EP2504484A2 - Wasserführendes hausgerät und verfahren zum fördern von wasser in einem wasserführenden hausgerät - Google Patents
Wasserführendes hausgerät und verfahren zum fördern von wasser in einem wasserführenden hausgerätInfo
- Publication number
- EP2504484A2 EP2504484A2 EP10778983A EP10778983A EP2504484A2 EP 2504484 A2 EP2504484 A2 EP 2504484A2 EP 10778983 A EP10778983 A EP 10778983A EP 10778983 A EP10778983 A EP 10778983A EP 2504484 A2 EP2504484 A2 EP 2504484A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- water
- air
- domestic appliance
- pressure difference
- 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 143
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000010926 purge Methods 0.000 description 8
- 238000009423 ventilation Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/206—Heat pump arrangements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/24—Condensing arrangements
Definitions
- the invention relates to a water-bearing household appliance having a first container in which water is intended to be deposited, this partial air in the first container replaces a second container which is intended to store the water by this air present in the second container partially replaced, and connected to the first container and the second container water pipe through which the water from the first container to the second container is conveyed out.
- the invention also relates to a method for conveying water in such a household appliance.
- the interest is in particular a condensate dryer.
- a condensate dryer Such is known for example from the publication WO 2008/1 1961 1 A1. It uses a condensate water to clean a heat exchanger.
- the condensate water is obtained from the drying of wet laundry and collected in a tub, which is below the heat exchanger.
- the condensate water is led out of the tub to a water tank located above the heat exchanger. Then, the condensate water can be discharged from the water tank to the heat exchanger, namely, for example, by a sudden opening of a valve of the water tank.
- the condensate water in the bottom of a Kondensissetrockners because the heat exchanger in which the condensate water is formed from steam, which was formed by the action of warm process air on the laundry to be dried and discharged from the process air, is usually below the drum, in which the drying laundry is inserted, arranged.
- the condensate water is then to a water tank, which is easily accessible for an operator located above and arranged laterally of the drum, promoted, via a water pipe.
- a rotating pump is used for this purpose. This pump may be blocked by long hair and lint, and may cause the pump to fail. This circumstance is particularly disadvantageous in such a household appliance in which the condensate water tank and its surroundings for a Operator are not accessible. Mentioned at this point, for example, a condenser dryer with a heat pump.
- a water-conducting domestic appliance having a first container in which water is intended to be partly displaced, this second container intended for storing the water partially replacing the air present in the second container; and a water pipe connected to the first tank and the second tank, through which the water is conveyed from the first tank to the second tank, has means for generating a pressure difference between the air in the first tank and the air in the second tank, due to Pressure difference, the water is conveyed through the water line from the first container to the second container.
- a pressure difference is generated, due to which the water is sucked in via the water line to the second container.
- the water pipe can thus manage without a pump, as used in the prior art for conveying the water.
- the water is preferably conveyed to the water tank upwards.
- the water tank in the household appliance is preferably located above another container, from which the water is to be conveyed via the water pipe to the water tank.
- water in the present context is not to be understood as meaning a clear description of a chemical compound, but basically comprises any liquid that can usually be found in such a household appliance may contain dissolved or suspended constituents, for example detergent residues and lint, which were removed during drying of laundry items in the domestic appliance of these laundry items, have first deposited on any component of the domestic appliance and then taken up by the water incurred as condensate.
- dissolved or suspended constituents for example detergent residues and lint
- air any mixture of gases which can usually be found in an environment and inside a domestic appliance, rather than just a specific mixture of nitrogen, oxygen, carbon dioxide and some others, only in traces of existing gases.
- the first container is open to an environment of the domestic appliance, and the means are intended for generating a negative pressure relative to an ambient pressure in air surrounding the domestic appliance in the second container.
- the water is conveyed by generating a negative pressure in the second container relative to the ambient pressure, and by this negative pressure, the water is sucked from the first container to the second. It is understood that it is within the scope of the invention to also complete the first container against the environment of the domestic appliance, and then alone or with an overpressure relative to the ambient pressure to promote the water.
- the domestic appliance is a condenser dryer, in particular with a heat pump
- the first container is a tray for collecting condensate, which is formed in a heat exchanger
- the second container is a storage container for storing the condensate.
- the water pipe preferably connects the storage tank with the trough located below the heat exchanger so that condensate water located therein can be conveyed via the water pipe into the storage tank.
- the condensate water sucked into the storage tank is then optionally available for subsequent process steps, in particular for the cleaning of the heat exchanger.
- the water tank can also be emptied and the condensate water disposed of by an operator.
- the means for generating the negative pressure comprise an air pump connected to the second container.
- This may, for example, be such that the air pump is connected via a line, for example in the form of a tube, to the second container or is coupled to the same.
- the air pump By commissioning the air pump, the air can then be sucked out of the container, and there is a negative pressure in the container. In this way, it is possible to generate the negative pressure without much effort and thus to promote the water in a technically simple way.
- the domestic appliance can have, for example, a control device-in particular a microcontroller.
- the control device can then turn on the air pump, thus temporarily creating a negative pressure in the water tank and to promote in this way the water in the water tank.
- the controller may also control a speed of the air pump and thereby the rate at which the pressure in the second container changes. Then different amounts of water can be promoted depending on demand or situation.
- a pressure in the water tank can be generated, which is about 50 mbar to 300 mbar, in particular about 50 mbar to 150 mbar, lower than the ambient pressure outside the water tank.
- the means may generate a vacuum in the water tank of about 100 mbar relative to the ambient pressure. It has been found that with a vacuum of about 100 mbar and a suction height - about the length of the water pipe - of about 80 cm volume flows up to 2.5 liters per minute can be achieved. So it can be a relatively small - and also compared to a water pump simpler - air pump can be used to achieve satisfactory results in pumping the water. Due to a relatively low negative pressure, which is required for conveying the water, electric power can therefore also be saved, if appropriate, in comparison to the possibilities of the prior art.
- valves present in the second container are closed.
- all the openings present there - except for a suction opening, via which the air is sucked off, and an inlet opening for the pumped water - sealed, namely with the aid of existing valves.
- a ventilation vent for venting may be closed by means of a vent valve and a purging port for purging a heat exchanger using a flush valve.
- the domestic appliance comprises a locking device, which serves to maintain a closed position of the valve at the prevailing in the second container vacuum.
- a locking device which serves to maintain a closed position of the valve at the prevailing in the second container vacuum.
- a reliable maintenance of the closed position of the valve can be achieved, for example, when the locking device is constructed on the principle of a toggle lever.
- the locking device is used in particular for mechanically locking the valve.
- the locking device can simultaneously lock both valves. Then, the respective closed positions of the valves are maintained at the prevailing in the second container vacuum using only a locking device.
- the domestic appliance thus comes in this embodiment without an additional locking device; This is easily achieved by the execution of the locking device according to the principle of a toggle lever: Is one of the two openings in a lid and the other in a bottom of the second container in the manner formed so that both openings are located on a vertical, and both openings are closed in the interior in each case by a poppet valve, the locking can be realized by an extendable rod.
- the extended rod - which can be composed of two connected by a joint rods - then presses the two valves against respective inner wall and thus prevents the valves are moved when building the negative pressure from the respective closed position.
- FIG. 1 shows a schematic illustration of a domestic appliance according to an embodiment
- FIG. 2 shows a schematic representation of a water delivery system of the domestic appliance according to FIG. 1.
- a domestic appliance 1 shown in FIG. 1 is a condensation dryer in the exemplary embodiment.
- the domestic appliance 1 comprises a laundry drum 2, in which laundry items 3 are accommodated.
- a closed process air circuit 4 is provided, in which - driven by a fan 5 - circulates a process air flow, which absorbs moisture from the laundry items 3 and dissipates.
- a heater 6 the process air is heated before entering the laundry drum 2.
- the heater may be a simple electrical resistance heater, it may also be a heat source 6 of a heat pump 6, 7, in addition to the heat source 6 to be described below a heat sink 7 and a pump means not shown for pumping heat from the heat sink 7 to the heat source.
- a water pipe 9 From the tub 8 such condensate water passes through a water pipe 9 to a storage container 10, which is also a second container 10 and destined for storing the water in the form of the condensate here.
- the water replaced both in the first container 8 and in the second container 10, a portion of the existing air there.
- Fig. 1 The order of arrangement of the fan 5 and the heater 6 is shown in Fig. 1 only by way of example. Likewise, the fan 5 can be arranged in the flow direction immediately behind the heat exchanger 7 and the heater 6 immediately before the laundry drum 2.
- a cleaning device For cleaning the heat exchanger 7, a cleaning device is provided which has a purge line 1 1.
- the purge line 1 1 is connected to the storage tank 10.
- a valve 12 is integrated. By opening the valve 12, the condensate located in the storage container 10 can be delivered to the heat exchanger 7.
- the arrangement of the valve 12 is shown in Fig. 1 only functionally; This valve 12 may be integrated into the storage tank 10, as shown in the embodiment of FIG. 2. It is used in the water pipe 9 no pump for conveying the condensate. In other words, the water pipe 9 is free of conveyors over its entire length.
- the domestic appliance 1 comprises means for generating a pressure difference between air in the tub 8 and air in the storage tank 10.
- the tub 8 is open to the environment of the domestic appliance 1, so that there is essentially the ambient pressure in the air and stops.
- the storage container 10 is lockable to the environment of the household appliance 1, so that in the air enclosed therein a negative pressure based on the ambient pressure can be produced.
- the means for generating this negative pressure comprise an air pump 13, which is connected to the water tank 10 via an air line 14. By means of the air pump 13, air can be sucked out of the storage container 10 in order to produce the vacuum necessary for conveying the condensate water in this way.
- the air pump 13 is controlled by means of a control device 15, which is a microcontroller in the embodiment.
- the control device 15 also controls other components of the domestic appliance 1, namely in the present case in particular the valve 12, the blower 5 as well as a drive motor, not shown in FIG. 1, for driving the laundry drum 2 and further valves present in the water tank 10.
- a vacuum of about 100 mbar with respect to the ambient pressure is generated in the exemplary embodiment in the storage container 10 in normal operation.
- the control device 15 can also control the change in the pressure prevailing in the storage container 10, namely by controlling a rotational speed of the air pump 13. Depending on the situation and requirement, a desired amount of the condensate can thus be sucked in each case.
- the negative pressure in the storage tank 10 is generated as needed, ie the condensate is not continuously, but depending on demand promoted.
- the storage container 10 is - except for a suction port 16 through which the air is sucked out of the water tank 10 by means of the air pump 13, and up to an inlet opening 17 through which the condensate in the storage container 10 enters - sealed to the environment.
- the valve 12 is closed and locked.
- the air pump 13 is turned off, and the condensate is available in the storage container 10 for further process steps available. For example, then the heat exchanger 7 can be cleaned or the storage tank 10 are emptied.
- a water conveyor system including the storage container 10, the tub 8, the water pipe 9 and the purge line 1 1 is shown in a schematic representation.
- the storage container 10 is received in a receiving part or a holder 18 (shaft) and held by this holder 18. An operator can pull out and empty the storage container 10 from the holder 18. All existing connections of the storage container 10 are thus realized on the holder and remain with the water tank 10 pulled out in the domestic appliance. 1
- the components shown inside the storage container 10 can be pulled out together with the storage container 10.
- the storage container 10 has an inlet filter 19. This has the task to catch up with the water promoted hair and lint, so that they do not get into the interior of the storage container 10.
- the suction opening 16 is in the immediate region of the inlet opening 17th
- the suction opening 16 and the inlet opening 17 can also be combined, ie formed by a common opening.
- the seal 20 is one for the two lines 9, 14 common seal.
- the air pump 13 can be connected to the storage container 10 (via the holder 18) at any desired location on a side of the lid facing away from the tray 8.
- a protective device (not shown in the figures) may be integrated, by means of which the air pump 13 is protected against water hammer.
- a safety valve and a water level sensor both preferably placed in the region of the suction opening 16.
- the purge line 1 1 is connected to the storage container 10 via the holder 18, namely via a scavenging port 22.
- a valve 12th provided in the storage container 10.
- the valve 12 is a poppet valve.
- the storage container 10 also has a ventilation opening 23; for closing the ventilation opening 23, a further valve 24 is provided, namely also a poppet valve.
- the two valves 12, 24 can in the vertical direction - as indicated by an arrow 25 - moves and thus occupy a corresponding closed position or an open position.
- a locking device 26 is provided in the storage container 10.
- the locking device 26 serves to maintain the respective closed positions of the valves 12, 24, namely, when in the storage tank 10, the negative pressure prevails.
- the mechanical locking device 26 is formed in the embodiment according to the principle of a toggle lever and comprises two rods 27, 28, which are connected to each other via a hinge 29. On the other hand, the rods 27, 28 are also pivotally connected to the respective valve 12, 24. If the joint 29 is now moved in the direction of an arrow 30, that is to say in FIG.
- a domestic appliance 1 is provided, in which water can be reliably conveyed via a water pipe 9 into a storage tank 10, without a separate water pump having to be inserted into the water pipe 9.
- a negative pressure is generated in the storage container 10, namely with respect to an ambient pressure prevailing outside the storage container 10.
- Means are provided for generating the negative pressure or the pressure difference, which may include an air pump 13 connected to the storage tank 10.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Jet Pumps And Other Pumps (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009047029A DE102009047029A1 (de) | 2009-11-24 | 2009-11-24 | Wasserführendes Hausgerät und Verfahren zum Fördern von Wasser in einem wasserführenden Hausgerät |
| PCT/EP2010/066909 WO2011064079A2 (de) | 2009-11-24 | 2010-11-05 | Wasserführendes hausgerät und verfahren zum fördern von wasser in einem wasserführenden hausgerät |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2504484A2 true EP2504484A2 (de) | 2012-10-03 |
| EP2504484B1 EP2504484B1 (de) | 2014-04-30 |
Family
ID=43901850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10778983.6A Not-in-force EP2504484B1 (de) | 2009-11-24 | 2010-11-05 | Wasserführendes hausgerät und verfahren zum fördern von wasser in einem wasserführenden hausgerät |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2504484B1 (de) |
| DE (1) | DE102009047029A1 (de) |
| WO (1) | WO2011064079A2 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013212338A1 (de) * | 2013-06-26 | 2014-12-31 | BSH Bosch und Siemens Hausgeräte GmbH | Kondensatsammelbehälter-Anordnung für ein Trocknungsgerät |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7302001A (de) * | 1972-02-22 | 1973-08-24 | ||
| DE3333567A1 (de) * | 1983-09-16 | 1985-04-11 | Cetec Mekaniska Verkstad AB, 57091 Kristdala | Vorrichtung zum aufsaugen von fluessigkeiten |
| DE29701440U1 (de) * | 1997-01-29 | 1998-05-28 | AEG Hausgeräte GmbH, 90429 Nürnberg | Kondensatsammelbehälter |
| DE10141629A1 (de) * | 2001-08-24 | 2003-03-06 | Vorwerk Co Interholding | Verfahren zum Entleeren eines Wassertanks einer Haushalts-Dampfbügelvorrichtung sowie Entleerungseinrichtung für einen derartigen Wassertank |
| US20030079368A1 (en) * | 2001-10-25 | 2003-05-01 | Hoffman Karl H. | Flat material dryer |
| US20050183208A1 (en) * | 2004-02-20 | 2005-08-25 | The Procter & Gamble Company | Dual mode laundry apparatus and method using the same |
| DE102007016074A1 (de) | 2007-04-03 | 2008-10-09 | BSH Bosch und Siemens Hausgeräte GmbH | Verfahren und Vorrichtung zum Reinigen eines Bauteiles, insbesondere eines Verdampfers einer Kondensatoreinrichtung sowie Wasch- oder Wäschetrockner mit einer solchen Vorrichtung |
| DE102007060752A1 (de) * | 2007-12-17 | 2009-06-18 | Vorwerk & Co. Interholding Gmbh | Wasser-Nachfüllbehältnis für einen Flüssigkeitstank sowie Verfahren zum Entleeren eines Flüssigkeitstanks |
-
2009
- 2009-11-24 DE DE102009047029A patent/DE102009047029A1/de not_active Withdrawn
-
2010
- 2010-11-05 WO PCT/EP2010/066909 patent/WO2011064079A2/de not_active Ceased
- 2010-11-05 EP EP10778983.6A patent/EP2504484B1/de not_active Not-in-force
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011064079A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011064079A3 (de) | 2011-08-11 |
| DE102009047029A1 (de) | 2011-05-26 |
| EP2504484B1 (de) | 2014-04-30 |
| WO2011064079A2 (de) | 2011-06-03 |
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