Method for manufacturing high tension coil of resin pouring dry type coiling iron core transformer and high tension coil manufactured through method

Abstract

The invention discloses a method for manufacturing a high tension coil of a resin pouring dry type coiling iron core transformer. The method comprises the following steps that a circle of glass cloth plate or a circle of PET plate wraps a coil wire wrapping die, the joint of the glass cloth plate or the joint of the PET plate is pasted firmly through silicone adhesive or double faced adhesive tape, and the glass cloth plate or the PET plate is tightly tightened in a sparse wrapping mode through a glass tape; the two ends of the glass cloth plate or the two ends of the PET plate are inserted into grooves of two end plates of a wire wrapping tile die, and gaps between the two end plates and the grooves are filled with glass cement to be sealed; a pre-stained glass fiber grid plate is wrapped in a surrounding mode; an electromagnetic wire winding is wound; an outer die is arranged in a sleeved mode, resin is poured into the outer die, and the outer die, the two end plates of the wire wrapping tile die and the coil wire wrapping die are removed after the resin is solidified and cooled. The method solves the problems that in the process of manufacturing the high tension coil of the resin pouring dry type coiling iron core transformer, demoulding is difficult, the resin leaks easily and the environment is polluted; the dies are easy to manufacture, reliable and convenient to seal, efficient and high in quality; branching lead-out operation is simple, and welding is firm; branching lead wires are not crossed, space is saved, the short circuit is eradicated, and the process is safe and reliable.

Description

technical field [0001] The invention relates to a method for manufacturing a high-voltage coil of a resin-casting dry-type wound core transformer and a high-voltage coil manufactured by the method, belonging to the technical field of transformer manufacturing. Background technique [0002] Resin cast dry-type wound core transformer is more and more popular in the market because of its excellent energy-saving effect, low noise, excellent electrical strength and mechanical strength, but the manufacturing problems of high-voltage coils, especially the casting problems, have not been well received. A good solution limits the mass production capacity of cast resin dry-type wound core transformers. The biggest problem in the manufacture of high-voltage coils of resin cast dry-type wound core transformers is: due to the structural reasons of wound core transformers, it is difficult to demould the high voltage coils after casting; in addition, because the coil winding mold is assemb...

AI Technical Summary

Problems solved by technology

[0002] Resin cast dry-type wound core transformer is more and more popular in the market because of its excellent energy-saving effect, low noise, excellent electrical strength and mechanical strength, but the manufacturing problems of high-voltage coils, especially the casting problems, have not been well received. Good solution, which limits the mass production capacity of cast resin dry-type wound core transformers

The biggest problem in the manufacture of high-voltage coils of resin cast dry-type wound core transformers is: due to the structure of wound core transformers, it is difficult to demould the high voltage coils after casting; in addition, because the coil winding mold is assembled from multiple tiles, It makes it difficult to seal the inner mold of the pouring mold. During the pouring process, the resin is easy to leak from the gap between the inner molds of the pouring mold to the surface of the tile. After the resin is cured, the difficulty of demoulding is greatly increased.

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