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Title:
HEAT MEDIUM HEATING DEVICE AND VEHICLE AIR CONDITIONER USING THE SAME
Document Type and Number:
Japanese Patent JP2014129090
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To enhance reliability while reducing the manufacturing cost of a heat medium circulation box accommodating a PTC heater and circulating a heat medium.SOLUTION: In a heat medium heating device including a first heat medium circulation box and a second heat medium circulation box closely attached to both surfaces of a PTC heater 40, respectively, having a heat medium circulation passage formed inside, the first and second heat medium circulation boxes being fluid-tightly bonded to each other, a plurality of PTC elements 41a, 41b, and 41c constituting the PTC heater 40 are arranged along a channel direction of the heat medium circulation passage, these PTC elements 41a, 41b, and 41c have different widths from one another, and the PTC elements 41a, 41b, and 41c can be independently controlled to be turned on or off.

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Inventors:
ADACHI TOMOYASU
NAKAGAWA SHINYA
MATSUBARA SHIRO
KUNIEDA NAOTO
Application Number:
JP2014023661A
Publication Date:
July 10, 2014
Filing Date:
February 10, 2014
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
B60H1/03; B60H1/08; B60H1/22
Domestic Patent References:
JP2008056044A2008-03-13
JP2002050455A2002-02-15
JPH0465089A1992-03-02
Foreign References:
WO2007108066A12007-09-27
Attorney, Agent or Firm:
Noriharu Fujita
Kunio Ueda