EP2663775A1

EP2663775A1 - Water closet comprising a bidet

Info

Publication number: EP2663775A1
Application number: EP12700445.5A
Authority: EP
Inventors: Michael Müller
Original assignee: M Mueller Haustechnik AG
Current assignee: INTER CLOSOMAT AG
Priority date: 2011-01-13
Filing date: 2012-01-10
Publication date: 2013-11-20
Also published as: CH704333A2; WO2012094771A1

Abstract

The invention concerns the sector of water closets 51 comprising a bidet device. The invention relates inter alia to an overhung rotary vane pump 11 for the water closet 51 having a bidet device, to the use of the rotary vane pump in a water closet 51 and to a water closet 51 having such a rotary vane pump 11. The invention further relates to a boiler 101 having a panel heating element 103 for a water closet 51 having a bidet device, to the use of the boiler 101 in a water closet 51 and to a water closet 51 having such a boiler 101. Furthermore, the invention relates to an assembly module 61 comprising a boiler 101, a rotary vane pump 63 and a mixing device 66 for a water closet 51 having a bidet device, to the use of the assembly module 61 in a water closet 51 and to a water closet 51 having such an assembly module 61.

Description

WATER LOSS WITH SHOWER

The invention relates to the field of sanitary facilities, such as bidet or water closets with Unterdusche. The invention relates inter alia to a rotary vane pump for a sanitary device, such as bidet or water closet, the use of the rotary vane pump and a water closet with a rotary vane pump. The rotary vane pump includes an electric motor drive unit with a drive shaft, a stator housing in the axial direction of the drive shaft directly or indirectly to the drive unit with an inlet and outlet port, a rotatably mounted in the stator housing on a rotor shaft rotor with radially arranged guides, and containing in the guides radially movably mounted rotary valves, which subdivide in operation the space between the stator housing and rotor in chambers. The space through which the water is pumped in individual chambers from the inlet opening in the direction of rotation of the rotor along the rotor to the outlet opening, hereinafter referred to as pump space.

Furthermore, the invention relates to a hot water treatment device for a sanitary device, such as bidet or water closet with Unterdusche, the use of the hot water treatment device and a water closet with a hot water treatment device. The hot water treatment device comprises a water intake unit with an inlet and outlet opening, wherein the water absorption unit forms at least one water receiving space, and an electric heater, by means of which the water in the water receiving space can be heated. Moreover, the invention relates to a unit for a sanitary device, such as bidet or toilet with shower, the use of the unit and a water closet with the said assembly.

STATE OF THE ART

Water closets with Unterduscheinrichtung have long been known and are becoming increasingly popular. The water closets contain a toilet bowl and a rinsing device for rinsing the toilet bowl. The toilet bowl is in turn connected to a drain line for discharging the dirty water. The Unterduscheinrichtung serves to clean the intimate area of Klosettbenützers. For this purpose, this usually has an extendable in the toilet bowl or swing shower arm over which the shower water can be applied from below or from the side to the desired locations of the genital area. To make cleaning as pleasant as possible, the shower water should be appropriately tempered. For this purpose, the shower water is previously heated in a shower of the associated boiler to a desired temperature before the shower water is supplied via a water pump the shower arm. The water pump is used to direct the shower water under pressure to the shower arm and to be able to apply from this via nozzles accordingly. The individual functional units of the Unterduscheinrichtung such. As boiler, water pump or shower arm are controlled by a corresponding control device.

For example, CH 698 388 Bl describes a water closet with under-shower facility and, in particular, an under-shower facility. Also EP 1 491 693 B1 describes a water closet with under-shower device and in particular a Unterduscheinrichtung. WO 2006/079231 describes a water closet with a Unterduscheinrichtung and in particular a method for the treatment of body-warm shower water for the Unterdusche.

However, conventional water closets or individual units of the water closet and in particular the Unterduscheinrichtung still have inadequacies. First, the individual units are still too large, although the space in the water closet is very limited. That the units are not compact enough and can only with difficulty. be accommodated in the side area of the toilet bowl. On the other hand, the units used are often not durable and especially not corrosion resistant to the shower water and therefore maintenance-intensive. Furthermore, there is the fact that the assembly and disassembly of the units on site, z. B. for service purposes, is time consuming and cumbersome. For example, there is a first problem in the field of water pump, which, among other things, the pressure build-up for the Unterduscheinrichtung. This is particularly prone to corrosion damage and general wear and also takes up much space. A first object of the invention is therefore to propose a pump which is both robust and space-saving.

A second problem is the hot water boiler. This is heated today in a known manner with an imported into the boiler room heating coil. However, the heating coil tends to calcify over time, resulting in a decrease in heating power. Furthermore, the water is not evenly heated by the heating coil. In areas further from the heating coil, the water temperature is much lower than in the immediate vicinity of the heating coil. Moreover, it is known that when heating the water, heating coils always cause noises, such as hiss, which are due to the very strong heating of the water in the immediate vicinity of the heating coil and the resulting water vapor formation. A second object of the invention is Therefore, to propose a hot water treatment device, which is low maintenance and energy efficient, and by means of which the water can be heated quickly, quietly and evenly. A third problem lies in the ease of assembly of the individual units of the Unterduscheinrichtung. A third object of the invention is therefore to propose a mounting unit which facilitates the installation work on site. PRESENTATION OF THE INVENTION

The first object is achieved by a rotary vane pump for pumping a liquid, which is characterized in that the drive shaft of the drive unit towards the rotor forms a shaft extension, and the rotor shaft is directly or indirectly non-rotatably coupled to the shaft extension, the rotor flying on the rotor shaft is mounted and the rotor shaft via the drive shaft is mounted on one side and only in the drive unit.

The drive unit is preferably housed in a motor housing, from which the shaft extension is led out. The motor housing and in particular the passage of the shaft extension through the motor housing is conveniently completed liquid-tight. The bearing of the rotor shaft thus takes place via the bearing of the drive shaft within the motor housing, which storage is housed in this well protected. In the actual pump area, therefore, no bearings are available. As a result, a very robust construction with low maintenance is achieved. By eliminating a second-side storage, the frictional resistance and transmission losses are also reduced. The rotor shaft can now itself be part of the shaft extension of the drive shaft. That is, rotor shaft and shaft extension are formed by one and the same component. However, since the electric motors usually come from mass production with uniform shaft extension, under certain circumstances, a wave adapter piece must be applied to the shaft extension, which in z. B. is adapted with its length and the diameter of the geometry of the pump unit. This adapter piece can, for. B. form the rotor shaft. The rotor shaft can therefore also be a separate component, which is rotatably connected to the shaft extension of the drive shaft. The rotor shaft can, for. B. shrunk onto the wave extension. The shrinking is a well-known in the art process by which two components are connected to each other according to the principle of thermal expansion. The method is therefore not explained in detail here. The rotor shaft can for this purpose consist of a chromium steel, which is best suited for the aforementioned method.

The rotary vane pump preferably has an adapter plate, which is placed on the rotor facing the front side of the drive unit and, for. B. is connected via one or more screw, with this. The adapter plate has a corresponding, preferably centered shaft passage, through which the shaft extension is passed. On that, facing away from the drive unit end face of the adapter plate, the stator housing is preferably arranged, which z. B. is mounted via one or more screw.

Between the drive unit and the rotor, a shaft seal is also arranged, which seals the drive shaft relative to the pump space between the stator housing and the rotor. The shaft seal is preferably embedded in a drive-side arranged, preferably centered recess in the stator housing. The recess can also be continuous. The shaft seal surrounds the shaft passage and corresponding to the drive shaft or rotor shaft and seals it off. On that, away from the drive unit end face of the stator housing a cover is attached, which closes the pump room tight, z. B. by means of screw.

The radially arranged guides in the rotor are z. B. slit-shaped and take platelet-shaped rotary valve, which are received radially freely movable in the guides. The size of the rotary valve is dimensioned so that they can form the said chambers during operation, but do not fall out of the guides. As a rule, the rotary valves move outward during operation solely on account of the centrifugal force and form the said chambers. However, it can also be provided spring elements, which z. B. are arranged in the guides and exert a radially acting on the rotary valve outward restoring force.

The rotary valves are preferably made of a carbon material and therefore corrosion resistant. Furthermore, one or more of the components listed below preferably also consists of a corrosion-resistant material, preferably of metal, and in particular of brass (for example brass 58, CuZn39Pb3):

a) the stator housing,

b) the rotor,

c) the cover, and

d) the adapter plate.

The motor shaft is preferably made of stainless steel. The said components, which may consist of brass, but may also be made of plastic.

The rotor is, as usual in rotary vane pumps, preferably arranged eccentrically relative to the hollow cylindrical interior of the stator housing, so that the Pump space is considerably larger than the space between the stator housing and the rotor in the circumferential area between the outlet opening and inlet opening, viewed in the direction of rotation of the rotor, along which the rotary valves are fed back from the outlet to the inlet opening.

The rotor and the stator housing are preferably circular cylindrical and Letzeres formed hollow cylindrical. The drive unit, or the associated motor housing is also preferably formed circular cylindrical. Accordingly, the adapter plate and the cover are formed in the form of circular discs. The drive shaft is preferably arranged concentrically with the circular-cylindrical motor housing and preferably also with the adapter plate. In order to bring about an eccentric position of the rotor relative to the interior of the stator housing in this arrangement, z. As the preferably circular cylindrical cavity of the stator housing eccentrically relative to the rotor and consequently also designed eccentrically with respect to the drive axle. For this purpose, the interior of the stator housing is applied eccentrically with respect to the preferably circular-cylindrical outer circumference of the stator housing. The stator housing can, for. B. be milled. The circular cylindrical elements, such as motor housing, adapter plate, stator housing and cover preferably have the same diameter. In this way, a compact circular cylindrical rotary vane pump is formed, which can be optimally integrated together with the other components in a water closet.

The electric motor drive is preferably an electric motor, in particular an AC motor, such. B. asynchronous or synchronous motor, or a DC motor. The drive can z. B. be a 24 V AC motor.

The inventive rotary vane pump finds particular application in a sanitary device, such as bidet or water closet, especially in a water closet with a Unterduscheinrichtung. By means of the rotary vane pump is the Cleaning water for the Unterduscheinrichtung charged with the necessary pressure, which is necessary on the one hand for conveying the cleaning water through the lines to the shower arm and on the other hand to produce a reasonably powerful shower jet for body cleansing. Other applications for pumping liquids, especially water or water-containing liquids, especially in the sanitary area, are also conceivable. Thus, the inventive rotary vane pump can also be used in flushing devices for bidets or water closets, by means of which the bidet or toilet bowl can be washed out. Such a rinsing device is z. B. from EP 1 507 935.

When in the present invention in the context of a sanitary device, such as bidet or water closet in conjunction with the rotary vane pump, the hot water treatment device, and the mounting module of "water" is spoken, so this term should not be interpreted too narrow, but in general for liquids which are suitable for cleaning body parts or parts of the water closet. The term "water" therefore includes in particular tap water, treated water, and water-based cleaning fluids or disinfectants.

In connection with the rotary vane pump, the invention also encompasses a water closet, comprising a toilet bowl and a sub-shower device, and containing a rotary vane pump for pumping a cleaning liquid, in particular water, supplied to the shower arm in a supply line. The water closet is characterized in that the pump is a rotary vane pump according to the invention as described above. The Unterduscheinrichtung preferably has a, in the ready state in the toilet bowl projecting shower arm. The shower arm is preferably to the middle of the toilet bowl every now and then from this way off and retractable or extendable and einschwenkbar. The second object is achieved by a hot water treatment device, which is characterized in that the water absorption unit has a room wall facing toward the water receiving space made of a thermally highly conductive material, in particular metal, which is arranged such that it directly with the water in the water receiving space or indirectly thermally good contact is in contact, and on the water receiving chamber side facing away from the room wall, an electric Flächenheizelement, in particular a flexible Flächenheizelement is arranged so that this is directly or indirectly in a planar, thermally conductive contact with the room wall.

The water absorption unit can now be a line section through which the water circulates. In this case, the water receiving space is formed by a duct cavity in the duct portion. The surface heating element is arranged on the outer circumference of the line section. The hot water treatment device corresponds in this case to an electric instantaneous water heater.

The water intake unit may also be a storage container. The water receiving space here corresponds to a storage space formed by the storage container. The storage container has an inlet and outlet opening. The surface heating element is arranged on the outer circumference of the storage container. The hot water treatment device in this case corresponds to an electric hot water boiler. The boiler, or the water inlet and outlet and the at least one surface heating element are preferably controlled by a control device.

The surface heating element preferably comprises a flat, electrically insulating base body. It is characterized by the fact that its thickness is significantly lower than the surface area. Thus, the thickness of the surface heating element z. B. 10 mm or smaller and in particular 5 mm or smaller 2

be. The surface area can z. B. greater 4 cm in particular greater 25 cm ² . The main body may consist of plastic or contain this. Furthermore, the surface heating element comprises a flat heating conductor, which is embedded on all sides electrically insulating in the flat body. This means that the heating element is surrounded on all sides by the electrically insulating base body. The heating element can, for. B. be poured into the body. It can also be provided that the main body of at least two layers, for. As plastic films, formed and the heating element is embedded between the two layers. The layers can be glued or welded against each other. The heating conductor is preferably a heating conductor wire or a heating conductor foil. The heating conductor is made of an electrically conductive material, in particular of metal, such as copper or aluminum. The Heizleiterfolie can z. B. etched or punched or cut out. The heating conductor is preferably arranged in windings in the sheet-like basic body.

The main body is preferably made of a heat-resistant plastic, in particular of a high-performance plastic, such as polyimide. The main body can also consist of a silicone or polyester. The plastic can be reinforced with fibers such as textile fibers, glass fibers or carbon fibers.

The surface heating element is preferably a silicone heating mat. The heating element is embedded between two, preferably textile fiber reinforced, silicone mats. The heating conductor is a heating wire or a heating conductor foil. Surface heating elements allow a precise temperature control and a homogeneous heat distribution in the water receiving space. Due to their low thermal mass, they have short response times and excellent control characteristics. Due to their low mass and low construction height (eg from 0.8 mm), they are predestined for the present use. The surface heating element is also resistant to moisture. With one in continuous operation max. permissible working temperature of around 200 ° C, the surface heating elements are particularly well suited for hot water treatment facilities for sanitary facilities, such as bidet and water closets. The surface heating element or the surface heating element and / or the hot water treatment device may contain additional components such as temperature sensors, temperature limiters and fuses (safety thermostat). These fuses or limitations are to prevent overheating of the device when z. B. due to a disturbance no more water in the water receiving space. The temperature readings are z. B. detected and processed by a control device. The control device in turn controls the surface heating elements. The surface heating elements comprise corresponding electrical means, such as electrical lines.

The surface heating is surface directly or indirectly attached to the room wall. The surface heating element is preferably in direct contact with the space wall of the water receiving space. The surface heating element may, for. B. be glued to the room wall. The surface heating element may be partially or fully attached to the room wall. It is also possible to apply a plurality of surface heating elements to the room wall. The surface portion of the room wall, which is to be heated via one or more surface heating elements, is preferably based on the performance of the surface heating elements and the time that is to be used for heating the water, and the thermal conductivity of the relevant components.

The room wall, which is in good thermal contact with the at least one surface heating element outside the water receiving space and the water within the water receiving space, is preferably completely or partially, for. B. in the area of the surface heating elements, from a thermally highly conductive material, in particular made of metal. The z. As copper or aluminum. The room wall can of course be made of steel or another suitable and good heat conductive material. However, copper is particularly preferably used.

The room wall may also be coated to the outside and / or inside, z. B. with a corrosion protection. However, the coating should only be so thick that the good thermal conductivity towards or away from the room wall will not be affected too much.

The wall body of the water absorption unit may be multi-layered, wherein the above-mentioned space wall z. B. may be an inner layer. Thus, the water absorption unit z. B. be provided against the outside with an insulating layer. The surface heating element can here z. B. between the insulating layer and the room wall. It thus becomes clear that the surface heating element can be formed as part of a multi-part or multi-layer wall body of the water absorption unit, in particular a storage tank wall, or can be integrated into it. It is important in any case that there is always good thermal conductivity from the surface heating element to the water in the water storage space, in particular in the storage container, through the wall body or through the room wall.

The insulation may for example be a preformed, high temperature resistant foam body, which z. B. a bag for receiving the water receiving unit, in particular the storage container, incl. The surface heating element has. The bag can z. B. be closed by a Velcro. This has the advantage that a storage container for inspection work, eg. B. for descaling or replacement of defective temperature sensors or heating elements, can be solved by the insulation.

In order to determine the fill level of a storage container for the device described above, another independent invention is now preferred, which is directed to a liquid storage device with a storage container and a level measuring device for determining a level information, in particular for measuring the liquid level in a storage container and a method thereto.

The storage container is characterized by a thermally highly conductive container wall, which corresponds in application to the above-mentioned embodiments of the above-described room wall. Accordingly, the above-described features and properties of the room wall and the interaction with the heating element and the container interior should also apply to this invention. The container wall is also in good thermal conductivity, direct or indirect contact with the storage liquid. Direct contact means that there is no further wall element between the container wall and the liquid. The container wall, however, may well have a coating (eg, corrosion protection) on the inside of the storage liquid and / or on the outside of a heating element arranged outside the storage space, which, however, must not affect the good thermal conductivity too much. The container wall is preferably made of metal, such as. As steel, aluminum and copper in particular. The container wall may be part of a multi-layered wall system, wherein it is important that there is always a good thermal conductivity of a heating element outside the storage space to the liquid in the storage container through the container wall. The storage container suitably contains an inlet opening for introducing a liquid into the storage container and an outlet opening for discharging a liquid from the storage container. Inlets and outlets may be the same opening or different openings.

At least one, or preferably several, in particular two temperature sensors for determining the temperature of the container wall are arranged on the container wall outside the storage space. The temperature sensor measures locally, z. B. selectively or over a limited area, the temperature of the Container wall. The temperature sensor may comprise a thermocouple or a thermistor. The temperature sensor is preferably an NTC sensor (Negative Temperature Coefficient Thermistor). If two or a plurality of temperature sensors are provided, these are expediently arranged along the direction of gravity or along the line of different fill level levels in the operating state of the storage container.

Furthermore, at least one heating element for heating, in particular for planar heating of the container wall is also arranged outside the storage space. The heating elements are expediently mounted outside the storage space on the container wall. The one or more heating elements are preferably surface heating elements, which bear against the container wall at least part of the area and heat this corresponding part of the area. The heating elements or the z. B. at the same time serve the targeted warming up of the liquid in the storage container, as z. B. in the present, inventive hot water treatment device as described above is the case. In this regard, the above-disclosed features, properties and functions of the at least one surface heating element should also be applicable to this invention. The one or more temperature sensors are now suitably attached to the outside of the container wall in the sphere of influence of the heating element or elements, for. B. glued. This means that the wall area at which the temperature is measured falls in the heating area of the heating element. However, the at least one temperature element is preferably externally attached to a wall region which is not heated directly by the heating element, in particular by the surface heating element, or is covered by it. This prevents that the temperature sensor measures the temperature of the heating element or the temperature measurement is falsified by the temperature of the heating element. The principle of filling level measurement now lies in the fact that the container wall is heated via the at least one heating element at least selectively or part of the surface. Since the container wall of a thermally very good conductive material, this speaks immediately to the active heating element and heats up. If, in a first case, the wall region of the container at which a temperature sensor is located is above the liquid level, then the container wall can only conduct the heat very poorly into the storage space, since the gas contained therein, e.g. As air in the unfilled storage space area is very poor heat is conductive. Accordingly, a relatively high temperature, which may be in the vicinity of the heating temperature, measured. However, if the temperature sensor is located in a wall region of the container below the liquid level in the second case, then this wall region is in contact with the liquid in the storage space. Thanks to the good thermal conductivity of the container wall, we immediately dissipate heat to the liquid in the storage tank. Since the liquid usually has a high heat capacity, a relatively large amount of heat is dissipated from the container wall into the liquid, so that the temperature of the container wall in this area is measurably lower than the temperature in the above-mentioned first case. By this temperature difference alone, it may already be possible to say whether a temperature sensor is above or below the liquid level.

For evaluating the temperature measured values, the liquid storage device comprises a data processing device, eg. B. in execution of a control device. The data processing device is designed so that it can derive a level information from the measured temperature values. This level information includes z. B. the information as to whether the area of the container wall, on which the relevant temperature sensor is located at the measuring time has been below or above the current level. In order to determine this fill level information, the control device compares the temperature measured values in each case preferably with comparison values. The comparison values can be z. B. Reference values or temperature readings from other temperature sensors. The reference values can be z. B. be predefined and recorded values. The reference values can be determined by calculation or via Reference measurements are determined in advance. This means that the reference values can also be determined beforehand or periodically by reference measurements by means of temperature sensors. The reference values reflect the temperature conditions of the container wall according to the first and second case. If the comparison values are derived from temperature measured values of other temperature sensors, the position of these temperature sensors above or below the fill level is advantageously known.

The comparison values can also be derived from heating power values. So z. B. (calculated or empirical) are determined, which temperature should have a certain range of the container wall at a certain heat output, depending on whether the container wall in the first case above or in the second case below the liquid level. Depending on whether the measured temperature comes close to the corresponding comparison value or not, the correct level information can be derived from this.

It is therefore crucial that a data processing device, e.g. B. a control device that receives or has appropriate information that allow her to safely derive by a comparison of the measured temperature values, whether the corresponding container wall area from which the temperature was measured, now above or below the level. In this way, z. B. a control device capable of deriving from the temperature readings a level information that can be used to control the supply of liquid in the storage container and / or the Flüssigkeitsswegfuhr from the storage container. Determines z. For example, if the control means reaches or falls below a lower liquid level, the controller may cause the tank to be filled. Determines z. For example, if the control means reaches or exceeds an upper liquid level during refilling, the controller may stop filling the storage container. The fill level information can now be whether a specific temperature sensor, or the associated container wall area at which the measurement takes place, is above or below the liquid level. When a plurality of temperature sensors are used, the level information may include a level range in which the liquid level was at the time of measurement. The smaller the distance of the temperature sensors from each other, the narrower this level range and the more accurate the information about the actual fluid level at the time of measurement.

If, for example, only a single temperature sensor is used, this is z. B. in the range of a (critical) lower level (minimum level) arranged. If the control device now determines on the basis of the temperature measurement that the relevant container wall region on which the temperature sensor is arranged is at or above the lower filling level, then it activates the liquid supply into the storage container so that it is refilled again to a certain extent. This can be z. B. by the control (opening) of a valve, for. B. a shut-off valve, be at the inlet pipe or inlet opening. In this case, z. B. a defined by the controller fluid amount, so that the maximum level does not need to be monitored.

Of course, another temperature sensor may also be arranged in the region of a (critical) upper fill level (maximum fill level). If, during the filling of the storage container, the control device now determines on the basis of the temperature measurement that said wall region on which the temperature sensor is located is at or above the upper filling level, this adjusts the liquid supply into the storage container, so that the storage container does not overflow may or otherwise causes damage. This can be z. B. also by appropriate control (closing) of a valve, for. B. a shut-off valve, be at the inlet pipe or the inlet opening. Now even a plurality of temperature sensors are provided, which are arranged in the ready state of the storage container along the direction of gravity, so depending on the distance of the temperature sensors each other even more or less accurately the current level or a level range can be determined.

Is that at least one heating element not already for other purposes, such. B. for heating the liquid in the storage tank, active, it can be activated for the purpose of determining a level information via the control device. After activation of the at least one heating element, the temperature value can then be determined by means of the at least one temperature sensor and the level information can be derived therefrom. After completion of the temperature measurement, the at least one heating element, for. B. until the next temperature measurement, are turned off again.

The liquids can z. As water or hydrous liquids. The above-described liquid storage device according to the invention with storage container and fill level measuring device is preferably used in the sanitary sector and in particular in hot water treatment devices, such as boilers, as they are also described in the context of this invention.

The hot water treatment device may also include a temperature sensor, which has the purpose to determine the temperature of the stored water periodically or continuously. Also, this temperature sensor is attached to the outside of the container wall or room wall analogous to the above-mentioned temperature sensors. Since this temperature sensor should be mounted in a region of the container wall which is as far as possible or as long as possible below the liquid level, in particular below the minimum level, the temperature sensor is preferably in the lower container area and in particular arranged below a lower critical level. Of course, this temperature sensor can be part of the fill level measuring device. The said temperature sensor can, however, also be used independently of a fill level measuring device. The temperature sensor may be of the same type as the one or more temperature sensors of the level gauge.

The one or more temperature sensors for determining a level information or for measuring the temperature of the liquid in the storage container can in principle also be attached to the inside of the container wall or room wall, e.g. glued on, be. In this case, they measure the ambient temperature, which is the temperature of the tank wall, the liquid or a temperature between the two temperatures mentioned. Since the temperature sensors in the storage space are exposed to progressive calcification and increased corrosion and therefore can inaccurately measure or fail over time, the former solution with temperature sensors mounted on the outside is preferred.

The method for determining fill level information is characterized in that the data processing device compares the respectively measured temperature value with a comparison value, and derives therefrom the information that the wall area of the container wall on which the temperature was measured at or at the time of the measurement. located below or above the level.

The hot water treatment device described above and in the figures again finds application in a sanitary device, such as bidet or water closet, in particular in a water closet with a Unterduscheinrichtung, wherein the hot water treatment device is used for generating hot water for the Unterduscheinrichtung. Other applications in sanitary engineering, such. B. Warm water treatment for households (kitchen, bathroom, etc.) are also conceivable. The invention now also includes, in connection with the hot water treatment device, a water closet, comprising a toilet bowl and a sub-shower device, and containing a hot water treatment device for heating a cleaning liquid, in particular water, for the under-shower device. The water closet is characterized in that the hot water treatment device is a hot water treatment device according to the invention as described above. The Unterduscheinrichtung preferably has a, in the ready state in the toilet bowl projecting shower arm. The shower arm is preferably to the middle of the toilet bowl every now and then from this way off and retractable or extendable and einschwenkbar.

The third object is achieved by a mounting assembly for a sanitary device, such as bidet or water closet, in particular for a water closet with Unterduscheinrichtung solved. The assembly assembly is characterized in that it comprises a hot water treatment device, in particular a hot water treatment device according to the invention as described above, a water pump, in particular a rotary vane pump according to the invention as described above, and a mixing device, all on a common mounting body, in particular on a mounting plate, are attached. The assembly module can now be fastened to the water closet via the mounting body.

The mixing device suitably comprises a mixing valve, by means of which hot water, which is supplied from the hot water treatment device, and cold water, which, for. B. is fed from a cold water line, mixed water is mixed by a certain temperature. Cold water here means water, which has a lower temperature than the hot water fed from the hot water treatment facility. The valve can z. B. include a slider element which is moved by a servomotor, so that the passage through the cold and / or hot water line changed and thus the mixing ratio is changed. In a preferred further development, a temperature sensor can be attached to the outside of the pipe wall at the cold water supply line, for B. glued, which measures the temperature of the pipe wall and thereby indirectly the temperature of the tap water. Together with a temperature sensor on the outside of the container wall of the hot water treatment device, as described above, which measures the temperature of the container wall in the filling and thus indirectly the storage water temperature, an associated control device can now calculate and set the correct mixing ratio according to the specification of a certain mixed water temperature. The controller now controls the mixing valve for one or both water supplies, eg. As the slide element, so that the correct mixing ratio is ensured with the predetermined mixing water temperature. The control device controls, for example, the servomotor, which moves the slider element.

The temperature sensors mentioned can be of the same design as the temperature sensors already described above in connection with the hot water treatment device or the liquid storage device. So that the temperature of the cold water is detected as accurately as possible, the conduit wall consists at least in the measuring section of a thermally highly conductive material, eg. As metal and preferably copper or brass.

The method and associated means for producing mixed water of a particular temperature may also be considered as an independent invention. The associated (sanitary) device comprises at least one hot water treatment device, a cold water supply and a mixing device with a mixing valve for mixing water, which is fed via a hot water supply with hot water from the hot water treatment device and the cold water supply with cold water. The Of course, mixing device also includes an outlet for the mixed water. Furthermore, the device contains a control device for controlling the mixing valve. In this case, the hot water treatment device preferably corresponds to a hot water treatment device according to the invention as described above, with or without a fill level measuring device according to the invention, as has been disclosed in connection with the liquid storage device.

The control device for controlling the mixing water treatment in the mixing device, for controlling the water level in the storage tank of the hot water treatment device based on level information, and for controlling the outlet of hot water from the storage tank, may be a single control device or may be a plurality of control devices.

Thanks to the inventive device and method for the treatment of mixed water of a certain temperature has the advantage that z. B. can be dispensed with the use of thermostats.

The mounting assembly according to the invention finds particular use in a sanitary device, such as bidet or water closet, especially in a water closet with a Unterduscheinrichtung.

The invention also includes, in connection with the assembly assembly, a water closet containing a toilet bowl and a shower unit, and containing a hot water treatment device for heating cleaning water for the Unterduscheinrichtung, a mixing device for mixing hot water and a water pump for conveying the cleaning water to Unterduscheinrichtung or to the shower arm. The water closet is now distinguished by the fact that the hot water treatment device, the water pump and the mixing device are designed as a mounting assembly according to the invention as described above. The under-shower The device preferably has a shower arm projecting into the toilet bowl in the ready-to-use state. The shower arm is preferably to the middle of the toilet bowl every now and then from this way off and retractable or extendable and einschwenkbar. In a preferred embodiment of the invention, a distribution device which z. B. distributing valves, provided as part of the mounting assembly. The distribution device is also mounted on the mounting body and / or connected to the other units of the mounting assembly. The distribution device is designed to forward the mixed water to different functional units for different uses. For example, the distributor may have three line outputs. Via a first line outlet pressurized water is used to trigger the toilet flush. Via a second line outlet, pressurized mixed water for body cleansing is passed to the under-shower device, in particular to the shower arm. About a third line output pressurized water via a separate line to Unterduscheinrichtung for the purpose of mixing with a disinfectant and for the purpose of subsequent disinfection of components of the Unterduscheinrichtung, in particular the shower arm out. The distribution device may have one or more line inputs. Thus, a line input can be provided for each line output. Mixing devices and distribution facilities as well as boilers and water pumps to build up a water pressure are known in the context of water closets as far as in the prior art and z. B: described in CH 698 388 Bl and WO 2006/079231. The individual units are z. B. connected to each other in particular via lines, that in the boiler treated hot water can flow to the mixing device, and fed from there as mixed water to the water pump and pressurized and then passed to the distribution device. The mounting assembly is preferably mounted over the mounting body to an adapter device attached to the water closet. This adapter device may be one or more adapter body in the form of adapter plates or metal castings, which z. B. via adhesive or screw at a suitable location, preferably the side of the toilet bowl, are attached to the water closet. However, it may also be provided that the mounting body directly on the water closet, z. B. via a screw, is attached.

Incidentally, the mounting body can be designed in one or more parts. So this z. B. consist of a single or multiple sheets. The individual parts of the mounting body may be interconnected or independent of each other or a combination thereof. In the latter case, the assembly assembly by connections, for. B. line connections, between hot water treatment device, water pump and mixing device, or distributor, held together. It is not mandatory that all units of a mounting assembly enter into a direct connection with the mounting body, provided that these units are stable with other units and thus indirectly connected to the mounting body.

WAYS FOR CARRYING OUT THE INVENTION

The subject matter of the invention will be explained in more detail below on the basis of preferred exemplary embodiments, which are illustrated in the accompanying drawings. Each show schematically:

Figure 1 shows a cross section through a rotary vane pump;

Figure 2 is an exploded view of a rotary vane pump according to the invention; FIG. 3 shows a first embodiment of a hot water treatment device according to the invention;

FIG. 4 shows a second embodiment of a hot water treatment device according to the invention;

FIG. 5 shows a mounting assembly according to the invention;

FIG. 6 shows the assembly according to the invention according to FIG

Water closet mounted;

Figure 7a perspective front view of a mounted, but still open

Rotary vane pump according to Figure 2;

FIG. 7b shows a cross section through a mounted and closed rotary vane pump according to FIG. 2;

Figure 8a, 8b perspective views of a boiler base unit.

The reference numerals used in the drawings and their meaning are listed in the list of reference numerals. Basically, the same parts are provided with the same reference numerals in the figures.

With the rotary vane pump 1 shown schematically in Figure 1 in cross-sectional view, the operation of such a pump will be shown. The rotary vane pump 1 comprises a stator housing 5, each having an inlet opening 3 and an outlet opening 4 arranged on the circumference. The stator housing 5 is designed cylindrically here. Furthermore, the rotary vane pump 1 includes a rotatably mounted in the direction of rotation S2 rotor 9, which is also cylindrical and is driven by an electric motor (not shown). The circular-cylindrical interior of the stator housing 5 is arranged eccentrically with respect to the rotor 19 and thus with respect to the drive axis, so that (viewed in the rotor rotation direction S2) between inlet 3, via which water flows into the rotary vane pump 1 (El), and outlet opening 4, via which Water is pumped out of the rotary vane pump 1 (AI), and between the stator 5 and the rotor 9, a pump chamber 10 is formed, which is substantially greater than the (in the direction of rotor rotation S2 considered) subsequent space between the outlet 4 and inlet port 3, which is also bounded by the stator housing 5 and rotor 9. The rotor 9 includes radially arranged slot-shaped guides 2, which record plate-shaped rotary valve 8, which are freely movable in the radial direction. By the centrifugal force of the rotating rotor 9 and possibly by supporting spring elements (not shown), the rotary valves are pushed radially outwardly during operation until they rest with their free end faces on the inner wall of the stator 5 and so the pump chamber 10, in at least one, preferably subdivide several delivery chambers 6. The pumping process now takes place via the rotary valve 8 which moves along with the rotor 9 in the direction of rotation of the rotor S2 and consequently also with moving chambers 6, which pump the entrained water from the inlet opening 3 to the outlet opening 4, building up a delivery pressure. Since the space (viewed in the rotor rotation direction S2) between outlet opening 4 and inlet opening 3, as mentioned, is comparatively small or even non-existent, no or substantially less water is returned to the inlet opening 3. That is, all or at least most of the water guided through the pump chamber 10 is discharged through the outlet opening. As already mentioned, rotary vane pumps 1 and the associated operating principle have been known for some time from the prior art.

FIG. 2 and FIGS. 7a and 7b now show an embodiment of a rotary vane pump 11 according to the invention, which works according to the basic principle shown in FIG. The rotary vane pump 11 includes an electric motor 20, which is housed in a circular cylindrical motor housing 33 and has a corresponding power supply 22. The electric motor 20 is connected to a circular-cylindrical end face 28 with a multipart pump unit 29. From this end face 28 protrudes an extended drive shaft 32 of the electric motor 20, hereinafter referred to as wave extension 23. The Components of the pump unit 29 are assembled in the order described below in the axial direction W, starting from the electric motor 20. The pump unit 29 comprises first a kreisscheibenfbrmige adapter plate 24 which on the end face 28 of the motor housing 33, z. B. via screw, is attached. The adapter plate 24 includes an opening through which the shaft extension 23 is guided. To the adapter plate 24, a likewise circular-cylindrical stator housing is mounted with its outer circumference concentric with the motor housing 33 and the adapter plate 24. Concentric with said shaft breakthrough, a circular recess 26 is provided in the adapter plate 24 on the side facing the rotor 19, in which a concentric, circular Anformung on the stator 15 engages and so centered adapter plate and stator housing against each other. The stator housing 15 also has on the drive side a circular, concentric recess into which a shaft seal 25, preferably a positive fit, is inserted. The shaft seal 25 seals the extended drive shaft 32 to the stator housing 15 and the pump chamber down.

The stator housing 15 has an inlet opening 13 and an outlet opening 14. On the wave extension 23, a likewise aligned in the axial direction W shaft piece 27 is applied, which forms the rotor shaft. The shaft piece 27 may, for. B. shrunk onto the wave extension 23. In the circular cylindrical interior of the stator housing 15, a circular-cylindrical rotor 19 is embedded with a plurality of radially arranged slot guides 12 for the plate-shaped slide elements 18. The rotor 19 is rotatably connected to the shaft piece or the rotor shaft 27. Instead of the shaft piece 27, the rotor 19 may also be connected directly to the shaft extension 23 (not shown). On the rotor 19 facing the end face of the, preferably circular cylindrical shaft portion 27, a pin member 30 is arranged. The pin member 30 now engages in a corresponding opening 31 in the rotor 19 and is rotatably connected to the rotor 19. The torque is now over the pin member 30th transmitted eccentrically to the rotor 19. As a result, the risk of slippage between the rotor shaft 27 and rotor 19, as it can occur in a centrally transmitted torque avoided. The components of the pump unit 29 are now designed so that the axis of rotation of the rotor 19 and thus the rotor 19 itself is arranged eccentrically relative to the circular cylindrical cavity of the stator housing 15. This is z. B. achieved by an eccentric design of the circular cylindrical cavity of the stator housing 15 relative to the axis of rotation W of the drive shaft and the circular cylindrical outer periphery of the stator housing. Between rotor 19 and stator housing 15, in the area located farther from the eccentric axis, a gap-shaped pump space 36 is formed, which is divided by the slide elements 18 into individual chambers 37. The pump unit or the stator housing is closed at the end facing away from the electric motor 20 front side of the stator housing 15 via a circular disk-shaped cover plate 21. To the inlet 13 and outlet port 14 corresponding lines are connected (not shown). The motor housing 33, the adapter plate 24, the stator housing 15 and the cover plate 21 are connected to each other via in each case the same screw. For this purpose, in each case screws are guided through passages 34, 35 aligned parallel to the axis of rotation in the cover plate 21, in the outer wall of the stator housing 15 and the adapter plate 24, and engage in threaded bores in the motor housing, where they are screwed. The said components can of course be connected to each other via different screw. The rotary vane pump according to Figure 2 forms in the assembled state a kreiszylinderformige unit with a uniform diameter. However, this is not a mandatory feature. FIG. 3 shows an embodiment of a boiler 101 according to the invention for the treatment of hot water. The boiler 101 comprises a storage tank 117, which is made of copper, in particular copper sheet. The storage tank 117 forms a receiving space or storage space 118 for storing water, which is represented here by the indicated current water level 115. On the outer circumference of the storage container, a surface heating element 103, preferably in the execution of a silicone heating mat, fitted snugly. The surface heating element 103 may, for. B. be created like a sleeve around the storage container 117. The surface heating element 103 is flexible and has a main body 108 made of plastic, preferably of a silicone material. In the main body 108 heating conductors 109 are embedded electrically isolated. The heating conductors 109 are heating wires made of metal or heating foils. The heating conductors 109 are supplied with electrical power via a power supply 116. The heating conductor 109 heats the surface heating element 103 in a planar manner. The heat energy is transferred flat to the adjacent container wall 114 of heat-conducting copper. The thus heated copper container 117 in turn heats the water stored therein, which is in contact with the container wall 114. Since copper as well as other metals which can be used as a container material have excellent heat conduction properties, the entire storage container 117 is uniformly heated, not only in the area where the surface heating element 103 is mounted. The storage water is now heated over the container wall over a large area, which, in contrast to heating coils a rapid and uniform heating of the storage water allows, at the same time comparatively low operating temperature of the surface heating 103rd The large-scale warming up of the storage water is thus achieved on the one hand by a flat heat input via the surface heating element 103 and on the other hand by the additional distribution of the heat introduced in the container wall 114 itself. The surface heating element 103, takes up very little space and is therefore optimally suited for the intended use.

In the storage tank 117, a minimum low level 119a of the storage water is defined, upon reaching the storage tank 117 must be refilled with water so that enough hot water is available for the next use. At the level of this minimum depression 119 a, a first temperature sensor 113 a is attached to the outside of the container wall 114, which measures the temperature of the container wall in the sensor region continuously or on inquiry and transmits it to a control device 102 via a communication line 11 a. Depending on whether the temperature sensor 113a is now below the water level or above or below the minimum low level 119a above the water level, a lower or higher, ie different temperature is measured. The control unit 102 evaluates the temperature measured values and uses comparison values to determine the filling level information as to whether the temperature sensor 113a is now below or above the current water level. If the control device 102 determines that the minimum low point 119a has been reached or fallen below, it opens an inlet valve 106 in the region of the inlet opening or the inlet line 104 to the storage container 117 via a control line 110.

In the storage tank 117, a maximum high level 119b of the storage water is also defined, upon reaching which the supply of water into the storage tank 117 must be stopped. At the height of this maximum high level 119b, a second temperature sensor 13b is attached to the outside of the container wall 114, which constantly or on request measures the temperature of the container wall in the sensor area and transmits it to a control device 102 via a communication line 11b. Depending on whether the temperature sensor 113b now above the water level or when reaching or exceeding the maximum high level 119b above the water level, a higher or lower, ie different temperature is measured. The control device 102 evaluates the temperature measured values and uses comparison values to determine the fill level information as to whether the temperature sensor 113b is now below or above the current water level. If the control device 102 determines that the maximum high level 119b has been reached or exceeded, it closes an inlet valve 106 in the area of the inlet opening or the inlet line 104 to the storage container 117 via a control line 110, so that the supply of water is stopped.

The control device 102 also controls, via a corresponding control line 112, an outlet valve 107 arranged in the outlet opening or in the outlet line 107 of the storage container 117 for dispensing hot water to a consumer, e.g. B. to a mixing device.

FIG. 4 shows a continuous flow heater 130, which is heated according to the same principle as the boiler described in FIG. The water is not stored here but passed through a heated pipe 136 or piping system. The surface heating element 131 is here cuff-like and fitted snugly around the conduit 136. The conduit 136 is z. B. of copper or other heat-conducting metal. Analogous to the boiler described above, the surface heating element 131 heats up the conduit wall 132 of the conduit 136, which delivers the heat to the passing water. Analogously to FIG. 3, the surface heating element 131 comprises a base body 133 and heating conductors 134 embedded therein. The surface heating element 131 is supplied with power via an electrical line 135. For further description details see description of Figure 3. The water is now heated wall during flow through the Lei wall 132. It can be provided as an alternative solution, a piping system (not shown), which expands in turns in a plane. On both sides of these levels, a surface heating element is arranged, which abuts the pipes and forms a sandwich structure with intermediate piping system. In this case, the surface heating element is not full, so cuff-like, applied to the pipes. The surface heating element is of the nature set forth in this specification. The water now circulates through the turns of the piping system leaving enough time to heat the water.

FIG. 5 shows a mounting assembly 61, which has a boiler 64, a mixing device 66, a water pump 63, comprising an electric motor 67 and a pump unit 68, and a distributor 65. The boiler 64 is preferably designed in the manner described above according to the invention. Also, the water pump 63 is preferably designed in the manner described above according to the invention. The boiler 64, the mixing device 66, the water pump 63 and the distributor 65 are mounted as an assembly on a mounting plate 62. The assembly assembly 61 is now on the mounting plate 62 on the outside of a water closet 51 with Unterduscheinrichtung 52, in particular on the outside of the associated Klosettschlüssel 53 and below the bowl edge 54 attached (see Figure 6).

The boiler 64 has an inlet opening, to which a water supply line 71 is connected, through which z. B. tap water is introduced into the storage space. The boiler 64 further has an outlet opening to which an outlet line 72 is connected, which leads hot water to the inlet opening of the mixing device 66. The mixing device 66 includes a second inlet opening for cold water or fresh water, which is also usually tap water, which is supplied via a supply line 73. In the mixing device 66, which has a mixing valve (not shown), the Water mixed to a desired temperature. The mixed water temperature is controlled via a corresponding control device, which is connected to the mixing device 66. The mixed water is now fed via an outlet opening in the mixing device 66 via a line 77 to the inlet opening of the water pump 63. The water pump 63 now builds up a corresponding line pressure, by means of which the mixed water is conveyed to a mixed water distribution device 65 via a corresponding outlet opening. The mixed water distribution device 65 contains corresponding distribution valves, which can be controlled via a control device, and the mixed water via several outputs 74, 75, 76, here a total of three outputs, to different consumers. In the present example, the mixed water from the water pump 63 is already supplied via three separate inputs, which correspond to the corresponding outputs 74, 75, 76, the mixed water distribution device 65. However, it can also be provided that the mixed water is supplied via fewer inputs, in particular only via an input of the mixed water distribution device 65, and is distributed in this as needed to one or more of the preferably three outlets. For this purpose, the mixed water distribution device 65 is connected to a corresponding control device via which the distribution valves are controlled (not shown). Via a first line outlet 74 pressurized mixed water is used in a known manner to trigger the toilet flush. About the second line output 75 pressurized mixed water for cleaning the toilet user to Unterduscheinrichtung, in particular led to the shower arm. About the third line output is further pressurized mixed water via a separate line to Unterduscheinrichtung in order to mix desselbigen with a disinfectant and for the purpose of subsequent disinfection of components of the Unterduscheinrichtung, in particular the shower arm out.

As already indicated, FIG. 6 shows the assembly module 61 described in FIG. 5 in the assembled state on the toilet seat 51. The assembly module 61 is For this purpose, on the mounting plate 62 below the edge 54 of the toilet bowl 53 and laterally attached to the outside of the toilet bowl 53. The Unterduscheinrichtung 52 of course contains other components, which are also mounted in the area of the assembly assembly 61, but at this point not shown in the figures.

FIGS. 8a and 8b show a boiler main body 91 without a heating device. The main body 91 comprises a boiler container 96 made of copper sheet. In the boiler tank leads an inlet line 92, via which cold tap water can be admitted into the boiler room. Further, an outlet pipe 93 for discharging hot water leaves the boiler tank 96 in its under-area. The hot water discharged through the exhaust duct 93 is supplied to a pump (not shown). Moreover, a vent 94 is provided in the region or on the side of the inlet line 92. Furthermore, a safety thermostat 95 is provided as overheating protection on the side of the outlet line 93 or in the region of the outlet line 93. The boiler container 96 is adapted in its shape to him available to the toilet body assembly space. The boiler container 96 is therefore rather flat and formed with a chamfered container wall.

LIST OF REFERENCE NUMBERS

Rotary vane pump 35 Mounting holes Slotted guide 36 Pump chamber / chamber

Inlet opening 51 Water closet with

Outlet opening under shower device

Stator housing 52 part of the Unterduscheinrichtung

Delivery chamber 53 Toilet bowl

Rotary valve 54 bowl edge

Rotor 61 mounting assembly

Pump room 62 Mounting plate

Rotary vane pump in 63 water pump

Exploded view 64 boiler

Guides 65 Distributor

Inlet opening 66 mixing device

Outlet opening 67 electric motor

Stator housing 68 Pump unit

Rotary valve 71 inlet line

Rotor 72 outlet line / first

Electric motor inlet line

Cover 73 second inlet line

Power supply 74 first outlet

extended drive shaft 75 second outlet

Adapter plate 76 third outlet

Shaft seal 77 Outlet line / inlet line

Recess 78 outlet conduit / inlet conduit

Wave 81 Supply & Control Line

Front side 82 Supply & control line

Pump Unit 83 Supply & Control Line

Pin element 84 Supply & Control line

Opening 91 boiler body

Drive shaft 92 inlet line

Motor housing 93 outlet line

Mounting holes 94 Vent 95 Safety thermostat 117 Storage tank

96 container wall 118 storage wall

101 boiler 119a minimum low

102 control device 119b maximum high level

103 Panel heater 130 Instantaneous water heater

104 inlet duct 131 surface heating element

105 outlet conduit 132 conduit wall

106 Inlet valve 133 Plastic body

107 outlet valve 134 heating conductor

108 Plastic body 135 Power supply

109 Heating conductor 136 Cable

110 Control line 137 Water receiving space

11 la..b communication line

112 control line 51 pumping direction

113a..b Temperature sensors 52 Direction of rotation of the rotor

114 Container wall El inlet

115 water level AI outlet

116 electrical line W axis of rotation of the drive shaft

Claims

PATENT CLAIMS

Rotary vane pump (11) for pumping a liquid, in particular for a sanitary device, such as a bidet or water closet, comprising an electromotive drive unit (20) with a drive shaft (32), in the axial direction of the drive shaft (32) directly or indirectly to the drive unit (20) adjoining the stator housing (15) having an inlet (13) and outlet (14), a rotatably mounted in the stator housing (15) on a rotor shaft (27) rotor (19) with radially arranged guides (12), and in the Guides (12) containing radially movably mounted rotary valves (18) which subdivide the space (10) between the stator housing (15) and rotor (19) into chambers during operation, characterized in that the drive shaft (32) of the drive unit (20) to the rotor (19) toward a shaft extension (23) is formed, and the rotor shaft (27) rotatably coupled to the shaft extension (23), wherein the rotor (19) on the rotor shaft (27) is cantilevered and the Roto R shaft (27) via the drive shaft (32) is mounted on one side in the drive unit (20).

Rotary vane pump according to claim 1, characterized in that the rotor shaft (19) is part of the shaft extension (23) or the rotor shaft (19) is a separate, with the shaft extension (23) rotatably connected, preferably a shrunk onto this component.

Rotary vane pump according to claim 1 or 2, characterized in that the rotary vane pump (11) in the axial direction (W) over the shaft extension (23) pushed and with the drive unit (20) connected to the adapter plate (24), to which the stator housing (15 ) is attached. Rotary vane pump according to one of claims 1 to 3, characterized in that between the drive unit (20) and the rotor (19) has a shaft seal (25) is arranged, which the drive shaft (32) relative to the space (10) between the stator housing (15). and rotor (19) seals, and the shaft seal (25) on the rotor side preferably in a recess (26) in the adapter plate (24) is recessed.

Rotary vane pump according to one of claims 1 to 4, characterized in that on the stator housing (15) on the, the drive unit (20) opposite the end face, a cover (21) is mounted.

Use of a rotary vane pump according to one of claims 1 to 5 in a sanitary device, such as bidet or water closet (51), in particular in a water closet with a Unterduscheinrichtung.

Water closet (51), containing a toilet bowl (53) and a Unterduscheinrichtung (52), and containing a pump for pumping a supplied in a supply line cleaning liquid, in particular water to the shower arm, characterized in that the pump is a rotary vane pump (1 1) after one of claims 1 to 5 is.

Hot water treatment device (101), in particular for a sanitary device, such as bidet or water closet, with a water intake unit (1 17, 136) with an inlet (104) and outlet opening (105), and the water intake unit (1 17, 136) at least one Water receiving space (1 18, 137) is formed, and with an electric heater, by means of which in the water receiving space (1 18, 137) located water can be heated, characterized in that the water absorption unit (117, 136) has a chamber wall (114, 132) pointing towards the water receiving space (118, 137) with thermally highly conductive properties, which is arranged in such a way that it communicates with the water receiving space (118). Water is thermally conductively in contact, and on the water receiving chamber (118, 137) facing away from the room wall (114, 132) an electric surface heating element (103, 131) is arranged so that this in a planar, thermally conductive contact with the Room wall (114, 12) is.

A hot water boiler according to claim 8, characterized in that the water intake unit (136) is a duct portion through which the water can circulate, and the water receiving space (137) is a duct cavity formed by the duct portion, or the water receiving unit (117) Is storage container, and the water receiving space (118) is formed by the storage container storage space.

10. hot water treatment device according to claim 8 or 9, characterized in that the surface heating element (103, 131) has a flat base body (198, 133) made of a plastic, such as silicone, polyimides or polyester, and a flat heating conductor (109, 134) includes, which is embedded on all sides electrically insulated in the flat body (198, 133).

11. Hot water treatment device according to one of claims 8 to 10, characterized in that the hot water treatment device (101) comprises a control device (102) and a storage container (1 17) with a storage space (118) and a room wall (1 14), and inside or on the outside of the room wall (114) at least one temperature sensor (113a) is mounted, for determining the ambient temperature, in particular the temperature of the space wall (114) in the region of the temperature sensor (113a), and the Control device (102) is designed so that it is able to derive from the measured temperature values in each case a level information that can be used to control the water supply into the water tank (117).

12. Use of a hot water treatment device according to one of claims 8 to 1 1 in a sanitary device, such as bidet or water closet, in particular in a water closet with a Unterduscheinrichtung. 13. Water closet (51), comprising a toilet bowl (53) and a Unterduscheinrichtung, and containing a hot water treatment device (101) for heating cleaning water for the Unterduscheinrichtung, characterized in that the hot water treatment device (10) a hot water treatment device according to any one of claims 8 to 1 1.

14. Liquid storage device, comprising a storage container with a container wall, which is in thermal conductive contact with a stored in the storage space of the storage container liquid, and containing a level measuring device for determining a level information, characterized in that the container wall is formed thermally conductive, and at least one heating element is provided for heating the container wall, and at least one inside or outside of the container wall in the filling region of the storage container and in the region of influence of the at least one heating element

Temperature sensor for measuring the ambient temperature, in particular the temperature of the container wall, and a data processing Device is provided, which is able to derive a level information based on the temperature measurements.

15. A method for determining a fill level information in a liquid storage device according to claim 14, characterized in that temperature measurements are determined by the at least one temperature sensor, and the data processing means the Temperaturmess values each with at least one comparison value compares and from the comparison result a level information derives.

16. assembly assembly (61) for a sanitary device, such as bidet or water closet (51), in particular for a water closet with Unterduscheinrichtung, characterized in that the mounting assembly (61) has a hot water treatment device (64), in particular a hot water treatment device according to one of claims 8 to 11, a pump (63) for pumping water, in particular a rotary vane pump according to one of claims 1 to 5, and a mixing device (66) which are mounted as an assembly on a mounting body (62), wherein the assembly assembly (61) via the mounting body (62) on the water closet (51) can be fastened.

17. Use of a mounting assembly (61) according to claim 16 in a sanitary device, such as bidet or water closet (51), in particular in a water closet with a Unterduscheinrichtung.

18. A water closet (51) comprising a toilet bowl (53) and a Unterduscheinrichtung, and containing a hot water treatment device (64) for heating water for the Unterduscheinrichtung, a water pump (63) for pumping water to the Unterduscheinrichtung, and a Mixing device (66) for mixing hot water from the hot water treatment device (64) with cold water, characterized in that the hot water treatment device (64), the water pump (63) and the mixing device (66), and preferably also a Mischwasserverteilein- direction (65) , are designed as a mounting assembly (61) according to claim 16.

19. water closet according to claim 18, characterized in that the mounting assembly (61) via the mounting body (62) is attached to an attached to the toilet seat adapter device, preferably attached to an adapter plate.

20. water closet according to claim 18 or 19, characterized in that the mounting assembly (61) outside the side of the toilet bowl (53) and below the bowl edge (54) is attached to the toilet.

21. Sanitary device for producing mixed water of a certain temperature, comprising a hot water treatment device with a storage container, in particular according to one of claims 8 to 1 1, a cold water supply and a mixing device with an outlet opening for the mixed water, and with a mixing valve for mixing water different Temperature, wherein the mixing device via a hot water supply hot water from the hot water treatment device and the cold water supply cold water is fed, and containing a control device for controlling the mixing device, characterized in that the outside of the storage container, a first temperature sensor for measuring the temperature of the container wall in the filling area and outside the cold water supply line is provided with a second temperature sensor for measuring the temperature of the conduit wall, and the control device is designed such that that this is able to determine the mixing ratio for the mixing device for generating mixed water of a certain temperature on the determined temperatures of the container and pipe wall.

22. A method for the treatment of mixed water means of a device according to claim 21, characterized in that by means of the first temperature sensor, the temperature of the container wall and by means of the second temperature sensor, the temperature of the conduit wall is determined, and the control means based on the temperature of the container wall information about the temperature of the storage water and based on the

Temperature of the conduit wall derives information about the temperature of the cold water and determines the mixing ratio for generating mixed water of a certain temperature, and the mixing ratio is set in the mixing device via the control device.