Patent ID: 11923753
Assignee: LG ELECTRONICS INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. The electric motor of claim 16, further comprising an inverter configured to control a speed of the electric motor, the inverter comprising:
an insulated-gate bipolar transistor (IGBT);
a capacitor;
a Printed Circuit Board (PCB) that supports the IGBT and the capacitor thereon, the PCB being spaced apart from the first housing cover in the axial direction, wherein the first housing cover comprises a plurality of first coupling portions that protrude from the outer ring portion toward the PCB; and
a plurality of second coupling portions that protrude from an edge portion of the PCB toward the plurality of first coupling portions, respectively, each of the plurality of second coupling portions being coupled to one of the plurality of first coupling portions,
wherein the PCB and the first housing cover define a plurality of lateral flow paths therebetween, the plurality of lateral flow paths being defined between the plurality of second coupling portions and configured to introduce the air in a radial direction, and
wherein the plurality of lateral flow paths are in fluid communication with the plurality of axial through-holes.