A method for selecting a magnetic holding relay suitable for improving safety

A technology of magnetic latching relays and relays, which is applied in the direction of instruments, electrical digital data processing, and special data processing applications, etc., can solve problems such as relay contact welding, relay over-design or under-design, and welding faults, and achieve improved relay safety effect

Active Publication Date: 2019-01-18
CHINA ACADEMY OF SPACE TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology helps prevent failures caused by electrical disconnection or damage during use of relay devices used in various industries such as aircraft flight control systems (Flight Control System). It uses specific values calculated from real-time data collected through sensors attached directly onto these relays without relying solely upon previous measurements made over time. By comparing this results it provides guidelines that help improve the performance and durability of relators in FACS.

Problems solved by technology

This patents discusses how magnetism comes into play when two parts slide together during use for an electronic device called a switch that controls power flow between different components inside it. However, due to its potential hazards from electromagnetic interference (EMI) arising from high voltages associated with certain types of equipment like radar systems, this issue needs to be solved before selecting suitable materials for each part of the switch.

Method used

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  • A method for selecting a magnetic holding relay suitable for improving safety

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Embodiment Construction

[0027] The selection method of the magnetic latching relay of the present invention will be further explained below in conjunction with the embodiments. The method of the present invention fixes internal factors such as the quality level, structure type, and contact form of the magnetic latching relay that affect the safety of the relay, and introduces and calculates the actual current and duration parameters of the relay to carry out the selection of the relay. The specific steps are as follows:

[0028] The actual current of the relay is the instantaneous current actually passed by the relay contacts during the closing or breaking process. The duration includes metal phase arcing time and gas phase arcing time. The metal phase arcing time and gas phase arcing time produced by different contact materials are different. The present invention uses the sum of metal phase arcing time and gas phase arcing time, ie the total arcing time, as a calculation parameter.

[0029] 1) Calcul

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Abstract

A method for selecting a magnetic holding relay suitable for improving safety is provided. Aiming at the possible welding failure mode of magnetic holding relay, the magnetic holding relay used in spacecraft is designed to resist surge current shock according to the influence of surge current and surge current duration on relay life at the moment of contact opening and closing. At present, the relay selection and design can only be carried out through the component manual, but only part of the relay type anti-surge current value is given in the component manual, the influence of surge currentand energy generated by surge current duration on relay safety is not clear, and the possibility of over-design or under-design exists in relay selection and design. Compared with the existing designmethod, the method of the invention is more quantitative, more reliable, more operable and has good application value.

Description

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Claims

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Application Information

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Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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