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EP2843119B1 - Wäschebehandlungsmaschine mit Überhitzungsvermeidungssystem - Google Patents

Wäschebehandlungsmaschine mit Überhitzungsvermeidungssystem Download PDF

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Publication number
EP2843119B1
EP2843119B1 EP13182331.2A EP13182331A EP2843119B1 EP 2843119 B1 EP2843119 B1 EP 2843119B1 EP 13182331 A EP13182331 A EP 13182331A EP 2843119 B1 EP2843119 B1 EP 2843119B1
Authority
EP
European Patent Office
Prior art keywords
air
laundry
appliance
worktop
laundry appliance
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.)
Active
Application number
EP13182331.2A
Other languages
English (en)
French (fr)
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EP2843119A1 (de
Inventor
Massimo Viero
Andrea Contarini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrolux Appliances AB
Original Assignee
Electrolux Appliances AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Electrolux Appliances AB filed Critical Electrolux Appliances AB
Priority to EP13182331.2A priority Critical patent/EP2843119B1/de
Priority to PL14161141T priority patent/PL2843111T3/pl
Priority to EP14161141.8A priority patent/EP2843111B1/de
Priority to AU2014314258A priority patent/AU2014314258B2/en
Priority to CN201480048075.5A priority patent/CN105492681B/zh
Priority to PCT/EP2014/068152 priority patent/WO2015028500A1/en
Publication of EP2843119A1 publication Critical patent/EP2843119A1/de
Application granted granted Critical
Publication of EP2843119B1 publication Critical patent/EP2843119B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • 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 
    • D06F58/22—Lint collecting arrangements

Definitions

  • the solution according to embodiments of the invention generally relates to household and/or professional laundry treating appliances configured for performing drying operations (e.g ., laundry washing/drying appliances and laundry drying appliances, hereinafter both referred to as laundry appliances for the sake of conciseness). More particularly, such solution relates to laundry appliances provided with heat pump devices.
  • Each household and/or professional laundry appliance (such as laundry washing/drying appliance, or washer/dryer, and laundry drying appliance, or dryer) generally comprises a laundry chamber configured for housing a laundry load (including articles such as clothes and other textiles) and for causing drying air circulating therethrough to remove moisture from the laundry load, e.g. shortly after cleaning/washing thereof.
  • a class of laundry appliances are provided with heat pump devices.
  • each heat pump device substantially makes use of a refrigerant circuit for effectively transferring thermal energy from a first side at a lower temperature (also referred to as cool side), to a second side at a higher temperature (also referred to as hot side).
  • a common type of heat pump device exploits physical properties of a refrigerant fluid (or refrigerant), which is made to flow in the refrigerant circuit, and comprises a compressor, a pressure-lowering device (e.g., an expansion valve), and a heat exchanger assembly - i.e. a first heat exchanger (where the refrigerant absorbs heat) and a second heat exchanger (where the refrigerant releases heat).
  • the air leaving the laundry chamber with decreased temperature and increased humidity (or dump air) with respect to the incoming hot air i.e., the drying air
  • the first heat exchanger where it is further cooled down and dehydrated, and then through the second heat exchanger where, upon reheating, it forms the hot drying air, thereafter the drying air is fed again inside the laundry chamber for evaporating moisture from the laundry load.
  • EP0467188 discloses a clothes drier designed so as to avoid additional outlay as far as possible.
  • an incoming-air orifice is arranged, for this purpose, between the evaporator and the condenser in the process-air channel. The temperature level in the process-air channel can thereby be controlled, without appreciably reducing the performance of the heat pump.
  • cooling capacity at cool side is not high enough to efficiently cool down the dump air, which results in overheating of the drying air at hot side.
  • an undesired overheating of the laundry appliance, and especially of electric/electro-mechanic/electronic components housed therein is typically experienced, which sets reliability issues.
  • An aspect of the solution according to one or more embodiments of the invention relates to a laundry appliance comprising a cabinet, a laundry chamber enclosed within the cabinet for containing laundry to be dried, and a worktop atop the cabinet.
  • the worktop integrates a drying process air circulation system adapted to continuously circulate process air through the laundry chamber.
  • the worktop comprises an air duct for allowing ambient air to enter the process air circulation system and to mix with the process air thereby avoiding overheating thereof.
  • the laundry chamber comprises an opening for allowing an amount of process air within it to leave the air circulation system thereby substantially compensating the ambient air added thereinto.
  • the worktop comprises a further air passage configured to allow un-channeled air within the cabinet to be vented outside the appliance, at least a part of said amount of process air being vented un-channeled outside the appliance through said further air passage.
  • the laundry appliance is a washer/dryer operable in washing and/or drying operation modes and comprising a washing products dispensing arrangement fluidly connected to said opening for dispensing, when operated in washing mode, washing products to the laundry chamber. At least a part of said amount of process air is vented channeled outside the washer/dryer through said washing products dispensing arrangement.
  • the laundry appliance further comprises a washing products loading tray, arranged at a front of the worktop, for allowing loading of washing products, the washing products loading tray being fluidly connected to the washing products dispensing arrangement. At least part of said amount of process air is vented outside the appliance through interstices of said loading tray allowing opening/closing movements thereof.
  • the laundry appliance is a washer/dryer operable in washing and/or drying operation modes.
  • the appliance further comprises an overflow-preventing system preventing liquids introduced within the laundry chamber from overflowing out of the washer/dryer. At least a part of said amount of process air flowing into said overflow-preventing system and hence venting inside the washer/dryer.
  • the overflow-preventing system is in fluid communication with said further air passage.
  • said washing products dispensing arrangement comprises a downwards protruding pipe portion configured to be filled, during drying operation mode, with a predefined amount of water, so that when said amount of process air is passed through the washing products dispensing arrangement, fluff is held in the water.
  • the worktop houses, along the process air circulation system, first and second heat exchangers of a heat pump device, said air duct allowing the ambient air to enter the process air circulation system through an input region thereof in correspondence of the second or the first heat exchanger.
  • the worktop houses, along the process air circulation system, first and second heat exchangers of a heat pump device, said air duct allowing the ambient air to enter the process air circulation system through an input region thereof between the first and second heat exchangers.
  • said air duct comprises an enlarged portion acting as a resonant cavity suppressing/dampening acoustic waves within it caused by ambient air flow.
  • said air duct comprises first and second sound suppressing/dampening portions for suppressing/dampening acoustic waves caused by ambient air flow, the first and second suppressing/dampening portions being spaced apart from each other so as to define an air gap therebetween for ambient air flow.
  • said air duct comprises an air passage provided at a panel of said cabinet, said ambient air being admitted within the cabinet through said air passage and hence through said air duct.
  • said air passage extends between top and bottom surfaces of a worktop base, and at a rear portion thereof, the first and second sound suppressing/dampening portions being arranged on the top surface of the worktop base such that the ambient air, after entering said air passage, is channeled within said air gap.
  • the worktop base comprises a bottleneck portion fluidly connecting said air gap to the ambient air input region of the air circulation system, said bottleneck portion preventing the process air from diffusing to the surrounding environment through the air gap and the air passage.
  • Figures 1-4 conceptually show an air circulating system 100-400 according to embodiments of the invention.
  • the air circulating system 100-400 is adapted to continuously, i.e. cyclically, circulate drying air through a laundry chamber 105 (i.e., a tub and a rotating drum housed therein, not illustrated) containing a laundry load to be dried.
  • the air circulating system 100-400 comprises a delivery duct 110 fluidly connected to an input opening IN 105 of the laundry chamber 105 for supplying it with drying air, and a return duct 115 fluidly connected to a main output opening OUT 105 of the laundry chamber 105 for taking moisture-laden air deriving from drying process (dump air).
  • a main duct 120 which houses first HE 1 and second HE 2 heat exchangers (e.g ., evaporator and condenser members, respectively) of a heat pump device, as well as a motor-driven fan 125, e.g . arranged downstream the second heat exchanger HE 2 .
  • first HE 1 and second HE 2 heat exchangers e.g ., evaporator and condenser members, respectively
  • a motor-driven fan 125 e.g . arranged downstream the second heat exchanger HE 2 .
  • the dump air leaving the laundry chamber 105 with decreased temperature and increased humidity with respect to the incoming hot drying air is first passed (through the return duct 115) through the first heat exchanger HE 1 , where it is further cooled down and de-moisturized (heat pump cool side).
  • the de-moisturized air is then passed through the second heat exchanger HE 2 (heat pump hot side), where it is heated-up, thereafter the corresponding hot de-moisturized air, i.e. the drying air, is fed again (through the delivery duct 110) into the laundry chamber 105.
  • the second heat exchanger HE 2 heat pump hot side
  • the corresponding hot de-moisturized air i.e. the drying air
  • a secondary air duct 130-430 is provided that fluidly connects the air circulation system 100-400 with the appliance surrounding environment - preferably, with the outside of a laundry appliance where the air circulation system 100-400 is intended to be used.
  • the secondary air duct 130-430 relatively cool ambient air A AIR is taken from the outside of the laundry appliance and supplied/channeled into the air circulation system 100-400.
  • the ambient air A AIR entering the air circulation system 100-400 mixes with (thereby cooling down) the air circulating therewithin. This avoids overheating issues.
  • Figures 1-3 embodiments differ from one another for the air circulation system 100-300 input region where the ambient air A AIR is allowed to enter - i.e., input region in correspondence of the second heat exchanger HE 2 , input region between the first HE 1 and second HE 2 heat exchangers, or input region in correspondence of the first heat exchanger HE 1 , respectively.
  • the secondary air ducts 130-330 have been illustrated as having same shapes and arrangements, but reciprocally different lengths (depending, in the example at issue, on the air circulation system 100-300 input regions which they are fluidly connected to), it being understood that shape, size and arrangement thereof, not limiting for the invention, may be chosen according to design options of the air circulation system 100-300 (as progressively detailed when introducing design issues thereof) and of the corresponding laundry appliance (as better detailed when discussing a practical implementation thereof).
  • the ambient air A AIR is allowed to enter through the air circulation system 400 input region in correspondence of the second heat exchanger HE 2 (as for Figure 1 embodiment).
  • a secondary output opening OUT 105,S of the laundry chamber 105 is provided for allowing an amount of dump air within it to leave the air circulation system 100-400 (and to vent, at least in part, outside the laundry appliance), so as to substantially compensate/balance the ambient air A AIR added thereinto.
  • the amounts of dump air allowed to leave the air circulation system 100-400 (hereinafter, compensation air C AIR ) and of ambient air A AIR allowed to enter thereinto should be made substantially equal (e.g., by properly shaping and sizing the secondary air duct 130-430 and the secondary output opening OUT 105,S one another).
  • Venting of the compensation air C AIR may take place by any suitable approach, not limiting for the invention.
  • the compensation air C AIR may be vented un-channeled - as for cooling air typically used for cooling down heat pump compressor, not shown - and/or channeled.
  • Figure 4 illustrates compensation air C AIR venting by channeling, wherein a venting duct 435 is provided that fluidly connects the secondary output opening OUT 105,S of the laundry chamber 105 to the environment surrounding the laundry appliance.
  • the venting duct 435 may be a dedicated duct/path/channel, or it may advantageously comprise (as illustrated from Figure 4 on) a washing products dispensing arrangement that, in a laundry appliance performing both washing and drying functions (hereinafter, washer/dryer), allows dispensing washing products from a washing products loading tray 440.
  • washer/dryer a washing products dispensing arrangement that, during a washing-mode operation of the washer/dryer, allows feeding the laundry chamber 105 with washing products.
  • the same dispensing arrangement that, during a washing-mode operation of the washer/dryer, allows feeding the laundry chamber 105 with washing products, is also used, in the example at issue, for venting at least a part of compensation air C AIR outside the washer/dryer during a drying-mode operation thereof.
  • venting of at least a part of compensation air C AIR outside the washer/dryer can take place from the loading tray 440 (both when, in order to allow washing products loading, it is opened, and when it is closed, as better discussed in the following).
  • Ambient air A AIR and compensation air C AIR flows may originate excessive sound/noise issues, thus sound/noise suppression/dampening may be required.
  • the secondary air duct 430 is preferably provided with an enlarged portion 445 that, upon proper sizing, acts as a resonant cavity suppressing/dampening acoustic waves within it at selected frequencies (and/or frequencies ranges).
  • first 445 1 and second 445 2 sound suppressing/dampening portions may be provided (e.g., made of aluminum foam or any other suitable sound absorbing or soundproof materials).
  • the first 445 1 and second 445 2 suppressing/dampening portions are preferably spaced apart from each other so as to define an air gap therebetween for ambient air A AIR flow (with such air gap that, in terms of air path, is part of the secondary air duct 430), for example (as illustrated) arranged at top and bottom recessed walls, respectively, of the cavity 445.
  • a washer/dryer 500 incorporating an air circulation system (e.g., the air circulation system 400) is shown, according to an embodiment of the invention, in the perspective and partly exploded front view of Figure 5A (which will be discussed with joint reference to Figure 4 ).
  • an air circulation system e.g., the air circulation system 400
  • Figure 5A which will be discussed with joint reference to Figure 4
  • references denoting components of the air circulation system 400 in their schematic representation of Figure 4 will also denote the same components in their practical implementation in the washer/dryer 500.
  • the washer/dryer 500 comprises a substantially parallepiped-shaped cabinet 505, having a front panel 505 F , two side panels 505 S (only one visible in the figure), and a bottom panel.
  • the cabinet 505 encloses an inner compartment housing the laundry chamber 105 and accessible through an access door 510 (shown in closed configuration).
  • a top panel 505 T closes the cabinet 505 from above, and defines a ready-to-mount worktop incorporating/housing the air circulation system.
  • Figure 5B showing a perspective rear view of a part of the washer/dryer 500
  • Figures 5C-5D showing top and bottom perspective views with partly removed parts of the worktop 505 T
  • Figures 5E-5F showing a top view and a close-up view, respectively, of the worktop 505 T .
  • the worktop 505 T comprises, at a front thereof, the washing products loading tray 440 (shown in the closed configuration), and a removable filter unit F, preferably arranged on the washing products loading tray 440.
  • the filter unit F is configured to filter the dump air (from fluff and other residual laundry load fabrics) before being passed through the first HE 1 and second HE 2 heat exchangers.
  • the worktop 505 T comprises a, e.g. a plastic, base element 515 shaped and sized so as to define a number of housing sections adapted to house corresponding components of the air circulation system, and a cover assembly (globally denoted by number reference 520) for top covering the base element 515 and delimiting air paths therebetween (as discussed below).
  • a cover assembly (globally denoted by number reference 520) for top covering the base element 515 and delimiting air paths therebetween (as discussed below).
  • the base element 515 comprises housing sections 515 F , 515 HE1 , 515 HE2 , for housing the filter unit F, the first heat exchanger HE 1 , and the second heat exchanger HE 2 , respectively.
  • housing sections 515 F , 515 HE1 , 515 HE2 take most of a worktop top surface S TOP , exception made for (left and right) corner regions of the base element 515 (intended to other purposes, as discussed below).
  • a first covering panel 520 1 of the cover assembly 520 covers the base element 515 with the exception of the left corner region thereof - the space between the base element 515 (i.e., the housing sections 515 HE1 , 515 HE2 ) and the first covering panel 520 1 delimiting an air path that substantially identifies, together with filter unit F air path, the main duct 430.
  • a second covering panel 520 2 is instead provided on the first covering panel 520 1 for aesthetical issues.
  • the base element 515 comprises, e.g. at a substantially central part of the housing section 515 HE2 , a base opening 525, which is fluidly connected to the fan 125 ( e.g ., rigidly fixed to the base element 515, underneath it) and to the delivery duct 110 for allowing the drying air to be supplied into the laundry chamber 105.
  • the base opening 525 opens down to a fan 125 input
  • the delivery duct 110 arranged underneath the base element 515 as well, has a first end connector (not visible) for connection with a fan 125 output, and a second end connector (for example, an elongated-shaped connector, as illustrated) for connection with an opening of a bellow (not shown) that, as usual in washer/dryers, seals gap between the drum and the access door 510.
  • the base element 515 also comprises, e.g. at the left corner region thereof, a further base opening 530, which allows connection of the return duct 115 (carrying the dump air within it) from the output opening OUT 105 of the laundry chamber 105 to the filter unit F.
  • the base opening 530 also allows passage of un-channeled air circulating within the washer/dryer 500 (outside the air circulating system).
  • the dump air leaving the laundry chamber 105 is first supplied (through the return duct 115) through the filter unit F, and the filtered dump air output therefrom is then passed through the first heat exchanger HE 1 , where it is de-moisturized (with the condensed moisture that is properly collected and drained by a slot grid 535 of the base element 515 on which the first heat exchanger HE 1 rests).
  • the de-moisturized air is then passed through the second heat exchanger HE 2 , where it is heated-up, thereafter the drying air is supplied again (through the base opening 525, the fan 125 and the delivery duct 110) into the laundry chamber 105 (i.e., from a front thereof through the bellow opening).
  • the air duct 430 comprises an air passage 540 for allowing admission/access of ambient air A AIR into the washer/dryer cabinet 505.
  • air passage 540 may be provided at any suitable panel 505 T ,505 F ,505 S of the cabinet 505, and at any proper position thereof.
  • such air passage 540 is provided at the worktop 505 T , as the latter integrating the air circulation system within it (however, nothing prevents from providing the air passage 540 at the front 505 F or side 505 S panels, in which case joint members could be necessary for joining the air passage 540, at the front 505 F or side 505 S panels, to the input region of the air circulation system 400, at the worktop 505 T ).
  • the air passage 540 is provided at the base element 515 of the worktop 505 T .
  • the air passage 540 is configured as an air grid vertically extending (with respect to the floor where the washer/dryer 500 is intended to rest) between opposite top S TOP and bottom S BOTTOM surfaces of the base element 515 (however, any other configuration deemed suitable for the purpose can be conceived).
  • the air passage 540 is placed at a rear portion (e.g., at the right corner) of the base element 515 that, upon worktop 505 T mounting, protrudes with respect to washer/dryer 500 back. This generates a gap between the washer/dryer 500 back and a vertical wall (not shown) which the washer/dryer 500 is intended to lean against, which allows adequate ambient air A AIR intake.
  • Figure 5B also shows, at the left corner of the base element 515, a further air passage 545, similar to the air passage 540, configured to allow un-channeled air within the cabinet 505 to be vented outside the washer/dryer 500 (as indicated by arrows exiting from the worktop 505 T air passage 545).
  • Such un-channeled air may comprise (as in many washer/dryers) further ambient air intended to cool down the compressor heat pump, and/or (as discussed above for some contemplated embodiments of the invention) the compensation air C AIR .
  • Air passage 540 arrangement should take into account air passage 545 arrangement.
  • the air passages 540 and 545 are arranged far enough to substantially avoid, or at least limit, that the air exiting the air passage 545 gets back into the air passage 540 thereby frustrating drying air cooling.
  • the first 445 1 and second 445 2 sound suppressing/dampening portions are arranged on the top surface S TOP of the worktop base 515 such that the ambient air A AIR , after entering the air passage 540, are channeled within the air gap defined by them.
  • the ambient air A AIR is then channeled into a bottleneck portion 550 of the base element 515 fluidly connecting the air gap to the housing section 515 HE2 (or to any other input region of the air circulation system 400, as discussed above), thereafter mixing between ambient air A AIR and drying air takes place.
  • the air passage 540, the air gap between the first 445 1 and second 445 2 sound absorbing portions and the bottleneck portion 550 act, as a whole, as the secondary air duct 430.
  • Arrangement of the air passage 540, as well as sizing and shaping of the air gap and of the bottleneck portion 550, are adapted to meet specific design options.
  • a sufficiently narrow and curved bottleneck portion (as the illustrated bottleneck portion 550), is able to prevent the drying air from spreading without control through the secondary air duct 430.
  • air passage 540, air gap and/or bottleneck portion 550 reciprocal arrangements, shaping and sizing could meet local pressures differences issues.
  • a pressure at the input region of the air circulation system 100 sufficiently lower than ambient pressure would allow ambient air A AIR taking/drawing by pressure unbalance, without requiring any additional fans.
  • the drying air/ambient air A AIR mixture is supplied to the laundry chamber 105, thereafter at least a part thereof (compensation air C AIR ) is vented outside the washer/dryer 500 through the washing products dispensing arrangement 435 and the loading tray 440 connected thereto (as discussed herebelow).
  • At least part of the compensation air C AIR leaving the laundry chamber 105 and flowing, through the dispensing arrangement 435, up to the loading tray 440 is vented through interstices of the loading tray 440 (not distinguishable) allowing opening/closing movements thereof.
  • compensation air C AIR venting is further achieved by means of an overflow-preventing system typically provided in washer/dryers for preventing liquids (e.g ., washing products and/or water) from overflowing out of the washer/dryer 500, for example through the loading tray 440, upon a fault occurrence (e.g., water pump closure fail).
  • the overflow-preventing system per se well known in the art, comprises a draining channel 555 (part of which visible in Figure 5D ), preferably arranged at a side of the loading tray 440 and at predefined height.
  • the liquids When, as a result of a fault, the liquids, rising up within the laundry chamber 105, reach the loading tray 440, they reach a limit level (given by said predefined height), and the exceeding liquids are drained (through the draining channel 555) to a proper liquid container (not shown) arranged within the washer/dryer 500, where a liquid detection system (also not shown) is provided.
  • the liquid detection system Upon detection of a predefined liquids amount, the liquid detection system completely stops washer/dryer 500 operation, thereby preventing liquids from overflowing out of the washer/dryer 500 via the loading tray 440 and from causing flooding of the user premises where the washer/dryer 500 is placed.
  • the compensation air C AIR (or a part thereof) can flow through the overflow-preventing system, and vent inside the washer/dryer 500.
  • the overflow-preventing system is in fluid communication with the air passage 545, such that, compensation air C AIR (or a part thereof) which has been vented inside the washer/dryer 500, can be exhausted outside the washer/dryer cabinet 505.
  • the fluff-laden compensation air C AIR leaving the laundry chamber 105 and flowing up the washing product dispensing arrangement 435 may cause fluff to accumulate within, thereby dirtying, the loading tray 440. Such fluff may mix to washing products and negatively affect washing operation of the washer/dryer 500.
  • the washing products dispensing arrangement 435 preferably in the form of a pipe, is preferably provided with a downwards protruding pipe portion 560 ( Figure 5D ) adapted to be at least partially filled, during drying operation mode, with a proper amount of water (a water well is thus formed along the compensation air C AIR path).
  • a water well is thus formed along the compensation air C AIR path.
  • any component thereof may be separated into several elements, or two or more components may be combined into a single element; in addition, each component may be replicated for supporting the execution of the corresponding operations in parallel.
  • any interaction between different components generally does not need to be continuous (unless otherwise indicated), and it may be both direct and indirect through one or more intermediaries.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Claims (13)

  1. Wäschebehandlungsmaschine (500), die einen Schrank (505), eine vom Schrank (505) umschlossene Wäschebehandlungskammer (105) zum Aufnehmen von zu trocknender Wäsche und eine Arbeitsfläche (505T) oben auf dem Schrank (505) umfasst, wobei die Arbeitsfläche (505T) ein Prozessluftumlaufsystem (100-400) integriert, das angepasst ist, um Prozessluft kontinuierlich durch die Wäschebehandlungskammer (105) zu zirkulieren, dadurch gekennzeichnet, dass
    die Arbeitsfläche (505T) umfasst:
    einen Luftkanal (130-430), um Umgebungsluft (AAIR) zu ermöglichen, in das Prozessluftumlaufsystem (100-400) einzutreten und sich mit der Prozessluft zu vermischen, wodurch eine Überhitzung dieser vermieden wird, wobei die Wäschebehandlungskammer (105) eine Öffnung (OUT105,S) umfasst, um einer Menge von Prozessluft (CAIR) darin zu ermöglichen, das Luftumlaufsystem (100-400) zu verlassen, wodurch im Wesentlichen die darin hinzugefügte Umgebungsluft (AAIR) kompensiert wird; und
    einen weiteren Luftdurchlass (545), der konfiguriert ist, nicht geleitete Luft im Inneren des Schranks (505) außerhalb der Maschine zu entlüften, wobei zumindest ein Teil der Menge von Prozessluft (CAIR) außerhalb der Maschine durch den weiteren Luftdurchlass (545) nicht geleitet entlüftet wird.
  2. Wäschebehandlungsmaschine (500) nach Anspruch 1, wobei die Wäschebehandlungsmaschine ein Waschtrockner (500) ist, der in Wasch- und/oder Trocknungsbetriebsmodi betrieben werden kann, wobei der Waschtrockner (500) eine Waschmittelabgabeanordnung (435) umfasst, die fluidisch mit der Öffnung (OUT105,s) verbunden ist, um bei Betrieb im Waschmodus Waschmittel an die Wäschebehandlungskammer (105) abzugeben, wobei mindestens ein Teil der Menge der entlüfteten Prozessluft (CAIR) durch die Waschmittelabgabeanordnung (435) außerhalb des Waschtrockners (500) geleitet wird.
  3. Wäschebehandlungsmaschine (500) nach Anspruch 2, die ferner eine Waschmittelaufnahmetasse (440) umfasst, die an einer Vorderseite der Arbeitsfläche (505T) angeordnet ist, um eine Aufnahme von Waschmittel zu ermöglichen, wobei die Waschmittelaufnahmetasse (440) fluidisch mit der Waschmittelabgabeanordnung (435) verbunden ist, wobei zumindest ein Teil der Menge der Prozessluft (CAIR) außerhalb der Maschine durch Fugen der Aufnahmetasse (440) entlüftet wird, was öffnende/schließende Bewegungen dieser ermöglicht.
  4. Wäschebehandlungsmaschine (500) nach einem der Ansprüche 1 bis 3, wobei die Wäschebehandlungsmaschine ein Waschtrockner (500) ist, der in Wasch- und/oder Trocknungsbetriebsmodi betrieben werden kann, wobei die Maschine (500) ferner ein Überlaufverhinderungssystem (555) umfasst, das verhindert, dass im Inneren der Wäschebehandlungskammer (105) eingeführte Flüssigkeiten aus dem Waschtrockner (500) überlaufen, wobei zumindest ein Teil der Menge der Prozessluft (CAIR) in das Überlaufverhinderungssystem (555) strömt und daher im Inneren des Waschtrockners (500) entlüftet wird.
  5. Wäschebehandlungsmaschine (500) nach Anspruch 4, wobei das Überlaufverhinderungssystem (555) in fluidischer Verbindung mit dem weiteren Luftdurchlass (545) ist.
  6. Wäschebehandlungsmaschine (500) nach einem der Ansprüche 2 bis 5, wenn diese direkt oder indirekt von Anspruch 2 oder 3 abhängen, wobei die Waschmittelabgabeanordnung (435) einen nach unten vorstehenden Rohrabschnitt (560) umfasst, der konfiguriert ist, im Trocknungsbetriebsmodus mit einer vordefinierten Menge Wasser gefüllt zu werden, sodass Fusseln im Wasser gehalten werden, wenn die Menge der Prozessluft (CAIR) durch die Waschmittelabgabeanordnung (435) geleitet wird.
  7. Wäschebehandlungsmaschine (500) nach einem der vorangehenden Ansprüche, wobei die Arbeitsfläche (505T) entlang des Prozessluftumlaufsystems (100;400) einen ersten (HE1) und einen zweiten (HE2) Wärmetauscher einer Wärmepumpenvorrichtung beherbergt, wobei der Luftkanal (130;430) der Umgebungsluft (AAIR) ermöglicht, in das Prozessluftumlaufsystem (100;400) durch einen Eingangsbereich dieses dem zweiten oder dem ersten Wärmetauscher (HE2,HE1) entsprechend einzutreten.
  8. Wäschebehandlungsmaschine (500) nach einem der Ansprüche von 1 bis 6, wobei die Arbeitsfläche (505T) entlang des Prozessluftumlaufsystems (200) einen ersten (HE1) und einen zweiten (HE2) Wärmetauscher einer Wärmepumpenvorrichtung beherbergt, wobei der Luftkanal (230) der Umgebungsluft (AAIR) ermöglicht, in das Prozessluftumlaufsystem (200) durch einen Eingangsbereich dieses zwischen dem ersten (HE1) und dem zweiten (HE2) Wärmetauscher einzutreten.
  9. Wäschebehandlungsmaschine (500) nach einem der vorangehenden Ansprüche, wobei der Luftkanal (430) einen vergrößerten Abschnitt (445) umfasst, der als ein Resonanzhohlraum fungiert, der durch ein Strömen der Umgebungsluft (AAIR) verursachte Schallwellen in seinem Inneren unterdrückt/dämpft.
  10. Wäschebehandlungsmaschine (500) nach einem der vorangehenden Ansprüche, wobei der Luftkanal (430) einen ersten (4451) und einen zweiten (4452) schallunterdrückenden/-dämpfenden Abschnitt zum Unterdrücken/Dämpfen von durch ein Strömen der Umgebungsluft (AAIR) verursachten Schallwellen umfasst, wobei der erste (4451) und der zweite (4452) schallunterdrückende/-dämpfende Abschnitt in einem Abstand voneinander angeordnet sind, um einen Luftspalt zwischen ihnen für das Strömen der Umgebungsluft (AAIR) zu definieren.
  11. Wäschebehandlungsmaschine (500) nach einem der vorangehenden Ansprüche, wobei der Luftkanal (430) einen Luftdurchlass (540) umfasst, der an einer Tafel (505T,505F,505S) des Schranks (505) vorgesehen ist, wobei die Umgebungsluft (AAIR) durch den Luftdurchlass (540) und daher durch den Luftkanal (430) in das Innere des Schranks (505) gelassen wird.
  12. Wäschebehandlungsmaschine (500) nach Anspruch 11, wenn dieser von Anspruch 10 abhängt, wobei sich der Luftdurchlass (540) zwischen der oberen (STOP) und unteren (SBOTTOM) Oberfläche einer Arbeitsflächenbasis (515) und einem hinteren Abschnitt dieser erstreckt, wobei der erste (4451) und der zweite (4452) schallunterdrückende/- dämpfende Abschnitt auf der oberen Oberfläche (STOP) der Arbeitsflächenbasis (515) so angeordnet ist, dass die Umgebungsluft (AAIR) nach dem Eintreten in den Luftdurchlass (540) innerhalb des Luftspalts geleitet wird.
  13. Wäschebehandlungsmaschine (500) nach Anspruch 12, wenn dieser von Anspruch 7 oder 8 abhängt, wobei die Arbeitsflächenbasis (515) einen verengten Abschnitt (550) aufweist, der den Luftspalt mit dem Umgebungslufteingangsbereich des Luftumlaufsystems (100-400) fluidisch verbindet, wobei der verengte Abschnitt (550) verhindert, dass die Prozessluft durch den Luftspalt und den Luftdurchlass (540) in die Umgebung diffundiert.
EP13182331.2A 2013-08-30 2013-08-30 Wäschebehandlungsmaschine mit Überhitzungsvermeidungssystem Active EP2843119B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP13182331.2A EP2843119B1 (de) 2013-08-30 2013-08-30 Wäschebehandlungsmaschine mit Überhitzungsvermeidungssystem
PL14161141T PL2843111T3 (pl) 2013-08-30 2014-03-21 Maszyna do suszenia prania
EP14161141.8A EP2843111B1 (de) 2013-08-30 2014-03-21 Wäschetrocknermaschine
AU2014314258A AU2014314258B2 (en) 2013-08-30 2014-08-27 Laundry appliance having overheating preventing system
CN201480048075.5A CN105492681B (zh) 2013-08-30 2014-08-27 具有防过热系统的洗衣设备
PCT/EP2014/068152 WO2015028500A1 (en) 2013-08-30 2014-08-27 Laundry appliance having overheating preventing system

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Application Number Priority Date Filing Date Title
EP13182331.2A EP2843119B1 (de) 2013-08-30 2013-08-30 Wäschebehandlungsmaschine mit Überhitzungsvermeidungssystem

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EP2843119A1 EP2843119A1 (de) 2015-03-04
EP2843119B1 true EP2843119B1 (de) 2017-10-11

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CN105492681B (zh) 2018-01-26
AU2014314258A1 (en) 2016-03-10
WO2015028500A1 (en) 2015-03-05
CN105492681A (zh) 2016-04-13
EP2843119A1 (de) 2015-03-04
AU2014314258B2 (en) 2019-01-17

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