WO2015060475A1 - Dispositif d'éclairage à del refroidi par eau et lampadaire l'utilisant - Google Patents

Dispositif d'éclairage à del refroidi par eau et lampadaire l'utilisant Download PDF

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Publication number
WO2015060475A1
WO2015060475A1 PCT/KR2013/009518 KR2013009518W WO2015060475A1 WO 2015060475 A1 WO2015060475 A1 WO 2015060475A1 KR 2013009518 W KR2013009518 W KR 2013009518W WO 2015060475 A1 WO2015060475 A1 WO 2015060475A1
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WO
WIPO (PCT)
Prior art keywords
substrate
heat medium
casing
circulation
led
Prior art date
Application number
PCT/KR2013/009518
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English (en)
Korean (ko)
Inventor
박일권
Original Assignee
박일권
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 박일권 filed Critical 박일권
Priority to PCT/KR2013/009518 priority Critical patent/WO2015060475A1/fr
Publication of WO2015060475A1 publication Critical patent/WO2015060475A1/fr

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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
    • F21V29/56—Cooling arrangements using liquid coolants
    • F21V29/59—Cooling arrangements using liquid coolants with forced flow of the coolant
    • 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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/04—Fastening of light sources or lamp holders with provision for changing light source, e.g. turret

Definitions

  • the present invention relates to a luminaire using an LED, and more particularly, to a water-cooled LED lighting device for radiating heat by circulating a liquid heat medium and heat-exchanging, and a street lamp using the same.
  • All LED bulbs currently provided have their own heat dissipation means.
  • Current widely used heat dissipation methods include heat dissipation fins to increase the heat exchange area with the atmosphere, coating with heat dissipation paints containing carbon particles, and using high heat transfer materials such as aluminum.
  • the above object is a substrate having a plurality of LED (LED) device mounted on the upper surface;
  • a light bulb body including a substrate casing for supporting a substrate and forming an accommodating space for accommodating a liquid heat medium, and a power supply for supplying power to the LED element;
  • a heat medium circulating unit configured to circulate a heat medium accommodated in the substrate casing so that heat exchange occurs between the substrate and the heat medium;
  • a water-cooled LED lighting device comprising a support for hanging the bulb body and the heat medium circulation unit on the ceiling, air or wall or on the floor.
  • the heat medium circulation portion
  • both ends Being a pipe of the heating medium, both ends are connected to the receiving space inside the substrate casing, the middle portion of the circulation tube extending to a position spaced apart from the substrate casing;
  • a circulation pump installed on the circulation tube to provide power for forced circulation of the heat medium;
  • the circulation pump is installed in a pump casing installed at a position spaced apart from the bulb body;
  • the circulation tube may extend to pass through the pump casing.
  • the heat medium guide means for allowing the heat medium introduced into the receiving space to be guided in one direction and flow out to the substrate casing.
  • the LED lighting device is such that the rotational speed of the circulation pump can be varied according to the temperature of the substrate;
  • the apparatus may further include a controller for controlling the circulation pump according to the temperature sensor and the measured temperature.
  • the heat medium is a non-conductive liquid
  • the substrate is installed in the receiving space of the substrate casing;
  • the substrate and the heat medium may be in direct contact with each other to exchange heat.
  • the heat medium may be a fluoride ketone (CF 3 CF 2 (O) CF (CF 3 ) 2 , Perflouroketone).
  • the power supply is installed at the end of the power supply line that extends from the outside, the cylindrical socket is formed on the inner peripheral surface;
  • One end may be connected to the plug, and the other end may include a conductive wire connected to the substrate through the substrate casing to separate the precursor body from the support and the heat medium circulation part.
  • a plurality of LED (LED) device is mounted on the upper surface;
  • a substrate casing coupled to the substrate, the substrate casing having an accommodation space for accommodating a liquid heat medium therebetween;
  • a heat medium supply unit for circulating and supplying a liquid heat medium to the inside of the receiving space of the substrate casing;
  • a cooling fan for cooling the heat medium discharged through the accommodation space;
  • a street lamp having a water-cooled cooling means comprising a; a casing having a holding portion for connecting the substrate casing, the heat medium supply portion and the cooling fan and the holding portion for connecting to the support of the street lamp.
  • the heat medium is a non-conductive liquid, may be fluoride ketone (CF 3 CF 2 (O) CF (CF 3 ) 2 , Perflouroketone).
  • the gap between the substrate and the opening of the substrate casing is to be filled by the diaphragm;
  • a substrate groove into which the substrate is inserted is provided in the middle of the diaphragm, and a bolt fitting hole is provided around the substrate groove;
  • the edge of the diaphragm may be fixed by a case fixing bolt to the edge of the substrate casing.
  • a guide for guiding the flow of the heat medium may be formed in the substrate casing.
  • it may further include a temperature sensor so that the rotation speed of the pump can be changed according to the temperature of the substrate.
  • a pair of support rods fixed to the casing by a bracket may further include a pair of cylindrical sleeves formed on the substrate casing to be fitted to the support bar.
  • the heat dissipation performance of the LED bulb can be extremely improved.
  • the LED bulb body reaches the end of its life, it can be replaced with a new one, thereby reducing the maintenance cost.
  • street lamps with stable functions are provided.
  • FIG. 1 is a schematic perspective view of a water-cooled LED lighting apparatus according to an embodiment of the present invention.
  • FIG. 2 is a schematic perspective view of a light bulb body of a water-cooled LED lighting apparatus according to an embodiment of the present invention.
  • FIG 3 is a cross-sectional view of a water-cooled LED lighting apparatus according to an embodiment of the present invention
  • Figure 4 is a cross-sectional view of the main part of the light bulb body.
  • FIG. 5 is a bottom perspective view of a light bulb body according to an embodiment of the present invention.
  • FIG. 6 is a bottom exploded perspective view of a substrate casing according to an embodiment of the present invention.
  • FIG. 7 is a schematic bottom perspective view of a street lamp according to an embodiment of the present invention
  • Figure 8 is an exploded perspective view thereof.
  • FIG. 9 is a schematic cross-sectional view taken along the line A-A of FIG.
  • FIG. 10 is a schematic cross-sectional view taken along the line B-B in FIG. 7.
  • FIG. 11 is a plan configuration diagram of a street lamp according to an embodiment of the present invention.
  • FIG. 12 is a perspective view of a substrate casing of a street lamp according to an embodiment of the present invention
  • FIG. 13 is an exploded perspective view thereof.
  • FIGS. 1 to 2 Basic reference is made to FIGS. 1 to 2, but if necessary, the drawings of FIGS. 3 to 6 will be referred to.
  • a plurality of LED (LED) elements 3 are mounted on the upper surface of the substrate 1, and such a structure is commonly referred to as a chip on board (COB).
  • COB chip on board
  • the number of substrates 1 to the number of LED elements 3 mounted on one substrate 1 will depend on the rated capacity of the illumination and will be provided in various ways.
  • the bulb body 5 includes a substrate casing 7 capable of supporting the substrate 1 and accommodating a liquid heat medium, and a power supply unit for supplying power to the LED element 3.
  • the flat cylindrical substrate casing 7 may include a heat sink 9 and a cover plate 11 as main components of the bulb body 5.
  • the cover plate 11 is assembled and fixed to the heat sink 9 through the packing.
  • the heat sink 9 is made of a cylindrical body to form a receiving space (S) that can contain the liquid heat medium.
  • a plurality of heat dissipation fins 13 may be formed on the rear surface of the heat dissipation plate 9 to enhance the cooling effect.
  • the bulb body 5 of the present invention has a structure for maximally suppressing heat transfer from the substrate casing 7 serving as a high temperature portion to other components as heat is generated. As shown, most of the surface area of the substrate casing 7 is in contact with the atmosphere. At the center of the heat sink 13 of the substrate casing 7 is a post 15 in the form of a pipe. A rod-shaped plug 17 is provided at the upper end of the post 15. As will be described later, the plug 17 corresponds to a power supply unit for supplying power to the substrate 1. The upper end of the post 15 is provided with a plug mount 19 for installing the plug 17.
  • a plurality of supports 21 are provided along the circumferential direction of the substrate casing 7.
  • the support 21 is radially installed and has a form in which a wire rod or rod made of aluminum is bent like an S letter. This is for aesthetics, there may be various shape modifications other than those shown.
  • the heat medium circulation part is a device that causes heat exchange between the substrate casing 7 and the heat medium by circulating the heat medium accommodated in the substrate casing 7.
  • the heat medium circulation part includes a circulation tube 23 through which the heat medium flows and a circulation pump 25 for forced circulation.
  • One end of the circulation tube 23 is connected to the liquid inlet 27 of the substrate casing 7, and is spaced apart from the precursor body 5 so that the circulation tube 23 is in a relatively low temperature state, that is, a pump, with respect to the precursor body 5.
  • the other end stays in the casing 29 and is connected to the liquid outlet 31.
  • the circulation pump 25 is installed in the middle of the circulation tube 23 to force circulation of the heat medium.
  • the circulation pump 25 is installed inside the pump casing 29 spaced apart from the upper portion of the bulb body (5).
  • the circulation pump 25 may be formed long enough to dissipate heat sufficiently in the pump casing 29.
  • the cooling fan 33 may further increase the cooling efficiency by forcibly supplying air to the circulation tube 23 passing through the pump casing 29.
  • the circulation pump 25 may allow the rotation speed to be varied according to the temperature of the substrate 1.
  • a temperature sensor and a controller may be provided to control the circulation pump by measuring the temperature of the circulation tube 23 in the pump casing 29.
  • both ends of the circulation tube 23 can be connected to or separated from the substrate casing 7 as necessary. This will be very useful when replacing the bulb body 5 which has reached the end of its life. Both ends of the circulation tube 23 may be connected to the substrate casing 7 through a connector to a shutdown valve 35. This is to prevent the heat medium from leaking through its end when the circulation tube 23 is separated.
  • the heat medium reservoir 24 for filling the heat medium in the circulation tube 23 may be further provided.
  • the heat medium reservoir 24 should be provided with a heat medium inlet.
  • a tube connection 37 in the form of a flange is provided to assist the substrate casing 7 and the post 15 to be coupled.
  • the liquid inlet 27 and the liquid outlet 31 described above are provided in the tube connecting table 37 to allow the heat medium to flow into the accommodation space S of the substrate casing 7.
  • the heat medium may be fluorofluoride (CF 3 CF 2 (O) CF (CF 3 ) 2 , Perflouroketone).
  • the heating medium is preferably low in freezing point so as not to freeze even when installed outside in winter, and boiling point is also preferably at least 80 ° C or higher.
  • the power supply unit is a means for supplying external power to the substrate 1.
  • the power supply unit may include a socket 39, a plug 17, and a conductive wire 41.
  • the socket 39 is shaped like a socket of an incandescent lamp which is widely used in a general home, and is cylindrically installed at an end of a power supply line extending from the outside.
  • Female threads are provided on the inner circumferential surface of the socket 39.
  • the plug 17 is rod-shaped so that an electrical connection is made by screwing into the socket 39, and a male screw is provided in the outer peripheral surface.
  • One end of the conducting wire 41 is connected to the plug 17 and the other end is connected to the substrate 1 through the bulb body 5.
  • the socket 39 and the plug 17 allow the bulb body 5 to be easily separated from the support 43.
  • the support 43 is for installing the precursor body 5 and the heat medium circulation unit to the ceiling, the air or the wall, or to the floor. As shown, the support 43 includes the bracket 45 and the rod 47 so that the lighting device can be suspended from the ceiling. In addition, a known lamp shade 49 may be installed to surround the bulb body (5).
  • the substrate casing 7 forms a receiving space S of the heat medium.
  • the transparent plate 51 made of glass or synthetic resin is installed on the front surface of the substrate 1, that is, the surface on which light is generated. Sealed substrate by placing transparent plate 51, cover plate 11, and heat sink 13 in order with watertight packing 52 intervening at each boundary requiring watertightness, and then fastening coupling bolt 53 Inside the casing 7 is provided a completed receiving space (S) for receiving the heat medium.
  • the ring member 55 may be interposed at an edge of the surface of the transparent plate 51.
  • the heat medium is preferably introduced into the receiving space S through the liquid inlet 27 and then circulated evenly therein, and then discharged through the liquid outlet 31.
  • the heat medium guide means for guiding the circulation path of the heat medium may be further included.
  • the shape of the heat medium guide means can form a circulation path of various ways.
  • the heat medium may allow the receiving space S of the substrate casing 7 to circulate in a vortex or zigzag manner. Referring to Figure 6 it can be seen that the zigzag guide groove 57 is formed on the front surface of the heat sink (9).
  • An exemplary path through which the heat medium circulates inside the substrate casing 7 is represented by an arrow.
  • Part of the heat medium introduced into the bottom surface of the cover plate 11 passes through the front part of the substrate 1, and the remaining heat medium passes between the heat sink 9 and the cover plate 11 and exits to the liquid outlet 31. I'm getting it.
  • Unexplained reference numeral 59 is a diffuser plate provided to establish the direction of light.
  • the substrate 1 provided in the accommodation space S is completely immersed in the heat medium. Since the heat medium is non-conductive, there will be no short problem. According to this, heat exchange can be performed more effectively by directly contacting the substrate (and the LED element) and the heat medium.
  • the street lamp of the present invention is coupled to the top of a street lamp post (not shown) for installing the bulb in a position spaced high above the ground.
  • the street light includes a substrate 1, a substrate casing 7, a heat medium supply part 60, a cooling fan 7, and a casing 75.
  • the substrate 1 on which the LED element 3 is mounted is coupled to the substrate casing 7.
  • the substrate casing 7 provides an accommodation space S in which the heat medium is accommodated.
  • the accommodation space S is open in one direction, particularly in the drawing, and has a sealed structure by mounting the substrate 1 on the bottom while maintaining watertightness. Therefore, the liquid heat medium H filled in the accommodation space S is in direct contact with one surface of the substrate 1.
  • the substrate casing 7 is provided with an inlet 61 and an outlet 63 through which the heat medium H enters and enters the accommodation space S.
  • a guide 65 for guiding the flow of the heat medium may protrude from the inside of the substrate casing 7.
  • the guide 65 prevents the incoming heat medium and the discharge heat medium from mixing with each other. By extending the means such as the guide 65, the heat medium may be passed through the receiving space (S) while flowing in a zigzag form.
  • the heat medium supply part circulates and supplies the liquid heat medium to the inside of the receiving space S of the substrate casing 7.
  • the heat medium supply unit 60 includes a circulation pump 25 for forming a hydraulic pressure so that the heat medium is circulated in one direction through the circulation tube 23.
  • the cooling fan 7 is for cooling the heat medium heated up while passing through the accommodation space S.
  • the circulation tube 23 ′ (see FIGS. 9 and 11) passing through the cooling fan 7 may be a curved portion that is bent several times to increase the heat exchange area.
  • the heat medium (H) is a non-conductive liquid, and may be the above-mentioned fluoride ketone (CF 3 CF 2 (O) CF (CF 3 ) 2 , Perflouroketone).
  • One side of the substrate casing 7 is provided with a terminal portion 67 for electrical connection.
  • substrate 1 is supplied with electric power through this terminal part 67.
  • the wires 69 extending from the substrate 1 are electrically connected to the terminal pins of the terminal portion 67 by male and female coupling through terminal holes 71 provided on one side of the substrate casing 7.
  • the heat dissipation fin 13 may be formed on the outer surface of the substrate casing 7 to further increase the heat dissipation effect.
  • the heat medium inlet 61 and the outlet 63 are connected to the circulation tube 23 via a connector to a shut-off valve 35.
  • the shut-up valve 35 is a known pipe connection means, also called a quick valve.
  • the casing 75 has a housing portion 77 for accommodating and installing the substrate casing 7, the heat medium supply portion 60, and the cooling fan 33, and the support portion 79 for connecting to the props of the street lamp.
  • a bolt fastening groove 81 is provided at an edge of the substrate 1, and a rod nut 85 to which the substrate fixing bolt 83 is coupled is installed in the accommodation space S of the substrate casing 7.
  • the gap between the substrate 1 and the opening of the substrate casing 7 is filled by the diaphragm 87.
  • a substrate groove 89 into which the substrate 1 is fitted, and four bolt fitting holes 91 are provided around the substrate groove 89.
  • the edge of the diaphragm 87 is fixed to the edge of the substrate casing 7 by the case fixing bolt 93.
  • the bottom surface 87a of the diaphragm 87 is preferably deposited with a metal such as aluminum or silver so as to have high reflectance.
  • the diaphragm 87 is preferably made of a synthetic resin material for ease of molding or airtightness.
  • the front surface of the substrate 1 is attached with a lens plate 95 that acts as a convex lens to prevent light scattering.
  • the lens plate 95 includes a lens portion 97 and a fixing portion 99 in which a plurality of bolt holes are bored along the length direction.
  • the lens plate 95 is fixed to the front surface of the substrate casing 7 by the fixing rim 101.
  • Dome-shaped transparent cover 103 is fixedly installed on the front of the casing. The transparent cover 103 serves to prevent foreign substances from flowing into the lamp shade and the street lamp and protect the internal device from physical shock.
  • a cover plate 107 in which the air hole 105 is perforated by a louver structure is fixed to the bottom surface of the casing 75 by a fastening screw.
  • a pair of cylindrical sleeves 109 fitted to the pair of support rods 111 installed on the casing 75 are formed on the substrate casing 7.
  • the supporting rod 111 and the sleeve 109 are supporting means for supporting the weight of the substrate casing 7 and assisting to easily replace the substrate casing 7 at a high place.
  • the support rod 111 may be fixed inside the casing 75 by the L-shaped bracket 113.
  • Unexplained reference numeral 115 denotes a street light of the present invention such as a power supply device (eg, switching mode power supply (SMPS)), a controller, a timer, an optical sensor, a temperature sensor, and the like for supplying DC power to the substrate 1. It is a well-known electrical equipment for driving.
  • SMPS switching mode power supply
  • the controller may allow the on / off and rotation speed of the circulation pump 25 to vary according to the temperature of the substrate 1.
  • the controller may include a temperature sensor.
  • a cooling fin (not shown) may be formed on the upper surface of the casing 75. This increases the contact area with the external air, thereby transferring solar heat or heat generated from the casing 75 by the substrate 1 to the external air.
  • lampshade 51 transparent plate
  • diffusion plate 60 heat medium supply unit
  • terminal portion 79 strut connection portion

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

La présente invention porte sur un dispositif d'éclairage utilisant une DEL comportant un moyen de refroidissement refroidi par eau. Le dispositif d'éclairage comprend : un substrat (1) ayant une pluralité d'éléments de DEL montés sur son côté supérieur ; un corps d'ampoule (5) comprenant un boîtier de substrat (7) apte à porter le substrat (1) et dans le même temps recevoir un fluide chauffant liquéfié, et une unité d'alimentation électrique pour fournir une puissance aux éléments de DEL (3) ; une unité de circulation de fluide chauffant pour faire circuler le fluide chauffant reçu dans le boîtier de substrat (7) afin de provoquer un échange de chaleur entre le substrat (1) et le fluide chauffant ; et un support (43) pour permettre au corps d'ampoule (5) et à l'unité de circulation de fluide chauffant d'être accrochés sur un plafond ou une paroi, ou à ces derniers d'être installés sur le plancher.
PCT/KR2013/009518 2013-10-24 2013-10-24 Dispositif d'éclairage à del refroidi par eau et lampadaire l'utilisant WO2015060475A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2013/009518 WO2015060475A1 (fr) 2013-10-24 2013-10-24 Dispositif d'éclairage à del refroidi par eau et lampadaire l'utilisant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2013/009518 WO2015060475A1 (fr) 2013-10-24 2013-10-24 Dispositif d'éclairage à del refroidi par eau et lampadaire l'utilisant

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WO2015060475A1 true WO2015060475A1 (fr) 2015-04-30

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3354980A1 (fr) * 2017-01-27 2018-08-01 Heraeus Noblelight America LLC Systèmes d'éclairage comprenant un ensemble remplaçable sur site, et procédés d'assemblage et d'operation de ces systèmes
IT201800009625A1 (it) * 2018-10-19 2020-04-19 C&E Group Srl Dispositivo di illuminazione
EP3745025A1 (fr) * 2019-05-29 2020-12-02 NBCUniversal Media, LLC Systèmes et procédés de refroidissement de diode électroluminescente
US11333342B2 (en) 2019-05-29 2022-05-17 Nbcuniversal Media, Llc Light emitting diode cooling systems and methods
US12025302B1 (en) 2023-04-28 2024-07-02 NBCUniversal Studios LLC Light emitting diode lighting systems and methods

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KR100782527B1 (ko) * 2007-04-30 2007-12-06 (주) 건룡에너지 냉각수단을 갖는 발광다이오드 조명기구
JP2011146318A (ja) * 2010-01-18 2011-07-28 Aiko Giken Co Ltd 液冷式ｌｅｄ照明装置
KR101237283B1 (ko) * 2011-11-14 2013-02-27 박일권 수냉식 엘이디 조명장치
KR20130062202A (ko) * 2011-12-02 2013-06-12 주식회사 오킨스전자 엘이디 가로등 램프 헤드
US20130271005A1 (en) * 2009-01-08 2013-10-17 Anthony Catalano Advanced cooling method and device for led lighting

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KR100782527B1 (ko) * 2007-04-30 2007-12-06 (주) 건룡에너지 냉각수단을 갖는 발광다이오드 조명기구
US20130271005A1 (en) * 2009-01-08 2013-10-17 Anthony Catalano Advanced cooling method and device for led lighting
JP2011146318A (ja) * 2010-01-18 2011-07-28 Aiko Giken Co Ltd 液冷式ｌｅｄ照明装置
KR101237283B1 (ko) * 2011-11-14 2013-02-27 박일권 수냉식 엘이디 조명장치
KR20130062202A (ko) * 2011-12-02 2013-06-12 주식회사 오킨스전자 엘이디 가로등 램프 헤드

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3354980A1 (fr) * 2017-01-27 2018-08-01 Heraeus Noblelight America LLC Systèmes d'éclairage comprenant un ensemble remplaçable sur site, et procédés d'assemblage et d'operation de ces systèmes
US10458626B2 (en) 2017-01-27 2019-10-29 Heraeus Noblelight America Llc Light systems including field replaceable assembly, and methods of assembling and operating the same
IT201800009625A1 (it) * 2018-10-19 2020-04-19 C&E Group Srl Dispositivo di illuminazione
EP3640535A1 (fr) * 2018-10-19 2020-04-22 C&E Group Srl Dispositif d'éclairage
US10718505B2 (en) 2018-10-19 2020-07-21 C&E Group S.R.L. Illumination device
EP3745025A1 (fr) * 2019-05-29 2020-12-02 NBCUniversal Media, LLC Systèmes et procédés de refroidissement de diode électroluminescente
US11047560B2 (en) 2019-05-29 2021-06-29 Nbcuniversal Media, Llc Light emitting diode cooling systems and methods
US11333342B2 (en) 2019-05-29 2022-05-17 Nbcuniversal Media, Llc Light emitting diode cooling systems and methods
US11946628B2 (en) 2019-05-29 2024-04-02 Nbcuniversal Media, Llc Light emitting diode cooling systems and methods
US12025302B1 (en) 2023-04-28 2024-07-02 NBCUniversal Studios LLC Light emitting diode lighting systems and methods

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