US 12,278,520 B2
Stator and motor
Tianran He, Foshan (CN); Ziqiang Zhu, Foshan (CN); Hong Bin, Foshan (CN); and Liming Gong, Foshan (CN)
Assigned to GUANGDONG MIDEA WHITE HOME APPLIANCE TECHNOLOGY INNOVATION CENTER CO., LTD, Foshan (CN); and MIDEA GROUP CO., LTD., Foshan (CN)
Filed by Guangdong Midea White Home Appliance Technology Innovation Center Co., Ltd., Foshan (CN); and Midea Group Co., Ltd., Foshan (CN)
Filed on Feb. 23, 2022, as Appl. No. 17/679,028.
Application 17/679,028 is a continuation of application No. PCT/CN2020/137744, filed on Dec. 18, 2020.
Claims priority of application No. 201911422872.6 (CN), filed on Dec. 31, 2019; application No. 201922499845.0 (CN), filed on Dec. 31, 2019; application No. 201922500766.7 (CN), filed on Dec. 31, 2019; and application No. 201922501602.6 (CN), filed on Dec. 31, 2019.
Prior Publication US 2022/0181922 A1, Jun. 9, 2022
Int. Cl. H02K 1/14 (2006.01); H02K 1/16 (2006.01); H02K 1/20 (2006.01); H02K 3/28 (2006.01)
CPC H02K 1/148 (2013.01) [H02K 1/16 (2013.01); H02K 1/20 (2013.01); H02K 3/28 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A stator, comprising:
a stator core comprising a plurality of inner stator teeth and a ring-shaped stator yoke, wherein the plurality of inner stator teeth are arranged on an inner side of the stator yoke at intervals along a circumferential direction of the stator yoke, and extend to a central axis of the stator yoke, to form stator slots between adjacent inner stator teeth;
a first phase winding, a second phase winding and a third phase winding, each penetrating through two stator slots which are separated by one stator slot in therebetween, and wound around two adjacent inner stator teeth;
wherein each of the stator slots is divided into an inner space and an outer space along a radial direction of the stator yoke, each of the first phase winding, the second phase winding and the third phase winding penetrates through inner spaces of corresponding two stator slots, or penetrates through outer spaces of the corresponding two stator slots,
the first phase winding comprises a first phase inner winding and a first phase outer winding, the second phase winding comprises a second phase inner winding and a second phase outer winding, the third phase winding comprises a third phase inner winding and a third phase outer winding, wherein each of the first phase inner winding, the second phase inner winding and the third phase inner winding penetrates through inner spaces of the corresponding two stator slots, and each of the first phase outer winding, the second phase outer winding and the third phase outer winding passes through outer spaces of the corresponding two stator slots; and
a gap is defined between the first phase inner winding and the second phase outer winding and/or between the first phase inner winding and the third phase outer winding along the radial direction of the stator yoke and configured as a heat dissipation channel to form a circumferential heat dissipation channel running through each of the stator slots and occupying a portion of the inner space and the outer space of each slot.