Electrical component reliability evaluation and service life prediction method

A technology for life prediction and components, used in environmental/reliability testing, instrumentation, electrical measurement, etc., to achieve the effect of shortening the test cycle, evaluating and predicting the results accurately

Active Publication Date: 2020-11-13
CHINA NAT ELECTRIC APP RES INST
View PDF7 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, they can only evaluate the pros and cons of product quality

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
  • Electrical component reliability evaluation and service life prediction method
  • Electrical component reliability evaluation and service life prediction method
  • Electrical component reliability evaluation and service life prediction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention mainly pays attention to the impact of the airtight corrosion environment on the reliability and life of electrical components. Considering that corrosion mainly affects the electrical performance of electrical components, a key electrical performance parameter is selected as the reliability of electrical components in the present invention. Basis for evaluation and life prediction. As a preferred embodiment of the electrical component reliability evaluation and life prediction method of the present invention, it specifically includes the following steps:

[0023] S1) Obtain initial information such as types, specifications and models of electrical components through manuals, certificates or nameplates, and at the same time obtain their working condition parameters such as current and voltage under quasi-operating conditions.

[0024] S2) Design the accelerated corrosion test parameters in a targeted manner, including the setting of the test temper...

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 electrical component reliability evaluation and service life prediction method. The method comprises the following steps of: (1) respectively carrying out an operation environment exposure test and an accelerated corrosion test on a standard material sample of a contact material of an electrical component, establishing good correlation of the two environment tests, and seeking a corresponding relationship between test time of the two environment tests; and (2) performing the accelerated corrosion test in the step (1) on the electrical component, obtaining the corresponding accelerated corrosion failure time according to the failure criterion of the key electrical performance parameters, and obtaining the failure time of the electrical component in the actual operation environment according to the corresponding relationship between the test time of the two environment tests in the step (1). According to the invention, the correlation between the accelerated corrosion test and the operation environment exposure test of the electrical component is verified firstly, and then the accelerated corrosion test with good correlation is selected to carry out reliability evaluation and life prediction on the electrical component, so that the accuracy of reliability evaluation and life prediction is improved while the test period is effectively shortened.

Description

technical field [0001] The present invention relates to a reliability evaluation and life prediction method for electrical components operating in a closed corrosive environment. The closed environment involved in the present invention refers to relatively stable parameters such as temperature and humidity, but no environmental control is adopted. environment of the measure. Background technique [0002] Electrical components are often used in various power distribution systems in industrial production, and their stable and reliable operation is the key to the daily safe production and domestic use of power distribution systems. Due to the increasingly serious pollution of the atmospheric environment and industrial environment in recent years, or due to some special geological factors such as industrial site selection, the operating environment is chaotic and complicated, and electrical components are restricted and interfered by harsh environments during operation, resultin...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/003Y02E60/00
Inventor 杨阳陈川向利揭敢新王俊
Owner CHINA NAT ELECTRIC APP RES INST
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