Winding technology of transformer and transformer manufactured with winding technology

Abstract

The invention discloses a winding technology of a transformer and the transformer manufactured with the winding technology, and relates to the technical field of transformers. The winding technology of the transformer includes the steps that stranded parts of stranded wires are wrapped with first insulation tape; the stranded wires penetrate through the inner side of a wire feeding groove from the outer side of the wire feeding groove; the stranded wires are pressed on the inner side of the side wall of a rubber core; the stranded wires located on the inner side of the wire feeding groove are fixed on the rubber core through second insulation tape. The hidden danger problem of incompact parts of the stranded wires and the hidden danger problem of inter-turn short circuits are solved, the previous problem that as the tape is not fixed and also moves when a winding machine rotates, winding wires are broken is solved, the reliability of the transformer is improved, and the service life of the transformer is prolonged; meanwhile, the manufacturing efficiency of the transformer is higher, and the reject ratio is lower.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a transformer winding process and a transformer made by the winding process. Background technique [0002] In power transformer products, very thin enameled wires are often used in the primary stage. At this time, multi-strand wires are required at the inlet and outlet ends to prevent the enameled wire from breaking during the winding process and soldering process. In the case of multi-strand wires, the starting end of the twisted wires cannot be completely twisted, otherwise it will be broken due to excessive twisting. Generally, there will be a small part of the tail end that is not twisted and is in a loose state. However, in the follow-up In the process of winding with an automatic winding machine, due to the high speed of the winding machine, the loose part of the twisted wire (with a thread end) is easily taken up by the subsequent winding, and even brought from the bo...

AI Technical Summary

Problems solved by technology

In the case of multi-strand wires, the starting end of the twisted wires cannot be completely twisted, otherwise it will be broken due to excessive twisting. Generally, there will be a small part of the tail end that is not twisted and is in a loose state. However, in the follow-up In the process of winding with an automatic winding machine, due to the high speed of the winding machine, the loose part of the twisted wire (with a thread end) is easily taken up by the subsequent winding, and even brought from the bottom to the middle layer, it is very easy to cause inter-turn short circuit after the transformer works for a long time, or cause ignition and burnout at the moment of power-on due to voltage difference, thus affecting the life of the transformer

[0003] In order to solve this problem, such as Image 6 As shown, use a small piece of insulating tape to wrap the loose part of the starting end of the twisted wire, which can wrap the twisted wire end and prevent the untwisted loose part of the starting wire from forming a flying wire, but in the actual During the production, a new problem appeared: that is, because the tape was wrapped inside the wire package and the tape was not fixed, the tape would affect the winding of the enameled wire when the winding machine rotated the wire quickly. , generally the sharp corners of the tape scratch the enameled wire, and even cause the enameled wire to break

In actual production, there are many defective products that are broken due to being scraped by the tape. Therefore, it is urgent to improve the current winding process.

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