Motor unit and grill shutter driving device including the same

摘要

A motor unit and a grill shutter driving device are disclosed. The grill shutter driving device according to an exemplary embodiment of the present inventive concept includes a body unit interposed between a plurality of grill shutters, a motor unit installed inside the body unit for generating driving power to drive the grill shutter, a control unit for controlling generation of driving power of the motor unit, and a connection unit for providing driving power of the motor unit to the grill shutter. The motor unit includes a plurality of coil units in which electric coil is rolled, a stator to be magnetized, a rotator having magnetism with a permanent magnet and rotating due to interference of the magnetization of the stator, wherein the plurality of coil units are separated with each other in a radial form with even number, and any one side of the mutually facing coil units includes electric coil rolled in, thereby forming an asymmetry coil structure.

主权项

1. A motor unit comprising:
a stator including a plurality of coil units in which electric coil is rolled and magnetized; and a rotator having magnetism with a permanent magnet, that rotates due to magnetization of the stator, wherein the plurality of coil units separated radially in an even number includes a plurality of first coil units separated from each other and a plurality of second coil units disposed between the plurality of first coil units, having a length longer than the plurality of first coil units, and having electric coil rolled therein, wherein the stator has a form of a first wiring unit and the plurality of second coil units projected from a boundary unit which is circular at an outermost circumference and having a middle hole which is empty in the middle in a radial form, and wherein the width of the boundary unit from which the plurality of first coil units is projected is wider than the width of the boundary unit from which the plurality of second coil units is projected.