Acceleration checking test method of failure rate of electric connector

A technology for electrical connectors and verification tests, which is applied in the field of timed censored accelerated verification tests, and can solve problems such as impracticability, cost, and long test time

Inactive Publication Date: 2007-08-15
ZHEJIANG UNIV
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0040] As can be seen from the above example, it often takes a long time to test and verify the reliab

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
  • Acceleration checking test method of failure rate of electric connector
  • Acceleration checking test method of failure rate of electric connector
  • Acceleration checking test method of failure rate of electric connector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0069] In the accelerated test to quickly assess the failure rate level of the electrical connector under accelerated conditions, it is necessary to determine the acceleration coefficient a of the electrical connector in advance Ti～T0 . Because the present invention is based on the timing censoring verification test scheme, the censoring time τ of the test is divided by the acceleration coefficient a Ti～T0 To obtain the time-censored accelerated verification test scheme of failure rate. Therefore, when determining the test plan, the accelerated test temperature level T of the electrical connector must first be selected i , and the accelerated test temperature level T i Once selected, it must not be changed during accelerated verification testing.

[0070] Secondly, after selecting the producer risk a and the consumer risk β, determine the sample size n and the maximum allowable number of failures c, and then according to the formula

[0071] ...

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

This invention discloses one electrical connector invalid speed validation method, which comprises the following steps: firstly converting the store temperature in TO into test temperature level Ti invalid rate oflambada'(t); then comparing the Ti with T0 to get identification ratio to repress store temperature T0 invalid scheme as speed test one in level of Ti; then guiding test temperature level of Ti speed test scheme with store temperature level specimen terminate time relation asTau'=Tau/alphaTi-T0 and then taking test temperature of Ti to get terminate time relation speed parameteralphaTi-T0 to determine the terminate time of the level Ti.

Description

technical field [0001] The invention relates to a time-censored accelerated verification test method for quickly evaluating the failure rate grade of an electrical connector. Background technique [0002] The electrical connector is an important supporting component of the aerospace system. It is widely used in various models of aerospace. It is required to reliably communicate circuits and transmit information under various harsh environments and harsh conditions. Failure will cause the system to malfunction. Due to batch, cycle and other reasons, it is often impossible to provide information about the storage period and reliability level of electrical connectors, and there is no test method for verifying the storage life and reliability of electrical connectors during the storage period. . In order to evaluate the reliability level of the electrical connector, a time-censored verification test method with failure rate as the verification index is adopted. [0003] The f...

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 陈文华钱萍崔杰卢献彪周升俊
Owner ZHEJIANG 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