EP3896210A1 - Wäschebehandlungsgerät mit wärmepumpensystem - Google Patents

Wäschebehandlungsgerät mit wärmepumpensystem Download PDF

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Publication number
EP3896210A1
EP3896210A1 EP20169726.5A EP20169726A EP3896210A1 EP 3896210 A1 EP3896210 A1 EP 3896210A1 EP 20169726 A EP20169726 A EP 20169726A EP 3896210 A1 EP3896210 A1 EP 3896210A1
Authority
EP
European Patent Office
Prior art keywords
comprised
adjoining
holes
distance
laundry treating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20169726.5A
Other languages
English (en)
French (fr)
Inventor
Francesco Cavarretta
Fabio GAMBARRO
Gianni GOBBO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrolux Appliances AB
Original Assignee
Electrolux Appliances AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electrolux Appliances AB filed Critical Electrolux Appliances AB
Priority to EP20169726.5A priority Critical patent/EP3896210A1/de
Priority to AU2021202150A priority patent/AU2021202150A1/en
Priority to CN202110406759.XA priority patent/CN113584825A/zh
Publication of EP3896210A1 publication Critical patent/EP3896210A1/de
Pending legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/206—Heat pump arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating 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
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements

Definitions

  • the present invention refers to a laundry treating appliance, for example a laundry washing machine (called also washing machine), a laundry washer-drier (called also washer-drier), a tumble drier, having a heat pump system.
  • a laundry washing machine for example a laundry washing machine (called also washing machine), a laundry washer-drier (called also washer-drier), a tumble drier, having a heat pump system.
  • Traditional laundry treating appliances typically comprise a cabinet containing a rotatable drum wherein the laundry to be treated (i.e. washed and/or dried) can be loaded.
  • An operating fluid e.g., depending on the kind of laundry treating appliance and on the treating process to be applied, water, water mixed with a washing/rinsing additive, air
  • a circulating system comprising, for example pumps, valves, fans, etc., depending on the kind of fluid to be circulated.
  • the operating fluid is heated and/or cooled/dehumidified by a heat pump system, typically comprising a compressor, an expansion valve, two heat exchangers (one operating as a condenser, and the other as an evaporator), and conduits fluidly connecting such elements in a closed circuit.
  • a heat pump system typically comprising a compressor, an expansion valve, two heat exchangers (one operating as a condenser, and the other as an evaporator), and conduits fluidly connecting such elements in a closed circuit.
  • a heat pump system has an improved energy efficiency with respect to traditional heating systems using an electrical heater as heat source.
  • Some refrigerant flows through the compressor, the condenser, the expansion valve and the evaporator, and through the conduits connecting these to one another.
  • the refrigerant releases heat to the operating fluid by means of the condenser, and extracts heat and humidity from the operating fluid by means of the evaporator.
  • the compressor converts electromechanical power to thermal power by compressing the refrigerant in the refrigerant circuit.
  • a known kind of heat exchangers widely used in heat pump systems of laundry treating appliances, comprises a plurality of fins, typically made of aluminum and having a rectangular plane, stacked in spaced and parallel planes; the fins comprise a plurality of through-holes wherein a plurality straight pipes, made of copper or aluminum, parallel one another and perpendicular to the fins, are fitted, with their lateral surface into close contact with the border of the through-holes, so as to obtain an effective heat-exchange.
  • the straight pipes are connected in twos, at one end, by a curved pipe, to define as a whole a single duct wherein the refrigerant flows; this single duct has an inlet portion and an outlet portion protruding from the stack of fins, and connectable to the rest of the heat pump system circuit.
  • the operating fluid flows through the gaps between the fins, exchanging heat with the latter, and therefore with the refrigerant flowing in the pipes, which are thermally connected to the fins.
  • the refrigerants mainly used in heat pump systems of known laundry treating appliances are hydrofluorocarbon (HFC) refrigerants, in particular the ones known as R134a and R407C.
  • HFC hydrofluorocarbon
  • R134a and R407C the ones known as R134a and R407C.
  • these refrigerants have a high Global Warming Potential (GWP), so alternative refrigerants start to be more and more used in different industries.
  • hydrocarbons refrigerants such as propane (R290) and propylene (R1270).
  • the evaporator works at low pressure, and the refrigerant contained therein is mainly a liquid-vapour mixture and a superheated vapour, so its density is quite low. It has been observed that limiting to 150 g the refrigerant charge could negatively affect the performances of the heat pump system, in particular its energy efficiency.
  • the aim of the present invention is therefore obtaining a laundry treating appliance using a heat pump system having a reduced Global Warming Potential (GWP) and an improved efficiency.
  • GWP Global Warming Potential
  • a further object of the invention is obtaining a laundry treating appliance fulfilling the safety regulations related to the refrigerants of the heat pump systems, without reducing the overall energy efficiency.
  • Applicant has found that, by selecting, for specific ranges of external diameters of the metallic pipes of a finned heat exchanger which stacked fins have a plurality of through-holes distributed to define a plurality of mutually parallel rows of aligned through-holes which centers are aligned to each other along a respective straight line, specific ranges for the distances of the straight lines of adjoining rows, and corresponding specific ranges for the distances between the centers of couples of adjoining through-holes of a same row, it is possible to reduce the overall internal volume of the single duct of the heat exchanger wherein the refrigerant flows without reducing the length of the single pipes composing such a single duct nor the number of fins, and therefore without reducing the overall thermal exchange surface.
  • This inventive solution allows using in the heat pump system of a laundry appliance a flammable refrigerant, like for example propane (R290) or propylene (R1270), which have a very low Global Warming Potential (GWP), but that needs to be used in small quantities, and therefore requires a reduced volume of the single duct of the heat exchanger wherein the refrigerant flows.
  • a flammable refrigerant like for example propane (R290) or propylene (R1270), which have a very low Global Warming Potential (GWP), but that needs to be used in small quantities, and therefore requires a reduced volume of the single duct of the heat exchanger wherein the refrigerant flows.
  • GWP Global Warming Potential
  • a laundry treating appliance comprising:
  • inventive ranges allow allows obtaining a uniform heat distribution along the fins, which avoids overheating of some parts of the latter, and also improves the heat exchange.
  • the external diameter of the metallic pipes is comprised between 3 and 6.5 mm, then the distance between the centers of two adjoining through-holes of a same row is comprised between 14 and 22 mm, and the distance between the straight lines of two adjoining rows is comprised between 20 and 35 mm.
  • the external diameter of the metallic pipes is comprised between 3 and 6.5 mm, then the distance between the centers of two adjoining through-holes of a same row is comprised between 22 and 35 mm, and the distance between the straight lines of two adjoining rows is comprised between 15 and 18 mm.
  • the external diameter of the metallic pipes is comprised between 6.5 and 8 mm, then the distance between the centers of two adjoining through-holes of a same row is comprised between 16 and 26 mm, and the distance between the straight lines of two adjoining rows is comprised between 26 and 40 mm.
  • the external diameter of the metallic pipes is comprised between 6.5 and 8 mm, then the distance between the centers of two adjoining through-holes of a same row is comprised between 30 and 40 mm, and the distance between the straight lines of two adjoining rows is comprised between 18 and 24 mm.
  • the distance between the straight lines of two adjoining rows is the same for all the couples of adjoining rows.
  • the distance between the centers of two adjoining through-holes of a same row is the same for all the couples of adjoining through-holes of a same row.
  • the distance between the centers of two adjoining through-holes of a same row is the same for all the rows.
  • the metallic pipes comprise two or more straight pipes, parallel one another and perpendicular to the fins, each one of the two or more straight pipes being housed in one of the plurality of through-holes of each stacked fin), the two or more straight pipes being connected in twos, at one end, by a curved pipe, to define as a whole a single duct wherein the flammable refrigerant flows.
  • the single duct comprises an inlet portion and an outlet portion protruding both from a same terminal fin of the plurality of stacked fins.
  • the flammable refrigerant is or comprises a hydrocarbon, or is or comprises propane (R290) or propylene (R1270) .
  • the plurality of fins and/or the metallic pipes are made of, or comprise, aluminum or aluminum alloy, or copper, or copper alloy.
  • the perimeter edges of the stacked fins define as a whole an envelope surface comprising at least a plane portion, and wherein the plurality of mutually parallel rows are perpendicular to the at least a plane portion.
  • fins of the plurality of metallic fins have a width comprised between 65 mm and 145 mm, and a height comprised between 110 mm and 185 mm.
  • fins of the plurality of metallic fins have a width comprised between 95 mm and 125 mm, and a height comprised between 145 mm and 165 mm.
  • the overall length of the stacked fins is comprised between 330 mm and 370 mm.
  • the overall length of the stacked fins is comprised between 200 mm and 250 mm.
  • the laundry treating appliance is a tumble drier or a washer-drier
  • the operating fluid is air or
  • the laundry treating appliance is a laundry washing machine
  • the operating fluid is water, or water mixed with a washing/rinsing agent.
  • the laundry treating appliance 10 illustrated in figure 1 is a tumble drier of the "horizontal axis type"; it is however clear that the invention can be applied, without any substantial modification, also to tumble driers of the vertical axis" type, and to washing machines and washer driers, both of the "horizontal axis” and of the “vertical axis” type.
  • the laundry treating appliance (being it a tumble drier 10, or a washing machine or washer-drier, not illustrated) comprises a cabinet 20, or housing, preferably parallelepiped, configured to be positioned on a horizontal surface 2, for example the floor of a building, preferably by suitable feet 21, one or more of which can have, advantageously, an adjustable height, so as to adapt to a possible not perfect planarity of the horizontal surface 2.
  • an access opening is preferably obtained, advantageously selectively closable by a loading/unloading door 4, preferably hinged to the frontal wall 20a.
  • the laundry treating appliance (being it a tumble drier 10, or a washing machine or washer-drier) comprises a drum 30 rotatably housed within the cabinet 20, in which the laundry, not illustrated, can be loaded.
  • the cabinet 20 also houses a washing tub, not illustrated, preferably suspended to the cabinet through springs and dumpers, also not illustrated, in which the drum 30 is rotatably contained.
  • the laundry treating appliance 10 comprises a circulating system 60 configured for circulating an operating fluid through the drum 3.
  • the circulating system 60 can define a closed circuit for the operating fluid (i.e. the operating fluid remains within the closed circuit during the laundry treating process, and the same fluid, opportunely treated, passed repeatedly through the drum 30), or it can define an opened circuit for the operating fluid (i.e. the operating fluid is loaded within the laundry treating appliance 10 at a certain point of the laundry treating process, and it is drained from the laundry treating appliance 10 at another point of the laundry treating process).
  • the operating fluid is or comprises air (represented by arrows 50), and the circulating system preferably comprises an air circuit 61 and one or more fans 62 configured for circulating such air 50 through the drum 3 and the air circuit 61.
  • the laundry treating appliance is a tumble drier 10
  • it can also advantageously comprise a lint filter 63, arranged in the air circuit 61 for trapping lint or fluff released from the laundry.
  • the operating fluid is or comprises water, or water mixed with a washing/rinsing additive
  • the circulating system preferably comprises a water inlet circuit, not illustrated, adapted to feed water into the tub, also not illustrated, and a drain circuit, also not illustrated, adapted for draining washing/rinsing liquid from the machine.
  • the laundry treating appliance 10 advantageously comprises a heat pump system 40, configured for heating the operating fluid, for example, in case of a tumble drier, the air 50.
  • the heat pump system 40 can also be configured for cooling and dehumidifying the operating fluid.
  • the heat pump system 40 comprises a compressor, not illustrated, an expansion valve, also not illustrated, two heat exchangers 70a, 70b (one operating as a condenser, and the other as an evaporator), and conduits, not illustrated, fluidly connecting such elements in a closed circuit.
  • a flammable refrigerant flows through the compressor, the condenser 70a, the expansion valve and the evaporator 70b, and through the conduits connecting these to one another.
  • the flammable refrigerant releases heat to the operating fluid by means of the condenser 70a and extracts heat and humidity from the operating fluid by means of the evaporator 70b.
  • the compressor converts electromechanical power to thermal power by compressing the flammable refrigerant in the refrigerant circuit.
  • the flammable refrigerant is or comprises a hydrocarbon, preferably propane (R290) or propylene (R1270).
  • the heat exchangers for example the condenser 70a and/or the evaporator 70b, comprise a plurality of metallic pipes 80 (called also simply pipes) wherein the flammable refrigerant flows, and a plurality of fins 90 (advantageously metallic), stacked spaced and parallel to one another, each provided with a plurality of through-holes 100) wherein one of the metallic pipes 80 is fitted.
  • the through-holes 100 of any fin 90 are respectively aligned with the through-holes 100 of the rest of the stacked fins 90.
  • the perimeter edges 99 of the stacked fins 90 define as a whole an envelope surface, illustrated in figures 4 and 5 with a dotted line numbered 92, comprising at least a plane portion 93.
  • the fins 90 have a rectangular or square plan, in which case the envelope surface 92 comprises four plane portions, corresponding to the four sides of the rectangle or square.
  • the width "w" of the fins 90 is comprised between 65 mm and 145 mm, more preferably between 95 mm and 125 mm.
  • the height "h" of the fins 90 is comprised between 110 mm and 185 mm, more preferably between 145 mm and 165 mm.
  • the overall length of the stacked fins 90 is comprised between 330 mm and 370 mm, more preferably between 200 mm and 250 mm.
  • the fins 90 are made of, or comprise, aluminum or aluminum alloy, or copper, or copper alloy.
  • the metallic pipes 80 are made of, or comprise, aluminum or aluminum alloy, or copper or copper alloy.
  • the metallic pipes 80 comprise two or more straight pipes 81, parallel one another and perpendicular to the fins 90, each straight pipe 81 being housed in one of the through-holes 100 of each stacked fin 90.
  • the straight pipes 81 are fitted, with their lateral surface into close contact with the border of the respective through-holes 100, so as to obtain an effective heat-exchange between them; this can be obtained by radially expanding such straight pipes 81 by suitable tools, not illustrated.
  • the two or more straight pipes 81 are connected in twos, at one end thereof, by a curved pipe 82, to define as a whole a single duct 83 wherein the flammable refrigerant flows.
  • Such a single duct 83 advantageously comprises an inlet portion 831 and an outlet portion 832, configured for allowing the flammable refrigerant respectively to enter/exit the single duct; advantageously, the inlet portion 831 and the outlet portion 832 are fluidly connected or connectable to the other elements of the heat pump system 40, so as to allow circulation of the flammable refrigerant through the respective heat exchanger 70a or 70b.
  • the inlet portion 831 and an outlet portion 832 protrude both from a same terminal fin 91 of the plurality of stacked fins 90, which simplifies the connection of the single duct 83 to the other conduits of the heat pump system 40.
  • the through-holes 100 are distributed on the respective fins 90 to define a plurality of mutually parallel rows 150 of aligned through-holes 100, wherein the centers Ce of the through-holes 100 of each row 150 are aligned to each other along a straight line 110.
  • the external diameter de of the metallic pipes 80 is comprised between 3 and 6.5 mm, then:
  • the external diameter de of the metallic pipes 80 is comprised between 6.5 and 8 mm, then:
  • the distance Tp between the centers Ce of two adjoining through-holes 100 of a same row 150 is comprised between 22 and 35 mm, and the distance Rp between the straight lines 110 of two adjoining rows 150 is comprised between 15 and 18 mm.
  • the distance Tp between the centers Ce of two adjoining through-holes 100 of a same row 150 is comprised between 16 and 26 mm, and the distance Rp between the straight lines 110 of two adjoining rows 150 is comprised between 26 and 40 mm.
  • the distance Tp between the centers Ce of two adjoining through-holes 100 of a same row 150 is comprised between 30 and 40 mm, and the distance Rp between the straight lines 110 of two adjoining rows 150 is comprised between 18 and 24 mm.
  • the distance Rp between the straight lines 110 of two adjoining rows 150 is the same for all the couples of adjoining rows 150.
  • the distance Tp between the centers Ce of two adjoining through-holes 100 of a same row 150 is the same for all the couples of adjoining through-holes 100 of a same row 150; more preferably, the distance Tp between the centers Ce of two adjoining through-holes 100 of a same row 150 is the same for all the rows 150.
  • the fins 90 have a rectangular or square plan
  • the envelope surface 92 comprises four plane portions corresponding to the four sides of the rectangle or square
  • the straight lines 110 are parallel to two sides of such rectangle or square.
  • the invention achieves the proposed aim and objects, since it allows obtaining an evaporator for the heat pump system of a laundry treating appliance having a relatively small volume of the single duct wherein the refrigerant flows, and a high overall thermal exchange surface; this evaporator allows using in the heat pump system a flammable refrigerant, like for example propane (R290) or propylene (R1270), which have a very low Global Warming Potential (GWP), fulfilling the regulation requirements related to flammable refrigerant charge, and keeping at the same time a high energetic efficiency.
  • a flammable refrigerant like for example propane (R290) or propylene (R1270)
  • GWP Global Warming Potential

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP20169726.5A 2020-04-15 2020-04-15 Wäschebehandlungsgerät mit wärmepumpensystem Pending EP3896210A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20169726.5A EP3896210A1 (de) 2020-04-15 2020-04-15 Wäschebehandlungsgerät mit wärmepumpensystem
AU2021202150A AU2021202150A1 (en) 2020-04-15 2021-04-08 A laundry treating appliance having a heat pump system
CN202110406759.XA CN113584825A (zh) 2020-04-15 2021-04-15 具有热泵***的衣物处理设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20169726.5A EP3896210A1 (de) 2020-04-15 2020-04-15 Wäschebehandlungsgerät mit wärmepumpensystem

Publications (1)

Publication Number Publication Date
EP3896210A1 true EP3896210A1 (de) 2021-10-20

Family

ID=70292783

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20169726.5A Pending EP3896210A1 (de) 2020-04-15 2020-04-15 Wäschebehandlungsgerät mit wärmepumpensystem

Country Status (3)

Country Link
EP (1) EP3896210A1 (de)
CN (1) CN113584825A (de)
AU (1) AU2021202150A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015120487A1 (de) * 2014-11-26 2016-06-02 Akg Thermotechnik International Gmbh & Co. Kg Wärmeaustauscher
EP3066406A1 (de) * 2013-11-06 2016-09-14 BSH Hausgeräte GmbH Wärmepumpe für ein haushaltsgerät
CN108691179A (zh) * 2017-03-31 2018-10-23 Bsh家用电器有限公司 衣物烘干器具
EP3617393A1 (de) * 2018-08-30 2020-03-04 Electrolux Appliances Aktiebolag Wäschetrockner mit einem wärmepumpensystem

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3066406A1 (de) * 2013-11-06 2016-09-14 BSH Hausgeräte GmbH Wärmepumpe für ein haushaltsgerät
DE102015120487A1 (de) * 2014-11-26 2016-06-02 Akg Thermotechnik International Gmbh & Co. Kg Wärmeaustauscher
CN108691179A (zh) * 2017-03-31 2018-10-23 Bsh家用电器有限公司 衣物烘干器具
EP3617393A1 (de) * 2018-08-30 2020-03-04 Electrolux Appliances Aktiebolag Wäschetrockner mit einem wärmepumpensystem

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DOMANSKI P A ET AL: "Performance of a finned-tube evaporator optimized for different refrigerants and its effect on system efficiency", INTERNATIONAL JOURNAL OF REFRIGERATION, ELSEVIER, AMSTERDAM, NL, vol. 28, no. 6, 1 September 2005 (2005-09-01), pages 820 - 827, XP004998949, ISSN: 0140-7007, DOI: 10.1016/J.IJREFRIG.2005.02.003 *

Also Published As

Publication number Publication date
AU2021202150A1 (en) 2021-11-04
CN113584825A (zh) 2021-11-02

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