EP0602371B1 - Kühlgerät mit einem wärmeisolierten Gehäuse - Google Patents
Kühlgerät mit einem wärmeisolierten Gehäuse Download PDFInfo
- Publication number
- EP0602371B1 EP0602371B1 EP19930117883 EP93117883A EP0602371B1 EP 0602371 B1 EP0602371 B1 EP 0602371B1 EP 19930117883 EP19930117883 EP 19930117883 EP 93117883 A EP93117883 A EP 93117883A EP 0602371 B1 EP0602371 B1 EP 0602371B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- refrigerant
- evaporators
- evaporator
- reservoir
- 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.)
- Expired - Lifetime
Links
- 239000003507 refrigerant Substances 0.000 claims description 76
- 238000001816 cooling Methods 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000005057 refrigeration Methods 0.000 description 15
- 239000007788 liquid Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
Images
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
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
-
- 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2511—Evaporator distribution valves
-
- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/04—Refrigerators with a horizontal mullion
Definitions
- the invention relates to a cooling device according to the preamble of claim 1.
- a refrigeration system emerges, which in essentially from a compressor, a condenser and two used to generate different temperatures Evaporator is formed.
- the refrigerant inflow to these two evaporators for example one in one Freezer and the other in a refrigerator of a household refrigerator is arranged via an electromagnetic operated 3/2-way valve controlled, the switching this valve, of which in one refrigeration cycle lying evaporator on the lying in the other refrigeration cycle Evaporator by one in the compartments different Temperature arranged thermostat initiated becomes.
- the temperature zones realized with two individual evaporators can with such an arrangement by the optionally loading of one of the evaporators with refrigerant with regard to their temperatures, independent be regulated by the other temperature zone.
- a refrigerator which two in parallel Evaporators arranged with respect to one another and having a different cooling capacity owns. These are on the output side with one that holds refrigerants Reservoir connected to which evaporator of higher power towards the inflow Shut-off valve is upstream.
- the disadvantage of this arrangement is that the evaporation of the refrigerant in the evaporator with higher cooling capacity takes place very slowly, so that the entire amount of refrigerant in the refrigeration system only long after closing of the shut-off valve is available to the evaporator with lower cooling capacity.
- the invention has for its object a cooling device according to the preamble of claim 1 to create, in each of the actively switched refrigerant circuit the entire amount of refrigerant in the refrigerant system is available.
- the solution according to the invention makes the cooling of the compartments different
- the compressor runtimes required for temperatures are minimized, since the full one is always in the refrigeration system available refrigerant quantity is available, which on the one hand reduces energy consumption the system is significantly reduced and on the other hand in the event that a cooling device with the inventive refrigeration system is installed in a living room, the noise causing compressor run is limited in time.
- the reservoir is colder than the evaporators and that the evaporators are with Refrigerant channels are equipped, the channel course of the injection point of the of the respective evaporator starting from the bottom of the evaporator to your exits and freely arranged of siphon-like structures.
- the solution according to the invention also easily achieves that the refrigerant flowing out of the inactive evaporator as a result of the on the Gravity acting on refrigerant without using any feed pumps is fed to the common reservoir, so that it is the actively switched Evaporator part is immediately available.
- the flow of refrigerant from the evaporators to the is particularly simple Reservoir led if after a further advantageous embodiment of the object the invention provides that the refrigerant channels of the evaporator on the output side in a common refrigerant channel are summarized, which in the opposite the Exits of the evaporator lower-lying reservoir opens.
- the reservoir has an inflow and an outflow opening facing each other are arranged offset in height, the higher-lying drain opening fluidly connected to the compressor is.
- the invention provides that on the evaporator with the lowest cooling capacity for cooling the compartments serving refrigerant amount is coordinated.
- a valve arrangement is particularly expedient and space-saving to control the refrigerant flow to the respective Evaporator, if according to a further advantageous embodiment the subject of the invention is provided that the valve assembly as an electromagnetically operated 3/2-way valve is formed, by which the temperature controlled in the various subjects evaluating controller unit is.
- the invention provides that the 3/2-way valve with simultaneous cold requests from different compartments Temperature is switched cyclically.
- This solution is characterized in that Equal treatment of the two subjects with different temperatures not one of the compartments gets too warm while the other is charged with refrigerant to cool it.
- a household refrigerator 10 is shown, the thermally insulated housing 11 at its opening with at the opening edge hinged doors that can be opened separately 12 and 13 is closed.
- the doors 12 and 13 are thermal separate, unspecified subjects different temperature accessible, their fan temperature with the help of a refrigeration system described below 14 is maintained.
- the refrigeration system 14 two refrigerant circuits I and II, which by a common refrigerant compressor 15 with liquid Refrigerants are supplied.
- the refrigerant compressor 15 is a condenser on the pressure side in a conventional manner 16 connected downstream, its output via a line section 17 is connected to a dryer cartridge 18.
- a line section 19 leads from the dryer cartridge 18 path, which opens into a valve assembly 20, which is electromagnetic operated, 3/2-way valve is formed.
- Each of the evaporators 32 and 33 is for the purpose of its flow with refrigerant, from its injection point to its exit with at least one continuous running refrigerant channel 34 or 35 equipped, the course of the canal is arranged falling and free of siphon-like, liquid refrigerant structures is. Falling channel course is to be understood here that the refrigerant is infinitesimal in each other subsequent channel elements of the refrigerant channels 34 and 35 undergoes a height difference.
- the outputs of the two evaporators 32 and 33 are through a Refrigerant line 36 merged into a refrigerant line section 37 passes. This ends in an opposite the outputs of the evaporators 32 and 33, a reservoir for the refrigerant reservoir 38, which is integrated into the thermal insulation of the housing 11 is, whereby the reservoir 38 in both through the Valve arrangement 20 controllable refrigerant circuits I and II represents the coldest point.
- the reservoir 38 is part of both Refrigerant circuits I and II and has an inflow opening 39 and a drain opening 40, which are offset in height from each other are arranged, the inflow opening 39 into which the refrigerant channel 37 opens out, is lower than the drain opening 40 via a line piece 41 to the suction side of the refrigerant compressor 15 is connected.
- the reservoir 38 also horizontally, with a horizontal one Bottom surface may be arranged, but with the inflow opening 39 arranged closer to the bottom surface of the reservoir 38 than that of the suction side of the refrigerant compressor 15 facing drain opening 40.
- the reservoir 38 which acts on the phase.
- the collecting function of the reservoir 38 results from an overlay due to the difference in height between the evaporator outlet and the inlet opening 39 of the reservoir 38 caused potential difference and thus achieved Lowering effect of the reservoir 38 on the liquid refrigerant and the effect that the refrigerant is at the coldest Point condensed in the refrigeration cycle, the reservoir 38 by being embedded in the thermal insulation of the housing 11 represents this coldest place.
- the refrigeration cycle is therefore largely liquid, in 14 refrigerants available for the entire refrigeration system, be it in the event of the compressor restarting 15 or in the event of cyclical switching between both refrigerant circuits I and II at the same time Refrigeration requirement for both temperature zones, as a result the difference in height between the inlet and outlet opening of the Reservoirs 38 the liquid refrigerant from the reservoir gets carried away.
- Temperature sensor as the air temperature in the compartment Sensor is formed, so one of the ambient temperatures almost independent regulation of the compartment temperature reached. These sensors then provide the criteria for the Switching the valve assembly 20 and switching on or off of the compressor 15.
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)
Description
- Fig. 1
- ein Zweitemperaturen-Haushalts-Kühlgerät, dessen thermisch voneinander getrennte, übereinander angeordnete Fächer unterschiedlicher Temperatur mit separaten Türen verschließbar sind, in räumlicher Darstellung von vorne und
- Fig. 2
- in vereinfachter, schematischer Darstellung, die zur Aufrechterhaltung der Temperatur in den Fächern des Zweitemperaturen-Kühlgeräts eingesetzte Kälteanlage, mit ihren symbolisch dargestellten Elementen für die Temperaturregelung der Fächer.
Claims (7)
- Kühlgerät (10) mit einem wärmeisolierten Gehäuse (11) innerhalb welchem wenigstens zwei voneinander thermisch getrennte, eine unterschiedliche Temperatur aufweisende Fächer vorgesehen sind, von denen jedes mit einem Verdampfer (32, 33) ausgestattet ist, und einem gemeinsamen Kältemittelverdichter (15) zur Versorgung der Verdampfer mit Kältemittel, sowie einer Ventilanordnung (20), welche von einer auch den Verdichter steuernden Reglereinheit (21) gesteuert ist, und welche das Kältemittel jeweils einem der Verdampfer zuzuführen vermag, wobei die Notwendigkeit für Kältemittelzufuhr zu dem jeweiligen Verdampfer über in den Fächern angeordnete Temperaturfühler an die Reglereinheit signalisiert wird, dadurch gekennzeichnet, dass den zu Kühlzwecken mit Kältemittel beaufschlagten Verdampfern (32, 33) ein in Strömungsrichtung des Kältemittels vor dem Verdichter (15) liegendes gemeinsames Reservoir (38) nachgeschaltet ist, welches das Kältemittel desjenigen Verdampfers (32, 33) im Anschluss an eine Unterbrechung des Kältemittelzuflusses zu diesem Verdampfer (32, 33) aufzunehmen vermag, wobei die Verdampfer (32, 33) ausgangsseitig gegenüber dem Reservoir (38) höher liegen.
- Kühlgerät nach Anspruch 1, dadurch gekennzeichnet, dass das Reservoir (38) kälter als die Verdampfer (32, 33) ist und dass die Verdampfer (32, 33) mit Kältemittelkanälen (34, 35) ausgestattet sind, deren Kanalverlauf von der Einspritzstelle des jeweiligen Verdampfers (32, 33) ausgehend, bis hin zu ihren Ausgängen fallend angeordnet und frei von siphonartigen Strukturen sind.
- Kühlgerät nach Anspruch 2, dadurch gekennzeichnet, dass die Kältemittelkanäle (34, 35) der Verdampfer (32, 33) ausgangsseitig in einem gemeinsamen Kältemittelkanal (36) zusammengefasst sind, der in das gegenüber den Ausgängen der Verdampfer (32, 33) tiefer liegende Reservoir (38) mündet.
- Kühlgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Reservoir (38) eine Zuflussöffnung (39) und eine Abflussöffnung (40) aufweist, die zueinander höhenversetzt angeordnet sind, wobei die höherliegende Abflussöffnung (40) mit dem Verdichter (15) strömungstechnisch verbunden ist.
- Kühlgerät nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass auf dem Verdampfer (32, 33) mit der geringsten Kälteleistung die zur Kühlung der Fächer dienende Kältemittelmenge abgestimmt ist.
- Kühlgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Ventilanordnung (20) als ein elektromagnetisch betriebenes 3/2-Wegeventil ausgebildet ist, das von der die Temperatur in den verschiedenen Fächern auswertenden Reglereinheit (21) gesteuert ist.
- Kühlgerät nach Anspruch 6, dadurch gekennzeichnet, dass das 3/2-Wegeventil bei gleichzeitiger Kälteanforderung der Fächer unterschiedlicher Temperatur zyklisch umgeschaltet wird.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924242775 DE4242775A1 (de) | 1992-12-17 | 1992-12-17 | Kühlgerät mit einem wärmeisolierten Gehäuse |
| DE4242775 | 1992-12-17 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0602371A2 EP0602371A2 (de) | 1994-06-22 |
| EP0602371A3 EP0602371A3 (en) | 1994-07-27 |
| EP0602371B1 true EP0602371B1 (de) | 2001-04-18 |
Family
ID=6475649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19930117883 Expired - Lifetime EP0602371B1 (de) | 1992-12-17 | 1993-11-04 | Kühlgerät mit einem wärmeisolierten Gehäuse |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0602371B1 (de) |
| DE (2) | DE4242775A1 (de) |
| DK (1) | DK0602371T3 (de) |
| ES (1) | ES2155826T3 (de) |
| TR (1) | TR27681A (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4443591A1 (de) * | 1994-12-07 | 1996-06-13 | Bosch Siemens Hausgeraete | Kältegerät, insbes. Haushaltskältegerät |
| EP1030133B1 (de) * | 1999-02-19 | 2004-07-14 | Ranco Incorporated of Delaware | Kühl- und Gefrierfach kombinierende Kühlvorrichtung |
| DE19957719A1 (de) * | 1999-11-30 | 2001-05-31 | Bsh Bosch Siemens Hausgeraete | Kältegerät |
| DE102010015165A1 (de) * | 2010-04-16 | 2011-10-20 | Liebherr-Hausgeräte Ochsenhausen GmbH | Kühl- und/oder Gefriergerät |
| DE102012201399A1 (de) * | 2012-02-01 | 2013-08-01 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit zwei Lagerkammern |
| US10544979B2 (en) | 2016-12-19 | 2020-01-28 | Whirlpool Corporation | Appliance and method of controlling the appliance |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH506761A (it) * | 1968-05-02 | 1971-04-30 | Zanussi A Spa Industrie | Circuito frigorigeno per refrigerare due ambienti a due temperature diverse |
| DE2231769C3 (de) * | 1972-06-29 | 1979-12-06 | Vorwerk & Co Interholding Gmbh, 5600 Wuppertal | Verfahren sowie Vorrichtung zum Eingefrieren und sicheren Gefrierlagern von Gütern |
| US4840033A (en) * | 1988-06-20 | 1989-06-20 | Frick Company | Ice builder and control system therefor |
-
1992
- 1992-12-17 DE DE19924242775 patent/DE4242775A1/de not_active Withdrawn
-
1993
- 1993-11-04 ES ES93117883T patent/ES2155826T3/es not_active Expired - Lifetime
- 1993-11-04 EP EP19930117883 patent/EP0602371B1/de not_active Expired - Lifetime
- 1993-11-04 DE DE59310164T patent/DE59310164D1/de not_active Expired - Fee Related
- 1993-11-04 DK DK93117883T patent/DK0602371T3/da active
- 1993-11-12 TR TR105493A patent/TR27681A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK0602371T3 (da) | 2001-08-13 |
| DE59310164D1 (de) | 2001-05-23 |
| ES2155826T3 (es) | 2001-06-01 |
| EP0602371A3 (en) | 1994-07-27 |
| TR27681A (tr) | 1995-06-16 |
| DE4242775A1 (de) | 1994-06-23 |
| EP0602371A2 (de) | 1994-06-22 |
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