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Welding method, device and system for printed board assembly with fine-pitch connector

A welding method and connector technology, applied in auxiliary devices, welding equipment, printed circuits, etc., can solve problems such as virtual welding and continuous welding, and achieve the effect of improving welding quality and improving welding efficiency.

Active Publication Date: 2019-12-10
SICHUAN JIUZHOU ELECTRIC GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional hand-soldered fine-pitch connectors will produce defects such as continuous welding and virtual welding

Method used

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  • Welding method, device and system for printed board assembly with fine-pitch connector
  • Welding method, device and system for printed board assembly with fine-pitch connector
  • Welding method, device and system for printed board assembly with fine-pitch connector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] figure 1 A schematic flow chart showing the implementation of the soldering method for a printed board assembly including fine-pitch connectors in Embodiment 1 of the present application is shown.

[0035] As shown in the figure, the soldering method of the printed board assembly containing fine-pitch connectors includes:

[0036] Step 101, determining that the printed board assembly contains a fine-pitch connector with screws whose distance from the pin of the fine-pitch connector is less than a preset first distance threshold;

[0037] Step 102, removing the self-contained screws of the fine-pitch connector and replacing them with process screws for assembly;

[0038] Step 103, performing process welding on the pins of the fine-pitch connector by means of selective wave soldering;

[0039] Step 104 , after the welding is qualified, remove the process screws of the fine-pitch connector and assemble the self-contained screws to the fine-pitch connector.

[0040] Prin...

Embodiment 2

[0075] Based on the same inventive concept, the embodiment of the present application provides a welding device for printed board assemblies containing fine-pitch connectors. The principle of the device to solve technical problems is the same as a welding method for printed board assemblies containing fine-pitch connectors Similar, the repetition will not be repeated.

[0076] figure 2 A schematic structural diagram of a soldering device for a printed board assembly including a fine-pitch connector in Embodiment 2 of the present application is shown.

[0077] As shown in the figure, the soldering device of the printed board assembly containing fine-pitch connectors includes:

[0078] The first determination module 201 is configured to determine that the printed board assembly contains a fine-pitch connector with screws whose distance from the pin of the fine-pitch connector is less than a preset first distance threshold;

[0079] The first execution module 202 is used to re...

Embodiment 3

[0096] Based on the same inventive concept, an embodiment of the present application further provides a computer storage medium, which will be described below.

[0097] The computer storage medium stores a computer program thereon, and when the computer program is executed by a processor, the steps of the method for soldering a printed board assembly including a fine-pitch connector as described in Embodiment 1 are implemented.

[0098] The computer storage medium provided by the embodiment of the present application, when performing selective wave soldering of fine-pitch connectors with self-contained screws, uses process screws to assemble the connectors, changing the traditional manual soldering and ordinary wave soldering methods, It solves the problem that the nozzle hits the screw of the connector and the incomplete welding of the pins at the end of the connector during traditional welding, improves the welding quality of the fine-pitch connector, and greatly improves the...

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PUM

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Abstract

The invention relates to a welding method, device and system for a printed board assembly with a fine-pitch connector. The method comprises the steps that the fine-pitch connector, with screws, in theprinted board assembly is determined, wherein the distance between the fine-pitch connector and a fine-pitch connector pin is less than a first preset distance threshold value; the screws of the fine-pitch connector are taken down and replaced by technical screws for assembly; a selective wave crest welding mode is adopted for conducting technical welding on the fine-pitch connector pin; after welding is qualified, the technical screws of the fine-pitch connector are taken down, and the screws are assembled on the fine-pitch connector. By adopting the scheme, a traditional manual welding modeand a common wave crest welding mode are changed, the welding quality of the fine-pitch connector is improved, and the welding efficiency is greatly improved.

Description

technical field [0001] The present application relates to printed board soldering technology, in particular, to a soldering method, device and system for printed board assemblies containing fine-pitch connectors. Background technique [0002] With the miniaturization of electronic products, the assembly density of printed board assembly components is increasing. Spacing connectors, the solder joints and pin spacing of through-hole devices are getting smaller and smaller. This type of connector is characterized by multiple rows of pins and a pin spacing of only 1.27mm. The traditional manual welding process will produce continuous welding, which can no longer meet the micro Soldering requirements for pitch-shaped fine-pitch connectors. [0003] Problems existing in the prior art: [0004] Traditional hand-soldered fine-pitch connectors will produce defects such as continuous welding and virtual welding. Contents of the invention [0005] Embodiments of the present applic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/08B23K3/00B23K3/08B23K101/42
CPCB23K1/085B23K3/00B23K3/08B23K2101/42
Inventor 林小平付维林
Owner SICHUAN JIUZHOU ELECTRIC GROUP
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