EP2113059A2 - Kältegerät mit wassertank - Google Patents
Kältegerät mit wassertankInfo
- Publication number
- EP2113059A2 EP2113059A2 EP07821964A EP07821964A EP2113059A2 EP 2113059 A2 EP2113059 A2 EP 2113059A2 EP 07821964 A EP07821964 A EP 07821964A EP 07821964 A EP07821964 A EP 07821964A EP 2113059 A2 EP2113059 A2 EP 2113059A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- tank
- refrigerating appliance
- appliance according
- interior
- cavity
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000005057 refrigeration Methods 0.000 title abstract description 11
- 230000001276 controlling effect Effects 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000011796 hollow space material Substances 0.000 abstract 2
- 238000001816 cooling Methods 0.000 description 6
- 239000013505 freshwater Substances 0.000 description 6
- 238000005192 partition Methods 0.000 description 6
- 238000007710 freezing Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 239000003651 drinking water Substances 0.000 description 3
- 235000020188 drinking water Nutrition 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 206010060800 Hot flush Diseases 0.000 description 1
- 206010021113 Hypothermia Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002631 hypothermal effect Effects 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
- F25D23/126—Water cooler
-
- 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
- F25D23/02—Doors; Covers
- F25D23/028—Details
-
- 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
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/122—General constructional features not provided for in other groups of this subclass the refrigerator is characterised by a water tank for the water/ice dispenser
-
- 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/16—Sensors measuring the temperature of products
Definitions
- the present invention relates to a refrigerator having a heat-insulated interior and a water tank separated from the interior by an insulating layer. Refrigeration appliances with such a water tank, which supplies a tapping point located outside the appliance with chilled drinking water, are becoming increasingly popular with consumers.
- the water in such a tank must never freeze, on the one hand, because the expansion of the water associated with the freezing could destroy the tank, on the other hand, because no water can be tapped from an iced tank.
- the water tank must therefore not have too close thermal contact with an interior, if this can be cooled to temperatures below 0 0 C.
- Such a conventional refrigeration device can therefore not be made uniform for different climates.
- Manufacturing models that differ in the ratio of insulation layer thicknesses on either side of the water tank requires increased manufacturing effort, and also presents a troublesome constraint to the user when the device he receives is useful only in a limited range of ambient temperatures ,
- the need to isolate the water tank against the interior of the refrigerator to the fact that if after draining of water from the tank fresh water flows from ambient temperature, it takes a long time to cool this fresh water.
- Object of the present invention is to provide a refrigeration device that can be used under highly variable ambient temperatures.
- This object is achieved, on the one hand, by forming a cavity in a refrigerator with a heat-insulated interior and a water tank separated from the interior by an insulating layer on a side of the insulating layer facing the water tank, and that at least one passage of the insulating layer , which connects the cavity to the interior, is arranged an air exchange over the passage controlling element.
- the thickness of the insulating layer between the interior and the water tank so that even at low ambient temperatures, a freezing of the tank contents is excluded, while at the same time the air exchange through the passage through the controlling element is limited to a low value. If, under such conditions, the cooling of the water in the tank is no longer sufficient, the element can be controlled in order to effect an increased exchange of air and thus an increased cooling of the tank.
- Another advantage of this refrigerator is that even if the temperature of the water tank is increased due to a recent influx of fresh water, the air exchange with the interior can be increased to cool the fresh water quickly.
- the air exchange controlling element may for example be a fan, through the operation of the air exchange is actively promoted.
- a flap or another element which modulates the free cross section of the passage and in the open state permits air exchange driven in another way, for example by convection, and essentially prevents it in the closed or at least narrowed state.
- the cavity is connected to the interior through a plurality of passages, wherein then at least one of these passages air from the interior into the cavity and through another passage can flow back into the interior. Effective control of the air exchange is also possible if at least one of these passages does not have an air exchange controlling element.
- the several passages expediently at the same height in the interior.
- the cavity comprises a plurality of each communicating at an upper end with each other chambers.
- the passages then each preferably open onto a lower end of the chambers.
- ribs may serve, which protrude from a wall of the tank. These ribs simultaneously increase the surface area on which heat exchange between the tank and the air in the cavity is possible and thus accelerate the cooling of the tank contents.
- the cavity and the tank are separated by a housing from the insulating layer.
- the housing also prevents moisture from the circulating air from precipitating in the insulating layer. Furthermore, the separation of the tank from the insulating layer improves the ease of repair of the device.
- the cavity articulated ribs can also protrude from a wall of the housing. As each passage is directed downwards towards the interior, hot air remains trapped in the cavity, unless the air exchange is driven by external energy, in particular by the fan.
- the operation of the element controlling the air exchange is expediently regulated by a temperature sensor arranged on the water tank.
- the above-mentioned object is further achieved by providing an electric heater to the tank in a refrigeration appliance having a heat-insulated interior and a water tank which is separated from the surroundings by an insulating layer and in heat exchange with the interior, in particular a refrigeration appliance as defined above is arranged.
- the electric heater can prevent freezing of the tank even if it is well insulated from the environment.
- the operation of the heater is suitably regulated by a temperature sensor arranged on the water tank.
- a control circuit which operates the heating when the temperature detected by the temperature sensor exceeds a first threshold, and which actuates the air exchange controlling element to promote the exchange of air when the detected temperature falls below a second threshold.
- the limit values can be in particular +10 and + 2 ° C.
- the heater and the cavity are conveniently located on opposite sides of the tank to minimize heat flow from the heater to the interior.
- the temperature sensor is preferably attached to an outer surface of the tank.
- a simple mounting of the temperature sensor with simultaneous close thermal contact with the tank allows a pocket attached to the outer surface of the tank into which the temperature sensor is inserted.
- the temperature sensor is preferably located adjacent to a highest point of the tank. Since water is at its highest density at 4 ° C, both the warmest water, when the tank is too warm, and the coldest water, when too cold, are near its highest point, and so can one and the other be detected the same temperature sensor.
- FIG. 1 shows a schematic section through an inventive refrigeration device with a mounted in a niche of the door water tank.
- FIG. 2 shows a section through a housing of the niche along a plane designated by II in FIG. 1;
- FIG. 3 shows a section along the plane designated III in FIG. 2 according to a first embodiment of the invention
- Fig. 4 is a view of the front of the water tank
- Fig. 5 is a modification of the water tank of Fig. 4;
- FIG. 6 is a perspective view of the water tank according to a second embodiment of the invention.
- Fig. 7 shows a variant of the water tank shown in Fig. 6.
- Fig. 1 shows a schematic section through a refrigeration device with water tank according to the present invention.
- the refrigerator shown may be a freezer or the freezer compartment of a side-by-side combination appliance.
- the walls of the body 1 and door 2, which enclose the interior 3 of the device are realized in a conventional manner in each case with a solid outer skin and inner skin, which enclose a gap filled with insulating synthetic resin.
- the inner skin 4 of the door 2 is molded in one piece from plastic and has in a central region a projecting into the interior 3 projection 5.
- the outer skin is composed of a substantially flat front panel 6, which is here shown disguised with a furniture panel 7, and in which a central window is cut, and a substantially cuboid, open at the front, molded plastic injection-molded housing 8, which engages in the projection 5 of the inner skin 4 and the window of the front panel 6 fills.
- Two steps 9 on the bottom and top wall of the housing 8 divide the niche formed in its interior into an inner region 10 and an outer, open towards the front of the device area 1 1.
- the inner region 10 is inserted through a front of the housing. 8 inserted, applied to the steps 9 heat-insulating plate 12 is substantially closed.
- a water tank 13 is housed.
- Lines 14 and 15 connect the water tank 13 on the one hand to the drinking water network and on the other hand with a tap 16 in the outer region 1 1 of the housing 8. Between a back of about cuboid water tank 13 and a rear wall of the housing 8 is a cavity 17. Several Passages 18, of which only one can be seen in the section of FIG. 1, connect the cavity 17 to the interior 3.
- an automatic ice maker 19 In the interior 3 there are an automatic ice maker 19 and a reservoir 20, in which the ice maker 19 outputs finished pieces of ice.
- Dispensing opening of the reservoir 20 is located above a shaft 21 which extends through the wall of the door 2 and opens at the ceiling of the outer region 1 1 in the housing 8.
- a container placed in the outer region 11 can be filled with both cooled water from the tank 13 and ice pieces from the reservoir 20.
- Fig. 2 shows a section through the housing 8 at the level of its inner region 10 along the plane designated in Fig. 1 with Il. It can be seen in this section three pipe sockets 22, 22, 23 which are integrally formed on the housing 8 and form walls which delimit the passages 18 of the housing 8 surrounding, not shown in the figure insulating material.
- the two narrower, each outer pipe socket 22 are empty, as can be seen in Fig. 3, which shows a section along the plane III of Fig. 2.
- a fan 24 is mounted in the middle pipe socket 23 . Of the Fan 24 is used to drive an air flow from the middle pipe socket
- Fig. 3 which shows a section through the housing 8 along the line III in Fig. 2, open the pipe socket 22, 23 at the same height in the interior 3.
- the opening into the interior 3 openings of the pipe socket 22nd , 23 are lower than the cavity 17, so that when the fan 24 is turned off, air that heats up in the cavity 17, does not flow into the interior space 3.
- the cavity 17 is bounded to the front or to the right in Fig. 3 by a substantially flat in this embodiment, the rear wall 28 of the water tank 13.
- a temperature sensor 29 can be seen in a at the top of the Tanks molded pocket 36 is inserted.
- the temperature sensor 29 is placed so that it measures the temperature of the water, which is in close proximity to an outlet port 30 of the tank 13, at the upper end of a riser, which in the interior of the tank through a from the top to just above the Bodens extending, shown in Fig. 3 in plan view of the partition wall 31 is limited.
- the line 15 is attached on the outlet port 30, the line 15 is attached.
- an electric heater here in the form of a glued foil heater 32, attached.
- control circuit which may be housed, for example, in an operating assembly 34 which, as shown in Fig. 1, mounted in the outer region 11 of the housing 8 on the ceiling and carries user-operable buttons 35 for controlling the dispensing of water and / or ice.
- the control circuit monitors the temperature sensed by the sensor 29 and turns on the fan 24 when the sensed temperature exceeds an upper limit of, for example, 10 °, turns it off again when the temperature reaches a lower, second threshold, for example 6 ° C falls below the heater 42 when falling below a third threshold of, for example, 2 ° C and when exceeding a between the second and the third limit lying fourth limit of for example 4 ° C again. So on the one hand it is ensured that despite possibly variable ambient temperature, the water in the tank 13 reaches a reasonably constant low temperature without freezing, and it is a rapid cooling of fresh water ensures that flows after tapping a larger amount of water in the tank 13.
- Fig. 4 shows a perspective view of the tank 13 according to a preferred development of the invention. Notwithstanding an exact cuboid shape, the upper side 37 of the tank is slightly sloping in the width direction, wherein the outlet flange 30 extends from the higher edge of the upper side 37 and an inlet pipe 38 extends from the lower edge.
- the vertical partition 31 in the interior of the tank 13 is shown as a dashed outline, as well as a plurality of horizontal walls 39, each alternately interlocking emanating from the septum 31 and the side facing away from the viewer side wall of the tank 13.
- a small passage opening 41 is formed directly at the upper end thereof, through which air trapped in the region 40 of the tank can rise and reach the outlet connection piece 30. This ensures safe venting of the tank 13.
- the Foil heater 32 has an L-shaped configuration with a riser heating vertical leg and a bottom portion of the tank heated horizontal leg.
- FIG. 5 shows a modified embodiment of the tank, in which the pocket 36 introduced into the upper side of the tank is replaced by a laterally arranged pocket 43, which is essentially formed by an elastic film adhered or welded along a line 44 to the tank 13 ,
- the film which is provided with a heat-insulating layer, holds a plate-shaped temperature sensor (not shown) firmly pressed against the side wall of the tank.
- Fig. 6 shows a perspective view of the tank 13, seen from the back thereof, according to a second embodiment of the invention.
- partitions 45 the cavity 17 as shown in Fig. 2, divided into middle and outer chambers 26, 27, 27 integrally formed on the rear wall 28 of the tank 13.
- the partitions 45 thus increase the surface area which is available to the tank 13 for heat exchange with air circulating in the cavity 17, thus enabling a faster cooling of the tank contents.
- FIG. 7 A further development of this idea is shown in FIG. 7, in which again a perspective view of the tank 13 is shown.
- the chambers 26, 27, 27, which form the cavity 17, are here designed as recessed into the body of the tank grooves, each bounded by hollow ribs 46.
- a particularly rapid heat exchange with tank contents is possible, which is located inside the hollow ribs 46.
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)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Physical Water Treatments (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006052445A DE102006052445A1 (de) | 2006-11-07 | 2006-11-07 | Kältegerät mit Wassertank |
PCT/EP2007/061607 WO2008055800A2 (de) | 2006-11-07 | 2007-10-29 | Kältegerät mit wassertank |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2113059A2 true EP2113059A2 (de) | 2009-11-04 |
EP2113059B1 EP2113059B1 (de) | 2011-03-23 |
Family
ID=39264947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07821964A Active EP2113059B1 (de) | 2006-11-07 | 2007-10-29 | Kältegerät mit wassertank |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2113059B1 (de) |
CN (1) | CN101535752B (de) |
AT (1) | ATE503160T1 (de) |
DE (2) | DE102006052445A1 (de) |
ES (1) | ES2361130T3 (de) |
WO (1) | WO2008055800A2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014214322A1 (de) | 2014-07-23 | 2016-01-28 | BSH Hausgeräte GmbH | Kältegerät mit Flüssigkeitstank |
DE102015226561A1 (de) * | 2015-12-22 | 2017-06-22 | BSH Hausgeräte GmbH | Kältegerät mit elektrischer Heizeinrichtung |
DE102016002224A1 (de) * | 2016-02-10 | 2017-08-10 | Liebherr-Hausgeräte Ochsenhausen GmbH | Gefriergerät |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4970871A (en) * | 1989-06-15 | 1990-11-20 | The Coca-Cola Company | Carbonator refrigeration system |
US5484538A (en) | 1993-09-14 | 1996-01-16 | Texavia International, Inc. | Multiple service water purifier and dispenser and process of purifying water |
CA2482383C (en) * | 2003-10-06 | 2012-05-15 | Lg Electronics Inc. | Heater controller and heater control method of refrigerator |
WO2005052477A1 (en) | 2003-11-28 | 2005-06-09 | Lg Electronics Inc. | Refrigerator having dispenser |
-
2006
- 2006-11-07 DE DE102006052445A patent/DE102006052445A1/de not_active Withdrawn
-
2007
- 2007-10-29 ES ES07821964T patent/ES2361130T3/es active Active
- 2007-10-29 WO PCT/EP2007/061607 patent/WO2008055800A2/de active Application Filing
- 2007-10-29 DE DE502007006810T patent/DE502007006810D1/de active Active
- 2007-10-29 EP EP07821964A patent/EP2113059B1/de active Active
- 2007-10-29 AT AT07821964T patent/ATE503160T1/de active
- 2007-10-29 CN CN2007800412546A patent/CN101535752B/zh active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2008055800A2 * |
Also Published As
Publication number | Publication date |
---|---|
ATE503160T1 (de) | 2011-04-15 |
WO2008055800A3 (de) | 2009-03-05 |
ES2361130T3 (es) | 2011-06-14 |
WO2008055800A2 (de) | 2008-05-15 |
CN101535752B (zh) | 2011-10-05 |
DE102006052445A1 (de) | 2008-05-08 |
CN101535752A (zh) | 2009-09-16 |
DE502007006810D1 (de) | 2011-05-05 |
EP2113059B1 (de) | 2011-03-23 |
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