公开(公告)号：US20210234434A1

公开(公告)日：2021-07-29

申请号：US16901082

申请日：2020-06-15

Applicant: LG ELECTRONICS INC.

Inventor： Deokkyu LEE ,  Jinho YOON ,  Junggu LEE

IPC: H02K9/19 ,  H02K5/20 ,  H02K5/02 ,  H02K5/18 ,  H02K5/06

Abstract: A motor housing assembly for cooling a motor assembly is disclosed. The motor housing assembly includes a stator and a rotor. To reduce a weight and a manufacturing cost, the motor housing assembly includes an aluminum housing coupled to an outer circumferential surface of a motor assembly and configured to form a first space between the aluminum housing and the motor assembly, the first space including an oil flow channel and a plastic housing coupled to an outer circumferential surface of the aluminum housing and configured to form a second space between the plastic housing and the aluminum housing, the second space including a water flow channel.

公开(公告)号：US20200244124A1

公开(公告)日：2020-07-30

申请号：US16750174

申请日：2020-01-23

Applicant: LG ELECTRONICS INC.

Inventor： Joon KANG ,  Jinho YOON

IPC: H02K1/32

Abstract: The present disclosure relates to an electric motor that may include a housing provided therein with an accommodating space; a stator having a stator core and provided in the accommodating space of the housing; a rotor having a rotor core and rotatably mounted inside the stator with an air gap therebetween; a rotating shaft provided therein with a hollow portion and having a plurality of rotating shaft injection holes formed at a central portion thereof, so that a cooling fluid introduced into the hollow portion is sprayed through the plurality of rotating shaft injection holes into the rotor core; and a plurality of cooling passages provided in the rotor core, and having one side thereof communicating with each of the plurality of rotating shaft injection holes and another side thereof communicating with the accommodating space, so that the cooling fluid is sprayed in different directions toward opposite ends to a central portion of the rotor core.