EP2110622A2 - Appareil de réfrigération et/ou de refroidissement - Google Patents

Appareil de réfrigération et/ou de refroidissement Download PDF

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Publication number
EP2110622A2
EP2110622A2 EP09004779A EP09004779A EP2110622A2 EP 2110622 A2 EP2110622 A2 EP 2110622A2 EP 09004779 A EP09004779 A EP 09004779A EP 09004779 A EP09004779 A EP 09004779A EP 2110622 A2 EP2110622 A2 EP 2110622A2
Authority
EP
European Patent Office
Prior art keywords
evaporator
cooling
freezer
temperature
compartment
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.)
Granted
Application number
EP09004779A
Other languages
German (de)
English (en)
Other versions
EP2110622B1 (fr
EP2110622A3 (fr
Inventor
Andreas Prentner
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.)
Liebherr Hausgeraete Lienz GmbH
Original Assignee
Liebherr Hausgeraete Lienz 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 Liebherr Hausgeraete Lienz GmbH filed Critical Liebherr Hausgeraete Lienz GmbH
Publication of EP2110622A2 publication Critical patent/EP2110622A2/fr
Publication of EP2110622A3 publication Critical patent/EP2110622A3/fr
Application granted granted Critical
Publication of EP2110622B1 publication Critical patent/EP2110622B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • 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
    • F25B2600/25—Control of valves
    • F25B2600/2511—Evaporator distribution valves

Definitions

  • the present invention relates to a refrigerator and / or freezer with a plurality of temperature zones and at least one refrigerant circuit with at least one compressor, at least one condenser and at least one evaporator.
  • Refrigerators and / or freezers with several temperature zones are already known from the prior art.
  • this cooling zones are provided in the refrigerator and freezing zones in the freezer compartment of the refrigerator and / or freezer.
  • a further temperature zone is provided, prevail in the constant in about 0 ° C.
  • Such 0 ° C zones are e.g. intended for the storage of fruit or vegetables.
  • a refrigerator and / or freezer with the features of claim 1. Thereafter, it is provided that a refrigerator and / or freezer is provided with a plurality of temperature zones and at least one compressor, at least one condenser and at least one evaporator, wherein in the at least one refrigerant circuit, a single solenoid valve is provided.
  • This has the advantage that can be used in refrigerators and / or freezers with multiple temperature zones existing series engine room niches.
  • a solenoid valve it is possible to enable or disable lines to set the desired cooling capacity in the corresponding evaporator.
  • thermo zones are provided. This has the advantage that separate temperature zones for the storage of frozen food, refrigerated goods, fruits to be cooled and / or vegetables and z. B. drinks are set up.
  • the evaporator has a plurality of evaporator surfaces or areas associated with the temperature zones.
  • "Evaporator surfaces or areas” can also be understood as meaning separate or interconnected evaporators.
  • the term “the evaporator” thus also includes several evaporators, which can be connected to each other or separated from each other.
  • the evaporator surface is formed, for example, by the number of turns of the evaporator, which are arranged in the respective temperature zone. It is conceivable in this context, form by corresponding turns of the evaporator several evaporator surfaces, which are associated with the temperature zones.
  • the evaporator surfaces are adapted in terms of area to the respective temperature zone. In this way, correspondingly more turns of an evaporator can be placed in temperature zones which are to be cooled more strongly, or can be guided around the temperature zone, so that a larger effective evaporator surface results. Correspondingly, a smaller evaporator surface can be provided in the case of less strongly cooled areas.
  • the evaporator has an at least double evaporator line or winding in the region of the freezer part. This results in the advantage that a higher winding density of the evaporator windings is provided in the region of the freezer part, which results in a larger evaporator surface and a higher heat removal or greater possible cooling capacity in the freezer part.
  • the evaporator can also have more than two windings.
  • the compensation of the filling quantity differences (depending on solenoid valve position) in the downstream freezer evaporator is possible.
  • the double or more double-wrapped freezer-type evaporator also allows the freezer compartment to maintain a sufficiently low temperature regardless of the position of the solenoid valve.
  • the refrigerator and / or freezer comprises a freezer compartment, a refrigerator compartment, a 0 ° C zone area and a refrigerated compartment, each of which is assigned its own temperature zone.
  • the refrigerator and / or freezer has a device control.
  • the compressor running times depending on the indoor or outdoor temperatures of the refrigerator and / or freezer can be controlled and / or regulated. It is also possible, e.g. Include the number of door openings in the control and / or regulation of the refrigerator and / or freezer.
  • the solenoid valve can be actuated in order to provide fresh coolant, for example, in the cooling part or in another evaporator surface arranged in the end area of the evaporator. to be supplied via a bypass line.
  • At least one surface heating in the cooling part and / or cooling compartment or in the 0 ° C compartment is provided.
  • surface heating there is an additional possibility of influencing the temperature within the cooling part and / or cooling compartment and / or 0 ° C compartment. Fluctuations within the respective temperature zone of the cooling part and / or cooling compartment or of the 0 ° C compartment can thus be reduced.
  • the Einregelvorgang in the respective temperature zone can be significantly shortened.
  • the surface heating is connected to a corresponding control and / or regulation such as the device control or even has its own control and / or regulation.
  • At least one interior fan is provided.
  • indoor fans By such indoor fans, a uniform temperature distribution can be achieved e.g. within the refrigerator compartment or within the 0 ° C zone.
  • the interior fans are also in an advantageous embodiment with the device control in connection.
  • the interior fan is designed to be speed-controlled.
  • the indoor fan is arranged in the cooling part and / or cooling compartment. In these relatively large areas of the refrigerator and / or freezer so sets up a uniform temperature distribution in an advantageous manner.
  • the device control can be designed such that the temperature control of the temperature zones takes place as a function of the temperature in the cooling part and / or cooling compartment.
  • the solenoid valve is arranged in front of the evaporator.
  • the first refrigeration compartment may be a refrigerated compartment
  • the second refrigeration compartment may be a refrigerated compartment
  • either the first cooling compartment or the second cooling compartment is supplied with refrigerant.
  • the evaporator of the firstdekompartimentes an evaporator is connected downstream, which serves to cool anotherdekompartimentes, for example, a 0 ° C compartment.
  • a line leads from the first cooling compartment or from the second cooling compartment or from the said further cooling compartment or the 0 ° C compartment to the freezer-evaporator.
  • These lines can be connected to one of the windings of the freezer compartment evaporator or form one winding of the freezer compartment evaporator in each case.
  • a dryer may be arranged.
  • the solenoid valve is arranged after the dryer.
  • a first temperature zone has -18 ° C, a second temperature zone +4 to + 9 ° C, a third temperature zone 0 ° C and a fourth temperature zone +4 to + 14 ° C.
  • the first temperature zone is very well suited for the storage of frozen food, while the second temperature zone is very good for the storage of e.g. Meat, sausage and / or cheese is suitable.
  • the third temperature zone with almost constant 0 ° C allows the storage of fruit and / or vegetables, whereby the maximum shelf life of the fruit and / or vegetables can be achieved.
  • the fourth temperature zone can be seen, for example, provided for the storage of drinks, but also any other storage of refrigerated goods is conceivable.
  • the first temperature zone is assigned to the freezer compartment, the second temperature zone to the refrigerator compartment, the third temperature zone to the 0 ° zone area and the fourth temperature zone to the refrigerator compartment.
  • the user has four areas for the corresponding storage of frozen food in the first temperature zone, refrigerated goods such. Meat, sausage or cheese in the second temperature zone, e.g. Fruits and vegetables in the third temperature zone and e.g. Drinks in the fourth temperature zone available.
  • FIG. 1 shows a schematic representation of a refrigeration cycle of a refrigerator and / or freezer according to the present invention.
  • FIG. 1 shown condenser / evaporator structure largely housed in the rear area of the refrigerator and / or freezer.
  • Compressor and solenoid valve may be arranged for example in a conventional engine compartment niche.
  • the refrigerator and / or freezer has four different temperature zones 12, 14, 16 and 18.
  • the first temperature zone 12 has a temperature of -18 ° C
  • the second temperature zone 14 a temperature range of + 4 ° C to + 9 ° C
  • the third temperature zone 16 a temperature of 0 ° C
  • the fourth temperature zone a temperature of + 4 ° C to + 14 ° C.
  • the first temperature zone 12 is assigned to the freezer compartment 11, the second temperature zone 14 to the refrigerator compartment 13, the third temperature zone 16 to the 0 ° zone area 15 and the fourth temperature zone 18 to the refrigerator compartment 17.
  • the compressor 20 of the refrigerator and / or freezer is arranged on the bottom side in the compressor table. Downstream of the condenser 30 is the dryer 90.
  • the refrigerant circuit further comprises a switchable in two different positions solenoid valve 50, which follows the dryer 90.
  • a line 51 leads to the evaporator 44 of the cooling part 13 and a further line 52 to the evaporator 48 of the cooling compartment 17th
  • FIG. 2 follows on the evaporator 44 of the cooling part 13 of the evaporator 46 of the 0 ° C range 15.
  • the reference numeral 40 in FIG. 2 stands representative of "the evaporator” consisting of individual evaporator units or sections 42, 44, 48, 48.
  • an indoor fan 70 and a surface heating, not shown, preferably in the side walls of the cooling part 13 is provided.
  • the indoor fan 70 and the surface heating 60, not shown, are available with the in FIG. 1 and 2 not shown device control in conjunction.
  • the interior fan 70 is preferably speed-controlled.
  • the refrigerant After flowing through the evaporator 46 of the 0 ° C zone region 15, the refrigerant is supplied to the freezer evaporator 42.
  • the line 53 which connects the evaporator 46 of the 0 ° C zone region 15 with the evaporator 42 of the freezer 12 or a coil 41 of the freezer evaporator 42 represents.
  • a second line 52 leads from the solenoid valve 50 to the evaporator 48 of the cooling compartment 17. Also in the cooling compartment 17, an indoor fan 70 and a surface heating, not shown, preferably in the side walls of the cooling compartment 17 is provided.
  • the one or more indoor fans 70 and the surface heating are available with an in FIG. 1 not shown device control in conjunction.
  • either the evaporator 44 of the cooling part 13 or the evaporator 48 of the cooling compartment 17 can be supplied with refrigerant.
  • the temperature in the temperature zone 18 of the refrigerating compartment 17 is independent of the remaining temperature zones 12, 14, 16 influence.
  • the solenoid valve 50 is activated as needed via the device control, not shown.
  • the setpoint values and actual values necessary for the control are determined by the device control via temperature sensors (not shown) and by a comparison of the actual temperature in the respective temperature zone and the stored setpoint value (s).
  • a conduit 54 extends to and communicates with the freezing-compartment evaporator 42, forming another coil 43 of the freezing-compartment evaporator 42.
  • the evaporator surfaces are made different sizes and the respective cooling requirements of the temperature zones 12, 14, 16, 18 and the compartments 11, 13, 15, 17 are adapted.
  • a compensation of the differences in fill levels depending on the position of the solenoid valve 50 is possible in the downstream freezer-evaporator or in the at least two windings 41, 43 of the freezer-evaporator 42.
  • FIG. 1 and 2 illustrated wiring also allows sufficiently low temperatures prevail in the freezer compartment, since the Gefrierteil-evaporator 42 is acted upon in both positions of the solenoid valve 50 with refrigerant either from the evaporator 46 of the 0 ° C zone region 15 or from the evaporator 48 of the refrigerator compartment 17 ,
  • the refrigerant is sucked in via the suction pipe 22 and compressed in the compressor 20.
  • the refrigerant is liquefied by heat release and subsequently passed through the dryer 90.
  • the refrigerant passes through the solenoid valve 50, which can be switched via a device control, not shown, in the position A or in the position B.
  • the refrigerant is supplied to the cooling part evaporator 44 or the cooling compartment evaporator 48 of the solenoid valve 50. If the refrigerant is first supplied to the evaporator 44 of the cooling part 13, this then flows through the evaporator 46 of the 0 ° C compartment 15 and then a winding 41 of the freezer evaporator 42. If the refrigerant is fed to the evaporator 48 of the refrigerating compartment 17, then flows through this another winding 43 of the freezer evaporator 42nd
  • the temperature zone 14 in the cooling part 13 can additionally be adjusted via a wall heater and an indoor fan in a range of + 4 ° C to + 9 ° C.
  • the temperature zone 16 of the 0 ° C zone region 15 is preferably adjusted to a constant 0 ° C.
  • the solenoid valve 50 is controlled by the device control so that it is in the position B is switched, so that the refrigerant via the line 52 to the evaporator 48 of the cooling compartment 17 is supplied.
  • FIG. 2 shows the arrangement of the refrigerant circuit according to FIG. 1 in a perspective view.
  • the freezer evaporator 42 consists of two separate windings 41, 43, one communicating with the outlet of the evaporator 46 of the 0 ° C zone 15 and the other with the outlet of the evaporator 48 of the refrigerating compartment 17 connection stands.
  • the two windings 41, 43 of the freezer-evaporator 42 can be combined on the outlet side and are guided in a common line 55 back to the compressor 20.
  • the evaporator 42 of the freezer 11 is a double-wound evaporator 11
  • the evaporators 44, 46, 48 of the other compartments that is the evaporator 48 of the refrigerating compartment 17, the evaporator 46 of the 0 ° C compartment 15 and the evaporator 44 of the cooling part 13 in a plane or in mutually offset planes.
  • These evaporators 44, 46, 48 consist of meandering pipelines, which are arranged on corresponding boards.
  • the present invention it is possible to use existing series engine room niches by means of a refrigeration cycle with a compressor and a solenoid valve.
  • the invention relates to a 4-zone control with a compressor and with a solenoid valve.
  • the individual compartments or zones associated evaporator or evaporator surfaces are adapted to the corresponding cooling requirements and thus not necessarily the same size, but preferably different.
  • the temperature setting is supported in the embodiment shown here by an electronics that allow depending on the set temperature in the cooling part 13 and in the cooling compartment 17 with speed-controlled indoor fans 70 and surface heating to reach the desired temperature.

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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)
EP09004779.6A 2008-04-15 2009-03-31 Appareil de réfrigération et/ou de refroidissement Expired - Fee Related EP2110622B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008005199 2008-04-15
DE202008009956U DE202008009956U1 (de) 2008-04-15 2008-07-24 Kühl- und/oder Gefriergerät

Publications (3)

Publication Number Publication Date
EP2110622A2 true EP2110622A2 (fr) 2009-10-21
EP2110622A3 EP2110622A3 (fr) 2012-01-18
EP2110622B1 EP2110622B1 (fr) 2014-12-17

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ID=40984334

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Application Number Title Priority Date Filing Date
EP09004779.6A Expired - Fee Related EP2110622B1 (fr) 2008-04-15 2009-03-31 Appareil de réfrigération et/ou de refroidissement

Country Status (3)

Country Link
EP (1) EP2110622B1 (fr)
DE (1) DE202008009956U1 (fr)
ES (1) ES2527141T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015007026A1 (fr) * 2013-07-19 2015-01-22 海尔集团公司 Réfrigérateur à refroidissement direct
WO2015007025A1 (fr) * 2013-07-19 2015-01-22 海尔集团公司 Réfrigérateur à refroidissement direct

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19756861A1 (de) 1997-12-19 1999-06-24 Bosch Siemens Hausgeraete Kältegerät
WO2004016999A1 (fr) 2002-08-14 2004-02-26 Kabushiki Kaisha Toshiba Refrigerateur
WO2005057104A1 (fr) 2003-12-09 2005-06-23 Matsushita Electric Industrial Co., Ltd. Refrigerateur
US20060179858A1 (en) 2003-12-22 2006-08-17 Kabushiki Kaisha Toshiba Refrigerator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3314056A1 (de) * 1983-04-19 1984-10-25 Bosch Siemens Hausgeraete Kuehlgeraet, insbesondere gefrierschrank oder dgl.
AU636497B2 (en) * 1990-09-27 1993-04-29 Mitsubishi Denki Kabushiki Kaisha Refrigerator with a frozen food compartment
DE4242776A1 (de) * 1992-12-17 1994-06-23 Bosch Siemens Hausgeraete Kühlgerät, insbesondere Mehrtemperaturen-Kühlgerät
DE19648399A1 (de) * 1996-11-22 1998-05-28 Aeg Hausgeraete Gmbh Kühlgerät
KR100404984B1 (ko) * 2000-08-24 2003-11-10 가부시끼가이샤 도시바 냉장고 및 그 제어방법
CN2655138Y (zh) * 2003-11-06 2004-11-10 海信（北京）电器有限公司 四温区冰箱
DE102007016849A1 (de) * 2007-04-10 2008-10-16 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit drei Temperaturzonen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19756861A1 (de) 1997-12-19 1999-06-24 Bosch Siemens Hausgeraete Kältegerät
WO2004016999A1 (fr) 2002-08-14 2004-02-26 Kabushiki Kaisha Toshiba Refrigerateur
WO2005057104A1 (fr) 2003-12-09 2005-06-23 Matsushita Electric Industrial Co., Ltd. Refrigerateur
US20060179858A1 (en) 2003-12-22 2006-08-17 Kabushiki Kaisha Toshiba Refrigerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015007026A1 (fr) * 2013-07-19 2015-01-22 海尔集团公司 Réfrigérateur à refroidissement direct
WO2015007025A1 (fr) * 2013-07-19 2015-01-22 海尔集团公司 Réfrigérateur à refroidissement direct

Also Published As

Publication number Publication date
DE202008009956U1 (de) 2009-08-20
EP2110622B1 (fr) 2014-12-17
ES2527141T3 (es) 2015-01-20
EP2110622A3 (fr) 2012-01-18

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