Stator of planar type motor, and planar type motor using same
AssigneeKorea Electronics Technology Institute
InventorsSehyun Rhyu, Youngkyoun Kim, Jungmoo Seo, Jeongjong Lee, Insoung Jung
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Abstract
The described technology relates to a stator of a planar type motor and a planar type motor using the same, which are easy to manufacture and are capable of reducing core losses, thereby maximizing motor performance. First cores that are difficult to form by stacking electrical steel plates are formed of soft magnetic powders, and second cores that are formed by stacking electrical steel plates having the same size are arranged in a region where a vortex is concentrated, thereby allowing easy manufacture and being capable of maximizing the performance of the planar type motor.
Claims7
A stator for a planar type motor comprising:
- a support plate in which a plurality of first receiving grooves are formed in a circumferential surface thereof with a predetermined distance therebetween;
- a plurality of first cores inserted into the first receiving grooves, fixed to the support plate, and formed of a soft magnetic powder;
- a plurality of second cores each coupled to a corresponding one of the plurality of the first cores, each of the plurality of second cores comprises a plurality of electric steel plates stacked onto each other, the plurality of electric steel plates having the same size and extending along a direction perpendicular to the support plate and fixed to the first cores;
- and
- coils which are wound around and cover the first cores and the second cores,
- wherein each of the plurality of first cores includes:
- a fixing portion formed perpendicularly to the support plate;
- a first coupling portion formed on an upper surface of the fixing portion to be perpendicular to the fixing portion, the first coupling portion having a second receiving groove formed therein and configured to accommodate a corresponding one of the plurality of second cores, and the first coupling portion having an area which is greater than that of an upper surface of the corresponding second core to form a space between the first coupling portion and the support plate;
- and
- a second coupling portion configured to support the second core and positioned at an open portion of the second receiving groove into which the second core is inserted.
Dependencies are inferred from the claim text.