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公开(公告)号：US20210340996A1
公开(公告)日：2021-11-04
申请号：US17165456
申请日：2021-02-02
Applicant: LG Electronics Inc.
Inventor： Jin HONG , Kwangyong JANG , Yongdae KIM , Sunggi KIM
IPC: F04D29/52 , F04D25/06 , F04D29/056 , F04D29/54 , H02K3/52 , H02K5/16 , H02K5/20 , H02K7/08 , H02K9/06
Abstract: A fan motor includes: a motor including a stator and a rotor, a motor housing accommodating the motor, a bearing case disposed at a lower portion of the motor housing, an impeller coupled to a rotary shaft of the motor, a vane structure disposed at a lower side of the impeller and configured to guide air, and a lead cable connector provided in the bearing case. The stator of the motor includes a core and a coil that is wound on the core, and the lead cable connector is connected to a lead cable of the coil of the stator.
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公开(公告)号：US20240106296A1
公开(公告)日：2024-03-28
申请号：US18276841
申请日：2022-01-11
Applicant: LG Electronics Inc.
Inventor： Jin HONG , Kwangyong JANG , Yongdae KIM
CPC classification number: H02K3/522 , H02K9/06 , H02K2203/09
Abstract: The present invention relates to a motor assembly comprising: a stator comprising a stator core having a plurality of teeth, a stator coil having a plurality of phase coils wound on the plurality of teeth, respectively, and an insulator interposed between the stator core and the stator coil for insulation of the stator coil; and a rotor which has a rotation shaft and is spaced apart from the stator with a space therebetween and is rotatably disposed, wherein each power line of the plurality of phase coils extends to one end of the stator core along the axial direction and each neutral line of the plurality of phase coils extends to the other end of the stator core, and the stator includes a connection ring which is formed of an electrical conductor and is disposed at the other end of the stator core to simultaneously connect the neutral lines of the plurality of phase coils. As a result, the power line and the neutral line of the stator coil are separately disposed at both ends of the stator core, and accordingly, the insulation distance between the power line and the neutral wire can be easily secured.
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公开(公告)号：US20230163653A1
公开(公告)日：2023-05-25
申请号：US18152415
申请日：2023-01-10
Applicant: LG Electronics Inc.
Inventor： Jin HONG , Cheol HAN , Kwangyong JANG
Abstract: Various embodiments relate to a motor in which a structure of an insulator is improved. The motor includes an insulator module coupled to a top face of a stator core. The insulator module includes: each power terminal unit connected to each of 3-phases power lead wires; a neutral terminal unit connected to a neutral point of a coil; and an insulator body for achieving insulations between the power and neutral terminal units and the stator core, and between the power and neutral terminal units, wherein the power terminal unit and the neutral terminal unit are positioned at different vertical levels.
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公开(公告)号：US20220360122A1
公开(公告)日：2022-11-10
申请号：US17640650
申请日：2020-07-24
Applicant: LG Electronics Inc.
Inventor： Kwangyong JANG , Yongdae KIM , Jin HONG
Abstract: The present disclosure relates to a stator which prevents motor efficiency from deteriorating while increasing divided contact areas of divided teeth. According to the present disclosure, provided is a stator characterized by comprising a back yoke having a certain thickness in the radial direction, and divided teeth coupled to the back yoke, wherein: the back yoke includes recessed grooves into which the divided teeth fit; the divided teeth include a winding portion forming a section on which a coil is wound and a coupling portion extending from the winding portion and fitting into the grooves; and the length of the back yoke in the radial direction at the coupling portion is greater than half the thickness of the back yoke.
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Patent Agency Ranking
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：US20230208214A1
公开(公告)日：2023-06-29
申请号：US17926836
申请日：2021-01-27
Applicant: LG Electronics Inc.
Inventor： Kwangyong JANG , Yongdae KIM , Jin HONG
CPC classification number: H02K1/148 , H02K7/145 , H02K15/022 , H02K15/10
Abstract: The present invention relates to an electric motor, a cleaner having same and an electric motor manufacturing method. The electric motor of the present invention comprises: a stator; and a rotor which is rotatable with respect to the stator. The stator has: a stator core; and a stator coil which is wound around the stator core. The stator core has: a yoke which is segmented in the circumferential direction of the stator; an assembly connector which is coupled between two yokes which are continuously disposed along the circumferential direction of the stator; and teeth which protrude along the radial direction of the stator from the inner surface of the assembly connector. Accordingly, deformation of the yoke and the teeth, respectively, may be suppressed.
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公开(公告)号：US20230188006A1
公开(公告)日：2023-06-15
申请号：US17924919
申请日：2021-02-24
Applicant: LG Electronics Inc.
Inventor： Kwangyong JANG , Jin HONG , Yongdae KIM
CPC classification number: H02K9/227 , H02K3/522 , H02K5/207 , H02K9/06 , H02K2203/06 , H02K2203/12
Abstract: The present invention relates to a stator and a fan motor comprising same, the stator comprising: a stator core including a back yoke and a plurality of teeth that extend to protrude in the radius direction from the inner surface of the back yoke toward the center of the back yoke; a plurality of stator coils respectively wound around the plurality of teeth; and a plurality of teeth insulators for insulating the plurality of teeth from the plurality of stator coils, wherein each of the plurality of teeth insulators comprises: an insulator body for encompassing the teeth; and a plurality of heat-dissipating fins formed to protrude from the side surface of the insulator body so as to expand a contact area with the stator coil, and thus discharge heat of the stator coil, thereby maximizing cooling of coils through convection and conduction.
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公开(公告)号：US20220149674A1
公开(公告)日：2022-05-12
申请号：US17432556
申请日：2019-03-27
Applicant: LG Electronics Inc.
Inventor： Kwangyong JANG , Yongdae KIM , Cheol HAN
Abstract: A stator core of a fan motor comprises: a back yoke body; and a plurality of teeth which are spaced apart from each other inside the back yoke body, wherein each of the plurality of teeth comprises: a neck coupled to the back yoke body; and a shoe protruding from the neck and facing the outer circumference of a rotor, and each of a plurality of insulators of the fan motor comprises: a neck insulator surrounding the neck; a first barrier protruding from the neck insulator in an axial direction; and a pair of second barriers protruding from the neck insulator towards the inner circumference of the back yoke body.
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公开(公告)号：US20210021169A1
公开(公告)日：2021-01-21
申请号：US16794794
申请日：2020-02-19
Applicant: LG Electronics Inc.
Inventor： Jin HONG , Cheol HAN , Kwangyong JANG
Abstract: Various embodiments relate to a motor in which a structure of an insulator is improved. The motor includes an insulator module coupled to a top face of a stator core. The insulator module includes: each power terminal unit connected to each of 3-phases power lead wires; a neutral terminal unit connected to a neutral point of a coil; and an insulator body for achieving insulations between the power and neutral terminal units and the stator core, and between the power and neutral terminal units, wherein the power terminal unit and the neutral terminal unit are positioned at different vertical levels.
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