EP2468948B1 - Vorrichtung zur Entfeuchtung und Erwärmung sowie Wäschetrockner damit - Google Patents

Vorrichtung zur Entfeuchtung und Erwärmung sowie Wäschetrockner damit Download PDF

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Publication number
EP2468948B1
EP2468948B1 EP11192324.9A EP11192324A EP2468948B1 EP 2468948 B1 EP2468948 B1 EP 2468948B1 EP 11192324 A EP11192324 A EP 11192324A EP 2468948 B1 EP2468948 B1 EP 2468948B1
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EP
European Patent Office
Prior art keywords
heat
dehumidifying
air
heating apparatus
condenser
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Not-in-force
Application number
EP11192324.9A
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English (en)
French (fr)
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EP2468948A3 (de
EP2468948A2 (de
Inventor
Mitsunori Taniguchi
Mitsuyuki Furubayashi
Kuniyuki Nakanishi
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Panasonic Corp
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Panasonic Corp
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Priority claimed from JP2010283985A external-priority patent/JP5625883B2/ja
Priority claimed from JP2010283982A external-priority patent/JP5617602B2/ja
Application filed by Panasonic Corp filed Critical Panasonic Corp
Publication of EP2468948A2 publication Critical patent/EP2468948A2/de
Publication of EP2468948A3 publication Critical patent/EP2468948A3/de
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Publication of EP2468948B1 publication Critical patent/EP2468948B1/de
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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

Definitions

  • the present invention relates to a dehumidifying and heating apparatus using a heat pump device and a clothes drying machine having the apparatus.
  • Patent Literature 1 A conventional clothes drying machine having a dehumidifying and heating apparatus is disclosed, e.g., in Unexamined Japanese Patent Publication No. 2004-239549 (hereinafter referred to as "Patent Literature 1").
  • Fig. 7 is a schematic diagram of the conventional clothes drying machine having the dehumidifying and heating apparatus.
  • the conventional clothes drying machine having the dehumidifying and heating apparatus includes drying chamber 59 accommodating laundry such as clothes, and dehumidifying and heating apparatus 50.
  • Dehumidifying and heating apparatus 50 includes heat pump device 57, air passage 58, and detection portion 62, and blows air into drying chamber 59 via air passage 58 coupled to drying chamber 59.
  • Heat pump device 57 includes compressor 51, condenser 52, heat exhauster 53 provided in air passage 60, expansion portion 54, and evaporator 55, and is coupled to conduit line 56 so as to circulate a refrigerant.
  • Air passage 58 flowing the air is provided with condenser 52 heating the air, and evaporator 55 cooling and dehumidifying the air.
  • Heat exhauster 53 provided in air passage 60 is provided between condenser 52 and expansion portion 54, and exchanges heat of outside air blown by means of blower 61 and heat of the refrigerant flowing through heat exhauster 53. With this, part of the heat of the refrigerant is discharged to an outside of heat pump device 57, thereby reducing temperature increase of the refrigerant.
  • Detection portion 62 detects a refrigerant discharge temperature by means of thermistor 63 provided on conduit line 56 of heat pump device 57, which is discharged by the refrigerant from compressor 51, and controls compressor 51 and blower 61 based on a detection result.
  • arrow A of Fig. 7 indicates a flow direction of the air flowing in air passage 58
  • arrow B indicates a flow direction of the outside air for cooling flowing in air passage 60
  • arrow C indicates a flow direction of the refrigerant flowing in conduit line 56.
  • compressor 51 and blower 64 provided in air passage 58 are operated. Then, the air is circulatably blown into air passage 58 by means of blower 64.
  • the air is heated by heat release from condenser 52, and becomes hot air so as to be introduced into drying chamber 59. Then, the air introduced into drying chamber 59 is brought into contact with clothes in drying chamber 59, and takes moisture from the wet clothes to dry the clothes.
  • the air provides an amount of heat for evaporating moisture contained in the clothes as sensible so as to become cooler.
  • the air contains water vapor having latent heat substantially equivalent to this sensible heat so as to have high-humidity air.
  • an enthalpy of the air before and after the air is brought into contact with the clothes is substantially constant.
  • the high-humidity air is cooled in evaporator 55 for the latent heat to be taken, and is condensed to be dehumidified. Thereafter, the air which is dehumidified and becomes cooler is heated in condenser 52 again.
  • the high-temperature and high-pressure refrigerant compressed in compressor 51 has its heat taken by the air in condenser 52, and is condensed and liquefied.
  • the refrigerant which exits from condenser 52 enters heat exhauster 53, and is exchanged heat with the outside air blown by means of blower 61, thereby exhausting part of the heat of the refrigerant.
  • the high-pressure refrigerant is reduced pressure by means of expansion portion 54 so as to have a low temperature and a low pressure, and takes heat from the air in evaporator 55 to return to compressor 51.
  • heat exhauster 53 is additionally provided in air passage 60 for exhausting heat, and previously exhausts an amount of heat corresponding to an input of compressor 51 to the outside, thereby balancing the amount of heat release from condenser 52 and the amount of heat taken in evaporator 55 at a fixed value. Therefore, the conventional clothes drying machine additionally requires piping which couples condenser 52 to heat exhauster 53, and piping which couples heat exhauster 53 to expansion portion 54. As a result, heat pump device 57 is made larger, so that dehumidifying and heating apparatus 50 is also made larger.
  • EP 2 034 084 A1 relates to a clothes dryer with additional heat exchanger.
  • the clothes dryer is provided with a heat pump circuit in order to cool and to heat process air.
  • the heat pump circuit there is arranged an additional heat exchanger between a condenser and a throttle body. At this place, the temperature is relatively high, which improves the efficiency of the additional heat exchanger.
  • the temperature gradient between an evaporator and the condenser is increased. Therefore, it is possible to extract more water from the process air.
  • a dehumidifying and heating apparatus of the present invention includes a heat pump device having a compressor, a condenser having a heat radiator and a heat exhauster, an expansion portion, and an evaporator, a first air passage which is provided therein with a first blowing portion which blows air into the heat radiator and the evaporator, the heat radiator and the evaporator and heats and dehumidifies the air blown by the first blowing portion, and a second air passage which is provided therein with a second blowing portion which blows air into the heat exhauster, and the heat exhauster, sucks outside air by means of the second blowing portion, and exhausts part of heat in the condenser to the outside with the heat exhauster, wherein the heat radiator and the heat exhauster of the condenser are integrally provided.
  • part of the condenser is used as the heat exhauster, so that the dehumidifying and heating apparatus can be made smaller.
  • Fig. 1 is a schematic diagram of a clothes drying machine having a dehumidifying and heating apparatus according to a first exemplary embodiment of the present invention.
  • Fig. 2 is a partial schematic diagram of the dehumidifying and heating apparatus. It should be noted that in the following drawings, arrow A indicates a flow direction of air flowing in first air passage 9, arrow B indicates a flow direction of outside air for cooling flowing in second air passage 11, and arrow C indicates a flow direction of a refrigerant flowing in conduit line 6.
  • the clothes drying machine includes drying chamber 14 accommodating laundry such as clothes, and dehumidifying and heating apparatus 16 coupled to drying chamber 14 via first air passage 9.
  • dehumidifying and heating apparatus 16 includes heat pump device 1, first air passage 9, and second air passage 11.
  • Heat pump device 1 includes compressor 2, condenser 3, expansion portion 4, evaporator 5, and conduit line 6.
  • Conduit line 6 in which the refrigerant circulates is coupled to compressor 2, condenser 3, expansion portion 4, and evaporator 5 of heat pump device 1.
  • Compressor 2 compresses the refrigerant.
  • Condenser 3 have heat radiator 7 and heat exhauster 8, heat radiator 7 and heat exhauster 8 being adjacently integrally provided.
  • Heat radiator 7 heat the passing air by exchanging heat with the compressed refrigerant having a high temperature and a high pressure.
  • Heat exhauster 8 exhausts part of the heat of the refrigerant of condenser 3.
  • Expansion portion 4 includes, e.g., a capillary tube, and reduces a pressure of the high-pressure refrigerant.
  • Evaporator 5 takes heat from the passing air by exchanging heat with the refrigerant which is reduced pressure so as to have a low pressure. Thereby, the passing air is dehumidified.
  • First air passage 9 is provided therein with evaporator 5, heat radiator 7 of condenser 3, and first blowing portion 10.
  • the air blown by first blowing portion 10 in the direction indicated by arrow A is dehumidified when passing through evaporator 5, and thereafter, is heated when passing through heat radiator 7.
  • second air passage 11 formed adjacent to first air passage 9 is provided therein with heat exhauster 8 of condenser 3 and second blowing portion 12.
  • the outside air sucked by second blowing portion 12 in the direction indicated by arrow B exhausts part of heat in condenser 3 to the outside with heat exhauster 8.
  • dehumidifying and heating apparatus 16 of this embodiment with one part of condenser 3 as heat radiator 7 and with the other part as heat exhauster 8, heat radiator 7 and heat exhauster 8 are integrated to configure condenser 3.
  • any separated heat exhausters as in the conventional art are not required to be provided, and any piping for heat exhauster connection is not required.
  • dehumidifying and heating apparatus 16 can be made smaller.
  • partitioning plate 13 may be provided between heat radiator 7 and heat exhauster 8 to separate adjacent first air passage 9 and second air passage 11. At this time, partitioning plate 13 may part of first air passage 9 or second air passage 11. Thereby, mixing of the air flowing in first air passage 9 with the outside air for cooling flowing in second air passage 11 can be prevented, and partitioning plate 13 serves as a wall surface of first air passage 9 or second air passage 11 to enable condenser 3 to be made smaller.
  • air passage area X of heat radiator 7 is made larger than air passage area Y of heat exhauster 8. This is because an amount of heat heating air, that is, an amount of heat provided to the air in heat radiator 7 is larger than an amount of heat corresponding to an input of compressor 2, that is, an amount of heat exhausted from heat exhauster 8.
  • the air passage area shows an area of an inflow surface of the air which passes through each of heat radiator 7 and heat exhauster 8 by operating first blowing portion 10 and second blowing portion 12.
  • Fig. 3 is a perspective view of the condenser of the dehumidifying and heating apparatus according to the first exemplary embodiment of the present invention.
  • condenser 3 includes, e.g., a typical fin tube type heat exchanger having a plurality of fins 3a provided in heat radiator 7, a plurality of fins 3b provided in heat exhauster 8, and heat exchanger tube 3c including refrigerant inflow port 3d.
  • Fins 3a are arranged in parallel with each other at fixed intervals with respect to the inflow surface into which the air flows, indicated by arrow B of Fig. 3 . Then, the air passes through fins 3a in a mutual manner to perform exchange heat.
  • fins 3b are arranged in parallel with each other at fixed intervals with respect to the inflow surface into which the air flows, indicated by arrow B of Fig. 3 so that they are on the same plane as fins 3a. Then, the air passes through fins 3b in a mutual manner to perform exchange heat.
  • Fins 3a and fins 3b are formed, e.g., of a thin plate made of aluminum and on the same plane with respect to the inflow surfaces of the air.
  • the inflow surface of the air of heat radiator 7 provided in first air passage 9 and the inflow surface of the air of heat exhauster 8 provided in second air passage 11 are on the same plane. Therefore, an air flow direction of heat exhauster 8 is allowed to be the same as an air flow direction of heat radiator 7, so that the same high-efficiency exchange heat as heat radiator 7 can be obtained and heat exhauster 8 can be made smaller.
  • heat exchanger tube 3c which is conduit line 6 in which the refrigerant flows is formed, e.g., of a copper tube and in a serpentine shape, and passes through fins 3a and fins 3b in a direction orthogonal to fins 3a and fins 3b (a tube axis direction of heat exchanger tube 3c).
  • heat exhauster 8 and heat radiator 7 of condenser 3 are integrally provided so as to be in parallel with each other in a direction vertical to the tube axis direction of heat exchanger tube 3c (a direction in parallel with the inflow surfaces into which the air flows).
  • heat exhauster 8 is provided so as to be located in a position in which refrigerant inflow port 3d of condenser 3 is included.
  • the high-temperature and high-pressure refrigerant compressed in compressor 2 flows from refrigerant inflow port 3d of condenser 3 into heat exhauster 8 in a gas state. Therefore, a temperature of the refrigerant is the highest in refrigerant inflow port 3d of condenser 3.
  • the refrigerant which flows into heat exhauster 8 is exchanged heat with the outside air which is sucked by blowing portion 12 in heat exhauster 8, so as to become cooler, and become a gas-liquid two-phase saturation state. Thereafter, the refrigerant flows into heat radiator 7, and is exchanged heat so as to become cooler, in a supercooled state in which the refrigerant is completely liquefied, and flows out from condenser 3.
  • conventional dehumidifying and heating apparatus 50 is provided with heat exhauster 53 after the refrigerant exits from condenser 52, and exhausts heat of the refrigerant in a liquefied state. Therefore, when a temperature of the outside air is high, a temperature difference between the air and the refrigerant is small and an effect of exhausting heat is small. Therefore, dehumidifying and heating apparatus 50 made larger heat exhauster 53 to increase an effect of exhausting heat.
  • heat exhauster 8 of dehumidifying and heating apparatus 16 of this embodiment is provided in the position of including refrigerant inflow port 3d of condenser 3.
  • refrigerant inflow port 3d flows the hot refrigerant in a gas state.
  • condenser 3 having heat radiator 7 and heat exhauster 8 can be made smaller.
  • dehumidifying and heating apparatus 16 can be made smaller.
  • the high-pressure refrigerant which flows out from condenser 3 is reduced pressure by expansion portion 4 so as to have a low temperature and a low pressure, and flows from the air in evaporator 5. Thereafter, the refrigerant obtains an amount of heat from the air by heat exchanging in evaporator 5, and returns to compressor 2 again. At this time, an amount of heat obtained by evaporator 5 and an amount of heat obtained by compression of compressor 2 is released from condenser 3.
  • conduit line 6 includes flattened tube 15.
  • Fig. 4 is a perspective view of the condenser showing another example of the dehumidifying and heating apparatus according to the first exemplary embodiment of the present invention.
  • Fig. 5 is a partial schematic diagram showing another example of the dehumidifying and heating apparatus.
  • heat exchanger tube 3c of condenser 3 which is conduit line 6 in which the refrigerant flows is formed in a serpentine shape with flattened tube 15 bent.
  • first air passage 9 and second air passage 11 can be partitioned by flattened tube 15, so that partitioning plate 13 is not required to be provided between heat radiator 7 and heat exhauster 8.
  • compressor 2 and first blowing portion 10 are operated. Then, the air passes through heat radiator 7 by means of first blowing portion 10, and the air which passes through heat radiator 7 is heated by heat exchange in heat radiator 7 so as to become hot air, and is delivered into drying chamber 14. The air which is brought into contact with clothes in drying chamber 14 takes moisture from the clothes to dry the clothes.
  • the air which dries the clothes provides an amount of heat for taking moisture from the wet clothes as sensible heat so as to become cooler.
  • the air contains water vapor having latent heat substantially equivalent to the sensible heat so as to have high humidity.
  • An enthalpy of the drying air before and after the air is brought into contact with the clothes is substantially constant.
  • the high-humidity air is cooled in evaporator 5 for the latent heat to be taken, and is condensed to be dehumidified.
  • the air dehumidified so as to have lowered absolute humidity is heated in heat radiator 7 again, and is repeatedly dehumidified and heated while circulating in first air passage 9.
  • second blowing portion 12 is operated. Then, the outside air is sucked by second blowing portion 12, and exhausts part of the heat in condenser 3 to the outside by heat exhauster 8.
  • second blowing portion 12 is stopped or its amount of blowing is reduced. Thereby the amount of exhausting heat in heat exhauster 8 can be reduced to increase the amount of heat in heat radiator 7.
  • dehumidifying and heating apparatus 16 can perform sufficient exhausting heat from refrigerant inflow port 3d having a high refrigerant temperature.
  • the clothes drying machine includes the dehumidifying and heating apparatus of the present invention, so that the clothes drying machine can be made smaller.
  • Fig. 6 is a perspective view of the condenser of the dehumidifying and heating apparatus according to a second exemplary embodiment of the present invention.
  • This embodiment is different from the first exemplary embodiment in that heat exhauster 8 and heat radiator 7 of condenser 3 are provided in parallel with each other in the tube axis direction of heat exchanger tube 3c.
  • other configuration is the same as the first exemplary embodiment, the same configurations are indicated by the same reference numerals, and detailed description thereof cites the first exemplary embodiment.
  • heat exhauster 8 and heat radiator 7 of condenser 3 are adjacently integrally provided so as to be in parallel with each other in the tube axis direction of heat exchanger tube 3c. At this time, heat exhauster 8 is provided so as to be located in the position in which refrigerant inflow port 3d of condenser 3 is included.
  • Fins 3e of heat radiator 7 and fins 3f of heat exhauster 8 are arranged in parallel with each other at fixed intervals with respect to the inflow surfaces into which the air flows, indicated by arrow B of Fig. 6 . Then, the air passes between fins 3e and fins 3f in a mutual manner to perform exchange heat. Fins 3e and fins 3f are formed, e.g., of a thin plate made of aluminum and on the same plane with respect to the inflow surfaces of the air. In first embodiment, fins 3e and fins 3f become separated in Figs, but in this embodiment, fins 3e and fins 3f are integrally provided each other.
  • the inflow surface of the air of heat radiator 7 provided in first air passage 9 and the inflow surface of the air of heat exhauster 8 provided in second air passage 11 are formed on the same plane.
  • the air flow direction of heat exhauster 8 is allowed to be the same as the air flow direction of heat radiator 7, so that the same high-efficiency exchanging heat as heat radiator 7 is enabled and heat exhauster 8 can be made smaller.
  • the partitioning plate is not provided between heat radiator 7 and heat exhauster 8, but the present invention is not limited to this.
  • the partitioning plate in parallel with fins 3a and fins 3b may be provided between heat radiator 7 and heat exhauster 8. Thereby, mixing of the air flowing in first air passage 9 with the outside air for cooling flowing in second air passage 11 can be prevented, and partitioning plate 13 serves as the wall surface to enable condenser 3 to be made smaller.
  • heat exhauster 8 and heat radiator 7 of condenser 3 are provided in parallel with each other in the tube axis direction of heat exchanger tube 3c, being adjacently integrally provided, as shown in Fig 4 , even when heat exchanger tube 3c includes flattened tube 15, can be operated similarly.

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

Claims (8)

  1. Entfeuchtungs- bzw. Trocknungs- und Heizapparat, aufweisend:
    eine Wärmepumpenvorrichtung (1), die einen Kompressor (2), einen Kondensator (3), der eine Wärmestrahleinrichtung (7) und einen Wärmeexhaustor (8) hat, einen Expansionsabschnitt (4) und einen Evaporator (5); wobei der Entfeuchtungs- bzw. Trocknungs- und Heizapparat ferner aufweist:
    eine erste Luftpassage bzw. Luftdurchgang (9), welche bzw. welcher darin mit einem ersten Blasabschnitt (10) zur Verfügung gestellt wird, welcher Luft in die Wärmestrahleinrichtung (7) und den Evaporator (5) bläst, wobei die Wärmestrahleinrichtung (7) konfiguriert ist, um zu erwärmen bzw. zu beheizen und wobei der Evaporator (5) konfiguriert ist, um die Luft zu entfeuchten bzw. zu trocknen, die durch den ersten Blasabschnitt (10) geblasen wird; und
    eine zweite Luftpassage bzw. Luftdurchgang (11), welche bzw. welcher darin mit einem zweiten Blasabschnitt (12), welcher Luft in den Wärmeexhaustor (8) bläst, und dem Wärmeexhaustor (8) zu Verfügung gestellt wird, wobei die zweite Luftpassage bzw. Luftdurchgang (11) Außenluft mittels von dem zweiten Blasabschnitt (12) ansagt und einen Teil von der Wärme aus dem Kondensator (3) zu der Außenseite mit dem Wärmeexhaustor (8) evakuiert bzw. ausbringt und dadurch gekennzeichnet, dass die Wärmestrahleinrichtung (7) und der Wärmeexhaustor (8) von dem Kondensator (3) integral bzw. einstückig zur Verfügung gestellt werden.
  2. Entfeuchtungs- bzw. Trocknungs- und Heizapparat gemäß Anspruch 1, wobei ein Luftpassagenbereich bzw. Luftdurchgangsbereich (X) von der Wärmestrahleinrichtung (7) größer als ein Luftpassagenbereich bzw. Luftdurchgangsbereich (Y) von dem Wärmeexhaustor (8) gebildet ist.
  3. Entfeuchtungs- bzw. Trocknungs- und Heizapparat gemäß Anspruch 1, wobei der Wärmeexhaustor (8) auf einer Seite zur Verfügung gestellt wird, wo das Kühlmittel von dem Kondensator (3) strömt.
  4. Entfeuchtungs- bzw. Trocknungs- und Heizapparat gemäß Anspruch 1, wobei der Kondensator (3) ein Wärmetauscherrohr (3c), das in einer Serpentinenform gebildet ist und in welchem das Kühlmittel strömt und mehrere Rippen bzw. Lamellen (3a,3b) enthält, welche orthogonal auf dem Wärmetauscherrohr (3c) installiert sind, wobei die Rippen bzw. Lamellen (3a, 3b) auf derselben Ebene in Bezug auf eine Einströmoberfläche von der Luft gebildet sind.
  5. Entfeuchtungs- bzw. Trocknungs- und Heizapparat gemäß Anspruch 4, wobei die Wärmestrahleinrichtung (7) und der Wärmeexhaustor (8) von dem Kondensator (3) parallel miteinander zur Verfügung gestellt werden, und zwar in einer Richtung vertikal zu einer Rohrachsenrichtung von dem Wärmetauscherrohr (3c).
  6. Entfeuchtungs- bzw. Trocknungs- und Heizapparat gemäß Anspruch 5, wobei das Wärmetauscherrohr (3c) ein abgeflachtes Rohr (15) enthält.
  7. Entfeuchtungs- bzw. Trocknungs- und Heizapparat gemäß Anspruch 4, wobei die Wärmestrahleinrichtung (7) und der Wärmeexhaustor (8) von dem Kondensator (3) parallel miteinander in einer Rohrachsenrichtung von dem Wärmetauscherrohr (3c) zur Verfügung gestellt werden.
  8. Wäschetrocknungsmaschine bzw. Wäschetrockner, aufweisend:
    den Entfeuchtungs- bzw. Trocknungs- und Heizapparat (16) gemäß irgendeinem der Ansprüche 1 bis 7, und
    eine Entfeuchtungs- bzw. Trocknungskammer (14), die Wäsche unterbringt, wobei
    die erste Luftpassage bzw. Luftdurchgang (9) von dem Entfeuchtungs- bzw. Trocknungs- und Heizapparat (16) mit der Entfeuchtungs- bzw. Trocknungskammer (14) gekoppelt ist.
EP11192324.9A 2010-12-21 2011-12-07 Vorrichtung zur Entfeuchtung und Erwärmung sowie Wäschetrockner damit Not-in-force EP2468948B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010283985A JP5625883B2 (ja) 2010-12-21 2010-12-21 除湿加温装置および同装置を備えた衣類乾燥機
JP2010283982A JP5617602B2 (ja) 2010-12-21 2010-12-21 除湿加温装置および同装置を備えた衣類乾燥機

Publications (3)

Publication Number Publication Date
EP2468948A2 EP2468948A2 (de) 2012-06-27
EP2468948A3 EP2468948A3 (de) 2012-09-26
EP2468948B1 true EP2468948B1 (de) 2013-11-27

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CN (1) CN102605596B (de)

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CN106400423B (zh) * 2015-07-31 2019-10-22 浙江三花智能控制股份有限公司 烘干系统及干燥装置
CN107034645B (zh) * 2015-07-31 2019-09-27 浙江三花智能控制股份有限公司 烘干系统及干燥装置
CN106440721A (zh) * 2016-12-14 2017-02-22 郑州游爱网络技术有限公司 一种工业原料除湿干燥装置
CN208671210U (zh) * 2018-08-06 2019-03-29 广东美的制冷设备有限公司 除湿机

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CN107356016B (zh) * 2017-06-12 2020-06-26 同济大学 一种蒸发器与环路热管可切换的换热单元

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Publication number Publication date
EP2468948A3 (de) 2012-09-26
EP2468948A2 (de) 2012-06-27
CN102605596B (zh) 2015-06-24
CN102605596A (zh) 2012-07-25

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