EP0521815B2 - Machine à laver la vaisselle dont la cuve de lavage est pourvue d'une ouverture d'aération en communication avec l'air ambiant - Google Patents

Machine à laver la vaisselle dont la cuve de lavage est pourvue d'une ouverture d'aération en communication avec l'air ambiant Download PDF

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Publication number
EP0521815B2
EP0521815B2 EP92710019A EP92710019A EP0521815B2 EP 0521815 B2 EP0521815 B2 EP 0521815B2 EP 92710019 A EP92710019 A EP 92710019A EP 92710019 A EP92710019 A EP 92710019A EP 0521815 B2 EP0521815 B2 EP 0521815B2
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EP
European Patent Office
Prior art keywords
dishwasher
cabinet
air
accordance
vent
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.)
Expired - Lifetime
Application number
EP92710019A
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German (de)
English (en)
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EP0521815B1 (fr
EP0521815A1 (fr
Inventor
Wilfried Hüttemann
Rüdiger Bläsing
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Miele und Cie KG
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Miele und Cie KG
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Application filed by Miele und Cie KG filed Critical Miele und Cie KG
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    • 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
    • A47L15/488—Connections of the tub with the ambient air, e.g. air intake or venting 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
    • A47L15/4251—Details of the casing
    • A47L15/4257—Details of the loading door

Definitions

  • the subject matter of the invention relates to a dishwasher with a washroom closable by a door and with a washroom vent opening connecting the washroom to the ambient air or the like in the appliance door and a mixing chamber for removing the moist air from the washroom when drying dishes, in the mixing chamber opens into a separate fresh air duct and a blower is provided for the transport of the mixed air, which is connected on the suction side both to the flushing space vent and to the fresh air duct.
  • the known dishwasher has one of the Ventilation outgoing vent to remove the moist air from the rinsing container when drying the dishes.
  • the ventilation duct opens into one separate in the appliance door Fresh air duct, followed by a mixing chamber is.
  • a common blower with two fluidically separate impellers - each for one channel - ensures the distance the moist exhaust air from the rinsing container.
  • the amount of air delivered by the two impellers are dimensioned so that in the ambient mixed air the dew point is not undercut, so that no steam or vapors become visible.
  • In the known facility is a complex fan with two separate blower chambers required. About that beyond the entire life of the blower there is always a constant volume flow ratio.
  • the program duration is also in the section Drying in this known dishwasher without disadvantages when drying dishes cannot be shortened.
  • the invention is dependent on the actual prevailing steam and vapor development Always the right mix ratio in the wash cabinet between the externally supplied Fresh air and the moist process air from the Rinse tank and vice versa in a selectable Volume ratio to dish drying automatically adjusted, whereby with optimally adjusted Volume ratio also advantageously shorter Drying times can be achieved.
  • the variable mixing chamber allows maximum suction the mixed air laden with moisture, without any steam or vapor being visible becomes.
  • the direct series connection the mixing chamber and the Fresh air blower as well as by avoiding a direct fresh air addition to process air in the Rinsing tank short channel paths without complex construction Valve flap controls with little effort realized.
  • FIG. 1 is a schematic representation a program-controlled dishwasher shown in longitudinal section in side view, whose lockable by an appliance door (2) Rinsing area (3) or rinsing container when the Door in the drying section of the program Rinse chamber ventilation opening (4) or the like in the Appliance door (2) with the ambient air for removal of the steam-laden humid air is.
  • this ventilation opening (4) preferably completely locked.
  • the mixing chamber (5) is a blower (7) downstream, which for the The mixed air is removed from the device.
  • the fresh air duct formed in the appliance door (2) (6) and the washroom vent (4) are each run separately and flow out open (Fig. 2) in the suction side on the blower (7) connected mixing chamber (5).
  • the Mischkammar (5) is on a changeable mixing ratio between the via the fresh air duct (6) fresh air supplied and that from the wash cabinet (3) extracted humid air in the sense of a reduction of fresh air and an increase the amount of moist air during the drying time adjustable, the volume flow the mixed air remains constant.
  • the mixing ratio preferably changes continuously, so that towards the end of drying dishes the moist air or air extracted from the wash cabinet (3) Process air share a multiple of the share the one sucked in via the fresh air duct (6) Fresh air.
  • the variable mixing chamber (5) allows maximum suction of moisture loaded mixed air without vapors visibility.
  • the from the wash cabinet (3) of the mixing chamber (5) supplied moist or process air is over one or more regular pressure equalization openings or ventilation points Leaks (19) of the wash cabinet (3) from the Blower (7) sucked in, these intentional leaks (19) opposite the horizontal plane the wash cabinet ventilation opening (4) is offset adjacent and / or opposite washroom side walls (20, 21) are arranged.
  • the setting or adjustment of the mixing chamber (5) on the progress of drying dishes depending on the correct mixing ratio depends on the program, not shown
  • Program switch of the dishwasher (1) causes, the mixing chamber (5) at predeterminable time intervals when drying continuously or in stages (Fig. 3a to 3c), preferably in two adjustment stages (II, III).
  • the mixing chamber (5) has a separate one the mentioned program control of the dishwasher (1) connected mixing chamber control (8) assigned via an adjustment lever (18) with which the mixed air is regulated.
  • the mixing chamber control (8) can be used as a thermal relay, Thermal switch (wax switch), bimetal switch or the like. So can e.g. B. one or more such trigger elements can be connected in series if an adjustment is desired in several stages. over a motor controller (servomotor or the like.) would be for example, a stepless adjustment of the Mixing chamber (5) on the necessary from Mixing ratio determinable drying progress between the moist air and the fresh air realizable.
  • the mixing chamber (5) is connected with the downstream one Fan (7) if necessary with inclusion the mixing chamber control (8) as a pre-testable Built-in module (Fig. 2), which interchangeably arranged in the interior of the appliance door (9) is.
  • mixing chamber (5) could be based on the shutter principle. To set the mixing chamber (5) the correct mixing ratio of the fresh air to process air are opposed to each other adjustable closure elements used, which the fresh air duct (6) and the wash chamber ventilation opening (4) are assigned.
  • Closure elements two concentrically one inside the other inserted and rotatable cylinder tubes (11, 12) are provided, whose outer cylinder surface (13 or 14) and / or their End faces of the cylinder (15 or 16) (17) and passage openings (18) embody which when turning the cylinder tubes (11, 12) can be opened or closed continuously.
  • the opening and closing of the passage openings (18) takes place alternately such that when closing of the fresh air duct (6) at the same time the flushing room ventilation opened by a corresponding amount and vice versa.
  • the passage openings (18) or the shutters (17) are for this directly in front of the fresh air duct (6) and in front of the Rinse area ventilation opening (4).
  • the blower downstream of the mixing chamber (5) (7) is to achieve a low installation effort and to avoid long canal paths aligned coaxially with the cylinder tubes (11, 12), one of the two cylinder tubes (11, 12) is fixed in the door (2) and that second cylinder tube (12) rotatable in the fixed tube stores.
  • the mixing chamber control (8) a slight opening (Fig. 3b, 4a, 4b) of the washing compartment vent (4) as well as a full opening the fresh air duct (6). This makes sense because in the initial phase of drying the moisture content the process air is very high. About one Predeterminable based on empirical values or calculated Period based on values, e.g. B. about 5 minutes, the mixing chamber (5) remains in this position. The volume fraction of the over separate fresh air duct (6) fresh air drawn in is thereby sucked to a multiple of Moisture content from the wash cabinet (3) set.
  • the mixing ratio is either steady or changed in steps as in Figs. 3, 4 and 5 shown.
  • Setting will be towards the end of drying through the wash cabinet ventilation opening (4) the mixing chamber (5) (Fig. 3c and 5a, 5b) completely opened and the fresh air duct (6) almost closed.
  • the one sucked out of the wash cabinet (3) The proportion of moist air or process air is now one Many times that sucked in via the fresh air duct (6) Fresh air.
  • 4a and 4b and 5a and 5b indicate thick and thin arrows increased fresh air addition or the increased Moist air content.
  • the variable mixing chamber (5) enables an optimally adapted to the drying process Aspiration of the moisture-laden Drying air always in the correct mixing ratio, being the volume flow rate from mixed air removed from the device remains constant.
  • the washing area ventilation opening (4) a preferably in the inner door panel (26) Appliance door (2) arranged fixed ventilation grille (27), see Fig. 2 and 6 to 9, upstream, which Vent slots (28) z. B. in segment-like Arrangement. Behind the fixed Ventilation grille (27) or behind the ventilation slots (28) is in the existing through the Mixing chamber (5) to the rear of the empty space one from the outside, for example, by hand (Fig. 6, 7) or with a screwdriver (Fig. 8, 9) adjustable ventilation cover (29) with ventilation cutouts (30).
  • FIG. 6 For manual adjustment, according to Fig. 6 an adjusting pin (31) of the ventilation panel (29) through the ventilation slots (28) of the ventilation grille (27). Concealed in the setting shown the ventilation panel (29) all arranged in segments Vent slots (28) on the vent grille (27) partially, while according to FIG. 8 the Vent slots (28) remain uncovered.
  • Fig. 8 is an aperture setting with the screwdriver make what a screw slot (32) the vent panel (29) the center of the ventilation grille (27). 7 shows the combined with the ventilation grille (27) Ventilation screen (29) in the rear view. In contrast is the vent in Fig. 9 as Item shown in front view.
  • the vent covers (29) can be on the outer circumference a slight toothing (33) or the like which are in cooperation with counter surfaces of the ventilation grille (27) locking positions generate, whereby the respective aperture setting is secured.
  • a slight toothing (33) or the like which are in cooperation with counter surfaces of the ventilation grille (27) locking positions generate, whereby the respective aperture setting is secured.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Ventilation (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)

Claims (19)

  1. Lave-vaisselle comportant une cuve de lavage (3) pouvant être fermée par une porte, ainsi qu'une ouverture d'aération (4) ou analogue dans la porte de la machine, qui relie la cuve de lavage a' l'air ambiant, une chambre de mélange (5) pour évacuer l'air humide de la cuve de lavage lors du séchage de la vaisselle, un canal d'arrivée d'air frais (6) séparé débouchant dans la chambre de mélange (5), et un ventilateur (7), prévu pour transporter l'air de mélange, qui est relié, du coté d'aspiration, à la fois à l'aération de la cuve de lavage et au canal d'arrivée d'air frais (6), caractérisé en ce que l'ouverture d'aération (4) de la cuve de lavage et le canal d'air frais (6) séparé débouchent dans la chambre de mélange (5), la chambre de mélange (5) étant montée en amont et du côté d'aspiration du ventilateur (7), et en ce que la chambre de mélange (5) peut être réglée de manière continue ou graduelle selon le principe du diaphragme d'obturation à un rapport de mélange variable entre l'air frais amené et l'air humide évacué de la cuve de lavage (3) par aspiration, dans le but de réduire la proportion d'air frais et d'augmenter la teneur en air humide pendant la durée du séchage de la vaisselle, le volume du mélange d'air restant constant.
  2. Lave-vaisselle selon la revendication 1, caractérisé en ce que la chambre de mélange (5) est composée de deux tubes cylindriques (11, 12) emboítés de façon concentrique, qui peuvent tourner l'un par rapport à l'autre et qui sont munis de diaphragmes d'obturation (17) et d'ouvertures de passage (18) pouvant être déplacés l'un par rapport à l'autre, lesquels sont disposés sur l'enveloppe extérieure du cylindre (13, 14) et/ou sur une surface frontale du cylindres (15, 16) devant le canal d'arrivée d'air frais (6) et l'ouverture d'aération (4) de la cuve de lavage de telle manière que, lorsqu'on ferme le canal d'air frais (6), l'aération de la cuve de lavage s'ouvre selon un espace correspondant et inversement.
  3. Lave-vaisselle selon les revendications 1 et 2, caractérisé en ce qu'un tube cylindrique (11) est relié ci la porte (2) de la machine avec blocage en rotation et l'autre tube cylindrique (12) est monté dans le tube fixe de façon à pouvoir tourner et comporte un levier de réglage (18) pouvant être actionné par la commande (8) de la chambre de mélange.
  4. Lave-vaisselle selon l'une ou plusieurs des revendications 1 à 3, caractérisé en ce que chaque réglage de la chambre de mélange (5) peut se faire selon un rapport de mélange sélectionnable, en fonction du programme, des parts de volume d'air frais aspiré et d'air provenant de la cuve lavage (3).
  5. Lave-vaisselle selon l'une ou plusieurs des revendications 1 à 4, caractérisé en ce qu'au début de la phase de séchage, sur une durée pouvant être préalablement définie, la part de volume d'air frais aspiré par le biais du canal d'arrivée d'air frais (6) séparé, respectivement la proportion d'air humide évacué par aspiration de la cuve de lavage (3) à la fin de la phase de séchage de la vaisselle, est chaque fois un multiple de la proportion d'air humide, respectivement de la proportion d'air frais aspiré.
  6. Lave-vaisselle selon l'une on plusieurs des revendications 1 à 5, caractérisé en ce qu'au cours du séchage de la vaisselle, il est possible de faire passer la chambre de mélange (5) d'un niveau de réglage de base (I) à, de préférence, deux niveaux de réglage (II, III).
  7. Lave-vaisselle selon l'une ou plusieurs des revendications 1 à 6, caractérisé en ce qu'une commande pour la chambre de mélange (8), commandée séparément par le programme de l'appareil sous la forme d'un entraínement motorisé pour un réglage en continu ou d'un thermo-rupteur à un ou plusieurs niveau(x), tel qu'un interrupteur à cire ou analogues, pour procéder au réglage selon des paliers fixes ou variables, est associée à la chambre de mélange (5).
  8. Lave-vaisselle selon l'une ou plusieurs des revendications 1 à 7, caractérisé en ce que la chambre de mélange (5) maintient fermée l'ouverture d'aération (4) de la cuve de lavage (fig. 3a) pendant les étapes du programme de lavage précédant l'étape de séchage, au cours desquelles l'eau circule.
  9. Lave-vaisselle selon l'une ou plusieurs des revendications 1 à 8, caractérisé en ce que le canal d'arrivée d'air frais (6) et l'ouverture d'aération de la cuve de lavage sont séparés et débouchent librement dans la chambre de mélange (5) raccordée, du côté de l'aspiration, au ventilateur (7).
  10. Lave-vaisselle selon l'une ou plusieurs des revendications 1 à 9, caractérisé en ce que le canal séparé d'air frais (6) est conduit à travers la porte (2) de la machine.
  11. Lave-vaisselle selon l'une ou plusieurs des revendications 1 à 10, caractérisé en ce que la chambre de mélange (5) est disposée de manière interchangeable dans l'espace intérieur de la porte (9).
  12. Lave-vaisselle selon l'une ou plusieurs des revendications 1 à 11, caractérisé en ce que le ventilateur (7) est disposé dans la porte (2) de la machine.
  13. Lave-vaisselle selon l'une ou plusieurs des revendications 1 à 12, caractérisé en ce que la chambre de mélange (5) avec le ventilateur (7) monté en aval et, le cas échéant, avec la commande (8) de la chambre de mélange, est réalisée en tant que module d'intégration pouvant être préalablement testé, et en ce que le ventilateur (7) monté en aval de la chambre de mélange (5) est situé sur le même axe que les tubes cylindriques (11, 12).
  14. Lave-vaisselle selon l'une ou plusieurs des revendications 1 à 13, caractérisé en ce que l'air humide ou l'air issu du processus provenant de la cuve de lavage (3) alimentant la chambre de mélange (5) est, de préférence, aspiré par le ventilateur (7) par le biais d'une ou de plusieurs ouvertures, présentes de manière régulière, d'équilibrage de la pression ou points de ventilation et d'aération (19) de la cuve de lavage (3), ces ouvertures d'équilibrage de la pression ou points de ventilation et d'aération (19) étant disposés de façon décalée par rapport au plan de l'ouverture d'aération (4) de la cuve de lavage, sur des parois (20, 21) adjacentes et/ou opposées de la cuve de lavage.
  15. Lave-vaisselle selon l'une ou plusieurs des revendications 1 à 14, caractérisé en ce que l'ouverture d'aération (4) de la cuve de lavage qui est placée en amont de la chambre de mélange (5) est, de préférence, réalisée dans la partie supérieure gauche ou droite de la porte (2) de la machine, et au moins une ouverture d'équilibrage de la pression on un point de ventilation et d'aération (19) est, de préférence, réalisé(e) en diagonale par rapport à la précédente ouverture, sur la paroi opposée (21) de la cuve de lavage, dans la partie inférieure droite ou gauche de la paroi arrière ou dans la paroi latérale (20) de la cuve de lavage.
  16. Lave-vaisselle selon l'une ou plusieurs des revendications 1 à 15, caractérisé en ce que l'ouverture d'aération de la cuve (22) qui est nécessaire lors de l'étape de lavage ou de l'arrivée d'eau claire (raccordement au réservoir d'eau claire ou analogue) est choisie en tant qu'ouverture d'équilibrage de le pression ou point de ventilation et d'aération (19).
  17. Lave-vaisselle selon l'une ou plusieurs des revendications 1 à 16, caractérisé en ce que la section transversale d'entrée de l'ouverture d'aération (4) de la cuve de lavage pour l'air humide est réglable.
  18. Lave-vaisselle selon la revendication 17, caractérisé en ce qu'à l'avant de la chambre de mélange (5), une grille d'aération fixe (27) avec un diaphragme d'aération réglable (29) est associée a l'ouverture d'aération (4) de la cuve de lavage.
  19. Lave-vaisselle selon les revendications 17 et 18, caractérisé en ce que le diaphragme d'aération (29) peut être réglé manuellement par paliers ou en continu depuis la face intérieure de la porte (2) de la machine.
EP92710019A 1991-07-02 1992-06-27 Machine à laver la vaisselle dont la cuve de lavage est pourvue d'une ouverture d'aération en communication avec l'air ambiant Expired - Lifetime EP0521815B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4121838 1991-07-02
DE4121838 1991-07-02

Publications (3)

Publication Number Publication Date
EP0521815A1 EP0521815A1 (fr) 1993-01-07
EP0521815B1 EP0521815B1 (fr) 1995-02-15
EP0521815B2 true EP0521815B2 (fr) 1998-03-18

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Application Number Title Priority Date Filing Date
EP92710019A Expired - Lifetime EP0521815B2 (fr) 1991-07-02 1992-06-27 Machine à laver la vaisselle dont la cuve de lavage est pourvue d'une ouverture d'aération en communication avec l'air ambiant

Country Status (4)

Country Link
EP (1) EP0521815B2 (fr)
AT (1) ATE118326T1 (fr)
DE (2) DE59201390D1 (fr)
ES (1) ES2068695T5 (fr)

Cited By (1)

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ATE118326T1 (de) 1995-03-15
ES2068695T5 (es) 1998-07-16
EP0521815B1 (fr) 1995-02-15
ES2068695T3 (es) 1995-04-16
EP0521815A1 (fr) 1993-01-07
DE4221182A1 (de) 1993-01-07
DE59201390D1 (de) 1995-03-23

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