The invention relates to a control device comprising a control element that can be rotated on a first functional level, an electronic controller, an electric power supply, and a base for mounting the control device in accordance with the preamble of the independent claim 1. Said control device is designed to control plumbing appliances comprising a water discharge point and an electronically controlled mixing valve that has a cold water connection and a hot water connection. Thereby, the flow of the water discharged from the water discharge point can be changed by rotating the control element.
Electronic controllers for the control of plumbing appliances with a water discharge point are known in accordance with the state of the art. Designated as “plumbing appliances” in connection with this invention are e.g. washbasins, kitchen sinks, showers, bath tubs and the like, as these are used for example in households, public buildings and tourist facilities such as wellness hotels and the like. “Water discharge points” are e.g. fittings, water taps, water outlet valve arrangements, water mixing valves and the like, as these also have been known for a long time. Electronic controllers for the discharge of water on plumbing appliances are known e.g. from the patent U.S. Pat. No. 7,107,631 B2 or from the patent EP 1 601 841 B1 of the current applicant. These documents disclose a device for contactless control of the discharge of water resp. a method for controlling the inflow of water into a plumbing appliance.
Additional control devices for the control of plumbing appliances with a water discharge point are known in accordance with the state of the art. Control devices of this type can be based on a purely mechanical principle of action (see e.g. a single-lever mixer known from patent application EP 0 818 587 A2 or the long-known so-called “three-hole faucet”). Also the combination of mechanical principles of action with an electronic proximity switch for opening the flow of water when a person approaches a plumbing appliance is known (see e.g. EP 0 904 469 B1, EP 0 882 848 B1 and EP 1 120 498 B1). Furthermore, an optical display of the current water temperature discharged is known in accordance with the state of the art in the form of one or more light emitting diodes in combination with a mechanical single-lever mixer (see DE 100 42 722 A1). However, control devices of this type can also be based on an electronic principle of action, wherein sensor arrays (see e.g. DE 103 32 708 B3), keypads (see DE 38 12 736 C1) or a two-dimensional control surface (see WO 2006/061657 A1) with a touch-sensitive matrix (within the meaning of a “touchpad”) or with a proximity-sensitive matrix are used to select a desired flow of water and/or a desired water temperature.
In most cases, the known purely mechanical control devices provide insufficient handling comfort. Thus, the effort needed to open the water taps of a three-hole faucet can be too great for users of very old age and it can be quite difficult to adjust a certain flow of water or a desired temperature. Especially the control of a single-lever mixer that is movable on two different levels can cause demands that are too high for the fine motor functions of the users. Known electronic control devices also have disadvantages; thus, the complexity of a multitude of keypads can demand too much from the user, require too much time for setting the desired flow of water and the desired temperature, and only be difficult to control under bad light conditions in particular. In addition to the mostly complex and costly design of these (see DE 38 12 736 C1 and WO 2006/061657 A1), electronic control devices can also demand capabilities with regard to fine motor functions that are to high for elderly users (see e.g. DE 103 32 708 B3). The objective of this invention is to propose an alternative control device for controlling the flow of the water and the temperature of the water on plumbing appliances comprising an electronically controlled mixing valve as well as a cold water connection and a hot water connection that is easy and virtually effortless to use.
This objective is fulfilled with the features of the independent claim 1 by proposing a control device comprising a control element that can be rotated on a first functional level, an electronic controller, an electric power supply, and a base for mounting the control device, and which is designed to control plumbing appliances comprising a water discharge point and an electronically controlled mixing valve that has a cold water connection and a hot water connection, wherein the flow or the temperature of the water discharged from the water discharge point can be changed by rotating the control element. The control device according to the invention is characterized in that a second functional level can be assigned to the control element by means of an electronic or electric pulse, said second functional level being mechanically identical to the first functional level, and wherein the temperature or the flow of the water discharged from the water discharge point can be changed by rotating the control element when the second functional level has been assigned. Other additional and inventive features result from the dependent claims and the combinations of these.
The advantages of the control device according to the invention comprise:
- The control of a water discharge point comprising an electronically controlled mixing valve that has a cold water connection and a hot water connection and which is equipped with the control device according to the invention is simplified.
- Thanks to the simplicity of the control device, such a water discharge point can be controlled quickly, safely, intuitively and reproducibly.
- The effort for cleaning the control device is reduced to a minimum, as this is provided only with simple and easily to be cleaned surfaces.
- Thanks to the simple movements, a water discharge point of this type is feasible even with reduced human fine motor functions and moreover virtually effortless to use.
- According to a preferred embodiment, the control device can be arranged flexibly and optimally for the current user.
- The entire control is performed using a single knob, to which two functional levels can be assigned, whereby the flow of the water or the temperature can be adjusted on the first level and the temperature or the flow of the water discharged from the device on the second level.
- The desired parameters on the assigned first and second level are in any case adjusted independently from the angle or position.
- The shift function from one functional level to the other is performed by tipping on a control button that is positioned next to or inside the rotating part or is preferably the rotating part itself.
The water saving device according to the invention shall now be explained in more detail on the basis of exemplary schematic drawings, which do not limit the scope of this invention. Thereby, the figures show:
FIG. 1 a top view of a kitchen sink comprising a water discharge point and a control device firmly mounted on the faceplate of the kitchen combination;
FIG. 2 a top view of a washbasin comprising a water discharge point and a control device firmly mounted on the washbasin;
FIG. 3 a front view of the kitchen combination shown in FIG. 1 comprising a kitchen sink and a water discharge point as well as a control device firmly mounted on the faceplate of the kitchen combination;
FIG. 4 a partial section through a washbasin comprising a water discharge point and a control device firmly mounted to the wall bearing the washbasin;
FIG. 5 views of different embodiments of the control device according to the invention comprising a switching element, wherein:
FIG. 5A shows a first embodiment comprising a control element that can be rotated and a switching element that is positioned on a firm base that has an optical display device placed on top, and which can assign a second functional level to the control element;
FIG. 5B shows a second embodiment comprising a switching element that is separated mechanically from the control element that can be rotated and has a connected optical display device, and which comprises a touch sensor for assignment of the second functional level to the control element that can be rotated;
FIG. 5C shows a third embodiment comprising a switching element that is separated mechanically from the control element that can be rotated and comprises a touch sensor for assignment of the second functional level to the control element that can be rotated, which is positioned on an invisible base that has an optical display device placed on top;
FIG. 5D shows a fourth embodiment comprising a switching element that is designed as a control element that can be rotated and is positioned on a firm, invisible base that has an optical display device placed on top, and which can assign a second functional level to itself;
FIG. 5E shows a fifth embodiment comprising a switching element that is designed as a control element that can be rotated and has an inserted optical display device, whereby the switching element is separated mechanically from the base;
FIG. 6 a part section through a control device according to the first embodiment, however in the case of which the switching element is not at the same time the control element that can be rotated;
FIG. 7 a part section through a control device according to the second embodiment;
FIG. 8 views of a water discharge point of a kitchen sink and a relevant control device, wherein:
FIG. 8A shows a view of a control device according to the first embodiment, which is mounted to the water discharge point;
FIG. 8B shows a view of a control device according to a sixth and seventh embodiment that can be mounted to the water discharge point and which can be removed from there and positioned practically at random;
FIG. 9 a control device for the water discharge point of a shower, which can be positioned practically at random on a wall thanks to a magnetizable plate under a glass or ceramic plate.
FIG. 1 shows a top view of a kitchen sink 7 comprising a water discharge point 8 and a control device 1 firmly mounted on the faceplate of the kitchen combination. Said control device 1 comprises a control element 3 that can be rotated on a first functional level 2. The control element is preferably designed as rotating part, as this is known as water tap on conventional fittings or also as revolving unit on monobloc mixers of electronically controlled fittings (see e.g. EP 1 120 498 B1). The flow and/or the temperature of the water discharged from the water discharge point 8 can be changed by rotating this control element 3.
The control device 1 furthermore comprises an electronic controller 4, an electric power supply 5, and a base 6 for mounting the control device 1. Thereby, the electronic controller 4 can be installed in the control device 1 or its base 6 as a separate electronic component, such as e.g. a populated circuit. But the electronic controller 4 of the control device 1 can also form part of the electronic controller of the fitting or the water discharge point 8 or the mixing valve 9 as an electronic component, such as a populated circuit or a microchip.
Said control device 1 is designed to control plumbing appliances 7 comprising a water discharge point 8 and an electronically controlled mixing valve 9 that has a cold water connection 10 and a hot water connection 11. As mentioned above, the term plumbing appliances 7 in connection with this invention relates to e.g. washbasins, kitchen sinks, showers, bath tubs and the like.
In accordance with the invention, said control element 3 can be rotated on a first mechanical level resp. a first functional level 2, whereby a second functional level can be assigned to said control element 3 by means of a touching process, i.e. an approximation or touch of the switching element 14 (see e.g. FIG. 6). The first functional level 2 is thereby mechanically identical to the second functional level. The temperature or the flow of the water discharged from the water discharge point 7 (thus the respectively alternative operating parameter in relation to the first functional level) can be changed by rotating the control element 3 when the second functional level has been assigned.
FIG. 2 shows a top view of a washbasin 7 comprising a water discharge point 8 and a control device 1 firmly mounted on the washbasin. As in FIG. 1, a possible position of the electronic controller 4 of the control device 1 is indicated by a dashed arrow.
FIG. 3 shows the front view of the kitchen combination shown in FIG. 1 comprising a kitchen sink 7 and a water discharge point 8 as well as a control device 1 firmly mounted on the faceplate of the kitchen combination.
FIG. 4 shows a partial section through a washbasin 7 comprising a water discharge point 8 and a control device 1 firmly mounted to the wall bearing the washbasin 7. In contrast to the previous figures, in which a control device 1 sitting on the plumbing appliance 7 is shown, this control device 1 here is mounted to the wall bearing the washbasin 7, independently from the mounting of said washbasin.
FIG. 5 shows views of different embodiments of the control device according to the invention.
FIG. 5A shows a first embodiment of the control device 1 according to the invention comprising a control element 3 that can be rotated and a switching element 14 that is positioned on a firm base 6 that has an optical display device 21 placed on top, and which can assign a second functional level to the control element 3. Preferably, said switching element 14 is at the same time also the control element 3 that can be rotated. In accordance with the invention, a second functional level can thus be assigned to said control element 3. In accordance with the first preferred embodiment of the control device 1, said second functional level is mechanically identical to the first functional level 2 of the control element 3 (see FIGS. 6 and 7). In this case, the second functional level is assigned to the control element 3 by means of triggering an electric or electronic pulse. A pulse of this type can be triggered through a touch sensor or proximity sensor. The touch sensor or proximity sensor can be positioned in the control element 3 that can be rotated (see FIG. 5A), however it can also be installed in the fixed base 6 (see FIG. 6).
Also visible in FIG. 5A is an optical display device 21, which preferably rests on the base 6, as shown. This optical display device 21 is designed to display current settings of the control device 1 or the mixing valve 9. The optical display device 21 preferably comprises an RGB LED, as it is known in accordance with the state of the art.
Said RGB LED 21 is connected with the electronic controller 4 of the control device 1 and shows e.g. the flow of cold water from the fitting 8 or the relevant aperture position of the electronically controlled mixing valve 9 for the cold water connection 10 in blue color (see FIGS. 1 and 2).
Said RGB LED 21 is connected with the electronic controller 4 of the control device 1 and shows e.g. the flow of hot water from the fitting 8 or the relevant aperture position of the electronically controlled mixing valve 9 for the cold water and the hot water connection 10, 11 in orange color (see FIGS. 1 and 2). Thereby, the orange light of the RGB LED preferably intensifies at an increasing flow.
Said RGB LED 21 is connected with the electronic controller 4 of the control device 1 and shows e.g. the flow of hot water from the fitting 8 or the relevant aperture position of the electronically controlled mixing valve 9 for the hot water connection 11 in red color (see FIGS. 1 and 2).
Particularly preferred is an RGB LED 21 that is at least partially inserted or cast into an acrylic glass ring 25, which makes the relevant light visible all around, i.e. from all sides.
FIG. 5B shows a second embodiment comprising a switching element 14 that is separated mechanically from the control element 3 that can be rotated and has a connected optical display device, whereby the switching element 14 comprises a touch sensor 15 for assignment of the second functional level to the control element that can be rotated. In accordance with the invention, a second functional level can be assigned to the control element 3. In accordance with the second preferred embodiment of the control device 1, said second functional level is mechanically identical to the first functional level 2 of the control element 3 (see FIG. 7). In this case, the second functional level is assigned to the control element 3 by means of triggering an electric or electronic pulse. Said control device 1 preferably comprises a switching element 14 that has a touch sensor 15. Accordingly, said touch sensor 15 is designed to detect a touch by an operating person and relevant assignment of the second functional level to the control element 3. Especially preferred is a control device 1 of the second embodiment, wherein the switching element 14 is designed firmly mounted and separated mechanically from the control element 3 that can be rotated. An optical display device 21 is preferably affixed to the switching element 14 in this case and does not rotate with the control element 3 designed as rotating part. This optical display device 21 is designed to display current settings of the control device 1 or the mixing valve 9. The optical display device 21 preferably comprises an RGB LED, as it is generally known in accordance with the state of the art and has been described already in connection with FIG. 5A.
FIG. 5C shows a third preferred embodiment comprising a switching element that is separated mechanically from the switching element 14 that can be rotated. Said switching element 14 comprises a touch sensor 15 for assignment of the second functional level to the control element that can be rotated, which is positioned on an invisible base 6 that has an optical display device placed on top. In this case, the switching element 14 is preferably designed as a circular element that is positioned in an appropriately shaped cut-out of the control element 3. Also in this case, the switching element 14 can be designed as a vertically movable switch. It is in any case essential that the switching element 14 or the touch sensor 15 or switch of said switching element is connected operatively with the electronic controller 4 of the control device 1. Said electronic controller 4 is seated, for example, in the base 6 of the control device 1 or straight in the electronic controller of the fitting 8. An optical display device 21 is preferably seated on top of the base 6 in this case and does not rotate with the control element 3 designed as rotating part. This optical display device 21 is designed to display current settings of the control device 1 or the mixing valve 9. The optical display device 21 preferably comprises an RGB LED, as it is generally known in accordance with the state of the art and has been described already in connection with FIG. 5A.
FIG. 5D shows a fourth embodiment comprising a switching element 14 that is designed as a control element that can be rotated and is positioned on a firm, invisible base 6 that has an optical display device 21 placed on top, and which can assign a second functional level to itself. Preferably, said switching element 14 is at the same time also the control element 3 that can be rotated, as this has been described already in FIG. 5A. In this case, however, the control element 3 is designed as a shell that can be rotated and which is pulled down over the base 6 of the control device 1. The optical display device 21 is separated mechanically from the switching element 14 in this case and does not rotate with the control element 3 designed as rotating part. This optical display device 21 is designed to display current settings of the control device 1 or the mixing valve 9. The optical display device 21 preferably comprises an RGB LED, as it is generally known in accordance with the state of the art and has been described already in connection with FIG. 5A.
FIG. 5E shows a fifth embodiment comprising a switching element 14 that is designed as a control element that can be rotated and has an inserted optical display device. Said switching element 14 is separated mechanically from the base 6. Preferably, said switching element 14 is at the same time also the control element 3 that can be rotated, as this has been described already in FIG. 5A. However, in this case the optical display device 21 is integrated in the switching element 14 and rotates with the control element 3 designed as rotating part. This optical display device 21 is designed to display current settings of the control device 1 or the mixing valve 9. The optical display device 21 preferably comprises an RGB LED, as it is generally known in accordance with the state of the art and has been described already in connection with FIG. 5A. In this design example, the optical display device 21 is particularly preferred as numerical display (with or without illumination), as this is also shown in FIG. 9.
It applies for all embodiments of the control device 1 shown that the temperature of the water discharged from the water discharge point 7 can be changed by rotating the control element 3 when the second functional level has been assigned. Naturally, the assignment of the first and the second functional level to the change in the flow or the temperature of the water discharged from the fitting 8 can be exchanged at random. It is thus of an advantage, for example, if the control device 1 of a shower fitting 8 is designed in such a way that the temperature of the water is changed when the control element 3 is turned on the first functional level 2. In the case of a kitchen fitting 8, on the other hand, the first functional level 2 is preferably assigned to changing the flow of the water.
FIG. 6 shows a partial section through a control device 1 according to the first embodiment. The control device 1 comprises a touch sensor 15 for detection of an approximation or touching of the base 6 by means of optical, capacitive or inductive principles of action. The first sensor 15 is preferably designed as a capacitive proximity switch that assigns the second functional level to the control element 3 upon approximation of the base 6. Moreover, said control device 1 comprises a second sensor 17 for mechanical, optical, capacitive or inductive detection of the rotating movement of the control element 3. In this case, said second sensor 17 is designed as firmly mounted Hall sensor that detects the rotary position of the control element 3 in relation to permanent magnets 22 firmly mounted in the co-rotating axis 27 of the control element 3 when said control element is rotated. This information is transmitted to the electronic controller 4 of the control device 1, so that the same can cause the electronic valve control 9 of the fitting 8 to change the aperture of the valves for the cold water and/or the hot water connection accordingly. The electronic controller 4 of said control device 1 is thus designed that it can be activated to open the electronically controlled mixing valve 9, whereby said activation of the electronic controller 4 can be effected by means of an approximation or touching of the first sensor 15 by an operating person.
Particularly preferred for the use in a control device 1 according to the invention is a generally known rotary switch with a mechanical incremental encoder, which is commercially available with or without push-button function. Extremely compact rotary encoders of this type are extremely resistant against defects and combine robustness and durability with an excellent locking feeling. The selectable locking moment and the equally selectable touching force result in a safe turning feeling for the user and a clear assignment of the different functional levels. Rotary switches of this type are waterproof and can be installed or operated both in a horizontal as well as a vertical position.
FIG. 7 shows a partial section through a control device 1 according to the second embodiment. Said control device 1 comprises a touch sensor 15 that assigns the second functional level to the control element 3 when the switching element 14 is approximated or touched. Moreover, said control device 1 comprises a second sensor 17 for mechanical, optical, capacitive or inductive detection of the rotating movement of the control element 3. In this case, said second sensor 17 is designed as firmly mounted Hall sensor that detects the position of the control element 3 in relation to the permanent magnets 22 that rotate with the control element 3 when said control element is rotated. This information is transmitted to the electronic controller 4 of the control device 1, so that the same can cause the electronic valve control 9 of the fitting 8 to change the aperture of the valves for the cold water and/or the hot water connection accordingly. In this case, the switching element 14 is preferably firmly connected with the base 6 and the optical display device 21. The electronic controller 4 of said control device 1 is thus designed that it can be activated to open the electronically controlled mixing valve 9, whereby said activation of the electronic controller 4 can be effected by means of at least a touch or an approximation of the touch sensor 15 by an operating person. The control element 3 is preferably suspended movably on a guide 23.
Three cases for the selection of an average flow of water with a pre-selected temperature are particularly preferred:
- A The electronic controller 4 of the control device 1 is preferably designed in such a way that it triggers the electronically controlled mixing valve 9 to release an average flow of cold water from the water discharge point 8 by single approximation or touching of the touch sensor 15. In this case, the cold water temperature is preferably 10° C.
- B Moreover, it is preferred that the electronic controller 4 of the control device 1 is designed in such a way that it triggers the electronically controlled mixing valve 9 to release an average flow of warm water from the water discharge point 8 by two-fold approximation or touching of the touch sensor 15. In this case, the hot water temperature is preferably 35° C.
- C Furthermore, it is preferred that the electronic controller 4 of the control device 1 is designed in such a way that it triggers the electronically controlled mixing valve 9 to release an average flow of hot water from the water discharge point 8 by three-fold approximation or touching of the touch sensor 15. In this case, the hot water temperature is preferably 60° C.
In all three cases A-C, a single, additional approximation or touch of the touch sensor 15 results in the closure of the electronically controlled mixing valve 9 and thus to an interruption of the withdrawal of water. A touch of this type, which is used in accordance with the invention to select an average flow of water with a pre-selected temperature, but also to close the electronically controlled mixing valve 9, can be performed very briefly and requires typically and preferably less than 1 second to be performed.
The electronic controller 4 of the control device 1 preferably comprises a memory mode. Directly after selecting an average flow of water with a pre-selected temperature in accordance with one of the cases A-C, a change of the temperature is detected in this mode by rotating the control element 3 and uninterruptedly touching the touch sensor 15 for an activation period. Said activation period is preferably 5 seconds, but can be adapted as needed. After activation, the changed temperature values are stored, so that the electronic controller 4 releases water using the newly stored values the next time an average flow of water with a pre-selected temperature is selected in accordance with the cases A-C.
Preferably, all current settings of the fitting can be stored by means of uninterrupted touching of the touch sensor during an activation period. Accordingly, the electronic controller 4 of the control device 1 preferably comprises at least 3 storages S1, S2 and S3, to which any flow/temperature combination can be assigned each, depending on current desire (see comments ad FIG. 5).
Preferably, the control device 1 comprises an acoustic sounder 18 (see FIGS. 7 and 8) that is designed to confirm every switching movement of the switching element 14 or every touching or approximation of the touch sensor 14 by giving off an acoustic signal.
FIG. 8 shows views of a water discharge point 8 of a kitchen sink 7 and a relevant control device 1. FIG. 8A thereby shows a view of a control device 1 according to the first embodiment that is mounted to the water discharge point 8 with the base 6. In this case, the control device 1 is integrated in a water discharge point 8. According to the alignment of the control device 1, the switching element 14 is now pressed or touched from the side to assign a second functional level to the control element 3. In this case, the control device 1 comprises a transmission device 20 that is designed to transmit control commands from the control element 3 to the electronic controller 4, whereby said transmission device 20 is designed wire-bound.
An optical display device 21 is preferably affixed to the base 6 in this case and does not rotate with the control element 3 designed as rotating part. This optical display device 21 is designed to display current settings of the control device 1 or the mixing valve 9. The optical display device 21 preferably comprises an RGB LED, as it is generally known in accordance with the state of the art and has been described already in connection with FIG. 5A.
As an alternative to switching using the switching element 14 designed as rotating part, the second functional level can be assigned to the control element 3 by means of a separate switch 13. Using a separate switch 13 of this type, which is preferably designed as touch switch, all current settings of the fitting can be stored by means of uninterrupted pressing of the separate switch 13 during an activation period, aside from the assignment of the second functional level.
FIG. 8B shows a view of a control device 1 according to a sixth and seventh embodiment that can be mounted to the water discharge point 8 and which can be removed from there and positioned practically at random. Thus, said control device 1 is designed to be able to be positioned separately from the water discharge point 8. Said control device 1 preferably comprises a transmission device 20 that is designed to transmit control commands from the control element 3 to the electronic controller 4, whereby said transmission device 20 is designed wireless.
Especially preferred is a control device 1 of this type in which the transmission device 20 is moreover designed for wireless transmission of electric power to the control element 3. Said transmission is preferably performed using high-frequency radio waves.
An optical display device 21 is preferably arranged at the foot of the fitting 8 in this case and thus cannot be removed with the control element 3 designed as rotating part. This is for the reason that the power transmission is generally not enough to supply a display device 21 arranged on the control element 3. This optical display device 21 is designed to display current settings of the control device 1 or the mixing valve 9. The optical display device 21 preferably comprises an RGB LED, as it is generally known in accordance with the state of the art and has been described already in connection with FIG. 5A. Alternatively or in addition to such an optical display device 21 with an RGB LED, also one or more color LEDs 26 (three are shown here) can be arranged at the standing column of the fitting 8.
To dock the removable control device 1 to the fitting 8, the water discharge point 8 is preferably provided with a special surface 19 in the form of a loading bay. The power can be transmitted to said control device 1 by means of induction or also by means of electric contacts when the control device 1 is docked. Magnetic forces are preferably used for secure fixture of the control device 1 to the fitting 8. Thereby, it is left up to an expert to determine which of the two functional partners comprises a permanent magnet and which one a reversely polarized permanent magnet or just a magnetizable metal plate. In principal, the use of solenoids is also possible.
FIG. 9 shows a control device 1 for the water discharge point 8 of a shower 7, which can be positioned practically at random on a wall thanks to a magnetizable plate 24 under a glass or ceramic plate. The transmission of data and power is also performed wirelessly in the case of this sixth and seventh embodiment of the control device 1, which substantially vary by the height of the base 6, as in FIG. 8. In this example, the current temperature (37.5° C.) and the current water consumption (68.9 l/min) are indicated by means of numerical values. Naturally, the controller of the control device 1 requires relevant data, which is provided to the controller by generally known and respectively arranged sensors, such as PT100 sensors or flowmeters. A permanent magnet in the base 6 ensures that the control device 1 remains in its allocated place and does not fall down. Friction-raising coatings at the underside of the base 6 (not shown) preferably increase the operational safety and the stability of said control device 1.
The scope of this invention includes a random number of combinations of the features described and shown in the figures. The drawing references in the figures refer to the same features, even if these are not described in detail in every case.
DRAWING REFERENCES
1 Control device
2 First and second functional level
3 Control element
4 Electronic controller
5 Electric power supply
6 Base
7 Plumbing appliance
8 Water discharge point, fitting
9 Electronically controlled mixing valve
10 Cold water connection
11 Hot water connection
13 Separate switch
14 Switching element
15 Touch sensor, first sensor
17 Second sensor
18 Acoustic sounder
19 Fitting surface
20 Transmission device
21 Optical display device, RGB LED
22 Magnet
23 Guide
24 Magnetizable plate
25 Acrylic glass ring
26 Color LEDs
27 Axis
Patent Grant
8469054
