JP2011187220A - Illumination device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illumination device in which heat generation components such as a light source and a power supply circuit can dissipate heat respectively without thermally affecting each other. <P>SOLUTION: The illumination device includes: a light source module 3; the power supply circuit 6 to supply electric power to the light source module 3; and a heat dissipation portion 1 to dissipate heat from the power supply circuit 6 and the light source module 3. The heat dissipation portion 1 includes: the heat dissipation portion body 11 to dissipate heat from the light source module 3; and a mounted portion 12 which is mounted on the power supply circuit 6 and dissipates heat from the power supply circuit 6 to the outside. The mounted portion 12 and the heat dissipation portion body 11 are thermally separated. By this, heat from the light source module 3 becomes hard to be transferred to the mounted portion 12 from the heat dissipation portion body 11, and heat from the light source module 3 becomes difficult to affect the power supply circuit 6. Accordingly, the mounted portion 12 and the heat dissipation portion body 11 can dissipate heat independently without thermal effect to each other. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、天井や壁等の設置部に取付けされる照明装置に関する。   The present invention relates to a lighting device attached to an installation part such as a ceiling or a wall.

天井や壁等の設置部に開口された取り付け穴に取付けられる照明装置として、所謂ダウンライト等の埋め込式照明装置が知られている。（例えば、特許文献１参照）
上記特許文献１の照明装置２００は、図１５に示すような光源２０１の点灯電流を制御する電源装置２０２を装置本体２０３の基板収容部２０３ａに収容するダウンライトである。照明装置２００は、装置本体２０３の底壁２０４に光源２０１を設け、電源装置２０２が前記基板収容部２０３ａを塞ぐ天板２０５に吊持されてある。
このように構成された照明装置２００は、電源装置２０２が発熱源である光源２０１から隔てられる。従って電源装置２０２が実装する電気部品２０２ａに前記光源２０１からの熱が伝わりにくくなり、熱に弱い電気部品２０２ａの劣化が抑制されることになる。 An embedded illumination device such as a so-called downlight is known as an illumination device that is attached to an attachment hole opened in an installation part such as a ceiling or a wall. (For example, see Patent Document 1)
The illumination device 200 disclosed in Patent Document 1 is a downlight that houses a power supply device 202 that controls the lighting current of the light source 201 as shown in FIG. The illuminating device 200 is provided with a light source 201 on the bottom wall 204 of the apparatus main body 203, and a power supply device 202 is suspended by a top plate 205 that closes the substrate housing portion 203a.
In the illumination device 200 configured as described above, the power supply device 202 is separated from the light source 201 which is a heat generation source. Therefore, heat from the light source 201 is hardly transmitted to the electric component 202a mounted on the power supply device 202, and deterioration of the electric component 202a that is weak against heat is suppressed.

特開２００９−６４７８１号公報JP 2009-64781 A

しかしながら、上記照明装置２００は、前記電気部品２０２ａが光源２０１からの熱の影響を受けにくくしてあるが、電源装置２０２から発生する熱の放熱について全く考慮されていない。従って、電源装置２０２からの熱は基板収容部２０３ａに篭り照明装置として十分に放熱できないという問題があった。
特に照明装置の光量を大きくするために、高出力型の発光ダイオード（以下、ＬＥＤと記す）や、チップＬＥＤを高密度に集積したモジュール等を搭載しようとすると従来装置で用いられていた電源装置よりも出力が大きい電源装置が必要となる。この場合電源装置から発生する熱も大きくなるので、電源装置からの熱を十分に放熱できないと、例えば電源装置に実装される電気部品が熱により劣化してしまい、照明装置の寿命を短くする虞がある。従って電源装置の熱を十分に放熱できる構造が必要となる。 However, in the lighting device 200, the electrical component 202a is less susceptible to the influence of heat from the light source 201, but no consideration is given to heat radiation generated from the power supply device 202. Therefore, there has been a problem that heat from the power supply device 202 cannot be sufficiently radiated as a lighting device over the substrate housing portion 203a.
In particular, in order to increase the amount of light of the lighting device, a power supply device used in a conventional device when attempting to mount a high-power light emitting diode (hereinafter referred to as LED), a module in which chip LEDs are integrated at a high density, or the like. Therefore, a power supply device having a larger output than that is required. In this case, since the heat generated from the power supply device also increases, if the heat from the power supply device cannot be sufficiently dissipated, for example, electrical components mounted on the power supply device may be deteriorated by heat, and the life of the lighting device may be shortened. There is. Therefore, a structure that can sufficiently dissipate the heat of the power supply device is required.

本発明は斯かる事情に鑑みてなされたものであり、光源や電源回路等の発熱部品が互いに熱的に影響を及ぼし合うことなく、夫々独立に放熱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。   The present invention has been made in view of such circumstances, and it is an object of the present invention to provide an illuminating device capable of independently dissipating heat without causing heat generating components such as a light source and a power supply circuit to thermally affect each other. Objective.

本発明に係る照明装置は、光源と、該光源に電力を供給する電源回路と、該電源回路及び前記光源からの熱を放熱する放熱部とを備える照明装置であって、前記放熱部は、前記光源からの熱を放熱する放熱部本体と、前記電源回路を装着し前記電源回路からの熱を外部に放熱する被装着部からなり、前記被装着部と前記放熱部本体は熱的に分離してあることを特徴とする。   An illumination device according to the present invention is a lighting device including a light source, a power supply circuit that supplies power to the light source, and a heat dissipation unit that dissipates heat from the power supply circuit and the light source. A heat dissipating part body that dissipates heat from the light source and a mounted part that mounts the power supply circuit and dissipates heat from the power supply circuit to the outside. The mounted part and the heat dissipating part body are thermally separated. It is characterized by being.

本発明にあっては、光源及び電源回路（上記背景技術の電源装置に相当）からの熱を放熱する放熱部において、光源からの熱を放熱する放熱部本体と、電源回路を装着し該電源回路からの熱を放熱する被装着部とを熱的に分離するように設けてある。これにより放熱部から被装着部に熱が、伝わりにくくなるため、光源からの熱の影響が電源回路へ及びにくくなる。従って、被装着部と放熱部本体は夫々独立して外部へ放熱することが可能となる。   In the present invention, in a heat radiating part for radiating heat from a light source and a power supply circuit (corresponding to the power supply device of the background art), a heat radiating part main body for radiating heat from the light source and a power supply circuit are mounted and the power source It is provided so as to thermally separate the mounted portion that radiates heat from the circuit. This makes it difficult for heat to be transmitted from the heat radiating portion to the mounted portion, so that the influence of heat from the light source does not easily reach the power supply circuit. Therefore, the mounted portion and the heat radiating portion main body can radiate heat to the outside independently of each other.

本発明に係る照明装置は、光源と、該光源に電力を供給する電源回路と、前記光源からの熱を放熱する放熱部本体と、前記電源回路を装着し、前記電源回路からの熱を外部に放熱する被装着部とを備える照明装置であって、前記放熱部本体及び前記被装着部により前記電源回路を収容する収容部を形成し、前記放熱部本体と前記被装着部は熱的に分離され、夫々独立に放熱するようにしてあることを特徴とする。   An illumination device according to the present invention includes a light source, a power supply circuit that supplies power to the light source, a heat dissipating unit body that dissipates heat from the light source, and the power supply circuit, and the heat from the power supply circuit is externally applied. And a mounted portion for radiating heat, wherein the heat radiating portion main body and the mounted portion form an accommodating portion for accommodating the power supply circuit, and the heat radiating portion main body and the mounted portion are thermally It is characterized by being separated and radiating heat independently.

本発明にあっては、前記被装着部が、前記放熱部本体と共に前記電源回路を収容する収容部を形成し、かつ前記放熱部本体と熱的に分離される。これにより、前記被装着部が前記光源からの熱を放熱する前記放熱部本体に近接していても、前記被装着部と前記放熱部は夫々独立に放熱することが可能となる。   In the present invention, the mounted portion forms a housing portion that houses the power supply circuit together with the heat radiating portion body, and is thermally separated from the heat radiating portion body. Thereby, even if the said to-be-mounted part adjoins to the said heat radiating part main body which radiates the heat | fever from the said light source, it becomes possible to radiate | emit heat to the said to-be-mounted part and the said heat radiating part each independently.

本発明に係る照明装置は、前記被装着部は、前記放熱部本体に着脱自在に設けてあることを特徴とする。   The illuminating device according to the present invention is characterized in that the mounted portion is detachably provided on the heat radiating portion main body.

本発明にあっては、前記被装着部が前記放熱部本体に着脱自在に設けてあるので、前記被装着部と前記放熱部本体との間に隙間を設けることができる。これにより該隙間に介在する空気層が断熱作用をもたらし、前記放熱部本体と前記被装着部の間で熱が伝わりにくくすることが可能となる。   In this invention, since the said to-be-attached part is provided in the said thermal radiation part main body so that attachment or detachment is possible, a clearance gap can be provided between the said to-be-mounted part and the said thermal radiation part main body. As a result, the air layer interposed in the gap provides a heat insulating action, and it is possible to make it difficult for heat to be transmitted between the heat radiating portion main body and the mounted portion.

本発明に係る照明装置は、前記電源回路は、発熱部品を有し、該発熱部品が前記被装着部に熱的に接続するようにしてあることを特徴とする。   In the lighting device according to the present invention, the power supply circuit includes a heat generating component, and the heat generating component is thermally connected to the mounted portion.

本発明にあっては、前記電源回路が有する発熱部品を前記被装着部に熱的に接続する。これにより発熱部品からの熱を被装着部へ伝導する効率を高めることが可能となる。   In the present invention, the heat generating component of the power supply circuit is thermally connected to the mounted portion. Thereby, it is possible to increase the efficiency of conducting heat from the heat generating component to the mounted portion.

本発明に係る照明装置は、前記被装着部は、前記電源回路を装着した状態で前記放熱部本体の周壁の一部をなすべく、前記放熱部本体に設けてあることを特徴とする。   The illuminating device according to the present invention is characterized in that the mounted portion is provided in the heat radiating portion main body so as to form a part of a peripheral wall of the heat radiating portion main body in a state where the power supply circuit is mounted.

本発明にあっては、前記被装着部が、前記電源回路を装着した状態で前記放熱部本体の周壁の一部をなすべく、前記電源回路に設けてあることで、前記被装着部が外気に接して設けられることになる。これにより被装着部に伝導した熱が直接外部の空気へ放熱されるため、電源回路からの熱の放熱効率が良好になる。さらに、前記電源回路は容易に被装着部ごと放熱部本体へ取り付け及び取り外しすることができるため、分解及び組立作業を簡略化することが可能となる。   In the present invention, the attached portion is provided in the power supply circuit so as to form a part of the peripheral wall of the heat radiating portion main body in a state where the power supply circuit is attached. It will be provided in contact with. As a result, the heat conducted to the mounted portion is directly radiated to the outside air, so that the heat radiation efficiency from the power supply circuit is improved. Furthermore, since the power supply circuit can be easily attached to and detached from the heat radiating part main body together with the mounted part, it is possible to simplify the disassembling and assembling work.

本発明に係る照明装置は、前記被装着部と前記放熱部本体の間に断熱材を設けてあることを特徴とする。   The illumination device according to the present invention is characterized in that a heat insulating material is provided between the mounted portion and the heat radiating portion main body.

本発明にあっては、前記被装着部と、前記放熱部本体との間で断熱材を設けることで、互いに熱が伝わりにくい状態となり、放熱部本体と被装着部を熱的に分離することが出来る。   In the present invention, by providing a heat insulating material between the mounted portion and the heat radiating portion main body, heat is hardly transmitted to each other, and the heat radiating portion main body and the mounted portion are thermally separated. I can do it.

本発明に係る照明装置は、前記被装着部は、前記電源回路が装着される一面以外の面に端子台を設置してあることを特徴とする。   The lighting device according to the present invention is characterized in that the mounted portion has a terminal block on a surface other than the one surface on which the power supply circuit is mounted.

本発明にあっては、前記被装着部が前記電源回路だけでなく前記端子台の設置部としても機能することで、部品点数を削減できると共に、照明装置を軽量化することが可能となる。   In the present invention, the mounted portion functions not only as the power supply circuit but also as the installation portion of the terminal block, so that the number of parts can be reduced and the lighting device can be reduced in weight.

本発明に係る照明装置は、前記放熱部本体は、前記被装着部の周縁の少なくとも一部との間で浸水防止用のリブを有することを特徴とする。   The illuminating device according to the present invention is characterized in that the heat dissipating part main body has a rib for preventing inundation between at least a part of the periphery of the mounted part.

本発明にあっては、前記放熱部本体が、浸水防止用のリブを有することで、前記放熱部本体と前記被装着部との間で隙間が生じる場合でも、リブの高さまで浸水を防止することが可能となる。   In the present invention, the heat radiating portion main body has a rib for preventing inundation, so that even if a gap is generated between the heat radiating portion main body and the mounted portion, water is prevented to the height of the rib. It becomes possible.

本発明に係る照明装置は、前記放熱部は、外気との接触面積を広げるためのピン状のフィンを有することを特徴とする。   The illuminating device according to the present invention is characterized in that the heat dissipating part has pin-shaped fins for expanding the contact area with the outside air.

本発明にあっては、前記放熱部がピン状のフィンを有することで、フィンからの対流による放熱が照明装置周辺の空気の流れの向きに依存しないため、放熱効率が良好になる。   In this invention, since the said heat radiating part has a pin-shaped fin, since the heat radiation by the convection from a fin does not depend on the direction of the air flow around an illuminating device, heat dissipation efficiency becomes favorable.

本発明によれば、光源や電源回路等の発熱する部品が互いに熱的に影響を及ぼし合うことなく、夫々独立して放熱することが可能となる。   According to the present invention, heat generating components such as a light source and a power circuit can radiate heat independently without affecting each other.

本発明の実施形態を示す照明装置の分解斜視図である。It is a disassembled perspective view of the illuminating device which shows embodiment of this invention. 同照明装置の外観斜視図である。It is an external appearance perspective view of the illumination device. 同照明装置の縦断面図である。It is a longitudinal cross-sectional view of the illuminating device. 同照明装置の図９におけるＡ−Ａ線断面図である。It is the sectional view on the AA line in FIG. 9 of the illuminating device. 図１の被装着部の放熱部本体への設置方法を示す縦断面図である。It is a longitudinal cross-sectional view which shows the installation method to the thermal radiation part main body of the to-be-mounted part of FIG. 図１の放熱部本体の縦断面斜視図である。It is a longitudinal cross-sectional perspective view of the thermal radiation part main body of FIG. 図１のバネの拡大図である。It is an enlarged view of the spring of FIG. 同照明装置の外観背面図である。It is an external appearance rear view of the illumination device. 同照明装置の外観側面図である。It is an external appearance side view of the illumination device. 図１の放熱部本体の縦断面図である。It is a longitudinal cross-sectional view of the thermal radiation part main body of FIG. 同照明装置の外観下面図である。It is an external appearance bottom view of the illumination device. 図１の透過板、反射板及び光源モジュールの接続関係を示す拡大斜視図である。It is an expansion perspective view which shows the connection relation of the transmissive plate of FIG. 1, a reflecting plate, and a light source module. 図１の端子台及び電源回路と、被装着部の接続関係を示す拡大斜視図である。It is an expansion perspective view which shows the connection relationship of the to-be-attached part, and the terminal block and power supply circuit of FIG. 図１の被装着部と放熱部本体の接続関係を示す縦断面図である。It is a longitudinal cross-sectional view which shows the connection relation of the to-be-mounted part of FIG. 1, and a thermal radiation part main body. 従来の照明装置の縦断面図である。It is a longitudinal cross-sectional view of the conventional illuminating device.

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。   Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof.

実施の形態に係る照明装置１００は、図１に示すように、放熱部１と、光源モジュール３と、光源モジュール３に電力を供給する電源回路６と、光源モジュール３を覆う反射板４と、反射板４を覆う透過板５とを備える。   As shown in FIG. 1, the illumination device 100 according to the embodiment includes a heat radiating unit 1, a light source module 3, a power supply circuit 6 that supplies power to the light source module 3, a reflector 4 that covers the light source module 3, And a transmission plate 5 that covers the reflection plate 4.

放熱部１は、図１及び図２に示すように有底円筒状の放熱部本体１１と、放熱部本体１１の周壁の一部をなす被装着部１２からなる。また光源モジュール３は伝熱シート２を介して後述する放熱部本体１１の底板部１６に接続される。放熱部本体１１と被装着部１２は、電源回路６を収容する電源回路収容部１ａを形成する。被装着部１２には絶縁シート７を介して電源回路６が装着される。また、被装着部１２の電源回路６が装着される面の反対側の面には端子台８が装着される。端子台８は電源端子台８１と調光端子台８２からなる。放熱部１の光源モジュール３の設置側と反対側には、電源回路収容部１ａを塞ぐ天板９と、電源端子台８１を保護するターミナルカバー８３が設けられる。   As shown in FIGS. 1 and 2, the heat radiating portion 1 includes a bottomed cylindrical heat radiating portion main body 11 and a mounted portion 12 that forms a part of the peripheral wall of the heat radiating portion main body 11. The light source module 3 is connected to the bottom plate portion 16 of the heat radiating portion main body 11 to be described later via the heat transfer sheet 2. The heat dissipating part main body 11 and the mounted part 12 form a power circuit accommodating part 1 a that accommodates the power circuit 6. The power supply circuit 6 is mounted on the mounted portion 12 via the insulating sheet 7. A terminal block 8 is mounted on the surface of the mounted portion 12 opposite to the surface on which the power supply circuit 6 is mounted. The terminal block 8 includes a power terminal block 81 and a dimming terminal block 82. On the side opposite to the installation side of the light source module 3 of the heat radiating unit 1, a top plate 9 that closes the power circuit housing unit 1 a and a terminal cover 83 that protects the power terminal block 81 are provided.

放熱部１は光源であるＬＥＤ３２，３２…からの熱を放熱する放熱部本体１１及び電源回路６からの熱を放熱する被装着部１２からなる。放熱部１は熱伝導の良好なアルミニウム等の金属製である。放熱部１を構成する放熱部本体１１は、図３に示すように有底円筒状の筒部１３と、筒部１３の一端１３ａ側の周縁に設けられたフランジ部１４と筒部１３の周壁の複数箇所に設けられるバネ１５とを備えている。さらに筒部１３の底部をなす底板部１６が放熱部本体１１に設けてある。底板部１６は、放熱部１を電源回路６を収容する電源回路収容部１ａと、該電源回路収容部１ａよりも拡径され光源モジュール３を収容する光源収容部１ｂの２つの空間に区画するように設けてある。なお、放熱部本体１１の筒部１３、フランジ部１４及び底板部１６はアルミダイカストにより一体成型される。   The heat dissipating unit 1 includes a heat dissipating unit main body 11 that dissipates heat from the LEDs 32, 32... That are light sources, and a mounted portion 12 that dissipates heat from the power supply circuit 6. The heat dissipating part 1 is made of metal such as aluminum having good heat conduction. As shown in FIG. 3, the heat dissipating part main body 11 constituting the heat dissipating part 1 includes a bottomed cylindrical tubular part 13, a flange part 14 provided on the peripheral edge of the tubular part 13 on the one end 13 a side, and a peripheral wall of the tubular part 13. And springs 15 provided at a plurality of locations. Further, a bottom plate portion 16 that forms the bottom of the tube portion 13 is provided in the heat radiating portion main body 11. The bottom plate 16 divides the heat radiating section 1 into two spaces: a power circuit housing section 1 a that houses the power circuit 6 and a light source housing section 1 b that is larger in diameter than the power circuit housing section 1 a and houses the light source module 3. It is provided as follows. In addition, the cylinder part 13, the flange part 14, and the baseplate part 16 of the thermal radiation part main body 11 are integrally molded by aluminum die casting.

図１及び図４に示すように、筒部１３には、前記電源回路収容部１ａを囲む周壁の一部が開いた開放部が設けられ、該開放部に被装着部１２を取付けられるようにしてある。図５及び図６に示す前記開放部の両端の内側には、ボス部１３ｄ，１３ｄが形成されている。ボス部１３ｄ，１３ｄの上面には、ねじ穴１３１と凸部１３２が設けられている。被装着部１２は、前記凸部１３２を後述する被装着部１２の固定板部１２ｄの貫通孔１２に嵌合し、ねじ穴１３１と他方の貫通孔１２１をねじで固定して放熱部本体１１に取り付けられる。なお、被装着部１２の左右の両端１２ｈ，１２ｈと筒部１３の内壁の間には断熱作用を有する空気層を介在するための隙間が設けられている。これにより被装着部１２と放熱部本体１１は互いに熱が伝わりにくく構成されている。さらに、前記隙間には後述する断熱材を設けることが可能である。   As shown in FIGS. 1 and 4, the cylindrical portion 13 is provided with an open portion in which a part of the peripheral wall surrounding the power circuit housing portion 1a is opened, and the mounted portion 12 can be attached to the open portion. It is. Boss portions 13d and 13d are formed inside both ends of the open portion shown in FIGS. Screw holes 131 and convex portions 132 are provided on the upper surfaces of the boss portions 13d and 13d. The mounted portion 12 fits the convex portion 132 into a through-hole 12 of a fixing plate portion 12d of the mounted portion 12 described later, and fixes the screw hole 131 and the other through-hole 121 with a screw to dissipate the heat radiating portion main body 11. Attached to. A gap is provided between the left and right ends 12 h and 12 h of the mounted portion 12 and the inner wall of the cylindrical portion 13 for interposing an air layer having a heat insulating action. Thereby, the mounted part 12 and the heat radiating part main body 11 are configured such that heat is not easily transmitted to each other. Furthermore, a heat insulating material to be described later can be provided in the gap.

また図３から図５に示すように筒部１３には、放熱部本体１１の表面積を広げるための板状の複数のフィン１３ｃ，１３ｃ，…が設けてある。フィン１３ｃ，１３ｃ，…は、放熱部本体１１に取付ける被装着部１２と対向する面である側面１３ｅの外面及び後述する底板部１６に垂直な方向に連設して適長間隔に平行をなして複数設けられる。フィン１３ｃ，１３ｃ，…が放熱部本体１１の表面積を広げることで広範囲で外部の空気と接触して、放熱部本体１１に伝わる熱を放熱する。なお、フィン１３ｃ，１３ｃ，…の形状は板状に限らず、細い棒状のピンフィンであってもよい。前記ピンフィンは、側面１３ｅの外側で、底板部１６の面上に垂直に複数立設する。ピンフィンの如く細い棒状の形状とすることで、フィンの周辺の空気の流れの向きに依らずに対流による放熱が可能となるので、放熱効率が良好になる。   As shown in FIGS. 3 to 5, the cylindrical portion 13 is provided with a plurality of plate-like fins 13 c, 13 c,... For increasing the surface area of the heat radiating portion main body 11. The fins 13c, 13c,... Are arranged in parallel to the outer surface of the side surface 13e, which is a surface facing the mounted portion 12 attached to the heat radiating portion main body 11, and in a direction perpendicular to the bottom plate portion 16, which will be described later. Are provided. The fins 13c, 13c,... Spread the surface area of the heat dissipating part main body 11 to come into contact with outside air over a wide range and dissipate heat transmitted to the heat dissipating part main body 11. In addition, the shape of fin 13c, 13c, ... is not restricted to plate shape, A thin rod-shaped pin fin may be sufficient. A plurality of the pin fins are erected vertically on the surface of the bottom plate portion 16 outside the side surface 13e. By adopting a thin rod-like shape like a pin fin, heat can be radiated by convection regardless of the direction of the air flow around the fin, so that the heat radiation efficiency is improved.

図中の１４は、フランジ部１４である。フランジ部１４は、図５、図６に示すように筒部１３の一端１３ａの周縁に沿って幅が拡径して連設され、光源収容部１ｂの開口部と同径の開口を中央に有する環状板である。筒部１３の一端１３ａに連設される一面１４ａは、フランジ部１４の内側が外側より厚くなるような傾斜面に形成されている。また、一面１４ａの他面１４ｂが筒部１３の側面に対して略垂直で略平面状に形成してある。他面１４ｂの外周縁には、他面１４ｂに直交し、筒部１３に平行をなして全周に亘って突設してなる扁平な円筒状のリブ等の被覆部１４ｃが設けてある。該被覆部１４ｃは、照明装置１００の設置部に開口された取付穴にバリ等の凹凸があった場合に、照明装置本体１１と前記設置部との間に生じる隙間を被覆すべく設けてある。また、他面１４ｂの内周縁には、突設部１４ｄが設けてある。突設部１４ｄは、被覆部１４ｃと同心をなして、他面１４ｂに直交し、筒部１３に平行をなして全周に亘って突設してなる扁平な環状板である。被覆部１４ｃと突設部１４ｄとの間には、例えば、ラバー等の弾性を有する合成樹脂製部材であるパッキン（図示せず）が嵌入される。これにより、天井等の照明装置１００の設置部とフランジ部１４とが密接した状態にて照明装置１００が前記取付穴に取付けられる。   Reference numeral 14 in the figure denotes a flange portion 14. As shown in FIGS. 5 and 6, the flange portion 14 is continuously provided with a diameter increasing along the peripheral edge of the one end 13 a of the tube portion 13, and an opening having the same diameter as the opening portion of the light source housing portion 1 b is provided at the center. It is an annular plate having. One surface 14a connected to one end 13a of the cylindrical portion 13 is formed in an inclined surface such that the inside of the flange portion 14 is thicker than the outside. Further, the other surface 14 b of the one surface 14 a is formed substantially perpendicular to the side surface of the cylindrical portion 13 and substantially planar. The outer peripheral edge of the other surface 14b is provided with a covering portion 14c such as a flat cylindrical rib formed perpendicularly to the other surface 14b and projecting over the entire circumference in parallel with the cylindrical portion 13. The covering portion 14c is provided to cover a gap generated between the lighting device body 11 and the installation portion when the mounting hole opened in the installation portion of the lighting device 100 has irregularities such as burrs. . A projecting portion 14d is provided on the inner peripheral edge of the other surface 14b. The projecting portion 14 d is a flat annular plate that is concentric with the covering portion 14 c, orthogonal to the other surface 14 b, parallel to the cylindrical portion 13, and projected over the entire circumference. Between the covering portion 14c and the protruding portion 14d, for example, a packing (not shown) that is a synthetic resin member having elasticity such as rubber is fitted. Thereby, the illuminating device 100 is attached to the said mounting hole in the state which the installation part of the illuminating device 100, such as a ceiling, and the flange part 14 contact | adhered.

図７に示すように、バネ１５はステンレス等の金属製であり、細長い矩形状板を屈曲させてＶ字状に形成してある。バネ１５の一端には、矩形板状の取付け部１５ａが設けてあり、該取付け部１５ａには、ねじ穴（図示せず）が形成してある。取付部１５ａには、小さい曲率半径にて略２４０°に亘って湾曲してなる屈曲部１５ｂが連設してある。取付け部１５ａと反対側で屈曲部１５ｂから連設され、取付け部１５ａ側に凸に湾曲する第1の凸部１５ｃが設けられる。また第1の凸部１５ｃには、第１の凸部１５ｃと逆向きに湾曲する第２の凸部１５ｄが連設される。さらに第2の凸部１５ｄには第２の凸部１５ｄと逆向きに湾曲する第３の凸部１５ｅが連設される。第３の凸部１５ｅには矩形板状の腕部１５ｆが連設され、腕部１５ｆには取り付け部１５ａと逆向きに折れ曲がる抜止部１５ｇが連設される。なお、抜止部１５ｇは、第１の凸部１５ｃまたは第３の凸部１５ｅが天井に当接しない場合に、照明装置１００の落下を防止するために設けられる。   As shown in FIG. 7, the spring 15 is made of metal such as stainless steel, and is formed in a V shape by bending an elongated rectangular plate. One end of the spring 15 is provided with a rectangular plate-like attachment portion 15a, and a screw hole (not shown) is formed in the attachment portion 15a. The attachment portion 15a is provided with a bent portion 15b that is curved over a substantially 240 ° angle with a small radius of curvature. A first convex portion 15c that is provided continuously from the bent portion 15b on the side opposite to the mounting portion 15a and is convexly curved on the mounting portion 15a side is provided. Further, a second convex portion 15d that curves in the opposite direction to the first convex portion 15c is connected to the first convex portion 15c. Further, a third convex portion 15e that curves in the opposite direction to the second convex portion 15d is connected to the second convex portion 15d. A rectangular plate-shaped arm portion 15f is connected to the third convex portion 15e, and a retaining portion 15g that is bent in the opposite direction to the attachment portion 15a is connected to the arm portion 15f. The retaining portion 15g is provided to prevent the lighting device 100 from falling when the first convex portion 15c or the third convex portion 15e does not contact the ceiling.

第１の凸部１５ｃは、第３の凸部１５ｅよりも曲率半径を小さくしてある。第１の凸部１５ｃと第３の凸部１５ｅの曲率半径は、照明装置１００が天井に取付けられた際に、第１の凸部１５ｃと第３の凸部１５ｅのどちらか一方が天井に上から当接するように、天井の板厚に応じて決定される。   The first convex portion 15c has a smaller radius of curvature than the third convex portion 15e. The curvature radii of the first convex portion 15c and the third convex portion 15e are such that when the lighting device 100 is attached to the ceiling, either the first convex portion 15c or the third convex portion 15e is on the ceiling. It is determined according to the thickness of the ceiling so as to contact from above.

バネ１５は図８、図９に示すように、筒部１３の周壁に略等間隔に取付けられる。バネ１５の取付け部１５ａに設けられたねじ穴と筒部１３に設けられたねじ穴１３ｆ，１３ｆ，…とを合わせて、取付け部１５ａが筒部１３に密着して屈曲部１５ｂが下向きに凸になるようにねじで固定して取り付ける。なお、ねじを用いて固定せずに、タッピングビスを用いて固定しても良い。   As shown in FIGS. 8 and 9, the springs 15 are attached to the peripheral wall of the cylindrical portion 13 at substantially equal intervals. The screw hole provided in the attachment part 15a of the spring 15 and the screw holes 13f, 13f,... Provided in the cylinder part 13 are combined, the attachment part 15a closely contacts the cylinder part 13, and the bent part 15b protrudes downward. Secure with screws so that In addition, you may fix using a tapping screw, without fixing using a screw.

放熱部本体１１に設けられた底板部１６には、図１及び図３に示すように筒部１３の一端１３ａ側の一面１６ａに、光源モジュール３が伝熱シート２を介して取付けてある。さらに図５及び図６に示すように一面１６ａの他面１６ｂにはリブ１６ｃが設けてある。リブ１６ｃは、後述する被装着部１２の下端に設けられた係合縁１２ｇと係合して被装着部１２を放熱部本体１１に対して位置決めする。リブ１６ｃの形状は、他面１６ｂ上で筒部１３の周壁の開放部の内側の端から端を結ぶ直線上に形成される凸部であり、その高さまで放熱部１への浸水を防ぐことができる。   As shown in FIGS. 1 and 3, the light source module 3 is attached to the bottom plate part 16 provided in the heat radiating part main body 11 on the one surface 16 a side of the cylindrical part 13 via the heat transfer sheet 2. Further, as shown in FIGS. 5 and 6, a rib 16c is provided on the other surface 16b of the one surface 16a. The rib 16c engages with an engagement edge 12g provided at the lower end of the mounted portion 12 described later to position the mounted portion 12 with respect to the heat radiating portion main body 11. The shape of the rib 16c is a convex part formed on the other surface 16b on a straight line connecting the ends from the inner side of the open part of the peripheral wall of the cylindrical part 13, and prevents water from entering the heat radiating part 1 up to its height. Can do.

また、図１０に示すように底板部１６の一面１６ａの周縁には、矩形の凸部１６ｄ，１６ｄ，…が設けてある。凸部１６ｄ，１６ｄ，…は後述する反射板４の凹部４２ａ，４２ａ，…と嵌合して反射板４を底板部１６に対して位置決めする。なお、凸部１６ｄ，１６ｄ，…は、バネ１５を取り付けるねじの先端が貫通して露出することを防ぐ役割も兼ねている。さらに図６に示すように底板部１６には貫通孔１６ｅが設けられている。貫通孔１６ｅは、底板部１６上の筒部１３の周壁より内側において、電源回路６と光源モジュール３を接続する電源線（図示せず）を通すために設けられる。   Further, as shown in FIG. 10, rectangular convex portions 16 d, 16 d,... Are provided on the periphery of the one surface 16 a of the bottom plate portion 16. The convex portions 16d, 16d,... Are fitted into concave portions 42a, 42a,... Of the reflective plate 4 described later to position the reflective plate 4 with respect to the bottom plate portion 16. The convex portions 16d, 16d,... Also serve to prevent the tip of the screw for attaching the spring 15 from being exposed through. Furthermore, as shown in FIG. 6, the bottom plate portion 16 is provided with a through hole 16e. The through hole 16 e is provided inside the peripheral wall of the cylinder portion 13 on the bottom plate portion 16 so as to pass a power supply line (not shown) connecting the power supply circuit 6 and the light source module 3.

また底板部１６の他面１６ｂには、支持板１７，１７が図２、図４及び図５に示すように設けられる。支持板１７，１７は、電源端子台８１を下から支えるために設けられる。支持板１７，１７は、他面１６ｂとリブ１６ｃに垂直な方向に他面１６ｂから一体的に設けられる矩形板である。支持板１７，１７は、リブ１６ｃの外側に二箇所設けられ、後述する端子台８を装着した被装着部１２を放熱部本体１１に取り付けた際に、調光端子台８２が支持板１７，１７の間に位置するように設けられる。   Support plates 17 and 17 are provided on the other surface 16b of the bottom plate portion 16 as shown in FIGS. The support plates 17 are provided to support the power terminal block 81 from below. The support plates 17 and 17 are rectangular plates provided integrally from the other surface 16b in a direction perpendicular to the other surface 16b and the rib 16c. The support plates 17 and 17 are provided at two locations on the outside of the rib 16c. When the mounted portion 12 to which the terminal block 8 to be described later is mounted is attached to the heat radiating portion main body 11, the dimming terminal block 82 is attached to the support plate 17, 17 so as to be located between the two.

図１に示す伝熱シート２は、後述する光源モジュール３の光源基板３１と略同形状の薄板であり、電気絶縁性を有する熱良導体である。例えば、フィラーとして金属酸化物を適量含むシリコーン系樹脂製である。伝熱シート２は、後述する光源モジュール３の光源基板３１のＬＥＤ３２，３２…の実装面３１ａの他面３２ｂ及び底板部１６の一面１６ａに密着して取付けられる。伝熱シート２により、底板部１６と光源モジュール３が電気絶縁されながら、光源モジュール３の略全面から電熱シート２を介して底板部１６へ熱の伝導が良好になされる。   A heat transfer sheet 2 shown in FIG. 1 is a thin plate having substantially the same shape as a light source substrate 31 of a light source module 3 to be described later, and is a good heat conductor having electrical insulation. For example, it is made of a silicone resin containing an appropriate amount of a metal oxide as a filler. The heat transfer sheet 2 is attached in close contact with the other surface 32b of the mounting surface 31a of the LEDs 32, 32... Of the light source substrate 31 of the light source module 3 to be described later and the one surface 16a of the bottom plate portion 16. While the bottom plate portion 16 and the light source module 3 are electrically insulated by the heat transfer sheet 2, heat conduction from the substantially entire surface of the light source module 3 to the bottom plate portion 16 through the electrothermal sheet 2 is favorably performed.

光源モジュール３は、図１１及び図１２に示すように光源基板３１と該光源基板３１に実装された複数のＬＥＤ３２，３２，…とを備えてなる。なお、本実施の形態においては、ＬＥＤの数は２１個であり、図１０に示すように光源基板３１の中央に設けたＬＥＤ３２を中心に、８個のＬＥＤ３２，３２…が適長間隔に設けられ、その周りに１２個のＬＥＤ３２，３２…が適長間隔に設けられる。ＬＥＤ３２，３２…は、例えば、ＬＥＤ素子と、該ＬＥＤ素子を封止する封止樹脂と、入力端子及び出力端子とを備えてなる表面実装型のＬＥＤである。   As shown in FIGS. 11 and 12, the light source module 3 includes a light source substrate 31 and a plurality of LEDs 32, 32,... Mounted on the light source substrate 31. In the present embodiment, the number of LEDs is 21, and as shown in FIG. 10, eight LEDs 32, 32... Are provided at appropriate intervals with the LED 32 provided at the center of the light source substrate 31 as the center. 12 LEDs 32, 32... Are provided around the LED 12 at appropriate intervals. The LEDs 32, 32,... Are, for example, surface-mounted LEDs each including an LED element, a sealing resin that seals the LED element, and an input terminal and an output terminal.

また底板部１６の一面１６ａには、光源モジュール３を覆う反射板４が設けられる。反射板４は、図１２に示すように反射面を有する反射円板４１と、反射円板４１の周縁に連設され底板部１６に固定される固定枠４２からなる。固定枠４２の外周には、前述した矩形の凹部４２ａ，４２ａ，…を備える。凹部４２ａ，４２ａ，…は、底板部１６の一面１６ａに設けられた凸部１６ｄ，１６ｄ，…と嵌合して一面１６ａに取付けることで、反射板４を底板部１６に対して位置決めする。   A reflective plate 4 that covers the light source module 3 is provided on one surface 16 a of the bottom plate portion 16. As shown in FIG. 12, the reflecting plate 4 includes a reflecting disc 41 having a reflecting surface, and a fixed frame 42 that is connected to the periphery of the reflecting disc 41 and is fixed to the bottom plate portion 16. On the outer periphery of the fixed frame 42, the rectangular recesses 42a, 42a,. The concave portions 42a, 42a,... Are fitted to the convex portions 16d, 16d,... Provided on the one surface 16a of the bottom plate portion 16 and attached to the one surface 16a, thereby positioning the reflecting plate 4 with respect to the bottom plate portion 16.

図１１及び図１２に示すように、反射板４の反射円板４１は、底板部１６に取付けた際に光源であるＬＥＤ３２，３２，…の各位置に対応した箇所に設けられる貫通孔と、その周部に照射方向に広がる傾斜が施された凹部４１ａ，４１ａ，…を有する。ＬＥＤ３２，３２，…の各部から照射された光は、前記貫通孔を通過して、その周部の凹部４１ａ，４１ａ，…に反射して拡散される。   As shown in FIGS. 11 and 12, the reflection disk 41 of the reflection plate 4 has through holes provided at locations corresponding to the positions of the LEDs 32, 32,... That are light sources when attached to the bottom plate portion 16. It has the recessed part 41a, 41a, ... in which the inclination which spreads in the irradiation direction was given to the surrounding part. The light emitted from each part of the LEDs 32, 32,... Passes through the through hole, and is reflected and diffused to the concave parts 41a, 41a,.

反射円板４１の周縁には、ねじ穴４１ｂ，４１ｂ…が図３に示すように設けられる。反射板４は、底板部１６に取り付けた状態で、底板部１６の一面１６ａの周縁に設けられたねじ穴１６ｆ，１６ｆ，…と、ねじ穴４１ｂ，４１ｂ…を整合させてねじ４１ｃ，４１ｃ，…にて固定される。なお、反射板４は電気絶縁性の材料製であり、例えば光拡散材を分散させたポリカーボネート樹脂製、アルミナ焼結体製等である。   Screw holes 41b, 41b... Are provided on the periphery of the reflective disc 41 as shown in FIG. When the reflector 4 is attached to the bottom plate portion 16, the screw holes 16f, 16f,... Provided on the peripheral edge of the one surface 16a of the bottom plate portion 16 and the screw holes 41b, 41b,. It is fixed at…. The reflector 4 is made of an electrically insulating material, such as a polycarbonate resin in which a light diffusing material is dispersed, an alumina sintered body, or the like.

図１２の透光板５は、円板の形状を有しており、反射板４から反射して拡散される光を透過する。透光板５は、板部５１と、板部５１の周縁に連設される枠部５２とからなる。また、透光板５は枠部５２の周縁に複数設けられた係合爪５ａ，５ａ，…を備えている。透光板５は、反射板４を透光板５の枠部５２の内側に嵌入して係合爪５ａ，５ａ，…を反射板４の係合溝４２ｂ，４２ｂ，…に係合させて固定し、取付ける。透光板５は、係合爪５ａ，５ａ，…が係合溝４２ｂ，４２ｂ，…と直接係合することで、透光板５を外から押さえて固定するための化粧枠等がなくても反射板４に固定できるため、部品点数を削減することができる。なお、透光板５は、例えば、透明なポリカーボネート樹脂製、アクリル樹脂製、ガラス製等である。   The translucent plate 5 in FIG. 12 has a disc shape, and transmits the light reflected and diffused from the reflecting plate 4. The translucent plate 5 includes a plate portion 51 and a frame portion 52 provided continuously to the periphery of the plate portion 51. The translucent plate 5 includes a plurality of engaging claws 5 a, 5 a,... Provided on the periphery of the frame portion 52. The translucent plate 5 has the reflective plate 4 fitted inside the frame portion 52 of the translucent plate 5 and the engaging claws 5a, 5a,... Are engaged with the engaging grooves 42b, 42b,. Secure and install. The translucent plate 5 does not have a decorative frame or the like for pressing and fixing the translucent plate 5 from the outside by engaging the engaging claws 5a, 5a,... Directly with the engaging grooves 42b, 42b,. Since it can also be fixed to the reflector 4, the number of parts can be reduced. The translucent plate 5 is made of, for example, a transparent polycarbonate resin, an acrylic resin, or glass.

電源回路６は、図４及び図１３に示すように矩形状をなす電源基板６１に複数の電気部品６２，６２，…を実装してなる。電気部品６２，６２，…には、トランス、抵抗、ＩＣ、コンデンサ等の発熱部品を含む。電源基板６１にはスペーサ６１ｃを取付けるための取り付け穴６１ｄと、電源基板６１を接地して被装着部１２と接続するためのねじ６１ｆを取り付けるねじ穴６１ｅが設けてある。前記スペーサ６１ｃは円柱状をなし、電気的に絶縁距離を保つための間隔が空いた２箇所の溝で電源基板６１と被装着部１２とを支持する樹脂製の所謂ロッキングカードスペーサである。電源回路６は、まず前記取り付け穴６１ｄを後述する電源装着面１２ａに設けられた貫通孔１２１へ絶縁シート７を介して整合して、スペーサ６１ｃで被装着部１２と接続する。次にねじ穴６１ｅと他方の貫通孔１２１との間に筒状のスリーブ６１ｇを設け、該スリーブ６１ｇの穴を介してねじ６１ｆで電源回路６と被装着部１２を固定する。スリーブ６１ｇの穴の径は、ねじ穴６１ｅと貫通孔１２１の径よりも大きいので確実に電源回路６と被装着部１２との間に電気絶縁距離を設けることができる。   The power supply circuit 6 is formed by mounting a plurality of electrical components 62, 62,... On a power supply board 61 having a rectangular shape as shown in FIGS. The electrical components 62, 62, ... include heat generating components such as a transformer, a resistor, an IC, and a capacitor. The power supply board 61 is provided with an attachment hole 61d for attaching the spacer 61c and a screw hole 61e for attaching a screw 61f for grounding the power supply board 61 and connecting it to the mounted portion 12. The spacer 61c is a so-called locking card spacer made of resin that has a cylindrical shape and supports the power supply substrate 61 and the mounted portion 12 by two grooves that are spaced apart from each other to maintain an electrically insulating distance. First, the power supply circuit 6 aligns the mounting hole 61d with a through-hole 121 provided in a power supply mounting surface 12a, which will be described later, via the insulating sheet 7, and connects the mounting hole 61d to the mounted portion 12 with a spacer 61c. Next, a cylindrical sleeve 61g is provided between the screw hole 61e and the other through-hole 121, and the power supply circuit 6 and the mounted portion 12 are fixed by the screw 61f through the hole of the sleeve 61g. Since the diameter of the hole of the sleeve 61g is larger than the diameter of the screw hole 61e and the through hole 121, an electrical insulation distance can be reliably provided between the power supply circuit 6 and the mounted portion 12.

図１、図３及び図４に示す絶縁シート７は、電気絶縁距離を保っている電源回路６と被装着部１２が万一近づく際に短絡を防ぐために設けられる。絶縁シート７は、例えば厚さ０．４ｍｍで被装着部１２の電源装着面１２ａと略同程度の大きさの矩形の板状のシートである。材料には、例えば電気絶縁性で柔軟性のある、比較的熱伝導の良好な難燃性のポリエステルフィルムやポリイミドフィルム等が用いられる。絶縁シート７は、被装着部１２の電源装着面１２ａの略全面に接続して取付けられる。電気部品６２，６２，…のうち、特に発熱量の大きい前記発熱部品には、絶縁シート７と該発熱部品との間に熱伝導部材（図示せず）が設けられる。熱伝導部材には、比較的熱伝導の良好なシリコーンゴム等が用いられる。熱伝導部材は、一面にて前記発熱部品または電源基板６１の発熱部品の実装面の裏を覆って密着し、かつ他面で絶縁シート７または被装着部１２に密着する。これにより発熱部品と被装着部１２を熱的に接続し、発熱部品から被装着部１２への熱伝導を良好にする。なお、絶縁シート７の寸法及び材料は上記に限定されたものではなく、確実に絶縁可能な厚さと大きさがあればよく、材料に変性ポリエチレン製のシート等を用いてもよい。   The insulating sheet 7 shown in FIGS. 1, 3, and 4 is provided in order to prevent a short circuit when the power supply circuit 6 maintaining the electrical insulation distance and the mounted portion 12 should approach each other. The insulating sheet 7 is, for example, a rectangular plate-like sheet having a thickness of 0.4 mm and approximately the same size as the power supply mounting surface 12 a of the mounted portion 12. As the material, for example, an insulative and flexible flame retardant polyester film or polyimide film having relatively good heat conduction is used. The insulating sheet 7 is attached so as to be connected to substantially the entire surface of the power supply mounting surface 12 a of the mounted portion 12. Among the electrical components 62, 62,..., The heat generating component that generates a large amount of heat is provided with a heat conducting member (not shown) between the insulating sheet 7 and the heat generating component. For the heat conducting member, silicone rubber or the like having relatively good heat conduction is used. The heat conducting member is in close contact with the heat generating component or the mounting surface of the heat generating component of the power supply substrate 61 on one surface, and is in close contact with the insulating sheet 7 or the mounted portion 12 on the other surface. As a result, the heat generating component and the mounted portion 12 are thermally connected to improve heat conduction from the heat generating component to the mounted portion 12. In addition, the dimension and material of the insulating sheet 7 are not limited to the above, and it is sufficient that the insulating sheet 7 has a thickness and size that can surely be insulated, and a sheet made of modified polyethylene may be used as the material.

前記熱伝導部材を介して、前記発熱部品を被装着部１２に熱的に接続する際に、より発熱部品からの熱を被装着部１２へ伝導する効率を向上させるために、電気部品６２，６２，…の配置を工夫することが望ましい。具体的には、例えば電気部品６２，６２，…のうち発熱部品を電源基板６１の被装着部１２に接続する側の一面６１ａ側に実装し、それ以外の部品を他面６１ｂ側へ実装させる方法が望ましい。発熱部品を被装着部１２側の一面６１ａに実装することで、発熱部品を覆う熱伝導部材により発熱部品からの熱が周部に逃げずに被装着部１２へ伝わりやすくなる。また、被装着部１２に近い一面６１ａに実装することで、熱伝導の距離も縮まり、熱伝導効率が向上する。なお、電気部品６２，６２，…の電源基板６１への実装方法は、上記に限定されたものではない。例えば一部の発熱部品を一面６１ａに実装する方法でもよいし、全ての電源部品６２，６２，…を一面６１ａまたは他面６１ｂに実装する方法等であってもよい。   In order to improve the efficiency of conducting heat from the heat generating component to the mounted portion 12 when the heat generating component is thermally connected to the mounted portion 12 via the heat conducting member, the electrical components 62, It is desirable to devise the arrangement of 62,. Specifically, for example, among the electric components 62, 62,..., The heat generating component is mounted on the one surface 61a side of the power supply substrate 61 connected to the mounted portion 12, and the other components are mounted on the other surface 61b side. The method is desirable. By mounting the heat generating component on the one surface 61a on the mounted portion 12 side, the heat conduction member covering the heat generating component makes it easy for heat from the heat generating component to be transferred to the mounted portion 12 without escaping to the peripheral portion. Moreover, by mounting on the one surface 61a close to the mounted portion 12, the heat conduction distance is shortened and the heat conduction efficiency is improved. The mounting method of the electrical components 62, 62,... On the power supply board 61 is not limited to the above. For example, a method of mounting a part of the heat generating components on one surface 61a, a method of mounting all the power supply components 62, 62,... On the one surface 61a or the other surface 61b may be used.

端子台８は、図１３に示すように電源端子台８１と調光端子台８２からなる。電源端子台８１は、扁平な略直方体の外形状を有している。図１４のように電源端子台８１の一面には、光源モジュール３へ電力を供給するための電力線である電源ケーブル（図示せず）が接続される接続端子８１ａ，８１ａ…が設けてある。図１３に示すように電源端子台８１の接続端子８１ａ，８１ａ…が設けてある面の反対側の面には、電源線（図示せず）により電源回路６に接続される電源ハーネス８１ｂが設けてある。また、電源端子台８１のこれら２面と直角をなす２面には、該２面を貫通するねじ穴８１ｃが設けてある。前記２面の一方の面には、円柱状の位置決め用の突起８１ｄが設けてある。   The terminal block 8 includes a power supply terminal block 81 and a dimming terminal block 82 as shown in FIG. The power supply terminal block 81 has a flat, substantially rectangular parallelepiped outer shape. As shown in FIG. 14, connection terminals 81 a, 81 a... Are connected to one surface of the power terminal block 81 to which a power cable (not shown) that is a power line for supplying power to the light source module 3 is connected. As shown in FIG. 13, a power supply harness 81b connected to the power supply circuit 6 by a power supply line (not shown) is provided on the surface opposite to the surface on which the connection terminals 81a, 81a. It is. Also, screw holes 81c penetrating through the two surfaces are provided on two surfaces of the power terminal block 81 that are perpendicular to these two surfaces. A cylindrical positioning projection 81d is provided on one of the two surfaces.

調光端子台８２は、略直方体の外形状を有している。調光端子台８２の一面には、調光用の信号線が接続される接続端子８２ａ，８２ａ…が設けてある。調光端子台８２の接続端子８２ａ，８２ａ…が設けてある面の反対側の面には、２つの円柱状の位置決め用の突起８２ｂ，８２ｂが併設してあり、該突起８２ｂ，８２ｂの間には、図１４に示すねじ穴８２ｃが設けてある。調光端子台８２の、上記二面と直角を成す面には、電源回路６に接続される調光線（図示せず）が設けてある。   The dimming terminal block 82 has a substantially rectangular parallelepiped outer shape. On one surface of the dimming terminal block 82, connection terminals 82a, 82a... To which dimming signal lines are connected are provided. Two columnar positioning projections 82b and 82b are provided on the surface opposite to the surface on which the connection terminals 82a, 82a... Of the dimming terminal block 82 are provided, and between the projections 82b and 82b. Is provided with a screw hole 82c shown in FIG. Dimming light (not shown) connected to the power supply circuit 6 is provided on a surface of the dimming terminal block 82 that is perpendicular to the two surfaces.

図５に示すように被装着部１２は、熱伝導の良好なアルミニウム等の金属製の矩形板である。まず、前述のように被装着部１２の電源回路６を装着する側の電源装着面１２ａには、電源回路６の取り付け穴６１ｄ及びねじ穴６１ｅと接続するための貫通孔１２１，１２１，…が設けられる。   As shown in FIG. 5, the mounted portion 12 is a rectangular plate made of metal such as aluminum having good heat conduction. First, as described above, the power supply mounting surface 12a of the mounted portion 12 on the side where the power supply circuit 6 is mounted has through holes 121, 121,... For connecting to the mounting holes 61d and the screw holes 61e of the power supply circuit 6. Provided.

一方、端子台装着面１２ｂには端子台装着面１２ｂに垂直な向きに設けられた設置板１２ｃを有する。設置板１２ｃは、前述した細長い矩形板状の固定板部１２ｄと、固定板部１２ｄに連設され電源端子台８１と略同じ幅の矩形板である端子台設置部１２ｅとからなる。端子台設置部１２ｅに電源端子台８１を設置し、固定板部１２ｄで被装着部１２を放熱部本体１１に固定する。   On the other hand, the terminal block mounting surface 12b has an installation plate 12c provided in a direction perpendicular to the terminal block mounting surface 12b. The installation plate 12c includes the above-described elongated rectangular plate-shaped fixed plate portion 12d and the terminal block installation portion 12e that is a rectangular plate that is connected to the fixed plate portion 12d and has substantially the same width as the power terminal block 81. A power terminal block 81 is installed in the terminal block installation section 12e, and the mounted section 12 is fixed to the heat radiating section main body 11 with a fixing plate section 12d.

図５及び図１３に示すように固定板部１２ｄの両端には、前述したボス部１３ｄ，１３ｄに設けられたねじ穴１３１及び凸部１３２に固定するための貫通孔１２２，１２２が設けられている。また、固定板部１２ｄの中央には、調光端子台８２と電源回路６を繋ぐ前期調光線を通す貫通孔１２３が設けられている。端子台設置部１２ｅには、電源端子台８１の底面に設けられた突起８１ｄと嵌合する貫通孔１２４と、電源端子台８１のねじ穴８１ｃとねじで接続するねじ穴１２５が設けられている。電源端子台８１は突起８１ｄと前記貫通孔１２４とを嵌合させ電源端子台８１を端子台設置部１２ｅに対し位置決めし、ねじ穴８１ｃと端子台設置部１２ｅに設けられたねじ穴１２５をねじ１２６で固定して取り付ける。ねじ穴８１ｃに取り付けるねじ１２６は、電源端子台８１を接地する役割も有する。   As shown in FIGS. 5 and 13, through holes 122 and 122 are provided at both ends of the fixing plate portion 12d to fix the screw holes 131 and the convex portions 132 provided in the boss portions 13d and 13d described above. Yes. In addition, a through-hole 123 is provided in the center of the fixed plate portion 12d. The terminal block installation portion 12e is provided with a through hole 124 that fits with a protrusion 81d provided on the bottom surface of the power terminal block 81, and a screw hole 125 that is connected to the screw hole 81c of the power terminal block 81 with a screw. . The power terminal block 81 is engaged with the projection 81d and the through hole 124 to position the power terminal block 81 with respect to the terminal block installation portion 12e, and the screw hole 81c and the screw hole 125 provided in the terminal block installation portion 12e are screwed. Attach with fixing at 126. The screw 126 attached to the screw hole 81c also serves to ground the power terminal block 81.

調光端子台８２は、設置板１２ｃの下部に調光端子台８２が位置するように取り付ける。まず端子台装着面１２ｂに２箇所設けられた貫通孔１２７，１２７と調光端子台８２に設けられた突起８２ｂ，８２ｂとを嵌合させて調光端子台８２を位置決めし、次に貫通孔１２７，１２７の間に設けられたねじ穴１２ｆと端子台８２のねじ穴８２ｃをねじ１２８で固定し取付ける。   The dimming terminal block 82 is attached so that the dimming terminal block 82 is positioned below the installation plate 12c. First, the dimming terminal block 82 is positioned by fitting the through holes 127, 127 provided in two places on the terminal block mounting surface 12b and the projections 82b, 82b provided in the dimming terminal block 82, and then the through holes The screw hole 12f provided between 127 and 127 and the screw hole 82c of the terminal block 82 are fixed with screws 128 and attached.

また図１４に示すように、被装着部１２を放熱部本体１１に取り付けた際の被装着部１２の垂直（縦）方向の幅は、電源端子台８１及び調光端子台８２と電源回路６とを繋ぐ接続線（前記電源線及び前記調光線）が被装着部１２の上端１２ｉを跨いで筒部１３の内部に通せるための隙間が後述する天板９との間で確保できる寸法である。前記隙間により、天板９と被装着部１２とを熱的に分離することも可能となる。   Further, as shown in FIG. 14, the width of the mounted portion 12 in the vertical (vertical) direction when the mounted portion 12 is attached to the heat radiating portion main body 11 is the power terminal block 81, the dimming terminal block 82, and the power circuit 6. With a dimension that can secure a gap with the top plate 9 to be described later so that a connecting line (the power supply line and the light adjusting beam) can be passed through the inside of the cylindrical portion 13 across the upper end 12i of the mounted portion 12. is there. It is also possible to thermally separate the top plate 9 and the mounted portion 12 by the gap.

被装着部１２の放熱部本体１１への取り付け方法を図５及び図１４に基づいて説明する。初めに、図１４のように電源回路６及び端子台８を被装着部１２に装着させる。そして被装着部１２を、筒部１３の周壁の開放部に筒部１３の周壁の一部をなすように取り付ける。まず、電源回路６が筒部１３の内部の前記電源回路収容部１ａに収容され、かつ電源端子台８１が筒部１３の他端１３ｂ側を向くように被装着部１２を図５の矢印Ｉの方向に挿入する。次に被装着部１２の底板部１６側の下端に設けられたコの字状の係合縁１２ｇをリブ１６ｃに係合して、被装着部１２を放熱部本体１１に対して位置決めする。最後に被装着部１２の固定板部１２ｄの両端の貫通穴１２２のうち片方をボス部１３ｄの凸部１３２に嵌合し、かつもう一方をねじ穴１３１と整合してねじで固定して取り付ける。   A method of attaching the mounted portion 12 to the heat radiating portion main body 11 will be described with reference to FIGS. First, as shown in FIG. 14, the power supply circuit 6 and the terminal block 8 are mounted on the mounted portion 12. And the to-be-attached part 12 is attached to the open part of the surrounding wall of the cylinder part 13 so that a part of surrounding wall of the cylinder part 13 may be made. First, the mounted portion 12 is moved to the arrow I in FIG. 5 so that the power circuit 6 is accommodated in the power circuit accommodating portion 1a inside the cylindrical portion 13 and the power terminal block 81 faces the other end 13b of the cylindrical portion 13. Insert in the direction of. Next, the U-shaped engagement edge 12 g provided at the lower end of the mounted portion 12 on the bottom plate portion 16 side is engaged with the rib 16 c to position the mounted portion 12 with respect to the heat radiating portion main body 11. Finally, one of the through holes 122 at both ends of the fixing plate portion 12d of the mounted portion 12 is fitted into the convex portion 132 of the boss portion 13d, and the other is aligned with the screw hole 131 and fixed with screws. .

上記の如く被装着部１２を筒部１３に取付けることで、被装着部１２と放熱部本体１１による電源回路収容部１ａが形成される。つまり電源回路６を放熱部１に収容させて被装着部１２を放熱部本体１１に設けることが可能となる。このように電源回路６の収容空間を有する筒部１３の周壁の一部をなすべく、被装着部１２を放熱部本体１１に取付け可能な構造にすることで、被装着部１２を電源回路６及び端子台８を装着させた状態で放熱部本体１１に着脱自在となる。換言すると、被装着部１２は、電源回路６及び端子台８を装着した状態で放熱部本体に取り付け及び取り外しが可能となる。   By attaching the mounted portion 12 to the cylindrical portion 13 as described above, the power supply circuit accommodating portion 1a including the mounted portion 12 and the heat radiating portion main body 11 is formed. That is, the power supply circuit 6 can be accommodated in the heat radiating portion 1 and the mounted portion 12 can be provided in the heat radiating portion main body 11. In this way, the mounted portion 12 is configured to be attachable to the heat radiating portion main body 11 so as to form a part of the peripheral wall of the cylindrical portion 13 having the accommodation space for the power supply circuit 6, so that the mounted portion 12 is connected to the power supply circuit 6. And in a state where the terminal block 8 is mounted, the heat dissipating part main body 11 can be attached and detached. In other words, the mounted portion 12 can be attached to and detached from the heat radiating portion main body with the power supply circuit 6 and the terminal block 8 mounted.

さらに、被装着部１２の左右の両端１２ｈ，１２ｈと筒部の内壁の間及び係合縁１２ｇとリブ１６ｃの間で隙間が存在することで空気層が介在する。空気はアルミニウム等の金属に比して大幅に熱伝導率が低いため、空気層による断熱作用が得られ、被装着部１２と放熱部本体１１は熱的に分離される。また、被装着部１２と放熱部本体１１が分離可能な構造とすることで、被装着部１２と放熱部本体１１が一体的に接着された状態に比して熱が互いに伝導しにくくなる作用が得られる。   Furthermore, an air layer is interposed by the presence of gaps between the left and right ends 12h, 12h of the mounted portion 12 and the inner wall of the cylindrical portion and between the engagement edge 12g and the rib 16c. Since air has a significantly lower thermal conductivity than metals such as aluminum, a heat insulating action is obtained by the air layer, and the mounted portion 12 and the heat radiating portion main body 11 are thermally separated. In addition, the structure in which the mounted portion 12 and the heat radiating portion main body 11 are separable makes it difficult for heat to conduct to each other compared to the state in which the mounted portion 12 and the heat radiating portion main body 11 are integrally bonded. Is obtained.

被装着部１２は、図４及び図１４に示すように筒部１３の周壁の一部をなすべく放熱部本体１１に設けられる。これにより、電源回路６からの熱を放熱する被装着部１２が外部の空気に接して設けられることになり、被装着部１２に伝導した熱が直接外気へ放熱されるため、電源回路６からの熱の放熱効率が良好になる。また、筒部１３の周壁の一部としての役割と、電源回路６及び端子台８の被装着部（設置部）としての役割を備えることで、部品点数を削減できると共に、照明装置１００全体の軽量化を図ることもできる。   As shown in FIGS. 4 and 14, the mounted portion 12 is provided in the heat radiating portion main body 11 so as to form a part of the peripheral wall of the cylindrical portion 13. As a result, the mounted portion 12 that dissipates heat from the power supply circuit 6 is provided in contact with the outside air, and the heat conducted to the mounted portion 12 is directly radiated to the outside air. The heat dissipation efficiency of heat becomes better. In addition, by providing a role as a part of the peripheral wall of the cylindrical portion 13 and a role as a mounted portion (installation portion) of the power supply circuit 6 and the terminal block 8, the number of parts can be reduced, and the entire lighting device 100 can be reduced. It is also possible to reduce the weight.

さらに、被装着部１２の左右の両端１２ｈ，１２ｈと筒部１３の内壁の間、係合縁１２ｇとリブ１６ｃの間及び固定板部１２ｄの両端とボス部１３ｄとの間に低熱伝導性の断熱材（図示せず）を介在させることが望ましい。断熱材としては、例えばエチレン−プロピレン−ジエンゴム（ＥＰＤＭ）製の発泡テープ等が用いられる。断熱材を被装着部１２と筒部１３の間に介在させることで、確実に非接触状態を保つことができる。即ち筒部１３と被装着部１２が熱的に分離され、より互いに熱が伝わりにくい状態となるので、放熱部本体１１と被装着部１２が熱的に独立して夫々ＬＥＤ３２，３２…からの熱と、電気部品６２，６２，…からの熱を放熱することが出来る。   Furthermore, low thermal conductivity between the left and right ends 12h, 12h of the mounted portion 12 and the inner wall of the cylindrical portion 13, between the engaging edge 12g and the rib 16c, and between both ends of the fixed plate portion 12d and the boss portion 13d. It is desirable to interpose a heat insulating material (not shown). As the heat insulating material, for example, foamed tape made of ethylene-propylene-diene rubber (EPDM) or the like is used. By interposing the heat insulating material between the mounted portion 12 and the cylindrical portion 13, a non-contact state can be reliably maintained. That is, since the tube portion 13 and the mounted portion 12 are thermally separated and heat is hardly transmitted to each other, the heat radiating portion main body 11 and the mounted portion 12 are thermally independent from the LEDs 32, 32. Heat and heat from the electrical components 62, 62,... Can be radiated.

このように筒部１３に電源回路６が収容された放熱部本体１１には、電源回路収容部１ａの開口部を塞ぐ天板９が取付けられる。天板９は、図１に示すように板部９ａと周壁９ｂからなり、周壁９ｂが筒部１３の他端１３ｂの周縁を覆うように筒部１３に取付けられる。天板９の板部９ａの周縁には、ねじ穴９ｃ，９ｃ…が設けてあり、該ねじ穴９ｃ，９ｃ，…と筒部１３の他端１３ｂの周縁に設けられたねじ穴１３ｇ，１３ｇ，…を、ねじ９ｄ，９ｄ，…で固定する。なお、前述したように、天板９と被装着部１２の上端１２ｉの間には図３に示すように端子台８からの電源回路６への接続線が通る隙間が設けられる。   Thus, the top plate 9 which closes the opening part of the power supply circuit accommodating part 1a is attached to the thermal radiation part main body 11 in which the power supply circuit 6 was accommodated in the cylinder part 13. FIG. As shown in FIG. 1, the top plate 9 includes a plate portion 9 a and a peripheral wall 9 b, and is attached to the cylindrical portion 13 so that the peripheral wall 9 b covers the periphery of the other end 13 b of the cylindrical portion 13. Screw holes 9c, 9c,... Are provided at the periphery of the plate portion 9a of the top plate 9, and screw holes 13g, 13g provided at the periphery of the screw holes 9c, 9c,. Are fixed with screws 9d, 9d,. As described above, a gap through which the connection line from the terminal block 8 to the power supply circuit 6 passes is provided between the top plate 9 and the upper end 12i of the mounted portion 12 as shown in FIG.

さらに電源端子台８１には、図１３に示すターミナルカバー８３が取付けられる。ターミナルカバー８３は、電源端子台８１を埃や衝撃などから保護し、万が一電源端子台８１の接続部が発熱した場合にも周囲への延焼を防止するために設置される。ターミナルカバー８３は、矩形の長板を折り曲げて一面の中央部が開放された四角筒であり、アルミニウム等の金属製である。ターミナルカバー８３は、前記四角筒の開放した面を下向きに電源端子台８１の上面及び側面と天板９の一部を覆うべく取り付ける。そして図３に示す上面８３ａに設けられたねじ穴８３ｂと天板９の板部９ａのターミナルカバー８３と重なる部分に設けられたねじ穴（図示せず）とをねじ８３ｃで固定する。   Further, a terminal cover 83 shown in FIG. The terminal cover 83 is installed to protect the power supply terminal block 81 from dust and impacts, and to prevent the spread of fire to the surroundings even if the connection portion of the power supply terminal block 81 generates heat. The terminal cover 83 is a rectangular tube in which a rectangular long plate is bent to open a central portion of one surface, and is made of metal such as aluminum. The terminal cover 83 is attached so as to cover the upper surface and side surfaces of the power terminal block 81 and a part of the top plate 9 with the open surface of the rectangular tube facing downward. And the screw hole 83b provided in the upper surface 83a shown in FIG. 3 and the screw hole (not shown) provided in the part which overlaps with the terminal cover 83 of the board part 9a of the top plate 9 are fixed with the screw 83c.

以上のように構成された照明装置１００は、フランジ部１４側を下向きにして、照明装置１００の設置の設置部である天井に設けられた取り付け穴にバネ１５を介して固定される。電源端子台８１には、照明装置１００を設置した際に前記電源ケーブルが接続端子８１ａ，８１ａ…に接続される。取り付けの際には、まず前記電源ケーブルを室内側へ引っ張り出して電源端子台８１の接続端子８１ａ，８１ａ…に接続する。その後、バネ１５を放熱部本体１１側へ押し付けた状態で前記取り付け穴に照明装置１００を電源端子８１側から入れ、バネ１５が取り付け穴に入った後バネ１５を放してフランジ部１４が取り付け穴周部の天井面に当接するまで押し込む。この結果バネ１５によって照明装置１００が天井の取り付け穴の内周に支えられフランジ部１４の他面１４ｂが天井に当接した状態で固定して取り付けることができる。   The lighting device 100 configured as described above is fixed via a spring 15 to a mounting hole provided in a ceiling, which is an installation portion of the lighting device 100, with the flange portion 14 side facing downward. When the lighting device 100 is installed on the power terminal block 81, the power cable is connected to the connection terminals 81a, 81a. When attaching, first, the power cable is pulled out indoors and connected to the connection terminals 81a, 81a. Thereafter, the lighting device 100 is inserted into the mounting hole from the power supply terminal 81 side in a state where the spring 15 is pressed against the heat radiating unit main body 11 side. After the spring 15 enters the mounting hole, the spring 15 is released and the flange portion 14 is mounted on the mounting hole. Push it in until it touches the ceiling surface of the periphery. As a result, the lighting device 100 is supported by the inner periphery of the mounting hole of the ceiling by the spring 15 and can be fixed and mounted in a state where the other surface 14b of the flange portion 14 is in contact with the ceiling.

上記のように被装着部１２が放熱部本体１１に着脱自在に設けられる構造とすることで、被装着部１２と放熱部本体１１との間に隙間が生まれる。または被装着部１２と放熱部本体１１との間に前記断熱材を介在させることが可能となる。これらの構成によって、電源回路６からの熱を放熱する被装着部１２と、光源であるＬＥＤ３２，３２，…からの熱を放熱する放熱部本体１１とを熱的に分離することができる。換言すると放熱部本体１１と被装着部１２を互いに熱が伝わりにくくすることができる。   A gap is created between the mounted portion 12 and the heat radiating portion main body 11 by adopting a structure in which the mounted portion 12 is detachably provided on the heat radiating portion main body 11 as described above. Or it becomes possible to interpose the said heat insulating material between the to-be-mounted part 12 and the thermal radiation part main body 11. FIG. With these configurations, it is possible to thermally separate the mounted portion 12 that radiates heat from the power supply circuit 6 and the radiating portion main body 11 that radiates heat from the LEDs 32, 32,. In other words, it is possible to make it difficult for the heat radiating unit main body 11 and the mounted portion 12 to transmit heat to each other.

仮に放熱部本体１１と被装着部１２が互いに熱が伝わり易い状態で設けられていると、例えば放熱部本体１１と被装着部１２が一体に成型されて設けられる場合、ＬＥＤ３２，３２，…の発熱量が電源回路６の発熱量よりも大きいと、ＬＥＤ３２，３２，…からの熱が放熱部本体１１から被装着部１２へ伝わる。その結果、被装着部１２の温度が上昇し、電源回路６との温度差が小さくなる、または電源回路６よりも被装着部１２の温度が高くなる。これにより、電源回路６から被装着部１２への時間あたりに伝導する熱量が低下し、または被装着部１２から電源回路６へ熱の伝導が起こるため、電源回路６からの熱は被装着部１２から効率的に放熱できなくなる。その結果、電源回路６の温度が上昇するため電源回路６が実装する電気部品６２，６２，…への熱的負荷を高め、劣化に繋がることになる。   If the heat dissipating part main body 11 and the attached part 12 are provided in a state in which heat is easily transmitted to each other, for example, when the heat dissipating part main body 11 and the attached part 12 are integrally molded, the LEDs 32, 32,. When the heat generation amount is larger than the heat generation amount of the power supply circuit 6, the heat from the LEDs 32, 32,. As a result, the temperature of the mounted part 12 rises and the temperature difference with the power supply circuit 6 becomes smaller, or the temperature of the mounted part 12 becomes higher than the power supply circuit 6. As a result, the amount of heat conducted from the power supply circuit 6 to the mounted portion 12 per unit time is reduced, or heat conduction from the mounted portion 12 to the power supply circuit 6 occurs. 12 can not efficiently dissipate heat. As a result, since the temperature of the power supply circuit 6 rises, the thermal load on the electrical components 62, 62,... Mounted by the power supply circuit 6 is increased, leading to deterioration.

しかしながら、本発明では放熱部本体１１と被装着部１２を熱的に分離しているから、ＬＥＤ３２，３２，…の熱が放熱部本体１１から被装着部１２へ伝わりにくくなり、ＬＥＤ３２，３２，…と電源回路６との温度差に関わりなく、夫々の熱を独立に外気中に放熱することができる。つまり、電源回路６が光源であるＬＥＤ３２，３２，…の熱を放熱する放熱部本体１１に収容されて、距離的に光源からの熱の影響を受けやすい設置条件にあったとしても、夫々独立に放熱部本体１１と被装着部１２から外部の空気に放熱することが可能となる。換言すると電源回路６からの熱を放熱する被装着部１２が、光源であるＬＥＤ３２，３２，…からの熱を放熱する放熱部本体１１に近接していたとしても、夫々独立に放熱することが可能となる。   However, in the present invention, since the heat dissipating part main body 11 and the mounted part 12 are thermally separated, the heat of the LEDs 32, 32, ... becomes difficult to be transmitted from the heat dissipating part main body 11 to the mounted part 12, and the LEDs 32, 32,. Regardless of the temperature difference between the power supply circuit 6 and the power supply circuit 6, each heat can be dissipated independently into the outside air. That is, even if the power supply circuit 6 is housed in the heat radiating unit main body 11 that radiates the heat of the LEDs 32, 32,. It is possible to radiate heat from the heat dissipating part main body 11 and the mounted part 12 to the outside air. In other words, even if the mounted portion 12 that radiates heat from the power supply circuit 6 is close to the heat radiating portion main body 11 that radiates heat from the LEDs 32, 32,. It becomes possible.

さらに前述したように被装着部１２は、電源回路６及び端子台８を装着した状態で電源回路６を放熱部本体１１に収容して筒部１３の周壁の一部をなすように着脱自在に取付けられる。これにより、電源回路６と端子台８は容易に被装着部１２ごと筒部１３から取り付外し及び取付けをすることができ、組立及び修理の作業性を良好にすることが可能となる。さらに、底板部１６にリブ１６ｃを設けることで、被装着部１２と筒部１３の間に隙間が生じる場合でも、リブ１６ｃが浸水防止壁となり、照明装置１００内部への浸水をリブ１６ｃの高さまで防止することが可能となる。   Further, as described above, the mounted portion 12 is detachable so that the power supply circuit 6 is accommodated in the heat radiating portion main body 11 in a state in which the power supply circuit 6 and the terminal block 8 are mounted so as to form a part of the peripheral wall of the cylindrical portion 13. Mounted. As a result, the power supply circuit 6 and the terminal block 8 can be easily detached and attached from the cylindrical portion 13 together with the mounted portion 12, and the workability of assembly and repair can be improved. Furthermore, by providing the rib 16c on the bottom plate portion 16, even when a gap is generated between the mounted portion 12 and the cylindrical portion 13, the rib 16c serves as a water-infiltration preventing wall, so that the water into the lighting device 100 can be immersed in the height of the rib 16c. This can be prevented.

また、前述のように電源回路６の電気部品６２，６２，…の発熱部品を被装着部１２と絶縁シート７及び前記熱伝導部材を介して熱的に接続することで、効率的に発熱部品から被装着部１２へ熱を伝導することができる。さらに被装着部１２が外気と接することで速やかに放熱でき、電源回路６の電気部品６２，６２，…の温度上昇を防ぎ劣化を防止することができる。   Also, as described above, the heat generating components of the electric components 62, 62,... Of the power supply circuit 6 are thermally connected to the mounted portion 12 through the insulating sheet 7 and the heat conducting member, thereby efficiently generating the heat generating components. Then, heat can be conducted to the mounted portion 12. Further, the mounted portion 12 can be quickly radiated by being in contact with the outside air, and the temperature rise of the electric components 62, 62,.

以上のように本実施の形態においては、被装着部１２と放熱部本体１１を熱的に分離すべく、被装着部１２が放熱部本体１１に着脱自在に取り付けられる構造としている。ただし、熱的に分離する方法は上記に限ったものではなく、例えば被装着部１２と放熱部本体１１との間で、低熱伝導性の断熱材や接着剤を用いて一体的に接続し、かつ夫々熱的に分離する方法であってもよい。   As described above, in the present embodiment, the mounted portion 12 is detachably attached to the radiating portion main body 11 so as to thermally separate the mounted portion 12 and the radiating portion main body 11. However, the method of thermally separating is not limited to the above, for example, between the mounted portion 12 and the heat radiating portion main body 11, and integrally connecting using a low thermal conductivity heat insulating material or adhesive, And each may be a method of thermal separation.

さらに本実施の形態においては、被装着部１２を放熱部本体１１に接続する方法として、固定板部１２ｄとボス部１３ｄ，１３ｄによって固定する方法を示したが、これに限ったものではない。例えば、被装着部１２の左右の両端１２ｈ，１２ｈが嵌合できる垂直方向の溝を本実施の形態におけるボス部１３ｄ，１３ｄの位置に設け、前記溝に両端１２ｈ，１２ｈが嵌合しながらスライドして筒部１３に挿入して被装着部１２を放熱部本体１１に取り付ける機構であってもよい。その際、被装着部１２と筒部１３との間に断熱材を設けてもよい。   Further, in the present embodiment, as a method of connecting the mounted portion 12 to the heat radiating portion main body 11, a method of fixing by the fixing plate portion 12d and the boss portions 13d, 13d has been shown, but the method is not limited to this. For example, a vertical groove in which the left and right ends 12h and 12h of the mounted portion 12 can be fitted is provided at the position of the boss portions 13d and 13d in the present embodiment, and the both ends 12h and 12h are slid while fitted into the groove. Then, it may be a mechanism that is inserted into the cylindrical portion 13 and attaches the mounted portion 12 to the heat radiating portion main body 11. At that time, a heat insulating material may be provided between the mounted portion 12 and the cylindrical portion 13.

また、本実施の形態において、端子台８を被装着部１２の面１２ｂに実装したが、端子台８の設置方法は、これに限らず、例えば本実施の形態におけるフィン１３ｃ，１３ｃ，…の位置にフィン１３ｃ，１３ｃ，…に置き換えて取り付ける構造であってもよい。   Moreover, in this Embodiment, although the terminal block 8 was mounted in the surface 12b of the to-be-attached part 12, the installation method of the terminal block 8 is not restricted to this, For example, fin 13c, 13c, ... in this Embodiment. A structure may be adopted in which the fins 13c, 13c,.

本発明の実施の形態では、被装着部１２を筒部１３の周壁の一部をなすべく放熱部本体１１に設けたが、本実施の形態における天板９の位置に被装着部１２を設けても構わない。   In the embodiment of the present invention, the mounted portion 12 is provided in the heat radiating portion main body 11 so as to form a part of the peripheral wall of the cylindrical portion 13, but the mounted portion 12 is provided at the position of the top plate 9 in the present embodiment. It doesn't matter.

また本実施の形態においては、光源としてＬＥＤを用いているが、これには限定されず、例えばＥＬ（Ｅｌｅｃｔｒｏ Ｌｕｍｉｎｅｓｃｅｎｃｅ）等を用いてもよい。   In this embodiment, an LED is used as a light source. However, the present invention is not limited to this. For example, an EL (Electro Luminescence) may be used.

１ 放熱部
３ 光源モジュール
６ 電源回路
８ 端子台
１１ 放熱部本体
１２ 被装着部
１６ｃ リブ
３２ ＬＥＤ
６２ 電気部品
８１ 電源端子台
８２ 調光端子台 DESCRIPTION OF SYMBOLS 1 Heat radiation part 3 Light source module 6 Power supply circuit 8 Terminal block 11 Heat radiation part main body 12 Mounted part 16c Rib 32 LED
62 Electrical parts 81 Power supply terminal block 82 Dimming terminal block

Claims (9)

光源と、
該光源に電力を供給する電源回路と、
該電源回路及び前記光源からの熱を放熱する放熱部とを備える照明装置であって、
前記放熱部は、前記光源からの熱を放熱する放熱部本体と、前記電源回路を装着し前記電源回路からの熱を外部に放熱する被装着部からなり、
前記被装着部と前記放熱部本体は熱的に分離してあることを特徴とする照明装置。 A light source;
A power supply circuit for supplying power to the light source;
A lighting device comprising the power supply circuit and a heat radiating part that radiates heat from the light source,
The heat dissipating part comprises a heat dissipating part body that dissipates heat from the light source, and a mounted part that dissipates heat from the power supply circuit by mounting the power supply circuit,
The illuminating device, wherein the mounted portion and the heat radiating portion main body are thermally separated. 光源と、
該光源に電力を供給する電源回路と、
前記光源からの熱を放熱する放熱部本体と、
前記電源回路を装着し、前記電源回路からの熱を外部に放熱する被装着部とを備える照明装置であって、
前記放熱部本体及び前記被装着部により前記電源回路を収容する収容部を形成し、
前記放熱部本体と前記被装着部は熱的に分離され、夫々独立に放熱するようにしてあることを特徴とする照明装置。 A light source;
A power supply circuit for supplying power to the light source;
A heat dissipating part main body for dissipating heat from the light source;
A lighting device equipped with the power supply circuit and a mounted portion that radiates heat from the power supply circuit to the outside,
A housing portion for housing the power supply circuit is formed by the heat radiating portion main body and the mounted portion,
The radiating device according to claim 1, wherein the heat radiating portion main body and the mounted portion are thermally separated and each radiates heat independently. 前記被装着部は、前記放熱部本体に着脱自在に設けてあることを特徴とする請求項１または２に記載の照明装置。   The lighting device according to claim 1, wherein the attached portion is detachably provided on the heat radiating portion main body. 前記電源回路は、発熱部品を有し、該発熱部品が前記被装着部に熱的に接続するようにしてあることを特徴とする請求項１から３の何れか一つに記載の照明装置。   The lighting device according to any one of claims 1 to 3, wherein the power supply circuit includes a heat generating component, and the heat generating component is thermally connected to the mounted portion. 前記被装着部は、前記電源回路を装着した状態で前記放熱部本体の周壁の一部をなすべく、前記放熱部本体に設け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 heat sink portion main body according to claim 1, wherein the mounted portion is provided on the heat dissipating portion main body so as to form a part of a peripheral wall of the heat dissipating portion main body in a state where the power supply circuit is mounted. The lighting device described in 1. 前記被装着部と前記放熱部本体の間に断熱材を設けて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 a heat insulating material is provided between the mounted portion and the heat radiating portion main body. 前記被装着部は、前記電源回路が装着される一面以外の面に端子台を設置してあることを特徴とする請求項１から６の何れか一つに記載の照明装置。   The lighting device according to claim 1, wherein a terminal block is installed on a surface of the mounted portion other than the one surface on which the power supply circuit is mounted. 前記放熱部本体は、前記被装着部の周縁の少なくとも一部との間で浸水防止用のリブを有することを特徴とする請求項１から７の何れか一つに記載の照明装置。   The lighting device according to any one of claims 1 to 7, wherein the heat dissipating unit main body includes a rib for preventing water intrusion between at least a part of a periphery of the mounted portion. 前記放熱部本体は、外部の空気との接触面積を広げるためのピン状のフィンを有することを特徴とする請求項１から８の何れか一つに記載の照明装置。   The lighting device according to any one of claims 1 to 8, wherein the heat dissipating unit main body includes pin-shaped fins for expanding a contact area with external air.

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