Motor
The invention provides a motor which improves the accuracy of position estimation of a rotor. A rotor of a motor according to one embodiment includes a rotor core (31) formed of a magnetic body, a plurality of magnets (33) arranged on the rotor core along a rotation direction of the rotor, and a plu...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention provides a motor which improves the accuracy of position estimation of a rotor. A rotor of a motor according to one embodiment includes a rotor core (31) formed of a magnetic body, a plurality of magnets (33) arranged on the rotor core along a rotation direction of the rotor, and a plurality of Hall elements disposed on a common mounting surface (41a) and capable of detecting a magnetic field of the magnets. Each of the plurality of magnets (33) has a facing surface (38) facing the mounting surface, and the distance between the facing surface and the mounting surface is constant. The rotor core has a facing surface (31b) facing the mounting surface, and has a first region (R1) and a second region (R2) in which the distances between the facing surface and the mounting surface are different from each other. The first regions and the second regions are alternately arranged along the rotation direction of the rotor. The number of groups formed by one first region and one second region adjacent to th |
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