公开(公告)号：US20190285490A1

公开(公告)日：2019-09-19

申请号：US16430479

申请日：2019-06-04

Applicant: DENSO CORPORATION ,  SOKEN, INC.

Inventor： Toshiro SUZUKI ,  Shigetoshi FUKAYA ,  Satoru JINNO ,  Ken TANAKA

IPC: G01L3/10

Abstract: A torque sensor is provided with a torsion bar which converts torque applied between a first shaft and a second shaft into a torsional displacement. A multipole magnet is fixed to one end side of either the first shaft or the torsion bar and in which N poles and S poles are magnetized alternately in a circumferential direction. A plurality of first yokes is provided in the circumferential direction on a radially outer side of the multipole magnet. A plurality of second yokes is provided in the circumferential direction on the radially outer side of the multipole magnet in such a way that each second yoke is sandwiched between two first yokes. A set of magnetic flux collecting members includes a first main body portion and a second main body portion, and forms a magnetic circuit in conjunction with the plurality of first yokes and the plurality of second yokes in a magnetic field generated by the multipole magnet. A magnetic sensor is provided radially outside the first main body portion and the second main body portion to detect a magnetic flux density generated in the magnetic circuit