Pole plate assembly for a stator of a motor
AssigneeSunonwealth Electric Machine Industry Co., Ltd.
InventorsAlex Horng, Ching-Shen Hong
Life of this patent
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Abstract
A stator comprises a bobbin, plural pole plates, and an axle tube. A half of the plural pole plates is mounted on top of the bobbin and the other half of the plural pole plates is mounted to a bottom of the bobbin. The axle tube is extended through the pole plates and the bobbin to form a stator having four or eight poles. The magnetization is increased and the magnetic flux leakage is reduced by means of the increased overall thickness of the pole plates. The effective guided magnetic flux to the respective pole plate is gained. In addition, the radial dimension of the stator is reduced, as each pole plate is provided with the most efficient number of pole face(s) and the overall thickness of the respective pole face is reduced.
Claims11
A stator comprising:
- a bobbin having an axial winding wound therearound;
- plural pole plates each having a pole end, each said pole end having a pole face;
- and
- an axle tube extending through the bobbin and said plural pole plates, the axle tube conducting magnetic flux created by the winding to said plural pole plates;
- a half of said plural pole plates being mounted on top of the bobbin and another half of said plural pole plates being mounted to a bottom of the bobbin, the number of the half of said plural pole plates mounted on top of the bobbin being not less than two, the number of the half of said plural plates mounted to the bobbin being not less than two, thereby increasing magnetization, reducing magnetic flux leakage, and gaining effective guided overall magnetic flux by means of increasing an overall thickness for effectively conducting the magnetic flux to said plural pole plates.
A stator comprising:
- a bobbin having an axial winding wound therearound;
- plural pole plates each having two diametrically disposed pole ends, each said pole end having a pole face;
- and
- an axle tube extending through the bobbin and said plural pole plates, the axle tube conducting magnetic flux created by the winding to said plural pole plates;
- a half of said plural pole plates being mounted on top of the bobbin and another half of said plural pole plates being mounted to a bottom of the bobbin, the number of the half of said plural pole plates mounted on top of the bobbin being not less than two, the number of the half of said plural plates mounted to the bobbin being not less than two, thereby increasing magnetization, reducing magnetic flux leakage, and gaining effective guided overall magnetic flux by means of increasing an overall thickness for effectively conducting the magnetic flux to said plural pole plates.
Dependencies are inferred from the claim text.