公开(公告)号：US20220154998A1

公开(公告)日：2022-05-19

申请号：US17527675

申请日：2021-11-16

Applicant: LG Electronics Inc.

Inventor： Haemin PARK

IPC: F25D21/12 ,  F25B13/00 ,  F25B39/02

Abstract: An evaporator unit includes an evaporator comprising an evaporation pipe and a plurality of heat exchange fins, through which the evaporation pipe penetrates, and a defrost heater mounted below the evaporator. The defrost heater may include a heating line and a heating pipe in which the heating line is accommodated, and the heating pipe may have a plurality of irregularities extending in a longitudinal direction of the heating pipe.

公开(公告)号：US11313596B2

公开(公告)日：2022-04-26

申请号：US16332443

申请日：2017-08-07

Applicant: LG ELECTRONICS INC.

Inventor： Minjae Jeong ,  Seungyoun Kim ,  Geunhyung Lee ,  Hyunwoo Cho

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

Abstract: Disclosed is an evaporator, comprising: a heating tube left as an empty space between first and second case sheets, which form an evaporator case, so as not to be overlapped with a cooling tube, and forming a heating passage in which a working liquid for defrosting flows; and a heater attached to the outer surface, which corresponds to the heating tube, of the evaporator case so as to heat the working liquid inside the heating tube. The heating tube can have a structure which an inlet and an outlet are respectively formed at both sides of a heater attachment part in the longitudinal direction and both end portions of a passage part are respectively connected to the inlet and the outlet, or can have a structure in which an opening is formed at one side of the heater attachment part, the working liquid heated by the heater is discharged through the opening, and the cooled working liquid is returned. The structures can form the heating passage, enabling the working liquid to circulate therethrough, without forming the inlet and the outlet, which are respectively connected to both end portions of the passage part, to be parallel at one side of the heater attachment 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：US20210278112A1

公开(公告)日：2021-09-09

申请号：US16332443

申请日：2017-08-07

Applicant: LG ELECTRONIC INC.

Inventor： Minjae JEONG ,  Seungyoun KIM ,  Geunhyung LEE ,  Hyunwoo CHO

IPC: F25B39/00 ,  F25D21/08 ,  F25D21/12

Abstract: Disclosed is an evaporator, comprising: a heating tube left as an empty space between first and second case sheets, which form an evaporator case, so as not to be overlapped with a cooling tube, and forming a heating passage in which a working liquid for defrosting flows; and a heater attached to the outer surface, which corresponds to the heating tube, of the evaporator case so as to heat the working liquid inside the heating tube. The heating tube can have a structure which an inlet and an outlet are respectively formed at both sides of a heater attachment part in the longitudinal direction and both end portions of a passage respectively connected to the inlet and the outlet, or can have a structure in which an opening is formed at one side of the heater attachment part, the working liquid heated by the heater is discharged through the opening, and the cooled working liquid is returned. The structures can form the heating passage, enabling the working liquid to circulate therethrough, without forming the inlet and the outlet, which are respectively connected to both end portions of the passage part, to be parallel at one side of the heater attachment part.

公开(公告)号：US20210239385A1

公开(公告)日：2021-08-05

申请号：US17164930

申请日：2021-02-02

Applicant: PETER M. OSGARD

Inventor： PETER M. OSGARD

IPC: F25D21/12 ,  F25D23/02 ,  F25D21/08

Abstract: A door assembly for a refrigeration door system with a defrosting feature. The door assembly also includes a door frame. The door frame may include a top member having a first end and a second end opposite the first end, and the top member may have a top conduit therein. The door frame may also include a first side member coupled transversely to the first end of the top member and having a first conduit therein, the first conduit being fluidly coupled to the top conduit, and a second side member coupled transversely to the second end of the top member and having a second conduit. The second conduit may be fluidly coupled to the top conduit. The door frame may further have orifices positioned along the top member, the first side member, and the second side member. The door assembly also includes a positive pressure source.

公开(公告)号：US20210239384A1

公开(公告)日：2021-08-05

申请号：US17168354

申请日：2021-02-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Junwoo SUH

IPC: F25D21/12 ,  F25D21/14 ,  F25D21/00 ,  F28D15/02

Abstract: A refrigerator includes a storage space, an evaporator configured to cool air in the storage space based on heat exchange of a refrigerant, and a defroster configured to remove frost formed on the evaporator. The defroster incudes a pipe extended around the evaporator and including a circulation channel through which working fluid circulates, a fluid storage including a first opening and a second opening respectively communicating with opposite end portions of the pipe and configured to store the working fluid, and a pumping part disposed at a selected position on the circulation channel of the pipe between the evaporator and the fluid storage and configured to vaporize the working fluid to circulate the vaporized working fluid in the circulation channel.

公开(公告)号：US10921046B2

公开(公告)日：2021-02-16

申请号：US16139172

申请日：2018-09-24

Applicant: Haier US Appliance Solutions, Inc.

Inventor： Robert T. Mills ,  Joshua Duane Longenecker ,  Alan George Constance

IPC: F25D21/00 ,  F25D21/12

Abstract: A method for defrosting an evaporator of a sealed system includes determining that a defrost cycle is needed to remove frost from the evaporator and initiating such a defrost cycle. The method further includes determining that the defrost cycle failed to defrost the evaporator and repeating the defrost cycle until the defrost cycle is successful or until a predetermined number of defrost cycles have been performed. After a predetermined number of successive failed defrost cycles, the method includes preventing further operation of the sealed system, e.g., by locking out compressor, until the frost and/or ice build-up is removed.

公开(公告)号：US20200248939A1

公开(公告)日：2020-08-06

申请号：US16731460

申请日：2019-12-31

Applicant: Evapco, Inc.

Inventor： Kurt Liebendorfer ,  Gregory S. Derosier ,  Trevor Hegg

IPC: F25B43/00 ,  F25D23/00 ,  F25D13/00 ,  F25B41/00 ,  F25B33/00 ,  F25D21/12 ,  F25B1/00

Abstract: A packaged, pumped liquid, recirculating refrigeration system with charges of 10 lbs or less of refrigerant per ton of refrigeration capacity. The compressor and related components are situated in a pre-packaged modular machine room, and in which the condenser is mounted on the machine room and the evaporator is close coupled to the pre-packaged modular machine room. Prior art large receiver vessels may be replaced with a single or dual phase cyclonic separator also housed in the pre-packaged modular machine room.

公开(公告)号：US10718562B2

公开(公告)日：2020-07-21

申请号：US15946137

申请日：2018-04-05

Applicant: LG ELECTRONICS INC.

Inventor： Soyoon Kim ,  Kyunghun Cha ,  Kyungseok Kim

IPC: F25D21/12 ,  F25B39/00 ,  F25D17/06 ,  F25B13/00 ,  F25D21/00 ,  F25D21/02 ,  F25D17/08 ,  F25B39/02

Abstract: A refrigerator a duct arranged to partition an inner space of a storage chamber body into a storage chamber and an air flow channel, wherein the duct has an ejection hole defined therein; a roll-bond evaporator disposed in the air flow channel, wherein the roll-bond evaporator has a top and a bottom, a left end and a right end; a blowing fan configured to draw air from the storage chamber to blow the air into the air flow channel; and a defrost sensor closer to one of the top and bottom than the other of the top and the bottom, wherein said one is closer to the blowing fan than the other, wherein the sensor is closer to one of the left end and the right end than the other of the left end and the right end.

公开(公告)号：US20200003480A1

公开(公告)日：2020-01-02

申请号：US16444445

申请日：2019-06-18

Applicant: Standex International Corporation

Inventor： Teddy Glenn Bostic, JR. ,  Gregory Joseph Deutschmann ,  Chang H. Luh ,  Laura Steiner

IPC: F25D21/12 ,  F25D21/00

Abstract: Automatic defrost technology for refrigeration equipment, in particular, defrosting refrigeration equipment by acceleration defrosting sublimation effects in refrigeration chambers in continual operation below the freezing point of water. Useful for refrigeration equipment for storage of vaccines and other products having storage temperatures ranging from −58 degrees Fahrenheit and 5 degrees Fahrenheit.