JP2010135181A - Illuminating device - Google Patents

Illuminating device Download PDF

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JP2010135181A
JP2010135181A JP2008310086A JP2008310086A JP2010135181A JP 2010135181 A JP2010135181 A JP 2010135181A JP 2008310086 A JP2008310086 A JP 2008310086A JP 2008310086 A JP2008310086 A JP 2008310086A JP 2010135181 A JP2010135181 A JP 2010135181A
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heat
support cylinder
lighting
light
leds
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Masashi Yamamoto
昌史 山本
Hiroyuki Yamamoto
裕之 山本
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Sharp Corp
シャープ株式会社
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-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
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20Light sources comprising attachment means
    • F21K9/23Retrofit 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
    • F21K9/232Retrofit 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 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00Globes; Bowls; Cover glasses
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2107/00Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/30Light 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illuminating device capable of improving a heat-dissipation capability, while suppressing the generation of a temperature gradient at the supporting member of a light source. <P>SOLUTION: The illuminating device is equipped with LEDs 2 a translucent cover 4 internally having the LEDs 2 and passing the light from the LEDs 2 a supporting tube 1 to support the LEDs 2 and a cooling-medium flow channel to flow air serving as a cooling medium inside and outside of the supporting tube 1. Accordingly, the arrangement described above can cool the supporting tube 1 through natural convection from both sides. In other words, it can cool mounting substrates 21 from both sides, resulting in the improvement of heat-dissipation capability. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、自然対流により放熱性を向上するように構成された照明装置に関する。   The present invention relates to a lighting device configured to improve heat dissipation by natural convection.

照明装置は、一般に、光源等の発熱部品を内部に収容している。このため、内部に収容された発熱部品の性能を確保すべく、該発熱部品の温度上昇を抑制すると共に、安全の観点から照明装置の外面の温度上昇を抑制するように照明装置を構成する必要がある。特に、発光ダイオード(以下、LEDという)を光源として用いる照明装置においては、LEDの温度上昇に伴い、LEDの寿命特性が悪化すると共に、発光効率が低下し、必要な光量を確保し難くなるという問題が生じる虞があるため、LEDの温度上昇を抑制すべく、放熱性の良好な構造にする必要がある。そこで、発熱部品が発した熱を外部の空気に放散すべく、種々の放熱構造を有する照明装置が提案されている(例えば、特許文献1参照)。   The lighting device generally contains a heat-generating component such as a light source. For this reason, in order to ensure the performance of the heat generating component housed inside, it is necessary to configure the lighting device so as to suppress the temperature rise of the heat generating component and suppress the temperature increase of the outer surface of the lighting device from the viewpoint of safety. There is. In particular, in an illuminating device using a light emitting diode (hereinafter referred to as LED) as a light source, as the temperature of the LED rises, the lifetime characteristic of the LED deteriorates, the light emission efficiency decreases, and it becomes difficult to secure a necessary amount of light. Since there is a possibility that a problem may occur, it is necessary to have a structure with good heat dissipation in order to suppress the temperature rise of the LED. In view of this, lighting devices having various heat dissipation structures have been proposed in order to dissipate the heat generated by the heat generating components to the outside air (see, for example, Patent Document 1).

特許文献1に開示されたLEDランプは、光源であるLED素子と、LED素子が実装された実装基板を支持する支持部材と、実装基板を収納するバルブとを備えてなる。このLEDランプは、前記バルブの壁に設けた対向する一対の孔に、前記支持部材を貫通させてあり、LED素子からの熱を支持部材に伝達し、伝達された熱を、前記支持部材の内部の流体から外部の空気に放熱するように構成してある。このように構成することにより、放熱性を向上し、LED素子の温度上昇を抑制することができる。
特開2004−296245号公報
The LED lamp disclosed in Patent Document 1 includes an LED element that is a light source, a support member that supports a mounting board on which the LED element is mounted, and a bulb that houses the mounting board. In this LED lamp, the support member is passed through a pair of opposed holes provided in the wall of the bulb, the heat from the LED element is transmitted to the support member, and the transmitted heat is transmitted to the support member. Heat is dissipated from the internal fluid to the external air. By comprising in this way, heat dissipation can be improved and the temperature rise of an LED element can be suppressed.
JP 2004-296245 A

ところが、特許文献1のLEDランプは、LED素子からの熱を、支持部材の内部からのみ、冷却媒体である空気に放熱する構成であるので、放熱が十分に行われないという問題があった。また、LED素子からの熱は、実装基板及び支持部材を伝熱し、支持部材から冷却媒体である空気に放熱されるので、実装基板又は実装基板と支持部材の絶縁部材の材料によっては、伝熱が効果的になされず、放熱が十分に為されない虞があった。   However, the LED lamp disclosed in Patent Document 1 has a configuration in which heat from the LED element is radiated to air as a cooling medium only from the inside of the support member, and thus there is a problem that heat radiation is not sufficiently performed. In addition, heat from the LED element is transferred to the mounting substrate and the support member, and is radiated from the support member to the air that is the cooling medium. Depending on the material of the mounting substrate or the insulating member of the mounting substrate and the support member, the heat transfer However, there is a risk that heat is not sufficiently released.

本発明は斯かる事情に鑑みてなされたものであり、放熱性を向上することができる照明装置を提供することを目的とする。   This invention is made | formed in view of such a situation, and it aims at providing the illuminating device which can improve heat dissipation.

本発明に係る照明装置は、光源と、該光源を内部に収容し、前記光源からの光を透過する透光性収容体とを備える照明装置において、前記光源を支持する支持筒と、該支持筒の内側及び外側に冷却媒体を流動させる冷却媒体流動路とを備えることを特徴とする。   The illuminating device according to the present invention is a illuminating device including a light source, a translucent container that houses the light source therein and transmits light from the light source, and a support cylinder that supports the light source; A cooling medium flow path for flowing the cooling medium inside and outside the cylinder is provided.

本発明にあっては、光源を支持する支持筒の内側及び外側に冷却媒体を流動させる冷却媒体流動路を設けている。冷却媒体流動路を適切に設けることにより、自然対流により支持筒を両面から冷却することが可能となり、放熱性を向上することができる。   In the present invention, the cooling medium flow path for flowing the cooling medium is provided inside and outside the support cylinder that supports the light source. By appropriately providing the cooling medium flow path, it is possible to cool the support cylinder from both sides by natural convection and to improve heat dissipation.

本発明に係る照明装置は、前記支持筒を固定する固定部を備え、該固定部には前記冷却媒体を通過させる流通孔を設けてあることを特徴とする。   The illuminating device according to the present invention includes a fixing portion that fixes the support cylinder, and the fixing portion is provided with a flow hole through which the cooling medium passes.

本発明にあっては、支持筒を固定する固定部に冷却媒体が通過可能なように流通孔を設けている。流通孔を適切に設けることにより、自然対流により支持筒の内側及び外側を通過するように冷却媒体を流動させることが可能となる。   In the present invention, the flow hole is provided so that the cooling medium can pass through the fixing portion for fixing the support cylinder. By appropriately providing the flow holes, the cooling medium can be made to flow so as to pass through the inside and outside of the support cylinder by natural convection.

本発明に係る照明装置は、前記固定部を保持し、内部に空洞を有する中空保持部を備えており、前記透光性収容体及び中空保持部の内部を前記支持筒及び流通孔により連通させてあることを特徴とする。   The illuminating device according to the present invention includes a hollow holding portion that holds the fixing portion and has a cavity therein, and communicates the inside of the translucent container and the hollow holding portion with the support cylinder and the flow hole. It is characterized by being.

本発明にあっては、光源からの光を透過する透光性収容体、及び固定部を保持する中空保持部の内部を、支持筒及び流通孔により連通させている。流通孔を適切に設けることにより、発熱部品である光源を収容している透光性収容体の内部と、該透光性収容体よりも温度が低い中空保持部の内部との間で、自然対流により支持筒の内側及び外側に沿って流動するように冷却媒体を循環させることが可能となる。光源からの熱は、冷却媒体から透光性収容体に伝達され、外部の空気に放散されることになる。この結果、自然対流により支持筒の内側と外側とを同じように冷却することができ、放熱性を向上することができる。   In the present invention, the inside of the translucent container that transmits light from the light source and the hollow holding portion that holds the fixing portion is communicated with each other by the support cylinder and the flow hole. By appropriately providing the flow holes, it is possible to form a natural gap between the inside of the translucent container that contains the light source that is a heat-generating component and the inside of the hollow holding part that has a lower temperature than the translucent container. It becomes possible to circulate the cooling medium so as to flow along the inside and outside of the support cylinder by convection. The heat from the light source is transmitted from the cooling medium to the translucent container and dissipated to the outside air. As a result, the inner side and the outer side of the support cylinder can be cooled in the same way by natural convection, and heat dissipation can be improved.

本発明に係る照明装置は、前記固定部に連設され、前記光源からの熱を放散する放熱部を備えていることを特徴とする。   The illuminating device according to the present invention includes a heat dissipating part that is connected to the fixing part and dissipates heat from the light source.

本発明にあっては、光源からの熱を放散する放熱部を固定部に連設してあるから、光源からの熱は、前述した如く、照明装置内部を循環する冷却媒体により外部の空気に放散されると共に、支持筒及び固定部から放熱部に熱伝導により直接伝達されて、放熱部から外部の空気に放散されることになり、放熱性をさらに向上することができる。   In the present invention, since the heat radiating part for radiating the heat from the light source is connected to the fixed part, the heat from the light source is transferred to the outside air by the cooling medium circulating inside the lighting device as described above. In addition to being diffused, it is directly transmitted from the support cylinder and the fixed part to the heat radiating part by heat conduction, and is radiated from the heat radiating part to the outside air, so that the heat dissipation can be further improved.

本発明に係る照明装置は、前記透光性収容体は有底円筒形状をなし、前記透光性収容体及び支持筒は略同心的に配置してあることを特徴とする。   The illuminating device according to the present invention is characterized in that the translucent container has a bottomed cylindrical shape, and the translucent container and the support tube are arranged substantially concentrically.

本発明にあっては、有底円筒形状を有する透光性収容体と支持筒とを略同心的に配置してあるから、冷却媒体が通過する面積を支持筒の長手方向の略全長に亘って略等しくすることができる。これにより、支持筒の内側と外側を冷却媒体が円滑に循環するように自然対流を生ぜしめることができ、放熱性をさらに向上することができる。   In the present invention, since the translucent container having the bottomed cylindrical shape and the support cylinder are disposed substantially concentrically, the area through which the cooling medium passes covers substantially the entire length in the longitudinal direction of the support cylinder. Can be made approximately equal. As a result, natural convection can be generated so that the cooling medium circulates smoothly inside and outside the support cylinder, and heat dissipation can be further improved.

本発明に係る照明装置は、前記光源はLEDであることを特徴とする。   In the illumination device according to the present invention, the light source is an LED.

本発明にあっては、光源としてLEDを用いている。LEDは小型であり、配置設計の自由度が高いから、LEDを適切に支持筒に配置することにより、LEDが発する熱を効率良く支持筒の内側及び外側を流動する空気に伝達して外部の空気に放散することが可能となる。   In the present invention, an LED is used as the light source. Since the LED is small and has a high degree of freedom in layout design, by appropriately arranging the LED in the support cylinder, the heat generated by the LED is efficiently transmitted to the air flowing inside and outside the support cylinder, and externally It becomes possible to dissipate into the air.

本発明によれば、放熱性を向上することができる。   According to the present invention, heat dissipation can be improved.

以下、本発明をその実施の形態を示す図面に基づいて詳述する。
(実施の形態1)
図1は、本発明の実施の形態1に係る照明装置100の模式的外観斜視図である。図2は、照明装置100の模式的分解斜視図である。図3は、照明装置100の模式的縦断面図である。図4は、図3のIV−IV線による模式的断面図である。
Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof.
(Embodiment 1)
FIG. 1 is a schematic external perspective view of lighting apparatus 100 according to Embodiment 1 of the present invention. FIG. 2 is a schematic exploded perspective view of the lighting device 100. FIG. 3 is a schematic longitudinal sectional view of the lighting device 100. 4 is a schematic cross-sectional view taken along line IV-IV in FIG.

図中1は、光源を支持する支持筒である。支持筒1は、図2に示すように、四角筒形状をなし、例えば、アルミニウム等の金属製である。   In the figure, reference numeral 1 denotes a support cylinder that supports the light source. As shown in FIG. 2, the support tube 1 has a rectangular tube shape, and is made of a metal such as aluminum, for example.

支持筒1には、複数(図において5つ)のLED2,2…(光源)が実装された実装基板21,21…が複数(図において4つ)設けてある。LED2は、例えば、LED素子と、該LED素子を封止し、蛍光体が分散された封止樹脂と、入力端子及び出力端子とを備えてなる表面実装型LEDである。このようなLED2,2…は、細長い矩形板状をなす実装基板21の一面21aに、該実装基板21の長手方向に沿って適長離隔して実装してある。なお、実装基板21はアルミニウム等の金属製であることが望ましい。   The support cylinder 1 is provided with a plurality (four in the figure) of mounting substrates 21, 21,... On which a plurality (five in the figure) of LEDs 2, 2,. The LED 2 is, for example, a surface-mounted LED that includes an LED element, a sealing resin in which the LED element is sealed and phosphors are dispersed, and an input terminal and an output terminal. The LEDs 2, 2,... Are mounted on the one surface 21a of the mounting board 21 having an elongated rectangular plate shape with an appropriate distance from each other along the longitudinal direction of the mounting board 21. The mounting substrate 21 is preferably made of a metal such as aluminum.

支持筒1の外周面1aの各平面には、支持筒1の長手方向に沿って実装基板21,21…が他面21b,21b…にて夫々取付けてある。なお、実装基板21,21…と支持筒1との間には、熱伝導シート又はグリースを介装する方が、より望ましい。   .. Are mounted on the other surfaces 21b, 21b... Along the longitudinal direction of the support cylinder 1 on the respective planes of the outer peripheral surface 1a of the support cylinder 1. It is more desirable to interpose a heat conductive sheet or grease between the mounting boards 21, 21... And the support cylinder 1.

LED2,2…が実装された実装基板21,21…が取付けられた支持筒1は、固定部である固定台3に固定してある。固定台3は、円板状の支持筒固定板31と、該支持筒固定板31の周縁に立設され、後述する放熱部5が固定される円筒状の固定筒32とを備えてなる扁平な有底円筒形状を有している。固定台3は、例えば、アルミニウム等の金属製であり、一体成形してある。   The mounting cylinders 21, 21, on which the LEDs 2, 2... Are mounted are fixed to a fixing base 3 that is a fixing portion. The fixing base 3 is a flat plate comprising a disk-shaped support cylinder fixing plate 31 and a cylindrical fixed cylinder 32 which is provided on the periphery of the support cylinder fixing plate 31 and to which a heat radiating portion 5 described later is fixed. It has a bottomed cylindrical shape. The fixed base 3 is made of a metal such as aluminum and is integrally formed.

支持筒固定板31の略中央には、矩形状をなし、支持筒1が固定される固定孔31aが設けてある。また、支持筒固定板31には、冷却媒体が通過可能なように、複数の流通孔31b,31b…が固定孔31aの各辺に整合する位置に、周方向に等配をなして設けてある。支持筒1は、一端の側をこの固定台3の固定孔31aに挿入し、図3に示すように、一端を固定台3の内側に適長突出させた状態にて固定してある。この結果、図4に示すように、LED2,2…と流通孔31b,31b…の周方向位置が略同一となり、流通孔31b,31b…が、透光性カバー4と支持筒1の間に位置する。なお、本実施の形態においては、上向き(LED2,2…の側が上方になる取付方向)に取付けられる照明装置100に設けられた流通孔31b,31b…を例に示している。   In the approximate center of the support cylinder fixing plate 31, a fixing hole 31a is provided which is rectangular and to which the support cylinder 1 is fixed. Further, the support cylinder fixing plate 31 is provided with a plurality of flow holes 31b, 31b,... At equal positions in the circumferential direction at positions where each of the through holes 31b, 31b,. is there. The support cylinder 1 is fixed in a state where one end side is inserted into the fixing hole 31a of the fixing base 3 and one end protrudes to the inside of the fixing base 3 by an appropriate length as shown in FIG. As a result, as shown in FIG. 4, the circumferential positions of the LEDs 2, 2... And the circulation holes 31 b, 31 b, are substantially the same, and the circulation holes 31 b, 31 b, are located between the translucent cover 4 and the support cylinder 1. To position. In the present embodiment, the flow holes 31b, 31b,... Provided in the lighting device 100 that is mounted upward (the mounting direction in which the LEDs 2, 2,.

固定台3には、有底円筒形をなし、光を透過する透光性収容体である透光性カバー4が、光源であるLED2,2…を内部に収容するように、支持筒固定板31の側に取付けてある。なお、図1においては、説明の便宜のため透光性カバー4を省略した照明装置100の外観斜視図を示しており、透光性カバー4を2点鎖線にて示している。透光性カバー4は、LED2,2…及び実装基板21,21…を覆って保護すると共に、LED2,2…からの光を透過させる。透光性カバー4は、例えば、耐衝撃性及び耐熱性に優れたポリカーボネート樹脂製であり、図3に示すように端部を固定台3に外嵌させて、固着してある。   The fixing base 3 has a bottomed cylindrical shape, and a translucent cover 4 which is a translucent container that transmits light accommodates the LEDs 2, 2. It is attached to the 31 side. In addition, in FIG. 1, the external appearance perspective view of the illuminating device 100 which abbreviate | omitted the translucent cover 4 for convenience of description is shown, and the translucent cover 4 is shown with the dashed-two dotted line. The translucent cover 4 covers and protects the LEDs 2, 2... And the mounting substrates 21, 21, and transmits light from the LEDs 2, 2. The translucent cover 4 is made of, for example, a polycarbonate resin excellent in impact resistance and heat resistance, and has an end portion fitted on the fixing base 3 and fixed thereto as shown in FIG.

また固定台3には、放熱部5が設けてある。放熱部5は、図3に示すように、円筒形状をなす放熱筒51と、該放熱筒51の一端に設けられ、貫通孔を有する円板状の放熱板52とを備えてなる。放熱部5は、アルミニウム等の金属製であり、一体成形してある。放熱部5は、放熱筒51の他端の側(開口の側)を固定台3の固定筒32に外嵌させて固定してある。これにより、LED2,2…からの熱が、実装基板21,21…を介して支持筒1に伝達され、更に固定台3を介して放熱部5に熱伝導により直接伝達されることになり、放熱部5から外部の空気に放散されることになる。なお、本実施の形態においては、支持筒1、固定台3及び放熱部5を夫々別体に構成してあるが、これに限定されず、2つ又は全部を一体成形してもよい。   Further, the fixing base 3 is provided with a heat radiating portion 5. As shown in FIG. 3, the heat radiating section 5 includes a cylindrical heat radiating cylinder 51 and a disk-shaped heat radiating plate 52 provided at one end of the heat radiating cylinder 51 and having a through hole. The heat dissipation part 5 is made of metal such as aluminum and is integrally formed. The heat radiating section 5 is fixed by fitting the other end side (opening side) of the heat radiating cylinder 51 to the fixed cylinder 32 of the fixing base 3. As a result, the heat from the LEDs 2, 2... Is transmitted to the support cylinder 1 through the mounting substrates 21, 21... And further directly transmitted to the heat radiating portion 5 through the fixed base 3 by heat conduction. It is dissipated from the heat dissipating part 5 to the outside air. In addition, in this Embodiment, although the support cylinder 1, the fixing stand 3, and the thermal radiation part 5 are each comprised separately, it is not limited to this, You may integrally mold two or all.

放熱部5の放熱板52の側には、絶縁リング6を介して有底円筒形状を有する口金7が設けてある。絶縁リング6は、電気絶縁性材料製であり、例えば、PBT(ポリブチレンテレフタレート)製である。この絶縁リング6は一面にて放熱板52の外面に当接させてある。口金7は、開口側の端縁を絶縁リング6の他面に当接した状態にて、絶縁リング6に固定してある。口金7は、電球用のソケットと螺合するための螺子加工が円筒部に施されてなる一極端子71と、口金7の底面に突設された他極端子72とを備えている。これら一極端子71と他極端子72とは絶縁してある。なお、口金7の円筒部の外形状は、例えばE17又はE26のねじ込み形口金と同一形状に形成してある。   On the side of the heat radiating plate 52 of the heat radiating portion 5, a base 7 having a bottomed cylindrical shape is provided via an insulating ring 6. The insulating ring 6 is made of an electrically insulating material, for example, made of PBT (polybutylene terephthalate). The insulating ring 6 is in contact with the outer surface of the heat sink 52 on one surface. The base 7 is fixed to the insulating ring 6 with the edge on the opening side in contact with the other surface of the insulating ring 6. The base 7 includes a one-pole terminal 71 having a cylindrical portion that is threaded to be screwed into a socket for a light bulb, and an other-pole terminal 72 that projects from the bottom surface of the base 7. These one-pole terminals 71 and other-pole terminals 72 are insulated. The outer shape of the cylindrical portion of the base 7 is formed in the same shape as the screw-type base of E17 or E26, for example.

放熱部5及び口金7により形成される空洞内には、固定台3を保持する中空保持部としての絶縁体8が設けてある。絶縁体8は、固定台を保持する固定台保持筒81と、口金7を保持する口金保持筒82とを備えている。固定台保持筒81は、円筒形状を有している。口金保持筒82は、円筒形状を有しており、固定台保持筒81に同心をなして設けてある。固定台保持筒81及び口金保持筒82は、電気絶縁性材料製であり、例えば、PBT(ポリブチレンテレフタレート)製であり、一体成形してある。この絶縁体8は、固定台保持筒81の開口の側を固定台3の固定筒32に内嵌させ、口金保持筒82を口金7の内部に挿入した状態にて、固定台3と一体化してある。なお、照明装置100は、組立状態において、図3に示すように、固定台保持筒81と口金保持筒82との連結部が放熱部5の放熱板52の内面に当接するように構成してある。   In the cavity formed by the heat radiating part 5 and the base 7, an insulator 8 is provided as a hollow holding part for holding the fixed base 3. The insulator 8 includes a fixed base holding cylinder 81 that holds the fixed base, and a base holding cylinder 82 that holds the base 7. The fixed base holding cylinder 81 has a cylindrical shape. The base holding cylinder 82 has a cylindrical shape and is provided concentrically with the fixed base holding cylinder 81. The fixing base holding cylinder 81 and the base holding cylinder 82 are made of an electrically insulating material, for example, made of PBT (polybutylene terephthalate), and are integrally formed. The insulator 8 is integrated with the fixing base 3 in a state where the opening side of the fixing base holding cylinder 81 is fitted into the fixing cylinder 32 of the fixing base 3 and the base holding cylinder 82 is inserted into the base 7. It is. In the assembled state, the lighting device 100 is configured such that the connecting portion between the fixed base holding cylinder 81 and the base holding cylinder 82 abuts the inner surface of the heat radiating plate 52 of the heat radiating section 5 as shown in FIG. is there.

以上の構成により、照明装置100の内部には、透光性カバー4、固定台3及び絶縁体8により密閉された空洞が形成される。この照明装置100の内部は、固定台3により2つの空洞(透光性カバー4の内部と絶縁体8の内部の空洞)に仕切られるとともに、これら2つの空洞が支持筒1及び流通孔31b,31b…により連通されることになり、照明装置100の内部には、支持筒1の内側及び外側に冷却媒体を流動させる冷却媒体流動路が形成される。   With the above configuration, a cavity sealed by the translucent cover 4, the fixing base 3, and the insulator 8 is formed inside the lighting device 100. The interior of the lighting device 100 is divided into two cavities (the interior of the translucent cover 4 and the interior of the insulator 8) by the fixing base 3, and these two cavities are divided into the support cylinder 1 and the flow holes 31b, 31b..., And a cooling medium flow path for flowing the cooling medium is formed inside and outside the support tube 1 inside the lighting device 100.

また、絶縁体8の固定台保持筒81の内部には、電源回路部9が収容してある。電源回路部9は、円板状の回路基板の上に複数の回路部品を実装してなる。この電源回路部9には、口金7の一極端子71及び他極端子72がリード線(図示せず)を介して電気的に接続してある。電源回路部9は、LED2,2…とリード線(図示せず)を介して電気的に接続してある。   A power supply circuit unit 9 is housed inside the fixed base holding cylinder 81 of the insulator 8. The power supply circuit unit 9 is formed by mounting a plurality of circuit components on a disk-shaped circuit board. One pole terminal 71 and another pole terminal 72 of the base 7 are electrically connected to the power supply circuit portion 9 via lead wires (not shown). The power supply circuit unit 9 is electrically connected to the LEDs 2, 2... Via lead wires (not shown).

図5は、実施の形態1に係る照明装置100の要部電気回路図である。電源回路部9には、100Vの商用交流電源(AC)200が電球用のソケット(図示せず)及び口金7を介して接続してある。口金7には、電源回路部9を構成する抵抗91の一端が接続してあり、該抵抗91にはスピードアップ用のコンデンサ92が並列接続してある。抵抗91の他端には、電流制限用の抵抗93の一端が接続してあり、抵抗93の他端には、商用交流電圧を全波整流するダイオードブリッジ94が接続してある。ダイオードブリッジ94の陽極側には、複数のLED2,2…を直列に接続してなる直列回路の一端が接続してある。該直列回路の他端は、ダイオードブリッジ94の陰極側に接続してある。   FIG. 5 is a main part electric circuit diagram of lighting apparatus 100 according to the first embodiment. A 100 V commercial AC power supply (AC) 200 is connected to the power supply circuit unit 9 via a socket (not shown) for a light bulb and a base 7. One end of a resistor 91 constituting the power supply circuit unit 9 is connected to the base 7, and a speed-up capacitor 92 is connected to the resistor 91 in parallel. One end of a current limiting resistor 93 is connected to the other end of the resistor 91, and a diode bridge 94 for full-wave rectifying the commercial AC voltage is connected to the other end of the resistor 93. One end of a series circuit formed by connecting a plurality of LEDs 2, 2... In series is connected to the anode side of the diode bridge 94. The other end of the series circuit is connected to the cathode side of the diode bridge 94.

以上のように構成された照明装置100は、口金7を電球用のソケットと螺合することにより、例えば上向き(LED2,2…の側が上方になる取付方向)に取付けられ、商用交流電源200に接続される。この状態にて、電源を投入したとき、口金7を介して交流電流が電源回路部9に供給され、ダイオードブリッジ94にて整流された直流電流がLED2,2…に供給され、LED2,2…が点灯する。   The lighting device 100 configured as described above is mounted, for example, upward (the mounting direction in which the LED 2, 2... Side is upward) by screwing the base 7 with a socket for a light bulb. Connected. In this state, when the power is turned on, an alternating current is supplied to the power supply circuit unit 9 through the base 7, a direct current rectified by the diode bridge 94 is supplied to the LEDs 2, 2. Lights up.

LED2,2…の点灯に応じて発生した熱は、実装基板21,21…に伝達され、更に支持筒1に伝達される。照明装置100は、前述したように、透光性カバー4、固定台3及び絶縁体8により形成された密閉された空洞を内部に有しており、透光性カバー4の内部と絶縁体8の内部を支持筒1及び流通孔31b,31b…により連通することによって形成された冷却媒体流動路を内部に有している。LED2,2…からの熱により暖められた冷却媒体である空気は、この冷却媒体流動路を自然対流により以下に説明するように循環することになる。   The heat generated in response to the lighting of the LEDs 2, 2... Is transmitted to the mounting boards 21, 21. As described above, the lighting device 100 has a sealed cavity formed by the translucent cover 4, the fixing base 3, and the insulator 8, and the inside of the translucent cover 4 and the insulator 8. Is provided with a cooling medium flow path formed by communicating the inside thereof with the support cylinder 1 and the flow holes 31b, 31b. The air that is the cooling medium warmed by the heat from the LEDs 2, 2... Circulates in this cooling medium flow path by natural convection as described below.

図6は、LED2,2…からの熱により生じる自然対流の説明図である。なお、照明装置100は、上向き(LED2,2…の側が上方になる取付方向)に取付けられており、生じた自然対流の上昇流を実線にて、下降流を破線にて夫々示している。   FIG. 6 is an explanatory diagram of natural convection caused by heat from the LEDs 2. The lighting device 100 is mounted upward (the mounting direction in which the LED 2, 2... Are on the upper side), and the generated natural convection upward flow is indicated by a solid line and the downward flow is indicated by a broken line.

LED2,2…からの熱により、LED2,2…の近傍の空気が暖められ、図に示すように、支持筒1の外面1aに取付けられた実装基板21,21…の一面21a,21a…に沿って上方に流動する上昇流が生じると共に、支持筒1の内面1bに沿って上方に流動する上昇流が生じる。このように透光性カバー4の内部の空気が、伝達された熱により暖められて支持筒1の内側及び外側に沿って上方に流動する一方、主として支持筒1の下方から絶縁体8の内部の空気が流入する。   The air in the vicinity of the LEDs 2, 2... Is warmed by the heat from the LEDs 2, 2..., As shown in the figure, on one surface 21 a, 21 a. As a result, an upward flow that flows upward along the inner surface 1b of the support cylinder 1 is generated, and an upward flow that flows upward along the inner surface 1b of the support cylinder 1 is generated. In this way, the air inside the translucent cover 4 is warmed by the transmitted heat and flows upward along the inside and outside of the support cylinder 1, while the interior of the insulator 8 mainly from below the support cylinder 1. Inflow of air.

一方、支持筒1の内側及び外側に沿って上昇した空気は、透光性カバー4に到達し、透光性カバー4を介して、外部の空気と熱交換がなされる。この結果、冷却された空気は、透光性カバー4の内面に沿って下方に流動する下降流となる。そして、透光性カバー4の内面に沿って下方に移動した空気は、固定台3の支持筒固定板31に設けられた流通孔31b,31b…を通過して、絶縁体8の内部に流入する。この結果、透光性カバー4、固定台3及び絶縁体8により形成された密閉された冷却媒体流動路内を、支持筒1の内側及び外側に沿って流動するように空気が循環することになる。   On the other hand, the air rising along the inner side and the outer side of the support cylinder 1 reaches the translucent cover 4, and heat exchange with the external air is performed through the translucent cover 4. As a result, the cooled air becomes a downward flow that flows downward along the inner surface of the translucent cover 4. Then, the air that has moved downward along the inner surface of the translucent cover 4 passes through the flow holes 31 b, 31 b... Provided in the support cylinder fixing plate 31 of the fixing base 3 and flows into the insulator 8. To do. As a result, the air circulates in the sealed cooling medium flow path formed by the translucent cover 4, the fixing base 3, and the insulator 8 so as to flow along the inside and outside of the support cylinder 1. Become.

実施の形態1に係る照明装置100の放熱特性について、シミュレーションにより確認を行い、以下の結果が得られた。実施の形態1に係る照明装置100と基本的な構成を同一とし、固定台3の支持筒固定板31に流通孔31b,31b…を有しない構成の照明装置の場合、LED2の温度は140.9(℃)であった。また、実施の形態1に係る照明装置100と基本的な構成を同一とし、固定台3の支持筒固定板31に流通孔31b,31b…を有せず、かつ支持筒1の両端を閉止した構成の照明装置の場合、LED2の温度は139.0(℃)であった。そして、実施の形態1に係る照明装置100の場合、LED2の温度は131.9(℃)であった。この結果から分かるように、自然対流により支持筒1の内側及び外側に沿って流動するように冷却媒体である空気を冷却媒体流動路内を循環させることにより、支持筒1を両面から、換言すると実装基板21,21…を両面から冷却することができ、該支持筒1に実装基板21,21…を介して設けられたLED2,2…からの熱を効率良く放散することができ、放熱性を向上することができる。なお、本シミュレーションは、照明装置を上向き(LED2,2…の側が上方になる取付方向)に取付け、LED2の一個当たりの発熱量が0.22(W/個)であり、周囲温度が25℃であるという条件下において実施した。   About the heat dissipation characteristic of the illuminating device 100 which concerns on Embodiment 1, it confirmed by simulation and the following results were obtained. In the case of an illuminating device having the same basic configuration as the illuminating device 100 according to the first embodiment and having no support holes 31b, 31b... In the support cylinder fixing plate 31 of the fixing base 3, the temperature of the LED 2 is 140. 9 (° C.). Further, the basic configuration is the same as that of the lighting device 100 according to the first embodiment, the support cylinder fixing plate 31 of the fixing base 3 does not have the flow holes 31b, 31b, and both ends of the support cylinder 1 are closed. In the case of the illumination device having the configuration, the temperature of the LED 2 was 139.0 (° C.). And in the case of the illuminating device 100 which concerns on Embodiment 1, the temperature of LED2 was 131.9 (degreeC). As can be seen from this result, by circulating the air as the cooling medium in the cooling medium flow path so as to flow along the inside and outside of the supporting cylinder 1 by natural convection, in other words, the supporting cylinder 1 from both sides. The mounting boards 21, 21... Can be cooled from both sides, and the heat from the LEDs 2, 2... Provided on the support cylinder 1 via the mounting boards 21, 21. Can be improved. In this simulation, the lighting device is mounted upward (the mounting direction in which the LEDs 2, 2... Are upward), the amount of heat generated per LED 2 is 0.22 (W / piece), and the ambient temperature is 25 ° C. It carried out on condition that it is.

実施の形態1に係る照明装置100においては、発熱部品である光源としてのLED2,2…を収容している透光性カバー4の内部と、該透光性カバー4よりも温度が低い中空保持部である絶縁体8の内部との間で、自然対流により冷却媒体流動路内を支持筒1の内側及び外側に沿って流動するように冷却媒体である空気を循環させることができ、LED2,2…からの熱は、冷却媒体である空気から透光性カバー4に伝達され、外部の空気に放散されることになる。この結果、支持筒1を内側と外側との両面から、換言すると実装基板21,21…を両面から冷却することができ、LED2,2…からの熱を効率良く放散することができ、放熱性を向上することができる。また、支持筒1の内側と外側とを同じように冷却することができるから、温度勾配の発生を抑制することができる。以上により、LED2,2…の温度上昇を抑制して、発光効率を高くすることができると共に、LED2,2…の寿命特性も良好にすることができる。また、絶縁体8の内部に収容されている電源回路部9からの熱も外部の空気に放散することができ、電源回路部9を構成する電子部品の性能を確保することができる。   In the lighting device 100 according to the first embodiment, the inside of the translucent cover 4 that houses the LEDs 2, 2... As light sources that are heat-generating components, and the hollow holding whose temperature is lower than that of the translucent cover 4. The air as the cooling medium can be circulated so as to flow along the inside and outside of the support cylinder 1 through the inside of the cooling medium flow path by natural convection between the inside of the insulator 8 as a part, The heat from 2 ... is transmitted from the air as the cooling medium to the translucent cover 4, and is dissipated to the outside air. As a result, the support tube 1 can be cooled from both the inside and the outside, in other words, the mounting substrates 21, 21... Can be cooled from both sides, and the heat from the LEDs 2, 2. Can be improved. Moreover, since the inner side and the outer side of the support cylinder 1 can be cooled in the same manner, generation of a temperature gradient can be suppressed. As described above, the temperature rise of the LEDs 2, 2... Can be suppressed, the luminous efficiency can be increased, and the life characteristics of the LEDs 2, 2. Moreover, the heat from the power supply circuit unit 9 accommodated in the insulator 8 can be dissipated to the outside air, and the performance of the electronic components constituting the power supply circuit unit 9 can be ensured.

また、実施の形態1に係る照明装置100においては、前述したように、放熱部5が固定台3に連設してあるから、LED2,2…からの熱が、実装基板21,21…を介して支持筒1に伝達され、更に固定台3を介して放熱部5に熱伝導により直接伝達され、放熱部5から外部の空気に放散される。これに加えて、前述した如く、照明装置100内部を自然対流により循環する空気により外部の空気に放散されるから、放熱性をさらに向上することができる。   Moreover, in the illuminating device 100 which concerns on Embodiment 1, since the thermal radiation part 5 was connected with the fixing base 3 as mentioned above, the heat | fever from LED2,2, ... Then, it is transmitted to the support cylinder 1 through the fixed base 3 and directly transmitted to the heat radiating portion 5 through the fixed base 3 by heat conduction, and is dissipated from the heat radiating portion 5 to the outside air. In addition to this, as described above, since the air circulated inside the lighting device 100 by natural convection is dissipated to the outside air, the heat dissipation can be further improved.

有底円筒形状を有する透光性カバー4の内部に四角筒状をなす支持筒1を略同心をなして設けてあるから、空気が通過する面積を支持筒1の長手方向の略全長に亘って略等しくすることができ、支持筒1の内側と外側を空気が円滑に循環するように自然対流を生ぜしめることができ、放熱性をさらに向上することができる。   Since the support cylinder 1 having a rectangular tube shape is provided substantially concentrically inside the translucent cover 4 having a bottomed cylindrical shape, the area through which the air passes covers substantially the entire length in the longitudinal direction of the support cylinder 1. Therefore, natural convection can be generated so that air smoothly circulates inside and outside the support cylinder 1, and heat dissipation can be further improved.

光源としてLEDを用いており、LEDは小型であり、配置設計の自由度が高いから、LEDを適切に支持筒1に配置することにより、LEDが発する熱を効率良く支持筒1の内側及び外側を流動する空気に伝達して外部の空気に放散することができる。   Since an LED is used as a light source and the LED is small and has a high degree of freedom in arrangement design, the heat generated by the LED can be efficiently arranged inside and outside the support cylinder 1 by appropriately arranging the LED on the support cylinder 1. Can be transmitted to the flowing air and dissipated to the outside air.

また、実施の形態1に係る照明装置100においては、照明装置100の密閉された冷却媒体流動路内を自然対流により循環する空気によりLED2,2…からの熱を放散するように構成してあるから、照明装置100の内部に、外部から埃、塵等が空洞に入り込み、電源回路部9に接触して引火又は故障が生じることを防ぐことができ、照明装置100の安全性及びメンテナンスの容易さという点で好ましい。   Moreover, in the illuminating device 100 which concerns on Embodiment 1, it is comprised so that the heat from LED2,2, ... may be dissipated with the air which circulates through the inside of the sealed cooling medium flow path of the illuminating device 100 by natural convection. Therefore, it is possible to prevent dust, dust, etc. from entering the inside of the lighting device 100 from the outside and coming into contact with the power supply circuit unit 9 to cause ignition or failure, and safety and easy maintenance of the lighting device 100 can be prevented. This is preferable.

(実施の形態2)
図7は、本発明の実施の形態2に係る照明装置110の模式的外観斜視図である。図8は、照明装置110の模式的分解斜視図である。図9は、照明装置110の模式的横断面図である。実施の形態2に係る照明装置110においては、実施の形態1に係る照明装置100とは異なる流通孔が設けられた固定台103を有している。
(Embodiment 2)
FIG. 7 is a schematic external perspective view of lighting apparatus 110 according to Embodiment 2 of the present invention. FIG. 8 is a schematic exploded perspective view of the illumination device 110. FIG. 9 is a schematic cross-sectional view of the lighting device 110. The illuminating device 110 according to Embodiment 2 has a fixed base 103 provided with a flow hole different from that of the illuminating device 100 according to Embodiment 1.

支持筒1を固定する固定台103は、円板状の支持筒固定板131と、該支持筒固定板131の周縁に立設され、放熱部5が固定される円筒状の固定筒132とを備えてなる扁平な有底円筒形状を有している。支持筒固定板131の略中央には、矩形状をなし、支持筒1が固定される固定孔131aが設けてある。   The fixing base 103 for fixing the supporting cylinder 1 includes a disk-shaped supporting cylinder fixing plate 131 and a cylindrical fixing cylinder 132 which is erected on the periphery of the supporting cylinder fixing plate 131 and to which the heat radiation part 5 is fixed. It has a flat bottomed cylindrical shape. In the approximate center of the support cylinder fixing plate 131, a rectangular shape is formed, and a fixing hole 131a to which the support cylinder 1 is fixed is provided.

また、支持筒固定板131には、冷却媒体が通過可能なように、略四分円状を有する複数の流通孔131b,131b…が固定孔131aの各隅に整合する位置に、周方向に等配をなして設けてある。この結果、組立状態においては、図9に示すように、LED2,2…が実装された実装基板21,21…が流通孔131b,131b…間に位置する。なお、本実施の形態においても、上向き(LED2,2…の側が上方になる取付方向)に取付けられる照明装置110に設けられた流通孔131b,131b…を例に示している。その他の構成は、図1から図6に示す実施の形態1と同様であるため、対応する構成部材に同一の参照符号を付して、その構成の詳細な説明を省略する。   Further, in the support cylinder fixing plate 131, in order to allow the cooling medium to pass therethrough, a plurality of circulation holes 131b, 131b,... Having a substantially quadrant shape are aligned with the corners of the fixing hole 131a in the circumferential direction. Evenly distributed. As a result, in the assembled state, as shown in FIG. 9, the mounting substrates 21, 21... On which the LEDs 2, 2. In the present embodiment as well, the flow holes 131b, 131b,... Provided in the illumination device 110 that is mounted upward (the mounting direction in which the LEDs 2, 2,. Since the other configuration is the same as that of the first embodiment shown in FIGS. 1 to 6, the same reference numerals are assigned to the corresponding structural members, and detailed description of the configuration is omitted.

実施の形態2に係る照明装置110の放熱特性について、シミュレーションにより確認を行い、以下の結果が得られた。実施の形態2に係る照明装置110と基本的な構成を同一とし、固定台103の支持筒固定板131に流通孔131b,131b…を有しない構成の照明装置の場合、LED2の温度は100.8(℃)であった。また、実施の形態2に係る照明装置110と基本的な構成を同一とし、固定台103の支持筒固定板131に流通孔131b,131b…を有せず、かつ支持筒1の両端を閉止した構成の照明装置の場合、LED2の温度は99.4(℃)であった。そして、実施の形態2に係る照明装置110の場合、LED2の温度は98.0(℃)であった。この結果から分かるように、自然対流により支持筒1の内側及び外側に沿って流動するように冷却媒体である空気を冷却媒体流動路内を循環させることにより、支持筒1を両面から、換言すると実装基板21,21…を両面から冷却することができ、該支持筒1に実装基板21,21…を介して設けられたLED2,2…からの熱を効率良く放散することができ、放熱性を向上することができる。なお、本シミュレーションは、照明装置を上向き(LED2,2…の側が上方になる取付方向)に取付け、LED2の一個当たりの発熱量が0.145(W/個)であり、周囲温度が25℃であるという条件下において実施した。   The heat dissipation characteristics of lighting apparatus 110 according to Embodiment 2 were confirmed by simulation, and the following results were obtained. In the case of an illuminating device having the same basic configuration as that of the illuminating device 110 according to the second embodiment and having no support holes 131b, 131b, etc. in the support tube fixing plate 131 of the fixing base 103, the temperature of the LED 2 is 100. 8 (° C.). Further, the basic configuration is the same as that of the illumination device 110 according to the second embodiment, the support cylinder fixing plate 131 of the fixing base 103 does not have the flow holes 131b, 131b, and both ends of the support cylinder 1 are closed. In the case of the illumination device having the configuration, the temperature of the LED 2 was 99.4 (° C.). And in the case of the illuminating device 110 which concerns on Embodiment 2, the temperature of LED2 was 98.0 (degreeC). As can be seen from this result, by circulating the air as the cooling medium in the cooling medium flow path so as to flow along the inside and outside of the supporting cylinder 1 by natural convection, in other words, the supporting cylinder 1 from both sides. The mounting boards 21, 21... Can be cooled from both sides, and the heat from the LEDs 2, 2... Provided on the support cylinder 1 via the mounting boards 21, 21. Can be improved. In this simulation, the lighting device is mounted upward (the mounting direction in which the LEDs 2, 2,... Are on the upper side), the amount of heat generated per LED 2 is 0.145 (W / piece), and the ambient temperature is 25 ° C. It carried out on condition that it is.

実施の形態2に係る照明装置110においても、実施の形態1に係る照明装置100と同様に、発熱部品である光源としてのLED2,2…を収容している透光性カバー4の内部と、該透光性カバー4よりも温度が低い中空保持部である絶縁体8の内部との間で、自然対流により冷却媒体流動路内を支持筒1の内側及び外側に沿って流動するように冷却媒体である空気を循環させることができ、LED2,2…からの熱は、冷却媒体である空気から透光性カバー4に伝達され、外部の空気に放散されることになる。この結果、支持筒1を内側と外側との両面から、換言すると実装基板21,21…を両面から冷却することができ、LED2,2…からの熱を効率良く放散することができ、放熱性を向上することができる。また、支持筒1の内側と外側とを同じように冷却することができるから、温度勾配の発生を抑制することができる。以上により、LED2,2…の温度上昇を抑制して、発光効率を高くすることができると共に、LED2,2…の寿命特性も良好にすることができる。また、絶縁体8の内部に収容されている電源回路部9からの熱も外部の空気に放散することができ、電源回路部9を構成する電子部品の性能を確保することができる。   Also in the illumination device 110 according to the second embodiment, as in the illumination device 100 according to the first embodiment, the inside of the translucent cover 4 that houses the LEDs 2, 2,... Cooling is performed so that the inside of the cooling medium flow path flows along the inside and outside of the support cylinder 1 by natural convection with the inside of the insulator 8 which is a hollow holding portion whose temperature is lower than that of the translucent cover 4. The air as the medium can be circulated, and the heat from the LEDs 2, 2... Is transmitted from the air as the cooling medium to the translucent cover 4 and dissipated to the outside air. As a result, the support tube 1 can be cooled from both the inside and the outside, in other words, the mounting substrates 21, 21... Can be cooled from both sides, and the heat from the LEDs 2, 2. Can be improved. Moreover, since the inner side and the outer side of the support cylinder 1 can be cooled in the same manner, generation of a temperature gradient can be suppressed. As described above, the temperature rise of the LEDs 2, 2... Can be suppressed, the luminous efficiency can be increased, and the life characteristics of the LEDs 2, 2. Moreover, the heat from the power supply circuit unit 9 accommodated in the insulator 8 can be dissipated to the outside air, and the performance of the electronic components constituting the power supply circuit unit 9 can be ensured.

なお、以上の実施の形態においては、支持筒1は四角筒形状を有するとしているが、支持筒の形状はこれに限定されず、筒体であればよい。また、以上の実施の形態においては、透光性カバー4は有底円筒形状を有するとしているが、透光性カバーの形状はこれに限定されず、支持筒1を収容することが可能な形状であればよく、例えば、中空球形状でもよい。但し、透光性カバーの支持筒の長手方向に沿った面積の変化は緩やかであることが望ましい。   In the above embodiment, the support cylinder 1 has a quadrangular cylindrical shape, but the shape of the support cylinder is not limited to this, and may be a cylindrical body. Moreover, in the above embodiment, although the translucent cover 4 has a bottomed cylindrical shape, the shape of the translucent cover is not limited to this, and is a shape that can accommodate the support cylinder 1. For example, a hollow sphere shape may be used. However, it is desirable that the change in the area along the longitudinal direction of the support tube of the translucent cover is gradual.

また、以上の実施の形態において示した流通孔は一例であり、これに限定されない。流通孔は、支持筒の内側及び外側に沿って上昇流が、透光性カバーの内側に沿って下降流が生じるように適切に設けてあればよい。以上の実施の形態の照明装置においては、流通孔を固定台の支持筒固定板に設けてあるが、支持筒1の下方(但し、支持筒固定板よりも上方)に設けてもよく、この場合においても放熱性の向上に寄与する。   Moreover, the flow hole shown in the above embodiment is an example, and is not limited to this. The flow hole may be appropriately provided so that the upward flow is generated along the inner side and the outer side of the support tube and the downward flow is generated along the inner side of the translucent cover. In the illuminating device of the above embodiment, the flow hole is provided in the support cylinder fixing plate of the fixed base, but may be provided below the support cylinder 1 (but above the support cylinder fixing plate). Even in the case, it contributes to the improvement of heat dissipation.

また、以上の実施の形態においては、絶縁体8が固定台を保持する中空保持部として機能するように構成してあるが、これに限定されず、放熱部5を中空保持部として機能するように構成してもよいし、固定台と中空保持部とを一体的に設けてもよい。   Further, in the above embodiment, the insulator 8 is configured to function as a hollow holding portion that holds the fixing base. However, the present invention is not limited thereto, and the heat radiating portion 5 functions as a hollow holding portion. The fixing base and the hollow holding portion may be provided integrally.

また、以上の実施の形態においては、照明装置内部の密閉された冷却媒体流動路内を空気が循環するようにしてあるが、冷却媒体は空気に限定されない。   In the above embodiment, air circulates in a sealed cooling medium flow path inside the lighting device, but the cooling medium is not limited to air.

また、以上の実施の形態においては、光源として表面実装型LEDを用いているが、これに限定されず、他のタイプのLED、EL(Electro Luminescence)等を用いてもよい。   Further, in the above embodiment, the surface mount type LED is used as the light source. However, the present invention is not limited to this, and other types of LEDs, EL (Electro Luminescence), and the like may be used.

また、以上の実施の形態においては、電球用のソケットに取付ける照明装置を例に説明したが、前述した放熱機構はこのような照明装置に限定されず、他のタイプの照明装置、照明装置以外の発熱体を備える機器にも適用可能であり、その他、特許請求の範囲に記載した事項の範囲内において種々変更した形態にて実施することが可能であることは言うまでもない。   In the above embodiment, the lighting device attached to the socket for the light bulb has been described as an example. However, the heat dissipation mechanism described above is not limited to such a lighting device, but other types of lighting devices and lighting devices. Needless to say, the present invention can be applied to a device including the heating element, and can be implemented in variously modified forms within the scope of the matters described in the claims.

本発明の実施の形態1に係る照明装置の模式的外観斜視図である。It is a typical external appearance perspective view of the illuminating device which concerns on Embodiment 1 of this invention. 照明装置の模式的分解斜視図である。It is a typical exploded perspective view of an illuminating device. 照明装置の模式的縦断面図である。It is a typical longitudinal cross-sectional view of an illuminating device. 図3のIV−IV線による模式的断面図である。It is typical sectional drawing by the IV-IV line of FIG. 実施の形態1に係る照明装置の要部電気回路図である。FIG. 3 is a main part electric circuit diagram of the lighting apparatus according to Embodiment 1; LEDからの熱により生じる自然対流の説明図である。It is explanatory drawing of the natural convection which arises with the heat | fever from LED. 本発明の実施の形態2に係る照明装置の模式的外観斜視図である。It is a typical external appearance perspective view of the illuminating device which concerns on Embodiment 2 of this invention. 照明装置の模式的分解斜視図である。It is a typical exploded perspective view of an illuminating device. 照明装置の模式的横断面図である。It is a typical cross-sectional view of an illuminating device.

符号の説明Explanation of symbols

1 支持筒
2 LED(光源)
3,103 固定台(固定部)
31b,131b 流通孔
4 透光性カバー(透光性収容体)
5 放熱部
8 絶縁体(中空保持部)
1 Support tube 2 LED (light source)
3,103 fixed base (fixed part)
31b, 131b Flow hole 4 Translucent cover (translucent container)
5 Heat dissipation part 8 Insulator (hollow holding part)

Claims (6)

光源と、該光源を内部に収容し、前記光源からの光を透過する透光性収容体とを備える照明装置において、前記光源を支持する支持筒と、該支持筒の内側及び外側に冷却媒体を流動させる冷却媒体流動路とを備えることを特徴とする照明装置。   In a lighting device including a light source and a light-transmitting container that houses the light source and transmits light from the light source, a support cylinder that supports the light source, and a cooling medium inside and outside the support cylinder And a cooling medium flow path for causing the liquid to flow. 前記支持筒を固定する固定部を備え、該固定部には前記冷却媒体を通過させる流通孔を設けてあることを特徴とする請求項1に記載の照明装置。   The lighting device according to claim 1, further comprising: a fixing portion that fixes the support cylinder, wherein the fixing portion is provided with a flow hole through which the cooling medium passes. 前記固定部を保持し、内部に空洞を有する中空保持部を備えており、前記透光性収容体及び中空保持部の内部を前記支持筒及び流通孔により連通させてあることを特徴とする請求項2に記載の照明装置。   A hollow holding part that holds the fixing part and has a cavity therein is provided, and the inside of the translucent container and the hollow holding part are communicated with each other by the support cylinder and the flow hole. Item 3. The lighting device according to Item 2. 前記固定部に連設され、前記光源からの熱を放散する放熱部を備えていることを特徴とする請求項2または3に記載の照明装置。   The lighting device according to claim 2, further comprising a heat dissipating unit that is connected to the fixing unit and dissipates heat from the light source. 前記透光性収容体は有底円筒形状をなし、前記透光性収容体及び支持筒は略同心的に配置してあることを特徴とする請求項1から4の何れか一つに記載の照明装置。   5. The light-transmitting container has a bottomed cylindrical shape, and the light-transmitting container and the support tube are disposed substantially concentrically. Lighting device. 前記光源はLEDであることを特徴とする請求項1から5の何れか一つに記載の照明装置。   The lighting device according to claim 1, wherein the light source is an LED.
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CN103225760A (en) * 2013-05-15 2013-07-31 海门市浩洋电光源科技有限公司 LED (Light Emitting Diode) lamp with uniform emergent rays
KR101561253B1 (en) 2013-06-12 2015-10-19 주식회사 지앤씨 Led lighting fixture having dual-heat-radiating structure
WO2015058415A1 (en) * 2013-10-25 2015-04-30 陈鸿文 Hollow led lamp having vertically capless passage
JP2014078523A (en) * 2013-12-20 2014-05-01 Iwasaki Electric Co Ltd LED lamp
WO2015098383A1 (en) * 2013-12-26 2015-07-02 岩崎電気株式会社 Led lamp
JP2017505978A (en) * 2014-01-29 2017-02-23 フィリップス ライティング ホールディング ビー ヴィ LED bulb
JP2015162414A (en) * 2014-02-28 2015-09-07 岩崎電気株式会社 Led lamp
JP2015162413A (en) * 2014-02-28 2015-09-07 岩崎電気株式会社 Led lamp and heat sink used for the same
WO2015129419A1 (en) * 2014-02-28 2015-09-03 岩崎電気株式会社 Led lamp
WO2015129420A1 (en) * 2014-02-28 2015-09-03 岩崎電気株式会社 Led lamp and heat sink used in same
JP2017501548A (en) * 2014-10-30 2017-01-12 正屋(廈門)電子有限公司 Bulb type lamp structure
CN105258032A (en) * 2015-11-12 2016-01-20 中投仙能科技(苏州)有限公司 Backflow air-cooled type street lamp based on narrow pipe effect
FR3070475A1 (en) * 2017-08-31 2019-03-01 Inventys LIGHTING BALL
EP3450835A1 (en) * 2017-08-31 2019-03-06 Inventys Luminous balloon
USD869746S1 (en) 2018-03-30 2019-12-10 Abl Ip Holding Llc Light fixture base
US10718506B2 (en) 2018-03-30 2020-07-21 Abl Ip Holding Llc Luminaire with adapter collar
US10794584B2 (en) 2018-03-30 2020-10-06 Abl Ip Holding Llc Luminaire with thermal control
USD910229S1 (en) 2018-03-30 2021-02-09 Abl Ip Holding Llc Light fixture base
US11015797B2 (en) 2018-03-30 2021-05-25 Abl Ip Holding Llc Luminaire with wireless node
CN113946083A (en) * 2021-12-20 2022-01-18 深圳市爱图仕影像器材有限公司 Lighting device

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