DE102015205638A1 - Actuator arrangements for valves and method for operating actuator arrangements - Google Patents

Abstract

More particularly, the invention relates to an actuator arrangement for a valve, comprising an actuator (10) for actuating a shut-off element (901) of the valve (402, 500, 900); at least one thermal generator (20) which generates an electrical voltage and an electric current under the influence of a temperature gradient in the region of the valve, and / or at least one temperature sensor for determining a temperature in the region of the valve and / or an ambient temperature; and at least one evaluation unit (80, 801) for evaluating an electrical voltage generated by the thermal generator (20), an electrical current generated by the thermal generator (20) and / or the temperature determined by the temperature sensor in the region of the valve (402, 500, 900) and / or the ambient temperature.

Description

The invention relates to actuator arrangements for valves according to claims 1, 13, 16, 17, 21 and to methods for operating such actuator arrangements according to the preambles of claims 23 and 24.

From the prior art, e.g. Actuator arrangements for adjusting valves, in particular of HeizkOperventilen known, with the aid of a (in particular motorized) actuator of the actuator assemblies, in particular the position of a shut-off of the valve (eg, a valve body of a Heizköperventils) is moved to the position of the shut-off element and thus the flow of a medium to control the valve (and thus eg by a radiator). Such actuator assemblies are, for example, components for local / individual control of radiators or components of a home automation system, e.g. Set commands or temperature setpoints are sent from a central unit of the home automation system to the actuators; for example, to adjust a valve position depending on a desired room temperature. In such a control of the actuators, however, it can lead to unnecessary positioning movements of the actuators.

The problem underlying the invention is to provide the most accurate and efficient controllable actuator assembly for a valve.

This problem is solved by the actuator assemblies having the features according to claims 1, 13, 16, 17, 21 and by the methods for operating such actuator assemblies according to the features of claims 23 and 24. Further developments of the invention are specified in the dependent claims.

• – einem Stellantrieb zum Betätigen eines Absperrelementes des Ventils (insbesondere eines Ventilunterteils eines Heizkörperventils;
• – mindestens einem Thermogenerator, der unter Einwirkung eines Temperaturgefälles im Bereich des Ventils eine elektrische Spannung und einen elektrischen Strom erzeugt (die z.B. zum Erzeugen von Energie für den Betrieb des Stellantriebes genutzt wird, insbesondere, um eine energieautarke Stellantriebsanordnung zu schaffen), und/oder mindestens einen Temperatursensor zum Bestimmen einer Temperatur im Bereich des Ventils (insbesondere im Bereich des Absperrelementes) und/oder einer Umgebungstemperatur (d.h. einer Temperatur der Umgebung des Ventils und/oder des Stellantriebes); sowie
• – mindestens einer Auswerteeinheit zum Auswerten der von dem Thermogenerator erzeugten elektrischen Spannung, des von dem Thermogenerator erzeugten elektrischen Stromes und/oder der mit dem Temperatursensor bestimmten Temperatur des Ventils und/oder der Umgebungstemperatur.

Thereafter, an actuator assembly for a valve, in particular for a radiator valve, provided with

• - An actuator for actuating a shut-off of the valve (in particular a valve lower part of a radiator valve;
• - At least one thermal generator, which generates an electrical voltage and an electric current (which is eg used to generate energy for the operation of the actuator under the action of a temperature gradient in the region of the valve, in particular to provide a self-powered actuator assembly), and / or at least one temperature sensor for determining a temperature in the region of the valve (in particular in the region of the shut-off element) and / or an ambient temperature (ie a temperature of the surroundings of the valve and / or the actuator); such as
• At least one evaluation unit for evaluating the electrical voltage generated by the thermal generator, the electric current generated by the thermal generator and / or the temperature of the valve and / or the ambient temperature determined by the temperature sensor.

The shut-off element of the valve is moved via the actuator relative to an opening of the valve through which a medium flows, the opening being more or less closed depending on the position of the shut-off element. By moving the shut-off can be adjusted according to the flow of the medium. It should be noted that a "valve" is understood in particular to mean a device which has or has formed at least the opening through which the medium flows as well as the shut-off element.

For example, at least approximately a temperature in the region of the valve (in particular shut-off element can be determined based on the voltage generated by the thermogenerator or generated by the thermogenerator, which can be determined, for example, whether the valve is open (higher valve temperature and thus higher thermal generator voltage) or It is also conceivable that intermediate positions of the valve (ie intermediate positions of the actuator) can be determined on the basis of the thermo generator voltage or the thermogenerator current, the intermediate positions also correlating in particular also with the valve temperature and thus with the thermogenerator voltage In other words, the thermogenerator serves as a measuring means (here as a temperature sensor), where it is conceivable that it is used exclusively as a measuring means and not for the power supply of the actuator .. It is also possible that the thermogenerator fulfills both functions, ie probably for energy supply in particular the actuator is used, as well as measuring functions takes over. In addition, the thermogenerator does not necessarily cover all of the actuator's energy needs, but it may also provide only part of the energy needed, such as to support a battery (for example, extending battery life).

By determining the valve temperature, information can also be provided about a flow temperature (i.e., the temperature of a medium flowing into the valve) and / or a heat flow.

On the basis of a determined flow temperature, for example, the behavior of a Heating system with at least one heating valve, which has the actuator assembly according to the invention, to be analyzed. For example, in such a way that measured in a steady state in accordance with room temperature fluctuations of a (in particular correlated with the temperature of the valve body or identical with this temperature flow temperature (eg> 5 ° C / min) on the absence of an actuator (3-point mixer ) clues. Associated efficiency losses (eg> 20%) can be made available to a user.

By means of the thermogenerator current and / or the thermo-generator voltage, e.g. Also, the function of the actuator (such as in a final inspection) and / or the thermal generator to be checked.

For example, the aging behavior of the thermal generator and / or the shut-off element can be monitored. For example, the aging behavior may manifest itself in such a way that constant setting positions of the shut-off element can lead to sludge and / or seal aging / changes with lower thermal generator voltages over the course of time, and / or constant setting positions with higher thermogenerator voltages over time on larger flow and thus eg Sealing changes, indicate closure problems. Thus, the actuator assembly according to the invention allows e.g. an increased operational safety. The knowledge of the valve temperature also allows the most accurate and comfortable adjustment of the valve, the valve temperature can be as already indirectly determined by evaluating the voltage and / or the current of the thermogenerator when using a thermogenerator for powering the actuator.

However, it is also conceivable that the valve temperature can be adjusted by means of e.g. in the region of the shut-off element (in particular in the region of a connection of a valve lower part and / or a valve head, if it is a radiator valve) mounted temperature sensor is determined, which in particular an efficient operation (in particular their regulation) and the most accurate determination of the flow temperature also from Actuator arrangements allowed, which are not supplied by thermogenerator (Thermoharvester), but by means of another energy converter or a (in particular rechargeable) battery with energy. Based on the flow temperature and thus, for. a heating circuit temperature may e.g. and, among other things, the type and / or type of heating used (e.g., district heating, low temperature, condensing technology, etc.). For example, users can be alerted to potential efficiency losses and potential for improvement.

Moreover, the actuator assembly of the present invention may include at least one temperature sensor for measuring a temperature of a heat sink coupled to the thermal generator (e.g., formed as part of the actuator). Since the thermogenerator voltage and the thermogenerator current depends in particular on a temperature gradient between the heat sink and the radiator valve, it is possible to infer the temperature of the valve (in particular in the area of the shut-off element) from the thermogenerator voltage or the thermogenerator current when the heat sink temperature is known.

According to another embodiment of the invention, the evaluation unit is designed to determine information about a heat flow through the valve and / or in the vicinity of the valve on the basis of the i) generated by the thermogenerator voltage and the temperature of the heat sink or ii) the measured temperature of the valve and to determine from this information information relating to the power consumption during operation of a device (eg a heater) that is associated with the valve, ie to create a consumption analysis. It is conceivable that other parameters (such as the heating type) are included in the consumption analysis.

In addition or as an alternative to the already mentioned temperature sensors for determining the temperature in the region of the valve or the temperature of the heat sink, the actuator arrangement can have at least one temperature sensor for measuring the ambient temperature.

• a) Öffnen aller Heizkörper und deren Regelung auf identische Zieltemperaturen in jedem Raum;
• b) Messung der Zeit pro Raum bis zum Erreichen einer eingestellten Zieltemperatur;
• c) Ermittlung des Raumes und/oder des Heizkörpers mit der längsten Zeitkonstante und somit des ungünstigsten Heizkörpers und/oder Raumes im Heizsystem

For example, the measured ambient temperature (of the actuator) can be used to determine the most unfavorable in a heating installation radiator (each associated with an actuator arrangement according to the invention), for example, by a performed by central control routine according to:

• a) opening all radiators and their regulation to identical target temperatures in each room;
• b) measuring the time per room until reaching a set target temperature;
• c) Determination of the room and / or the radiator with the longest time constant and thus the least favorable radiator and / or space in the heating system

• d) gewünschte Raumtemperatur wird nicht erreicht, wobei die Vorlauftemperatur korrekt ist und eine Differenz zwischen der Vorlauftemperatur und einer Rücklauftemperatur klein ist (50/40) => Heizkörper ist zu zu klein, um die gewünschte Raumtemperatur zu erreichen,
• e) gewünschte Raumtemperatur wird nicht erreicht, wobei die Vorlauftemperatur korrekt ist und eine Differenz zwischen der Vorlauftemperatur und einer Rücklauftemperatur groß ist (50/30) => Zu wenig Durchfluss (Abgleich) oder Leitung und/oder Ventil zu klein oder eine Pumpe zum Pumpen des Heizmediums ist zu schwach;
• f) gewünschte Raumtemperatur wird erreicht, aber sehr lange Zeitkonstante => Abgleich prüfen; Rücklauftempemperatur auswerten

For example, based on the steps a) to c) a root cause analysis can be carried out:

• d) desired room temperature is not reached, the flow temperature is correct and a difference between the flow temperature and a return temperature is small (50/40) => radiator is too small to reach the desired room temperature,
• e) desired room temperature is not reached, the flow temperature is correct and a difference between the flow temperature and a return temperature is large (50/30) => too little flow (balancing) or line and / or valve too small or pump for pumping the heating medium is too weak;
• f) desired room temperature is reached, but very long time constant => check balance; Evaluate return temperature

• g) Prüfen des hydraulischen Abgleiches, ggfs. durch Auswertung der Rücklauftemperaturen innerhalb des Systems;
• h) Reduktion der Pumpenleistung er dann, wenn der ungünstigste Raum seine Zieltempemperatur erreicht hat.
• i) Zeitkonstanten ja Raum auswerten und Profil ermitteln/ausgeben.

For example, based on a) to f), the following measures can be taken:

• g) checking the hydraulic balancing, if necessary by evaluating the return temperatures within the system;
• h) Reduction of the pumping capacity he then, when the worst-case room has reached its target temperature.
• i) Time constants yes Evaluate room and determine / output profile.

Furthermore, the evaluation unit can be designed to generate information for controlling the actuator on the basis of the measured temperature in the region of the valve and thus of the flow temperature, the temperature of the heat sink and / or the ambient temperature and / or the duration of time dependent on these measured temperatures Set intervals ("duty cycle"), with which control signals (eg control signals) passed to the actuator and / or with which information about the actuator to an external control unit sent (especially sparked). The control signals are e.g. from a (for example, with the actuator integrated) control generated (self-regulating actuator).

For example, the evaluation unit recognizes the current annual section on the basis of the measured temperatures and sets the duration of the intervals corresponding to shorter (winter) or longer (spring), so that the actuator will set and / or spark more or less often. It is also conceivable that the control unit is an external unit (for example a central unit of a home automation system), the evaluation unit being e.g. is a part of this external control unit.

It is also conceivable that with two or more than two in-room actuator arrangements, an ambient temperature sensor of one of the actuator assemblies or the ambient temperature sensor of several of the actuator assemblies are sequentially utilized to achieve (automatic) adjustment of a predetermined room target temperature. For example, an off-stage actuator assembly may detect and / or communicate (in particular to a central processing unit) a room temperature attained by the operation of the further actuator assemblies, and thus the radiators, the determined room temperature being e.g. can be used in the central unit for offset adjustments with respect to the actuator assemblies.

Furthermore, a measured temperature rise and / or fall and its velocity (e.g., ° C / min) may be used to infer building physicality, room type, room insulation, and / or radiator performance.

The evaluation unit is equipped in particular in the form of a programmable component equipped with appropriate software. It is also conceivable that the evaluation unit forms a unit together with the actuator, wherein the actuator and the evaluation unit, e.g. housed in a common housing. For example, further components are arranged in the housing, for example the thermogenerator for supplying energy to the actuator and / or the temperature sensor for determining the valve temperature. It is also possible that such an actuator assembly realized a "stand-alone" device that operates independently (for example, as a particular time-programmable actuator on a radiator). However, it is also possible that the actuator assembly is incorporated in a network of components, e.g. in a room or building automation system.

As mentioned above, however, the evaluation unit can also be a unit external to the actuator, i. a component remote from the actuator located outside a housing of the actuator. In particular, the evaluation unit is part of a control of a heating system (or in general a home automation system as also already mentioned). For example, the communication between the actuator, the thermal generator (or a circuit for operating the thermal generator) and / or the temperature sensor for determining the temperature of the radiator valve on the one hand and the evaluation on the other hand via a radio link. It is also possible that the communication takes place via the Internet.

In another aspect, the invention relates to an actuator system having at least a first and a second, each associated with a radiator actuator assembly which are formed as described above, wherein the radiator via the same flow line of a heating system are connected (to be supplied with a heating medium), and wherein at least one of the evaluation of the actuator assemblies is configured to compare the measured temperature of the heat sink with the temperature of the heat sink of the further actuator assembly.

With the help of this actuator system, it is particularly possible to detect a poor hydraulic balance in single or multiple radiators. For example, a balance can be made in the manner that e.g. small radiators with over-dimensioned piping due to line losses and / or pump efficiency are driven to a lower setting position range (e.g., 0-20%) of the shut-off element (while all other radiators are operated at, for example, 0 to 100%). Also conceivable is a manual intervention in radiators whose cross-section and dimensioning is correct.

Of course, the actuator system may also comprise more than two radiators, i. have more than two actuator assemblies. It is also possible to process the measured heat sink temperatures and the determined flow temperatures in the internal and / or external evaluation unit, and e.g. combined with other temperature values, e.g. a return temperature to process to realize an automatic hydraulic balancing.

• – einem Stellantrieb zum Betätigen eines Absperrelementes des Ventils; sowie
• – mindestens einen akustischen Sensor, der so ausgebildet und angeordnet ist, dass er eine durch das Hindurchströmen eines Heizmediums durch das Ventil verursachte Geräuschentwicklung detektiert.

In a further aspect, the invention relates to an actuator arrangement for a valve (eg a radiator valve), in particular as described above with

• - An actuator for actuating a shut-off of the valve; such as
• - At least one acoustic sensor, which is designed and arranged so that it detects a caused by the passage of a heating medium through the valve noise.

In addition, for example, at least one thermogenerator or another energy converter is provided, which generates an electrical voltage and an electric current under the influence of a temperature gradient in the region of the valve, and e.g. used to generate or provide energy for the operation of the actuator.

In addition, the actuator assembly may have an evaluation unit, which is designed to detect a change in the setting of the valve based on the signals of the acoustic sensor. For example, it can be recognized whether the valve is open or closed, e.g. Also, a time of opening and / or closing of the valve can be detected. Furthermore, defects of a heating system, which belongs to the actuator assembly can be detected; For example, a presence of air in a (connected to the valve) line of a heating system or noise that indicate a defect in a pump of the heating system.

The evaluation unit can also be set up to generate an alarm or warning signal when a defect is detected. The alarm or warning signal is e.g. sent to an external control unit, which then generates an optical and / or acoustic signal indicative of the defect. It is also conceivable that the actuator assembly itself has a unit for generating an acoustic and / or optical signal, which signals the evaluation of the presence of a defect and there triggers an audible and / or visual warning or alarm signal.

The actuator and the acoustic sensor are arranged in particular in a common housing, wherein in the housing also other components, e.g. the mentioned thermal generator or another energy converter can be located.

The invention also relates to an actuator arrangement for a valve, in particular as described above, with an actuator for actuating a shut-off of the valve (eg, a valve body of a radiator valve) and optionally with at least one thermal generator, which under the action of a temperature gradient in the region of the radiator valve, an electrical voltage and generates an electrical current, wherein the actuator assembly has an interface that allows control of the actuator assembly (in particular the actuator) by voice and / or a radio connection with the actuator assembly (in particular with the actuator and, for example, to control the actuator).

For example, the interface comprises a microphone for voice input, wherein the microphone is approximately integrated in the actuator assembly. However, the interface does not necessarily have to be arranged in the vicinity of the actuator. Rather, it may be located away from the actuator, for example, as part of a central unit of a heating system, which, for example, the aforementioned microphone is located in the central unit. The speech recognition is in particular able to recognize speech patterns and thus voice commands, so that individual commands sent to the actuator and / or a complete programming of the actuator is possible. It is also conceivable that various control commands or control sequences are predefined as voice commands; For example, the command "Open", which causes about a complete opening of the radiator valve. Conceivable are corresponding commands such as "closing", "heating", "mounting", "dismantling", "holiday", "party", etc.

A control and / or programming of the actuator can also be done by transmitting commands and / or programs via the radio link to the actuator. The radio connection is not bound to any particular radio standard. It is conceivable to use EnOcean, zWave, Bluetooth, WLAN, DECT etc.

In another aspect, the invention also relates to an actuator assembly for a valve, in particular as described above, with an actuator for actuating a shut-off of the valve (in particular a shut-off of a valve body of a radiator valve), optionally with at least one thermal generator (eg for generating energy for the operation of the actuator), and a device for displaying and / or transmitting information regarding the position of a shut-off of the valve (eg, a valve stem of a radiator valve). This information may also refer to the position of a transmission for moving the shut-off element (i.e., the position of the shut-off element is shown indirectly).

The device for displaying information regarding the position of the shut-off element comprises e.g. a display (such as a screen) and / or is adapted to transmit the information regarding the position of the shut-off element to an external controller. The external control can be, for example, the central unit of a heating control (already mentioned several times) (with its own display and its own graphical user interface), which displays the information. It is also conceivable that the information from a mobile device (in particular a smartphone) is received and displayed, wherein the mobile device has a corresponding software ("App").

It is also conceivable that the information relating to the position of the shut-off element is transmitted to a PC or another computer (in particular for maintenance purposes). It is also conceivable that further information, e.g. the above-mentioned thermal generator voltage and / or the thermogenerator current, a voltage of an energy storage and / or determined temperatures are transmitted via an interface to a PC or another computer. It is conceivable to load and / or operate the actuator assembly via such an interface.

Instead of or in addition to a conventional display, a mechanical indication may be present. For example, the mechanical display comprises a plurality of markers (e.g., in the form of "icons") disposed on a rotatable member which rotates upon an actuating movement of the valve lifter and which, e.g. are visible from the outside through a window in a housing of the actuator assembly.

The markings are e.g. arranged along a circumference of the rotatable element, wherein, depending on the position of the rotatable element, e.g. in each case one (in particular exactly one) marking, which is assigned to a specific position of the shut-off element, is visible from the outside.

It is also conceivable that a motor drive for moving the shut-off element is designed so that the rotatable element during a positioning operation is gradually rotated so that it stops at defined positions in which the corresponding mark is visible from the outside. As labels, e.g. Signs or symbols or gray levels each representing a particular valve position (e.g., 0-100% valve opening) or a status of the actuator (e.g., calibration, normal operation, no connection, low power, etc.) are conceivable.

The rotatable element is e.g. about a (e.g., fast rotating) gear of a transmission for moving the shut-off element. However, it is also conceivable that the rotatable element is an additional element which is coupled to the transmission for moving the shut-off element; For example, it is a wheel or a disc that is (indirectly or directly) moved by a drive shaft of the transmission.

The mechanical display has in particular the advantage over an electrical display (such as an LCD or LED display) that it does not require a permanent power supply and yet can have a high contrast.

In general, the position of the shut-off can also be controlled by using a motor gear. For example, the motor gearbox includes a gear stage that converts a rotary motion into a linear motion (such as by a cam on a gear wheel) and transmits the linear motion to the shut-off element via a bearing (and, for example, by another cam).

The information about the position of the shut-off can, for example, a number of actuating movements (approximately per unit time) or an average adjustment (as a measure of the Granularity of the control of the actuator) include.

Moreover, the invention also relates to an actuator assembly for a valve, in particular as described above, with an actuator for actuating a shut-off of the valve, which is in an energy-saving state (sleep mode) can be set, from which it is woken by an external control signal.

The actuator (in particular self-contained, i.e. designed as a "stand-alone" unit) can therefore be woken up by a control unit (in particular remote) at a distance, e.g. to send actuating signals to the actuator and / or retrieve information from the actuator.

The acoustic signal is e.g. in the form of a digitally coded signal, e.g. a (in particular amplitude-modulated) ultrasound signal (for example having a frequency of, for example, 10-30 kHz, in particular at least approximately 20 kHz), the acoustic signal being emitted, in particular, via the loudspeaker of a mobile device (for example a smartphone or a tablet computer).

It is also conceivable that a radio signal is used to wake up, e.g. according to the Bluetooth standard (for example at 2.4 GHz). In particular, the radio signal is also an amplitude modulated or frequency modulated and digitally coded signal (e.g., at a low frequency, such as in the kHz range, e.g., 100 to 200 kHz, particularly 125 kHz), the modulated signal being e.g. how the sound signal can be generated via a mobile device. The mobile device has for this purpose a corresponding software ("App"). Also conceivable is a coded signal of the same frequency.

In either case, the wake-up signal is received by a receiver (e.g., a passive AM detector or a radio receiver) of the actuator assembly, with the receiver particularly in proximity (such as in a common housing) with the actuator. The signal received by the receiver is compared in a comparator with a stored signal (code) and the waking initiated when the signals match.

It is also conceivable that the mobile device does not communicate directly with the actuator, but rather via a network node (in particular via WLAN) connected to a power supply network for power supply and arranged remotely from the actuator. The network node receives the signal from the mobile device and forwards it to the receiver located near the actuator, e.g. using a digitally coded amplitude modulated (e.g., 125 kHz) signal (at a carrier frequency of, for example, 868 MHz), or coded information of the same frequency. The receiving and decoding then takes place as described above with the receiver and comparator of the actuator assembly.

It is also possible that the network node is connected to the Internet and for this purpose e.g. a WLAN regenerator - a WLAN repeater that routes a communication link to a wireless router (e.g., central) connected to the Internet. In this way, a user can monitor and control the actuator via the Internet. A temperature sensor (for example one of the temperature sensors described above) may also be accommodated in the network node, in particular for calibrating a temperature sensor arranged in the vicinity of the actuator.

It is also conceivable that the described functionality of the network node is integrated directly into a communication gateway.

• – Bereitstellen eines Stellantriebes zum Betätigen eines Absperrelementes des Ventils (z.B. eines Heizkörperventils) sowie mindestens eines Thermogenerators zum Erzeugen von Energie für den Betrieb des Stellantriebes und/oder mindestens eines Temperatursensors zum Bestimmen einer Temperatur des Ventils; und
• – Auswerten einer von dem Thermogenerator erzeugten elektrischen Spannung, eines von dem Thermogenerator erzeugten elektrischen Stromes und/oder der mit dem Temperatursensor bestimmten Temperatur im Bereich des Ventils und/oder der Umgebungstemperatur.

The invention also relates to a method for operating an actuator assembly, in particular as described above, with the steps

• - Providing an actuator for actuating a shut-off of the valve (eg a radiator valve) and at least one thermal generator for generating energy for the operation of the actuator and / or at least one temperature sensor for determining a temperature of the valve; and
• - Evaluating an electrical voltage generated by the thermal generator, an electric current generated by the thermal generator and / or the temperature determined by the temperature sensor in the region of the valve and / or the ambient temperature.

• – Bereitstellen eines Stellantriebes zum Betätigen eines Absperrelementes des Ventils sowie mindestens eines Thermogenerators,
• – zeitweises Betreiben des Thermogenerators als Peltierelement, um zumindest eine Komponente der Stellantriebsanordnung gezielt zu temperieren,
• – Messen der Temperatur an dieser oder einer anderen Komponente, und
• – Überprüfen der Funktion der Stellantriebsanordnung in Abhängigkeit von der gemessenen Temperatur.

Moreover, the invention also relates to a method for operating an actuator assembly, in particular as described above, with the steps

• Providing an actuator for actuating a shut-off element of the valve and at least one thermal generator,
• Temporary operation of the thermogenerator as a Peltier element in order to specifically temper at least one component of the actuator arrangement,
• - measuring the temperature of this or any other component, and
• - Checking the function of the actuator assembly as a function of the measured temperature.

To operate the thermogenerator as a Peltier element is the thermogenerator eg Energy from a (especially rechargeable) battery of the actuator assembly or an external battery supplied. For example, the function of the battery can be checked in this way.

It is furthermore conceivable that the temperature is measured at a heat sink coupled to the thermal generator and / or at a connection of the actuator arrangement with the valve and the thermal contact of the thermal generator with the heat sink and / or the connection with the valve depends on the measured temperature of the Heat sink and / or the connection with the valve is checked.

The invention is explained in more detail below with reference to embodiments with reference to the figures. Show it:

1 a block diagram of an actuator assembly according to a first embodiment of the invention;

2 a block diagram of an actuator assembly according to a second embodiment of the invention;

3 schematically a valve with an actuator assembly according to the invention;

4 a schematic view of a radiator valve and an actuator assembly according to another embodiment of the invention; and

5 the radiator valve and the actuator assembly 4 in coupled state.

The 1 shows a block diagram of an actuator assembly according to the invention 1 for adjusting a radiator valve (not shown in the figure), wherein the actuator assembly 1 in particular an actuator 10 for actuating the radiator valve.

The actuator 10 has an electric motor 11 up, over a gearbox 12 a particular linear movement (for example, an actuating pin of the actuator 10 ). Via the linear movement, a shut-off element (not shown), coupled to a valve tappet, of a valve lower part of the radiator valve is moved in order to close or open the radiator valve. The (also not shown) adjusting pin of the actuator 10 in particular interacts directly or indirectly with the valve tappet of the radiator valve. The actuator 10 also has a position sensor 13 for determining a position of the adjusting pin. The position sensor 13 sends information (data) about the position of the control pin to a microcontroller 100 the actuator assembly 1 which in turn also controls the motor 11 of the actuator 10 can serve.

The actuator assembly 1 furthermore has connecting means 30 for connecting the actuator assembly 1 with the valve body of the radiator valve to the actuation of the radiator valve (in particular its valve stem) via the actuator 10 to enable. The connecting means 30 For example, comprise a connection element with a thread, via which a screw connection with a corresponding connection element of the valve body can be produced.

In addition, the actuator assembly 1 be designed as a self-sufficient energy unit, for which they in particular a thermogenerator 20 has. The thermogenerator 20 generated under the action of a temperature gradient (in particular when arranging the actuator assembly 1 arises on a radiator) electrical energy, with the particular of the actuator 10 (for example, its engine 11 ) can be supplied.

It is conceivable that the thermogenerator 20 via a cable with the microcontroller 100 the actuator assembly 1 connected, ie not together with the microcontroller 100 on a circuit board, but spaced therefrom is arranged. However, it is also possible an arrangement of the thermal generator 20 and the microcontroller (and also other components) on a common circuit board.

The thermogenerator 20 can also use a boost converter 21 ("DC-DC booster") be connected to produce a predeterminable DC output voltage. Furthermore, the actuator assembly 1 a performance management component LMK 22 (in the form of a suitably equipped electronic module), which with a rechargeable battery 23 and / or a LIC cell (lithium ion capacitor cell) 24 interacts. It is also conceivable that the up-converter 21 and the performance management component 22 form by a unit.

Charging the battery 23 and / or a LIC cell takes place for example via a connection 27 (eg in the form of a USB port), in particular with the energy management module 22 connected is. The connection 27 can also work with the microprocessor 100 be coupled, so that over the connection 27 also via line connection information about the actuator assembly 1 read out and / or control signals to the actuator assembly 1 are transferable.

The energy management module 22 serves in particular to the power supply of components of the actuator assembly 1 , in particular the actuator 10 to control. For example, the actuator 10 Energy of rechargeable energy storage 23 . 24 supplied when the from the thermogenerator 20 generated energy is too low. The actuator assembly 1 may further include a primary battery 25 own, which also in particular to power supply of the actuator 10 serves.

Furthermore, the actuator assembly includes 1 in particular an evaluation unit (which, for example, as part of the microprocessor 100 is formed), which detects, for example, the thermal generator voltage and / or the thermogenerator and wins information from these sizes, the most efficient operation of the actuator assembly 1 enable. For example, it is possible that the evaluation unit is designed to determine the temperature of the radiator valve with the aid of the thermal generator voltage or the thermogenerator current. With the help of the temperature of the radiator valve, in turn, information about the position of the radiator valve and / or information about a heat flow through the radiator can be derived, as already explained above. The knowledge of the heat flow can in turn be used to create a consumption analysis.

It should be noted that it is quite possible that the thermogenerator 20 is used as a pure measuring means, ie the power generated by it or the voltage generated by it is used to obtain information (see above), but not to power the actuator.

It is also conceivable that a temperature sensor 31 is provided, with which the temperature of one with the thermogenerator 20 coupled heat sink 26 is determined. Using the with the sensor 31 certain temperature of the heat sink 26 In turn, it can be closed as precisely as possible to the temperature of the radiator valve.

The actuator assembly 1 can be next to the temperature sensor 31 have further temperature sensors. For example, is located on a circuit board 300 on which at least some of the components of the actuator assembly shown in the figure 1 are arranged, a temperature sensor 32 for determining the PCB temperature. In addition, an ambient temperature sensor 33 be present, which is used to determine an ambient temperature of the actuator assembly 1 is placed; In particular, the temperature sensor is located 33 near a housing 50 the actuator assembly 1 , It is also conceivable that the housing 50 an opening 51 over which the temperature sensor 33 in contact with the environment of the actuator assembly 1 stands.

The with the temperature sensors 31 - 33 certain temperatures can be used in particular to parameters of a control of the actuator 10 adjust. For example, using the with the temperature sensor 33 certain ambient temperature, the duration of intervals are set, with which control signals to the actuator 10 be directed. It is conceivable, for example, that at higher ambient temperatures (for example in spring) longer intervals between two actuating movements are predetermined, eg using a real-time component 71 ("Real time clock") of the actuator assembly 1 ,

It should be noted that the mentioned evaluation unit is not necessarily part of the microprocessor 100 have to be. Rather, it is conceivable that the evaluation unit is realized by means of its own module, which, for example, also on the circuit board 300 is arranged. However, it is also possible that the evaluation unit is a separate unit, which in particular is at a distance from the actuator 10 is arranged and located outside the housing 50 located. A communication with such an evaluation is carried out in particular wirelessly.

The actuator assembly 1 has wireless communication with external units (not necessarily only for the mentioned communication with the external evaluation unit) via a radio interface 41 , eg in the form of a Bluetooth and / or WLAN interface.

The radio interface 41 may also serve to receive a wake-up signal. It is conceivable that the actuator assembly 1 (from the microprocessor 100 controlled) is switched from an operating state to an energy-saving state, if this allows the operating situation. The awakening of the actuator assembly 1 From this energy-saving state takes place for example via a radio signal, which with the radio interface 41 received and sent to the microprocessor 100 is given. As described above, upon detection of a particular code in the wake-up signal, the actuator assembly is awakened 1 ,

The radio interface 41 further allows communication between the actuator assembly 1 and a mobile terminal 200 , for example with a smartphone. Via a graphical user interface 201 of the mobile device 201 and a software (App 202 ) may be controlling the actuator assembly 1 (especially their actuator 10 ) and / or other components of Actuator assembly 1 respectively. For example, the mentioned wake-up radio signal may also be from the mobile device 200 (from a radio unit 204 of the mobile device 200 ) go out. Furthermore, it is conceivable that via the mobile device 200 Data from the actuator assembly (for example, those from the temperature sensors 31 - 33 certain temperatures) to the mobile device 200 be received.

The mentioned waking the actuator assembly 1 As an alternative to a radio-transmitted wake-up signal, this can also take place by way of an acoustic wake-up signal, for which purpose the actuator arrangement 1 a microphone 42 having. About the microphone 42 may be an acoustic wake-up signal, in particular the mobile device 200 This one has a speaker 203 output, received and demodulated / decoded as described above. The actuator assembly has for demodulating / decoding the radio wake-up signal or the acoustic wake-up signal 1 a wake-up unit 43 having, for example, the already mentioned demodulator and / or comparator.

To activate / deactivate the radio link, the actuator assembly 1 an externally accessible switch 44 include. For example, by pressing the switch 44 also a specific communication process, such as a data synchronization (synchronization), are triggered. The actuator assembly 1 can next to the switch 44 have further controls, for example, a reset switch 45 ,

In addition, at least one display element, for example in the form of at least one LED 61 , be present, for example, information about a status of the actuator assembly 1 displays; for example, the operational readiness of the actuator assembly 1 signaled.

It is further noted that the microprocessor 100 not just to control the actuator 10 serves, but with other components (in particular the components described above) of the actuator assembly 1 cooperates, which is indicated in the figure by double arrows.

In addition, it should be noted that while it is quite possible that the above-mentioned components together in the housing 50 are arranged. However, this is not mandatory; It is also conceivable that at least some components outside the housing 50 (Eg, in a separate housing) are (eg, as already mentioned above, the evaluation unit) or an additional temperature sensor for direct determination of the temperature of the radiator valve.

It should also be noted that the actuator arrangement according to the invention 1 Of course not necessarily all components shown in the figure must have. For example, the temperature sensors 32 and 33 , the LIC cell or the microphone 42 optional.

2 schematically shows a heating system 400 with a radiator 401 with a radiator valve 402 , The radiator valve 402 consists of a valve body 4021 and a valve top coupled to the valve body 4022 , The valve body 4021 has in a conventional manner, a shut-off (not shown), for example in the form of a valve stem, which can be moved relative to a flow-through to the flow of a heating medium through the flow opening and thus through the valve 402 and the radiator 401 adjust.

The actuation (movement) of the shut-off element takes place with the aid of an actuator arrangement according to the invention 1 located in the area of the valve top 4022 arranged and with the valve body 4021 via connecting means 4023 (approximately in the form of a threaded connection) is connected. The actuator assembly 1 includes as already explained above a motorized actuator for generating a particular linear movement, which acts on the shut-off of the valve body.

As already explained above, actuator assembly 1 includes the actuator assembly 1 next to the actuator a thermal generator 20 for supplying energy to the actuator and / or as a measuring means. Furthermore, the actuator assembly includes 1 an internal evaluation unit 80 , which, as already mentioned above, for example, detects the thermal generator voltage and / or the thermogenerator current and obtains information from these variables which ensures the most efficient operation of the actuator arrangement 1 enable.

It is also conceivable that the actuator assembly 1 Such information (data) by radio to an external evaluation unit 801 sends, which is part of a central control unit 800 is. The central control unit 800 is used in particular for controlling the heating valve 402 and possibly other heating valves of other radiators (in 2 not shown). It is conceivable that both an internal, as well as an external evaluation unit 80 . 801 available. It is also possible that either only the internal evaluation unit 80 or only the external evaluation unit 801 is provided.

In 3 is schematically a valve 900 that with an actuator assembly according to the invention 1 interacts. The actuator assembly 1 includes an actuator 90 with an elongated actuator 91 that manually via a handwheel 92 is operable. A rotation of the handwheel 92 causes in a conventional manner a linear movement of the actuating element 91 ,

The actuator 91 in turn works with a shut-off element 901 of the valve 900 together and in such a way that the position of the shut-off 901 relative to a valve opening 902 of the valve 900 by moving the control element 91 ie by moving the handwheel 92 , is changeable. In particular, one end of the control element 91 with the shut-off element 901 connected. The distance of the shut-off element 901 to the valve opening 902 sets the effective flow area of the valve opening 902 firmly, so by turning the handwheel 92 the flow of one in one with the valve 900 provided piping 903 flowing medium 904 can be adjusted. Of course, a motorized actuation of the actuating element is also possible 91 ,

The actuator assembly 1 has at least one temperature sensor (eg in the form of a thermogenerator) for determining a temperature of the valve 900 and / or an ambient temperature and an evaluation unit for evaluating a temperature of the valve determined by the temperature sensor 900 and / or the ambient temperature. The temperature sensor and the evaluation unit are in 3 not shown.

The 4 and 5 relate to a further embodiment of the actuator assembly according to the invention 1 , here to adjust a radiator valve 500 serves. The radiator valve 500 Can also be used as so-called. "Valve base" and the actuator assembly 1 be regarded as so-called "valve top". Accordingly, the radiator valve includes 500 in its interior a valve opening and a movable relative to the valve opening shut-off for adjusting a flow of a heating medium through the valve opening. The shut-off element is provided with an actuating element in the form of a valve tappet 504 (for example, in one piece) connected.

The actuator assembly 1 includes one in a housing 11 housed actuator connected to the valve lifter 504 cooperates and which serves to adjust the position of the shut-off element and thus to adjust the flow of the heating medium through the valve opening and accordingly to adjust the radiator temperature accordingly. The actuator of the actuator assembly 1 In particular, it has an actuator in the form of an electric motor that moves an actuator substantially linearly. After coupling the actuator assembly 1 with the radiator valve 500 (see. 5 ) is a movement of the actuating element on the valve lifter 504 transfer. The actuator assembly 1 is eg according to 1 designed.

For coupling to the radiator valve 500 owns the actuator assembly 1 connecting means 30 in the form of a provided with an internal thread connection element 31 on a corresponding connection element 501 of the radiator valve 500 can be screwed on. The radiator valve 500 also has connections 502 . 503 on, to connect the valve 500 to a supply line (not shown) or a radiator (also not shown) are used.

In addition, the actuator assembly includes 1 at least one thermogenerator under the influence of a temperature gradient in the area of the radiator valve 500 generates an electrical voltage and an electric current. Alternatively or additionally, the actuator assembly 1 also a temperature sensor for determining a temperature in the region of the radiator valve 500 and / or an ambient temperature. The thermogenerator and / or the temperature sensor is eg in or on the housing 11 arranged.

Furthermore, the actuator assembly includes 1 an evaluation unit for evaluating the voltage generated by the thermal generator or the current generated by the thermal generator and / or the temperature or the ambient temperature determined by the temperature sensor. It is conceivable that the evaluation unit in the housing 11 the actuator assembly is housed.

However, it is also possible that it is an external evaluation unit, ie an evaluation unit that is located outside the housing 11 and in particular spaced from the actuator and the radiator valve 500 as already explained above.

Claims (25)

Actuator arrangement for a valve, with - an actuator ( 10 . 90 ) for actuating a shut-off element ( 901 ) of the valve ( 402 . 500 . 900 ); At least one thermal generator ( 20 ) under the influence of a temperature gradient in the region of the valve ( 402 . 500 . 900 ) generates an electrical voltage and an electric current, and / or at least one temperature sensor for determining a Temperature in the area of the valve ( 402 . 500 . 900 ) and / or an ambient temperature; and - at least one evaluation unit ( 80 . 801 ) for evaluating the of the thermal generator ( 20 ) generated by the thermal generator ( 20 ) and / or the temperature determined by the temperature sensor in the region of the valve ( 402 . 500 . 900 ) and / or the ambient temperature. Actuator assembly according to claim 1, characterized in that the evaluation unit is formed using the thermal generator ( 20 ) and / or generated by the thermal generator ( 20 ) generated a temperature in the region of the valve ( 402 . 500 . 900 ). Actuator assembly according to claim 2, characterized by at least one temperature sensor ( 31 ) for measuring a temperature of one with the thermogenerator ( 20 ) coupled heat sink ( 31 ). Actuator assembly according to claim 3, characterized in that the evaluation unit is formed, based on the thermal generator ( 20 ) and the temperature of the heat sink ( 26 ) a temperature in the region of the valve ( 402 . 500 . 900 ). Actuator assembly according to claim 3 or 4, characterized in that the evaluation unit is formed, based on the i) of the thermal generator ( 20 ) and the temperature of the heat sink ( 26 ) or ii) the measured temperature in the region of the valve ( 402 . 500 . 900 ) information about a heat flow through the valve ( 402 . 500 . 900 ) and / or in the vicinity of the valve ( 402 . 500 . 900 ) and from this information an information regarding the energy consumption in the operation of a device, the valve ( 402 . 500 . 900 ) to determine. Actuator arrangement according to one of the preceding claims, characterized in that the evaluation unit is formed using the heat generator ( 20 ) generated by the thermal generator ( 20 ) and / or the temperature determined by the temperature sensor in the region of the valve ( 402 . 500 . 900 ) information about the position of the shut-off element ( 901 ), to determine a flow temperature and / or a heat flow. Actuator arrangement according to one of the preceding claims, characterized in that the evaluation unit is formed, depending on the measured temperature in the region of the valve ( 402 . 500 . 900 ), the temperature of the heat sink ( 26 ) and / or the ambient temperature to set the duration of intervals with which control signals are sent to the actuator ( 10 ) and / or with which information concerning the actuator ( 10 ) are sent to an external control unit. Actuator arrangement according to one of the preceding claims, characterized in that the evaluation unit is formed, depending on the measured temperature in the region of the valve ( 402 . 500 . 900 ), the temperature of the heat sink ( 26 ) and / or the ambient temperature information for controlling the actuator ( 10 ) to create. Actuator arrangement according to one of the preceding claims, characterized in that the evaluation unit together with the actuator ( 10 . 90 ) in a common housing ( 50 ) is arranged. Actuator arrangement according to one of claims 1 to 8, characterized in that the evaluation unit remote from the actuator ( 10 . 90 ) outside of a housing ( 50 ) of the actuator assembly ( 1 ) is arranged. Actuator arrangement according to one of the preceding claims, characterized by a microcontroller arranged on a printed circuit board ( 100 ) for controlling the actuator ( 10 . 90 ), wherein the thermogenerator ( 20 ) is arranged spaced from the circuit board. Actuator system comprising at least a first and a second, each associated with a radiator actuator assembly according to one of the preceding claims as far back to claim 3, wherein the radiators are connected via the same flow line of a heating system, characterized in that at least one of the evaluation of the actuator assemblies is formed, the Compare measured temperature of the heat sink with the temperature of the heat sink of the other actuator assembly. Actuator arrangement for a valve, in particular according to one of the preceding claims, with an actuator ( 10 . 90 ) for actuating a shut-off element ( 901 ) of the valve ( 402 . 500 . 900 ), characterized by at least one acoustic sensor which is designed and arranged such that it can be detected by the passage of a medium ( 904 ) through the valve ( 402 . 500 . 900 ) detected noise development detected. Actuator arrangement according to claim 13, characterized by an evaluation unit which is designed, based on the signals of the acoustic sensor, a change in the setting of the valve ( 402 . 500 . 900 ) to recognize. Actuator arrangement according to claim 13 or 14, characterized in that the actuator ( 10 . 90 ) and the acoustic sensor in a common housing ( 50 ) are arranged. Actuator arrangement for a valve, in particular according to one of the preceding claims, with an actuator ( 10 . 90 ) for actuating a shut-off element of the valve ( 402 . 500 . 900 ), characterized by an interface ( 41 ), which is a control of the actuator assembly ( 1 ) by voice input and / or radio communication with the actuator assembly ( 1 ). Actuator arrangement for a valve, in particular according to one of the preceding claims, with an actuator ( 10 . 90 ) for actuating a shut-off element ( 901 ) of the valve ( 402 . 500 . 900 ), characterized by a device for displaying and / or transmitting information regarding the position of the shut-off element ( 901 ). Actuator assembly according to claim 17, characterized in that the device for display comprises a display and / or is formed, an information relating to the position of the shut-off ( 901 ) to an external controller. Actuator assembly according to claim 18, characterized in that it is the display is a mechanical display. Actuator assembly according to claim 19, characterized in that the mechanical display comprises a plurality of markings which are arranged on a rotatable element which rotates during an adjusting movement of the shut-off element. Actuator arrangement for a valve, in particular according to one of the preceding claims, with an actuator ( 10 . 90 ) for actuating a shut-off element ( 901 ) of the valve ( 402 . 500 . 900 ), which is displaceable in an energy-saving state, from which it can be woken up by an external control signal. Actuator arrangement according to claim 21, characterized in that the control signal is an acoustic signal or a radio signal. Method for operating an actuator arrangement, in particular according to one of the preceding claims, with the steps - providing an actuator ( 10 . 90 ) for actuating a shut-off element ( 901 ) of a valve ( 402 . 500 . 900 ) and at least one thermal generator ( 20 ) under the influence of a temperature gradient in the region of the valve ( 402 . 500 . 900 ) generates an electrical voltage and an electric current, and / or at least one temperature sensor for determining a temperature in the region of the valve ( 402 . 500 . 900 ); and - evaluating one of the thermal generator ( 20 ) generated electrical voltage, one of the thermal generator ( 20 ) and / or the temperature determined by the temperature sensor in the region of the valve ( 402 . 500 . 900 ) and / or the ambient temperature. Method for operating an actuator arrangement, in particular according to one of the preceding claims, with the steps - providing an actuator ( 10 . 90 ) for actuating a shut-off element ( 901 ) of a valve ( 402 . 500 . 900 ) and at least one thermal generator ( 20 ), - temporary operation of the thermal generator ( 20 ) as a Peltier element to at least one component of the actuator assembly ( 1 ), - measuring the temperature of this or another component; and - checking the function of the actuator assembly ( 1 ) depending on the measured temperature. A method according to claim 24, characterized in that the temperature at one with the thermogenerator ( 20 ) coupled heat sink ( 26 ) and / or at a connection ( 30 ) of the actuator assembly ( 1 ) with the valve ( 402 . 500 . 900 ) and the thermal contact of the thermal generator ( 20 ) with the heat sink ( 26 ) and / or the connection ( 30 ) with the valve ( 402 . 500 . 900 ) depending on the measured temperature of the heat sink ( 26 ) and / or the connection ( 30 ) with the valve ( 402 . 500 . 900 ) is checked.

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