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    • 6. 发明专利
    • Power conversion device
    • 电源转换器件
    • JP2013219920A
    • 2013-10-24
    • JP2012088319
    • 2012-04-09
    • Mitsubishi Electric Corp三菱電機株式会社
    • SEKIMOTO YASUHIROKANDA MITSUHIKOTAMURA SHIZURI
    • H02M7/48
    • PROBLEM TO BE SOLVED: To provide a power conversion device capable of reducing noise radiated from a cable to which a reactor is connected.SOLUTION: A power conversion device includes: a converter circuit 12 converting an AC voltage from an AC power supply into a DC voltage; a smoothing circuit 13 smoothing the DC voltage outputted from the converter circuit 12; an inverter circuit 14 converting the DC voltage outputted from the smoothing circuit 13 into an AC voltage; a reactor connection conductor 19a electrically connecting between the converter circuit 12 and a cable 9a; a reactor connection conductor 19b electrically connecting between the smoothing circuit 13 and a cable 9b; a capacitor 21 having one end connected to the reactor connection conductor 19a and the other end connected to ground potential; and a second capacitor having one end connected to the reactor connection conductor 19b and the other end connected to the ground potential.
    • 要解决的问题:提供一种能够减少从与电抗器连接的电缆辐射的噪声的电力转换装置。解决方案:电力转换装置包括:转换器电路12,将交流电压从交流电源转换为直流 电压; 对从转换器电路12输出的直流电压进行平滑化的平滑电路13; 将从平滑电路13输出的直流电压转换为交流电压的逆变器电路14; 电连接在转换器电路12和电缆9a之间的电抗器连接导体19a; 电连接在平滑电路13和电缆9b之间的电抗器连接导体19b; 电容器21,其一端连接到电抗器连接导体19a,另一端连接到地电位; 以及第二电容器,其一端连接到电抗器连接导体19b,另一端连接到地电位。
    • 7. 发明专利
    • Inverter-driven motor
    • 逆变器电机
    • JP2011250550A
    • 2011-12-08
    • JP2010119752
    • 2010-05-25
    • Mitsubishi Electric Corp三菱電機株式会社
    • TAMURA SHIZURI
    • H02K5/22H02K11/02
    • PROBLEM TO BE SOLVED: To provide an inverter-driven motor with high shield effect against high-frequency noise of an inverter.SOLUTION: In an inverter-driven motor 91, an AC power is supplied from an inverter through a shield cable 30 in which the surface is coated with an insulating layer, and a body 10 is grounded. An exposed part of a shield member 31 is formed on the connection end of the shield cable 30 near a motor by partially removing the insulating layer. The exposed part of the shield member 31 is brought into contact with the body 10 or an leg 14 conductively connected to the body 10, so that the exposed part of the shield member 31 is crushed by a metal presser 40, thereby being brought into surface contact with the body 10 or the leg 14 conductively connected to the body 10.
    • 要解决的问题:提供对逆变器的高频噪声具有高屏蔽效应的变频器驱动电机。 解决方案:在逆变器驱动的电动机91中,通过屏蔽电缆30从逆变器提供交流电力,其中表面被绝缘层涂覆,并且主体10接地。 屏蔽构件31的暴露部分通过部分去除绝缘层而形成在电动机附近的屏蔽电缆30的连接端上。 屏蔽构件31的暴露部分与主体10或导体连接到主体10的腿14接触,使得屏蔽构件31的暴露部分被金属按压器40压碎,从而被带入表面 与身体10或腿部14接触,导体连接到身体10.版权所有(C)2012,JPO&INPIT