EP2126488A2 - Kältegerät mit einem eisbereiter - Google Patents
Kältegerät mit einem eisbereiterInfo
- Publication number
- EP2126488A2 EP2126488A2 EP07847448A EP07847448A EP2126488A2 EP 2126488 A2 EP2126488 A2 EP 2126488A2 EP 07847448 A EP07847448 A EP 07847448A EP 07847448 A EP07847448 A EP 07847448A EP 2126488 A2 EP2126488 A2 EP 2126488A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- ice
- temperature
- refrigerating appliance
- cold
- 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
Links
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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/08—Producing ice by immersing freezing chambers, cylindrical bodies or plates into water
-
- 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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/18—Producing ice of a particular transparency or translucency, e.g. by injecting air
-
- 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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C2400/00—Auxiliary features or devices for producing, working or handling ice
- F25C2400/10—Refrigerator units
-
- 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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C2400/00—Auxiliary features or devices for producing, working or handling ice
- F25C2400/14—Water supply
-
- 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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C2700/00—Sensing or detecting of parameters; Sensors therefor
- F25C2700/14—Temperature of water
Definitions
- the invention relates to a refrigerator according to the preamble of claim 1.
- cold fingers dip into a certain volume of water, which is usually in a shell. These cold fingers have a temperature below the freezing point on the surface. The water begins to freeze on the cold fingers and successively build up a layer of ice around the cold finger. As the use of cold fingers in the water volume enters cold, comes within the water volume to form layers that have different temperatures and therefore different densities. These layers and densities lead to the fact that the freezing process of the clear ice is undefined and thus can not be ruled out that further Eiskristallisationskeime form in the water near the cold finger. The freezing process in the ice layer is therefore uncontrolled and thus forms cloudy ice. To avoid this formation of a cloudy ice, the water is mechanically, usually by means of stirrer, moves, which are connected to an electric motor.
- the invention is therefore based on the object to equip a refrigeration device with a Klareisrer that noise and vibration can be avoided and the components used have little or no susceptibility to interference.
- the object is achieved according to the invention by a refrigerator with the features of claim 1.
- the water in the shell at least in places, a temperature of more than 12 ° C. If now the cold fingers; which have a temperature below the freezing point, come into contact with this tempered water, is due to the temperature difference convection. This convection causes a circulation in the water. The water on the cold fingers is cooled and sinks towards the ground. By this cold water displaced warmer water rises to the top. Thus, there is a water circulation, which is the stronger, the more the temperature differs between the cold fingers and the surrounding water. Due to the low temperature, an ice layer forms on the cold fingers, which grows into the warmer water.
- the water which is supplied to the dish for clarification has a temperature above 12 ° C
- the water is heated in an advantageous manner by a heater.
- This heater could be located near the bottom of the shell into which the cold fingers dip. The water circulation in the shell is then driven not only by the cooling of the water to the cold fingers, but in addition by the heating of the heater.
- the heater could also be thermally conductively connected to the outside of the shell.
- the heater is located in a separate water tank.
- the water is heated to a certain temperature and then pumped into the shell, in which the clear ice is prepared.
- This water tank preferably has a water connection equipped with level sensor, so that there is always enough water in the water tank.
- a temperature sensor is advantageously provided in the water tank.
- This temperature sensor now makes it possible, with the help of a controller, not only to determine the temperature of the water, but also to switch the heating elements so that, after reaching the predetermined water temperature, this temperature can be kept within narrow limits.
- the water temperature is between 15 ° C and 30 0 C. An increase in the water temperature above 30 0 C must be avoided due to energetic considerations. Also, at temperatures exceeding 30 ° C, the minerals dissolved in the water begin to precipitate. This in turn would lead to a clouding of the ice.
- a temperature in the water of the water tank of less than 15 ° C causes the water, after it has been pumped into the shell for clarification, not be able to sustain the convection long enough. As a result, when convection has almost come to a standstill, the growth of the ice layer is uncontrolled and turbidity forms in the clear ice.
- the water temperature which is kept in the water tank, made dependent on the mineral content of the water used.
- the mineral content of a water can be determined on the one hand on the conductivity of the water and is defined on the other hand on the total hardness of the water.
- the water hardness must be determined and adjusted accordingly for the installation of the refrigerator, preferably on the control of Klareishneers. This controller then selects the temperature to which the water in the water tank is heated.
- the setting of the water temperature can also be fully automatic.
- the conductivity of the water can be measured by electrodes that are located in the water tank. The values determined here can then be transmitted directly to the controller which calculates the temperature from which the water must be heated.
- the temperature at the cold fingers is not less than -6 0 C.
- a lower temperature causes the formation of ice runs uncontrolled, since the water cools around the cold fingers too fast. As already described above in another context, this leads at least to unwanted cloudy spots in the clear.
- the temperature at the cold fingers is not more than -2 ° C.
- a temperature of more than -2 ° C causes the already acting as an isolator, already formed ice layer on its outside can not be cooled below freezing. As a result, the ice layer would not continue to grow. This effect occurs before the clear ice has reached a usable size.
- Fig. 1 shows schematically a refrigerator with a refrigerator compartment, ice maker and
- Fresh water tank and Fig. 2 is a schematic drawing of the fresh water tank and the ice maker
- FIG. 1 shows a refrigerator 1 with an open door 2 and an interior 3.
- the interior 3 is divided into a refrigerator 4 and a freezer 5.
- the refrigerator 4 is usually adjustable by at least one height Shelf 6 divided.
- In the refrigerator 4 is an icemaker. 7
- the ice maker 7 is divided into a technology module 8, an ice tray 9 and a water tank designed as a fresh water tank 10.
- the fresh water tank 10 may also be located outside of the cooled interior 3.
- FIG. 2 shows schematically the ice maker with technology module 8 and fresh water tank 10.
- the fresh water tank 10 is filled with drinking water 1 1, which is supplied to the fresh water tank 10 via a fresh water line 12.
- a level switch 13 and a fresh water valve 14 are connected to an ice maker control 19. When a certain level is reached in the fresh water tank 10, the fresh water valve 14 is closed due to the information provided by the level switch 13 information.
- the fresh water tank 10 can be completely emptied if necessary via a sewer line 15.
- the wastewater valve 16 is actuated.
- This waste water valve 16 is also connected to the ice maker control 19.
- an electric heater 17 which heats the drinking water 1 1 to a predetermined temperature.
- the temperature depends on the mineral content of the drinking water 1 1. The higher the mineral content in drinking water 1 1, the more the drinking water 1 1 must be heated.
- the temperature level is preferably between 15 ° C and 30 0 C. An increase in the temperature of the drinking water 1 1 above 30 0 C leads to a precipitation of minerals.
- the temperature that currently has the drinking water 1 1 is detected by a temperature sensor 18 and forwarded to the ice maker control 19, which then controls the electric heater 17 accordingly.
- the tempered drinking water 1 1 is by means of a pump 20 via the Connecting line 21 promoted in the ice maker tray 22 of the technology module 8.
- the pump 20 is driven by the ice maker control 19.
- dip cold fingers 23 which preferably have a temperature of -2 ° C to -6 ° C, wherein this temperature is maintained with great accuracy at the surface of the cold finger 23.
- the temperature difference between the cold fingers 23 and the tempered water which is preferably between 20 0 C and 30 0 C, generates sufficient convection in the area of the cold finger 23 to reliably avoid the emergence of turbid spots in the ice cubes 24.
- the clear ice cubes 23 are deposited after their preparation in the ice tray 9 and are ready for removal.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Production, Working, Storing, Or Distribution Of Ice (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006061090A DE102006061090A1 (de) | 2006-12-22 | 2006-12-22 | Kältegerät mit einem Eisbereiter |
PCT/EP2007/062923 WO2008077710A2 (de) | 2006-12-22 | 2007-11-28 | Kältegerät mit einem eisbereiter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2126488A2 true EP2126488A2 (de) | 2009-12-02 |
EP2126488B1 EP2126488B1 (de) | 2011-03-09 |
Family
ID=39431660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07847448A Not-in-force EP2126488B1 (de) | 2006-12-22 | 2007-11-28 | Kältegerät mit einem eisbereiter |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2126488B1 (de) |
AT (1) | ATE501406T1 (de) |
DE (2) | DE102006061090A1 (de) |
ES (1) | ES2360377T3 (de) |
RU (1) | RU2447375C2 (de) |
WO (1) | WO2008077710A2 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010099454A2 (en) | 2009-02-28 | 2010-09-02 | Electrolux Home Products, Inc. | Method and apparatus for making clear ice |
DE102010003828A1 (de) | 2010-04-09 | 2011-10-13 | BSH Bosch und Siemens Hausgeräte GmbH | Verfahren und Vorrichtung zum Erzeugen von Eisstücken und Kältegerät, insbesondere Haushaltskältegerät mit einer solchen Vorrichtung |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2291826A (en) * | 1934-07-30 | 1942-08-04 | Muffly Glenn | Refrigerating mechanism |
GB498412A (en) * | 1937-07-08 | 1939-01-09 | Reinhard Emil Wilhelm Wussow | Improvements in and relating to processes and apparatus for the production of ice and for cooling liquids |
US3146606A (en) * | 1961-09-06 | 1964-09-01 | Whirlpool Co | Apparatus for making clear ice bodies |
US5187948A (en) * | 1991-12-31 | 1993-02-23 | Whirlpool Corporation | Clear cube ice maker |
RU2161760C2 (ru) * | 1998-05-08 | 2001-01-10 | Рубцов Евгений Юрьевич | Льдогенератор |
KR20040039090A (ko) * | 2002-10-31 | 2004-05-10 | 삼성광주전자 주식회사 | 제빙기 |
KR100507929B1 (ko) * | 2002-12-10 | 2005-08-17 | 삼성광주전자 주식회사 | 제빙기 |
DE10336834A1 (de) * | 2003-08-11 | 2005-03-17 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit Eisbereiter |
-
2006
- 2006-12-22 DE DE102006061090A patent/DE102006061090A1/de not_active Withdrawn
-
2007
- 2007-11-28 ES ES07847448T patent/ES2360377T3/es active Active
- 2007-11-28 WO PCT/EP2007/062923 patent/WO2008077710A2/de active Application Filing
- 2007-11-28 EP EP07847448A patent/EP2126488B1/de not_active Not-in-force
- 2007-11-28 RU RU2009124107/13A patent/RU2447375C2/ru not_active IP Right Cessation
- 2007-11-28 DE DE502007006704T patent/DE502007006704D1/de active Active
- 2007-11-28 AT AT07847448T patent/ATE501406T1/de active
Non-Patent Citations (1)
Title |
---|
See references of WO2008077710A3 * |
Also Published As
Publication number | Publication date |
---|---|
EP2126488B1 (de) | 2011-03-09 |
WO2008077710A3 (de) | 2008-09-18 |
WO2008077710A2 (de) | 2008-07-03 |
RU2009124107A (ru) | 2011-02-10 |
ATE501406T1 (de) | 2011-03-15 |
ES2360377T3 (es) | 2011-06-03 |
DE102006061090A1 (de) | 2008-06-26 |
RU2447375C2 (ru) | 2012-04-10 |
DE502007006704D1 (de) | 2011-04-21 |
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