COMPRESSOR AND REFRIGERATION AIR CONDITIONING APPARATUS USING SAME

Registre Brevet WIPO
Numéro d'application JP2018037396
Numéro de publication 2020/070879
Statut Délivré - en vigueur
Date de dépôt 2018-10-05
Date de publication 2020-04-09
Propriétaire HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC. (Japon)
Inventeur(s)
  • Notohara Yasuo
  • Hatsuse Wataru
  • Takano Reo
  • Tamura Kenji
  • Tamura Masahiro
  • Tsukii Koji
  • Ueta Kazuhiro

Abrégé

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.

Classes IPC  ?

  • F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
  • F04B 49/02 - Stopping, starting, unloading or idling control
  • F04B 49/06 - Control using electricity
  • H02P 29/00 - Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors