EP2628838A1 - Appareil ménager doté d'un dispositif de séchage - Google Patents

Appareil ménager doté d'un dispositif de séchage Download PDF

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Publication number
EP2628838A1
EP2628838A1 EP12401024.0A EP12401024A EP2628838A1 EP 2628838 A1 EP2628838 A1 EP 2628838A1 EP 12401024 A EP12401024 A EP 12401024A EP 2628838 A1 EP2628838 A1 EP 2628838A1
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EP
European Patent Office
Prior art keywords
mass
appliance according
household appliance
compressor
stator
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.)
Granted
Application number
EP12401024.0A
Other languages
German (de)
English (en)
Other versions
EP2628838B1 (fr
Inventor
Patrick Grawe
Matthias Hollenhorst
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.)
Miele und Cie KG
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Miele und Cie KG
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Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Priority to PL12401024T priority Critical patent/PL2628838T3/pl
Priority to EP12401024.0A priority patent/EP2628838B1/fr
Priority to ES12401024.0T priority patent/ES2515041T3/es
Publication of EP2628838A1 publication Critical patent/EP2628838A1/fr
Application granted granted Critical
Publication of EP2628838B1 publication Critical patent/EP2628838B1/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
    • 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
    • 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 
    • D06F58/206—Heat pump arrangements

Definitions

  • the invention relates to a household appliance with a drying device, such as a tumble dryer, washer-dryer or dishwasher, wherein the drying is carried out by or with the assistance of a heat pump, which includes a rotary compressor, in particular a rotary piston compressor.
  • a drying device such as a tumble dryer, washer-dryer or dishwasher
  • a heat pump which includes a rotary compressor, in particular a rotary piston compressor.
  • the essential functional components of a heat pump cycle are a heat exchanger with evaporator, a condenser, a compressor and an expansion valve, see for example DE 43 04 226 A1 .
  • a capillary can be used to throttle the refrigerant.
  • the drying material is usually applied to heated air and then the moisture is condensed by cooling the drying air and thereby removed.
  • the condenser supports the heating and the evaporator the cooling.
  • Compressors were initially used with reciprocating compressors, meanwhile, more and more rotary compressors are used because they have a better efficiency. In the case of rotary compressors, in particular the rotary piston compressor is preferred.
  • the compressed material in this case refrigerant
  • refrigerant is sucked in from outside through a suction valve. It enters the stator, a stationary cylinder with an eccentric rotor (rolling piston).
  • the refrigerant at normal pressure is trapped between the stator wall and the cylindrical rotor.
  • the eccentric rotation of the rotor causes pressure fluctuations, which put the stator in torsional vibrations. These vibrations are transmitted to the connected refrigerant pipes and generate more noise in the device.
  • the pressure fluctuations lead to a problem with regard to the fatigue strength of the pipes and their connections. Cracks may occur and the resulting loss of refrigerant can cause the compressor to fail.
  • the invention thus raises the problem of reducing the noise in a household appliance of the type mentioned and to improve the fatigue strength of the pipes and connections.
  • the compressor is assigned as a vibration damper at least one oscillatory mass whose natural frequency is tuned to the torsional vibrations generated by the compressor.
  • a mass is fastened to the stator by means of a spring element.
  • the mass forms with the spring element a pendulum whose natural frequency is in a certain ratio to the frequency of the torsional vibrations to be eliminated. If the natural frequency is adjusted so that it corresponds to the frequency of the torsional vibrations, the oscillatory mass can perform large deflections, the forces at the point of the spring element are then also large. As a result, the oscillatory mass at this frequency deprives the stator of energy for its own vibrations.
  • the compressor comprises an at least approximately hollow-cylindrical stator and the oscillatory mass is arranged at least around a part of the stator jacket.
  • the compensation of the vibrations takes place close to the compressor.
  • the oscillatory mass can be designed as a sleeve.
  • the sleeve surrounds the stator jacket with at least partial interposition of an elastomer.
  • the elastomer acts as a spring element, which ensures the vibration of the mass.
  • the use of elastomer according to the invention results in a structure that is easy to manufacture, which is also more robust than, for example, a metal spring.
  • the sleeve is formed from an elastomer, to which optionally non-elastomeric parts by weight are added.
  • the elastomer acts both as a spring element and as a mass, whereby the structure is further simplified.
  • Good vibration ability is achieved if the sleeve comprises lamellae which extend at least approximately parallel to the stator axis. If the width and / or depth of the slats vary over their length and thus the mass-stiffness ratio, a broadband Tilger Mann can be achieved.
  • stator is mounted on a base plate which is fixed on the household appliance via elastic foot elements, and as a vibration damper the oscillatable mass is arranged on at least one of the foot elements.
  • the mass can also be arranged on several foot elements together an oscillatory mass. Then it is particularly advantageous if the mass is formed as at least approximately part-circular plate which surrounds the stator. On the one hand, such a construction is easily tunable with regard to its natural frequency and, on the other hand, it is easy to manufacture and assemble.
  • the foot elements prefferably have two areas, the first area extending between the base plate and the household appliance, the second area protruding beyond the base plate, and the oscillatable mass (s) being fastened to the second area (are).
  • FIG. 1 can be seen in a schematic representation of the principle of a compression heat pump 1.
  • the compression heat pump 1, short heat pump 1 has an evaporator 2, a compressor 3, a condenser 4 and an expansion valve 5, which is here indicated as a capillary tube.
  • the evaporator 2, the compressor 3, the condenser 4 and the expansion valve 5 are components of a closed circuit 6, which is flowed through by a refrigerant, starting from the evaporator 2, the compressor 3, the condenser 4, to the throttle point 5 and finally back to the evaporator 2.
  • FIG. 2 shows a schematic of a dryer 10 with such a heat pump assembly.
  • refrigerant KM is guided in a refrigerant line 11 via the evaporator 2, the compressor 3, the condenser 4, and the expansion valve (not shown).
  • the evaporator 2 and the condenser 4 of the heat pump 1 are arranged in the process air circuit 14 such that a heat exchanger 12 contains the evaporator 2, at which the moisture-laden process air PL is cooled and dehumidified by condensation.
  • the resulting condensation is collected in a condensate collection tank 13.
  • the cooled process air PL is reheated at the condenser 4 of the heat pump assembly 1 and introduced into the drying drum 15.
  • a closed process air circuit 14 is shown; an open process air duct is also conceivable, for example in the case of an exhaust air dryer or a dishwasher.
  • FIGS. 3 to 7 Now show compressor 3 of the rotary compressor type, in particular of the rotary piston compressor type, in which an inventive energy withdrawal of torsional vibrations takes place by resonance.
  • the compressor comprises an at least approximately hollow cylindrical stator 20, in which, in a known manner, a motor-driven rolling piston (not shown) rotates.
  • the stator 20 is mounted on a triangular base plate 21, which via elastic foot elements 22 on the bottom trough 23 of the dryer housing 16 (see FIG. 2 ) is mounted oscillatory.
  • three bolts 24 are screwed to the bottom tray 23, on each of which an elastomeric sleeve 25 is inserted.
  • the elastomer sleeves 25 then each take a bore (not shown) in a corner of the base plate 21.
  • a supply line 27 and a discharge line 26 are connected for the refrigerant KM, of which only one piece is shown in the drawings.
  • a liquid separator 28 is integrated in the supply line 27 in the supply line 27, a liquid separator 28 is integrated.
  • FIGS. 3 and 3a show a compressor 3 with a first embodiment of a vibration absorber.
  • a cuff 30, which is arranged around the upper area of the stator 20, is used as the oscillatable mass.
  • the sleeve 30 is formed as a two-part sheet metal assembly.
  • Each sleeve portion 31 and 32 has four c-shaped recesses 33 in the edge region, are formed by the tongue-shaped suspensions 34.
  • Means of these suspensions are attached to the inside of the sleeve parts each two elastomer rings 35, as from the synopsis of FIGS. 3 and 3a is clearly recognizable.
  • Each sleeve part has at its non-curved edges 36 bent portions 37, which form on one side a continuous contact surface 38 and on the other side a part of a male hinge 39.
  • the contact surfaces 38 are provided with an unrecognizable bore through which a bolt 40 can be inserted.
  • the two sleeve parts 31 and 32 under Liner of the elastomeric rings 35 are attached to the stator 20 around. Welding or riveting are of course also conceivable.
  • the rings 35 form spring elements which ensure the ability of the sleeve 30 to vibrate.
  • the natural frequency of this oscillatable mass can be adjusted by the mass of the sleeve 30 (influenced by its material thickness or geometry) and / or by the hardness or the geometry of the elastomer rings 35.
  • FIG. 3 are indicated by the arrow 41, the vibrations of the stator 20.
  • this goes into resonance during operation of the compressor 3 and oscillates in opposite phase to the stator 20, which is indicated by the arrow 42.
  • the compressor amplitude and thus also the vibrations of the refrigerant lines 26 and 27 are significantly reduced.
  • a collar 50 is also used as a vibratory mass.
  • the cuff 50 consists only of an elastomer. It can be slipped over the stator 20 and adheres there with appropriate design of their width by friction and adhesion. Also glued joints are conceivable. Then, instead of a closed collar, a rectangular element can be used. Slots 52 are created through slots 51 in the direction of the stator longitudinal axis, which then combine both the spring element and the oscillatable mass in a single component. The vibration ability of the fins 52 is in FIG. 4a indicated by its dashed line.
  • the foot elements 22 are formed according to a first modification 60. They have an elastomeric sleeve 25, which is extended by a circumferential bead 61. Thus, the attachment of a triangular sheet or laminated core is made possible. The sheet or laminated core then extends parallel to the base plate 21 between this and the bottom pan 23, not shown here. It serves as a vibratory mass. As a spring element, the foot element 22 itself is used here. The stiffness of the elastomer sleeves 25 and the mass or the moment of inertia of the sheet metal or laminated core must be tuned so that a resonance arises during compressor operation.
  • FIGS. 6 and 7 show compressors 3, the foot elements are formed according to a second modification 70.
  • the elastomer sleeves 25 are axially extended, but above the base plate. This results in a first region 71 between the bottom trough 23 and base plate 21 and a second region 72, which projects beyond the base plate 21.
  • the reception of one or more masses 73 or 74 takes place at this second region 72, the second region 72 itself serving as a spring element.
  • These masses 73 and 74 may be plugged, glued, vulcanized or the elastomer sleeves 25 are made so massive that they provide even enough mass to act as a vibration absorber can.
  • the Tilger Sign is in the embodiment after FIG. 6 achieved by three separate masses 73, which in contrast to the above-described embodiments mainly perform translational oscillations (arrows 75). In this variant, it may also be useful to use different masses 73 in order to damp vibrations at different frequencies.
  • the mass may also be designed as an annular or C-shaped plate 74 and be connected to several or all elastomer sleeves 25.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Compressor (AREA)
  • Vibration Prevention Devices (AREA)
EP12401024.0A 2012-02-17 2012-02-17 Appareil ménager doté d'un dispositif de séchage Active EP2628838B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL12401024T PL2628838T3 (pl) 2012-02-17 2012-02-17 Sprzęt gospodarstwa domowego z urządzeniem suszącym
EP12401024.0A EP2628838B1 (fr) 2012-02-17 2012-02-17 Appareil ménager doté d'un dispositif de séchage
ES12401024.0T ES2515041T3 (es) 2012-02-17 2012-02-17 Aparato doméstico con un equipo secador

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12401024.0A EP2628838B1 (fr) 2012-02-17 2012-02-17 Appareil ménager doté d'un dispositif de séchage

Publications (2)

Publication Number Publication Date
EP2628838A1 true EP2628838A1 (fr) 2013-08-21
EP2628838B1 EP2628838B1 (fr) 2014-09-03

Family

ID=45814464

Family Applications (1)

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EP12401024.0A Active EP2628838B1 (fr) 2012-02-17 2012-02-17 Appareil ménager doté d'un dispositif de séchage

Country Status (3)

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EP (1) EP2628838B1 (fr)
ES (1) ES2515041T3 (fr)
PL (1) PL2628838T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013221982A1 (de) * 2013-10-29 2015-04-30 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit einer Wärmepumpe
DE102014206650A1 (de) 2014-04-07 2015-10-08 BSH Hausgeräte GmbH Trockner mit einer vibrationsarmen Wärmepumpe und Verfahren zu seinem Betrieb
DE102014106604A1 (de) * 2014-05-12 2015-11-12 Miele & Cie. Kg Haushaltsgerät wie besipielsweise ein Wäschetrockner mit einer Wärmepumpeneinheit
EP3135807A1 (fr) 2015-08-27 2017-03-01 BSH Hausgeräte GmbH Appareil menager comprenant une conduite anti-vibratoire et son procede de fabrication
WO2018063133A3 (fr) * 2016-09-29 2018-05-17 Arçeli̇k Anoni̇m Şi̇rketi̇ Lave-vaisselle équipé d'une pompe à chaleur
CN112629071A (zh) * 2020-12-11 2021-04-09 安徽美博智能科技有限公司 一种低温全热回收型风冷热泵机组

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3467187B1 (fr) 2017-10-09 2021-12-22 Whirlpool Corporation Filtre conçu pour être utilisé dans une machine à sécher le linge et machine à sécher le linge équipé d'un tel filtre
DE102019114739A1 (de) 2019-06-03 2020-12-03 Vaillant Gmbh Kompressor-Lüfter-Management

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5888476A (ja) * 1981-11-18 1983-05-26 Matsushita Electric Ind Co Ltd 密閉形回転圧縮機の吸振装置
JPS58187635A (ja) * 1982-04-26 1983-11-01 Matsushita Electric Ind Co Ltd 密閉型電動圧縮機の防振装置
JPS61175286A (ja) * 1985-01-30 1986-08-06 Bridgestone Corp コンプレツサ−の吸振構造
JPH0436077A (ja) * 1990-05-30 1992-02-06 Matsushita Refrig Co Ltd 回転型圧縮機の振動減衰装置
DE4304226A1 (de) 1993-02-12 1994-08-18 Miele & Cie Trockengerät, insbesondere Kondensationswäschetrockner mit einer Wärmepumpe
JP2007136054A (ja) * 2005-11-22 2007-06-07 Toshiba Corp 洗濯乾燥機
WO2007073052A1 (fr) * 2005-12-21 2007-06-28 Lg Electronics Inc. Compartiment destine a modulariser un systeme de pompe a chaleur dans un seche-linge, et seche-linge presentant ce compartiment
JP2008088919A (ja) * 2006-10-03 2008-04-17 Toshiba Corp ヒートポンプ機構およびヒートポンプ機構を有するドラム式洗濯乾燥機
JP2010057545A (ja) * 2008-09-01 2010-03-18 Toshiba Corp 洗濯乾燥機
JP2011167223A (ja) * 2010-02-16 2011-09-01 Panasonic Corp 洗濯機

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5888476A (ja) * 1981-11-18 1983-05-26 Matsushita Electric Ind Co Ltd 密閉形回転圧縮機の吸振装置
JPS58187635A (ja) * 1982-04-26 1983-11-01 Matsushita Electric Ind Co Ltd 密閉型電動圧縮機の防振装置
JPS61175286A (ja) * 1985-01-30 1986-08-06 Bridgestone Corp コンプレツサ−の吸振構造
JPH0436077A (ja) * 1990-05-30 1992-02-06 Matsushita Refrig Co Ltd 回転型圧縮機の振動減衰装置
DE4304226A1 (de) 1993-02-12 1994-08-18 Miele & Cie Trockengerät, insbesondere Kondensationswäschetrockner mit einer Wärmepumpe
JP2007136054A (ja) * 2005-11-22 2007-06-07 Toshiba Corp 洗濯乾燥機
WO2007073052A1 (fr) * 2005-12-21 2007-06-28 Lg Electronics Inc. Compartiment destine a modulariser un systeme de pompe a chaleur dans un seche-linge, et seche-linge presentant ce compartiment
JP2008088919A (ja) * 2006-10-03 2008-04-17 Toshiba Corp ヒートポンプ機構およびヒートポンプ機構を有するドラム式洗濯乾燥機
JP2010057545A (ja) * 2008-09-01 2010-03-18 Toshiba Corp 洗濯乾燥機
JP2011167223A (ja) * 2010-02-16 2011-09-01 Panasonic Corp 洗濯機

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013221982A1 (de) * 2013-10-29 2015-04-30 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit einer Wärmepumpe
DE102013221982B4 (de) 2013-10-29 2023-07-06 BSH Hausgeräte GmbH Haushaltsgerät mit einer Wärmepumpe
DE102014206650A1 (de) 2014-04-07 2015-10-08 BSH Hausgeräte GmbH Trockner mit einer vibrationsarmen Wärmepumpe und Verfahren zu seinem Betrieb
DE102014106604A1 (de) * 2014-05-12 2015-11-12 Miele & Cie. Kg Haushaltsgerät wie besipielsweise ein Wäschetrockner mit einer Wärmepumpeneinheit
DE102014106604B4 (de) 2014-05-12 2017-03-30 Miele & Cie. Kg Haushaltsgerät wie besipielsweise ein Wäschetrockner mit einer Wärmepumpeneinheit
EP3135807A1 (fr) 2015-08-27 2017-03-01 BSH Hausgeräte GmbH Appareil menager comprenant une conduite anti-vibratoire et son procede de fabrication
DE102015216441A1 (de) 2015-08-27 2017-03-02 BSH Hausgeräte GmbH Haushaltsgerät mit einer schwingungsgedämpften Rohrleitung und Verfahren zu seiner Herstellung
WO2018063133A3 (fr) * 2016-09-29 2018-05-17 Arçeli̇k Anoni̇m Şi̇rketi̇ Lave-vaisselle équipé d'une pompe à chaleur
CN112629071A (zh) * 2020-12-11 2021-04-09 安徽美博智能科技有限公司 一种低温全热回收型风冷热泵机组

Also Published As

Publication number Publication date
EP2628838B1 (fr) 2014-09-03
ES2515041T3 (es) 2014-10-29
PL2628838T3 (pl) 2015-01-30

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