WO2015101388A1 - Appareil de traitement de linge comportant un système de lavage de filtre à peluches - Google Patents

Appareil de traitement de linge comportant un système de lavage de filtre à peluches Download PDF

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Publication number
WO2015101388A1
WO2015101388A1 PCT/EP2013/078132 EP2013078132W WO2015101388A1 WO 2015101388 A1 WO2015101388 A1 WO 2015101388A1 EP 2013078132 W EP2013078132 W EP 2013078132W WO 2015101388 A1 WO2015101388 A1 WO 2015101388A1
Authority
WO
WIPO (PCT)
Prior art keywords
condensate
pump
laundry treatment
collector
washing
Prior art date
Application number
PCT/EP2013/078132
Other languages
English (en)
Inventor
Alberto Bison
Nicola Reid
Giuseppe Rossi
Original Assignee
Electrolux Appliances Aktiebolag
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 Aktiebolag filed Critical Electrolux Appliances Aktiebolag
Priority to EP13815530.4A priority Critical patent/EP3090095B1/fr
Priority to PL13815530T priority patent/PL3090095T3/pl
Priority to PCT/EP2013/078132 priority patent/WO2015101388A1/fr
Publication of WO2015101388A1 publication Critical patent/WO2015101388A1/fr

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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 
    • D06F58/22—Lint collecting 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
    • 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
    • D06F2103/42—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to filters or 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/34—Filtering, e.g. control of lint removal devices
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters

Definitions

  • the invention relates to a laundry treatment apparatus, in particular dryer, condensate dryer, heat pump tumble dryer or washing machine having a dryer function, the apparatus comprising a fluff filter and a washing liquid collector arranged for collecting liquid carrying fluff washed off from the filter surface.
  • 5 DE 10 2007 060 851 Al discloses a laundry treatment apparatus and a method for fluff removal in a laundry treatment apparatus with a process air channel for guiding a flow of process air through a laundry drum and comprising a filter for removing fluff from the process air.
  • the laundry treatment apparatus comprises a mechanism for washing fluff from the filter by means of a washing liquid.
  • An additional washing liquid filter is arranged o for cleaning the contaminated washing liquid by removing the fluff contained therein.
  • DE 10 2008 054 832 Al teaches an apparatus and a method for cleaning a device arranged within a process air circuit, wherein a liquid condensed from the process air is guided to a condensate tank from where it is flowing to the device for the cleaning process.
  • a fluff 5 filter is arranged separately from the condensate tank and adapted for removing fluff from the condensed liquid before it reaches the condensate tank.
  • a laundry treatment apparatus in particular dryer, condensate dryer, 5 heat pump tumble dryer, or washing machine having a dryer function, comprises a control unit, an apparatus cabinet, a laundry treatment chamber, and a fluff filter.
  • the control unit is arranged for controlling the operation of the laundry treatment apparatus.
  • the laundry treatment chamber is adapted for treating laundry stored therein using process air that is circulated in a process air circuit.
  • the process air is cooled at a heat exchanger arranged in the process air circuit whereby humidity carried by the process air is condensed, and a condensate collector is assigned to the heat exchanger for collecting the condensate 5 condensed at the heat exchanger.
  • the fluff filter is arranged in the process air circuit
  • the fluff filter is arranged in the process air channel between the laundry treatment chamber and the heat exchanger.
  • a washing liquid collector adapted to collect washing liquid from the fluff filter.
  • a condensate pump0 is arranged in liquid connection to the condensate collector and adapted to convey the collected condensate into an intermediate tank for storing condensate for fluff filter washing.
  • a washing pump is arranged in liquid connection to the intermediate tank and adapted to convey stored condensate from the intermediate tank to the fluff filter for washing at least a portion of the filter surface by removing fluff.
  • the collected 5 condensate is provided from an outlet or nozzle such that the entire or essentially the entire filter surface filtering fluff is washed.
  • the only inflow of the intermediate tank is the conduit connecting the outlet of the condensate pump and the inlet of the intermediate tank.
  • condensate is o intermediately stored in the intermediate tank. No contaminated liquid (liquid
  • washing liquid condensate that is supplied to the fluff filter for filter washing.
  • 'contaminated' means that the liquid comprises fluff or other contaminants or particles collected at the fluff filter during a drying process.
  • the 'washing liquid' is not contaminated as it is formed by the condensate which is not or only extremely minimally contaminated by fluff that unintentionally passed the fluff filter o towards the heat exchanger.
  • the storing capacity (e.g. volume) of the condensate collector and/or the storing capacity (e.g. volume) of the intermediate tank is adjusted so that it is possible to wash the fluff filter only when required, e.g. once after each or several laundry treatment 5 cycles.
  • the fluff filter is washed at one or more predetermined points in time during a laundry treatment cycle. More preferably, the fluff filter is washed under the control of the control unit.
  • a fluff detection mechanism is arranged for detecting the amount of fluff on the fluff filter and/or the grade of filter clogging and the fluff filter is washed in dependence on the detected amount of fluff on the filter and/or the grade of filter clogging.
  • the condensate pump can be activated to convey condensate from the condensate collector to the intermediate tank where the condensate can be stored until the next fluff filter washing cycle. In this way, unnecessary wetting of the fluff filter is avoided and the energy consumption of the o laundry treatment apparatus can be reduced.
  • activations of the condensate pump and the washing pump are controlled so that a certain minimal amount of condensate is kept in the intermediate tank whenever possible.
  • the condensate pump is arranged to pump condensate to the intermediate tank without any (further intermediate) condensate storage.
  • the washing pump conveys condensate stored in the intermediate tank to the fluff filter without any (further 0 intermediate) condensate storage.
  • the condensate collector is dedicated exclusively to the heat exchanger, i.e. it exclusively collects condensate from the heat exchanger and receives no or substantially no liquid from other sources, in particular no or essentially no washing liquid from filter 5 washing.
  • washing liquid from filter washing is received by a washing liquid collector that is separate from the condensate collector.
  • 'Separate' from the condensate collector preferably means that there is no fluid connection between the condensate collector and the washing liquid collector such that liquid can freely flow between both and/or there is not fluid connection that under normal operation conditions of the apparatus o allows contaminated liquid from the washing liquid collector to flow into the condensate collector.
  • a condensate overflow is arranged at the intermediate tank, the condensate overflow being adapted to allow excess condensate in the intermediate tank to pass from the intermediate tank to the washing liquid collector. Allowing excess condensate to leave the intermediate tank, e.g. via a condensate overflow, helps to avoid 5 unnecessary washing and thereby wetting of the fluff filter, because the washing pump does not need to be activated even when the condensate collector and/or the intermediate tank are full.
  • the fluff filter is designed such that the washing liquid is flowing along the surface of the filter from where the washing liquid is applied and such that no or substantially no washing liquid is passing through the fluff filter.
  • At least one washing liquid outlet and/or nozzle for applying the washing liquid to the fluff filter is arranged relative to the fluff filter such that the washing liquid is applied at that side of the fluff filter which is exposed to the fluff transported in the process air from the laundry treatment chamber.
  • at least one washing liquid outlet and/or nozzle for applying the washing liquid to the fluff filter is arranged such that the o washing liquid is applied to the fluff filter surface at a flat angle with respect to the
  • the fluff filter structure and/or at least one surface or portion of at least one surface of the fluff filter is adapted to be hydrophobic, i.e. water repellant. More preferably, at least that surface or that portion of surface of the fluff filter is adapted to be hydrophobic, at which the washing liquid is applied for filter 5 washing.
  • washing liquid may flow over the fluff filter or at least a portion of the fluff filter surface carrying away the fluff from the fluff filter while process air passes through the fluff filter for removing fluff from the process air.
  • process air passes through the fluff filter for removing fluff from the process air.
  • no or essentially 0 no washing liquid passes through the fluff filter during this process.
  • the washing liquid is not filtered for removing fluff from the contaminated washing liquid.
  • the laundry treatment apparatus further comprises a drain pump in liquid connection to the washing liquid collector to convey the contaminated washing 5 liquid to a drain outlet for draining the contaminated washing liquid to a contaminated washing liquid sink.
  • the contaminated washing liquid sink is the exterior of the apparatus cabinet and/or a removable tank installed in the apparatus cabinet.
  • a washing liquid outlet is arranged at the outside of the apparatus cabinet allowing the user to attach a liquid channel for directing the contaminated washing liquid into an external o liquid container and/or a home sink.
  • the drain pump is arranged within the apparatus cabinet either between a process air fan or a cooling air fan and a front wall of the apparatus cabinet or between a heat pump refrigerant compressor and a front wall of the apparatus cabinet.
  • the 5 drain pump is arranged within the apparatus cabinet at or close to the front wall of the apparatus.
  • the cooling air fan is a fan adapted to convey ambient air from outside the treatment apparatus cabinet over a heat pump system compressor and/or over or through an air/air heat exchanger and/or over an auxiliary heat exchanger for cooling the refrigerant in a heat pump system.
  • the air/air heat exchanger is for example a cross-flow or anti-parallel flow heat exchanger and/or a heat exchanger in which the conveyed ambient air is used to cool the process or drying air was flown through the laundry storing compartment for drying the laundry.
  • An air/air heat exchanger is for example used in a condenser-type dryer not having a heat pump system.
  • the laundry treatment apparatus further comprises a condensate directing means receiving the condensate pumped by the condensate pump and adapted to selectively direct the condensate flow under the control of the control unit to one or more of the following: to the fluff filter for washing at least a portion of the filter surface by removing fluff; to an intermediate tank; and/or to a condensate sink.
  • the directing means is adapted to selectively direct the condensate flow under the control of the control unit either to a condensate sink or to the fluff filter for filter washing.
  • the condensate sink to which condensate can be directed by a condensate directing means is one of the following: the washing liquid collector, a drain outlet for draining the excess condensate to the exterior of the apparatus cabinet, and/or a or the removable tank.
  • the outlet of the condensate directing means which directs the condensate flow towards the condensate sink is connected to an inlet of a conduit, wherein the conduit has an outlet and wherein a siphon is arranged in the conduit between the inlet and outlet such as to avoid an airflow through the conduit due to an air pressure difference between the ends of the conduit when the condensate pump is stopped.
  • a 'siphon' provided in or at a conduit or at a condensate or washing water collector.
  • a pressure difference may exist or build up during operation of the apparatus.
  • a pressure drop may arise (increasing for example with processing time through the fluff filter and/or the laundry storing cabinet).
  • the air pressure difference may cause an air flow through the passage or conduit.
  • ambient air may be drawn into the otherwise closed process air loop or process air may be exhausted to the outside or the intended process air path is bypassed (e.g. around the fluff filter or the evaporator).
  • the siphon is provided in or at the conduit or opening such that it is filled with water (condensate or washing liquid) so that the pressure difference can not remove the water sealing in the siphon and no air passes through the conduit or opening.
  • the (or each or some of the siphons) is replaced by a 1 -way valve that is closed in the inactivated state (no control signal from control unit to open the valve) or is replaced by a check or back-pressure valve for preventing air flow due to a pressure difference.
  • the outlet of the conduit may supply the condensate into one or more of the following: a removable tank and/or a housing thereof; an overflow collector and/or overflow passage for collecting overflow from a removable tank; an overflow collector and/or overflow passage for collecting overflow from a removable tank removably installed in the apparatus cabinet; the washing liquid collector.
  • the housing and/or the overflow collector and/or the overflow passage of the removable tank removably installed in the apparatus cabinet have an outlet and a liquid guide such that liquid is guided from the housing into the washing liquid collector.
  • the siphon and/or the condensate directing means is adapted to compensate or block pressure differences between the condensate collector and the condensate sink and/or also between the condensate collector and the conduit so as to prevent exhaustion of process air from the process air circuit towards the condensate sink, aspiration of external air into the process air circuit, and/or aspiration or reflow of liquid from the condensate sink back to the condensate collector.
  • the condensate directing means is adapted to fluidly seal off the connection between inlet of the condensate directing means and the outlet which directs the condensate flow towards towards the conduit and/or towards the condensate sink.
  • a closing valve is arranged in the condensate directing means for that purpose.
  • the condensate directing means is adapted to seal off said connection, because condensate flow from the condensate collector is stopped when the connection is sealed off, e.g. the closing valve is closed.
  • the condensate directing means seals off said connection automatically, e.g. by means of a normally-closed (NC) valve, or under the control of the control unit.
  • the laundry treatment apparatus further comprises a controllable draining directing means such that the liquid conveyed from the washing liquid collector is selectively and controllably directed to a drain outlet for draining the liquid to the exterior of the apparatus cabinet and/or to the removable tank installed in the apparatus cabinet.
  • the draining directing means is controlled by the control unit.
  • a washing liquid outlet is arranged at the outside of the apparatus cabinet allowing the user to attach a liquid channel for directing the liquid into an external liquid container and/or a home sink.
  • the laundry treatment apparatus further comprises a washing liquid outlet and/or a nozzle for applying the washing liquid to the fluff filter, a conduit connecting the washing pump and the nozzle, and a siphon formed in the conduit for avoiding the liquid flow until the pump is not started and blocking an air flow through the conduit due to pressure differences through the conduit and/or for interrupting the liquid flow from the intermediate tank to the washing liquid outlet and/or nozzle after deactivating the washing pump.
  • a means for fluidly sealing off the connection between the intermediate tank and the washing liquid outlet and/or nozzle is arranged for interrupting the liquid flow.
  • said means for fluidly sealing off the connection between the intermediate tank and the washing liquid outlet and/or nozzle seals off said connection automatically (like, e.g., a normally-closed valve), or under the control of the control unit.
  • said means for fluidly sealing off the connection between the intermediate tank and the washing liquid outlet and/or nozzle is integrated into the washing pump.
  • the inlet of the washing pump is connected by a conduit to an outlet of the intermediate tank.
  • the inlet of the washing pump is in direct connection to the intermediate tank.
  • the washing pump is integrated into the intermediate tank or into the housing of the intermediate tank.
  • the outlet of the condensate pump is connected by a conduit to an inlet of the intermediate tank.
  • the outlet of the condensate pump is in direct connection to the intermediate tank.
  • the condensate pump is arranged at or integrated at or into the condensate collector.
  • the fluff filter is arranged in the process air circuit downstream of the laundry treatment chamber. In this way, the fluff filter can remove fluff carried by the process air flow after passing the laundry treatment chamber.
  • the fluff filter is positioned in a front region within the apparatus cabinet and/or a bottom region within the apparatus cabinet and/or the basement of the apparatus. (Here and in the following the basement of the apparatus will also be denoted "base unit" of the apparatus.)
  • the fluff filter is not arranged at or adjacent to the loading door, in particular the fluff filter is not accessible via the loading door.
  • the fluff filter and/or the heat 5 exchanger is accessible via a removable or pivotably attached cover adapted to allow
  • the fluff filter is removable from the apparatus cabinet for cleaning.
  • the condensate collector is arranged in a base unit of the laundry treatment apparatus.
  • the washing liquid collector is arranged in the base unit of the laundry treatment apparatus.
  • the intermediate tank is arranged in or on top of the base unit of the treatment apparatus or is arranged laterally to and at a lower region of the laundry treatment chamber.
  • the intermediate tank is stationary, i.e. not 5 removable from the apparatus cabinet.
  • a removable tank housing of the removable tank comprises an overflow passage fluidly connected to the washing liquid collector via an overflow conduit for conveying to the washing liquid collector excess of condensate overflowing from the o removable tank.
  • a or the intermediate tank has an overflow passage and optionally a flow guiding element such that excess condensate flows from the intermediate tank to the washing liquid collector and/or to a or the removable tank and/or the condensate collector.
  • the condensate collector has an overflow passage and optionally a flow guiding element such that excess condensate flows from the condensate collector to the washing liquid collector and/or to a or the removable tank.
  • at least one siphon is arranged in at least one of the mentioned overflow passages and/or flow guiding elements, e.g. in order to prevent compensation of pressure differences between the o overflow passage(s) and the washing liquid collector and/or the removable tank.
  • the outlet of a or the washing pump is connected by a conduit to a washing outlet and/or nozzle for applying the condensate onto the filter surface.
  • the outlet of a or the washing pump is in direct connection to a washing outlet and/or 5 nozzle.
  • a washing outlet and/or nozzle is integrated into the outlet of the
  • the draining pump and/or the condensate pump and/or a or the washing pump is a high conveyance rate pump and/or a centrifugal pump.
  • a high conveyance rate pump (in the following also denoted "high flow rate pump") is adapted for conveying a liquid at high pumping rate of preferably 20 1/min or above.
  • 'High' pumping 5 rate means here 'high' as compared to conventional draining pumps of a condensate or heat-pump-type dryer.
  • the draining pump and/or the condensate pump and/or the washing pump is adapted for conveying a liquid at a minimum pumping rate of preferably 20 1/min or above.
  • the draining pump and/or the condensate pump and/or the washing pump is designed to avoid blocking of the pump by fluff and/or other o contaminations of the washing liquid and/or the condensate.
  • the condensate pump is a high conveyance rate pump whereas the condensate pump can be a smaller pump with a lower conveyance rate, which generates less noise. In that way it5 is possible to reduce the overall noise level of the laundry treatment apparatus, in particular because the condensate pump is usually operated more often than the washing pump.
  • the centrifugal pump is designed to have a spacing between an inner wall of the pump body and the outer extension of the conveying blades such that the spacing enables o solid contaminants to pass from the pump inlet to the pump outlet between the conveying blades.
  • the laundry treatment chamber of the laundry treatment apparatus is a drum, preferably rotating about a horizontal axis or an axis that is slightly inclined to a 5 horizontal axis.
  • the laundry treatment apparatus further comprises a loading opening positioned at the front side of the apparatus cabinet for laundry loading to and discharging from the laundry treatment chamber.
  • the liquid storing capacity of the condensate collector is in the range of 0.51 -0 1.51, 11 - 21, 1.51 - 31, 1.51 - 41, 21 - 41, or 31 - 51, if the laundry treatment apparatus does not comprise an intermediate tank.
  • the liquid storing capacity of the condensate collector is in the range of 0.21 - 11, 0.41 - 11, 0.61 - 1.51, 11 - 21, or 11 - 41, if the laundry treatment apparatus also comprises an intermediate tank.
  • the liquid storing capacity of an intermediate tank is in the range of 11 - 21, 11 - 31, 21 - 31, 21 - 41, or 31 - 51.5
  • the liquid storing capacity of the washing liquid collector is equal to or larger than the liquid storing capacity of the intermediate tank, if the laundry treatment apparatus comprises an intermediate tank for storing condensate to be used for filter washing.
  • the liquid storing capacity of the washing liquid collector is equal to or smaller than the liquid storing capacity of the condensate collector, independent whether the laundry treatment apparatus comprise an intermediate tank for storing condensate used for filter washing or not.
  • the storing capacity of the washing liquid collector is larger than the one of the condensate collector. More preferably, the liquid storing capacity of the washing liquid collector is in the range of 0.21 - 11, 0.41 - 11, 0.61 - 1.51, 11 - 21, 11 - 31, 1.51 - 31, 1.5 - 41, 21 - 41, or 31 - 51.
  • the condensate collector is arranged vertically above the washing liquid collector or preferably in one vertical level or essentially in one vertical level with the washing liquid collector.
  • the maximum level of condensate in the condensate collector is higher than the maximum level of contaminated washing liquid in the washing liquid collector, e.g. if an overflow is arranged at the condensate collector to allow excess condensate in the condensate collector to pass from the condensate collector to the washing liquid collector. In that way, contaminated washing liquid can be avoided to pass the overflow in reverse direction into the condensate collector.
  • a or the drain pump is fluidly connected to the washing liquid collector, and when the drain pump is activated the contaminated washing liquid flows from the washing liquid collector towards a drain outlet for draining the excess of liquid to the exterior of the apparatus cabinet and/or towards a removable tank without passing through the condensate collector.
  • the washing liquid collected in the washing liquid collector is not filtered, e.g. not filtered in a fluff filter.
  • the condensate collector is arranged and screened such that under normal operation condition of the laundry apparatus no water contaminated with fluff can flow into or can be collected in the condensate collector.
  • the condensate collector is mechanically and fluidly separated in a way that no water contaminated with fluff (contaminated water), in particular no washing liquid that was used for washing the fluff filter, can flow to the condensate collector.
  • the condensate collector is arranged and screened such that only condensate formed by condensation at the heat exchanger is collected in the condensate collector without being mixed with water that was (after filtering) or is contaminated water.
  • the heat exchanger for cooling the process air and condensing humidity from the process air is a first heat exchanger of a heat pump system including a second heat exchanger for heating the process air.
  • the heat pump system further includes a compressor, expansion means, and a refrigerant that circulates through the heat pump system, wherein the first heat exchanger is adapted to heat up the refrigerant and the second heat exchanger is adapted to cool down the refrigerant.
  • Fig. 1 a perspective side view of a laundry treatment apparatus
  • FIG. 2a, 2b, 2c schematic views of different embodiments of a laundry treatment
  • FIG. 3, 4, 5 further schematic views of further embodiments of a laundry treatment
  • Fig. 6a a perspective front view of the base unit in an embodiment of a laundry
  • Fig. 6b a perspective front view of a collector cover
  • Fig. 6c a sectional view of the basement from apparatus front (right side in figure) to apparatus rear (left side of figure) through a condensate collector
  • Fig. 6d a sectional view of the basement from apparatus front (right side) to apparatus rear (left side) through a washing liquid collector which is in front (with respect to the drawing plane) of the condensate collector shown in Fig. 6c
  • Fig. 7 a perspective rear view of the base unit in an embodiment of a laundry treatment apparatus
  • Fig. 8a another perspective front view of the base unit in an embodiment of a laundry treatment apparatus
  • Fig. 8b another perspective rear view of the base unit in an embodiment of a laundry treatment apparatus
  • Fig. 9 a perspective rear view of an embodiment of a laundry treatment apparatus
  • Fig. 10 a perspective front view of another embodiment of a base unit in a laundry treatment apparatus
  • FIG. 11 another perspective front view of the embodiment of the base unit shown in Fig.
  • Fig. 12a a perspective view of an embodiment of a high conveyance rate pump
  • Fig. 12b a sectional view of the high conveyance rate pump
  • Fig. 12c a sectional view of another embodiment of a high conveyance rate pump.
  • Fig. 1 shows a perspective side view of a laundry treatment apparatus 2 - in this arrangement a heat pump tumble dryer - with an apparatus cabinet 3 and comprising a base unit 30 above which a laundry drum 4 is arranged.
  • the laundry treatment apparatus 2 is a front-loading type, i.e. a loading opening 6 for loading laundry into the drum 4 is provided at a front face of the apparatus 2 that can be covered and closed by a loading door 5 shown in the opened state.
  • a heat exchanger 38 for cooling process air downstream the drum 4 is arranged within the base unit 30.
  • a filter arrangement 10 (shown partially removed) is adapted to filter process air. In the embodiment shown, it is arranged at the loading opening 6 in a section of the process air channel 24 downstream the drum 4 and upstream the heat exchanger 38. Process air from the drum 4 is guided through the filter arrangement 10, whereby fluff is removed from the process air flow. The filtered process air is conveyed through the process air channel section 24 downstream the filter arrangement 10 towards the heat exchanger 38 to be cooled down, i.e. to remove moisture from the process air which condensates at the heat exchanger 38. The liquid condensed at the heat exchanger is collected in the condensate collector 32 (see Fig. 2a).
  • a second heat exchanger (not shown) is provided downstream the heat exchanger 38 for heating the process air before the heated process air is reintroduced into the laundry drum 4.
  • a front portion of the base unit 30 is opened by opening a base panel door 15 and opening a removable cover 14 arranged behind the base panel door 15 to allow a view of the heat exchanger 38 and a section 24 of the process air channel which is upstream the heat exchanger 38 and downstream the filter arrangement 10.
  • the removable or pivotably attached cover 14 (compare also Fig. 7) is adapted to cover and close the opening at that part of the channel section to allow inspection and service of the heat exchanger 38 and/or other components such as a fluff filter 36 according to another embodiment (see below).
  • the fluff filter 36 is arranged in the base unit in the process air flow A upstream the heat exchanger 38 and downstream the process air channel section 24.
  • no filter arrangement 10 as the one in the embodiment of Fig. 1 is provided (here Fig. 1 is provided for illustrative purposes showing the typical exterior of the apparatus).
  • Fig. 2a is a schematic view of an embodiment of the laundry treatment apparatus 2 comprising the apparatus cabinet 3, a control unit 16, the laundry treatment chamber 8, a process air circuit (a section 24 of which is shown in Fig. 1), the heat exchanger 38, a condensate collector 32, the fluff filter 36, the optional filter arrangement 10, a condensate pump 52, and a washing liquid collector 34.
  • the control unit 16 is for controlling the operation of the apparatus 2, e.g. according to at least one predetermined laundry treatment program selected by the user.
  • the laundry to be treated is stored inside the laundry treatment chamber 8, which may be formed as a drum 4 rotatable around a horizontal axis and being accessible through a loading opening 6.
  • the process air circuit circulates a flow of process air A which passes through the laundry inside the laundry drum.
  • a process air fan (not shown) is arranged in a rear section of the process air circuit and is adapted to create the process air flow.
  • the process air A is guided through the process air channel section 24 with the optional filter arrangement 10 that can remove fluff from the air flow.
  • the process air A then passes through the fluff filter 36 for removal of (remaining) fluff 5 before reaching the heat exchanger 38 by which it is cooled down. Due to the below
  • the filter arrangement 10 is not required and all fluff can efficiently be filtered using the fluff filter 36 as single fluff filter.
  • part of the humidity carried by the process air stream condenses0 creating a condensate C that is collected in the condensate collector 32.
  • the dried flow of process air A is heated.
  • the second heat exchanger 40 condenser
  • the process air is heated by an electric heater arranged in the process air circuit downstream the first heat exchanger5 38. Downstream the heater the process air is then guided back to the laundry treatment chamber 8.
  • the condensate pump 52 is arranged in liquid connection to the condensate collector 32 and adapted to provide the condensate to the fluff filter 36 for washing at least a portion of o the filter 36.
  • the condensate pump 52 is a high conveyance rate pump,
  • high conveyance rate pump and “high flow rate pump” are used to denote a pump arranged for conveying a liquid at a minimum pumping rate of preferably 20 1/min or above.
  • a liquid conduit 66 is arranged for guiding the condensate from the outlet of the condensate pump 52 to a washing outlet or washing nozzle where it is conveyed as a washing liquid L to the fluff filter 36. After washing the filter 36 (or at least a portion of it), the washing liquid L is collected in the washing liquid collector 34.
  • the o fluff filter 36 and the washing liquid collector 34 are arranged such that the washing liquid flows along at least a portion of the surface of the fluff filter and carries fluff washed off from the surface into the washing liquid collector 34.
  • the washing liquid collector is adapted to collect the contaminated washing liquid.
  • the fluff filter 36 is arranged such that the washing liquid L is flowing along the surface of the filter from where the washing liquid is applied and such that no or only very little washing liquid L passes through the fluff filter.
  • the washing outlet/nozzle 68 is arranged relative to the fluff filter 36 in such a way that the washing liquid L is applied to that side of the fluff filter 36 which is exposed to the fluff transported in the process air A and/or in such a way that no or only very little washing liquid L passes through the filter 36.
  • the laundry treatment apparatus further comprises a drain pump 72 in liquid connection to the washing liquid collector 34 for conveying the contaminated washing liquid L to a drain outlet 74.
  • the drain pump 72 is a high flow rate pump, preferably comprising a rotor (see also below).
  • the drain outlet 74 is o adapted to drain the contaminated washing liquid L to a contaminated washing liquid sink such as a removable tank 12 as shown in Fig. 2a and/or to the exterior of the apparatus cabinet.
  • a liquid conduit may be provided at the outside of the cabinet for guiding the washing liquid to the user' s home sink and/or another means for dirty water removal.
  • a drain conduit 73 is arranged for directing the contaminated washing 5 liquid from the outlet of the drain pump 72 to the drain outlet 74.
  • the conduit comprises a siphon 73a (implementation e.g. as shown in Fig. 9) adapted to compensate potential pressure differences between the removable tank 12 and the outlet of the draining pump 72 and/or the washing liquid collector 34 when the draining pump is inactive.
  • the filter arrangement 10 is removable so that it can be cleaned by the user and clogging of the process air circuit by fluff in the filter arrangement can be avoided.
  • the filter arrangement 10 is adapted for removing larger fluff components from the process air before the process air reaches the fluff filter 36 where remaining fluff is filtered.
  • the fluff filter 36 and/or the described washing 5 mechanism are adapted to also remove larger fluff components so that the filter
  • the filter arrangement 10 is not needed. Such a design is particularly beneficial as it does not need cleaning of the filter arrangement by the user, it is simpler, and/or reduces production and/or operating costs of the laundry treatment apparatus.
  • the filter arrangement 10 is not shown in the embodiment depicted by the following figures. Nevertheless a skilled person o will notice that it can equally be applied in any one of these embodiments as appropriate.
  • a fixed or removable grill is positioned at the opening to the process air channel arranged at the frame at the loading opening 6.
  • the grill prevents laundry and foreign objects to fall into the process air channel and eventually reaching at the washing liquid collector.
  • the embodiment shown in Fig. 2b additionally (as compared to Fig. 2a) comprises a condensate directing means 54, e.g. valve, that receives the condensate C from the condensate pump 52 and directs it either to the fluff filter 36 for washing at least a portion of the fluff filter surface or to a condensate sink.
  • the condensate directing means 54 is controlled by the control unit 16, preferably through control signals sent from the control unit 16 to the condensate directing means 54 on a control signal line 18.
  • the condensate sink is the washing liquid collector 34 (as in the embodiment shown in Fig.
  • a liquid conduit 58 connects an outlet of the condensate directing means 54 to the condensate sink, here the washing liquid collector 34.
  • a siphon 58a may be arranged in the liquid conduit 58 in order to prevent an air flow through the conduit 58caused by a pressure difference between the two ends of the conduit and/or to stop the condensate flow from the condensate collector 32 through the condensate directing means 54 and the conduit 58 to the condensate sink when the condensate pump is inactive.
  • the condensate directing means is designed to fluidly seal off the inlet of the condensate directing means 54 from the outlet directing condensate to the conduit 66. I.e. in its default or non-activated position the condensate directing means 54 seals off the passage towards the conduit 66.
  • a siphon or 1 -way valve placed downstream to the directing means 54 is provided to seal off the passage towards or through the conduit 66.
  • the laundry treatment apparatus may comprise a direct condensate overflow 33 as shown in Fig. 3 for draining excess condensate from the condensate collector 32 to the washing liquid collector 34.
  • the condensate overflow 33 comprises a siphon (not shown), e.g. for compensating pressure differences between the condensate collector 32 and the washing liquid collector 34.
  • the condensate overflow allows excess condensate in the condensate collector to pass from the condensate collector to the washing liquid collector. Allowing excess condensate to leave the condensate collector and pass to the washing liquid collector helps to reduce operating noise of the laundry treatment apparatus, because the condensate pump does not need to be activated even when the condensate collector is full.
  • the fluff filter 36 is washed before it is clogged by fluff transported in the process air flow.
  • the fluff filter 36 is washed at the beginning or at the end of a laundry treatment program or sub-program. More preferably, washing the fluff filter 36 is avoided during an ongoing or running laundry treatment program or sub-program that requires drying of the process air flow, because washing the fluff filter 36 wets the filter whereby extra humidity is added to the process air A passing through it.
  • incorporating a condensate directing means 54 and/or a condensate overflow 33 is particularly beneficial because it enables draining or partial draining of the condensate 5 collector 32 when the condensate collector is full without the need of conveying
  • the condensate sink to which a condensate directing means 54 can direct the condensate C received from the condensate pump 52 may be the removable tank0 12 as shown schematically in Fig. 4.
  • a liquid conduit 58 serves for guiding the condensate C from the condensate directing means 54 to the removable tank 12, more particularly the condensate is supplied to the removable tank housing from which the water flows spontaneously to the washing liquid collector or is supplied to an overflow passage of the removable tank.
  • a siphon 58a is preferably arranged in the conduit 58 in order to
  • An overflow conduit 78 is arranged to guide liquid from the removable tank overflow passage 76 to the washing liquid collector 34 and/or to o another liquid sink such as an outlet at the apparatus cabinet and/or an external tank.
  • a siphon 78a is arranged in the overflow conduit 78 in order to compensate pressure differences between the overflow passage 76 and the washing liquid collector 34 and/or another liquid sink and/or to interrupt liquid flow from the overflow passage 76 to the washing liquid collector 34 and/or another liquid sink.
  • housing 75 of the removable tank 12 can be provided in each of the other embodiments.
  • Fig. 2c schematically depicts an embodiment of a laundry treatment apparatus 2 further comprising an intermediate tank 60 adapted for intermediate storage of condensate C and a o washing pump 64 for conveying the condensate from the intermediate tank to the fluff filter 36 for fluff filter washing.
  • the condensate pump 52 pumps the condensate C from the condensate collector to the intermediate tank 60 through a liquid conduit 56 connecting the outlet of the condensate pump 52 and an inlet 61 of the intermediate tank.
  • the intermediate tank comprises an overflow passage 62 from where excess condensate can be 5 drained to a sink, e.g. the washing liquid collector 34, when the intermediate tank 60 is full.
  • a flow guiding element 63 is arranged for directing the excess condensate from the overflow passage 62 to the sink.
  • the washing pump 64 which is fluidly connected to the intermediate tank 60 conveys liquid from the intermediate tank 60 through a conduit 66 to the washing outlet/nozzle 68 from where it is applied to the fluff filter 36 for washing 5 at least a portion of the fluff filter surface.
  • the washing pump 64 is a high flow rate pump.
  • the condensate pump 52 may be a smaller pump, preferably with a maximum pumping rate below 25 1/min. The condensate pump 52 may be adjusted to create only very little operating noise, thus reducing the overall noise level of the laundry treatment apparatus 2.
  • a siphon 66a may be arranged in the conduit 66.
  • Fig. 5 is a schematic view of a further embodiment of a laundry treatment apparatus 2. It differs from the embodiments shown in Figs. 2, 3, and 4 in that the drain pump 72 is arranged close to the fluff filter 36, namely at or close to the front of the apparatus 2, more precisely the front of the base unit 30.
  • the shorter distance between the fluff filter 36 and the drain pump 72 allows a more compact layout of the washing liquid o collector 34 with shorter liquid channels which in turn results in a more efficient draining of the collector 34 with better removal of the contaminated washing liquid L and the fluff contained therein.
  • the overflow 76 which is provided in the 5 housing 75 of the removable tank 12 guides excess liquid that spills out from the
  • tank housing 75 and overflow 76 is also applicable to the other embodiments of a laundry treatment apparatus described herein, and in particular to the embodiments depicted in 0 Figs. 2 and 4.
  • Fig. 6a is a perspective front view of an embodiment of the base unit 30 of a disassembled laundry treatment apparatus 2 showing the condensate collector 32 and the washing liquid collector 34.
  • the condensate collector 32 and the washing liquid collector 34 are separated 5 by means of a separating wall 106. During and after filter washing, the contaminated
  • washing liquid L from the fluff filter 36 reaches a front section 34a of the washing liquid collector 34 from where it is guided by a channeling section 34b to a pump section 34c located at the rear side of the base unit 30.
  • the condensate C produced at the heat exchanger 38 of the assembled apparatus is collected in a condensate collector main section 32a of the condensate collector and flows from there to a condensate collector pump section 32b.
  • a process air fan casing 120 is arranged for attachment of a 5 process air fan (not shown).
  • Fig. 6b is a perspective front view of a collector cover 110. It is adapted to be placed on top of the condensate collector 32 and the washing liquid collector 34 in the base unit 30 shown in Fig. 6a as indicated by the arrow below the figure. It may comprise a condensate o well 112 for guiding condensate C received from the heat exchanger 38 to a condensate passage 114 and therethrough to the condensate collector 32.
  • the condensate well 112 may be limited by a containment wall 117 arranged for avoiding condensate to reach downstream sections of the process air circuit, in particular the condenser 40 for heating the process air A or the process air fan.
  • the positioning of the condensate passage 114 5 and/or the form of the condensate channel 116 may be adjusted so that condensate is
  • the collector cover 110 and/or the condensate well 112 may be sloped so as to guide the condensate C towards the condensate passage 114.
  • the collector cover 110 may further comprise a process air guidance 118 for guiding process air A from the heat exchanger 38 (not shown) to the process air fan (not shown) in o the process air fan casing 120.
  • the base unit 30 is preferably arranged so that
  • the slopes in the condensate collector 32 and/or the washing liquid collector 34 are adjusted so that the liquid in the respective collector flows into the corresponding pump section at a sufficiently high flow rate to make sure that condensate or washing liquid is 5 primarily supplied to the condensate pump 52 and/or the washing liquid pump 72 and at a flow rate such that liquid contaminations such as fluff in the washing liquid are reliably transported together with the liquid.
  • the slopes in the condensate collector 32 and/or the washing liquid collector 34 may be adjusted so that the liquid in the respective collector is directed towards the corresponding pump section even when the laundry treatment apparatus 2 is not installed on a perfectly horizontal surface.
  • Fig. 7 is a perspective rear view of the base unit 30 as shown in Fig.
  • the condensate pump 52 is in liquid connection to the condensate collector 32
  • the drain pump 72 is in liquid connection to the washing liquid collector 34 (see e.g. Figs. 2, 3, 4).
  • Fig. 8a shows a perspective front view and Fig. 8b a perspective rear view of the base unit 30 depicted in Fig. 7 after assembly of the following additional components:
  • cover 122 arranged for covering the heat exchanger 38 and forming the sections of the process air channel between the fluff filter and the process air fan casing 120 (cover 122 covers the so called battery channel of a heat-pump type basement in which the evaporator and condenser are arranged), and
  • conduit 66 arranged for guiding condensate to a washing outlet and/or washing nozzle 68.
  • the conduit 66 is attached to the outlet of the condensate pump 52 and guides condensate from the condensate pump directly to the washing outlet and/or washing nozzle 68 as shown, e.g., in the schematic view of Fig. 2a.
  • the conduit 66 is attached to a condensate directing means 54 (not shown), e.g., according to the schematic view of Fig. 2b.
  • the condensate directing means 54 may be located adjacent to the condensate pump 52 or may be integrated into the housing of the condensate pump 52.
  • Fig. 9 is a perspective rear view of an embodiment of an embodiment of the laundry treatment apparatus 2 in an apparatus cabinet 3.
  • the figure also shows the drain conduit 73, preferably comprising the siphon 73 a, connected to the outlet of the drain pump 72 and adapted for directing washing liquid conveyed by the drain pump to an upper part of the apparatus 2, preferably to the drain outlet 74, preferably located at or in the removable tank 12 or at or in an overflow passage 76 of the removable tank.
  • the drain pump 72 is located at the rear side of the laundry treatment apparatus 2 (cf. the schematic views of Figs. 2, 3, and 4).
  • a process air fan back cover 121 forms the rear part of the process air fan casing 120 and a section of the process air channel guiding process air A from the process air fan to the laundry treatment chamber.
  • FIG. 10 A perspective front view of another embodiment of the base unit 30 of a disassembled laundry treatment apparatus 2 is depicted in Fig. 10.
  • the washing liquid collector preferably comprises the front section 34a and the pump section 34c both located at or close to the front side of the base unit 30.
  • the pump section 34c of the washing liquid collector is in liquid connection to the drain pump 72 also located at or close to the front side of the base unit 30.
  • the contaminated washing liquid L from the fluff filter 36 reaches the front section 34a of the washing liquid collector 34 from where it is directly guided to the pump section 34c.
  • the length and/or the average length and/or the slope and/or the average slope of the path to be covered by the contaminated washing liquid from the front section 34a to the pump section 34c is substantially shorter in this embodiment than in the embodiment according to Fig. 6a.
  • the condensate collector 32 comprises the main section 32a and the pump section 32b may span a larger portion of the base area of the base unit 30 than in the embodiment shown in Fig. 6a, because the channel section 34b of the washing liquid collector 34 for directing washing liquid L to the rear side of the base unit 30 is not needed.
  • the condensate pump 52 is in liquid connection to the pump section 32 of the condensate collector.
  • the process air fan casing 120 is arranged for attachment of the process air fan (not shown).
  • FIG. 11 As compared to Fig. 10, the perspective front view of Fig. 11 additionally shows the components:
  • collector cover 110 similar to the one shown in Fig. 6b arranged for covering the condensate collector 32,
  • the collector cover 110 comprises the condensate well 112 adjusted to guide condensate C received from the heat exchanger 38 to the condensate passage 114 and from there to the condensate collector 32.
  • the collector cover 110 5 also comprises the process air guidance arranged for guiding process air A from the heat exchanger 38 to the process air fan (not shown) arranged in the process air fan casing 120.
  • the condensate pump 52 and/or the drain pump 72 preferably are high flow rate pumps, i.e. arranged for a minimum liquid pumping rate of 20 1/min or above.
  • a o perspective view of an embodiment of an example for a high flow rate pump 200 is shown in Fig. 12a. It comprises a liquid inlet 204, a liquid outlet 218, and a motor unit 220 with a power plug 222.
  • the pump is activated by supplying electrical power to the power plug 222.
  • the motor unit 220 drives an internal pump rotor 206 (see below) which causes liquid to be conveyed from the liquid inlet 204 to the liquid5 outlet 218.
  • Fig. 12b is a sectional view of the embodiment of the high flow rate pump 200 shown in Fig. 12a. Apart from the components described above, it depicts a suction well 202 arranged for providing the liquid to be conveyed by the pump 200 and the internal pump o rotor 206 driven by the motor unit 220.
  • the pump rotor 206 rotates and creates a centrifugal acceleration in the surrounding liquid volume, whereby the liquid is pushed in a direction perpendicular to the rotor axis into the liquid channel 216, resulting in a liquid flow as indicated by the arrow.
  • the outer edges of the blades of the pump rotor 206 do not contact the pump 5 chamber walls 208, but are (at least laterally and at the suction side) separated from the pump chamber walls 208 by a certain distance "b".
  • the bottom edges of the rotor blades are also separated from the pump inlet 204 by a certain distance "a” and are inclined at an angle "a” with respect to the direction of liquid flow.
  • the distances "a" and "b” and the angle "a” are adjusted so that particles contaminating the 0 liquid (e.g. fluff in the contaminated washing liquid) can easily pass the rotor without blocking it and thus are conveyed together with the liquid.
  • the distances "a" and/or "b" are at least 5 mm.
  • the liquid inlet 204 has a circular shape with an opening diameter of at least 15 mm. More preferably, the liquid channel 216 and/or the liquid outlet 218 have a circular cross section with a diameter of at least 15 mm. More 5 preferably, the distance between the liquid inlet 204 and the floor of the suction well 202 is at least 5 mm.
  • the pump rotor 206 may comprise a disk at the shaft to the motor so as to avoid fabric to enter the motor and/or block the shaft.
  • Fig. 12c is a sectional view of another embodiment of a high flow rate pump 200.
  • the outlet direction is not vertical but horizontal, because the liquid channel 216 is not bent upwards.

Abstract

L'invention concerne un appareil de traitement de linge (2) comprenant une unité de commande (16), une enceinte d'appareil (3), un compartiment de traitement de linge (8) servant à traiter le linge au moyen d'air de traitement (A), un circuit d'air de traitement pour la circulation de l'air de traitement (A), un échangeur thermique (38) disposé dans le circuit d'air de traitement pour refroidir l'air de traitement (A) et condenser l'humidité qu'il contient, un collecteur de condensat (32) associé à l'échangeur thermique (38) pour collecter le condensat (C) produit au niveau de l'échangeur thermique (38), un filtre à peluches (36) disposé dans le circuit d'air de traitement en amont de l'échangeur thermique (38) et servant à filtrer les peluches présentes dans l'air de traitement (A) traversant le filtre à peluches (36), un collecteur de liquide de lavage (34) associé au filtre à peluches (36) et conçu pour collecter du liquide de lavage (L) à partir du filtre à peluches (36), un réservoir intermédiaire (60) servant à stocker le condensat (C) pour le lavage du filtre à peluches (36), une pompe à condensat (52) en communication de circulation de liquide avec le collecteur de condensat (32) et conçue pour acheminer le condensat (C) collecté jusqu'au réservoir intermédiaire (60), une pompe de lavage (64) en communication de circulation de liquide avec le réservoir intermédiaire (60) et conçue pour acheminer le condensat (C) stocké du réservoir intermédiaire (60) jusqu'au filtre à peluches (36) afin de laver au moins une partie de sa surface en éliminant les peluches.
PCT/EP2013/078132 2013-12-30 2013-12-30 Appareil de traitement de linge comportant un système de lavage de filtre à peluches WO2015101388A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP13815530.4A EP3090095B1 (fr) 2013-12-30 2013-12-30 Appareil de traitement de linge comportant un système de lavage de filtre à peluches
PL13815530T PL3090095T3 (pl) 2013-12-30 2013-12-30 Urządzenie do obróbki materiałów pranych z układem mycia filtra kłaczków
PCT/EP2013/078132 WO2015101388A1 (fr) 2013-12-30 2013-12-30 Appareil de traitement de linge comportant un système de lavage de filtre à peluches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/078132 WO2015101388A1 (fr) 2013-12-30 2013-12-30 Appareil de traitement de linge comportant un système de lavage de filtre à peluches

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WO2015101388A1 true WO2015101388A1 (fr) 2015-07-09

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EP (1) EP3090095B1 (fr)
PL (1) PL3090095T3 (fr)
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CN106319903A (zh) * 2015-07-02 2017-01-11 Lg电子株式会社 烘干机
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CN106436233A (zh) * 2016-07-08 2017-02-22 无锡小天鹅股份有限公司 热泵干衣机
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EP3450615A1 (fr) * 2017-09-05 2019-03-06 Electrolux Appliances Aktiebolag Séchoir et procédé de production d'un séchoir
CN109863268A (zh) * 2016-11-14 2019-06-07 伊莱克斯家用电器股份公司 衣物处理机
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US10519591B2 (en) 2016-10-14 2019-12-31 Whirlpool Corporation Combination washing/drying laundry appliance having a heat pump system with reversible condensing and evaporating heat exchangers
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CN106319903B (zh) * 2015-07-02 2018-11-09 Lg电子株式会社 烘干机
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CN106468010A (zh) * 2015-08-17 2017-03-01 Lg电子株式会社 衣物烘干机
EP3138952A1 (fr) * 2015-09-04 2017-03-08 Arçelik Anonim Sirketi Séchoir à linge
CN106436233A (zh) * 2016-07-08 2017-02-22 无锡小天鹅股份有限公司 热泵干衣机
CN106049002A (zh) * 2016-07-08 2016-10-26 无锡小天鹅股份有限公司 热泵干衣机
US10087569B2 (en) 2016-08-10 2018-10-02 Whirlpool Corporation Maintenance free dryer having multiple self-cleaning lint filters
US10633785B2 (en) 2016-08-10 2020-04-28 Whirlpool Corporation Maintenance free dryer having multiple self-cleaning lint filters
US10519591B2 (en) 2016-10-14 2019-12-31 Whirlpool Corporation Combination washing/drying laundry appliance having a heat pump system with reversible condensing and evaporating heat exchangers
US11542653B2 (en) 2016-10-14 2023-01-03 Whirlpool Corporation Filterless air-handling system for a heat pump laundry appliance
US10738411B2 (en) 2016-10-14 2020-08-11 Whirlpool Corporation Filterless air-handling system for a heat pump laundry appliance
US11299834B2 (en) 2016-10-14 2022-04-12 Whirlpool Corporation Combination washing/drying laundry appliance having a heat pump system with reversible condensing and evaporating heat exchangers
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US10502478B2 (en) 2016-12-20 2019-12-10 Whirlpool Corporation Heat rejection system for a condenser of a refrigerant loop within an appliance
US10544539B2 (en) 2017-02-27 2020-01-28 Whirlpool Corporation Heat exchanger filter for self lint cleaning system in dryer appliance
US11920288B2 (en) 2017-02-27 2024-03-05 Whirlpool Corporation Heat exchanger filter for self lint cleaning system in dryer appliance
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US11142864B2 (en) 2017-02-27 2021-10-12 Whirlpool Corporation Heat exchanger filter for self lint cleaning system in dryer appliance
US10823479B2 (en) 2017-06-01 2020-11-03 Whirlpool Corporation Multi-evaporator appliance having a multi-directional valve for delivering refrigerant to the evaporators
US10514194B2 (en) 2017-06-01 2019-12-24 Whirlpool Corporation Multi-evaporator appliance having a multi-directional valve for delivering refrigerant to the evaporators
US10718082B2 (en) 2017-08-11 2020-07-21 Whirlpool Corporation Acoustic heat exchanger treatment for a laundry appliance having a heat pump system
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US11739472B2 (en) 2017-09-26 2023-08-29 Whirlpool Corporation Laundry appliance having a maintenance free lint removal system
US11015281B2 (en) 2017-09-26 2021-05-25 Whirlpool Corporation Laundry appliance having a maintenance free lint removal system
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CN113529379A (zh) * 2020-04-21 2021-10-22 无锡飞翎电子有限公司 用于干衣机的底座组件及具有其的干衣机
EP4219822A1 (fr) * 2022-01-26 2023-08-02 BSH Hausgeräte GmbH Séchoir d'un circuit d'air de traitement à haute étanchéité à l'air et procédé de fonctionnement du séchoir
EP4219823A1 (fr) * 2022-01-26 2023-08-02 BSH Hausgeräte GmbH Séchoir présentant une meilleure étanchéité à l'air d'un circuit d'air de traitement et procédé de fonctionnement du séchoir

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