公开(公告)号：US20230092864A1

公开(公告)日：2023-03-23

申请号：US17802310

申请日：2020-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Jinwook CHOI ,  Jeongtaek PARK ,  Seokho CHOI

IPC: F04D29/66 ,  F04D29/28 ,  F04D29/30

Abstract: A cross-flow fan, and blades of a cross-flow fan are provided. The cross-flow fan includes a rotary shaft; a plurality of blades that extends in a direction parallel to the rotary shaft and having a positive pressure surface and a negative pressure surface; and a connector that connects the rotary shaft and the plurality of blades. At least one protrusion that protrudes in a thickness direction and extends in a longitudinal direction of the plurality of blades is formed on the plurality of blades, and by means of the at least one protrusion formed on a blade surface, a flow separation phenomenon caused by friction with the blade surface is suppressed, thereby reducing noise generated by the cross-flow fan.

公开(公告)号：US20210379416A1

公开(公告)日：2021-12-09

申请号：US17230206

申请日：2021-04-14

Applicant: LG Electronics Inc.

Inventor： Taejun KIM ,  Jeongtaek PARK ,  Hojung KIM ,  Seokho CHOI ,  Keonwang LEE ,  Chiyoung CHOI

IPC: A62B18/00 ,  A62B18/02 ,  A62B23/02

Abstract: A mask apparatus includes: a mask body including an air duct disposed at a front surface of the mask body, a fan module disposed at the front surface of the mask body to correspond to a suction hole of the air duct, and configured to suction external air to supply the suctioned air to the air duct, and a mask body cover that is coupled to the front surface of the mask body and that covers the fan module and the air duct. An air passage through which air suctioned by the fan module flows is provided in the air duct, and an embossed portion is disposed on at least a portion of a surface of the air duct that is configured to be in contact with the air flowing through the air passage.

公开(公告)号：US20200063988A1

公开(公告)日：2020-02-27

申请号：US16547070

申请日：2019-08-21

Applicant: LG Electronics Inc.

Inventor： Seokho CHOI ,  Jeongtaek PARK ,  Taehun LEE ,  Jinwook CHOI

IPC: F24F1/38 ,  F24F1/0035 ,  F24F1/0059

Abstract: An air conditioner includes a housing that defines an air inlet and an air outlet, a heat exchanger, a blowing fan inside the housing, a lower guide configured to guide, toward the air outlet, air discharged to a rear side of the blowing fan and a lower side of the blowing fan, and an upper guide that is disposed vertically above the lower guide and that defines a discharge flow path with the lower guide. The discharge flow path extends from the blowing fan to the air outlet, and a cross sectional area of the discharge flow path increases toward the air outlet. The upper guide defines a curved surface that is disposed at a downstream end of the upper guide adjacent to the air outlet and that is convex toward the air outlet.

公开(公告)号：US20170122329A1

公开(公告)日：2017-05-04

申请号：US15338153

申请日：2016-10-28

Applicant: LG Electronics Inc.

Inventor： Sanghyuk SON ,  Jeongtaek PARK ,  Jieun CHOI ,  Kyoungho LEE

IPC: F04D25/08 ,  F04D29/70 ,  F04D29/44 ,  F04D29/42 ,  F04D17/16 ,  F04D29/28

CPC classification number: F04D25/08 ,  F04D17/16 ,  F04D29/281 ,  F04D29/4226 ,  F04D29/444 ,  F04D29/681 ,  F04D29/701 ,  F05D2240/121 ,  F05D2240/122 ,  F05D2240/124 ,  F05D2250/52 ,  F24F1/0025 ,  F24F6/16

Abstract: Provided is an air conditioner. The air conditioner includes: a blower fan blowing air; a blower motor rotating the blower fan; and a blower housing coupled with the blower motor and including a ring-shaped air blowing flow passage in which air discharged from the blower fan flows. Here, the blower housing includes a plurality of vanes that are disposed spaced from each other in a circumferential direction on the air blowing flow passage over the blower fan.