US 12,392,344 B2
Electric compressor
Eun Gi Son, Daejeon (KR); Seung Kyu Na, Daejeon (KR); Bok Ki Park, Daejeon (KR); and You Cheol Jeong, Daejeon (KR)
Assigned to HANON SYSTEMS, Daejeon (KR)
Appl. No. 18/723,666
Filed by Hanon Systems, Daejeon (KR)
PCT Filed Dec. 16, 2022, PCT No. PCT/KR2022/020633
§ 371(c)(1), (2) Date Jun. 24, 2024,
PCT Pub. No. WO2023/121160, PCT Pub. Date Jun. 29, 2023.
Claims priority of application No. 10-2021-0187551 (KR), filed on Dec. 24, 2021; and application No. 10-2022-0175100 (KR), filed on Dec. 14, 2022.
Prior Publication US 2025/0043786 A1, Feb. 6, 2025
Int. Cl. F04C 18/02 (2006.01); F04C 23/00 (2006.01); F04C 23/02 (2006.01); F04C 27/00 (2006.01); F04C 29/00 (2006.01); F04C 29/06 (2006.01)
CPC F04C 29/06 (2013.01) [F04C 18/0215 (2013.01); F04C 23/008 (2013.01); F04C 23/02 (2013.01); F04C 27/005 (2013.01); F04C 29/0021 (2013.01); F04C 2240/50 (2013.01); F04C 2240/60 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An electric compressor comprising:
a housing;
a compression mechanism disposed in the housing and configured to compress a refrigerant;
a motor configured to generate power required for the compression mechanism;
a rotary shaft configured to transmit power from the motor to the compression mechanism;
a bearing configured to support the rotary shaft; and
an elastic member configured to press the rotary shaft toward the compression mechanism, wherein the bearing further comprises a thrust bearing disposed between the elastic member and the rotary shaft, the rotary shaft further comprises a first end extending while penetrating the motor, and a second end extending toward a side opposite to the first end and connected to the compression mechanism, the housing further comprises a shaft receiving groove into which the first end of the rotary shaft, the elastic member, and the thrust bearing are inserted, the elastic member is supported on a base surface of the shaft receiving groove, the thrust bearing is tightly attached to a tip surface of the first end of the rotary shaft by the elastic member, the bearing further comprises a first radial bearing disposed in the shaft receiving groove and is configured to support an outer peripheral surface of the first end of the rotary shaft, the first radial bearing is configured as a bushing type sliding bearing, and an inner diameter of the shaft receiving groove is larger than an outer diameter of the sliding bearing, and an adapter is disposed between an inner peripheral surface of the shaft receiving groove and an outer peripheral surface of the sliding bearing.