To suppress reduction in a rotation speed within a range of an operating point torque under a high load by adjusting a rotation speed change with a rise of a motor temperature.SOLUTION: A motor part M of a wiper motor 1 comprises: a stator 10 to which a magnet 4 is fixed; and a rotor 3 around which an armature coil 7 is wound and which is provided in a freely rotatable manner with respect to the stator 10. In the motor part M, as heating means, a heat transfer line 26 is provided between a minus-side brush 19 and the magnet 4, and heat of the brush 19 is transferred through the heat transfer line 26 to the magnet 4. In the wiper motor 1, the magnet 4 is heated via the heat transfer line 26 by utilizing the heat of the brush 19 so as to reduce a temperature difference between the magnet 4 and the armature coil 7 during motor actuation. Thus, an inclination of a characteristic drawing of a rotation speed becomes steeper than a case of no processing, at a high torque side of an operating point torque range, the rotation speed is not almost reduced from that at a time of ordinary temperature.SELECTED DRAWING: Figure 3

    【課題】モータ温度の上昇に伴う回転数変化を調整し、高負荷時における動作点トルクの範囲内での回転数低下を抑制する。【解決手段】ワイパモータ1のモータ部Mは、マグネット4が固定されたステータ10と、アーマチュアコイル7が巻装されステータ10に対し回転自在に設けられたロータ3を有する。モータ部Mには、加熱手段として、マイナス側のブラシ19とマグネット4との間に伝熱線26が設けられており、ブラシ19の熱が伝熱線26を介してマグネット4に伝わる。ワイパモータ1では、モータ作動中に、マグネット4とアーマチュアコイル7の温度差が小さくなるように、ブラシ19の熱を利用し、伝熱線26を介してマグネット4を加熱する。これにより、回転数の特性線図の傾きが、無処置の場合よりも急になり、動作点トルク範囲の高トルク側においても回転数が常温時からほとんど低下しなくなる。【選択図】図3


    Access

    Download


    Export, share and cite



    Title :

    ELECTRIC MOTOR, ELECTRIC MOTOR CONTROL DEVICE, AND ELECTRIC MOTOR CONTROL METHOD


    Additional title:

    電動モータ、電動モータ制御装置および電動モータ制御方法


    Contributors:

    Publication date :

    2020-07-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



    ELECTRIC MOTOR CONTROL DEVICE AND ELECTRIC MOTOR CONTROL METHOD

    KAMIO SHIGERU | European Patent Office | 2021

    Free access

    ELECTRIC MOTOR CONTROL DEVICE AND ELECTRIC MOTOR CONTROL METHOD

    KAMIO SHIGERU | European Patent Office | 2020

    Free access

    ELECTRIC MOTOR CONTROL DEVICE AND ELECTRIC MOTOR CONTROL METHOD

    KAMIO SHIGERU | European Patent Office | 2020

    Free access

    ELECTRIC VEHICLE ELECTRIC MOTOR CONTROL METHOD AND ELECTRIC VEHICLE ELECTRIC MOTOR CONTROL DEVICE

    KUJUBU NAOTERU / SHINDO IKUMA / SUZUKI TATSUYA | European Patent Office | 2020

    Free access

    ELECTRIC MOTOR CONTROL METHOD AND ELECTRIC MOTOR CONTROL DEVICE

    SHOUJI MITSUHIRO / KOJIMA TETSURO | European Patent Office | 2023

    Free access