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公开(公告)号：US20210336506A1
公开(公告)日：2021-10-28
申请号：US17264567
申请日：2019-06-21
Applicant: LG Electronics Inc.
Inventor： Jongsu KIM , Taehee KWAK , Jungwook MOON , Changhum JO
Abstract: The present invention relates to a motor comprising: a motor housing for receiving a stator and a rotor therein; an outer housing detachably coupled to the outside of the motor housing; a first cooling path which is formed inside the outer housing and in which a first cooling fluid flows; a second cooling path which is formed inside the motor housing and in which a second cooling fluid flows to be capable of exchanging heat with the first cooling fluid; and a plurality of spray holes interconnected to one side of the first cooling path and formed to extend through the motor housing toward an inner space of the motor housing from the outer housing to spray the first cooling fluid into the inner space of the motor housing, and thus the present invention allows an oil path housing for oil-cooling to be easily attached to or detached from a water-cooling path housing.
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公开(公告)号：US20240136889A1
公开(公告)日：2024-04-25
申请号：US18238828
申请日：2023-08-27
Applicant: LG ELECTRONICS INC.
Inventor： Jangwon LEE , Myungkeun YOO , Changhum JO
CPC classification number: H02K7/14 , B60K7/0007 , H02K9/06 , H02K9/227 , H02K2211/03
Abstract: A robot wheel driving apparatus includes a wheel to which a tire is coupled and configured to drive a robot, a wheel cover covering and coupled to both sides of the wheel, a motor housing inserted into the wheel, and a motor embedded in the motor housing and configured to provide a rotating force to the wheel. The wheel cover includes a wheel cover hole configured to allow air to flow from an outside of the wheel cover toward the wheel, and the wheel includes a wheel hole configured to allow air flowing into the wheel through the wheel cover hole to flow toward the motor housing, and a blade configured to allow air to flow between the wheel and the motor housing by rotation of the wheel.
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公开(公告)号：US20210273520A1
公开(公告)日：2021-09-02
申请号：US17259409
申请日：2019-06-18
Applicant: LG Electronics Inc.
Inventor： Jongsu KIM , Taehee KWAK , Jungwook MOON , Changhum JO
Abstract: The present invention relates to a motor having dual flow paths of an oil-water composite cooling method, the motor comprising: a motor housing accommodating a stator and a rotor therein; and the dual flow paths formed inside the motor housing so as to cool the stator and the rotor by means of the oil-water composite cooling method, wherein the dual flow paths comprise: an oil flow path formed in a spiral shape such that oil flows inside a wall body of the motor housing; and a cooling water flow path formed in a spiral shape such that cooling water flows inside the wall body of the motor housing, and can improve cooling efficiency and cooling performance.
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Patent Agency Ranking
公开(公告)号：US20180287452A1
公开(公告)日：2018-10-04
申请号：US15933654
申请日：2018-03-23
Applicant: LG ELECTRONICS INC.
Inventor： Jongsu KIM , Taehee KWAK , Jungwook MOON , Changhum JO
Abstract: Disclosed herein is a motor including a shaft, a rotor, a motor housing forming an inner space to receive the shaft and the rotor therein, a stator received in the motor housing and disposed outside the rotor based on a radial direction of the shaft, a first flow path disposed outside the stator based on the radial direction of the shaft such that a first fluid flows in the first flow path, the first fluid being discharged to the inner space and cooling the stator and the rotor, and a second flow path disposed between the first flow path and the stator based on the radial direction of the shaft such that a second fluid flows in the second flow path, the second fluid absorbing heat of the stator transferred through a flow path wall.
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公开(公告)号：US20180026486A1
公开(公告)日：2018-01-25
申请号：US15547174
申请日：2016-01-28
Applicant: LG ELECTRONICS INC.
Inventor： Changhum JO , Kyunghoon LEE , Kwangyong JANG , Jongwon KIM
Abstract: A brushless direct current (BLDC) motor is disclosed. The BLDC motor includes a shaft made of a nonmagnetic material, a plurality of magnets surrounding the outer circumference of the shaft, a stator surrounding the outer circumferences of the magnets, wherein each of the magnets has an arc-shaped outer circumferential surface, an arc-shaped inner circumferential surface facing the shaft, and opposite side surfaces facing other adjacent magnets, and the magnets include a first magnet magnetized in a direction directed from the outer circumferential surface to the inner circumferential surface, a second magnet magnetized in a direction directed from the inner circumferential surface to the outer circumferential surface, and a third magnet magnetized in a direction directed from one side surface to the other side surface. The efficiency of the motor is improved while eddy current loss is minimized.
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公开(公告)号：US20240235324A9
公开(公告)日：2024-07-11
申请号：US18238828
申请日：2023-08-28
Applicant: LG ELECTRONICS INC.
Inventor： Jangwon LEE , Myungkeun YOO , Changhum JO
CPC classification number: H02K7/14 , B60K7/0007 , H02K9/06 , H02K9/227 , H02K2211/03
Abstract: A robot wheel driving apparatus includes a wheel to which a tire is coupled and configured to drive a robot, a wheel cover covering and coupled to both sides of the wheel, a motor housing inserted into the wheel, and a motor embedded in the motor housing and configured to provide a rotating force to the wheel. The wheel cover includes a wheel cover hole configured to allow air to flow from an outside of the wheel cover toward the wheel, and the wheel includes a wheel hole configured to allow air flowing into the wheel through the wheel cover hole to flow toward the motor housing, and a blade configured to allow air to flow between the wheel and the motor housing by rotation of the wheel.
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公开(公告)号：US20210257883A1
公开(公告)日：2021-08-19
申请号：US17252581
申请日：2019-06-14
Applicant: LG Electronics Inc.
Inventor： Jongsu KIM , Taehee KWAK , Jungwook MOON , Changhum JO
Abstract: The present invention relates to a drive system for an electric automobile, the drive system comprising: a motor housing having a cooling water inlet port and a cooling water outlet port formed at an upper part thereof; a first cooling water fluid channel communicating with the cooling water inlet port and the cooling water outlet port, and disposed inside the motor housing; an inverter housing including a rear cover forming the rear surface to face the motor housing in the lengthwise direction; a heat exchange plate disposed inside the rear cover and forming a second cooling water fluid channel inside thereof; a cooling water inlet hole formed at an upper part of the rear cover to communicate with a portion of the first cooling water fluid channel extending from the cooling water inlet port in the axial direction of the motor housing, and allowing cooling water introduced through the cooling water inlet port to directly flow into the second cooling water fluid channel; and a cooling water outlet hole formed at an upper part of the rear cover to be spaced apart from the cooling water inlet hole in the circumferential direction, and allowing the cooling water having cooled the heat exchange plate while moving along the second cooling water fluid channel to flow out into the first cooling water fluid channel.
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公开(公告)号：US20210257878A1
公开(公告)日：2021-08-19
申请号：US17252576
申请日：2019-06-14
Applicant: LG Electronics Inc.
Inventor： Jongsu KIM , Taehee KWAK , Jungwook MOON , Changhum JO
Abstract: The present invention relates an electric motor comprising: a motor housing; a stator disposed inside the motor housing; and a rotor rotatably installed inside the stator, wherein the motor housing comprises: an outer housing including a first cooling fluid channel through which oil flows; an inner housing disposed inside the outer housing; and a plurality of injection holes formed in the inner housing to communicate with the first cooling fluid channel, so as to inject the oil to the inside of the inner housing, and the inner housing comprises: a plurality of fluid channel forming parts extending inside the inner housing along the circumferential direction thereof; a fluid channel guide extending along the lengthwise direction of the inner housing; and a common header disposed between the plurality of fluid channel forming parts and the fluid channel guide to distribute the cooling water to the second cooling fluid channel or to collect the cooling water from the second cooling fluid channel.
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