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Inner opening L-shaped stannum port of spilled stannum port

A technology of tin outlet and overflowing tin, applied in the field of tin outlet of tin furnace, which can solve the problems of low work efficiency, easy formation of virtual solder joints, and unsuitable for large-scale batch processing.

Inactive Publication Date: 2008-05-14
苏州明杰自动化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the above-mentioned various solders, especially when automatic selective point-to-point wave soldering is used to weld PCBA boards with dense solder joints, the work efficiency is low, it is not suitable for large-scale batch processing, and the joints are easy to form virtual soldering. The invention provides a tin furnace outlet with simple structure, which can effectively improve welding efficiency and ensure the quality of welding joints

Method used

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  • Inner opening L-shaped stannum port of spilled stannum port

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Embodiment Construction

[0012] As shown in Figure 1, an L-shaped tin outlet is opened inside the overflow tin outlet, and the ends of two rectangular tin outlets are fixedly connected into an "L" shape, and the tin outlet inside the "L"-shaped tin outlet is provided with A tin overflow opening 1, which is a rectangular opening with a depth of 2-8 mm.

[0013] As shown in Fig. 2, the tin outlet described in the present invention is mainly applied to the centralized distribution of electronic components 3 on the PCBA board 2 in an "L", and there are other electronic components adjacent to the tin outlet on the outside of the "L" semi-enclosed structure. The device 3 exists, but there is no electronic component 3 inside or it is relatively far away from the tin outlet.

[0014] When in use, place the PCBA board 2 at a predetermined position above the tin outlet, and keep a certain distance between the board plane and the tin outlet, generally controlled at 2-6mm. The shape of the tin outlet can be dete...

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Abstract

The invention relates to a tin furnace part of PCBA board soldering tin, in particular a tin outlet of a tin furnace. Two rectangle ends of the tin outlet are firmly connected with each other into an L-shape. The tin outlet on the lateral side of the tin outlet in L-shape is provided with a tin spill-way which is a rectangle opening with a depth of 2mm to 8mm.The invention has a simple structure and is capable of effectively increasing soldering efficiency and is applicable for large-scale automatic production; furthermore, oxidation layer on molten tin surface layer is effectively prevented from being retained on the surface of the PCBA board, and the quality of soldering spots is ensured.

Description

technical field [0001] The invention relates to a tin furnace component used for PCBA board soldering, in particular to a tin outlet of the tin furnace. Background technique [0002] The usual wave soldering is usually manually operated, and the production efficiency is relatively low. For PCBA boards that require dense soldering points, this soldering method is even more insufficient. In addition, because the tin outlet is too small (generally 2 mm long), it will bring Tin slag blocks the tin outlet, resulting in a large area of ​​virtual soldering; for PCBA boards with denser solder joints, there is also a tin outlet structure, but the usual tin furnace outlet is designed as a flat opening. The soldering operation of the PCBA board generally needs to maintain a distance between the PCBA board and the tin outlet. On the one hand, it is ensured that the tin liquid sprayed from the tin outlet can solder the electrical components on the upper PCBA board. The tin liquid spraye...

Claims

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Application Information

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IPC IPC(8): H05K3/46
Inventor 严仕兴
Owner 苏州明杰自动化科技有限公司
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