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：US11226150B2

公开(公告)日：2022-01-18

申请号：US15502790

申请日：2016-08-01

Applicant: LG ELECTRONICS INC.

Inventor： Yonggap Park ,  Kwangsoo Jung ,  Woocheol Kang ,  Geunhyung Lee

IPC: F25D21/12 ,  F25B47/02 ,  F28D15/02 ,  F25D21/08 ,  F25B39/02 ,  F25D19/00 ,  F28F1/32 ,  F28F1/28 ,  F28D1/047 ,  F28D21/00

Abstract: The present invention discloses a defrosting device, including: a heating unit provided at a lower portion of the evaporator; and a heat pipe connected to an inlet and an outlet of the heating unit, respectively, and having at least part thereof disposed adjacent to a cooling pipe of the evaporator such that the cooling pipe of the evaporator is heated by a working fluid of high temperature which is transferred in a heated state by the heating unit, wherein the heating unit includes: a heater case extending in one direction to be arranged in a left and right direction of the evaporator, and having the inlet and the outlet at both sides thereof; and a heater provided with an active heating part accommodated within the heater case and actively generating heat to heat the working fluid, and a passive heating part extending from the active heating part and heated up to temperature lower than temperature of the active heating part, and wherein the inlet is formed at a position away from the active heating part to prevent the working fluid returned after flowing along the heat pipe from being introduced directly into the active heating part.