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A 60-slot 8-pole double-layer fractional slot winding structure

A double-layer fractional slot and winding structure technology, applied in the electrical field, can solve the problems of high vibration and noise, small motor torque, etc., and achieve the effects of increased power, small torque fluctuation, and increased speed regulation range

Active Publication Date: 2017-03-22
华域汽车电动系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a 60-slot, 8-pole, double-layer, fractional-slot winding structure. The 60-slot, 8-pole, double-layer, fractional-slot winding structure should solve the problem of small torque and vibration of motors used in electric vehicles in the prior art. Noisy technical issues

Method used

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  • A 60-slot 8-pole double-layer fractional slot winding structure
  • A 60-slot 8-pole double-layer fractional slot winding structure
  • A 60-slot 8-pole double-layer fractional slot winding structure

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Embodiment 1

[0028] Such as figure 1 , figure 2 , image 3 with Figure 14 As shown, a 60-slot 8-pole double-layer fractional-slot winding structure of the present invention includes a stator 1 and a rotor 4 of a three-phase synchronous motor. The stator 1 has a cylindrical inner cavity, and the rotor 4 Coaxially arranged in the inner cavity of the stator 1, wherein the stator 1 includes 60 slots, and the rotor 4 includes 8 electrodes 3, or the rotor 4 includes 60 slots, and The stator 1 includes 8 electrodes 3, the stator 1 or the rotor 4 includes more than two wave windings 2, and the pitch of any one of the wave windings 2 is 6 or 7, and each slot is divided into upper and lower two. Layer winding, each coil is composed of the upper side of one slot and the upper side of another slot

[0029] Furthermore, the stator 1 or the rotor 4 includes a first winding, a second winding, and a third winding. The inner wall of the stator 1 is evenly provided with 60 grooves parallel to the axial dire...

Embodiment 2

[0032] Such as Figure 4 , Figure 5 , Image 6 As shown, a 60-slot 8-pole double-layer fractional-slot winding structure of the present invention includes a stator 1 and a rotor 4 of a three-phase synchronous motor. The stator 1 has a cylindrical inner cavity, and the rotor 4 Coaxially arranged in the inner cavity of the stator 1, wherein the stator 1 includes 60 slots, and the rotor 4 includes 8 electrodes 3, or the rotor 4 includes 60 slots, and The stator 1 includes 8 electrodes 3, and the stator 1 or the rotor 4 includes more than two stacked windings. The pitch of any one of the stacked windings is 6, and each slot is divided into upper and lower windings. Each coil is composed of the upper side of one slot and the upper side of the other slot. Among the 5 coils under each pair of poles, the first three coils are stacked in one direction, and the last two coils are stacked in the opposite direction.

[0033] Further, the windings are combined into 1 branch, or 2 branches, o...

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Abstract

A 60-slot 8-electrode double-layer fractional-slot winding structure comprises a stator and a rotor of a three-phase synchronous motor. The rotator is arranged in an inner cavity of the stator. The stator comprises 60 slots and the rotor comprises 8 electrodes, or the rotor comprises 60 slots and the stator comprises 8 electrodes. The stator or the rotor comprises a plurality of wave windings, wherein the pitch of any wave winding is 6 or 7; each slot is divided into upper and lower two layers of windings; and each coil is formed by an upper layer edge of one slot and an upper layer edge of the other slot. Or, the stator or the rotor comprises a plurality of lap windings, wherein the pitch of each lap winding is 6; each slot is divided into upper and lower two layers of windings; each coil is formed by an upper layer edge of one slot and an upper layer edge of the other slot; for 5 coils of each pair of electrodes, the front three coils are in lap winding in one direction, and the rest two coils are in lap winding in the reverse direction. The structure has the advantages of small torque fluctuation and low counter electromotive force harmonic content during high rotating speed; and power in the whole operation rotating speed range can be improved.

Description

[0001] Technical field: [0002] The invention relates to the electrical field, in particular to a three-phase synchronous motor, in particular to a 60-slot 8-pole double-layer fractional slot winding structure. [0003] Background technique: [0004] The application of electric vehicles is getting more and more attention. Electric cars are equipped with electric motors to provide power. In the prior art, the performance of motors used in electric vehicles is unsatisfactory, with low torque and high vibration and noise. [0005] Summary of the invention: [0006] The purpose of the present invention is to provide a 60-slot 8-pole double-layer fractional-slot winding structure. The 60-slot 8-pole double-layer fractional-slot winding structure solves the problem of low torque and vibration of electric motors in the prior art. Technical problems with high noise. [0007] The 60-slot 8-pole double-layer fractional-slot winding structure of the present invention includes a stator and a roto...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K19/00H02K3/20H02K1/16H02K1/26
Inventor 李周清蒋卿正曹红飞
Owner 华域汽车电动系统有限公司
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