WO2017002960A1 - Dispositif d'éclairage - Google Patents

Dispositif d'éclairage Download PDF

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Publication number
WO2017002960A1
WO2017002960A1 PCT/JP2016/069637 JP2016069637W WO2017002960A1 WO 2017002960 A1 WO2017002960 A1 WO 2017002960A1 JP 2016069637 W JP2016069637 W JP 2016069637W WO 2017002960 A1 WO2017002960 A1 WO 2017002960A1
Authority
WO
WIPO (PCT)
Prior art keywords
emitting diode
light
light emitting
translucent cover
led
Prior art date
Application number
PCT/JP2016/069637
Other languages
English (en)
Japanese (ja)
Inventor
英俊 三塚
幸三 市島
小島　裕二郎
Original Assignee
株式会社アブラム
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 株式会社アブラム filed Critical 株式会社アブラム
Priority to JP2017526450A priority Critical patent/JPWO2017002960A1/ja
Publication of WO2017002960A1 publication Critical patent/WO2017002960A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • 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
    • F21V7/00—Reflectors for 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design

Definitions

  • the present invention relates to an illuminating device such as a fixture-integrated illuminating device characterized by a heat dissipation / reflection structure.
  • the light emission principle of an LED is that it emits light when a voltage is applied to a semiconductor element. It is well known to mount an element on a substrate and conduct electricity, but dissipate heat generated when electricity is passed through the LED element. To do so, a heat sink is essential.
  • LEDs can reduce power consumption and produce the same illuminance and light energy as conventional incandescent and fluorescent lamps, and are expected to become more popular in the future. Yes.
  • a straight tube type LED lighting tube that has the same appearance as a fluorescent lamp and can be directly attached to an existing fluorescent lamp fixture is a typical LED light source.
  • LED lighting tubes are broadly classified into general lighting and plant cultivation, and each has a cylindrical shape composed of a light emitting surface made of translucent or transparent glass or synthetic resin and a heat sink for heat dissipation of the LED base. It is a tube. Inside the tube body, LED elements are mounted on a surface on one side at a predetermined interval, and a circuit board through which current flows is provided.
  • the LED illuminating tube has the same shape as that of a straight tube fluorescent lamp as a whole, and a base is attached to both ends of the tube body, and terminals for connecting to the fixture are formed protrudingly. With the above configuration, the LED illumination tube can be attached to an existing fluorescent lamp fixture as well as a new installation, and can receive power from the LED illumination tube to emit light from the LED inside the tube.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2011-113886
  • Patent Document 1 describes a cylindrical tube made of polycarbonate and a part of the peripheral surface of the tube.
  • An LED illuminating tube is disclosed that includes an aluminum heat sink mounted in an opening provided in a plurality of LEDs and a plurality of LEDs mounted in the tube.
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2013-219004 (Patent Document 2) describes that an annular structure having an internal cavity is constituted by a translucent casing and a heat radiating plate having a holding portion coupled to the casing, thereby holding the heat radiating plate.
  • LED lighting comprising a circuit board thermally conductively fixed to the part, one or more LED light sources attached to the circuit board, and two end caps fitted to both ends of the tubular structure A tube is disclosed.
  • Patent Document 2 it can be used by attaching to a fluorescent lamp fixture instead of a conventional fluorescent lamp, and irradiates uniformly over a wide angle.
  • the heat sink material be iron in terms of heat conduction, but since the specific gravity is high, the weight limit of the straight LED tube is over 500g (general 1.2m straight tube), and this condition
  • aluminum that can suppress the weight of the entire LED straight tube to 500 g or less is used as a heat sink material.
  • the thermal conductivity of aluminum is about three times that of iron, and it is not only difficult to extend the life of the LED due to insufficient heat dissipation of the LED, but also when a human touches the LED straight tube that is lit. I had to touch it carefully.
  • the lumen (lm) which expresses the brightness of the LED straight tube as a numerical value, collectively represents the total amount of light (total luminous flux) irradiated radially in all directions.
  • the LED straight tube is suitable for irradiating in a wide range, but when a light amount is required in a specific direction such as directly under the light source or its surrounding space, that is, a narrow angle (180 to 90 degrees). This is not necessarily suitable when the light distribution is required.
  • LED-based lighting with integrated fixtures is a fixture that has the same structure not only in Japan but in almost the whole world, and has been supplied to the market for several years. is there.
  • Illuminance and photosynthetic effective photon flux density (PPFD) comparable to fluorescent lamps can be achieved with about half the power consumption of fluorescent lamps.
  • Energy saving and high functionality [2] Responding to equipment requirements for various applications [3] Universal integrated device that can be manufactured at low cost and applied to the same type of device around the world [4] Replacement of the LED board or LED power supply in the device will leave the device case intact System possible in the state
  • the present invention has been made in view of the above-described problems, and an object thereof is to provide an illumination device that can obtain high heat dissipation and illuminance.
  • a lighting device is a light emitting diode, a translucent cover that transmits light from the light emitting diode, a heat conductive substrate on which the light emitting diode is mounted, and a heat conductive substrate that supports the substrate.
  • a third member that forms a space for accommodating the power source of the light emitting diode, and the surface of the second member on the light emitting diode side transmits light from the light emitting diode to the light emitting diode.
  • the light emitting diode is disposed in a posture directed to the translucent cover, and at least a part of the light emitting diode side surface is a curved surface having light reflection characteristics.
  • the second member of the first invention includes a fourth member extending from the first member toward the translucent cover, and the first member of the fourth member.
  • a fifth member extending opposite to the transparent cover from the opposite end, and the curved surface is formed in the fourth member.
  • the fifth member is positioned to face the translucent cover, reflects light reflected from an inner surface of the translucent cover out of light from the light emitting diode, and transmits the light. It has a reflective surface that allows the cover to pass through.
  • a lighting device includes a light emitting diode, a translucent cover that transmits light from the light emitting diode, a heat conductive substrate on which the light emitting diode is mounted, and a heat conductive substrate that supports the substrate.
  • a third member that forms a space that accommodates the power source of the light emitting diode, and the surface of the second member on the light emitting diode side transmits light from the light emitting diode.
  • the light-emitting diode is disposed in a posture directed to the translucent cover, and at least a part of the surface on the light emitting diode side is an uneven surface having light reflection characteristics.
  • the second member of the second invention includes a fourth member extending from the first member toward the translucent cover, and the first member of the fourth member.
  • a fifth member extending opposite to the transparent cover from the opposite end, and the uneven surface is formed on the fourth member.
  • the present invention is such that the light emitting diode is positioned on the center line of the translucent cover along the cross section, or symmetrical with respect to the center line.
  • the second member is line symmetric with respect to the center line.
  • the present invention is such that the light emitting diode is positioned on the center line of the translucent cover along the cross section, or symmetrical with respect to the center line.
  • the second member is provided only on one side with respect to the center line.
  • the present invention it is possible to provide a lighting device capable of obtaining high heat dissipation and illuminance.
  • an illumination device is as follows.
  • the original light distribution of the LED is an appliance design that takes into account the "light theorem and the difference in reflectance specific to the LED's wavelength”
  • the illuminance (Lx) of the light irradiation surface and PPFD are improved by 1.5 to 2.0 times without changing the power consumption.
  • the “base plate” for mounting the LED board and the LED power supply is mounted on the steel base plate currently on the market according to the shape, size and board for each application. Designed to be angled, connectable and connectable.
  • the “base plate” will be an aluminum extrusion heat sink base plate of the mold extrusion molding that has the heat dissipation effect of the LED.
  • the technology to solve the above problem [4] The method of mounting the LED board and LED power supply is not using the [claws] for fixing and fixing the dozens of pre-processed parts on the current “base plate”.
  • the LED board / LED power supply can be easily exchanged by “one touch” by using the LED board insertion hole machined at the time of die extrusion on the aluminum heat sink base plate of [2] above.
  • the heat sink portion directly under the base on which the LED element is mounted and the distance between the outside of the case and the human body are made longer by 2 to 3 times the length of the conventional heat sink.
  • the conduction efficiency is improved, and the heat dissipation effect of heat generated when the LED element is energized is enhanced.
  • the heat sink structure immediately below the substrate on which the LED element is mounted is not a semicircular structure and the distance from the LED element directly below and the heat sink that touches the human body is short, but the distance from directly below the LED element to the outside of the case
  • an M-type structure is adopted to increase the heat conduction efficiency and further promote heat dissipation.
  • an M-shaped heat sink (cross section) structure that condenses and reflects light at a constant angle reflects light emitted from the LED element and directs it in a predetermined direction to improve illuminance.
  • the heat sink surface on the LED element side is subjected to silver coating, plating or chrome treatment with high reflection efficiency.
  • the heat sink cover is of a diffusion type or a prism type.
  • FIG. 1 is a cross-sectional configuration diagram of an appliance-integrated lighting device 1.
  • the fixture-integrated lighting device 1 includes a light-emitting diode 13, a translucent cover 31 that transmits light from the light-emitting diode 13, and a heat-conductive substrate 12 on which the light-emitting diode 13 is mounted.
  • the third member 40 is provided on the opposite side of the transparent cover 31 with respect to the first member 17 and forms a space for accommodating the power source of the light emitting diode 13.
  • the first member 17 and the second member 19 are heat sinks.
  • the third member 40 may be a heat conductive member.
  • the appliance-integrated lighting device 1 has a plurality of light emitting diodes 13 arranged at predetermined intervals in a direction orthogonal to the paper surface shown in FIG.
  • the second member 19 is transparent from the fourth member 191 extending from the first member 17 toward the translucent cover 31 and from the end of the fourth member 191 opposite to the first member 17. And a fifth member 193 extending opposite the cover 31.
  • the reflection surface 19a on the light emitting diode 13 side of the fourth member 191 has light reflection characteristics (for example, silver coating).
  • the fourth member 191 is held in a posture to reflect the light from the light emitting diode 13 toward the translucent cover 31.
  • the light emitted to the outside through the transparent cover 31 is, for example, an irradiation angle; 120 to 180 degrees, 2000 to 3000 lm.
  • the elevation angle of the reflection surface 19a on the light emitting diode 13 side is changed from 50 degrees to 75 degrees, and the distance between the arrangement end of the light emitting diode 13 and the fourth member 191 is set to 0.1 to 5.0 mm.
  • the height of 191 is set to, for example, 5 times or more of the width of the light emitting diode 13, for example, 10 mm to 20 mm, it is possible to eliminate the loss of light amount at a wide irradiation angle and improve the illuminance and PPFD.
  • Illuminance irradiated by the light emitting diode 13 is, for example, 1.5 to 2.0 times.
  • the elevation angle of the reflecting surface 19a with respect to the substrate 12, the distance between the light emitting diode 13 and the fourth member 191, and the height of the fourth member 191 are variable according to the size of the LED lighting device such as the diameter. May be.
  • the reflection surface 19 a on the light emitting diode 13 side of the fourth member 191 has a light reflection characteristic and is a curved surface that protrudes toward the center line 61.
  • the curvature of the curved surface is appropriately determined according to the required light directivity.
  • the total reflectance of the reflecting surface 19a of the third heat sink 19 is set to 80% or more. Specifically, for example, silver plating, silver coating, chrome treatment, or the like is performed on the reflection surface 19a. Further, the illuminance at this time is based on the “brightness theorem” that “the brightness is inversely proportional to the square of the distance between the light source and the illumination slope”, and between the light emitting diode 13 and the fourth member 191.
  • the distance S is, for example, 0.1 to 5.0 mm.
  • the image of the light emitting diode 13 reflected by the reflecting surfaces 19a on both sides is visually recognized as a pseudo light emitting diode.
  • the illuminance of the light emitting diode 13 at that time is, for example, 30 to 80 lx / w.
  • the fifth member 193 has a portion facing the transparent cover 31.
  • the fifth member 193 is also provided with a reflective surface having a reflection characteristic by silver coating or the like, and further reflects the light reflected by the translucent cover 31 and puts it out of the translucent cover 31. This can greatly improve the brightness. That is, the light that enters the space 60 formed between the translucent cover 31 and the fifth member 193 is reflected by the reflecting surface of the fifth member 193, and the translucent cover that faces the space 60. Light can be emitted at a wide angle by transmitting outward from 31.
  • the size of the gap is very small or has a certain size.
  • the fixture-integrated lighting device 1 is symmetrical with respect to the line 61.
  • the fixture-integrated lighting device 1 heat generated by the light emitting diode 13 is transmitted through the substrate 12, the first member 17, and the second member 19 to be radiated. If the third member 40 is a heat conductive member, the heat is radiated through this. The light from the light emitting diode 13 is reflected by the surface of the fourth member 141 on the light emitting diode 13 side and is radiated through the translucent cover 31.
  • the heat radiation effect and the reflection effect can be enhanced by treating the reflection surface 19a of the fourth member 191 with a treatment for improving the reflection efficiency (silver coating or the like).
  • the first member 17 and the second member 19 may be formed using a synthetic resin in addition to a ceramic member.
  • the treatment for improving the reflection efficiency of the present embodiment is silver coating, silver plating or a similar coating.
  • the total reflectance can be improved to about 90%.
  • the matching between the reflective material and the heat sink is unnecessary, and the quality can be improved.
  • a power source for supplying power to the light emitting diode 13 is installed in the space formed by the third member 40.
  • the power source is provided at the bottom position of the space formed by the light emitting diode 13.
  • a universal power source is used as the power source.
  • 100 LED elements (chips) were connected.
  • the AC type input voltage (AC) is 20 W, 90 V to 264 Vac.
  • the power source can be driven using a battery.
  • the LED lighting device of this embodiment can be driven by a single power source such as 5V.
  • the driving power source may be a battery; 1.5V ⁇ n. Even when such a power source is used, the light emitted from the light emitting diode 13 has directivity, and the light directing surface for irradiating the light from the LED illumination tube to the outside of the tube and the side facing the LED element are provided.
  • a pseudo LED element forming surface for projecting the pseudo LED element of the mounted light emitting diode 13 on the condensing reflection surface can be provided.
  • the driving device such as an AC power source is provided in the LED illumination tube and is disposed at a position that does not interfere with light emitted from the LED light source.
  • electronic components such as a power source other than the light source of the light emitting diode, all or a part thereof may be arranged on the back surface side instead of the front surface side of the substrate. Thus, it is possible to arrange the substrate on the back side, and the internal space on the surface side of the substrate can be widened.
  • the forward voltage for driving the light emitting diode 13 of the light emitting diode type lighting device the LED mounted at the substrate by driving the light emitting diode type lighting device by applying the LED element of at least 1.5V to 4.5V
  • the pseudo LED element is displayed on the pseudo LED formation surface.
  • the pseudo LED element preferably projects the pseudo LED element on the pseudo LED formation surface if the LED element emits light.
  • the driving voltage is preferably driven by a single power source.
  • the fixture-integrated lighting device 1 is configured so that the reflective surface 19a of the fourth member 191 of the second member 19 has a convex curved surface, so that light is uniformly distributed over a wide area of the translucent cover 31. Can diffuse.
  • the light transmittance of the translucent cover 31 is, for example, 95% or more.
  • the distance between the light emitting diode 13 and the outer peripheral surface of the external sheet sink 33 (the portion touched by the human body) can be increased ( Can be longer than twice).
  • a high heat dissipation effect can be obtained.
  • the material of the heat sink is aluminum
  • the heat of the part touched by the human body can be set to a safe temperature (for example, about 40 ° C.).
  • the material of the heat sink of this embodiment is generally aluminum or copper which is excellent in heat conduction efficiency.
  • FIG. 2 is a cross-sectional view of the fixture-integrated illumination device according to the second embodiment of the present invention.
  • the reflection surface 119 a on the light emitting diode 13 side of the fourth member 191 has light reflection characteristics, and is a concave curved surface with respect to the center line 61.
  • the curvature of the curved surface is appropriately determined according to the required light directivity.
  • the reflective surface 119a into a concave curved surface it is possible to provide light reflection directivity that cannot be obtained when the reflective surface 119a is a flat surface. That is, the light from the light emitting diode 13 can have a desired diffuse reflection effect, and uniform light can be emitted. According to this embodiment, the same effect as that of the first embodiment can be obtained.
  • FIG. 3 is a cross-sectional view of the fixture-integrated lighting device according to the third embodiment of the present invention.
  • the whole or a part of the reflection surface 219a on the light emitting diode 13 side of the fourth member 191 has light reflection characteristics, and a large number of irregularities are formed.
  • the shape, size, interval, and number of the unevenness are appropriately determined according to required optical characteristics.
  • the reflective surface 219a a surface on which a plurality of (many) irregularities are formed, it is possible to provide light reflection directivity that cannot be obtained when the reflective surface 219a is flat. That is, the light from the light emitting diode 13 can have a desired diffuse reflection effect, and uniform light can be emitted. According to this embodiment, the same effect as that of the first embodiment can be obtained.
  • FIG. 4 is a sectional view of an appliance-integrated illumination device according to a fourth embodiment of the present invention.
  • the fourth member 191 is formed only on one side of the center line 61.
  • the straight tube type light emitting diode type illumination lamp of the present embodiment is used as one that is arranged at the end when a plurality of straight tube type light emitting diode type illumination lamps are arranged in parallel. In the present embodiment, the amount of light in one direction can be increased.
  • the present invention is not limited to the embodiment described above. That is, those skilled in the art may make various modifications, combinations, subcombinations, and alternatives regarding the components of the above-described embodiments within the technical scope of the present invention or an equivalent scope thereof.
  • the light-transmitting cover 31 is exemplified by a curved shape, but may be a planar shape.
  • the present invention is applicable to an appliance-integrated lighting device.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

La présente invention concerne un dispositif d'éclairage comprenant : une diode électroluminescente (13) ; un couvercle translucide (31) ; un substrat conducteur de chaleur (12) sur lequel la diode électroluminescente (13) est montée ; un premier élément conducteur de chaleur (17) supportant le substrat (12) ; un deuxième élément (19) qui s'étend depuis le premier élément (17) vers le couvercle translucide (31) et qui transmet la chaleur depuis le premier élément (17) ; et un troisième élément (40) qui est disposé sur le côté opposé au couvercle transparent (31) par rapport au premier élément (17) et qui forme un espace pour recevoir une alimentation électrique pour la diode électroluminescente (13). Une surface réfléchissante (19a) d'un quatrième élément (191) est une surface incurvée.
PCT/JP2016/069637 2015-07-02 2016-07-01 Dispositif d'éclairage WO2017002960A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017526450A JPWO2017002960A1 (ja) 2015-07-02 2016-07-01 照明装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-133423 2015-07-02
JP2015133423 2015-07-02

Publications (1)

Publication Number Publication Date
WO2017002960A1 true WO2017002960A1 (fr) 2017-01-05

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Application Number Title Priority Date Filing Date
PCT/JP2016/069637 WO2017002960A1 (fr) 2015-07-02 2016-07-01 Dispositif d'éclairage

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JP (1) JPWO2017002960A1 (fr)
WO (1) WO2017002960A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018137125A (ja) * 2017-02-22 2018-08-30 スタンレー電気株式会社 車両用灯具

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011028946A (ja) * 2009-07-23 2011-02-10 Atex Co Ltd Ｌｅｄ照明装置
JP2012074317A (ja) * 2010-09-29 2012-04-12 Panasonic Corp 照明装置、ランプ及びショーケース
JP2012099456A (ja) * 2010-10-08 2012-05-24 Nihon Led Kk 照明装置
JP2012216314A (ja) * 2011-03-31 2012-11-08 Fdk Corp Ｌｅｄ照明装置
JP2014056790A (ja) * 2012-09-14 2014-03-27 Mitsubishi Electric Corp 照明ランプ
JP2014089894A (ja) * 2012-10-30 2014-05-15 Sekisui Plastics Co Ltd 照明ランプ
JP5717114B1 (ja) * 2014-10-17 2015-05-13 株式会社アブラム 直管形発光ダイオード式照明灯

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011028946A (ja) * 2009-07-23 2011-02-10 Atex Co Ltd Ｌｅｄ照明装置
JP2012074317A (ja) * 2010-09-29 2012-04-12 Panasonic Corp 照明装置、ランプ及びショーケース
JP2012099456A (ja) * 2010-10-08 2012-05-24 Nihon Led Kk 照明装置
JP2012216314A (ja) * 2011-03-31 2012-11-08 Fdk Corp Ｌｅｄ照明装置
JP2014056790A (ja) * 2012-09-14 2014-03-27 Mitsubishi Electric Corp 照明ランプ
JP2014089894A (ja) * 2012-10-30 2014-05-15 Sekisui Plastics Co Ltd 照明ランプ
JP5717114B1 (ja) * 2014-10-17 2015-05-13 株式会社アブラム 直管形発光ダイオード式照明灯

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018137125A (ja) * 2017-02-22 2018-08-30 スタンレー電気株式会社 車両用灯具

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