Electric reactor based on hollow wire wrap and manufacturing method of electric reactor

Abstract

The invention relates to an electric reactor based on a hollow wire wrap and a manufacturing method of the electric reactor. The electric reactor comprises the hollow wire wrap and an iron core cake, wherein the hollow wire wrap is connected onto the iron core cake in a sleeving manner, and an annular gap is reserved between the hollow wire wrap and the iron core cake; a plurality of I-shaped bar stays are arranged in the annular gap by surrounding the periphery of the outer surface of the iron core cake; the hollow wire wrap and the iron core cake are arranged in a fastening manner through the plurality of I-shaped bar stays. According to the electric reactor based on the hollow wire wrap, provided by the invention, the structure is simple, the machining is convenient, deformation problems of iron core cakes during enwinding with iron core cakes are avoided, the labor intensity of workers is reduced, dangers in the transportation process, particularly of heavier iron core cakes, are avoided; besides, the I-shaped bar stays are arranged, so that the insulation distance between the hollow wire wrap and the iron core cake can be ensured, and air passages between adjacent I-shaped bar stays facilitate heat dissipation, so that heating problems of the hollow wire wrap and the iron core cake are solved.

Description

technical field [0001] The invention relates to the application field of power electronics, in particular to a reactor based on a hollow wire package and a manufacturing method thereof. Background technique [0002] At present, when the reactor is wound into a wire package, two schemes are generally adopted: [0003] Option 1: Wind the coil with the core cake. This method has the following obvious disadvantages: the manufacture of the core cake requires a large amount of adhesive glue, which increases the cost; The manufacturing time of the product is lengthened, making it difficult to achieve mass production; when the coil is wound with an iron core cake, the rotation speed of the chucks on both sides is not synchronized, which leads to the deformation of the core cake, which increases the unreliability and unpredictability of the product; the iron core The weight of the cake is heavy, and the iron core cake needs to be clamped into the winding machine for winding the core...

AI Technical Summary

Problems solved by technology

[0003] Option 1: Wind the coil with the core cake. This method has the following obvious disadvantages: the manufacture of the core cake requires a large amount of adhesive glue, which increases the cost; The manufacturing time of the product is lengthened, making it difficult to achieve mass production; when the coil is wound with an iron core cake, the rotation speed of the chucks on both sides is not synchronized, which leads to the deformation of the core cake, which increases the unreliability and unpredictability of the product; the iron core The weight of the cake is heavy, and the iron core cake needs to be clamped into the winding machine when winding the core cake. The processing is difficult, and the upper and lower clamping increases the labor intensity of the staff.

[0004] Option 2: Wound with a winding core and insulate the iron core with insulating paper. This method is slightly improved compared to the method, but it also has the following obvious defects: winding with a traditional winding core, the core column If it is too close to the winding, it is only insulated by the insulating paper on the outside of the iron core column. In order to fix the winding, an insulating plate is inserted between the insulating paper and the winding, which will easily cause damage to the insulating paper, which will affect the insulation effect and increase the risk of the product. There is no gap between the iron core and the winding behind the board, which affects the heat dissipation effect, and it is easy to generate heat between the winding and the iron core post, reducing product performance

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