Patents by Inventor Woocheol Kang

Woocheol Kang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11955475
    Abstract: A resistor including a device isolation layer is described that includes a first active region and a second active region, a buried insulating layer, and an N well region. The N well region surrounds the first active region, the second active region, the device isolation layer and the buried insulating layer. A first doped region and a second doped region are disposed on the first active region and the second active region. The first doped region and the second doped region are in contact with the N well region and include n type impurities.
    Type: Grant
    Filed: December 30, 2022
    Date of Patent: April 9, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woocheol Shin, Myunggil Kang, Minyi Kim, Sanghoon Lee
  • Publication number: 20230399790
    Abstract: The present disclosure relates to a laundry treating apparatus including a cabinet, a drum for accommodating laundry therein, a base disposed beneath the drum and providing a space where air in the drum circulates or moisture contained in the air is condensed, a motor for providing power to rotate the drum, and a heat exchanger assembly including a first heat exchanger, a second heat exchanger, and a compressor, wherein the base includes an air circulating channel through which air in the drum circulates, a compressor installation portion defined to be spaced apart from the air circulating channel and in which the compressor is seated, and a water collector spaced apart from the compressor installation portion and in communication with the air circulating channel to collect water condensed in the air circulating channel, wherein foreign substances are prevented from accumulating in the water collector.
    Type: Application
    Filed: October 5, 2021
    Publication date: December 14, 2023
    Inventors: Jongryul KIM, Jeongwoong KIM, Woocheol KANG, Gyudae LEE, Jinhyouk SHIN, Youngsoo KIM
  • Patent number: 11525619
    Abstract: A defrosting apparatus comprises a heater case comprising a heat pipe seating part formed to extend from one surface thereof in a recessed shape and a heater receiving part formed to extend to be parallel with the heat pipe seating part. The defrosting apparatus also includes a heater which is mounted in the heater receiving part so as to emit heat when power is applied thereto, a heat pipe which has a flow path through which a working fluid filled therein flows, which has a part seated on the heat pipe seating part, and which is 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 which is heated by the heater and then is transferred, and a holder which is detachably coupled to the heater case so as to cover the heat pipe seated on the heat pipe seating part.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: December 13, 2022
    Assignee: LG Electronics Inc.
    Inventors: Woocheol Kang, Jeahyuk Wie, Geunhyung Lee, Minjae Jeong
  • Patent number: 11428455
    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.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: August 30, 2022
    Assignee: LG Electronics Inc.
    Inventors: Minjae Jeong, Woocheol Kang, Geunhyung Lee, Eonhwa Hwang
  • Patent number: 11408663
    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.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: August 9, 2022
    Assignee: LG Electronics Inc.
    Inventors: Hyunwoo Cho, Woocheol Kang, Geunhyung Lee, Gwinan Hwang
  • Patent number: 11226150
    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
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: January 18, 2022
    Assignee: LG Electronics Inc.
    Inventors: Yonggap Park, Kwangsoo Jung, Woocheol Kang, Geunhyung Lee
  • Patent number: 11149995
    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.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: October 19, 2021
    Assignee: LG Electronics Inc.
    Inventors: Kwangsoo Jung, Woocheol Kang, Geunhyung Lee, Gwinan Hwang
  • Patent number: 11098944
    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.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: August 24, 2021
    Assignee: LG Electronics Inc.
    Inventors: Youngjae Shin, Woocheol Kang, Geunhyung Lee, Gwinan Hwang
  • Patent number: 11079148
    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.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: August 3, 2021
    Assignee: LG Electronics Inc.
    Inventors: Geunhyung Lee, Jongryul Kim, Kwangsoo Jung, Woocheol Kang, Jongmin Lee, Hyunwoo Cho
  • Publication number: 20210172671
    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.
    Type: Application
    Filed: December 21, 2017
    Publication date: June 10, 2021
    Inventors: Minjae JEONG, Woocheol KANG, Geunhyung LEE, Eonhwa HWANG
  • Patent number: 10871320
    Abstract: The present invention discloses a defroster comprising: a heating unit having a heater case arranged vertically along an up-down direction on the outside of an evaporator, and a heater disposed vertically in the up-down direction inside the heater case; and a heat pipe respectively connected to an outlet provided at the top side of the heating unit and an inlet provided at the bottom side of the heating unit, and having at least a portion thereof disposed adjacent to the refrigerant pipe of the evaporator so that working fluid heated by the heater moves and transfers heat to the evaporator to remove frost, wherein the heater is configured to be immersed beneath the surface of the working fluid when all the working fluid in the heat pipe is in a liquid state.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: December 22, 2020
    Assignee: LG Electronics Inc.
    Inventors: Woocheol Kang, Kwangsoo Jung, Yonggap Park, Geunhyung Lee
  • Patent number: 10677507
    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.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: June 9, 2020
    Assignee: LG Electronics Inc.
    Inventors: Jeongwoong Kim, Woocheol Kang, Geunhyung Lee, Gwinan Hwang
  • Publication number: 20200080763
    Abstract: A defrosting apparatus comprises a heater case comprising a heat pipe seating part formed to extend from one surface thereof in a recessed shape and a heater receiving part formed to extend to be parallel with the heat pipe seating part. The defrosting apparatus also includes a heater which is mounted in the heater receiving part so as to emit heat when power is applied thereto, a heat pipe which has a flow path through which a working fluid filled therein flows, which has a part seated on the heat pipe seating part, and which is 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 which is heated by the heater and then is transferred, and a holder which is detachably coupled to the heater case so as to cover the heat pipe seated on the heat pipe seating part.
    Type: Application
    Filed: October 11, 2017
    Publication date: March 12, 2020
    Inventors: Woocheol KANG, Jeahyuk WIE, Geunhyung LEE, Minjae JEONG
  • Patent number: 10520240
    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.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: December 31, 2019
    Assignee: LG Electronics Inc.
    Inventors: Kwangsoo Jung, Woocheol Kang, Yonggap Park, Geunhyung Lee, Jongmin Lee, Hyunwoo Cho
  • Publication number: 20190368796
    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.
    Type: Application
    Filed: August 19, 2019
    Publication date: December 5, 2019
    Inventors: Geunhyung LEE, Jongryul KIM, Kwangsoo JUNG, Woocheol KANG, Jongmin LEE, Hyunwoo CHO
  • Patent number: 10408525
    Abstract: The present disclosure discloses a defrosting device, including a heating unit provided at a lower side of an evaporator, and configured to heat working fluid therein; and a plurality of heat pipes, both end portions of which are connected to an inlet and an outlet of the heating unit, respectively, and at least part of which are disposed adjacent to a cooling tube of the evaporator to emit heat to the cooling tube due to high temperature working fluid heated and transferred by the heating unit, wherein the plurality of heat pipes are configured with a first heat pipe and a second heat pipe disposed to form two rows on a front portion and a rear portion of the evaporator, respectively, and the first heat pipe and the second heat pipe are formed in different lengths.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: September 10, 2019
    Assignee: LG Electronics Inc.
    Inventors: Youngjae Shin, Kwangsoo Jung, Woocheol Kang, Geunhyung Lee
  • Patent number: 10386102
    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.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: August 20, 2019
    Assignee: LG Electronics Inc.
    Inventors: Geunhyung Lee, Jongryul Kim, Kwangsoo Jung, Woocheol Kang, Jongmin Lee, Hyunwoo Cho
  • Patent number: 10329708
    Abstract: Provided is a dryer for clothes. The dryer for the clothes includes a cabinet, a drying drum accommodated in the cabinet, a suction passage supplying hot air into the drying drum, a heating unit disposed on one position of the suction passage to heat the air introduced into the suction passage at a high temperature, an exhaust passage through the hot air discharged from the drying drum flows, a blower mounted on one position of the exhaust passage to forcibly blow the air within the drying drum, a lint filter mounted on the other position of the exhaust passage, a guide duct defining a portion of the exhaust passage to accommodate the lint filter therein, and a blocking member disposed at a position where the air discharged from the drying drum flows.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: June 25, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jinhyouk Shin, Woocheol Kang, Minseong Kim, Sungjun Kim
  • Publication number: 20190107318
    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.
    Type: Application
    Filed: March 2, 2017
    Publication date: April 11, 2019
    Inventors: Youngjae SHIN, Woocheol KANG, Geunhyung LEE, Gwinan HWANG
  • Publication number: 20190063818
    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.
    Type: Application
    Filed: March 2, 2017
    Publication date: February 28, 2019
    Inventors: Hyunwoo CHO, Woocheol KANG, Geunhyung LEE, Gwinan HWANG