The invention provides a power conversion device, a drive device, and a power steering device, which are capable of ensuring independent element arrangement of a power supply and easily suppressing impedance difference between phases. This power conversion device is provided with: a first inverter connected to one end of a winding; a second inverter connected to the other end opposite to the one end; a substrate, wherein the first inverter and the second inverter are provided with switching elements of n phases and a common element which is arranged at least one of a power supply terminal and a ground terminal shared by the switching elements of the n phases, and the substrate is divided into an installation area of the first inverter and an installation area of the second inverter. For each of the n phases, switching elements at both ends that bear current supply to one winding are mounted in point symmetry with respect to each other when viewed from a direction perpendicular to the substrate, and the center of symmetry is shared in the n phases.

    提供电力转换装置、驱动装置以及助力转向装置,实现确保了电源的独立性的元件配置并且容易抑制相彼此间的阻抗差的元件配置。电力转换装置具有:第1逆变器,其与绕组的一端连接;第2逆变器,其与上述一端所相对的另一端连接;基板,上述第1逆变器和上述第2逆变器在基板上安装有n相各自的开关元件和设置于各相的开关元件所共用的电源端和接地端中的至少一方的共用元件,上述基板被划分为上述第1逆变器的安装区域和上述第2逆变器的安装区域,对于各个上述n相,在从与上述基板垂直的方向观察时,承担着对一个绕组的电流供给的两端的开关元件互相呈点对称地安装,并且对称中心在n相中共用。


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    Title :

    Power conversion device, drive device, and power steering device


    Additional title:

    电力转换装置、驱动装置以及助力转向装置


    Contributors:

    Publication date :

    2021-04-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B62D MOTOR VEHICLES , Motorfahrzeuge / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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