COMBINED STEAM PRODUCTION AND STEAM DISTRIBUTION DEVICE

Abstract

The invention relates to a combined steam production and steam distribution device (100) comprising a backward compatible connection equipment (104) for a removable connection of the steam distribution device (106) with the steam production device (102), which is in particular backward compatible, the connection equipment (104) comprising the following: - at least one connection unit (108) on the steam production side and at least one corresponding connection unit (110) on the steam distribution side, which can be removably connected to each other for the passage of steam and electrical contact; - a steam conduit connection element (128), which is included by the connection unit (108) on the steam production side, and a corresponding steam conduit connection element (130), which is included by the connection unit (110) on the steam distribution side;and several pairs of contact elements (A, A', B, B', C, C', D, D', E, E', F, F', G, G', H, H') for the implementation of a communication interface (109) by means of which analog and / or digital signals are transmitted, wherein each pair of contact elements (A, A', B, B', C, C', D, D', E, E', F, F', G, G', H, H') comprises a contact element (A, B, C, D, E, F, G, H), which is arranged in the connection unit (108) on the steam generation side, and a corresponding contact element (A', B', C', D', E', F', G', H'), which is arranged in the connection unit (110) on the steam distribution side, and wherein the steam generation device (102) is arranged for communication unidirectional and / or bidirectional with the steam distribution device (106). Figure for the abbreviation: figure 1;

Description

Title of the invention: COMBINED STEAM PRODUCTION AND STEAM DISTRIBUTION DEVICE

[0001] The invention relates to a combined steam generation and steam distribution device comprising a connection equipment for a detachable connection of the steam distribution device with the steam generation device, which is in particular backward compatible, the connection equipment comprising the following: at least one steam generation-side connection unit and at least one steam distribution-side connection unit, which can be detachably connected to each other for steam passage and electrical contact; a steam conduit connection element which the steam generation-side connection unit comprises, and a corresponding steam conduit connection element which the steam distribution-side connection unit comprises;and several pairs of contact elements, each pair of contact elements having a contact element, which is arranged in the steam production-side connection unit, and a corresponding contact element, which is arranged in the steam distribution-side connection unit. ;

[0002] In practice, combined steam generation and steam distribution devices are known, comprising connection equipment for a detachable connection of the steam distribution device with the steam generation device. Thus, not only are the steam lines of the steam generation and steam distribution device connected to each other for the passage of steam by means of the connection equipment, but an electrical contact is also made at the same time via the connection equipment. This allows, for example, the device electronics of the steam generation device, which controls the steam generation and the steam line, to recognize the type of the steam distribution device. Different steam distribution devices can therefore be operated with a single steam generation device.

[0003] The steam generating device may, for example, be a steam cleaner, which is compatible with both a steam cleaning gun or a floor nozzle and a steam iron. With a combination of this type of steam cleaner, steam cleaning gun or floor nozzle and steam iron, it becomes possible, as desired, to clean floors, other surfaces or fittings as well as to iron clothes.

[0004] WO 2012 / 000768 A2 discloses, for example, a combined steam production and steam distribution device, which has equipment for connection for detachable connection of the steam distribution device with a steam generating device. An iron or a floor nozzle, for example, can be operated using the connection equipment. This combined steam generation and distribution device has proven itself in practice.

[0005] An improved vacuum cleaner is already known from EP 0 430 478 A1, where a signal transmission takes place from the handle of the tubular part to the suction motor, whereby the vacuum cleaner can be manipulated via the handle.

[0006] EP 1 121 891 A2 discloses a control device, which is removably arranged against the handle of a cleaning appliance and by means of which user inputs can be transmitted to a receiving device in the appliance body. The control device is connected to means for controlling the various functions of the cleaning appliance.

[0007] Furthermore, DE 94 08 167 U1 discloses a switching option for a steam ironing and cleaning appliance for coordinating the total output of a steam boiler heater and an iron heater. The iron is connected via a combined plug-in system in which there is a coding that is recognized by the steam generator. A control unit then regulates the output of the steam boiler heater.

[0008] It would be desirable if information from the steam generating device could also be provided to the user in the area of ​​the steam distribution device, without having to forego the connection equipment used until now.

[0009] The objective of the present invention is to provide a combined steam production and steam distribution device comprising improved connection equipment.

[0010] This object is achieved by a combined steam generation and steam distribution device according to the invention comprising a connection equipment for a detachable connection of the steam distribution device with the steam generation device, which is in particular backward compatible, the connection equipment comprising the following: at least one steam generation-side connection unit and at least one corresponding steam distribution-side connection unit, which can be detachably connected to each other for steam passage and electrical contact and in particular for signal transmission; a steam conduit connection element which the steam generation-side connection unit comprises, and a corresponding steam conduit connection element which the steam distribution-side connection unit comprises; and a plurality of pairs of contact elements for producing an interface communication device by means of which analog and / or digital signals can be transmitted, each pair of contact elements having a contact element, which is arranged in the connection unit on the steam production side, and a corresponding contact element, which is arranged in the connection unit on the steam distribution side, and the steam production device being arranged for one-way and / or two-way communication with the steam distribution device.

[0011] The present invention takes into account that a steam generating device, such as for example a steam appliance base station, is provided to which various steam dispensing devices, such as for example an iron, a steam gun or a floor nozzle, can be connected. In doing so, more desirably, depending on the configuration of the respective steam dispensing device, a simple communication interface for unidirectional transmission of analog or digital signals or a serial communication interface for bidirectional transmission of digital signals can be realized.

[0012] With previously known combined steam generation and steam distribution devices, such as those described in WO 2012 / 000768 A2, only a unidirectional transmission of analog signals was possible, i.e. the steam generation device detects against which connected pairs of contact elements a voltage is applied and, if so, what the voltage level is. In contrast, new generation steam distribution devices are already designed, for example by using at least one microcontroller and / or a UART circuit, on the one hand to autonomously evaluate user inputs and on the other hand to bidirectionally exchange analog and / or digital signals with the device electronics of the steam generation device, wherein a further microcontroller is preferably arranged on the motherboard of the steam generation device or included therein..

[0013] A steam production device according to the invention is therefore preferably arranged both to cooperate with new generation steam distribution devices and to provide a communication interface for signal transmission and to cooperate in a backward compatible manner with steam distribution devices used until now.

[0014] The steam generating device and the selected steam distribution device can be connected to each other via a connection equipment, the connection equipment preferably comprising two connection units, one of which is arranged against the steam generating device and the other of which is connected to or arranged against the steam distribution device, i.e. the connection equipment comprises a steam generating side connection unit and a corresponding connection unit on the steam distribution side. If the two connection units are connected to each other in a suitable manner, on the one hand the passage of steam from the steam generating device to the connected steam distribution device becomes possible, on the other hand, analog and / or digital signals can be transmitted, a signal to be understood as a basic element of analog and / or digital communication.

[0015] For the passage of steam, the connection equipment comprises two corresponding steam conduit connection elements, which are connected to each other by assembling the connection units. The connection between the steam conduit connection elements is preferably sealed so that steam does not reach the connection equipment during the passage of steam.

[0016] The contact elements which are arranged in the connection unit on the steam production side are preferably designed as female contact elements in the form of plug sockets, while the contact elements which are arranged in the connection unit on the steam distribution side are preferably designed as male contact elements in the form of plugs.

[0017] However, it is also conceivable that the contact elements on the steam production side are designed in male form and that the contact elements on the steam distribution side are designed in female form.

[0018] It is to be understood that after the connection units of the connection equipment have been connected, the pairs of contact elements are connected to each other or interlock with each other so that reliable signal transmission is made possible during operation of the combined steam generation and steam distribution device.

[0019] Provision may be made for the contact elements of the steam production-side connection unit to be connected to a device electronics of the steam production device, in particular to a board of the device electronics. The device electronics comprises, for example, a board on which, for example and among other things, a microcontroller may be arranged. Other elements or modules, unless otherwise indicated below, will be assumed to be known and will not be described in detail. In doing so, it is possible to process signals received by the steam distribution device or to send commands in the form of signals to the steam distribution device.

[0020] It is advantageous for the two-way communication interface to comprise the following: - a pair of very low voltage contact elements; - a first pair of data exchange contact elements; - a second pair of data exchange contact elements; - a pair of protective conductor contact elements and / or a pair of earth contact elements; and - in particular three pairs of supply voltage contact elements.

[0021] The power supply to the steam distribution device is preferably provided via the pair of extra-low voltage contact elements.

[0022] The in particular three pairs of supply voltage contact elements are provided, for example, so that the heating elements in the steam generating device and / or the steam distribution device can be supplied with current.

[0023] When connecting a steam distribution device in the form of a steam gun or a floor nozzle, preferably only one of the or more heating elements in the steam generating device is supplied with current to heat the water contained in a container.

[0024] When connecting a steam distribution device in the form of an iron, which additionally has one or more heating elements, one of the one or more heating elements of the steam generating device and one of the one or more heating elements of the iron must be supplied with current.

[0025] It may further be provided that the first pair of data exchange contact elements and the second pair of data exchange contact elements have opposite data exchange directions.

[0026] The first pair of data exchange contact elements is for example provided to transmit signals from the steam distribution device to the steam production device, while the second pair of data exchange contact elements is provided to transmit signals from the steam production device to the steam distribution device. However, the reverse case is also conceivable, so that the first pair transmits in the direction of the steam distribution device and the second pair in the direction of the steam production device.

[0027] It may be provided that the first pair of data exchange contact elements has a receiving contact element on the steam production side and a transmitting contact element on the steam distribution side.

[0028] A receiving contact element is preferably understood to mean a contact element which is connected to a receiving connection point of the card, so that signals received via the receiving contact element can be evaluated and the production and / or distribution of steam can be controlled and / or regulated accordingly.

[0029] By transmission contact element is preferably meant a contact element which is connected to a transmission connection point of the card, so that commands or instructions can be sent to the steam dispensing device in the form of signals via the transmission contact element.

[0030] The connection of the contact elements and other peripheral elements or modules to the board is preferably carried out by means of plug connections, which is why the respective connection point is preferably implemented via pin connections.

[0031] It may further be provided that the second pair of data exchange contact elements has a transmitting contact element on the steam production side and a receiving contact element on the steam distribution side.

[0032] It is further advantageous if the steam generation-side contact element of the first pair of data exchange contact elements is connected to a first analog-to-digital converter of the device electronics, and / or if the steam generation-side contact element of the second pair of data exchange contact elements is connected to a second analog-to-digital converter of the device electronics. It may be provided that the analog-to-digital converters are identical or coincide.

[0033] The first and / or second analog-to-digital converter are preferably integrated in the microcontroller of the device electronics. In other words, the function of a first and / or second analog-to-digital converter is preferably made available via the microcontroller of the device electronics.

[0034] Alternatively, the first and / or second analog-to-digital converters can respectively also be designed as a separate element, which is preferably arranged on the circuit board of the device electronics or included therein, and be connected to the microcontroller of the device electronics.

[0035] By providing an analog-to-digital converter function at the corresponding contact elements of the first and second pairs of data exchange contact elements, it is possible to detect and operate a previous generation steam dispensing device. Via the two pairs of data exchange contact elements, it becomes possible to detect, by means of the connected analog-to-digital converters, whether a steam dispensing device is connected, what the type of steam dispensing device is and / or whether steam dispensing is activated or deactivated.

[0036] Furthermore, it can be provided that the steam production-side contact element of the first pair of data exchange contact elements is configured such that digital and / or analog reception signals can be called up cyclically.

[0037] If a steam distribution device is connected to the steam production device, which is arranged for the realization of a serial communication interface, then digital signals, i.e. high and low signals, which can be called up by the steam production device, preferably cyclically, are transmitted via the first and second pair of data exchange contact elements.

[0038] When connecting an older generation steam distribution device, which therefore implements different circuits for controlling the steam distribution and the heating elements only via the contact element pairs, a cyclic call of the analog-to-digital converter function of the first data exchange contact element pair can, for example, be made to determine the application of a permanent voltage.

[0039] For example, the application of a permanent voltage, which is preferably caused by the fact that the extra-low voltage contact element and the first data exchange contact element of the steam distribution-side connection unit are connected to each other, makes it possible to determine that an older generation steam distribution device is connected to the backward-compatible steam production device.

[0040] The permanently applied voltage level, which can be adjusted for example by arranging an ohmic resistance between the extra-low voltage contact element and the first data exchange contact element of the steam distribution-side connection unit, enables the backward-compatible steam generating device to derive the type of a connected steam distribution device.

[0041] For example, when connecting an older generation steam dispensing device in the form of a floor nozzle, which has neither a microcontroller nor a UART circuit, a very low voltage of, for example, approximately 0 V to 12 V, for example 0 V to 5 V, in a particular example 3.3 V to 5 V, may apply between the pair of very low voltage contact elements and the first pair of data exchange contact elements.

[0042] To then make a distinction in the case of backward compatible use, for example in the case of an old generation steam distribution device in the form of an iron, half of the very low voltage can be applied by the use of an ohmic resistance between the pair of very low voltage contact elements and the first pair of data exchange contact elements.

[0043] A hand nozzle or a floor nozzle, mounted directly or indirectly against gripping equipment (e.g. comprised by a steam gun), an iron or the like, can therefore be differentiated from each other via the height or level of the voltage signal detected via the first pair of elements of data exchange contact and converted with the first analog-to-digital converter.

[0044] It is advantageous that a level of a permanently applied voltage can be ascertained by means of the first analog-to-digital converter, and that the application of another voltage can be ascertained by means of the second analog-to-digital converter.

[0045] Preferably, on the sides of an older generation steam dispensing device, such as an iron or steam gun without serial communication equipment, the extra-low voltage contact element is connected to the second data exchange contact element, the connection being able to be closed or interrupted by means of a switching element arranged in the connection.

[0046] In the case of a closed switching element, a very low voltage is therefore present between the very low voltage contact element and the second data exchange contact element.

[0047] This therefore permanently applied very low voltage can be detected via the second analog-to-digital converter, which is connected to the second data exchange contact element on the steam production side. The detected and converted signal then causes, for example, a valve element and / or pumping equipment to be switched and steam to be dispensed from the container to the steam dispensing device. The valve element may be or comprise a solenoid valve.

[0048] Conversely, opening the connection between the extra-low voltage contact element and the second data exchange contact element of the connection unit on the steam distribution side causes, by means of the switching element, a closing of the valve element, whereby the steam supply to the steam distribution device is interrupted or stopped.

[0049] It may further be provided that the steam dispensing device comprises a human-machine interface (HMI) for user-side manipulation of the combined steam generation and steam dispensing device, the human-machine interface preferably being arranged against gripping equipment of the steam dispensing device, and the human-machine interface preferably having a microcontroller, which is connected to the contact elements on the steam dispensing side and via which user inputs are entered for control and / or regulation of the combined steam generation and steam dispensing device.

[0050] Thanks to the human-machine interface, the user can, directly via the steam distribution device, make adjustments concerning the steam distribution process.

[0051] Alternatively or additionally, it is possible, using the human-machine interface, to provide the user with data or information on the state of the steam production device, such as for example the quantity of water in the container or the temperature of the steam. The user no longer needs to read this data or information at the steam production device.

[0052] Preferably, the microcontroller processes incoming user inputs and incoming information from the vapor generating device and transfers the result to the vapor generating device or the user.

[0053] It is advantageous if the human-machine interface comprises a UART circuit by means of which bidirectional serial communication can be achieved between the steam dispensing device and the steam generating device.

[0054] A serial communication interface between the steam dispensing device and the steam generating device can be implemented using a UART circuit, via which digital signals can be exchanged bidirectionally.

[0055] The UART circuit requires in particular four connections or lines, for example one for the very low voltage supply, one for the transmission of signals, one for the reception of signals and a connection to ground at a reference potential for the current circuit in order to ensure the functionality of the steam distribution device.

[0056] Therefore, a serial communication interface requires comparatively few conductor wires and thus reduces installation costs and efforts. In addition, a communication interface promotes data transmission over long distances, so that the steam generating device and the steam dispensing device can be used remotely from each other.

[0057] Furthermore, it may be provided that the human-machine interface has a display unit, preferably a touch-sensitive display unit, and / or at least one touch element.

[0058] The user can enter his inputs for adjusting the steam delivery via the display unit and / or the at least one key element.

[0059] Furthermore, the use of a display unit allows a comprehensive representation of information, such as, for example, selection options for operating the steam distribution device or the filling level of the water heater.

[0060] The following description of preferred embodiments serves, in conjunction with the drawing, to explain the invention in more detail. It shows:

[0061] [Fig. 1] a preferred embodiment of a combined steam production and steam distribution device according to the invention;

[0062] [Fig.2] a top view of a preferred embodiment of a steam production side connection unit of a connection equipment according to the invention;

[0063] [Fig.3] a top view of a preferred embodiment of a steam distribution side connection unit of a connection equipment according to the invention;

[0064] [Fig.4] a schematic wiring plan view of an apparatus electronics of a steam production device according to the invention;

[0065] [Fig.5] a schematic wiring plan view of a steam distribution side connection unit of a first embodiment of a steam distribution device according to the invention;

[0066] [Fig.6] a schematic wiring plan view of a steam distribution side connection unit of a second embodiment of a steam distribution device according to the invention; and

[0067] [Fig.7] a schematic wiring plan view of a steam distribution side connection unit of a third embodiment of a steam distribution device according to the invention.

[0068] [Fig.l] schematically shows a preferred embodiment of a combined steam production and steam distribution device 100 according to the invention.

[0069] The combined steam production and steam distribution device 100, hereinafter referred to as "device 100", comprises a steam production device 102, which can be connected by means of connection equipment 104 to one of the three steam distribution devices 106 shown by way of example.

[0070] The connection equipment 104 comprises a connection unit 108 on the steam production side and a corresponding connection unit 110 on the steam distribution side, which can be removably connected for steam passage and electrical contact. Here, there is the possibility of bidirectional communication via the connection unit 108.

[0071] If the connection unit 108 on the steam production side and the connection unit 110 on the steam distribution side are connected to each other, a communication interface can be fully implemented in the connection equipment 104, which allows signals and / or data to be transmitted between the steam distribution device 106 and the steam production device 102.

[0072] The connection equipment 104 is preferably designed as a plug connection 112, the connection units 108, 110 being designed as a plug half 114 on the steam production side or a plug half 116 on the steam distribution side.

[0073] Further details relating to the connection equipment 104 are provided below in connection with [Fig.2] to 7.

[0074] The steam production-side connection unit 108 is arranged against the steam production device 102, while the respective steam distribution device 106 has a corresponding connection unit 110, which is connected to the steam distribution device 106 preferably via a connection duct 118.

[0075] [Fig. 1] shows by way of example an embodiment of the steam distribution device 106, which is designed as a steam iron 120 (shown in the center in [Fig. 1]), and another embodiment of the steam distribution device 106, which is designed as a simple steam gun (not shown) with a hand and / or floor nozzle 122 (shown on the right in [Fig. 1]). [Fig. 1] shows that the steam iron 120 is here connected to the steam generating device 102. The connection unit 108 of the steam generating device 102 is connected to the connection unit 110 of the steam iron 120, whereby the two connection units 108, 110 of the connection equipment 104 are connected to each other for the proper operation of the device 100.

[0076] Another preferred embodiment of a steam dispensing device 106 of the device 100 according to the invention is designed as a steam gun 123 (shown on the left in [Fig.l]) and preferably comprises a human-machine interface (HMI) 125, which is preferably arranged against or sufficiently close to a gripping device 127 of the steam gun 123 so that a user can manipulate the device 100 via the human-machine interface 125. The steam gun 123 is here connected to a floor nozzle 122 via a hose. Alternatively, a hand-held nozzle could be provided, directly connected to the steam gun 123.

[0077] The steam production device 102 here comprises a housing 124 provided with rollers.

[0078] In the housing 124 is housed an electric heating equipment known per se and not shown in [Fig.l] for heating water in a container also known per se and also not shown in [Fig.l] or also in an instantaneous water heater. The water can be evaporated by heating and conducted via the connection equipment 104 optionally to the steam iron 120 or the floor nozzle 122 or any other embodiment of a steam distribution device 106.

[0079] The steam production device 102 further comprises apparatus electronics 126, which will be described in more detail below in connection with [Fig.4].

[0080] Different nozzle tips can here be connected as desired to a free end of the steam distribution device 106, depending on the intended use.

[0081] The human-machine interface 125 comprises the connection unit 110 on the steam distribution side and / or is in particular electrically connected to it.

[0082] The human-machine interface 125 further comprises a microcontroller as well as a display unit 1251 and / or at least one key element.

[0083] The microcontroller allows on the one hand the processing of a user input, and on the other hand the provision of data from the steam production device 102.

[0084] The display unit 1251, which is preferably designed as a touchscreen display, allows the user to enter his operating wishes, i.e. he can, for example, select the desired functions from a displayed menu or obtain information about the status of the device 100.

[0085] Alternatively or additionally, the user can also manipulate the device 100 via at least one touch element.

[0086] The human-machine interface 125 is for example permanently integrated into the steam gun 123 or removably connected to the steam gun 123, whereby maintenance work, such as for example a battery change or an update of the embedded software of the microcontroller, can, if necessary, be easily carried out at the human-machine interface 125.

[0087] [Fig.2] shows a top view of a preferred embodiment of a connection unit 108 on the steam production side of a connection equipment 104.

[0088] The steam production side connection unit 108 comprises a steam conduit connection element 128 as well as, in the present example, - a very low voltage contact element A; - a first data exchange contact element B; - a second data exchange contact element C; - a protective conductor contact element D; - a ground contact element E; and - three supply voltage contact elements F, G, H.

[0089] Correspondingly, [Fig. 3] shows a top view of a preferred embodiment of a connection unit 110 on the steam distribution side of the connection equipment 104.

[0090] The steam distribution side connection unit 110 comprises a steam conduit connection element 130, which corresponds to the steam conduit connection element 128, as well as - a very low voltage contact element A', which corresponds to the very low voltage contact element A; - a first data exchange contact element B', which corresponds to the first data exchange contact element B; - a second data exchange contact element C', which corresponds to the second data exchange contact element C; - a protective conductor contact element D', which corresponds to the protective conductor contact element D; - a ground contact element E', which corresponds to the ground contact element E; and - three supply voltage contact elements F', G', H', which correspond respectively to the three supply voltage contact elements F, G, H.

[0091] It should be understood that the spatial arrangement of the contact elements in the connection units 108, 110 in [Fig. 2] and 3 constitutes only an example and that other arrangements are therefore also possible.

[0092] The contact elements A to H are here female contact elements in the form of plug-in sockets, while the contact elements A' to H' are here designed as rod-shaped male contacts. It would of course also be possible for the contact elements A to H to be designed as male and the contact elements A' to H' as female.

[0093] The advantages of the arrangement shown of the steam conduit connecting elements 128, 130, the contact elements A to H or A' to H' as well as the other elements of the connection unit 108, 110 and their respective function can for example be taken from WO 2012 / 000768 AL

[0094] [Fig.4] shows a schematic wiring plan view of a preferred embodiment of the apparatus electronics 126 of the steam generating device 102 according to the invention.

[0095] Only the contact elements A to H of the connection unit 108 on the steam production side are shown schematically, their respective implementation in the device electronics 126 then being in the foreground.

[0096] The device electronics 126 comprises a board 132, which controls and / or regulates the connected or connected elements or modules and on which a microcontroller 133 is arranged, which among other things implements one or more analog-digital converters for one or more of the contact elements A to H of the connection unit 110 on the steam production side.

[0097] The card 132 is connected to a connecting element 136 designed as male via a plug connection 134. The device 100 can be connected to a power supply network by means of the connecting element 136 to supply the device 100 with a network voltage.

[0098] The sheet 136 has for example a neutral conductor N, an external conductor L and a protective conductor PE.

[0099] On the card 132 is arranged here a relay circuit 138 with which the circuit between the neutral conductor N and the external conductor L can be closed, or interrupted for a standby mode.

[0100] A first heating element 142 is connected to the board 132 via a plug-in connection 140, a thermal fuse 144 can be arranged in one electrical connection line, and a low-water thermostat 146 and a pressure switch 148 can be arranged in the other electrical connection line. The thermal fuse 144 serves to switch off the first heating element 142 as soon as a critical overtemperature has been reached.

[0101] The first heating element 142 preferably has a heat output of at least about 1000 W or greater.

[0102] A second heating element 150 is switched on in parallel with the first heating element 142 and can be switched on or off preferably separately from the first heating element 142.

[0103] The second heating element 150 preferably has a heating power of 700 W and is preferably switched on depending on the type of the connected steam distribution device 106.

[0104] The water, which is contained in a container and in particular a water heater 152, can be evaporated by means of the first and / or the second heating element 142, 150.

[0105] The water shortage thermostat 146 is controlled and / or regulated via the microcontroller 133.

[0106] The pressure switch 148 monitors the pressure in the container 152 during operation. The first heating element 142 is switched off as soon as the maximum operating pressure in the container 152 has been reached, and switched on again in the event of a pressure drop in the container 152 following a steam draw.

[0107] The container 152 has a connection 154 for a protective earth, which is connected to the protective conductor PE of the plug 136.

[0108] A valve element 158, configured here as a solenoid valve, and a pump 160 are connected to the board 132 by a plug-in connection 156.

[0109] The valve element 158 ​​is opened for steam delivery and the pump 160 directs the steam flow toward the steam delivery device 106.

[0110] A further valve element 162, which is here connected to the board 132 via a plug-in connection 166, serves to control and / or regulate the steam delivery quantity.

[0111] The card 132 is further connected to a fan 168, for example via a plug connection 170, which cools the air for, for example, a cable drum or the like.

[0112] The card 132 is further connected to an LED card 174 via a plug-in connection 172, by means of which different operating states or modes at the steam generating device 102 of the device 100 can be displayed to the user.

[0113] The contact elements A, B, C and E of the connection unit 108 on the steam production side are here connected to the card via a plug-in connection 176.

[0114] The contact element A is connected to a very low voltage connection point VCC (voltage at the common collector) of the card 132, via which a very low voltage of for example 3.3 V or 5 V is supplied and which is preferably connected to the microcontroller 133.

[0115] The contact element B is connected to the receiving connection point RX (receive) of the card 132, via which the card 132 receives signals and then processes or evaluates them.

[0116] The receiving connection point RX is furthermore directly or indirectly connected to a first analog-to-digital converter, which is preferably provided by the microcontroller 133, so that it is completely possible via the contact element B to detect and evaluate both digital and analog signals.

[0117] The contact element C is connected to the transmission connection point TX (transmit) of the card 132, via which signals can be sent.

[0118] The transmit connection point TX is connected directly or indirectly to a second analog-to-digital converter, which is preferably also provided by the microcontroller 133, so that via the contact element C not only digital signals can be sent, but also digital signals can be detected and evaluated. Alternatively, the transmit connection point TX is directly connected to the digital input pin of the microcontroller 133.

[0119] It should be understood that via the contact element B or the receiving connection point RX, it is possible both to receive digital signals and, thanks to the additional function of the first analog-digital converter, to recognize the type of the connected steam distribution device 106.

[0120] The signal call via the RX receiving connection point is preferably carried out cyclically, with voltage level changes between "high" and "low" being detected in the case of an incoming digital signal from a receiving device. steam distribution 106, which for example has a UART circuit for digital communication.

[0121] The first analog-to-digital converter is also preferably called cyclically, the detection of a permanent voltage level and the establishment of the voltage level making it possible to deduce the type of the connected steam distribution device 106.

[0122] A steam distribution device 106 is for example recognized as not connected if a zero signal or a permanent low signal is detected during the cyclic signal interrogation.

[0123] The second analog-to-digital converter is preferably activated only from the moment when a steam distribution device 106 not arranged for or not capable of digital communication has been determined by means of the first analog-to-digital converter.

[0124] The contact element D is connected to the protective earth 154 of the container 152, and the contact element E to a connection to the ground GND of the card 132.

[0125] Contact element F is connected to the outer conductor L of plug 136 and contact element G to the neutral conductor N of plug 136.

[0126] The contact element H is connected to the second heating element 150.

[0127] The plug connection 176 also creates the connection of a probe 178 to the card 132. The probe 178 is arranged in the container 152 and monitors the temperature of the water or water vapor there.

[0128] It should be understood that the plug connections 134, 140, 156, 166, 170, 172, 176 only represent a possibility for conductingly connecting the corresponding elements or modules to the board 132. The respective poles can, for example, also be directly conductingly connected to the corresponding connection point on the board 132.

[0129] [Fig. 5] shows a schematic wiring plan view of a steam distribution-side connection unit 110 of one embodiment of the steam distribution device 106, which is designed as a steam gun 123, as shown on the left in [Fig. 1]. In this instance, the steam conduit connection element 130 is not shown.

[0130] The vapor dispensing device 106 in [Fig.5] is preferably a vapor dispensing device 106 with a human-machine interface (HMI) 125, which has a microcontroller and a UART circuit, and a display unit 1251.

[0131] Such a steam distribution device 106 allows the creation of a bidirectional communication interface between the steam distribution device 106 and the steam generating device 102, via which digital signals can be exchanged.

[0132] A steam dispensing device 106 with a human-machine interface 125, such as for example the steam gun 123, allows a user to manipulate or adjust the entire device 100 entirely from the steam dispensing device 106. This is advantageous because the steam generating device 102, which is generally heavier, remains on the ground and is spatially separated from the steam dispensing device 106. A user therefore preferably does not need to make adjustments to the steam generating device 102 during operation of the device 100 and can furthermore remain at the workplace.

[0133] The contact element A' is therefore arranged to, together with the corresponding contact element A of the connection unit 108 on the steam production side, supply the human-machine interface 125, in particular the microcontroller, with a very low voltage, preferably 3.3 V or 5 V.

[0134] The contact element B' is connected to a transmission connection point TX of the microcontroller and allows the sending of digital signals from the microcontroller to the corresponding contact element B of the connection unit 108 on the steam production side or to the steam production device 102, which is connected to the reception connection point RX of the card 132.

[0135] Conversely, the contact element C' is connected to a receiving connection point RX of the microcontroller and allows the reception of digital signals from the corresponding contact element C of the connection unit 108 on the steam production side or the steam production device 102, which is connected to the sending connection point TX of the card 132.

[0136] The contact element E' is connected to the corresponding ground GND via the corresponding contact element E.

[0137] Here, the contact elements D' and G' are not occupied.

[0138] The contact elements F' and H' are connected to each other, whereby after the connection with the corresponding contact elements F and H of the connection unit 108 on the steam production side, the mains voltage is applied as supply voltage between the neutral conductor N and the outer conductor L, and the first and second heating elements 142, 150 of the steam production device 102 switched on in parallel heat and evaporate the water in the container 152.

[0139] At a steam dispensing device 106, for example designed as a steam gun 123, with a human-machine interface 125, it is for example possible to make the following settings or select the following handling options via said human-machine interface 125: - start / stop steam dispensing, - adjust the amount of steam, - steam mode (continuous steam, intermittent steam, increasing / decreasing steam pressure, user-defined mode, etc.), - activate / deactivate child lock, - instructions for use for accessories, - instructions for use for descaling, - settings, and - provision of information.

[0140] In [Fig. 6] is shown a schematic wiring plan view of a steam distribution-side connection unit 110 of an embodiment of the steam distribution device 106, which is designed as a conventional steam gun, e.g. for connecting a hand nozzle and / or a floor nozzle 122 (as shown on the right in [Fig. 1 ]). The steam duct connection element 130 is also not shown.

[0141] The steam distribution device 106 in [Fig. 6] is for example a conventional steam distribution device 106 for backward compatible use. It is a unidirectional communication interface which is realized after the connection of the connection units 108, 110 because only analog signals are transmitted from the steam distribution device 106 to the steam production device 102.

[0142] The contact elements A' and B' are connected to each other, whereby after connection with the corresponding contact elements A and B of the connection unit 108 on the steam production side, a very low voltage of preferably 3.3 V or 5 V is applied between the pairs of contact elements A, A' and B, B'.

[0143] The applied extra-low voltage is converted into a permanent high signal by the first analog-to-digital converter, which is connected to the contact element B. The type of the connected steam distribution device 106 can be determined by means of the signal height; thus, a steam gun or floor nozzle 122 can be recognized here.

[0144] The contact element A' is further also connected to the contact element C', a switching element 180 being arranged in the connection between the contact element A' and the contact element C'.

[0145] Once the switching element 180 has been actuated by the user so that the connection between the contact elements A' and C' is closed, the very low voltage of 3.3 V applies between the connected pairs of contact elements A, A' and C, C'.

[0146] The very low voltage that is applied is detected by the second analog-to-digital converter, which is connected to the contact element C, and converted into a digital signal, which causes the valve element 158 ​​to be switched and the steam water can be conveyed by means of the pump 160 from the container 152 towards the steam distribution device 106.

[0147] The passage of steam to the steam distribution device 106 and the distribution of steam via the steam distribution device 106 can be interrupted or stopped by the user by means of the switching element 180 in that the connection between the contact elements A' and C' is interrupted by the open position of the switching element 180.

[0148] Here, the contact elements D', E' and G' are not occupied.

[0149] The contact elements F' and H' are connected to each other, whereby - as for the first embodiment in [Fig.5] - the two heating elements 142, 150 are switched on in parallel and together heat the water in the container 152.

[0150] In [Fig. 7] is shown a schematic wiring plan view of a steam distribution-side connection unit 110 of an embodiment of the steam distribution device 106, which is designed as a steam iron 120, as shown in the center in [Fig. 1]. The steam duct connection element 130 is therefore not shown either.

[0151] The steam distribution device 106 in [Fig. 7] is, for example, a steam distribution device 106 which is designed as an iron 120. In this case, it could be a conventional steam distribution device 106. It is also only a one-way communication interface which is implemented after the connection of the connection units 108, 110 because only analog signals are transmitted from the steam distribution device 106 to the steam generation device 102.

[0152] It should be understood that during the transmission of analog signals either an analog voltage value or a digital value is detected, i.e. in particular the “high” or “low” states.

[0153] Here too, the contact elements A' and B' are connected to each other, whereby after connection with the corresponding contact elements A and B of the connection unit 108 on the steam production side, a very low voltage is applied between the pairs of contact elements A, A' and B, B'.

[0154] A resistance element 182, preferably a 10 kΩ resistance, is however arranged in the connection between the contact elements A' and B', whereby the very low voltage which is applied is reduced; for example to approximately 1.7 V for a 10 kΩ resistance.

[0155] The reduced very low voltage which is applied, at a height of approximately 1.7 V for example, is converted by the first analog-to-digital converter of the microcontroller 133, which is connected to the contact element B, into a digital signal of approximately half the height. Due to the divergent signal height, the device electronics 126 can therefore recognize that a steam distribution device 106 of another type is connected, here an iron 120.

[0156] The contact element A' is also connected to the contact element C', a switching element 180 also being arranged in the connection between the contact element A' and the contact element C'. With regard to the switching of the solenoid valve 158 for distribution of water vapor, the situation is therefore identical to that described in connection with the second embodiment in [Fig.6].

[0157] The contact element D' is connected to a protective earth 184.

[0158] Contact elements E' and H' are not occupied.

[0159] The contact elements F' and G' are connected together, a third heating element 186 being arranged in the connection between the two contact elements F' and G'.

[0160] By connecting the contact element F' with the contact element G' the second heating element 150 is switched off and the first heating element 142 is switched on in parallel with the third heating element 186. As a result, only the first heating element 142 heats the water in the container 152, while the third heating element 186 heats the ironing soleplate in the iron 120.

[0161] It is advantageous that a conventional steam distribution device 106, such as for example formed by the floor nozzle 122 and the steam iron 120, can be recognized by the steam production device 102 even in the absence of a UART circuit and a corresponding microcontroller, so that said steam production device proves to be backward compatible via the connection unit 108 on the steam production side and can be used with conventional steam distribution devices 106.

[0162] List of reference signs 100 combined steam production and steam distribution device 102 steam production device 104 connection equipment 106 steam distribution device 108 steam production side connection unit 110 steam distribution side connection unit 112 plug-in connection 114 half plug steam production side 116 half plug steam distribution side 118 connecting duct 120 steam iron 122 floor nozzle 123 steam gun 124 accommodations 125 human-machine interface 1251 display unit 126 device electronics 127 gripping equipment 128 steam pipe connection element 130 steam pipe connection element 132 card 134 plug connection 136 sheet 138 relay circuit 140 plug connection 142 first heating element 144 thermal fuse 146 low water thermostat 148 pressure switch 150 second heating element 152 container 154 protective earth 156 plug connection 158 valve element 160 pump 162 DC motor 164 adjustment element 166 plug connection 168 fan 170 plug connection 176 plug connection 178 probe 180 switching element 182 resistance element 184 protective earth 186 third heating element A, A' pair of extra-low voltage contact elements B, B' first pair of data exchange contact elements C, C' second pair of data exchange contact elements D, D' pair of protective conductor contact elements E, E' pair of ground contact elements F, F' pair of supply voltage contact elements G, G' pair of supply voltage contact elements H, H' pair of supply voltage contact elements GND ground The outer conductor, phase N neutral conductor PE protective conductor RX receiving connection point TX sending connection point VCC very low voltage connection point

Claims

Claims

1. Combined steam generation and steam distribution device (100) comprising a connection equipment (104) for a detachable connection of the steam distribution device (106) with the steam generation device (102), which is in particular backward compatible, the connection equipment (104) comprising the following: - at least one steam generation-side connection unit (108) and at least one corresponding steam distribution-side connection unit (110), which can be detachably connected to each other for steam passage and electrical contact; - a steam conduit connection element (128) which the steam generation-side connection unit (108) comprises, and a corresponding steam conduit connection element (130) which the steam distribution-side connection unit (110) comprises;and - several pairs of contact elements (A, A', B, B', C, C', D, D', E, E', F, F', G, G', H, H') for implementing a communication interface by means of which analogue and / or digital signals can be transmitted, wherein each pair of contact elements (A, A', B, B', C, C', D, D', E, E', F, F', G, G', H, H') has a contact element (A, B, C, D, E, F, G, H), which is arranged in the connection unit (108) on the steam generation side, and a corresponding contact element (A', B', C', D', E', F', G', H'), which is arranged in the connection unit (110) on the steam distribution side, and in which the steam generation device (102) is arranged for one-way communication and / or bidirectional with the steam distribution device (106).;

2. Combined steam generation and steam distribution device (100) according to claim 1, characterized in that the contact elements (A, B, C, D, E, F, G, H) of the connection unit (108) on the steam generation side are connected to a device electronics (126) of the steam generation device (102), in particular to a card (132) of the device electronics (126).

3. Combined steam production and steam distribution device (100) according to claim 1 or 2, characterized in that the bidirectional communication interface comprises the following: - a pair of extra-low voltage contact elements (A, A'); - a first pair of data exchange contact elements (B, B'); - a second pair of data exchange contact elements (C, C'); - a pair of protective conductor contact elements (D, D') and / or a pair of ground contact elements (E, E'); and - in particular three pairs of supply voltage contact elements (F, F', G, G', H, H').

4. A combined steam production and steam distribution device (100) according to claim 3, characterized in that the first pair of data exchange contact elements (B, B') and the second pair of data exchange contact elements (C, C') have opposite data exchange directions.

5. Combined steam production and steam distribution device (100) according to claim 3 or 4, characterized in that the first pair of data exchange contact elements (B, B') has a receiving contact element (B) on the steam production side and a transmitting contact element (B') on the steam distribution side.

6. Combined steam production and steam distribution device (100) according to one of claims 3 to 5, characterized in that the second pair of data exchange contact elements (C, C') has a transmitting contact element (C) on the steam production side and a receiving contact element (C') on the steam distribution side.

7. Combined steam production and steam distribution device (100) according to one of claims 3 to 6, characterized in that the steam production-side contact element (B) of the first pair of data exchange contact elements (B, B') is connected to a first analog-to-digital converter of the device electronics (126), and / or in that the steam production-side contact element (C) of the second pair of data exchange contact elements (C, C') is connected to a second analog-to-digital converter of the device electronics (126).

8. Combined steam production and steam distribution device (100) according to claim 7, characterized in that the first analog-to-digital converter and / or the second analog-to-digital converter is integrated in a microcontroller (133) of the device electronics (126).

9. Combined steam production and steam distribution device (100) according to claim 7 or 8, characterized in that the contact element (B) on the steam production side of the first pair of data exchange contact elements (B, B') is configured such that digital and / or analog reception signals can be called up cyclically.

10. Combined steam production and steam distribution device (100) according to one of claims 7 to 9, characterized in that a level of a permanently applied voltage can be detected by means of the first analog-to-digital converter, and that the application of another voltage can be detected by means of the second analog-to-digital converter.

11. Combined steam generation and steam distribution device (100) according to one of the preceding claims, characterized in that the steam distribution device (106) comprises a human-machine interface (125) for user-side manipulation of the combined steam generation and steam distribution device (100), wherein the human-machine interface (125) is preferably arranged against a gripping device of the steam distribution device (106), and wherein the human-machine interface (125) has a microcontroller, which is connected to the contact elements (A', B', C', D', E', F', G', H') on the steam distribution side.

12. A combined steam generation and steam delivery device (100) according to claim 11, characterized in that the human-machine interface (125) comprises a UART circuit by means of which bidirectional serial communication can be achieved between the steam delivery device (106) and the steam generation device (102).

13. Combined steam production and steam distribution device (100) according to claim 11 or 12, characterized in that the human-machine interface (125) has a display unit, preferably a touch display unit, and / or at least one touch element.

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