US 12,278,532 B2
Motor, compressor and refrigeration device
Dongliang Zhao, Anhui (CN); Zhengjun Sun, Anhui (CN); and Xiaohua Qiu, Anhui (CN)
Assigned to ANHUI MEIZHI PRECISION MANUFACTURING CO., LTD., Anhui (CN)
Filed by ANHUI MEIZHI PRECISION MANUFACTURING CO., LTD., Anhui (CN)
Filed on Jun. 8, 2022, as Appl. No. 17/835,380.
Application 17/835,380 is a continuation of application No. PCT/CN2021/120600, filed on Sep. 26, 2021.
Claims priority of application No. 202120538606.6 (CN), filed on Mar. 15, 2021.
Prior Publication US 2022/0302810 A1, Sep. 22, 2022
Int. Cl. H02K 19/10 (2006.01); F25B 31/00 (2006.01); F25B 31/02 (2006.01); H02K 1/16 (2006.01)
CPC H02K 19/103 (2013.01) [F25B 31/002 (2013.01); F25B 31/026 (2013.01); H02K 1/16 (2013.01); H02K 2213/03 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A motor comprising:
a stator comprising an annular stator yoke and a plurality of stator teeth located on an inner side of the stator yoke, the plurality of stator teeth being provided at intervals along a periphery of the stator yoke; and
a rotor provided in the stator and comprising an annular rotor yoke and a plurality of rotor teeth located on an exterior of the rotor yoke, the plurality of rotor teeth being provided at intervals along a periphery of the rotor yoke,
wherein a tooth width of the stator teeth is T1 and a width of the stator yoke is T2, and wherein 4.8≤T2/T1≤5.1; and
wherein a tooth width of the rotor teeth is L1 and a width of the rotor yoke is L2, and wherein 6.1≤L2/L1≤6.3;
wherein rotor grooves are formed between adjacent rotor teeth and a number of the rotor grooves is L3;
wherein stator grooves are formed between adjacent stator teeth and a number of the stator grooves is T3;
wherein L3 is greater than T3; and
wherein 0.93≤(L3λL1)/(T3×T1)≤0.99.