METHOD AND APPARATUS FOR CONTACTLESS TRANSMISSION OF ELECTRICAL ENERGY BETWEEN A WALL AND A DOOR LEAF/WINDOW SASH FASTENED TO THIS WALL

• US 20150130287A1
• Filed: 09/29/2011
• Published: 05/14/2015
• Est. Priority Date: 05/13/2011
• Status: Abandoned Application

• Current Assignee: Dr. Hahn GmbH & Co. KG
• Original Assignee: Dr. Hahn GmbH & Co. KG
• Inventors: Steudtner, Joachim, Rost, Christian
• Application Number:
  US14/117,038
• Publication Number:
  US 20150130287A1
• Time in Patent Office: Days
• US Class Current: 307/104
• CPC Class Codes: E05D 11/0081 for transmitting energy, e.g. electrical cable routing
• CPC Class Codes: E05D 7/00 Hinges or pivots of special construction used for special suspension arrangements E05D15/00; so as to be self-closing E05F1/06, E05F1/12; with means for raising wings before being turned E05F7/02
• CPC Class Codes: E05F 15/00 Power-operated mechanisms for wings motor-operated accessories in locks for completing closing or initiating opening of a wing E05B17/00
• CPC Class Codes: E05Y 2400/66 Wireless transmission
• CPC Class Codes: E05Y 2800/00 Details, accessories and auxiliary operations not otherwise provided for
• CPC Class Codes: E05Y 2900/132 Doors
• CPC Class Codes: E05Y 2900/148 Windows
• CPC Class Codes: E06B 7/28 Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners edge protecting devices for door leaves E06B3/88; special glazing; emergency glazing; double glazing E06B3/66
• CPC Class Codes: G08B 13/08 by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
• CPC Class Codes: H02J 50/005 Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices

Abstract

A method to transmit electrical energy between a wall and a door leaf fastened to the wall includes providing a primary power coil and a secondary power coil which are in an inductive operative connection. An electrical primary current flowing through the primary power coil is measured to obtain a measured value. The measured value is supplied to a primary power electronics device which stores a transmission characteristic as a function of a power available at the secondary power coil in dependence on a primary power supplied to the primary power coil. A maximum provided power is applied to the primary power coil when an electrical primary current increases. A secondary power voltage induced in the secondary power coil is limited to a preset maximum value. A primary current is measured and, based thereon, a power applied to the primary power coil is reduced until a required power is induced.

Claims

1-5. -5. (canceled)

6. A method for a contactless transmission of electrical energy between a wall and a door leaf/window sash fastened to the wall in an articulated fashion via hinges about a hinge axis, the method comprising:

providing a primary power coil fastened to the wall;

providing a secondary power coil fastened to the door leaf/window sash, the primary power coil and the secondary power coil being configured to be in an inductive operative connection with each other;

measuring an electrical primary current flowing through the primary power coil so as to obtain a measured value;

supplying the measured value to a primary power electronics device which is configured to store a transmission characteristic as a function of a power available at the secondary power coil in dependence on a primary power supplied to the primary power coil;

applying a maximum provided power to the primary power coil when an electrical primary current increases;

limiting a secondary power voltage induced in the secondary power coil to a preset maximum value; and

measuring a primary current and, based on the measured primary current, reducing a power applied to the primary power coil until a required power, which is stored according to the transmission characteristic of the secondary power coil in the primary power electronics device, is induced.

7. The method as recited in claim 6, wherein a change of the power applied to the primary power coil is effected by varying a primary voltage and a pulse width of the primary voltage.

8. The method as recited in claim 7, wherein the pulse width of the primary voltage is a rectangular alternating voltage.

9. An apparatus for a contactless transmission of electrical energy between a wall and a leaf/sash fastened to the wall in an articulated fashion via hinges about a hinge axis, the device comprising:

a primary power coil configured to be fastened to the wall;

a secondary power coil configured to be fastened to the leaf/sash;

a primary power electronics device configured to store a transmission characteristic as a function of a power available at the secondary power coil in dependence on a primary power supplied to the primary power coil;

a current measuring device configured to measure a current that flows in the primary power coil so as to obtain a measured value which is suppliable to the primary power electronics device;

a primary power influencing device configured to influence the primary power applied to the primary power coil; and

a voltage-limiting device configured to limit a secondary voltage value generated by induction in the secondary power coil to a preset maximum voltage value.

10. The device as recited in claim 9, wherein the primary power influencing device comprises at least one of a switching controller and an AC-DC inverter comprising a pulse width modulator.

11. The device as recited in claim 9, further comprising a rectifier, the rectifier being configured to convert a secondary power voltage induced in the secondary coil to direct voltage.