Sensing device
AssigneeLG Innotek Co., Ltd.
InventorSung Wook Byun
Life of this patent
Estimating the term…
Abstract
Disclosed is a sensing device comprising: a stator connected to a first shaft; a first gear rotating in engagement with the stator; a second gear rotating in engagement with the first gear; a magnet coupled to the second gear; and a magnetic element disposed corresponding to the magnet, wherein one surface of the magnet disposed facing the magnetic element has an elliptical shape. Accordingly, even when the center of the magnet disposed in the second gear and the center of the magnetic element are not aligned in the axial direction and thus arranged offset, the sensing device can enhance the precision of a steering angle measurement due to the shape of the magnet.
Claims14
A sensing device comprising:
- a stator connected to a first shaft;
- a first gear which rotates in conjunction with the stator;
- a second gear which rotates in conjunction with the first gear;
- a magnet coupled to the second gear;
- and
- a magnetic element disposed to correspond to the magnet,
- wherein one surface of the magnet has an elliptical shape,
- wherein the magnet has a peripheral region of which a thickness is greater than a thickness of a central region of the magnet in an axial direction,
- wherein one surface of the central region includes a flat surface, and
- wherein one surface of the peripheral region includes an inclined surface.
A sensing device comprising:
- a stator connected to a first shaft;
- a first gear which rotates in conjunction with the stator;
- a second gear which rotates in conjunction with the first gear;
- a magnet coupled to the second gear;
- and
- a magnetic element disposed to correspond to the magnet,
- wherein one surface of the magnet includes a flat surface and an inclined surface inclined with respect to the flat surface,
- wherein the magnet includes a body portion having the flat surface and a protrusion including the inclined surface,
- wherein the flat surface is disposed between two inclined surfaces, and
- wherein the magnetic element is disposed to overlap with an end portion of the protrusion in a radial direction of the second gear.
A sensing device comprising:
- a stator connected to a first shaft;
- a first gear which rotates in conjunction with the stator;
- a second gear which rotates in conjunction with the first gear;
- a magnet coupled to the second gear;
- and
- a magnetic element disposed to correspond to the magnet,
- wherein the magnet has a shape in which a ratio for a difference between a maximum value of an X flux and a maximum value of a Y flux has a value within 15% based on an offset of 1 mm,
- wherein the magnet has a peripheral region of which a thickness is greater than a thickness of a central region of the magnet in an axial direction,
- wherein one surface of the central region includes a flat surface, and
- wherein one surface of the peripheral region includes an inclined surface.
Dependencies are inferred from the claim text.