公开(公告)号：US20210317836A1

公开(公告)日：2021-10-14

申请号：US17355516

申请日：2021-06-23

Applicant: LG Electronics Inc.

Inventor： Jeong Ho LEE ,  Seong-Jae KIM ,  Seung Jo BAEK ,  Young Gyu JUNG ,  Hak Kyu CHOI ,  Seong-Ho CHO

IPC: F04D25/08 ,  F04D29/40 ,  F04D29/58 ,  A47L5/22 ,  F04D29/44 ,  F04D29/62 ,  A47L9/22

Abstract: A fan motor for a vacuum cleaner includes a motor mount defining a cooling flow path inlet, an impeller, an impeller cover defining an air inlet, an air discharge opening defined at the motor mount and configured to discharge air to an outer space of the motor mount, and a cooling flow path outlet defined vertically above the motor mount. The cooling flow path inlet is configured to introduce air from the outer space of the motor mount into an inner space of the motor mount to cool the motor part, and the cooling flow path outlet is configured to discharge air from the inner space of the motor mount toward a space that is defined between the impeller and the air discharge opening based on the space between the impeller and the air discharge opening having a lower pressure than the inner space of the motor mount.

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：US20230287892A1

公开(公告)日：2023-09-14

申请号：US18198670

申请日：2023-05-17

Applicant: LG ELECTRONICS INC.

Inventor： Jeong Ho LEE ,  Seong-Jae KIM ,  Seung Jo BAEK ,  Young Gyu JUNG ,  Hak Kyu CHOI ,  Seong-Ho CHO

IPC: F04D25/08 ,  F04D29/40 ,  F04D29/58 ,  A47L5/22 ,  F04D29/44 ,  F04D29/62 ,  A47L9/22

CPC classification number: F04D25/082 ,  F04D29/403 ,  F04D29/5806 ,  A47L5/22 ,  F04D29/444 ,  F04D29/624 ,  A47L9/22 ,  F04D29/26

Abstract: A fan motor for a vacuum cleaner includes a motor mount defining a cooling flow path inlet, an impeller, an impeller cover defining an air inlet, an air discharge opening defined at the motor mount and configured to discharge air to an outer space of the motor mount, and a cooling flow path outlet defined vertically above the motor mount. The cooling flow path inlet is configured to introduce air from the outer space of the motor mount into an inner space of the motor mount to cool the motor part, and the cooling flow path outlet is configured to discharge air from the inner space of the motor mount toward a space that is defined between the impeller and the air discharge opening based on the space between the impeller and the air discharge opening having a lower pressure than the inner space of the motor mount.

公开(公告)号：US20180266426A1

公开(公告)日：2018-09-20

申请号：US15923575

申请日：2018-03-16

Applicant: LG Electronics Inc.

Inventor： Jeong Ho LEE ,  Seong-Jae KIM ,  Seung Jo BAEK ,  Young Gyu JUNG ,  Hak Kyu CHOI ,  Seong-Ho CHO

IPC: F04D25/08 ,  F04D29/58 ,  F04D29/40

CPC classification number: F04D25/082 ,  A47L5/22 ,  A47L9/22 ,  F04D29/26 ,  F04D29/403 ,  F04D29/444 ,  F04D29/5806 ,  F04D29/624

Abstract: A fan motor for a vacuum cleaner includes a motor mount defining a cooling flow path inlet, an impeller, an impeller cover defining an air inlet, an air discharge opening defined at the motor mount and configured to discharge air to an outer space of the motor mount, and a cooling flow path outlet defined vertically above the motor mount. The cooling flow path inlet is configured to introduce air from the outer space of the motor mount into an inner space of the motor mount to cool the motor part, and the cooling flow path outlet is configured to discharge air from the inner space of the motor mount toward a space that is defined between the impeller and the air discharge opening based on the space between the impeller and the air discharge opening having a lower pressure than the inner space of the motor mount.