Reliability testing device and system suitable for liquid nitrogen cooling equipment
A technology of liquid nitrogen cooling and test device, which is applied in the direction of measuring device, testing of machine/structural parts, instruments, etc., can solve problems such as the inability to meet the test requirements of liquid nitrogen cooling equipment
Pending Publication Date: 2020-08-18
CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST
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Problems solved by technology
[0003] During the implementation process, the inventors found at least the following problems in the traditional technology: the traditional reliability test is only suitable for products that adopt natural flow cooling and forced convection cooling, and simulates the working conditions of natural convection or forced convection, which cannot meet the requirements of liquid nitrogen. Cooling equipment test requirements
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[0041] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0042] In the description of the present application, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating th...
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The invention relates to a reliability testing device and system suitable for liquid nitrogen cooling equipment. The device comprises a test box used for placing the liquid nitrogen cooling equipment;a liquid nitrogen tank; a liquid nitrogen pipe which extends into the test box, wherein the liquid inlet end of the liquid nitrogen pipe is communicated with the liquid nitrogen tank, and the liquidoutlet end of the liquid nitrogen pipe is used for being communicated with liquid nitrogen cooling equipment; a first regulating valve which is arranged on the liquid nitrogen pipe; a flow sensor which is arranged on the liquid nitrogen pipe; and a controller which is electrically connected with the first adjusting valve and the control end of the flow sensor, wherein the controller is used for controlling the liquid nitrogen flow of the liquid nitrogen cooling equipment. The controller controls the opening degree of the first adjusting valve according to the liquid nitrogen pipe flow collected by the flow sensor so as to control the flow of liquid nitrogen flowing into the liquid nitrogen cooling equipment, so that the actual working condition environment of the liquid nitrogen cooling equipment is simulated to carry out liquid nitrogen cooling, the reliability test is realized, and the test requirements of the liquid nitrogen cooling equipment are met.
Description
technical field [0001] The present application relates to the technical field of reliability testing, in particular to a reliability testing device and testing system suitable for liquid nitrogen cooling equipment. Background technique [0002] Reliability testing is to stimulate and expose weak links in product design and processing by applying typical environmental stress and working load, so as to improve design and process and improve product reliability. Generally, high-heating power products that use liquid nitrogen cooling for temperature control are called liquid nitrogen cooling equipment, such as aviation radar systems, automotive power batteries, etc. [0003] During the implementation process, the inventors found at least the following problems in the traditional technology: the traditional reliability test is only suitable for products that adopt natural flow cooling and forced convection cooling, and simulates the working conditions of natural convection or for...
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Login to View More IPC IPC(8): G01M99/00
CPCG01M99/002G01M99/008
Inventor 时钟汪凯蔚邝志礼苗宇芯黄永华孔叔钫何宗科解禾颜镠钏张大鹏
Owner CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST