EP2946715A2 - Lave-vaisselle doté d'un dispositif de séchage à sorption - Google Patents

Lave-vaisselle doté d'un dispositif de séchage à sorption Download PDF

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Publication number
EP2946715A2
EP2946715A2 EP15168184.8A EP15168184A EP2946715A2 EP 2946715 A2 EP2946715 A2 EP 2946715A2 EP 15168184 A EP15168184 A EP 15168184A EP 2946715 A2 EP2946715 A2 EP 2946715A2
Authority
EP
European Patent Office
Prior art keywords
heater
housing
air
sorption column
dishwasher according
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
EP15168184.8A
Other languages
German (de)
English (en)
Other versions
EP2946715B1 (fr
EP2946715A3 (fr
Inventor
Helmut Jerg
Kai Paintner
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 PL15168184T priority Critical patent/PL2946715T3/pl
Publication of EP2946715A2 publication Critical patent/EP2946715A2/fr
Publication of EP2946715A3 publication Critical patent/EP2946715A3/fr
Application granted granted Critical
Publication of EP2946715B1 publication Critical patent/EP2946715B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to a dishwasher with a rinsing container and devices for rinsing dishes by means of rinsing liquor and with a Sorptionstrockenvorraum which is air-conductively connected to the rinse tank by circulating air and has a heater and a sorbent column with reversibly dehydratable material, wherein the sorbent in a housing with an air inlet and an air outlet is arranged.
  • the DE 103 53 774 and / or the DE 103 53 775 Applicant heats reversibly dehydratable material to very high temperatures for desorption.
  • the stored liquid in this case exits as hot water vapor.
  • an optionally existing line of water vapor is passed into the washing and also heated the air in the washing.
  • the introduction of the hot water vapor and the heated air into the rinsing tank during a partial program step with rinsing liquid to be heated in the treatment space is largely sufficient to sufficiently heat the treatment liquid and / or the dishes.
  • a device for drying dishes in a domestic dishwasher in which the rinsing liquor is heated by a heater disposed outside the washing, preferably an electric water heater, wherein a largely closed drying system is provided in the air from the washing through a through Heating regenerable drying device and circulated from this back into the washing.
  • the drying device consists of a dry container in thermal contact with the heater, which is filled with a moisture adsorbing desiccant.
  • the drying container is formed as a double-walled hollow cylinder, in which the dry material is stored.
  • the arrangement of the inlet and outlet ports for connection to the closed air system takes place in a diagonally opposite arrangement. This results in the disadvantage of a relatively high flow resistance, so that the fan provided for the promotion of the air flow must be operated with very high power. This is negative in terms of noise and energy consumption noticeable.
  • the desorption is time consuming and can also lead to local overheating of the desiccant and thus to its irreversible damage.
  • the desorption is also difficult because the heater is located in the center of the double-walled hollow cylinder and a radial propagation of the heat to the desiccant close to the outer hollow cylinder wall is hardly possible due to the axially flowing air flow.
  • the object of the present invention is therefore to provide a dishwasher in which the dry material contained in a Sorptionstrockenvorraum is evenly heated for the purpose of desorption.
  • the sorption column is arranged in a housing with an air inlet and an air outlet, wherein the heater is arranged in the flow direction of the air in front of the air inlet , As a result, evenly heated air is introduced into the sorption column.
  • the advantage of this procedure is that the air is heated at the inlet of the sorption column, preferably outside of it, whereby this uniformly hot air is supplied and this hot air is passed through the sorption column. Overheating of the reversibly dehydratable material of the sorption column during desorption is excluded. This is especially true when the heater is located outside the housing.
  • the housing has a base area having the air inlet and a cover area having the air outlet. This advantageously ensures a low flow resistance within the sorption column, since the air can be conducted "straight" through the housing of the sorption column.
  • the base surface and / or the top surface are at least partially formed as a sieve, so that the air inlet and / or the air outlet is or are formed by the sieve surface.
  • the flow resistance of the air stream guided through the sorption column can be kept low as a result.
  • the heater and the air inlet are arranged at least partially overlapping.
  • the degree of overlap between the heater and the air inlet of the housing of the sorption column is determined essentially by the type and the power available from a heater.
  • the heater in the immediate vicinity of the air inlet of the sorption column inside the housing of the sorption column.
  • the housing has a heat-insulated housing jacket.
  • This can be formed for example by a double wall.
  • a heat insulation may be applied to the outside of the housing shell.
  • the height of the housing shell is smaller than the width or the diameter of the base and top surfaces.
  • a particularly preferred arrangement here is a cylindrical configuration of the housing of the sorption column, since with this geometric shape, a particularly homogeneous flow through the air flow is ensured.
  • the sorption drying device has a fan with a fan housing for generating an air flow, which is arranged in spatial proximity in front of the air inlet of the housing of the sorption column. This makes it possible to integrally form the fan housing and the housing of the sorption column, so that an overall compact unit is provided, which takes up only a small space in the dishwasher.
  • the blower can be arranged as an axial blower in front of the inlet of the housing of the sorption column.
  • the fan is arranged as a radial fan laterally of the inlet of the housing of the sorption column.
  • the heater used for desorption can be designed as a wire heater, as a tubular heater, as a ceramic heater or in PTC technology.
  • the heater is integrated into the fan housing. This can be particularly easily realized, especially when using a heater in PTC technology, since the resistance layer or layers can be applied to the inside of the housing. Another advantage of using a PTC heater is the ease of fabrication since the layers can be applied by a printing process. Furthermore, the heating power regulates itself over the prevailing temperatures in the heating sections by itself, so that overheating is inherently precluded. By appropriate arrangement or interconnection of individual layer sections, moreover, a heater with several heating powers can be realized.
  • blower, the heater and the housing of the sorption column are formed as a unit, so that there is an overall compact Sorptionstrockenvorraum.
  • the sorption column is used on the one hand for drying the dishes and on the other hand for the desorption of the sorption column Heat energy for at least partially used for heating the rinsing water in the washing and / or the dishes.
  • all other features from the DE 10353774 and or DE 10353775 the applicant may be included in further embodiments.
  • a dishwashing machine with a rinsing container and devices for rinsing dishes by means of rinsing liquor and with a Sorptionstrockenvorraum, which is air-conductively connected to the rinse tank by circulating air and has a heater and a sorbent column with reversibly dehydratable material, the sorption column in a housing with an air inlet and an air outlet, wherein the heater is disposed inside or on the housing of a blower.
  • a dishwasher according to the invention usually has a washing container, are arranged in the baskets for the classification of items to be washed.
  • the drying of the dishes is preferably carried out as in the DE 10353774 and / or the DE 1035375 the applicant described.
  • the content of the registrations DE 10353774 and or DE 1035375 is therefore, as far as appropriate, included in this application.
  • a sorption drying device 1 connected in air-conducting manner to the washing container is provided, which is connected in an air-conducting manner to the washing container and a heater 6, a blower 2 and a sorption column 3 with reversibly dehydratable material, eg. As zeolite having.
  • the sorption column is, as explained above, used both for drying and for heating air conducted through.
  • FIG. 1 1 shows a first exemplary embodiment, which shows the sorption drying device 1 in a sectional side view (FIG. Fig. 1 a) as well as a view from below ( Fig. 1 b) represents.
  • the sorption drying apparatus 1 has a radial fan 2 with a propeller 11 in a housing 8, via whose inlet 12 air is drawn in, compressed and fed to the sorption column 3 via a heater 6 designed as a wire heater.
  • the sorption column 3 is formed in a housing 9 which has a cylindrical shape.
  • a wall 10, also referred to as housing jacket, is provided with an insulation, which may be formed for example in the form of a thermal insulation or a double wall with or without vacuum.
  • the base 6 facing the heater 6 forms an inlet 13 of the sorption column 3, which is preferably designed as a sieve for fixing the reversibly dehydratable material 4 of the sorption column 3 arranged in the housing 9. While the air inlet 13 extends over the entire base area in the exemplary embodiment, an air outlet 7 of the sorption column, arranged in the center of the base area, takes by way of example only a small area section. Due to the size of the air outlet 7, on the one hand, the flow resistance of the passed through the sorption column 3 Air and their exit velocity set in the washing. The airway is indicated by the arrows A, B and C.
  • the heater 6 designed as a wire heater is arranged at least partially with the air inlet 13 overlapping outside of the air inlet of the sorption column. Contrary to the drawing, the wire heater could be formed completely overlapping below the air inlet 13. How big the wire heater is made and which part of the air intake covers it depends essentially on the power dissipated by the wire heater. Due to the outside, but in close proximity to the air inlet 13, arranged heater 6, there is the effect that the guided over the heating away air until entry into the Sorptioskolonne 3 can not or at least not significantly cool, so that an effective heat and Desorption of reversibly dehydratable material is ensured. On the other hand - with possibly too high power output of the heater - no local overheating of reversibly dehydratable material occur.
  • the flow resistance of the air passed through it is determined by the diameter of the spherical reversibly dehydratable material 4.
  • the diameter of the reversibly dehydratable material a tradeoff must be made between the desired surface area of this material and the resulting direct flow resistance. It has proved to be advantageous spherical formed reversibly dehydratable material with a diameter of 2.5 to 5 mm.
  • FIG. 2 shows a second embodiment of a Sorptionstrockenvorraum 1 for use in a dishwasher according to the invention.
  • FIG. 2a shows a sectional side view, Fig. 2b a view from below.
  • the relative arrangement of blower housing 8, heater 6 and housing 9 of the sorption column corresponds to that in connection with Fig. 1 described embodiment.
  • the heating is predominantly formed as a tubular heater (for example in the form of a wire or belt heater), which now extends over the entire surface of the air inlet 13. Disadvantage of a tubular heater is the need for a very high heat output or a very high fan speed. Should the Sorptionstrockenvoriques be used simultaneously for heating treatment liquid in the interior of the washing by hot air or hot steam is introduced into the washing, this type of heating is optionally not suitable for reasons of time.
  • FIG. 3 shows a third embodiment, whose constructive structure also in connection with Fig. 1 corresponds to the example described.
  • FIG. 3a shows a sectional side view, Fig. 3b a view from below.
  • the heater is now designed as a ceramic heater (so-called honeycomb heater), which has a greater robustness than a wire heater.
  • honeycomb heater a ceramic heater
  • a disadvantage of such a heating type is the greater pressure loss when flowing through the heater 6, so that the blower 2 must be operated at a higher speed.
  • FIGS. 4 and 5 show further embodiments in which the heater is formed in the interior of the sorption column 3.
  • the heater preferably extends over a large length over the entire interior of the sorption column 3.
  • the fan 2 both as a radial fan ( Fig. 4 ) as well as axial fan ( Fig. 5 ) can be formed.
  • Fig. 4 a radial fan
  • Fig. 5 axial fan
  • the in Fig. 4 variant shown possible to carry out the marked with the reference numeral 14 air duct with a very small height h, resulting in a more compact arrangement.
  • the variant shown can also be realized with the types of heating mentioned in the preceding embodiments, where appropriate, a larger volume of construction must be accepted.
  • a PTC heater is shown as heating, which is arranged in the interior of the housing 8 of the blower 2.
  • the PTC layer can be applied to the inside of the housing 8 by a printing process.
  • the advantage of a PTC heater is that the heating power is controlled on its own by the temperature prevailing in the PTC layer.
  • the air channel 14 can be made very small, which also results in a compact Sorptionstrockenvorraum.
  • blower 2 heater 6 and sorption column 3 to form an integral unit, in particular to carry out their housing in one piece.
  • a very simple installation of the sorption drying device in the dishwasher is possible, on the other hand, the structural dimensions can be kept low.
  • a dishwasher is provided, with which it is possible to efficiently clean and dry the dishes located in the washing container, and to keep the associated energy consumption as low as possible. Furthermore, a simple assembly is guaranteed, which allows a cost-effective manufacturing process.

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  • Washing And Drying Of Tableware (AREA)
EP15168184.8A 2004-12-09 2005-10-20 Lave-vaisselle doté d'un dispositif de séchage à sorption Expired - Lifetime EP2946715B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15168184T PL2946715T3 (pl) 2004-12-09 2005-10-20 Zmywarka do naczyń z sorpcyjnym urządzeniem suszącym

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004059424 2004-12-09
DE102005004096A DE102005004096A1 (de) 2004-12-09 2005-01-28 Geschirrspülmaschine mit einer Sorptionstrockenvorrichtung
EP05808030.0A EP1833353B1 (fr) 2004-12-09 2005-10-20 Lave-vaisselle a dispositif de sechage a sorption

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP05808030.0A Division-Into EP1833353B1 (fr) 2004-12-09 2005-10-20 Lave-vaisselle a dispositif de sechage a sorption
EP05808030.0A Division EP1833353B1 (fr) 2004-12-09 2005-10-20 Lave-vaisselle a dispositif de sechage a sorption

Publications (3)

Publication Number Publication Date
EP2946715A2 true EP2946715A2 (fr) 2015-11-25
EP2946715A3 EP2946715A3 (fr) 2016-01-20
EP2946715B1 EP2946715B1 (fr) 2017-08-30

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ID=35663655

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15168184.8A Expired - Lifetime EP2946715B1 (fr) 2004-12-09 2005-10-20 Lave-vaisselle doté d'un dispositif de séchage à sorption
EP05808030.0A Expired - Lifetime EP1833353B1 (fr) 2004-12-09 2005-10-20 Lave-vaisselle a dispositif de sechage a sorption

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP05808030.0A Expired - Lifetime EP1833353B1 (fr) 2004-12-09 2005-10-20 Lave-vaisselle a dispositif de sechage a sorption

Country Status (10)

Country Link
US (2) US20070295373A1 (fr)
EP (2) EP2946715B1 (fr)
JP (1) JP4659042B2 (fr)
KR (1) KR20070085898A (fr)
AU (1) AU2005313473B2 (fr)
BR (1) BRPI0518518A2 (fr)
DE (1) DE102005004096A1 (fr)
PL (2) PL2946715T3 (fr)
RU (1) RU2404702C2 (fr)
WO (1) WO2006061287A1 (fr)

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EP2482705B1 (fr) 2009-10-01 2017-05-10 Arçelik Anonim Sirketi Machine à laver la vaisselle présentant une efficacité de séchage accrue
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WO2012062663A1 (fr) 2010-11-12 2012-05-18 Arcelik Anonim Sirketi Lave-vaisselle équipé d'une unité de déshumidification
WO2012062666A1 (fr) 2010-11-12 2012-05-18 Arcelik Anonim Sirketi Lave-vaisselle comprenant une unité de déshumidification
EP2637547B1 (fr) 2010-11-12 2015-03-04 Arçelik Anonim Sirketi Lave-vaisselle comprenant une unité de déshumidification
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ITTO20120597A1 (it) * 2012-07-06 2014-01-07 Indesit Co Spa Elettrodomestico con dispositivo di asciugatura a rigenerazione
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PL1833353T3 (pl) 2015-12-31
EP1833353A1 (fr) 2007-09-19
US20070295373A1 (en) 2007-12-27
WO2006061287A1 (fr) 2006-06-15
EP1833353B1 (fr) 2015-08-05
PL2946715T3 (pl) 2018-01-31
RU2007120227A (ru) 2009-01-20
EP2946715B1 (fr) 2017-08-30
AU2005313473B2 (en) 2011-03-24
DE102005004096A1 (de) 2006-06-14
US8459278B2 (en) 2013-06-11
KR20070085898A (ko) 2007-08-27
JP2008522687A (ja) 2008-07-03
JP4659042B2 (ja) 2011-03-30
RU2404702C2 (ru) 2010-11-27
AU2005313473A1 (en) 2006-06-15
US20120240965A1 (en) 2012-09-27
BRPI0518518A2 (pt) 2008-11-25
EP2946715A3 (fr) 2016-01-20

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