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Relay capable of adjusting mechanical parameters and device and method for measuring fusion welding force of relay

A technology of mechanical parameters and relays, applied in the field of electrical contact, can solve the problems that the breaking speed cannot reach the relays, the relays cannot be directly measured, and the structural parameters of the relays cannot be applied.

Active Publication Date: 2014-10-29
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing relay cannot realize the adjustment of mechanical parameters, the existing welding force measuring device cannot directly measure the contact welding force in the actual operation process of the relay, and the existing contact welding force measuring device The breaking speed cannot reach the actual relay breaking speed level and the unique parameters of the relay, such as the influence of the magnetic gap and mechanical reaction force on the welding force, cannot be applied to the optimization of structural parameters of actual relay products and the selection of contact materials. problem, a relay with adjustable mechanical parameters and a measurement device and method for the welding force of the relay are proposed

Method used

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  • Relay capable of adjusting mechanical parameters and device and method for measuring fusion welding force of relay
  • Relay capable of adjusting mechanical parameters and device and method for measuring fusion welding force of relay
  • Relay capable of adjusting mechanical parameters and device and method for measuring fusion welding force of relay

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specific Embodiment approach 1

[0026] Specific implementation mode 1, refer to Figure 1 to Figure 8 Describe this embodiment in detail, the relay with adjustable mechanical parameters described in this embodiment includes a test relay and its fixing device 1, a contact opening distance adjustment device 2, a magnetic gap adjustment device 3, a mechanical reaction force adjustment mechanism 4, Contact speed measuring device 5 and vibration isolation base 6;

[0027] The center position of the vibration isolation base 6 is fixed with a two-dimensional plane slide 11, the test relay and its fixing device 1 are fixed on the two-dimensional plane slide 11, and the two-dimensional plane slide 11 is used to adjust the plane position of the test relay; The opening distance adjustment device 2, the magnetic gap adjustment device 3, the mechanical reaction force adjustment device 4 and the contact speed measurement device 5 are located on the four outer surfaces of the two-dimensional plane sliding table 11 in the c...

specific Embodiment approach 2

[0055] Specific implementation mode two, refer to Figure 9 Describe this embodiment in detail, the measuring device for the welding force of the relay with adjustable mechanical parameters described in Embodiment 1, which includes a resistance voltage divider circuit 37, a signal conditioning circuit 38, a data acquisition and processing circuit 39 and a host computer 40;

[0056] The two ends of the resistance voltage divider circuit 37 are connected in parallel to both sides of the movable contact and the static contact for obtaining the contact voltage; the output end of the resistance voltage divider circuit 37 is connected to the contact voltage signal input end of the signal conditioning circuit 38 ;

[0057] The output end of the piezoelectric quartz force sensor 15 is connected to the force signal input end of the signal conditioning circuit 38; the signal output end of the signal conditioning circuit 38 is connected to the signal input end of the data acquisition pro...

specific Embodiment approach 3

[0059] Specific embodiment three, using the measuring device for the welding force of the relay with adjustable mechanical parameters described in the second specific embodiment to realize the method for measuring the welding force, the method for measuring the welding force includes the following steps:

[0060] Step 1. Adjust the vertical slide of the No. 1 vertical slide 12 to adjust the position of the static contact 21, and adjust the vertical slide of the second vertical slide 25 to adjust the position of the movable contact 20, so that the movable contact 20 and the static contact The size of the contact opening distance between the contacts 21 reaches the setting value of the contact opening distance, adjust the vertical slide of No. 3 vertical slide 30 to adjust the stretching length of the reaction force spring 27;

[0061] Step 2: Start the relay 8 under test, the movable contact 20 and the static contact 21 are energized and closed, and the resistance voltage divide...

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Abstract

The invention provides a relay capable of adjusting mechanical parameters and a device and method for measuring fusion welding force of the relay and relates to the field of electrical contact. The relay solves the problems that existing relays cannot achieve adjustability of the mechanical parameters, fusion welding force measuring devices cannot directly measure fusion welding force of relay contacts, the breaking speed cannot reach the relay breaking speed level, and characteristic parameters of the relays cannot be learnt, so that the characteristic parameters cannot be applied to structural parameter optimization of actual relay products and contact material selection. The relay comprises a test relay, a test relay fixing device, a contact spacing adjusting device, a magnetic gap adjusting device, a mechanical counterforce adjusting mechanism, a contact speed measurement device and a vibration isolation base. The relay further comprises a resistance voltage division circuit, a signal processing circuit, a data collecting and processing circuit and an upper computer. According to the method for measuring the fusion welding force, a value of fusion welding force is obtained through the difference of a contact voltage rising edge front force signal jumping value and a contact voltage rising edge rear force signal jumping value. The device and method for measuring fusion welding force of the relay are further suitable for measuring other parameters of the relay.

Description

technical field [0001] The invention relates to the field of electrical contact, in particular to a welding force testing device during the actual action of a relay contact. Background technique [0002] Relays are widely used in industries such as industrial control automation, communication engineering, electronic information engineering, transportation engineering, and aerospace engineering. In high-end industries and special industries, the demand for electrical and electronic components is generally reflected in the "miniaturization, low , long life and high reliability". The structural essential characteristics of electromechanical components represented by electromagnetic relays determine that the improvement of their reliability and long life is closely related to the combination of mechanical adjustment parameters. As the main failure mode of relays, contact welding is mainly caused by the melting and gasification of the metal on the contact surface caused by the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H50/00G01R31/327G01L5/00
Inventor 任万滨金建炳王海
Owner HARBIN INST OF TECH
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