Flat resolver
AssigneeMinebea Co., Ltd.
InventorTaiichi Miya
Life of this patent
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Abstract
A flat resolver, which has a magnetic path forming a magnetic flux effectively linking to a secondary winding and a detection winding and has a uniform gap between a stator portion and a movable portion so that a resolver signal can be output with high precision, is provided. The flat resolver includes: plate portions of a stator core and a movable core, which are made of a magnetic material and are disposed in parallel with each other; a plurality of magnetic pole portions protruding from opposed surfaces of the plate portions; coil arranged-wiring substrates disposed around each of the magnetic pole portions; transformer winding cores disposed on the plate portions; and transformer winding arranged-wiring substrates disposed on the transformer winding cores.
Claims10
A flat resolver comprising a stator assembly and a movable assembly, each comprising:
- a magnetic material core comprising a plate portion and a plurality of magnetic pole portions, wherein the respective plate portions in the stator and movable assemblies are disposed in parallel with each other, and the plurality of magnetic pole portions protrude from a surface of the plate portion, the surface facing to the other assembly;
- a coil arranged-wiring substrate in which a coil is arranged around each of the magnetic pole portions;
- a transformer winding core disposed on the plate portion;
- and
- a transformer winding arranged-wiring substrate disposed on the transformer winding core.
Dependencies are inferred from the claim text.