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Title:
COOLING DEVICE, AND ELECTRONIC APPARATUS AND ELECTRIC VEHICLE EQUIPPED WITH THE SAME
Document Type and Number:
Japanese Patent JP2013145069
Kind Code:
A
Abstract:

To provide a cooling device in which a working fluid can be supplied to a heat receiving part and deterioration of cooling capacity is suppressed, even when heat generated in a semiconductor switching element in an inverter circuit of an electronic apparatus and an electric vehicle is increased.

In a cooling device 3 circulating and cooling a working fluid 11 by a phase change of a liquid phase and a gas phase, at least one outlet 15 and a heat dissipating path 6 are provided and a cross-sectional area of the whole heat dissipating path 6 is configured to be larger than a cross-sectional area of a return path 7. Accordingly, it can be suppressed that the downstream pressure of a backflow prevention valve 16 is increased more than the upstream pressure of the backflow prevention valve 16 by decreasing a circulation resistance value of the working fluid 11 in the heat dissipating path 6 and by increasing head pressure of the working fluid 11 in the return path 7. As a result, the working fluid 11 can be supplied to the heat receiving part 4 even when the heat generated in the semiconductor switching element 9 is increased and thereby, the cooling apparatus 3 suppressed in the deterioration of cooling capacity can be obtained.


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Inventors:
MIYAKE SHUNJI
SATO IKU
NOGAMI WAKANA
SUZUKI AYAKA
Application Number:
JP2012005012A
Publication Date:
July 25, 2013
Filing Date:
January 13, 2012
Export Citation:
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Assignee:
PANASONIC CORP
International Classes:
F28D15/06; F28D15/02; H01L23/427
Domestic Patent References:
JP2002168547A2002-06-14
JPS6138396A1986-02-24
JPS62233686A1987-10-14
JP2000065456A2000-03-03
JP2013024478A2013-02-04
JP2013032904A2013-02-14
JP2013120010A2013-06-17
JP2013211506A2013-10-10
JP2009088125A2009-04-23
JP2005019905A2005-01-20
JPH08313178A1996-11-29
JP2008218589A2008-09-18
JP2007531991A2007-11-08
Foreign References:
US20090014155A12009-01-15
WO2012144123A12012-10-26
US4974667A1990-12-04
WO2011122332A12011-10-06
Attorney, Agent or Firm:
Hiroki Naito
Daisuke Nagano
Kentaro Fujii



 
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