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An electromagnetic pump type double wave crest generator

A technology of wave generator and electromagnetic pump, which is applied in the field of electromagnetic pump type double wave crest generator, can solve the problems that are not conducive to replacement, achieve the effects of compact structure, elimination of shadow area, and control of the formation of oxidized slag

Active Publication Date: 2017-06-30
INNER MONGOLIA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The generator nozzle is designed with an inclination angle, which is not conducive to replacing the plug plate of the generator nozzle

Method used

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  • An electromagnetic pump type double wave crest generator
  • An electromagnetic pump type double wave crest generator
  • An electromagnetic pump type double wave crest generator

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Embodiment Construction

[0025] In the above figures, 1-plug plate, 2-tin pot, 3-insulation asbestos, 4-heating pipe, 5-wide flat wave generator, 6-turbulent wave generator, 7-electromagnetic pump, 8-hexagonal plug , 9-wide flat wave generation pipeline, 10-turbulent wave generation pipeline, 11-crawler heating plate, 12-thermocouple, 13-liquid storage tank, 14-return pipeline, 15-winding, 16-on iron Core, 17-lower iron core, 18-middle iron core, 19-upper pump ditch, 20-lower pump ditch.

[0026]The electromagnetic pump 7 is the core technology of this invention, and consists of an upper iron core 16 wound with a winding 15, an upper pump groove 19, an intermediate iron core 18, a lower iron core 17 wound with a winding 15, and a lower pump groove 20. The structural feature is the quasi-bilateral in-line type, and the iron core is made of silicon steel sheets bonded together. The middle iron core 18 is placed between the upper pump ditch 19 and the lower pump ditch 20, the upper iron core 16 is place...

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Abstract

The invention relates to an electromagnetic pump type double-wave crest generator, which belongs to the field of microelectronic lead-free soldering. The invention is a core technology invention aiming at the drawbacks of existing lead-free wave crest generators, such as easy formation of oxidized slag and difficulty in ensuring welding quality. The electromagnetic pump includes: an upper iron core and its windings, a lower iron core and its windings; an upper pump ditch is arranged below the upper iron core, a lower pump ditch is arranged above the lower iron core, and the length of the upper iron core is less than or equal to the lower iron core; The upper pump channel is connected to the turbulent wave generator through the turbulent wave generating pipeline, and the lower pump channel is connected to the wide flat wave generator through the wide flat wave generating pipeline. The wave crest generator uses a three-phase asynchronous induction electromagnetic pump as the power source, which can realize the separate control of the peak heights of turbulent waves and wide flat waves, and achieve the design concept of "one pump with two drives", and can adapt to the welding production of different PCB circuit boards. At the same time, the meticulous design greatly reduces the contact area between solder and air and the amount of solder added, effectively controlling the formation of lead-free solder oxide slag.

Description

technical field [0001] The invention relates to an electromagnetic pump type double-wave crest generator, which is suitable for automatic electronic micro-connection equipment in through-hole technology (THT) and surface assembly technology (SMT), and belongs to the field of lead-free wave soldering. Background technique [0002] With the development of the lead-free process of electronic products, lead-free soldering technologies such as lead-free solder, lead-free flux, and lead-free PCB put forward new requirements for wave soldering machines. Since the soldering temperature of lead-free solder is 30~50°C higher than that of Sn-Pb alloy solder, the traditional mechanical wave soldering machine uses a mechanical pump as the circulation power of the liquid metal solder, and the waveform vortex disturbance formed is relatively large, and the solder is easy to flow during the soldering process. Oxidation forms oxide slag, which increases the production cost of the enterprise....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K3/34B23K1/08B23K3/00
Inventor 陈重毅麻永林白庆伟邢淑清
Owner INNER MONGOLIA UNIV OF SCI & TECH
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