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. A power conversion device is used for converting power from a power source and supplying the converted power to a motor having an n-phase winding, n being an integer of 3 or more, includes: a first inverter connected to one end of the winding and having switching elements for each of the n phases; a second inverter connected to the other end opposite the one end and having switching elements for each of n phases; a substrate, wherein the first and second inverters are provided with switching elements of each of n phases and a common element which is arranged on at least one of a power supply terminal and a ground terminal provided to the switching elements of each phase on the substrate, and the substrate is divided into mounting regions for the first and second inverters. The switching elements and the common elements in the first and second inverters are distributed and mounted for the common elements and each phase at n + 1 locations arranged in a ring shape when viewed from a direction perpendicular to the substrate.
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。电力转换装置对来自电源的电力进行转换并提供给具有n相的绕组的马达,n为3以上的整数,具有:第1逆变器,其与绕组的一端连接,具有n相各自的开关元件;第2逆变器,其与一端所相对的另一端连接,具有n相各自的开关元件;基板,第1和第2逆变器在基板上安装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的至少一方的共用元件,基板被划分为第1和第2逆变器的安装区域,第1和第2逆变器中的开关元件和共用元件在从与基板垂直的方向观察时呈环状排列的n+1个部位按共用元件和各相来分配安装。
Power conversion device, drive device, and power steering device
电力转换装置、驱动装置以及助力转向装置
09.04.2021
Patent
Elektronische Ressource
Chinesisch
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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