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Patent Searching and Data


Title:
COOLING DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/093991
Kind Code:
A1
Abstract:
Provided is a cooling device in which it is possible to improve constancy in the performance of cooling heat-generating sources with a refrigerant. This cooling device (1) for cooling an HV instrument (31, 33) comprises: a compressor (12) that compresses a refrigerant; a heat exchanger (14) that exchanges heat between the refrigerant and outside air; an expansion valve (16) that decompresses the refrigerant; a heat exchanger (18) that exchanges heat between the refrigerant and air-conditioning air; a cooling part (30) that is connected in parallel to the heat exchanger (18) and that cools the HV instrument (31, 33) with the refrigerant; an expansion valve (19) that is provided on the downstream side of the heat exchanger (18) and that adjusts the pressure of the refrigerant flowing through the heat exchanger (18); and an expansion valve (39) that is provided on the downstream side of the cooling part (30) and that adjusts the pressure of the refrigerant flowing through the cooling part (30). The degree of opening of the expansion valve (19) is adjusted according to the temperature of the refrigerant between the expansion valve (16) and the expansion valve (19). The degree of opening of the expansion valve (39) is adjusted according to the temperature of the refrigerant between the expansion valve (16) and the expansion valve (39).

Inventors:
KAWAKAMI YOSHIAKI (JP)
ARAI KUNIHIKO (JP)
Application Number:
PCT/JP2011/079351
Publication Date:
June 27, 2013
Filing Date:
December 19, 2011
Export Citation:
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Assignee:
TOYOTA MOTOR CO LTD (JP)
KAWAKAMI YOSHIAKI (JP)
ARAI KUNIHIKO (JP)
International Classes:
F25B5/02; B60H1/32
Foreign References:
JPS62253511A1987-11-05
JPH04251164A1992-09-07
JPH03113247A1991-05-14
JP2009236330A2009-10-15
JP2003222420A2003-08-08
JP2007069733A2007-03-22
JPH09290622A1997-11-11
JPH1123081A1999-01-26
JP2001309506A2001-11-02
JP2005082066A2005-03-31
Other References:
See also references of EP 2796810A4
Attorney, Agent or Firm:
Fukami Patent Office, p. c. (JP)
Patent business corporation Fukami patent firm (JP)
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Claims: