Device for analyzing static contact characteristic of electrical appliance contact material

A contact material and characteristic analysis technology, applied in the direction of measuring devices, material resistance, instruments, etc., can solve the problem of no electrical contact pressure and contact resistance change rules, and achieve the effect of simple structure, low cost and convenient operation

Inactive Publication Date: 2012-08-08
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the problem that there is no analysis device for the change law of electrical contact pressure and contact resistance at present, and further provides a static contact characteristic analysis device for electrical contact materials

Method used

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  • Device for analyzing static contact characteristic of electrical appliance contact material
  • Device for analyzing static contact characteristic of electrical appliance contact material

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0010] Specific implementation mode one: as figure 1 As shown, the device for analyzing static contact characteristics of electrical contact materials in this embodiment includes a rotating rod 1, a screw 2, an upper support plate 4, a screw positioning device 5, a middle pressure plate 6, an upper insulating sleeve 9, and a first terminal piece 10, second terminal piece 13, lower insulating sleeve 14, pressure sensor 15, bottom plate 16, two linear bearings 7 and two guide rails 8, and the two guide rails 8 are vertically fixed on the upper end surface of the bottom plate 16 , the pressure sensor 15 is fixed on the upper end surface of the bottom plate 16 and is located between the two guide rails 8, the upper support plate 4 is horizontally fixed on the upper ends of the two guide rails 8, and the upper support plate 4 is processed with Threaded through hole 4-1, the screw 2 is threadedly connected with the threaded through hole 4-1 of the support plate 4, the rotating lever...

specific Embodiment approach 2

[0012] Specific implementation mode two: as figure 1 As shown, the length of the guide rail 8 in this embodiment is 170-200 mm. With this design, the distance between the middle pressure plate 6 and the pressure sensor 15 is increased, thereby increasing the flexibility of selecting the shape and type of the contact material. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0013] Specific implementation mode three: as figure 1 As shown, the analysis device in this embodiment further includes a wire sleeve 3, which is threadedly connected with the lead screw 2 and fixed on the upper end surface of the threaded through hole 4-1 of the upper support plate 4. With such a design, the thread lead of the lead screw 2 can be increased, thereby enhancing the mechanical strength of the lead screw 2 . Other compositions and connections are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a device for analyzing the static contact characteristic of an electrical appliance contact material, which relates to a device for analyzing the characteristic of an electrical appliance contact and is used for solving the problem of the absence of a device for analyzing the changing rules of the pressure and contact resistance of an electrical appliance contact. Two guide rails are vertically and fixedly arranged on the upper end face of a bottom plate; a pressure sensor is fixedly arranged on the upper end face of the bottom plate, and is positioned between the two guide rails; an upper support plate is horizontally fixed at the upper ends of the two guide rails; a lead screw is in threaded connection with a threaded through hole on the support plate; each guide rail is sleeved with a linear bearing; two linear bearings are fixedly connected into a whole through a medium-pressure plate; a step shaft is vertically inserted into a central through hole on the medium-pressure plate, and is arranged with a larger part on the top and a smaller part at the bottom; the upper part of an upper insulating sleeve is sleeved at the lower end of the step shaft; a first wiring terminal sheet is positioned on the lower end face of the upper insulating sleeve; and the lower part of the lower insulating sleeve is sleeved at the upper end of a contact of the pressure sensor. The analyzing device disclosed by the invention is used for analyzing the static contact characteristics of an electrical appliance contact material.

Description

technical field [0001] The invention relates to a device for analyzing characteristics of electrical contact materials. Background technique [0002] As the role of electrical products becomes more and more important, people further realize the significance of contact reliability research. The contact resistance of electrical contacts is too high, which will cause the temperature rise of the contacts, which may cause permanent deformation of the contacts, and even welding phenomenon; and because the voltage loss on the contacts is too high, the low-level logic control circuit will The logic is chaotic, which affects the reliability of the electrical contacts, thereby reducing the service life of the electrical contacts. The contact resistance of electrical contacts is the core issue in the contact reliability detection of electrical contacts. [0003] The contact resistance of an electrical contact is related to its contact surface, including the actual contact area, conta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/04G01R27/02
Inventor 任万滨曹晟
Owner HARBIN INST OF TECH
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