Title:
平滑コンデンサ部及びスナバコンデンサを有するモータ駆動装置
Document Type and Number:
Japanese Patent JP7303087
Kind Code:
B2
Abstract:
A motor drive apparatus includes a smoothing capacitor unit including at least one smoothing capacitor provided between a converter circuit and an inverter circuit in a power conversion circuit that generates motor drive power, a snubber capacitor for suppressing a surge voltage of a power device forming a part of the power conversion circuit, and a support plate on which the smoothing capacitor unit is mounted, wherein an electrode terminal of the smoothing capacitor unit and an electrode terminal of the snubber capacitor are placed in proximity to each other with the support plate being sandwiched between them, and a positive electrode terminal of the smoothing capacitor unit and a positive electrode terminal of the snubber capacitor are electrically connected to each other, and a negative electrode terminal of the smoothing capacitor unit and a negative electrode terminal of the snubber capacitor are electrically connected to each other.
Inventors:
Ryo Matsuda
Taku Sasaki
Taku Sasaki
Application Number:
JP2019188835A
Publication Date:
July 04, 2023
Filing Date:
October 15, 2019
Export Citation:
Assignee:
FANUC CORPORATION
International Classes:
H02M7/48; H02M7/06; H02P27/06
Domestic Patent References:
| JP2011078309A | ||||
| JP2005228976A | ||||
| JP2014110721A |
Foreign References:
| WO2013132528A1 |
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mihashi
Shigeki Hirose
Shinji Mihashi
Shigeki Hirose
Previous Patent: shock absorbing structure
Next Patent: Cell number determination device, charger, battery pack, and charging system
Next Patent: Cell number determination device, charger, battery pack, and charging system