EP0902244A2 - Refrigeration apparatus with a cooling space and a freezing compartment - Google Patents
Refrigeration apparatus with a cooling space and a freezing compartment Download PDFInfo
- Publication number
- EP0902244A2 EP0902244A2 EP98109791A EP98109791A EP0902244A2 EP 0902244 A2 EP0902244 A2 EP 0902244A2 EP 98109791 A EP98109791 A EP 98109791A EP 98109791 A EP98109791 A EP 98109791A EP 0902244 A2 EP0902244 A2 EP 0902244A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- evaporator
- assigned
- cooling
- plate
- freezer 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
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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
- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/05—Compression system with heat exchange between particular parts of the system
- F25B2400/052—Compression system with heat exchange between particular parts of the system between the capillary tube and another part of the refrigeration cycle
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
Definitions
- the invention relates to a refrigerator with a normal cold room and a freezer compartment, in which the compressor provided with a control device contains the refrigerant introduces via a capillary tube into a tube section, which the evaporator of the freezer compartment.
- refrigerators of this type The problem with refrigerators of this type is to freeze the freezer compartment the evaporator to supply the required cooling capacity and on the other to ensure that the normal cooling room has the required cooling capacity Plate is fed, which is so large that it is sufficiently large Dehumidification surface forms, and beyond that the normal cold room only that supplies the required cooling capacity, which prevents the temperature from falling too low.
- EP 0 758 732 A2 deals with this problem and proposes a solution a cooling device of the type specified above, in which the evaporator from two evaporator sections connected in series with the refrigerant leading Pipe sections exist, the evaporator section assigned to the normal cooling space consists of a plate of good heat-conducting material, the Size is designed for the area required for dehumidification, and the plate is connected to the pipe section carrying the refrigerant such that it with essentially the same temperature distribution that required for the normal cold room Cooling power is supplied.
- a disadvantage of the known cooling device is that a portion of the evaporator parts forming a closed coil, the freezer and the Normal cold room is assigned so that a connection consisting of two lines exists between the two sections, and that a coupling of the the pipe section forming the normal cold room evaporator to a cooling and dehumidifying plate is difficult because the normal cold room evaporator is formed Pipe section is still at a relatively low temperature.
- the object of the invention is therefore to provide a cooling device of the type specified to create, in which the cooling and dehumidifying plate assigned to the normal cold room simpler design and easier to train so large that a enough dehumidification area created and the normal cold room required cooling capacity is supplied.
- this object is achieved in that the evaporator Pipe section only the freezer and the normal cold room a refrigerator and Dehumidification plate is assigned, at least in the heat-conducting connection with parts or portions of that from the evaporator of the freezer the compressor running suction pipe, in which at least part of it The length of the capillary tube runs.
- the cooling device there is an extended section of the Intake pipe at least partially in heat-conducting connection with that of the normal cold room assigned cooling and dehumidifying plate so that it lengthened Section forms a heat exchanger with the capillary tube.
- the suction pipe gives due to the back flow of refrigerant vapor a sufficient cooling capacity from the cooling and dehumidifying plate.
- the suction pipe is at a higher temperature level than an evaporator pipe section, is the coupling of the suction pipe to the cooling and dehumidifying plate easier. This coupling can be done by gluing, soldering or welding or also by clamping with from the cooling and Dehumidification plate cut out and bent tongues take place.
- a roll or Z-bond board can also be used as a cooling and dehumidifying plate be provided.
- the capillary tube laid in the suction tube at least a part of it Emits heat to the intake manifold or the returning refrigerant vapor, can be a colder at the injection point of the freezer compartment evaporator tube Refrigerants are released so that the cooling capacity in the freezer and thus the efficiency can be increased. This results in shorter compressor runtimes and thus a reduced energy consumption.
- Dehumidification plate results from the supply of heat via the capillary at the beginning the standing time is shortened because defrosting is completed faster, and thus shorter run times for the compressor. This means that the compressor works with better efficiency because it works for shorter times in one thermodynamically unfavorable range works. The result of shorter terms is less energy consumption and less temperature fluctuations in the device.
- the evaporator 1 assigned to the freezer compartment consists of a plate 2 which is used for Adaptation to the freezer compartment can be bent in a U-shape, as it is in EP 0 758 732 A2 is shown. With the plate 2, the evaporator coil can be in any To be connected wisely.
- the evaporator plate 2 can also be trade a roll or Z-bond evaporator board into which the evaporator coil is embossed.
- the intake coil 4 is connected to the the cooling and dehumidifying plate 5 associated with the normal cooling space is coupled is.
- the coupling can be done by individual soldering or welding points, not shown or also by means of a clamp with the plate 5 bent out Tongues are made.
- the intake manifold 4 runs in the dash-dotted line Way the capillary tube 6, which at the injection point 7 in the straight section 8th of the evaporator tube opens.
- the end of the straight evaporator tube section subsequent pipe coil opens in the manner shown in the Intake pipe 4.
- Section A-A shows the course of the capillary tube 6 in the suction tube 4.
Landscapes
- 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)
Abstract
Description
Die Erfindung betrifft ein Kühlgerät mit einem Normalkühlraum und einem Tiefkühlfach, bei dem der mit einer Steuereinrichtung versehene Kompressor das Kältemittel über ein Kapillarrohr in einen Rohrabschnitt einleitet, der dem Verdampfer des Tiefkühlfachs zugeordnet ist.The invention relates to a refrigerator with a normal cold room and a freezer compartment, in which the compressor provided with a control device contains the refrigerant introduces via a capillary tube into a tube section, which the evaporator of the freezer compartment.
Bei Kühlgeräten dieser Art besteht das Problem, einmal dem Tiefkühlfach über dessen Verdampfer die erforderliche Kälteleistung zuzuführen und zum anderen sicher zu stellen, daß dem Normalkühlraum die benötigte Kälteleistung über eine Platte zugeführt wird, die so groß ausgebildet ist, daß sie eine genügend große Entfeuchtungsfläche bildet, und die darüberhinaus dem Normalkühlraum nur die benötigte Kälteleistung zuführt, die ein zu tiefes Absinken der Temperatur ausschließt. Die EP 0 758 732 A2 befaßt sich mit diesem Problem und schlägt zur Lösung ein Kühlgerät der eingangs angegebenen Art vor, bei dem der Verdampfer aus zwei in Reihen geschalteten Verdampferabschnitte mit das Kältemittel führenden Rohrabschnitten besteht, wobei der dem Normalkühlraum zugeordnete Verdampferabschnitt aus einer Platte aus gut wärmeleitendem Material besteht, deren Größe auf die zur Entfeuchtung benötigte Fläche ausgelegt ist, und wobei die Platte derart mit dem das Kältemittel führenden Rohrabschnitt verbunden ist, daß dieser bei im wesentlichen gleicher Temperaturverteilung die für den Normalkühlraum erforderliche Kälteleistung zugeführt wird.The problem with refrigerators of this type is to freeze the freezer compartment the evaporator to supply the required cooling capacity and on the other to ensure that the normal cooling room has the required cooling capacity Plate is fed, which is so large that it is sufficiently large Dehumidification surface forms, and beyond that the normal cold room only that supplies the required cooling capacity, which prevents the temperature from falling too low. EP 0 758 732 A2 deals with this problem and proposes a solution a cooling device of the type specified above, in which the evaporator from two evaporator sections connected in series with the refrigerant leading Pipe sections exist, the evaporator section assigned to the normal cooling space consists of a plate of good heat-conducting material, the Size is designed for the area required for dehumidification, and the plate is connected to the pipe section carrying the refrigerant such that it with essentially the same temperature distribution that required for the normal cold room Cooling power is supplied.
Ein Nachteil des bekannten Kühlgeräts besteht darin, daß je ein Abschnitt der Verdampferteile bildenden geschlossenen Rohrschlange dem Tiefkühlfach und dem Normalkühlraum zugeordnet ist, so daß eine aus zwei Leitungen bestehende Verbindung zwischen den beiden Abschnitten besteht, und daß eine Ankopplung des den Normalkühlraumverdampfer bildenden Rohrabschnitts an eine Kühl- und Entfeuchtungsplatte schwierig ist, weil sich der den Normalkühlraumverdampfer bildende Rohrabschnitt immer noch auf einer verhältnismäßig tiefen Temperatur befindet.A disadvantage of the known cooling device is that a portion of the evaporator parts forming a closed coil, the freezer and the Normal cold room is assigned so that a connection consisting of two lines exists between the two sections, and that a coupling of the the pipe section forming the normal cold room evaporator to a cooling and dehumidifying plate is difficult because the normal cold room evaporator is formed Pipe section is still at a relatively low temperature.
Aufgabe der Erfindung ist es daher, ein Kühlgerät der eingangs angegebenen Art zu schaffen, bei dem sich die dem Normalkühlraum zugeordnete Kühl- und Entfeuchtungsplatte einfacher gestalten und einfacher so groß ausbilden läßt, daß eine genügend große Entfeuchtungsfläche geschaffen und dem Normalkühlraum die erforderliche Kälteleistung zugeführt wird.The object of the invention is therefore to provide a cooling device of the type specified to create, in which the cooling and dehumidifying plate assigned to the normal cold room simpler design and easier to train so large that a enough dehumidification area created and the normal cold room required cooling capacity is supplied.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß der den Verdampfer bildende Rohrabschnitt nur dem Tiefkühlfach und dem Normalkühlraum eine Kühl- und Entfeuchtungsplatte zugeordnet ist, die in wärmeleitender Verbindung zumindest mit Teilen oder Abschnitten des von dem Verdampfer des Tiefkühlfachs zu dem Kompressor verlaufenden Saugrohr ist, in dem zumindest über einen Teil seiner Länge das Kapillarrohr verläuft.According to the invention this object is achieved in that the evaporator Pipe section only the freezer and the normal cold room a refrigerator and Dehumidification plate is assigned, at least in the heat-conducting connection with parts or portions of that from the evaporator of the freezer the compressor running suction pipe, in which at least part of it The length of the capillary tube runs.
Bei dem erfindungsgemäßen Kühlgerät befindet sich ein verlängerter Abschnitt des Saugrohrs zumindest teilweise in wärmeleitender Verbindung mit der dem Normalkühlraum zugeordneten Kühl- und Entfeuchtungsplatte, so daß dieser verlängerte Abschnitt einen Wärmetauscher mit dem Kapillarrohr bildet. Das Saugrohr gibt dabei aufgrund des durch dieses zurückströmenden Kaltemitteldampfes noch immer eine genügend große Kälteleistung an die Kühl- und Entfeuchtungsplatte ab. Da sich das Saugrohr auf einem höheren Temperaturniveau befindet als ein Verdampferrohrabschnitt, ist die Ankoppelung des Saugrohrs an die Kühl- und Entfeuchtungsplatte einfacher. Diese Ankoppelung kann durch Verkleben, Verlöten oder Verschweißen oder aber auch durch Verklammerung mit aus der Kühl- und Entfeuchtungsplatte herausgeschnittenen und herausgebogenen Zungen erfolgen. Schließlich kann als Kühl- und Entfeuchungsplatte auch eine Roll- oder Z-Bond-Platine vorgesehen werden.In the cooling device according to the invention there is an extended section of the Intake pipe at least partially in heat-conducting connection with that of the normal cold room assigned cooling and dehumidifying plate so that it lengthened Section forms a heat exchanger with the capillary tube. The suction pipe gives due to the back flow of refrigerant vapor a sufficient cooling capacity from the cooling and dehumidifying plate. There the suction pipe is at a higher temperature level than an evaporator pipe section, is the coupling of the suction pipe to the cooling and dehumidifying plate easier. This coupling can be done by gluing, soldering or welding or also by clamping with from the cooling and Dehumidification plate cut out and bent tongues take place. Finally, a roll or Z-bond board can also be used as a cooling and dehumidifying plate be provided.
Dadurch, daß das in dem Saugrohr verlegte Kapillarrohr zumindest einen Teil seiner Wärme an das Saugrohr bzw. den rückströmenden Kältemitteldampf abgibt, kann an der Einspritzstelle des Verdampferrohrs des Tiefkühlfachs ein kälteres Kältemittel abgegeben werden, so daß die Kälteleistung in dem Gefrierteil und damit der Wirkungsgrad gesteigert werden kann. Daraus ergeben sich kürzere Kompressorlaufzeiten und somit auch ein verringerter Energieverbrauch.Characterized in that the capillary tube laid in the suction tube at least a part of it Emits heat to the intake manifold or the returning refrigerant vapor, can be a colder at the injection point of the freezer compartment evaporator tube Refrigerants are released so that the cooling capacity in the freezer and thus the efficiency can be increased. This results in shorter compressor runtimes and thus a reduced energy consumption.
Durch die erfindungsgemäße Anordnung des Kapillarrohrs in dem Saugrohr und die Ankoppelung des Saugrohrs an die dem Normalkühlraum zugeordnete Kühl- und Entfeuchtungsplatte ergeben sich durch die Wärmezufuhr über die Kapillare zu Beginn der Laufzeit verkürzte Stehzeiten, da das Abtauen schneller beendet ist, und damit auch kürzere Laufzeiten für den Kompressor. Dies bedeutet, daß der Kompressor mit besserem Wirkungsgrad arbeitet, weil er für kürzere Zeiten in einem thermodynamisch ungünstigen Bereich arbeitet. Das Ergebnis der kürzeren Laufzeiten ist ein geringerer Energieverbrauch und geringere Temperaturschwankungen in dem Gerät.Due to the arrangement of the capillary tube in the suction tube and the Coupling of the suction pipe to the cooling and the cooling room assigned Dehumidification plate results from the supply of heat via the capillary at the beginning the standing time is shortened because defrosting is completed faster, and thus shorter run times for the compressor. This means that the compressor works with better efficiency because it works for shorter times in one thermodynamically unfavorable range works. The result of shorter terms is less energy consumption and less temperature fluctuations in the device.
Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert, in deren einziger Figur eine Draufsicht auf den Gefrierteilverdampfer und die dem Normalkühlraum zugeordnete Kühl- und Entfeuchtungsplatte mit angekoppeltem Saugrohr schematisch dargestellt ist.An embodiment of the invention is described below with reference to the drawing explained in more detail, in their single figure a top view of the freezer compartment evaporator and the cooling and dehumidifying plate assigned to the normal cooling room coupled intake manifold is shown schematically.
Der dem Tiefkühlfach zugeordnete Verdampfer 1 besteht aus einer Platte 2, die zur Anpassung an das Tiefkühlfach U-förmig gebogen sein kann, wie es in der EP 0 758 732 A2 dargestellt ist. Mit der Platte 2 kann die Verdampferrohrschlange in beliebiger Weise verbunden sein. Bei der Verdampferplatte 2 kann es sich auch um eine Roll- oder Z-Bond-Verdampfer-Platine handeln, in die die Verdampferrohrschlange eingeprägt ist.The evaporator 1 assigned to the freezer compartment consists of a plate 2 which is used for Adaptation to the freezer compartment can be bent in a U-shape, as it is in EP 0 758 732 A2 is shown. With the plate 2, the evaporator coil can be in any To be connected wisely. The evaporator plate 2 can also be trade a roll or Z-bond evaporator board into which the evaporator coil is embossed.
Mit der Verdampferrohrschlange 3 ist die Saugrohrschlange 4 verbunden, die an
die den Normalkühlraum zugeordnete Kühl- und Entfeuchtungsplatte 5 angekoppelt
ist. Die Ankopplung kann durch einzelne nicht dargestellte Löt- oder Schweißpunkte
oder aber auch durch eine Verklammerung mit aus der Platte 5 herausgebogenen
Zungen erfolgen. In dem Saugrohr 4 verläuft in der strich-punktiert angedeuteten
Weise das Kapillarrohr 6, das an der Einspritzstelle 7 in den geraden Abschnitt 8
des Verdampferrohrs mündet. Das Ende der an den geraden Verdampferrohrabschnitt
anschließenden Rohrschlange mündet in der dargestellten Weise in das
Saugrohr 4.With the
In dem Schnitt A-A ist der Verlauf des Kapillarrohrs 6 in dem Saugrohr 4 dargestellt.Section A-A shows the course of the capillary tube 6 in the
Claims (1)
dadurch gekennzeichnet,
daß der den Verdampfer (1) bildende Rohrabschnitt (3, 8) nur dem Tiefkühlfach und dem Normalkühlraum eine Kühl- und Entfeuchtungsplatte (5) zugeordnet ist, die in wärmeleitender Verbindung zumindest mit Teilen oder Abschnitten des von dem Verdampfer (1) des Tiefkühlfachs zu dem Kompressor verlaufenden Saugrohr (4) ist, in dem zumindest über einen Teil seiner Länge das Kapillarrohr (6) verläuft.Refrigerator with a normal cold room and a freezer compartment, in which the compressor provided with a control device introduces the refrigerant via a capillary tube (6) into a tube section (8, 3) which is assigned to the evaporator (1) of the freezer compartment,
characterized,
that the tube section (3, 8) forming the evaporator (1) is assigned only to the freezer compartment and the normal cooling space, a cooling and dehumidifying plate (5), which is in heat-conducting connection with at least parts or sections of the evaporator (1) of the freezer compartment the suction tube (4) running in the compressor, in which the capillary tube (6) extends at least over part of its length.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29716572U DE29716572U1 (en) | 1997-09-15 | 1997-09-15 | Refrigerator with a normal cold room and a freezer compartment |
| DE29716572U | 1997-09-15 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0902244A2 true EP0902244A2 (en) | 1999-03-17 |
| EP0902244A3 EP0902244A3 (en) | 2000-02-02 |
| EP0902244B1 EP0902244B1 (en) | 2004-10-13 |
Family
ID=8046028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98109791A Expired - Lifetime EP0902244B1 (en) | 1997-09-15 | 1998-05-28 | Refrigeration apparatus with a cooling space and a freezing compartment |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0902244B1 (en) |
| DE (2) | DE29716572U1 (en) |
| ES (1) | ES2229412T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963422A (en) * | 2010-10-08 | 2011-02-02 | 合肥美的荣事达电冰箱有限公司 | Refrigerating device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0758732A2 (en) | 1995-08-16 | 1997-02-19 | Liebherr-Hausgeräte Gmbh | Refrigerator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1401687A1 (en) * | 1960-07-13 | 1969-03-27 | Rubanox | Arrangement for the circulation of a flow medium, in particular refrigerant |
| DD107771A1 (en) * | 1973-03-05 | 1974-08-12 | ||
| DE2506750C2 (en) * | 1975-02-18 | 1985-01-31 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Refrigerated cabinets, especially two-temperature refrigerators |
| DE9116265U1 (en) * | 1991-06-22 | 1992-09-03 | Krupp Vdm Gmbh, 5980 Werdohl, De | |
| DE4141641A1 (en) * | 1991-12-17 | 1993-06-24 | Bosch Siemens Hausgeraete | SECOND TEMPERATURE REFRIGERATOR |
| DE29504538U1 (en) * | 1995-03-16 | 1995-05-18 | Bosch Siemens Hausgeraete | Evaporator arrangement, in particular compressor-operated household refrigeration devices |
-
1997
- 1997-09-15 DE DE29716572U patent/DE29716572U1/en not_active Expired - Lifetime
-
1998
- 1998-05-28 DE DE1998512111 patent/DE59812111D1/en not_active Expired - Fee Related
- 1998-05-28 ES ES98109791T patent/ES2229412T3/en not_active Expired - Lifetime
- 1998-05-28 EP EP98109791A patent/EP0902244B1/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0758732A2 (en) | 1995-08-16 | 1997-02-19 | Liebherr-Hausgeräte Gmbh | Refrigerator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963422A (en) * | 2010-10-08 | 2011-02-02 | 合肥美的荣事达电冰箱有限公司 | Refrigerating device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59812111D1 (en) | 2004-11-18 |
| DE29716572U1 (en) | 1997-12-04 |
| EP0902244A3 (en) | 2000-02-02 |
| EP0902244B1 (en) | 2004-10-13 |
| ES2229412T3 (en) | 2005-04-16 |
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