To weaken a magnetic field formed on a surface different from the counterface surface of a sensor.SOLUTION: A magnet structure 30 for magnetoresistance effect elements comprises: a magnet molding 32 including an end surface 32a as a first principal surface that faces a magnetoresistance effect element among a pair of principal surfaces and an end surface 32b as a second principal surface different from the first principal surface, with N and S poles appearing on the first principal surface, and composed of an isotropic magnet; and a shaft 36 as a support for supporting the magnet molding 32. The strength of a magnetic field on the end surface 32a side of the magnet molding 32 is larger than the strength of a magnetic field on the end surface 32b side.SELECTED DRAWING: Figure 4
【課題】センサの対向面とは異なる面で形成される磁界を弱くする。【解決手段】磁気抵抗効果素子用の磁石構造体30は、一対の主面のうち、磁気抵抗効果素子に対向する第1の主面としての端面32aと、第1の主面とは異なる第2の主面としての端面32bと、を有し、第1の主面にN極およびS極が現れている、等方性磁石からなる磁石成型体32と、磁石成型体32を支持する支持部としてのシャフト36と、を備え、磁石成型体32は、端面32a側の磁界の強さが、端面32b側の磁界の強さよりも大きい。【選択図】図4
MAGNET STRUCTURE, ROTATION ANGLE DETECTOR, ELECTRIC POWER STEERING DEVICE, AND MANUFACTURING METHOD FOR MAGNET STRUCTURE
磁石構造体、回転角度検出器、電動パワーステアリング装置、および磁石構造体の製造方法
19.09.2019
Patent
Elektronische Ressource
Japanisch
MAGNET STRUCTURE, ROTATION ANGLE DETECTOR, AND ELECTRIC POWER STEERING DEVICE
Europäisches Patentamt | 2019
|Magnet structure, rotation angle detector, and electric power steering device
Europäisches Patentamt | 2022
|MAGNET STRUCTURE, ROTATION ANGLE DETECTOR, AND ELECTRICAL POWER-STEERING DEVICE
Europäisches Patentamt | 2021
|MAGNET STRUCTURE, ROTATIONAL ANGLE DETECTOR, AND ELECTRIC POWER STEERING DEVICE
Europäisches Patentamt | 2021
|MAGNET STRUCTURE, ROTATIONAL ANGLE DETECTOR, AND ELECTRIC POWER STEERING DEVICE
Europäisches Patentamt | 2019
|