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Press-fit pin

An uncompressed, arm part technology, applied in the direction of fixed/insulated contact members, electrical components, connections, etc., can solve problems such as increased contact resistance, insufficient effective contact area, increased contact pressure, etc.

Active Publication Date: 2009-12-02
J S T CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, if the contact pressure is too small, the effective contact area is not enough, which will lead to damage to the reliability of the connection
On the contrary, in the case of increasing the contact pressure by using press-fit pins of large size and shape to obtain a higher contact pressure, a part of the printed circuit board may be cracked due to inappropriate insertion force
In addition, the press-fit pins can be damaged
This may cause an increase in contact resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] figure 1 A perspective view is shown of a press-fit pin inserted into a substrate, such as a printed circuit board, according to an embodiment of the invention. Such as figure 1 As shown, a press-fit pin 1 is press-fitted into a through-hole 3 formed on a printed circuit board 2 . The inner surface 3a of the through hole 3 is plated, and the opening 3b of the through hole 3 forms a part of the outline of a circuit pattern (not shown). A press-fit pin 1 press-fitted into a printed circuit board 2 mechanically secures a male connector thereto (not shown), forming a terminal of the male connector. The male connector mounted to the printed circuit board 2 is configured to connect to a mating connector, ie a female connector, thereby electrically interconnecting the terminals of the two connectors.

[0021] The press-fit pin 1 can be manufactured by punching out a pin of a predetermined shape from a metal plate made of copper alloy, extruding the punched pin, and then twi...

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PUM

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Abstract

A press-fit pin (1) is press-fitted into a conductive via (3) provided on a substrate (2), such as a printed circuit board. The press-fit pin comprises a contact portion (11), a shoulder portion (12), a press-fit portion (13) and a tip portion (14). The contact portion is inserted along with the shoulder portion into the housing of the connector to be mounted on the printed circuit board, thereby forming a terminal of the connector. The press-fit portion extends spirally downward from the lower portion of the shoulder portion and connects to the end portion. The press-fit part has the characteristic of elastic deformation. Therefore, the press-fit portion interferes with the through hole, thereby enabling the press-fit pin to be mechanically fixed to the printed circuit board.

Description

technical field [0001] The present invention generally relates to press fit pins that are press fit into through holes provided on a printed circuit board. Background technique [0002] In recent years, increasing awareness of environmental issues has focused on substituting a joining technology using press-fit pins or compliant pins for soldering joining technology using lead materials. [0003] The press-fit pin connection technology is to insert the press-fit pin (needle-shaped terminal with compression elastic characteristics) into the through hole on the printed circuit board whose diameter is slightly larger than the width of the press-fit pin, thereby generating friction, and the press-fit pin or snap-fit ​​pins are mechanically secured to the printed circuit board. Components such as male connectors are attached to press-fit pins provided on the printed circuit board, thereby enabling lead-free mechanical and electrical interconnections. [0004] The press-fit pin ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R12/34H01R12/55H01R12/58
CPCH01R12/585H01R13/42
Inventor 陈平
Owner J S T CORP
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