug-in unit. The test fixture comprises a mounting base and a pressing block, wherein the mounting base is provided with two supporting parts which are oppositely arranged in parallel and used for supporting the PCBA plug-in, the supporting parts are provided with fixing grooves used for containing the PCBA plug-in, the pressing block is mounted on the supporting parts through fasteners, and the pressing block is used for fastening the PCBA plug-in to the supporting parts. The test fixture has the advantages of being simple in structure,high in universality, reliable in fixing mode, capable of improving the HALT test effect and the like.

Description

technical field [0001] The invention relates to the technical field of a PCBA plug-in test fixture, in particular to a HALT test fixture and an installation method for a PCBA plug-in. Background technique [0002] As one of the main structural forms of secondary equipment, the chassis is composed of a large number of PCBA (printed circuitboard assembly, printed board assembly) plug-ins. As the basic unit of the chassis, the PCBA plug-in is related to the realization of secondary equipment protection, sampling, communication, human-machine communication and other functions, as well as the safe operation of rail transit, so its reliability and stability are very important. [0003] At present, in the existing HALT test (Highly Accelerated Life Test), for chassis products, due to the difficulties in fixing and signal transmission when the plug-in PCBA is independently tested for HALT, practitioners place the entire chassis in the test box However, there are many problems in th...

Claims

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Application Information

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IPC IPC(8): G01R1/04G01R31/00
CPCG01R1/0408G01R31/003
Inventor 肖江林杜绍华
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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