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A test device and method for testing wear and degradation of contact parts in electrical connectors

An electrical connector and test device technology, which is used in the field of test devices for testing the wear and degradation of contact parts in electrical connectors, can solve the problems of large volume and no consideration of precision compensation, and achieves improved test significance, wide design solutions, and improved test results. The effect of precision

Active Publication Date: 2021-09-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The test objects of the existing fretting wear test devices are mostly switch contacts in electrical components. This type of test device has the following disadvantages: (1) The volume is large, and the test objects are switch contacts; (2) Precision compensation is not considered Problem; therefore, it is necessary to design a set of test devices suitable for the fretting wear of the pins and spring wires in the electrical connector, so as to facilitate the research on the degradation of the electrical connector

Method used

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  • A test device and method for testing wear and degradation of contact parts in electrical connectors
  • A test device and method for testing wear and degradation of contact parts in electrical connectors
  • A test device and method for testing wear and degradation of contact parts in electrical connectors

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specific Embodiment approach 1

[0039] A test device for testing the wear and tear degradation of contact parts in an electrical connector. The contact parts in the electrical connector include wire spring wires 12 and pins 10. The test device includes a three-dimensional-R-axis slide table 1 and a contact force sensor 2. , spring wire fixture 3, pin fixture 4, force sensor group 5, electromagnetic vibrating table 6 and base 7, described three-dimensional-R axis sliding table 1 and electromagnetic vibrating table 6 are all fixed on the base 7, described The contact force sensor 2 is fixed on the three-dimensional-R axis slide table 1, the wire spring wire clamp 3 is fixed on the contact force sensor 2, the wire spring wire 12 is fixed on the wire spring wire clamp 3, and the force sensor The group 5 is fixed on the electromagnetic vibrating table 6, the pin fixture 4 is fixed on the force sensor group 5, the pin 10 is fixed on the pin fixture 4, and the pin 10 is placed on the wire The spring wire 12 moves r...

specific Embodiment approach 2

[0047] A test method using the test device described in Embodiment 1, comprising the following steps,

[0048]Step 1: Fix the pin 10 in the pin fixture 4, fix the wire spring wire 12 in the wire spring wire fixture 3, and place the pin 10 above the wire spring wire 12;

[0049] Step 2: According to the design parameters of the electrical connector, the angle between the pin 10 and the spring wire 12 and the contact force are adjusted through the three-dimensional-R-axis slide 1;

[0050] Step 3: Make the contact pin 10 and the wire spring wire 12 pass through the current required by the test;

[0051] Step 4: Open the electromagnetic vibrating table 6, and drive the pin 10 to reciprocate along the axial direction of the pin 10 according to the set frequency and amplitude;

[0052] Step 5: Use the data acquisition board to collect the contact resistance data between the pin 10 and the spring wire 12 during the test, test the real-time amplitude and frequency of the pin 10 thro...

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Abstract

The invention discloses a test device for testing wear and tear of contact parts in an electrical connector, which belongs to the field of electrical connectors. The test device includes a three-dimensional-R-axis slide table, a contact force sensor, a wire spring clamp, a pin clamp, The force sensor group, the electromagnetic vibration table and the base, the three-dimensional-R-axis sliding table and the electromagnetic vibration table are all fixed on the base, the contact force sensor is fixed on the three-dimensional-R-axis sliding table, and the wire spring clamp is fixed on the contact On the force sensor, the wire spring wire is fixed on the wire spring wire fixture, the force sensor group is fixed on the electromagnetic vibration table, the pin clamp is fixed on the force sensor group, the pin is fixed on the pin fixture, and the pin is placed on the Above the wire spring wire and along with the electromagnetic vibrating table to reciprocate along the axial direction of the pin, the present invention drives the pin to move with a certain amplitude and frequency through the electromagnetic vibrating table, and obtains a wire spring electrical connector close to that in use. The mechanical environment is closer to the real working conditions of the parts.

Description

technical field [0001] The invention belongs to the field of electrical connectors, and in particular relates to a test device and method for testing wear and degradation of contact parts in an electrical connector. Background technique [0002] All kinds of electrical connectors are widely used in various electrical circuits. The amount of electrical connectors used on an aircraft can reach hundreds to thousands, involving tens of thousands of circuits. In addition to meeting the electromagnetic performance requirements, electrical connectors should also meet the requirements of reliable contact and convenient maintenance in harsh environments. The reliability of a single electrical connector directly affects the normal operation of the circuit system and involves the safety of the entire host. At present, in electrical connector products, wire spring jacks are widely used because of their high stability and reliability. The main factor affecting the service life of electr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01R31/69
Inventor 李东晖凌三强徐乐翟国富
Owner HARBIN INST OF TECH