公开(公告)号：US11859639B2

公开(公告)日：2024-01-02

申请号：US17510793

申请日：2021-10-26

Applicant: LG Electronics Inc.

Inventor： Changlae Kim ,  Byungjik Kim ,  Sunggi Kim ,  Sanghyun Hong

IPC: F04D29/52 ,  F04D29/62 ,  F01D5/28 ,  F04D29/22 ,  F04D29/66 ,  F04D29/16

CPC classification number: F04D29/526 ,  F01D5/288 ,  F04D29/162 ,  F04D29/2222 ,  F04D29/622 ,  F04D29/666

Abstract: A fan motor according to an embodiment of the present invention may include: an impeller a hub connected to a rotary shaft and at least one blade formed on the outer surface of the hub; a shroud surrounding the outer circumference of the impeller; and a coating layer coated on the inner circumferential surface of the shroud. The coating layer may include: a polymer having strength lower than the strength of the blade; and a plurality of beads mixed with the polymer and having strength higher than the strength of the polymer.

公开(公告)号：US11187245B2

公开(公告)日：2021-11-30

申请号：US16540451

申请日：2019-08-14

Applicant: LG Electronics Inc.

Inventor： Changlae Kim ,  Byungjik Kim ,  Sunggi Kim ,  Sanghyun Hong

IPC: F04D29/42 ,  F04D29/52 ,  F01D5/28 ,  F04D29/22 ,  F04D29/66 ,  F01D11/12

Abstract: A fan motor according to an embodiment of the present invention may include: an impeller a hub connected to a rotary shaft and at least one blade formed on the outer surface of the hub; a shroud surrounding the outer circumference of the impeller; and a coating layer coated on the inner circumferential surface of the shroud. The coating layer may include: a polymer having strength lower than the strength of the blade; and a plurality of beads mixed with the polymer and having strength higher than the strength of the polymer.

公开(公告)号：US11420258B2

公开(公告)日：2022-08-23

申请号：US17050270

申请日：2019-05-10

Applicant: LG Electronics Inc.

Inventor： Sanghyun Hong ,  Jihyun Kim ,  Seojin Lee ,  Sangeun Shim ,  Jiyoung Jung ,  Sosan Hwang ,  Yooseok Kwon

IPC: B22F9/00 ,  B22F9/24 ,  C01G39/02 ,  C01G41/02 ,  B22F1/054 ,  B22F1/142

Abstract: The present invention provides a method for the manufacture of transition metal oxide fine particles, the method comprising the steps of: heating a strong-alkaline aqueous solution while stirring same; adding to and dissolving in the heated strong-alkaline aqueous solution a transition metal oxide; adding a strong-acid aqueous solution to the strong alkaline aqueous solution in which the transition metal oxide is dissolved, while stirring same, thereby re-dissolving a solid generated at the interface between the strong-alkaline aqueous solution and the strong-acid aqueous solution; adjusting the pH of the mixed aqueous solution resulting from mixing the strong-alkaline aqueous solution and the strong acid aqueous solution, through adjustment of the adding rate and amount of the strong-acid aqueous solution, to precipitate transition metal oxide fine particles; and separating the transition metal oxide fine particles from the mixed aqueous solution and sequentially washing, drying, and thermally treating the separated transition metal oxide fine particles.