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公开(公告)号：EP3890164A1
公开(公告)日：2021-10-06
申请号：EP20212653.8
申请日：2020-12-09
Applicant: LG Electronics, Inc.
Inventor： SUNG, Wonjung , KIM, Jaemin , PARK, Gyeongjae , LEE, Jeongmin
Abstract: A motor according to an embodiment of the present disclosure is provided with a housing in which a stator core is press-fitted therein.
Refrigerant supply grooves to distribute and spray refrigerant are formed in an inner circumferential surface of the housing.
Therefore, refrigerant can be smoothly supplied, without having to increase a size of the motor or add a separate component.-
Patent Agency Ranking
公开(公告)号：EP3883097A1
公开(公告)日：2021-09-22
申请号：EP20206949.8
申请日：2020-11-11
Applicant: LG Electronics Inc.
Inventor： SHIN, Hojun , SUNG, Wonjung , PARK, Gyeongjae , LEE, Jeongmin
Abstract: Disclosed herein are a stator and a method for manufacturing the same. The stator according to embodiments of the present disclosure includes an insulating part and a plurality of stator coils each having two ends electrically connected to form one joint portion. The insulating part is configured to cover at least respective parts of the joint portions, and to provide a distance between neighboring joint portions. Accordingly, a partial discharge caused by a surge between the joint portions of the stator coils may be prevented, allowing operational reliability of the stator to be increased.
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公开(公告)号：EP3916964A1
公开(公告)日：2021-12-01
申请号：EP20912742.2
申请日：2020-07-24
Applicant: LG Electronics Inc.
Inventor： SUNG, Wonjung , PARK, Gyeongjae , SEOL, Hyunsoo , KIM, Seokhwan
Abstract: The stator of the rotating electric machine according to an embodiment of the present invention, the stator comprising: a stator coil formed by electrically connecting a plurality of hairpins in a preset pattern. Each of the plurality of hairpins includes a conductor and an insulating coating film covering the conductor. Each of the plurality of hairpins comprises: a first protruding part having a first stripped portion formed on one side by removing the insulating coating film and a second protruding part protruding from the stator core, and connected to the first stripped portion. A second stripped portion is formed on the second protruding part. An electrically-connected part is formed by electrically coupling the first stripped portion and the second stripped portion. The electrically-connected part is provided in plurality spaced apart from one another along a circumferential direction of the stator core, and wherein among portions of two electrically-connected parts adjacent to each other in the circumferential direction of the plurality of electrically-connected parts, portions located at the same distance from the one side surface of the stator core have shortest distances therebetween, which are set to have difference values included in a preset range value.
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公开(公告)号：EP3672035A1
公开(公告)日：2020-06-24
申请号：EP19213879.0
申请日：2019-12-05
Applicant: LG Electronics Inc.
Inventor： KIM, Kyeonghwan , SUNG, Wonjung , PARK, Gyeongjae , SHIN, Hojun , AHN, Junho , LEE, Yangsoo , KIM, Jongsu
Abstract: A motor includes a rotor assembly including a rotating shaft extending in one direction, a rotor core coupled to the rotating shaft and having a plurality of holes penetrated in one direction, a first end ring coupled to one end of the rotor core and guiding oil supplied to the rotor assembly to the plurality of holes, and a second end ring coupled to the other end of the rotor core and guiding oil passing through the plurality of holes in a radial direction. Accordingly, oil may flow into the rotor to improve a cooling effect of the rotor assembly by the oil.
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公开(公告)号：EP3678283A1
公开(公告)日：2020-07-08
申请号：EP19189555.6
申请日：2019-08-01
Applicant: LG ELECTRONICS INC.
Inventor： SHIN, Hojun , KIM, Kyeonghwan , PARK, Gyeongjae , SUNG, Wonjung , LEE, Yangsoo , PARK, Junghyun , AHN, Junho
Abstract: The present disclosure relates to a stator for an electric rotating machine, and the stator may include a stator core having teeth and slots; and a stator coil formed by connecting a plurality of hairpins to be inserted into the slots in a predetermined pattern, wherein each of the plurality of hairpins includes a conductor and a coating layer formed to surround an outer surface of the conductor, and the stator coil includues a first hairpin placed in a preset first section from an end to which power is to be input and a second hairpin placed in a second section after the first section, and the first hairpin has better insulation performance than the second hairpin. Thus, insulation performance may be ensured to suppress occurrence of partial discharge.
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6.发明公开
公开(公告)号：EP3678282A1
公开(公告)日：2020-07-08
申请号：EP19183807.7
申请日：2019-07-02
Applicant: LG ELECTRONICS INC.
Inventor： SUNG, Wonjung , LEE, Yangsoo , SHIN, Hojun , KIM, Kyeonghwan , PARK, Gyeongjae , AHN, Junho
Abstract: Provided are a stator of an electric rotating machine, a hairpin of a stator of an electric rotating machine, and a manufacturing method thereof. The stator for the electric rotating machine includes a stator core; and a stator coil having a plurality of hairpins, wherein each of the hairpins has a conductor and a film surrounding the conductor, each of the hairpins has a pair of insertion parts to be inserted into different slots and a connection part for connecting the insertion parts, the connection part has a first bending part and a second bending part bent with a predetermined radius of curvature so that the pair of insertion parts are insertable into different layers, and the hairpins have a first hairpin and a second hairpin protruding from one end of the stator core by different protrusion lengths, the first hairpin and the second hairpin having one regions disposed to cross each other. As a result, it is possible to improve insulation performance of an inter-phase crossing region of the stator coil.
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