Title:
COMPRESSOR AND REFRIGERATION AIR CONDITIONING APPARATUS USING SAME
Document Type and Number:
WIPO Patent Application WO/2020/070879
Kind Code:
A1
Abstract:
The present invention improves an effect of suppressing vibration of a pipe connected to a compressor. The compressor is provided with a compression mechanism unit, a motor that drives the compression mechanism unit, and a motor control device that controls the rotational speed of the motor. A refrigerant pipe is connected to the compressor. The motor control device performs, before stopping current flow to the compressor, pre-vibration generation control to generate pre-vibration for canceling vibration to be generated by stopping of current flow to the compressor, and causes the pre-vibration to interfere with vibration generated at the time of stopping of the current flow to the compressor. Thus, vibration of the pipe is suppressed.
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Inventors:
NOTOHARA YASUO (JP)
HATSUSE WATARU (JP)
TAKANO REO (JP)
TAMURA KENJI (JP)
TAMURA MASAHIRO (JP)
TSUKII KOJI (JP)
UETA KAZUHIRO (JP)
HATSUSE WATARU (JP)
TAKANO REO (JP)
TAMURA KENJI (JP)
TAMURA MASAHIRO (JP)
TSUKII KOJI (JP)
UETA KAZUHIRO (JP)
Application Number:
PCT/JP2018/037396
Publication Date:
April 09, 2020
Filing Date:
October 05, 2018
Export Citation:
Assignee:
HITACHI JOHNSON CONTROLS AIR CONDITIONING INC (JP)
International Classes:
F25B1/00; F04B49/02; F04B49/06; H02P29/00
Domestic Patent References:
| WO2004083744A1 | 2004-09-30 |
Foreign References:
| JP2009024929A | 2009-02-05 | |||
| JP2001037281A | 2001-02-09 | |||
| JPS53119403A | 1978-10-18 | |||
| JPS48708U | 1973-01-08 | |||
| JPH0580776A | 1993-04-02 | |||
| JPH04288460A | 1992-10-13 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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