Insulation paper, double-layer winding wire embedded stator, motor and wire embedding method

A double-layer winding and insulating paper technology, which is applied in winding, laying solid insulation, and manufacturing motor generators, etc., can solve the problems of phase-to-phase insulating paper skew, insulation breakdown, and easy damage to the enameled wire insulation layer, making it difficult to move and improve The effect of stability

Inactive Publication Date: 2016-10-26

CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST

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AI-Extracted Technical Summary

Problems solved by technology

[0003] However, in the process of separating the two-phase windings with a scribing rod, it is easy to damage the enameled wire insulation layer of the windings, and it may also cause phase misalignment of a single wire, resulting in insulation breakdown...

Method used

...

Abstract

The present invention discloses insulation paper. The insulation paper comprises interlayer insulation paper, first interphase insulation paper and second interphase insulation paper, wherein the interlayer insulation paper, the first interphase insulation paper and the second interphase insulation paper are of an integral structure. After a low-layer winding is embedded in a winding groove, the interlayer insulation paper of the insulation paper is embedded in the winding groove, and the first interphase insulation paper and the second interphase insulation paper are arranged properly, and then, an upper-layer winding is embedded in the winding groove, and therefore, the insulation layers of the enameled wires of the windings will not be damaged by a scribing rod; and the interlayer insulation paper, the first interphase insulation paper and the second interphase insulation paper are of the integral structure, the interlayer insulation paper, the first interphase insulation paper and the second interphase insulation paper can drag each other, and therefore, the first interphase insulation paper and the second interphase insulation paper have little possibility of moving, and thus, the stability of the first interphase insulation paper and the second interphase insulation paper can be improved. The invention also discloses a double-layer winding wire embedded stator, a motor and a wire embedding method.

Application Domain

Windings insulation shape/form/constructionMagnetic circuit stationary parts +1

Technology Topic

StatorInsulation layer +1

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Experimental program(1)

Example Embodiment

[0027] The invention provides an insulating paper, which does not need to use a scribing rod, thereby protecting the enameled wire insulation layer of the winding from being damaged by the scribing rod. In addition, the insulating paper with an integral structure improves the first phase insulation The firmness of the paper and the second interphase insulating paper.

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0029] In a specific embodiment of the present invention, the insulating paper includes an interlayer insulating paper 1 , a first interphase insulating paper 2 and a second interphase insulating paper 3 .

[0030] The interlayer insulating paper 3 is embedded in the winding slot 4, and is located between the upper layer winding 6 and the lower layer winding 5, so as to realize the insulation between layers. The first interphase insulating paper 2 and the second interphase insulating paper 3 are respectively located at both ends of the double-layer winding inlaid wire stator, and are located between the upper winding 6 and the lower winding 5 to realize phase-to-phase insulation. In particular, the insulating paper in this embodiment has an integrated structure, that is, the interlayer insulating paper 1 , the first interphase insulating paper 2 and the second interphase insulating paper 3 are in an integrated structure.

[0031] After inserting the lower layer winding 5 into the winding slot 4, insert the interlayer insulating paper 1 of the insulating paper into the winding slot 4, and arrange the first interphase insulating paper 2 and the second interphase insulating paper 3, and then place the winding It is enough to embed the upper layer winding 6 in the slot 4, instead of separating the two-phase windings with a scribing rod after the upper layer winding 6 and the lower layer winding 5 are embedded, thereby protecting the enameled wire insulation layer of the winding from being damaged by the scribing rod. In addition, since the first interphase insulating paper 2, the second interphase insulating paper 3 and the interlayer insulating paper 1 are integrally structured, they are mutually involved, so the first interphase insulation sandwiched between the upper winding 6 and the lower winding 5 The paper 2 and the second interphase insulating paper 3 are not easy to move, thereby improving the stability of the first interphase insulating paper 2 and the second interphase insulating paper 3 and preventing insulation breakdown.

[0032] In a specific embodiment of the present invention, the first interphase insulating paper 2 and the second interphase insulating paper 3 are respectively connected to both ends of the interlayer insulating paper 1, and the first interphase insulating paper 2, the second interphase insulating paper 3 and the layers The insulating paper 1 forms a single bracket shape, and the insulating paper of this shape is suitable for most stators with double-layer winding embedded wires.

[0033] In a specific embodiment of the present invention, the first interphase insulating paper 2 and the interlayer insulating paper 1 are connected in an arc transition, thus ensuring the firmness of the connection between the first interphase insulating paper 2 and the interlayer insulating paper 1, thereby ensuring The stability of the first interphase insulating paper 2.

[0034] In the same way, the second interphase insulating paper 3 and the interlayer insulating paper 1 are also connected in a circular arc transition.

[0035] The present invention also provides a double-layer winding embedded wire stator, including insulating paper, the insulating paper is any one of the above-mentioned insulating papers, the above-mentioned insulating paper has the above-mentioned effect, and the double-layer winding embedded wire stator with the above-mentioned effect also has the above-mentioned effect , so it will not be repeated in this paper.

[0036] The present invention also provides a wire embedding method, based on the above-mentioned insulating paper, comprising the following steps:

[0037] Embedding one side of the winding of the first phase into the lower layer of the winding slot 4, the winding of the first phase is the lower winding 5;

[0038] Insert the interlayer insulating paper 1 of the insulating paper into the winding slot 4, and regularize the first interphase insulating paper 2 and the second interphase insulating paper 3;

[0039] One side of the winding of the second phase is embedded in the upper layer of the winding slot 4 , and the winding of the second phase is the upper layer winding 6 .

[0040] In this method, the use of a scribing rod is avoided, thereby protecting the enameled wire insulation layer of the winding from being damaged by the scribing rod. In addition, when the interlayer insulating paper 1 is embedded, the first interphase insulating paper 2 and the second interphase insulating paper 3 are also embedded, thereby saving man-hours and improving production efficiency.

[0041] The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

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Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

Not easy to move
Improve stability

Insulation paper, double-layer winding wire embedded stator, motor and wire embedding method

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

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Description & Claims & Application Information

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