Heating device for vehicle

Patent metadata

Field	Value
Publication number	US-2016200173-A1
Application number	US-201414914924-A
Country	US
Kind code	A1
Filing date	Aug 21, 2014
Priority date	Aug 28, 2013
Publication date	Jul 14, 2016
Grant date	—

Abstract

An electric heater ( 7 ) is individually arranged at a position immediately upstream of a blowing port ( 6 ) that blows an air fed by a blower ( 4 ) into a vehicle room. The electric heater ( 7 ) is formed of a cylindrical case ( 15 ) loaded in the blowing port ( 6 ) and a heat generating sheet ( 16 ) arranged in the case ( 15 ). The heat generating sheet ( 16 ) is formed of a conductive fiber sheet obtained by making a carbon fiber into paper. Furthermore, the heat generating sheet is formed into a continuous strip and radially folded along pins ( 22 ) of the case ( 15 ). The air is heated while flowing along a surface of the heat generating sheet ( 16 ).

First claim

1 . A heating device for vehicle, in which an electric heater is individually arranged at a blowing port from which an air fed by a blower is blown into a vehicle room,
wherein the electric heater has a structure in which a heat generating sheet, which generates heat by supplying electricity thereto and is formed in a strip shape, is received in a case such that the heat generating sheet is folded twice or more and that a surface of the heat generating sheet is made to be along a direction of a flow at the blowing port.

2 . The heating device for vehicle as claimed in claim 1 , wherein the case is equipped with plural pins situated inside folded parts of the heat generating sheet, and the heat generating sheet is folded along the pins.

3 . The heating device for vehicle as claimed in claim 2 , wherein the heat generating sheet is radially folded along the pins arranged at an outer periphery and the pins arranged at an inner periphery of the case.

4 . The heating device for vehicle as claimed in claim 1 , wherein the heat generating sheet is formed of a conductive fiber sheet obtained by making a conductive fiber into paper.

5 . The heating device for vehicle as claimed in claim 1 , wherein the heating device is equipped with a louver at the blowing port, and the electric heater is adjacently arranged in a back of the louver.

6 . The heating device for vehicle as claimed in claim 1 , wherein a heater core is arranged in a downstream side of the blower, and the electric heater is set up in each of the blowing ports to which an airflow passed through the heater core is distributed.

Assignees

• Mahle Filter Systems Jp Corp

Inventors

• Yamashita Takahisa

Classifications

• F24H9/1863

  Arrangement or mounting of electric heating means · CPC title

• H05B3/145

  Carbon only, e.g. carbon black, graphite · CPC title

• H05B3/16

  the conductor being mounted on an insulating base · CPC title

• F24H3/0429

  For vehicles · CPC title

• B60H2001/229

  Integration into an air outlet · CPC title