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EP4259980B1 - Système pour chauffer et déshumidifier simultanément une pièce - Google Patents

Système pour chauffer et déshumidifier simultanément une pièce Download PDF

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Publication number
EP4259980B1
EP4259980B1 EP21836039.4A EP21836039A EP4259980B1 EP 4259980 B1 EP4259980 B1 EP 4259980B1 EP 21836039 A EP21836039 A EP 21836039A EP 4259980 B1 EP4259980 B1 EP 4259980B1
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EP
European Patent Office
Prior art keywords
chamber
zone
heating
air
opening
Prior art date
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Application number
EP21836039.4A
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German (de)
English (en)
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EP4259980A1 (fr
Inventor
Giuseppe POLVERELLI
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Individual
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Individual
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Priority claimed from IT102020000030143A external-priority patent/IT202000030143A1/it
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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
    • 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
    • D06F34/26—Condition of the drying air, e.g. air humidity or temperature
    • 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
    • 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
    • D06F59/00—Supports adapted to retain the shape of particular articles being dried, e.g. incorporating heating means
    • D06F59/02—Supports adapted to retain the shape of particular articles being dried, e.g. incorporating heating means for garments
    • 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
    • D06F73/00—Apparatus for smoothing or removing creases from garments or other textile articles by formers, cores, stretchers, or internal frames, with the application of heat or steam 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/81—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/153—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
    • 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
    • D06F2103/28—Air properties
    • D06F2103/32—Temperature
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/26—Heat pumps
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/30—Blowers
    • 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
    • D06F2105/32—Air flow control means
    • 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
    • D06F58/30—Drying processes 

Definitions

  • the present patent application for industrial invention relates to a system for heating and dehumidifying a room.
  • the aim of the present invention is to devise a system that allows for dehumidifying a room without cooling the same room, that is to say, a system that allows for simultaneously heating and dehumidifying a room.
  • the heating of bathrooms is related with the temperature of the bedroom where low temperatures are set. During the night, sometimes the heating is turned off.
  • US2011100043A1 discloses a ventilating air-conditioning system suitable for being installed in a roof space of a bathroom.
  • the ventilating air-conditioning system is preferably designed to operate in combination with a conventional air conditioner.
  • the ventilating air-conditioning system comprises a main body having a first chamber (defined as supply air path) and a second chamber (defined as exhaust air path).
  • the ventilating air-conditioning system comprises a heat pump comprising a first heat exchanger disposed in the first chamber, a second heat exchanger disposed in the second chamber, a compressor, an expansion mechanism and valves that allow for inverting the flow of the heat transfer fluid inside the heat pump in such a way that the first and the second heat exchangers can respectively operate as evaporator and as condenser and vice versa.
  • the first heat exchanger divides the first chamber in a first zone and in a second zone.
  • the second heat exchanger divides the second chamber in a first zone and a second zone.
  • the main body comprises:
  • the two chambers communicate by means of an interconnection opening disposed between the first two zones, wherein a flow adjustment valve is installed to mix the two flows that are conveyed in the two paths.
  • Another opening is provided between the two chambers, which is disposed between the two first zones, wherein a flow path changing valve is installed to change the paths and go from a supply/exhaust state, wherein the two chambers or paths are set at a cooling/heating mode, wherein the inlet is in communication with the outlet, whereas the inlet opening is in communication with the outlet opening. Therefore, in the cooling/heating mode, the outdoor space is completely separated from the indoor space.
  • the system can simultaneously heat and dehumidify a room only when it is in the supply/exhaust mode.
  • the air coming from outside enters the first chamber, passes through the first heat exchanger (acting as a condenser) and then is introduced into the room.
  • the humid air of the room enters the second chamber, passes through the second heat exchanger (acting as an evaporator) and is discharged outside the room.
  • the heat pump is unable to make the first heat exchanger (acting as a condenser) reach a sufficient temperature in order to properly heat the air that touches the first heat exchanger and is introduced into the room.
  • Such an inefficiency makes it impossible to use the system in extremely cold places where the outdoor temperature is very low.
  • the system needs auxiliary heating means that additionally heat the air before it is introduced into the room or that act on the heat transfer fluid, increasing its temperature before going to the condenser.
  • auxiliary heating means makes the system extremely expensive and complex to implement.
  • the system is also afflicted by a problem that is especially encountered when the system operates in the heating mode and it is extremely cold outside.
  • the second heat exchanger acts as an evaporator and is touched by the cold air coming from outside that enters through the inlet. Frost is generated by the cold air on the outer surface of the second evaporator. In order to defrost the second evaporator it is necessary to block the fans and switch the valves of the heat pump so as to invert the flow of the heat transfer fluid inside the heat pump.
  • valve assembly is an essential element of the US2011100043A1 ventilating air-conditioning system.
  • the provision of the valve assembly and the inversion of the flow to defrost the evaporator originate several drawbacks.
  • valve assembly increases the complexity and the cost of the system.
  • CN1 10506972A discloses a tobacco leaf baking device.
  • the system comprises a boxed frame comprising a dehumidification chamber and a heating chamber disposed downstream the dehumidification chamber.
  • the system comprises a heat pump comprising an evaporator disposed in the dehumidification chamber, a condenser disposed in the heating chamber, a compressor, a laminating unit and a valve assembly to invert the flow of the heat transfer fluid inside the heat pump.
  • the boxed frame comprises inlets with valves, channels and electric fans that allow for:
  • the system described in CN110506972A requires the presence of the valve assembly, and therefore has the same problems as the ventilating air conditioning system described in US2011100043A1 arising from the presence of the valve assembly.
  • auxiliary electric heater disposed in the heating chamber, which can be activated when the condenser is unable to properly heat the air passing through it.
  • the present invention has been conceived following to a careful observation of the aforementioned problems, with the aim of disclosing a heating/dehumidification system that can operate simultaneously as a dehumidifier and as a heater.
  • the purpose of the present invention is to devise a heating/dehumidification system which allows for
  • a further purpose of the present invention to devise a heating/dehumidification system wherein, the defrosting of an evaporator of a heat pump of the heating/dehumidification system does not require to invert the flow of the heat transfer fluid inside the heat pump.
  • An additional purpose of the present invention is to devise a heating/dehumidification system that is inexpensive and energy-efficient.
  • Another purpose is to devise a heating/dehumidification system that is particularly suitable for being associated with garments or clothes supporting devices for drying said garments or clothes.
  • the heating/dehumidification system according to the invention is defined by claim 1.
  • RD heating/dehumidification system according to the invention
  • the heating/dehumidification system (RD) is suitable for being installed in a room (LC) of a house or of a building.
  • the heating/dehumidification system comprises a boxed frame (T) comprising a first chamber (F1) and a second chamber (F2).
  • the heating/dehumidification (RD) system comprises a heat pump comprising components suitable for being crossed by a heat transfer fluid and disposed in the boxed frame (T).
  • the components of said heat pump are a condenser (C) arranged in said first chamber (F1), an evaporator (E) arranged in said second chamber (F2), a laminating unit (L) arranged in said second chamber (F2) and a compressor (S) arranged in said first chamber (F1).
  • the condenser (C) divides the first chamber (F1) into a first zone (F11) and a second zone (F12).
  • the evaporator (E) divides the second chamber (F2) into a first zone (F21) and a second zone (F22).
  • the arrows show the direction of the heat transfer fluid inside the components of the heat pump.
  • the heat transfer fluid is compressed by the compressor (S), increasing its temperature and its pressure.
  • the heat transfer fluid is sent to the condenser (C), from which it exits at liquid state, and is then sent to the laminating unit (L) to decrease the temperature and the pressure of the heat transfer fluid at liquid state. Then the heat transfer fluid is conveyed towards the evaporator. The heat transfer fluid passes through the evaporator, absorbs heat and evaporates, returning to gaseous state.
  • the evaporator (E) absorbs the heat from the surrounding space and yields the heat to the heat transfer fluid.
  • the heat transfer fluid that comes out of the evaporator (E) is then recycled towards the compressor (S) to start a new cycle.
  • the boxed frame (T) includes:
  • said boxed frame (T) may comprise an auxiliary inlet (e21) that puts the first zone (F21) of the second chamber (F2) directly in communication with the room (LC).
  • a movable partition (p4, p5, p9, p10) is provided, which is suitable for moving between an opening position, wherein the inlet or the exhaust outlet (s2) is open, and in a closing position, wherein the inlet (e11, e12, e21, e22) or the exhaust outlet (s2) is closed.
  • the heating/dehumidification (RD) system comprises condensation draining/collecting means (G1, G2) suitably configured to drain or collect the condensation that is generated on the evaporator (E).
  • G1, G2 condensation draining/collecting means
  • the condensation draining/collecting means consist of a draining channel (G1) that discharges the condensation outside the room (LC) and/or a removable tank (G2) wherein the condensation precipitates.
  • the heating/dehumidification system further comprises:
  • the boxed frame (T) of the heating/dehumidification system (RD) comprises at least one interconnection opening (n1, n2) that puts the first chamber (F1) and the second chamber (F2) in communication.
  • the boxed frame (T) comprises two interconnection openings (n1, n2), namely a first interconnection opening (n1) and a second interconnection opening (n2).
  • a movable partition (p7, p8) is disposed on each interconnection opening (n1, n2) and is suitable for being moved between an opening position, wherein the interconnection opening (n1, n2) is open, and a closing position, wherein the interconnection opening (n1, n2) is closed.
  • the first interconnection opening (n1) is disposed between the first zone (F11) of the first chamber (F1) and the first zone (F21) of the second chamber (F2).
  • the second interconnection opening (n2) is disposed between the second zone (F12) of the first chamber (F1) and the second zone (F22) of the second chamber (F2).
  • the heating/dehumidification system comprises a control unit (H) configured to activate or deactivate the electric fans (V1, V4).
  • the movable partitions are automatically moved by means of automatic drive means controlled by the control unit (H).
  • RD heating/dehumidification system
  • Fig. 2 the operating mode of the heating/dehumidification (RD) system is shown.
  • the partition (p5) associated with the first inlet (e11) is kept open, similarly the partition (p9) associated with the second inlet (e12) is kept open, whereas the partition (p8) associated with the second interconnection opening (n2) is kept closed.
  • the first electric fan (V1) is activated in such a way as to suck in the air from the first inlet (e11) and forcedly convey it towards the second inlet (e12). Therefore, the air enters the first zone (F11) of the first chamber (F1), passes through the condenser (C), goes into the second zone (F12) of the first chamber (F1) and is reintroduced into the room (LC) through the second inlet (e12).
  • the air meets the condenser (C) and heats up. More precisely, the air touches the external surface of the conduit of the condenser (C) and absorbs heat. Therefore the air that comes out of the second inlet (e12) is heated.
  • both the partition (p10) associated with the third inlet (e22) and the partition (p4) associated with the exhaust outlet (s2) are kept open.
  • the second electric fan (V4) is activated in such a way as to suck in the air from the third inlet (e22) and forcedly convey it into the exhaust tube (TS) in order to discharge this air outside the room (LC). Therefore, the air enters the second zone (F22) of the second chamber (F2), passes through the evaporator (E), goes into the first zone (F21) of the second chamber (F2) and is discharged through the exhaust outlet (s2).
  • the air meets the evaporator (E), is cooled down and releases water vapor. Therefore, once it has passed through the evaporator (E), the air is dehumidified and cooled.
  • the heating/dehumidification system can also be equipped with a temperature sensor (z1) installed in the first chamber (F1) to detect the temperature of the air coming out of the second inlet (e12), and with an additional external temperature sensor (z3) installed in the room (LC) to detect the temperature in the room (LC).
  • a temperature sensor z1 installed in the first chamber (F1) to detect the temperature of the air coming out of the second inlet (e12)
  • z3 installed in the room (LC) to detect the temperature in the room (LC).
  • the two temperature sensors (z1, z3) are operatively connected to the control unit (H) to send temperature signals.
  • the temperature can be adjusted by opening or closing the partition (p7) associated with the first interconnection opening (n1).
  • the cold dehumidified air present in the first zone (F21) of the second chamber (F2) flows into the first zone (F11) of the first chamber (F1), mixing with the air that is already present in the first zone (F11) of the first chamber (F1), cooling it down and therefore regulating the temperature of the air that comes out of the second inlet (e12) and is reintroduced into the room (LC).
  • control unit (H) automatically sets the heating/dehumidification system (RD) to defrost mode by means of a sensor installed on the evaporator, as shown in Fig. 3 .
  • the air is sucked in from the room (LC) through the first inlet (e11) of the boxed frame (T) and enters the first zone (F11) of the first chamber (F1); then the air passes through the condenser (C) where it is heated, and flows into the second zone (F12) of the first chamber (F1); then the air passes through the second interconnection opening (n2) in such a way to pass into the second zone (F22) of the second chamber (F2); successively, it passes through the evaporator (E) in order to defrost it and is finally discharged into the exhaust tube (TS), passing through the second exhaust outlet (s2).
  • the heat transfer fluid can always circulate in the same direction.
  • the heating/dehumidification system can be used not only to heat and dehumidify a room, but also in association with a clothes supporting device (100, 200) in order to dry clothes, thus defining a clothes drying system.
  • Figs. 4 to 8A show a first clothes supporting device defined herein as a clothes drying rack (100).
  • Figs. 9 to 18 show a second clothes supporting device defined hereafter as drying/ironing device (200).
  • the clothes drying rack (100) shown in Figs. 4-8 is suitable for being disposed in the same room (LC) where said heating/dehumidification system (RD) is installed.
  • the clothes drying rack (100) comprises a supporting frame (1) comprising two crosspieces (11) parallel to each other and a plurality of strings (2) parallel to each other and connected to said crosspieces (11).
  • the clothes to be dried are suitable for being hung on the strings (2).
  • the clothes drying rack (100) is suitable for being installed on a masonry wall of the room (LC) and, therefore, the supporting frame (1) comprises two uprights (10) which are suitable for being fixed to said masonry wall of the room (LC) and support the crosspieces (11) in projecting position.
  • the peculiarity of the clothes drying rack (100) is that it comprises two electric fans (3), each one of them being arranged under one of the two crosspieces (11), which forcedly convey the air under the plurality of strings (2).
  • each electric fan (3) forcedly conveys the air towards the other electric fan (3).
  • Both electric fans (3) are suitable for being activated/deactivated by said control unit (H) of the heating/dehumidification system (RD).
  • the two electric fans (3) have misaligned axes of rotation.
  • the two electric fans (3) that forcedly convey the air under the strings (2) of the clothes drying rack allow for considerably speeding up the drying of the clothes.
  • the clothes drying rack (100) comprises translation means interposed between each crosspiece (11) and its corresponding upright (10) and configured in such a way that the crosspieces (11) can slide up-and-down along the uprights (10) between a raised position (shown in Fig. 5 ) and a lowered position (shown in Fig. 6 ).
  • said translation is performed by means of automatic drive means (such as, for example, linear motors) which allow said crosspieces (11) to translate along the uprights (10).
  • automatic drive means such as, for example, linear motors
  • Each crosspiece (11) and each upright (10) comprise hinge means to let the crosspiece (11) rotate about an axis (X) so as to be disposed in an operating position, wherein said crosspieces (11) are substantially orthogonal to said uprights (10), and in an idle position, wherein said crosspieces (11) are substantially parallel to said uprights (10).
  • said hinge means comprise:
  • Said clothes drying rack (100) further comprises a support (30) for each electric fan (3) which is rotatably connected by means of hinge means to the crosspiece (11), in such a way that each electric fan (3) can be disposed between:
  • the clothes drying rack (100) is of foldable type.
  • the crosspieces (11) are rotated around the axis (X) in such a way as to be disposed in idle position, as shown in Fig. 8 .
  • the clothes drying rack (100) can be covered with an ornamental curtain (TO) that is artistically decorated according to the interior decoration of the room (LC), as shown in Fig. 8A .
  • an ornamental curtain TO that is artistically decorated according to the interior decoration of the room (LC), as shown in Fig. 8A .
  • the integrative element is a connecting tube (TC) that fluidly connects the first chamber (F1) with an inner chamber (50) of a boxed structure (5) of the drying-ironing device (200).
  • connection tube TC
  • RD integrated heating/dehumidification system
  • connection tube (TC) is connected directly to the second inlet (e12) of the boxed frame (T).
  • the rotation of the first electric fan (V1) causes the air to enter the first chamber (F1), passing through the first inlet (e11), and then exit from the first chamber (F1), passing through the second inlet (e12), in such a way to flow into the connection tube (TC) and travel towards the drying-ironing device (200).
  • connection tube (TC) is connected to a delivery inlet (s1) provided in correspondence of the first zone (F11) of the first chamber (F1).
  • a third electric fan (V3) is provided in correspondence of the delivery inlet (s1) and is configured in such a way as to generate an airflow that sucks in the air from the first chamber (F1) and forcedly conveys the air towards the connection tube (TC).
  • a mobile partition (p3) is provided in the delivery inlet (s1) and is suitable for being moved between a closing position and an opening position.
  • the use of the heating/dehumidification system associated with the drying-ironing device (200) provides for:
  • the air enters through the second inlet (e12), then passes through the condenser (C) and finally flows into the connection tube (TC) so as to travel towards the drying-ironing device (200).
  • the air enters through the third inlet (e22), then passes through the evaporator (E) and finally flows into the exhaust tube (TS) to be discharged outside the room (LC).
  • the same result can be obtained without necessarily using the third fan (V3), but simply providing that the first fan (V1) is a bi-directional fan capable of inverting its rotation and generating an airflow that is conveyed towards the connection tube (TC).
  • drying-ironing device (200) is illustrated.
  • the drying-ironing device (200) comprises a supporting frame, preferably comprising two uprights (80) suitable for being fixed to a masonry wall of the room (LC).
  • the drying-ironing device (200) comprises a boxed structure (5) supported by the supporting frame.
  • said boxed structure (5) is supported in projecting position by the two lateral uprights (80).
  • the boxed structure (5) comprises an inner chamber (50), at least one inlet opening (511, 512) for the introduction of air into the inner chamber (50), and one or more lower outlet openings (52) for the ejection of air from the inner chamber (50), the latter being downwardly facing.
  • said boxed structure (5) comprises an upper inlet opening (511) and one or more lateral inlet openings (512).
  • the upper inlet opening (511) is connected to the connection tube (TC) which puts the inner chamber (50) of the boxed structure (5) in fluid communication with the first chamber (F1) of the boxed frame (T) of the heating/dehumidification system (RD).
  • Partitions (5f) are provided on each lateral inlet opening (512) of the boxed structure that are automatically opened in case of a depression inside the inner chamber (50).
  • the lateral inlet openings (512) of the boxed structure (5) are suitable for being crossed by the air coming from the room (LC) towards the inner chamber (50).
  • the drying-ironing device (200) further includes one or more electric fans (VL) disposed in the inner chamber (50) and suitable for forcedly conveying the air from the inner chamber (50) towards the lower outlet openings (52).
  • VL electric fans
  • the drying-ironing device (200) also includes garment supporting means (MI), which are arranged under said boxed structure (5) and where garments (W) are suitable for being hung.
  • MI garment supporting means
  • the garment supporting means comprise a conveyor (60a, 60b, 60c, 60d) for each lower outlet opening (52).
  • the drying-ironing device (200) comprises two conveyors (60a, 60b), whereas in the embodiment shown in Figs. 13 and 13A , the drying-ironing device (200) comprises four conveyors (60a, 60b, 60c, 60d).
  • a first type of conveyor (60a) (shown in Fig. 14 ) has been devised by the applicant to support a pair of trousers.
  • a second type of conveyor (60b) (shown in Fig. 15 ) has been devised to support a shirt.
  • a third type of conveyor (60c) (shown in Fig. 16 ) have been devised to support sweaters or the like.
  • a fourth type of conveyor (60d) (shown in Fig. 17 ) has been devised to support delicate garments.
  • Each conveyor (60a, 60b, 60c, 60d) comprises a tube (61) having a vertical central axis (Y).
  • Each conveyor (60a, 60b, 60c, 60d) comprises an inlet opening (61a) in communication with the lower outlet opening (52) of the boxed structure (5), and an outlet opening (61b).
  • the first type and the second type of conveyor (60a, 60b) comprise fixing means (62) that are disposed around the tube (61) and are configured in such a way to fix an entry section of the garment (W).
  • the term "entry section" indicates the upper opening of a pair of trousers that is suitable for embracing a user's waist, or the opening of a collar of a shirt or of a sweater suitable for embracing a user's neck.
  • the fixing means (62) comprise an adjustable collar (621) disposed around the tube (61).
  • the adjustable collar (621) is configured in such a way to increase and decrease its width so as to be adjusted and fixed to the entry section of the garment (W).
  • the conveyor (60a, 60b) may comprise an adjustment lever (622) connected by means of suitable means to the adjustable collar (621) in such a way that a movement of the adjustment lever (622) corresponds to a reduction or to an expansion of the adjustable collar (621).
  • holes (f6) in communication with the inside of the tube (61) are provided on the adjustable collar (621) and are suitable for ejecting the air.
  • the first type of conveyor (60a) comprises a single tube (61) which has a substantially elliptical cross-section and which is suitable for being embraced by the waistband of a pair of trousers or the like.
  • the conveyor (60b) of the second type comprises two auxiliary tubes (63) that protrude externally from the tube (61) in a symmetrical manner with respect to a plane passing through the central axis (Y) of the tube (61).
  • Each auxiliary tube (63) comprises an end outlet (63) for the ejection of the air.
  • the two auxiliary tubes (63) substantially define two lateral shoulders where the shoulders of the shirt or of the garment hanging from the conveyor (60a, 60b) are rested.
  • the third type of conveyor (60c) which is suitable for simultaneously drying and ironing sweaters of the like, is similar to the one for shirts ( Fig. 15 ) but is not provided with said fixing means.
  • the central tube (61) of the third type of conveyor (60c) comprises two tubes that can be attached to each other, namely an upper coupling tube (611a) attached to the boxed structure (5) and a lower support tube (611b) from which the two auxiliary tubes (63) branch off.
  • the lower support tube (611b) can be connected to the upper coupling tube (611a) by means of a bayonet coupling (or similar) and fixed in position by means of a lever or alternative means.
  • a lever or alternative means When the lower support tube (611b) is detached from the upper coupling tube (611a), it is possible to insert a sweater or a similar item to be dried-ironed.
  • holes (k) are provided on the lower support tube (611b) and on the auxiliary tubes (63) holes (k) for the ejection of the air.
  • the central tube (61) comprises an upper coupling tube (612a) and a lower tube (612b) that can be coupled to each other.
  • the lower tube (612b) end in a diffuser plate (67) which lies on a plane orthogonal to the central axis (Y) and comprises lower exit holes (ff) for the ejection of the air.
  • the conveyor (60d) further comprises a lower supporting plate (68) which is disposed in parallel position under the diffuser plate (67) and is connected to the diffuser plate (67) by means of connecting rods (6ac).
  • a delicate garment to be dried-iron is suitable for being rested on the lower support plate (68).
  • holes (68f) are provided on the lower support plate (68) holes (68f) for the passage of the air.
  • each conveyor (60a, 60b, 60c, 60d) is removably connected to the boxed structure (5).
  • the boxed structure (5) comprises coupling means (55) arranged around the lower outlet opening (52), whereas the conveyor (60a, 60b, 60c, 60d) comprises coupling means (65), which are arranged around the inlet opening (61a) and are suitably configured to be coupled with the coupling means (55) of the boxed structure (5).
  • the conveyors (60a, 60b, 60c, 60d) may be interchangeable with each other.
  • said coupling means (55, 65) of the boxed structure (5) and of the conveyor (60) are of bayonet type.
  • said coupling means (55, 65) of bayonet type comprise:
  • the slots comprise an enlarged portion having suitable dimensions to allow the free penetration of the enlarged head of the peg and a narrow longitudinal portion where the enlarged head of a peg is fitted.
  • the conveyor may be coupled with the boxed structure (5) by means of other types of bayonet couplings or by means of other types of coupling systems such as, for example, coupling systems with levers, clips, magnetic means and the like.
  • the drying-ironing device (200) comprises translation means interposed between the boxed structure (5) and the two lateral uprights (80).
  • the translation means are configured in such a way that the boxed structure (5) can slide up and down along the lateral uprights (80) between a raised position and a lowered position.
  • said translation is performed by means of automatic drive means (such as, for example, linear motors) which allow said boxed structure (5) to translate along the lateral uprights (80).
  • automatic drive means such as, for example, linear motors
  • connection tube (TC) comprises at least one end section (TC1) suitable for having a variable length depending on the position of the boxed structure (5) along the lateral uprights (80).
  • said end section (TC1) consists in a bellows tube.
  • the drying-ironing device (200) is associated with clamps (PZ), each of them being suitable for being applied to an exit section of the garment (W) in such a way as to clamp and close the exit section of the garment (W).
  • PZ clamps
  • exit section indicates, for instance, the opening of a sleeve of a shirt or the lower opening of the shirt suitable for embracing a user's waist or the lower openings of a pair of trousers suitable for embracing a user's ankles.
  • each clamp comprises two levers hinged to each other, each one of them comprising two operating surfaces (PZ1) that cooperate with each other so as to clamp the portion of garment (W) interposed between them.
  • the operating surfaces (PZ1) have a length greater than 8 cm.
  • the garment supporting means (MI) of the drying-ironing device (200) further comprise a clothes drying rack (9) to be used particularly when the conveyors (60) are uncoupled from the boxed structure (5).
  • the clothes drying rack (9) comprises two crosspieces (91) parallel to each other and a plurality of strings (92) parallel to each other, which are connected to the two crosspieces (91) and where garments or clothes are suitable for being hung.
  • the crosspieces (91) are supported in projecting position by said two lateral uprights (80). Translation means are provided between the crosspieces (91) and the lateral uprights (80) in such a way that the crosspieces (91) can slide up and down along the lateral uprights (80) between a lowered position (not shown in the appended figures), wherein the clothes drying rack (9) is in distal position relative to the boxed structure (5), and a raised position (shown in Fig. 11A ), wherein the clothes drying rack (9) is in proximal position relative to the boxed structure (5).
  • said translation is preferably performed by means of automatic drive means (such as, for example, linear motors) that allow said crosspieces (91) to be translated along the uprights (80).
  • automatic drive means such as, for example, linear motors
  • Each crosspiece (91) and each upright (80) further comprise hinge means that allow the crosspiece (91) to rotate about a horizontal axis (X) so as to assume an operating position, wherein said crosspieces (91) are substantially orthogonal to said uprights (80), and an idle position, wherein said crosspieces (91) are substantially parallel to said uprights (80).
  • said hinge means comprise:
  • the clothes drying rack (9) of the garment supporting means (MI) of the drying-ironing device (200) can be moved in the same way as the clothes drying rack (100) shown in Figs. 4 , 5 , 6 and 7 .
  • the heating/dehumidification system (RD) when used in the operating mode ( Fig. 9 or Fig. 10 ), the hot air (coming from the first chamber (F1) of the heating/dehumidification system) that flows towards the inner chamber (50) of the drying/ironing device is directed downwards by the electric fans (VL).
  • the garment (W) gets dried and ironed, eliminating any possible wrinkles.
  • the clothes drying rack (9) When the conveyors (60a, 60b, 60c, 60d) are not attached, then the clothes drying rack (9) will be arranged as in Fig. 11A and the hot air will pass through the garments from the top to them bottom, drying and ironing them..
  • the heating/dehumidification system (RD) when the heating/dehumidification system (RD) is associated with a clothes supporting device (100, 200), the heating/dehumidification system (RD) may further comprise a humidity sensor (u) (shown schematically in Fig. 6 , 9 and 10 ) suitable for being installed in the vicinity of the clothes supporting device (100, 200) and configured to detect a humidity concentration in the vicinity of the clothes supporting device (100, 200).
  • the control unit (H) is operatively connected (via wireless or via cable) to the humidity sensor (u) to receive a humidity concentration information.
  • the control unit (H) comprises a comparator to compare the humidity concentration detected by the humidity sensor (u) with a threshold value stored in the comparator.
  • the control unit (H) deactivates the electric fans (V1, V3 V4, 3; VL) and stops the system because the low humidity concentration (u) indicates that the clothes are dried.
  • the heating/dehumidification system can advantageously comprise a timer (TR) (see Fig. 19 ) that can be set by a user, which is operatively connected to the control unit (H). Said timer (TR) is configured to send a signal to the control unit (H) to deactivate the electric fans (V1, V4) and stop the system after the time set by the user has elapsed.
  • the timer (TR) can be programmed for multiple activations and deactivations per day and for different cycles during the seven days of the week.
  • the provision of the boxed frame (T) with two separate chambers (F1, F2) - the condenser being disposed in one chamber (F1) and the evaporator (E) being disposed in the other chamber (F2) - allows for simultaneously heating and dehumidifying the room, thus making the environment comfortable for the people living in such a space.
  • first interconnection opening (n1) located between the two first zones (F11, F21) of the two chambers (F1, F2), which can be opened and closed by means of a partition (p7), makes it possible to regulate the temperature of the air that comes out of the boxed frame (T).
  • the presence of the second interconnection opening (n2), located between the two second zones (F12, F22) of the two chambers (F1, F2), allows the evaporator to be defrosted without the need to invert the flow of the heat transfer fluid inside the heat pump.
  • defrosting is not determined by the passage of the hot heat transfer fluid in the evaporator (E) but by the air that enters the inlet (e11), passes through the condenser (C), heating up, passes through the second interconnection opening (n2) and finally reaches the evaporator to defrost it.
  • the heating/dehumidification system does not use air coming from outside the room (LC) to carry out its functions, but only air coming from inside the room (LC). Therefore, it does not need any preheating system or similar systems to operate. So, the system according to the invention is suitable for being used even in places where for long periods of the year the temperature is below 0 °C.
  • the heating/dehumidification system has a power consumption of about 400 Watts and is therefore much more economical than the conventional heating systems of the prior art, which have a consumption comprised between 1300 Watts and 2000 Watts.
  • boxed frame (T) has an extremely small footprint so that it can be installed even in small bathrooms and small rooms.
  • heating/dehumidification system is versatile and can be used in combination with clothes supporting devices (100, 200) for the rapid drying of clothes and garments.
  • the use of the heating/dehumidification system (RD) in combination with the clothes supporting device (100, 200) allows for:

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Claims (13)

  1. Système de chauffage/déshumidification (RD), pour un local (LC), comprenant :
    - un châssis caissonné (T) comprenant une première chambre (F1) et une seconde chambre (F2) ;
    - une pompe à chaleur comprenant un condensateur (C) disposé dans ladite première chambre (F1), un évaporateur (E) disposé dans ladite seconde chambre (F2), une unité de laminage (L) et un compresseur (S) ; ledit condensateur (C) divise la première chambre (F1) en une première zone (F11) et en une seconde zone (F12) ; ledit évaporateur (E) divise la seconde chambre (F2) en une première zone (F21) et en une seconde zone (F22) ;
    - un premier ventilateur électrique (V1) disposé dans ladite première chambre (F1) et configuré de façon à générer un flux d'air à l'intérieur de la première chambre (F1) qui traverse le condensateur (C) en allant de la première zone (F11) vers la seconde zone (F12) de ladite première chambre (F1) ;
    - un second ventilateur électrique (V4) disposé dans ladite seconde chambre (F2) et configuré de façon à générer un flux d'air à l'intérieur de la seconde chambre (F2) qui traverse l'évaporateur (E) en allant de la seconde zone (F22) vers la première zone (F21) de la seconde chambre (F2) ;
    - une unité de commande (H) configurée de façon à activer ou désactiver les ventilateurs électriques (V1, V4) ;
    où ledit châssis caissonné (T) comprend : une première ouverture (e11) qui rend communicante la première zone (F11) de la première chambre (F1) avec le local (LC) ; une seconde ouverture (e12) qui rend communicante la seconde zone (F12) de la première chambre (F1) avec le local (LC) ; une troisième ouverture (e22) qui rend communicante la seconde zone (F22) de la seconde chambre (F2) avec le local (LC) ; une sortie d'évacuation (s2) disposée dans ladite première zone (F21) de la seconde chambre (F2) à laquelle est connecté un tuyau d'échappement (TS) apte à décharger l'air qui traverse la sortie d'évacuation (s2) à l'extérieur du local (LC) ; au moins une ouverture d'interconnexion (n1, n2) qui rend communicantes la première chambre (F1) avec la seconde chambre (F2) ; dans ladite ouverture d'interconnexion (n1, n2) il y a une cloison mobile (p7, p8) configurée de manière à fermer ou à ouvrir l'ouverture d'interconnexion (n1, n2) ;
    caractérisé en ce que ledit châssis caissonné (T) comprend deux ouvertures d'interconnexion (n1, n2), dont une première ouverture d'interconnexion (n1) disposée entre la première zone (F11) de la première chambre (F1) et la première zone (F21) de la seconde chambre (F2), et une seconde ouverture d'interconnexion (n2) disposée entre la seconde zone (F12) de la première chambre (F1) et la seconde zone (F22) de la seconde chambre (F2).
  2. Système de chauffage/déshumidification (RD) selon la revendication 1, où ledit système de chauffage/déshumidification (RD) comprend pour chaque ouverture (e11, e12, e22) ou sortie (s2) une cloison mobile (p4, p5, p9, p10) configurée de manière à ouvrir ou à fermer l'ouverture (e11, e12, e22) ou la sortie d'évacuation (s2).
  3. Système de chauffage/déshumidification (RD) selon la revendication 1 ou 2, comprenant des moyens de déplacement automatiques des susdites cloisons mobiles (p4, p5, p7, p8, p9, p10) ; ladite unité de commande (H) étant connectée opérationnellement aux susdits moyens de déplacement pour les activer aux fins de déplacer chaque cloison mobile (p4, p5, p7, p8, p9, p10).
  4. Système de chauffage/déshumidification (RD) selon l'une quelconque des revendications précédentes, comprenant des moyens d'évacuation/dépôt de la condensation (G1, G2) configurés de manière à évacuer ou collecter une condensation générée par l'évaporateur (E).
  5. Système de chauffage/déshumidification (RD) selon l'une quelconque des revendications précédentes, comprenant un capteur de température (z1) qui est disposé dans ladite première chambre (F1) et qui mesure la température de l'air qui circule dans ladite première chambre (F1) ;
    ladite unité de commande (H) étant connectée opérationnellement au susdit capteur de température (z1) pour recevoir des signaux de température.
  6. Système de chauffage/déshumidification (RD) selon la revendication 5, comprenant un ultérieur capteur de température externe (z3) destiné à être positionné dans le local (LC) et apte à relever la température du local (LC) ; ladite unité de commande (H) étant connectée opérationnellement au susdit ultérieur capteur de température externe (z3) pour recevoir des signaux de température.
  7. Système de chauffage/déshumidification (RD) selon la revendication 5 ou 6, où ladite unité de commande (H) est configurée de manière à déplacer la cloison (p7) associée à l'au moins une ouverture d'interconnexion (n1), entre la position de fermeture et la position d'ouverture en fonction des signaux de température reçus depuis le capteur de température (z1) ou depuis les capteurs de température (z1, z3) de manière à gérer un flux d'air froid et déshumidifié qui va de la seconde chambre (F2) à la première chambre (F1).
  8. Groupe de séchage de linge comprenant un système de chauffage/déshumidification (RD) selon l'une quelconque des revendications de 1 à 7 et un dispositif de support du linge (100, 200).
  9. Groupe de séchage de linge selon la revendication 8, où ledit dispositif de support du linge est un étendoir à linge (100) comprenant :
    a) un châssis de support (1) comprenant au moins deux traverses (11) parallèles entre elles ;
    b) une pluralité de fils (2) parallèles entre eux et reliés aux susdites traverses (11) ; le linge à sécher étant destiné à être accroché à ladite pluralité de fils (2).
  10. Groupe de séchage de linge selon la revendication 9, où ledit étendoir à linge (100) comprend au moins un ventilateur électrique (3) qui convoie de manière forcée de l'air au-dessous de ladite pluralité de fils (2).
  11. Groupe de séchage de linge selon la revendication 8, où ledit dispositif de support du linge (100, 200) est un dispositif de séchage-repassage pour vêtements (200) comprenant :
    - un châssis de support ;
    - une structure caissonnée (5) soutenue par le châssis de support et comprenant une chambre interne (50), au moins une ouverture d'entrée (511, 512) pour l'entrée d'air dans la chambre interne (50) et au moins une ouverture de sortie inférieure (52) pour la sortie de l'air de la chambre interne (50) ; ladite ouverture inférieure (52) étant orientée vers le bas ;
    - des moyens de support des vêtements (Ml) qui sont disposés au-dessous de ladite structure caissonnée (5) et sur lesquels sont destinés à être accrochés les vêtements (W) ; et
    - au moins un ventilateur électrique (VL) configuré de façon à convoyer de l'air à l'intérieur de la chambre interne (50) vers l'ouverture de sortie inférieure (52) ;
    où ledit système de chauffage/déshumidification (RD) comprend un tuyau de connexion (TC) qui met en communication de fluide la première chambre (F1) avec la chambre interne (50) de la structure caissonnée (5) du dispositif de séchage-repassage (200).
  12. Groupe de séchage de linge selon la revendication 11, où lesdits moyens de support des vêtements (MI) comprennent au moins un convoyeur (60a, 60b, 60c, 60d) comprenant un tuyau (61) ayant un axe central (Y) ; ledit convoyeur (60a, 60b, 60c, 60d) comprenant une embouchure d'entrée (61a), qui communique avec l'ouverture de sortie inférieure (52) de la structure caissonnée (5), et une embouchure de sortie (61b).
  13. Méthode pour le dégivrage d'un évaporateur d'un système de chauffage/déshumidification selon l'une quelconque des revendications de 2 à 7 ; ladite méthode prévoyant de :
    - fermer les cloisons (p9, p10 et p7) associées à la seconde ouverture (e12), à la troisième ouverture (e22) et à la première ouverture d'interconnexion (n1) ;
    - ouvrir les cloisons (p5, p4 et p8) associées à la première ouverture (e11), à la sortie d'évacuation (s2) et à la seconde ouverture d'interconnexion (n2) ;
    - activer le second ventilateur électrique (V4) de façon à ce que l'air passe d'abord par le condensateur (C), puis par l'évaporateur (E) et pour finir qu'il soit évacué à l'extérieur du local (LC) via la sortie d'évacuation (s2).
EP21836039.4A 2020-12-09 2021-12-06 Système pour chauffer et déshumidifier simultanément une pièce Active EP4259980B1 (fr)

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IT202000030167 2020-12-09
IT202000030161 2020-12-09
IT102020000030143A IT202000030143A1 (it) 2020-12-09 2020-12-09 Impianto di riscaldamento e deumidificazione simultanea di un locale.
PCT/EP2021/084443 WO2022122671A1 (fr) 2020-12-09 2021-12-06 Système de chauffage et de déshumidification simultanés d'une pièce

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EP3009753B1 (fr) * 2014-10-16 2020-06-03 LG Electronics Inc. Déshumidificateur

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JP2001116290A (ja) * 1999-10-14 2001-04-27 Toto Ltd 暖房乾燥機
JP2004116899A (ja) * 2002-09-26 2004-04-15 Matsushita Electric Ind Co Ltd ヒートポンプ式乾燥機
KR20150145995A (ko) * 2014-06-20 2015-12-31 대덕대학산학협력단 에어 스피드 건조대
CN109764438B (zh) * 2018-12-29 2020-08-11 东南大学 整体式新风除湿干衣机

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Publication number Priority date Publication date Assignee Title
US20110100043A1 (en) * 2007-08-31 2011-05-05 Panasonic Corporation Air conditioning/ventilating system
EP3009753B1 (fr) * 2014-10-16 2020-06-03 LG Electronics Inc. Déshumidificateur
CN110506972A (zh) * 2019-09-23 2019-11-29 湖南科技大学 基于气流循环控制的密集烤房加热除湿装置

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