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A welding method for long lead pins of board-to-board connectors

A technology of board-to-board connectors and welding methods, which is applied in the direction of welding equipment, printed circuits, manufacturing tools, etc., can solve the problems of difficult control of tin amount, poor product consistency, and difficult operation, so as to achieve accurate control of tin amount and avoid Error, good effect of tin penetration

Active Publication Date: 2016-03-23
NO 771 INST OF NO 9 RES INST CHINA AEROSPACE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For a long time, the welding method of the long pins of the inter-board connector on the printed board assembly has been traditionally soldered with a soldering iron. However, this method has many disadvantages such as difficult operation, low efficiency, and poor product consistency.
And for a four-row board-to-board connector with a pin spacing of 1.27mm, the middle two rows of pins are difficult for soldering iron to enter, soldering is difficult, and the amount of tin is not easy to control

Method used

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  • A welding method for long lead pins of board-to-board connectors
  • A welding method for long lead pins of board-to-board connectors
  • A welding method for long lead pins of board-to-board connectors

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with specific embodiments, which are for explanation rather than limitation of the present invention.

[0024] The invention provides a welding method for the long lead pins of the inter-board connector, which uses hot air to heat the tin ring to realize the welding of the long lead pins of the inter-board connector, and the amount of tin can be controlled while the welding is realized, including the following operating:

[0025] 1) Wrap the solder wire tightly on a support rod with the same diameter as the long lead pin of the inter-board connector, and then cut the solder wire on the support rod. After one side of the solder wire is cut, a piece with openings on both sides is obtained Solder ring, then flatten the solder ring;

[0026] 2) Put one or more flattened solder rings on the bottom of the long lead pins of the connector, lay them flat, and blow hot air into the inter-board connectors to ...

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Abstract

The invention discloses a method for welding a mother-daughter board connector long needle. The method includes the steps that a tin wire tightly winds a supporting bar, wherein the diameter of the supporting bar corresponds to that of the mother-daughter board connector long needle; then the tin wire on the supporting bar is cut, after one side of the tin wire to be welded is cut, a solder ring with openings in two sides is obtained, and then the solder ring is flattened; one or more flattened solder rings are arranged at the bottom of the mother-daughter board connector long needle in a sleeved mode, after the mother-daughter board connector long needle is horizontally arranged, hot air is blown into a mother-daughter board connector to heat the flattened solder rings, the hot air melts the flattened solder rings and enables the flattened solder rings to enter the position between a printing plate and the mother-daughter board connector long needle, after the solder rings are completely molten, the hot air stops being blown, the molten solder rings naturally cool, and the solidified solder rings connect the mother-daughter board connector long needle with the printing plate. The method avoids soldering of long needles distributed densely, avoids difficult operations and errors brought by the operations, and is simple and convenient to operate, and more importantly, control of the amount of tin is more accurate in the welding process.

Description

Technical field [0001] The invention belongs to the technical field of printed board assembly welding, and relates to a welding method for long lead pins of a connector between boards. Background technique [0002] For a long time, the welding method of the long lead pins of the connectors on the printed board components has been the traditional manual soldering iron welding method, but this method has many disadvantages such as difficult operation, low efficiency, and poor product consistency. And for the four-row inter-board connector with a pin pitch of 1.27mm, the middle two rows of pin soldering irons are not easy to enter, soldering is difficult, and the amount of tin is not easy to control. [0003] In recent years, with the rapid development of computer product technology, the requirements for product miniaturization have become higher and higher. The large-scale use of inter-board connectors has become an inevitable trend, and the welding method of long-lead pins of inter-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/012B23K1/20
CPCB23K1/0016B23K1/012B23K1/20B23K2101/42
Inventor 黄文红朱静刘军杜磊
Owner NO 771 INST OF NO 9 RES INST CHINA AEROSPACE SCI & TECH
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