Welder transformer and manufacturing method thereof

Abstract

The invention relates to a welder transformer and a manufacturing method thereof, comprising an iron core, a framework and a winding, wherein the winding is enwound on the framework; the iron core, the framework and the winding have a primary part and a secondary part respectively; the primary iron core and the secondary iron core are an E-shape and an inverted E-shape respectively; when the framework is sheathed on the iron core, the E-shaped iron core and the inverted E-shaped iron core have three flanges, wherein the middle flange is arranged in the through hole inside the framework and the upper flange and the lower flange wrap the upper side and the lower side of the framework respectively; the upper side and the lower side of the framework are respectively provided with two limiting protrusions; the combination surface of the primary iron core and the secondary iron core is provided with a positioning slot and a convex rib respectively; the combination surface of the primary framework and the secondary framework is provided with a clamping trough and a clamping tongue respectively; and the welder transformer and the manufacturing method have the advantages of good magnetic shielding performance, high efficiency and simplified process.

Description

technical field [0001] The invention relates to a small or miniature transformer, in particular to a welding machine transformer. Background technique [0002] Transformer is an essential part of electrical equipment such as welding machines. At present, the process of making such a small or miniature transformer is relatively complicated. The usual processing steps are as follows: first process silicon steel sheets of specific specifications, and weigh the silicon steel sheets according to the size of the transformer. , and fasten the steel and silicon sheets into a transformer core; on the other hand, the coil is wound on the processed skeleton, and the skeleton is made into a primary winding and a secondary winding respectively; next, the primary winding and the secondary winding Put them into the above-mentioned manufactured iron cores respectively, then butt the primary and secondary iron cores and manually weld them into a whole, and then install other accessories. The...

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Problems solved by technology

[0002] Transformer is an essential part of electrical equipment such as welding machines. At present, the process of making such a small or miniature transformer is relatively complicated. The usual processing steps are as follows: first process silicon steel sheets of specific specifications, and weigh the silicon steel sheets according to the size of the transformer. , and fasten the steel and silicon sheets into a transformer core; on the other hand, the coil is wound on the processed skeleton, and the skeleton is made into a primary winding and a secondary winding respectively; next, the primary winding and the secondary winding Put them into the above-mentioned manufactured iron cores respectively, then butt the primary and secondary iron cores and manually weld them into a whole, and then install other accessories. The whole manufacturing process of the transformer is more complicated and the efficiency is lower. Large-scale production cannot be realized; in addition, the current welding machine transformer is usually a structure in which the coil winding wraps the transformer core. Because the magnetic induction line is not completely closed, there is a certain magnetic flux leakage phenomenon, resulting in low transformer efficiency.

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