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    • 1. 发明授权
    • Motor
    • 发动机
    • US07218026B2
    • 2007-05-15
    • US10494600
    • 2002-11-08
    • Hiroshi MurakamiHisakazu KataokaAkihiko WatanabeHiroaki TanakaAkihiko YamazakiShinichi OkuyamaYasutake Seki
    • Hiroshi MurakamiHisakazu KataokaAkihiko WatanabeHiroaki TanakaAkihiko YamazakiShinichi OkuyamaYasutake Seki
    • H02K1/00
    • H02K19/103H02K1/148H02K3/522H02K2203/03
    • The objective of this invention is to provide a motor which can reduce occurrence of a torque reduction in the overload, and also lower the temperature of a motor main body immediately even in the case of a temperature rise in the motor main body.This motor comprises: a stator 20 that is constituted by a stator main body 1 having a plurality of slots 4 formed on the circumference of the main body with equal intervals from each other and teeth 3 each of which is located between the slots 4, and extends outward along the radial direction from the slot bottom face of the slots 4 with the same width, and a coil bobbin 7 that is attached to each of the teeth 3 of the stator main body 1, and is formed by winding a wire 6 around a bobbin 5 that has been preliminarily made from an insulating material such as a resin, in a concentrated winding system; and a rotor 2 that is maintained on the circumference of the stator 20 concentrically with the stator main body 1, in a manner so as to face the stator main body 1 through a predetermined air gap 19.
    • 本发明的目的是提供一种能够减少过载中的转矩降低的发生的电动机,即使在电动机主体的温度升高的情况下也能够立即降低电动机主体的温度。 该电动机包括:定子20,其由定子主体1构成,定子主体1具有形成在主体的圆周上的多个槽4,其间隔相等,齿3位于槽4之间, 沿着径向从槽4的槽底面以相同的宽度向外延伸;以及线圈架7,其被安装在定子主体1的每个齿3上,并且通过绕线6绕绕而形成 在集中卷绕系统中预先由诸如树脂的绝缘材料制成的线轴5; 以及与定子主体1同心地保持在定子20的圆周上的转子2,以通过预定的气隙19与定子主体1相对的方式。
    • 6. 发明申请
    • ELECTRIC MOTOR AND ELECTRIC DEVICE PROVIDED THEREWITH
    • 电动机及电动装置
    • US20120112588A1
    • 2012-05-10
    • US13384008
    • 2010-09-07
    • Akihiko WatanabeTakehiko HasegawaHirofumi MizukamiHaruhiko KadoGenki Kondo
    • Akihiko WatanabeTakehiko HasegawaHirofumi MizukamiHaruhiko KadoGenki Kondo
    • H02K7/08
    • H02K1/276H02K5/1732H02K11/01H02K11/40
    • Provided is an electric motor driven by an inverter of PWM method, and devised to retard electrolytic corrosion in a bearing. A rotating body of a rotor comprises an outer iron core configuring an outer peripheral portion of the rotating body, an inner iron core configuring an inner peripheral portion connected to a shaft, a dielectric layer disposed between the outer iron core and the inner iron core, a plurality of insertion holes penetrating the outer iron core in the axial direction, and permanent magnets inserted individually in the plurality of insertion holes. It thus becomes possible to increase impedance of the rotor side (inner ring side of bearing) to approximate it to impedance of the stator side (outer ring side of the bearing) to thereby bring high frequency potentials balanced between the inner ring side and the outer ring side of the bearing, so as to provide the electric motor that retards electrolytic corrosion liable to occur in the bearing, and an electric device equipped with the same.
    • 提供由PWM方式的逆变器驱动的电动机,并且设计为延迟轴承中的电解腐蚀。 转子的旋转体包括构成旋转体的外周部的外铁芯,构成与轴连接的内周部的内铁芯,配置在外铁芯与内铁芯之间的电介质层, 沿轴向贯穿外铁芯的多个插入孔和分别插入到多个插入孔中的永磁体。 因此,可以增大转子侧(轴承的内圈侧)的阻抗,使其与定子侧(轴承的外圈侧)的阻抗近似,从而使内圈侧和外侧之间的高频电位平衡 从而提供延迟容易发生在轴承中的电解腐蚀的电动机以及配备该电动机的电动装置。