Title:
COMPRESSOR DRIVING UNIT AND REFRIGERATOR USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2005/029692
Kind Code:
A1
Abstract:
A reciprocation type compressor driving unit free from start failure. A position established by moving (Ѳ init) about 45º in a direction of rotation is the best start initial position with a line connecting a piston (107)-compression upper dead point-lower dead point in a reciprocation type compressor (15) taken as a reference; therefore, as start motor constants for moving a rotor (117) to this start initial position, a rotation initial position (Ѳ init), a start acceleration speed (&ohgr init), a start d-axis current (I dinit), and a start q-axis current (I qinit) are set. Before starting, a drive current is passed through one phase of a compressor motor (28) on the basis of the start motor constants, with the position of the rotor (117) being caused to stand by at the start initial position. Thereafter, starting is initiated from this start initial position, whereby normal starting can be effected with the rotor (117) being in either start position.
Inventors:
MARUTANI YUUKI (JP)
ADACHI KOSAKU (JP)
ADACHI KOSAKU (JP)
Application Number:
PCT/JP2004/003383
Publication Date:
March 31, 2005
Filing Date:
March 12, 2004
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA CONSUMER MARKETING (JP)
TOSHIBA HA PRODUCTS CO LTD (JP)
MARUTANI YUUKI (JP)
ADACHI KOSAKU (JP)
TOSHIBA CONSUMER MARKETING (JP)
TOSHIBA HA PRODUCTS CO LTD (JP)
MARUTANI YUUKI (JP)
ADACHI KOSAKU (JP)
International Classes:
F04B49/06; F04B27/02; F04B35/04; F04B49/02; F25B1/00; F25B49/02; F25D11/00; F25D11/02; H02K1/27; H02P6/28; (IPC1-7): H02P21/00
Domestic Patent References:
| WO1996028700A1 | 1996-09-19 |
Foreign References:
| JP2003259680A | 2003-09-12 | |||
| US20020117989A1 | 2002-08-29 |
Attorney, Agent or Firm:
Tsutada, Akiko (Nissei Bingomachi Bldg. 7-10, Bingomachi
1-chome, Chuo-k, Osaka-shi Osaka, JP)
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