EP2483593A1 - Lamp having a variable substrate as a base for a light source - Google Patents
Lamp having a variable substrate as a base for a light sourceInfo
- Publication number
- EP2483593A1 EP2483593A1 EP10779685A EP10779685A EP2483593A1 EP 2483593 A1 EP2483593 A1 EP 2483593A1 EP 10779685 A EP10779685 A EP 10779685A EP 10779685 A EP10779685 A EP 10779685A EP 2483593 A1 EP2483593 A1 EP 2483593A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mounting substrate
- lamp
- lamp according
- led
- lampshade
- 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.)
- Granted
Links
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
- F21V23/002—Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
-
- 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
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/86—Ceramics or glass
-
- 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 a lamp for receiving at least one LED as a light source, with a lower part as a supporting element and for supplying the electrical connection wires to a mounting device carrying the at least one LED, and with a lampshade.
- Ceramic lamps are optimally designed according to the current state for a specific light source (LED, fluorescent tube, filament). As a result, the required heat dissipation is firmly designed. Disadvantage is that for each variant of the actual light source, a redesign of the lamp necessary and the production becomes inflexible. Hardly any components of the different lamps can be interchanged.
- FIG. 2 shows such a lamp according to the prior art.
- the lamp for receiving an LED as a lighting means consists of a lower part 1 as a lamp base and support member for the LED and for supplying the electrical connection wires to the LED.
- the mounting device for the LED is integrated in the lower part 1 or in the lamp base and consists of a tungsten-nickel receiving region 14, to which the LED is soldered.
- a lampshade 3 surrounds the LED.
- the disadvantage of this lamp is that only by a redesign the lamp can be adapted to different light sources with different heat development.
- the lamp base consists of a single ceramic, so that when changing the material due to better heat conduction or design reasons, always the entire lamp base adopts the color of the new ceramic and so no individual adjustments to the
- CONFIRMATION COPY various color designs of the lampshade is possible.
- the color of the lamp cap is hardly to be varied as a technically preferred material and, for example, adapted to a brightly colored lampshade.
- the mounting device is a separate mounting substrate with a breaking strength between 100 and 1000 MPa
- the material of the mounting substrate has a thermal conductivity between 10 and 250 W / m ° K and the mounting substrate is arranged on the lower part
- the technical requirements are met or can be fulfilled and at the same time the lower part or the lamp base can be adapted to the most diverse materials or design requirements.
- the production is flexible and components of the various lamps can be exchanged with each other.
- At least one metallization region for soldering the LED is preferably applied to the mounting substrate.
- This Metallization region consists in one embodiment of tungsten-nickel, wherein the metallization regions are made of tungsten and are chemically nickel-plated.
- the material of the mounting substrate has a thermal conductivity between 20 and 200 W / m ° K.
- the mounting substrate preferably consists of a ceramic. Ceramics can have excellent thermal conductivity and high resistance to breakage. They are therefore ideal for a mounting substrate.
- the surface of the ceramic substrate preferably includes sintered metallization regions for soldering the LED (s).
- feedthroughs for the electrical connection wires are arranged in the mounting substrate. These connecting wires are electrically conductively connected to the metallization regions.
- the mounting substrate is a disc-shaped mounting plate. Slices are easy to produce and are also easy to arrange on the base. LEDs can be easily soldered to mounting washers, as the surfaces are flat.
- the lamp consists of three modular ceramic parts, namely the lower part, the mounting substrate and the lampshade.
- the lampshade has on its outer surface longitudinally extending ribs which increase the surface area for cooling. Ceramics can be produced in a wide variety of colors, so that the lampshade can be adapted to individual design specifications. This also applies to the lower part as a lamp base.
- the mounting substrate is not visible from the outside, so that its ceramic can be adapted exclusively to the technical requirements. The color of the mounting substrate is not important because it is not visible from the outside.
- the lower part is cylindrical with an inner cavity and two end faces, wherein the first end face is closed and having passages or connecting elements for the connecting wires and the second end face is closed by the mounting substrate.
- the mounting substrate forms in this embodiment, the closure of the lower part, whereby material is saved and at the same time an optimal fit of the mounting substrate is given.
- the outer upper end of the lower part facing the mounting substrate preferably has a radially projecting shoulder on which the lampshade is seated and surrounds the outer upper end of the lower part.
- Base and lampshade form a unit and can be easily attached to each other.
- the mounting substrate has on its outer circumference on a radial indentation, on which a shoulder of the lampshade is seated and engages around the mounting substrate.
- the mounting substrate is thereby firmly anchored.
- the mounting substrate can also be connected to the other parts of the lamp by means of a screw connection, adhesive bonding or a bayonet closure.
- the mounting substrate can also be mechanically and / or chemically bonded (gluing, active soldering, glass soldering, metallizing or soldering) to the other parts of the lamp.
- the lampshade completely surrounds the mounting substrate, so that it is not visible from the outside. Only this hiding inside the lamp makes it possible to select the ceramics exclusively according to the technical requirements and not according to design wishes.
- the mounting substrate consists of highly heat-conductive aluminum nitride AIN. With aluminum nitride, the technical requirements of breaking strength and thermal conductivity are best fulfilled.
- the lampshade in a preferred embodiment is ruby-colored alumina with chromium oxide doping.
- all or some of the ceramic parts of the lamp made of alumina, glassy or pure, with or without additives, such as Cr203 as an additive, having a thermal conductivity of 20 to 40 W / m ° K, or aluminum nitride with a thermal conductivity of 160 to 200 W. / m ° K.
- all or some of the ceramic parts of the lamp are made of a transparent, transparent, translucent or translucent ceramic.
- the connecting wires are guided through the cavity in the lower part to the mounting substrate and are there electrically connected to the mounting substrate or directly to the LED.
- the lamp is preferably a base GU10 lamp.
- the invention also relates to a mounting substrate for a lamp according to one of claims 1 to 15.
- a lamp with replaceable mounting substrate for the light source is presented.
- This mounting substrate can be varied in material (different thermal conductivity) and strength and adapted to the dissipated amount of heat of the light source. With the help of a screw connection, bonding, bayonet closure or the like, the mounting substrate with the remaining parts of the lamp body mechanically and / or chemically (bonding, active soldering, glass soldering, metallizing and soldering) connected.
- This mounting substrate can also made of other material (other ceramic, metal, etc.) than the other (visible) lamp parts and also be different in color, because, for example, alumina can be strongly colored by doping, the attractive because of its good thermal conductivity as a mounting substrate but gray aluminum nitride not. Inside the lamp, however, it is not visible and only has to fulfill its technical purpose.
- the substrate itself can be produced by the known methods of molding such as dry pressing, injection molding in the case of ceramics, by melting glass to metal in the case of enameled metal, injection molding in the case of plastic, etc.
- FIG. 3 shows a ceramic substrate 4 according to the invention.
- a base GU10 lamp according to the invention consists of a lower part 1 with power supply 2, lampshade 3 and adhesive mounting substrate 4.
- the mounting substrate 4 is in this example a mounting plate for the LED and consists of unattractive gray fructiqueleitInBoxem AIN, the lampshade 3 of ruby-colored alumina with Chromoxiddot mich , The mounting substrate 4 is not visible.
- the lamp body or lampshade 3 is closed with a glass pane (not shown) at the upper end of the lampshade 3.
- On the surface of the ceramic substrate 4 is preferably sintered metallization regions 15 are arranged for soldering the or the LED / LED 's.
- bushings 16 or plug elements for the electrical connecting wires are arranged in the mounting substrate.
- connecting wires are electrically conductively connected to the metallization regions 15.
- the mounting substrate 4 has a radial indentation 13 on the circumferential surface facing the metallization region 15 for better fixation.
- the lamp is modularly formed from three ceramic parts, namely a lower part 1 with a power supply 2, a mounting substrate 4 or mounting plate and a lampshade 3.
- a power supply 2 for example, electrical connection wires (not shown in the FIG.)
- the mounting substrate 4 consists of a ceramic with preferably a high heat dissipation.
- a light source or a plurality of light sources are attached.
- LEDs are preferably used.
- the lampshade 3 is also preferably made of a ceramic with cooling fins 5 on its outer surface. The cooling fins 5 extend in the longitudinal direction of the lampshade third
- mounting substrate is the more general term, since the mounting substrate is only a mounting plate.
- the mounting substrate may also not be disc-shaped. Otherwise both terms describe the same item.
- the lampshade 3 For better attachment of the lampshade 3 on the lower part 1, this has on its inner surface a paragraph 8, with which the lampshade 3 is seated on a corresponding paragraph or indentation 13 on the mounting substrate 4.
- the lower end of the lampshade 3 surrounds the mounting substrate 4 and the upper end 12 of the lower part 1.
- the mounting substrate 4 is arranged between the lampshade 3 and the lower part 1, that it is not visible from the outside.
- the upper, the mounting plate 4 facing away from the end of the lampshade 3 has an inner shoulder 6 for receiving a glass.
- the lower part 1 is formed cylindrically with an inner cavity 7. This saves material.
- the lamp according to the invention thus consists of a lower part 1, a mounting plate 4 and a lampshade 3, which surrounds the light source, preferably an LED. On the mounting substrate 4, the light source is attached.
- the lampshade 3 which surrounds the LED (light source), has three functions. It protects the LED from damage and its color design influences the color of the emitted light. In the main, however, it serves as a heat sink, ie for heat dissipation of the heat generated by the LED to the ambient air.
- To increase the surface of the lampshade distributed on its circumference structures may have, such as cooling fins 5, whose cross sections may have any shape.
- the shape of the lampshade 3 can be arbitrary. It can be round, for example polygonal, oval or elliptical.
- the lampshade 3 may be glued to the lower part 1 or otherwise firmly connected.
- the material of the lamp must be heat resistant.
- a particularly suitable material for the lamp is a ceramic material with a good thermal conductivity, for example alumina, glass-containing or pure, with or without additives, for example Cr 2 O 3, with a thermal conductivity of 20 to 40 W / m ° K, or aluminum nitride with a thermal conductivity of 160 to 200 W / m ° K.
- the material may be transparent or translucent translucent.
- the breaking strength of the ceramic materials is preferably between 100 and 1000 MPa.
- the basic color of the ceramic material is white or glassy clear.
- known from the prior art additives for ceramic material of the ceramic material may also be colored.
- Combinations of LEDs that emit white or colored light with the corresponding ceramic material can produce different color effects become.
- the screen may have a translucent cover of the LED, which may be clear or colored. The following color combinations are possible:
- the light of the LED has the basic color white, the ceramic material is white or glassy.
- the light of the LED has the basic color white, the ceramic material is colored.
- the light of the LED is colored, the ceramic material is white or glassy.
- the light of the LED is colored, the ceramic material is colored.
- the light of the LED has the basic color white, the ceramic material is white or glassy and the cover over the LED is colorless.
- the light of the LED has the basic color white, the ceramic material is white or glassy and the cover over the LED is colored.
- the light of the LED has the basic color white, the ceramic material is colored and the cover over the LED is colorless. - The light of the LED is colored, the ceramic material is white or glassy and the cover over the LED is colorless.
- the light of the LED is colored, the ceramic material is colored and the cover over the LED is colorless.
- the light of the LED is colored, the ceramic material is colored and the cover over the LED is colored.
- the lower part 1 can also be used as a plug for the production of connectors with appropriate sockets or threads for screwing in brackets or, in the case of sockets with connecting poles, in lamp sockets.
- the lampshade 3 has on its circumference evenly distributed cooling fins 5, so that the outline of the lampshade 3 looks at its opening like a gear.
- the cooling fins 5 are, in particular in high-power LEDs, an advantage to dissipate the heat generated to the ambient air. Its cross section can take any other possible form such as semicircular or semi-elliptical. For LEDs with low heat loss, the screen can also be smooth. The screen may also have different shapes, such as oval or polygonal.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Led Device Packages (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL10779685T PL2483593T3 (en) | 2009-09-30 | 2010-09-30 | Lamp with variable substrate as base for the lightsource |
SI201030629T SI2483593T1 (en) | 2009-09-30 | 2010-09-30 | Lamp with variable substrate as base for the lightsource |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009045162 | 2009-09-30 | ||
PCT/EP2010/005957 WO2011038909A1 (en) | 2009-09-30 | 2010-09-30 | Lamp having a variable substrate as a base for a light source |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2483593A1 true EP2483593A1 (en) | 2012-08-08 |
EP2483593B1 EP2483593B1 (en) | 2014-03-05 |
Family
ID=43532812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10779685.6A Not-in-force EP2483593B1 (en) | 2009-09-30 | 2010-09-30 | Lamp with variable substrate as base for the lightsource |
Country Status (16)
Country | Link |
---|---|
US (1) | US8410692B2 (en) |
EP (1) | EP2483593B1 (en) |
JP (1) | JP2013506940A (en) |
KR (1) | KR20120092616A (en) |
CN (1) | CN102695907A (en) |
BR (1) | BR112012007235A2 (en) |
DE (1) | DE102010047030A1 (en) |
DK (1) | DK2483593T3 (en) |
ES (1) | ES2469095T3 (en) |
HK (1) | HK1174088A1 (en) |
PL (1) | PL2483593T3 (en) |
PT (1) | PT2483593E (en) |
RU (1) | RU2012117415A (en) |
SI (1) | SI2483593T1 (en) |
TW (1) | TW201116753A (en) |
WO (1) | WO2011038909A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140022784A1 (en) | 2011-04-04 | 2014-01-23 | Ceram Tec Gmbh | Led lamp comprising an led as the luminaire and a glass or plastic lampshade |
US10225898B2 (en) * | 2014-06-17 | 2019-03-05 | Philips Lighting Holding B.V. | Dynamic control circuit |
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US5272408A (en) * | 1991-05-09 | 1993-12-21 | Gte Products Corporation | Lamp and reflector assembly |
DE69130738T2 (en) | 1991-04-03 | 1999-09-02 | Flowil Int Lighting | REFLECTOR WITH LAMP |
US5367219A (en) | 1991-11-18 | 1994-11-22 | U.S. Philips Corporation | Electric reflector lamp for use with IEC standard |
EP0551647B1 (en) | 1991-12-26 | 1997-12-03 | Gte Products Corporation | Reflector lamp utilizing lens bonded with solder glass and method of making the same |
JPH0686359U (en) * | 1993-05-31 | 1994-12-13 | オプトニクス株式会社 | LED lamp |
US6194352B1 (en) * | 1994-01-28 | 2001-02-27 | American Superconductor Corporation | Multifilament composite BSCCO oxide superconductor |
DE19539808C2 (en) | 1995-10-26 | 1999-12-02 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Luminaire for a low-voltage incandescent lamp |
DE19539809B4 (en) | 1995-10-26 | 2004-07-22 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Luminaire for a low-voltage incandescent lamp |
DE29620098U1 (en) | 1996-11-20 | 1998-03-19 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Halogen lamp |
JP3503551B2 (en) * | 1999-11-30 | 2004-03-08 | 日亜化学工業株式会社 | Light emitting diode |
DE20102325U1 (en) | 2001-02-08 | 2001-04-26 | Missal Objekt Licht | Illuminant |
DE10233073B3 (en) | 2002-07-19 | 2004-02-12 | Sli Lichtsysteme Gmbh | reflector lamp |
US20040264196A1 (en) | 2003-06-30 | 2004-12-30 | Kuo-Fen Shu | LED spotlight (type I) |
US7675075B2 (en) | 2003-08-28 | 2010-03-09 | Panasonic Corporation | Semiconductor light emitting device, light emitting module, lighting apparatus, display element and manufacturing method of semiconductor light emitting device |
DE102004004651B3 (en) | 2004-01-29 | 2005-12-01 | Flowil International Lighting (Holding) B.V. | Lamp for general lighting purposes |
JP2006024595A (en) * | 2004-07-06 | 2006-01-26 | Tokuyama Corp | Package for housing light emitting device |
DE102006022133A1 (en) | 2006-05-11 | 2007-11-15 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | reflector lamp |
US20070159420A1 (en) | 2006-01-06 | 2007-07-12 | Jeff Chen | A Power LED Light Source |
TWM303486U (en) * | 2006-03-30 | 2006-12-21 | Ching Huei Ceramics Co Ltd | Lamp heat dissipation base structure |
CN201014338Y (en) * | 2006-07-12 | 2008-01-30 | 陈榕锦 | Split combination type energy conserving lamp cup |
DE202006014239U1 (en) | 2006-09-18 | 2006-12-21 | Richter, Markus | Light comprises LED chip and commercial base to operate a reflector lamp or halogen lamp and a cold light mirror reflector with LED carrier opposite to the reflector |
US7942556B2 (en) * | 2007-06-18 | 2011-05-17 | Xicato, Inc. | Solid state illumination device |
DE202008007159U1 (en) | 2008-05-28 | 2008-08-07 | Best Light Production Limited | Energy saving lamp |
JP2010021202A (en) * | 2008-07-08 | 2010-01-28 | Ushio Inc | Light emitting device |
JP4836095B2 (en) * | 2008-07-30 | 2011-12-14 | トヨタ自動車株式会社 | Fuel saving driving diagnosis device, in-vehicle system and fuel saving driving diagnosis program |
DE202008011023U1 (en) | 2008-08-19 | 2008-10-16 | Tischlerei-Innenausbau GmbH Amstätter | Lamp with a reflector |
JP2012503285A (en) | 2008-09-22 | 2012-02-02 | セラムテック ゲゼルシャフト ミット ベシュレンクテル ハフツング | Lamp having at least one light emitting diode |
-
2010
- 2010-09-21 TW TW099131961A patent/TW201116753A/en unknown
- 2010-09-30 US US13/496,906 patent/US8410692B2/en not_active Expired - Fee Related
- 2010-09-30 DE DE102010047030A patent/DE102010047030A1/en not_active Withdrawn
- 2010-09-30 WO PCT/EP2010/005957 patent/WO2011038909A1/en active Application Filing
- 2010-09-30 SI SI201030629T patent/SI2483593T1/en unknown
- 2010-09-30 EP EP10779685.6A patent/EP2483593B1/en not_active Not-in-force
- 2010-09-30 KR KR1020127011303A patent/KR20120092616A/en not_active Application Discontinuation
- 2010-09-30 DK DK10779685.6T patent/DK2483593T3/en active
- 2010-09-30 ES ES10779685.6T patent/ES2469095T3/en active Active
- 2010-09-30 PL PL10779685T patent/PL2483593T3/en unknown
- 2010-09-30 PT PT107796856T patent/PT2483593E/en unknown
- 2010-09-30 BR BR112012007235A patent/BR112012007235A2/en not_active IP Right Cessation
- 2010-09-30 CN CN2010800450094A patent/CN102695907A/en active Pending
- 2010-09-30 JP JP2012531282A patent/JP2013506940A/en not_active Ceased
- 2010-09-30 RU RU2012117415/07A patent/RU2012117415A/en not_active Application Discontinuation
-
2013
- 2013-01-29 HK HK13101216.1A patent/HK1174088A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP2013506940A (en) | 2013-02-28 |
EP2483593B1 (en) | 2014-03-05 |
DE102010047030A1 (en) | 2011-05-12 |
US20120262059A1 (en) | 2012-10-18 |
BR112012007235A2 (en) | 2016-04-05 |
KR20120092616A (en) | 2012-08-21 |
PL2483593T3 (en) | 2014-11-28 |
SI2483593T1 (en) | 2014-10-30 |
PT2483593E (en) | 2014-05-12 |
DK2483593T3 (en) | 2014-05-19 |
CN102695907A (en) | 2012-09-26 |
RU2012117415A (en) | 2013-11-10 |
ES2469095T3 (en) | 2014-06-17 |
HK1174088A1 (en) | 2013-05-31 |
US8410692B2 (en) | 2013-04-02 |
WO2011038909A1 (en) | 2011-04-07 |
TW201116753A (en) | 2011-05-16 |
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