Electric connector accelerated storage life test method

A technology for accelerated life testing and electrical connectors, which is used in instruments, measuring electricity, measuring electrical variables, etc., and can solve the problems of low test accuracy and immature statistical methods.

Active Publication Date: 2018-02-23
ZHEJIANG SCI-TECH UNIV
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sequential stress accelerated life test has the advantages of short test time and small sample size, but the statistical method is not yet mature and the test accuracy is not high. Therefore, it is necessary to find a combination of constant stress acce...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electric connector accelerated storage life test method
  • Electric connector accelerated storage life test method
  • Electric connector accelerated storage life test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0112] The present invention will be further described below in conjunction with accompanying drawing.

[0113] Step 1. According to the type of electrical connector to be tested, query the manual of the corresponding type of electrical connector to determine the working life of the electrical connector t g , the working temperature range of the electrical connector, the storage temperature range of the electrical connector and the shell material of the electrical connector to be tested. Determine the minimum test temperature T 0 , the lowest test temperature T 0 Within the working temperature range of the electrical connector. Determine the test storage temperature T z , test storage temperature T z In the electrical connector storage temperature range, T z Take 20°C. Query the limit operating temperature of the shell material (that is, the heat-resistant temperature of the shell material). Take the limit working temperature of the shell material as the maximum test te...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an electric connector accelerated storage life test method, which aims at the defects that the testing time of a constant stress accelerated life test is long, and the test precision of a progressive stress accelerated life test is not high. The electric connector accelerated storage life test method comprises the steps of: step 1, determining electric connector operating life t<g>, a storage environment temperature T<0>, a highest test temperature T<m> and cut-off time tau; step 2, determining an expression of a variance factor V<k> of an estimated value y

(zeta 0) of a P-order quantile of electric connector storage life; step 3, calculating a minimum value V<k>(min) of the V<k>, and T<c>, k, pi

, beta<0>, beta<1>, T<1> and sigma corresponding to the minimum value V<k>(min); step 4, calculating an electric connector test total sample size n; step 5 and 6, conducting two kinds of testing experiments; step 7, calculating estimated values of parameters of an electric connector model; step 8, and calculating storage life t<R> of the electric connector. The electric connector accelerated storage life test method can shorten the total testing time when compared with a constant stress accelerated life test scheme, and can realize rapid evaluation of the storage life of the electric connector.

Description

technical field [0001] The invention belongs to the technical field of life test of electrical connectors, in particular to an accelerated storage life test method of electrical connectors. Background technique [0002] For "long-term storage, one-time use" electrical connectors, major accidents are caused in order to avoid resource waste caused by early scrapping or have been scrapped but still put into use. Therefore, it is very necessary to evaluate the storage reliability of the electrical connector, and the evaluation of the storage reliability of the electrical connector is mostly realized by the accelerated storage life test. [0003] The test stress of the accelerated storage life test is determined by the environmental stress and failure mechanism in the actual storage environment. The failure mechanism of electrical connector storage environment mainly includes temperature and humidity stress. Since most electrical connectors use a sealing ring for compression se...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01R31/00
Inventor 钱萍孟垣东陈文华杨帆陈磊磊叶杰辉颜佳辉夏宏运
Owner ZHEJIANG SCI-TECH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap