EP2677899A1 - Mécanisme d'entraînement à moteur électrique pour meubles - Google Patents

Mécanisme d'entraînement à moteur électrique pour meubles

Info

Publication number
EP2677899A1
EP2677899A1 EP12705686.9A EP12705686A EP2677899A1 EP 2677899 A1 EP2677899 A1 EP 2677899A1 EP 12705686 A EP12705686 A EP 12705686A EP 2677899 A1 EP2677899 A1 EP 2677899A1
Authority
EP
European Patent Office
Prior art keywords
supply device
auxiliary
furniture drive
mains
electromotive furniture
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.)
Granted
Application number
EP12705686.9A
Other languages
German (de)
English (en)
Other versions
EP2677899B1 (fr
Inventor
Armin Hille
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.)
Dewertokin GmbH
Original Assignee
Dewertokin GmbH
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 Dewertokin GmbH filed Critical Dewertokin GmbH
Publication of EP2677899A1 publication Critical patent/EP2677899A1/fr
Application granted granted Critical
Publication of EP2677899B1 publication Critical patent/EP2677899B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/04—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination
    • A47C20/041—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination by electric motors
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/04—Tables with tops of variable height with vertical spindle
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/005—Leg adjustment
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/005—Leg adjustment
    • A47B2200/0056—Leg adjustment with a motor, e.g. an electric motor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2203/00—General characteristics of devices
    • A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
    • A61G2203/12—Remote controls
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/018—Control or drive mechanisms

Definitions

  • the invention relates to an electromotive furniture drive with a power supply device for adjusting movable furniture components relative to each other.
  • Such electromotive furniture drives are known in different embodiments. They are designed as linear drives with a linearly adjustable output member or as rotary drives with a rotating output member and have proven themselves in practice.
  • the linear drives have one or a number of electric motors, wherein each motor is followed by a Drehierereduziergetriebe and another the Drehierereduziergetriebe downstream transmission, for example in the form of a threaded spindle gear, which generates a linear movement of the driven member from the rotational movement of the motor.
  • the rotary drives have at least one speed reduction gear connected downstream of the respective electric motor, with the last gear element forming the driven element.
  • the output member of the respective electromotive furniture drive communicates with a fixed and / or with a movable furniture component, so that during an operation of the electric motor, the movable furniture components are adjusted relative to each other.
  • the furniture can be used as a slatted frame, worktable, bed, lying surface, treatment bed, hospital or nursing bed, as well as one
  • Lifting device be designed for persons such as lifters or patient lifts.
  • auxiliary voltage source which provides an electrical energy for switching or at least initiating a changeover from a switched-off idle state to a switched-on operating state for triggering the switching signals.
  • the mains isolator eg an apartment
  • the mains isolator is inserted between the housing installation and the public power grid and detects whether an electrical consumer, eg light, is on or off.
  • the housing installation is meant the electrical wiring of the apartment for the mains voltage.
  • the mains isolator disconnects the residential installation from the public power grid.
  • the mains circuit breaker generates a test voltage, eg a harmless DC voltage of a certain height, and switches this to the housing installation. If a consumer is now switched on, this detects the test voltage and causes the mains isolator to reconnect the residential installation to the public power grid.
  • a test voltage eg a harmless DC voltage of a certain height
  • Such a power switch can also be used in areas or in each case for a room.
  • the invention is therefore an object of the invention to provide an improved elektromotori- see furniture drive with a mains isolation device.
  • the object is achieved by an electromotive furniture drive with the features of claim 1.
  • the electromotive furniture drive has an auxiliary power storage, which is decoupled from the power supply device, connected to the auxiliary supply device and can be charged by the auxiliary supply device.
  • the electromotive furniture drive comprises at least one reversible electric motor, wherein each electric motor is followed by a speed reduction gear and wherein each speed reduction gear is followed by another gear
  • the power supply device has a network connection which is connectable to the network by the Netzokscroteseininnchtung, wherein the power supply device, the network-side input voltage in at least one output side Transformed low voltage, and an isolation transformer or a transmission unit for galvanic separation between the mains-side input side and the low-voltage output side for operating the electromotive furniture drive, wherein the Netzkascroteseininnchtung an auxiliary supply device, at least one power disconnect switch, which is opened in the off state and closed in the on state, and a chargeable Hilf
  • the electromotive furniture drive has a decoupled from the power supply auxiliary power storage, which is connected to the auxiliary supply device and can be charged by the auxiliary supply device.
  • the Netzkascrotenchtung has another state ready for operation, in which the auxiliary supply device is connected to the network and the mains disconnector is open. This results in a lower consumption of electrical energy.
  • the Netzkascroteignchtung cooperates with all parent Netzkeschaltern and has an auxiliary voltage source in the form of the auxiliary supply device for reconnecting the power disconnect switch, wherein an auxiliary power storage is provided, which is designed as a capacitor of high capacity.
  • the auxiliary supply device is a transformer, a miniature switching power supply, an active optocoupler with a photovoltaic output, a light bulb solar cell unit, etc., wherein these are known from the Auxiliary power supply device formed for charging the auxiliary power memory by pressing the manual control or other switch, as will be explained in more detail below by switch 2 or switch 3, is activated. Activation is defined by two options:
  • auxiliary supply device designed as a switched-mode power supply unit
  • the auxiliary supply device is activated by three (at least two) switches acting in parallel:
  • Switch 1 is the manual control button. Upon actuation, a circuit of hand-held pushbutton auxiliary power storage coupler is closed. The coupling device connects the auxiliary supply device to the network.
  • Switch 2 is an interval switch for cyclically charging the auxiliary power storage.
  • Switch 3 is a threshold or event switch, for initial startup, or simply a push button.
  • the auxiliary power memory provides a stored auxiliary power, with which the mains isolation device can be switched from the switched-off state into the further state ready for operation. For this purpose, only a small amount of power has to be expended, since the mains disconnector is not activated or fed by the auxiliary power storage.
  • the auxiliary power storage can be connected to a coupling device, wherein the coupling device is provided for connecting the auxiliary supply device to the network.
  • the auxiliary supply device is switched on by means of low power, which in turn provides the power required for switching the mains circuit breaker.
  • the auxiliary supply device comprises in one embodiment a transformer or a high-frequency transformer.
  • the coupling device with a switch for example in the form of an electromechanical switch or a semiconductor switch or another coupling element is provided, which connects the network electrically conductively connected to at least one terminal of the primary winding of the transformer of the auxiliary supply device.
  • the auxiliary supply device has another transformer, for example a high-frequency transformer, an electronic transformer or a voltage converter, which is operated by a clock-generating control component of a DC link with a high switching frequency.
  • the intermediate circuit essentially consists of a high-frequency semiconductor switch which is driven at high frequency and switches energy from the network to at least one terminal of the primary winding to the high-frequency transformer, and a control module which drives the high-frequency semiconductor switch via its output, and a signal feedback, for example as Optocoupler is formed and is electrically connected to the input of the control module.
  • a first embodiment of the coupling device has a switch, for example in the form of an electromechanical switch or a semiconductor switch or another coupling element, which is arranged on the intermediate circuit or in the intermediate circuit.
  • the switch of the coupling device may be electrically conductively connected to one terminal of the high-frequency switch and / or to one terminal of the control module and / or to one terminal of the signal feedback and / or to one terminal of the optocoupler of the signal feedback.
  • a second embodiment of the coupling device to a voltage generation, which is formed for example by an output of a photovoltaic coupler. In this case, this voltage generation is electrically connected to the supply terminals of the control module of the intermediate circuit. In a particularly advantageous manner, activation or switching on of the auxiliary supply device by the coupling device is thus possible.
  • the auxiliary supply device can also supply consumers such as switches / radio and infrared receivers and status displays with energy, this being possible in the further state ready for operation of the mains isolation device, without the power supply device is switched on with higher power consumption.
  • auxiliary power storage also consumers such as switches / radio and infrared receiver, Verstellwe- supply power to the detection systems, microprocessors and status displays, regardless of the operating states of the power supply device and / or the power supply device and / or the auxiliary supply device.
  • the coupling device has a galvanic isolation. This is possible, for example, by means of an optocoupler.
  • a bridging device is provided parallel to the coupling device which bridges the coupling device during a first mains connection and connects the auxiliary supply device to the network for a predetermined time for charging the auxiliary power memory.
  • the auxiliary supply device can be connected by means of a charging switch regularly o / / and in dependence on a state of charge of the auxiliary power storage with the network. This is a constant operational readiness of the electromotive furniture drive achieved with the lowest power consumption.
  • the auxiliary supply device is designed as a miniature switching power supply. As a result, space and weight is saved, especially since the miniature switched-mode power supply can be designed as a wide-range miniature switched-mode power supply, so that all types of internationally known mains voltages and mains frequencies can be operated on it.
  • the auxiliary supply device is provided with a switchable and / or variable initial load, which is designed and temporarily connectable to a power cable, that a clear detection of the switched auxiliary supply device by a parent Netzkeschal- device is possible. In this way, a function of the electromotive furniture drive with higher-level power switches is possible.
  • the auxiliary power storage is arranged in the power cut-off device and / or the motor control.
  • the auxiliary power memory for example, is arranged on the board on which the associated wiring to the control lines are provided.
  • the motor control and / or the manual control can be provided with an auxiliary power source, which can be eg a battery, an accumulator or / and a capacitor. This also makes an emergency lowering function possible.
  • the electromotive furniture drive can also meet the demand for low power consumption of devices in stand-by mode.
  • the electromotive furniture drive 1 in this embodiment is a so-called linear drive 2, and the power supply device 5 is e.g. formed with a isolation transformer, rectifier and filter circuit or as a switching power supply.
  • the linear drive 2 has, depending on the direction of rotation of an electric motor, not shown, a retractable and extendable lifting tube 3, at its free end a connection part in the form of a clevis 4 is attached.
  • Another connection part in the form of a further fork head 4 is fastened to the housing of the linear drive 2.
  • the respective connection part is in a manner not shown in each case with a furniture component in connection, so that move the connected to the linear drive 2 furniture components relative to each other during operation of the electric motor.
  • the mains isolation device 9 is connected according to the illustration of Figure 1 via a power cord 10 with a power plug 8, wherein in another and not shown embodiment of the power plug 8 at the power cut-off device 9 may be arranged.
  • the Netzkascenseinnchtung 9 may be integrated in the power supply device 5. It should be noted that then the power supply device 5 is provided according to the illustration of Figure 1 with an enclosing housing, so that the power plug 8 can be attached to the housing or formed.
  • the Netzokoscenseinnchtung 9 is electrically connected to the power supply device 5 via a power line 1 1.
  • An output of the power supply device 5 is connected via a supply line 12 to a motor controller 6, to which the linear drive 2 (also representative of more than one linear drive 2) with a motor line 13 is connected.
  • the Netzokoscenseinnchtung 9 via the power supply device 5 with the motor controller 6 is additionally connected by control lines 15 and 16 and a charging line 17.
  • control lines 15 and 16 and a charging line 17 The functions of these lines 15, 16 and 17 will be explained in more detail below.
  • a manual control 7 is connected in a wired form with a control line 14, wherein according to the illustration of Figure 1, the manual control 7 has two push buttons.
  • the handset 7 is coupled to the motor controller 6 via a wireless link and transmits radio waves or infrared light waves to control the at least one electric motor, i. Linear drive 2 to the motor controller 6.
  • the motor controller 6 is designed as a relay control with relay switches and / or as a semiconductor circuit with semiconductor switches.
  • the manually operable push-button switch of the manual control 7 switch the control current of the relay switch or the semiconductor switch, wherein the circuit breaker of the relay switch or the semiconductor switch switch the high motor current of the linear actuator 2.
  • the manual control 7 is connected to the motor control 6, which connects the supply line 12 of the energy supply device 5 and a motor line 13 of the electric motor of the linear drive 2 and the electrical lines of the manually operated push button switch of the hand control 7 connects with each other.
  • the contacts of the manually operable push-buttons of the hand-operated tion 7 designed as a circuit breaker and switch at keystroke the high motor current of the electric motor of the linear actuator.
  • the power supply device 5 is inserted into the housing of the linear drive 2 or attached thereto, wherein the linear drive 2 can be constructed in a manner not shown in the manner of a double drive, which at least one motor, but preferably two Engines motors in a common housing.
  • the power plug 8 passes via the power cord 10, the input-side network voltage first to the Netzokoscrotenchtung 9, which will be described in more detail below.
  • the Netzkascrotenchtung 9 has three states. In a first state, the Netzkascrotenchtung 9 is off, in a second state, it is ready for operation and in a third state, the Netzkascrotenchtung 9 is turned on.
  • the Netzokoscigenseinrichtchtung 9 If the Netzkascariaseinrichtchtung 9 is turned on, e.g. activated by an actuated manual operation, it connects the power cable 10 via the power line 1 1 to the power supply device 5, which outputs a secondary voltage in the form of a DC voltage as the operating voltage on the secondary side and forwards them to the motor controller 6.
  • the operating voltage is e.g. in the amount of about 29 V and is used in an operating state of the power supply device 5 for operating the motor controller 6 and the linear drive. 2
  • FIG. 2 shows a schematic block diagram of an exemplary embodiment of the furniture drive according to FIG. 1.
  • the Netzkascrotenchtung 9 includes a power disconnect switch 20 with a control switch 20a; an auxiliary supply device 21 (also referred to as an auxiliary voltage source); and a coupling device 24.
  • the Netzkascrotenchtung 9 also has a charging circuit 26 in addition.
  • the power disconnect switch 20 is executed here two-pole with closing contacts. It is in this case a two-pole network relay, which is controlled by the control switch 20a. That is, in the first and second states (off and on) of the power-off device 9 is the power-off switch 20 open, in the third state (turned on) the Netzokoscroteseinnchtung 9, the power disconnect switch 20 is closed.
  • the auxiliary supply device 21 is here equipped with a transformer 22 and a rectifier 23 and provides an auxiliary supply power at its output A for the one to supply the mains disconnector 20 and the other to supply the charging circuit 26 is available.
  • the auxiliary supply device 21 is formed in one embodiment as a small switching power supply to the transmitter 22.
  • the transformer 22 is a high-frequency transformer.
  • the auxiliary supply device 21 is connected directly to an input E with a line of the power cable 10, wherein the other line of the power cable 10 via the coupling device 24 to the input E of the auxiliary supply device 21 is connectable.
  • the auxiliary supply device 21 In the first state of (off) the Netzkascenseinnchtung 9, the auxiliary supply device 21 is turned off.
  • the auxiliary power supply 21 is turned on, i. connected to the power cord 10 and thus to the mains voltage of a connected electrical supply network.
  • the auxiliary supply device 21 is formed with a El-core transformer or toroidal transformer as a transformer 22.
  • the output A and its provided auxiliary supply voltage are galvanically isolated from the electrical supply network due to the transformer 22.
  • the auxiliary supply device 21 is switched on and off.
  • the coupling device 24 has a control element 24a and an interacting with this of the control element 24a electrically isolated Kopel pelelement 24b.
  • the coupling device 24 is an optocoupler, wherein the control element 24a is a lighting means, e.g. an LED is, and the coupling element 24b is designed as a photosensitive switching transistor with a corresponding dielectric strength with respect to the mains voltage.
  • the coupling element 24b is arranged on or in an intermediate circuit of the auxiliary supply device 21 described above, if this is designed as a switching power supply.
  • the charging circuit 26 serves to provide a charging voltage for an auxiliary power storage 27, which is formed in this embodiment as a high-capacitance capacitor, for example, a so-called gold-cap capacitor. Its function will be explained in more detail below.
  • the auxiliary power storage device 27 is charged by the auxiliary supply device 21 via the charging circuit 26 in the second and third states (ready and switched on) of the power cut-off device 9.
  • the auxiliary power storage 27 is disposed in the engine controller 6.
  • the motor control 6 comprises a control unit 6a, to which the linear drive 2 and the manual control 7 are connected, as well as a control signal distributor 28 and a charging switch 29.
  • the auxiliary power storage 27 is connected to an output A with an auxiliary supply line 18 and a common line 19, e.g. a ground or negative lead, connected to the control signal distributor 28.
  • the common line 19 is also connected to the control unit 6a and via the control signal distributor 28 to the control switch 20a and the coupling device 24.
  • the manual control 7 is connected via a manual control line 14a to the control line 14 to the control unit 6a and also connected via a trigger line 14c with the control signal distributor 28.
  • a remote control receiver 30, e.g. for radio / infrared control be coupled via a remote control line 14b to the control line 14.
  • the control signal distributor 28 is connected to the control switch 20a of the mains disconnecting switch 20 of the mains disconnecting device 9 via a control line, the control switching line 15 (see also FIG. 1) and via a further control line, the coupler line 16 to the control element 24a of the coupling device 24.
  • the charging switch 29 is connected to the signal distributor 28 in this embodiment.
  • the charging switch 29 is further connected to a measuring terminal MA of the auxiliary power storage 27.
  • the control signal distributor 28 serves to separate the different control lines 14, 15, 16 so that no repercussions can occur on other units connected thereto. This can e.g. be effected by means of diode gate. Other versions are of course possible.
  • the mains isolation device 9 is switched off from the first state switched off in the second state ready for operation by the stored in the auxiliary power storage 27 electrical energy.
  • the low power of the auxiliary power storage 27 is sufficient, so that the auxiliary power storage 27 may be formed correspondingly small.
  • the remote control receiver 30 may also trigger the above-described operations.
  • the remote control receiver at its output switches, for example in the form of transistor Switch, which are arranged equivalent to the triggering by pressing a button of the manual control 7.
  • the charging switch 29 serves to cause an automatic charging of the auxiliary power storage 27.
  • the charging switch 29 may have a timing circuit which causes a regular charging.
  • the charging switch 27 is caused to cause charging of the auxiliary power storage 27 by a voltage request of the auxiliary power storage 27. In this case, the voltage of the auxiliary power storage 27 at the measuring tap MA is compared with a value. As soon as this value is reached, the auxiliary power storage 27 is charged.
  • Such charging which is initiated regularly or when a voltage limit value is reached, occurs in that the charging switch 29 has a switching output, for example in the form of a transistor switch, and a control voltage via the control signal distributor 28 selectively outputs a control signal to the coupling device 24 via the coupler line 16.
  • This causes the auxiliary supply device 21 to be turned on. That is, the mains isolation device 9 switches from the first state turned off in the second state ready, and ready for operation only in this second state. The third state is turned on is not taken, since this is not necessary to load the auxiliary power memory 27, because the auxiliary power memory 27 is charged via the switched by means of the coupling device 24 auxiliary supply device 21.
  • This charging process takes only a short period of time, since the auxiliary power memory 27 only requires such a charge, which is necessary for the activation of the coupling device 24.
  • the charging process can be time-controlled or voltage-controlled via the measuring tap MA. If the auxiliary power memory 27 is recharged, the mains disconnecting device 9 changes from the second state ready for operation back to the first state turned off.
  • the input E of the auxiliary supply device 21 may be provided with a switchable and / or variable initial load, which trained so and is temporarily connectable to the terminals of the power cord 10 that a clear detection of the switched-auxiliary device 21 through the parent mains isolation is possible, which is not shown here.
  • the temporarily switchable initial load can be switched by, for example, a transistor switch or by the coupling device 24 or by a further coupling device, not shown.
  • the primary coil of the transformer 22 is designed as an initial load, because in one embodiment it has a relatively low internal resistance.
  • the transformer 22 may be formed as El-core transformer.
  • an electrical resistance is connected in parallel to the primary coil of the transformer 2 or the transformer, not shown, of the auxiliary supply device 21.
  • the coupling element 24b of the coupling device 24 is connected in parallel in the embodiment shown in Figure 2 with a bridging circuit 25.
  • the bypass circuit 25 is used in an embodiment as an automatic switch at a first connection of the electromotive furniture drive 1 to the electrical supply network for immediate and automatic charging of the auxiliary power storage 27 by the mains isolation device 9 as described above by connecting the auxiliary supply device 21 with the power cord 10 from the first State is switched off in the second state ready, wherein the auxiliary power storage 27 is charged.
  • This charging process takes place as already explained above in a very short time, so that the electromotive furniture drive 1 can be used within a few seconds, for example within 2 or 3 seconds.
  • the bridging circuit 25 may be formed with a bridge rectifier 25a and a timing element 25b, here an RC element.
  • the coupling element 24b of the coupling device 24 is thus bridged for a certain time, the duration of the time depends on the structural design of the RC element and fractions of a second to a few seconds, for example, up to 10 seconds. Furthermore, the resistance of the RC element is designed as a high-resistance resistor, such that the current flow through the resistor after application of the mains voltage is very small, thus considered negligible, and thereby practically only for a short time current flows to the auxiliary supply device 21, when mains voltage is applied. According to FIG.
  • a PTC element can also be provided, which first of all transmits current parallel to the coupling element 24b due to a low resistance, but then assumes a high resistance due to the current and practically the same Power interrupts.
  • the PTC element can persist in this state after the transition to the state of high internal resistance and only falls back to the original state when the mains voltage is removed.
  • Other configurations of a PTC element have an alternating character, with the internal resistance initially increasing after a certain period of time after the mains voltage is applied, and later the internal resistance alternating between a maximum value and a smaller value.
  • the bypass circuit 25 may also include a wiper circuit and / or a timer.
  • a manually operated button can also be provided in order to be able to charge manually.
  • a further embodiment of the electromotive furniture drive 1 includes in accordance with the invention a bridging circuit 25 or another bridging circuit 25 according to the manner described above and is provided according to Figures 3 and 4 with the terminals a and b, wherein the terminals a and b with the terminals 31st and 32 are connected as shown in FIG.
  • the connection 31 is arranged in a line between the coupling element 24b and the auxiliary supply device 21.
  • the first mains potential for example the mains potential of the phase, is present.
  • the terminal 32 is directly connected to another line of the network, wherein at the terminal 32 during operation of the electromotive furniture drive 1, the second power potential, for example, the potential of the neutral conductor or the center conductor, is applied.
  • a further embodiment of the electromotive furniture drive 1 has a bridging circuit 25 or a further bridging circuit 25, which is connected to the terminals 32 and 33 as shown in FIG.
  • the terminal 33 is the operation of the electromotive furniture drive 1, the first power potential, for example, the grid potential of the phase to.
  • the function of the bypass circuit 25, which is connected with its terminals a and b at the terminals 31 and 32 and / or at the terminals 32 and 33, is as follows: Starting from the de-energized state of the system, the bypass circuit 25 at the moment of applying a Mains voltage electrically continuous and conductive and acts at the moment of initial commissioning as a consumer.
  • the RC element or the PTC element is designed such that the test voltage of a higher-level mains isolation, which can also be described as a so-called home mains isolation, at the terminals 31, 32nd and / or 32, 33 connected bridging circuit 25 as a consumer detected and then turns on. This can be ensured in accordance with the invention that the electromotive furniture drive 1 described above can be operated smoothly with any design of a parent power cut.
  • auxiliary power source may e.g. a battery / rechargeable battery / a capacitor and also serve for emergency lowering.
  • the coupling device 24 may e.g. also be a photovoltaic optocoupler. Further embodiments are conceivable, such as relay, coil / Hall sensor, Lampe-LDR, coil with primary and secondary resonant circuit, miniature transformer with upstream sine wave generator, etc. In a preferred embodiment of the coupling device 24, this has a control element 24a and a coupling element 24b , which are galvanically separated from each other. In a simplified embodiment of the coupling device 24, this is formed for example by a semiconductor switch, wherein the control element 24a and the coupling element 24b have a common terminal.
  • auxiliary supply device 21 is designed as a switched-mode power supply, its control circuit can also be connectable to the network by means of a coupling device via a suitable voltage regulator circuit.
  • the power disconnect switch 20 may also include semiconductor switches, eg triac, MOSFET.
  • a charging of the auxiliary power storage 27 can also be done for example via active optocouplers, wherein the auxiliary supply means 21 feeds the optocoupler and its photovoltaic element, the charging power to the auxiliary power storage 27 supplies. Other couplings are of course possible. LIST OF REFERENCE NUMBERS

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un mécanisme d'entraînement à moteur électrique pour meubles (1) destiné à déplacer des éléments mobiles d'un meuble les uns par rapport aux autres, lequel mécanisme comprend un dispositif d'alimentation en énergie (5), une commande manuelle (7) et un dispositif de déconnexion du réseau (9) qui peut être commuté d'un état connecté à un état déconnecté et inversement. Le mécanisme d'entraînement à moteur électrique pour meubles (1) présente au moins un moteur électrique dont le sens de rotation peut être inversé, un réducteur de vitesse de rotation étant monté en aval de chaque moteur électrique et un autre mécanisme de transmission étant monté en aval de chaque réducteur de vitesse de rotation. Le dispositif d'alimentation en énergie (5) présente un raccordement au réseau qui est conçu de manière à pouvoir être connecté au réseau par le dispositif de déconnexion du réseau (9), le dispositif d'alimentation en énergie (5) transformant la tension d'entrée côté réseau en au moins une très basse tension côté sortie. Un transformateur de séparation ou une unité de transmission servent à la séparation galvanique entre le côté entrée relié au réseau et le côté sortie fournissant une très basse tension pour faire fonctionner le mécanisme d'entraînement à moteur électrique pour meubles (1). Le dispositif de déconnexion du réseau (9) présente un dispositif d'alimentation auxiliaire (21), au moins un sectionneur du réseau (20) qui est ouvert à l'état déconnecté et fermé à l'état connecté, et un accumulateur de puissance auxiliaire (27) rechargeable, l'accumulateur de puissance auxiliaire (27) étant découplé du dispositif d'alimentation en énergie (5) et étant relié au dispositif d'alimentation auxiliaire (21) et chargé par le dispositif d'alimentation auxiliaire (21).
EP12705686.9A 2011-02-25 2012-02-24 Mécanisme d'entraînement à moteur électrique pour meubles Not-in-force EP2677899B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202011000443U DE202011000443U1 (de) 2011-02-25 2011-02-25 Elektromotorischer Möbelantrieb
PCT/EP2012/053172 WO2012113912A1 (fr) 2011-02-25 2012-02-24 Mécanisme d'entraînement à moteur électrique pour meubles

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EP2677899A1 true EP2677899A1 (fr) 2014-01-01
EP2677899B1 EP2677899B1 (fr) 2017-06-14

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EP (1) EP2677899B1 (fr)
CN (1) CN203789529U (fr)
DE (1) DE202011000443U1 (fr)
WO (1) WO2012113912A1 (fr)

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DE102012107482A1 (de) * 2012-08-15 2014-02-20 Dewertokin Gmbh Netzgebundene Stromversorgungseinheit
DE202014101452U1 (de) * 2014-03-27 2015-07-01 Dewertokin Gmbh Elektromotorischer Möbelantrieb
DE102014106544B4 (de) * 2014-05-09 2019-06-19 Ferdinand Lusch Gmbh & Co. Kg Sitzmöbel mit motorischem Antrieb
CN113766856B (zh) 2019-04-25 2023-04-14 爱格升公司 具有零空载功率的高度可调节工作站

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DE9116509U1 (fr) 1991-12-02 1992-12-17 Koch, Dietmar, Dipl.-Ing., 5270 Gummersbach, De
IT1272753B (it) * 1993-10-27 1997-06-26 Ciar Srl Sistema di alimentazione particolarmente per attuatori lineari per letti o divani con testate e/o pediera ad angolazione variabile.
DE4400657C1 (de) * 1994-01-12 1995-03-09 Sonetta Gmbh Anordnung für die Netzfreischaltung einer Steuereinrichtung
DK0792533T3 (da) 1994-02-28 1999-12-27 Linak As Strømfrikoblingssystem til strømforbrugene enheder såsom aktuatorer
DE10012050B4 (de) * 2000-03-14 2004-02-26 OKIN Gesellschaft für Antriebstechnik mbH & Co. KG Anordnung zum Verstellen von beweglichen Möbelteilen
DE20113125U1 (de) * 2001-08-14 2002-02-14 Dewert Antriebs Systemtech Netzfreischaltung für Sitz- und Schlafmöbel
DE20122535U1 (de) * 2001-12-21 2006-03-02 Cimosys Ag Elektromotorischer Möbelantrieb
WO2010054656A1 (fr) * 2008-11-13 2010-05-20 Linak A/S Article de mobilier à réglage électrique et notamment table, lit ou fauteuil inclinable
DE102010016406A1 (de) * 2010-04-12 2011-10-13 Vibradorm Gmbh Schaltungsanordnung zum Einschalten einer über Relaiskontakte mit Anschlüssen für ein elektrisches Versorgungsnetz verbindbaren Verbrauchers

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WO2012113912A1 (fr) 2012-08-30
DE202011000443U1 (de) 2012-05-29
CN203789529U (zh) 2014-08-27
EP2677899B1 (fr) 2017-06-14

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