WO2001016995A1 - Lampe electroluminescente a induction - Google Patents

Lampe electroluminescente a induction Download PDF

Info

Publication number
WO2001016995A1
WO2001016995A1 PCT/US2000/022798 US0022798W WO0116995A1 WO 2001016995 A1 WO2001016995 A1 WO 2001016995A1 US 0022798 W US0022798 W US 0022798W WO 0116995 A1 WO0116995 A1 WO 0116995A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil
lamp
lamps
power supply
electroluminescent
Prior art date
Application number
PCT/US2000/022798
Other languages
English (en)
Inventor
Bryan D. Haynes
Original Assignee
Illumagraphics, Llc
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 Illumagraphics, Llc filed Critical Illumagraphics, Llc
Priority to AU67886/00A priority Critical patent/AU6788600A/en
Publication of WO2001016995A1 publication Critical patent/WO2001016995A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B44/00—Circuit arrangements for operating electroluminescent light sources
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2804—Printed windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2847—Sheets; Strips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Definitions

  • the present invention relates to power supplies for electroluminescent lamps.
  • Electroluminescent (EL) lamps are light sources that contain a special phosphor or combination of phosphors that luminesce when they are subjected to electric fields. Typical EL lamps are powered by an alternating current or pulsed DC power supply. The lamps' brightness and color directly relate to the voltage and frequency of the lamps' power source.
  • One object of the present invention is to create an EL lamp that does not have to be physically connected to its power supply.
  • the absence of physical contact in the present invention reduces corrosion and breakage associated with connecting conventional EL lamps to their power supply.
  • a second object of the present invention is to allow multiple EL lamps to be easily and quickly interchanged with a single power supply.
  • the invention comprises an electroluminescent (EL) lamp powered by a coil forming a secondary winding of a transformer.
  • EL electroluminescent
  • Fig. 1 is a high level block diagram of an electrical circuit used in the present invention
  • Fig. 2a shows a top view of an electroluminescent drink coaster according to one embodiment of the present invention
  • Fig. 2b shows a side view of an electroluminescent drink coaster according to the first embodiment of the present invention
  • Fig. 2c shows an interior view of an electroluminescent drink coaster according to the first embodiment of the present invention
  • Fig 3 is a diagram illustrating a practical application of the present invention.
  • Fig. 4 is a side view of another embodiment of the coil element according to an embodiment of the present invention.
  • Fig 5 illustrates another embodiment of the coil element according to an embodiment of the present invention
  • Fig. 6 shows an end use application example: Inductive Poker Chip
  • Fig. 7 shows a method for printing inductive coil — shape variation
  • Fig 8 illustrates a Method for Sequencing Inductive Coils for Powering an
  • Fig. 9 is a diagram of the sequencing inductive coils
  • Fig. 10 is a diagram of a method for producing additional wraps/windings using printed coil assembly
  • Fig. 11 shows an end use example — an inductive tent display for a room
  • Fig. 12 shows detail of the tent display
  • Fig 13 illustrates another end use application example — an inductive credit card
  • Fig 14 shows the related end use application example — a restaurant credit card holder
  • Fig. 15 shows an end use application example — an inductive coil can.
  • an electroluminescent lamp obtains electrical power from a secondary, self-contained wire or other coil.
  • the self-contained coil is energized through mutual induction with a physically separated primary coil.
  • the secondary coil behaves like the secondary windings of a transformer.
  • the primary coil may be mounted into or onto a table, tablecloth, place mat or some other item.
  • AC alternating current
  • DC pulsed direct current
  • Fig. 1 is a block diagram of the electrical circuit used in the present invention.
  • AC (or pulsed DC) power source 20 is coupled with primary winding, or coil, 21.
  • Primary winding 21 and coil 22 together function as a transformer.
  • Coil 22 is connected in a series with an EL lamp 23.
  • Power supply 20 energizes primary winding 21 that in turn creates a current in coil 22, and thus EL lamp 23, which illuminates EL lamp 23.
  • the color and intensity of the light emitted from the EL lamp 23 depends on the frequency and magnitude of the voltage driving the EL lamp 23.
  • the frequency of the driving voltage depends on the frequency of power source 20.
  • the magnitude of the driving voltage depends on the voltage of the driving source or the size of the primary winding relative to the coil 22.
  • Figs. 2a-2c show a top, side, and interior view, respectively, of an electroluminescent drinking coaster 30 according to one embodiment of the present invention.
  • Fig. 2a the top view, shows an EL lamp emitting light spelling "ADD"
  • Fig. 2b the front view of the coaster 30, shows a first layer 31 and second layer 32.
  • First layer 31 contains all the elements of the EL lamp necessary for luminescence, except the power supply.
  • Second layer 32 contains a coil 38 for providing electrical energy to first layer 31.
  • Coil 38 has terminal leads 36 and 37 for coupling the power induced in coil 38 to the first layer 31.
  • Fig. 2c is an interior view of coaster 30 taken through coil layer 32, showing a spiraling coil with leads 36 and 37.
  • coil 32 is a printed conductor (e.g., metal filled ink), but it may also be an adhesive bonded foil conductor, a wire conductor, etched circuit, or some other electrically conducting material that serves as a coil.
  • Coil 32 is also preferably cylindrical, but may be serpentine, helical, zigzag, or any other shape appropriate for obtaining mutual inductance with the primary winding.
  • Fig. 3 is a diagram illustrating a practical application of the present invention in which a physical barrier, such as a table, is placed between the power supply and the EL lamps.
  • a physical barrier such as a table
  • One or more coasters 30 constructed according to the present invention are placed on the table 41.
  • Power supply 43 is attached to the underside of the table and contains the primary windings of a transformer.
  • the coasters 30 are powered through mutual inductance with power supply 43, preferably connected to a wall outlet through cord 44.
  • One may freely move or replace the coasters 30 without concern for the power supply to the coasters.
  • Fig. 4 is a side view of an embodiment of a coil element according to the present invention.
  • Coil element 50 contains multiple layers of coils 51, 52, and 53, each similar to the coil element shown in Fig. 3.
  • the coils 51, 52, and 53 are formed in layers in insulating material 55 and are coupled with each other at their ends to form one larger coil.
  • Terminal leads 56 and 57 are coupled to an EL lamp (not shown).
  • Fig. 5 illustrates a coil element 60 formed with two insulating wires 61 and 62 intertwined and shunted together at point 63.
  • the terminus 64 of wire 62 and the terminus 65 of wire 61 are connected to an EL lamp (not shown).
  • Fig. 6 shows an EL inductive poker chip.
  • a printed or wound secondary coil 9 is attached to a bottom substrate 10.
  • An insulator 8 is positioned between the secondary coil 9 and a rear electrode 7.
  • a dielectric layer 6 and an electroluminescent phosphor layer 5 are placed between the rear electrode 7 and the front electrode 4 which is made of Indium Tin Oxide on PET, so that it is transparent.
  • a silver bus bar 3 is printed onto the front electrode 4.
  • a graphic overlay assembly 2, including transparent or translucent ink 1 makes up the top layer of the poker chip. When the chip 11 is brought near the printed or wound primary coil 13 the phosphor in the chip is induced to luminesce.
  • the primary coil 13 can be placed beneath a poker table 12.
  • Fig. 7 shows a method for printing the inductive coil.
  • Fig 8 illustrates a method for sequencing inductive coils for powering an inductive electroluminescent assembly.
  • the electroluminescent lamps 1 are attached to individual secondary coils 3 by way of printed silver trace 2.
  • the primary coils 4 are electrically connected to a microprocessor or micro-controller 5 for sequencing which is in turn electrically connected to a power supply 6.
  • Fig. 9 is a diagram of the sequencing inductive coils.
  • the electroluminescent lamps 1 are electrically connected to the secondary coils 2.
  • the primary coils 3 are connected to switches (for example, TRIAX or Opto) 4 and then to a microprocessor switching assembly 5.
  • the switches 4 are electrically connected to an inverted power supply 7.
  • a battery 9 with a power switch 8 is electrically attached to the inverted power supply 7, the microprocessor switching assembly 5, and the switches 4. If necessary an in-line capacitor 6 can be included in the circuit.
  • Fig. 10 is a diagram of a method for producing additional wraps/windings using printed coil assembly.
  • Pole 1 labeled 1 on a coil is connected through connection 2 through dielectric layer 3 to another coil which in turn is connected by connection 4 to another coil. This coil is attached by connection 5 through dielectric layer 6 to yet another coil.
  • Pole 2 is labeled 7.
  • a substrate 8 is attached to the coil assembly.
  • Fig. 11 shows detail of an end use example — an inductive tent display for a room.
  • a cardboard tent-shaped substrate 1 is printed with color 8.
  • a window in the substrate contains an electroluminescent lamp assembly.
  • the bottom layer of the electroluminescent assembly is a layer of silver 2. This is the bottom conductor.
  • a layer of white dielectric 3 is positioned between the silver layer 2 and the phosphor layer 4.
  • a transparent or translucent printed top conductor 6 lies over the phosphor layer 4.
  • a silver bus bar 5 is printed onto the top conductor 6.
  • Transparent or translucent ink 7 is printed onto the top substrate.
  • Silver traces 9,10 run from the electroluminescent lamp assembly to a secondary printed or wire wound coil 11.
  • Primary coil 12 is enclosed in PET 13,14 or another substrate layer with printed color 8 on the top.
  • the bottom layer of PET 14 is attached to mounting adhesive 15 and an adhesive layer 16.
  • the primary coil 12 is electrically connected to an inverter 19 through two AC power lines 17,18.
  • the primary coil and power supply can be mounted to a table or other fixture in a room. When the tent shaped display is brought close to the primary coil the phosphor in the lamp is induced to luminesce.
  • Fig. 12 shows the inductive tent display for a room.
  • the cardboard substrate 1 is shown to be tent-shaped.
  • Electroluminescent lamp 20 is lit when secondary coil 11 is brought near to primary coil 12, which is enclosed in layers of PET 13,14.
  • a power cord 21 connects the primary coil to power inverter 19, which is connected to a power cord 22 and plug 23.
  • Fig 13 illustrates another end use application example — an inductive credit card.
  • the secondary or receiving coil 8 is enclosed in the card 7. It is connected to an electroluminescent lamp assembly which is also enclosed in the credit card.
  • the electroluminescent lamp assembly comprises a rear electrode 3, a phosphor layer 2 and a top electrode 1.
  • the primary coil 4 is enclosed in a capacitor assembly 5 along with an inverter 6. When the credit card 7, is brought near to the capacitor assembly 5, the phosphor in the card is induced to luminesce.
  • Fig 14 shows a related end use application example — a restaurant credit card holder.
  • Fig. 15 shows a further end use application example — an inductive coil can.
  • An electroluminescent lamp assembly 1 is included in the label of a can.
  • a secondary or receiving coil 2 is electrically connected to the electroluminescent lamp assembly 1.
  • a printed insulator 3 means the electrical connection can connect each end of the coil to the lamp independently to create a circuit.
  • the label of the can assembly 4 will light up when brought into close proximity with a primary coil.
  • an iron or other metal based core may be placed between either one of the coils to increase the inductive coupling.
  • the coil may be substituted for the lamp's rear electrode, thus simplifying construction and minimizing parts.
  • the present invention may be used with easily changeable luminescent panels shaped as letters for billboards and marquees.
  • the invention may be used with a board game such that the playing pieces or other parts are illuminated when placed on particular parts of the board.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

L'invention concerne une lampe électroluminescente (23) obtenant une alimentation électrique d'un fil ou d'une autre bobine (22) autonomes. La bobine autonome est alimentée par induction mutuelle avec une bobine primaire séparée physiquement (21). La bobine secondaire (22) se comporte comme les bobinages secondaire d'un transformateur. La bobine primaire (21) peut être montée sur une table, une nappe, un napperon ou d'autres articles analogues. Lorsque la lampe électroluminescente (23) (à bobine secondaire intégrale (22)) est placée à proximité de la bobine primaire (21), qui est alimentée en courant alternatif ou en courant continu pulsé, l'énergie électrique est transférée de la bobine primaire (21) à la bobine secondaire (22). Ainsi, ce système imite un transformateur à entrefer muni d'une lampe électroluminescente (23) servant de charge sur la sortie secondaire. Le système alimente une lampe électroluminescente (23) sans élément visible de liaison électrique.
PCT/US2000/022798 1999-08-27 2000-08-18 Lampe electroluminescente a induction WO2001016995A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU67886/00A AU6788600A (en) 1999-08-27 2000-08-18 Induction electroluminescent lamp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15104699P 1999-08-27 1999-08-27
US60/151,046 1999-08-27

Publications (1)

Publication Number Publication Date
WO2001016995A1 true WO2001016995A1 (fr) 2001-03-08

Family

ID=22537104

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/022798 WO2001016995A1 (fr) 1999-08-27 2000-08-18 Lampe electroluminescente a induction

Country Status (2)

Country Link
AU (1) AU6788600A (fr)
WO (1) WO2001016995A1 (fr)

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002080093A2 (fr) * 2001-03-28 2002-10-10 Inksure Rf Inc. Etiquette radiofrequence sans puce
GB2399228A (en) * 2002-05-13 2004-09-08 Splashpower Ltd A distributed primary inductive power transfer area with uniform coupling to one or more secondary power receiving devices
WO2003092329A3 (fr) * 2002-04-26 2004-09-16 Access Business Group Int Llc Ensemble lampe alimente par voie inductive
WO2004086338A2 (fr) * 2003-03-21 2004-10-07 Intellimats, Llc Dispositif d'affichage electronique flexible et systeme de communication sans fil
US6906495B2 (en) 2002-05-13 2005-06-14 Splashpower Limited Contact-less power transfer
WO2008012702A1 (fr) 2006-07-21 2008-01-31 Philips Intellectual Property & Standards Gmbh Système d'éclairage
US20090058189A1 (en) * 2007-08-13 2009-03-05 Nigelpower, Llc Long range low frequency resonator and materials
US7525283B2 (en) 2002-05-13 2009-04-28 Access Business Group International Llc Contact-less power transfer
US7622891B2 (en) 2002-10-28 2009-11-24 Access Business Group International Llc Contact-less power transfer
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US8182303B2 (en) 2004-12-27 2012-05-22 Nthdegree Technologies Worldwide Inc Method of fabricating static and addressable emissive displays
US8384630B2 (en) 2007-05-31 2013-02-26 Nthdegree Technologies Worldwide Inc Light emitting, photovoltaic or other electronic apparatus and system
US8415879B2 (en) 2007-05-31 2013-04-09 Nthdegree Technologies Worldwide Inc Diode for a printable composition
US8413359B2 (en) 2008-05-13 2013-04-09 Nthdegree Technologies Worldwide Inc Illuminating display systems
EP2660834A3 (fr) * 2012-05-04 2014-02-12 DET International Holding Limited Structures magnétiques pour grand entrefer
US8674593B2 (en) 2007-05-31 2014-03-18 Nthdegree Technologies Worldwide Inc Diode for a printable composition
US8739441B2 (en) 2008-05-13 2014-06-03 Nthdegree Technologies Worldwide Inc Apparatuses for providing power for illumination of a display object
US8766487B2 (en) 2007-12-21 2014-07-01 Access Business Group International Llc Inductive power transfer
US8809126B2 (en) 2007-05-31 2014-08-19 Nthdegree Technologies Worldwide Inc Printable composition of a liquid or gel suspension of diodes
US8846457B2 (en) 2007-05-31 2014-09-30 Nthdegree Technologies Worldwide Inc Printable composition of a liquid or gel suspension of diodes
US8852467B2 (en) 2007-05-31 2014-10-07 Nthdegree Technologies Worldwide Inc Method of manufacturing a printable composition of a liquid or gel suspension of diodes
US8877101B2 (en) 2007-05-31 2014-11-04 Nthdegree Technologies Worldwide Inc Method of manufacturing a light emitting, power generating or other electronic apparatus
US8889216B2 (en) 2007-05-31 2014-11-18 Nthdegree Technologies Worldwide Inc Method of manufacturing addressable and static electronic displays
US9018833B2 (en) 2007-05-31 2015-04-28 Nthdegree Technologies Worldwide Inc Apparatus with light emitting or absorbing diodes
US9196417B2 (en) 2012-05-04 2015-11-24 Det International Holding Limited Magnetic configuration for high efficiency power processing
US9231411B2 (en) 2009-04-08 2016-01-05 Access Business Group International Llc Selectable coil array
US9343593B2 (en) 2007-05-31 2016-05-17 Nthdegree Technologies Worldwide Inc Printable composition of a liquid or gel suspension of diodes
US9419179B2 (en) 2007-05-31 2016-08-16 Nthdegree Technologies Worldwide Inc Diode for a printable composition
US9425357B2 (en) 2007-05-31 2016-08-23 Nthdegree Technologies Worldwide Inc. Diode for a printable composition
US9494631B2 (en) 2012-05-04 2016-11-15 Det International Holding Limited Intelligent current analysis for resonant converters
US9531299B2 (en) 2011-12-28 2016-12-27 Det International Holding Limited Resonant single stage DC-AC converter with capacitors forming a half-bridge
US9530556B2 (en) 2012-05-04 2016-12-27 Det International Holding Limited Multiple resonant cells for wireless power mats
US9534772B2 (en) 2007-05-31 2017-01-03 Nthdegree Technologies Worldwide Inc Apparatus with light emitting diodes
US10146281B2 (en) 2010-08-31 2018-12-04 Delta Electronics Thailand Public Company Limited Method and apparatus for load identification
US11756726B2 (en) 2012-05-04 2023-09-12 Delta Electronics (Thailand) Pcl. Magnetic structures for large air gap

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US5845987A (en) * 1996-10-08 1998-12-08 Painter; John M. Illuminated accessory and device
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Cited By (74)

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WO2002080093A2 (fr) * 2001-03-28 2002-10-10 Inksure Rf Inc. Etiquette radiofrequence sans puce
US6819244B2 (en) 2001-03-28 2004-11-16 Inksure Rf, Inc. Chipless RF tags
WO2002080093A3 (fr) * 2001-03-28 2003-02-20 Inksure Rf Inc Etiquette radiofrequence sans puce
WO2003092329A3 (fr) * 2002-04-26 2004-09-16 Access Business Group Int Llc Ensemble lampe alimente par voie inductive
US7952324B2 (en) 2002-05-13 2011-05-31 Access Business Group International Llc Contact-less power transfer
US7863861B2 (en) 2002-05-13 2011-01-04 Access Business Group International Llc Contact-less power transfer
GB2399228B (en) * 2002-05-13 2006-01-04 Splashpower Ltd Inductive power transfer system having uniform coupling
US7525283B2 (en) 2002-05-13 2009-04-28 Access Business Group International Llc Contact-less power transfer
US6906495B2 (en) 2002-05-13 2005-06-14 Splashpower Limited Contact-less power transfer
GB2399228A (en) * 2002-05-13 2004-09-08 Splashpower Ltd A distributed primary inductive power transfer area with uniform coupling to one or more secondary power receiving devices
US7622891B2 (en) 2002-10-28 2009-11-24 Access Business Group International Llc Contact-less power transfer
US8354821B2 (en) 2002-10-28 2013-01-15 Access Business Group International Llc Contact-less power transfer
WO2004086338A2 (fr) * 2003-03-21 2004-10-07 Intellimats, Llc Dispositif d'affichage electronique flexible et systeme de communication sans fil
WO2004086338A3 (fr) * 2003-03-21 2005-03-03 Intellimats Llc Dispositif d'affichage electronique flexible et systeme de communication sans fil
US8182303B2 (en) 2004-12-27 2012-05-22 Nthdegree Technologies Worldwide Inc Method of fabricating static and addressable emissive displays
US8183772B2 (en) 2004-12-27 2012-05-22 Nthdegree Technologies Worldwide Inc Static and addressable emissive displays
CN101490772B (zh) * 2006-07-21 2012-04-18 皇家飞利浦电子股份有限公司 照明系统
TWI402458B (zh) * 2006-07-21 2013-07-21 Koninkl Philips Electronics Nv 發光系統
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WO2008012702A1 (fr) 2006-07-21 2008-01-31 Philips Intellectual Property & Standards Gmbh Système d'éclairage
US8846457B2 (en) 2007-05-31 2014-09-30 Nthdegree Technologies Worldwide Inc Printable composition of a liquid or gel suspension of diodes
US9200758B2 (en) 2007-05-31 2015-12-01 Nthdegree Technologies Worldwide Inc LED lighting apparatus formed by a printable composition of a liquid or gel suspension of diodes and methods of using same
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