WO2008062062A2 - Feu électrique simulé comprenant des del - Google Patents

Feu électrique simulé comprenant des del Download PDF

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Publication number
WO2008062062A2
WO2008062062A2 PCT/EP2007/062755 EP2007062755W WO2008062062A2 WO 2008062062 A2 WO2008062062 A2 WO 2008062062A2 EP 2007062755 W EP2007062755 W EP 2007062755W WO 2008062062 A2 WO2008062062 A2 WO 2008062062A2
Authority
WO
WIPO (PCT)
Prior art keywords
fire
led
leds
chassis
simulated
Prior art date
Application number
PCT/EP2007/062755
Other languages
English (en)
Other versions
WO2008062062A3 (fr
Inventor
Aubrey O Coimin
Martin Betz
Original Assignee
Basic Holdings
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
Priority claimed from GB0623464A external-priority patent/GB2444073B/en
Priority claimed from GB0623467A external-priority patent/GB2444075B/en
Application filed by Basic Holdings filed Critical Basic Holdings
Priority to GB0910825.9A priority Critical patent/GB2497718B/en
Publication of WO2008062062A2 publication Critical patent/WO2008062062A2/fr
Publication of WO2008062062A3 publication Critical patent/WO2008062062A3/fr

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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
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/04—Lighting devices or systems producing a varying lighting effect simulating flames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/002—Stoves
    • F24C7/004—Stoves simulating flames

Definitions

  • the present invention relates to electric fires and in particular to an electric fire that includes one or more light emitting diodes (LEDs) to provide for internal illumination.
  • the invention particularly relates to electric fires where one or more LEDs are used to provide illumination for the flame effect of the fire.
  • Electric fires are well known and are used to create the illusion of a real fire, typically in a domestic environment.
  • Such fires may include a chassis that incorporates a fuel bed that simulates coals or logs.
  • a flame effect is typically provided in a vertical orientation, the flames being provided in one of a number of different fashions, some of which are described in our earlier applications WO02068875.
  • Such arrangements discuss the use of tungsten filament light bulbs for providing the internal illumination necessary to provide lighting for both the flame and/or fuel beds.
  • filament light bulbs are limited for a number of reasons. For example, their power consumption is quite high which is not environmentally friendly. Yet a further disadvantage is their lifetime, in that the lifetime of filament bulbs is quite short. This can present a specific problem when they are used in the internal portions of fires and would have to be changeable by the customer as opposed to by a trained technician. In these circumstances is behoves the manufacturer of the fire to provide an opening in the chassis of such fires to enable a user to easily change the bulbs, as required. This is an additional assembly requirement in the fabrication of such fires.
  • LEDs in a fuel bed to provide regions of high intensity output so as to resemble hot spots in a fuel bed. This can be achieved by selectively locating the LEDs in desired locations. The actual LEDs are visible to the user of the fire as they are physically identifiable within the fuel bed.
  • an electric fire in accordance with the teaching of the present invention having a chassis including a light source, simulated flame effect means for reflecting light from said light source to simulate flames, simulated fuel means to simulate a bed of combusting fuel, and screen means on which to view an image of the simulated flames, said screen means being positioned between said flame effect means and said simulated fuel means, said screen means being capable of diffusely transmitting light reflected by said flame effect means and wherein the light source includes at least one light emitting diode (LED) coupled to a frame that provides a heat sink such that heat generated by the at least one LED can be taken away from the LED.
  • LED light emitting diode
  • FIG. 1 is a section through an electric fire incorporating LEDs in accordance with the teaching of the present invention.
  • FIG. 2 is a section through a second embodiment of an electric fire in accordance with the teaching of the invention showing an alternative mounting arrangement for the LED.
  • Figure 2a is a section through a fire in accordance with a further embodiment which uses a single LED to provide illumination for both the fuel bed and the flame effect means, and which also provides for a mounting of the heating element in an upper region of the fire.
  • Figure 2b is a section through a further embodiment which shows the use of a single LED to provide for illumination within the fire.
  • FIG. 3 is a section through another embodiment of an electric fire incorporating an LED in accordance with the teaching of the invention.
  • Figure 4 is a perspective view from above of a mounting arrangement including optics for use with an LED within the context of fires in accordance with the teaching of the invention.
  • Figure 5 is a perspective view of an alternative optics arrangement to that of Figure 4.
  • Figure 6 is a rear view of internal portions of an electric fire in accordance with the teaching of the invention.
  • Figure 7 shows an embodiment of a rotatable drum in accordance with the teaching of the invention which is useable to generate flame effects on a screen.
  • Figure 8 is a schematic showing how a fire using a drum according to Figure 7 could be arranged to generate the flame effects.
  • FIGS 1 and 2 show in section view an electric fire according to the teaching of the invention.
  • the fire is configured to simulate the effect of a burning real fire and includes a chassis 105 within which a fuel bed 110 is mounted horizontally in a mid region of the chassis towards the front 115 of the fire.
  • the fuel bed 110 is provided on a platform 120 and may comprise artificial coal or logs as desired. Other modifications to the arrangement of artificial fuel beds are well known and will not be discussed herein.
  • the fuel bed may be considered as being located in a main upper compartment 130 of the fire and is separated from a main lower compartment 140 by a partition 150.
  • the lower chamber 140 typically contains any suitable means for providing a thermal output, for example a forced air convection unit 155 generally comprising an electric heating element and a fan for passing an air stream over the element. As such heating means are known in the art, no further details need be given.
  • the fuel bed 110 is located towards the front of the chassis.
  • the main upper compartment is desirably sealed at this front portion by a transparent and preferably tinted panel 160.
  • This panel may be made of glass (e.g. so-called smoked glass) or plastics, e.g. acrylic or perspex.
  • the platform 120 on which the fuel bed is located is preferably a diffusing screen, e.g. a sheet of frosted or translucent glass. Beneath this platform a pivotally mounted light fan or flicker wheel 165 is provided. This flicker wheel may be driven by a motor.
  • a first light source 170 is provided and is secured to the chassis.
  • the light source may be a conventional filament bulb or more preferably is a light emitting diode.
  • the fan 165 is a generally circular element with reflective vanes driven by thermal currents rising from the light source when it is switched on.
  • the rotation of the flicker wheel causes the simulated fuel bed also flicker thereby resembling glowing coals. It will be understood that the use of filament bulbs results in a generation of such thermal currents.
  • the first light source is desirably of the type provided by one or more light emitting diodes (LEDs), and is orientated to shine light upwardly towards the fuel bed located thereabove, it may be necessary to provide a powered rotation of the flicker wheel- LEDs not generating a large amount of heat.
  • LEDs light emitting diodes
  • the securing of the first light source to the chassis is desirably to the platform 150 that separates the lower compartment 140 from the upper compartment 130.
  • a screen 180 extends upwardly from the simulated fuel bed 110 towards the upper part of the chassis 105.
  • Screen 180 may be one or more panels having a partially reflecting surface and a diffusing surface.
  • screen 180 is made from a sheet of transparent material, such as glass, acrylic or perspex, having a lightly silvered surface on its front side (i.e. that side facing the front panel 160) and having, on its rear side, a surface which is configured to diffuse the light passing through. This may be provided by having closely spaced lines scored or otherwise produced on the surface. For example, the lines may be photographically produced on the rear surface. The lines may be horizontal, or inclined, or cross-hatched, in order to provide a suitable diffusing effect.
  • any other technique which provides for the fabrication of a diffusing surface on the rear surface of the screen will be equally useful within the context of the invention in that it is not intended to limit to any one technique.
  • Mean 185 are provided for simulating a flame effect.
  • Such means in the context of Figures 1 and 2, comprise a moveable fabric, 186, such as one or more fabric ribbons, which hangs in a substantially vertical and spaced relationship at the rear of the chassis.
  • the fabric is arranged such that it will tend to ripple or undulate in a current of air provided by a small tangential fan unit 188 which is situated below the lower ends of the ribbons and which extends across most of the lower portion of an otherwise substantially airtight chamber 130a. Further information on the construction of such ribbons is found in our earlier British Patent, GB2230335.
  • a rear surface 187 of the chassis 105 may be provided with a patterned effect so as to resemble one or more flames. Such patterning may be achieved by providing regions of varying reflectivity and patterning the higher reflectivity regions to resemble flames.
  • the patterned effect can be provided integrally on the rear surface or alternatively on a preformed panel that is then located on the rear surface. The patterned effect will be located behind the ribbons,
  • the rear surface 187 of the chassis is illuminated using a second light source 190.
  • This second light source is preferably of the type provided by one or more light emitting diodes (LEDs).
  • LEDs light emitting diodes
  • Figure 1 to provide the LED(s) on a mounting that allows for modification of the angular orientation of the LED relative to the rear surface. Such modification may be achieved by providing the LED on a tiltable mount 191 , whose angle of tilt 192 may be varied as required.
  • Figure 2 shows a second way in which the relative height of the viewed flames may be changed.
  • the LED(s) are provided on a moveable frame 200 that can move upwardly and downwardly in a vertical axis.
  • a moveable frame 200 that can move upwardly and downwardly in a vertical axis.
  • the spindle arrangement has mounted thereon the moveable frame 200 and by winding a thread 210 on the spindles in a desired direction it is possible to cause the frame to move upwardly and downwardly within the chassis relative to the rear surface 187.
  • the simulated fuel bed 110 is illuminated and the partially reflective surface of screen 180 provides an image of the fuel bed.
  • the fan 188 creates undulating movement of the ribbons 186 and light from the second light source 190 is therefore reflected randomly onto the back of screen 180 so as to simulate flickering flames. This flickering image is perceived between the actual simulated fuel bed 110 and its image in the screen 180 so that the flames appear to be emanating from somewhere in the middle of an extended fuel bed.
  • both mounting arrangements described in Figures 1 and 2 allow for the orientation of illumination provided by the light source 190 relative to the rear surface to be changed.
  • This can be provided in a motorised fashion such that a user can select a desired flame height and the relative orientation of the light source to the rear surface will be changed appropriately.
  • It can also be combined with a programmable element that will enable a level of automation in this changed orientation.
  • the fire may be provided with a number of different flame arrangements such as an early stage fire, a roaring fire and then a dying fire. In each of these three examples the height of the flame will be changeable, the highest flame being associated with the roaring fire.
  • the viewing user of the fire can be presented with an aesthetic that resembles the traditional life of the fire by suitably programming an orientation of the light source relative to the fire.
  • This control could also be used in conjunction with changes in the speed of movement of the fabric or the illumination output of the light sources to more closely resemble the activity of a real fire. While the changing of the orientation of the light source relative to the rear surface may be effected by moving the mount on which the LED is mounted it will be understood that equally the surface orientation could be moved, what is achievable using the teaching of the invention is a relative change in the orientation of the surface on which the light from the LED is reflected from and the LED itself.
  • Figures 2a and 2b show another arrangement where a light source located at a single location within the fire can be used to illuminate the fuel bed and the flame generating means at the same time. By correctly orientating the light source such simultaneous illumination is possible.
  • Figure 2b also shows how the simultaneous illumination may be supplemented by provision of an additional light source such as an LED 190a, configured to direct light into the fuel bed.
  • an additional light source such as an LED 190a, configured to direct light into the fuel bed.
  • the orientation of the light source is chosen at the time of manufacture, but still in accordance with the teaching of the invention is selectable to define a desired flame pattern height on the screen.
  • Figure 2a also confirms that the physical location of a heating element within the fire is not essential as in this embodiment the heater 155 is located in an upper region of the fire and deflects heat downwardly over the fire frontage.
  • FIG 3 shows another embodiment of a fire 300 in accordance with the teaching of the invention which also uses one or more LED's for internal illumination of the fire but does not include moveable fabrics to create the flame effect.
  • the fire includes a chassis 301 , that houses a fuel bed 110 that is located in front portion of a main upper compartment 330.
  • the fuel bed 110 is positioned in front of a light diffusing and reflecting screen 180, which reflects an image of the fuel bed.
  • a light source in the form of one or more LEDs 305 is positioned in a lower main compartment 303 and directly illuminates strips of foil 306 on a rotor 307, whereby moving beams of light (B, C) are reflected from a rear reflector 310 onto an inner surface 180b of the screen 180.
  • the foil and rotor collectively are referred to as a rotisserie.
  • moving beams of light appear like flickers moving upwardly on the screen 180.
  • An auxiliary reflector 315 reflects moving beams along another path (D) to be viewed by a viewer nearer to the appliance.
  • the appliance houses a fan heater 155 located in the base of the chassis and orientated to blow heated air outwardly from the front of the fire.
  • the reflector 310 may be fixed or have a variable angle of inclination, and this angle of inclination may be moveable during use of the fire.
  • a translucent panel 160 may be provided in front of the fuel bed. This panel may be tinted, partially reflective or masked.
  • the LED 305 may also be provided with mounting means that allow its orientation to be modified.
  • such mounting means is shown in the form of a tiltable mount 320, whose angle of orientation allows a changing of the relative angle between the end plane of the LED and the rotisserie. By changing this angle it is possible to alter the angle of illumination of the light emitted from the LED onto the rotisserie. This can then serve to change the apparent height of the viewed flames. The height could also be changed by providing a movement of the rear surface 310.
  • such relative movement is not a requirement of a fire in accordance with the teachings of the invention.
  • a basic LED consists of a semiconductor diode chip mounted in the reflector cup of a lead frame that is connected to electrical (wire bond) wires, and then encased in a solid epoxy lens. LEDs emit light when energy levels change in the semiconductor diode.
  • the output pattern of the LED is defined by the epoxy, or first, lens.
  • such conventional LED arrangements are modified such that individual LEDs may be mounted within a lens system that provides a second lens above the first lens, in effect a compound lens effect.
  • a lens system that provides a second lens above the first lens, in effect a compound lens effect.
  • lens and beam shaper will be used interchangeably as the effect of the lens is to shape the output beam and any functional component that provides such shaping of the beam may be considered a suitable equivalent.
  • a lens system 400 is shown that is optimally configured for use with the LEDs that are used to illuminate the rear surfaces of the chassis.
  • Each LED is mounted on a lead frame 405 that provides electrical connection 410 to mounted LED.
  • One or more circuit tracks 415 provided on a printed circuit board allow the provision of electrical power and also control signals to be provided to the LED. Such control signals can be used to determine the on/off characteristics, the luminosity and other optical characteristics of the LED.
  • a lens holder 420 is provided to house a second lens 425, which is desirably configured to co-operate with the output of the first lens (not shown) to change the overall output of each LED.
  • the combined lens holder/second lens are then mounted relative to the LED/first lens combination, desirably by fixing the lens holder to the lead frame to which the LED is fixed.
  • the use of such a compound lens arrangement is advantageous in that the light output from the LED can be adjusted to provide a more distributed pattern which when viewed from the front of the fire is a more realistic effect than what would be achieved without the second lens.
  • the output pattern of the LED is changed from the substantially circular pattern that is provided by the first lens to a rectangular pattern as an output from the second lens.
  • the specifics of the lens arrangement used for the second lens will depend on the specific orientation chosen for the actual LED. It will be understood that conventionally the output defined by the first lens is a substantially circular output.
  • the second lens is provided with a plurality of ridges 426 on its upper surface that serve to modify the circular output pattern of the first lens to a substantially rectangular pattern. While this pattern could be arranged in a landscape or portrait configuration, it is desirably provided in a landscape mode where the width of the illumination is emphasised as opposed to its height when used with a rotatable drum. When used with the moveable fabric, it is preferable to use a portrait configuration.
  • the change in illumination pattern is possible as the shape of a rectangle can be used to broaden or heighten the output pattern, the two patterns being 90 degrees out of phase with another. Such a change is achievable by moving the relative positioning of the lines 425 on the second lens surface relative to the LED mounted therebelow. By using two or more LEDs arranged side by side it is possible to generate a distributed light source across the back surface of the chassis which provides the desired degree of illumination for the desired flame pattern.
  • the colour output of such mono-colour LEDs can be modified by suitably tinting the second lens to provide an integrated filter or by using a secondary filter that is mounted above the lens arrangement such that light emitted by the LED is filtered prior to incidence on the rear surface of the chassis.
  • the former arrangement is preferred where there is a desired predetermined colour output and there is a desire to reduce the number of separate components that need to be mounted within the chassis whereas the latter configuration provides a level of flexibility in that the non-integrated filter can be changed subsequent to installation.
  • the two arrangements could be used together to provide a further degree of colour selection- achieved by mixing the filters as desired for the output required.
  • the teaching of the present invention also provides certain configurations that may employ multi-coloured LEDs.
  • the use of such multi-coloured LEDs is advantageous in that the requirement for physical filters is obviated, as the colour sequence output can be modified by applying a suitable control sequence to the LED.
  • multi-coloured LEDs provide a higher number of distinct colour variations than are available using physical filters.
  • this lens configuration includes a second lens 505 mounted in a lens holder 510 relative to the LED provided in a lead frame 515 therebelow.
  • the second lens is provided as a microlens or lenslet array, the use of which may minimise any dispersion or diffraction effects that will occur if the light emitted by individual LED's is incident on a surface within the chassis of the fire.
  • lenslet means a matrix of miniature lenses, molded or formed onto a common base. When activated, the light from the LED is directed by the orientation of the lenses to a desired pattern that can be used to ensure that diffractive effects are minimised within the illumination area served by the LED array.
  • Electrical connections 520 can be provided to each of the lens systems to provide power and control to the individual LEDs.
  • multi-coloured LEDS such as those provided by (RGB) Red, Green and Blue high brightness LEDs that are pulse width modulated (PWM) or controlled in some other suitable fashion, it is possible to vary the intensity of each colour LED.
  • PWM pulse width modulated
  • the PWM is desirably implemented using a software routine carried out by a standard microcontroller. This routine allows effectively any colour to be generated with rapid changing strobe effects, fast and slow colour fades as well as static colours producing in effect over 16 millions colours.
  • LEDs are rated up to 100,000 hours life (over 22 years at
  • multi-coloured LEDs are used in the context of the fire of Figures 1 or 2 it is preferred that one or more multi-coloured LEDs be used for illuminating the flame effect means whereas mono-coloured LEDs may be used for illuminating the fuel bed.
  • the multi-coloured LED be used in embodiments requiring a plurality of colour sequences.
  • a processor arrangement be included within the chassis to provide suitable drive signals for the LEDs. The choice of colour can then be selected or even varied depending on the specific visual effect desired. Where used in combination with the changing orientation of illumination such effects can readily resemble the different changes in the life of a fire.
  • the processor can be used to pre-programme these events such that they are activated concurrently. While the nature of the program may be preset by the manufacturer, further modifications may employ a remote control system whereby the user can select a desired fire type and by activating a suitable control sequence can cause that effect to be simulated.
  • the implementation of such processor controls of LEDs and its interface with a remote control unit will be apparent to the person skilled in the art and requires no discussion here.
  • a fire in accordance with the teaching of the invention employs one or more LEDs to provide internal illumination to simulate fire effects.
  • the fire is of a type that includes a partially reflective screen located immediately behind the fuel bed to provide an effect where flames generated appear to be emanating from within a mid-portion of the fuel bed.
  • Figures 6 to 8 show modifications to such an arrangement.
  • a plurality of LED's 605 are provided so as to provide for internal illumination within the chassis 610 of the fire.
  • the individual LEDs are provided so as to form an array 615 which is located in a lower portion of the fire 100.
  • the array is formed by mounting each of the LEDs on a frame 620 prior to installing the LED array 615 into the chassis 610 of the fire.
  • the prior mounting of the LEDs on their dedicated mounting frame ensures that accurate location of the LEDs within the fire can be achieved as the location of the frame can be accurately enabled using one or more alignment features.
  • This also addresses the problem of locating intricate items within the reduced space available in the internal portions of the chassis, which would occur if each of the LEDs used were individually mounted within the chassis. It is much easier to mount the LEDs onto their respective location on the frame when the frame and LEDs are outside the chassis than when they are inside. This can increase the speed of assembly of such fires immeasurably.
  • Such a frame is also advantageous in that it may be used to provide a heat sink for the individual LEDs such that heat generated by the LED can be easily taken away from the heat source, thereby reducing the possibility of overheating.
  • a metal material to form the frame.
  • the LEDs are mountable on a metal core printed circuit board which may then be attached to a heat sink by way of conduction.
  • the heat sink may then suitably dissipate the heat generated by convection.
  • the printed circuit board being attached to the heat sink frame.
  • the heat sink frame is dimensioned to be larger than the metal core printed circuit board.
  • the heat sink frame may be formed to provide a directional output to the heat dissipated there from by convection.
  • the heat dissipated by convection may be directed generally in a direction to provide movement of the simulated flame effect means.
  • the heat sink frame dimensions and form is selected such as to provide for the desired location of the LEDs relative to the flame effect means and/or fuel bed, and also to provide the required heat sink functionality.
  • the heat sink frame and printed circuit board may further include corresponding alignment/locator features to enable accurate location of a printed circuit board relative to the frame.
  • the frame may also include one or more electrical connections 625, 630 that can be used to provide power to the individual LEDs.
  • electrical connections 625, 630 can be used to provide power to the individual LEDs.
  • Such incorporation of the necessary electrical connections that are required for the operation of each of the LEDs is advantageous where a number of LEDs are provided, as the electrical connections can be tested prior to installing the LEDs within the fire, thereby reducing the time required to fabricate a complete fire.
  • the electrical connections can be fabricated during construction of the frame- such as using printed circuit board technology to ensure that each electrical connection is provided as required.
  • Each of the LEDs can be individually or collectively controlled using a electronic controller 635 such that the timing sequence can be altered as desired. This can provide varying visual effects which provide improved aesthetics to the viewing used.
  • the mounted LED array is provided below a fuel bed 650, in a lower portion 640 of the fire, and shine upwardly to illuminate a lower surface of that fuel bed.
  • the individual LEDs may be provided by standard ultrabrite one colour LEDs, in a preferred embodiment, the LEDs include one or more multicoloured LEDs such that by applying an appropriate electrical signal the colour output of the LED can be changed. This has particular application in defining the viewed colour of the fire, where the user may wish to simulate an actual burning fire. In such arrangements the colour and intensity of the flames will change during the burn sequence and this can be simulated using a combination of one or more multi-coloured LEDs with suitable controllers such as the controller 635 of Figure 1.
  • a light source in the form of an LED is used to create a collimated directional light beam as an output that can be accurately directed onto a flame generating means to create a reflected pattern that resembles one or more flames on a screen.
  • the use of such directional light output means that the orientation of the light source and the screen can be used to easily provide a flame pattern of a desired height.
  • Figures 7 and 8 show an alternative arrangement for generation of fire effects within an electric fire.
  • a rotatable drum 700 which is rotatable about an axis 710 in a similar fashion to the rotissehe arrangement is provided with integrally formed or mounted LEDs 715 on its surface 720.
  • LEDs 715 By patterning the surface 720 with the LEDs in a suitable fashion as the drum rotates the light that is emitted in a specific direction will change.
  • such light 810 can then be directed through a mask 800- which is suitably provided with a patterned surface of varying transmissivity so as to generate on the screen 180 a suitable flame pattern.
  • the provision of the mask 800 with a flame pattern provided thereon provides for the shape of the ultimate pattern on the screen whereas the rotation of the drum 700 changes the light that is passed through that mask so as to vary the ultimate image.
  • the LEDs chosen on that drum could be a mixture of mono-coloured LEDs of different colours, of multi-coloured LEDs or just a combination of LEDs.
  • Such an arrangement differs from that heretofore in that the flame generating means and the light source are integrally formed and the flame generated on the screen does not arise out of reflection of the light against the flame generating means.
  • the flame generating means can be considered as including the mask 800 and the light is still directed onto the flame generating means to generate the flame pattern.
  • the invention is directed to addressing problems including the provision of a realistic flame effect.
  • the LED printed circuit board mounting and frame heat sink arrangement provide for accurate location of the LEDs within the fire. While provision of the frame heat sink enables improved quality of output from the LEDs of the array, for example by providing improved colour uniformity, and/or intensity and/or brightness, and thus provide an improved flame effect output.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

L'invention concerne un feu électrique qui possède un châssis comprenant une source de lumière, des moyens d'effet de flamme simulés pour réfléchir de la lumière provenant de ladite source de lumière afin de simuler des flammes, des moyens de combustible simulés pour simuler un lit de combustible brûlant, et des moyens d'écran sur lesquels visualiser une image des flammes simulées. Les moyens d'écran sont placés entre lesdits moyens d'effet de flamme et lesdits moyens de combustible simulés. Les moyens d'écran sont capables de transmettre de manière diffuse de la lumière réfléchie par lesdits moyens d'effet de flamme. La source de lumière comprend au moins une diode électroluminescente (DEL) couplée à un cadre qui dispose d'un dissipateur thermique, de telle sorte que la chaleur générée par l'au moins une DEL peut être capturée à partir de la DEL.
PCT/EP2007/062755 2006-11-24 2007-11-23 Feu électrique simulé comprenant des del WO2008062062A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0910825.9A GB2497718B (en) 2006-11-24 2007-11-23 Simulated electric fire incorporating LEDs

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0623464A GB2444073B (en) 2006-11-24 2006-11-24 Simulated electric fire incorporating LEDs
GB0623467.8 2006-11-24
GB0623464.5 2006-11-24
GB0623467A GB2444075B (en) 2006-11-24 2006-11-24 Simulated electric fire incorporating LEDs

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WO2008062062A2 true WO2008062062A2 (fr) 2008-05-29
WO2008062062A3 WO2008062062A3 (fr) 2008-11-27

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010079053A2 (fr) * 2008-12-17 2010-07-15 Basic Holdings Feu électrique
GB2533220A (en) * 2014-12-12 2016-06-15 Flamerite Fires Ltd Slim line fire
CN107062151A (zh) * 2017-06-08 2017-08-18 福建亚伦电子电器科技有限公司 一种可控制灯光效果的仿真壁炉
CN114659063A (zh) * 2022-03-24 2022-06-24 重庆第二师范学院 一种影视拍摄用补光照明装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2264555A (en) * 1992-02-28 1993-09-01 Kenholme Appliances Flame effect display
GB2371854A (en) * 2000-12-02 2002-08-07 Aarrow Fires Ltd Simulated solid fuel bed for an electric fireplace.
GB2391614A (en) * 2002-06-14 2004-02-11 Andrew Mcpherson Flame simulating apparatus with a laminated lens and ember simulation
US20050097792A1 (en) * 2003-11-06 2005-05-12 Damir Naden Apparatus and method for simulation of combustion effects in a fireplace
EP1655543A1 (fr) * 2004-11-05 2006-05-10 Elite Group, Inc. Cheminée à feu artificiel
NL1028972C2 (nl) * 2005-05-04 2006-11-07 Bram Bruininx Simulatiehaard met een haardbeeld en een besturingssysteem, werkwijze voor het besturen van een simulatiehaard.
GB2444073A (en) * 2006-11-24 2008-05-28 Basic Holdings Simulated fire with a beam shaper or lens modifying light from an LED

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2264555A (en) * 1992-02-28 1993-09-01 Kenholme Appliances Flame effect display
GB2371854A (en) * 2000-12-02 2002-08-07 Aarrow Fires Ltd Simulated solid fuel bed for an electric fireplace.
GB2391614A (en) * 2002-06-14 2004-02-11 Andrew Mcpherson Flame simulating apparatus with a laminated lens and ember simulation
US20050097792A1 (en) * 2003-11-06 2005-05-12 Damir Naden Apparatus and method for simulation of combustion effects in a fireplace
EP1655543A1 (fr) * 2004-11-05 2006-05-10 Elite Group, Inc. Cheminée à feu artificiel
NL1028972C2 (nl) * 2005-05-04 2006-11-07 Bram Bruininx Simulatiehaard met een haardbeeld en een besturingssysteem, werkwijze voor het besturen van een simulatiehaard.
GB2444073A (en) * 2006-11-24 2008-05-28 Basic Holdings Simulated fire with a beam shaper or lens modifying light from an LED

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010079053A2 (fr) * 2008-12-17 2010-07-15 Basic Holdings Feu électrique
WO2010079053A3 (fr) * 2008-12-17 2010-10-14 Basic Holdings Feu électrique
GB2533220A (en) * 2014-12-12 2016-06-15 Flamerite Fires Ltd Slim line fire
GB2533220B (en) * 2014-12-12 2018-12-12 Flamerite Fires Ltd Slim line fire
CN107062151A (zh) * 2017-06-08 2017-08-18 福建亚伦电子电器科技有限公司 一种可控制灯光效果的仿真壁炉
CN114659063A (zh) * 2022-03-24 2022-06-24 重庆第二师范学院 一种影视拍摄用补光照明装置
CN114659063B (zh) * 2022-03-24 2023-05-12 重庆第二师范学院 一种影视拍摄用补光照明装置

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GB2497718B (en) 2014-01-01
WO2008062062A3 (fr) 2008-11-27
GB0910825D0 (en) 2013-05-29

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