公开(公告)号：US20200236740A1

公开(公告)日：2020-07-23

申请号：US16842207

申请日：2020-04-07

Applicant: DENSO CORPORATION

Inventor： Yusuke TANAKA ,  Kimitake ISHIKAWA ,  Hideki SEKI ,  Hirokazu YAMADAKI ,  Tatsushi DOMON

IPC: H05B1/02

Abstract: A heater device includes a planar heat generating portion configured to generate heat when being energized, a detection circuit having a plurality of planar electrodes disposed on one surface side of the heat generating portion, and a controller configured to control an amount of energization to the heat generating portion based on a detection result of the detection circuit. The heat generating portion and the plurality of electrodes are disposed in parallel with each other. The heater device is configured to have a heat generating region in which the heat generating portion is present and a non-heat generating region in which the heat generating portion is not present when the plurality of electrodes and the heat generating portion are projected in a direction perpendicular to the plurality of electrodes and the heat generating portion. Furthermore, the plurality of electrodes include a heat-diffusion promoting portion provided to be included at least in the non-heat generating region.