| 摘要 |
<p>A large-diameter type three-phase brushless permanent magnet direct current motor and an assembling method thereof. The number of magnetic poles on a rotor core is 2P. The number of slots in a stator core is Z. Z teeth on the stator are composed of Z/2 large teeth and Z/2 small teeth. One insertion slot (11) is disposed on each yoke between two adjacent large teeth. Each small tooth is formed by inserting an end part of each small tooth core into one of the insertion slots. Each large tooth occupies an electrical circumferential angle falling within a range of 150°~234°,each small tooth together with the notches on its two sides occupies an electrical circumferential angle falling within a range of 90°~6°, and the sum of electrical angles of one large tooth and one small tooth is 240 degree. Three-phase windings are wound on Z/2 large teeth separately, and Z/6 concentrated windings are arranged at each phase. During assembling, firstly, the windings are wound on the large teeth separately, and then the small teeth are embedded. The motor is convenient to wind the windings, and may be used as a torque motor or a wind generator.</p> |
