US 12,191,787 B2
Motor drive apparatus
Kenta Yamamoto, Fuji (JP); Masaki Kanamori, Fuji (JP); Yohei Kubota, Fuji (JP); and Keiichi Kato, Fuji (JP)
Assigned to Carrier Japan Corporation, Tokyo (JP)
Filed by Carrier Japan Corporation, Tokyo (JP)
Filed on Feb. 17, 2023, as Appl. No. 18/170,899.
Application 18/170,899 is a continuation of application No. PCT/JP2020/031095, filed on Aug. 18, 2020.
Prior Publication US 2023/0208337 A1, Jun. 29, 2023
Int. Cl. H02P 25/22 (2006.01); H02P 27/06 (2006.01)
CPC H02P 25/22 (2013.01) [H02P 27/06 (2013.01); H02P 2201/03 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A motor drive apparatus of a motor including a plurality of phase windings in a mutually unconnected state, comprising:
a converter which converts AC voltages into a DC voltage;
a capacitor connected to the converter;
a first inverter which controls electrification of portions between the capacitor and one ends of the phase windings; and
a second inverter which controls electrification of portions between the capacitor and the other ends of the phase windings, wherein
the first and second inverters are first and second modules each of which is configured in such a manner that a switching circuit including a positive side terminal and negative side terminals is accommodated in one package, and the positive side terminal and the negative side terminals of the switching circuit are arranged on the package in a predetermined order together with a plurality of output terminals to be connected to the phase windings, and the first and second modules are arranged on one circuit board in a state where the negative side terminals of the first and second modules are respectively close to each other, and
the motor drive apparatus further comprises a first conductive member which connects each of the negative side terminals of the first and second modules and a negative side terminal of the capacitor to each other.