GB2444945A - Low voltage light emitting diode festive light array - Google Patents

Abstract

A low voltage festive decorative light array, comprising a mains power supply transformer plug with integral plug and cables to power by direct current light emitting diodes for display with integral light flasher to control the speed of flashing of the lights for such things as Christmas trees.

Description

I

Festive L)eccrati've Light Array This iivei-itjc)f-i relates tc) a de'vice fc)r i I I u rn I n at I ii g o r d ccc) r at i ii g a w I i-i dow, a property or tree during the festive period with a light array or light emitting diodes powered by the mains electricity supply by household mains socket transfori-rer-plug using low voltage direct current to illuminate the lights.

lIu ri rig the fést i've pen od arrangements are decorated with lights that our eliminated on property or lights arranged in patterns for display on buildings to bring in the tèstize spirit i-Iowe'v'cr the use of cc)n'verit i ona.I m ai ri S ci ectni call y powered Ii gins, powered from cables ficrn the mains can lead to electric shock. Fhese light cables can get trapped in windows or fall fu1 f water that conducts electricity furthermore bulbs can break epc)sing the occupier to potential electric shock.

A safe way to run lights is by battery but the main drew back is that the batteries run down and then have to be replaced with new ones.

To Overcome these prc,bI ems, the present I ri vent I on proposes a lOW electrical power light or light emitting diode's (TII) array. T'hese are available in high inter1si,'e light emitting "ersioris working on very low voltage using direct current.

The IJ"s are then powered by a transformer plug that is plugged into the mains electricity domestic supply to power the rniaj ri s tra.nsfonii-ier housed I ri the mains-plug along with rectifier arid regulator to give a direct current power supply to the lights wired in parallel. The voltage is reduced do-vvn from a high level alternating current electricity supply to a low level and reduced to a voltage acceptable to the LEII's when the L.EID's arc directly co i-i niected iii parallel to each supply line fiom the plug.

Each light illuminatir is Qri a lQw electrical pwcr and each light is p we red by t ran s t r n-i e r p1 u g wi en switched n at th hLJsehQld mains supply scket which has bean isIated by the t ran s fc r me r h u s e d in a ni a i n s p1 u fi-o m t he in a i ii s e I e ct i -i cal s c c k et T'he LEis may be caused t flash intermittently in alterna-tic, n using an sc i 11 at r aii d c ut put stage.

The ciscillatcr may be built in the t ran s fb r m e r p1 u g c r b Li I I t c n t he stip p1 y cable tc the LEJi's Alternate EEE's may be cperated and made t tiash by the use cf twc) sets c)f wires.

T'he inventici-i will ncw be described sclely by way cf earnple and with reference tc the a cccrl-Ipariy i rig drawl rigs in which: Figure 1 shc,'ws a EC. E'rarsfc,rmer plug, twin insulated cable arid integral cables t the plugs [E1i's pwered in parallel ri the Icw vc1tage lIC. Supply.

F' i gu re 2 sh c ws a II) (1 T'ran sfö r rn er plug p C) we ring t WC) set s c f L E E)'s w it h b u ii t I n c,scilla-tc,r in side the trarlsfQrmer plug tC) c'scillate the light sets alternately with iii S LI I at ed cab I e S Figure 3 shQws the internal electrical ci i-cu it cf the JC Fran sferi-ner plug.

Figure 4 shC)ws an C)scillatC)r tC) pulse r alternate the lights tQ flash.

Figure 5 shC)ws a T'ransfQrme,-plug with the C)scillatC)r built n the EE pC)wer supply lead, r cable frC)n-1 the pC)wer supply plug tC) the 1JE1 array In figure I, I shows the ICi2 Urarisfbrrner plug. 2, shws the transfc)r,-I-Ier plug terminals 16 shws outer irisLtlatjoi-1 to iritegi-al wires to LJEII"s 7 from the tra.n sfbrm er plug. Figure 2 shows t ra. n s fo r m e r p1 u g 1, o ii off fl ash e r sw itch 1 3, operates the lights intermittently by controlling the oscillator 1 2 and speed control 1 4, increases and decreases the flash speed regulator to control the light flash rate. 5 show positi"ve col-lnectjon 4, shws oscillator negati e supply connection A. and 6 shows negati'e supply connection B switching on and off alternately from A. Figure 3 shows t ran s fo rn-i e r 8.. regti I ato r 1 1 rect i 19 e r 1 8, or alternatively bridge rectifier, and smoothing capacitor 9, in side the transformer plug putting out 3 to 5 Volts direct current. Figure 4 shows the QsejIIatr 1 2; to flash the -EiD's with on off switch 1 3 and speed control 1 4., and Oscillator olltput stage 1 5 to switch the lights. Figure 5 shows an alternati've embodiment of the oscillator 1 2, T'he control oscillator built on to the transformer LE1D supply lead 1 7. TUbe transfbrm er 1 reduces rriai n s electricity down to a. low "oltage that is then rectified by diode 9, to run the oscillator 12 and lights 7, to make them flash alternately Li SI rig the 1-1 ash speed regLil ator 1 2 and control on off switch 14 sited on t he oscillator arid joint power supply leads to the lI's. using insulated cables 1 6, arid *1 7.

Claims (1)

1. CLAIN'l S I A deccrative direct current light array device fcr

   ilIuminatjn ccmprisiiig a light emitting diode light array arid a.

   transformer plug rect i fi ed I ow voltage power supply fr illumirlatjc,n of the diode lights with integral connected power supply cable to the diode array to supply electrical powel-frci-rrn the transformer plug to the light array from a househc,ld rnai urns electrical power supply socket 2 A decorative direct current light array device according to claim I, in which the light oscil1aticn control for allowing the lights to flash is fbed between the transformer plug output wire and the light en-uni ng diode array connection wires.

   3 4A. decorati,e direct current light array device according to clai m I, in which the light Oscillation control for allowing the lights to flash is housed in the rriains transfbriTier plug