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An electrical connector pin micro-displacement detection device

A technology of electrical connectors and detection devices, which is applied in the direction of measuring devices, electrical devices, instruments, etc., can solve the problems of large temperature influence, short service life, and low precision, and achieve small temperature influence, long service life and high precision Effect

Active Publication Date: 2018-12-14
南京长亚轨道交通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the above-mentioned prior art, the problems solved by the present invention are: the device measured by the traditional inductive method has short service life, low precision, is greatly affected by temperature, and consumes a lot of power

Method used

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  • An electrical connector pin micro-displacement detection device
  • An electrical connector pin micro-displacement detection device
  • An electrical connector pin micro-displacement detection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 and 2 As shown, an electrical connector pin micro-displacement detection device includes a detection capacitance block 5, a detection base 6, and a displacement assembly. The detection capacitance block 5 is installed on the detection base 6 . The lower end surface of the detection capacitance block 5 and the upper end surface of the detection base 6 are connected together, and both the detection capacitance block 5 and the detection base 6 are block structures. The detection capacitance block 5 and the detection base 6 are provided with a plurality of guide holes 7 vertically penetrating through the upper end surface of the detection capacitance block 5 and the lower end surface of the detection base 6, such as image 3 As shown, the guide holes may be distributed in an array according to the position distribution of the pins to be detected, and specifically may be an array distribution structure of 3 rows and 5 columns. The concrete setting mode of...

Embodiment 2

[0023] This embodiment refers to Embodiment 1, the difference is that the position adjustment device 3 can be an adjustment screw, and the inner wall of the guide hole 7 on the detection base 6 is provided with an internal thread, and the adjustment screw can be rotatably threaded and connected to the guide hole on the detection base 6 7, so that the positioning device 3 can be rotated to change the up and down displacement, so that the compression amount of the elastic damping element 2 can be adjusted. The adjustment structure of this embodiment is convenient and fast.

Embodiment 3

[0025] This embodiment refers to embodiment 1, the difference is that, as Figure 4 As shown, the detection capacitance block 5 and the guide holes 7 on the detection base 6 are distributed in an array structure of two rows and five columns.

[0026] In the present invention, the pin to be detected can be inserted into the end face of the detection capacitance thimble 1 of the present invention, so that the detection capacitance thimble 1 is displaced by the deformation of the elastic damping element 2, so that the detection capacitance thimble 1 and the detection capacitance block 5 form a variable-area capacitor. The capacitance value of the area capacitor changes, so that the displacement signal is converted into a change signal of the capacitance value, and the detection capacitance block 5 and the position adjustment device 3 are connected to the external detection circuit through a lead wire, so that the detection capacitance thimble 1 and the elastic damping element 2 ,...

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Abstract

The invention discloses an electrical connector pin micromovement detection device, comprising a detection capacitance block, a detection base and a displacement module. The detection capacitance block is installed on the detection base; the detection capacitance block and the detection base are provided with a plurality of guiding apertures vertically penetrating the upper end surface of the detection capacitance block and the lower end surface of the detection base; the displacement module is installed in the guiding apertures, and comprises a detection capacitance thimble, an elastic damping element and a positioning device which are successively connected and installed in the guiding apertures from top to bottom; the positioning device can move up and down in the guiding apertures of the detection base. According to the invention, the capacitance value of a variable area capacitor changes so as to convert a displacement signal into a capacitance value change signal for measurement; the method is unique and novel, and has the characteristics of long service life, high precision, small temperature influence and low power consumption.

Description

technical field [0001] The invention relates to the field of electrical detection, in particular to an electrical connector pin micro-displacement detection device. Background technique [0002] Electrical connectors are widely used in subways, trains, mechanical engineering and other fields. Among them, the detection of micro-displacement of electrical connector pins is of great significance to the research and design of electrical connectors. The traditional resistance strain gauge type "stress deformation displacement" detection method is a kind of resistance strain gauge sensor pasted on the reference metal body with standard cross-sectional area and standard stress length, which is specially used to measure the steel body when it is under elastic stress. Method and device for generating strain displacement. Since the detected object is subjected to the action of external force, it will produce corresponding deformation, and the "stress deformation displacement" detecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B7/02
CPCG01B7/02
Inventor 刘海强陈维忠薛娟
Owner 南京长亚轨道交通科技有限公司