EP0055005A2 - Kühlvorrichtung - Google Patents

Kühlvorrichtung Download PDF

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Publication number
EP0055005A2
EP0055005A2 EP81201388A EP81201388A EP0055005A2 EP 0055005 A2 EP0055005 A2 EP 0055005A2 EP 81201388 A EP81201388 A EP 81201388A EP 81201388 A EP81201388 A EP 81201388A EP 0055005 A2 EP0055005 A2 EP 0055005A2
Authority
EP
European Patent Office
Prior art keywords
condensor
air
cooling device
cooling
lamellae
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.)
Ceased
Application number
EP81201388A
Other languages
English (en)
French (fr)
Other versions
EP0055005A3 (de
Inventor
Antonius Cornelius Maria Van Gils
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.)
Ie Pe Ge BV
Original Assignee
Ie Pe Ge BV
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 Ie Pe Ge BV filed Critical Ie Pe Ge BV
Publication of EP0055005A2 publication Critical patent/EP0055005A2/de
Publication of EP0055005A3 publication Critical patent/EP0055005A3/de
Ceased 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
    • F25D21/002—Defroster control
    • F25D21/008—Defroster control by timer
    • 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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/027—Condenser control arrangements
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0028—Details for cooling refrigerating machinery characterised by the fans
    • F25D2323/00282—Details for cooling refrigerating machinery characterised by the fans the fans not of the axial type
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0028—Details for cooling refrigerating machinery characterised by the fans
    • F25D2323/00283—Details for cooling refrigerating machinery characterised by the fans the fans allowing rotation in reverse direction

Definitions

  • the invention relates to a cooling device for use in ale coolers, automatic beverage machines, air-conditioning apparatus or the like, said cooling device mainly comprising a series-connected evaporator, a compressor, a lamella condensor and an air displacing member for generating a cooling air stream along the condensor lamellae.
  • Such a cooling device is usually incorporated in bars or cabinets and the like and are, therefore, difficult of access for cleaning purposes. This is particularly troublesome in cleaning the lamellae of the condensor, which has to be done at regular intervals because the air stream carries along an amount of dust and/or dirt which settles on the lamellae of the condensor. Filthiness of the condensor brings about a decrease in refrigerating capacity of the condensor so that the compressor has to run longer for the required cooling effect and the energy consumption of the device increases. Moreover, with an increasing fouling the compressor pressure tends to increase to an extent such that the compressor motor coils may burn through.
  • the invention has for its object to obviate the aforesaid disadvantage by providing a cooling device which is distinguished by means for inverting the direction of flow of the cooling air along the condensor lamellae.
  • the air displacing member is constructed in the form of an axial blade rotor driven by a polarity commutating electric motor and the inverting means in the form of an electric switch controlled by a cycle generator.
  • the cycle generator provokes an inversion of the polarity circuit in the electric motor so that the latter starts rotating in the reverse direction and owing to the opposite direction of rotation the axial blade rotor blows the air back.
  • the air displacing member is formed by an axial blade rotor driven by a polarity commutating electric motor, in which the inverting means are formed by a switching mechanism for varying the position of the blades of the rotor.
  • the air displacing member is an axial or a radial rotor connected with a channel system that can be blocked by flaps and conducting to both sides of the condensor, said flaps being controlled by a time control.
  • the flaps are disposed so that either one channel or the other is opened so that either one side or the other of the condensor is linked to the rotor.
  • the refrigerator 1 shown only by way of example, comprises spaces 2 to the front for holding, for example, bottles.
  • the spaces are cooled on the top side by a cooling element or evaporator 3 of a conventional kind, in which a fluid is circulating by means of a compressor 4.
  • a condensor 5 In the fluid circuit is included in series a condensor 5, in which the heat withdrawn from the compartment 2 is transferred to the ambient air.
  • an air displacing apparatus 6 being provided to blow an air stream along the lamellae.
  • Fig. 2 schematically shows the arrangement, the same reference numerals being used for corresponding elements.
  • the invention now proposes to periodically invert the normal cooling air stream in the direction indicated by the arrow P1 (see the arrow P2) in order to blow back the dust or dirt particles back.
  • the air stream can be inverted in various ways, for example, by means of an electric switching system, which is described more fully with reference to figs.3 and 4.
  • the driving motor of the air displacing member formed by a blade rotor has to be com- mutatable in polarity for inverting the direction of rotation of the rotor in the electric motor.
  • a polarity commutating motor is designated by reference numeral 10 in figs. 3 and 4.
  • the change-over of polarity is performed by means of an electric switch 11, which is controlled by a cycle generator 12.
  • the cycle generator may be of a conventional type, for example, a switching roller or an electronic switching block.
  • the switching block has a definite time constant so that after a given period, for example, of six hours the switch 11 remains changed over for 15 minutes, the sense of rotation of the rotor in the elctric motor then being inverted as a result of which direction of flow of the air along the lamellae of the condensor 6 is also inverted.
  • the cooling device may be used, for example, in an ale cooler because no thawing cycle is required in this case. This is illustrated in the diagram of fig. 4.
  • Fig. 3 shows a circuit diagram in which the cycle generator 12 controls, in addition, a switch 13 of a compressor 14.
  • the cooling device may employed, for example, in the refrigerating system of fig. 1, in which a thawing cycle has to be periodically carried out in order to remove ice depositions on the evaporator.
  • the cycle generator can each time cut off the compressor and during this period the blower is automatically inverted for blowing the condensor lamellae clean.
  • Reference numeral 16 designates an electric blower motor which serves, for example, for transporting the cooled air in the compartment of the refrigerator or for driving a stirrer.
  • Fig. 3a shows a temperature-controlled motor of the compressor, in which the setting 30 tends to maintain a given temperature in the cooling space by the control means of the control-block 31.
  • the switch 33 of the compressor motor 14 is cut off by the solenoid 32 so that the cooling process stops.
  • the block 31 re-actuates the motor 14 through the solenoid 32.
  • the cycle generator 12 brings about the desired thawing and cleaning cycle respectively of the cooling space or the lamellae of the condensor respectively.
  • the latter process described is achieved by inverting the polarity commutating motor.10.
  • the motor is controlled, whilst the switch 35 puts the solenoid 32 out of operation so that the switch 33 is changed over and the compressor motor 14 is switched off.
  • This control illustrates that even in periods in which cooling is necessary for a long time and the compressor motor 14 is continuously running for a long time the thawing and cleaning processes are nevertheless ensured thanks to the cycle generator, which results in a decrease of the overall energy expenses.
  • Fig. 5 is a schematic view for a mechanical inversion of the air stream along the lamellae of the condensor 20, on both sides of which is connected a channel system.
  • the channel system conducts to a radial blade rotor 21, which can be rotated by an electric motor (not shown).
  • Each channel 22 and 23 is provided with a flap system 24 and 25 respectively, which can be turned over by a mechanical leverage 26 (see the solid and broken lines respectively in the figure).
  • the leverage 26 may be biassed by a tensile spring 27 and it can be shifted by a solenoid 28 acting against the tensile strength of the spring 27.
  • the solenoid can be energized by a time control, for example, the cycle generator 12 of figs. 3 and 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Motor Or Generator Cooling System (AREA)
EP81201388A 1980-12-24 1981-12-18 Kühlvorrichtung Ceased EP0055005A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8007035 1980-12-24
NL8007035A NL8007035A (nl) 1980-12-24 1980-12-24 Koelinrichting.

Publications (2)

Publication Number Publication Date
EP0055005A2 true EP0055005A2 (de) 1982-06-30
EP0055005A3 EP0055005A3 (de) 1983-06-08

Family

ID=19836371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81201388A Ceased EP0055005A3 (de) 1980-12-24 1981-12-18 Kühlvorrichtung

Country Status (2)

Country Link
EP (1) EP0055005A3 (de)
NL (1) NL8007035A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT380100B (de) * 1982-09-28 1986-04-10 Siemens Ag Oesterreich Waermepumpe
WO2008121488A3 (en) * 2007-03-29 2009-01-22 Coca Cola Co Systems and methods for flexible reversal of condenser fans in vending machines, appliances, and other store or dispense equipment
CN101897527B (zh) * 2008-09-29 2013-05-08 三洋电机株式会社 冷却系统
CN103250017A (zh) * 2010-12-09 2013-08-14 Bsh博世和西门子家用电器有限公司 具有被强制冷却的热交换器的制冷器具
CN112696852A (zh) * 2019-10-22 2021-04-23 海信（山东）冰箱有限公司 一种冰箱
CN112781180A (zh) * 2021-02-09 2021-05-11 珠海格力电器股份有限公司 换热装置、空调及换热装置的控制方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1967019A (en) * 1932-03-17 1934-07-17 Westinghouse Electric & Mfg Co Heat exchange apparatus
US2525462A (en) * 1949-12-03 1950-10-10 Gen Electric Motor reversing arrangement
GB791270A (en) * 1955-09-29 1958-02-26 Gen Motors Corp Improved refrigerator apparatus
DE1112094B (de) * 1959-10-19 1961-08-03 Georg Friedrich Schuster Verfahren zur Kuehlung des Kondensators von insbesondere Klein-Kaelteanlagen und Vorrichtung dafuer
US3070972A (en) * 1960-12-22 1963-01-01 Gen Electric Automatic controls for room air conditioning unit
US3102395A (en) * 1962-01-15 1963-09-03 Gen Motors Corp Refrigerating apparatus with condenser lint burner
US3255609A (en) * 1964-05-25 1966-06-14 Jet Spray Cooler Inc Beverage dispenser
US3500655A (en) * 1968-05-02 1970-03-17 Joe C Lyons Heat exchange apparatus
US3611742A (en) * 1970-07-20 1971-10-12 Howard E Douglass Automatically adjustable condenser cooling apparatus
US3717010A (en) * 1971-07-02 1973-02-20 Gen Electric Air conditioner
GB2033066A (en) * 1978-09-22 1980-05-14 Pye Ltd Refrigeration

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT380100B (de) * 1982-09-28 1986-04-10 Siemens Ag Oesterreich Waermepumpe
WO2008121488A3 (en) * 2007-03-29 2009-01-22 Coca Cola Co Systems and methods for flexible reversal of condenser fans in vending machines, appliances, and other store or dispense equipment
JP2010522865A (ja) * 2007-03-29 2010-07-08 ザ・コカ−コーラ・カンパニー 自動販売機、自動販売装置、及び他の保管機器又は分配機器内の柔軟な凝縮器ファン逆転システム及び方法
CN101668999B (zh) * 2007-03-29 2011-10-26 可口可乐公司 用于在自动售货机、器具和其他存储或配给设备中使冷凝器风扇灵活反转的系统和方法
CN101897527B (zh) * 2008-09-29 2013-05-08 三洋电机株式会社 冷却系统
CN103250017A (zh) * 2010-12-09 2013-08-14 Bsh博世和西门子家用电器有限公司 具有被强制冷却的热交换器的制冷器具
CN112696852A (zh) * 2019-10-22 2021-04-23 海信（山东）冰箱有限公司 一种冰箱
CN112696852B (zh) * 2019-10-22 2024-04-09 海信（山东）冰箱有限公司 一种冰箱
CN112781180A (zh) * 2021-02-09 2021-05-11 珠海格力电器股份有限公司 换热装置、空调及换热装置的控制方法
CN112781180B (zh) * 2021-02-09 2021-11-16 珠海格力电器股份有限公司 换热装置、空调及换热装置的控制方法

Also Published As

Publication number Publication date
NL8007035A (nl) 1982-07-16
EP0055005A3 (de) 1983-06-08

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Inventor name: VAN GILS, ANTONIUS CORNELIUS MARIA