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    • 7. 发明申请
    • Electric motor
    • 电动马达
    • US20050275301A1
    • 2005-12-15
    • US11153713
    • 2005-06-15
    • Kazumitsu MoriyaMasayuki KuwanoToshio YamamotoYoshiki NakanoYasuhide Ito
    • Kazumitsu MoriyaMasayuki KuwanoToshio YamamotoYoshiki NakanoYasuhide Ito
    • H02K1/17H02K21/12H02K23/04H02K37/00
    • H02K23/04
    • An electric motor includes a cylindrical yoke main body and a plurality of permanent magnets having an arcuate cross-section. The permanent magnets are secured to a inner circumferential surface of the yoke main body such that the permanent magnets are continuous with one another along the entire circumference of the yoke main body, thereby forming a ring. An even number of magnetic poles are formed in the permanent magnets at predetermined angular intervals along the circumferential direction of the yoke main body. A pair of the magnetic poles that are adjacent to each other in the circumferential direction of the yoke main body have different magnetic polarities from each other. At least one of the permanent magnets is provided with a section where the magnetic polarity changes in the circumferential direction of the yoke main body. This suppresses vibration excited in a stator that causes vibration and noise.
    • 电动机包括圆柱形磁轭主体和具有弓形横截面的多个永磁体。 永磁体被固定在轭主体的内周面上,使得永久磁铁沿着轭主体的整个圆周彼此连续,从而形成环。 在磁轭主体的圆周方向上以规定的角度间隔在永久磁铁上形成有数个磁极。 在磁轭主体的圆周方向上彼此相邻的一对磁极具有彼此不同的磁极性。 永磁体中的至少一个设置有磁轭在轭主体的圆周方向上变化的部分。 这抑制了引起振动和噪声的定子中激发的振动。
    • 9. 发明授权
    • Direct-current motor with improved branched tooth arrangement
    • 具有改进的分支齿布置的直流马达
    • US08350437B2
    • 2013-01-08
    • US12564703
    • 2009-09-22
    • Yoshiaki DoushitaKeita KawaiKazumitsu MoriyaToshio YamamotoMasaya HorikawaMasaaki Shimizu
    • Yoshiaki DoushitaKeita KawaiKazumitsu MoriyaToshio YamamotoMasaya HorikawaMasaaki Shimizu
    • H02K3/28H02K3/20H02K23/26
    • H02K23/36H02K1/146H02K23/405Y10T29/49012
    • A motor is provided that includes magnetic poles, an armature core, armature coils, a commutator, and power supply brushes. The armature core includes teeth arranged in the circumferential direction to extend in a radial pattern. The armature coils include inner layer coils and outer layer coils. Each of the inner layer coils is wound around radially proximal end portions of two circumferentially adjacent teeth or a radially proximal end portion of one of the teeth. The inner layer coils are arranged in the circumferential direction without overlapping each other in the radial direction. Each of the outer layer coils is wound around radially distal end portions of two circumferentially adjacent teeth by distributed winding. The outer layer coils are arranged radially outward of the inner layer coils and are arranged in the circumferential direction without overlapping each other in the radial direction. The circumferential center of the inner layer coils and the circumferential center of the outer layer coils are displaced in the circumferential direction.
    • 提供一种电动机,其包括磁极,电枢铁芯,电枢线圈,换向器和电源电刷。 电枢铁心包括在圆周方向上布置的以径向图案延伸的齿。 电枢线圈包括内层线圈和外层线圈。 每个内层线圈缠绕在两个周向相邻的齿的径向近端部分或其中一个齿的径向近端部分。 内层线圈沿圆周方向排列而不在径向上彼此重叠。 每个外层线圈通过分布绕组缠绕在两个周向相邻的齿的径向远端部分上。 外层线圈排列在内层线圈的径向外侧,并且沿圆周方向排列而不在径向上彼此重叠。 内层线圈的周向中心和外层线圈的周向中心在圆周方向上位移。