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Electric contact piece with built-in liquid cooling medium and spiral elastic contact element

An elastic contact and electrical contact technology, applied in the direction of contact parts, parts of connecting devices, electrical components, etc., can solve problems such as unusability, reduced reliability, and increased temperature rise, and achieve small insertion force, size and length. Demand reduction, high contact performance effect

Inactive Publication Date: 2017-08-18
SUZHOU HUAZHAN SPACE APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the oblique configuration of the contact fingers of the single-wire coil spring is an unstable configuration; the stress release of the oblique configuration of the product during a long storage period may cause the bite force / insertion force to increase to unusable; during the product life cycle, the bite force and separation Generally, it decreases with the increase of the number of plugging and unplugging, and there is a risk of reduced reliability, such as increased temperature rise and difficulty in meeting higher service life requirements

Method used

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  • Electric contact piece with built-in liquid cooling medium and spiral elastic contact element
  • Electric contact piece with built-in liquid cooling medium and spiral elastic contact element
  • Electric contact piece with built-in liquid cooling medium and spiral elastic contact element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] An electrical contact piece with an elastic contact element, comprising: an elastic contact element 1, the elastic contact element 1 includes a plurality of unit spiral rings 11, and the plurality of unit spiral rings 11 are sequentially connected end to end along a track line; the unit The spiral ring 11 is helically surrounded by a linear conductor. As shown in Fig. Two transition portions 15; the deformable contact portion 12 is arranged as a bent structure, including a guide area 121, a deformation area 122, a protrusion 123 connecting the guide area and the deformation area, and the length of the guide area 121 is less than the length of the deformation area 122 ( That is, the length of the line between the two end points of the guide zone is less than the length of the line between the two end points of the deformation zone), and the protrusion 123 is located on the line between the apex of the first transition portion 14 and the apex of the second transition porti...

Embodiment 2

[0086] In order to improve the stability of the electrical contact piece with elastic contact elements of the present invention and prevent the decrease in electrical conductivity due to deformation, in this embodiment, the difference from Embodiment 1 is that it also includes a support member 2, and the support member 2 It is located inside the elastic contact element 1.

[0087] Further, the outer wall of the support member 2 is partially or completely attached to the inner wall of the elastic contact element 1 to support the elastic contact element 1 .

[0088] In this embodiment, all the outer walls of the support member 2 can be fully attached to the inner wall of the elastic contact element (as shown in Figure 9(a)), at this time, the support member 2 is made of elastic material; or the support member 2 is in contact with the inner wall part of the fixed contact part 13 (as shown in Fig. 9(b) or Fig. 9(c)), which is used to limit the movement distance of the protrusion 1...

Embodiment 3

[0092] When the electrical contact works under high current or in the working state for a long time, a lot of heat will be generated, which will gradually increase the temperature inside the electrical contact. However, high temperature will have a great impact on the electrical conductivity of the electrical contact. Therefore, there is a need for an electrical contact with a built-in liquid cooling medium and an elastic contact element, which can continuously take away the internal heat of the electrical contact during the operation of the electrical contact, so as to ensure that the internal temperature of the electrical contact is constant. Good electrical conductivity of the electrical contact is thereby ensured.

[0093] The difference between this embodiment and embodiment 1 is:

[0094] The electrical contact with elastic contact elements with a built-in liquid cooling medium includes an elastic contact element 1 and a liquid cooling conduit 3 disposed inside the elast...

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Abstract

The invention discloses an electrical contact piece of a spiral elastic contact element with a built-in liquid cooling medium, which comprises a spiral elastic contact element and a liquid cooling conduit arranged inside the spiral elastic contact element, and the spiral elastic contact element includes a plurality of unit spiral rings , a plurality of unit spiral rings are connected end to end along a spiral trajectory; the unit spiral rings are surrounded by linear conductors, and the unit spiral rings include: sequentially connected deformable contact parts, first transition parts, a fixed contact portion and a second transition portion; the deformable contact portion is configured as a bent structure, including a guide area, a deformation area, a protrusion connecting the guide area and the deformation area, the length of the guide area is less than the length of the deformation area, and the protrusion from the side of the median perpendicular to the line connecting the apex of the first transition portion and the apex of the second transition portion. The invention has high contact performance, and its guiding area has both guiding and deforming functions, so that pins or other electrical connecting devices used in conjunction with it can realize electrical contact within a short stroke.

Description

technical field [0001] The invention relates to an electrical contact piece with a spiral elastic contact element with a built-in liquid cooling medium, and belongs to the technical field of electrical contact pieces. Background technique [0002] In electrical connectors, the contact area between pins and sockets in a connector is an important index to measure a contact, especially for connectors working under high current. In the prior art, single-wire helical springs are generally used for multi-contact electrical connection. The retrieved published patents include: CN102427180A, CN102522647A, CN102570115B, CN102810782B, 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 is the angle between the second plane 9 and the first plane 11 , the second ...

Claims

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Application Information

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IPC IPC(8): H01R12/71H01R13/02H01R13/17H01R13/187
CPCH01R12/71H01R13/02H01R13/17H01R13/187
Inventor 陈永生董宝庭
Owner SUZHOU HUAZHAN SPACE APPLIANCE
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