JP2010129185A - Led lamp - Google Patents

Led lamp Download PDF

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Publication number
JP2010129185A
JP2010129185A JP2008299255A JP2008299255A JP2010129185A JP 2010129185 A JP2010129185 A JP 2010129185A JP 2008299255 A JP2008299255 A JP 2008299255A JP 2008299255 A JP2008299255 A JP 2008299255A JP 2010129185 A JP2010129185 A JP 2010129185A
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Prior art keywords
led
light
led lamp
transmitting tube
substrates
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JP2008299255A
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JP5286048B2 (en
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Yusaku Kawabata
雄作 河端
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Rohm Co Ltd
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Rohm Co Ltd
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Priority to JP2008299255A priority Critical patent/JP5286048B2/en
Application filed by Rohm Co Ltd filed Critical Rohm Co Ltd
Priority to US13/129,746 priority patent/US8591057B2/en
Priority to CN201510481264.8A priority patent/CN105135238A/en
Priority to PCT/JP2009/069602 priority patent/WO2010058808A1/en
Priority to CN200980146101.7A priority patent/CN102216671B/en
Publication of JP2010129185A publication Critical patent/JP2010129185A/en
Application granted granted Critical
Publication of JP5286048B2 publication Critical patent/JP5286048B2/en
Priority to US14/055,460 priority patent/US9052099B2/en
Priority to US14/714,847 priority patent/US9777891B2/en
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    • 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
    • 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
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/30—Light sources with three-dimensionally disposed light-generating elements on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805—Shape
    • H01L2224/4809—Loop shape
    • H01L2224/48091—Arched

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide an LED lamp for emitting light as uniformly as possible. <P>SOLUTION: The LED lamp A1 includes LED substrates 20 mounted with a plurality of LED modules 10, and a cylindrical translucent tube 30 storing the plurality of LED substrates 20. The plurality of LED substrates 20 are stored so as to be sectionally fan-shaped together with part of the translucent tube 30 when the inside of the translucent tube 30 is viewed in an axial direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、発光ダイオード（以下、ＬＥＤ）を光源とし、蛍光灯の代替として一般用蛍光灯照明器具に取り付け可能なＬＥＤランプに関する。   The present invention relates to an LED lamp that uses a light emitting diode (hereinafter referred to as LED) as a light source and can be attached to a general fluorescent lamp luminaire as an alternative to a fluorescent lamp.

図６は、従来のＬＥＤランプを示している（たとえば特許文献１参照）。同図に示されたＬＥＤランプＸは、長矩形状の基板９１と、基板９１上に搭載された複数のＬＥＤ９２と、基板９１を収容する管９３と、端子９４とを備えている。基板９１上には、複数のＬＥＤ９２および端子９４に接続される図示しない配線パターンが形成されている。このＬＥＤランプＸは、端子９４を一般用蛍光灯照明器具のソケットの差込口に嵌合させることにより、複数のＬＥＤ９２を発光させることができるように構成されている。   FIG. 6 shows a conventional LED lamp (see, for example, Patent Document 1). The LED lamp X shown in the figure includes a long rectangular substrate 91, a plurality of LEDs 92 mounted on the substrate 91, a tube 93 that accommodates the substrate 91, and a terminal 94. A wiring pattern (not shown) connected to the plurality of LEDs 92 and the terminals 94 is formed on the substrate 91. This LED lamp X is configured such that a plurality of LEDs 92 can emit light by fitting a terminal 94 into an insertion port of a socket of a general fluorescent lamp lighting fixture.

一般用蛍光灯照明器具とは、主に屋内の一般照明に広く用いられる照明器具であり、たとえば日本国内においては、商用１００Ｖまたは２００Ｖ電源を用い、ＪＩＳ Ｃ７６１７に定められた直管形蛍光ランプが取り付けられる照明器具をいう。   The general fluorescent lamp luminaire is a luminaire widely used mainly for indoor general illumination. For example, in Japan, a commercial 100V or 200V power supply is used, and a straight tube fluorescent lamp defined in JIS C7617 is used. A lighting fixture that is attached.

しかしながら、上記従来のＬＥＤランプＸでは、ＬＥＤ９２の光の指向性が強いため、このようなＬＥＤ９２を一つの基板９１に搭載しただけでは、たとえば天井から下方全体にわたって均一に光を照射することができない難点があった。   However, in the conventional LED lamp X, the directivity of the light of the LED 92 is strong, so that it is not possible to irradiate light uniformly, for example, from the ceiling to the entire lower part only by mounting such an LED 92 on one substrate 91. There were difficulties.

実開平６−５４１０３号公報Japanese Utility Model Publication No. 6-54103

本発明は、上記した事情のもとで考え出されたものであって、できる限り均一に光を照射することができるＬＥＤランプを提供することをその課題としている。   The present invention has been conceived under the circumstances described above, and an object thereof is to provide an LED lamp capable of irradiating light as uniformly as possible.

本発明によって提供されるＬＥＤランプは、複数のＬＥＤモジュールを搭載したＬＥＤ基板と、上記ＬＥＤ基板の複数個を収容する円筒状の透光管と、を備えたＬＥＤランプであって、上記複数個のＬＥＤ基板は、上記透光管の内部を軸方向に見た状態において、この透光管の一部とともに断面扇状の形をなすように収容されていることを特徴としている。   The LED lamp provided by the present invention is an LED lamp comprising an LED substrate on which a plurality of LED modules are mounted, and a cylindrical light-transmitting tube that accommodates a plurality of the LED substrates. The LED substrate is accommodated so as to form a sectional fan shape together with a part of the light-transmitting tube in a state where the inside of the light-transmitting tube is viewed in the axial direction.

本発明の好ましい実施の形態においては、上記複数個のＬＥＤ基板は、上記透光管の内部を軸方向に見た状態において、この透光管の内部空間を直径に沿う線で二分した一方の半円領域内に配置されている。   In a preferred embodiment of the present invention, the plurality of LED substrates are formed by dividing the internal space of the light-transmitting tube by a line along the diameter in a state where the inside of the light-transmitting tube is viewed in the axial direction. It is arranged in the semicircle area.

本発明の好ましい実施の形態においては、上記複数個のＬＥＤ基板は、上記一方の半円領域に対して他方となる半円領域に上記ＬＥＤモジュールの搭載面を向けるように配置されている。   In a preferred embodiment of the present invention, the plurality of LED substrates are arranged so that the mounting surface of the LED module faces a semicircular region that is the other of the one semicircular region.

本発明の好ましい実施の形態においては、上記複数個のＬＥＤ基板における上記搭載面とは反対側の背面には、放熱部材が設けられている。   In preferable embodiment of this invention, the thermal radiation member is provided in the back surface on the opposite side to the said mounting surface in said several LED board.

本発明の好ましい実施の形態においては、上記放熱部材には、上記透光管の軸方向に貫通孔が形成されている。   In a preferred embodiment of the present invention, a through hole is formed in the heat radiating member in the axial direction of the light transmitting tube.

このような構成によれば、透光管の内部から複数のＬＥＤ基板が向く様々な方向へと光が照射されるので、できる限り均一に光を照射することができる。   According to such a configuration, light is irradiated from the inside of the light-transmitting tube to various directions facing the plurality of LED substrates, so that the light can be irradiated as uniformly as possible.

本発明のその他の特徴および利点は、添付図面を参照して以下に行う詳細な説明によって、より明らかとなろう。   Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

以下、本発明の好ましい実施の形態につき、図面を参照して具体的に説明する。   Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

図１〜３は、本発明にかかるＬＥＤランプの一実施形態を示している。本実施形態のＬＥＤランプＡ１は、複数のＬＥＤモジュール１０を搭載した２個のＬＥＤ基板２０、透光管３０、放熱部材４０、および口金５０を備えており、全体として細長円筒状に形成されている。このＬＥＤランプＡ１は、たとえば直管形蛍光ランプと外観が同一視され、一般用蛍光灯照明器具に取り付けられるものである。   1 to 3 show an embodiment of an LED lamp according to the present invention. The LED lamp A1 of the present embodiment includes two LED substrates 20 on which a plurality of LED modules 10 are mounted, a translucent tube 30, a heat radiating member 40, and a base 50, and is formed in an elongated cylindrical shape as a whole. Yes. This LED lamp A1 has the same appearance as that of a straight tube fluorescent lamp, for example, and is attached to a general fluorescent lamp luminaire.

ＬＥＤモジュール１０は、ＬＥＤ基板２０の搭載面２０ａに所定の間隔で列をなすように複数個搭載されている。図３に示すように、各ＬＥＤモジュール１０は、ベアチップからなるＬＥＤ１１、これを保護する樹脂パッケージ１２、およびボンディングワイヤ１３によってＬＥＤ１１と導通された状態でこれを支持するベース部材１４からなる。ＬＥＤ１１は、たとえばＧａＮ系半導体からなり、青色光を発光する。樹脂パッケージ１２は、透光性をもつシリコーン樹脂からなる。このような樹脂パッケージ１２には、たとえば青色光によって励起されることにより黄色光を発する蛍光材料が含まれている。なお、蛍光材料として緑色蛍光体および赤色蛍光体を使用することにより、ＬＥＤモジュールを高演色化することができる。ベース部材１４は、たとえばＬＥＤ基板２０の図示しない配線パターンに導通接続された状態でＬＥＤ基板２０に接合されている。   A plurality of LED modules 10 are mounted on the mounting surface 20a of the LED substrate 20 so as to form a row at a predetermined interval. As shown in FIG. 3, each LED module 10 includes an LED 11 made of a bare chip, a resin package 12 that protects the LED 11, and a base member 14 that supports the LED 11 in a state of being electrically connected to the LED 11 by a bonding wire 13. The LED 11 is made of, for example, a GaN-based semiconductor and emits blue light. The resin package 12 is made of a translucent silicone resin. Such a resin package 12 includes, for example, a fluorescent material that emits yellow light when excited by blue light. In addition, the color rendering of the LED module can be enhanced by using a green phosphor and a red phosphor as the fluorescent material. For example, the base member 14 is bonded to the LED substrate 20 in a state of being conductively connected to a wiring pattern (not shown) of the LED substrate 20.

ＬＥＤ基板２０は、たとえばＡｌ製であり、透光管３０の内部に軸方向に沿って挿入可能な長矩形状を呈している。図２に示すように、２個のＬＥＤ基板２０は、透光管３０の内部を軸方向（紙面を貫く方向）に見た場合、この透光管３０の周部上側一部とともに断面扇状の形をなすように収容されている。透光管３０の周部上側一部は、扇形の弧を形成し、２個のＬＥＤ基板２０は、扇形の二辺を形成している。本実施形態では、２個のＬＥＤ基板２０同士のなす角が概ね直角である。このような２個のＬＥＤ基板２０は、透光管３０の内部空間を直径に沿う線（図２に仮想線で示す直線）で上下に二分した場合、上側の半円領域Ｓ１に収まるように配置されている。各ＬＥＤ基板２０の搭載面２０ａは、下側の半円領域Ｓ２に概ね向けられている。これにより、各ＬＥＤ基板２０から出射した光は、様々な方向に向かって進行し、その大部分が透光管３０の内部からその周部を透過して下方へと進む。ＬＥＤ基板２０の背面には、放熱部材４０が設けられている。この放熱部材４０は、透光管３０の周部上側一部と２個のＬＥＤ基板２０とで囲まれた断面扇状の空間に配置されている。   The LED substrate 20 is made of, for example, Al and has a long rectangular shape that can be inserted into the light-transmitting tube 30 along the axial direction. As shown in FIG. 2, the two LED substrates 20 are fan-shaped in cross section together with a part of the upper side of the peripheral portion of the light-transmitting tube 30 when the inside of the light-transmitting tube 30 is viewed in the axial direction (direction penetrating the paper surface). It is housed in a shape. The upper part of the peripheral portion of the light-transmitting tube 30 forms a fan-shaped arc, and the two LED substrates 20 form two fan-shaped sides. In the present embodiment, the angle formed by the two LED substrates 20 is substantially a right angle. Such two LED substrates 20 are arranged so as to fit in the upper semicircular region S1 when the inner space of the light-transmitting tube 30 is divided into two vertically by a line along the diameter (a straight line indicated by a virtual line in FIG. 2). Has been placed. The mounting surface 20a of each LED substrate 20 is generally directed to the lower semicircular region S2. Thereby, the light emitted from each LED substrate 20 travels in various directions, and most of the light travels from the inside of the light-transmitting tube 30 through its peripheral portion and travels downward. A heat radiating member 40 is provided on the back surface of the LED substrate 20. The heat radiating member 40 is disposed in a fan-shaped space surrounded by the upper part of the peripheral portion of the translucent tube 30 and the two LED substrates 20.

透光管３０は、たとえばポリカーボネート樹脂製で押し出し成形によって細長円筒状に形成されている。この透光管３０は、２個のＬＥＤ基板２０を保護するとともに、各ＬＥＤ基板２０からの光を拡散させる特性をもつ。透光管３０の周部上側の内周面には、各ＬＥＤ基板２０に接してこれを位置決め固定するためのリブ３１が一体的に設けられている。各ＬＥＤ基板２０は、リブ３１に対して接着固定されることにより、透光管３０の周部上側一部とともに断面扇状の形をなす。   The translucent tube 30 is made of, for example, polycarbonate resin and is formed in an elongated cylindrical shape by extrusion molding. The translucent tube 30 has a property of protecting the two LED substrates 20 and diffusing light from each LED substrate 20. On the inner peripheral surface on the upper side of the peripheral portion of the light-transmitting tube 30, a rib 31 is provided integrally with the LED substrate 20 so as to contact and fix each LED substrate 20. Each LED substrate 20 is bonded and fixed to the rib 31 to form a fan shape in cross section together with a part of the upper side of the peripheral portion of the translucent tube 30.

放熱部材４０は、たとえばＬＥＤ基板２０と同一材料のＡｌ製であり、２個のＬＥＤ基板２０に一体化されている。この放熱部材４０には、透光管３０の軸方向に貫通孔４１が形成されているとともに、透光管３０の周部上側に近い外面には、ひだ状の凸部４２が形成されている。これにより、放熱部材５０は、空気に触れる表面積が比較的大きくなり、ＬＥＤ基板２０で発生した熱を効率よく放散させる役割を果たしている。   The heat radiating member 40 is made of, for example, Al, which is the same material as the LED substrate 20, and is integrated with the two LED substrates 20. A through hole 41 is formed in the heat radiating member 40 in the axial direction of the light transmitting tube 30, and a pleated convex portion 42 is formed on the outer surface near the upper side of the peripheral portion of the light transmitting tube 30. . Thereby, the heat radiating member 50 has a relatively large surface area in contact with air, and plays a role of efficiently radiating heat generated in the LED substrate 20.

口金５０は、一般用蛍光灯照明器具の差込口に嵌合される部分であり、通電用の端子ピン６１を保持している。口金５０は、透光管３０の長手方向両端部（図１では片側の端部のみを図示している）に取り付けられており、各端子ピン６１は、ＬＥＤ基板２０上の図示しない配線パターンに通じている。各端子ピン６１を蛍光灯照明器具の差込口に嵌合させることにより、ＬＥＤ基板２０上のＬＥＤモジュール１０に電力が供給され、ＬＥＤが発光させられる。   The base 50 is a portion that is fitted into the insertion port of the general fluorescent lamp lighting fixture, and holds the terminal pin 61 for energization. The base 50 is attached to both ends in the longitudinal direction of the light-transmitting tube 30 (only one end is shown in FIG. 1), and each terminal pin 61 is connected to a wiring pattern (not shown) on the LED substrate 20. Communicates. By fitting each terminal pin 61 into the insertion port of the fluorescent lamp lighting fixture, power is supplied to the LED module 10 on the LED substrate 20 and the LED is caused to emit light.

次に、本実施形態のＬＥＤランプＡ１の作用について説明する。   Next, the operation of the LED lamp A1 of this embodiment will be described.

このＬＥＤランプＡ１において、たとえば図２に示す右側のＬＥＤ基板２０からの光は、その大部分が透光管３０の内部から右側下方へと進行し、さらに透光管３０の周部を透過して右側下方に照射される。一方、図２に示す左側のＬＥＤ基板２０からの光は、その大部分が透光管３０の内部から左側下方へと進行し、さらに透光管３０の周部を透過して左側下方に照射される。   In this LED lamp A1, for example, most of the light from the right LED substrate 20 shown in FIG. 2 travels from the inside of the light-transmitting tube 30 to the lower right side, and further passes through the peripheral portion of the light-transmitting tube 30. Is irradiated downward on the right side. On the other hand, most of the light from the left LED substrate 20 shown in FIG. 2 travels from the inside of the light-transmitting tube 30 downward to the left side, and further passes through the periphery of the light-transmitting tube 30 and radiates downward to the left side. Is done.

たとえば、上側の半円領域Ｓ１を天井側とした姿勢でＬＥＤランプＡ１を照明器具に取り付けた場合、天井の方向へと向かう光が少なくなる一方、天井よりも下方の室内空間に向けて効率よく拡散するように光が照射される。   For example, when the LED lamp A1 is attached to the lighting fixture in a posture with the upper semicircular region S1 as the ceiling side, the light directed toward the ceiling is reduced, but efficiently toward the indoor space below the ceiling. Light is irradiated so as to diffuse.

したがって、本実施形態のＬＥＤランプＡ１によれば、一つひとつのＬＥＤモジュール１０に光の指向性があっても、各ＬＥＤ基板２０が向く下方に向けて光が照射されるので、できる限り効率よく均一に光を照射することができる。   Therefore, according to the LED lamp A1 of the present embodiment, even if each LED module 10 has light directivity, light is irradiated toward the lower side toward which each LED substrate 20 faces, so that it is as uniform and efficient as possible. Can be irradiated with light.

図４および図５は、本発明にかかるＬＥＤランプの他の実施形態を示している。なお、先述した実施形態によるものと同一または類似の構成要素については、同一符号を付してその説明を省略する。   4 and 5 show another embodiment of the LED lamp according to the present invention. Note that the same or similar components as those according to the above-described embodiment are denoted by the same reference numerals and description thereof is omitted.

図４に示すＬＥＤランプＡ２は、３個のＬＥＤ基板２０を備えている。これらのＬＥＤ基板２０は、透光管３０の内部を軸方向に見た場合、この透光管３０の周部上側一部とともに断面扇状の形をなすように収容されており、扇形の三つの辺を形成している。この実施形態では、両側のＬＥＤ基板２０の搭載面２０ａが斜め下方に向けられ、中央のＬＥＤ基板２０の搭載面２０ａが真下の方向に向けられている。このような３個のＬＥＤ基板２０は、上側の半円領域Ｓ１に収まるように配置されている。このようなＬＥＤランプＡ２によれば、各ＬＥＤ基板２０によってより多くの方向に向けて光が照射されるので、より一層均一に光を照射することができる。   The LED lamp A2 shown in FIG. 4 includes three LED substrates 20. These LED substrates 20 are housed in a fan-shaped cross section together with a part of the upper part of the periphery of the light-transmitting tube 30 when the inside of the light-transmitting tube 30 is viewed in the axial direction. Forming a side. In this embodiment, the mounting surfaces 20a of the LED substrates 20 on both sides are directed obliquely downward, and the mounting surfaces 20a of the central LED substrate 20 are directed downward. Such three LED substrates 20 are arranged so as to fit in the upper semicircular region S1. According to such an LED lamp A2, since light is irradiated in more directions by each LED substrate 20, it is possible to irradiate light more uniformly.

図５に示すＬＥＤランプＡ３では、２個のＬＥＤ基板２０同士のなす角が鈍角をなすように設定されている。このようなＬＥＤランプＡ３によれば、各ＬＥＤ基板２０の搭載面２ａがより下方に向けられるので、より効率よく下方に向けて光を照射することができる。   In the LED lamp A3 shown in FIG. 5, the angle formed by the two LED substrates 20 is set to be an obtuse angle. According to such an LED lamp A3, since the mounting surface 2a of each LED substrate 20 is directed downward, it is possible to irradiate light downward more efficiently.

なお、本発明は、上記各実施形態に限定されるものではない。   The present invention is not limited to the above embodiments.

本発明にかかるＬＥＤランプの各部の具体的な構成は、種々に設計変更自在である。たとえば、透光管は、放熱部材に近接する部分に開口を有するものとし、放熱部材の一部を透光管から露出させるようにしてもよい。   The specific configuration of each part of the LED lamp according to the present invention can be varied in design in various ways. For example, the light transmissive tube may have an opening in a portion close to the heat radiating member, and a part of the heat radiating member may be exposed from the light transmissive tube.

ＬＥＤモジュールとしては、ＬＥＤチップをワイヤボンディングによってＬＥＤ基板の配線パターンに導通接続した単純な構造のものでもよい。   The LED module may have a simple structure in which the LED chip is conductively connected to the wiring pattern of the LED substrate by wire bonding.

ＬＥＤ基板および放熱部材は、互いに接合されたものとしてもよい。   The LED substrate and the heat dissipation member may be bonded to each other.

透光管の内部空間には、ＬＥＤ基板からの光を外方へと拡散させるような導光体を設けてもよい。   A light guide that diffuses light from the LED substrate outward may be provided in the internal space of the light-transmitting tube.

本発明にかかるＬＥＤランプの一実施形態を示す一部切り欠き斜視図である。It is a partially cutaway perspective view showing an embodiment of an LED lamp according to the present invention. 図１に示すＬＥＤランプの断面図である。It is sectional drawing of the LED lamp shown in FIG. 図１に示すＬＥＤランプに設けられたＬＥＤモジュールの断面図である。It is sectional drawing of the LED module provided in the LED lamp shown in FIG. 本発明にかかるＬＥＤランプの他の実施形態を示す断面図である。It is sectional drawing which shows other embodiment of the LED lamp concerning this invention. 本発明にかかるＬＥＤランプの他の実施形態を示す断面図である。It is sectional drawing which shows other embodiment of the LED lamp concerning this invention. 従来のＬＥＤランプの一例を示す断面図である。It is sectional drawing which shows an example of the conventional LED lamp.

符号の説明Explanation of symbols

Ａ１〜Ａ３ ＬＥＤランプ
Ｓ１ 上側の半円領域
Ｓ２ 下側の半円領域
１０ ＬＥＤモジュール
２０ ＬＥＤ基板
２０ａ 搭載面
３０ 透光管
４０ 放熱部材
４１ 貫通孔 A1 to A3 LED lamp S1 Upper semicircular region S2 Lower semicircular region 10 LED module 20 LED substrate 20a Mounting surface 30 Translucent tube 40 Heat radiation member 41 Through hole

Claims (5)

複数のＬＥＤモジュールを搭載したＬＥＤ基板と、
上記ＬＥＤ基板の複数個を収容する円筒状の透光管と、
を備えたＬＥＤランプであって、
上記複数個のＬＥＤ基板は、上記透光管の内部を軸方向に見た状態において、この透光管の一部とともに断面扇状の形をなすように収容されていることを特徴とする、ＬＥＤランプ。 An LED board having a plurality of LED modules mounted thereon;
A cylindrical translucent tube that houses a plurality of the LED substrates;
An LED lamp comprising:
The plurality of LED substrates are accommodated so as to form a cross-sectional fan shape together with a part of the light-transmitting tube when the inside of the light-transmitting tube is viewed in the axial direction. lamp. 上記複数個のＬＥＤ基板は、上記透光管の内部を軸方向に見た状態において、この透光管の内部空間を直径に沿う線で二分した一方の半円領域内に配置されている、請求項１に記載のＬＥＤランプ。   The plurality of LED substrates are disposed in one semicircular region obtained by dividing the inner space of the light-transmitting tube into two by a line along the diameter in a state where the inside of the light-transmitting tube is viewed in the axial direction. The LED lamp according to claim 1. 上記複数個のＬＥＤ基板は、上記一方の半円領域に対して他方となる半円領域に上記ＬＥＤモジュールの搭載面を向けるように配置されている、請求項２に記載のＬＥＤランプ。   The LED lamp according to claim 2, wherein the plurality of LED substrates are arranged such that a mounting surface of the LED module is directed to a semicircular region that is the other of the one semicircular region. 上記複数個のＬＥＤ基板における上記搭載面とは反対側の背面には、放熱部材が設けられている、請求項３に記載のＬＥＤランプ。   The LED lamp according to claim 3, wherein a heat radiating member is provided on a back surface of the plurality of LED substrates opposite to the mounting surface. 上記放熱部材には、上記透光管の軸方向に貫通孔が形成されている、請求項４に記載のＬＥＤランプ。   The LED lamp according to claim 4, wherein a through hole is formed in the heat radiating member in an axial direction of the light transmitting tube.
JP2008299255A 2008-11-19 2008-11-25 LED lamp Expired - Fee Related JP5286048B2 (en)

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JP2008299255A JP5286048B2 (en) 2008-11-25 2008-11-25 LED lamp
CN201510481264.8A CN105135238A (en) 2008-11-19 2009-11-19 Led lamp
PCT/JP2009/069602 WO2010058808A1 (en) 2008-11-19 2009-11-19 Led lamp
CN200980146101.7A CN102216671B (en) 2008-11-19 2009-11-19 Led
US13/129,746 US8591057B2 (en) 2008-11-19 2009-11-19 LED lamp
US14/055,460 US9052099B2 (en) 2008-11-19 2013-10-16 LED lamp
US14/714,847 US9777891B2 (en) 2008-11-19 2015-05-18 LED lamp

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