EP2743616A2 - Réfrigérateur comportant une prévention de rosée et/ou dispositif de commande et procédé pour empêcher la formation de rosée dans celui-ci et/ou sur celui-ci - Google Patents

Réfrigérateur comportant une prévention de rosée et/ou dispositif de commande et procédé pour empêcher la formation de rosée dans celui-ci et/ou sur celui-ci Download PDF

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Publication number
EP2743616A2
EP2743616A2 EP13194076.9A EP13194076A EP2743616A2 EP 2743616 A2 EP2743616 A2 EP 2743616A2 EP 13194076 A EP13194076 A EP 13194076A EP 2743616 A2 EP2743616 A2 EP 2743616A2
Authority
EP
European Patent Office
Prior art keywords
refrigerator
humidity
rotational speed
fan
dew
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13194076.9A
Other languages
German (de)
English (en)
Other versions
EP2743616A3 (fr
Inventor
Won Joo Kwon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WiniaDaewoo Co Ltd
Original Assignee
Dongbu Daewoo Electronics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongbu Daewoo Electronics Corp filed Critical Dongbu Daewoo Electronics Corp
Publication of EP2743616A2 publication Critical patent/EP2743616A2/fr
Publication of EP2743616A3 publication Critical patent/EP2743616A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/11—Fan speed control
    • F25B2600/111—Fan speed control of condenser fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/02—Humidity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer

Definitions

  • the present invention relates to a refrigerator, and more particularly, to a refrigerator having a dew prevention and/or control device and a method for preventing formation of dew in and/or on the refrigerator, wherein a hot pipe on the door gasket(s) or a cover plate of a refrigerator body can be maintained at an appropriate and/or predetermined temperature, thereby efficiently preventing the formation of dew around the door gaskets or the cover plate of the refrigerator body.
  • a refrigerator is a household appliance adapted to maintain the inside of a cold storage space and/or a freezer at low temperatures by repeating a refrigeration cycle, in which a refrigerant is compressed, condensed, expanded and evaporated, thereby keeping the food stored therein fresh for a given period of time.
  • the refrigerator is provided with a compressor 20 adapted to compress a refrigerant, a condenser 30 adapted to condense the refrigerant from the compressor 20 through the outside air (e.g., the air surrounding the refrigerator), and an evaporator 40 adapted to absorb the heat within the interior of the refrigerator by evaporating the refrigerant that passes through the condenser 30 at a low pressure.
  • a compressor 20 adapted to compress a refrigerant
  • a condenser 30 adapted to condense the refrigerant from the compressor 20 through the outside air (e.g., the air surrounding the refrigerator)
  • an evaporator 40 adapted to absorb the heat within the interior of the refrigerator by evaporating the refrigerant that passes through the condenser 30 at a low pressure.
  • the temperature of the condenser 30 decreases by use of a fan 50 to improve the efficiency of the refrigeration cycle.
  • a hot pipe 70 extends from the condenser 30 to prevent the formation of dew.
  • the present invention has been made in view of the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a refrigerator having a dew prevention and/or control device and a method for preventing the formation of dew in and/or on the refrigerator, wherein a rotational speed (e.g., revolutions per minute or RPM) of a fan is controlled in accordance with the humidity around the refrigerator to appropriately maintain the temperature of a hot pipe, thereby efficiently preventing the formation of dew on the door gaskets or the cover plate that partitions a cold storage space and a freezer.
  • a rotational speed e.g., revolutions per minute or RPM
  • a refrigerator for preventing formation of dew in a refrigerator body includes a compressor adapted to compress a refrigerant in a tube; a condenser adapted to condense the refrigerant from the compressor (e.g., using air surrounding the refrigerator); an evaporator adapted to cool air existing therearound by evaporating the refrigerant that passes through the condenser; a fan adapted to blow the refrigerant towards the condenser; a pipe between the condenser and the evaporator that passes through the refrigerator body; outside humidity sensors and/or detectors adapted to determine the outside humidity or a humidity that is around the refrigerator body; and a controller adapted to vary a rotational speed (e.g., revolutions per minute or RPM) of the fan in accordance with the outside humidity (e.g., determined by the outside humidity sensors and/or detectors), thus controlling a temperature of the pipe.
  • a rotational speed e.g., revolutions per minute or RPM
  • the refrigerator further includes outside temperature sensors and/or detectors adapted to determine the temperature around the refrigerator body, allowing the rotational speed of the fan to be controlled in accordance with the temperature around the refrigerator body.
  • a method for preventing formation of dew in and/or on a refrigerator includes determining an outside humidity around a refrigerator body; and varying the rotational speed (e.g., RPM) of a fan in accordance with the outside humidity conditions, and controlling the temperature of a pipe (e.g., in the refrigerator body).
  • RPM rotational speed
  • the rotational speed of the fan decreases, resulting in an increase in the temperature of the pipe.
  • the method may further include determining the outside temperature around the refrigerator body to control the rotational speed of the fan in accordance with the outside humidity and/or conditions and the outside temperature and/or conditions.
  • FIG. 1 is a schematic view showing a refrigeration cycle of a conventional refrigerator.
  • FIG. 2 is a block diagram showing an exemplary dew prevention and/or control device in a refrigerator according to embodiment(s) of the present invention.
  • FIG. 3 is a flow chart showing an exemplary method for controlling and/or preventing a formation of dew in and/or on a refrigerator body according to embodiment(s) of the present invention.
  • FIG. 4 is a graph showing pipe temperatures with respect to the humidity around the refrigerator body according to embodiment(s) of the present invention.
  • an exemplary refrigerator has a refrigeration cycle conducted by a compressor 20 adapted to compress a refrigerant, the condenser 30 adapted to condense the refrigerant from the compressor 20 using outside air (e.g., the air surrounding the refrigerator), and the evaporator 40 adapted to cool air existing therearound (e.g., surrounding the refrigerator) by evaporating the refrigerant that passes through the condenser 30.
  • a compressor 20 adapted to compress a refrigerant
  • the condenser 30 adapted to condense the refrigerant from the compressor 20 using outside air (e.g., the air surrounding the refrigerator)
  • the evaporator 40 adapted to cool air existing therearound (e.g., surrounding the refrigerator) by evaporating the refrigerant that passes through the condenser 30.
  • a fan 50 is configured to blow the refrigerant towards the condenser 30 to decrease the temperature of the refrigerant passing through the condenser 30, and a pipe 70 (e.g., a hot pipe) is adapted to generate heat around a refrigerator body 10, thus preventing formation of dew in and/or on the refrigerator body 10.
  • the pipe 70 runs under a cover plate 60 and/or under the outer surface of the exterior of the refrigerator, below or near the location(s) of the gasket(s) on the outer surface of the refrigerator.
  • a dew prevention and/or control device in the refrigerator may include a controller 80 adapted to control operations of the refrigerator and outside humidity sensors and/or detectors 90.
  • the humidity sensors and/or detectors are adapted to determine the humidity in the conditions around the refrigerator body 10.
  • outside humidity sensors and/or detectors 90 serve to measure the humidity in the air around the refrigerator body 10.
  • the outside humidity sensors and/or detectors 90 are located around the doors and the cover plate, where the formation of dew readily occurs.
  • the controller 80 determines the interior conditions and the air conditions outside the refrigerator, and each load condition is executed by an appropriate program operation.
  • the temperature around the refrigerator body 10 is sensed, detected, or determined by the outside temperature sensors and/or detectors (not shown).
  • the humidity around the refrigerator body 10 is sensed or determined by the outside humidity sensors and/or detectors 90.
  • the outside temperature and the outside humidity are inputted to the controller 80 by the outside temperature sensors and the outside humidity sensors 90.
  • the outside temperature sensors are mounted, installed, and or used, accordingly. For example, if the refrigerator is in an environment where the outside air is maintained at a relatively constant temperature, only the outside humidity sensors 90 may be used.
  • the controller 80 controls the fan 50 in accordance with at least the outside humidity conditions inputted thereto.
  • the rotational speed of the fan 50 with respect to the humidity around the refrigerator body 10 is inversely proportional to the temperature of the pipe 70.
  • the rotational speed of the fan 50 is decreased, thereby increasing the temperature of the pipe 70.
  • the rotational speed of the fan 50 is set to 100% of the potential and/or maximum rotational speed at a rated load using the controller 80.
  • the output of the fan 50 is maintained at a maximum degree, speed or rate. Even if the temperature of the pipe 70 decreases from or at the maximum rotational speed of the fan 50, the formation of dew will not be influenced or affected.
  • the rotational speed of the fan 50 may be set to 80% of the rotational speed at the rated load using the controller 80. If the outside humidity is detected in the range between 70% and 80%, the rotational speed of the fan 50 may be set to 60% of the rotational speed at the rated load using the controller 80. Furthermore, if the outside humidity is detected in the range between 80% and 90%, the rotational speed of the fan 50 may be set to 40% of the maximum rotational speed at the rated load using the controller 80, and if the outside humidity is detected in the range between 90% and 100%, the rotational speed of the fan 50 may be set to 20% of the maximum rotational speed at the rated load using the controller 80.
  • the rotational speed of the fan 50 is decreased in accordance with the detected humidity conditions, thereby advantageously raising the temperature of the pipe 70.
  • control logic may be made in accordance with other various humidity conditions.
  • the rotational speed of the fan 50 is controlled by the humidity conditions around the refrigerator body 10 and the surrounding temperature conditions.
  • the refrigerator having a dew prevention and/or control device and the method for preventing the formation of dew in and/or on the refrigerator are configured to set the rotational speed of the fan to an optimum rotational speed in accordance with the humidity conditions and the temperature conditions around the refrigerator body 10 to maintain the temperature of the pipe 70 at a temperature effective to prevent formation of dew on the refrigerator (e.g., near the gaskets) thereby efficiently preventing formation of dew on the door gaskets or the cover plate of the refrigerator body.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP13194076.9A 2012-12-11 2013-11-22 Réfrigérateur comportant une prévention de rosée et/ou dispositif de commande et procédé pour empêcher la formation de rosée dans celui-ci et/ou sur celui-ci Withdrawn EP2743616A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120143501A KR20140075292A (ko) 2012-12-11 2012-12-11 이슬맺힘방지용 제어장치를 포함하는 냉장고 및 이슬맺힘방지용 제어방법

Publications (2)

Publication Number Publication Date
EP2743616A2 true EP2743616A2 (fr) 2014-06-18
EP2743616A3 EP2743616A3 (fr) 2016-12-07

Family

ID=49683474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13194076.9A Withdrawn EP2743616A3 (fr) 2012-12-11 2013-11-22 Réfrigérateur comportant une prévention de rosée et/ou dispositif de commande et procédé pour empêcher la formation de rosée dans celui-ci et/ou sur celui-ci

Country Status (4)

Country Link
US (1) US20140157805A1 (fr)
EP (1) EP2743616A3 (fr)
KR (1) KR20140075292A (fr)
CN (1) CN103868303A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4160122A1 (fr) * 2021-10-04 2023-04-05 Whirlpool Corporation Procédé de commande de condensation sur un appareil de réfrigération et réfrigérateur associé

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KR20160001389A (ko) * 2014-06-27 2016-01-06 삼성전자주식회사 냉장고 및 그 제어 방법
KR101677649B1 (ko) * 2014-12-23 2016-11-18 엘지전자 주식회사 냉장고
CN106766578B (zh) * 2016-12-23 2019-07-02 青岛海尔股份有限公司 冷藏冷冻设备的防凝露方法与装置
CN107246757B (zh) * 2017-07-31 2023-06-16 长虹美菱股份有限公司 一种具有防凝露结构的冰箱及防凝露控制方法
CN108019998B (zh) * 2017-12-11 2020-04-21 合肥华凌股份有限公司 改善接水盘化霜水蒸发能力的控制方法、控制器及冰箱
CN109084518A (zh) * 2018-07-27 2018-12-25 青岛海尔股份有限公司 一种冰箱除露装置及其除露方法
CN109060019B (zh) * 2018-08-01 2021-03-02 广东天元实业集团股份有限公司 智能冷链监测仪
CN111059860B (zh) * 2019-12-05 2022-02-15 海信（山东）冰箱有限公司 一种冰箱及其智能运行控制的方法
CN112283139B (zh) * 2020-10-23 2022-04-19 长虹美菱股份有限公司 一种具有防凝露功能的冷凝风机转速控制方法

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4160122A1 (fr) * 2021-10-04 2023-04-05 Whirlpool Corporation Procédé de commande de condensation sur un appareil de réfrigération et réfrigérateur associé

Also Published As

Publication number Publication date
EP2743616A3 (fr) 2016-12-07
US20140157805A1 (en) 2014-06-12
CN103868303A (zh) 2014-06-18
KR20140075292A (ko) 2014-06-19

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