Motor, and electric power steering apparatus and vehicle in which said motor is mounted
US10461619B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2015 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Oct 22, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
[Problem]An object of the present invention is to provide the motor which is possible to obtain the skew effect within the rotor gap surface by arranging the respective magnetic pole pitches at imbalance positions without causing the increasing of the magnet machining cost and the rotor assembly time, and the electric power steering apparatus equipped with the motor and a vehicle.[Means for Solving the Problem]The present invention is a motor that has a skew effect within a rotor gap surface of a mechanical angle one-cycle, wherein a rotor magnetic pole comprises plural magnetic salient pole portions by means of magnetic material, an N-pole and an S-pole magnets are alternately arranged on a rotor surface between the magnetic salient pole portions, and magnetic pole pitches of an electrical angle one-cycle, which comprise the magnetic salient pole portions and the N-pole and the S-pole magnets, are unevenly arranged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.