公开(公告)号：US20160190899A1

公开(公告)日：2016-06-30

申请号：US14648986

申请日：2013-10-15

Applicant: Calsonic Kansei Corporation

Inventor： Junichirou TERAZAWA ,  Toshiharu WATANABE ,  Katsuyoshi KAWACHI ,  Mitsuji YAMAMOTO

IPC: H02K11/00 ,  F04C29/00 ,  F04C18/344

CPC classification number: H02K11/0094 ,  F04B35/04 ,  F04B39/121 ,  F04C18/344 ,  F04C23/008 ,  F04C29/0085 ,  F04C29/047 ,  F04C2240/30 ,  F04C2240/809 ,  H02K3/50 ,  H02K5/225 ,  H02K7/14 ,  H02K9/193 ,  H02K11/33

Abstract: An electric compressor includes a hollow cylindrical housing, a compression unit that compresses refrigerant, a motor that functions as a drive source of the compression unit, an inverter that controls the motor, and a refrigerant liquid accumulation unit that accumulates refrigerant liquid in the housing. The refrigerant liquid accumulation unit is disposed at a lower portion in the housing when the electric compressor is installed on the vehicle. According to the electric compressor, the refrigerant liquid is accumulated in the refrigerant liquid accumulation portion at a long-time stop, so that degradation of insulation property in the electric compressor (especially, of the motor and the inverter) can be prevented.

Abstract translation: 电动压缩机包括中空圆柱形壳体，压缩制冷剂的压缩单元，用作压缩单元的驱动源的电动机，控制电动机的逆变器以及将制冷剂液体积聚在壳体中的制冷剂液体积聚单元。 当电动压缩机安装在车辆上时，制冷剂液体积聚单元设置在壳体的下部。 根据电动压缩机，制冷剂液体在长时间停止时积存在制冷剂液体积存部分中，从而可以防止电动压缩机（特别是电动机和逆变器）的绝缘性能的劣化。

公开(公告)号：US20180030972A1

公开(公告)日：2018-02-01

申请号：US15550425

申请日：2016-01-05

Applicant: CALSONIC KANSEI CORPORATION

Inventor： Junichirou TERAZAWA

IPC: F04B39/10 ,  F25B31/00 ,  F04C29/04 ,  F16K15/02 ,  F04B39/06

CPC classification number: F04B39/10 ,  F04B39/06 ,  F04C29/04 ,  F04C29/045 ,  F04C29/047 ,  F04C2240/403 ,  F16K15/021 ,  F25B31/006

Abstract: When a power switching element brought into contact with a contact part formed at a back side of a suction refrigerant passage is cooled by refrigerant that has been sucked in through a suction port and that is passing through the suction refrigerant passage, high-temperature, high-pressure refrigerant flowing in from a compression chamber to a suction chamber is prevented from flowing back by a check valve. Therefore, there is always low-temperature, low-pressure refrigerant in the suction refrigerant passage, and the power switching element can be efficiently cooled by the refrigerant in the suction refrigerant passage.