Electric contact part with elastic double spiral wire winding type contact element

A technology for contact elements and electrical contacts, applied in contact parts, cooling/ventilation/heating transformation, etc., can solve the difficulty in meeting the reliability and long life requirements of electrical connection structure contacts, and the increase in occlusal force/insertion force , reliability reduction and other issues, to achieve the effect of improving electrical contact reliability, reducing performance degradation, and improving contact performance

Inactive Publication Date: 2017-06-13
SUZHOU HUAZHAN SPACE APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the contact finger structure of the single-wire coil spring is an unstable structure. After a long storage period, the stress of the spring finger structure is released, which may cause the bite force / insertion force to increase to unusable; during the life cycle of the contact piece, the bite force The separation force and separation force decrease with the increase of the number of plugging and unplugging, there is a risk of reduced reliability, and it is difficult to meet the requirements for reliability and longer life of the contacts in the electrical connection structure

Method used

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  • Electric contact part with elastic double spiral wire winding type contact element
  • Electric contact part with elastic double spiral wire winding type contact element
  • Electric contact part with elastic double spiral wire winding type contact element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] refer to figure 1 and figure 2 As shown, a plurality of winding slots 11 are provided on the outer periphery of the support member 1, and the two ends of each winding slot 11 respectively extend to both ends of the support member 1; each conductive member 2 is respectively wound around the outer periphery of the support member 1 along a single winding slot 11 , and the plurality of conductive members 2 can be conducted with each other.

[0036]The support member can adopt circular, elliptical, square, polygonal or other shaped wires in cross-section. After the wire winding groove is provided, the outer periphery of the support member cross-section is zigzag. The winding groove provided on the outer periphery of the support member can guide and support the conductive member. The supporting member can be a conductor or an insulator, and since the supporting member mainly plays the role of supporting its external conductive member, its conductive performance can be sel...

Embodiment 2

[0038] In this embodiment, no winding groove is provided on the periphery of the support 1 , but the outer surface is smooth, and the conductive member 2 is directly wound around the smooth outer periphery of the support to form an elastic winding contact element. When the elastic wire-wound contact element is bent as a whole, the supporting member 1 can also support the externally wound conductive member 2, thereby improving the structural stability and prolonging the service life. This embodiment is not regarded as the focus of the protection of the present invention, and will not be described in detail.

Embodiment 3

[0040] On the basis of Embodiment 1 or Embodiment 2, in this embodiment, the elastic wire-wound contact element formed by winding the conductive member 2 on the support member 1 is integrally bent, that is, the support member is bent into a ring shape, and the ring-shaped elastic wire-wound contact element The contact element can be applied to the pin or socket, and the electrical connection performance is reliable. In this case, in order to finally form a multi-contact conductive whole between the multiple conductive parts 2, that is, the multiple conductive parts can be electrically connected to each other, the winding method of the multiple conductive parts on the support There are also many kinds, and the following preferred winding grooves are arranged in parallel on the outer periphery of the support member in a spiral manner to expand the embodiment:

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PUM

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Abstract

The invention discloses an electrical contact piece with an elastic double-helix winding contact element. The elastic double-helix winding contact element includes a support piece and a plurality of wire-shaped conductive pieces; the support piece is bent in a spiral shape, and the support piece The outer circumference is provided with a plurality of winding slots, and the plurality of winding slots are spirally arranged on the outer circumference of the support member in parallel with each other, and the two ends of each winding slot extend to the two ends of the support member respectively; each conductive member is wound along a single winding slot on the outer periphery of the support member, and the plurality of conductive members can be connected to each other. The invention improves the structural stability of the elastic contact element through the combination of the spiral winding and the spiral support, thereby ensuring the reliability of the electrical connection of the elastic contact element and the electrical contact element to which it is applied, and has a longer service life. The double-helix elastic winding contact element itself has better elasticity and improved contact performance, and can be applied to various occasions with different electrical connection intervals.

Description

technical field [0001] The invention relates to the technical field of electrical connectors, in particular to an electrical contact piece with elastic double-helix winding contact elements. Background technique [0002] In electrical connectors, the contact area of ​​the electrical connection is an important indicator to measure the reliability of the connection, especially the electrical contacts or electrical connectors working under high current. In the electrical contacts of the prior art, such as pin contacts or socket contacts, the single-wire coil spring multi-finger contact is generally used for electrical connection. For example, the retrieved open patents: CN102427180A, CN102570115B are respectively described as follows : [0003] The patent application document with publication number CN102427180A discloses a spring contact finger, a socket and a socket system, wherein the spring contact finger includes an oblique elliptical spring finger, and the first angle 4 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R13/33H05K7/20
CPCH01R13/33H05K7/20
Inventor 陈永生苏雨露
Owner SUZHOU HUAZHAN SPACE APPLIANCE
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