EP2932881B1 - Trocknungsvorrichtung für Haushaltsmaschinen - Google Patents

Trocknungsvorrichtung für Haushaltsmaschinen Download PDF

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Publication number
EP2932881B1
EP2932881B1 EP15157510.7A EP15157510A EP2932881B1 EP 2932881 B1 EP2932881 B1 EP 2932881B1 EP 15157510 A EP15157510 A EP 15157510A EP 2932881 B1 EP2932881 B1 EP 2932881B1
Authority
EP
European Patent Office
Prior art keywords
tank
closure
closure element
movable
drying agent
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
EP15157510.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2932881A2 (de
EP2932881A3 (de
Inventor
Rudolf Lonski
Kurt Wallerstorfer
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.)
Sanhua Aweco Appliance Systems GmbH
Original Assignee
Sanhua Aweco Appliance Systems 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 Sanhua Aweco Appliance Systems GmbH filed Critical Sanhua Aweco Appliance Systems GmbH
Priority to PL15157510T priority Critical patent/PL2932881T3/pl
Publication of EP2932881A2 publication Critical patent/EP2932881A2/de
Publication of EP2932881A3 publication Critical patent/EP2932881A3/de
Application granted granted Critical
Publication of EP2932881B1 publication Critical patent/EP2932881B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A47L15/481—Drying arrangements by using water absorbent materials, e.g. Zeolith
    • 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 
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A47L15/486—Blower 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 drying device for household machines, such as dishwashers, washing machines or the like, according to the preamble of claim 1.
  • drying devices One problem with such drying devices is to ensure that when transporting the drying device or the household machine with such a drying device, the hygroscopic liquid used as the desiccant does not leak. It should be noted in particular that such a household machine can take a tilted position during transport relative to the operating position.
  • Object of the present invention is to improve over the prior art, the leak safety.
  • a drying device with a tank for the liquid desiccant, with a tank inlet for the return of the desiccant and with a tank outlet for the removal of the desiccant at least one closure element for liquid-tight closure of the tank inlet and / or the tank outlet is provided.
  • Such a closure element reliably prevents the drying agent from escaping from the tank inlet and / or the tank outlet, independently of the tilting position of the tank for the liquid desiccant.
  • the tank inlet and the tank outlet are designed to be closed at least simultaneously when the drying device is at a standstill.
  • the drying device is completely insensitive to tilting at least at standstill, for example during transport of a household appliance with such a drying device, but also during the Handling of the drying device even without household appliance, for example during transport and handling before assembly.
  • a filling of the drying device with hygroscopic liquid or with liquid desiccant is thus possible even before assembly.
  • the drying device can be made, for example, completely filled and delivered for assembly.
  • the desiccant outlet can be closed even when the desiccant inlet is open. In this way it can be ensured before the complete closure of the tank, that first the discharge of the drying agent from the tank is prevented in the drying device. Thereafter, a corresponding return time can be waited until the desiccant is returned as completely as possible into the tank via the tank inlet, before the tank inlet is closed.
  • closure element or a plurality of closure elements are designed controllable, so that the corresponding closure of the tank inlet and / or the tank outlet can be controlled by a machine control.
  • a distributor element provided for distributing the desiccant or of the drive motor for the rotatable distributor element. In this way, it is not necessary to open or close the closure element or the closure elements any additional drive device.
  • one or more closure elements in the axial direction with respect to the axis of rotation of the distributor element for the drying liquid or the axis of rotation of the associated drive motor are designed to be movable.
  • the tank inlet and / or tank outlet are arranged at least partially concentrically around the axis of rotation of the distributor element or the drive of the distributor element.
  • the inlet and outlet openings may, for example, be provided in respective cylindrical walls of flow channels for the desiccant which are opened or closed by one or more axially displaceable closure elements.
  • the closure element is formed so that it comprises at least one axial seal.
  • This axial seal seals when pressed in the axial direction on a transverse thereto, preferably arranged at right angles sealing surface, but at least partially could be inclined at an angle, for example, to form a drainage surface.
  • a closure element is provided with two axial seals, so that with a closure element two openings, ie a Tankeinlass- and a Tankauslassö réelle to close or open.
  • these two axial seals are arranged on opposite sides.
  • the two axial seals circularly with different radius, so that different, at least partially concentric flow channels for the drying agent can be formed and sealed with the closure element.
  • a control cam element is advantageously provided, which has at least one radially extending curved path and at least one radial, i. Having in the radial direction, movable adjusting body.
  • This rotatable control cam element is able to rotate in the rotation of the radially movable adjusting body, so that it is subject to a dependent on the speed centrifugal force.
  • By the pressure of the adjusting body on a control cam is then to generate a force in the axial direction, which serves via a mechanical connection to the closure element for closing or opening the tank inlet and / or tank outlet by means of the closure element.
  • a control cam element which is stationary in the axial direction and a control cam element which is movable in the axial direction are provided, between which one or more adjusting bodies are arranged to be movable in the radial direction.
  • the movable in the axial direction control cam element speed dependent and thus be moved by the centrifugal force on the adjusting body relative to the stationary cam element in the axial direction.
  • the closure element is connected via one or more connecting elements with the movable control cam element, so that with the axial movement of the control cam element, the closure element is movable and thus actuated.
  • a driver element for entrainment of the closure element between the closure element and the movable cam element is provided as a connecting element.
  • This driver element for example, when moving, for example, when lifting the movable cam element, the closure element also move, for example, lift.
  • the driver element is also formed as a sealing element for one of the axial seals of the closure element.
  • the driver element can be released, for example, in a direction opposite to the entrainment movement, for example, in a downward movement of the closure element, when the closure element abuts on a retaining element, such as a stop.
  • a return element advantageously in the form of a return spring for adjusting the closed position of the closure element is preferably provided when the rotary drive is turned off and thus no centrifugal force acts on the or the adjusting body. This allows a so-called fail-safe behavior, i. at standstill, the tank outlet is securely closed.
  • This return spring can be provided, for example, for lifting the movable cam control element, so that in the case of an adjustable by centrifugal movable Control cam element this can be reset by means of the return element. If the movable cam control element is lowered by centrifugal force, for example, it can be raised again by the return element.
  • the cams of at least one control cam element are preferably designed so that at least two, but advantageously three switching positions, for example, stroke positions of the closure element are adjustable over the speed.
  • steps or kinks can be provided in a curved path for the adjusting body, which can only be overcome if a centrifugal force threshold value is exceeded.
  • both the tank inlet and the tank outlet should be closed.
  • the tank outlet is preferably closed while the tank inlet remains open. This position serves to ensure that the desiccant located outside the tank for the drying operation is substantially completely returned to the tank before the tank is completely closed by switching off the rotary drive.
  • the distributor element For the operation of the drying device, the distributor element is acted upon at full speed, so that both the tank inlet and the tank outlet are open. In this state, the distributor element can remove drying liquid from the tank, distribute in the drying room for air to be dried or nebulized and with Return water-laden drying liquid to the tank.
  • the adjusting body or bodies described above are preferably designed as balls in order to best ensure their mobility on the curved paths and to avoid tilting.
  • a distributor element preferably a fan of a fan is used, so that this fan in a double function on the one hand for air transport from the working space of the appliance, for example, the dishwasher and on the other hand for distributing the drying agent is used.
  • the circulated air in the household machine is permanently brought into contact with desiccant, so that a corresponding moisture exchange can take place.
  • the device 1 for drying according to FIG. 1 comprises a tank 2 with a bottom tray 3 and a lid 4.
  • the lid 4 is inverted funnel-shaped and extends with an outlet nozzle far into the bottom tray 3 inside.
  • a plunger eighth which has a plate shape 9 on its upper side, on whose upper side cam tracks 10 for adjusting balls 11 are arranged.
  • the plunger 8 is movable in the axial direction (double arrow A).
  • the plunger 8 thus serves as a movable cam control element.
  • Above the plunger 8 is rotatably connected to the plunger 8 a rigidly connected to a drive shaft 12 curve control element 13 is provided, the upper cam tracks 14 has.
  • the drive shaft 12 is rotatably connected to a motor output shaft 15 of an electric motor 16.
  • the tailpipe 7 of the fan wheel 6 is divided at the lower end into an outer centrifugal element 17 and an inner guide tube 18.
  • the guide tube 18 is positively against the lower end of the plunger 8 and partially passes through a closure element 19.
  • the closure element comprises a radial sealing lip 20 and two axial sealing lips, ie the lower axial sealing lip 21 and the upper axial sealing lip 22.
  • the sealing lips 21, 22 are attached to two concentric to each other annular sub-elements 23, 24 of the closure element 19 and connected to an annular disc-shaped transverse web 25.
  • a driver element 26 is fastened by means of a pivot bearing 27.
  • the driver element 26 can thus be moved in the axial direction over the plunger 8, without rotating with this.
  • the closure element 19 furthermore comprises an outer transverse web 28, which extends laterally up to the level of a plurality of stop elements 29 at the bottom of the base pan 3.
  • the lid 4 Above the lid 4 is the drying room 30, in which the fan wheel 6 rotates and which is closed with an upper lid 31.
  • the upper lid 31 supply and exhaust elements are provided, in the figures, only the exhaust pipe 32 can be seen.
  • FIG. 1 shows as well as the FIGS. 4 and FIG. 7 the full-speed condition with the inlet open and the desiccant outlet open.
  • the cycle of the drying agent 33 takes place in FIG. 1 as follows.
  • the drying agent 33 is collected or stored in the floor pan 3.
  • the closure element 19 rests with the transverse web 28 on the stop element 29 and is separated from the driver element 26. Between the driver element 26 and the lower axial sealing lip 21 there is thus obtained an inlet annular gap 34, through which the desiccant, for example in the form of a lithium chloride solution, can reach the interior of the inner part element 23 of the closure element 9.
  • the drying agent passes upwards and penetrates the spaces between the plunger 8, the tail pipe 7 of the impeller 6 and the funnel-shaped intermediate part 36, which connects the tail pipe 7 with the fan 6.
  • the plunger 8 may be formed in the region of the channels 35 for forming the channels with cross-shaped cross-section, so that the plunger 8 suitable both for transmitting an axial tensile or compressive force and for transmitting torque and thereby in the axial direction permeable to liquid.
  • the drying agent then passes in an upward movement in the area of the fan wheel 6, where it is distributed in the drying space 30 and comes into contact with air to be dried.
  • the returning drying liquid which is enriched with moisture or loaded with water, is collected via the funnel shape of the lid 4 and returned down into the outlet pipe 5.
  • the drying liquid is thrown off at the lower end in the radial direction and thus passes through an annular gap between an axial sealing surface 37 and the upper axial sealing lip 22 back into the tank 2.
  • the annular gap 38 forms a Auslassringspalt 38th
  • the plunger 8 in the in FIG. 1 shown position against the return pressure of a return spring 39 which is disposed between the plunger 8 and the tail pipe 7 of the fan, pressed down.
  • the driver element 26 is pressed down toward the bottom of the bottom tray 3, whereby the closure member 19 rests against the stops 29 and the inlet ring gap 34 opens.
  • the driver element 26 is provided with driver elements explained in more detail below, so that it is movable in the axial direction to a certain extent to open the inlet ring gap 34 with respect to the closure element 19, but after the opening of the inlet ring gap, the closure element 19 with after pull down so that the Auslassringspalt 38 is opened.
  • FIG. 1 As in FIG. 1 can be seen, are the Verstellkugel 11 in its radial outer end position, ie FIG. 1 represents a position at maximum speed.
  • the state is in accordance FIG. 2 one.
  • the return spring 39 pushes the plunger 8 upwards, while the adjusting balls 11 lie in a central position with a medium radius due to the reduced centrifugal force.
  • the driver element 26 is raised so far that it rests on the lower axial sealing lip 21, so that the inlet ring gap 34 is closed.
  • the condition according to FIG. 3 shows the engine stall, in which the fan 6 does not rotate.
  • the plunger 8 is raised by the return spring 39 in its upper end position, while the Verstellkugeln 11 are in their radially inner end position.
  • the closure element 19 is raised further via the entrainment element 26, so that the outlet annular gap 38 is closed, ie also that the upper axial sealing lip 22 rests against the sealing surface 37.
  • the tank 2 is completely closed, ie the drying liquid, for example, the lithium chloride solution is stored leak-proof.
  • FIG. 4 is the cropping out FIG. 1 shown, in which the adjusting balls 11 have taken their radially outer end position.
  • the upper curved path 14 has a bend 40.
  • an intermediate position for the adjusting ball 11 is defined as in FIG. 5 is shown.
  • This intermediate position corresponds to the operating state according to FIG. 2 ,
  • the adjusting ball 11 is in the bend 40, resulting in a certain stability of this position, which is overcome only when a certain threshold of centrifugal force and thus the speed is exceeded to the position according to FIG. 4 take.
  • FIG. 6 shows the rest position of the adjusting balls 11 in the upper end position of the plunger 8. This position corresponds FIG. 3 ,
  • FIG. 7 shows the fully open condition corresponding to the maximum speed and highest centrifugal force.
  • the inlet ring gap 34 is also open as the Auslassringspalt 38.
  • a tension element 41 of the driver element 26 can be seen, which may for example be hook-shaped or formed as a latching element and is axially displaceable relative to the closure element 19 to some extent.
  • FIG. 7 shows the driving position of the driver element 26, in which the driver element 26 pulls over the tension member 41, the closure element 19 with downward.
  • FIG. 8 shows the described position at half speed, ie the plunger 8 is slightly raised, so that the driver element 26 abuts the closure member 19 and the lower axial sealing lip 21 and the inlet ring gap 34 seals. In this position, returning drying liquid can still be conveyed back through the outlet ring gap 38 into the tank via the spin element 17.
  • the plunger 8 When the speed is reduced to a standstill, the plunger 8 is further raised by the return spring 39, the driver element 26 entrains the closure member 19 and lifts until the upper axial sealing lip 22 abuts against the sealing surface 37 and the Auslassringspalt 38 is closed.
  • the driver element 26 When comparing between FIG. 7 and FIG. 8 one recognizes the path length with which the tension element 41 is movable relative to the closure element 19. In the upward movement the driver element 26 thus acts directly as a driver, in which the driver element presses sealingly against the lower sealing lip 21. In the downward movement, the driver element 26 is also active as a driver via the tension element 41, wherein this entrainment function begins only when the inlet ring gap 34 is open.
  • the invention is not limited to the illustrated embodiment, it is only essential that a closure element for liquid-tight closure of the tank inlet and / or tank outlet in a drying device according to the preamble of claim 1 is present.
  • the illustrated embodiment shows advantageous developments, with which additional improvements of the leakage protection can be achieved.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Drying Of Solid Materials (AREA)
EP15157510.7A 2014-04-16 2015-03-04 Trocknungsvorrichtung für Haushaltsmaschinen Active EP2932881B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15157510T PL2932881T3 (pl) 2014-04-16 2015-03-04 Urządzenie suszące do sprzętu gospodarstwa domowego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014005539 2014-04-16

Publications (3)

Publication Number Publication Date
EP2932881A2 EP2932881A2 (de) 2015-10-21
EP2932881A3 EP2932881A3 (de) 2015-12-02
EP2932881B1 true EP2932881B1 (de) 2017-06-07

Family

ID=52598638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15157510.7A Active EP2932881B1 (de) 2014-04-16 2015-03-04 Trocknungsvorrichtung für Haushaltsmaschinen

Country Status (6)

Country Link
US (1) US9788704B2 (pl)
EP (1) EP2932881B1 (pl)
CN (1) CN105020990B (pl)
DE (1) DE102015103443A1 (pl)
ES (1) ES2638854T3 (pl)
PL (1) PL2932881T3 (pl)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108882826A (zh) * 2015-11-16 2018-11-23 伊莱克斯电器股份公司 洗碗机以及用于从洗碗机的搁物架上去除洗涤液体的方法
CN105962871B (zh) * 2016-06-24 2018-07-13 佛山市顺德区美的洗涤电器制造有限公司 洗碗机
CN106562753B (zh) * 2016-11-09 2019-11-19 三花亚威科电器设备（芜湖）有限公司 控制开关、除湿装置和洗碗机
CN106580222B (zh) * 2016-11-09 2019-12-17 三花亚威科电器设备（芜湖）有限公司 除湿装置和具有其的洗碗机
CN106562737B (zh) * 2016-11-09 2019-09-06 三花亚威科电器设备（芜湖）有限公司 干燥系统和具有其的洗碗机
CN106580221A (zh) * 2016-11-09 2017-04-26 杭州三花家电热管理系统有限公司 分配叶轮、除湿装置和洗碗机
CN108852240B (zh) * 2017-05-15 2021-11-16 浙江三花智能控制股份有限公司 除湿装置和具有其的洗碗机

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WO1999026025A1 (en) * 1997-11-16 1999-05-27 Drykor Ltd. Dehumidifier system
CN2338561Y (zh) * 1998-07-13 1999-09-15 中国石化大庆石油化工总厂炼油厂 流体物料的旋转分配阀
US6477743B1 (en) * 2001-08-14 2002-11-12 Seaquist Closures Foreign, Inc. Twist-openable dispensing closure accommodating optional liner puncture feature
CN100383326C (zh) * 2002-07-05 2008-04-23 乐金电子(天津)电器有限公司 洗衣机的液体洗涤剂自动投入装置
US8091735B2 (en) * 2004-02-13 2012-01-10 Intelligent Coffee Company, Llc Liquid dispensing system
GB0509946D0 (en) * 2005-05-16 2005-06-22 Wabco Automotive Uk Ltd Air dryer cartridge
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KR101614165B1 (ko) * 2010-01-12 2016-04-20 동부대우전자 주식회사 액체세제 공급장치
DE102010006005A1 (de) * 2010-01-27 2011-07-28 Elopak Systems Ag Dosiervorrichtung und Dosierverfahren für Flüssigkeiten
DE102011117735B4 (de) 2011-08-22 2015-07-02 Sanhua Aweco Appliance Systems Gmbh Haushaltsmaschine mit einer Trocknung feuchter Gegenstände
DE102011117734A1 (de) 2011-08-22 2013-02-28 Mecoswiss Mechanische Componenten Gmbh & Co.Kg Haushaltsmaschine mit einer Trocknung feuchter Gegenstände

Also Published As

Publication number Publication date
US9788704B2 (en) 2017-10-17
EP2932881A2 (de) 2015-10-21
US20150297057A1 (en) 2015-10-22
CN105020990A (zh) 2015-11-04
PL2932881T3 (pl) 2017-11-30
EP2932881A3 (de) 2015-12-02
CN105020990B (zh) 2019-07-05
DE102015103443A1 (de) 2015-10-22
ES2638854T3 (es) 2017-10-24

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