Torque sensor
AssigneeLG Innotek Co., Ltd.
InventorsSu Hyoung Lee, Myung Chul Woo
Life of this patent
Estimating the term…
Abstract
An embodiment can provide a torque sensor comprising: a housing; a rotor that is arranged inside the housing; a stator that is arranged on an outer side of the rotor; a circuit board that is arranged in the housing; a Hall-effect sensor that is arranged on the circuit board; and a collector that is arranged adjacent to the Hall-effect sensor, wherein the collector includes a body portion and an extension portion extending from the body portion, the body portion is arranged to be spaced apart from the housing, and the extension portion is directly in contact with the housing.
Claims19
A torque sensor comprising:
- a housing;
- a rotor disposed inside the housing;
- a stator disposed outside the rotor and inside the housing;
- a circuit board disposed in the housing;
- a Hall sensor disposed on the circuit board;
- and
- a collector disposed adjacent to the Hall sensor,
- wherein the housing includes a support block protruding from a bottom surface of the housing,
- the collector includes a body portion, an extension portion extending from the body portion in a circumferential direction, a through hole formed in the extension portion, and a bent portion facing the Hall sensor,
- the body portion is disposed to be spaced apart from the housing,
- the extension portion is in direct contact with the housing,
- the housing includes a fixing portion configured to fix the extension portion of the collector,
- the fixing portion is disposed within the through hole in the extension portion,
- the support block overlaps the bent portion in an axial direction, and
- an end surface of the support block is disposed in close proximity to the bent portion.
A torque sensor comprising:
- a rotor including a magnet;
- and
- a stator disposed outside the rotor,
- wherein the stator includes a base having a cylindrical shape, a holder coupled to an outer side of an end of the base, and a first stator ring and a second stator ring that are coupled to the holder,
- the holder includes a main body and a flange portion protruding from the main body in a circumferential direction,
- gear teeth are formed on an outer circumferential surface of the flange portion,
- the first stator ring includes a first body having a ring shape, a first tooth extending from an inner circumferential surface of the first body in an axial direction, and a first protrusion portion extending from an outer circumferential surface of the first body in the axial direction and spaced from the first tooth in a radial direction, and
- the first protrusion portion passes through a first hole of the flange portion in the axial direction.
A torque sensor comprising:
- a rotor including a magnet;
- and
- a stator disposed outside the rotor,
- wherein the stator includes a base having a cylindrical shape, a holder coupled to an outer side of an end of the base, and a first stator ring and a second stator ring that are coupled to the holder,
- the holder includes a main body and a flange portion protruding from the main body in a circumferential direction,
- gear teeth are formed on an outer circumferential surface of the flange portion,
- the first stator ring includes a first body having a ring shape, a first tooth extending from an inner circumferential surface of the first body in an axial direction, and a first protrusion portion extending from an outer circumferential surface of the first body in the axial direction and spaced from the first tooth in a radial direction,
- the first protrusion portion passes through a first hole of the flange portion in the axial direction, and
- the flange portion is disposed to be spaced apart from each of an upper portion edge and a lower portion edge of the main body by a predetermined distance.
Dependencies are inferred from the claim text.