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Soldering stove with pin protection block type kettle port

A technology with protection blocks and pins, applied in the direction of assembling printed circuits with electrical components, can solve the problems of affecting welding quality, high equipment requirements, pressure fluctuations affecting welding area and welding quality, etc., to improve work efficiency and reduce equipment. requirements, the effect of reducing the spread of the welding surface

Inactive Publication Date: 2008-05-21
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

This kind of structure requires that the PCB board and the spout maintain a relatively constant distance during the soldering process of the solder furnace. A slight change in the distance will directly affect the welding quality and have high requirements for the equipment. In addition, the spout The pressure fluctuation of the tin liquid will also affect the welding area and welding quality

Method used

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  • Soldering stove with pin protection block type kettle port

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Embodiment Construction

[0011] As shown in Figure 1, the spout of the solder furnace with a pin protection block has at least one overflow hole 1 around the spout. The number of overflow holes 1 can be set according to the welding area and the pressure of the spout. A pin protection block 2 is provided outside the edge of the mouth, and a pin through hole 3 is opened on the pin protection block. The height of the tin overflow hole 1 from the tin outlet of the pot mouth is 2-10 mm, the shape of the tin overflow hole 1 is triangular, and the three sides are excessively connected by rounded corners.

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Abstract

The invention relates to a soldering furnace used for welding printed circuit board (PCB), in particular to a mouth for a soldering furnace, which is characterized in that at least a tin spilling hole is arranged at the periphery of the mouth; a pin protection block is arranged at the outer flank of the mouth and a pin perforation is arranged on the pin protection block; the tin spilling hole with a conic multilateral opening at the bottom is 2 to 10mm lower than the tin outlet of the mouth. The invention has the advantages that the PCB can be directly arranged at the mouth by arranging the tin spilling hole to spill tin, lowering the requirement for equipment, improving work efficiency and decreasing effectively the influence of the pressure fluctuation at the mouth on the welding quality of the PCB; the quality drawbacks as wide welding area and deficient welding due to the pressure fluctuation when welding the PCB can be reduced; besides, the welding-free protection of the pin device near the mouth can be achieved.

Description

technical field [0001] The invention relates to a tin furnace component used for PCB board soldering, in particular to a tin furnace spout. Background technique [0002] When the usual wave soldering adopts the spout structure to weld the PCB board above the spout, the spout of the tin furnace is designed as a flat mouth. Keep a certain distance, on the one hand to ensure that the tin liquid sprayed from the spout can weld the electrical components on the upper PCB board, and at the same time ensure that the tin liquid sprayed from the spout can be discharged from the spout in time to prevent the spout from Excessive pressure will affect the welding quality. This kind of structure requires that the PCB board and the spout maintain a relatively constant distance during the soldering process of the solder furnace. A slight change in the distance will directly affect the welding quality and have high requirements for the equipment. In addition, the spout The pressure fluctuat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/34
Inventor 严仕兴
Owner 苏州明杰自动化科技有限公司
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