公开(公告)号：US20200056816A1

公开(公告)日：2020-02-20

申请号：US16347149

申请日：2017-11-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshinori ISHIDA ,  Noboru IIDA ,  Ko INAGAKI ,  Hiroyuki KAWANO

IPC: F25B31/02

Abstract: The present invention includes: an electric component; a compression component driven by the electric component to compress a refrigerant; and a sealed container accommodating the electric component and the compression component. The compression component includes: a shaft part rotated by the electric component; and a bearing part slidingly contacting the shaft part such that the shaft part is rotatable. A film having hardness equal to or more than hardness of a sliding surface of the bearing part is provided on a sliding surface of the shaft part. The sliding surface of the bearing part includes a curved-surface portion having an inner diameter that continuously increases in a curved shape toward an end of the bearing part in a center axis direction of the bearing part, or the sliding surface of the shaft part includes a curved-surface portion having an outer diameter that continuously decreases in a curved shape toward an end of the shaft part in a center axis direction of the shaft part.

公开(公告)号：US20210389030A1

公开(公告)日：2021-12-16

申请号：US17459151

申请日：2021-08-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshinori ISHIDA ,  Noboru IIDA ,  Ko INAGAKI ,  Hiroyuki KAWANO

IPC: F25B31/02

Abstract: The present invention includes: an electric component; a compression component driven by the electric component; and a sealed container accommodating the electric component and the compression component. The compression component includes: a shaft part rotated by the electric component; and a bearing part slidingly contacting the shaft part. A film having hardness equal to or more than hardness of a sliding surface of the bearing part is provided on a sliding surface of the shaft part. The sliding surface of the bearing part includes a curved-surface portion having an inner diameter that continuously increases, or the sliding surface of the shaft part includes a curved-surface portion having an outer diameter that continuously decreases.

公开(公告)号：US20200056604A1

公开(公告)日：2020-02-20

申请号：US16346755

申请日：2017-11-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Noboru IIDA ,  Yoshinori ISHIDA ,  Ko INAGAKI

IPC: F04B39/00 ,  F04B39/02

Abstract: A refrigerant compressor includes: an electric component (106); a compression component (107) driven by the electric component to compress a refrigerant; and a sealed container (101) accommodating the electric component and the compression component. The compression component includes: a shaft part (109, 110) rotated by the electric component; and a bearing part (114, 119) slidingly contacting the shaft part such that the shaft part is rotatable. A film (160) having hardness equal to or more than hardness of a sliding surface of the bearing part is provided on a sliding surface of the shaft part. Surface roughness of the sliding surface of the bearing part is smaller than surface roughness of the sliding surface of the shaft part.