Electric connector with wire-stranding elastic contact pin

A technology of elastic pins and electrical connectors, applied in the direction of contact parts, etc., can solve the problem that the parameters cannot be selected arbitrarily, and achieve the effect of increasing the effective contact area, reducing the insertion force and improving electrical reliability

Active Publication Date: 2012-07-11
GUIZHOU SPACE APPLIANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Those skilled in the art can easily understand that these parameters have obvious constraints on each other, that is, any parameter cannot b

Method used

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  • Electric connector with wire-stranding elastic contact pin
  • Electric connector with wire-stranding elastic contact pin
  • Electric connector with wire-stranding elastic contact pin

Examples

Experimental program
Comparison scheme
Effect test

Example

[0046] Comparative example and test example

[0047] Change the needle diameter d to The stranded elastic pin and the traditional inner layer of 3 beryllium bronze wires and the outer layer of 7 beryllium bronze wires are applied to a 100-core connector, respectively. Test verification, under the same conditions as the test sleeve and other conditions, the test results of the connector engagement force, connector separation force, contact separation force (that is, the pin separation force), and the number of plug life cycles are shown in the table 1 shows:

[0048] Table 1 The connector using the pin of the present invention and the connector using the traditional pin

[0049] Test verification data comparison table

[0050]

[0051] Note: The 500-times life of the connector with traditional pins is the data required by GJB2446-95 "General Specification for Shell Positioning Ultra-small Rectangular Electrical Connectors".

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PUM

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Abstract

The invention discloses an electric connector with a wire-stranding elastic contact pin. According to the wire-stranding elastic contact pin, at least two metal wires are arranged on a central layer; a cross section respectively wrapped by each layer of metal wires is round; adjacent metal wires are tightly adhered; the stranding direction of at least one layer of metal wires is opposite to that of the other layers of metal wires; the stranding direction of the outermost layer of metal wires is opposite to that of the adjacent layer of metal wires; the helical angle of the outer layer of metal wires is smaller than that of the inner layer of metal wires; the length of the wire-stranding elastic contact pin is more than or equal to the helical pitch of the outermost layer of metal wires; the outer diameter D of the thickest wire is 1.3 to 1.9 times the outer diameter d of the contact pin; and the span L of the thicker wire is 2.2 to 3.8 times the outer diameter d of the contact pin. According to the electric connector with the wire-stranding elastic contact pin, the wire-stranding elastic contact pin is low in engaging force, so a connector with multiple chips is very easy to manually insert or separate. The electric connector can be applied to the connector with multiple chips.

Description

technical field [0001] The invention relates to an electrical connector with stranded elastic pins, in particular to an electrical connector with high reliability, small insertion force, convenient insertion and extraction, and long service life. Background technique [0002] For electrical connectors with twisted-wire elastic pins, it is necessary to punch fat between the two ends of the twisted-wire elastic pins to form a "bulging" fat point. Through the elastic deformation of the fat point and the rigid plug-in The holes cooperate to form contact pairs of the electrical connector. [0003] U.S. Patent US 3,31,9217 discloses a kind of stranded wire elastic pin (see figure 1 ), which increases the second layer of metal wire 87 on the basis of the core metal wire 88, the outer layer of metal wire 86 is opposite to the spiral direction of the second layer of metal wire 87, the outer layer of metal wire 86, the second layer of metal wire 87 and the core metal The two ends of...

Claims

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Application Information

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IPC IPC(8): H01R13/33H01R13/05
Inventor 韦文革廖朝顺邹作涛李凌志
Owner GUIZHOU SPACE APPLIANCE CO LTD
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