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WO2020079132A1 - Appareil de commutation pour commander l'alimentation en énergie d'un récepteur électrique - Google Patents

Appareil de commutation pour commander l'alimentation en énergie d'un récepteur électrique Download PDF

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Publication number
WO2020079132A1
WO2020079132A1 PCT/EP2019/078186 EP2019078186W WO2020079132A1 WO 2020079132 A1 WO2020079132 A1 WO 2020079132A1 EP 2019078186 W EP2019078186 W EP 2019078186W WO 2020079132 A1 WO2020079132 A1 WO 2020079132A1
Authority
WO
WIPO (PCT)
Prior art keywords
connection
switching device
supply voltage
connection device
switching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2019/078186
Other languages
German (de)
English (en)
Inventor
Elmar Schaper
Bernd Schulz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Priority to CN201980068620.XA priority Critical patent/CN112913099B/zh
Publication of WO2020079132A1 publication Critical patent/WO2020079132A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/02—Details of stopping control
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/541—Contacts shunted by semiconductor devices
    • H01H9/542—Contacts shunted by static switch means

Definitions

  • Switchgear for controlling the energy supply of an electrical consumer
  • the invention relates to a switching device for controlling the energy supply of a
  • switching devices that have a complex processing unit, such as a microcontroller or discrete logic components, there is a need to always convert control commands into correct switching operations. Such switching operations lead in particular to switching off an electrical consumer from one
  • EP 2 898 521 A1 teaches a switching device which comprises a control unit, a supply connection for applying a supply voltage for the switching device, a power supply unit and a first current path, which is connected to a supply network and has several switches.
  • the control unit can output switching signals for the switches, drawing the energy for the switches via the power supply unit.
  • the known switching device contains an energy store and has a measuring device connected to the control unit.
  • the energy store is provided to buffer a supply voltage applied to the switching device, which also feeds the control unit.
  • the measuring device monitors the supply voltage present at the supply connection of the switching device. If the monitored by the measuring device If the supply voltage falls within a critical range, the control unit uses the energy of the energy store to control the switches in such a way that an electrical consumer connected to the switching device is switched off from the supply network.
  • the present invention has for its object to provide a switching device for controlling the energy supply of an electrical consumer, which inexpensively and with the help of a simple circuitry design prevents incorrect switching of the switching device as a result of an unreliable power supply to the switching device and, in particular, reliably switches off an electrical consumer is possible.
  • a core idea of the invention can be seen in dispensing with a measuring device for monitoring a supply voltage applied to a switching device, so that an evaluation of a measuring signal in a control unit is no longer necessary.
  • a switching device for controlling the energy supply of an electrical consumer which has the following features:
  • a first connection device to which an energy supply device for providing a supply voltage for an electrical consumer can be connected
  • At least one controllable switching device in the at least one current path is arranged
  • a power supply unit which is electrically connected to the third connection device
  • an energy storage device which is electrically connected to the third connection device and is assigned to the power supply unit, wherein the energy storage device for internal device
  • a processing unit that is electrically connected to the power supply
  • a logic device which is connected to the fourth connection device and the third connection device and is designed to generate a binary output signal by connecting a signal applied to the fourth connection device
  • Supply voltage of the switching device which can be supplied by the power supply source, can be processed according to an AND operation, the
  • Linking device is designed such that it can provide an output signal which corresponds to a logic zero when at the third
  • Connection device no supply voltage or a supply voltage is present, which is less than or equal to a threshold value, wherein the processing unit has an input to which the binary output signal of the
  • Linking device can be created, and wherein
  • the processing unit is designed, in response to the received output signal, to control the at least one switching device such that an electrical consumer that can be connected to the second connection device can be connected to a supply voltage that can be applied to the first connection device or can be switched off from a supply voltage that can be applied to the first connection device.
  • an electrically drivable motor can be used as the electrical consumer while it is in the
  • Energy supply device for providing a supply voltage for an electrical consumer around a power supply network, in particular a
  • the combination device preferably does not generate an output signal.
  • the linking device can be connected to a clock output of the processing unit and can be designed to be one at the fourth
  • Connection device applied input signal additionally to be linked to a clock signal of the processing unit. In this way, the operation of the switching device and the processing unit can be monitored.
  • Linking device has a first coupling element, which is connected to the third and fourth connection device, and a second coupling element, which is connected to an input of the processing unit and the first coupling element.
  • the linkage device can have a third coupling element, which is connected to the clock output of the processing unit and the second coupling element.
  • the coupling elements can be capacitive or inductive coupling elements or optocouplers.
  • the third and fourth connection devices each have a potential connection and a common ground connection
  • the AND link device having an AND gate with two inputs, which is connected to the potential connection of the third
  • Connection device are connected.
  • Supply voltage at the potential connection of the third connection device or the An input signal at the potential connection of the fourth connection device in each case to be limited by an upper limit value, can be connected to the anode connection of a first Zener diode at one input of the AND gate and the anode connection of a second Zener diode can be connected to the other input of the AND gate.
  • the cathode connection of the first Zener diode is connected to the potential connection of the third connection device and the cathode connection of the second Zener diode is connected to the potential connection of the fourth connection device, while the anode connections are connected to the common ground connection.
  • the switching device is expediently arranged in a housing.
  • a system for controlling the energy supply of an electrical consumer which comprises the following features:
  • a power supply source which is connected to the third via a switching device
  • Connection device can be switched on or switched off by the third connection device
  • Fig. 1 shows a first exemplary switching device for controlling the supply of energy
  • Fig. 2a-2d a plurality of temporal signal profiles and a temporal status profile with regard to the switching device
  • Fig. 3 shows another exemplary switching device for controlling the energy supply of an electrical consumer.
  • FIG. 1 shows an exemplary switching device 10 for controlling the energy supply of an electrical consumer 40, which in the example shown can be a three-phase motor 40.
  • the switching device 10 is preferably accommodated in a housing 20.
  • the switching device 10 has a first connection device 200 to which one
  • the first connection device 200 has three connections, to which a three-phase connection
  • Power supply network 30 is connected, via which the three-phase motor 40 can be supplied with energy.
  • the three-phase motor 40 is on a second
  • Connection device 210 connected, which has three connections in the present example.
  • the switching device 10 has at least one current path 220 which is connected to the first connection device 200 and the second connection device 210. At least one controllable switching device is arranged in the current path 220.
  • the current path 220 has a first electromechanical switch 171 and a second electromechanical switch 192 connected in series thereto, which is connected in parallel to a semiconductor switching element 191.
  • the semiconductor switch can be designed, for example, as a triac.
  • the electromechanical switch 192 and the semiconductor switching element 191 together form one
  • Hybrid switch 190 The electromechanical switches 171 and 192 and the
  • Semiconductor switches 191 can each be understood as a controllable switching device in the sense of the invention.
  • the electromechanical switches 171 and 192 and the semiconductor switching element 191 are controlled via a
  • Processing unit 90 which can be designed, for example, as a microcontroller.
  • the exemplary switching device 10 has a further current path 221 connected to the first connection device 200 and the second connection device 210.
  • the current path points 221 a first electromechanical switch 170 and one in series with it
  • the switched second electromechanical switch 182 which is connected in parallel to a semiconductor switching element 181.
  • the semiconductor switch can be designed, for example, as a triac.
  • Semiconductor switching element 181 together form a hybrid switch 180.
  • the electromechanical switches 170 and 182 and the semiconductor switch 181 can each be understood as a controllable switching device in the sense of the invention.
  • the control of the electromechanical switches 170 and 182 and of the semiconductor switching element 181 likewise takes place via the processing unit 90.
  • the switching device has a third current path 222, which is connected to the first connection device 200 and the second connection device 210 and is designed as a conductor.
  • Consumers 40 are switched on or off by the power supply network 30 in a controlled manner.
  • the switching device 10 also has a third connection device with a potential connection 50 and a ground connection 51, to which one
  • Energy supply source 270 for the external provision of a supply voltage UB for the switching device 10 can be connected, for example by means of a switch 280.
  • power supply source 270 provides a DC voltage of 24V.
  • a power supply unit 80 which can be, for example, a switching power supply, is integrated in the switching device 10.
  • the power supply 80 is electrically connected to the connections 50 and 51 of the third connection device.
  • the power supply unit 80 is designed to convert the supply voltage UB which can be connected to the connections 50 and 51 into a device-internal supply voltage of 5 V, for example.
  • a decoupling diode 140 can be provided between the ground connection 51 and a connection of the power supply 80, the cathode connection of which with the
  • Ground connection 51 is connected, while the anode connection is connected to one input of the power supply 80. There is also a in the switching device 10
  • the Energy storage 81 implemented, which is electrically connected to the connections 50 and 51 of the third connection device and assigned to the power supply 80.
  • the Energy store 81 can be a capacitor which buffers the supply voltage UB which can be connected to the connections 50 and 51 in the device.
  • the energy store 81 can be arranged separately from the power supply 80 in the housing 20 or integrated in the power supply 80. This ensures that even if the
  • Supply voltage UB the power supply 80 can temporarily maintain the supply of the switching device 10.
  • the switching device 10 has a fourth connection device with, for example, a potential connection 60 and a ground connection 61, to which an external input or release signal can be applied.
  • the external connection device with, for example, a potential connection 60 and a ground connection 61, to which an external input or release signal can be applied.
  • Input signal can, for example, from a control device 290
  • connection device can be supplied, for example, by a programmable logic controller that can be connected to the fourth connection device.
  • a switching device 100, 110 is implemented in the switching device 10, which with the connections 50 and 51 of the third connection device and the
  • Connections 60 and 61 of the fourth connection device is connected.
  • Linking device is designed to generate an output signal VE by being able to process an input signal E present at potential connection 60 of the fourth connection device with a supply voltage UB present at potential connection 50 of the third connection device, which supply voltage can be supplied by energy supply source 270, in accordance with an AND link .
  • Processing unit 90 has an input 91 to which the output signal VE of the linking device 100, 110 can be applied.
  • the logic device 100, 110 is designed to provide a signal, which corresponds to a logic zero, as the output signal VE if there is no supply voltage UB or a voltage at the connections 50, 51 of the third connection device that is less than or equal to a definable threshold value.
  • Output signal is shown in Fig. 2d in connection with Fig. 2a.
  • the above-mentioned threshold value can be set via the resistor 130, for example.
  • the processing unit 90 is designed, in response to the output signal VE received at the input 91, to actuate the at least one switching device, in the present example these are the switches 170, 171, 181, 182, 191 and 192, in such a way that that at the second connection device 210 connected electrical consumers 40 can be connected to the supply voltage of the power supply network 30 or can be switched off from the supply voltage of the power supply network 30. In this way, the energy supply of the electrical consumer 40 is controlled as a function of the binary output signal VE, in particular depending on whether an error-free connection is made at the connections 50 and 51
  • the power supply 80 provides the energy for generating the switching signals for the at least one switching device, for example the switches 170, 171, 181, 182, 191 and 192, and for feeding the processing unit 90 from
  • Energy storage 81 relates.
  • the linking device can be a first coupling element
  • the first coupling element 100 is connected on the input side to the connections 50 and 51 of the third connection device and to the connection 60 of the fourth connection device.
  • the second coupling element 110 is connected on the input side to the connections 50 and 51 of the third connection device and to the connection 60 of the fourth connection device.
  • Coupling element 110 is connected to the first coupling element 100, the input 91 of the processing unit 90 and the connection 61.
  • the coupling elements 100 and 110 can each be designed as a capacitive or inductive coupling element, or as shown in FIG. 1, each as an optocoupler.
  • the coupling element 100 implemented as an optocoupler has an optical sensor
  • the senor 101 for example in the form of a light-emitting diode or laser diode, the
  • Anode connection is connected, for example, via current limiting resistor 130 to potential connection 50, and its cathode connection is connected directly or via decoupling diode 140 to ground connection 51.
  • the resistor 130 and the optical transmitter 101 are thus connected in series and in parallel to the input of the power supply 80.
  • the coupling element 100 has, for example, a photo transistor as an optical receiver 102, io
  • connection 60 for example, via a current limiting resistor 150.
  • the emitter connection of the optical receiver 102 is connected to the anode connection of an optical transmitter 112, realized as a laser or light-emitting diode, of the second coupling element 110.
  • the cathode connection of the optical transmitter 112 can be connected directly or, as shown, via a third coupling element 120 to the ground connection 61 of the fourth
  • Connection device of the switching device 10 may be connected.
  • the optical transmitter 112 can in turn be connected to the second ground connection 61 via a decoupling diode 160.
  • the coupling element 110 also has an optical receiver 111, which in turn can be designed as a phototransistor.
  • Emitter connection of the optical receiver 111 are with the input 91 of the
  • Processing unit 90 connected and deliver the binary output signal VE of the logic device.
  • the two optocouplers 100 and 110 forming the linking device essentially perform an AND operation with the supply voltage UB which can be connected to the connections 50 and 51 and the input signal present at the connection 60 in such a way that if the
  • Supply voltage UB at the connections 50 and 51 and the input signal E at the connections 60 and 61 of the optical receiver 111 is conductive and thus an output signal VE corresponding to a logic 1 at the input 91 of the
  • Processing device 90 generated. If the supply voltage UB falls below the threshold value or even completely for whatever reason, then the current flowing through the optical transmitter 101, which is limited by the current limiting resistor 130, is no longer sufficient to activate the optical transmitter 101. As a result, the optical receiver 111 blocks and an output signal is no longer generated, ie the output signal corresponds to a logic zero. The missing output signal is "applied” as a logic zero at the input 91 of the processing unit 90, whereupon the processing unit 90 controls the switches 170, 171, 181, 182, 191, and 192 in such a way that the electrical consumer 40 is switched off from the power supply network 30 without arcing .
  • the switching elements 170, 180 provided in the current paths 220 and 221
  • Reliefwiese 171 and 190 can be controlled in a known manner such that a contact-friendly, that is, arcing-free switching off the
  • electromechanical switches 170 and 182 or 171 and 192 is possible. Assume that all electromechanical switches are closed and the
  • Wire switches are open. If the motor 40 is to be switched off, for example, at the time t2, the processing unit 90 generates corresponding switching signals in such a way that first the semiconductor switches 181 and 191 are switched to be electrically conductive and then the switches 182 and 192 are opened, then the semiconductor switches 181 and 191 are again switched to be electrically non-conductive and then switches 170 and 171 are opened.
  • FIGS. 1-10 An exemplary behavior of the switching device 10 and the motor 40 is shown in FIGS.
  • FIG. 2a shows the time profile of the supply voltage UB, which is applied to the connections 50 and 51 at the time t0 and fails, for example, at the time t2.
  • 2c shows the temporal course of the input signal E, which is applied to the connection 60 at the time t1 and remains applied beyond the time t2.
  • Fig. 2e shows the operating state of the motor 40.
  • Fig. 2f shows the time course of the output signal VE of the logic device without modulation by a
  • the logic device 100, 110 If the supply voltage UB is properly applied to the connections 50 and 51 of the switching device 10 and the input signal E is applied to the connection 60 at the time t1, the logic device 100, 110 generates the output signal VE, i.e. the phototransistor 11 is conductive. This state corresponds to a logic 1.
  • the processing device 90 controls the switches 170, 171, 181, 182, 191, and 192 in such a way that the electrical consumer 40 connects to the
  • Power supply network 30 is turned on. In this state they are
  • Processing unit 90 is powered by the power supply 80. Does that fall
  • the linking device can be connected to a clock output 92 of the processing unit 90 and can be designed to additionally provide an input signal E present at the potential connection 60 of the fourth connection device with a clock signal VO of the processing unit 90 to modulate.
  • An example of the time profile of the clock signal VO is shown in FIG. 2b, while the resulting time profile of the output signal VE of the linkage device 100, 110 is shown in FIG. 2d.
  • a third coupling element 120 can be provided, which can be assigned to the linkage device 100, 110.
  • the third coupling element 120 can in turn be designed as a capacitive or inductive coupling element or, as can be seen in FIG. 1, as an optocoupler 120.
  • Coupling element 120 can have an optical transmitter 121, which can be designed, for example, as a light-emitting diode.
  • the anode and cathode connections of the optical transmitter 121 are connected to the output 92 of the processing unit 90.
  • the coupling element 120 can have an optical receiver 122, which in turn can be designed as a phototransistor.
  • the collector connection of the phototransistor 122 is connected to the cathode connection of the optical transmitter 112 of the second coupling element 110, while the emitter connection of the phototransistor 122 is connected, for example, via the decoupling diode 160 to the
  • Ground connection 61 of the fourth connection device is connected.
  • the input signal E present at the connection 60 via the resistor 150, the phototransistor 102, the photodiode 110, the phototransistor 122 and the
  • Decoupling diode 160 led to ground connection 61 and modulated with the clock signal VO when the supply voltage UB is properly applied.
  • the modulated input signal E is reported back to the input 91 of the processing unit 90 via the output signal VE of the linking device.
  • the processing unit 90 can immediately react to a faulty supply voltage UB, as explained above, and a faulty clock signal or faultily modulated output signal VE, for example by immediately switching off the motor 40.
  • the switching device 10, the energy supply source 270, the switch 280 and the control device 290 preferably form a system 70 for controlling the energy supply of the electrical consumer 40.
  • the electrical load 40 and the power supply network 30 can be regarded as components of the system 70.
  • FIG. 3 shows a further exemplary switching device 10 'for controlling the
  • the switching device 10 ' is preferably housed in a housing 20'.
  • the switching device 10 ' has a first connection device 200' to which an energy supply device for providing a
  • the first connection device 200 ′ has three connections to which a three-phase power supply network 30 is connected, with which the
  • Three-phase motor 40 can be supplied.
  • the three-phase motor 40 is connected to a second connection device 2 10 ′, which in the present example has three connections.
  • the switching device l0 ' has at least one current path 220' which is connected to the first connection device 200 'and the second connection device 2l0'. At least one controllable switching device is arranged in the current path 220 '.
  • the current path 220 ' has a first one electromechanical switch 171 'and a second electromechanical switch l92' connected in series thereto, which is connected in parallel to a semiconductor switching element 191 '.
  • the semiconductor switch can be designed, for example, as a triac.
  • the electromechanical switch l92 'and the semiconductor switching element 19G together form a hybrid switch l90'.
  • the electromechanical switches 171 'and l92' and the semiconductor switch 19G can each be actuated as one
  • Switching device can be understood in the sense of the invention.
  • the control of the electromechanical switches 171 ′′ and l92 ′′ and of the semiconductor switching element 191 ′′ takes place via a processing unit 90 which can be designed, for example, as a microcontroller.
  • the exemplary switching device 10 ' has a further current path 22 G connected to the first connection device 200' and the second connection device 210 '.
  • the current path 22 G has a first electromechanical switch 170 'and a second electromechanical switch 182' connected in series, which is connected in parallel to a semiconductor switching element 18 G.
  • the semiconductor switch can be designed, for example, as a triac.
  • Semiconductor switching element 18G in turn form a hybrid switch 180 '.
  • the electromechanical switches 170 'and 182' and the semiconductor switch 18G can each be understood as a controllable switching device in the sense of the invention.
  • the control of the electromechanical switches 170 'and 182' and the semiconductor switching element 181 ' is also carried out via the processing unit 90'.
  • the exemplary switching device has a third current path 222 ', which is connected to the first connection device 200' and the second connection device 2l0 'and is designed as a conductor.
  • the electrical consumer 40 can be switched on or off from the power supply network 30 in a controlled manner via these three current paths.
  • the switching device 10 ' also has a third connection device with a potential connection 50' and a ground connection 6 G, to which one
  • the energy supply source 270 ' provides, for example, a DC voltage of 24V.
  • a power supply 80 ' is integrated in the switching device 10', in which it is
  • the power supply 80 ′′ is electrically connected to the connections 50 ′′ and 61 ′′ of the third connection device.
  • the power supply 80 ′′ is designed to be connectable to the connections 50 ′′ and 61 ′′
  • a decoupling diode 140 ′ can be provided between the connection 50 ′′ and a connection of the power supply 80 ′′
  • Anode connection is connected to the connection 50 'during the
  • Cathode connection is connected to an input of the power supply 80 '.
  • an energy storage device 81 is implemented in the switching device 10, which is electrically connected to the
  • the switching device 10 has a fourth connection device with, for example, a potential connection 60 and the common ground connection 61, to which an external input or enable signal can be applied.
  • the external input signal can be supplied, for example, by a control device 290 ′, for example by a programmable logic controller, which can be connected to the fourth connection device.
  • a linkage device 240 is provided in order to be able to reliably prevent switching device 10 'from switching incorrectly if the supply voltage UB fails.
  • which is designed as an AND gate, which has two inputs and one output. One input is assigned to the potential connection 50 ', while the other input is assigned to the potential connection 60'.
  • the logic device implemented as an AND gate carries out an AND operation with the supply voltage UB present at connection 50 'and the input signal E present at connection 60', a binary output signal, which can be zero or one, being present at the output .
  • the output signal of the AND gate 240 is fed to an input 91 'of the processing unit 90'.
  • one input of the AND gate 240 is via a first Zener diode 250 with the potential input 50 'of the third connection device and the other input of the AND gate 240 is via one second Zener diode 251 connected to the potential connection 60 'of the fourth connection device.
  • the anode connection of the Zener diode 250 is connected to the first input of the AND gate 240, while the cathode connection is assigned to the potential connection 50 ', to which the supply voltage UB can be applied.
  • the second input of the AND gate 240 is connected to the anode connection of the Zener diode 251, the cathode connection of which is connected to the potential connection 60 ', to which an input signal can be applied.
  • the anode connection of the first Zener diode 250 can be connected to the common ground connection 61 'via a resistor 260, while the anode connection of the other Zener diode 251 can also be connected to the ground connection 61' via a resistor 261.
  • the Zener diode 251 defines, with the resistor 261, the switch-on threshold of the one input of the AND gate 240 with regard to the potential connection 60. This means that if the input signal E present at the potential connection 60 'is greater than the specified one
  • the assigned input of the AND gate 240 detects a logic 1.
  • the Zener diode 250 defines with the resistor 260 the switch-on threshold of the other input of the AND gate 240 with regard to the potential connection 50 '. This means that when the
  • the two limits are
  • the functioning of the switching device 10 ' essentially corresponds to that of the
  • the two inputs of the AND gate 240 each recognize a logic 1, which leads to a logic 1 at the output of the AND gate, which is also present at the input 91 'of the processing unit 90'. If the input signal E is switched off or, for example, the supply voltage UB drops or drops out, this leads to a logic 0 being present at the output of the AND gate 240 and thus at the input 91 'of the processing unit 90'. In response to a logical 0, the
  • Processing unit 90 for example, switches 170 ′′, 171 ′′, 181 ′′, 182% 191 ′′ and l92 ′′ in the manner described with regard to switching device 10 in order to switch off motor 40 from power supply network 30.
  • the switching device 10% form the energy supply source 270 ′′, the switch 280 ′′ and the control device 290 ′′ preferably a system 70 ′′ for controlling the energy supply of the electrical consumer 40.
  • the electrical load 40 and the power supply network 30 can be regarded as components of the system 70.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Power Conversion In General (AREA)

Abstract

L'invention concerne un appareil de commutation (10) destiné à commander l'alimentation en énergie d'un récepteur électrique (40). En vue de pouvoir garantir un comportement de commutation fiable même en cas de défaillance d'une tension d'alimentation (UB) pour l'appareil de commutation (10), l'appareil de commutation (10) possède un dispositif d'opération logique (100, 110) qui peut traiter un signal d'entrée (E) avec la tension d'alimentation (UB) selon une opération logique ET et peut délivrer un signal de sortie binaire. Une unité de traitement (90) est en outre présente et conçue pour, en réaction au signal de sortie binaire du dispositif d'opération logique (100, 110), commander au moins un dispositif de commutation (170) de telle sorte qu'un récepteur électrique (40) raccordé à l'appareil de commutation (10) puisse être connecté à une tension d'alimentation ou déconnecté de la tension d'alimentation.
PCT/EP2019/078186 2018-10-17 2019-10-17 Appareil de commutation pour commander l'alimentation en énergie d'un récepteur électrique Ceased WO2020079132A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201980068620.XA CN112913099B (zh) 2018-10-17 2019-10-17 用于控制用电器的能量供应的开关设备

Applications Claiming Priority (2)

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DE102018125798.8 2018-10-17
DE102018125798.8A DE102018125798B3 (de) 2018-10-17 2018-10-17 Schaltgerät und System zur Steuerung der Energiezufuhr eines elektrischen Verbrauchers

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WO2014032718A1 (fr) * 2012-08-30 2014-03-06 Siemens Aktiengesellschaft Appareil de commutation permettant de commander l'alimentation en énergie d'un moteur électrique monté en aval
EP2898521A1 (fr) 2012-11-19 2015-07-29 Siemens Aktiengesellschaft Appareil de commutation pour la commande de l'alimentation en énergie d'un moteur électrique disposé en aval
WO2017089549A1 (fr) * 2015-11-27 2017-06-01 Phoenix Contact Gmbh & Co.Kg Appareil de commutation et système de mise en circuit et hors circuit d'une charge électrique

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EP2898521A1 (fr) 2012-11-19 2015-07-29 Siemens Aktiengesellschaft Appareil de commutation pour la commande de l'alimentation en énergie d'un moteur électrique disposé en aval
WO2017089549A1 (fr) * 2015-11-27 2017-06-01 Phoenix Contact Gmbh & Co.Kg Appareil de commutation et système de mise en circuit et hors circuit d'une charge électrique

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