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US20090314027A1 - Refrigerator - Google Patents

Refrigerator Download PDF

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Publication number
US20090314027A1
US20090314027A1 US12/310,418 US31041807A US2009314027A1 US 20090314027 A1 US20090314027 A1 US 20090314027A1 US 31041807 A US31041807 A US 31041807A US 2009314027 A1 US2009314027 A1 US 2009314027A1
Authority
US
United States
Prior art keywords
heat
refrigerating device
condenser
blower
compressor
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.)
Abandoned
Application number
US12/310,418
Other languages
English (en)
Inventor
Niels Liengaard
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Assigned to BSH BOSCH UND SIEMENS HAUSGERATE GMBH reassignment BSH BOSCH UND SIEMENS HAUSGERATE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LIENGAARD, NIELS
Publication of US20090314027A1 publication Critical patent/US20090314027A1/en
Abandoned 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
    • F25D23/00—General constructional features
    • F25D23/003—General constructional features for cooling refrigerating machinery
    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/046—Condensers with refrigerant heat exchange tubes positioned inside or around a vessel containing water or pcm to cool the refrigerant gas
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers

Definitions

  • the invention relates to a refrigerating device as claimed in the preamble to claim 1 .
  • a refrigeration circuit In order to cool the interior of a refrigerating device, a refrigeration circuit is usually provided in which a refrigerant circulates.
  • the refrigeration circuit incorporates, on the outside of the refrigerating device, a condenser via which the heat absorbed inside the refrigerating device by the refrigerant is rejected to the ambient air.
  • the condenser In order to be able to ensure the necessary heat exchange, the condenser must have a particular size which, especially in the case of built-in appliances, is at the expense of the size of the cooled interior.
  • the condenser must basically be designed such that the amount of heat that is produced during the operating time of the compressor can also be removed during the operating time of the compressor. During the idle times of the compressor, virtually no heat is produced. Consequently, at these times no heat transfer from the condenser to the ambient air is necessary either.
  • the condenser must therefore be designed such that the amount of heat to be removed is rejected to the ambient air only at the times when the compressor is running.
  • the object of the invention is to design a condenser such that its size can be reduced, thereby enabling the available space to be better utilized by enlarging the cooled interior.
  • a refrigerating device having the features set forth in claim 1 .
  • the heat storage mass it is achieved that, during operation of the compressor, more heat can be extracted from the refrigerant than is dissipated to the ambient air by the condenser. This heat is temporarily stored in the heat storage mass. At the times when the compressor is not operating and normally no heat is being released to the ambient air by the condenser either, the heat previously absorbed by the heat storage mass is now released again. This means that heat is released by the condenser over a much longer period.
  • the condenser can therefore be of smaller design and the available space better used.
  • a device which, in particular, makes the radiating surface larger.
  • a wide metal tape is placed in meander-shaped loops and the resulting loop assembly is connected to the heat store. The nature of the connection must be such that good heat transfer between the heat storage mass and the metal tape is guaranteed.
  • a blower can be additionally provided. Said blower should be disposed so as to boost the flow of air through the cavities of the loop assembly. This means that a large surface of the metal tape is swept by the air passed through and a large amount of heat is removed.
  • the running time of the blower is not limited to the running time of the compressor.
  • the blower only needs to be turned off when the heat storage mass falls below a particular temperature and the compressor has not yet become active again. Should this threshold temperature of the heat storage mass not be attained, the blower is operated continuously.
  • the blower must not only dissipate the heat during the running time of the compressor, but also use the idle times of the compressor for heat dissipation, the blower need not have a very high output. A blower having the output required here does not produce a high sound intensity, nor does it therefore have a disturbing effect.
  • the heat storage mass has a liquid-filled container.
  • a liquid-filled container is inexpensive to produce and shape so that it optimally utilizes the available space.
  • the liquid is accommodated in a plastic bag.
  • shape of the plastic bag critical, as the liquid-filled plastic bag complies very well to the shape of the container.
  • a liquid with high heat storage capacity should be used which, however, must not incur high costs. Water meets these requirements and is therefore best suited for this purpose.
  • FIG. 1 schematically illustrates the refrigeration circuit of a refrigerating device
  • FIG. 2 a shows an exploded view of the condenser of a refrigerating device according to the invention
  • FIG. 2 b shows the condenser from FIG. 2 a in the assembled state.
  • FIG. 1 schematically illustrates the refrigeration cycle of a refrigerating device.
  • the refrigeration circuit comprises a compressor 1 and a condenser 9 , which are located outside a cooled interior 6 of a refrigerating device, a throttling device 3 located at the edge of the cooled interior 6 , and an evaporator 4 with a thermostat 5 which are located inside the cooled interior 6 .
  • Condensers which dissipate the heat of a gaseous refrigerant ( 7 ) to the ambient air and in doing so condense the refrigerant, generally consist of serpentine coils of pipework.
  • the refrigeration cycle takes place in a refrigerant-filled closed circuit.
  • the gaseous refrigerant 7 is compressed and heated up by the compression process.
  • the condenser 9 heat is removed from the gaseous refrigerant 7 and rejected to the ambient air, the refrigerant being condensed in the process.
  • the throttling device 3 upstream of the evaporator 4 ensures that a higher pressure obtains in the supplying than in the removing refrigeration circuit. This causes the liquid refrigerant 2 to be decompressed at the throttling device 3 and its aggregate state to change from liquid to gaseous, abruptly cooling it.
  • the evaporator 4 therefore removes heat from the interior 6 and in doing so heats up the refrigerant 7 .
  • the gaseous refrigerant 7 passes to the compressor 1 and the cycle begins again.
  • the amount of heat removed by the evaporator 4 is determined by the thermostat 5 which controls the on- and off-times of the compressor 1 .
  • FIG. 2 a shows a new condenser with its serpentine coils 9 which are fixed to the outside of a container 8 , a plastic bag 11 filled with a heat storage medium 10 , a cooler 12 with cooling loops 13 and cavities 14 , and a blower 15 with its nozzle 16 .
  • the container 8 shown as a rectangular box in this figure, can be adapted to suit the mounting requirements inside the refrigerating device and therefore varied in respect of its shape.
  • the serpentine condenser coils 9 run along the outside of the container 8 to which they are fixedly connected. The connection provides good heat transfer between the serpentine condenser coils 9 and the container 8 . Likewise, the materials used for the container 8 and the serpentine condenser coils 9 have good thermal conductivity. The refrigerant is condensed in the serpentine condenser coils 9 .
  • the plastic bag 11 filled with the liquid heat storage medium 10 is inserted in the container 8 .
  • the distinctive feature of this solution is that, because a plastic bag 11 is used, the container 8 is not required to be leak-proof.
  • the hermetically sealed plastic bag 11 filled with the heat storage medium 10 is capable of assuming virtually any internal shape of the container 8 and of making large-area contact with the inside of the container 8 .
  • cooler 12 Located on the top of the container 8 is the cooler 12 with its cooling loops 13 .
  • the cooler 12 is fixedly connected to the container 8 (see FIG. 2 b ) and again consists of a material having good thermal conductivity.
  • the type of cooler 12 shown here is a wide metal tape bent in a meander-shaped manner such that the individual cooler loops 13 are in contact with one another. Other designs are also possible, whether it be honeycomb or finned types.
  • the nozzle 16 is located on the pressure side of the blower 15 , is flanged onto one of the end faces of the cooler 12 and covers the end face of the cooler 12 with its outlet surface.
  • the blower 15 is preferably implemented as a radial or tangential blower in order, on the one hand, to minimize noise emission and, on the other, to produce an air flow that is as uniform as possible across the cooler 12 .
  • the design of said blower in itself is sufficient to eliminate a “dead spot” of the kind that can only be avoided with significant complexity when using axial blowers.
  • the air flow is directed through cavities 14 formed by the cooler loops 13 and removes a large amount of heat.
  • the gaseous refrigerant 7 heated up by the compression process dissipates its heat to the highly thermo-conductive serpentine condenser coils 9 .
  • the condenser coils 9 in turn dissipate part of the heat to the ambient air, but another part to the container 8 .
  • the container 8 likewise consists of a highly thermo-conductive material, it conducts the heat into the heat storage medium 10 contained in the plastic bag 11 .
  • Said plastic bag 11 and associated heat storage medium 10 is located in the internal space formed by the container 8 and has large-area contact with the container walls.
  • the serpentine condenser coils 9 are dimensioned such that, during the running times of the compressor 1 , they can dissipate the excess heat to the ambient air and to the heat storage medium 10 .
  • a cooler 12 is provided on the top of the container 8 .
  • the cavities 14 formed by the cooling loops 13 of the cooler 12 there is generated by means of the blower 15 a forced convection which is capable of removing a large amount of heat from the cooler 12 .
  • the heat storage medium 10 it is possible to temporarily store the heat produced by the compressor 1 and to dissipate this heat to the ambient air even during the idle times of the compressor 1 .
  • the blower is therefore operated during the running times but also during the idle times of the compressor. In this way heat dissipation takes place not only during the running time and it becomes possible to make the condenser much smaller than hitherto.
  • the heat storage medium 10 shall have a high thermal capacity, but must not incur high costs, so that the manufacturing costs of the condenser are not excessively increased. Water preeminently meets these requirements.
  • the container 8 is not required to be leak-proof, no complicated manufacturing processes are required either. Thus it is always possible to adapt the container 8 to the mounting requirements in the refrigerating device. Less space is therefore required by the new condenser in each case than for the previous technical solutions.
  • blower 15 operates independently of the on-time of the compressor 1 , it does not need to be particularly powerful. An inexpensive blower, which nevertheless operates very quietly, can therefore be used.

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  • 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)
US12/310,418 2006-09-07 2007-08-17 Refrigerator Abandoned US20090314027A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006042020.9 2006-09-07
DE102006042020A DE102006042020A1 (de) 2006-09-07 2006-09-07 Kältegerät
PCT/EP2007/058558 WO2008028790A1 (fr) 2006-09-07 2007-08-17 Appareil de rÉFRIGÉration

Publications (1)

Publication Number Publication Date
US20090314027A1 true US20090314027A1 (en) 2009-12-24

Family

ID=38969532

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/310,418 Abandoned US20090314027A1 (en) 2006-09-07 2007-08-17 Refrigerator

Country Status (6)

Country Link
US (1) US20090314027A1 (fr)
EP (1) EP2064503A1 (fr)
CN (1) CN101512271B (fr)
DE (1) DE102006042020A1 (fr)
RU (1) RU2435116C2 (fr)
WO (1) WO2008028790A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110113824A1 (en) * 2008-07-07 2011-05-19 Husnu Kerpicci Evaporator
CN112033047A (zh) * 2020-08-27 2020-12-04 昆山高鑫峰机械有限公司 一种高效散热的工业冷水机用蒸发器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6786056B2 (en) * 2002-08-02 2004-09-07 Hewlett-Packard Development Company, L.P. Cooling system with evaporators distributed in parallel
DE102008019387A1 (de) * 2008-04-17 2009-10-22 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät, insbesondere Haushaltskältegerät umfassend einen Verflüssiger mit Wärmespeicherelementen
DE102017000237A1 (de) 2016-03-16 2017-09-21 Liebherr-Hausgeräte Lienz Gmbh Kältemittelkreislauf für ein Kühl- und/oder Gefriergerät

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2365786A (en) * 1943-09-09 1944-12-26 Westinghouse Electric & Mfg Co Refrigeration apparatus
US5269145A (en) * 1991-06-28 1993-12-14 Deutsche Forschungsanstalt Fuer Luft- Und Raumfahrt E.V. Heat storage system with combined heat storage device
US5979693A (en) * 1997-12-29 1999-11-09 Bane, Iii; William W. Panel for shipping containers
US6393861B1 (en) * 1999-09-17 2002-05-28 Robert Levenduski Thermal storage apparatus and method for air conditioning system
US20020129617A1 (en) * 1999-10-08 2002-09-19 Hans-Christian Mack Heat exchanger, such as evaporator, condenser, or the like
US6668567B2 (en) * 1999-09-17 2003-12-30 Robert Levenduski Thermal storage apparatus and method for air conditioning system
US20040177949A1 (en) * 2002-08-29 2004-09-16 Masahiro Shimoya Heat exchanger
US20060112717A1 (en) * 2003-01-21 2006-06-01 Walton Philip A Bag-in-box containers and coolers
US7278279B2 (en) * 2002-03-13 2007-10-09 Matsushita Refrigeration Co. Refrigerator
US7721787B2 (en) * 2003-09-26 2010-05-25 Flair Corporation Refrigeration-type dryer apparatus and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1307179A1 (ru) * 1985-12-19 1987-04-30 Всесоюзный Научно-Исследовательский Институт Холодильной Промышленности Аккумул тор холода
RU2113664C1 (ru) * 1995-05-15 1998-06-20 Акционерное общество открытого типа "Сибкриотехника" Переносной холодильник и способ его работы
RU2161290C1 (ru) * 2000-03-16 2000-12-27 Государственное унитарное предприятие "Федеральный научно-производственный центр ГУП "ФНПЦ" "ПРИБОР" Устройство для охлаждения жидкости
ITMI20010212A1 (it) * 2001-02-02 2002-08-02 Whirlpool Co Condensatore di circuito frigorigeno particolarmente per frigoriferi congelatori e simili apparecchi domestici

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2365786A (en) * 1943-09-09 1944-12-26 Westinghouse Electric & Mfg Co Refrigeration apparatus
US5269145A (en) * 1991-06-28 1993-12-14 Deutsche Forschungsanstalt Fuer Luft- Und Raumfahrt E.V. Heat storage system with combined heat storage device
US5979693A (en) * 1997-12-29 1999-11-09 Bane, Iii; William W. Panel for shipping containers
US6393861B1 (en) * 1999-09-17 2002-05-28 Robert Levenduski Thermal storage apparatus and method for air conditioning system
US6668567B2 (en) * 1999-09-17 2003-12-30 Robert Levenduski Thermal storage apparatus and method for air conditioning system
US20020129617A1 (en) * 1999-10-08 2002-09-19 Hans-Christian Mack Heat exchanger, such as evaporator, condenser, or the like
US6701742B2 (en) * 1999-10-08 2004-03-09 BSH Bosch und Siemens Hausgeräte GmbH Heat exchanger, such as evaporator, condenser, or the like
US7278279B2 (en) * 2002-03-13 2007-10-09 Matsushita Refrigeration Co. Refrigerator
US20040177949A1 (en) * 2002-08-29 2004-09-16 Masahiro Shimoya Heat exchanger
US20060112717A1 (en) * 2003-01-21 2006-06-01 Walton Philip A Bag-in-box containers and coolers
US7721787B2 (en) * 2003-09-26 2010-05-25 Flair Corporation Refrigeration-type dryer apparatus and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110113824A1 (en) * 2008-07-07 2011-05-19 Husnu Kerpicci Evaporator
CN112033047A (zh) * 2020-08-27 2020-12-04 昆山高鑫峰机械有限公司 一种高效散热的工业冷水机用蒸发器

Also Published As

Publication number Publication date
RU2009109833A (ru) 2010-10-20
CN101512271A (zh) 2009-08-19
RU2435116C2 (ru) 2011-11-27
CN101512271B (zh) 2011-07-27
EP2064503A1 (fr) 2009-06-03
DE102006042020A1 (de) 2008-03-27
WO2008028790A1 (fr) 2008-03-13

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AS Assignment

Owner name: BSH BOSCH UND SIEMENS HAUSGERATE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LIENGAARD, NIELS;REEL/FRAME:022342/0106

Effective date: 20090216

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION