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Double-wave crest generator with electromagnetic pump

A wave generator and electromagnetic pump technology, applied in the field of electromagnetic pump type double wave peak generators, can solve problems such as being unfavorable for replacement, and achieve the effects of compact structure, increased power, and elimination of shadow areas

Active Publication Date: 2014-10-29
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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  • Double-wave crest generator with electromagnetic pump
  • Double-wave crest generator with electromagnetic pump
  • Double-wave crest generator with electromagnetic pump

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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 a double-wave crest generator with an electromagnetic pump, belongs to the field of microelectronic lead-free welding and aims at overcoming the disadvantages that the existing lead-free wave crest generator is prone to form oxidizing slag, the welding quality is difficult to guarantee and the like. The electromagnetic pump comprises an upper iron core and a winding thereof, and a lower iron core and a winding thereof; an upper pump ditch is arranged under the upper iron core, while a lower pump ditch is arranged under the lower iron core, and the upper iron core is shorter than or as long as the lower iron core; the upper pump ditch is connected with a turbulent wave generator by use of a turbulent wave generation pipeline, while the lower pump ditch is connected with a wide plane wave generator by use of a wide plane wave generation pipeline. The wave crest generator is capable of performing respective control on the crest heights of the turbulent wave and the wide plane wave and realizing the design concept of dual driving with one pump by taking a three-phase asynchronous inductive electromagnetic pump as the power source, and thus is applicable to the welding production of different PCBs (Printed Circuit Boards). Meanwhile, due to rigorous design, the solder-air contact area and the dosage of the solder are greatly reduced, and the formation of the lead-free solder oxidizing slag is effectively controlled.

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 Applications(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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