EP3469136B1 - Groupe de base pour un appareil pour secher linge et appareil pour secher linge - Google Patents

Groupe de base pour un appareil pour secher linge et appareil pour secher linge Download PDF

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Publication number
EP3469136B1
EP3469136B1 EP17728158.1A EP17728158A EP3469136B1 EP 3469136 B1 EP3469136 B1 EP 3469136B1 EP 17728158 A EP17728158 A EP 17728158A EP 3469136 B1 EP3469136 B1 EP 3469136B1
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EP
European Patent Office
Prior art keywords
section
base
drying
floor
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17728158.1A
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German (de)
English (en)
Other versions
EP3469136A1 (fr
Inventor
Ralf BÖMMELS
Manoochehr DARVISH
Andrea LOHRMANN
Thomas Nawrot
Martin Schubert
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL17728158T priority Critical patent/PL3469136T3/pl
Publication of EP3469136A1 publication Critical patent/EP3469136A1/fr
Application granted granted Critical
Publication of EP3469136B1 publication Critical patent/EP3469136B1/fr
Active 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 
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements

Definitions

  • the invention relates to a floor assembly for a device for drying laundry, having at least one partition floor with at least one support section for supporting a condenser of a heat pump, wherein at least one recess with a support base is formed on the support section, on which the condenser can be placed, and at least a duct section adjoining the support section downstream with respect to a drying air flow with an air inlet opening which is arranged at a distance from an arrangement plane of the support base.
  • the invention also relates to a device for drying laundry.
  • a tumble dryer comprises a heat pump with two heat exchangers, namely a condenser which emits heat to drying air used for drying laundry and an evaporator which absorbs heat from the drying air.
  • the heated drying air is fed to the laundry to absorb moisture from it.
  • the moisture absorbed by the drying air during the drying of the laundry is condensed by means of the evaporator, to which the drying air laden with the moisture is fed, and thereby separated from the drying air.
  • a tumble dryer with a heat pump has a significantly lower energy consumption than a tumble dryer without a heat pump.
  • the energy efficiency of a tumble dryer with a heat pump increases with the volume of the heat exchangers used in the heat pump, i.e. the volume of the condenser and the evaporator.
  • a limited installation space is available for the arrangement of the heat exchangers of the heat pump, which is restricted by subassemblies adjoining the heat pump, for example by a belt driving a laundry drum or a self-cleaning system for cleaning a heat exchanger of the heat pump.
  • a heat pump contains a refrigerant that circulates in a closed circuit and is cyclically evaporated while absorbing heat and is condensed while releasing heat. Most of the refrigerant evaporates in the heat pump's evaporator. The refrigerant flows into the evaporator as a mixture of liquid and gas. The refrigerant then reaches a compressor of the heat pump as a gas, where it is compressed. The compressor is also the drive that drives the refrigerant through the closed circuit. From the compressor, the compressed refrigerant reaches the condenser of the heat pump, where it is liquefied while releasing heat.
  • the liquefied refrigerant passes into an expansion device, in particular a valve, a diaphragm or a capillary, in which the internal pressure of the refrigerant is reduced and in which the refrigerant is already partially converted back into gas.
  • an expansion device in particular a valve, a diaphragm or a capillary, in which the internal pressure of the refrigerant is reduced and in which the refrigerant is already partially converted back into gas.
  • the resulting mixture of liquid and gas is returned to the evaporator.
  • a condensate collecting basin can be arranged at the bottom, in which water condensed on the evaporator of the heat pump can collect. If a tumble dryer also has a self-cleaning system for cleaning a heat exchanger of the heat pump, the condensate collecting basin is also used to collect the rinsing liquid used here.
  • the heat exchangers of the heat pump are usually arranged above the condensate collecting basin, for which purpose a separating floor can be arranged above the condensate collecting basin, on which the heat exchangers stand. The installation space below the heat exchanger or the partition is thus limited by the condensate collecting basin.
  • a floor assembly of a clothes dryer which has a partition floor which is arranged below a condenser and an evaporator of a heat pump of the clothes dryer and on which the condenser and the evaporator stand.
  • a trough-like, watertight depression is formed on the separating floor and is open towards the condenser, with a floor of the depression lying completely below a maximum liquid fill level of a condensate collecting basin arranged on the bottom underneath the separating floor and the condenser standing on the floor.
  • This design of the partition is the The installation space for the condenser is increased so that a condenser with a larger volume can be installed to increase the efficiency of the tumble dryer.
  • the DE 11 2013 003 575 T5 shows a washer-dryer with a heat pump.
  • the heat exchanger unit of the heat pump is arranged in the floor pan of the tumble dryer and has a condensate pan for collecting condensed water.
  • Vertical support structures that support the condenser or the evaporator are formed on the edges of the condensate pan.
  • the duct has a step downwards which widens the duct cross-section.
  • a floor assembly according to the invention for a device for drying laundry comprises at least one partition floor with at least one support section for supporting a condenser of a heat pump, with at least one recess being formed on the support section with a support base on which the condenser can be set up, and at least one with respect to each other a drying air flow downstream of the support section adjoining duct section with an air inlet opening which is arranged at a distance from an arrangement plane of the support base.
  • the partition floor comprises at least one air guiding section, which is downstream with respect to the drying air flow of the support section is arranged and which has at least one deflecting section which rises from the support base in the direction of the channel section without flow edges. An end of the air guiding section facing away from the recess is aligned with an entry edge of the air inlet opening.
  • a wall perpendicular to the flow direction of the drying air is arranged downstream of the condenser, against which a portion of the drying air flowing along the support section impacts and exits from a lower section of the condenser close to the support floor.
  • This impact surface or the flow edge formed by it can lead to measurable fluctuations from a volume flow of the drying air of about 210 m 3 / h, i.e. to unstable conditions in the power consumption of a process air fan of the device which the drying air can be circulated in the drying air circuit of the device during a drying process.
  • This increases the power consumption of the process air fan and the energy consumption of the device.
  • Unsteady vortex shedding occurs at the impact surface or its flow edge, which causes the increased energy consumption and also generates undesirable noises.
  • the drying air can flow into the channel section in the same direction via the air guide section and the air inlet opening on the channel section.
  • Disadvantageous vortex shedding does not occur with the floor pan according to the invention.
  • a proportion of drying air flowing along the supporting floor is deflected by means of the deflection section away from the plane of the supporting floor in the direction of the air inlet opening. Since the deflection section rises without a flow edge, the drying air deflected by it is guided by the deflection section with a very low flow resistance.
  • the power consumption of a process air fan of the device can be compared to the power consumption of the process air fan of the in DE 10 2014 211 303 A1 described device can be reduced, which is associated with a lower energy consumption of the device.
  • the complete elimination of vortex shedding less noise is generated during a drying process, which is associated with quieter operation of the device.
  • the end of the air guiding section facing away from the depression is aligned with the leading edge of the air inlet opening, the drying air can be introduced into the air inlet opening with the least possible flow resistance.
  • the leading edge can in particular be a lower leading edge of the air inlet opening.
  • the end of the air guiding section that is aligned with the leading edge of the air inlet opening can be formed by the deflecting section or by a portal section adjoining the deflecting section downstream with respect to the drying air flow.
  • the air path of the drying air through the floor pan is optimized with regard to flow resistance and noise generation. This can significantly reduce the power consumption of the process air fan. A maximum achievable volume flow of the drying air through the drying air circuit can be increased significantly, which leads to better performance values.
  • the proportion of drying air that emerges from a lower section of the condenser near the support floor can be raised to the leading edge of the air inlet opening closest to the plane of the support floor so that it can be introduced into the duct section of the drying air circuit without hitting an impact surface or flow edge to be able to.
  • the proportion of drying air can be raised from the level of the lower outlet edge of the condenser, which is close to the support floor, to the level of the lower inlet edge of the air inlet opening.
  • the dividing floor forms a wall section close to the floor or a lower wall section of a heat pump section of the drying air circuit of the device for drying laundry, which is formed by the floor assembly.
  • the drying air is circulated in the drying air circuit and is guided through the heat pump section.
  • the drying air flows around the heat exchangers of the heat pump of the floor assembly, which are arranged within the heat pump section, with the condenser and, if necessary, an evaporator also standing on the partition floor.
  • the partition floor can have the support section for supporting the condenser of the heat pump of the floor assembly and also a support section for supporting the evaporator of the heat pump.
  • the dividing floor thus serves to carry at least the condenser and to guide the drying air during a drying process carried out with the appliance for drying laundry.
  • the recess formed on the support section for the capacitor is preferably trough-like, watertight and open towards the capacitor.
  • the bottom of the support tray of the recess, on which the condenser can be set up can be arranged completely below a maximum liquid filling height of a condensate collecting basin of the tray assembly arranged on the bottom side below the dividing tray. Since the depression is trough-like and watertight, a bottom section of the condenser arranged in the depression can be arranged lower than is possible with conventional dividing floors that are arranged completely above a maximum liquid filling level of a condensate collecting basin of a tumble dryer.
  • a condenser with an overall height can be installed in a device for drying laundry which is greater than the overall height of a condenser which can be installed in the same device without the floor pan according to the invention.
  • the possible size of a condenser depends, among other things, on how far the support base of the recess is arranged below the maximum liquid filling height of the condensate collecting basin.
  • the condenser could come into direct contact with a liquid present in the condensate collecting basin at a high, in particular maximum, liquid level in the condensate collecting basin.
  • This risk would be all the greater with a device that is equipped with a self-cleaning system for cleaning at least one heat exchanger of its heat pump, since with such a device, at least during a corresponding self-cleaning, a larger amount of liquid can accumulate in the condensate collecting basin.
  • a corresponding immersion of the condenser in a liquid contained in the condensate collecting basin would result in a loss of performance of the condenser, since on the one hand the liquid would cool down the condenser and thereby indirectly the drying air to be heated by the condenser and on the other hand the relative humidity in the vicinity of the condenser would be increased , which, however, is ideally 0%.
  • the floor pan according to the invention or its arrangement on a device for drying laundry a corresponding loss of performance of the condenser can be effectively avoided.
  • the plane of arrangement of the support base is to be understood as a plane which runs through sections of the support base which define a flat support surface for carrying the capacitor.
  • the fact that the air inlet opening is arranged at a distance from an arrangement plane of the supporting base means in particular that the arrangement plane of the supporting base does not run through the air inlet opening. This is for example according to the floor pan DE 10 2014 211 303 A1 given.
  • the air guide section which is arranged downstream of the support section in relation to the drying air flow in the drying air circuit, can be connected to the support base directly or indirectly via an intermediate section.
  • the partition floor can also have two or more air guide sections according to the invention.
  • the air guiding section can be formed partially or completely by the deflecting section.
  • the air guide section can be produced monolithically with the rest of the partition.
  • the deflection section is designed in the form of a ramp pointing in the direction of the air inlet opening. This represents a configuration of the deflecting section that is easy to manufacture.
  • the air guiding section can at least partially have a convex or concave arched air guiding surface free of flow edges.
  • the air guiding section comprises at least one portal section running parallel to the arrangement plane of the support base, which adjoins the deflecting section downstream with respect to the drying air flow.
  • the portal section or its surface coming into contact with the drying air can be aligned with an entry edge of the air inlet opening.
  • the deflection section merges into the portal section, for example via a convex rounding or the like, without a flow edge.
  • the floor assembly comprises a condensate collecting basin arranged below the dividing floor, the supporting floor being arranged completely below a maximum liquid filling level of the condensate collecting basin.
  • a device according to the invention for drying laundry comprises a base assembly according to one of the aforementioned configurations or any combination of at least two of these configurations with one another.
  • the device is set up for drying wet and / or damp laundry using condensation drying.
  • the device includes a drying air circuit which is partially formed by the floor pan.
  • the device can be designed as a household device in the form of a clothes dryer or a washer dryer.
  • Fig. 1 shows a schematic sectional illustration of an exemplary embodiment for a floor assembly 1 for a device 2 for drying laundry.
  • the floor assembly 1 comprises a partition floor 3 with a support section 4 for supporting a condenser 5 of a heat pump of the floor assembly 1 and a support section 6 for supporting an evaporator, not shown, of the heat pump.
  • the dividing floor 3 forms a wall section close to the floor of a heat pump section 14 formed by the floor pan 1 of a drying air circuit (not shown) of the device 2.
  • the heat pump section 14 is closed on the side opposite the separating floor 3 with a cover (not shown).
  • the floor assembly 1 further comprises a duct section 12, which adjoins the support section 4 downstream with respect to a drying air flow indicated by the arrow 11, with an air inlet opening 13 which is arranged at a distance from an arrangement plane 18 of the support floor 8.
  • the air inlet opening 13 is arranged offset upwards to the arrangement plane 18 or geodetically higher than the support base 8.
  • the channel section 12 forms part of the drying air circuit.
  • the partition base 3 comprises an air guiding section 15 which is arranged downstream of the support section 4 with respect to the drying air flow and which has a deflection section 16 that rises from the support base 8 in the direction of the channel section 12 without any flow edges.
  • the deflection section 15 is designed in the form of a ramp pointing in the direction of the air inlet opening 13.
  • the air guiding section 15 also comprises a portal section 17 running parallel to the arrangement plane 18 of the support base 8, which adjoins the deflecting section 16 downstream with respect to the drying air flow.
  • An end of the air guide section 15 or of the portal section 17 facing away from the recess 7 is aligned with a lower entry edge 19 of the air inlet opening 13 a lower section of the condenser 5 close to the support base or flows along the support base 8, can be diverted in the direction of the air inlet opening 13 of the channel section 12.
  • the structure of the air guide section 15 is clearer in FIG Figs. 2 and 3 to recognize.
  • Fig. 2 shows a schematic and perspective representation of the in Fig. 1
  • the support sections 4 and 6 of the partition 3 are shown, the recess 7 with the support base 8 being formed on the support section 4.
  • the air guide section 15 arranged on the support section 4 comprises the ramp-shaped deflection section 16 and the portal section 17 adjoining it facing away from the recess 7.
  • FIG. 11 shows a schematic sectional view of the FIG Figs. 1 and 2 It can be seen in particular that the air guide section 15 has the ramp-shaped deflection section 16 and the portal section 17 adjoining it facing away from the recess 7.

Landscapes

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

Claims (6)

  1. Module de plancher (1) pour un appareil (2) de séchage de linge, comprenant :
    au moins un plancher séparateur (3) comprenant au moins une section porteuse (4) destinée à supporter le condensateur (5) d'une pompe à chaleur, au moins un enfoncement (7) étant réalisé sur la section porteuse (4) avec un plancher porteur (8), sur lequel on peut poser le condensateur (5), et
    au moins une section de conduit (12) continuant, en se référant à un courant d'air de séchage en aval du courant, la section porteuse (4), et dotée d'un orifice d'entrée d'air (13), lequel se trouve, partant d'un plan de disposition (18) du plancher porteur (8), en quinconce vers le haut par rapport au plan de disposition (18),
    caractérisé en ce que le plancher séparateur (3) comprend au moins une section de conduite d'air (15) disposée, en se référant au courant d'air de séchage, en aval de la section porteuse (4) et qui comprend au moins une section coudée (16) montant sans aspérité pour l'écoulement partant du plancher porteur (8) dans la direction de la section de conduit (12).
  2. Module de plancher (1) selon la revendication 1, caractérisé en ce que la section coudée (16) est réalisée sous la forme d'une rampe face à l'orifice d'entrée d'air (13).
  3. Module de plancher (1) selon la revendication 1 ou 2, caractérisé en ce que la section de conduite d'air (15) comprend au moins une section de portail (17) passant parallèlement au plan de disposition (18) du plancher porteur (8), laquelle continue, en se référant au courant d'air de séchage, en aval la section coudée (16).
  4. Module de plancher (1) selon l'une des revendications 1 à 3, caractérisé en ce qu'une extrémité de la section de conduite d'air (15) tournant le dos à l'enfoncement (7) s'aligne sur une arête d'entrée (19) de l'orifice d'entrée d'air (13).
  5. Module de plancher (1) selon l'une des revendications 1 à 4, caractérisé par un godet de recueillement du condensat (10) disposé sous le plancher séparateur (3), le plancher porteur (8) se trouvant entièrement en deçà d'une hauteur de remplissage de liquide (9) maximale du godet de recueillement du condensat (10).
  6. Appareil (2) de séchage de linge, caractérisé par un module de plancher (1) selon l'une des revendications 1 à 5.
EP17728158.1A 2016-06-09 2017-06-01 Groupe de base pour un appareil pour secher linge et appareil pour secher linge Active EP3469136B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17728158T PL3469136T3 (pl) 2016-06-09 2017-06-01 Zespół dolny do urządzenia do suszenia prania i urządzenie do suszenia prania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016210166.8A DE102016210166A1 (de) 2016-06-09 2016-06-09 Bodengruppe für ein Gerät zum Trocknen von Wäsche und Gerät zum Trocknen von Wäsche
PCT/EP2017/063284 WO2017211673A1 (fr) 2016-06-09 2017-06-01 Module de base destiné à un appareil de séchage du linge et appareil de séchage du linge

Publications (2)

Publication Number Publication Date
EP3469136A1 EP3469136A1 (fr) 2019-04-17
EP3469136B1 true EP3469136B1 (fr) 2021-09-01

Family

ID=59014615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17728158.1A Active EP3469136B1 (fr) 2016-06-09 2017-06-01 Groupe de base pour un appareil pour secher linge et appareil pour secher linge

Country Status (5)

Country Link
EP (1) EP3469136B1 (fr)
CN (1) CN109312527B (fr)
DE (1) DE102016210166A1 (fr)
PL (1) PL3469136T3 (fr)
WO (1) WO2017211673A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018210525A1 (de) * 2018-06-27 2020-01-02 BSH Hausgeräte GmbH Bodengruppe für ein Gerät zum Trocknen von Wäsche

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004135755A (ja) * 2002-10-16 2004-05-13 Matsushita Electric Ind Co Ltd 洗濯乾燥機
JP4817816B2 (ja) * 2005-11-24 2011-11-16 株式会社東芝 衣類乾燥機
JP5075731B2 (ja) * 2008-05-12 2012-11-21 株式会社東芝 洗濯乾燥機
KR101542389B1 (ko) * 2009-02-05 2015-08-06 엘지전자 주식회사 히트펌프모듈 및 히트펌프모듈을 이용한 건조장치
EP2573252B1 (fr) * 2011-09-26 2014-05-07 Electrolux Home Products Corporation N.V. Appareil de traitement du linge avec pompe à chaleur
EP2573253B1 (fr) * 2011-09-26 2016-09-07 Electrolux Home Products Corporation N.V. Sèche-linge à pompe à chaleur
JP2013150774A (ja) * 2011-12-27 2013-08-08 Panasonic Corp 洗濯乾燥機
EP2628845A1 (fr) * 2012-02-20 2013-08-21 Electrolux Home Products Corporation N.V. Machine de traitement du linge avec échangeur de chaleur et procédé canal d'air
KR101919887B1 (ko) * 2012-05-15 2018-11-19 엘지전자 주식회사 의류건조기
JP6023976B2 (ja) * 2012-07-19 2016-11-09 パナソニックＩｐマネジメント株式会社 衣類乾燥機
EP2708639A1 (fr) * 2012-09-14 2014-03-19 Electrolux Home Products Corporation N.V. Appareil ménager avec un dispositif de guidage de liquide
CN105518208B (zh) * 2013-04-17 2017-12-22 伊莱克斯家用电器股份公司 衣物干燥机
EP2843115B1 (fr) * 2013-08-27 2018-05-16 Electrolux Appliances Aktiebolag Sèche-linge à tambour rotatif
EP2843119B1 (fr) * 2013-08-30 2017-10-11 Electrolux Appliances Aktiebolag Appareil traitement du linge ayant un système de prévention de surchauffe
DE102014211303A1 (de) 2014-06-13 2015-12-17 BSH Hausgeräte GmbH Bodengruppe für einen Wäschetrockner, sowie Wäschetrockner mit einer solchen
EP2990523B1 (fr) * 2014-08-29 2017-03-29 Electrolux Appliances Aktiebolag Sèche-linge à pompe thermique
DE102014224214A1 (de) * 2014-11-27 2016-06-02 BSH Hausgeräte GmbH Wäschetrocknungsgerät und Verfahren zum Betreiben eines Wäschetrocknungsgeräts

Also Published As

Publication number Publication date
WO2017211673A1 (fr) 2017-12-14
EP3469136A1 (fr) 2019-04-17
CN109312527A (zh) 2019-02-05
PL3469136T3 (pl) 2022-01-10
CN109312527B (zh) 2021-03-26
DE102016210166A1 (de) 2017-12-14

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