EP3415679B1 - Module inférieur d'un dispositif de traitement du linge ainsi qu'appareil électroménager doté d'un module inférieur - Google Patents

Module inférieur d'un dispositif de traitement du linge ainsi qu'appareil électroménager doté d'un module inférieur Download PDF

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Publication number
EP3415679B1
EP3415679B1 EP18174836.9A EP18174836A EP3415679B1 EP 3415679 B1 EP3415679 B1 EP 3415679B1 EP 18174836 A EP18174836 A EP 18174836A EP 3415679 B1 EP3415679 B1 EP 3415679B1
Authority
EP
European Patent Office
Prior art keywords
cover
underframe
heat
heat exchanger
diffuser
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
EP18174836.9A
Other languages
German (de)
English (en)
Other versions
EP3415679A1 (fr
Inventor
Rainer Ediger
Frank Kohlrusch
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 PL18174836T priority Critical patent/PL3415679T3/pl
Publication of EP3415679A1 publication Critical patent/EP3415679A1/fr
Application granted granted Critical
Publication of EP3415679B1 publication Critical patent/EP3415679B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/206—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 

Definitions

  • the invention relates to a floor pan of a laundry treatment device for holding a heat pump, comprising a heat source and a heat sink, each designed as a heat exchanger, which are at least partially received in a receiving area of the floor pan, which is at least partially received by a cover arranged above the heat source and the heat sink can be covered, the cover having at least one diffuser as part of a system for cleaning the heat source and / or the heat sink.
  • the invention also relates to a household appliance for drying laundry with a floor pan.
  • a household appliance for drying laundry is to be understood in particular as a tumble dryer or a so-called washer-dryer which combines the functions of a washing machine and a tumble dryer in one combination device.
  • laundry treatment machines are increasingly being equipped with heat pumps and operated as so-called heat pump dryers (condensation dryers), in which the electrical heating and the cooling circuit for the so-called process air are formed by the corresponding components of a heat pump.
  • a so-called evaporator which extracts heat from the process air and thereby cools it down, serves as a heat exchanger for extracting heat from the process air stream that previously flows through a laundry treatment room and absorbs moisture from the damp laundry. Moisture previously absorbed by it condenses from the cooled process air.
  • Liquid refrigerant in the heat pump's evaporator absorbs heat (energy) from the process air, evaporates and is sucked out of the evaporator by a compressor.
  • the compressor brings the refrigerant vapor to an increased pressure and thus to a higher temperature and transports it to a condenser or condenser (component of the heat pump that serves as a heater).
  • the refrigerant liquefies again in the condenser Release of heat to the process air coming from the evaporator.
  • an expansion device expansion valve
  • the refrigerant is again expanded to the lower evaporator pressure.
  • the DE 10 2014 211 303 A1 discloses a laundry treatment device designed as a laundry dryer with a floor pan.
  • the floor pan is designed to hold a heat pump that has a heat source designed as a condenser and a heat sink designed as an evaporator.
  • the heat source and the heat sink are accommodated in a receiving area of the floor pan.
  • the receiving area can be covered at least in sections by a cover arranged above the heat source and the heat sink.
  • the cover has a diffuser of a system for cleaning the heat source and / or the heat sink.
  • the evaporator and the condenser are each heat exchangers which, in order to increase their surfaces used for heat exchange, have sheets or lamellas stacked at a distance from one another.
  • the fins have different distances.
  • heat exchangers with small fin spacings require cleaning of the fins in order to ensure permanent heat exchanger performance.
  • the diffuser is used to apply a liquid to the fins of the heat exchanger.
  • the distance between a flushing gap of the diffuser and the front edge of the heat exchanger to be cleaned must always be the same.
  • a floor assembly of a laundry treatment device for holding a heat pump comprising a heat source and a heat sink, each designed as a heat exchanger and at least partially accommodated in a receiving area of the floor assembly, which can be covered at least in sections by a cover arranged above the heat source and the heat sink, wherein the cover comprises at least one diffuser as part of a system for cleaning the heat source and / or the heat sink.
  • the diffuser includes a nozzle which is pivotally connected to the cover.
  • joint components are arranged at opposite ends of a fastening opening in the cover.
  • the articulated components include props and an axis of rotation which is formed on the nozzle and is connected to the props.
  • the EP 2 628 846 A1 discloses a floor pan of a laundry treatment device for holding a heat pump, comprising a heat source and a heat sink, each designed as a heat exchanger and at least partially accommodated in a receiving area of the floor pan, which can be covered at least in sections by a cover arranged above the heat source and the heat sink, wherein the cover has at least one nozzle element as part of a system for cleaning the heat source and / or the heat sink.
  • the nozzle element is connected to a liquid supply source to spray liquid for cleaning the heat exchanger.
  • the cover has a housing in which the nozzle element is mounted pivotably about a pivot axis by means of a pivot bearing.
  • the distance between the flushing gap of the diffuser and the front edge of the heat exchanger is set by means of a screw connection, the screws being displaceable in elongated holes to compensate for tolerances in the position of the heat exchanger relative to the floor pan.
  • Another approach is to pull or push the diffuser into the correct position relative to the heat exchanger by means of positioning elements. This can be achieved with short tolerance chains as they occur on the front heat exchanger. In the case of long chains of tolerance, as can occur on the rear heat exchanger, the positioning of the diffuser relative to the front edge of the rear heat exchanger by pulling or pushing can no longer be implemented.
  • the risk of bypass formation between the rear heat exchanger and a rear contact surface in the receiving area increases if the rear heat exchanger has to be stored floating in the floor pan. This is used to ensure that the heat exchanger can move during the assembly of the cover with the diffuser.
  • the object of the present invention is to simplify the positioning of a diffuser relative to the leading edge of a heat source or heat sink designed as a heat exchanger and to make it more precise.
  • the floor pan according to the invention for holding a heat pump of a laundry treatment device comprises a heat source and a heat sink, which are each designed as a heat exchanger and are at least partially accommodated in a receiving area of the floor pan.
  • the receiving area can be covered at least in sections by a cover arranged above the heat source and the heat sink, the cover having at least one diffuser as part of a system for cleaning the heat source and / or the heat sink, with the diffuser extending essentially perpendicular to the cover Holding elements are arranged, the respective holding element being positively engaged with a respective corresponding element arranged on an end face of the heat exchanger, wherein the at least one diffuser is floatingly mounted in a recess of the cover, and the diffuser a movement of the heat exchanger during assembly the cover on the floor pan follows.
  • the floating diffuser in the recess of the cover enables tolerance compensation at least in the transverse (x-direction) and longitudinal (y-direction) of the heat exchanger to be cleaned, so that the flushing gap of the diffuser can be aligned with the front edge of the heat exchanger .
  • the diffuser can follow a movement of the heat exchanger during the assembly of the cover on the floor pan.
  • the cover and the diffuser can form an integral component, as a result of which the assembly of the cover is simplified.
  • the diffuser can be designed in at least two parts and have a lower shell and an upper shell.
  • the cover and the lower shell can be produced as a common component using the injection molding process.
  • the lower shell is connected to the cover by means of resilient elements.
  • the resilient elements can be designed as separate components.
  • the resilient elements can be designed as connecting webs between the lower shell and the cover.
  • the connecting webs can be formed accordingly during injection molding.
  • the resilient elements arranged on both sides of the diffuser preferably extend essentially in the transverse direction (x direction) of the cover. An arrangement is also conceivable in which part of the resilient elements extends essentially in the transverse direction (x direction) and a further part of the resilient elements extends essentially in the longitudinal direction (y direction) of the cover.
  • the resilient elements can be designed as spring strips, in particular made of a metal.
  • the spring-elastic elements which are designed as spring strips, can be inserted into an injection molding tool in advance. Subsequently, the free ends of the spring strips are overmolded in sections during the production of the cover and the lower shell integrated therein, so that these are firmly connected to the cover and the lower shell of the diffuser.
  • the elements at least restrict a movement of the diffuser in the vertical direction (z-direction). As a result, a minimum vertical distance can be ensured between the flushing gap of the diffuser and the front edge of the heat exchanger.
  • the elements can preferably have a course that is curved at least in sections.
  • the elements can thus have a relatively high spring stiffness, which contributes to a stable connection between the lower shell of the diffuser and the cover.
  • the curved elements have sufficient spring travel to compensate for larger tolerances in the positioning of the lower shell of the diffuser relative to the front edge of the heat exchanger.
  • the upper shell can be attached to the lower shell.
  • the upper shell can be connected to the lower shell after the cover has been fixed on the floor assembly when the tolerances in the arrangement of the flushing gap of the diffuser relative to the front edge of the heat exchanger have been compensated for during assembly.
  • the cover and the diffuser thus form a unit.
  • the upper shell can be connected to the lower shell in a materially or form-fitting manner.
  • the upper shell can preferably be materially connected to the lower shell by gluing or welding.
  • the upper shell can be positively connected to the lower shell by screwing, a sealing element being introduced between the upper shell and the lower shell during assembly.
  • a sealing element being introduced between the upper shell and the lower shell during assembly.
  • a flat sealing material that seals the cover with respect to a process space of the laundry treatment device can only be attached to the cover in areas outside the recess.
  • the gluing of the sealing mat can only be done in the outer edge areas of the cover.
  • no adhesive layer is applied to the flat sealing material or the sealing mat in order to be able to ensure a displacement of the diffuser relative to the cover.
  • the household appliance according to the invention for drying laundry comprises a base assembly according to one of the aforementioned configurations or any combination thereof.
  • the advantages mentioned above with reference to the floor pan are correspondingly associated with the household appliance.
  • the household appliance can be designed, for example, as a tumble dryer or washer dryer with a heat pump.
  • Fig. 1 shows a perspective view of a schematically illustrated floor pan 1 of a household appliance for drying laundry.
  • the floor pan 1 comprises a receiving area 2 for at least partially receiving heat exchangers Heat pump.
  • the floor pan comprises a further receiving area 3, which is used to at least partially accommodate a compressor and a throttle of the heat pump.
  • the floor assembly 1 comprises a wall 4 separating the receiving areas 2 and 3 from one another.
  • the floor assembly 1 also includes a cover 5, which is arranged above the heat exchangers arranged in the receiving area 2.
  • the cover 5 can be connected to the wall 4 and a further wall 6 delimiting the receiving area 2.
  • the further wall 6 extends essentially parallel to the wall 4.
  • the cover 5 has a diffuser 7 which is part of a system known per se for cleaning the heat exchanger (s).
  • the diffuser 7 is arranged in a recess 8 in the cover 5.
  • the diffuser 7 is floatingly supported in the recess 8 by means of resilient elements 9.
  • the recess 8 has a course that essentially corresponds to the outer contour of the diffuser 7.
  • the diffuser 7 comprises an upper shell 18, which on a lower shell 16, such as Figure 4 shown, is firmly or positively fastened.
  • the representation in Fig. 2 shows a top view of the cover 5 of the receiving area 2 of the floor pan 1.
  • the spring-elastic elements 9 are arranged on the outer edges of the diffuser 7 and hold the diffuser 7 in a spaced-apart position relative to the circumferential wall 10 of the cover 5 that delimits the recess 8.
  • the resilient elements 9 are designed as spring strips and have an at least partially curved course in the transverse direction of the cover 5.
  • the floating mounting enables a compensating movement of the diffuser 7 relative to the front edge of the heat exchanger when mounting the cover 5 on the floor pan 1.
  • the resilient elements 9 can be designed as separate components, which with their one free end with the cover 5 and with their other free end are connected to the diffuser 7. Due to the curved course of the resilient elements 9, which are designed as spring strips, a movement of the diffuser 7 in the vertical direction can at least be limited.
  • FIG. 13 shows a sectional view along the line BB according to FIG Fig. 2 .
  • the representation in Fig. 3 shows a heat exchanger 11 designed as a condenser, which is arranged in the receiving area 2 of the floor pan 1.
  • a heat exchanger 11 designed as a condenser, which is arranged in the receiving area 2 of the floor pan 1.
  • the opposite end face not visible in this illustration, is designed accordingly.
  • Underneath the cover 5, holding elements 14 arranged on both sides of the diffuser 7 extend essentially perpendicular to the cover 5.
  • the respective holding element 14 can be brought into positive engagement with a corresponding element 15 arranged on the respective end face 12.
  • the representation in Fig. 4 shows a perspective view from below of the cover 5 shown schematically.
  • the diffuser 7 has a lower shell 16 which is mounted in a floating manner in the recess 8 of the cover 5 by means of the resilient elements 9.
  • the cover 5 and the lower shell 16 can be manufactured as one component by injection molding.
  • the resilient elements 9 can, as already mentioned above, be designed as separate components or they can be present as connecting webs between the lower shell 16 and the cover 5, which are formed accordingly during injection molding.
  • the lower shell 16 is provided with a flushing gap 17 which extends across the width of the heat exchanger 11 arranged below the shell 16.
  • FIG. 5 shows a perspective view of the cover 5 positioned above the heat exchanger 11.
  • the illustration in FIG Fig. 5 shows the upper shell 18 in which it is not yet connected to the lower shell 16.
  • the cover 5 is installed on the floor assembly 1 after the heat exchanger 11 has been positioned in the receiving area 2.
  • the cover 5 is first placed on the walls 4 and 6 of the floor assembly 1 in Fig. 1 placed, the holding elements 14 being positively engaged with the corresponding elements 15 in the region of the front edge of the heat exchanger 11. Subsequently, the cover 5 is aligned with respect to the floor assembly 1 in order to be able to connect them to one another by screwing them together.
  • the floating mounting of the lower shell 16 of the diffuser 7 enables the compensation of positional tolerances in the longitudinal and transverse directions, since the lower shell 16 is maintained in its predetermined position by means of the holding elements 14 when the cover 5 is moved relative to the heat exchanger 11. Subsequent adjustment of the distance between the flushing gap 17 relative to the front edge of the heat exchanger 11 after the installation of the diffuser 7 has been completed, as is the case in the prior art, is not necessary.
  • the flushing gap 17 automatically finds its optimal flushing position during the assembly of the cover 5.
  • the through the floating mounting of the diffuser 7 achievable tolerance compensation therefore always enables an exact positioning of the flushing gap 17 relative to the front edge of the heat exchanger 11, regardless of the positioning of the heat exchanger 11 in the receiving area 2 of the floor pan 1.
  • the upper shell 18 is materially connected to the lower shell 16, which can be done by welding or gluing.
  • the diffuser 7 is completely integrated into the cover 5.
  • cover 5 and diffuser 7 are made in one piece, so that additional seals between them are not required.
  • the necessary openings in the cover 5 to the process air space in the floor assembly 1 are sealed by a sealing mat which is glued to the cover 5 only in the area of the walls 4 and 6. In the area of the cover 5 lying in between, the sealing mat only rests, so that a displacement of the diffuser 7 relative to the cover 5 is ensured.

Landscapes

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

Claims (10)

  1. Bloc inférieur (1) d'un dispositif de traitement du linge servant à renfermer une pompe à chaleur, comprenant une source de chaleur et un dissipateur de chaleur, qui sont configurés respectivement sous forme d'échangeurs de chaleur (11) et sont logés au moins en partie dans une zone de réception (2, 3) du bloc inférieur (1), laquelle peut être recouverte au moins par sections par un capot (5) disposé au-dessus de la source de chaleur et du dissipateur de chaleur, dans lequel le capot (5) comprend au moins un diffuseur (7) en tant que partie d'un système de nettoyage de la source de chaleur et/ou du dissipateur de chaleur, dans lequel des éléments de support (14) s'étendant essentiellement perpendiculairement au capot (5) sont disposés en dessous du capot (5) sur le diffuseur (7), dans lequel l'élément de support (14) respectif est mis en prise par liaison de forme avec un élément (15) correspondant disposé sur un côté avant (12) de l'échangeur de chaleur (11), et dans lequel le au moins un diffuseur (7) est monté de façon flottante dans une cavité (8) du capot (5), et le diffuseur (7) suit un déplacement de l'échangeur de chaleur (11) durant le montage du capot (5) sur le bloc inférieur (1).
  2. Bloc inférieur (1) selon la revendication 1, dans lequel le diffuseur (7) est formé au moins en deux parties et comprend une coque inférieure (16) et une coque supérieure (18).
  3. Bloc inférieur (1) selon la revendication 2, dans lequel la coque inférieure (16) est reliée au capot (5) au moyen d'éléments élastiques formant ressort (9).
  4. Bloc inférieur (1) selon la revendication 3, dans lequel les éléments élastiques formant ressort (9) sont réalisés sous forme de bandes élastiques.
  5. Bloc inférieur (1) selon la revendication 3 ou 4, dans lequel les éléments (9) limitent au moins un déplacement du diffuseur (7) dans le sens vertical.
  6. Bloc inférieur (1) selon l'une des revendications 3 à 5, dans lequel les éléments (9) présentent un tracé arrondi au moins par sections.
  7. Bloc inférieur (1) selon l'une des revendications 2 à 6, dans lequel la coque supérieure (18) peut être fixée à la coque inférieure (16).
  8. Bloc inférieur (1) selon la revendication 7, dans lequel la coque supérieure (18) peut être assemblée par liaison de matière ou par liaison de forme avec la coque inférieure (16).
  9. Bloc inférieur (1) selon l'une des revendications précédentes, dans lequel un élément d'étanchéité plan rendant étanche le capot (5) par rapport à un espace de traitement du dispositif de traitement du linge est fixé au capot (5) uniquement dans des zones situées en dehors de la cavité (8).
  10. Appareil électroménager pour sécher le linge, comprenant un bloc inférieur (1) selon l'une des revendications 1 à 9.
EP18174836.9A 2017-06-12 2018-05-29 Module inférieur d'un dispositif de traitement du linge ainsi qu'appareil électroménager doté d'un module inférieur Active EP3415679B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18174836T PL3415679T3 (pl) 2017-06-12 2018-05-29 Zespół dolny urządzenia do przetwarzania prania i urządzenie gospodarstwa domowego z zespołem dolnym

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017209839.2A DE102017209839A1 (de) 2017-06-12 2017-06-12 Bodengruppe einer Wäschebehandlungsvorrichtung sowie Haushaltsgerät mit einer Bodengruppe

Publications (2)

Publication Number Publication Date
EP3415679A1 EP3415679A1 (fr) 2018-12-19
EP3415679B1 true EP3415679B1 (fr) 2020-12-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18174836.9A Active EP3415679B1 (fr) 2017-06-12 2018-05-29 Module inférieur d'un dispositif de traitement du linge ainsi qu'appareil électroménager doté d'un module inférieur

Country Status (4)

Country Link
EP (1) EP3415679B1 (fr)
CN (1) CN109023869B (fr)
DE (1) DE102017209839A1 (fr)
PL (1) PL3415679T3 (fr)

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Publication number Priority date Publication date Assignee Title
CN2271218Y (zh) * 1996-11-22 1997-12-24 邱明德 中央控制器座与散热座的固定装置
US8857071B2 (en) * 2011-03-29 2014-10-14 Lg Electronics Inc. Clothes treating apparatus having heat exchanger cleaning device
EP2628846B1 (fr) * 2012-02-20 2018-11-14 Electrolux Home Products Corporation N.V. Appareil de traitement du linge avec nettoyage d'échangeur de chaleur
EP2708636A1 (fr) * 2012-09-14 2014-03-19 Electrolux Home Products Corporation N.V. Appareil avec dispositif de guidage de liquide
EP2708639A1 (fr) * 2012-09-14 2014-03-19 Electrolux Home Products Corporation N.V. Appareil ménager avec un dispositif de guidage de liquide
US20160024705A1 (en) * 2013-03-13 2016-01-28 Suspa Gmbh Non-cylindrical damping element suspension
CN203447114U (zh) * 2013-09-04 2014-02-26 美的集团股份有限公司 底座组件和具有它的加热装置
DE102014211303A1 (de) 2014-06-13 2015-12-17 BSH Hausgeräte GmbH Bodengruppe für einen Wäschetrockner, sowie Wäschetrockner mit einer solchen
CN203910574U (zh) * 2014-06-30 2014-10-29 中国西电电气股份有限公司 一种柔性补偿装置以及包括该柔性补偿装置的套管
DE102015216437A1 (de) * 2015-08-27 2017-03-02 BSH Hausgeräte GmbH Wäschetrocknungsgerät mit einem Türflusensieb-Sitz und Verfahren zu seiner Herstellung
KR20170028037A (ko) * 2015-09-03 2017-03-13 삼성전자주식회사 의류건조기
CN106122867A (zh) * 2016-08-02 2016-11-16 上海小糸车灯有限公司 一种能自动补偿安装间隙的oled连接结构

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
CN109023869B (zh) 2022-01-28
EP3415679A1 (fr) 2018-12-19
PL3415679T3 (pl) 2021-06-14
CN109023869A (zh) 2018-12-18
DE102017209839A1 (de) 2018-12-13

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