MOTOR

• Main Authors: ASAHI KYOHEI, ABIKO ATSUSHI
• Format: Patent
• Language: English; Japanese
• Published: 27.12.2018
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

To provide a motor that can suppress deformation (distortion) of a resin structure caused by driving of the motor and suppress occurrence of a pulsation torque.SOLUTION: This motor 100 includes: a rotor core 1 in which a plurality of electromagnetic steel plate sections 10 including a plurality of first electromagnetic steel plate sections 10a are laminated in the rotary axis direction; a plurality of permanent magnets 3 buried in the rotor core 1 and arranged circumferentially; and a mold section 4 provided so as to cover at least part of the rotor core 1 and the permanent magnets 3. The rotor core 1 includes an inner yoke section 11 having an annular shape and a plurality of outer yoke sections 12 arranged circumferentially on the outer diameter side of the inner yoke section 11. Then, each of the plurality of first electromagnetic steel plate sections 10a includes a projection 13 that supports the vicinity of a circumferential end 3b of a surface 3a on the outer diameter side of the permanent magnet 3 arranged between adjacent outer yoke sections 12.SELECTED DRAWING: Figure 3 【課題】モータの駆動により樹脂構造体が変形する（歪む）のを抑制するとともに、脈動トルクの発生を抑制することが可能なモータを提供する。【解決手段】このモータ１００は、複数の第１電磁鋼板部１０ａを含む複数の電磁鋼板部１０が回転軸方向に積層されたロータコア１と、ロータコア１に埋め込まれ、周状に配置されている複数の永久磁石３と、ロータコア１の少なくとも一部および永久磁石３を覆うように設けられるモールド部４と、を備える。ロータコア１は、円環形状の内ヨーク部１１と、内ヨーク部１１の外径側に周状に配置される複数の外ヨーク部１２とを含む。そして、複数の第１電磁鋼板部１０ａの各々は、隣接する外ヨーク部１２の間に配置される永久磁石３の外径側の面３ａの周方向の端部３ｂ近傍を支持する突起部１３を含む。【選択図】図３