Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/207661
Kind Code:
A1
Abstract:
The present invention comprises: a compressor (111) that compresses a refrigerant; a motor that is disposed in the compressor (111) and that generates a force for compressing the refrigerant, the force being generated by the rotation of a rotor due to a plurality of windings receiving voltage; and a winding switching unit (116) that carries out switching with respect to a plurality of winding states, by changing the connections of a plurality of windings. If the rotation speed of the rotor becomes higher than a predetermined value, the winding switching unit (116) switches to, from among the plurality of winding states, a first winding state that is different from a second winding state which has the highest efficiency with respect to the rotation speed of the rotor.
Inventors:
NISHIYAMA TAKUMI (JP)
ARISAWA KOICHI (JP)
NIGO MASAHIRO (JP)
HATAKEYAMA KAZUNORI (JP)
ARISAWA KOICHI (JP)
NIGO MASAHIRO (JP)
HATAKEYAMA KAZUNORI (JP)
Application Number:
PCT/JP2018/016702
Publication Date:
October 31, 2019
Filing Date:
April 25, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00
Domestic Patent References:
| WO2014002251A1 | 2014-01-03 |
Foreign References:
| JPS6012533B2 | 1985-04-02 | |||
| JP2016085005A | 2016-05-19 | |||
| JPH05272823A | 1993-10-22 | |||
| JPS5857669U | 1983-04-19 | |||
| JPS5857669U | 1983-04-19 |
Other References:
See also references of EP 3786544A4
Attorney, Agent or Firm:
MAEDA Minoru et al. (JP)
Download PDF: