公开(公告)号：US20230270226A1

公开(公告)日：2023-08-31

申请号：US18016222

申请日：2021-01-27

Applicant: LG ELECTRONICS INC.

Inventor： Cheol HAN ,  Giyeob YANG

IPC: A45D20/12 ,  H02K5/173 ,  H02K5/24 ,  H02K7/08 ,  H02K11/33 ,  H02K21/16

CPC classification number: A45D20/12 ,  H02K5/1732 ,  H02K5/24 ,  H02K7/083 ,  H02K11/33 ,  H02K21/16 ,  H02K2211/03

Abstract: The present invention relates to a motor assembly and a hair dryer having same. The motor assembly of the present invention comprises: an impeller; an outer housing and an inner housing arranged concentrically; a stator accommodated inside the inner housing; a rotor disposed inside the stator; a bearing supporting a rotary shaft of the rotor; a bracket having a bearing accommodating part in which the bearing is accommodated, and a plurality of bridges which are spaced apart from the outer surface of the bearing accommodating part in a circumferential direction thereof and protrude in an axial direction thereof so as to be coupled to the inner housing; and a vortex suppressing part blocking empty spaces between the plurality of bridges so that generation of air vortices can be suppressed. Thereby, it is possible to suppress vortex generation in a downstream region of the impeller, and flow loss caused by the vortex generation can be reduced.

公开(公告)号：US20250125685A1

公开(公告)日：2025-04-17

申请号：US18672437

申请日：2024-05-23

Applicant: LG ELECTRONICS INC.

Inventor： Sunho KIM ,  Taekyung KIM ,  Giyeob YANG ,  Jounyoung KIM ,  Seongho CHO

IPC: H02K9/06 ,  H02K5/173 ,  H02K7/08 ,  H02K21/16

Abstract: A fan motor may include a motor housing that guides a flow of air generated by an impeller. The motor housing may include an outer wall, and an inner wall disposed inside of the outer wall and spaced apart from the outer wall. The motor housing may include at least one vane that extends between the outer wall and the inner wall to guide the flow of air. The motor housing may further include at least one vane extension portion that extends from a downstream end of the at least one vane to cover at least a portion of a thickness surface of the inner wall. With this structure, the at least one vane extension portion may improve a cooling performance of the motor while minimizing flow loss due to a vortex generated while some of the air flowing along a flow path flows to a motor accommodating portion.

公开(公告)号：US20230383765A1

公开(公告)日：2023-11-30

申请号：US18232974

申请日：2023-08-11

Applicant: LG Electronics Inc.

Inventor： Joongkeun CHOI ,  Giyeob YANG ,  Jeong Ho LEE ,  Seong-Ho CHO

IPC: F04D29/58 ,  F04D29/32 ,  F04D17/16 ,  A47L9/22

CPC classification number: F04D29/584 ,  F04D29/325 ,  F04D17/168 ,  A47L9/22

Abstract: A fan motor includes a motor mount, a motor part accommodated in an inner space of the motor mount, and an impeller disposed above the motor mount. The motor mount defines: an air discharge opening configured to discharge air discharged from the impeller to an outer space of the motor mount; a cooling flow path outlet disposed at the upper side of the motor mount at a position between the impeller and the air discharge opening; and a first cooling flow path inlet disposed at a position below the air discharge opening and the cooling flow path outlet. The fan motor further includes a guide that is configured to direct, to an upward direction, at least a portion of air that is discharged through the air discharge opening and introduced to the inner space through the first cooling flow path inlet.

公开(公告)号：US20230180906A1

公开(公告)日：2023-06-15

申请号：US17924485

申请日：2021-03-11

Applicant: LG ELECTRONICS INC.

Inventor： Giyeob YANG ,  Seongho CHO

IPC: A45D20/12 ,  F04D29/38 ,  F04D29/54

CPC classification number: A45D20/12 ,  F04D29/38 ,  F04D29/54

Abstract: The present disclosure relates to a hairdryer and, more specifically, to a hairdryer wherein a ratio between dimensions of fan unit components is appropriately changed to stabilize the flow of air introduced into a fan unit and suppress occurrence of turbulence so that internal flow efficiency can be increased and the noise can be decreased.

公开(公告)号：US20210010487A1

公开(公告)日：2021-01-14

申请号：US16836264

申请日：2020-03-31

Applicant: LG Electronics Inc.

Inventor： Giyeob YANG ,  Jeongho LEE ,  Joongkeun CHOI ,  Seongho CHO

IPC: F04D29/66 ,  F04D25/06

Abstract: Disclosed is a fan motor. The present disclosure provides a fan motor including a motor housing receiving a motor therein, an impeller coupled to a shaft of the motor, and a diffuser disposed between the motor and the impeller and having an axial flow vane and a diagonal flow vane.

公开(公告)号：US20230291250A1

公开(公告)日：2023-09-14

申请号：US18016205

申请日：2020-12-15

Applicant: LG ELECTRONICS INC.

Inventor： Giyeob YANG ,  Cheol HAN

IPC: H02K1/20 ,  H02K7/08 ,  H02K9/06 ,  A45D20/12

CPC classification number: H02K1/20 ,  H02K7/083 ,  H02K9/06 ,  A45D20/12

Abstract: Disclosed is a fan motor and a hair dryer comprising same, the fan motor having heat-dissipating holes for discharging heat from inside the fan motor. Heat-dissipating channels are provided in the space between the inner circumferential surface of a stator assembly and two adjacent teeth, and a plurality of heat-dissipating holes penetrate the top of a vane hub, wherein the heat-dissipating holes overlap unidirectionally with any one of the heat-dissipating channels.

公开(公告)号：US20230268796A1

公开(公告)日：2023-08-24

申请号：US18018104

申请日：2021-04-01

Applicant: LG ELECTRONICS INC.

Inventor： Cheol HAN ,  Yongdae KIM ,  Giyeob YANG

IPC: H02K5/20 ,  H02K5/173 ,  H02K5/22 ,  H02K7/08 ,  H02K9/06

CPC classification number: H02K5/207 ,  H02K5/1732 ,  H02K5/225 ,  H02K7/083 ,  H02K9/06

Abstract: The present invention relates to a fan motor comprising: a housing; a vane hub received in the housing; an insulator mounted inside the vane hub to insulate a stator comprising a stator core and a stator coil wound on the stator core; and a lower bracket coupled to the insulator, wherein a plurality of power line lead-out holes are formed in the lower bracket so as to allow a power line extending from the stator coil to pass therethrough, and a plurality of air holes are formed in the circumferential direction between the respective power line lead-out holes so as to allow air to be suctioned toward the stator. Accordingly, a flow channel of air to for cooling a stator can be formed inside a stator slot, and thus cooling of the stator can be facilitated.

公开(公告)号：US20210010486A1

公开(公告)日：2021-01-14

申请号：US16836195

申请日：2020-03-31

Applicant: LG Electronics Inc.

Inventor： Joongkeun CHOI ,  Jeongho LEE ,  Giyeob YANG ,  Seongho CHO

IPC: F04D29/44 ,  F04D17/16 ,  F04D25/06

Abstract: Disclosed is a fan motor. The present disclosure provides a fan motor including a motor housing receiving a motor therein, a motor bracket disposed on the motor housing, an impeller coupled to a shaft of the motor, and a diffuser disposed between the motor and the impeller and having a vane body, an axial flow vane provided to an inner circumference of the vane body, and a diagonal flow vane provided above the axial flow vane.