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A welding treatment method for glue-filling transformer pins

A processing method and transformer technology, applied in the manufacture of inductors/transformers/magnets, electrical components, packaging/impregnation, etc., can solve problems such as pin pollution, virtual soldering, and damaged pins

Active Publication Date: 2021-02-09
无锡新畅电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to propose a new treatment method for welding the pins of the glue-filled transformer, avoiding the pollution of the epoxy glue to the pins, and solving the above-mentioned problems such as virtual welding, false welding, and damaged pins.

Method used

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Examples

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Embodiment Construction

[0014] The technical solutions of the present invention will be further described below through specific embodiments.

[0015] This preferred embodiment discloses a welding treatment method for glue-filled transformer pins, which includes the following steps:

[0016] Step 1: Pretreatment of paraffin wrapping. The melting point of paraffin is 47-64°C. During operation, melt the paraffin in a heating pot. Dip the pins of the transformer in the pot. The surface of the pins is covered with paraffin. Take it out and cool it to solidify at room temperature. The paraffin is immediately Cured and wrapped on the stitches;

[0017] Step 2: Heating and pre-baking. After the transformer is put into the casing, it enters the oven to remove moisture. The temperature of the oven can reach 100°C. During the dehumidification process, the paraffin on the pins melts again and forms a wax film on the pins;

[0018] Step 3: Pouring glue, pouring epoxy glue into the shell to achieve shock absorpt...

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PUM

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Abstract

The invention discloses a welding treatment method for glue-filled transformer pins. Put it into the shell and enter the oven to dehumidify, the paraffin melts and forms a wax film on the pin; 3) Pouring glue, epoxy glue adheres and solidifies on the wax film of the pin; 4) Tin, the soldering temperature reaches the boiling point of paraffin , the wax film vaporizes, the epoxy glue at the pins falls off, and solders on the smooth pins. The above soldering treatment method for glued transformer pins uses paraffin as the isolation medium, which can easily remove the epoxy glue residue on the pins, without damaging the pins, and does not affect product performance. A pretreatment process of paraffin wax wrapping is added, but multiple times of tinning are reduced. Therefore, the process is simplified as a whole, and the solderability, production efficiency and yield of the product are significantly improved. The design angle is novel and the feasibility is strong.

Description

technical field [0001] The invention relates to the technical field of transformer manufacturing, in particular to a welding treatment method for glue-filled transformer pins. Background technique [0002] Transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. The transformer often needs to be soldered when it is soldered to the PCB. The general process operation method is: put the product into the shell, enter the oven to heat and pre-dry, remove the moisture, and then fill the glue. After the glue is cured, solder the pins. However, no matter whether it is machine or manual glue filling, the pins are easily contaminated, that is, epoxy residues will be attached to the pins. If no treatment is done, there will be false soldering and false soldering between the transformer an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F41/00
CPCH01F41/00H01F41/005
Inventor 陆立峰周晓强
Owner 无锡新畅电子有限公司