EP1811228A1 - LED-Beleuchtungsvorrichtung - Google Patents

LED-Beleuchtungsvorrichtung Download PDF

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Publication number
EP1811228A1
EP1811228A1 EP06118833A EP06118833A EP1811228A1 EP 1811228 A1 EP1811228 A1 EP 1811228A1 EP 06118833 A EP06118833 A EP 06118833A EP 06118833 A EP06118833 A EP 06118833A EP 1811228 A1 EP1811228 A1 EP 1811228A1
Authority
EP
European Patent Office
Prior art keywords
leds
foregoing
battery
switch
casing
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.)
Withdrawn
Application number
EP06118833A
Other languages
English (en)
French (fr)
Inventor
Maria Rita Ambrosetti
Tito Cattaneo
Andrea Pellegata
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.)
Manufatti Plastici Traversa Ezio SNC
Original Assignee
Manufatti Plastici Traversa Ezio SNC
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 Manufatti Plastici Traversa Ezio SNC filed Critical Manufatti Plastici Traversa Ezio SNC
Publication of EP1811228A1 publication Critical patent/EP1811228A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004—Personal or domestic articles
    • F21V33/0012—Furniture
    • F21V33/0016—Furnishing for windows and doors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a LED lighting device for compartments having a movable closing member, as stated in the introduction to Claim 1.
  • compartments are the compartments inside chests of drawers, wardrobes, refrigerators, and ovens.
  • compartment lighting devices in particular for wardrobes, in which, when a door of the wardrobe is opened, a mechanical switch is activated, which closes an electric circuit and turns on a lamp.
  • a mechanical switch poses restrictions as to the location of the lighting device, which must be located close to the compartment opening.
  • the lighting device must be compact and so locatable as not to reduce the usable space inside the compartment; usable space being intended to mean the normally unoccupied portion of the volume of the compartment.
  • some solutions comprise two separate modules : a lighting element (e.g. a lamp) and a mechanical switch.
  • a lighting element e.g. a lamp
  • a mechanical switch e.g. a switch
  • the present invention is based mainly on operating the lighting device with no contact between the closing member of the compartment and the lighting device itself.
  • FIGS 1a and 1b show two examples of compartments N with closing members.
  • Figure 1a shows a wardrobe, in which the clothes section defines a compartment closable by a door P.
  • Figure 1b shows an item of furniture comprising a compartment N closable by a drawer C.
  • a lighting device 1 in accordance with the invention is located inside the compartment, and, when the closing member of the compartment (the door and the drawer in the Figure 1a and 1b examples) is opened, the device generates a light beam to light the inside of the compartment.
  • FIGS. 2 to 4 show a preferred embodiment of a lighting device in accordance with the present invention.
  • the LED lighting device comprises:
  • switches may be obtained using an optical transmitter/receiver pair, wherein the compartment closing member opens or closes the optical path between the transmitter and receiver (e.g. by means of a mirror) .
  • the switch is a reed switch.
  • Device 1 extends substantially in one direction x coincident with the direction of lighting module 2 with LEDs 21, while maintaining a highly compact dimension z crosswise to x and to the maximum-lighting direction y.
  • the LEDs are the surface-mounted type.
  • LEDs 21 are mounted on a first plate 22 connected electrically to a second plate 5 comprising a seat 6 for batteries 3.
  • Second plate 5 is substantially perpendicular to first plate 22, and defines the maximum dimension in direction y, corresponding to the maximum-lighting direction and perpendicular to directions x and z described above.
  • Lighting device 1 comprises a casing 7 housing the lighting module, the battery, and the switch.
  • the casing comprises two complementary shells 701 and 702 fitted together by releasable fastening means, such as screws 703 and threads 704, or joints.
  • the two shells 701 and 702 have appropriate supporting means 705 - in particular, brackets or stands - for supporting the two plates 22 and 5 with little or no movement.
  • One of the two shells - indicated 701 - has an opening 706 closed by a sliding cover 707.
  • the opening is located at battery seat 6 to permit fast battery replacement without dismantling the whole device, which, apart from being unpractical and time-consuming, would also expose delicate parts such as the reed switch or any wire soldering in the device.
  • the two shells 701 and 702 are designed so that, once fitted together, casing 7 has a longitudinal opening 708 aligned with LEDs 21, and which provides for airing the LEDs and improved lighting.
  • the device as described above is extremely lightweight, and may therefore be fixed to any wall of the compartment using two-sided adhesive tape or Velcro®.
  • the device according to the invention advantageously comprises fastening means by which to fasten the device to an external body, in particular a compartment.
  • Said fastening means preferably comprise at least one fastening opening on the opposite side to said first opening.
  • the fastening openings are in the form of two asymmetrical slots 709.
  • plate 5 supporting reed switch 4 and battery seat 6 is perpendicular to plate 22.
  • the lighting device To prevent opaque parts of the lighting device (such as the casing, if opaque, or the component parts of the device, if the casing is transparent) from interfering with the light emitted by LEDs 21 (and so producing a shadow), substantially all the opaque parts of the lighting device must be located outside the LED-generated light cone.
  • the device must be designed so that the opaque point ⁇ projecting furthest in the main lighting direction y does not interfere with the 120° light beam from the LEDs, as shown schematically in Figure 5, in which ⁇ indicates an opaque part extending in direction y.
  • Figure 6 shows, schematically, the electric circuit of the lighting device according to a preferred embodiment of the present invention.
  • a switch in particular a reed switch, is series-connected to the batteries, and opens and closes the circuit to power one or more lighting modules.
  • the Figure 5 example has two parallel-connected lighting modules 2.
  • the current regulator is substantially a three-pole, which is connected between the two (positive and negative) voltage lines to receive power and supply the series of LEDs with current of controlled value.
  • a current regulator is an Infineon BCR402R integrated circuit, though other circuit solutions may be adopted, e.g. using discrete components.
  • a current regulator 23 has the advantage of controlling current supply to the series of LEDs 21 and so reducing the sensitivity of LEDs 21 to the natural variation (caused by consumption) in voltage supply by the batteries.
  • the current regulator provides for maintaining stable lighting throughout the working life of the batteries.
  • the LEDs of each lighting module may be series-connected directly between switch 4 and batteries 3.
  • the batteries and the number of LEDs must be appropriately selected to ensure correct operating voltages and currents (typically 3V and 20mA per LED).
  • Tests show that, for applications such as drawers, good, homogeneous lighting can be achieved using ten LEDs 21, each with roughly 500 mcd lighting power (though ⁇ 20% still gives satisfactory results) and a 120° lighting cone, and placing the LEDs side by side roughly half an inch apart.
  • the above configuration provides for obtaining a lighting module with a total luminous intensity of roughly 5cd, sufficient for applications such as drawers and wardrobes.
  • the lighting device may be made of numerous materials, and using different means for connecting the two shells of the casing.
  • the lighting device may be made of material transparent to the light emitted by the LEDs, so that the device casing produces substantially no shadow by interfering with the light emitted by the LEDs.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
EP06118833A 2006-01-24 2006-08-11 LED-Beleuchtungsvorrichtung Withdrawn EP1811228A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000012U ITTO20060012U1 (it) 2006-01-24 2006-01-24 Dispositivo di illuminazione a diodi led

Publications (1)

Publication Number Publication Date
EP1811228A1 true EP1811228A1 (de) 2007-07-25

Family

ID=37027493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06118833A Withdrawn EP1811228A1 (de) 2006-01-24 2006-08-11 LED-Beleuchtungsvorrichtung

Country Status (2)

Country Link
EP (1) EP1811228A1 (de)
IT (1) ITTO20060012U1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2066149A2 (de) 2007-11-27 2009-06-03 Stefan Ruppel LED-Flachleuchte mit wärmeableitender Platine insbesondere für Möbel
CN101737697B (zh) * 2009-12-21 2012-02-22 海洋王照明科技股份有限公司 一种用于地铁车厢的应急灯

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241337A (en) * 1979-03-29 1980-12-23 General Electric Company Appliance door position sensor arrangement
GB2083719A (en) * 1980-09-09 1982-03-24 Smart John Victor Magnetically switched lighting device
US5032957A (en) * 1990-04-23 1991-07-16 David Canfield Cabinet light
US6193385B1 (en) * 1998-03-12 2001-02-27 Maklite, L.L.C. Removable, reusable safety light
WO2004038282A2 (en) * 2002-10-25 2004-05-06 Acolyte Systems, Inc. Portable light source and retainer for mounting
US20050047118A1 (en) * 2003-09-02 2005-03-03 Spahr Martin R. Lighting system for enclosures
US20050094385A1 (en) * 2003-11-03 2005-05-05 Peter Lee Portable reading light for vehicle
US20050174753A1 (en) * 2004-02-06 2005-08-11 Densen Cao Mining light
US20050270770A1 (en) * 2004-05-19 2005-12-08 Warrender Mary J Convenience light

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241337A (en) * 1979-03-29 1980-12-23 General Electric Company Appliance door position sensor arrangement
GB2083719A (en) * 1980-09-09 1982-03-24 Smart John Victor Magnetically switched lighting device
US5032957A (en) * 1990-04-23 1991-07-16 David Canfield Cabinet light
US6193385B1 (en) * 1998-03-12 2001-02-27 Maklite, L.L.C. Removable, reusable safety light
WO2004038282A2 (en) * 2002-10-25 2004-05-06 Acolyte Systems, Inc. Portable light source and retainer for mounting
US20050047118A1 (en) * 2003-09-02 2005-03-03 Spahr Martin R. Lighting system for enclosures
US20050094385A1 (en) * 2003-11-03 2005-05-05 Peter Lee Portable reading light for vehicle
US20050174753A1 (en) * 2004-02-06 2005-08-11 Densen Cao Mining light
US20050270770A1 (en) * 2004-05-19 2005-12-08 Warrender Mary J Convenience light

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2066149A2 (de) 2007-11-27 2009-06-03 Stefan Ruppel LED-Flachleuchte mit wärmeableitender Platine insbesondere für Möbel
EP2066149A3 (de) * 2007-11-27 2009-08-19 Stefan Ruppel LED-Flachleuchte mit wärmeableitender Platine insbesondere für Möbel
CN101737697B (zh) * 2009-12-21 2012-02-22 海洋王照明科技股份有限公司 一种用于地铁车厢的应急灯

Also Published As

Publication number Publication date
ITTO20060012U1 (it) 2007-07-25

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