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Twist needle light in inserting/pulling force

A light plugging force, twist needle technology, applied in the direction of contact parts, etc., can solve the problems of difficult plugging and plugging, large plugging force, etc., and achieve the effect of improving the effective contact area, improving reliability and flexibility.

Inactive Publication Date: 2009-09-30
GUIZHOU SPACE APPLIANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the insertion and withdrawal force of the ordinary twist needles currently used is relatively large, that is, the force required for the insertion or separation of the twist needles and the jack contacts of a certain specification is relatively large, and with the increase in the number of cores used in the connector, the connector's The total separation force also increases accordingly, making it difficult to unplug the connector during use

Method used

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  • Twist needle light in inserting/pulling force
  • Twist needle light in inserting/pulling force
  • Twist needle light in inserting/pulling force

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] image 3 , Figure 4 It is a view of the twist needle with light insertion and withdrawal force according to Embodiment 1 of the present invention. As shown in the figure, the twist needle contact with light insertion and withdrawal force consists of three copper-based alloy wires as the first layer, and ten copper-based alloy wires as the second layer. After the second layer is reversely twisted with the first layer, it is Shaped after cutting, laser spot welding and fattening. After hinged, the metal alloy wire 2 of the second layer is enveloped into a circle, and the space formed inside is enough to accommodate the metal alloy wire 1 of the first layer. The metal alloy wires 1 of the first layer and the metal alloy wires 2 of the second layer have the same diameter.

Embodiment 2

[0029] Figure 5 , Figure 6 It is the view of the twist needle with light insertion and withdrawal force in the second embodiment of the present invention. As shown in the figure, the twist needle contact with light insertion and withdrawal force consists of three copper-based alloy wires as the first layer, ten copper-based alloy wires as the second layer, sixteen copper-based alloy wires as the third layer, and the second layer The first layer and the first layer are twisted against each other, and the third layer is twisted against the second layer. After hinged, the alloy wires of each layer are enveloped into a circle, and the adjacent layers are closely bonded. After the stranding is completed, it is shaped after cutting, laser spot welding and fattening. The diameters of the first layer metal alloy wire 1 , the second layer metal alloy wire 2 and the third layer metal alloy wire 3 are equal.

[0030] The number of metal alloy wires in each layer is related to the di...

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Abstract

The invention provides a twist needle light in inserting / pulling force, which is twisted from two or more than two layers of metal alloy wires and is obtained by changing the number of the layers of the twist needle, the number of the lengths of the metal alloy wires in each layer and the diameter of the metal alloy wires in each layer. Compared with the prior thicker twist needle equivalent in outer diameter, the twist needle has the advantages of greatly reducing inserting / pulling force, having more contacts in butted connection with jack contact pieces, increasing the effective contact area of the electrical connection between contact pins and jacks, having better flexibility of contact-pin contact pieces and improving the reliability of the electrical connection between the contact pins and the jacks.

Description

technical field [0001] The invention belongs to the technical field of connectors, in particular to a twist pin contact piece with light insertion and withdrawal force. Background technique [0002] Due to the high density and miniaturization of electrical connectors, people have invented twisted wire elastic pins, such as the attached figure 1 , attached figure 2 As shown, its main structural features are: the stranded elastic pin is made of three inner layers and seven outer elastic metal alloy wires twisted twice in two directions; the elastic pin has a fat point, and the needle is docked with the hole At the same time, the seven outer wires at the fat point form seven helical elastic contacts with the inner wall of the socket, which ensures the contact reliability under various environmental conditions. [0003] However, the insertion and withdrawal force of the ordinary twist needles currently used is relatively large, that is, the force required for the insertion or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R13/05H01R13/33H01R13/03
Inventor 韦文革余贵龙郑允王学勇
Owner GUIZHOU SPACE APPLIANCE CO LTD
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