Combined steam generation and steam output apparatus

Abstract

The invention relates to a combined steam-generating and steam-dispensing device (100) having a downwardly-compatible coupling device (104) for releasably connecting a steam-dispensing device (106) to a steam-generating device (102), in particular downwardly-compatible, in which the steam-generating device (102) is coupled to the coupling device (104). The coupling device (104) comprises the following:-at least one coupling unit (108) on the steam generation side and at least one corresponding coupling unit (110) on the steam output side, which can be detachably connected to each other for steam diversion and electrical contact; -a steam line coupling element (128) belonging to the coupling unit (108) on the steam generation side; and a corresponding steam line coupling element (130) belonging to the coupling unit (110) on the steam output side; and-a plurality of contact element pairs (A, A ', B, B', C, C ', D, D', E, E ', F, F', G, G ', H, H') for implementing a communication interface (109) by means of which analog and / or digital signals can be transmitted, each contact element pair (A, A ', B, B', C, C, C ', D, G, G', H, H ') having a contact element (A, B, C, D, E, F, G, H) which is arranged in the steam-generating-side connection unit (108) and a corresponding contact element (A', B ', C', D ', E', F ', G', H ') which is arranged in the steam-generating-side connection unit (108), the steam generating device (102) is arranged in the connection unit (110) on the steam output side, and wherein the steam generating device (102) is provided for one-way and / or two-way communication with the steam output device (106).

Description

Technical Field

[0001] This invention relates to a combined steam generating and steam output device with a coupling device for releasably connecting a steam output device to a steam generating device. The coupling device comprises: at least one coupling unit on the steam generating side and at least one corresponding coupling unit on the steam output side, which are releasably connected to each other for steam conduction and electrical contact; a steam line coupling element belonging to the coupling unit on the steam generating side, and a corresponding steam line coupling element belonging to the coupling unit on the steam output side; and a plurality of contact element pairs, wherein each contact element pair has a contact element arranged in the coupling unit on the steam generating side, and a corresponding contact element arranged in the coupling unit on the steam output side. Background Technology

[0002] In practice, combined steam generating and steam output devices with a connecting device for releasably connecting a steam output device and a steam generating device are known. Here, the connecting device not only connects the steam lines of the steam generating device and the steam output device for steam flow, but also simultaneously achieves electrical contact. Thus, for example, it can be achieved that the appliance electronics of the steam generating device, which controls steam generation and flow, identify the type of steam output device. Therefore, different steam output devices can be operated using the steam generating device.

[0003] Steam generating devices can be, for example, steam cleaners, which are compatible not only with steam cleaning guns or floor nozzles but also with steam irons. Using this combination of a steam cleaner, a steam cleaning gun or floor nozzle, and a steam iron, it is possible to selectively clean not only floors, different types of surfaces or accessories, but also iron clothing.

[0004] According to WO 2012 / 000768 A2, for example, a combined steam generating and steam output device is known, which has a coupling device for releasably connecting the steam output device and the steam generating device. With the aid of the coupling device, for example, an iron or a floor nozzle can be selectively operated. This combined steam generating and steam output device has proven effective in practice.

[0005] An improved vacuum cleaner is known according to EP 0430 478 A1, in which signal transmission from the handle of the tube to the suction motor is performed, thereby allowing the vacuum cleaner to be operated by the handle.

[0006] According to EP 1 121 891 A2, a control device is known that is detachably mounted on the handle of a cleaning appliance and is used to transmit user input to a receiving device in the appliance body. The control device is connected to various devices for controlling different functions of the cleaning appliance.

[0007] Furthermore, according to DE 94 08 167 U1, a circuit option for a steam ironing and cleaning appliance is known for coordinating the total power of the steam boiler heating unit and the iron heating unit. The iron is connected via a plug system containing a code that is identified by the steam generator. The control unit adjusts the power of the steam boiler heating unit accordingly.

[0008] The expectation is that information about the steam generating equipment can also be provided to the user on the steam output side, without having to abandon the connection devices used to date. Summary of the Invention

[0009] The objective of this invention is to provide a combined steam generation and steam output device with an improved connecting device.

[0010] This task is solved by a combined steam generating and steam output device according to the invention, which has a coupling device for releasably connecting the steam output device to the steam generating device, particularly being backward compatible. The coupling device comprises: at least one coupling unit on the steam generating side and at least one corresponding coupling unit on the steam output side, which are releasably connected to each other for steam conduction and electrical contact, and particularly for signal transmission; a steam line coupling element belonging to the coupling unit on the steam generating side, and a corresponding steam line coupling element belonging to the coupling unit on the steam output side; and a plurality of contact element pairs for implementing a communication interface by means of which analog and / or digital signals can be transmitted, wherein each contact element pair has a contact element arranged in the coupling unit on the steam generating side and a corresponding contact element arranged in the coupling unit on the steam output side, and wherein the steam generating device is configured for unidirectional and / or bidirectional communication with the steam output device.

[0011] This invention incorporates the consideration of providing a steam generating device, such as a steam appliance base station, to which various steam output devices, such as irons, steam guns, or floor nozzles, can be connected. Desirably, depending on the configuration of the respective steam output 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 implemented.

[0012] Utilizing known combined steam generating and steam output devices, such as those described in WO 2012 / 000768A2, unidirectional transmission of analog signals has been feasible to date; that is, the steam generating device detects which connected contact element pairs are energized and, if necessary, how high the voltage level is. In contrast, newer generations of steam output devices have been configured, for example, to independently evaluate user input on the one hand, and bidirectionally exchange analog and / or digital signals with the appliance electronics of the steam generating device on the other, by using at least one microcontroller and / or UART circuitry, wherein preferably another microcontroller is located on or part of the main circuit board of the steam generating device.

[0013] Therefore, the steam generating device of the present invention is preferably configured to not only work in conjunction with the new generation of steam output devices and implement a communication interface for signal transmission, but also to work backward compatible with the steam output devices commonly used to date.

[0014] Steam generating equipment and selected steam output equipment can be connected to each other via a coupling device, wherein the coupling device preferably includes two coupling units, one disposed on the steam generating equipment and the other connected to or disposed on the steam output equipment; that is, the coupling device includes a coupling unit on the steam generating side and a corresponding coupling unit on the steam output side. If the two coupling units are connected to each other as specified, it is feasible to guide steam from the steam generating equipment toward the connected steam output equipment. Furthermore, it is possible to transmit analog and / or digital signals, wherein the signals should be understood as the basic elements of analog and / or digital communication.

[0015] For steam diversion, the connecting device includes two corresponding steam line connecting elements, which are connected to each other by the engagement of the connecting unit. The connection between the steam line connecting elements is preferably sealed such that no steam enters the connecting device during steam diversion.

[0016] The contact elements arranged in the connection unit on the steam generation side are preferably designed as female contact elements in the form of a socket, while the contact elements arranged in the connection unit on the steam output side are preferably designed as male contact elements in the form of a plug.

[0017] However, it is also conceivable that the contact element on the steam generation side is designed as male, while the contact element on the steam output side is designed as female.

[0018] It should be understood that the contact elements are connected or interlocked with each other after the connection unit of the connection device is connected, that is, reliable signal transmission is feasible during the operation of the combined steam generation and steam output equipment.

[0019] It can be specified that the contact elements of the connection unit on the steam generation side are connected to the appliance electronics of the steam generation equipment, particularly to the circuit board of the appliance electronics. The appliance electronics include, for example, a circuit board, on which a microcontroller can be arranged, for example, in particular. Unless otherwise stated below, other elements or components are assumed to be known and are not listed separately. It is thus possible to process signals received from the steam output device or to send instructions to the steam output device in the form of signals.

[0020] Advantageously, the bidirectional communication interface includes the following: -Low-voltage contact element pair; - First data exchange contact element pair; -Second data exchange contact element pair; - Protective conductor contact pairs and / or grounding contact pairs; and - Especially the three power supply voltage contact element pairs.

[0021] The current supply to the steam output device is preferably ensured by using low-voltage contact elements.

[0022] In particular, the three power supply voltage contact elements are configured, for example, to supply power to the heating elements in the steam generating equipment and / or steam output equipment.

[0023] When connecting a steam output device in the form of a steam lance or a ground nozzle, it is preferable to supply power only to one or more heating elements in the steam generating device to heat the water contained in the container.

[0024] When connected to a steam output device in the form of an iron, it additionally has one or more heating elements that supply power to one or more heating elements of the steam generating device and one or more heating elements of the iron.

[0025] Furthermore, it can be specified that the first data exchange contact element pair and the second data exchange contact element pair have opposite data exchange directions.

[0026] The first data exchange contact element pair is configured, for example, to transmit a signal from the steam output device to the steam generating device, and conversely, the second data exchange contact element pair is configured to transmit a signal from the steam generating device to the steam output device. However, the opposite is also conceivable, whereby the first pair transmits the signal towards the steam output device, and the second pair transmits the signal towards the steam generating device.

[0027] It can be specified that the first data exchange contact element has a receiving contact element on the steam generation side and a transmitting contact element on the steam output side.

[0028] A contact element is preferably understood as a receiving contact element connected to a receiving connection point on a circuit board, thereby evaluating the signal received by the receiving contact element and being able to control and / or regulate steam generation and / or output accordingly.

[0029] A contact element is preferably understood as a transmitting contact element, which is connected to the transmitting connection point of the circuit board, so that instructions or commands can be sent to the steam output device in the form of signals through the transmitting contact element.

[0030] The connection of contact elements and other peripheral elements or components to the circuit board is preferably implemented by means of plug-in connection, and therefore the corresponding connection points are preferably implemented by means of pin connection.

[0031] Furthermore, it can be specified that the second data exchange contact element has a transmitting contact element on the steam generation side and a receiving contact element on the steam output side.

[0032] Furthermore, it is advantageous that the contact elements on the steam generation side of the first data exchange contact element pair are connected to the first analog-to-digital converter of the appliance electronics, and / or the contact elements on the steam generation side of the second data exchange contact element pair are connected to the second analog-to-digital converter of the appliance electronics. It can be specified that these analog-to-digital converters are identical, or that they are the same unit.

[0033] The first and / or second analog-to-digital converters are preferably integrated into the microcontroller of the appliance electronics. In other words, the functionality of the first and / or second analog-to-digital converters is preferably provided by the microcontroller of the appliance electronics.

[0034] Alternatively, the first and / or second analog-to-digital converters may also be designed as separate components, preferably arranged on or belonging to the circuit board of the appliance electronics and connected to the microcontroller of the appliance electronics.

[0035] By specifying the analog-to-digital converter (ADC) function on the corresponding contact elements of the first and second data exchange contact element pairs, it becomes possible to identify and operate older generation steam output devices. Through these two data exchange contact element pairs, the connected ADC can identify whether a steam output device is connected, what type of steam output device it is, and / or whether the steam output is activated or disabled.

[0036] Furthermore, it can be specified that the contact elements on the steam generation side of the first data exchange contact element pair are configured such that they are capable of periodically retrieving digital and / or analog received signals.

[0037] If the steam output device is connected to the steam generating device and is configured to implement a serial communication interface, then digital signals, i.e., high and low signals, are transmitted, for example, through the first and second data exchange contact elements, which can preferably be periodically invoked by the steam generating device.

[0038] When connecting older generation steam output devices, different circuits for controlling steam output and heating elements are implemented only through contact element pairs. For example, the analog-to-digital converter function of the first data exchange contact element pair can be periodically invoked to determine the application of continuous voltage.

[0039] For example, by applying a continuous voltage generated by connecting the low-voltage contact element and the first data exchange contact element of the connection unit on the steam output side to each other, it can be determined that the old generation steam output device has been connected to the backward compatible steam generating device.

[0040] The height of the continuously applied voltage level, which is adjustable, for example by arranging an ohmic resistor between the low-voltage contact element and the first data exchange contact element of the connection unit on the steam output side, allows the backward-compatible steam generating device to infer the type of the connected steam output device.

[0041] Therefore, when connecting an older generation of steam output device in the form of a ground nozzle that does not have a microcontroller and UART circuitry, a low voltage, such as about 0V to 12V, for example 0V to 5V, or in particular 3.3V to 5V, is applied between the low voltage contact element pair and the first data exchange contact element pair.

[0042] To differentiate this in backward-compatible use, for example in the case of older generation steam output devices in the form of an iron, half of the low voltage can be applied between the low voltage contact element pair and the first data exchange contact element pair by using an ohmic resistor.

[0043] The height or level of the voltage signal detected by the first data exchange contact element and converted by the first analog-to-digital converter is distinguishable from each other, directly or indirectly on the hand or ground nozzle of the handle device (which is, for example, a steam gun), iron, etc.

[0044] Advantageously, the level of the continuously applied voltage can be determined by means of the first analog-to-digital converter, and the application of other voltages can be determined by means of the second analog-to-digital converter.

[0045] Preferably, on the side of the older generation of steam output device, such as an iron or a steam gun without a device for serial communication, a low-voltage contact element is connected to a second data exchange contact element, wherein the connection is closed or opened by means of a switching element arranged in the connection.

[0046] Therefore, when the switching element is closed, a low voltage is applied between the low-voltage contact element and the second data exchange contact element.

[0047] The continuously applied low voltage is then detected by a second analog-to-digital converter connected to a second data exchange contact element on the steam generation side. The detected and converted signal then causes, for example, a valve element and / or a pump device to be activated, so that steam is output from the container toward the steam output device. The valve element may be a solenoid valve or may include a solenoid valve.

[0048] Conversely, by using a switching element to disconnect the connection between the low-voltage contact element and the second data exchange contact element of the connection unit on the steam output side, the valve element is closed, thereby disconnecting or stopping the steam delivery toward the steam output device.

[0049] Furthermore, it can be specified that the steam output device includes a human-machine interface (HMI) for user-side operation of the combined steam generation and steam output device, wherein the HMI is preferably disposed on the handle device of the steam output device, and wherein the HMI preferably has a microcontroller connected to the contact element on the steam output side, and through which it detects user input for controlling and / or regulating the combined steam generation and steam output device.

[0050] The human-machine interface allows users to directly configure the steam output process through the steam output device.

[0051] Alternatively or additionally, with the help of a human-machine interface, data or information about the status of the steam generating equipment, such as the water volume or steam temperature in the container, can be provided to the user. The user no longer needs to read this data or information from the steam generating equipment itself.

[0052] The microcontroller preferably processes the received user input and the information received by the steam generating device, and forwards the results to the steam generating device or the user.

[0053] Advantageously, the human-machine interface includes a UART circuit, which enables serial bidirectional communication between the steam output device and the steam generation device.

[0054] A UART circuit can be used to establish a serial communication interface between steam output equipment and steam generation equipment, enabling bidirectional exchange of digital signals.

[0055] UART circuits especially require four connections or lines, such as one for supplying low voltage, one for transmitting signals, one for receiving signals, and a ground connection to a reference potential for the circuit to ensure the functionality of the steam output device.

[0056] Therefore, serial communication interfaces require fewer wires, thus reducing cost and installation complexity. Furthermore, the communication interface supports data transmission over longer distances, allowing steam generating and steam output devices to be used separately from each other.

[0057] In addition, it can be specified that the human-machine interface has a display unit, preferably a touch display unit, and / or at least one button element.

[0058] The user can make inputs to set the steam output via the display unit and / or at least one button element.

[0059] In addition, a display unit can be used to display comprehensive information, such as the operating options for the steam output device or the liquid level of the heating tank. Attached Figure Description

[0060] The following description of the preferred embodiments is provided to illustrate the invention in more detail with reference to the accompanying drawings. In the drawings: Figure 1 This illustration shows a preferred embodiment of the steam generation and steam output device according to the present invention; Figure 2 : A top view showing a preferred embodiment of the coupling unit on the steam generation side of the coupling device according to the present invention; Figure 3 : A top view showing a preferred embodiment of the coupling unit on the steam output side of the coupling device according to the present invention; Figure 4 : A schematic circuit diagram showing the appliance electronic components of a steam generating apparatus according to the present invention; Figure 5 : A schematic circuit diagram showing the connection unit on the steam output side of a first embodiment of the steam output device according to the present invention; Figure 6 A schematic circuit diagram showing the connection unit on the steam output side of a second embodiment of the steam output device according to the present invention; and Figure 7 : A schematic circuit diagram showing the connection unit on the steam output side of a third embodiment of the steam output device according to the present invention. Detailed Implementation

[0061] Figure 1 The illustration schematically shows a preferred embodiment of the combined steam generation and steam output device 100 according to the present invention.

[0062] The combined steam generating and steam output device 100, hereinafter referred to as device 100, includes a steam generating device 102, which can be connected to one of the three exemplary steam output devices 106 by means of a coupling device 104.

[0063] The connection device 104 includes a connection unit 108 on the steam generation side and a corresponding connection unit 110 on the steam output side, which are detachably connected for steam flow and electrical contact. Here, bidirectional communication via the connection unit 108 is possible.

[0064] If the connection unit 108 on the steam generating side and the connection unit 110 on the steam output side are connected to each other, the entire assembly can realize a communication interface in the connection device 104, which can realize the transmission of signals and / or data between the steam output device 106 and the steam generating device 102.

[0065] The connecting device 104 is preferably designed as a plug-in connection 112, wherein the connecting units 108 and 110 are designed as a plug half 114 on the steam generation side or a plug half 116 on the steam output side.

[0066] Further details regarding the connecting device 104 will be provided below. Figures 2 to 7 Explanation.

[0067] The connection unit 108 on the steam generating side is arranged on the steam generating device 102. Conversely, the corresponding steam output device 106 has a corresponding connection unit 110, which is preferably connected to the steam output device 106 via a connection line 118.

[0068] Figure 1 An exemplary embodiment of a steam output device 106 is shown, which is designed as a steam iron 120 (in Figure 1 (shown in the center), and different implementations of the steam output device 106, which are designed to have handheld nozzles and / or ground nozzles 122 (in Figure 1 A simple steam gun (not shown) is shown on the right. Figure 1 As shown, the steam iron 120 is currently 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, so that the two connection units 108, 110 of the connection device 104 are connected to each other for the prescribed operation of the device 100.

[0069] Another preferred embodiment of the steam output device 106 of the device 100 according to the invention is designed as a steam spray gun 123 (in Figure 1(Seen on the left) and preferably includes a Human-Machine Interface (HMI) 125, which is preferably arranged on or near the handle 127 of the steam gun 123, so that the user can operate the device 100 through the HMI 125. The steam gun 123 is connected here to the ground nozzle 122 via a fitting. Alternatively, a handheld nozzle may be provided, which is directly connected to the steam gun 123.

[0070] Here, the steam generating device 102 includes a housing 124 equipped with rollers.

[0071] Install its own known features in housing 124. Figure 1 An electric heating device, not shown, is used for heating in the same way that is known in itself and in Figure 1 Water is heated in a container not shown in the diagram or in an instant heater. The water can be evaporated by heating and selectively directed via connection device 104 to any other embodiment of the steam iron 120, floor nozzle 122, or steam output device 106.

[0072] In addition, the steam generating device 102 includes appliance electronics 126, which will be combined in the following Figure 4 To elaborate further.

[0073] At the free end of the steam output device 106, different nozzle accessories can be selectively connected depending on the intended use.

[0074] The human-machine interface 125 includes a connection unit 110 on the steam output side and / or is electrically connected thereto, in particular.

[0075] In addition, the human-machine interface 125 includes a microcontroller, a display unit 1251, and / or at least one button element.

[0076] The microcontroller can process user input on the one hand, and provide data to the steam generating device 102 on the other hand.

[0077] The display unit 1251 is preferably designed as a touchscreen, which allows the user to input their operational expectations, such as selecting a desired function from a displayed menu or obtaining information about the status of the device 100.

[0078] Alternatively or additionally, the user may also operate the device 100 via at least one button element.

[0079] The human-machine interface 125 is, for example, fixedly integrated into the steam gun 123 or releasably connected to the steam gun 123, so that maintenance work, such as battery replacement or microcontroller firmware update, can be performed on the human-machine interface 125 in a simple manner when necessary.

[0080] Figure 2 A top view showing a preferred embodiment of the connection unit 108 on the steam generation side of the connection device 104.

[0081] The connection unit 108 on the steam generation side includes a steam line connection element 128, and in existing examples, it includes: -Low-voltage contact element A; -First data exchange contact element B; -Second data exchange contact element C; -Protective conductor contact element D; - Grounding contact element E; and - Three power supply voltage contact elements F, G, and H.

[0082] Figure 3 A top view of a preferred embodiment of the connection unit 110 on the steam output side of the connection device 104 is shown in a corresponding manner.

[0083] The connection unit 110 on the steam output side includes a steam line connection element 130 corresponding to the steam line connection element 128, and

[0084] -Low-voltage contact element A' corresponding to low-voltage contact element A; - The first data exchange contact element B' corresponding to the first data exchange contact element B; - The second data exchange contact element C' corresponding to the data exchange contact element C; - Protective conductor contact element D' corresponding to protective conductor contact element D; - The grounding contact element E' corresponding to the protective conductor contact element E; and - Three power supply voltage contact elements F', G', and H', which correspond to the three power supply voltage contact elements F, G, and H respectively.

[0085] It should be understood that contact elements in Figure 2 and Figure 3 The spatial arrangement schemes in the connection units 108 and 110 are merely exemplary, and correspondingly other arrangement schemes are also feasible.

[0086] Here, contact elements A to H are female contact elements in the form of sockets, while contact elements A' to H' are designed as pin-shaped male contacts. It is also permissible that contact elements A to H are designed as male, and contact elements A' to H' as female.

[0087] The advantages of the arrangement of steam line connecting elements 128, 130, contact elements A to H or A' and H', and other elements of connecting units 108, 110 and their corresponding functions can be obtained, for example, from WO 2012 / 000768 A1.

[0088] Figure 4 A schematic circuit diagram showing a preferred embodiment of the appliance electronics 126 of the steam generating device 102 according to the present invention.

[0089] Regarding the connection unit 108 on the steam generation side, only contact elements A to H are schematically shown; their corresponding implementation in the appliance electronics 126 will be the focus of attention below.

[0090] The appliance electronics 126 includes a circuit board 132 that controls and / or regulates connected or coupled elements or components, on which a microcontroller 133 is disposed, which, in particular, implements one or more analog-to-digital converters at one or more contact elements A to H of the connection unit 110 on the steam generation side.

[0091] Circuit board 132 is connected to male connection element 136 via plug-in connection 134. With the help of connection element 136, device 100 can be connected to an energy supply grid to supply grid voltage to device 100.

[0092] Plug 136, for example, has a neutral conductor N, an outer conductor L, and a protective conductor PE.

[0093] Here, relay circuit 138 is arranged on circuit board 132, which can be used to close the circuit between neutral conductor N and outer conductor L or to open the circuit for standby mode.

[0094] The first heating element 142 is connected to the circuit board 132 via a plug-in connection 140. A thermal fuse 144 can be arranged in one of the electrical connection lines, and a water shortage thermostat 146 and a pressure switch 148 can be arranged in another electrical connection line. The thermal fuse 144 is used to shut off the first heating element 142 when a critical over-temperature is reached.

[0095] The first heating element 142 preferably has a heating power of at least about 1000W or higher.

[0096] The second heating element 150 is connected in parallel with the first heating element 142, and preferably can be turned on or off separately from the first heating element 142.

[0097] The second heating element 150 preferably has a heating power of 700W, and is preferably switched on depending on the type of the connected steam output device 106.

[0098] Water contained in a container, and especially in heater 152, can be evaporated by means of the first and / or second heating elements 142, 150.

[0099] The water shortage temperature controller 146 is controlled and / or regulated by the microcontroller 133.

[0100] Pressure switch 148 monitors the pressure in container 152 during operation. The first heating element 142 shuts off when the maximum operating pressure in container 152 is reached and reconnects when the pressure in container 152 drops due to steam extraction.

[0101] The container 152 has a connector 154 for protective grounding, which is connected to the protective conductor PE of the plug 136.

[0102] Here, the valve element 158, which is designed as a solenoid valve, and the pump 160 are connected to the circuit board 132 via a plug-in connection 156.

[0103] Valve element 158 ​​opens to output steam, and pump 160 delivers steam flow toward steam output device 106.

[0104] Another valve element 162, which is connected to the circuit board 132 via a plug-in connection 166, is used for the control and / or regulation of the steam output.

[0105] In addition, the circuit board 132 is connected to the fan 168, for example, via a plug-in connection 170, which provides air cooling for cable reels or the like.

[0106] In addition, the circuit board 132 is connected to the LED circuit board 174 via the plug-in connection 172, which allows the user to see different states or operating modes of the steam generating device 100 on the steam generating device 102.

[0107] Here, the contact elements A, B, C and E of the connection unit 108 on the steam generation side are connected to the circuit board via the plug-in connection 176.

[0108] Contact element A is connected to the low-voltage connection point VCC (voltage at the common collector) of circuit board 132, through which a low voltage of, for example, 3.3V or 5V is provided, and it is preferably connected to microcontroller 133.

[0109] Contact element B is connected to the receive connection point RX of circuit board 132, through which circuit board 132 receives signals for subsequent further processing or evaluation.

[0110] Furthermore, the receiving connection point RX is directly or indirectly connected to the first analog-to-digital converter, which is preferably provided by the microcontroller 133, so that it is feasible to detect and evaluate not only digital signals but also analog signals by means of the contact element B as a whole.

[0111] Contact element C is connected to the transmit connection point TX of circuit board 132, through which signals can be transmitted.

[0112] The transmit connection point TX is connected directly or indirectly to a second analog-to-digital converter, preferably also provided via the microcontroller 133, so that not only digital signals can be transmitted via contact element C, but analog signals can also be detected and evaluated. Alternatively, the transmit connection point TX is directly connected to a digital input pin of the microcontroller 133.

[0113] It should be understood that not only can digital signals be received through contact element B or receiving connection point RX, but the type of the connected steam output device 106 can also be identified through the additional function of the first analog-to-digital converter.

[0114] The signal retrieval by receiving the connection point RX is preferably implemented periodically, wherein, in the case of the input digital signal of the steam output device 106, which has, for example, a UART circuit for digital communication, detects the voltage level change between "high" and "low".

[0115] The first analog-to-digital converter is also preferably called periodically, wherein the type of the connected steam output device 106 can be inferred by detecting the continuous voltage level and calculating the voltage level height.

[0116] If a continuous zero or low signal is detected during periodic signal query, the steam output device 106 is identified as not connected, for example.

[0117] Preferably, the second analog-to-digital converter is activated only when a steam output device 106 is determined by means of the first analog-to-digital converter to be not configured for or unable to perform digital communication.

[0118] Contact element D is connected to the protective ground 154 of container 152, and contact element E is connected to the ground connection GND of circuit board 132.

[0119] Contact element F is connected to the outer conductor L of plug 136, and contact element G is connected to the neutral conductor N of plug 136.

[0120] The contact element H is connected to the second heating element 150.

[0121] Connector 176 also establishes a connection between probe 178 and circuit board 132. Probe 178 is positioned in container 152 and monitors water temperature or steam temperature there.

[0122] It should be understood that the plug connections 134, 140, 156, 166, 170, 172, and 176 represent only one possibility for electrically connecting the corresponding component or assembly to circuit board 132. Alternatively, the corresponding component may also be directly connected to its corresponding connection point on circuit board 132.

[0123] Figure 5 A schematic circuit diagram of the connection unit 110 on the steam output side of one embodiment of the steam output device 106 is shown. The steam output device is designed as a steam nozzle 123, as... Figure 1 As shown on the left. Steam line connection element 130 is not shown here.

[0124] exist Figure 5 The steam output device 106 is preferably a steam output device 106 with a human-machine interface (HMI) 125, which has a microcontroller and UART circuit and a display unit 1251.

[0125] This steam output device 106 can realize a two-way communication interface between the steam output device 106 and the steam generating device 102, through which digital signals can be exchanged.

[0126] A steam output device 106, such as a steam nozzle 123, with a human-machine interface 125 allows the user to operate or set up the entire device 100 from the steam output device 106. This is advantageous because the typically heavier steam generating device 102 is usually located on the ground and spatially separated from the steam output device 106. Consequently, the user preferably does not need to perform settings on the steam generating device 102 during the operation of the device 100, and can remain at the work location.

[0127] Accordingly, contact element A' is provided for supplying a low voltage, preferably 3.3V or 5V, to the human-machine interface 125, especially the microcontroller, together with the corresponding contact element A of the connection unit 108 on the steam generation side.

[0128] Contact element B' is connected to the transmit connection point TX of the microcontroller, and can transmit the digital signal of the microcontroller to the corresponding contact element B of the connection unit 108 on the steam generation side or the steam generation device 102, which is connected to the receive connection point RX of the circuit board 132.

[0129] Conversely, the contact element C' is connected to the receiving connection point RX of the microcontroller, and can receive digital signals from the corresponding contact element C of the connection unit 108 on the steam generation side or the steam generation device 102, which is connected to the transmitting connection point TX of the circuit board 132.

[0130] Contact element E' is connected to the corresponding ground GND through the corresponding contact element E.

[0131] Contact elements D' and G' are not occupied here.

[0132] Contact elements F' and H' are connected to each other, so that after the corresponding contact elements F and H are connected to the connection unit 108 on the steam generation side, the grid voltage is applied as the supply voltage between the neutral conductor N and the outer conductor L, and the first and second heating elements 142, 150 of the steam generation device 102 are connected in parallel to heat and evaporate the water in the container 152.

[0133] On a steam output device 106, which has a human-machine interface 125 and is designed as a steam nozzle 123, the following settings or operation options can be performed via the human-machine interface 125: -Start / stop steam output, - Set the steam volume - Steam modes (continuous steam, intermittent steam, increase / decrease steam pressure, user-defined mode, etc.) -Activate / disable child protection, - Application tips for attachments, - Application tips for descaling - Settings, and - Output information.

[0134] exist Figure 6 The diagram shows a schematic circuit diagram of the connection unit 110 on the steam output side of one embodiment of the steam output device 106, which is designed as a conventional steam gun, for example for connecting a handheld nozzle and / or a ground nozzle 122 (such as...). Figure 1 (As shown on the right). Steam line connection element 130 is also not shown.

[0135] exist Figure 6 The steam output device 106 in the example is a conventional steam output device 106 for backward compatible applications. A one-way communication interface is implemented after the connection units 108 and 110 are connected because only analog signals are transmitted from the steam output device 106 toward the steam generating device 102.

[0136] Contact elements A' and B' are connected to each other, thereby applying a low voltage, preferably 3.3V or 5V, between the contact elements A, A' and B, B' after they are connected to the corresponding contact elements A and B of the connection unit 108 on the steam generation side.

[0137] The applied low voltage is converted into a continuous high signal by a first analog-to-digital converter (ADC), which is connected to contact element B. The type of the connected steam output device 106 can be determined by the signal height; in this case, it is either a steam gun or a ground nozzle 122.

[0138] In addition, contact element A' is also connected to contact element C', wherein switch element 180 is arranged in the connection between contact element A' and contact element C'.

[0139] Once the user operates the switching element 180 such that the connection between contact elements A' and C' is closed, a low voltage of 3.3V is applied between the connected contact elements A, A' and C, C'.

[0140] The applied low voltage is detected by a second analog-to-digital converter and converted into a digital signal. This second analog-to-digital converter is connected to contact element C. The digital signal causes valve element 158 ​​to be turned on, and water vapor is delivered from container 152 toward steam output device 106 by means of pump 160.

[0141] The steam flow to the steam output device 106 and the steam output through the steam output device 106 can be disconnected or stopped by the user using the switching element 180, in the form that the connection between the contact elements A' and C' is disconnected by the open position of the switching element 180.

[0142] Contact elements D', E', and G' are not occupied here.

[0143] Contact elements F' and H' are connected to each other, thus, as in Figure 5 As in the first embodiment, the two heating elements 142 and 150 are connected in parallel and together heat the water in container 152.

[0144] Figure 7 A schematic circuit diagram of the connection unit 110 on the steam output side of one embodiment of the steam output device 106 is shown. The steam output device is designed as a steam iron 120, such as... Figure 1 As shown in the diagram. Therefore, the steam line connection element 130 is also not shown.

[0145] exist Figure 7The steam output device 106 in the example is a steam output device 106 designed as an iron 120. Here, it may be a conventional steam output device 106. After the connection units 108 and 110 are connected, only a one-way communication interface is implemented, because only analog signals are transmitted from the steam output device 106 toward the steam generating device 102.

[0146] It should be understood that when transmitting analog signals, either analog voltage values ​​or digital values ​​are detected, i.e., especially the state "high" or "low".

[0147] Here, contact elements A' and B' are also connected to each other, thereby applying a low voltage between contact elements A, A' and B, B' after they are connected to the corresponding contact elements A and B of the connection unit 108 on the steam generation side.

[0148] However, a resistive element 182, preferably a 10kΩ resistor, is arranged in the connection between contact elements A' and B', thereby reducing the applied low voltage; for example, it is reduced to about 1.7V in the case of a 10kΩ resistor.

[0149] The applied, reduced, exemplary low voltage of approximately 1.7V is converted into a digital signal at approximately half the height by a first analog-to-digital converter of the microcontroller 133, which is connected to contact element B. The appliance electronics can identify the connected type of steam output device 106, in this case, the iron 120, by the different signal heights.

[0150] Contact element A' is also connected to contact element C', and a switching element 180 is also arranged in the connection between contact element A' and contact element C'. This is for switching the solenoid valve 158 used for outputting steam, and therefore connected to... Figure 6 The second implementation scheme is the same and applies here.

[0151] Contact element D' is connected to protective ground 184.

[0152] Contact elements E' and H' are not occupied.

[0153] Contact elements F' and G' are connected to each other, wherein a third heating element 186 is arranged in the connection between the two contact elements F' and G'.

[0154] By connecting contact element F' and contact element G', the second heating element 150 is turned off, and the first heating element 142 and the third heating element 186 are connected in parallel. Therefore, only the first heating element 142 heats the water in the container 152, while the third heating element 186 in the iron 120 heats the soleplate.

[0155] Advantageously, conventional steam output devices 106, such as those via ground nozzles 122 and steam irons 120, can be recognized by steam generating devices 102 even in the absence of UART circuitry and corresponding microcontrollers, thus proving to be backward compatible via the connection unit 108 on the steam generating side and usable with conventional steam output devices 106.

[0156] List of reference numerals

[0157] 100 Combined Steam Generation and Steam Output Equipment

[0158] 102 Steam generating equipment

[0159] 104 Connecting Device

[0160] 106 Steam Output Equipment

[0161] 108 Connection unit on the steam generation side

[0162] 110 Steam output side connection unit

[0163] 112 plug-in connection

[0164] 114 Steam generation side plug half

[0165] Plug half on the steam output side of 116

[0166] 118 connection line

[0167] 120 steam iron

[0168] 122 ground nozzle

[0169] 123 Steam Gun

[0170] 124 housing

[0171] 125 Human-Machine Interface

[0172] 1251 display unit

[0173] 126 Appliance Electronic Components

[0174] 127 handle device

[0175] 128 Steam Line Connection Components

[0176] 130 Steam Line Connection Components

[0177] 132 circuit board

[0178] 134 plug-in connection

[0179] 136 plug

[0180] 138 relay circuit

[0181] 140 plug connection

[0182] 142 First heating element

[0183] 144 thermal fuse

[0184] 146 Water Shortage Thermostat

[0185] 148 pressure switch

[0186] 150 Second heating element

[0187] 152 containers

[0188] 154 Protective Grounding

[0189] 156 plug-in connection

[0190] 158 valve element

[0191] 160 pump

[0192] 162 DC motor

[0193] 164 Adjustment Elements

[0194] 166 plug-in connection

[0195] 168 fan

[0196] 170 plug connection

[0197] 176 plug-in connection

[0198] 178 probe

[0199] 180 switching element

[0200] 182 resistor element

[0201] 184 protective grounding

[0202] 186 Third Heating Element

[0203] A, A' Low-voltage contact element pair

[0204] B, B' First Data Exchange Contact Element Pair

[0205] C, C' Second Data Exchange Contact Element Pair

[0206] D, D' Protective conductor contact element

[0207] E, E' grounding contact element pair

[0208] F, F' power supply voltage contact element

[0209] G, G' power supply voltage contact element

[0210] H, H' power supply voltage contact element

[0211] GND ground

[0212] L is the outer conductor, and the phase line is...

[0213] N neutral conductor

[0214] PE protective conductor

[0215] RX receiver connection point

[0216] TX transmit connection point

[0217] VCC low voltage connection point

Claims

1. A combined steam generating and steam output device (100) having a coupling device (104) for releasably connecting a steam output device (106) to a steam generating device (102), said steam generating device being particularly backward compatible, wherein, The connecting device (104) includes the following: - At least one steam generation side connection unit (108) and at least one corresponding steam output side connection unit (110), which can be loosely connected to each other for steam conduction and electrical contact; - A steam line connection element (128), belonging to the connection unit (108) on the steam generation side; and a corresponding steam line connection element (130), belonging to the connection unit (110) on the steam output side; and Multiple contact element pairs (A, A', B, B', C, C', D, D', E, E', F, F', G, G', H, H') are used to implement a communication interface, through which analog and / or digital signals can be transmitted. Each contact element pair (A, A', B, B', C, C', D, D', E, E', F, F', G, G', H, H') has contact elements (A, B, C, D, E, F, G, H) arranged in the connection unit (108) on the steam generation side and corresponding contact elements (A', B', C', D', E', F', G', H') arranged in the connection unit (110) on the steam output side. The steam generating device (102) is configured to communicate unidirectionally and / or bidirectionally with the steam output device (106).

2. The combined steam generating and steam output 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 generating side are connected to the appliance electronics (126) of the steam generating device (102), and in particular to the circuit board (132) of the appliance electronics (126).

3. The combined steam generating and steam output device (100) according to claim 1 or 2, characterized in that, The bidirectional communication interface includes the following: -Low-voltage contact element pair (A, A'); - First data exchange contact element pair (B, B'); - Second data exchange contact element pair (C, C'); - Protective conductor contact pairs (D, D') and / or grounding contact pairs (E, E'); and - Especially the three power supply voltage contact element pairs (F, F', G, G', H, H').

4. The combined steam generating and steam output device (100) according to claim 3, characterized in that, The first data exchange contact element pair (B, B') and the second data exchange contact element pair (C, C') have opposite data exchange directions.

5. The combined steam generating and steam output device (100) according to claim 3 or 4, characterized in that, The first data exchange contact element pair (B, B') has a receiving contact element (B) on the steam generation side and a transmitting contact element (B') on the steam output side.

6. The combined steam generating and steam output device (100) according to any one of claims 3 to 5, characterized in that, The second data exchange contact element pair (C, C') has a transmitting contact element (C) on the steam generation side and a receiving contact element (C') on the steam output side.

7. The combined steam generating and steam output device (100) according to any one of claims 3 to 6, characterized in that, The contact element (B) on the steam generation side of the first data exchange contact element pair (B, B') is connected to the first analog-to-digital converter of the appliance electronics (126), and / or the contact element (C) on the steam generation side of the second data exchange contact element pair (C, C') is connected to the second analog-to-digital converter of the appliance electronics (126).

8. The combined steam generating and steam output device (100) according to claim 7, characterized in that, The first analog-to-digital converter and / or the second analog-to-digital converter are integrated in the microcontroller (133) of the appliance electronics (126).

9. The combined steam generating and steam output device (100) according to claim 7 or 8, characterized in that, The contact element (B) on the steam generation side of the first data exchange contact element pair (B, B') is configured such that digital and / or analog received signals can be retrieved in a periodic manner.

10. The combined steam generating and steam output device (100) according to any one of claims 7 to 9, characterized in that, The level of the continuously applied voltage can be determined using the first analog-to-digital converter, and the application of other voltages can be determined using the second analog-to-digital converter.

11. The combined steam generating and steam output device (100) according to any one of the preceding claims, characterized in that, The steam output device (106) includes a human-machine interface (125) for operating the combined steam generating and steam output device (100) from the user's side. The human-machine interface (125) is preferably arranged on the handle of the steam output device (106), and the human-machine interface (125) has a microcontroller connected to the contact elements (A', B', C', D', E', F', G', H') on the steam output side.

12. The combined steam generating and steam output device (100) according to claim 11, characterized in that, The human-machine interface (125) includes a UART circuit, which enables serial bidirectional communication between the steam output device (106) and the steam generating device (102).

13. The combined steam generating and steam output 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 button element.

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