EP3468441A1 - Haushalts-geschirrspülmaschine mit einem dosiersystem für feststoff-zugabemittel und entsprechendes verfahren - Google Patents
Haushalts-geschirrspülmaschine mit einem dosiersystem für feststoff-zugabemittel und entsprechendes verfahrenInfo
- Publication number
- EP3468441A1 EP3468441A1 EP17724330.0A EP17724330A EP3468441A1 EP 3468441 A1 EP3468441 A1 EP 3468441A1 EP 17724330 A EP17724330 A EP 17724330A EP 3468441 A1 EP3468441 A1 EP 3468441A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- storage container
- dishwasher
- reservoir
- dosing
- closure
- 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
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
- A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
- A47L15/4463—Multi-dose dispensing 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
- A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
- A47L15/4472—Blister packaging or refill cartridges
Definitions
- the present invention relates to a domestic dishwasher with a washing compartment for washing dishes and with a dosing system.
- a device for repeated, self-dosing doses of a powdered detergent in water-bearing cleaning machines esp. Domestic dishwashers and household washing machines known.
- a detergent container with an outlet opening above a dosing and adding device is arranged, which is equipped with at least one recess for receiving individual doses of a powdered detergent, which is discharged into a treatment container of the water-bearing cleaning machine.
- the interior of the detergent container and a guide of the dosing and adding device are constantly acted upon by a compressed air flow generated in a compressed air generator, wherein the compressed air flow in the addition position also acts on the interior of the recess.
- the invention has for its object to provide a domestic dishwasher with a metering system, which allows reliable automatic addition of solids-adding agent from a reservoir into a washing compartment of a household dishwasher for several successive rinses.
- the domestic dishwasher has a washing compartment for rinsing items to be washed and a dosing system.
- the metering system comprises a storage container for storing a solids-adding agent, a metering device for dispensing the solids-adding agent from the storage container into the washing compartment, and a closure device for airtight sealing of the storage container.
- a pump for evacuating air from the reservoir is provided.
- solids-adding agent is to be understood as meaning all solid, that is to say non-liquid or gaseous, additives which contain any ingredients which can be used for dishwashing, such as, for example, adding agents in powder form or as granules, as tablets, as pellets
- the term is also not limited to the actual cleaning agent and is intended to encompass agents comprising ingredients for use in rinse cycles, water softening or conditioning, and the like
- It may be refillable, but is preferably designed to be interchangeable, for example in the form of a cartridge
- the reservoir may be designed to receive a bed, in particular loose bed, of additive tablets or powder, so that the additive is random in the storage room
- the reservoir can also be such be configured so that formant-shaped bodies are stored in a predetermined geometric arrangement.
- the pump according to the invention makes it possible to evacuate air from the reservoir and to generate negative pressure in the reservoir in this way. With the air, the moisture is sucked out of the reservoir at the same time, so that in this way it is ensured that the solids-adding agent is not dissolved by moisture, glued, clumped or the like.
- the pump may be, for example, a circulation, hose, piston or vibration pump. If the pump is not active, it must be prevented that air will flow back into the reservoir.
- the pump itself is already designed so that this is guaranteed.
- a check valve may be required.
- the pump In order to safely vaporize even moisture already penetrated into the solids-adding agent and to dry the solids-adding agent thereby, it is advantageous to operate the pump such that the air pressure in the reservoir after evacuation of the air is less than 500 mbar, preferably even less than 200 mbar, is. At a pressure of 200 mbar, the boiling point of water is about 60 ° C, a temperature that is usually reached in the rinse cycle. This ensures that water in the reservoir is exclusively gaseous and can thus be pumped out by the pump. A low air pressure in the reservoir also helps to reduce unwanted heat transfer from the purge bin to the feed means.
- the evacuated reservoir Before evacuating solid feed additive, the evacuated reservoir must be re-aerated. For this purpose, air from the interior of the washing can be used. However, this is usually damp, so that unwanted moisture can penetrate into the reservoir. Accordingly, according to one embodiment of the invention, a vent valve for venting the reservoir is provided, so that the reservoir can be specifically ventilated via the vent valve with outside air (ambient air). Compared to the air in the interior of the washing compartment is outside air much drier. To prevent the ingress of dirt particles in the context of ventilation, a filter may be arranged in the connection between the reservoir and the ambient air of the dishwasher.
- the storage container comprises the closure device, which in the case of exchangeable storage containers has the advantage that the closure device must be designed only for the maximum possible number of doses with a filled storage container, and not on the life of the household Dishwasher.
- the closure device can therefore be designed significantly cheaper.
- the closure device comprises a closure means and a sealing seat, which are arranged and configured such that negative pressure in the reservoir presses or pulls the closure means into the sealing seat.
- the closure means must be movable in the direction of the sealing seat, so that the force acting on the closure means by the air pressure can force the closure means into the sealing seat.
- the storage container may also comprise the metering device, so that when dispensers provided for replacement and the metering device must be designed only on the maximum possible number of metering operations with a filled reservoir and not on the life of the household dishwasher. The metering device can therefore be designed significantly cheaper.
- the reservoir can also be releasably connected to the metering device.
- at least one empty storage container can be replaced by a full storage container.
- the metering device is integrated in such an embodiment in the household dishwasher and only the reservoir is provided for change by the consumer.
- sealing means are preferably provided which ensure an airtight connection between the reservoir and metering device.
- the storage container has a dispensing opening for dispensing the solids-adding agent from the storage container and a separate air opening for evacuating and / or venting the reservoir.
- This separation of discharge port and air port facilitates the prevention of the ingress of additive into the connection between the air port and the pump. If, in addition to the connection, a connection of the air opening with a ventilation valve is also provided, the separation of the dispensing opening and the air opening can also more easily prevent the penetration of adding agent into this connection.
- a further embodiment of the invention provides that at least one of the openings of the storage container is closed by a disposable closure prior to the first connection to the metering device.
- An uninjured one-off closure signals the consumer very quickly and safely a brand new condition of the reservoir.
- a disposable closure can be realized, for example, with the aid of a film, a thin spot in the material of the storage container or a plug.
- the reservoir can already be supplied with negative pressure in the delivery state, which is then held securely by the disposable closure.
- the disposable closure can be opened automatically by the metering device when first connecting the storage container with the metering device. There is thus no manual opening by the consumer necessary and also the risk of incorrect operation is minimized.
- Such an automatic opening can be realized, for example, with the aid of a spike, a cutting edge or the like.
- the metering device can also comprise an output lock, by means of which the metering device can be closed relative to the washing compartment and through which the solids-adding agent can be dispensed into the washing compartment.
- an output lock by means of which the metering device can be closed relative to the washing compartment and through which the solids-adding agent can be dispensed into the washing compartment.
- the dispensing lock has a metering chamber which has a conical discharge area arranged in the bottom of the metering chamber. Due to the conical design of the discharge area, the solids-adding agents are automatically conveyed by their weight force in the direction of the washing compartment.
- the dispensing lock comprises a lifting piston for opening and closing the conical discharge area of the metering chamber.
- the reciprocating piston is adapted to meter a respective predetermined amount of the solid-adding agent in the washing compartment.
- a linear drive and a lever arm coupled between the linear drive and the reciprocating piston are provided, wherein the linear drive is adapted to actuate the reciprocating piston for opening and closing the conical discharge area.
- a translation between the linear drive and the lever arm is provided.
- the lever arm in particular has two arms of different lengths. Between the shorter arm of the lever arm and the linear drive, the translation is arranged. For coupling between the translation and the lever arm, the shorter arm, for example, a slot.
- the evacuated reservoir is first vented, then the solid-adding agent is discharged from the reservoir, the reservoir again hermetically sealed and finally evacuated the reservoir again.
- the delivery of the adding agent can be effected either directly into the washing compartment of the household dishwasher or, alternatively, into an output lock. In the latter case, the reservoir can already be evacuated again before the solids-adding agent is finally discharged from the output lock in the washing compartment.
- Fig. 1 is a schematic perspective view of an embodiment of a
- Fig. 2 is a schematic representation of an embodiment of a metering system according to the invention.
- FIG. 3 shows an example of a sequence of method steps for metering a solids-adding agent into a domestic dishwasher according to the invention.
- FIGS. 4 to 7 show various schematic representations of an embodiment of an output lock of the metering system according to the invention.
- FIG. 1 shows a schematic perspective view of a household dishwasher 1.
- the dishwasher 1 has a receiving area in the form of a washing container 2, which is closed by a door 3, in particular waterproof.
- a sealing device can be provided between the door 3 and the washing container 2.
- the washing container 2 is preferably cuboid.
- the washing container 2 may be made of a steel sheet.
- the washing container 2 can be made at least in sections of a plastic material.
- the washing container 2 and the door 3 can form a washing compartment 4 for washing dishes.
- the washing container 2 can be arranged inside a housing of the dishwasher 1.
- the door 3 is shown in Fig. 1 in its open position. By pivoting about a provided at a lower end of the door 3 pivot axis 5, the door 3 can be closed or opened.
- the washing compartment 2 has a wall 6 with a bottom 7, a ceiling 8 arranged opposite the base 7, a rear wall 9 arranged opposite the door 3 and two side walls 10, 11 arranged opposite one another.
- the bottom 7, the ceiling 8, the rear wall 9 and the side walls 10, 1 1 can be made for example of a stainless steel sheet.
- the bottom 7 may be made of a plastic material.
- the dishwasher 1 further comprises at least one Spülgutability 12 to 14.
- a plurality of Spülgutagen 12 to 14 may be provided, which may include a lower basket 12, a top basket 13 and / or a cutlery drawer 14.
- the plurality of Spülgutagen 12 to 14 are preferably arranged one above the other in the washing compartment 2.
- Each Spülgutability 12 to 14 is optional in the washing 2 in or out of this displaced.
- each Spülgutage 12 to 14 hineinschiebbar in an insertion direction E in the receiving area 2 and opposite to the insertion direction E in a pull-out direction A from the washing container 2 can be pulled out.
- the dishwasher 1 also has a dosing system 100.
- the metering system 100 is arranged in the example of FIG. 1 on the door 3, so that, when the door 3 is closed, it is aligned with the washing compartment 4. This advantageously allows that the dosing system 100 can meter solids-adding agent into the washing compartment 4. The solids-adding agent is then dissolved by the washing liquor located in the washing compartment 4. Notwithstanding the illustration in FIG. 1, further arrangements of the dosing system 100, such as. B. on the wall 6 of the washing container 2 or on one of Spülgutagen 12 to 14, possible.
- FIG. 2 shows an embodiment of a metering system 100 according to the invention.
- a supply container 101 contains solids-adding agent 102, which in the illustrated embodiment is in the form of tablet-shaped additive tablets 103.
- the solids-adding agent 102 may also be in other solid form, such as e.g. in powder form or as granules, as pellets, as capsules or in block form.
- the adding agent shaped bodies 103 are stored in a predetermined geometric arrangement. However, it is of course also possible embodiments in which the solid detergent is added in the form of a bed in the reservoir 101.
- this dosing device 104 comprises, on the one hand, a portioning unit 105, in the form of a wedge, which can be inserted or swiveled in above the lowermost addition agent shaped body 103 in the direction of gravity and, in the position shown, prevents subsequent addition of further shaped agent 103 due to gravity.
- the direction of gravity is indicated by an arrow G in FIG.
- the dosing device 104 also includes an output unit
- a closure device 1 10 serves for airtight sealing of the storage container 101 and has for this purpose a closure means 1 1 1 and a sealing seat 1 12.
- the closure means 1 1 1 is formed by the closure flap 107.
- the closure flap 107 accordingly assumes in the embodiment shown a double function as part of the metering device 104 on the one hand and as part of the closure device 1 10 on the other hand.
- the reservoir 101 is configured in the illustrated embodiment is not refillable, but in the form of a cartridge, which is exchanged after the complete consumption of the solids-adding agent 102 as a whole.
- the closure device 1 10 in the form of the closure flap 107 is in the embodiment shown part of the reservoir 101, which has the advantage that the closure device 1 10 is exchanged together with the reservoir 101 and therefore only to the maximum possible with a filled reservoir 101 number must be designed for dosing and not on the life of the dishwasher.
- the metering device 104 is an integral part of the reservoir 101.
- the metering device 104 is automatically exchanged and consequently does not have to be designed for the entire lifetime of the household dishwasher 1.
- the metering device 104 is firmly integrated into the household dishwasher, but it is still possible to replace an empty storage container 101 by a full reservoir 101.
- the reservoir 101 may be detachably connected to the metering device 104.
- sealing means are provided which ensure an airtight connection between the reservoir 101 and metering device 104.
- the specific embodiments of the storage container 101, the metering device 104 and the closure device 110 can be varied in many ways.
- a pump 1 13 which is connected via a pump line 1 14 to the reservoir 101, air can be evacuated from the reservoir 101, so that in the reservoir 101, a negative pressure.
- pump 1 13 are basically all pump types which are suitable to promote gaseous media.
- a valve 1 15 is provided in order to prevent a backflow of air into the reservoir 101. But it could also be used a pump 1 13, in which a backflow of air into the reservoir 101 is already excluded by design or in which for this purpose a check valve in the pump 1 13 is integrated.
- a particularly effective protection against moisture in the reservoir 101 is achieved when the pump 1 13 evacuated the reservoir 101 so far that the air pressure in the reservoir 101 is less than 500 mbar, preferably even less than 200 mbar. At such low air pressures, it is then also possible to evaporate moisture that has already penetrated into the solids-adding agent 102 and, moreover, a low air pressure in the reservoir 101 also reduces the undesired heat transfer from the washing container 2 into the solids-adding agent 102.
- a vent valve 1 16 is provided, which on the one hand with the reservoir 101 and on the other hand via a filter 1 17 with the outside air or ambient air is connected.
- the ventilation with outside air has the advantage that this air is much drier and therefore moisture is not introduced into the reservoir 101 via the ventilation process.
- the closure means 1 1 1 in the form of the closure flap 107 and arranged in the area around the discharge opening 108 sealing seat 1 12 are configured in the illustrated embodiment such that the negative pressure in the reservoir 101, the closure means 1 1 1 presses in the sealing seat 1 12, which is a ensures high sealing effect.
- the illustrated in Figure 2 embodiment of the reservoir 101 has a separate from the discharge opening 108 air port 1 18, which is used in the illustrated embodiment both for evacuation and for venting the reservoir 101. In this way, penetration of admixture into the Pump line between the air opening 1 18 and pump 1 13 and in the connecting line between the air opening 1 18 and vent valve 1 16 safely avoided.
- the dosing device 104 shown has, in addition to the portioning unit 105 and the output unit 106 in the form of the closure flap 107, also an output sluice 1 19.
- This dispensing lock 1 19 comprises a metering chamber 120, which adjoins the closing flap 107 in the direction of gravity G, and a controllable dispensing flap 121. With the aid of this output flap 121, a connection of the metering chamber 120 can be closed or opened with the washing compartment 4.
- the output flap 121 thus offers the possibility of closing the metering device 104 relative to the washing chamber 4 or of dispensing a portion of solids-adding agent 102 located in the metering chamber 120 into the washing chamber 4.
- Step S1 Inserting the brand new, not yet used and thus completely filled reservoir 101 into a receiving area 122 provided therefor, e.g. in the door 3, the household dishwasher 1.
- a disposable closure e.g. a film which closes the air opening 1 18, when inserting the reservoir 101 in the household dishwasher 1 automatically, e.g. with the help of a mandrel, which is provided at the end of the pumping line 1 14, opened in such a way that the disposable closure the pumping line 1 14 thereafter surrounds fluid-tight.
- Step S2 Evacuation of the reservoir 101 by means of the pump 1 13.
- the valve 1 15 must be opened in advance.
- Step S3 Turning off the pump 1 13 after reaching the desired negative pressure in the reservoir 101st In the embodiment shown in Figure 2 then the valve 1 15 is then closed again. In this state, the dosing system 100 remains until the beginning of the first dosing process as part of a wash program.
- Step S4 A sequence control of the domestic dishwasher 1, predetermines a dosing time for the solid addition agent 102 stored in the storage container 101 for a selected rinse program. A few seconds before reaching this point in time, the venting valve 1 16 is opened and thereby the reservoir 101 is vented. The filter 1 17 prevents the ingress of dirt particles from the ambient air into the reservoir 101.
- Step S5 Opening the closure flap 107 leads to the dispensing of a portion of the solids-adding agent 102, in the example shown, an addition agent-shaped body 103, from the reservoir 101 into the metering chamber 120 of the output lock 1 19.
- the one or more addition agent molding 103 which in Gravity direction below the portioning unit 105 is located after the opening of the closure flap 107 gravity fall into the dosing 120.
- the output flap 121 of the metering chamber 121 is advantageously still closed at this time.
- Step S6 evacuate the reservoir 101 by means of the pump 1 13.
- the valve 1 15 must be opened again before.
- Step S7 Shut down the pump 1 13 after reaching the desired negative pressure in the reservoir 101. In the embodiment shown in Figure 2, then the valve 1 15 is closed.
- Step S8 Opening of the output flap 121 of the metering chamber 120 leads to the dispensing of the portion of the solids-adding agent 102 located in the metering chamber 120, in the example of an addition agent shaped body 103, into the washing chamber 4. Specifically, the adding agent chamber 120 Shaped body 103 fall into the washing compartment due to gravity due to the opening of the output flap 121.
- Step S9 Close the discharge door 121 results in a state as at the end of the step S3. In this state, the dosing system 100 remains until the beginning of the next dosing process as part of a wash program. The steps S4 to S9 can then be repeated until the supply of solids-adding agent 102 in the storage container 101 has been used up (query step S10). Then again a new reservoir 101 must be used.
- step S 5 a portion of the solids-adding agent 102, in the example shown of an addition agent shaped body 103, can also be dispensed directly from the storage container 101 into the wash chamber 4.
- the steps S8 and S9 then omitted.
- FIGS. 4-7 Various schematic representations of an embodiment of an output lock 123 of the metering system 100 according to the invention are shown in FIGS. 4-7.
- the dispensing lock 123 of FIGS. 4-7 has a metering chamber 124.
- the metering chamber 124 has a conical discharge area 125 arranged in its bottom.
- the conical discharge region 125 of the metering chamber 124 is apparent and closable by means of a reciprocating piston 126.
- the reciprocating piston 126 is actuated via a lever arm 127 by means of a linear drive 130.
- the lever arm 127 has two arms 128, 129, in particular of different lengths, on.
- a translation 131 is arranged between the shorter arm 128 of the lever arm 127 and the linear drive 130.
- a translation 131 is arranged between the shorter arm 128 of the lever arm 127 and the linear drive 130.
- the shorter arm 128 has a slot 132.
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016210397.0A DE102016210397A1 (de) | 2016-06-13 | 2016-06-13 | Haushalts-Geschirrspülmaschine mit einem Dosiersystem für Feststoff-Zugabemittel |
| PCT/EP2017/060753 WO2017215832A1 (de) | 2016-06-13 | 2017-05-05 | Haushalts-geschirrspülmaschine mit einem dosiersystem für feststoff-zugabemittel und entsprechendes verfahren |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3468441A1 true EP3468441A1 (de) | 2019-04-17 |
| EP3468441B1 EP3468441B1 (de) | 2022-09-28 |
Family
ID=58737555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17724330.0A Active EP3468441B1 (de) | 2016-06-13 | 2017-05-05 | Haushalts-geschirrspülmaschine mit einem dosiersystem für feststoff-zugabemittel und entsprechendes verfahren |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3468441B1 (de) |
| DE (1) | DE102016210397A1 (de) |
| PL (1) | PL3468441T3 (de) |
| WO (1) | WO2017215832A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018214631A1 (de) * | 2018-08-29 | 2020-03-05 | BSH Hausgeräte GmbH | Geschirrspülmaschine mit einer automatischen Dosiervorrichtung |
| US11284776B2 (en) | 2018-12-22 | 2022-03-29 | Emz-Hanauer Gmbh & Co. Kgaa | Tablet dosing system and water-carrying domestic cleaning apparatus equipped therewith |
| US12042114B2 (en) | 2019-05-13 | 2024-07-23 | Reckitt Benckiser (Brands) Limited | Dosing device, storage cartridge, dosing unit and water-bearing household appliance with an automatic dosing system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6608792A (de) * | 1966-06-24 | 1967-12-27 | ||
| DE7100677U (de) * | 1971-01-09 | 1971-05-19 | Haeberle K | Dosiervorrichtung |
| DE3219902A1 (de) * | 1982-05-27 | 1983-12-01 | Stig Göran 21613 Malmö Ahlbeck | Dosiervorrichtung fuer pulverfoermige flockungshilfsmittel |
| DE3835719A1 (de) * | 1988-10-20 | 1990-04-26 | Joachim Schmid | Vorrichtung zum zugeben von granulatfoermigem reinigungsmittel |
| IT1259394B (it) * | 1992-03-26 | 1996-03-13 | Eltek Spa | Dispositivo a grande autonomia per dosi multiple di detersivo polverulento, nelle macchine lavatrici |
| EP0611843B1 (de) * | 1993-02-15 | 1998-05-20 | R.& D.S. S.r.l. | Automatische Vorrichtung zur Abgabe und Dosierung von Pulverwaschmitteln in Waschmaschinen |
| EP1159913B1 (de) | 2000-06-02 | 2004-08-18 | Chemische Fabrik Dr. Weigert GmbH & Co KG | Dosiereinrichtung für Geschirrspülreinigertabletten |
-
2016
- 2016-06-13 DE DE102016210397.0A patent/DE102016210397A1/de not_active Withdrawn
-
2017
- 2017-05-05 WO PCT/EP2017/060753 patent/WO2017215832A1/de not_active Ceased
- 2017-05-05 PL PL17724330.0T patent/PL3468441T3/pl unknown
- 2017-05-05 EP EP17724330.0A patent/EP3468441B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| PL3468441T3 (pl) | 2022-12-19 |
| EP3468441B1 (de) | 2022-09-28 |
| DE102016210397A1 (de) | 2017-12-14 |
| WO2017215832A1 (de) | 2017-12-21 |
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