Title:
COMPRESSOR AND REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/152858
Kind Code:
A1
Abstract:
A compressor (100) is provided with: a closed container (1) having an oil reservoir space at the bottom thereof; a compression mechanism unit (2) that is disposed inside the closed container and compresses a refrigerant; an electric motor (16) that is disposed below the compression mechanism unit; a drive shaft (19) that transmits a rotating force of the electric motor to the compression mechanism unit; and a frame (37) that is disposed below the electric motor and supports the drive shaft. The compressor is provided with a plate-shaped annular member (50) that has a through-hole through which the drive shaft is passed, the plate-shaped annular member (50) being attached to a lower part of the frame with the drive shaft passing through the through-hole. The frame has a plurality of fixed leg parts (37b) that extend axially and radially of the drive shaft and are fixed to the closed container. The annular member has the same number of passage holes (52) as the plurality of fixed leg parts to allow the refrigerant over the annular member to be passed toward the underside of the annular member. The plurality of passage holes are formed adjacent to wall surfaces of the plurality of fixed leg parts on the side opposite to a rotating direction of the electric motor. In each of the plurality of fixed leg parts, the wall surface (37c1) on the side opposite to the rotating direction serves as a wind guiding wall that guides the refrigerant over the annular member to each of the plurality of passage holes.
Inventors:
KITAGAWA HIDEAKI (JP)
Application Number:
PCT/JP2022/005287
Publication Date:
August 17, 2023
Filing Date:
February 10, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04B39/04
Foreign References:
| JP2015105637A | 2015-06-08 | |||
| JP2015105638A | 2015-06-08 | |||
| JP2012202253A | 2012-10-22 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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