公开(公告)号：US11428455B2

公开(公告)日：2022-08-30

申请号：US16616817

申请日：2017-12-21

Applicant: LG Electronics Inc.

Inventor： Minjae Jeong ,  Woocheol Kang ,  Geunhyung Lee ,  Eonhwa Hwang

IPC: F25D21/08 ,  F25D21/00

Abstract: A defrosting apparatus includes: a heating unit including a heater case and a heater, where the heater case defines an inner flow path having an inlet and an outlet at ends thereof, and the heater is mounted in the heater case to heat a working fluid within the inner flow path; and a heat pipe inserted into the inside of the heater case through the inlet and the outlet, and which has at least a part thereof disposed to be adjacent to a cooling pipe of an evaporator such that heat is radiated to the cooling pipe of the evaporator by means of the working fluid at a high temperature that is heated by the heater and then is transferred, where the heater is configured to stop emit heat at a preset temperature or higher since an electric current is suppressed due to a sharp increase in resistance.

公开(公告)号：US11408663B2

公开(公告)日：2022-08-09

申请号：US16086724

申请日：2017-03-02

Applicant: LG Electronics Inc.

Inventor： Hyunwoo Cho ,  Woocheol Kang ,  Geunhyung Lee ,  Gwinan Hwang

IPC: F25C1/10 ,  F25C5/04 ,  F25D21/08 ,  F25B39/02 ,  F25D21/06 ,  F25B47/00 ,  F25B47/02 ,  H05B3/56 ,  F25D23/00

Abstract: An evaporator includes: an evaporator case that defines a food storage space therein; a cooling tube located at the evaporator case and filled with refrigerant; a foil heater attached to at least one surface of the evaporator case and configured to contact the evaporator case and to generate heat such that heat for defrosting is transferred to the evaporator case. A defrosting time is reduced in comparison to that of conventional natural defrosting, such that the freshness of food can be maintained, and the cooling efficiency, having been reduced by frost, is increased such that power consumption can be reduced. The foil heater is attached to a conventional roll-bond type evaporator case, and the present invention has an advantageous effect of facilitating the maintenance of the foil heater because of a structure in which the foil heater is attached to the evaporator case.

公开(公告)号：US10520240B2

公开(公告)日：2019-12-31

申请号：US15518502

申请日：2016-08-01

Applicant: LG ELECTRONICS INC.

Inventor： Kwangsoo Jung ,  Woocheol Kang ,  Yonggap Park ,  Geunhyung Lee ,  Jongmin Lee ,  Hyunwoo Cho

IPC: F25D21/08 ,  F28F1/40 ,  F25B39/02 ,  F25B47/02 ,  F28F1/12 ,  F28D15/02 ,  F28F19/00 ,  F25D21/12 ,  F28D7/00 ,  F25D21/04 ,  F28D1/047 ,  F28F1/24

Abstract: The present disclosure discloses a defrosting device, including a heating unit provided in an evaporator; and a heat pipe, both end portions of which are connected to an inlet and an outlet of the heating unit, respectively, and at least part of which is disposed adjacent to a cooling tube to dissipate heat to the cooling tube of the evaporator due to high-temperature working fluid heated and transferred by the heating unit, wherein the heating unit includes a heater case provided with a vacant space therein, and provided with the inlet and the outlet at positions separated from each other, respectively, along a length direction; and a heater attached to an outer surface of the heater case to heat working fluid within the heater case.

公开(公告)号：US09982384B2

公开(公告)日：2018-05-29

申请号：US14793991

申请日：2015-07-08

Applicant: LG ELECTRONICS INC.

Inventor： Jinhyouk Shin ,  Woocheol Kang ,  Minseong Kim ,  Sungjun Kim

IPC: D06F58/20 ,  F04D29/42 ,  F04D29/22 ,  F04D1/00 ,  F04D13/06 ,  D06F58/22 ,  F04D7/04 ,  F04D29/70 ,  D06F71/40 ,  D06F81/00 ,  F04D29/62

CPC classification number: D06F58/20 ,  D06F58/22 ,  D06F58/24 ,  D06F71/40 ,  D06F81/003 ,  F04D1/00 ,  F04D7/04 ,  F04D13/06 ,  F04D29/2216 ,  F04D29/426 ,  F04D29/4273 ,  F04D29/628 ,  F04D29/708

Abstract: A drain pump and a clothes dryer having a drain pump are provided. The drain pump may include a pump motor; an impeller including a hub, an impeller shaft that extends from a center of the hub and is connected to a rotational shaft of the pump motor, and at least one blade that extends from an outer circumferential surface of the impeller shaft; a housing including an impeller hole, through which the impeller may pass, and a space in which the pump motor may be accommodated; and a pump case coupled to a bottom surface of the housing. The pump case may have a suction hole to suction in cleaning water. The suction hole may be defined at a position corresponding to the impeller, and the pump case may include a shaft shield that extends from an edge of the suction hole in a central direction of the suction hole or toward a central portion of the suction hole to cover a lower end of the impeller shaft.

公开(公告)号：US09896797B2

公开(公告)日：2018-02-20

申请号：US15304340

申请日：2015-04-14

Applicant: LG ELECTRONICS INC.

Inventor： Jinhyouk Shin ,  Woocheol Kang ,  Minseong Kim ,  Sungjun Kim

IPC: D06F58/22 ,  D06F58/02

CPC classification number: D06F58/22 ,  D06F58/02

Abstract: Provided is a dryer for clothes. The dryer for the clothes includes a lint filter assembly, and a lint filter cleaning device for removing lint attached to the lint filter assembly. The lint filter assembly includes a filter frame defining an edge thereof, a mesh member attached to the filter frame to cover an inner region of the filter frame, and a partition rib including a plurality of horizontal ribs and vertical ribs which are disposed inside the filter frame. The mesh member is partitioned into a plurality of filtering blocks by the plurality of horizontal ribs and vertical ribs.

公开(公告)号：US11079148B2

公开(公告)日：2021-08-03

申请号：US16544667

申请日：2019-08-19

Applicant: LG Electronics Inc.

Inventor： Geunhyung Lee ,  Jongryul Kim ,  Kwangsoo Jung ,  Woocheol Kang ,  Jongmin Lee ,  Hyunwoo Cho

IPC: F25B47/02 ,  F25D21/08 ,  F28D15/02 ,  F25D21/12

Abstract: A defrosting device includes a heating unit filled with a working fluid and including an active heating part heated to a first temperature that can evaporate the working fluid, and a passive heating part positioned at a rear side of the active heating part and heated to a lower temperature than the first temperature. The defrosting device also includes a heat pipe disposed adjacent to an evaporator to transfer heat to the evaporator while circulating working fluid heated by the active heating part, the heat pipe including an entrance portion configured to receive working fluid evaporated by the active heating part, and a return portion connected adjacent to the passive heating part and configured to receive working fluid that has condensed after circulating through the heat pipe. Condensed working fluid received at the heating unit first passes through the passive heating part before being reheated at the active heating part.

公开(公告)号：US10677507B2

公开(公告)日：2020-06-09

申请号：US15557708

申请日：2016-08-01

Applicant: LG ELECTRONICS INC.

Inventor： Jeongwoong Kim ,  Woocheol Kang ,  Geunhyung Lee ,  Gwinan Hwang

IPC: F25D21/08 ,  F25B39/02 ,  H05B3/56 ,  F25B47/02 ,  F25D21/00 ,  F25D23/06 ,  F25D11/02

Abstract: The present disclosure relates to an evaporator, including an evaporator case formed in a box shape with both sides open in a manner of bending two case sheets coupled to each other, a cooling tube left as an empty space between the two case sheets to form a cooling passage for a flow of refrigerant, a heating tube left as an empty space between the two case sheets in a non-overlapping manner with the cooling tube, and a heating wire heater inserted into the heating tube to surround the evaporator case, and generating heat, in response to power supplied, such that heat for defrosting is transferred to the evaporator case.

公开(公告)号：US10386102B2

公开(公告)日：2019-08-20

申请号：US15312772

申请日：2015-10-21

Applicant: LG ELECTRONICS INC.

Inventor： Geunhyung Lee ,  Jongryul Kim ,  Kwangsoo Jung ,  Woocheol Kang ,  Jongmin Lee ,  Hyunwoo Cho

IPC: F25B47/02 ,  F25D21/08 ,  F28D15/02 ,  F25D21/12

Abstract: A defrosting device includes a heating unit filled with a working fluid and including an active heating part heated to a first temperature that can evaporate the working fluid, and a passive heating part positioned at a rear side of the active heating part and heated to a lower temperature than the first temperature. The defrosting device also includes a heat pipe disposed adjacent to an evaporator to transfer heat to the evaporator while circulating working fluid heated by the active heating part, the heat pipe including an entrance portion configured to receive working fluid evaporated by the active heating part, and a return portion connected adjacent to the passive heating part and configured to receive working fluid that has condensed after circulating through the heat pipe. Condensed working fluid received at the heating unit first passes through the passive heating part before being reheated at the active heating part.

公开(公告)号：US11149995B2

公开(公告)日：2021-10-19

申请号：US15555757

申请日：2016-08-01

Applicant: LG ELECTRONICS INC.

Inventor： Kwangsoo Jung ,  Woocheol Kang ,  Geunhyung Lee ,  Gwinan Hwang

IPC: F25B39/02 ,  F25B47/02 ,  F25D21/08 ,  F25D21/06 ,  F25D21/12 ,  F28F17/00

Abstract: Disclosed is an evaporator including a case formed in an empty box type and having a storage chamber therein; a cooling tube formed on the case in a preset pattern and filled with refrigerant for cooling therein; a heating tube formed on the case in a preset pattern so as not to be overlapped with the cooling tube and filled with working fluid for defrosting therein; and a heating unit fixed to an external surface of the case corresponding to the heating tube and configured to heat the working fluid within the heating tube.

公开(公告)号：US11098944B2

公开(公告)日：2021-08-24

申请号：US16086753

申请日：2017-03-02

Applicant: LG Electronics Inc.

Inventor： Youngjae Shin ,  Woocheol Kang ,  Geunhyung Lee ,  Gwinan Hwang

IPC: F25D21/08 ,  F25D19/00 ,  H05B3/48 ,  F25D21/06 ,  F25B39/02 ,  F25D13/04

Abstract: A refrigerator includes a cabinet that defines a freezing compartment and a refrigerating compartment, and an evaporator installed in the freezing compartment. The evaporator includes: an evaporator case that defines a food storage space formed therein; a cooling tube located at the evaporator case in a predetermined pattern and configured to receive a coolant; and a sheath heater disposed outside of the evaporator case to be adjacent to at least one surface of the evaporator case, the sheath heater being configured to generate heat such that heat for defrosting is transferred to the evaporator case. The sheath heater reduces the defrosting time to maintain the freshness of food, increases the cooling efficiency, and reduces power consumption. The defrosting efficiency by the sheath heater is improved by a reflection member, and an inflow of heat, generated when defrosting, into the refrigerating compartment is reduced by a heat insulation member.