US 11,680,861 B2
Tire information acquisition device having a heat-insulating material
Daisuke Kanenari, Hiratsuka (JP)
Assigned to The Yokohama Rubber Co., Ltd., Tokyo (JP)
Appl. No. 17/251,162
Filed by The Yokohama Rubber Co., LTD., Tokyo (JP)
PCT Filed May 9, 2019, PCT No. PCT/JP2019/018546
§ 371(c)(1), (2) Date Dec. 10, 2020,
PCT Pub. No. WO2020/012772, PCT Pub. Date Jan. 16, 2020.
Claims priority of application No. 2018-130068 (JP), filed on Jul. 9, 2018.
Prior Publication US 2021/0255050 A1, Aug. 19, 2021
Int. Cl. G01L 17/00 (2006.01); B60C 19/00 (2006.01); B60C 23/04 (2006.01); G01L 19/00 (2006.01)
CPC G01L 17/00 (2013.01) [B60C 19/00 (2013.01); B60C 23/04 (2013.01); G01L 19/0092 (2013.01); B60C 2019/004 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A tire information acquisition device, comprising
a sensor unit substrate on a same plane of which a sensor for acquiring tire information and a power supply unit for supplying electric power to the sensor are disposed;
a heat-insulating material being disposed at at least a periphery of the power supply unit; wherein
the power supply unit comprises an electret that generates electric power by changing a position of an electrode due to a rotational movement or a reciprocating movement.