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公开(公告)号：US20210028663A1
公开(公告)日：2021-01-28
申请号：US16815704
申请日：2020-03-11
Applicant: LG Electronics Inc.
Inventor： Jin Hong , Yongdae Kim , Kwangyong Jang
Abstract: Various embodiments relate to a stator having an improved structure of an insulator coupled to teeth and to a motor having the stator. The stator includes an insulator. The insulator includes: a coil-wound portion surrounding an outer circumferential face of a tooth; and both side walls respectively extending from both sides of the coil-wound portion, wherein the both side walls and the coil-wound portion defines a space receiving the coil, wherein one of the both side walls includes a coupling portion, wherein the insulator are divided into two parts and the two parts are coupled to each other via the coupling portion such that the tooth is inserted into and coupled to the insulator.
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公开(公告)号：US12088165B2
公开(公告)日：2024-09-10
申请号：US18152415
申请日：2023-01-10
Applicant: LG Electronics Inc.
Inventor： Jin Hong , Cheol Han , Kwangyong Jang
CPC classification number: H02K3/38 , H02K3/522 , A47L5/28 , A47L9/22 , H02K2203/06
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：US10811919B2
公开(公告)日：2020-10-20
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：US11996732B2
公开(公告)日：2024-05-28
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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Patent Agency Ranking
公开(公告)号：US10186915B2
公开(公告)日：2019-01-22
申请号：US15004152
申请日：2016-01-22
Applicant: LG ELECTRONICS INC.
Inventor： Kwangyong Jang , Sangchul Lee , Kyunghoon Lee , Changhum Jo
Abstract: A Blushless Direct Current (BLDC) motor may include a motor housing; a stator including a stator core installed within the motor housing and a coil wound in the stator core and that generates a magnetic field by applied power; and a rotor disposed within the stator and in which a magnet that interacts with the magnetic field is installed and that rotates within the stator by an interaction with the magnetic field. The stator core may include a back yoke in which straight portions and curved portions are alternately formed; and teeth protruded from the back yoke toward the magnet. The tooth include a neck protruded from the back yoke, and a shoe protruded from the neck and separated from the magnet and that encloses at least a portion of the magnet. A ratio A/B of a width A of the neck to a width B of a shoe end portion is 2.5 to 3.5. By optimizing a ratio A/B of a width A of the neck to a width B of the shoe end portion constituting the stator core, efficiency of a BLDC motor may be maximized.
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公开(公告)号：US11309762B2
公开(公告)日：2022-04-19
申请号：US16815704
申请日：2020-03-11
Applicant: LG Electronics Inc.
Inventor： Jin Hong , Yongdae Kim , Kwangyong Jang
Abstract: Various embodiments relate to a stator having an improved structure of an insulator coupled to teeth and to a motor having the stator. The stator includes an insulator. The insulator includes: a coil-wound portion surrounding an outer circumferential face of a tooth; and both side walls respectively extending from both sides of the coil-wound portion, wherein the both side walls and the coil-wound portion defines a space receiving the coil, wherein one of the both side walls includes a coupling portion, wherein the insulator are divided into two parts and the two parts are coupled to each other via the coupling portion such that the tooth is inserted into and coupled to the insulator.
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公开(公告)号：US12149120B2
公开(公告)日：2024-11-19
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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公开(公告)号：US11867197B2
公开(公告)日：2024-01-09
申请号：US17165456
申请日：2021-02-02
Applicant: LG Electronics Inc.
Inventor： Jin Hong , Kwangyong Jang , Yongdae Kim , Sunggi Kim
IPC: F04D25/08 , F04D29/52 , F04D25/06 , F04D29/056 , F04D29/54 , H02K3/52 , H02K5/20 , H02K7/08 , H02K9/06 , H02K5/16
CPC classification number: F04D29/522 , F04D25/06 , F04D25/0693 , F04D25/08 , F04D29/056 , F04D29/542 , H02K3/522 , H02K5/161 , H02K5/207 , H02K7/083 , H02K9/06 , H02K2203/06 , H02K2203/15
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：US11563349B2
公开(公告)日：2023-01-24
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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