Title:
ELECTRIC-MOTOR FURNITURE DRIVE HAVING A POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/107474
Kind Code:
A3
Abstract:
The invention relates to an electric-motor furniture drive (1), comprising a power supply device (5) and a manual control (7) for moving movable furniture components relative to each other, the electric-motor furniture drive (1) having at least one electric motor, the direction of rotation of which can be reversed, a speed-reducing transmission being connected downstream of each electric motor and an additional transmission being connected downstream of each speed-reducing transmission, and the power supply device (5) having a mains connection, which can be connected to the mains, the power supply device (5) transforming the mains-side input voltage into at least one output-side low voltage and having an isolation transformer or a transmitting unit for galvanic isolation between the mains-connected input side and the output side that provides low voltage for operating the electric-motor furniture drive (1). The power supply device (5) is designed in the manner of a switched-mode power supply and has an intermediate circuit, a control device for controlling the switched-mode power supply, and a secondary unit, and the power supply device (5) has an operating state during the regular operation of the electric-motor furniture drive (1) and an idle state when the electric-motor furniture drive (1) is not actuated. The furniture drive according to the invention is characterized in that the power supply device (5) provides an output-side operating voltage at the output thereof in the operating state thereof and provides an output-side idle voltage at the output thereof instead of the operating voltage in the idle state thereof.
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Inventors:
HILLE ARMIN (DE)
Application Number:
PCT/EP2012/052106
Publication Date:
November 15, 2012
Filing Date:
February 08, 2012
Export Citation:
Assignee:
DEWERT ANTRIEBS SYSTEMTECH (DE)
HILLE ARMIN (DE)
HILLE ARMIN (DE)
International Classes:
H02P29/00; H02H3/12; H02J9/06; H02M1/00
Domestic Patent References:
| WO1988005220A1 | 1988-07-14 |
Foreign References:
| EP0887904A2 | 1998-12-30 | |||
| DE29816022U1 | 1998-10-22 | |||
| DE69510221T2 | 2000-02-10 |
Attorney, Agent or Firm:
DANTZ, Jan et al. (Bielefeld, DE)
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