Novel winding motor stator

A stator and winding technology, applied in the shape/style/structure of winding conductors, electrical components, electromechanical devices, etc., can solve the difficulty of winding and unwinding of square coils, difficult to use manual or mechanical unwinding, and motor back EMF High problems, to achieve the effect of reducing the amount of copper used, the size of the end, and the insulation area of ​​the wire

Pending Publication Date: 2017-12-19
CHINA FIRST AUTOMOBILE
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Problems solved by technology

However, compared with circular coils, square coils have difficulties in coil winding and offline, and it is difficult to use manual or mechanical offline coils.
[0004] Patent Document 1 (CN200780022091.7) and Patent Document 2 (CN201510789339.9) disclose a multi-set segmented hairpin winding, using square coils for winding motor windings, but their disclosed connection methods are complicated, which is not conducive to Production; P

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[0026] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0027] figure 1 Figure 2(a) is a cross-sectional schematic diagram of the stator core of the stator of the novel winding motor of the present invention; Figure 2(b) is the novel winding of the present invention A partial enlarged view of the section of the stator core of the stator of the motor; image 3 It is a schematic diagram of the structure of the hairpin used in the stator of the novel winding motor of the present invention; Figure 4 It is a structural schematic diagram of the hair pin used in the stator of the novel winding motor of the present invention; Figure 5 Fig. 6(a) and Fig. 6(b) are schematic diagrams of the winding distribution of the stator windings of the stator of the novel winding motor according to an embodiment of...

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Abstract

The invention discloses a stator of a novel winding motor, comprising a stator core body and a stator winding, the stator core body has 48 rectangular stator slots separated by a predetermined distance, and the stator winding is formed by a combination of hair clips and hair pins , the hairpins and hairpins are inserted into the stator slots according to a predetermined arrangement and are welded and connected to each other according to certain rules through a bending process to form the stator windings. The cross-sectional shape of the hairpins and the hairpins is square The hairpins and the hairpins form the first to fourth layers in the stator slots of the stator core along the radial direction of the stator core and are arranged sequentially from outside to inside in the radial direction of the stator. The invention can solve the contradictory problem between the performance and volume of the generator, reduce the height of the end of the stator winding of the generator, reduce the overall volume of the generator, increase the slot full rate of the winding, and improve the performance of the generator.

Description

technical field [0001] The invention relates to an alternator for a new energy vehicle, in particular to a stator of a novel winding motor with a compact structure and a high-performance generator. Background technique [0002] With the rapid development of new energy vehicle technology, the performance requirements for alternators are getting higher and higher. The increase in performance will inevitably lead to an increase in the volume of the generator, but the space size of the engine room of new energy vehicles, especially light hybrid vehicles, is very limited. , leading to the increasingly prominent contradiction between the performance and volume of the generator. [0003] At the same time, generators can be classified into distributed winding generators and concentrated winding generators according to the stator coil winding scheme. Distributed winding generators can be divided into circular coils and square coils according to the cross-sectional shape of the stato...

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Application Information

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IPC IPC(8): H02K1/16H02K3/12H02K3/04H02K3/28
CPCH02K1/165H02K3/04H02K3/12H02K3/28H02K2213/03
Inventor 郭守仑苍衍王金昊曾金玲宫健孟凡胜
Owner CHINA FIRST AUTOMOBILE
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