EP4221556A1 - Haushaltsgeschirrspülmaschine mit zumindest einem luftauslass - Google Patents
Haushaltsgeschirrspülmaschine mit zumindest einem luftauslassInfo
- Publication number
- EP4221556A1 EP4221556A1 EP21777716.8A EP21777716A EP4221556A1 EP 4221556 A1 EP4221556 A1 EP 4221556A1 EP 21777716 A EP21777716 A EP 21777716A EP 4221556 A1 EP4221556 A1 EP 4221556A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- domestic dishwasher
- air outlet
- air
- washing
- dishwasher
- 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.)
- Pending
Links
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
- A47L15/488—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
-
- 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
-
- 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
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/19—Air humidity
-
- 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
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/10—Air circulation, 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
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/12—Air blowers
Definitions
- Household dishwasher with at least one air outlet
- the present invention relates to a household dishwasher with a washing container in which crockery, glasses, cutlery and the like can be processed, and with at least one air outlet for blowing out particularly moist and/or steam-containing washing room air from the washing container, according to the preamble of claim 1 or claim 14 .
- the invention is based on the problem of achieving the greatest possible avoidance of moisture and/or water vapor being applied to surrounding furniture in an attractive optical arrangement.
- the invention solves this problem with a domestic dishwasher having the features of claim 1 and/or claim 14, which can be implemented individually or in combination with one another.
- a domestic dishwasher having the features of claim 1 and/or claim 14, which can be implemented individually or in combination with one another.
- claims 2 to 13 and 15 to 20 Due to the fact that at least one air outlet is arranged in the lower quarter of the height of the appliance according to the invention, if there is a rise in humid and/or steam-containing washing room air that is blown out of the air outlet into the environment at the installation location of the household dishwasher according to the invention, at most, i.e. if at all, the Any moisture and/or water vapor that may have condensed out is applied to the domestic dishwasher itself and furniture not arranged above the domestic dishwasher, such as a kitchen worktop.
- the air outlet extends as a slit outlet over at least half the width of the domestic dishwasher, in particular its base support, a wide distribution of the exiting washing room air that is laden with moisture and/or contains water vapor is achieved.
- the slot outlet preferably has a large slot width and a small slot height in relation to this. The rinsing chamber air flowing out of the rinsing chamber of the washing container is thus distributed over many exit points along the width extension of the slot outlet. A selectively high, i.e.
- washing chamber air volume flow such as would be generated in a household dishwasher with only a single air outlet having an approximately circular cross-sectional area at the outlet of this single air outlet, and which would be associated with a selectively high entry of moisture into the furniture, is avoided.
- the humid and/or steam-containing washing room air which is blown out of the slot outlet extending over at least half the width of the household dishwasher, can be distributed so finely over a larger area outside the household dishwasher according to the invention that it mixes better with ambient air that is drier than it can.
- Moisture and/or water vapor contained in the washing chamber air blown out over at least half the width of the domestic dishwasher by means of the slot outlet according to the invention can be better absorbed by the ambient air.
- the slot outlet ensures a local dilution of the washing room air coming from the washing room of the washing container and of the moisture content in the ambient air contained therein. In this way, condensation of moisture on the front side of the domestic dishwasher, in particular its front door, can be reduced or even largely avoided.
- this largely avoids condensate droplets being able to combine to form larger liquid droplets and these then run or drip down from the air outlet onto the floor at the installation location of the domestic dishwasher.
- the distribution of the blown-out washing room air generated by means of the slot outlet over at least half the width of the household dishwasher, in particular its front door may even make it possible for the volume flow of blown-out washing room air per outlet point of the outlet slot to become so small that along the width extension of the outlet slot the washing chamber air blown out locally across the width can hardly or only insignificantly be perceived by a user of the domestic dishwasher.
- the exit cross-sectional area is expediently smaller, in particular significantly smaller, than the entry cross-sectional area of the air outlet according to the invention. This causes an increase in the flow rate of the scavenge room air blown out of the slot outlet into the environment compared to the flow rate of the scavenge room air upstream before entering the slot outlet. This further reduces the risk of undesirable accumulations of condensate and dripping water on the outlet side of the linear diffuser.
- the narrow slot outlet in the lower quarter of the appliance height of the household dishwasher according to the invention is hardly noticeable to a user standing in front of the household dishwasher according to the invention.
- the width of the slot outlet is at least two thirds of the width of the household dishwasher in order to ensure good distribution of the moist air and mixing with the drier outside air or ambient air in the room reach, in which the household dishwasher according to the invention is housed.
- the air outlet is preferably at least 40 centimeters wide overall, a very broad and even distribution of the moisture can be achieved.
- the air outlet is designed as a flat slot outlet with a height-to-width ratio of less than 1:10, particularly favorably less than 1:20.
- a high discharge surface can be achieved.
- the air outlet can be divided into a number of aligned partial slots, for example two to three partial slots next to each other, each of which includes stiffening vertical webs as a stable separation from one another.
- the air outlet is arranged on the front side of the domestic dishwasher facing the user, the air that exits there and is often laden with moisture and/or water vapor can be distributed quickly and largely freely over a large area.
- the air outlet is arranged at the very bottom end of the front side of the household dishwasher in an optically favorable manner and with minimal restriction of the available installation space.
- the air outlet is provided in the area of the lower edge of a front base panel of the domestic dishwasher according to the invention.
- the plinth panel preferably covers the front side of a base support, on which the washing container is attached above.
- Various functional components of the domestic dishwasher such as circulation pump, drain pump, control/monitoring unit for carrying out various dishwashing programs, water softening system, etc., are housed in the base support.
- the front door of the household dishwasher according to the invention When the front door of the household dishwasher according to the invention is brought into its approximately vertical closed end position and closes the front loading opening of the washing compartment, the front door stands still approximately parallel to the base panel and preferably ends with its lower edge in a higher position than the lower edge of the base panel.
- the air outlet is arranged within a structural unit that preferably extends over the entire width of the front of the domestic dishwasher.
- the structural unit is preferably arranged behind a front plinth panel of the base support of the domestic dishwasher, viewed in the depth direction of the domestic dishwasher.
- the structural unit has a projection pointing forwards, which is arranged below the lower edge of the base panel and has the slot outlet there or forms it together with the lower edge of the base panel.
- the air outlet can be arranged within a wide design element with the same height, which can also be contrasting in color compared to a front panel in the lower area of the domestic dishwasher, for example as a black element compared to a white panel or a stainless steel decoration.
- a high degree of efficiency can be achieved if the air outlet can be controlled by at least one air-conveying element such as a fan wheel, ie can be charged with washing-room air from the washing-room of the washing-tub.
- the air conveying element is fluidically connected on the upstream side, preferably via an air duct, to at least one air outlet opening of the washing compartment or to at least one air outlet opening of the inner door of the front door.
- an exhaust air duct preferably leads from the air conveying element to the air outlet. If the air conveying element is activated, ie switched on, it sucks air from the washing chamber of the washing compartment via the upstream air duct to the air conveying element and blows it through the exhaust air duct on the downstream side to the air outlet.
- the air-conveying element can preferably be arranged in the lower area of the domestic dishwasher behind the air outlet in the depth direction.
- the fan wheel or the like can then preferably be approximately at the same height as the air outlet itself and in the base or base support Household dishwasher be arranged to save space.
- the air duct preferably starts within the top 50% of the height of the washing tank in one of its walls, thereby forming a long path for possible condensation.
- the air duct can be at least 40 centimeters long.
- the air outlet is preceded by an air duct, in particular several tens of centimeters long, coming from the washing container. Then a large part of the condensation can already take place in this long air duct.
- a blow-out duct extends between the at least one air conveying element and the air outlet, which, opposite the air duct, runs from the washing compartment, in particular from an air outlet opening in a wall, in particular a side wall, of the washing compartment or in an inner door wall of the front door, to the conveying element leads, is designed with a reduced cross-section.
- the flow speed of the washing room air sucked out of the washing chamber of the washing container by means of the conveying element is increased in the exhaust duct compared to the flow speed of the washing room air in the air duct in front of the conveying element, so that there is only too little condensation behind the conveying element in the vicinity of the air outlet and thus here the formation of water and the risk of water dripping from the air outlet is minimized.
- a favorable further development of the invention provides that the fan wheel or a similar conveying element can be controlled in a clocked manner, even over a period of several days. In this case, it can also be controllable via a moisture detection of the washing container.
- the domestic dishwasher can then also be used to store crockery, glasses, cutlery and the like, and this previously washed item can also be dried in phases again and again over a period of several days.
- the blowing out of the washing room air from the invention Household dishwashers via their slot outlet can therefore be carried out not only during the drying cycle of the wash cycle at least one dishwashing program to be carried out, but also, if necessary, later after the end of the drying cycle of the wash cycle during one or more post-drying cycles for post-drying the items to be washed stored in the wash cabinet.
- Such post-drying can be desired if the door is not opened by the user or an automatic door opening system immediately after the end of the drying cycle of the wash cycle of the respective dishwashing program to be carried out, but rather for a longer period of time, in particular for at least 6 hours to several days, e.g up to 96 hours, remains closed.
- This storage of items to be washed in the washing compartment of the washing compartment with the door closed after the end of the drying phase of a dishwashing program that has been carried out is referred to as the “storage function”.
- at least one air conveying element is activated from time to time for a specific period of time in order to cause the wash items to be dried in the wash cabinet by exchanging the air in the wash cabinet with ambient air, or to .to largely avoid rewetting of the items to be washed, and then deactivated again.
- 1 shows a schematic perspective view, diagonally from the front, of an advantageous embodiment of a domestic dishwasher designed according to the invention, here without external housing parts, with a view of a washing compartment inside the domestic dishwasher, and
- Fig. 2 is a schematic detail view of the air-guiding parts.
- the household appliance shown schematically in FIG. 1 is a household dishwasher 1 here.
- Other household appliances 1 with a drying function can also be considered in principle for an embodiment according to the invention.
- washing liquor is understood to mean water that is fresh or, in particular, water that is circulating during operation, with or without cleaning agent and/or rinse aid and/or drying agent.
- the washing liquor has passed through an ion exchanger for softening.
- the rinsing liquor can also contain more or less dirt from ongoing operations.
- the washing container 2 can have an at least essentially rectangular outline with a front side V facing a user in the operating position. This front side V can form part of a kitchen front made of kitchen furniture standing next to one another or, in the case of a stand-alone appliance, can also be unrelated to other furniture.
- the washing compartment 2 can be closed, in particular on this front side V, by a front door or flap. This is not shown here.
- the domestic dishwasher can be designed as a stand-alone device or as a so-called partially integrated or fully integrated device. In the latter case, the device body can also essentially end with the outer walls of the washing container 2 . A housing surrounding this on the outside can then be dispensed with.
- a base S for accommodating functional elements in particular, such as a pump for circulating the washing liquor, can be located in the lower area of the household dishwasher. As a so-called heating pump, this circulating pump can in particular also be heatable in order to bring the washing liquor to the temperature desired in the respective program step.
- An external heater that is independent of the circulating pump can be provided additionally or alternatively.
- the domestic dishwasher In the width direction B, the domestic dishwasher often extends 45, 50 or 60 centimeters. In the depth direction T from the front V to the rear, the extension is often also around 60 centimeters. The values are not mandatory. In particular, easily accessible installation at eye level or at worktop level is also possible. The lower edge of the household dishwasher 1 is then approximately 70 to 110 centimeters above the floor in the installed position.
- the domestic dishwasher 1 is provided with at least one air outlet 4 for blowing out, in particular, moist air from the washing compartment 2, in which crockery, glasses, cutlery and the like can be processed.
- This is arranged in the lower area, namely in the lower quarter, of the appliance height H and extends as a horizontal slot outlet over at least half the width B of the household dishwasher 1. This achieves good distribution of the air blown out, so that even with very humid air, which is to be conveyed to the outside, condensation and droplet formation in the area of the air outlet 4 can be largely avoided.
- the air outlet 4 is also possible to embody the air outlet 4 at the very bottom of the front side—as a kind of lower edge—of the domestic dishwasher 1 without drops running from there onto the kitchen floor or onto cupboards arranged underneath.
- the air outlet 4 - one or more parts - is at least 40 centimeters wide for this purpose.
- the air outlet is in the form of a flat slotted outlet, the height-to-width ratio of which can be less than 1:10, in particular less than 1:20. Then, with an air outlet 4 that is 40 centimeters wide, its height in the vertical direction H is less than about 2 centimeters.
- the air outlet 4 can be divided into several partial slits 4a, 4b, 4c aligned next to one another, as indicated in FIG. They don't all have to be the same length. It is important that a broad air outlet 4 is created overall, which enables a high air throughput in order to achieve a broad distribution of the moisture contained in the air.
- two to three partial slots 4a, 4b, 4c are provided side by side, each of which extends at a low height of about 8 to 15 centimeters in the direction of the width B of the domestic dishwasher 1.
- the air outlet 4 is arranged on the front V of the household dishwasher 1 facing a user, so that it blows out into the free air space in front of the household dishwasher 1 and the moist air does not disappear inside built-in furniture and could cause damage there .
- the structural unit 6 is therefore preferably arranged behind a front plinth panel 5 of the base support or plinth S of the domestic dishwasher 1, viewed in the depth direction. It has a forward-pointing projection 10 comprising the sections 10a, 10b, 10c, which is arranged below the lower edge of the base panel 5 and comprises the slot outlet 4 there has the partial slots 4a, 4b, 4c or forms together with the lower edge of the base panel 5.
- the structural unit 6 can be designed as a design element that runs continuously over its horizontal course with the same height extension, so that the air outlet 4 is then arranged within a design element that extends wide with a constant height.
- This can be made of metal, for example, or else as a plastic unit in its entirety, in particular as an injection-molded part in which the respective partial slots 4a, 4b, 4c are removed.
- the plinth panel 5 attached to the front can be omitted.
- the unit 6 itself can expediently be designed as a decorative plinth panel and include the slit-like air outlet 4 in an integrated manner.
- the design element can be contrasting in color to a front panel 5 in the lower area of the domestic dishwasher 1, for example black or chrome-plated or with a brushed stainless steel look. Of course, other designs are also possible.
- an air duct 3 which is several tens of centimeters long, coming from the washing compartment 2 , is arranged in front of the air outlet 4 .
- This air duct 3 begins high up in the washing compartment 2, in particular at least within the upper 50% of the height H of the washing compartment 2 in one of its walls.
- a start 9 in the upper 50%, in particular 30%, of the height of the washing container 2 is particularly favorable for the rising steam.
- the beginning 9 of the air duct 3 is provided in a side wall.
- the air duct 3 initially runs upwards in a kind of looping from its start 9 in the wall of the rinsing container 2 , so that any condensation water that may form can run back into the rinsing container 2 and does not remain in the air duct 3 .
- the air duct 3 extends into the base S towards at least one conveying element 7, such as a fan wheel.
- the air duct 3 is at least 40 centimeters long and can be about that bridge the entire height H of the domestic dishwasher 1 .
- the air duct 3 can be produced as a plastic unit, in particular of the same material.
- the fan wheel or similar conveying element 7 can be arranged in the base S of the domestic dishwasher, ie in its lower region, in the depth direction T behind the air outlet 4 and approximately at the same height as this.
- the conveyor element 7 is arranged at the lowest point of the domestic dishwasher 1 directly above its base.
- a blow-out duct 8 extends between the conveying element 7 and the slot-shaped air outlet 4 , which is designed with a reduced cross-section compared to the air duct 4 leading to the conveying element 7 .
- the cross section is reduced by at least 15%.
- the flow rate in the exhaust channel 8 is significantly higher than in the air channel 4, so that condensation and droplet formation hardly occur in this exhaust channel 8. This also contributes to obtaining as little condensation and liquid water as possible at the air outlet 4 . Together with the wide air outlet 4 and the resulting large distribution area, this goal is achieved particularly effectively and in an optimized manner.
- the low height of the air outlet 4 also results in a small cross section despite the large width.
- a high flow rate of the air is therefore also necessary here, so that the risk of condensation directly at the air outlet 4 is low.
- Appropriate guide plates or similar devices can be provided in the air outlet 4 in order to achieve an evenly and widely distributed air flow. These can be an integral part of the structural unit 6.
- the exhaust channel does not run obliquely downwards, but horizontally, so that any water that may occur does not reach the air outlet 4 and could drip out there.
- a household dishwasher 1 of this type can also be provided with a so-called storage function, which allows the items to be washed to remain in the washing compartment 2 with the front door closed after processing, without becoming wet again. This retention can last for several days without the dryness of the items to be washed deteriorating.
- the domestic dishwasher 1 then also serves as a Storage and drying cabinet from which the dishes can be removed fresh and dry.
- the conveying element 7 in particular can be controlled in a clocked manner.
- the conveying element 7 is regulated via a moisture sensor system, which supplies a measure of the current moisture content of items to be washed in the washing compartment.
- the conveyor element 7 is only switched on every now and then in order to repeatedly convey moist air out of the washing container 2 and thus to maintain the quality of the cleaning of the items to be washed, even over a longer period of time. Due to the only short effective running times, the energy requirement is low - as is the noise level from the at least one fan wheel or similar conveying element 7.
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011064088.5A CN114305282B (zh) | 2020-09-30 | 2020-09-30 | 家用洗碗机 |
| PCT/EP2021/075283 WO2022069222A1 (de) | 2020-09-30 | 2021-09-15 | Haushaltsgeschirrspülmaschine mit zumindest einem luftauslass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4221556A1 true EP4221556A1 (de) | 2023-08-09 |
Family
ID=77914341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21777716.8A Pending EP4221556A1 (de) | 2020-09-30 | 2021-09-15 | Haushaltsgeschirrspülmaschine mit zumindest einem luftauslass |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US12329345B2 (de) |
| EP (1) | EP4221556A1 (de) |
| CN (1) | CN114305282B (de) |
| WO (1) | WO2022069222A1 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200100644A1 (en) * | 2018-09-28 | 2020-04-02 | Haier Us Appliance Solutions, Inc. | Dishwasher appliance with a drying system |
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| CN107348928B (zh) * | 2017-06-23 | 2019-09-20 | 珠海格力电器股份有限公司 | 排风系统及包括其的洗碗机 |
| ES2781320T3 (es) | 2017-07-12 | 2020-09-01 | Miele & Cie | Máquina lavavajillas |
| CN109394112B (zh) * | 2017-08-18 | 2024-01-16 | 宁波方太厨具有限公司 | 一种清洗机 |
| JP2018140243A (ja) | 2018-06-19 | 2018-09-13 | パナソニックIpマネジメント株式会社 | 食器洗い機 |
| CN209360621U (zh) * | 2018-08-30 | 2019-09-10 | 中山市浩乐电器制造有限公司 | 用于洗碗机的排气干燥系统 |
| DE102019203038A1 (de) * | 2019-03-06 | 2020-09-10 | BSH Hausgeräte GmbH | Haushalts- Geschirrspülmaschine, Luftabzugs- und/oder Luftbehandlungsvorrichtung, diese umfassende Haushaltsgeräteanordnung, zugehörige Steuerlogik und Steuerverfahren zum Abführen von Prozessluft aus dem Spülbehälter der Haushalts- Geschirrspülmaschine |
-
2020
- 2020-09-30 CN CN202011064088.5A patent/CN114305282B/zh active Active
-
2021
- 2021-09-15 WO PCT/EP2021/075283 patent/WO2022069222A1/de not_active Ceased
- 2021-09-15 EP EP21777716.8A patent/EP4221556A1/de active Pending
- 2021-09-15 US US18/021,836 patent/US12329345B2/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200100644A1 (en) * | 2018-09-28 | 2020-04-02 | Haier Us Appliance Solutions, Inc. | Dishwasher appliance with a drying system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022069222A1 (de) | 2022-04-07 |
| CN114305282B (zh) | 2025-12-12 |
| US12329345B2 (en) | 2025-06-17 |
| CN114305282A (zh) | 2022-04-12 |
| US20230225582A1 (en) | 2023-07-20 |
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