WO2014196683A1 - Dispositif d'éclairage à del - Google Patents

Dispositif d'éclairage à del Download PDF

Info

Publication number
WO2014196683A1
WO2014196683A1 PCT/KR2013/006205 KR2013006205W WO2014196683A1 WO 2014196683 A1 WO2014196683 A1 WO 2014196683A1 KR 2013006205 W KR2013006205 W KR 2013006205W WO 2014196683 A1 WO2014196683 A1 WO 2014196683A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat dissipation
heat
led module
led
coupled
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.)
Ceased
Application number
PCT/KR2013/006205
Other languages
English (en)
Korean (ko)
Inventor
정우열
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KHLITEC CO LTD
Original Assignee
KHLITEC CO LTD
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KHLITEC CO LTD filed Critical KHLITEC CO LTD
Publication of WO2014196683A1 publication Critical patent/WO2014196683A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • 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
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/007—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing
    • F21V23/009—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing the casing being inside the housing of the lighting device
    • 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
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • F21V29/673—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans the fans being used for intake
    • 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 present invention relates to an LED lighting device, which can be used universally in various luminaires, and can improve the lighting efficiency of the LED.
  • LEDs are not only compact and have a long life compared to conventional light sources, but also have low power consumption and high energy efficiency because electrical edges are directly converted to light energy.
  • Korean Patent No. 10-0997172 discloses an LED lighting device that efficiently discharges heat generated inside an LED device to improve light efficiency and reliability of the LED device.
  • FIG. 1 is a cross-sectional view of a conventional LED lighting device.
  • the heat sink is formed on the top surface and a flat surface is formed with a plurality of heat radiation fins on the bottom surface;
  • An LED element installed on an upper surface of the heat sink;
  • the electrode pin of the LED element is inserted into the pin insertion hole and the end of the electrode pin is connected to the printed circuit pattern and the solder point formed on the upper surface, and fastened by screwing the screw to the heat sink comprising a PCB substrate spaced apart from the heat sink Is done.
  • a heat dissipation slug formed at the center of the LED element and having a concave LED installation portion, and at least one through hole formed in the LED installation portion;
  • An LED chip installed on an upper surface of the LED installation unit;
  • the electrode is located at the top of the through hole of the LED mounting portion, the pin integrally connected to the head portion is bent in parallel to the outside of the heat dissipation slug through the through hole, and then again bent vertically parallel to the side of the heat dissipation slug Pins;
  • An insulating film formed between the heat dissipating slug and the electrode pin;
  • An insulating plate formed on a lower surface of the electrode pin disposed in parallel to a lower portion of the heat dissipating slug;
  • a bonding wire connecting the LED chip to the head of the electrode pin;
  • a light-transmissive encapsulant sealing the upper portion of the LED mounting portion.
  • the conventional LED lighting device has a limitation in dissipating heat to the outside in a natural convection manner through a heat sink, and is limited to use in various luminaires because a DC current must be supplied from the luminaire, and replacement and maintenance of each component is difficult. There is a difficult problem.
  • the present invention is to solve the above problems, to maximize the heat dissipation effect to increase the lighting efficiency of the LED and can be used universally in various luminaires, easy assembly and disassembly and replacement of each component LED lighting easy to maintain
  • the purpose is to provide a device.
  • the LED lighting apparatus of the present invention a power conversion device for converting an AC current into a DC current; An LED module coupled to one end of the power converter and configured to emit light by receiving a DC current from the power converter; A heat dissipation member coupled to the other end of the power conversion device and dissipating heat generated by the LED module to the outside; And a cooling fan coupled to the heat dissipation member to force convection of air around the heat dissipation member.
  • the LED module is mounted, coupled to the power conversion device, and further comprises a heat transfer member for transferring the heat generated from the LED module to the heat dissipation member.
  • the power conversion device is formed with a through-hole formed through the central portion, the heat transfer member, a mounting portion for mounting the LED module, protruding from the mounting portion is inserted into the through hole, the end is in contact with the heat dissipation member It consists of protrusions.
  • the protrusion and the heat dissipation member are mutually coupled by bolts, and the power conversion device is disposed between the heat transfer member and the heat dissipation member to be integrally assembled with the heat transfer member and the heat dissipation member.
  • the protrusion inserted into the through hole is spaced apart from the power converter.
  • the power conversion device is provided with a mounting groove into which the mounting portion and the LED module are inserted, and a power output port is formed inside the mounting groove, and a power input is provided at a position corresponding to the power output port on the side of the LED module.
  • a port is formed, and when the LED module is inserted into the seating groove, the power output port and the power input port are electrically connected to each other.
  • a coupling member is disposed between the heat dissipation member and the cooling fan to couple the heat dissipation member and the cooling fan to be spaced apart from each other at predetermined intervals.
  • the coupling member includes an inner fixing part coupled to the heat dissipation member and an outer fixing part protruding outward from the inner fixing part to which an outer edge portion of the cooling fan is coupled.
  • the heat dissipation member may include a core disposed at a position coinciding with the center of the cooling fan, and a heat dissipation fin formed radially around the core, wherein the heat dissipation fin is convexly curved in a direction in which the cooling fan rotates.
  • the LED module includes a thermistor which senses an internal temperature and cuts off or drops input power when the temperature reaches a predetermined temperature.
  • LED lighting apparatus according to the present invention has the following effects.
  • LED lighting efficiency can be improved, and it is widely used in various luminaires including power converter which converts AC current into DC current. It is easy and maintenance is easy and convenient because assembly and disassembly of each part and replacement of each part are easy.
  • a through hole is formed in the power conversion device, and a heat transfer member is inserted into the through hole so that heat generated from the LED module can be easily transferred to the heat dissipation member through the heat transfer member.
  • the heat transfer member and the heat dissipation member are mutually coupled by a bolt, and the power conversion device is disposed between the heat transfer member and the heat dissipation member, whereby the power conversion device, the heat transfer member, and the heat dissipation member are easily assembled together.
  • the protrusion inserted into the through hole may be spaced apart from the power converter, thereby minimizing heat transfer to the power converter.
  • a power output port is formed inside the seating recess, and a power input port is formed at the side of the LED module.
  • the power output port and the power input port are electrically connected to each other. And the power supply is easy.
  • the coupling member for coupling the heat radiating member and the cooling fan in a state spaced apart from each other at a predetermined interval between the heat radiating member and the cooling fan is disposed, it is possible to reduce the flow noise of the cooling fan and increase the heat radiating effect.
  • the LED module includes a thermistor to prevent overheating and maintain a constant temperature.
  • FIG. 1 is a cross-sectional view of a conventional LED lighting device
  • FIG. 2 is a perspective view of the LED lighting apparatus according to the embodiment of the present invention.
  • FIG. 3 is an exploded perspective view of the LED lighting apparatus according to the embodiment of the present invention.
  • FIG. 4 is an exploded perspective view of another direction of the LED lighting apparatus according to the embodiment of the present invention.
  • FIG. 5 is a cross-sectional view taken along line A-A of FIG.
  • FIG. 6 is a plan view of the LED lighting apparatus according to the embodiment of the present invention.
  • LED lighting apparatus according to an embodiment of the present invention, as shown in Figure 2 to 6, the power converter 10, the LED module 20, the heat transfer member 30, the heat radiation member 40 and the cooling fan ( 60).
  • the power converter 10 receives power from the outside and converts an AC current into a DC current.
  • the power conversion device 10 is formed in a cylindrical shape, as shown in Figures 2 to 4, the upper case and the lower case is made of a structure that is coupled to form a space therein.
  • a through hole 11 penetrating up and down is formed in a central portion of the power converter 10, and a seating groove 12 in which the LED module 20 is inserted and disposed is formed at a lower portion thereof.
  • the seating recess 12 is formed to be concave upward and communicates with the through hole 11, and a power output port 13 is formed at an inner side thereof to supply a DC current to the LED module 20.
  • the heat transfer member 30 is inserted into the through hole 11 and the seating groove 12.
  • the through hole 11 and the seating groove 12 are formed in a circular shape, the diameter of the seating groove 12 is larger than the diameter of the through hole (11).
  • the power converter 10 is disposed between the heat transfer member 30 and the heat dissipation member 40, the heat transfer member 30 and the heat dissipation member 40 as the heat transfer member 30 and the heat dissipation member 40 are coupled to each other. ) Is assembled integrally.
  • the power converter 10 may be easily assembled by the combination of the heat transfer member 30 and the heat dissipation member 40.
  • the LED module 20 is coupled to one direction of the power converter 10 and receives a DC current from the power converter 10 to emit light.
  • the LED module 20 is mounted to the heat transfer member 30 is inserted into the mounting groove 12 formed in the lower portion of the power conversion device 10.
  • the power input port 21 is formed at a position corresponding to the power output port 13 formed on the inner side of the mounting groove 12 on the side of the LED module 20.
  • the power output port 13 and the power input port 21 are electrically connected to each other so that a DC current from the power converter 10 to the LED module 20 is generated. Supplied.
  • the LED module 20 includes a thermistor (not shown) that senses an internal temperature and cuts or drops an input power when the temperature reaches a predetermined temperature.
  • the LED module 20 may maintain a constant temperature by the thermistor.
  • the heat transfer member 30 is coupled to the power converter 10 and transfers the heat generated by the LED module 20 to the heat dissipation member 40.
  • the heat transfer member 30 is composed of a mounting portion 31 and the protrusion (32).
  • the mounting portion 31 is inserted into the seating groove 12 and the LED module 20 is mounted.
  • the LED module 20 is mounted to the mounting portion 31 is inserted into the mounting groove 12.
  • the mounting part 31 displays the direction in which the power output port 13 is formed (S) to facilitate connection of the power input port 21 and the power output port 13.
  • the protrusion 32 is protruded from the mounting portion 31 is inserted into the through hole 11, the end portion of the protrusion 32 penetrates the through hole 11 and coupled to the upper portion of the power converter 10. Contact with (40).
  • the mounting portion 31 and the protrusion 32 have a circular planar shape, and the diameter of the mounting portion 31 is larger than the diameter of the protrusion 32.
  • the side shape of the heat transfer member 30 is formed in a substantially ' ⁇ ' shape, it can be more surely confirmed in FIG.
  • the protrusion 32 is inserted into the through hole 11 and is mutually coupled with the heat dissipation member 40 by the bolt.
  • the outer circumferential surface of the protrusion 32 inserted into the through hole 11 is spaced apart from the power converter 10.
  • the protrusion 32 does not contact the power converter 10 inside the through hole 11, and a predetermined space G is formed between the power converter 10 and the protrusion 32.
  • the space G is formed about 1 to 2 mm, and prevents the heat of the protrusion 32 from being transferred to the power converter 10.
  • the heat dissipation member 40 is coupled to the other end direction of the power conversion device 10, and emits heat generated from the LED module 20 to the outside.
  • the heat dissipation member 40 is composed of a core 41 and the heat dissipation fin 42 as shown in FIG.
  • the core 41 is disposed at a position coincident with the center of the protrusion 32 and the cooling fan 60, and the bolt B is inserted to engage the protrusion 32.
  • a plurality of heat dissipation fins 42 are radially formed around the core 41, and as shown in FIG. 6, the heat dissipation fins 42 are convexly curved in the direction in which the cooling fan 60 rotates.
  • a coupling member 40 is disposed between the heat dissipation member 40 and the cooling fan 60 to couple the heat dissipation member 40 and the cooling fan 60 to each other at predetermined intervals.
  • Coupling member 40 maintains the gap between the heat radiating member 40 and the cooling fan 60 to about 8 ⁇ 10mm to increase the flow noise and heat radiation effect of the cooling fan 60.
  • the coupling member 40 includes an inner fixing part 51 and an outer fixing part 52 protruding in all directions from the inner fixing part 51. It is formed into a shape.
  • the inner fixing portion 51 is coupled to a position adjacent to the core 41 of the heat dissipation member 40, and the outer fixing portion 52 is coupled to an outer edge portion (rubber case 61) of the cooling fan 60. .
  • the cooling fan 60 is coupled to the upper portion of the heat dissipation member 40 to force convection of air around the heat dissipation member 40.
  • the cooling fan 60 is coupled to the heat dissipation member 40 by the coupling member 40, and the heat dissipation fins 42 rotate in a convexly curved direction.
  • air around the heat dissipation member 40 is raised by the cooling fan 60, and heat is discharged to the outside as air flows between the heat dissipation fins 42.
  • the cooling fan 60 includes a rubber case 61 (rubber case) surrounding the outside, and can reduce vibration friction noise caused by the rotation of the cooling fan 60.
  • the rubber case 61 is a part that is coupled to the outer fixing part 52 of the coupling member 40.
  • the protrusion 32 of the heat transfer member 30 is inserted into the lower portion of the through hole 11, and the heat dissipation member 40 is disposed on the upper portion of the power converter 10, and then the protrusions are formed using the bolts B. 32) and the heat dissipation member 40 are assembled.
  • the inner fixing part 51 is coupled to the heat dissipation member 40
  • the cooling fan 60 is coupled to the outer fixing part 52 to assemble the heat dissipation member 40 and the cooling fan 60.
  • the coupling of the coupling member 40, the heat dissipation member 40, the cooling fan 60 uses a general fastening member such as a screw.
  • a power connector 62 protrudes from the cooling fan 60, and the power connector 62 passes between the heat dissipation fins 42 and is connected to the power converter 10, and the cooling fan 60 is connected to the power converter.
  • the LED module 20 is mounted on the mounting part 31 to be inserted into the seating groove 12.
  • the power output port 13 formed on the inner surface of the seating groove 12 and the power input port 21 formed on the outside of the LED module 20 are electrically connected to each other to directly connect the LED module 20 to the DC module 20. Current is supplied.
  • the position of the power output port 13 is displayed on the bottom surface of the mounting portion 31 inserted into the seating groove 12, so that the power output port 13 and the power output port 13 are inserted when the LED module 20 is inserted into the seating groove 12.
  • the position of the power input port 21 can be easily adjusted.
  • the LED lighting device assembled as described above includes a power supply for converting an AC current into a DC current, so that the LED lighting device can be used in various luminaires regardless of the input power.
  • the LED module 20 the heat dissipation member 40, and the cooling fan 60 can be easily released, thereby effectively improving the LED efficiency.
  • each part can be replaced with a new part, which is easy to maintain.
  • the heat generated when the LED module receives light from the power converter 10 is transmitted to the mounting part 31 on which the LED module 20 is mounted.
  • the heat is transmitted to the heat dissipation member 40 through the protrusion 32, and the protrusion 32 inserted into the through hole 11 is spaced apart from the power converter 10, so that the protrusion 32 is disposed. It is possible to minimize the heat transfer to the power converter 10.
  • cooling fan 60 is operated to form a flow of air rising between the heat dissipation fins 42 so that heat is effectively released to the outside.
  • the heat generated by the LED module 20 is transferred to the heat dissipation member 40 through the heat transfer member 30, and the forced convection is generated around the heat dissipation member 40 by the cooling fan 60, thereby dissipating heat. Maximized.
  • the LED lighting apparatus of the present invention is not limited to the above-described embodiments, and may be variously modified and implemented within the range in which the technical idea of the present invention is permitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

La présente invention concerne un dispositif d'éclairage à DEL qui peut être utilisé universellement dans divers appareils d'éclairage à DEL et qui peut améliorer le rendement des DEL. Le dispositif d'éclairage à DEL selon la présente invention comprend : un dispositif de conversion de puissance permettant de convertir du courant alternatif en courant continu; un module de DEL, couplé à une extrémité du dispositif de conversion de puissance, pour émettre de la lumière lors de la réception du courant alternatif du dispositif de conversion de puissance ; un élément de dissipation de chaleur, couplé à l'autre extrémité du dispositif de conversion de puissance, pour dissiper vers l'extérieur la chaleur générée par le module de DEL ; et un ventilateur de refroidissement, couplé à l'élément de dissipation de chaleur, pour forcer l'air autour de l'élément de dissipation de chaleur en convection.
PCT/KR2013/006205 2013-06-03 2013-07-11 Dispositif d'éclairage à del Ceased WO2014196683A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20130063411 2013-06-03
KR10-2013-0063411 2013-06-03

Publications (1)

Publication Number Publication Date
WO2014196683A1 true WO2014196683A1 (fr) 2014-12-11

Family

ID=52008304

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2013/006205 Ceased WO2014196683A1 (fr) 2013-06-03 2013-07-11 Dispositif d'éclairage à del

Country Status (1)

Country Link
WO (1) WO2014196683A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117948583A (zh) * 2024-02-21 2024-04-30 泰州诚影舞台设备科技有限公司 一种舞台用观赏性灯光设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100246178A1 (en) * 2009-03-31 2010-09-30 Heatron, Inc. Thermal Management For LED Lighting
JP3169380U (ja) * 2011-05-17 2011-07-28 奇▲こう▼科技股▲ふん▼有限公司 Ｌｅｄ灯具用ヒートシンク構造
KR200457530Y1 (ko) * 2009-10-01 2011-12-22 박이현 결합형 엘이디 조명기기
KR101117755B1 (ko) * 2010-06-29 2012-03-16 이석길 엘이디 조명의 방열장치
US20130114260A1 (en) * 2011-11-09 2013-05-09 Cree, Inc. Led light with active thermal management

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100246178A1 (en) * 2009-03-31 2010-09-30 Heatron, Inc. Thermal Management For LED Lighting
KR200457530Y1 (ko) * 2009-10-01 2011-12-22 박이현 결합형 엘이디 조명기기
KR101117755B1 (ko) * 2010-06-29 2012-03-16 이석길 엘이디 조명의 방열장치
JP3169380U (ja) * 2011-05-17 2011-07-28 奇▲こう▼科技股▲ふん▼有限公司 Ｌｅｄ灯具用ヒートシンク構造
US20130114260A1 (en) * 2011-11-09 2013-05-09 Cree, Inc. Led light with active thermal management

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117948583A (zh) * 2024-02-21 2024-04-30 泰州诚影舞台设备科技有限公司 一种舞台用观赏性灯光设备

Similar Documents

Publication Publication Date Title
CN102797998B (zh) 照明装置
WO2013100308A1 (fr) Appareil d'éclairage à semi-conducteur optique
WO2013047929A1 (fr) Dispositif d'éclairage à diodes électroluminescentes (led)
WO2012030112A1 (fr) Appareil d'éclairage à led
WO2011111958A2 (fr) Appareil de refroidissement pour lampe à diodes électroluminescentes
WO2013032225A2 (fr) Lampe sphérique avec dissipation de chaleur facile
WO2010038982A2 (fr) Dispositif dissipateur de chaleur et dispositif d'éclairage par del en forme d'ampoule utilisant celui-ci
EP2337996A2 (fr) Appareil électroluminescent
WO2011155688A2 (fr) Dispositif d'éclairage
WO2013125803A1 (fr) Dispositif d'éclairage à diodes électroluminescentes et système d'éclairage à diodes électroluminescentes qui comprend ce dernier
WO2013005971A2 (fr) Dispositif d'éclairage
WO2016003232A1 (fr) Appareil d'éclairage à del
WO2010038983A2 (fr) Dispositif dissipateur thermique en spirale et dispositif d'éclairage par del en forme d'ampoule utilisant celui-ci
WO2011065705A2 (fr) Système d'éclairage et appareil d'éclairage le comprenant
WO2011040671A1 (fr) Appareil d'éclairage à diodes électroluminescentes
WO2009096742A4 (fr) Structure thermique rayonnante pour del électrique de type broche
WO2016032038A1 (fr) Réverbère à del
WO2011059268A2 (fr) Appareil d'éclairage à del du type ampoule électrique
WO2011078505A2 (fr) Module de diodes électroluminescentes avec passage de refroidissement
WO2013085244A1 (fr) Appareil d'éclairage à diodes électroluminescentes (del)
WO2016108639A1 (fr) Dispositif d'éclairage à del couplé directement à une unité d'alimentation électrique
WO2012050318A2 (fr) Lampe à led capable d'une connexion amovible
WO2016148503A1 (fr) Dispositif d'éclairage à led
WO2011030949A1 (fr) Lampe à diode électroluminescente
WO2010079916A2 (fr) Ampoule d'éclairage à plusieurs del distinctes

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13886479

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13886479

Country of ref document: EP

Kind code of ref document: A1