EP3719385B1 - Electric candle - Google Patents
Electric candle Download PDFInfo
- Publication number
- EP3719385B1 EP3719385B1 EP20167484.3A EP20167484A EP3719385B1 EP 3719385 B1 EP3719385 B1 EP 3719385B1 EP 20167484 A EP20167484 A EP 20167484A EP 3719385 B1 EP3719385 B1 EP 3719385B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- area
- shaft
- electric candle
- lamp
- 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.)
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Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 230000004907 flux Effects 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 239000011343 solid material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 238000013461 design Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 241000191291 Abies alba Species 0.000 description 3
- 235000004507 Abies alba Nutrition 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 241000258971 Brachiopoda Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
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- 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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/002—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for interchangeability, i.e. component parts being especially adapted to be replaced by another part with the same or a different function
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
- F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
- F21K9/237—Details of housings or cases, i.e. the parts between the light-generating element and the bases; Arrangement of components within housings or cases
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S4/00—Lighting devices or systems using a string or strip of light sources
- F21S4/10—Lighting devices or systems using a string or strip of light sources with light sources attached to loose electric cables, e.g. Christmas tree lights
-
- 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
- F21W2121/00—Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
-
- 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
- F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
- F21Y2107/30—Light sources with three-dimensionally disposed light-generating elements on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
-
- 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
- F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
- F21Y2107/40—Light sources with three-dimensionally disposed light-generating elements on the sides of polyhedrons, e.g. cubes or pyramids
-
- 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 invention relates to an electric candle which is made up of a lamp base and a cylindrical lamp body.
- the cylindrical lamp body is aligned vertically and determines the appearance of a candle, which lights up at its upper end and merges into a lamp base at the lower end to accommodate and hold the electric candle.
- Such electric candles can be used in a chain of lights, which can be used in general, for example, for the festive lighting of Christmas trees or decorative objects.
- the electric candles are preferably used to illuminate star-shaped lampshades and decorative objects.
- an electric candle with an on/off switching function emerges.
- a non-contact proximity switch is provided to switch the candle on or off.
- the candle body has a cylindrical shape, which has a flame-like configuration at its upper end in order to produce the character of a candle-like illumination.
- the electric candle has a flame-shaped, transparent luminous body at the upper end of the cylindrical hollow body, in which a lighting device with an LED and a rechargeable battery is housed as energy storage.
- a candle with a rechargeable battery or battery-powered electrical supply is also out of the DE 203 06 723 U1 out.
- This battery or accumulator-operated candle is designed as a replacement for ordinary candles in such a way that it can be accommodated by a commercially available Christmas tree candle holder and the Christmas tree can thus be electrically illuminated as a safer alternative to burning candles.
- the US 2015/285 487 A1 relates to an incandescent bulb, and in particular to an incandescent bulb of the type that includes one or more energy efficient lighting devices such as light emitting diodes.
- a problem to be solved is that the amount of heat generated by the lighting means, such as light-emitting diodes, is quickly conducted away from the lighting device.
- a combination of a lightbulb and a lamp holder is provided, in which the lightbulb comprises a number of light-emitting diodes which are mounted on a mounting platform which is arranged in a globe of the lightbulb.
- the mounting platform is mounted on and in thermally conductive engagement with a heat transfer element that is within and in thermally conductive engagement with an Edison screw-threaded first-coupling element also made of thermally conductive material so that the heat generated by the light emitting diodes is conducted through the mounting platform, the heat transfer element and the first coupling element is guided into the bulb holder.
- an LED lamp which has a base, a tube conductor, a light bulb and at least one LED.
- the base is metallic and has an electrical connection.
- the tubular conductor is with filled with a liquid and mounted on the base and has a distal end and a proximal end.
- the bulb is transparent and connected to the base.
- the at least one LED is attached to the distal end of the tubing and is electrically connected to the terminal of the base.
- the fluid in the tubular conductor can vaporize near the operating temperatures of the LED, so that heat is transported away from the LED quickly and efficiently, so that high-power LEDs or multiple LEDs can be implemented, thereby improving the brightness of the LED lamp and commercial applications will.
- the electric candles according to the prior art have various disadvantages depending on their design. Often the lamps used, which are mainly based on LED lighting technology, cannot be used optimally in terms of their electrical connection values. In addition, the electrical energy stores, the batteries and accumulators, lead to a restriction in the use of the electric candles due to their weight.
- the object of the invention is therefore to provide an electric candle that can be used in commercially available light chains and with common electrical connection values and that can also take advantage of the use of LED lighting technology.
- the advantages of LED lighting technology are seen in particular in the fact that the lamps get by with very little electrical energy and are also very light thanks to the use of electronic components. Furthermore, LEDs have a very long service life with a correspondingly high number of switching operations and high energy efficiency.
- the appearance of the candle is created in particular by the arrangement and concentration of the luminous area at an upper end of the cylindrical candle, which is usually arranged vertically, whereas the non-luminous lamp base is designed to be accommodated in a corresponding lamp socket at the other lower end.
- the shaft inside the candle body is particularly advantageously designed as a circular cylinder in its extension area and as a cuboid in the lighting area, with the cuboid having two square end faces. With a square face, the cuboid transitions into the extension area at the end and the other face forms the distal boundary of the shaft, which is equipped with the light sources as a light area.
- the lighting means are preferably evenly distributed on the side surfaces of the cuboid and also arranged on the distal end surface of the lighting area of the shaft.
- Two lamps are particularly preferably arranged on each side face of the cuboid and on the distal end face.
- the lighting area is shorter than the extension area, so that the lighting effect occurs in the upper area at the end, where the flame is designed with the lighting effect of conventional candles.
- the shaft with the lighting area for accommodating the lighting means is made in one piece and is made of aluminum or plastic.
- the one-piece configuration of the shaft achieves good heat absorption and dissipation from the lighting means, which are arranged on the surface of the lighting area of the shaft and are in thermal contact with it.
- the shank according to the invention is designed in two parts, with the shank having a core made of aluminum, which is encapsulated with plastic.
- the aluminum is preferably not encapsulated by plastic, so that the lighting means are applied to the aluminum core and are in thermally conductive contact with it in order to dissipate the heat.
- the lighting means are particularly preferably in the form of LEDs which are glued onto the lighting area of the shaft.
- the use of LEDs represents a particularly energy-efficient light source for the electric candle, and gluing the LEDs to the shaft is an advantageous manufacturing arrangement and fixation of the illuminants in a lamp, which also leads to good thermal contact.
- At least one feed groove is formed in the extension area of the shaft for feeding electrical lines from the lamp base to the electrical lamps, which are located in the lighting area at the opposite end of the shaft and must be electrically contacted from the lamp base.
- the end region of the lamp envelope opposite the lamp base is rounded and closed at the end, so that the parts of the lamp carrying electrical current are protected from external influences, such as moisture and dust.
- the lighting area with the lighting means is surrounded in the longitudinal direction by a transparent fixing layer, which surrounds the lighting means in a form-fitting manner and holds it to the lighting area.
- the lengthening area is surrounded by a decorative fixing layer in the longitudinal direction, in order to ensure the mechanical strength of the entire upper and, moreover, with the decorative fixing layer, the possibility of an attractive aesthetic design is achieved as a side effect.
- the fixing layers Preference is given to the fixing layers, the transparent fixing layer, which of course has to let the light generated by the lighting means pass through to the outside in the lighting area, and the decorative fixing layer in the form of a shrink tube.
- the lighting means on the distal end face of the lighting area of the shaft are designed with only 70% of the luminous flux of the lighting means on the side surfaces of the lighting area.
- the electric candle is operated with a voltage of 6.0 volts to 6.3 volts and an output of 0.5 watts to 0.6 watts and has a luminous flux of 50 lumens to 70 lumens.
- the lamp envelope is preferably made of polycarbonate, the lamp envelope being particularly preferably clear in the lighting area of the shaft and provided with a frosted finish over the extension area of the shaft.
- the lamp base is preferably designed as a so-called E10 base, as a result of which the electric candle can be used in conventional lamp sockets for light chains and the like.
- an electric candle 1 is shown in a side view.
- the electric candle 1 consists essentially of a lamp body 3 and a lamp base 2, on which the lamp body 3 is placed and connected to it.
- a base of the type E10 is designed as the lamp base 2 .
- the lamp body 3 is surrounded on the outside by the Lamp envelope 4, which is designed as a hollow cylinder.
- the lamp envelope is transparent, at least in the area of the illuminants 9, in order to emit the light generated to the outside.
- the lamp envelope 4 is made of polycarbonate in the illustrated embodiment.
- the lamp envelope 4 is connected to the lamp base 2 on one side and has an end region 6 on the other side, which is rounded and closed and thus delimits the electric candle 1 at the top.
- a shaft 5 which extends essentially over the entire length of the lamp envelope 4 and is arranged coaxially with the lamp envelope 4 and which can be functionally divided into two areas.
- the area of the shaft 5 from the lamp base 2, or placed on the lamp base 2, upwards is referred to as the extension area 7, which then merges into the lighting area 8 at the end.
- the luminous area 8 of the shaft is arranged in the end area 6 of the lamp envelope 4 .
- the light sources 9 are arranged in the lighting area 8 in such a way that the light is emitted outwards through the lamp envelope 4, whereby, depending on the specifics of the LED light sources 9 used, there is also emission not only in the radial direction, but also obliquely upwards and downwards he follows.
- the transparent or at least opaque lamp envelope 4 allows the decorative fixing layer 12 that surrounds the extension region 7 of the shaft 5 to shine through.
- the shaft 5 of the electric candle 1 is shown separately in side view.
- the shaft 5 is divided into the extension area 7 and the Illuminated area 8, where the illuminated area 8 is generally designed to be smaller than the extension area 7 in the axial extent.
- the luminous area 8 serves to accommodate the luminous means 9 and the illustration shows that the luminous area 8 in the region of the luminous means 9 is surrounded by a layer, the transparent fixing layer 11, which is shown in dots.
- the transparent fixing layer 11 surrounds the lighting means 9 and holds them in a form-fitting manner on the lighting area 8 of the shaft 5 .
- the lighting means 9 are designed as LEDs, preferably glued onto the shaft 5 in the lighting area 8 .
- the extension area 7 is surrounded by a decorative fixing layer 12 which, in addition to its function of decorative and aesthetic design, also enables the electrical connection lines to be fixed in place.
- the electrical connecting lines, not shown, in the extension area 7 of the shaft 5 are laid in a feed groove 10 and are used to supply the lighting means 9 with electrical energy from the lamp base 2 .
- the shaft 5 is received and held on one side by the lamp base 2 and the electrical connections extend from the lamp base 2, guided in the feed groove 10, over the extension area 7 to the lighting area 8, where the lighting means 9 are contacted with the lines.
- the decorative fixing layer 12 envelops the shank 5 in the extension area 7 and thus stabilizes the position of the electrical lines in the feed groove 10.
- the shank 5 is preferably designed as a circular cylinder made of solid material.
- the shaft 5 made of plastic (not according to the invention) is produced in an injection molding process in a particularly preferred and cost-effective manner.
- the lighting area 8 is designed in a special way to accommodate the lighting means 9 . For this purpose, it is particularly favorable to provide a flat surface for thermal contact, with which the LEDs can be connected over the entire surface as the lighting means 9 . This serves to dissipate heat as much as possible from the LEDs into the shaft 5 .
- the design according to 2 is in plan view of the distal end face of the shaft 5 according to 3 shown.
- the representation according to 3 shows the design of the luminous area 8 in cross section as a square.
- other shapes of the polygon than a pentagon or hexagon can also be advantageously designed.
- the lighting means 9 are connected to the lighting area in a thermally conductive manner over their entire surface.
- the shaft 5 is designed as a heat sink, which absorbs and dissipates the waste heat from the lamps 9 in the lighting area 8 with appropriate thermal contact with the lamps 9, in order to then partially radiate it via the extension area 7 or transfer it to the lamp base 2 by means of heat conduction and heat transfer derive.
- a very efficient embodiment is that the shaft 5 is made of aluminum, which realizes excellent heat conduction.
- the shaft is made of an aluminum core which can be contacted directly with the lighting means 9 in the lighting area 8 .
- the extension area 7 is overmoulded with a plastic.
- the solid material of the shaft 5 itself already absorbs a large part of the heat and distributes it within the shaft so that local overheating in the area of the lighting means 9 cannot occur.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
Die Erfindung betrifft eine elektrische Kerze, welche aus einem Lampensockel und einem zylindrischen Lampenkörper ausgebildet ist. Der zylindrische Lampenkörper ist vertikal ausgerichtet und bestimmt das Erscheinungsbild einer Kerze, welche an ihrem oberen Ende leuchtet und am unteren Ende in einen Lampensockel zur Aufnahme und Halterung der elektrischen Kerze übergeht.The invention relates to an electric candle which is made up of a lamp base and a cylindrical lamp body. The cylindrical lamp body is aligned vertically and determines the appearance of a candle, which lights up at its upper end and merges into a lamp base at the lower end to accommodate and hold the electric candle.
Derartige elektrische Kerzen können in einer Lichterkette eingesetzt werden, welche beispielsweise zur festlichen Beleuchtung von Christbäumen oder Dekorationsobjekten allgemein eingesetzt werden kann. Bevorzugt werden die elektrischen Kerzen zur Beleuchtung von sternenförmigen Lampenschirmen und Dekorationsobjekten eingesetzt.Such electric candles can be used in a chain of lights, which can be used in general, for example, for the festive lighting of Christmas trees or decorative objects. The electric candles are preferably used to illuminate star-shaped lampshades and decorative objects.
Im Stand der Technik sind diverse Ausgestaltungen von elektrischen Kerzen bereits bekannt.Various configurations of electric candles are already known in the prior art.
Aus der
Weiterhin ist aus der
Ebenso eine Kerze mit Akku beziehungsweise batteriegespeister Elektroversorgung geht aus der
Die
Aus der
Den elektrischen Kerzen nach dem Stand der Technik sind je nach Ausgestaltung diverse Nachteile zu eigen. Häufig können die verwendeten Leuchtmittel, die überwiegend auf LED-Lichttechnik beruhen, nicht optimal hinsichtlich ihrer elektrischen Anschlusswerte eingesetzt werden. Darüber hinaus führen die elektrischen Energiespeicher, die Batterien und Akkumulatoren, aufgrund ihres Gewichtes zu einer Einschränkung in der Anwendung der elektrischen Kerzen. Die Aufgabe der Erfindung besteht somit darin, eine elektrische Kerze zur Verfügung zu stellen, welche in handelsüblichen Lichterketten und mit verbreiteten elektrischen Anschlusswerten einsetzbar ist und dass darüber hinaus die Vorteile der Verwendung der LED-Leuchttechnik zur Anwendung kommen kann. Die Vorteile der LED-Leuchttechnik werden insbesondere darin gesehen, dass die Leuchtmittel mit sehr wenig Elektroenergie auskommen und darüber hinaus durch die Verwendung elektronischer Bauteile sehr leicht sind. Weiterhin besitzen LEDs eine sehr hohe Lebensdauer mit entsprechend hohen Schaltzahlen bei hoher Energieeffizienz.The electric candles according to the prior art have various disadvantages depending on their design. Often the lamps used, which are mainly based on LED lighting technology, cannot be used optimally in terms of their electrical connection values. In addition, the electrical energy stores, the batteries and accumulators, lead to a restriction in the use of the electric candles due to their weight. The object of the invention is therefore to provide an electric candle that can be used in commercially available light chains and with common electrical connection values and that can also take advantage of the use of LED lighting technology. The advantages of LED lighting technology are seen in particular in the fact that the lamps get by with very little electrical energy and are also very light thanks to the use of electronic components. Furthermore, LEDs have a very long service life with a correspondingly high number of switching operations and high energy efficiency.
Die Aufgabe wird durch eine elektrische Kerze mit den Merkmalen gemäß Patentanspruch 1 gelöst. Weiterbildungen sind in den abhängigen Patentansprüchen angegeben.The object is achieved by an electric candle with the features according to
Die Erscheinungsform der Kerze entsteht insbesondere durch die Anordnung und Konzentration des Leuchtbereiches an einem oberen Ende der üblicherweise vertikal angeordneten zylindrischen Kerze, wohingegen am anderen unteren Ende der nicht leuchtende Lampensockel zur Aufnahme in einer entsprechenden Lampenfassung ausgebildet ist.The appearance of the candle is created in particular by the arrangement and concentration of the luminous area at an upper end of the cylindrical candle, which is usually arranged vertically, whereas the non-luminous lamp base is designed to be accommodated in a corresponding lamp socket at the other lower end.
Besonders vorteilhaft ist der Schaft im Inneren des Kerzenkörpers in seinem Verlängerungsbereich als Kreiszylinder und im Leuchtbereich als Quader ausgebildet, wobei der Quader zwei quadratische Stirnflächen besitzt. Mit einer quadratischen Stirnfläche geht der Quader endseitig in den Verlängerungsbereich über und die andere Stirnseite bildet die distale Begrenzung des Schaftes, welche als Leuchtbereich mit den Leuchtmitteln ausgestattet ist.The shaft inside the candle body is particularly advantageously designed as a circular cylinder in its extension area and as a cuboid in the lighting area, with the cuboid having two square end faces. With a square face, the cuboid transitions into the extension area at the end and the other face forms the distal boundary of the shaft, which is equipped with the light sources as a light area.
Bevorzugt sind die Leuchtmittel auf den Seitenflächen des Quaders gleichmäßig verteilt und zusätzlich auch auf der distalen Stirnfläche des Leuchtbereiches des Schaftes angeordnet.The lighting means are preferably evenly distributed on the side surfaces of the cuboid and also arranged on the distal end surface of the lighting area of the shaft.
Besonders bevorzugt sind auf jeder Seitenfläche des Quaders und auf der distalen Stirnfläche zwei Leuchtmittel angeordnet.Two lamps are particularly preferably arranged on each side face of the cuboid and on the distal end face.
Vorteilhaft für die kerzenartige Wirkung der elektrischen Kerze ist der Leuchtbereich kürzer als der Verlängerungsbereich ausgebildet, sodass die Leuchtwirkung im oberen Bereich endseitig entsteht, wo bei herkömmlichen Kerzen die Flamme mit deren Leuchtwirkung ausgeführt ist.Advantageously for the candle-like effect of the electric candle, the lighting area is shorter than the extension area, so that the lighting effect occurs in the upper area at the end, where the flame is designed with the lighting effect of conventional candles.
Eine alternative Ausgestaltung (nicht gemäß der Erfindung) besteht darin, dass der Schaft mit dem Leuchtbereich zur Aufnahme der Leuchtmittel einteilig und aus Aluminium oder Kunststoff ausgebildet ist. Durch die einteilige Ausgestaltung des Schaftes wird eine gute Wärmeaufnahme und -ableitung von den Leuchtmitteln erreicht, welche auf der Oberfläche des Leuchtbereichs des Schaftes angeordnet und mit diesem thermisch kontaktiert sind.An alternative configuration (not according to the invention) is that the shaft with the lighting area for accommodating the lighting means is made in one piece and is made of aluminum or plastic. The one-piece configuration of the shaft achieves good heat absorption and dissipation from the lighting means, which are arranged on the surface of the lighting area of the shaft and are in thermal contact with it.
Der Schaft nach der Erfindung ist zweiteilig ausgeführt, wobei der Schaft einen Kern aus Aluminium aufweist, welcher mit Kunststoff umspritzt ist. Im Leuchtbereich ist das Aluminium bevorzugt nicht von Kunststoff umspritzt, so dass die Leuchtmittel auf dem Aluminiumkern aufgebracht sind und mit diesem entsprechend wärmeleitend zur Abführung der Wärme kontaktiert sind. Besonders bevorzugt sind die Leuchtmittel als LED ausgebildet, welche auf den Leuchtbereich des Schaftes aufgeklebt werden. Die Verwendung von LED's stellen eine besonders energieeffiziente Lichtquelle für die elektrische Kerze dar und das Aufkleben der LED's auf dem Schaft ist eine fertigungstechnisch vorteilhafte Anordnung und Fixierung der Leuchtmittel in einer Lampe, welche darüber hinaus auch zu einer guten thermischen Kontaktierung führt.The shank according to the invention is designed in two parts, with the shank having a core made of aluminum, which is encapsulated with plastic. In the lighting area, the aluminum is preferably not encapsulated by plastic, so that the lighting means are applied to the aluminum core and are in thermally conductive contact with it in order to dissipate the heat. The lighting means are particularly preferably in the form of LEDs which are glued onto the lighting area of the shaft. The use of LEDs represents a particularly energy-efficient light source for the electric candle, and gluing the LEDs to the shaft is an advantageous manufacturing arrangement and fixation of the illuminants in a lamp, which also leads to good thermal contact.
Gemäß einer vorteilhaften Ausgestaltung ist im Verlängerungsbereich des Schaftes mindestens eine Zuführnut zur Heranführung von elektrischen Leitungen vom Lampensockel zu den elektrischen Leuchtmitteln ausgebildet, welche sich wie angegeben im Leuchtbereich am gegenüberliegenden Ende des Schaftes befinden und vom Lampensockel aus elektrisch kontaktiert werden müssen.According to an advantageous embodiment, at least one feed groove is formed in the extension area of the shaft for feeding electrical lines from the lamp base to the electrical lamps, which are located in the lighting area at the opposite end of the shaft and must be electrically contacted from the lamp base.
Der dem Lampensockel gegenüberliegende Endbereich der Lampenhülle nach der Erfindung ist abgerundet und endseitig verschlossen ausgebildet, so dass die elektrischen Strom führenden Teile der Lampe vor äußeren Einflüssen, wie Feuchtigkeit und Staub, geschützt sind.According to the invention, the end region of the lamp envelope opposite the lamp base is rounded and closed at the end, so that the parts of the lamp carrying electrical current are protected from external influences, such as moisture and dust.
Besonders im Hinblick auf die mechanische Belastbarkeit und Beanspruchbarkeit der elektrischen Kerze sind der Leuchtbereich mit den Leuchtmitteln in Längserstreckung von einer transparenten Fixierschicht umgeben, welche die Leuchtmittel formschlüssig umgibt und am Leuchtbereich hält.Especially with regard to the mechanical strength and resilience of the electric candle, the lighting area with the lighting means is surrounded in the longitudinal direction by a transparent fixing layer, which surrounds the lighting means in a form-fitting manner and holds it to the lighting area.
Ebenso vorteilhaft ist der Verlängerungsbereich in Längserstreckung von einer dekorativen Fixierschicht umgeben, um die mechanische Beanspruchbarkeit des gesamten Schaftes zu sichern und darüber hinaus wird mit der dekorativen Fixierschicht die Möglichkeit einer ansprechenden ästhetischen Gestaltung als ein Nebeneffekt erreicht.Equally advantageously, the lengthening area is surrounded by a decorative fixing layer in the longitudinal direction, in order to ensure the mechanical strength of the entire upper and, moreover, with the decorative fixing layer, the possibility of an attractive aesthetic design is achieved as a side effect.
Bevorzugt sind die Fixierschichten, die transparente Fixierschicht, welche im Leuchtbereich selbstverständlich das erzeugte Licht von den Leuchtmitteln nach außen hindurchlassen muss und die dekorative Fixierschicht als Schrumpfschlauch ausgebildet.Preference is given to the fixing layers, the transparent fixing layer, which of course has to let the light generated by the lighting means pass through to the outside in the lighting area, and the decorative fixing layer in the form of a shrink tube.
Die Leuchtmittel auf der distalen Stirnfläche des Leuchtbereiches des Schaftes sind nur mit 70 % des Lichtstromes der Leuchtmittel auf den Seitenflächen des Leuchtbereiches ausgebildet. Durch die Dimmung der Leuchtmittel auf der Stirnfläche wird ein gleichmäßiges Ergebnis der Lichtabstrahlung erreicht, was einerseits den Blendeffekt für den Betrachter der elektrischen Kerze verringert und andererseits zu einer gleichmäßigeren Ausleuchtung beim Einsatz in sternenförmigen Lampenschirmen beiträgt.The lighting means on the distal end face of the lighting area of the shaft are designed with only 70% of the luminous flux of the lighting means on the side surfaces of the lighting area. By dimming the lamps on the A uniform result of the light emission is achieved on the front surface, which on the one hand reduces the glare effect for the viewer of the electric candle and on the other hand contributes to a more uniform illumination when used in star-shaped lampshades.
Die elektrische Kerze wird mit einer Spannung von 6,0 Volt bis 6,3 Volt und einer Leistung von 0,5 Watt bis 0,6 Watt betrieben und besitzt einen Lichtstrom von 50 Lumen bis 70 Lumen.The electric candle is operated with a voltage of 6.0 volts to 6.3 volts and an output of 0.5 watts to 0.6 watts and has a luminous flux of 50 lumens to 70 lumens.
Die Lampenhülle ist bevorzugt aus Polykarbonat ausgebildet, wobei die Lampenhülle besonders bevorzugt im Leuchtbereich des Schaftes klar und über den Verlängerungsbereich des Schaftes hinweg mit einer Frostoptik ausgestattet ist.The lamp envelope is preferably made of polycarbonate, the lamp envelope being particularly preferably clear in the lighting area of the shaft and provided with a frosted finish over the extension area of the shaft.
Bevorzugt wird der Lampensockel als sogenannter E10-Sockel ausgeführt, wodurch die elektrische Kerze in herkömmlichen Lampenfassungen für Lichterketten und Ähnliches einsetzbar ist.The lamp base is preferably designed as a so-called E10 base, as a result of which the electric candle can be used in conventional lamp sockets for light chains and the like.
Weitere Einzelheiten, Merkmale und Vorteile von Ausgestaltungen der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen mit Bezugnahme auf die zugehörigen Zeichnungen. Es zeigen:
- Fig. 1:
- Seitenansicht einer elektrischen Kerze,
- Fig. 2:
- Schaft der elektrischen Kerze in der Seitenansicht und
- Fig. 3:
- Draufsicht auf die Stirnfläche des Schaftes.
- Figure 1:
- side view of an electric candle,
- Figure 2:
- Shaft of the electric candle in side view and
- Figure 3:
- Top view of the face of the shank.
In
Die elektrische Kerze 1 besteht im Wesentlichen aus einem Lampenkörper 3 und einem Lampensockel 2, auf welchem der Lampenkörper 3 aufgesetzt und mit diesem verbunden ist. Als Lampensockel 2 ist ein Sockel des Typs E10 ausgeführt. Der Lampenkörper 3 wird nach außen umschlossen von der Lampenhülle 4, welche als ein Hohlzylinder ausgebildet ist. Die Lampenhülle ist mindestens im Bereich der Leuchtmittel 9 transparent ausgeführt um das erzeugte Licht nach außen abzustrahlen. Die Lampenhülle 4 ist in der dargestellten Ausführung aus Polykarbonat gefertigt.The
Die Lampenhülle 4 ist auf einer Seite mit dem Lampensockel 2 verbunden und besitzt auf der anderen Seite einen Endbereich 6, welcher abgerundet und verschlossen ist und die elektrische Kerze 1 somit nach oben begrenzt.The
Im Inneren der Lampenhülle 4 ist ein sich im Wesentlichen über die gesamte Länge der Lampenhülle 4 erstreckender Schaft 5 koaxial zur Lampenhülle 4 angeordnet, welcher funktional in zwei Bereiche gliederbar ist. Der Bereich des Schaftes 5 vom Lampensockel 2, beziehungsweise aufsetzend auf den Lampensockel 2, nach oben wird als Verlängerungsbereich 7 bezeichnet, welcher dann endseitig in den Leuchtbereich 8 übergeht. Der Leuchtbereich 8 des Schaftes ist im Endbereich 6 der Lampenhülle 4 angeordnet. Die Anordnung der Leuchtmittel 9 im Leuchtbereich 8 des Schaftes 5 und damit deren örtliche Konzentration in einem Teilbereich der elektrischen Kerze 1, nämlich dem Lampensockel 2 gegenüberliegenden Bereich der elektrischen Kerze 1, führt zu der kerzenartigen Anmutung der Leuchte.Inside the
Die Leuchtmittel 9 sind in dem Leuchtbereich 8 derart angeordnet, dass eine Abstrahlung des Lichtes nach außen durch die Lampenhülle 4 hindurch erfolgt, wobei nach der Spezifik der verwendeten LED Leuchtmittel 9 auch eine Abstrahlung nicht nur in radialer Richtung, sondern auch schräg nach oben und unten erfolgt. Die transparente, beziehungsweise mindestens opake Lampenhülle 4 lässt die dekorative Fixierschicht 12 durchscheinen, welche den Verlängerungsbereich 7 des Schaftes 5 umgibt.The
In
Die Ausgestaltung gemäß
Der Schaft 5 ist konzeptionsgemäß als Kühlkörper ausgeführt, der im Leuchtbereich 8 bei entsprechender thermischen Kontaktierung der Leuchtmittel 9 die Abwärme der Leuchtmittel 9 aufnimmt und ableitet, um sie dann über den Verlängerungsbereich 7 teilweise abzustrahlen oder mittels Wärmeleitung und Wärmeübergang auf den Lampensockel 2 zu übertragen und abzuleiten. Eine sehr effiziente Ausgestaltung besteht darin, dass der Schaft 5 aus Aluminium ausgeführt ist, welches eine ganz hervorragende Wärmeleitung realisiert. Aus Kostengründen wird der Schaft aus einem Aluminiumkern ausgeführt welcher im Leuchtbereich 8 direkt mit den Leuchtmitteln 9 kontaktierbar ist. Der Verlängerungsbereich 7 ist mit einem Kunststoff umspritzt. Das Vollmaterial des Schaftes 5 nimmt selbst bereits einen Großteil der Wärme auf und verteilt diese innerhalb des Schaftes, so dass es nicht zu lokalen Überhitzung im Bereich der Leuchtmittel 9 kommen kann.The
- 11
- Elektrische KerzeElectric candle
- 22
- Lampensockellamp base
- 33
- Lampenkörperlamp body
- 44
- Lampenhüllelamp shell
- 55
- Schaftshaft
- 66
- Endbereichend area
- 77
- Verlängerungsbereichextension area
- 88th
- Leuchtbereichluminous area
- 99
- Leuchtmittelbulbs
- 1010
- Zuführnutfeed groove
- 1111
- Transparente FixierschichtTransparent fixing layer
- 1212
- Dekorative FixierschichtDecorative fixing layer
Claims (13)
- An electric candle (1), consisting of a lamp base (2) and a cylindrical lamp body (3), wherein the lamp body (3) is composed of an at least partially transparent outer hollow cylindrical lamp envelope (4) with a rounded distal end area (6) closed at the end and an inner shaft (5) essentially extending across the length of the lamp envelope (4), wherein the shaft (5) has an extension area (7) and a light-emitting area (8) with light-emitting means (9) at the end, and the light-emitting area (8) of the shaft (5) is arranged in the end area (6) of the lamp envelope (4), and the shaft (5) is formed of a solid material as a heat sink for absorbing heat from the light-emitting means (9) and is in thermally conductive contact with the lamp base (2), wherein the shaft (5) is formed in two parts with a core made of aluminum which is insert-molded with a plastic material, wherein the light-emitting area (8) consists of aluminum.
- The electric candle (1) according to claim 1, characterized in that the shaft (5) is formed as a circular cylinder in the extension area (7) and as a cuboid with two square end faces in the light-emitting area (8).
- The electric candle (1) according to claim 1, characterized in that the light-emitting means (9) are arranged on the side surfaces of the cuboid and on the distal end face of the light-emitting area (8) of the shaft (5).
- The electric candle (1) according to any one of claims 1 to 3, characterized in that the light-emitting area (8) is shorter than the extension area (7).
- The electric candle (1) according to any one of claims 1 to 4, characterized in that the light-emitting means (9) are formed as LEDs and the LEDs are bonded to the light-emitting area (8) of the shaft (5).
- The electric candle (1) according to any one of claims 1 to 5, characterized in that at least one feed groove (10) is formed in the extension area (7) of the shaft (5) for guiding electrical lines from the lamp base (2) to the electric light-emitting means.
- The electric candle (1) according to any one of claims 1 to 6, characterized in that the lamp base (2) is formed as an E10 base.
- The electric candle (1) according to any one of claims 1 to 7, characterized in that the light-emitting area (8) with the light-emitting means (9) is surrounded by a transparent fixing layer (11) in the longitudinal extension.
- The electric candle (1) according to any one of claims 1 to 8, characterized in that the extension area (7) is surrounded by a decorative fixing layer (12) in the longitudinal extension.
- The electric candle (1) according to claim 8 or 9, characterized in that the fixing layer (11, 12) is formed as a shrink tube.
- The electric candle (1) according to any one of claims 1 to 10, characterized in that the light-emitting means (9) on the distal end face of the light-emitting area (8) of the shaft (5) are formed with 70% of the luminous flux of the light-emitting means (9) on the side surfaces of the light-emitting area (8).
- The electric candle (1) according to any one of claims 1 to 11, characterized in that the light-emitting means (9) have a voltage of 6.0 V to 6.3 V, a power of 0.5 W to 0.6 W and a luminous flux of 50 Im to 70 Im.
- The electric candle (1) according to any one of claims 1 to 12, characterized in that the lamp envelope (4) is formed of polycarbonate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE202019101941.7U DE202019101941U1 (en) | 2019-04-04 | 2019-04-04 | Electric candle |
Publications (2)
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EP3719385A1 EP3719385A1 (en) | 2020-10-07 |
EP3719385B1 true EP3719385B1 (en) | 2022-04-06 |
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EP20167484.3A Active EP3719385B1 (en) | 2019-04-04 | 2020-04-01 | Electric candle |
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DE (1) | DE202019101941U1 (en) |
DK (1) | DK3719385T3 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20306723U1 (en) | 2003-04-30 | 2003-07-03 | Kuntze, Jan W., 24939 Flensburg | Electric candle without cables or an external power source for Christmas trees comprises a light emitting diode, batteries and a switch accommodated in the candle housing |
DE202005018998U1 (en) | 2005-12-05 | 2006-02-09 | Bensch, Marcus | Electric candle for lighting Christmas tree, has electric circuits to switch-on and/or switch-off LED, and internal battery, where electric circuits have contactless proximity switches with Hall sensor for detecting proximate object |
DE202006005111U1 (en) | 2006-02-09 | 2006-06-01 | Hsu, Wan-Chang, Chung-Li | Electric candle, with a flickering LED operated by an integrated circuit, has a battery charged by induction at a holder in a charging unit using induction coils |
US8021025B2 (en) * | 2009-01-15 | 2011-09-20 | Yeh-Chiang Technology Corp. | LED lamp |
KR101641860B1 (en) * | 2010-05-12 | 2016-07-29 | 엘지이노텍 주식회사 | Light-emitting element array, Backlight apparatus, and Illumination apparatus |
GB2507386B (en) * | 2012-10-26 | 2020-07-15 | Kochanski Jerry | A light bulb, a light bulb holder, and a combination of a light bulb and a light bulb holder |
CN103527964A (en) * | 2013-10-31 | 2014-01-22 | 深圳市中电照明股份有限公司 | Solid LED (light-emitting diode) lamp bulb |
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2019
- 2019-04-04 DE DE202019101941.7U patent/DE202019101941U1/en active Active
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2020
- 2020-04-01 DK DK20167484.3T patent/DK3719385T3/en active
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