WO2013128035A2 - Circuit d'alimentation de secours, unité d'abaissement d'urgence et dispositif de commande pour un mécanisme de réglage par moteur électrique d'un meuble - Google Patents

Circuit d'alimentation de secours, unité d'abaissement d'urgence et dispositif de commande pour un mécanisme de réglage par moteur électrique d'un meuble Download PDF

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Publication number
WO2013128035A2
WO2013128035A2 PCT/EP2013/054289 EP2013054289W WO2013128035A2 WO 2013128035 A2 WO2013128035 A2 WO 2013128035A2 EP 2013054289 W EP2013054289 W EP 2013054289W WO 2013128035 A2 WO2013128035 A2 WO 2013128035A2
Authority
WO
WIPO (PCT)
Prior art keywords
emergency
power supply
control
voltage
control device
Prior art date
Application number
PCT/EP2013/054289
Other languages
German (de)
English (en)
Other versions
WO2013128035A3 (fr
Inventor
Armin Hille
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
Priority to DE112013001262.6T priority Critical patent/DE112013001262A5/de
Publication of WO2013128035A2 publication Critical patent/WO2013128035A2/fr
Publication of WO2013128035A3 publication Critical patent/WO2013128035A3/fr

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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
    • 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
    • H01H9/02—Bases, casings, or covers
    • H01H9/0214—Hand-held casings
    • H01H9/0235—Hand-held casings specially adapted for remote control, e.g. of audio or video apparatus
    • 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
    • H02J9/062—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 AC powered loads

Definitions

  • the invention relates to an emergency power supply circuit for an emergency lowering unit for an electric motor Versteilantrieb a piece of furniture, comprising a battery as a grid-independent power source, which is connected via an emergency switch for emergency power supply to a control device with a motor control of the control device.
  • the at least one electromotive adjustment drive is electrically connected to a control device and the motor control has switching elements for switching an electric motor of the at least one Versteilantriebs on.
  • the invention further relates to an emergency lowering unit and a control device for a piece of furniture.
  • Versteilantriebe often referred to as electromotive furniture drives are installed in reclining and seating furniture to move an adjustment of furniture parts such as seats, backrests, footrests, etc. relative to a base body of the furniture and relative to each other comfortable.
  • Adjustable seating especially so-called television or relaxation chair, this usually have a mechanically relatively complex furniture fitting, which allows the interaction of a variety of levers and rods complex movement of the various mounted on him upholstery units.
  • a control device For controlling and powering the Versteilantriebe a control device is arranged on or in the furniture, the operating commands of a user receives from an operating unit and converts into control signals for the Versteilantriebe.
  • an emergency lowering function is often provided for safety reasons, with a lowering of the or the adjustable furniture parts is possible by pressing an emergency switch.
  • An existing for realizing the Notabsenkungsfunktion Notabsenkungstechnik can be integrated into the control device or be a separate unit that is connected to the control device.
  • An emergency power supply circuit is preferably provided in the emergency lowering unit in order to prevent the emergency lowering function even in the event of a mains power failure or a malfunction of the mains power supply. to carry out the control device.
  • a battery holder is provided for at least one battery, and the emergency lowering unit is set up to apply a voltage to the at least one battery when the emergency switch is actuated.
  • a control device with Notabsenkungsfunktion is known for example from the document DE 93 16 465 U1.
  • Furniture drives are often designed for a nominal operating voltage of 24 volts (V). Higher voltages are undesirable for safety reasons and lower voltages would lead to unfavorably high motor currents.
  • the relays often used to control the electric motors in the engine control as switching elements are also designed accordingly for a control voltage of 24 V. Experience has shown that relays of this type are already starting from voltages of approximately 12 V to 18 V. This makes it possible to provide two series-connected 9 V block batteries for emergency power supply in the emergency lowering unit.
  • the disadvantage is that two battery holder must be provided, which entails an increased material and installation costs. If one of the two batteries fails, both must be replaced, which the user finds disadvantageous.
  • the object is achieved by the one emergency power supply circuit for an emergency lowering unit having the features of claim 1.
  • the object is further achieved by an emergency lowering unit and a control device. Preferred developments are the subject of the dependent claims.
  • An emergency power supply circuit comprises a DC-DC converter for increasing an input voltage to an output voltage, wherein the input voltage corresponds to the output voltage of the battery and wherein the output voltage is above a critical control voltage of the switching elements of the engine control unit of the control unit.
  • the DC-DC converter By the DC-DC converter is achieved that a battery with a lower voltage can be used to control the switching elements of the engine control can. It can be used a standard battery, the voltage can be well below the nominal control voltage of the switching elements.
  • the control voltage corresponds to the tightening voltage of the relay, so the voltage at which the relays are just safely operated.
  • the nominal control voltage of the motor control relays is 24 V and the battery is a 9 V block battery.
  • the nominal control voltage essentially corresponds to the terminal voltage of a power supply unit that usually supplies the motor control (network-connected). ne power supply).
  • the control voltage can be variable with respect to the operated load and can be load-dependent up to 30 V at a nominal control voltage of 24 V, for example.
  • an output of the DC-DC converter is connected via a diode to the motor control.
  • a diode is also arranged between a connection of the power supply and the motor control in order to prevent current from the emergency power supply circuit from flowing into the power supply.
  • the DC-DC converter is a boost converter.
  • a freewheeling diode of the boost converter preferably acts as a diode between the DC-DC converter and the motor control.
  • An emergency lowering unit for an electromotive adjustment drive of a piece of furniture has a mains-independent voltage source and an emergency switch. It is characterized in that it has an emergency power supply circuit described above.
  • a control device for at least one adjustable drive to be arranged in a furniture, which is set up to control the at least one adjusting drive by means of a motor control, is characterized by such an integrated emergency lowering unit. This results in the advantages mentioned in connection with the emergency power supply circuit.
  • Fig. 1 is a schematic perspective view of an exemplary furniture arrangement
  • Fig. 3 is a block diagram of a system of control device, operating unit and Versteilantrieben;
  • FIG. 4 is a schematic circuit diagram of a boost converter of an emergency lowering unit.
  • Fig. 1 shows a furniture assembly with a furniture.
  • furniture 1 here is exemplified a bed.
  • the furniture 1 has at least one support element 3 for receiving objects, a padding, a mattress M and / or a person.
  • the support element 3 is e.g. as a slatted frame, as a flat support surface or the like and formed on a base member 2, here a frame with feet, for coupling the furniture 1 at a place of installation, e.g. Floor, attached.
  • the support element 3 has a back part 4 and a leg part 5, which are arranged so as to be movable relative to a further support element or relative to the base element 2.
  • This movable arrangement is realized here by means of a so-called motion fitting 6.
  • the movement is designed to be displaceable and / or pivotable.
  • the movably mounted back part 4 and the leg part 5 are each coupled to an electromotive adjustment drive 7, 8.
  • the back part 4 is coupled to the electromotive adjustment drive 7.
  • For movement or adjustment of the leg part 5 of the electromotive adjustment drive 8 is provided.
  • the electromotive adjustment drive 7, 8 are designed here as linear drives.
  • the linear drives have one or a number of electric motors, wherein each motor is followed by a Drehierereduziergetriebe with at least one gear stage.
  • the Drehierereduziergetriebe may be followed by another gear, for example in the form of a threaded spindle gear, which generates from the rotational movement of the motor, a linear movement of the output member.
  • the last gear member or an associated further member forms an output member.
  • the output member of the respective electromotive Versteilantriebs communicates with the respective furniture component (back part 4, leg part 5) or alternatively with a component connected to the base frame 2 component, so that during operation of the electric motor of the respective adjustment drive 7, 8, the movable furniture components 4, 5 relative to each other or be adjusted relative to the base frame 2.
  • the electromotive Versteilantriebe 7, 8 are connected to a control device 9.
  • This compound can e.g. be designed as a pluggable cable connection, which is not shown here.
  • the control device 9 has an electrical supply unit which stores the electrical energy, e.g. from the network, for the electromotive Versteilantriebe 7, 8 provides.
  • the control device 9 is connectable in this example via a not shown power cord with a power plug with a power connector.
  • the power plug passes via the power cord, the input-side mains voltage to the electrical supply unit (power supply) of the control device 9, which outputs a low voltage in the form of a DC voltage on the secondary side and forwards them to a motor control.
  • control device 9 is preceded by a network-dependent power supply not shown in detail with mains input and secondary-side low-voltage output, which supplies the low voltage in the form of a DC voltage via a line.
  • an emergency lowering unit 100 Connected to the control device 9 is an emergency lowering unit 100, which is explained in more detail in connection with FIG.
  • the furniture 1 is also an operating unit 10, 10 'assigned.
  • FIGS. 2 and 2a show schematic perspective views of an operating unit 10, 10 'in two different embodiments.
  • the operating unit 10, 10 ' has operating elements 12, 13, by means of which the electromechanical final drives 7, 8 can be controlled via the control device 9.
  • the operating unit 10 is provided with a transmitting device or transmitting / receiving device for wireless transmission.
  • the wireless Transmission may be a radio transmission link, optical transmission link (eg infrared) or / and an ultrasound transmission link, wherein the control device 9 is equipped with a respective corresponding receiving device.
  • the operating unit 10 is designed with a control line 18 in a wired form, which shows Fig. 2a.
  • the service line 18 is connectable to the control device 9, e.g. pluggable.
  • the operating unit 10, 10 ' is provided with operating elements 12, 13, which are provided for operating a respective electromotive adjusting drive 7, 8.
  • the operating elements 12, 13 are e.g. executed as a button.
  • control units 10, 10 ' are shown for six Versteilantriebe.
  • additional controls 16, 17 are provided, can be operated via the additional functions. Such additional functions are explained in more detail in connection with FIGS. 3 to 7.
  • the additional controls 15, 16, 17 can be designed as a button and / or switch.
  • the operating unit 10, 10 is provided with a signaling element 14, e.g. a light-emitting diode or a display unit equipped.
  • the signaling element 14 serves e.g. for function display or feedback, error display etc.
  • a further auxiliary operating element 15, which may also consist of a plurality of operating elements and / or a combination operating element, serves for a so-called memory function of the electromotive adjusting drives 7, 8.
  • the control device has switching elements which convert the control signals of the transmission path into switching signals for switching the respective adjusting device. drive 7, 8 convert.
  • the switching elements may be, for example, switching contacts of relays or semiconductor switches.
  • the manually operable controls 12, 13 of the control unit 10 generate control signals, which are converted by the receiver of the control device 9 in control currents for the switching elements.
  • the operating elements 12, 13 switch the control current of the switching elements.
  • the switching paths of the switching elements for example the contacts of the relays, switch the high motor current of the respective electromotive adjusting drive 7, 8.
  • Fig. 3 shows in the form of a schematic block diagram, the control device 9 with associated components in more detail.
  • the arrangement shown in FIG. 3 can be provided, for example, in the furniture 1 of FIG. 1.
  • the control device 9 has a power supply unit 90 for the electrical power supply of the control device 9 and associated with it Versteilantriebe 7, 8.
  • the power supply for example, a switching power supply is connected to a power cable 91 to a power grid, a Netzkeschalt- device can be provided not shown here.
  • the control device 9 may have a DC voltage connection for connection to an external power supply.
  • a DC output of the power supply 90 provides a nominal 24V to power the controller and components associated therewith.
  • the DC output is connected via a diode 92 to a motor controller 93.
  • the function of the diode 92 will be explained below.
  • a signal of a limit switch arranged in the respective adjustment drive 7, 8 can be transmitted to the control device 9 via the adjustment drive connections.
  • signal lines can be provided, via which a position of the output member of the Versteilantriebs 7, 8 is transmitted to the control device 9 in order to take into account this position signal in the control of the Versteilantriebe 7, 8.
  • a control unit 10 ' according to FIG. 2a wired by way of example here is connected to the motor control 93.
  • a wirelessly connected operating unit 10 can also be used for the control.
  • a corresponding interface is arranged in the control device 9, via which the signal transmission provided between the operating unit 10 and the control device 9 takes place by radio, optical (infrared) or ultrasound.
  • the adjusting drives 7, 8 are actuated by the motor control 93.
  • 9 relays are present as switching elements in the motor control 93 of the control device, which switch a motor current for the electric motors in the Versteilantrieben 7, 8.
  • an emergency lowering unit 100 is integrated in the control device 9.
  • the emergency lowering unit 100 could also be arranged separately from the control device 9 and connected to the control device 9 via a cable, as shown in the example of FIG. 1.
  • the emergency lowering unit 100 has a possibly rechargeable battery 101, for example a 9 V block battery.
  • the battery 101 is connected via an emergency switch 102, which is externally operable on a housing of the control device 9 (or the emergency lowering unit 100), with a DC-DC converter 103, also called DC (direct current) / DC converter.
  • the DC-DC converter 103 is designed as a step-up converter, which converts a supplied at the input of the battery 101 input voltage ⁇ ⁇ a higher output voltage UA.
  • the output voltage UA is then supplied via a diode 104 of the motor controller 93.
  • In the engine controller 93 acts the Output voltage UA to those of the relay whose operation causes a lowering of the Versteilantriebe 7, 8.
  • an output voltage UA of typically 12 volts to 18 volts is provided, which is sufficient to bring the respective relay to tighten.
  • the relay picks up, the load circuit to the motor is closed, whereby the adjusting drives 7, 8 are lowered. Even if the output voltage UA drops as a result of the then high current load, the adjusting drive is moved further since the voltage required to hold a relay is usually much smaller than that required for the tightening.
  • both the relays of the control unit can be switched by means of a standard battery, for example the said 9 volt block battery, and the motors of the Versteilantriebe can be operated.
  • FIG. 4 shows a possible structure of a suitable boost converter of the emergency lowering unit in a schematic circuit diagram.
  • the boost converter can also be used as a boost converter or an inductive resonant circuit as a DC-DC converter.
  • An inductance (coil) 105, L is connected in series with a freewheeling diode 106, D, behind which a charging capacitor 107, C sums up the output voltage.
  • the coil is periodically switched to ground by a switch 108, S at a frequency in the kilohertz range.
  • S is usually a semiconductor switch, for example, a GTO (gate turn off) - thyristor or a transistor, for example, a MOSFET (metal oxide semiconductor field effect transistor) used.
  • GTO gate turn off
  • MOSFET metal oxide semiconductor field effect transistor
  • the coil 105 When the switch 108, S is opened, the coil 105 "tries” to maintain the current flow, and the voltage at its secondary end rises very rapidly until it exceeds the voltage UA applied to the charging capacitor 107, C and opens the freewheeling diode 106, D. The current continues to flow unchanged in the first moment and continues to charge the charging capacitor 107, C. The magnetic field is thereby reduced and releases its energy by transferring the current via the freewheeling diode 106, D into the charging capacitor 107, C and to the load. the relay of the motor control 93 and the Versteilantrieben 93 - drives.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Control Of Direct Current Motors (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

L'invention concerne un circuit d'alimentation de secours pour une unité d'abaissement d'urgence (100) d'un mécanisme de réglage (7, 8) par moteur électrique d'un meuble (1), ledit au moins un mécanisme de réglage (7, 8) par moteur électrique étant électriquement relié à un dispositif de commande (9), ledit dispositif de commande (9) présentant une commande motorisée (93) dotée d'éléments de commutation permettant de commuter le moteur électrique dudit au moins un mécanisme de réglage (7, 8), et l'unité d'abaissement d'urgence (100) étant conçue pour pouvoir être raccordée de manière électro-conductrice à l'unité de commande ou intégrée à cette unité, et une batterie (101) présentant une source de tension indépendante du réseau, ladite source pouvant être reliée par un interrupteur d'urgence (102) au dispositif de commande (9) aux fins d'alimentation de secours de la commande motorisée (93). Le circuit d'alimentation de secours est caractérisé en ce qu'il présente un convertisseur continu-continu (103) permettant d'augmenter une tension d'entrée (UE) pour l'amener à une tension de sortie (UA), la tension d'entrée (UE) correspondant à la tension de sortie de la batterie (101), et la tension de sortie (UA) étant supérieure à une tension de commande critique des éléments de commutation de la commande motorisée (93) de l'unité de commande (9).
PCT/EP2013/054289 2012-03-02 2013-03-04 Circuit d'alimentation de secours, unité d'abaissement d'urgence et dispositif de commande pour un mécanisme de réglage par moteur électrique d'un meuble WO2013128035A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112013001262.6T DE112013001262A5 (de) 2012-03-02 2013-03-04 Notstromversorgungsschaltung, Notabsenkungseinheit und Steuereinrichtung für einen elektromotorischen Verstellantrieb eines Möbels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012101797.2 2012-03-02
DE102012101797 2012-03-02

Publications (2)

Publication Number Publication Date
WO2013128035A2 true WO2013128035A2 (fr) 2013-09-06
WO2013128035A3 WO2013128035A3 (fr) 2013-11-21

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PCT/EP2013/054289 WO2013128035A2 (fr) 2012-03-02 2013-03-04 Circuit d'alimentation de secours, unité d'abaissement d'urgence et dispositif de commande pour un mécanisme de réglage par moteur électrique d'un meuble

Country Status (2)

Country Link
DE (1) DE112013001262A5 (fr)
WO (1) WO2013128035A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019122382A1 (fr) * 2017-12-22 2019-06-27 Dewertokin Gmbh Dispositif d'entraînement pour meuble à moteur électrique, meuble et procédé pour détecter une position d'un dispositif d'entraînement pour meuble à moteur électrique

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9316465U1 (de) 1993-10-28 1994-01-13 Dewert Antriebs Systemtech Elektromotorische Verstelleinrichtung für ein Möbel

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Publication number Priority date Publication date Assignee Title
DE2411344B2 (de) * 1974-03-09 1976-09-30 Palm, Hubert, Dr.med., 7750 Konstanz Automatisches aus- und einschaltgeraet fuer ein elektrisches wechselstromnetz, insb. hausnetz
DE4400657C1 (de) * 1994-01-12 1995-03-09 Sonetta Gmbh Anordnung für die Netzfreischaltung einer Steuereinrichtung
US5892389A (en) * 1997-06-03 1999-04-06 Motorola, Inc. Method and circuit for current limiting of DC-DC regulators
DE20110841U1 (de) * 2001-06-30 2001-09-20 Dewert Antriebs Systemtech Elektromotorischer Stelltrieb
DE202009005020U1 (de) * 2009-07-14 2010-12-16 Dewert Antriebs- Und Systemtechnik Gmbh Erstfehlersicherer elektromotorischer Möbelantrieb

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9316465U1 (de) 1993-10-28 1994-01-13 Dewert Antriebs Systemtech Elektromotorische Verstelleinrichtung für ein Möbel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019122382A1 (fr) * 2017-12-22 2019-06-27 Dewertokin Gmbh Dispositif d'entraînement pour meuble à moteur électrique, meuble et procédé pour détecter une position d'un dispositif d'entraînement pour meuble à moteur électrique
US11374516B2 (en) 2017-12-22 2022-06-28 Dewertokin Technology Group Co. Ltd Electromotive furniture drive, furniture, and method for detecting a position of an electromotive furniture drive

Also Published As

Publication number Publication date
DE112013001262A5 (de) 2014-12-11
WO2013128035A3 (fr) 2013-11-21

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