Title:
COMPRESSOR, AIR CONDITIONER, REFRIGERATOR, AND COMPRESSOR CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2021/171347
Kind Code:
A1
Abstract:
A compressor has a rotating shaft (1), a sliding bearing (2) that supports the rotating shaft (1), an electric motor (3) that causes the rotating shaft (1) to rotate, and an inverter (4) that controls the electric motor (3) The compressor comprises: a sensor (5) that is provided to the sliding bearing (2) or to a rotating shaft portion with which the sliding bearing fits, the sensor (5) outputting a measured measurement value as an output signal; and a signal processing unit (7) that calculates and processes the output signal outputted from the sensor (5), derives a speed at which the electric motor (3) is to rotate, and transmits the derived speed as a control signal to the inverter (4) to control the speed of the electric motor (3).
Inventors:
YAMADA HIROYUKI (JP)
Application Number:
PCT/JP2020/007405
Publication Date:
September 02, 2021
Filing Date:
February 25, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F16C17/24; F04B53/00; F04C29/00; G01M99/00
Domestic Patent References:
| WO2018150706A1 | 2018-08-23 |
Foreign References:
| JPS55118105U | 1980-08-21 | |||
| JP2018004473A | 2018-01-11 |
Attorney, Agent or Firm:
MURAKAMI, Kanako et al. (JP)
Download PDF:
Previous Patent: DISPLAY CONTROL DEVICE, HEAD-UP DISPLAY, AND DISPLAY CONTROL METHOD
Next Patent: AIR CONDITIONING APPARATUS
Next Patent: AIR CONDITIONING APPARATUS