WO2009103386A1 - Ensemble douille d’éclairage de sécurité - Google Patents

Ensemble douille d’éclairage de sécurité Download PDF

Info

Publication number
WO2009103386A1
WO2009103386A1 PCT/EP2009/000258 EP2009000258W WO2009103386A1 WO 2009103386 A1 WO2009103386 A1 WO 2009103386A1 EP 2009000258 W EP2009000258 W EP 2009000258W WO 2009103386 A1 WO2009103386 A1 WO 2009103386A1
Authority
WO
WIPO (PCT)
Prior art keywords
socket
battery
power
mains
lamp
Prior art date
Application number
PCT/EP2009/000258
Other languages
English (en)
Inventor
Patrick Ward
Original Assignee
Atreus Enterprises Limited
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 Atreus Enterprises Limited filed Critical Atreus Enterprises Limited
Publication of WO2009103386A1 publication Critical patent/WO2009103386A1/fr

Links

Classifications

    • 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
    • H02J9/02—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
    • F21S8/033—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade
    • F21S8/035—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade by means of plugging into a wall outlet, e.g. night light
    • 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
    • F21S9/022—Emergency lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/06—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for aircraft runways or the like
    • 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

  • This invention relates to a socket assembly including an emergency light.
  • EL Emergency lights
  • the basic principle of operation is that the EL contains a rechargeable battery which is charged up by the mains during periods of mains power and, when the mains supply fails, the EL switches from a charging mode to a lighting mode so as to provide temporary lighting during power failure conditions.
  • These commercial/industrial ELs come in the form of a box which has to be connected to the mains supply, and they tend to be quite bulky in shape and size. They also tend to be very expensive, and usually need to be installed by skilled persons.
  • Portable ELs which plug into mains socket outlets are also quite common and are more likely to be used in domestic areas. These tend to be compact and relatively inexpensive but suffer from the problem that they can be removed or easily damaged due to their portability. Their portability and propensity for damage make them less than ideal as a reliable and viable means of providing emergency lighting.
  • an emergency light socket assembly comprising a permanent wall-mountable housing containing at least one power-supply socket having supply terminals connectable to mains power leads within the wall and at least one lamp for illuminating exteriorly of the housing, the housing further containing a rechargeable battery which is charged up by the mains during periods of mains power and a control circuit for automatically applying battery power to the lamp in the absence of mains power.
  • the housing is adapted for mounting to a wall of a building to provide a fixed power outlet socket.
  • the lamp is an LED.
  • a manually-operable test means is preferably provided to simulate the removal of mains power from the control circuit to test the operation of the lamp.
  • the test means may be latchable to allow use of the assembly as a night light powered by the battery.
  • manual operation of the test means does not remove mains power from the battery.
  • Figures 1a and 1b are front and top views of a two-gang socket assembly according to an embodiment of the invention.
  • Figure 2 is a diagram of a first embodiment of control circuitry of the assembly of Figure 1.
  • Figure 3 is a diagram of a second embodiment of control circuitry of the assembly of Figure 1.
  • a socket assembly comprises a housing 10 adapted in any suitable manner for permanent fixing to a wall 12 of a building.
  • the housing 10 is recessed into the wall 12 with a front surface 14 of the housing substantially flush with, or standing slightly proud of, the wall.
  • the housing 10 contains two power-supply sockets 16 exposed at the front surface 14, one on either side of a central compartment 18.
  • the sockets 16 are connected in parallel to live and neutral supply terminals 20, 22 respectively, the latter being exposed at the rear of the housing for connection to live and neutral mains power leads within the wall.
  • the arrangement of the sockets per se is essentially conventional and will not be further described.
  • the central compartment 18 contains a rechargeable battery 24, Figure 2, an emergency lamp L1 located behind a lens 26 in the front surface 14 of the housing, and a control circuit 28. When lit, the emergency lamp L1 shines through the lens 26 to provide a concentrated beam of light which illuminates at least the immediate surrounding in front of the socket assembly.
  • the lens can be configured to provide wide or narrow beams as desired.
  • the housing 10 is preferably dimensioned to be a direct replacement for an existing conventional double socket, whereby an emergency light can be provided without sacrificing one of the sockets.
  • FIG. 2 is a diagram of a basic control circuit for the emergency light socket assembly.
  • the mains supply live and neutral conductors L, N are connected to the terminals 20, 22 to power the supply sockets 16 in conventional manner, and this connection is not shown.
  • the emergency lamp L1 which is a filament bulb
  • the mains conductors L, N are connected to a bridge rectifier X1 via a resistor R1.
  • the rectified AC output from X1 is smoothed by a capacitor C1.
  • a light emitting diode D1 and a resistor R2 are connected in series across C1 so that D1 will light up to provide an indication that the mains supply voltage is present.
  • Resistors R3 and R4 form a potential divider whose junction is connected to the base of a transistor Q1. When the full mains supply voltage is present, Q1 is held turned off by the voltage at its base.
  • a rechargeable battery 24 comprising one or more cells is connected across the output of the rectifier X1.
  • a diode D2 prevents current flow from the battery 24 through R3 and R4.
  • Switch Sw1 is a test switch to verify the correct operation of the circuit.
  • Sw1 is opened, by pressing the test button 30, mains supply is removed from the control circuit 28, and when the voltage at the base of OJ falls below a certain level, QJ will turn on and cause L1 to illuminate as before.
  • L1 is a filament type bulb, an arrangement needs to be made to facilitate replacement of the bulb from time to time.
  • Filament bulbs require a substantial amount of current to produce effective light with the result that relatively large batteries will be required in order to produce an effective light for a given period of time.
  • Filament type bulbs usually require a voltage of 2.5V or higher to be effective, and therefore are generally not suitable for operation from a single 1.5V battery cell.
  • the rate at which the battery discharges through L1 will determine the duration of effective light that can be produced by the circuit, but this rate of discharge is not controlled. As a result the brightness of the bulb will decrease rapidly over time and may cease to be sufficiently effective even when the battery is not substantially discharged.
  • Figure 3 shows an embodiment of control circuit which mitigates these and other disadvantages and which provides a significantly more effective solution to the problem of providing emergency lighting.
  • Figure 3 uses the same reference numerals as Figure 2 for the same or equivalent components.
  • U1 is a constant current driver integrated circuit (IC) intended to drive high brightness LEDs from a battery supply.
  • IC constant current driver integrated circuit
  • the voltage on C1 will be above a certain threshold and Q1 will be held in its on state.
  • control pin CTL of U1 is held low and Vout is disabled.
  • Q1 When the voltage on C1 falls below a certain threshold, e.g. due to a power failure on the mains supply, Q1 will turn off, and as a result CTL will be pulled high by the battery voltage. This in turn will drive a current into the high brightness light emitting diode LED1 to light it and provide emergency lighting from the socket assembly.
  • Diode D2 prevents the battery 24 from maintaining a charge on C1 under power failure conditions.
  • Resistor R2 is connected in series with the battery 24 so as to provide a suitable voltage to illuminate a light emitting diode LED2 when the battery is charging.
  • a Zener diode Z1 clamps the voltage across the battery to a safe level in the event of the battery going open circuit.
  • test switch Sw1 operated by pressing the test button 30 on the front surface of the housing, provides means for testing the circuit by removing the supply to the control circuit and thereby simulating a power failure condition.
  • test switch Sw1 is of a type that can be latched open, so that the assembly could be left in the emergency lighting mode, for example as a night light.
  • the arrangement of Figure 3 will only provide effective light for a relatively short period of time based on the initial charge state of the battery and the rate at which it is drained.
  • the "night light" period can be extended by moving Sw1 to the location shown in Figure 4 (which is otherwise identical to Figure 3) so that it is in series with R4. In this arrangement, the mains supply remains connected and the battery continues to be charged regardless of the position of Sw1.
  • QI is turned off and the circuit switches to the lighting mode as before.
  • the drain on the battery will be offset to some extent by the continuously available charging current from the mains supply with the result that the lighting period will be extended to facilitate the night light function.
  • R1 could be replaced with a capacitor to provide wattless power if power dissipation was a problem in any mode of operation.
  • the circuit of U1 can be configured to operate from one or more battery cells.
  • the maximum drive current to LED1 can also be controlled by suitable component selection and configuration of the circuit so as to maximise useful battery operation.
  • the foregoing shows an embodiment of the invention providing a double gang socket outlet, but the emergency light function could readily be incorporated into single or multiple gang socket outlets.
  • an FCU Fuse Connection Unit
  • an FCU incorporating the invention can either provide an alternative or supplement emergency lighting in houses or other premises, in particular in bathrooms where portable appliance sockets are typically not used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

L’ensemble douille d’éclairage de sécurité selon la présente invention comprend un boîtier permanent pouvant être monté sur une paroi et contenant au moins une douille d’alimentation électrique (16) pourvue de bornes d’alimentation (20, 22) pouvant être connectées à des broches de raccordement du réseau électrique situées dans la paroi. Le boîtier contient en outre une batterie rechargeable (24) qui est chargée par le réseau électrique au cours de périodes d’alimentation du réseau électrique et au moins une lampe (L1) permettant d’éclairer extérieurement le boîtier. Un circuit de commande applique automatiquement la puissance de la batterie (24) à la lampe (L1) en l’absence d’alimentation du réseau électrique.
PCT/EP2009/000258 2008-02-21 2009-01-16 Ensemble douille d’éclairage de sécurité WO2009103386A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IES2008/0132 2008-02-21
IE20080132A IES20080132A2 (en) 2008-02-21 2008-02-21 Emergency light socket assembly

Publications (1)

Publication Number Publication Date
WO2009103386A1 true WO2009103386A1 (fr) 2009-08-27

Family

ID=40386208

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/000258 WO2009103386A1 (fr) 2008-02-21 2009-01-16 Ensemble douille d’éclairage de sécurité

Country Status (2)

Country Link
IE (1) IES20080132A2 (fr)
WO (1) WO2009103386A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014111824A3 (fr) * 2013-01-17 2015-07-23 Koninklijke Philips N.V. Système de distribution de puissance cc
WO2015143466A1 (fr) * 2014-03-26 2015-10-01 Tridonic Gmbh & Co Kg Dispositif, systèmes et procédé pour un mode d'éclairage de secours

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746877A (en) * 1971-03-08 1973-07-17 W Seiter Emergency light unit
US4631649A (en) * 1985-10-16 1986-12-23 Chloride Systems, a division of Chloride Power Electronics, Incorporated Plug-in emergency light fixture
GB2204944A (en) * 1987-05-18 1988-11-23 Frederick John Anderson Rechargable light
GB2255242A (en) * 1991-04-27 1992-10-28 Graham Wild Emergency lighting system
US5847550A (en) * 1996-01-22 1998-12-08 Juno Lighting, Inc. Exit sign having a pulse switching tandem flyback voltage converter and a backup battery
US6994452B2 (en) * 2000-08-24 2006-02-07 Simon Grant Rozenberg Lamps, luminaires and lighting systems
US20070090794A1 (en) * 2005-10-14 2007-04-26 Jason El Technology Co., Ltd. Wall outlet device having emergency light

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746877A (en) * 1971-03-08 1973-07-17 W Seiter Emergency light unit
US4631649A (en) * 1985-10-16 1986-12-23 Chloride Systems, a division of Chloride Power Electronics, Incorporated Plug-in emergency light fixture
GB2204944A (en) * 1987-05-18 1988-11-23 Frederick John Anderson Rechargable light
GB2255242A (en) * 1991-04-27 1992-10-28 Graham Wild Emergency lighting system
US5847550A (en) * 1996-01-22 1998-12-08 Juno Lighting, Inc. Exit sign having a pulse switching tandem flyback voltage converter and a backup battery
US6994452B2 (en) * 2000-08-24 2006-02-07 Simon Grant Rozenberg Lamps, luminaires and lighting systems
US20070090794A1 (en) * 2005-10-14 2007-04-26 Jason El Technology Co., Ltd. Wall outlet device having emergency light

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014111824A3 (fr) * 2013-01-17 2015-07-23 Koninklijke Philips N.V. Système de distribution de puissance cc
WO2015143466A1 (fr) * 2014-03-26 2015-10-01 Tridonic Gmbh & Co Kg Dispositif, systèmes et procédé pour un mode d'éclairage de secours
US10122206B2 (en) 2014-03-26 2018-11-06 Tridonic Gmbh & Co Kg Devices, systems and methods for emergency light operation

Also Published As

Publication number Publication date
IES20080132A2 (en) 2009-03-18

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