DE102007040324A1 - Toilet freshener with rinse water-independent active ingredient delivery - Google Patents

Abstract

Toilet washer (1) comprising an energy source (3), a control unit (4), a sensor unit (5), and at least one first container (9), which contains a first preparation (10) and with the toilet freshener ( 1) is coupled, wherein the sensor unit (5) detects a triggering of the flushing water flow without intervention in the Spülwasserströmung and generates a sensor signal which is passed to the control unit (4), which converts the sensor signal into a control signal for dispensing at least one preparation.

Description

The The invention relates to a toilet freshener with an electromechanical caused release of preparations in or on a toilet bowl wherein the toilet freshener comprises at least one sensor, the the detection of a rinsing process without significant influence the flow conditions in a toilet bowl allowed.

State of the art

The accurate and appropriate dosage of pourable or pourable Composition is for a variety of applications of relevance.

Especially In the household sector, the dosage undergoes more fluid Substances of increasing importance, which preceded in the exact and needs-based dosage of the corresponding active ingredients justified is, on the one hand, the environment through resource conservation and prevention spared from overdose and overdose, on the other hand the Efficiency of the dosed active ingredients is optimized.

The Dosing of cleaning and fragrance compositions in the toilet area is currently being implemented primarily by so-called toilet flush. These are single or multi-chamber containers, which are hung in the toilet bowl so that during the flushing process of the toilet bowl with water an active ingredient release from the toilet freshener done in the toilet bowl.

Such devices are made, for example EP0828902 or DE10113036 known.

One major disadvantage of this toilet freshener is that the dosage essentially from the respective local flow conditions in the toilet bowl during the flushing process. However, the flow conditions may vary of the toilet type and the positioning of the toilet rinser be very different in or on the toilet bowl. That's the way it works For example, occur that some types of toilet no Release of active substance from the toilet flush takes place, since the Toilet rinse during the flushing process is not or not sufficient is overflowed with water and the metering mechanism of the toilet flusher is thus not triggered.

Also if a toilet-rinse use of Rinse water is overflowed, so this is in so far from disadvantage, as that it to a disturbance of the provided by the toilet manufacturer water supply comes, which The flushing power of a toilet noticeably reduced can be.

The Release of the active ingredients from such toilet flushers is more common Way through the penetration of rinse water through openings in the toilet freshener, wherein the drug substances dissolved and at the exit of the rinse water through corresponding outlet openings be discharged from the toilet bowl and washed away. Depending on the arrangement of the toilet rinser in the toilet this is due to the often very different flow conditions locally the rinse water outlet from the edge of the toilet flows through different degrees, resulting in only one Diffuse release of the active ingredients can be realized.

Usually the flushing water flow is as shown at the beginning influences the introduction of a toilet rinse. By the changed flow conditions may cause a significantly changed flushing behavior of the toilet come. Often the flushing water flow is in such influences that splash of water from the toilet bowl upwards is sprayed so that flushing water from the toilet bowl leaking or in contact with the toilet can come with the user, which regularly as uncomfortable.

Of Another is through a targeted flow guidance in the toilets tried the flushing water amounts used with consistent or improved rinsing behavior further reduce, so that interferes with the flushing water flow in such optimized toilets, a much larger Has influence on the rinsing behavior.

It would therefore be desirable via a metering device to dispose of active substances in a toilet bowl, the one independent of the flushing of the toilet Dosing of active ingredients realized in the toilet bowl.

Object of the invention

task It is therefore an object of the invention to provide a device the active ingredients in the flushing process in a toilet bowl gives off without the flow conditions during the flushing process be influenced in the toilet bowl.

The Task is solved by having a toilet freshener solved according to the features of claim 1.

Of the inventive toilet freshener consists of various components in turn turn into assemblies can be summarized. The components of the toilet rinse comprise at least one pump, a delivery element, a control unit, a sensor unit, an energy source, a container, a fastener and a preparation. The components pump, Control unit, sensor unit and power source can be used in a preferred embodiment of the invention to the Assembly "dosing" be summarized. The components and assemblies are described below.

dosing

In The dosing device is the operation of the toilet rinser necessary energy source, a control unit, a sensor unit and integrated at least one pump. Preferably, this is Dosing device made of a splash-proof Housing that prevents the ingress of splashing water, as is the case the use of the toilet rinse aid according to the invention can occur in a toilet bowl, inside the dispenser prevented.

Further it is preferred that the dosing device on the outside Edge of the toilet bowl is arranged, which on the one hand Protection against splash water and on the other hand a konveniente Operation of the dosing device is possible. Further The dosing device does not protrude into the interior of the toilet by the outer edge-side arrangement, the usable cross-sectional area of the toilet bowl is not reduced.

There the preparations to be dosed depending on the intended use should have a pH between 2 and 12 should all components of the toilet flusher, in contact with the Preparations come, a corresponding acid and / or Have alkali resistance. Furthermore, these should be the components largely chemically inert by suitable choice of material, for example, against nonionic surfactants, enzymes and / or fragrances be

Especially It is advantageous, the electrical components of the invention WC-Spülers such as the power source, the control unit, the sensor unit separately or together with each other in such a way shed that metering device substantially waterproof, the dosing device so even when complete Conclusion with liquid is functional. As potting materials, for example, multi-component Epoxy and acrylate potting compounds, such as methacrylate esters, Urethane-metha and cyanoacrylates or two-component materials be used with polyurethanes, silicones, epoxy resins.

One An essential advantage of the invention is the separation of the toilet rinser in a dosing device and in one with the dosing device Coupling container to see, causing the toilet freshener flexible for a wide variety of applications used and easily adapted.

pump

A Pump in the sense of this application is a fluid energy machine for Moving or conveying especially small amounts of one Fluids by converting a mechanical drive power into a flow power.

Under Fluids are hereafter liquids and gases, as well Mixtures thereof and understood with solids.

The Pump can be selected from the group of positive displacement pumps, oscillatory pumps, diaphragm pumps, piston pumps, rotary Pumps, dynamic pumps, centrifugal pumps, electrohydrodynamic Pumps, electroosmotic pumps, magnetohydrodynamic pumps, Surface Acoustic Wave Pumps, Capillary Force Pumps, Electrowetting Pumps, thermocapillary pumps.

The pump is either directly or through the intermediary of the control unit with the power source connected.

In Another embodiment of the invention is the delivery at least one preparation without the action of a pump alone schwerkraftbewirkt. The release of preparation from the container to the environment in this configuration, for example controlled a valve that opens to release the preparation and to prevent delivery. The valve can be powered directly by the power source or by interposing the control unit be controllable.

The Pump, the sensor and the control unit are advantageous configured in such a way that a defined delivery amount of active ingredient preparation regardless of the arrangement of the toilet rinser in or on the toilet bowl and / or on the toilet bowl delivered rinse water amount in the toilet bowl becomes.

By The pump also allows that at least two different, defined discharge amounts at least an active ingredient preparation are releasable. A significant advantage this particularly advantageous embodiment of the invention is the appropriate dosage of active ingredients in the toilet bowl, which makes resource-saving and more effective use of Active ingredients can be effected.

In another, preferred embodiment of the invention the pump is configured to release a drug preparation with a viscosity <5000 mPas is suitable.

micropump

The Flow rate of a micropump is usually between 50 nl and 100 ml per minute, preferably between 250 nl and 30 ml per minute, more preferably between 500 nl and 5 ml per minute.

The micropump preferably has a construction volume of less than 5 cm ³ , particularly preferably less than 3 cm ³ , particularly preferably less than 2 cm ³ .

The specific delivery of a micropump, formed from the ratio of flow rate to volume a micropump, is usually less as 500 [1 / min]. Preferably, the specific flow rate is between 1 and 300, more preferably between 1.5 and 200, in particular preferably between 2 and 150, most preferably between 2.5 and 100.

diaphragm pumps

Especially advantageous for the dosage of cleaning and active ingredient preparations as well as fragrances are membrane pumps.

diaphragm pumps usually consist of an inlet and an outlet valve in or out of a pumping chamber, which partially consists of a pumping membrane is formed and an actor.

Of the Actuator causes a compression of the closed inlet valve Pumping chamber by mechanical action on the pumping membrane, thereby the fluid in the pumping chamber over the opened Outlet valve is pumped out of the pumping chamber.

is the exhaust operation is completed, the exhaust valve closed and the decompression of the pumping chamber by the actuator causes the fluid over the now open Inlet valve is sucked into the pumping chamber.

It it can be seen that by a suitable configuration and / or Control of the valves and the actuator, the conveying direction the micropump can be influenced or vice versa.

Of the Actuator of the diaphragm pump can, for example, from the group of electromotive, piezoceramic, bimetallic, memometallic, pneumatic, peristaltic, electrostatic, electromagnetic, thermal Drive units to be selected.

The Valves can be designed as active or passive valves be. The passive valves may in particular be flap valves, Diaphragm valves or No-Moving Parts valves act.

ever According to application, the pressure side delivery of the preparation from the metering device dropwise, jet or spray-like, diffused or by evaporation.

Especially for preparations that tend to be stored for extended periods To form deposits, it may be advantageous to the preparation container to be arranged on the pressure side of the pump. In this configuration, only a fluid is free of deposits promoting substances formed by the pump. Especially It is advantageous in this case to use air as the fluid.

The Fluid is pumped into the container under pressure. The container has a pressure balance valve that when exceeded a defined pressure in the container the product flow releases from the container.

hereby In particular, it becomes possible to use the metering device to use for a wide variety of preparations, without the functionality of the pump due to possible deposits or to endanger reactions between two preparations.

release elements

When Dispensing elements are called any kind of devices, which are suitable, a drug substance to the environment of the metering device leave.

The Dispensing elements may be selected, for example be from the group of nozzles, spray heads, drop dispensers, Foam spray heads, piezo elements, porous Elements, wick systems, capillary systems, nebulizers, ultrasonic nebulizers, Ionizing nebulizer etc.

to Delivery of active ingredients in the toilet or on the inside Toilet bowl surfaces are in particular nozzles, Spray heads, drop dispensers, foam spray heads, Piezo elements and the like are suitable.

to Delivery of active ingredient preparation into the air are particularly suitable Nozzles, atomizers, spray heads, Piezo elements, sintered plates, porous elements, wick systems and the same.

The Dispensing elements may be the same or different types of spray cones have in the delivery of the preparations. That's the way it is, for example conceivable that a discharge element a beam with a more point-like Application area, while another delivery element creates a flat application field. Of course are various combinations of different spray cone shapes conceivable.

The The dispensing element may further comprise electrostatic charging means of active substance droplets, whereby the wetting, Adhesion and / or distribution of the active substance on a surface and / or is improved in the air.

Of Furthermore, the dispensing element can be designed as a fan, either by sucking bad smells to improve the air quality or for an optimized distribution of active ingredient in or can be configured on the toilet bowl.

In particular, the delivery elements can be configured in such a way that one or more active substances are released in different directions from one another. In the following table, by way of example but not necessarily, some possible configurations regarding the dispensing direction are listed. Dispensing direction A Dispensing direction B Fragrance release in the toilet bowl Fragrance delivery to the environment Detergent dispensed into the toilet bowl Discharge of detergent under the edge of the toilet (during rinsing or outside the rinsing process Detergent dispensed into the toilet bowl Fragrance delivery to the environment

Of course is also any further, any combination of the above table possible configurations.

It is also advantageous, the discharge element movable on the bracket to arrange the toilet rinse. This allows the delivery element and the spray cone of the preparation targeted by the user be aligned with a defined application field in or at the toilet with preparation to moisten.

The or the dispensing elements are advantageously configured in such a way that a defined delivery amount of at least one active ingredient preparation regardless of the positioning of the toilet bowl directed at the toilet bowl and defined in the interior of a toilet bowl is applied. Advantages of such a configuration are u. a. the more specific exposure of toilet bowl surfaces with one or more active ingredients, with different surfaces can be treated with different active ingredients. For example, in a flat washer, the pan with wetted with an active ingredient to reduce buildup, while on the funnel-shaped from the pan to the edge of the toilet running walls an active ingredient is applied to reduce limescale.

control unit

A Control unit in the sense of this application is a device that is suitable to transport material, energy and / or To influence information. The control unit influences this Converters with the help of information that they are in the sense of the control objective processed.

at the transducers may be, for example, pumps and / or valves act.

There the toilet freshener in a preferred embodiment of the invention does not use mechanical controls for product release, the toilet freshener can be miniaturized in such a way that They also in applications where the size of the toilet flusher is critical, can be used.

Especially For example, the controller may be a programmable microprocessor act. In a particularly preferred embodiment the invention is on the microprocessor, a plurality of dosing programs stored according to the coupled to the toilet flusher Containers are selectable and executable. Of course, it is also conceivable that the dosing programs manually accessible by the user.

The Control unit is preferably also the outward-facing Side of the toilet bowl, from where they pass through the Users can be operated in a simple way, especially if the user is sitting on the toilet.

In a particularly preferred embodiment of the invention, the control unit may comprise a dosing program for introducing at least two mutually different active compound preparations into a toilet bowl or into the environment of the toilet bowl, at least two different active substance preparations being released on at least two successive times t ₁ and t ₂ be introduced, wherein at least one active ingredient preparation is introduced into the interior of a toilet bowl.

An essential advantage of such a dosing program is, inter alia, an optimized cleaning performance by the most precise control of possible chemical reactions by a corresponding time delayed release of the corresponding preparation or preparations, of which some, but not exhaustive examples are listed in the table below. t ₁ t ₂ advantage Cleaner in toilet bowl during the flushing process Perfume in toilet bowl after rinse Optimized perfume development, as perfume is released after the rinse in the toilet bowl and so is not washed away with the rinse water. Perfume is not "decomposed" by detergent preparation. Fragrance in toilet bowl immediately before use Cleaner in toilet bowl during the flushing process Optimized perfume development, as fragrance is released before the rinse in the toilet bowl and so is not washed away with the rinse water. Perfume is not "decomposed" by detergent preparation. Cleaner A in toilet bowl immediately before use Cleaner B in toilet bowl during rinsing process Cleaner A can prevent buildup in the toilet bowl by applying a cleanser A protective film to the toilet bowl immediately prior to use of the toilet, which is then rinsed from the toilet surface during rinse B rinse operation.

The Control unit may in particular be designed in such a way that allows setting parameters in the dosing programs is. For example, sensor thresholds can be used in the preconfiguration of the toilet rinser or by the Users can be adjustable during use, for example triggering drug release at a given Sensor threshold. The setting of one or more Parameter may be through an appropriately configured input device be realized on the toilet dishwasher. This allows the controller of the toilet flusher further optimized and to a specific Use case to be adapted.

sensor unit

The Sensor unit may have one or more active and / or passive sensors for the qualitative and / or quantitative assessment of mechanical, electrical, physical and / or chemical quantities, which are passed as control signals to the control unit.

Especially The sensors of the sensor unit can be selected from the group of Timers, infrared sensors, brightness sensors, temperature sensors, Motion sensors, strain sensors, speed sensors, proximity sensors, Flow sensors, color sensors, gas sensors, vibration sensors, Pressure sensors, conductivity sensors, turbidity sensors, Sonic pressure sensors, "lab-on-a-chip" sensors, force sensors, Accelerometers, inclinometers, pH sensors, humidity sensors, Magnetic field sensors, RFID sensors, magnetic field sensors, Hall sensors, Bio chips, odor sensors, hydrogen sulfide sensors and / or MEMS sensors are selected.

The Sensor unit can in its simplest conceivable embodiment also designed as a tilt, push or push switch be.

Especially for preparations whose viscosity is temperature-dependent varies greatly, it is the volume or mass control of the metered Preparations of advantage, flow sensors in the metering device provided. Suitable flow sensors can from the Group of orifice flow sensors, electromagnetic flowmeters, Mass flow measurement according to the Coriolis method, vortex meter flow measurement method, Ultrasonic flow measurement method, float flow measurement, Ring piston flow measurement, thermal mass flow measurement or differential pressure measurement may be selected.

It It is also conceivable that in the control unit one of the temperature dependent viscosity curve of at least one preparation is deposited, with the dosage according to the temperature and thus the viscosity of the preparation by the control unit is adjusted.

In Another embodiment of the invention is a device for direct determination of the viscosity of the preparation intended.

The previously listed alternatives for determining the dosage or the viscosity of a preparation are used to produce a control signal that is controlled by the control unit a pump is processed that is essentially a constant Dosing a preparation is effected.

In a further preferred embodiment of the invention the sensor is configured in such a way that the detection of a Rinsing process without significantly influencing the flow conditions realized in a toilet bowl. For example, you can ultrasonic sensors are used for this purpose.

energy

in the The meaning of this application is a component of the energy source Metering understood, which is appropriate is, suitable for self-sufficient operation of the metering energy to provide.

Preferably The energy source provides electrical energy. The energy source may be, for example, a battery, a power supply, solar cells or the like act.

Especially It is advantageous to make the energy source interchangeable, for example in the form of a replaceable battery.

It However, in principle it is also conceivable that it is the energy source is a mechanical energy source, such as a Dynamo, which converts a mechanical or fluidic energy into electrical Energy converts. This can then be stored in suitable memory elements such as a capacitor or accumulator stored become.

container

Under a container in the context of this application is a packaging understood, which is suitable to wrap preparations or hold together and to deliver the preparation to the Dosing device can be coupled.

Especially preferred is an arrangement in which two containers are provided are, which are, more preferably, separated from each other and respectively contain a drug fluid. But it can also be several storage tanks for multiple drug fluids. The reservoir are separated from each other to premature mixing of the drug fluids to prevent. You can be physically separate or as separate compartments in a coherent body be educated.

Prefers is the volume ratio formed from the Construction volume of the dosing and the filling volume of the container <1, particularly preferably <0.1, particularly preferably <0.05. This ensures that for a given total construction volume of dosing device and container, the vast majority the volume of construction through the container and the contained therein Preparation is claimed.

Of the Container usually has a filling volume of <5,000 ml, especially <1.000 ml, preferably <500 ml, more preferably <250 ml, most preferably <50 ml up.

The Invention is particularly suitable for dimensionally stable containers such as cups, cans, cartridges, cartridges, bottles, canisters, cans, Boxes, drums or tubes, but can also be flexible Containers such as bags or sacks are used, especially when used according to the bag-in-bottle principle become.

Especially For example, a container may also include a plurality of chambers that are associated with from each other different compositions are filled. It is also conceivable that a plurality of containers to one Unit, for example, to a cartridge, is arranged.

Examples of possible combinations of containers or chambers with the corresponding preparations are exemplified for some applications in the following table. Container A Container B Container C cleaning supplies perfume Cleaning agent A Cleaning agent B Cleaning agent A Cleaning agent B perfume

In a preferred embodiment of the invention, the container has an RFID tag that At least information about the contents of the container includes and that is readable by the sensor unit.

These Information can be used to one in the control unit to select stored dosing program. This can be sure to always have one for a given one Preparation optimal dosing program is used. It can also be provided that in the absence of an RFID label or an RFID tag with a wrong or incorrect identifier, no dosage is done by the metering device and instead An optical or audible signal is generated that the user indicates the present error.

Around to exclude misuse of the containers the containers may also have structural elements, with the corresponding elements of the dosing after the key-lock principle interact, so for example only containers of a certain type to the dosing device can be coupled. Furthermore, it is possible by this embodiment, that information about the to the dosing device coupled container transferred to the control unit be, whereby one on the contents of the corresponding container coordinated control of the metering device can be done.

In According to a further embodiment of the invention, the container to be under pressure. This is particularly advantageous if the Preparation to be sprayed or dispensed without that an intermediate circuit of a pump is necessary. In this Case, the release of the preparation, for example, by a control valve be controlled or regulated that in operative connection with the Control unit is. This version has the other Advantage that no energy for the transport of the preparation must be provided by the energy source, what the source of energy either smaller or longer Life expectancy will have.

fastener

Of the WC flusher further includes attachment means to the Fix toilet bowl to the toilet bowl. The fasteners For example, as a suction cup, tape, strap or the like may be formed.

The Attachment of the toilet-rinser can alternatively also on the cistern the toilet, the toilet seat or the toilet lid. For this purpose, those in the prior art can be sufficient known fasteners are used.

preparations

preparations For the purposes of these applications are compositions which at least a substance from the group of detergents and / or fragrances contain.

According to one Another preferred embodiment of the invention, include Preparations substances for the modification of surfaces, in particular of ceramic surfaces.

According to the invention suitable Preparations are, for example, scent phases, in particular perfumed Fragrance phases. Such fragrance phases usually contain at least a perfume, preferably perfume oil, at least a surfactant or an emulsifier and water and optionally other ingredients such as preservatives, thickeners, complexing agents, dyes, other surfactants or emulsifiers, stabilizers, lime solubilizers Etc.

Likewise according to the invention suitable as preparations are bleaching phases, in particular chlorine-containing bleaching phases, preferably bleaching phases based on hypochlorite, wherein the bleaching phases usually in addition the actual bleach and water possibly other ingredients such as thickeners, surfactants or emulsifiers, neutralizing agents, Dyes, fragrances, etc. may contain.

Further According to the invention suitable preparations are limescale Active ingredient phases, preferably acidic lime-dissolving active ingredient phases. Such lime-solubilizing active substance phases can be next to the actual decalcifier - preferably acts this is an organic or inorganic acid - and Water optionally further ingredients such as surfactants or emulsifiers, Thickeners, fragrances, preservatives, etc. included.

Similarly, it is possible to use as preparations highly concentrated surfactant phases, so-called "Foam booster" to use. Such highly concentrated surfactant phases may also contain other conventional ingredients in addition to the surfactants. Such foam boosters are particularly advantageous for pretreatment of the toilet bowl with a foam carpet to prevent or reduce, for example, adherence of metabolic waste products on the toilet surface and / or to cause encapsulation of bad odors.

Also according to the invention suitable are preparations with antibacterial and / or fungicidal and / or antiviral active phase, wherein the active phase in addition to the antibacterial and / or fungicidal and / or antiviral active and water optionally further ingredients, such as surfactants or emulsifiers, thickeners, fragrances, preservatives etc. may contain.

Further it is possible that the preparations are enzyme-containing Active substance phases act. Such enzyme-containing active phases In addition to enzyme (s) and water may contain other ingredients such as surfactants or emulsifiers, thickeners, fragrances, preservatives etc., included.

equally it is possible that it is used in the invention Preparations for absorbing, in particular odor-absorbing Drug phases is. These can be next to the absorbent, in particular odor absorbents, and water optionally further ingredients such as surfactants or emulsifiers, thickeners, fragrances, preservatives etc. included.

Of the According to the invention toilet flusher offers according to a particular embodiment, the possibility in the storage containers combinations of different preparations to use, according to a preferred embodiment one of the reservoir a fragrance phase, in particular as previously defined.

Examples for preparation combinations to be used are perfumed Aroma phase combined with chlorine bleach (not together with each other stable on storage), perfumed fragrance phase with highly concentrated Surfactant phase (foam booster), scent phase with lime-dissolving, acidic phase, fragrance phase with antibacterial phase, different acid systems, fragrance phase combined with enzyme-containing active substance phase, perfumed acid phase combined with water-coloring phase, fragrance phase with odor-absorbing Phase, perfumed acid phase with active oxygen, perfumed acid phase with active ingredient phase, with Polyacrylate thickened etc.

From Of particular interest are viscous bis gel-like active fluids with viscosities in the range of some a thousand mPas, in particular from 200 to 5000 mPas, preferably 500 up to 3500 mPas (measured with RotoVisko LVTV II, spindle 31, 5 rpm, 20 ° C).

In a further preferred embodiment of the invention, the Preparations have a viscosity of less than 2000 mPas, in particular less than 1000 mPas, (measured with RotoVisko LVTV II, spindle 31, 5 rpm, 20 ° C). Such a fluid to aqueous preparations are particularly suitable if the preparation is sprayed in or on the toilet bowl should.

By the use of low-viscosity active substance preparations can be described in Connection with the toilet freshener according to the invention a much faster and more accurate dosage causes and on the use of thickening systems are dispensed with. Further can drug systems are used, which only with low viscosities can be displayed, for. B. on the base of chlorine, HCl, ect ..

The Preparation may according to another embodiment the invention under pressure. This is particularly advantageous if the preparation is to be sprayed or dispensed, without the interposition of a pump is necessary. In this Case, the release of the preparation, for example, by a control valve be controlled or regulated that in operative connection with the Control unit is. This version has the other Advantage that no energy for the transport of the preparation must be provided by the energy source, what the source of energy either smaller or longer Life expectancy will have.

List of Figures

1 Toilet washer with preparation container on the suction side of the pump in a schematic block diagram

2 Toilet washer with preparation container on the pressure side of the pump in a schematic block diagram

3 Toilet washer with two-chamber preparation container on the suction side of the pump in a schematic block diagram

4 Toilet washer with passive valve-controlled two-chamber preparation container on the suction side of the pump in a schematic block diagram

4a Toilet washer with active valve-controlled two-chamber preparation container on the suction side of the pump in a schematic block diagram

5 Toilet freshener with two pump-connected preparation containers in a schematic block diagram

6 Flow chart for controlling the toilet flush with a pump

7 Flow chart for controlling the toilet flush with a pump and multi-chamber preparation container

8th Flow chart for control of toilet flush valves with several pumps and multi-chamber preparation containers

9 Toilet washer with RFID label on preparation container in a schematic block diagram

10 Toilet washer with removable refill container in a schematic block diagram

11 Toilet freshener with refill container fixed to the dispenser in a schematic block diagram

12 Toilet washer with integrated battery in the refill tank in a schematic block diagram

13 Toilet washer with 2-chamber refill and two pumps

14 Toilet washer with 2-chamber refill, a pump and a control valve in a schematic block diagram

15 Toilet freshener with extendable handle in perspective view

16 Toilet washer with removable container and wick system in perspective view

17 Toilet freshener with arranged on a strap end discharge element in side view

18 Toilet flush with arranged at a temple end dispensing element in view of a toilet bowl

19 Toilet freshener with individually replaceable containers in perspective view

20 Dispensing element with integrated sensor unit and two dispensing nozzles in perspective view

21 Dispensing element with integrated sensor unit, two dispensing nozzles and two spray cones in perspective view

22 Toilet freshener with dispensing element and two spray cones in a perspective view of a toilet bowl

23 Toilet freshener with discharge element arranged under the toilet rim and two differently oriented spray cones in side view

24 Toilet freshener with discharge element arranged under the toilet rim and a spray cone directed below the edge of the toilet in side view

25 Toilet freshener with two individually replaceable containers and a viewing flap in closed and open position in perspective view

1 shows the toilet freshener according to the invention 1 coming out of the dosing device 2 and one with the dosing device 2 connected, a preparation 10 contained container 9 consists.

The dosing device 2 includes an energy source 3 , a control unit 4 , a sensor unit 5 and a pump 6 These components are preferably integrated in a housing. The pump 6 is about the control unit 4 with the energy source 3 connected. The control unit 4 in turn, with the sensor unit 5 connected, which controls the control of the pump 6 to the control unit 4 passes.

The pump 6 has a pressure line 7 and a suction line 8th on, with the suction line 8th with the preparation 10 containing container 9 connected is. The pump 6 thus promotes the flowable preparation 10 over the suction line 8th from the container 9 in the pressure line 7 from where the preparation 10 to the environment of the toilet-rinser 1 is delivered. The pressure line 7 may in particular such, for. Example, by choosing a suitable diameter, be configured to counteract a gelling of the dispensed preparation.

The container 9 can be a pressure balance valve 11 having a pressure equalization between the environment and the interior of the container 9 causes when the pump 6 preparation 10 from the container 9 pump out.

The pump 6 can through the control unit 4 be controlled so that the conveying direction of the pump 6 is reversed and getting in the pump 6 and the wires 7 and 8th still present preparation in the container 9 be transported back. This backwashing can be particularly advantageous if the preparation 10 for example, for thickening and thus for gluing the lines 7 or 8th inclines.

2 shows a further embodiment of the 1 known metering device, wherein the container 9 pressure side with the pump 6 connected is. The pump 6 builds in the container 9 put pressure on ambient air in the container 9 pumps, leaving the preparation from the container 9 is displaced. On the preparation output side of the container 9 can a valve 11 be provided that the delivery of the preparation 10 from the container 9 only when a defined pressure in the container is reached 9 releases. This can be particularly advantageous if no dropwise metering, but a defined spray or spray similar dosage should be made.

In addition, between the pump 6 and the container 9 in the pressure line 7 a check valve 11a be arranged to prevent that in the container 9 established pressure at standstill of the pump 6 through the pressure line 7 escapes.

3 shows that off 1 known dosing device 2 in which a two-chamber container, consisting of the containers 9 and 13 is formed, with the suction line 8th the pump 6 connected is. The containers 9 and 13 each contain different compositions 10 and 14 ,

The containers 9 and 13 can each be pressure compensation valves 11 . 12 exhibit.

The bottom discharge openings of the containers 9 and 13 are like that with the suction line 8th and the pump 6 connected to the preparations 10 and 14 in defined proportions to each other through the suction line 8th be pumped. For this purpose, it may be necessary, the flow conditions in the bottom-side discharge openings of the container 9 and 13 leading pressure lines 8th to design accordingly.

When using more than two different preparations 10 and 14 it is advantageous to control the dosage such that in each case two compatible formulations successively through the lines 7 . 8th and the pump 6 be encouraged.

The Incompatibility of two preparations, for example by an exothermic reaction, thickening, flocculation, pH Change, color change or the like justified be.

Furthermore, a third container may be provided, which contains a flushing fluid, that the lines 7 . 8th and the pump 6 of at least one of the preparations 10 . 14 cleans. For flushing the pipes 7 . 8th and the pump 6 Air can also be provided. By flushing the pipes 7 . 8th and the pump 6 can be avoided that residues of incompatible preparations come into contact with each other.

4 shows a training of 3 known toilet rinser 1 , The to the bottom-side discharge openings of the containers 9 and 13 leading pressure lines 8th each have a passive valve 15 and 16 on which a defined adjustment of the metering ratios of the preparations 10 and 14 from the containers 9 and 13 allow.

The valves 15 and 16 can also be designed as a temperature-sensitive bimetallic valves that open or close upon reaching a defined temperature. In particular, the valves can 15 and 16 be selected from each other bimetallic valves, so that, for example, when reaching a defined temperature only a preparation by the pump 6 from one of the containers 9 or 13 can be promoted.

According to the dosing devices 1 - 4 is mean that the control unit 4 by processing the signals from the sensor unit 5 only the pump 6 regulates.

The principal control algorithm 20 is in 6 reproduced in the form of a flowchart.

The control algorithm 20 is activated as soon as the dosing device 2 is turned on. The control unit 4 receives in a first process step 22 the signals of the sensor unit 5 , In the control unit 4 is the received sensor signal with a in the control unit 4 stored threshold value compared.

In the following process step 24 is checked by means of a selection condition, whether the sensor signal and the threshold are in a defined relationship to each other. If the condition is fulfilled, the following is passed through the process step 25 the pump 6 activated. If the condition is not fulfilled, further sensor signals according to the process step 22 received and evaluated by the control unit.

As from the process steps 25 - 29 As can be seen, the pump remains 6 so long in an activated state until a sensor signal is present, that when compared with one in the control unit 4 stored threshold causes a turn off the micropump. According to this procedure, preparation is pumped out of the containers as long as the sensor signal is between two predefined threshold values for switching the pump on or off 6 emotional.

Alternatively, however, it is also conceivable to modify the control described above in such a way that a simple trigger circuit is realized in which the micropump is switched on in accordance with the process step 25 the delivery of a defined amount of preparation causes subsequently to automatically switch off the micropump, without another sensor signal based switch-off condition for the pump 6 to need.

As in 4a it is also possible to see the valves 15 and 16 as by the control unit 4 to execute actively controlled components. The mixing ratio of the two preparations 10 and 14 can be so active and time-varying influenced.

The control underlying this embodiment is in 7 using a flowchart 30 shown.

Another possibility for active and time-variant influencing of the mixing ratios shows 5 , In this embodiment of the invention, each of the containers 9 and 13 with an individual through the control unit 4 to be controlled pump 6 and 19 coupled. The corresponding control algorithm is in 8th resist given.

9 shows the off 1 known metering device, in which on the container 9 an RFID label 42 is arranged, which is suitable, the size and content 10 of the container 9 to identify.

The sensor unit 5 Includes an RFID receiving unit that stores the information on the container 9 arranged RFID label 42 can read. This information is used as a control signal to the control unit 4 directed to one on the contents of the container 9 coordinated dosage of the preparation 10 to effect. In particular, those through the RFID tag 42 caused control signals for selecting a dosing program stored in the control unit can be used.

hereby is it possible to use a universal dosing device for to provide a variety of dosing applications such as the dosage of preparations in dishwashers, washing machines, Dryers, toilets or living spaces.

Alternative to the RFID label 42 The skilled person may also provide other means for automatically identifying the container 9 and its contents 10 through the dosing device.

Furthermore, at the durckseitigen opening of the pressure line 7 an additional dispenser 43 be provided. This dispenser 43 causes a deviating from the dropwise delivery distribution of the preparation in the environment of the metering device 1 , This may be, for example, a spray or mist-like delivery of the preparation or a delivery based on evaporation or diffusion. The dispenser 43 For this purpose, it can be designed, for example, as a nozzle, atomizer, distributor plate or porous surface. In particular, the dispensing device can be designed such that it counteracts gelling of the released preparations.

10 shows that off 1 known toilet flush with a dosing device 2 detachable container 9 , The container 9 has at its lower, bottom end a nozzle 47 on top of the dosing unit 1 provided recording 48 is insertable. The stub 47 can be closed by a closure means, so that first, in the unused condition of the container 9 , a leakage of preparation 10 from the container 9 is prevented, which, however, by inserting the container 9 into the dosing device 2 or the nozzle 47 in the recording 48 is destroyed, allowing a release of the preparation 10 from the container 9 through the dosing device 2 can be done in the environment. The toilet flusher in its assembled state is the 11 refer to.

The control unit 4 is also with an acoustic transducer 46 coupled, which converts a voltage or a current of the control unit into an audible acoustic signal. The control unit 4 may comprise a memory for a plurality of acoustic signals and / or music and / or voice recordings, which are manually and sensetriggered and executed, ie to the acoustic transducer 46 be slipped.

Furthermore, a light source 44 with the control unit 2 connected, according to a predefined operating state of the dosing unit 2 is switched on or off. The light source can be designed, for example, as an LED or LCD display.

About the actuator 45 can the dosing device 2 be switched on or off. Furthermore, it is conceivable that via the actuating element 45 different in the control unit 4 stored programs are retrieved and executed.

In 12 a further embodiment of the toilet-rinser according to the invention is shown, in which the energy source 3 in the form of a battery in the container 9 is integrated. The battery 3 is via a correspondingly designed coupling with the dosing device 2 electrically connected. The capacity of the battery 3 is advantageously designed so that they the metering device 2 over the period of use until complete emptying of the preparation 10 from the container 9 fed with energy.

13 shows that off 5 principle known construction of the toilet flusher according to the invention in a more detailed schematic sketch. The chamber 9 is through the wall 49 divided into two chambers, in which a first preparation 10 and a second preparation 14 are stored. Each of the chambers is by a respective pressure compensation valve 11 respectively. 12 communicating with the environment and has at its bottom end in each case a connecting piece 47a respectively. 47b on.

In the 15 - 17 a further embodiment of the toilet flushing device according to the invention is shown. The toilet bowl consists of the dosing unit 2 and the detachable on the dosing device 2 fixable container 9 , The dosing device has a raised rear wall from which perpendicular to the fastening means 52 extends in the form of a stirrup. The coat hanger 52 is positioned between the edge of the toilet and the toilet seat, where it is fixed by the resting toilet seat on the toilet bowl. How out 17 can be seen, in addition, a suction button on the dosing device may be provided which secures the toilet freshener additionally by a vacuum effect on the toilet.

On the upside-down head side of the fastener 52 is a pressure or strain gauge sensor as a sensor unit 5 arranged. Will a pressure on this sensor unit 5 exerted, for example, by a toilet seat on which a toilet user takes place, so generates the sensor unit 5 a corresponding signal to the control unit 4 of the dosing device 2 is forwarded.

The container 9 is separable from the dosing device, which is in 16 is clearly visible. The container 9 has a wick system inside 50 on, with the preparation by means of the delivery element 43a from the container 9 is released by evaporation to the environment. The stub 47 and the recording 48 in the dosing device 2 form in the assembled state of container 9 and dosing device 2 a liquid-tight connection.

At the temple 52 is a delivery element 43 provided in the form of a nozzle head. The nozzle head 43 is movable at the temple 52 arranged so that it is alignable by the user. Between nozzle head 43 and the hanger 52 is a telescopic element 53 arranged, by that the length of the bracket 52 and thus the application point of the nozzle head 43 is adjustable. With the nozzle head 43 the preparation becomes a spray cone 54 generated, like, out 18 can be seen, a defined application field within the toilet bowl 55 wetted.

A further, alternative embodiment of the toilet rinser according to the invention is in 19 displayed. In this embodiment, the containers 9 and 13 firmly with the dosing device 2 connected and can not by a not in the 19 refilled opening to be refilled.

20 shows one at the distal end of the stirrup 52 arranged delivery element 43 with an integrated sensor 5 and two nozzles 56 and 57 , The sensor 5 is designed in this embodiment as an infrared sensor or ultrasonic sensor.

The nozzles 56 and 57 may be configured to have the same or different spray cones 54a . 54b produce what is good in 21 is recognizable. As in 22 shown, the spray cone 54a and 54b on that same application field inside a toilet bowl 55 be directed. From the 23 and 24 It can also be seen, however, that it is also possible to direct the two spray cones in different directions.

In the in 23 illustrated embodiment, is the delivery element 43 by a hook inside at the bottom of the toilet bowl 55 fixed. The delivery element 43 is displaceable on the bracket 52 Arranged by the arrow in 23 is symbolized. In addition, the toilet freshener 1 through the fastener 50 , which is designed as a suction button, on the outside edge of the toilet bowl 55 fixed.

The delivery element 43 has a first nozzle 56 and a second nozzle 57 on, spaced from each other and so in the dispensing element 43 are arranged that their respective spray cone 54a and 54b do not overlap in different directions. Such is the spray cone 54a the first nozzle 56 inside the toilet bowl 55 while the spray cone 54b the second nozzle 57 is directed to the edge of the toilet bowl. It is also possible, as in 24 shown a spray cone 54b under the edge of the toilet bowl 55 is directed. The spray cone 54a and 54b may be formed from the same or different compositions.

From the delivery element protrudes a sensor unit 5 in the form of a capacitive sensor under the edge of the toilet 55 so that the sensor 5 is acted upon in the Spülwasserbetätigung of water. The sensor 5 is designed in such a way that it has no significant influence on the flushing water in the toilet bowl 55 takes.

Another embodiment of the container 9 and 13 and the dosing device 2 show the 25 , The reception of the containers 9 and 13 in the dosing device is pivotable by a dosing device 2 arranged flap 58 closable. The two containers 9 and 13 can in the opened state of the flap 58 separate from the holder of the dosing device 2 be removed or used.

25 shows in a further embodiment of the invention, a toilet freshener 1 with two individually replaceable containers 9 and 13 and a viewing flap 58 in closed and open position. The viewing flap 58 is articulated on the rear wall of the toilet rinser in such a shape that the viewing flap 58 the in the toilet-dishwasher 1 used container 9 and 13 preferably completely covered. The viewing flap 58 may be equipped with closure means providing a child-resistant closure of the viewing flap 58 with the Toilet flush valves allow unintentional access to the containers 9 and 13 prevent.

On the front of the toilet rinser are the bulbs 44 and the actuator 45 arranged, wherein these in the closed state of the viewing flap 58 are not covered, but are freely accessible.

1

Toilet freshener

2

dosing

3

energy

4

control unit

5

sensor unit

6

pump

7

pressure line

8th

suction

9

container

10

preparation

11

Pressure equalization valve

11a

check valve

12

Pressure equalization valve

13

container

14

preparation

15

Valve

16

Valve

17

pressure line

18

suction

19

pump

42

RFID tag

43

dispensing element

44

Lamp / Power indicator

45

actuator

46

audible converter

47

Support

48

Recording / well

49

wall

50

fastener

51

wick

52

hanger

53

telescopic element

54

spray cones

55

toilet bowl

56

jet

57

jet

58

flap

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - EP 0828902 [0005]
• - DE 10113036 [0005]

Claims (8)

Toilet freshener ( 1 ) - an energy source ( 3 ), - a control unit ( 4 ) - a sensor unit ( 5 ), and - at least one first container ( 9 ), which is a first preparation ( 10 ) and the one with the toilet freshener ( 1 ), characterized in that the sensor unit ( 5 ) detects a triggering of the flushing water flow without intervention in the Spülwasserströmung and generates a sensor signal that to the control unit ( 4 ), which converts the sensor signal into a control signal for dispensing at least one preparation. Dosing device according to claim 1, characterized in that the sensor unit ( 5 ) comprises an ultrasonic sensor, motion sensor, brightness sensor, vibration sensor, sound pressure sensor, humidity sensor and / or humidity sensor. Dosing device according to one of the preceding claims, characterized in that the threshold value of the sensor signal, wherein the control unit ( 4 ) generates a control signal is adjustable. Dosing device according to one of the preceding claims, characterized in that the sensor unit ( 5 ) is directed into the interior of the toilet bowl. Dosing device according to one of the preceding claims, characterized in that the sensor unit ( 5 ) in a delivery element ( 43 ) is integrated. Dosing device according to one of the preceding claims, characterized in that the sensor unit ( 5 ) at the distal end of a bracket ( 52 ) is arranged with the positioned at the outer edge of the toilet bowl dosing device ( 2 ) connected is. Dosing device according to one of the preceding claims, characterized in that the control unit ( 4 ) is a programmable microcontroller. Dosing device according to one of the preceding claims, characterized in that on the microcontroller a plurality stored by selectable dosing programs.