| 摘要 |
本发明之目的在于提供一种以更高之水准满足高转矩、高输出、及尺寸之小型化之同步型驱动马达。;本发明之同步型驱动马达包括：定子，其包含具备于周向空出槽而设置之复数个齿之定子芯及通过上述槽之绕组，且上述复数个齿之全部具有卷绕有上述绕组之部分；以及转子，其包含：复数个永久磁铁部，其等沿周向空出间隔而配置，且各者具有朝向上述定子芯之磁铁面；背轭部，其设置于上述定子芯与上述磁铁面相对之方向上之与上述复数个永久磁铁部之上述磁铁面为相反侧且支持上述复数个永久磁铁部；及复数个辅助轭部，其等设置于上述背轭部，且位于上述间隔且与上述定子芯对向；且上述复数个齿具有与上述磁铁面对向之前端部，且上述前端部具有小于数量多于上述复数个齿之数量之上述磁铁面之周向宽度与上述辅助轭部之前端面之周向宽度之和的周向宽度。; and a rotor including a plurality of permanent magnet parts, a back yoke part, and a plurality of auxiliary yoke parts, the plurality of permanent magnet parts being arranged at intervals in the circumferential direction, each of the plurality of permanent magnet parts having a magnet face facing the stator core, the back yoke part supporting the plurality of permanent magnet parts, the back yoke part being provided opposite to the magnet faces of the plurality of permanent magnet parts with respect to a direction of opposing between the stator core and the magnet faces, the plurality of auxiliary yoke parts being provided to the back yoke part and arranged in the intervals, the plurality of auxiliary yoke parts being opposed to the stator core. Each of the plurality of teeth includes a distal end portion that is opposed to the magnet face. The distal end portion has a smaller circumferential width than the sum of a circumferential width of the magnet face and a circumferential width of a distal end surface of the auxiliary yoke part. The number of the magnet faces is more than the number of the teeth. |
