| CPC H02K 1/185 (2013.01) [B62D 15/0215 (2013.01); G01L 3/10 (2013.01); H02K 11/24 (2016.01); G01L 3/104 (2013.01)] | 14 Claims |
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1. A sensing device comprising:
a stator including a stator tooth; and
a rotor including a magnet,
wherein the stator tooth includes a first stator tooth and a second stator tooth disposed inside the first stator tooth,
wherein the first stator tooth includes a plurality of first teeth, and
the second stator tooth includes a plurality of second teeth,
wherein the first tooth overlaps the second tooth in a radial direction from a center of the stator, and
the stator includes a stator holder and a stator body which is coupled to the stator holder and on which the first stator tooth and the second stator tooth are disposed,
wherein the stator body includes a protrusion,
wherein the protrusion is in contact with a lower end of the first stator tooth or a lower end of the second stator tooth,
the stator body further includes an inner part, an outer part and a partition plate connecting the inner part and the outer part,
wherein the protrusion includes a first protrusion and a second protrusion,
wherein the first protrusion protrudes from a lower end of the inner part to be in contact with the lower end of the first stator tooth, and
the second protrusion protrudes from a lower end of the outer part to be in contact with the lower end of the second stator tooth.
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