EP4006225A1 - Appareil électroménager permettant de traiter des articles, comprenant un réservoir d'eau - Google Patents
Appareil électroménager permettant de traiter des articles, comprenant un réservoir d'eau Download PDFInfo
- Publication number
- EP4006225A1 EP4006225A1 EP21206195.6A EP21206195A EP4006225A1 EP 4006225 A1 EP4006225 A1 EP 4006225A1 EP 21206195 A EP21206195 A EP 21206195A EP 4006225 A1 EP4006225 A1 EP 4006225A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- household appliance
- water tank
- antechamber
- water
- treatment chamber
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 239000000463 material Substances 0.000 title description 11
- 239000013505 freshwater Substances 0.000 claims abstract description 34
- 239000003595 mist Substances 0.000 claims description 41
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 21
- 238000005406 washing Methods 0.000 claims description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000002351 wastewater Substances 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000007704 transition Effects 0.000 abstract description 3
- 230000004888 barrier function Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000003599 detergent Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004851 dishwashing Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000002979 fabric softener Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 239000004509 smoke generator Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/088—Liquid supply 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
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
-
- 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
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4223—Devices for water discharge, e.g. devices to prevent siphoning, non-return valves
-
- 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
- A47L15/4236—Arrangements to sterilize or disinfect dishes or washing liquids
- A47L15/424—Arrangements to sterilize or disinfect dishes or washing liquids by using ozone
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
-
- 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
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
- D06F35/001—Washing machines, apparatus, or methods not otherwise provided for using ozone
-
- 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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents
Definitions
- the invention relates to a household appliance for treating items to be treated, comprising a treatment chamber for receiving the items to be treated, a supply device for supplying water from a fresh water connection to the treatment chamber and a water tank, the supply device having an antechamber, a first supply line connecting the fresh water connection to the antechamber and at least one the antechamber has a transition line connecting the antechamber to the treatment chamber, with an inlet valve arrangement comprising at least one first valve being arranged in the first feed line and a first air section connected to the antechamber being arranged between the first valve and the antechamber, and the water tank being connected to the fresh water connection via a second feed line is connected, which second lead has a second valve.
- the document EP 2 850 241 B1 discloses a household appliance of the type defined above.
- This household appliance is designed in particular as a laundry care machine for caring for items of laundry, in particular as a washing machine or washer-dryer, and has a mist generator.
- This includes a water tank that is to be filled with fresh water from a fresh water connection and in which an ultrasonic transducer is arranged.
- This ultrasonic generator can be used to generate a cold mist in the water tank above the water level, which is fed via a mist channel designed as a circuit by means of an air flow generated by a blower to the items to be treated in a treatment chamber, specifically a suds container with a rotating drum inside.
- the mist duct also includes a reactive gas generator for generating a reactive gas, specifically ozone, which can be fed to the material to be treated via the mist duct together with the mist.
- the fog channel also contains a reactive gas filter, with which the reactive gas can be removed from the air flow in order to prevent its uncontrolled spread.
- the document EP 2 855 754 B1 discloses a water-carrying household appliance which has a treatment gas generator and a flushing arrangement as well as a mist generator.
- a mist duct for introducing treatment gas and mist into the treatment chamber with the items to be treated communicates with the flushing arrangement, which is connected to the treatment chamber via a number of water reservoirs or siphons.
- the document EP 2 858 545 B1 discloses a water-bearing household appliance which has an ozone generator and a mist generator and an ozone filter, which are arranged in a mist duct which forms a substantially closed circuit with the treatment chamber and in which also a fan for driving an air flow which the ozone and the mist leading to the treatment chamber.
- the fan is operated so that the airflow flows along a main direction through the mist duct.
- the blower is operated in such a way that the air stream flows through the mist channel in the opposite direction to the main direction. In this way, ozone gets from the treatment chamber in the fog channel to the ozone filter, where it is broken down, in particular by reacting with activated carbon.
- the document EP 2 598 682 B1 discloses a home appliance having an ozone generator.
- This ozone generator is supplied with air flow mixed with water vapor, and in the ozone generator ozone is generated in this air flow by the action of ultraviolet light from a corresponding light source.
- the air flow thus mixed with ozone is then fed to a treatment chamber with the material to be treated, in order to treat the material to be treated with the ozone.
- the DIN EN 61770/A11:2018 standard requires a water-bearing household appliance that is connected to a fresh water connection to a supply network for water for human consumption that any material in the household appliance that comes into contact with such water does not pose a health risk for such water nor cause any change in quality, appearance, smell or taste. Therefore, such household appliance must be secured against back flow of water into the fresh water connection and contact of fresh water introduced into the household appliance with any material or agent which poses a potential risk of degrading fresh water intended for human consumption must only downstream be adequately secured against reflux occur.
- An air gap can be used to protect against backflow; this is a device which can be built into a pipe or hose system and in which the liquid flowing through it flows freely from one pipe socket to another for a short distance. Information on the design of such an air gap can be found in the standard mentioned.
- a household appliance is understood to mean a device that is suitable and intended for use when running a private household to bring about the desired material success.
- a water-carrying household appliance is considered in particular, ie a household appliance in which water plays a role in achieving the desired result, with this water having to be taken in particular from a water supply network for human consumption.
- a household appliance can in particular be a dishwasher for washing dishes and a laundry care machine for caring for, in particular washing, items of laundry.
- a household appliance according to the preamble of the corresponding independent patent claim is specified according to the invention, which additionally has the features of the characterizing part of the independent patent claim.
- a household appliance for treating items to be treated comprising a treatment chamber for receiving the items to be treated, a supply device for supplying water from a fresh water connection to the treatment chamber and a water tank, the supply device having an antechamber, a fresh water connection with the first supply line connecting the antechamber and at least one transition line connecting the antechamber to the treatment chamber, with an inlet valve arrangement comprising at least one first valve being arranged in the first supply line and a first air section connected to the antechamber being arranged between the first valve and the antechamber, and the water tank is connected to the fresh water connection via a second supply line, which second supply line has a second valve, in which household appliance also in the second supply line between the second valve and the water tank a second air path is arranged, which is connected to the antechamber, and the second supply line opens below a predetermined water level in the water tank.
- the water tank is connected to the fresh water connection in accordance with the applicable regulations for supplying fresh water from a corresponding supply network, and on the other hand the air space above the water level in the water tank is protected against a connection to other air-conducting areas of the household appliance, in particular the antechamber. secured.
- This protection against a backflow of water from the water tank in the form of the second air gap is combined with the first air gap, which is a safeguard against backflow from the antechamber, in such a way that both air gaps are connected to the interior of the antechamber and thus to the standing inside the treatment chamber.
- the second air path keeps the system of water tank and treatment chamber closed. The air pressure is always the same on both air gaps. This means that both air gaps respond equally in the event of sucking back.
- the invention can be applied to any type of water-bearing household appliance, especially since the outlay required to use the invention is very low.
- a laundry care machine such as a washing machine and a washer-dryer and a dishwasher for cleaning dishes come into consideration as such a household appliance.
- the water tank can be provided for any purpose in the household appliance.
- the function can be the formation of a ballast weight, which is used to dampen vibrations in certain operating states of the household appliance, such as a dewatering process by spinning or centrifuging in a washing machine.
- the water tank can also be used to store water for a special treatment process, for example for treating the items to be treated using steam or mist, which a corresponding generator generates from the stored water.
- water stored in this way can be used to dilute or dissolve special agents such as detergents, dishwashing liquids and water softeners.
- the water level corresponds to a minimum filling of the water tank that is predetermined for use of the water tank. Accordingly, when using the household appliance, the filling of the water tank must be so high that the actual water level is the same as or higher than the water level corresponding to the minimum filling. This ensures that the blocking of the Air space in the water tank is present in every conceivable operating state of the household appliance.
- the water tank is connected via a drain line and a drain valve to a pump-out line, which is connected to a waste water connection. This means that any water remaining in the water tank can be disposed of in the waste water connection when the household appliance is no longer in use.
- the antechamber is covered on an upper side by a cover, and the second air path is attached to the cover and has a connection to the antechamber that penetrates the cover.
- the second air section is a bulge in the cover, to which two first pipe sockets are connected, to which the second supply line is connected.
- the second air path, the first pipe sockets and the cover are formed in one piece with even more preference. In this way, the second air path is largely integrated into the structure of an existing component of the household appliance, and can therefore be produced easily and inexpensively and is integrated robustly into the structure of the household appliance.
- first valve arrangement and the second valve are spatially connected to one another, in particular arranged and fastened together on the antechamber. In this way, too, simple and cost-effective production is possible and robust integration into the structure of the household appliance is achieved.
- the water tank and the treatment chamber are connected to form a circuit via a process air duct.
- this cycle is essentially self-contained.
- the process air duct has a blower, by means of which an air flow flowing in a main direction can be formed in the circuit. It is also preferable that the fan is arranged upstream of the water tank with respect to the main direction.
- the treatment chamber can be loaded with the items to be treated therein by the blower driving the steam or mist generated from the water present in the water tank through the process air duct along the main direction into the treatment chamber.
- the blower can be operated in such a way that the air flow in the process air duct flows in a direction opposite to the main direction and in this way After the treatment has been completed, the mist remaining in the treatment chamber is conveyed back into the process air duct for disposal.
- a reactive gas generator for generating a reactive gas with respect to the main direction downstream of the blower and upstream of the treatment chamber and a reactive gas filter for eliminating the reactive gas with respect to the main direction upstream of the blower and downstream of the treatment chamber are arranged in the circuit.
- the arrangement of the reactive gas generator downstream of the water tank causes the reactive gas to be generated in an air stream enriched with the steam or mist, it being possible for the reactive gas to be generated by a reaction with the water in the steam or mist, or the reactive gas to react with the steam or Fog connects, for example by diffusing the reactive gas into the droplets of the fog.
- the treatment can also be provided in such a way that a reaction takes place on or in the material to be treated, which requires the simultaneous presence of water and reactive gas, with the steam or mist ensuring the presence of an effective amount of water on or in the material to be treated.
- the reactive gas generator is designed to generate ozone as the reactive gas
- the reactive gas filter is an activated carbon filter.
- the water tank belongs to a fog generator, by means of which a fog can be generated, which can be conveyed through the process air duct into the treatment chamber.
- the fog generator is also preferably set up to produce a cold fog.
- an ultrasonic generator set up to generate the cold mist is arranged in the water tank.
- the cold fog is a dispersion of the finest water droplets in the air and is only created by Effect of the ultrasound generated by the ultrasonic generator on the water in the water tank without a significant increase in the temperature of the water or the mist.
- the smoke generator therefore does not require a higher temperature than the surroundings of the household appliance to form the smoke, which increases its operational reliability.
- the corresponding household appliance is set up as a laundry care machine for treating items of laundry as items to be treated.
- the household appliance is preferably designed for washing the items of laundry.
- a rotatable and perforated drum for receiving the laundry items is arranged in the treatment chamber.
- the antechamber has a flushing-in arrangement, in particular a flushing-in bowl, in which a treatment agent, in particular laundry care agent such as detergent and fabric softener, can be added to the fresh water flowing through to the treatment chamber.
- FIG 1 shows a schematic first embodiment of the household appliance 1 according to the invention, designed here as a washing machine 1, for treating items 2 to be treated, here items of laundry 2.
- the household appliance 1 comprises a treatment chamber 3 for receiving the items to be treated 2, the treatment chamber 3 here designed as a swingingly suspended tub 3, in which a rotatable and perforated drum 4 is arranged, which receives the material to be treated 2 and moves it by rotating it during washing or other types of treatment, for which purpose the drivers 5 are also useful.
- a supply device 7 can supply water to the treatment chamber 3 from a fresh water connection 6 connected to a network for supplying water intended for human consumption (drinking water).
- the feed device 7 has an antechamber 8 with a cover 9 and a first feed line 10 connecting the fresh water connection 6 to the antechamber 8, wherein in the first feed line 10 there is an inlet valve arrangement comprising at least one first valve 11 and between the first valve 11 and the antechamber 8 a first air path 12 connected to the antechamber 8 are arranged.
- the antechamber 8 is a dispensing chamber 8 with a figure 1
- a treatment agent in this case in particular a detergent or fabric softener.
- the one first valve 11 is to be seen here as a representative for a plurality or multiplicity of valves which are used for sequentially flushing in different quantities of treatment agents which can be introduced into different chamber segments of the flushing arrangement.
- At least one transfer line 13 connecting the antechamber 8 to the treatment chamber 3 is used to supply the water to the treatment chamber 3.
- Several transfer lines 13 can be used to conduct water that may have been mixed with treatment agent to different points in the treatment chamber 3, in particular to make the wetting of the material to be treated 2 more uniform.
- a pump-out line 14 together with a drain pump 15 arranged therein serves to discharge water, washing lye or rinsing lye from the treatment chamber 3 after the end of a treatment and to dispose of it through a waste water connection 16 into a connected network for the disposal of waste water.
- the household appliance 1 also has a mist generator 17 for generating mist and feeding the mist to the treatment chamber 3 .
- This mist generator 17 has a water tank 18 and is set up to generate a cold mist, in that an ultrasonic generator 19 designed to generate the cold mist is arranged below a water level 20 in the water tank 18 .
- the cold mist is a dispersion of the finest water droplets in the air and is only created by the action of the ultrasound generated by the ultrasonic generator 19 on the water in the water tank 18, without the temperature of the water or the mist increasing significantly.
- the water tank 18 is connected to the fresh water connection 6 via a second supply line 21, which second supply line 21 has a second valve 22, and in the second supply line 21 between the second valve 22 and the water tank 18 a second Air gap 23 is arranged, which is connected to the antechamber 8.
- the first valve arrangement and the second valve 22 are spatially connected to one another, in particular forming a unitary valve arrangement which includes all the first valves 11 and the second valve 22 .
- the water level 20 corresponds to a minimum filling of the water tank 18 specified for the use of the water tank 18.
- the filling of the water tank 18 must be so high that the actual water level is the same as or higher than the water level corresponding to the minimum filling 20 is. This ensures that the air space in the water tank 18 is blocked in every conceivable operating state of the household appliance 1 .
- a drain pipe 24 and a drain valve 25 are provided to allow water remaining in the water tank 18 to flow into the drain pipe 14 after treatment.
- the fog generator 17 with the water tank 18 and the treatment chamber 3 are connected via a process air duct 26 to form a circuit, the circuit being essentially self-contained.
- the process air duct 26 also has a blower 27, through which an air flow flowing in a main direction 28 can be formed in the circuit.
- the blower 27 is arranged upstream of the mist generator 17 with respect to the main direction 28 . This reduces the impingement of the mist on the fan 26 . If necessary, the blower can also be set up to operate the air flow in a direction opposite to the main direction 28 in order to suck fog backwards out of the treatment chamber 3 as it were.
- a reactive gas generator 29 for generating a reactive gas with respect to the main direction 28 downstream of the blower 27 and upstream of the treatment chamber 3 and a reactive gas filter 30 for eliminating the reactive gas with respect to the main direction 28 upstream of the blower 27 and downstream of the treatment chamber 3 are arranged in the circuit .
- the reactive gas generator 29 is designed to generate ozone as the reactive gas
- the reactive gas filter 30 is an activated carbon filter 30 on which the ozone is broken down if necessary.
- Ozone is a very effective oxidizing agent, which, for example, breaks down stubborn dirt and an effective Allows deodorizing and disinfecting laundry items 2 separately from or in addition to further treatment processes such as washing and rinsing.
- FIG figure 2 shows a schematic view of a second air path 23 in the household appliance 1 according to FIG figure 1 .
- the antechamber 8 that is not visible is covered on its upper side by the cover 9, and the second air path 23 is attached to the cover 9 and has a connection 31 to the antechamber 8 that penetrates the cover 9.
- the second air gap 23 is thus a bulge in the cover 9, to which two first pipe sockets 32 are connected, to which the second supply line 21 is connected.
- the second air path 23, the first pipe socket 32 and the cover 9 are formed in one piece, in particular by injection molding.
- the adjacent ends of the two first pipe sockets 32 are spaced apart by a certain distance, with the corresponding distance being specified in accordance with the standard DIN EN 61770/A11:2018.
- fresh water flows through the air gap 23 from left to right.
- the fresh water exits the first pipe socket 32 on the left via the connection 31 and flies freely through the air for a short distance, only to then enter the first pipe socket 32 on the right and flow to the water tank 18 .
- figure 3 shows a schematic view of a vertical section through the water tank 18 in the household appliance according to FIG figure 1 .
- the second supply line 21 is connected to a second pipe socket 33 which lies below the water level 20 positioned as intended during operation of the fog generator 17 and thus protrudes into the area of the water tank 18 which is filled with water for operation.
- This avoids air enriched with mist and/or ozone from the process air duct 26, to which according to figure 1 the area of the water tank 18 that is not filled with water can enter the second air gap 23 and the antechamber 8 .
- a barrier is thus formed which separates the process air duct 26 from the antechamber 8 .
- this barrier serves in particular to prevent an uncontrolled transfer of ozone from the process air duct 26 and the air space in the water tank 18 into the antechamber 8.
- Ozone has on the one hand an odor that is usually perceived as unpleasant and on the other hand it can attack mucous membranes in correspondingly high concentrations.
- the barrier makes a significant contribution to preventing ozone from escaping from the household appliance 1 in an uncontrolled manner.
- the water tank 18 is connected to the fresh water connection 6 in accordance with the applicable regulations for the supply of fresh water from a corresponding supply network, and on the other hand the air space above the water level 20 in the water tank 18 is protected against a connection to other air-conducting areas of the household appliance 1 , In particular the antechamber 8 secured.
- This protection against a backflow of water from the water tank 18 in the form of the second air gap 23 is combined with the first air gap 12, which represents a safeguard against backflow from the antechamber 8, in such a way that both air gaps 12 and 23 in connection with the Inside the antechamber 8 and thus with the inside of the treatment chamber 3 are.
- the second air gap 23 maintains a closed system of the water tank 18 and treatment chamber 3.
- the air pressure on both air gaps 12 and 23 is always the same. This means that both air gaps 12 and 23 respond equally in the event of sucking back.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Water Supply & Treatment (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020214963.1A DE102020214963A1 (de) | 2020-11-27 | 2020-11-27 | Haushaltsgerät zum behandeln von behandlungsgut, umfassend einen wassertank |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4006225A1 true EP4006225A1 (fr) | 2022-06-01 |
Family
ID=78516617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21206195.6A Pending EP4006225A1 (fr) | 2020-11-27 | 2021-11-03 | Appareil électroménager permettant de traiter des articles, comprenant un réservoir d'eau |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4006225A1 (fr) |
CN (1) | CN114561782A (fr) |
DE (1) | DE102020214963A1 (fr) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4446731A1 (de) * | 1994-12-24 | 1996-06-27 | Miele & Cie | Haushaltgerät, insbesondere programmgesteuerte Geschirrspülmaschine mit einer Wasserenthärtungseinrichtung |
DE102007023020B3 (de) * | 2007-05-15 | 2008-05-15 | Miele & Cie. Kg | Frontbeschickbare Wäschebehandlungsmaschine |
EP2598682B1 (fr) | 2010-07-29 | 2015-09-30 | BSH Hausgeräte GmbH | Appareil ménager à générateur d'ozone |
EP2855754B1 (fr) | 2012-05-31 | 2016-03-23 | BSH Hausgeräte GmbH | Appareil ménager à circulation d'eau, pourvu d'un générateur de gaz de traitement et d'un dispositif d'introduction de liquide |
EP2850241B1 (fr) | 2012-05-14 | 2016-07-13 | BSH Hausgeräte GmbH | Appareil ménager à circulation d'eau pourvu d'un générateur de brouillard |
EP2858545B1 (fr) | 2012-06-12 | 2016-08-10 | BSH Hausgeräte GmbH | Appareil électroménager comprenant un générateur, en particulier un générateur d'ozone, et un dispositif de filtration |
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2020
- 2020-11-27 DE DE102020214963.1A patent/DE102020214963A1/de active Pending
-
2021
- 2021-11-03 EP EP21206195.6A patent/EP4006225A1/fr active Pending
- 2021-11-25 CN CN202111409261.5A patent/CN114561782A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4446731A1 (de) * | 1994-12-24 | 1996-06-27 | Miele & Cie | Haushaltgerät, insbesondere programmgesteuerte Geschirrspülmaschine mit einer Wasserenthärtungseinrichtung |
DE102007023020B3 (de) * | 2007-05-15 | 2008-05-15 | Miele & Cie. Kg | Frontbeschickbare Wäschebehandlungsmaschine |
EP2598682B1 (fr) | 2010-07-29 | 2015-09-30 | BSH Hausgeräte GmbH | Appareil ménager à générateur d'ozone |
EP2850241B1 (fr) | 2012-05-14 | 2016-07-13 | BSH Hausgeräte GmbH | Appareil ménager à circulation d'eau pourvu d'un générateur de brouillard |
EP2855754B1 (fr) | 2012-05-31 | 2016-03-23 | BSH Hausgeräte GmbH | Appareil ménager à circulation d'eau, pourvu d'un générateur de gaz de traitement et d'un dispositif d'introduction de liquide |
EP2858545B1 (fr) | 2012-06-12 | 2016-08-10 | BSH Hausgeräte GmbH | Appareil électroménager comprenant un générateur, en particulier un générateur d'ozone, et un dispositif de filtration |
Also Published As
Publication number | Publication date |
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DE102020214963A1 (de) | 2022-06-02 |
CN114561782A (zh) | 2022-05-31 |
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