Title:
FLAT MULTI-LAYER COIL STATOR FOR DISK MOTOR
Document Type and Number:
WIPO Patent Application WO/2021/003586
Kind Code:
A1
Abstract:
A flat multi-layer coil stator for a disk motor is provided with stator coils and a flat stator base (1). The stator coils are provided with coil assemblies (2) therein, and the multiple coil assemblies (2) are arranged in a ring or a straight line on the stator base (1). The coil assemblies (2) are formed by stacking an even number of layers of single coils (4) in a direction coinciding with a vertical direction of the stator base (1), each of the single coils (4) consists of an even number of layers of single-layer coils (5) wound from a single wire, and the number of wires in the single-layer coils (5) in an axial direction is one. The multiple coil assemblies (2) are sequentially connected in series by metal wires therebetween to form a coil unit (3), the single coils (4) in the coil unit (3) have the same structural shape and do not overlap in the axial direction, the coil assemblies (2) have the same number of layers, and the single-layer coils (5) in the same single coil (4) have the same winding direction. The motor increases the magnetic flux utilization rate, is applicable to low-power motors having a power less than 30 kilowatts, and does not require an iron core, thereby greatly reducing the volume and weight of a motor while maintaining the same output power, and significantly improving output efficiency.
Inventors:
YU RENWEI (CN)
Application Number:
PCT/CN2019/094798
Publication Date:
January 14, 2021
Filing Date:
July 05, 2019
Export Citation:
Assignee:
YU RENWEI (CN)
International Classes:
H02K23/54
Foreign References:
| CN105375655A | 2016-03-02 | |||
| CN108092435A | 2018-05-29 | |||
| CN206402000U | 2017-08-11 | |||
| US4363988A | 1982-12-14 |
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