US 11,674,858 B2
Heat flux sensor and method of manufacturing the same
Toshikazu Harada, Kariya (JP); Atusi Sakaida, Kariya (JP); Toshihisa Taniguchi, Kariya (JP); Tomohiro Imura, Kariya (JP); Hayato Watanabe, Kariya (JP); and Masaya Hirabayashi, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP); and TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Appl. No. 16/317,046
Filed by DENSO CORPORATION, Kariya (JP); and TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
PCT Filed Jul. 7, 2017, PCT No. PCT/JP2017/024985
§ 371(c)(1), (2) Date Jan. 11, 2019,
PCT Pub. No. WO2018/012430, PCT Pub. Date Jan. 18, 2018.
Claims priority of application No. JP2016-137608 (JP), filed on Jul. 12, 2016; and application No. JP2017-101012 (JP), filed on May 22, 2017.
Prior Publication US 2019/0226923 A1, Jul. 25, 2019
Int. Cl. G01K 17/20 (2006.01); B29C 43/18 (2006.01); B29K 101/12 (2006.01); B29L 31/34 (2006.01)
CPC G01K 17/20 (2013.01) [B29C 43/18 (2013.01); B29K 2101/12 (2013.01); B29K 2995/0013 (2013.01); B29L 2031/34 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A heat flux sensor that detects heat flux comprising:
a main body that detects heat flux, having a first surface on a first surface side of the main body and a second surface on an opposite side of the main body from the first surface side, the first surface having an uneven shape with a plurality of concave portions and a plurality of convex portions; and
a flattening member disposed on the first surface side of the main body, made of a material having a higher thermal conductivity than air, for flattening an outer surface of the main body on the first surface side; wherein
the flattening member fills in at least one of the plurality of concave portions;
a surface of the flattening member constitutes at least part of the outer surface; and
a degree of flatness of the outer surface is higher than a degree of flatness of the first surface;
the main body is made at least of a resin;
the flattening member is made of a material having higher thermal conductivity than the resin and has a plate-like member of plate-like form;
the plate-like member has one surface and an other surface on an opposite side of the plate-like member from the one surface, and the one surface is stacked on the first surface side of the main body facing the first surface;
parts of the plate-like member fill in the concave portions; and
the other surface of the plate-like member constitutes the outer surface.