EP2980305B1 - Household appliance such as a laundry dryer, a laundry washing-drying machine, a laundry washing maschine, a dishwasher having a heat pump unit - Google Patents
Household appliance such as a laundry dryer, a laundry washing-drying machine, a laundry washing maschine, a dishwasher having a heat pump unit Download PDFInfo
- Publication number
- EP2980305B1 EP2980305B1 EP15002243.2A EP15002243A EP2980305B1 EP 2980305 B1 EP2980305 B1 EP 2980305B1 EP 15002243 A EP15002243 A EP 15002243A EP 2980305 B1 EP2980305 B1 EP 2980305B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- household appliance
- heat pump
- refrigerant
- dryer
- enclosed casing
- 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.)
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Links
- 238000001035 drying Methods 0.000 title description 2
- 238000010412 laundry washing Methods 0.000 title 1
- 239000003507 refrigerant Substances 0.000 claims description 40
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims 1
- 238000005538 encapsulation Methods 0.000 description 35
- 229910000679 solder Inorganic materials 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- 239000003570 air Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Images
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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/50—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to heat pumps, e.g. pressure or flow rate
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/26—Heat pumps
-
- 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
-
- 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
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
- D06F58/50—Responding to irregular working conditions, e.g. malfunctioning of blowers
Definitions
- Household appliance such as a tumble dryer, washer-dryer, a washing machine, a dishwasher with a heat pump device
- the invention relates to a household appliance such as a tumble dryer, washer dryer, a washing machine, a dishwasher with a heat pump device comprising a refrigerant circuit, wherein the refrigerant circulates in a piping system with an evaporator, a compressor, a condenser and a throttle and wherein the floor module as Carrier for the heat pump device forms a part of the device housing, wherein at least one region in the refrigerant circuit of the heat pump device with respect to the atmospheric environment in the housing of the household appliance is provided with an encapsulation.
- a household appliance such as a tumble dryer, washer dryer, a washing machine, a dishwasher with a heat pump device comprising a refrigerant circuit, wherein the refrigerant circulates in a piping system with an evaporator, a compressor, a condenser and a throttle and wherein the floor module as Carrier for the heat pump device forms a part of the device housing, wherein at least one region in the refrigerant circuit
- Such a household appliance is from the EP 2 343 411 A1 known.
- the laundry dryer described therein has a closed enclosure for the compressor of the heat pump device. By encapsulating the compressor is to be achieved that in the refrigeration cycle no additional measures for cooling would be required.
- a laundry drying apparatus with a heat pump device which has a fire protection device.
- a floor module is known in which the heat pump device comprises a line system which connects an evaporator, a compressor and a condenser and a throttle.
- the aggregates present in the floor module are covered here by means of a sheet, in order to prevent in this way that deposit on the floor group and here on the aggregates lint, which can lead to a fire.
- the cover sheet described in the document acts as a fire protection in the device.
- This fire protection arrangement described there is particularly designed so that the heat pump device and the ignition sources are protected from external influences, and it should also be ensured that, for example, dust and lint should not penetrate into the heat pump unit.
- the fire protection device described therein does not ensure that in particular leaks of refrigerants that can lead to a fire can be prevented.
- the invention thus raises the problem of forming a household appliance with a heat pump device such that the use of alternative refrigerants such as combustible refrigerants is also possible.
- combustible refrigerants with a low greenhouse gas potential can be used for tumble dryers, washer-dryers or washing machines or dishwashers.
- a new design or division of the floor module results in gas-tight or gas-shielded zones, which are isolated from the rest of the dryer.
- the floor module can be changed to the effect that on the basis of cover hoods produced by injection molding encapsulations in the region of
- Floor module can be provided. It is thereby an encapsulated zone (encapsulation) constructed around the compressor and / or the solder joints.
- the zone (encapsulation) is to be understood as having bores (openings) for the execution of the escaping refrigerant.
- the encapsulated zone (encapsulation) can be used in a ventilated area and unventilated area can be separated to further reduce the risk of leakage. It is possible to separate the zones into several areas, which are oriented at the solder joints.
- the encapsulated zone can be filled with an inert gas (eg nitrogen) in order to avoid the penetration of oxygen.
- an inert gas eg nitrogen
- the holes in the bottom of the enclosure must be closed to a gas-tight zone.
- the cooling of the compressor can be done by means of "heat pipes” or “thermosyphons", so that the desuperheater no longer cools the compressor directly.
- a direct cooling of the compressor is still possible with the use of blowers, if only the solder joints of the compressor intake and compressor pressure in the protected area, ie within the enclosure, ( FIG. 6a ).
- the encapsulated zone (encapsulation) can in this case also be provided with sensors in order to detect a possible leakage of the refrigerant.
- the device Before reaching a critical, ignitable air-gas mixture, the device can be shut down automatically via a switching device.
- the arranged as Thomasêt between the pipe bends and the process air separator plate can, for example, with epoxy or other sealing materials such.
- a desuperheater fan can be used to reduce the concentration of combustible refrigerant in the zone.
- a dryer with flammable refrigerant can be realized in this way.
- the ignition sources such as relays, drive motor electronics and switches do not need to be installed in explosion-proof design.
- the combustible refrigerant remains in a protected area or within an encapsulation and deviates into the installation space via suitable openings and / or collecting ducts.
- collecting ducts can be mounted below the floor module, to direct the exiting refrigerant specifically to a defined position of the device. Furthermore, it is advantageous that refrigerant leaks can be better identified.
- the encapsulation may preferably be arranged around the compressor and / or the solder joints of the conduit system.
- tunnel-like openings or collecting channels are provided so that the feeding lines can be sealed in the tunnel-like passage. It is particularly advantageous, for example, to lay the tunnel-like openings preferably below the floor module.
- the encapsulation of the refrigerant circuit comprises several areas. These can be formed separately from each other. There is also the possibility to equip individual areas here with an internal ventilation. For this purpose, an explosion-proof blower can be used.
- the encapsulation is designed as a plastic hood which is fixed to the floor module and covers the compressor with its first area and the solder joints of the line system with the second area.
- the encapsulation can also be filled with an inert gas.
- the enclosure can act together with a Enthitzergebläse. It is also possible to provide sensors in the enclosure, which signal a potential leak to detect it.
- FIGS. 1 and 2 each show in perspective views a floor module 1 for a household appliance, such as for a tumble dryer, which has a heat pump device 2.
- the heat pump device 2 in this case comprises a refrigerant circuit, wherein in a line system 3, an evaporator 4, a compressor 5, a condenser 6 and a throttle 7 are arranged. In the pipe system 3, a refrigerant circulates.
- the evaporator 4 and the condenser 6 are below a hood 8, through which a fan 9, shown in the Figures 3 and 4 , the process air flows to dry the laundry in a drum 10, indicated in the Figures 5 and 6 , serves.
- the process air flows starting from the drum 10 via the evaporator 4 in the duct device 11 shown as a cover, before it again absorbs heat at the condenser 6, and then passes back into the drum 10 at the back of the tumble dryer.
- FIGS. 1 and 2 Like from the Figures 3 and 4 , but also in the two perspective representations of FIGS. 1 and 2 can be seen, is to use a flammable refrigerant in the conduit system 3, at least one area 12, in particular here exposed by the box-like arrangement in the FIGS. 1 and 2 in which the refrigerant circuit of the heat pump device 2 is kept, provided with an encapsulation 13 with respect to the atmospheric environment in the housing of the household appliance.
- the encapsulation 13 is also visible in the plan view.
- the encapsulation 13 is preferably around the compressor 5 and the solder joints 14 of the conduit system 3 is arranged.
- the enclosure 13 is provided with tunnel-like openings 15, which are not shown here.
- These tunnel-like openings 15 may in this case preferably be arranged below the floor module 1, as shown for example in the FIG. 5 is shown where a portion of the floor module 1 is shown schematically in front view.
- the tunnel-like openings 15 extend downwards, so that due to the given encapsulation 13, the flammable refrigerant can not penetrate into the inner housing area here but is specifically led out down from the device housing housing.
- the tunnel-like openings 15 may be associated with collecting channels 15a for the targeted discharge of the leaked refrigerant (see FIG. 5a ).
- the encapsulation 13 in this case comprises a plurality of regions 16 and 17, as these for example in the FIG. 4 are shown.
- the areas 16 and 17 of the encapsulation 13 are in this case separated from each other. So one recognizes in particular in the FIG. 3 in that, on the one hand, the compressor 5 is encapsulated in the first region 16 and, in addition to the encapsulation of the compressor 5, a second region 17 for the line system 3 is provided, which in particular establishes the connection between the compressor 5 and a throttle 7. An embodiment of this is in FIG. 7 shown.
- the encapsulation 13 is designed as a plastic hood which is fixed to the floor module 1 and covers the compressor 5 with its first area 16 and the solder joints 14 of the line system 3 with the second area 17.
- FIG. 8 shows a view looking at the bottom of the module, where the in FIG. 5 shown openings 15 are shown.
- the openings 15 are integrated in the receptacle for the compressor 5.
- the encapsulation 13 may also be equipped with an internal ventilation, in particular, the air masses, which is located in the enclosure 13 of one or the other area 16, 17, circulates, so that, as in the FIG. 4 it can be seen, this can be derived in the process air stream.
- the internal ventilation has the advantage that thereby the compressor 5 is cooled and thus it does not come to overheating.
- the encapsulation 13 is sealed so tight, as in particular in the FIG. 6 and 6a is shown.
- the encapsulation 13 is filled with an inert gas such as nitrogen.
- the encapsulation 13 cooperates with a desuperheater blower which dissipates the resulting heat removed from the hermetically sealed room.
- a desuperheater blower which dissipates the resulting heat removed from the hermetically sealed room.
- sensors which detect a concentration of the combustible gas with the ambient air, so that the heat pump device 2 is automatically switched off.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Description
Haushaltsgerät wie beispielsweise ein Wäschetrockner, Waschtrockner, eine Waschmaschine, ein Geschirrspülmaschine mit einer WärmepumpeneinrichtungHousehold appliance such as a tumble dryer, washer-dryer, a washing machine, a dishwasher with a heat pump device
Die Erfindung betrifft ein Haushaltsgerät wie beispielsweise ein Wäschetrockner, Waschtrockner, eine Waschmaschine, ein Geschirrspülmaschine mit einer Wärmepumpeneinrichtung, die einen Kältemittelkreislauf umfasst, wobei das Kältemittel in einem Leitungssystem mit einem Verdampfer, einem Kompressor, einem Verflüssiger und einer Drossel zirkuliert und wobei das Bodenmodul als Träger für die Wärmepumpeneinrichtung einen Teil des Gerätegehäuses bildet, wobei wenigstens ein Bereich in dem Kältemittelkreislauf der Wärmepumpeneinrichtung gegenüber der atmosphärischen Umgebung im Gehäuse des Haushaltsgerätes mit einer Kapselung versehen ist.The invention relates to a household appliance such as a tumble dryer, washer dryer, a washing machine, a dishwasher with a heat pump device comprising a refrigerant circuit, wherein the refrigerant circulates in a piping system with an evaporator, a compressor, a condenser and a throttle and wherein the floor module as Carrier for the heat pump device forms a part of the device housing, wherein at least one region in the refrigerant circuit of the heat pump device with respect to the atmospheric environment in the housing of the household appliance is provided with an encapsulation.
Ein derartiges Haushaltgerät ist aus der
Aus dem Stand der Technik ist gemäß der
So ist beispielsweise aus der
Diese dort beschriebene Brandschutzanordnung ist insbesondere dazu ausgelegt, dass die Wärmepumpeneinrichtung und die Zündquellen vor äußeren Einflüssen geschützt sind, wobei auch sichergestellt werden soll, dass beispielsweise Staub und Flusen nicht in die Wärmepumpeneinheit eindringen sollen. Die dort beschriebene Brandschutzeinrichtung stellt jedoch nicht sicher, dass insbesondere Leckagen von Kältemitteln, die zu einem Brand führen können, verhindert werden können.This fire protection arrangement described there is particularly designed so that the heat pump device and the ignition sources are protected from external influences, and it should also be ensured that, for example, dust and lint should not penetrate into the heat pump unit. However, the fire protection device described therein does not ensure that in particular leaks of refrigerants that can lead to a fire can be prevented.
Für den Einsatz oder den Ersatz des Kältemittels gibt es viele Alternativen, wobei Alternativkältemittel einer Brandschutzauflage unterliegen. Mit dem jetzigen Aufbau des Trockners lässt sich sehr schwer ein Trockner mit einem brennbaren Kältemittel realisieren, da im Fall eines Lecks eine explosive Konzentration des Luft-Gas-Gemisches im Bereich von Zündquellen (Relais, Motor, etc.) vorhanden sein kann.There are many alternatives for using or replacing the refrigerant, with alternative refrigerants being subject to a fire protection coating. With the current design of the dryer is very difficult to realize a dryer with a combustible refrigerant, since in the case of a leak, an explosive concentration of the air-gas mixture in the range of ignition sources (relay, motor, etc.) may be present.
Eine mögliche Leckage des Kältemittels in der Nähe von Zündquellen ist bei der Verwendung nicht brennbarer Kältemittel weniger problematisch. Im Fall einer Leckage verteilt sich das Kältemittel überall im Trockner. Lötstellen, die als Schwachstellen im System zu sehen sind, befinden sich im Prozessluftstrom und auch in der Nähe von Zündquellen. Eine Kältemittelleckage führt hierbei zu einer guten Verteilung des Kältemittels innerhalb des Trockners. Brennbares Kältemittel kann deshalb nur unter erhöhter Sicherheit der möglichen Zündquelle angewendet werden.Possible leakage of the refrigerant near ignition sources is less problematic when using non-flammable refrigerants. In the event of a leak, the refrigerant spreads throughout the dryer. Solder joints, which are seen as weak points in the system, are located in the process air stream and also near ignition sources. A refrigerant leakage in this case leads to a good distribution of the refrigerant within the dryer. Flammable refrigerant can therefore only be used with increased safety of the possible ignition source.
Der Erfindung stellt sich somit das Problem ein Haushaltsgerät mit einer Wärmepumpeneinrichtung derart weiter zu bilden, dass auch der Einsatz von alternativen Kältemitteln wie beispielsweise brennbaren Kältemitteln möglich ist.The invention thus raises the problem of forming a household appliance with a heat pump device such that the use of alternative refrigerants such as combustible refrigerants is also possible.
Erfindungsgemäß wird dieses Problem mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen.According to the invention, this problem is solved by the features of
Die mit der Erfindung erreichten Vorteile bestehen darin, dass brennbare Kältemittel mit niedrigem Treibhausgaspotenzial für Wäschetrockner, Waschtrockner oder Waschmaschinen oder Geschirrspülmaschinen genutzt werden können. Durch eine neue Konzeptionierung bzw. Aufteilung des Bodenmoduls ergeben sich gasdichte bzw. gasabgeschirmte Zonen, die vom Rest des Trockners isoliert sind. Dabei kann das Bodenmodul dahingehend geändert werden, dass auf Grund von im Spritzgussverfahren hergestellten Deckhauben Abkapselungen im Bereich desThe advantages achieved with the invention are that combustible refrigerants with a low greenhouse gas potential can be used for tumble dryers, washer-dryers or washing machines or dishwashers. A new design or division of the floor module results in gas-tight or gas-shielded zones, which are isolated from the rest of the dryer. In this case, the floor module can be changed to the effect that on the basis of cover hoods produced by injection molding encapsulations in the region of
Bodenmoduls vorgesehen werden. Es wird dabei eine abgekapselte Zone (Kapselung) um den Kompressor und/oder die Lötverbindungen konstruiert. Die Zone (Kapselung) ist mit Bohrungen (Öffnungen) für die Ausführung des austretenden Kältemittels verstehen. Darüber hinaus werden kritische Leitungen mit Lötverbindungen unterhalb der Abdeckung, das heißt außerhalb des restlichen Bodenmoduls geführt. Konstruktiv kann dies durch entsprechende Tunnel (Sammelkanäle) nach Art eines umgekehrten U's oder Ähnlichem, die nach unten oder einer anderen günstigen Position geöffnet sind, geschehen. Hierdurch wird ein gezielter Gasabfluss erreicht.Floor module can be provided. It is thereby an encapsulated zone (encapsulation) constructed around the compressor and / or the solder joints. The zone (encapsulation) is to be understood as having bores (openings) for the execution of the escaping refrigerant. In addition, critical lines with solder joints below the cover, that is led outside the rest of the floor module. Constructively, this may be done by corresponding inverted-U (or similar) tunnels (collection channels) that are open to the bottom or another favorable position. As a result, a targeted gas discharge is achieved.
Eine Verteilung des Gases im Gerät während des dynamischen Vorganges und damit die möglicherweise kritische Ansammlung von zündfähigem Gas wird somit unterbunden. Die abgekapselte Zone (Kapselung) kann in einem belüfteten Bereich und unbelüfteten Bereich getrennt werden, um das Risiko der Leckage weiter zu verringern. Es ist möglich, die Zonen in mehrere Bereiche zu trennen, die sich an den Lötstellen orientieren.A distribution of the gas in the device during the dynamic process and thus the potentially critical accumulation of flammable gas is thus prevented. The encapsulated zone (encapsulation) can be used in a ventilated area and unventilated area can be separated to further reduce the risk of leakage. It is possible to separate the zones into several areas, which are oriented at the solder joints.
Nach einer weiteren Ausführung der Erfindung kann die abgekapselte Zone (Kapselung) mit einem inertem Gas (z. B. Stickstoff) gefüllt werden, um die Eindringung von Sauerstoff zu vermeiden. Dafür müssen die Bohrungen im dem Boden der Kapselung zu einer gasdichten Zone verschlossen werden. Die Kühlung des Kompressors kann hierbei mittels "heat pipes" bzw. "thermosyphons" geschehen, so dass das Enthitzergebläse den Kompressor nicht mehr direkt kühlt. Eine direkte Kühlung des Kompressors ist weiterhin mit der Anwendung von Gebläsen möglich, wenn sich nur die Lötstellen des Kompressorsaugstutzens und Kompressordruckstutzens in dem geschützten Bereich, also innerhalb der Kapselung, befinden (
Ein Trockner mit brennbarem Kältemittel kann so realisiert werden. Die Zündquellen wie beispielsweise Relais, Antriebsmotor-Elektronik und Schalter müssen nicht in explosionsgeschützter Ausführung eingebaut werden. Im Fall eines Lecks bleibt das brennbare Kältemittel in einem geschützten Bereich bzw. innerhalb einer Kapselung und weicht in den Aufstellraum über geeignete Öffnungen und/oder Sammelkanäle aus. Hierzu können Sammelkanäle unterhalb des Bodenmoduls angebracht werden, um das austretende Kältemittel gezielt an eine definierte Position des Geräts zu leiten. Weiterhin ist es von Vorteil, dass Kältemittelleckagen sich besser identifizieren lassen.A dryer with flammable refrigerant can be realized in this way. The ignition sources such as relays, drive motor electronics and switches do not need to be installed in explosion-proof design. In the case of a leak, the combustible refrigerant remains in a protected area or within an encapsulation and deviates into the installation space via suitable openings and / or collecting ducts. For this purpose, collecting ducts can be mounted below the floor module, to direct the exiting refrigerant specifically to a defined position of the device. Furthermore, it is advantageous that refrigerant leaks can be better identified.
Gemäß der Erfindung wird hierzu vorgeschlagen, dass unter Verwendung eines entflammbaren Kältemittels wenigstens ein Bereich in dem Kältemittelkreislauf der Wärmepumpeneinrichtung gegenüber der atmosphärischen Umgebung im Gerätegehäuse mit einer Kapselung versehen ist. Hierbei kann die Kapselung vorzugsweise um den Kompressor und/oder die Lötverbindungen des Leitungssystems angeordnet sein.According to the invention, it is proposed for this purpose that, using a flammable refrigerant, at least one region in the refrigerant circuit of the heat pump device is provided with an encapsulation with respect to the atmospheric environment in the device housing. In this case, the encapsulation may preferably be arranged around the compressor and / or the solder joints of the conduit system.
An der Kapselung sind tunnelartige Öffnungen bzw. Sammelkanäle vorgesehen, so dass die zuführenden Leitungen in dem tunnelartigen Gang dichtend eingeschlossen werden können. Hierbei ist es besonders vorteilhaft, beispielsweise die tunnelartigen Öffnungen vorzugsweise unterhalb des Bodenmoduls zu verlegen.At the enclosure tunnel-like openings or collecting channels are provided so that the feeding lines can be sealed in the tunnel-like passage. It is particularly advantageous, for example, to lay the tunnel-like openings preferably below the floor module.
Nach einer besonders vorteilhaften Ausgestaltung der Erfindung umfasst die Kapselung des Kältemittelkreislaufs mehrere Bereiche. Diese können voneinander getrennt ausgebildet sein. Dabei besteht dann auch die Möglichkeit, einzelne Bereiche hier mit einer Innenbelüftung auszustatten. Hierfür kann ein Ex-geschütztes Gebläse zum Einsatz kommen.According to a particularly advantageous embodiment of the invention, the encapsulation of the refrigerant circuit comprises several areas. These can be formed separately from each other. There is also the possibility to equip individual areas here with an internal ventilation. For this purpose, an explosion-proof blower can be used.
In einer vorteilhaften Ausgestaltung ist die Kapselung als Kunststoffhaube ausgebildet, die an dem Bodenmodul fixiert ist und mit ihrem ersten Bereich den Kompressor und mit dem zweiten Bereich die Lötverbindungen des Leitungssystems überdeckt.In an advantageous embodiment, the encapsulation is designed as a plastic hood which is fixed to the floor module and covers the compressor with its first area and the solder joints of the line system with the second area.
Nach einer besonders vorteilhaften Ausgestaltung der Erfindung kann die Kapselung auch mit einem inerten Gas gefüllt werden. Um hier beispielsweise entstehende Wärme in der abgeschlossenen Kapselung abzuführen, kann die Kapselung mit einem Enthitzergebläse zusammen wirken. Auch besteht die Möglichkeit, in der Kapselung Sensoren vorzusehen, die zur Erfassung einer möglichen Leckage ein Signal geben.According to a particularly advantageous embodiment of the invention, the encapsulation can also be filled with an inert gas. To dissipate, for example, resulting heat in the sealed enclosure, the enclosure can act together with a Enthitzergebläse. It is also possible to provide sensors in the enclosure, which signal a potential leak to detect it.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigt
Figur 1- eine perspektivische Ansicht eines Bodenmoduls für einen Wäschetrockner mit einer Kapselung in einer ersten Ausführungsform mit einem Bereich,
Figur 2- eine weitere perspektivische Ansicht eines Bodenmoduls mit einer Kapselung in einer zweiten Ausführungsform mit zwei Bereichen;
Figur 3- eine Draufsicht auf ein Bodenmodul mit einer Kapselung in der ersten Ausführungsform,
Figur 4- eine Draufsicht auf ein Bodenmodul mit der Kapselung in der zweiten Ausführungsform mit zwei Bereichen,
Figur 5- eine Vorderansicht in teilweise geschnittener Darstellung des Bodenmoduls mit Kapselung in der geöffneten Ausführungsform,
- Figur 5a
- eine Vorderansicht in teilweise geschnittener Darstellung des Bodenmoduls mit tunnelartigen Öffnungen,
Figur 6- eine weitere Vorderansicht in teilweise geschnittener Darstellung des Bodenmoduls mit Kapselung in der geschlossenen Ausführungsform,
- Figur 6a
- eine weitere Vorderansicht mit Kapselung des Kompressordruckstutzens und des Kompressorsaugstutzens,
Figur 7- ein Ausführungsbeispiel der in
bzw. 6 schematisch dargestellten Kapselung,Figur 5 Figur 8- eine Ansicht mit Blick auf die Unterseite des Bodenmoduls.
- FIG. 1
- a perspective view of a floor module for a tumble dryer with an encapsulation in a first embodiment with an area
- FIG. 2
- a further perspective view of a floor module with an encapsulation in a second embodiment with two areas;
- FIG. 3
- a plan view of a bottom module with an encapsulation in the first embodiment,
- FIG. 4
- a plan view of a bottom module with the encapsulation in the second embodiment with two areas,
- FIG. 5
- a front view in partial section of the encapsulated floor module in the open embodiment,
- FIG. 5a
- a front view in partial section of the floor module with tunnel-like openings,
- FIG. 6
- 1 is a further front view in partial section of the encapsulating floor module in the closed embodiment,
- FIG. 6a
- Another front view with encapsulation of the compressor pressure port and the compressor intake,
- FIG. 7
- an embodiment of in
FIG. 5 or 6 schematically illustrated encapsulation, - FIG. 8
- a view overlooking the bottom of the floor module.
Die
Wie aus den beiden
Wie aus den
In den
Die Kapselung 13 umfasst hierbei mehrere Bereiche 16 und 17, wie diese beispielsweise in der
Dabei kann die Kapselung 13 auch mit einer Innenbelüftung ausgestattet sein, die insbesondere die Luftmassen, die sich in der Kapselung 13 des einen oder anderen Bereiches 16, 17 befindet, umwälzt, so dass, wie in der
Nach einer besonders vorteilhaften Ausgestaltung der Erfindung besteht auch die Möglichkeit, dass die Kapselung 13 derart dicht verschlossen wird, wie dies insbesondere in der
Für die Verwendung des Ersatzkältemittels können nun auf Grund der so ausgestatteten Wärmepumpeneinrichtung 2 mit einer Kapselung 13 brennbare Kältemittel verwendet werden, die beispielsweise aus Propangas oder Isopropangas bestehen.For the use of the replacement refrigerant can now be used due to the so-equipped
- 0101
- BodenmodulBase module
- 0202
- WärmepumpeneinrichtungA heat pump apparatus
- 0303
- Leitungssystemline system
- 0404
- VerdampferEvaporator
- 0505
- Kompressorcompressor
- 0606
- Verflüssigercondenser
- 0707
- Drosselthrottle
- 0808
- HaubeHood
- 0909
- Gebläsefan
- 1010
- Trommeldrum
- 1111
- Kanaleinrichtungpassage means
- 1212
- BereichArea
- 1313
- Kapselungencapsulation
- 1414
- Lötverbindungsolder
- 1515
- Öffnungen, 15a SammelkanäleOpenings, 15a collection channels
- 1616
- Erster Bereich KapselungFirst area encapsulation
- 1717
- Zweiter Bereich KapselungSecond area encapsulation
Claims (9)
- Household appliance, such as a tumble dryer, a washer-dryer, a washing machine, a dishwasher, comprising a heat pump device (2) that comprises a refrigerant circuit, the refrigerant circulating in a pipe system (3) having an evaporator (4), a compressor (5), a condenser (6) and a throttle (7), and a base module (1) forming part of the appliance housing as a support for the heat pump device (2), at least one region in the refrigerant circuit of the heat pump device (2) being provided with an enclosed casing (13) with respect to the surrounding atmosphere in the housing of the household appliance,
characterised in that
the base module comprises gas-tight or gas-shielded enclosed casings (13) that are insulated from the rest of the dryer and are designed so as to have holes for leading out discharged refrigerant and
in that, when using a flammable refrigerant, the enclosed casings (13) are preferably arranged around the compressor (5) and/or the soldering joints of the pipe system (3). - Household appliance according to claim 1,
characterised in that
the enclosed casing (13) is provided with tunnel-like openings (15) and/or collecting channels (15a). - Household appliance according to claim 2,
characterised in that
tunnel-like openings (15) and/or collecting channels (15a) extend beneath the base module (1). - Household appliance according to claim 3,
characterised in that
the enclosed casing (13) of the refrigerant circuit comprises a plurality of regions (16, 17). - Household appliance according to claim 4,
characterised in that
the regions (16) and (17) of the enclosed casing (13) are designed so as to be separated from one another. - Household appliance according to claims 1 to 5,
characterised in that
the enclosed casing (13) is equipped with an internal ventilation system. - Household device according to claim 1,
characterised in that
the enclosed casing (13) is filled with an inert gas. - Household device according to claim 7,
characterised in that
the enclosed casing (13) interacts with a desuperheater fan. - Household device according to claims 1 to 8,
characterised in that
sensors for detecting potential leakage are provided in the enclosed casing (13).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102014110942 | 2014-08-01 |
Publications (2)
Publication Number | Publication Date |
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EP2980305A1 EP2980305A1 (en) | 2016-02-03 |
EP2980305B1 true EP2980305B1 (en) | 2017-01-25 |
Family
ID=53761924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15002243.2A Active EP2980305B1 (en) | 2014-08-01 | 2015-07-29 | Household appliance such as a laundry dryer, a laundry washing-drying machine, a laundry washing maschine, a dishwasher having a heat pump unit |
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Country | Link |
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EP (1) | EP2980305B1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL3617389T3 (en) * | 2018-08-30 | 2022-03-14 | Electrolux Appliances Aktiebolag | Laundry dryer including a heat pump system |
PL3617390T3 (en) * | 2018-08-30 | 2022-07-11 | Electrolux Appliances Aktiebolag | Laundry dryer including a heat pump system |
EP3617393B1 (en) * | 2018-08-30 | 2022-03-02 | Electrolux Appliances Aktiebolag | Laundry dryer including a heat pump system |
EP3617391A1 (en) * | 2018-08-30 | 2020-03-04 | Electrolux Appliances Aktiebolag | Laundry dryer including a heat pump system |
PL3617392T3 (en) * | 2018-08-30 | 2022-09-26 | Electrolux Appliances Aktiebolag | Laundry dryer including a heat pump system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITPN20000070A1 (en) * | 2000-11-20 | 2002-05-20 | Electrolux Zanussi Elettrodome | HEAT PUMP DRYER |
EP2343411B1 (en) * | 2010-01-07 | 2012-11-14 | Miele & Cie. KG | Washer dryer with heat pump |
SI2407587T1 (en) | 2010-07-16 | 2013-01-31 | Miele & Cie. Kg | Washer dryer with heat pump |
DE102012014230A1 (en) | 2011-10-18 | 2013-04-18 | BSH Bosch und Siemens Hausgeräte GmbH | Laundry drying apparatus has floor plate that is arranged above understructure provided with non-flammable plastic support portion so as to separate covered region of understructure spatially from remaining inner space |
EP2690213A1 (en) * | 2012-07-27 | 2014-01-29 | Electrolux Home Products Corporation N.V. | Appliance for treating articles |
EP2959052B1 (en) * | 2013-02-25 | 2020-10-14 | Electrolux Appliances Aktiebolag | A heat pump laundry drying machine and a method for operating a heat pump laundry drying machine |
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2015
- 2015-07-29 EP EP15002243.2A patent/EP2980305B1/en active Active
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