公开(公告)号：US20220146346A1

公开(公告)日：2022-05-12

申请号：US17433745

申请日：2020-02-25

Applicant: Moving Magnet Technologies

Inventor： Didier Frachon

IPC: G01L3/10 ,  H02K1/27 ,  H02K1/16

Abstract: A position sensor, in particular, intended for detecting the torsion of a steering column, includes a first magnetized rotor structure comprising magnets, a second stator structure comprising two rings extended by teeth that are axially oriented and interlocked, and a third stationary collector structure including two flux collection parts that define at least one air gap in which at least one magnet-sensitive element is placed. The flux collection parts and the ring gears define a magnetic permeance independent of the relative radial and angular position of the second stator structure with respect to the third collector structure. The collection parts comprise an angular collection sector and a primary collection zone continued by a prolongation having a secondary collection zone. The secondary collection zones end in flat extensions forming two poles of the air gap. The transverse median plane of the air gap intersects at least one of the prolongations.

公开(公告)号：US12228468B2

公开(公告)日：2025-02-18

申请号：US17433188

申请日：2020-02-25

Applicant: Moving Magnet Technologies

Inventor： Didier Frachon

IPC: G01L5/22 ,  B62D15/02 ,  G01B7/30 ,  G01D5/14 ,  G01L3/10 ,  G01R33/06

Abstract: A position sensor, designed, in particular, for detecting torsion in a steering column, includes a first magnetized magnetic rotor structure comprising a plurality of magnets, two flux-collecting components, which define at least one air gap in which at least one magnetically sensitive element is positioned. Each collecting component has at least one primary collecting zone extended by at least one extension having at least one secondary collecting zone. The secondary collecting zones end in flattened shoes that form the two poles of the air gap. The transverse mid-plane of the air gap intersects at least one of the extensions.

公开(公告)号：US20240159570A1

公开(公告)日：2024-05-16

申请号：US18549680

申请日：2022-03-08

Applicant: Moving Magnet Technologies

Inventor： Didier Frachon

IPC: G01D5/14 ,  G01B7/00

CPC classification number: G01D5/145 ,  G01B7/003

Abstract: A magnetic position sensor comprises at least one magnetically sensitive element capable of moving relative to a permanent magnet producing a magnetic field, the magnet of which is embedded in a support made of soft ferromagnetic material having two pole shoes located on either side of the magnet.

公开(公告)号：US12044588B2

公开(公告)日：2024-07-23

申请号：US17433745

申请日：2020-02-25

Applicant: Moving Magnet Technologies

Inventor： Didier Frachon

IPC: G01L3/10 ,  G01L5/22 ,  H02K1/16 ,  H02K1/27

CPC classification number: G01L3/104 ,  G01L5/221 ,  H02K1/16 ,  H02K1/27

Abstract: A position sensor, in particular, intended for detecting the torsion of a steering column, includes a first magnetized rotor structure comprising magnets, a second stator structure comprising two rings extended by teeth that are axially oriented and interlocked, and a third stationary collector structure including two flux collection parts that define at least one air gap in which at least one magnet-sensitive element is placed. The flux collection parts and the ring gears define a magnetic permeance independent of the relative radial and angular position of the second stator structure with respect to the third collector structure. The collection parts comprise an angular collection sector and a primary collection zone continued by a prolongation having a secondary collection zone. The secondary collection zones end in flat extensions forming two poles of the air gap. The transverse median plane of the air gap intersects at least one of the prolongations.

公开(公告)号：US20220136918A1

公开(公告)日：2022-05-05

申请号：US17433188

申请日：2020-02-25

Applicant: Moving Magnet Technologies

Inventor： Didier Frachon

IPC: G01L5/22 ,  G01L3/10 ,  G01D5/14 ,  G01B7/30 ,  B62D15/02

Abstract: A position sensor, designed, in particular, for detecting torsion in a steering column, includes a first magnetized magnetic rotor structure comprising a plurality of magnets, two flux-collecting components, which define at least one air gap in which at least one magnetically sensitive element is positioned. Each collecting component has at least one primary collecting zone extended by at least one extension having at least one secondary collecting zone. The secondary collecting zones end in flattened shoes that form the two poles of the air gap. The transverse mid-plane of the air gap intersects at least one of the extensions.