US 11,811,271 B2
Compressor
Tomooki Hasegawa, Kanagawa (JP); and Takashi Suzuki, Kanagawa (JP)
Assigned to FUJITSU GENERAL LIMITED, Kanagawa (JP)
Appl. No. 16/979,410
Filed by FUJITSU GENERAL LIMITED, Kanagawa (JP)
PCT Filed Mar. 14, 2019, PCT No. PCT/JP2019/010694
§ 371(c)(1), (2) Date Sep. 9, 2020,
PCT Pub. No. WO2019/177124, PCT Pub. Date Sep. 19, 2019.
Claims priority of application No. 2018-048097 (JP), filed on Mar. 15, 2018.
Prior Publication US 2021/0057949 A1, Feb. 25, 2021
Int. Cl. H02K 1/32 (2006.01); H02K 1/27 (2022.01); H02K 1/30 (2006.01); H02K 7/14 (2006.01); H02K 1/276 (2022.01)
CPC H02K 1/32 (2013.01) [H02K 1/276 (2013.01); H02K 1/30 (2013.01); H02K 7/14 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A compressor comprising:
a rotor;
a stator configured to rotate the rotor;
a compressor unit configured to compress a refrigerant with rotation of the rotor; and
a housing in which an internal space for housing the rotor, the stator, and the compressor unit is formed, wherein
the rotor includes
a rotor core that is formed in a cylindrical shape and has an upper surface and a lower surface;
an upper rotor edge plate that covers the upper surface;
a lower rotor edge plate that covers the lower surface; and
a fixing member that fixes the upper rotor edge plate and the lower rotor edge plate to the rotor core,
a plurality of refrigerant holes through which the refrigerant passes are formed in the rotor core,
an upper opening that allows the plurality of refrigerant holes to communicate with the internal space is formed in the upper rotor edge plate,
a lower opening that allows the plurality of refrigerant holes to communicate with the internal space is formed in the lower rotor edge plate,
an upper fixing member opening through which the fixing member penetrates is formed in the upper rotor edge plate,
a lower fixing member opening through which the fixing member penetrates is formed in the lower rotor edge plate,
an upper separation portion separating the upper opening and the upper fixing member opening is formed in the upper rotor edge plate,
a lower separation portion separating the lower opening and the lower fixing member opening is formed in the lower rotor edge plate,
the upper opening and the lower opening have different shapes,
an area of the upper opening is smaller than an area of the lower opening, and
the lower surface faces the compressor unit.