To provide an electric power conversion device provided with an element arrangement in which independence of a power source is secured and an element arrangement in which an impedance difference between phases can be easily suppressed.SOLUTION: An electric power conversion device 1000, which supplies electric power to a motor having winding of an n-phase, is provided with: a first inverter 101 comprising switch elements with n-phases respectively which are connected to one end of the winding; a second inverter 102 comprising switch elements of n-phases respectively which are connected to the other end with respect to the one end; and a base plate that is mounted with switch elements 113H-118L of n-phases respectively and common elements (separation switches 121-124) provided in at least either of a power source end and a grand end in common with the switch elements of the respective phases, for the first and the second inverters. The base plate is partitioned into a mounting area for the first inverter and a mounting area for the second inverter, and the switch elements and the common elements in the inverters are mounted in n+1 locations circularly arranged when viewed from a direction perpendicular to the base plate to be divided into the common elements and the phases.SELECTED DRAWING: Figure 1
【課題】電源の独立性が確保された素子配置と、相同士のインピーダンス差の抑制が容易な素子配置と、を備えた電力変換装置を提供する。【解決手段】n相の巻線を有するモータに電力を供給する電力変換装置1000は、巻線の一端に接続される、n相それぞれのスイッチ素子を備えた第1インバータと101、一端に対する他端に接続される、n相それぞれのスイッチ素子を備えた第2インバータ102と、第1、第2インバータについて、n相それぞれのスイッチ素子113H〜118Lと、各相のスイッチ素子に対する共通の電源端およびグランド端の少なくとも一方に設けられた共通素子(分離スイッチ121〜124)とが実装される。基板は、第1インバータの実装領域と、第2インバータの実装領域とに区画され、各インバータにおけるスイッチ素子及び共通素子は、基板に垂直な方向から見て環状に並んだn+1箇所に、共通素子および各相に分配されて実装される。【選択図】図1
ELECTRIC POWER CONVERSION DEVICE, DRIVING DEVICE AND POWER STEERING DEVICE
電力変換装置、駆動装置およびパワーステアリング装置
2021-03-25
Patent
Electronic Resource
Japanese
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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