Method of analyzing contact resistance change rules on basis of black box theory

A technology of contact resistance and theoretical analysis, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problem of not analyzing the change law of contact resistance, achieve accurate calculation and improve accuracy

Active Publication Date: 2018-01-09
HUAIYIN INSTITUTE OF TECHNOLOGY
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AI Technical Summary

Problems solved by technology

[0002] The armature slides on the energized guide rail to form a contact resistance. During the sliding process, affected by factors such as gaps, heat generated by friction, and deformation caused by heat, the resistance between the two will continue to change. The existing technology has not yet been able to analyze the contact resistance. method of variation

Method used

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  • Method of analyzing contact resistance change rules on basis of black box theory
  • Method of analyzing contact resistance change rules on basis of black box theory
  • Method of analyzing contact resistance change rules on basis of black box theory

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Embodiment Construction

[0027] The method for analyzing the change law of contact resistance impedance based on the black box theory includes the following steps:

[0028] a. Set the contact resistance as figure 1 Shown as the electrical resistance produced between the metal ring 1 of the guide rail and the conductor slide arm 2 as the armature, the guide rail is arranged on the edge of the insulating disc 4 with the metal rotating shaft 3, the guide rail and the metal The rotating shafts 3 are conducted through the conductive sheet 5, and a plurality of measuring devices 7 are embedded at different distances on the metal ring 1 and the sliding arm 2, including: magnetic probes, Hall devices, potentiometers and infrared temperature detection instruments; A pulse power supply is connected to the end of the armature and one end of the metal rotating shaft 3 to form a circuit, and a motor as a driving mechanism is used to drive the metal rotating shaft 3 to drive the guide rail on the insulating disc 5 ...

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Abstract

The invention discloses a method of analyzing contact resistance change rules on the basis of the black box theory. The method includes a, setting contact resistances as resistances generated during electric contact between a metal ring serving as a guide rail and a conductor slide arm serving as an armature, and arranging the guide rail on the side of an insulated disc with a metal rotating shaft, wherein the guide rail is communicated with the metal rotating shaft through a conductor piece; connecting a impulse power current to the tail end of the armature and one end of the metal rotating shaft to form a loop, and driving the metal rotating shaft to drive the guide rail on the insulated disc to rotate by a driving mechanism; b, building an equivalent circuit of the loop, and creating aloop voltage equation of the equivalent circuit according to a loop voltage law; c, solving current density in the armature, and acquiring an expression of armature section normal current density through data fitting; measuring potential difference between the armature and the guide rail, acquiring an expression of potential difference changes through data fitting, and acquiring an expression of impedance changes between the guide rail and the armature according to the formula of R=U / I.

Description

technical field [0001] The invention relates to a method for analyzing the change law of contact resistance based on black box theory. Background technique [0002] The armature slides on the energized guide rail to form a contact resistance. During the sliding process, affected by factors such as gaps, heat generated by friction, and deformation caused by heat, the resistance between the two will continue to change. The existing technology has not been able to analyze the contact resistance. method of change. Contents of the invention [0003] The invention discloses a method for analyzing the change law of contact resistance based on the black box theory, which can analyze the change law of resistance between contact conductors and is beneficial to improve the precision of controlling the contact conductors. [0004] The present invention is realized through the following technical solutions: [0005] The method for analyzing the change law of contact resistance impeda...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 杨玉东尹晓琦付成芳季仁东
Owner HUAIYIN INSTITUTE OF TECHNOLOGY
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