A structure and coil production process to improve the qualification rate of low-voltage transformers

Abstract

The invention discloses a coil structure for improving qualified rate of a low-tension mutual inductor, and a production technology thereof, and relates to the technical field of production process oflow-tension mutual inductors. The structure for improving qualified rate of a low-tension mutual inductor includes an iron core, a buffer layer, a copper wire and a coil hoisting frame, wherein the buffer layer wraps the iron core; the copper wire is wound about the buffer layer; the product is moulded and embedded with an insert piece; a mounting base plate is separated; and a product nameplateis automatic embedded. The structure for improving qualified rate of a low-tension mutual inductor can reduce the pressure on the iron core during the production process, and can improve the qualifiedrate. The base plate is detachable and can be recycled, so that the related cost is reduced. The nameplate bonding process is removed, so that the technology is simplified and the labor intensity isreduced.

Description

technical field [0001] The invention relates to the technical field of low-voltage transformer production technology, in particular to a structure and coil production technology for improving the pass rate of low-voltage transformers. Background technique [0002] Such as figure 1 Shown is the structure of the existing low-voltage transformer coil, including the iron core 5 located inside, the copper wire 7 wound on the iron core 5, and the buffer layer 6 wrapped on the outer layer of the copper wire 7 . [0003] Such as figure 2 As shown, to be in figure 1 On the basis of the shown coil, the injection material layer 11 is wrapped. The injection material needs to be pressed into the installation base plate in the mold, and solidified and formed. [0004] The existing process for manufacturing finished transformer coils is as follows: firstly, two halves of the mold are taken, and the two halves of the mold are fastened together to form a cavity with the same shape as th...

AI Technical Summary

Problems solved by technology

[0006] Due to the limitation of manual injection, the injection speed is slow. During the injection process, the exhaust is manually shaken, the exhaust is uneven, and cavitation is easy to form inside. The manual mixing varies greatly each time, and the curing degree and appearance cannot be guaranteed. The casting body is easy to crack after demolding, the coil is easily subjected to contraction pressure, resulting in unqualified errors, and the appearance is prone to color difference and weld marks; the installation base plate is embedded and integrated with the casting body, and the coating of the base plate is easy to be damaged when cleaning the edge material, and Defective products cannot recycle the bottom plate, and the product nameplate needs to be bonded with adhesive materials, which is complicated and labor-intensive

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