JP5669092B2 - LED unit and lighting apparatus - Google Patents

LED unit and lighting apparatus Download PDF

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JP5669092B2
JP5669092B2 JP2011012211A JP2011012211A JP5669092B2 JP 5669092 B2 JP5669092 B2 JP 5669092B2 JP 2011012211 A JP2011012211 A JP 2011012211A JP 2011012211 A JP2011012211 A JP 2011012211A JP 5669092 B2 JP5669092 B2 JP 5669092B2
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led
unit
led unit
leds
light
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JP2012155899A (en
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泰生 上本
泰生 上本
茂樹 奥代
茂樹 奥代
範男 伊藤
範男 伊藤
徹人 秋月
徹人 秋月
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Panasonic Intellectual Property Management Co Ltd
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本発明は、ＬＥＤ光源を用いたＬＥＤユニットおよびこのＬＥＤユニットを用いた照明器具に関するものである。   The present invention relates to an LED unit using an LED light source and a lighting fixture using the LED unit.

従来より、ＬＥＤ光源を有するＬＥＤユニットが用いられている（例えば、特許文献１参照）。
図１３に示すように、特許文献１に記載のＬＥＤライト１００は、長手方向に沿って基板保持具１０１を有する。基板保持具１０１のＺ軸方向の上面には、Ｙ軸方向に延在するＬＥＤ基板１０２がＸ軸方向に２列配置されており、ＬＥＤ基板１０２には複数のＬＥＤ素子１０３が実装されている。ＬＥＤ素子１０３の前方には、光拡散板１０４が配置されている。
ＬＥＤ基板１０２の後方には、ＬＥＤ素子１０３が発する熱を放熱する放熱構造体１０５が配設され、放熱構造体１０５は基板保持具１０１を支持している。 Conventionally, an LED unit having an LED light source has been used (see, for example, Patent Document 1).
As shown in FIG. 13, the LED light 100 described in Patent Document 1 includes a substrate holder 101 along the longitudinal direction. Two rows of LED substrates 102 extending in the Y-axis direction are arranged on the upper surface in the Z-axis direction of the substrate holder 101, and a plurality of LED elements 103 are mounted on the LED substrate 102. . A light diffusion plate 104 is disposed in front of the LED element 103.
A heat dissipation structure 105 that dissipates heat generated by the LED elements 103 is disposed behind the LED substrate 102, and the heat dissipation structure 105 supports the substrate holder 101.

また、放熱構造体１０５の背面には、外装カバー１０６が設けられている。外装カバー１０６は、基板保持具１０１および光拡散板１０４の側面を一体的に覆うカバー本体１０６Ａを有しており、両端の開口部１０６Ｂには、キャップ１０７が取り付けられる。
光拡散板１０４の光入射面１０４Ａには、長手方向に沿って複数の凸状の円弧面１０４Ｂが連続して設けられており、円弧面１０４Ｂには、幅方向に多数の微小凹凸１０４Ｃが形成されている。 In addition, an exterior cover 106 is provided on the back surface of the heat dissipation structure 105. The exterior cover 106 includes a cover body 106A that integrally covers the side surfaces of the substrate holder 101 and the light diffusion plate 104, and caps 107 are attached to the opening portions 106B at both ends.
The light incident surface 104A of the light diffusing plate 104 is provided with a plurality of convex arc surfaces 104B continuously along the longitudinal direction, and a large number of minute irregularities 104C are formed in the width direction on the arc surface 104B. Has been.

これにより、点状光源であるＬＥＤ素子１０３を用いて被照射面において明度のムラが少ない線状光を得ることが可能となり、より自然な線状光を得ることができる。
なお、ＬＥＤ基板１０２に電力を供給するためのコネクタ（図示省略）は、ＬＥＤ基板１０２の背面に設けられている。 Thereby, it becomes possible to obtain linear light with little unevenness in brightness on the irradiated surface using the LED element 103 which is a point light source, and more natural linear light can be obtained.
A connector (not shown) for supplying power to the LED board 102 is provided on the back surface of the LED board 102.

特開２０１０−１７６９０４号公報（第１図）JP 2010-176904 A (FIG. 1)

しかしながら、前述した特許文献１に記載の従来のＬＥＤライト１００においては、ＬＥＤ基板１０２に電力を供給するためのコネクタが、ＬＥＤ基板１０２の背面に設けられているため、事実上両面実装の形態を呈しており、薄型化が図れないという問題があった。   However, in the conventional LED light 100 described in Patent Document 1 described above, since a connector for supplying power to the LED substrate 102 is provided on the back surface of the LED substrate 102, a form of double-sided mounting is practically used. Presents a problem that it cannot be thinned.

本発明は、従来の問題を解決するためになされたもので、薄型化が図れるＬＥＤユニットおよび照明器具を提供することを目的とする。   SUMMARY An advantage of some aspects of the invention is to provide an LED unit and a lighting fixture that can be reduced in thickness.

本発明のＬＥＤユニットは、照明器具の器具本体に取り付けられるＬＥＤユニットであって、矩形板状かつ長尺であり、表面に、前方に向けて光を発する複数のＬＥＤが長手方向に沿って配置され、前記表面の、前記ＬＥＤ基板の長手方向の両端部の位置に、前記複数のＬＥＤへの給電に用いられる第１、第２のコネクタが配置されるＬＥＤ基板と、前記ＬＥＤ基板の後方に位置するＬＥＤユニット本体と、箱状であり、前記ＬＥＤユニット本体の前方に位置し、前記ＬＥＤユニット本体と共に、前記ＬＥＤ基板を収容するケースを構成し、前記ＬＥＤ基板の前方に、レンズとしての透光性の前壁が設けられ、かつ、前記前壁において部分的に、光を拡散する光拡散部が設けられる投光部材と、を有し、前記光拡散部は、前記投光部材の前記前壁における長手方向の両端部の、前記第１、第２のコネクタおよび前記第１、第２のコネクタに最も近い位置のＬＥＤの前方である領域に設けられるものである。 The LED unit of the present invention is an LED unit that is attached to a fixture main body of a lighting fixture, and is a rectangular plate shape and long, and a plurality of LEDs that emit light forward are arranged along the longitudinal direction on the surface. An LED board on which the first and second connectors used to feed power to the plurality of LEDs are disposed at both ends of the surface of the LED board in the longitudinal direction; and behind the LED board. The LED unit main body is located in a box shape, is located in front of the LED unit main body, and together with the LED unit main body constitutes a case for housing the LED substrate, and in front of the LED substrate, a transparent lens as a lens is formed. And a light projecting member provided with a light diffusing part for diffusing light partially on the front wall, wherein the light diffusing part is provided on the light projecting member. The longitudinal ends of the wall, the first, second connector and the first and is provided in a region which is in front of the LED closest to the second connector.

また、本発明のＬＥＤユニットは、前記複数のＬＥＤは、第１の種類のＬＥＤ群と、前記第１の種類のＬＥＤ群とは発光色が異なる第２の種類のＬＥＤ群を有し、前記第１の種類のＬＥＤ群に属するＬＥＤを第１のＬＥＤとし、前記第２の種類のＬＥＤ群に属するＬＥＤを第２のＬＥＤとする場合に、前記第１のコネクタと前記第２のコネクタとの間において、前記第１、第２のＬＥＤが、前記ＬＥＤ基板の長手方向に沿って混在して一列に配置され、前記一列における前記第１のＬＥＤは、第１の配線によって、前記第１、第２のコネクタ間に直列に接続され、前記一列における前記第２のＬＥＤは、前記第１の配線とは電気的に独立である第２の配線で、前記第１、第２のコネクタ間に直列に接続され、前記光拡散部は、前記投光部材の前記前壁における長手方向の両端部の、隣接して配置されている第１のＬＥＤおよび第２のＬＥＤの前方である領域に設けられるものである。 Further, in the LED unit of the present invention, the plurality of LEDs include a first type LED group and a second type LED group having a light emission color different from that of the first type LED group, When the LED belonging to the first type LED group is the first LED and the LED belonging to the second type LED group is the second LED , the first connector and the second LED Between the connector, the first and second LEDs are mixed and arranged in a line along the longitudinal direction of the LED substrate, and the first LEDs in the line are arranged in a row by a first wiring. The second LEDs connected in series between the first and second connectors, and the second LEDs in the row are second wirings that are electrically independent of the first wirings. Connected in series between connectors, the light diffusing portion is the light projecting member The longitudinal ends of the front wall, is shall be provided in a region which is forward of the first LED and a second LED which are arranged adjacent.

また、本発明の照明器具は、上記いずれかのＬＥＤユニットが、前記器具本体に取り付けられてなるものである。 Moreover , the lighting fixture of this invention is formed by attaching any of the above LED units to the fixture main body .

本発明は、コネクタおよび複数のＬＥＤ光源をＬＥＤ基板の同じ側面に実装するとともに、コネクタを複数のＬＥＤ光源の外側に配設したので、ＬＥＤユニットの薄型化を図ることができるとともに、幅方向の寸法を小さくできる。また、ＬＥＤ光源の前方に設けられる投光部材において複数のＬＥＤ光源のうちのコネクタに隣接する端部のＬＥＤ光源およびコネクタの前方領域に光拡散部を設けたので、コネクタの前方が暗くなるのを防止できるという効果を有するＬＥＤユニットおよび照明器具を提供できる。   In the present invention, since the connector and the plurality of LED light sources are mounted on the same side surface of the LED substrate, and the connector is disposed outside the plurality of LED light sources, the LED unit can be thinned and the width direction of the LED unit can be reduced. The dimensions can be reduced. In addition, in the light projecting member provided in front of the LED light source, the light diffusion part is provided in the front region of the LED light source and the connector adjacent to the connector among the plurality of LED light sources, so the front of the connector becomes dark. It is possible to provide an LED unit and a lighting fixture having an effect of preventing the above.

本発明に係る実施形態の照明器具を下方から見た全体斜視図The whole perspective view which looked at the lighting fixture of the embodiment concerning the present invention from the lower part 本発明に係る実施形態の照明器具を下方から見た分解斜視図The exploded perspective view which looked at the lighting fixture of embodiment which concerns on this invention from the downward direction 本発明に係る実施形態の照明器具の中心を通る断面図Sectional drawing which passes along the center of the lighting fixture of embodiment which concerns on this invention 本発明に係る実施形態の照明器具を上方から見た平面図The top view which looked at the lighting fixture of embodiment which concerns on this invention from upper direction （Ａ）はＬＥＤユニットを前方上側から見た全体斜視図であり、（Ｂ）はＬＥＤユニットを後方下側から見た全体斜視図(A) is the whole perspective view which looked at the LED unit from the front upper side, (B) is the whole perspective view which looked at the LED unit from the back lower side （Ａ）はＬＥＤユニットを前方上側から見た分解斜視図であり、（Ｂ）はＬＥＤユニットを後方下側から見た分解斜視図(A) is the exploded perspective view which looked at the LED unit from the front upper side, (B) is the exploded perspective view which looked at the LED unit from the back lower side （Ａ）はＬＥＤユニットの取付け位置を示す斜視図であり、（Ｂ）はＬＥＤユニットを取り付けた状態を示す拡大斜視図(A) is a perspective view which shows the attachment position of an LED unit, (B) is an enlarged perspective view which shows the state which attached the LED unit. （Ａ）はＬＥＤユニットの斜視図であり、（Ｂ）は電線の接続状態を示す拡大斜視図(A) is a perspective view of an LED unit, (B) is an enlarged perspective view showing a connection state of electric wires. 異なる２種類のＬＥＤ光源の配置を示すＬＥＤ基板の平面図Plan view of LED board showing the arrangement of two different types of LED light sources （Ａ）は投光部材を上方から見た平面図であり、（Ｂ）は（Ａ）中Ｂ部分の拡大図(A) is the top view which looked at the light projection member from the upper part, (B) is an enlarged view of B part in (A). （Ａ）はＬＥＤユニットを前方から見た透視図であり、（Ｂ）は（Ａ）中Ｂ部分の拡大図(A) is the perspective view which looked at the LED unit from the front, (B) is an enlarged view of B part in (A). 光の照射状態を示す説明図Explanatory drawing showing the irradiation state of light 従来の照明器具の分解斜視図Exploded perspective view of a conventional lighting fixture

以下、本発明に係る実施形態の照明器具について、図面を用いて説明する。
なお、以下の説明においては、照明器具を被取付面である天井面に取り付けて下方を照明する場合について説明する。従って、特に示す場合を除き、上（上方、上側等）は天井面側を意味し、下（下方，下側等）は床面側を意味する。 Hereinafter, the lighting fixture of embodiment which concerns on this invention is demonstrated using drawing.
In addition, in the following description, the case where a lighting fixture is attached to the ceiling surface which is a to-be-attached surface, and the downward direction is illuminated is demonstrated. Therefore, unless otherwise indicated, upper (upper, upper, etc.) means the ceiling surface side, and lower (lower, lower, etc.) means the floor surface side.

図１に示すように、本発明に係る実施形態の照明器具１０は、被取付面である天井面１１等に取り付けられて主に下方を照明するのに適する。
図２および図３に示すように、照明器具１０は、天井面１１に取り付けられている引っ掛けシーリング１２に取り付けるための取付金具２１を中央に有する例えば正方形の板状の器具本体２０を有する。 As shown in FIG. 1, the lighting fixture 10 of embodiment which concerns on this invention is suitable for attaching to the ceiling surface 11 grade | etc., Which is a to-be-attached surface, and mainly illuminating below.
As shown in FIG. 2 and FIG. 3, the lighting fixture 10 has, for example, a square plate-like fixture main body 20 having a fitting 21 for attachment to the hook ceiling 12 attached to the ceiling surface 11.

器具本体２０の上側（すなわち、天井面１１側）には、ＬＥＤユニット３０であるアッパーユニット３０Ａ、上枠２３および上パネル２２が設けられている。また、器具本体２０の下側（すなわち、照明方向側）には、ＬＥＤユニット３０であるロアーユニット３０Ｂ、反射部材である反射板２４が設けられており、反射板２４の下方には、受けた光を拡散する透光性のパネル２５が取り付けられる。   An upper unit 30 </ b> A that is an LED unit 30, an upper frame 23, and an upper panel 22 are provided on the upper side of the instrument body 20 (that is, on the ceiling surface 11 side). Further, a lower unit 30B that is an LED unit 30 and a reflecting plate 24 that is a reflecting member are provided on the lower side of the instrument body 20 (that is, on the illumination direction side). A translucent panel 25 that diffuses light is attached.

次に、アッパーユニット３０Ａおよびロアーユニット３０Ｂに用いられるＬＥＤユニット３０について説明する。
なお、以下においては、特にアッパーユニット３０Ａおよびロアーユニット３０Ｂを区別する場合を除き、ＬＥＤユニット３０として説明する。
図４に示すように、アッパーユニット３０Ａは、器具本体２０の上側において、四方外向きに設けられている。また、ロアーユニット３０Ｂは、器具本体２０の下側において、２カ所に設けられており、内側へ光を照射するようになっている。 Next, the LED unit 30 used for the upper unit 30A and the lower unit 30B will be described.
In the following description, the LED unit 30 will be described unless the upper unit 30A and the lower unit 30B are particularly distinguished.
As shown in FIG. 4, the upper unit 30 </ b> A is provided outward in all directions on the upper side of the instrument body 20. Further, the lower unit 30B is provided at two places on the lower side of the instrument body 20, and radiates light inward.

図５および図６に示すように、ＬＥＤユニット３０は、細長い矩形箱状のケース３３を有する。
ケース３３は、照射方向後方（以後、「後方」という。）に配置される矩形板状のＬＥＤユニット本体３１と、照射方向前方（以後、「前方」という。）に配置される矩形箱状の投光部材３２とで構成される。 As shown in FIGS. 5 and 6, the LED unit 30 has an elongated rectangular box-shaped case 33.
The case 33 has a rectangular plate-like LED unit main body 31 disposed behind the irradiation direction (hereinafter referred to as “rear”) and a rectangular box-like shape disposed forward of the irradiation direction (hereinafter referred to as “front”). And a light projecting member 32.

ＬＥＤユニット本体３１は、下端から前方に突出片３１１が設けられており、全体として断面Ｌ字形状を呈している。ＬＥＤユニット本体３１の後面および突出片３１１の上面には、各々放熱用のフィン３１２，３１３が設けられている。
また、突出片３１１の下面中央には、ＬＥＤユニット３０の位置決めを行う位置決め突起３１５が設けられる。 The LED unit main body 31 is provided with a protruding piece 311 forward from the lower end, and has an L-shaped cross section as a whole. Heat radiation fins 312 and 313 are provided on the rear surface of the LED unit main body 31 and the upper surface of the protruding piece 311, respectively.
A positioning projection 315 for positioning the LED unit 30 is provided at the center of the lower surface of the protruding piece 311.

ＬＥＤユニット本体３１の前面には、放熱板としての放熱シート３５が設けられ、放熱シート３５の前面にＬＥＤ基板３６が配設される。
ＬＥＤ基板３６の前面である実装面３６１には、多数のＬＥＤ光源３７が実装される。また、実装面３６１においてＬＥＤ光源３７の外側である長手方向両端部には、電気配線３４が接続されて電力の供給を受けるコネクタ３８が取り付けられる。 A heat radiating sheet 35 as a heat radiating plate is provided on the front surface of the LED unit main body 31, and an LED substrate 36 is disposed on the front surface of the heat radiating sheet 35.
A large number of LED light sources 37 are mounted on a mounting surface 361 which is the front surface of the LED substrate 36. In addition, connectors 38 that are connected to the electrical wiring 34 and receive power supply are attached to both ends of the mounting surface 361 in the longitudinal direction outside the LED light source 37.

従って、ＬＥＤ基板３６は、放熱シート３５を介してＬＥＤユニット本体３１に接触して放熱経路を形成しており、ＬＥＤ光源３７が発した熱は、ＬＥＤ基板３６から放熱シート３５を介してＬＥＤユニット本体３１に伝達される。そして、ＬＥＤユニット本体３１背面のフィン３１２および突出片３１１の上面のフィン３１３から放熱される。また、熱は、突出片３１１を介して器具本体２０に伝達されて、放熱される。
これにより、ＬＥＤ光源３７が発した熱を効率的に放熱できるので、ＬＥＤユニット３０の寿命を大幅に延ばすことができる。 Accordingly, the LED substrate 36 is in contact with the LED unit main body 31 via the heat dissipation sheet 35 to form a heat dissipation path, and heat generated by the LED light source 37 is transmitted from the LED substrate 36 via the heat dissipation sheet 35 to the LED unit. It is transmitted to the main body 31. Then, heat is radiated from the fins 312 on the back surface of the LED unit main body 31 and the fins 313 on the upper surface of the protruding piece 311. Further, the heat is transmitted to the instrument body 20 through the protruding piece 311 and is radiated.
Thereby, since the heat | fever which the LED light source 37 emitted can be thermally radiated efficiently, the lifetime of the LED unit 30 can be extended significantly.

図９に示すように、ＬＥＤ基板３６の実装面３６１には、種類が異なる複数の第１のＬＥＤ光源３７Ａと複数の第２のＬＥＤ光源３７Ｂが実装されている。なお、２種類のＬＥＤ光源３７Ａ、３７Ｂを総称する際には、「ＬＥＤ光源３７」と表示する。
複数の第１のＬＥＤ光源３７Ａは、第１の回路３９Ａにより直列に接続されており、複数の第２のＬＥＤ光源３７Ｂは、第１のＬＥＤ光源３７Ａとは別系統で、第２の回路３９Ｂにより直列に接続されている。
従って、第１のＬＥＤ光源３７Ａと第２のＬＥＤ光源３７Ｂは、個別に制御可能となっている。
また、第１の回路３９Ａと第２の回路３９Ｂとは別個であり、例えば、クランク状に配線することができる。このとき、第１の回路３９Ａおよび第２の回路３９Ｂのクランク形状が、平行となるように配線する。 As shown in FIG. 9, a plurality of first LED light sources 37 </ b> A and a plurality of second LED light sources 37 </ b> B of different types are mounted on the mounting surface 361 of the LED substrate 36. In addition, when naming two types of LED light sources 37A and 37B generically, "LED light source 37" is displayed.
The plurality of first LED light sources 37A are connected in series by the first circuit 39A, and the plurality of second LED light sources 37B are separate from the first LED light source 37A, and the second circuit 39B. Are connected in series.
Accordingly, the first LED light source 37A and the second LED light source 37B can be individually controlled.
Also, the first circuit 39A and the second circuit 39B are separate and can be wired in a crank shape, for example. At this time, wiring is performed so that the crank shapes of the first circuit 39A and the second circuit 39B are parallel to each other.

第１のＬＥＤ光源３７Ａと第２のＬＥＤ光源３７Ｂは、各々偶数個（ここでは、例えば２個）をひとかたまりとして、交互に配置されている。そして、端部においては、その隣（内側）に配設されたＬＥＤ光源３７とは異なる種類のＬＥＤ光源３７が配設される。
例えば、図９中、左端部では、端部に第１のＬＥＤ光源３７Ａが配設されているので、その右隣には、異なる種類の第２のＬＥＤ光源３７Ｂが配設される。
また、図９中、右端部では、端部に第２のＬＥＤ光源３７Ｂが配設されているので、その左隣には、異なる種類の第１のＬＥＤ光源３７Ａが配設される。
なお、左端部と右端部を同じＬＥＤ光源３７を配設することも可能である。 The first LED light source 37A and the second LED light source 37B are alternately arranged with each even number (for example, two) as a group. And in the edge part, the LED light source 37 of a kind different from the LED light source 37 arrange | positioned next (inner side) is arrange | positioned.
For example, in FIG. 9, since the first LED light source 37A is disposed at the left end portion, a different type of second LED light source 37B is disposed on the right side.
In FIG. 9, the second LED light source 37 </ b> B is disposed at the right end portion at the right end portion, and therefore different types of first LED light sources 37 </ b> A are disposed on the left side of the second LED light source 37 </ b> B.
In addition, it is also possible to arrange | position the LED light source 37 with the same left end part and right end part.

図６に示すように、前面にＬＥＤ光源３７を実装したＬＥＤ基板３６の前方には、ＬＥＤユニット本体３１とともにケース３３を構成する投光部材３２が取り付けられる。投光部材３２は、難燃性の樹脂で形成され、後方が開口した箱状部材である。
投光部材３２の前壁３２１は透光性のレンズであり、内部にＬＥＤ基板３６を収容して、後方の開口にＬＥＤユニット本体３１をねじ３０１で固定して蓋がされる。 As shown in FIG. 6, a light projecting member 32 that constitutes a case 33 together with the LED unit main body 31 is attached in front of the LED substrate 36 on which the LED light source 37 is mounted on the front surface. The light projecting member 32 is a box-shaped member that is formed of a flame-retardant resin and has an open rear side.
The front wall 321 of the light projecting member 32 is a translucent lens. The LED substrate 36 is accommodated therein, and the LED unit main body 31 is fixed to the rear opening with a screw 301 and covered.

図６および図８（Ａ）に示すように、投光部材３２の下面３２２における長手方向両端部には、電気配線３４をケース３３内部に引き込むための電線引き込み部３２３を各々有する。
電線引き込み部３２３を通ってケース３３内部に引き込まれた電気配線３４は、ＬＥＤ基板３６の実装面３６１に取り付けられているコネクタ３８に接続される。 As shown in FIGS. 6 and 8A, at both ends in the longitudinal direction of the lower surface 322 of the light projecting member 32, there are wire lead-in portions 323 for drawing the electrical wiring 34 into the case 33, respectively.
The electrical wiring 34 drawn into the case 33 through the wire lead-in part 323 is connected to a connector 38 attached to the mounting surface 361 of the LED board 36.

図１０に示すように、投光部材３２の前壁３２１の内面における長手方向両端部には、光拡散部３２４が設けられている。光拡散部３２４では、前壁３２１の内面に上下方向に延びる複数の山型形状の凹凸３２５が設けられている。
図１１に示すように、光拡散部３２４は、投光部材３２の端部から、コネクタ３８および少なくとも端部のＬＥＤ光源３７の前方領域まで設ける。 As shown in FIG. 10, light diffusion portions 324 are provided at both ends in the longitudinal direction on the inner surface of the front wall 321 of the light projecting member 32. In the light diffusion portion 324, a plurality of mountain-shaped irregularities 325 extending in the vertical direction are provided on the inner surface of the front wall 321.
As shown in FIG. 11, the light diffusion portion 324 is provided from the end portion of the light projecting member 32 to the connector 38 and at least the front region of the LED light source 37 at the end portion.

さらに、光拡散部３２４は、第１のＬＥＤ光源３７Ａおよび第２のＬＥＤ光源３７Ｂの両方が少なくとも一つずつ含まれるように設けるのが望ましい。
例えば、図１１（Ｂ）では、光拡散部３２４は、端部に設けられている第１のＬＥＤ光源３７Ａと、この第１のＬＥＤ光源３７Ａに隣接し、種類が異なる２個の第２のＬＥＤ光源３７Ｂのうちの一つを含むように設けられている。 Furthermore, it is desirable that the light diffusing unit 324 be provided so that at least one of both the first LED light source 37A and the second LED light source 37B is included.
For example, in FIG. 11B, the light diffusing unit 324 includes a first LED light source 37A provided at an end, and two second types of different light sources adjacent to the first LED light source 37A. It is provided so as to include one of the LED light sources 37B.

このように構成されるＬＥＤユニット３０は、図７に示すように、ＬＥＤユニット３０を器具本体２０に取り付ける際には、ＬＥＤユニット本体３１の突出片３１１下面の位置決め突起３１５を、器具本体２０に設けられている位置決め孔２０１に嵌合させて、取付ねじ２６により着脱可能に取り付ける。
このため、ＬＥＤユニット３０の位置決めを，容易に，確実に行うことができる。 As shown in FIG. 7, the LED unit 30 configured as described above has a positioning protrusion 315 on the lower surface of the protruding piece 311 of the LED unit body 31 on the instrument body 20 when the LED unit 30 is attached to the instrument body 20. It fits in the provided positioning hole 201 and is detachably attached by the attachment screw 26.
For this reason, the positioning of the LED unit 30 can be performed easily and reliably.

図２および図３に示したように、ロアーユニット３０Ｂの下方には、パネル２５が着脱可能に取り付けられる。パネル２５は、照射された光を拡散するものであり、複数箇所に、光透過率が低いパネルカバー２５１が設けられている。
例えば、パネルカバー２５１は、パネル２５において器具本体２０の中心に対して対称な端部付近の対向する２辺に沿って設けられている。また、パネルカバー２５１は、ロアーユニット３０Ｂが設けられている位置に対応して設けられている。 As shown in FIGS. 2 and 3, the panel 25 is detachably attached below the lower unit 30B. The panel 25 diffuses irradiated light, and a panel cover 251 having a low light transmittance is provided at a plurality of locations.
For example, the panel cover 251 is provided along two opposing sides in the vicinity of the end portion of the panel 25 that is symmetric with respect to the center of the instrument body 20. The panel cover 251 is provided corresponding to the position where the lower unit 30B is provided.

また、パネルカバー２５１は、第１の孔２５２および第２の孔２５３を有し、内側には、明るさセンサ、人感センサ、熱センサ、信号送信装置からの信号を受信するための受信センサのうちの少なくとも一つが配設することができる。   Further, the panel cover 251 has a first hole 252 and a second hole 253, and on the inner side, a brightness sensor, a human sensor, a heat sensor, and a reception sensor for receiving signals from a signal transmission device. At least one of the can be disposed.

図１２に示すように、上述したＬＥＤユニット３０を用いた照明器具１０では、器具本体２０の下側に設けられているロアーユニット３０Ｂから照明器具１０の内部に向かって発せられた光Ｌ１は、反射板２４で下方に反射してパネル２５に入射して拡散する。これにより、パネル２５全体が光源となって下方を照明する。
一方、器具本体２０の上側に設けられているアッパーユニット３０Ａから照明器具１０の外側へ発せられた光Ｌ２は、一部は天井面１１と平行に照射されて、壁面Ｗを照明する。また、一部は上方へ照射されて天井面１１に当たり、下方へ反射して壁面Ｗを照明する。さらに、一部は下方へ照射されて照明器具１０の上枠２３に当たって上方へ反射し，天井面１１を照明する。あるいは、さらに天井面１１で反射して壁面Ｗを照明する。 As shown in FIG. 12, in the lighting fixture 10 using the LED unit 30 described above, the light L1 emitted toward the inside of the lighting fixture 10 from the lower unit 30B provided on the lower side of the fixture main body 20 is The light is reflected downward by the reflecting plate 24 and is incident on the panel 25 and diffuses. Thereby, the whole panel 25 becomes a light source and illuminates the lower part.
On the other hand, a part of the light L2 emitted from the upper unit 30A provided on the upper side of the fixture body 20 to the outside of the lighting fixture 10 is irradiated in parallel with the ceiling surface 11 to illuminate the wall surface W. Further, a part of the light is irradiated upward, hits the ceiling surface 11, and reflects downward to illuminate the wall surface W. Further, a part is irradiated downward, hits the upper frame 23 of the lighting fixture 10 and is reflected upward to illuminate the ceiling surface 11. Alternatively, the wall surface W is further reflected by the ceiling surface 11.

以上、説明した本発明に係る実施形態のＬＥＤユニット３０によれば、ＬＥＤ光源３７を収容するケース３３からＬＥＤ光源３７の前方に突出する突出片３１１を設け、この突出片３１１を器具本体２０に着脱可能に取り付けたので、ＬＥＤユニット３０を容易に交換することができる。   As described above, according to the LED unit 30 of the embodiment according to the present invention described above, the protruding piece 311 that protrudes in front of the LED light source 37 from the case 33 that houses the LED light source 37 is provided. Since it was attached so that attachment or detachment was possible, the LED unit 30 can be replaced | exchanged easily.

また、突出片３１１と同じ方向に、電気配線３４をケース３３内部に引き込む電線引き込み部３２３を設けたので、ＬＥＤユニット３０の下方の無駄なスペースを配線に使用することができる。   In addition, since the electric wire drawing portion 323 for drawing the electric wiring 34 into the case 33 is provided in the same direction as the protruding piece 311, a useless space below the LED unit 30 can be used for the wiring.

また、突出片３１１と同じ方向に、電気配線３４をケース３３内部に引き込む電線引き込み部３２３を設けたので、ＬＥＤユニット３０の下方の無駄なスペースを配線に使用することができる。   In addition, since the electric wire drawing portion 323 for drawing the electric wiring 34 into the case 33 is provided in the same direction as the protruding piece 311, a useless space below the LED unit 30 can be used for the wiring.

さらに、本発明に係る実施形態の照明器具１０は、前述したＬＥＤユニット３０を器具本体２０に取り付けたものなので、ＬＥＤユニット３０を容易に交換することができる。   Furthermore, since the lighting fixture 10 of embodiment which concerns on this invention attaches the LED unit 30 mentioned above to the fixture main body 20, it can replace | exchange LED unit 30 easily.

また、本発明に係る実施形態のＬＥＤユニット３０によれば、種類が異なる第１のＬＥＤ光源３７Ａと第２のＬＥＤ光源３７Ｂとを有するＬＥＤユニット３０において、複数の第１のＬＥＤ光源３７Ａを直列に接続するとともに複数の第２のＬＥＤ光源３７Ｂを第１のＬＥＤ光源３７Ａとは別系統で直列に接続する。そして、偶数の第１のＬＥＤ光源３７Ａと偶数の第２のＬＥＤ光源３７Ｂとを交互に配置したので、ＬＥＤ基板３６におけるパターン配線を短くして接続できる。
また、チップジャンパー抵抗等の部品も削減できるので、コストアップを回避できる。
さらに、ＬＥＤ基板３６として（プリント）基板の表裏両面をパターン印刷に用いる必要がないので、ＬＥＤ基板３６の実装面と反対側面を放熱に利用できる。 Moreover, according to the LED unit 30 of the embodiment according to the present invention, in the LED unit 30 having the first LED light source 37A and the second LED light source 37B of different types, a plurality of first LED light sources 37A are connected in series. And a plurality of second LED light sources 37B are connected in series in a separate system from the first LED light source 37A. Since the even-numbered first LED light sources 37A and the even-numbered second LED light sources 37B are alternately arranged, the pattern wiring on the LED substrate 36 can be shortened and connected.
Further, since the number of components such as chip jumper resistors can be reduced, an increase in cost can be avoided.
Furthermore, since it is not necessary to use both the front and back surfaces of the (printed) substrate for pattern printing as the LED substrate 36, the side surface opposite to the mounting surface of the LED substrate 36 can be used for heat dissipation.

また、ＬＥＤユニット３０の端部では、異なる種類のＬＥＤ光源３７が隣接して配設されるので、複数の光色を有するＬＥＤ光源３７を同時に点灯させた際に、複数の光色がきれいに混ざる。   Further, since different types of LED light sources 37 are disposed adjacent to each other at the end of the LED unit 30, when the LED light sources 37 having a plurality of light colors are simultaneously turned on, a plurality of light colors are mixed neatly. .

また、異なる種類の第１のＬＥＤ光源３７Ａと第２のＬＥＤ光源３７Ｂとが，個別に制御可能であるので、調光および調色が容易である。   In addition, since the different types of the first LED light source 37A and the second LED light source 37B can be individually controlled, light adjustment and color adjustment are easy.

また、異なる種類の第１のＬＥＤ光源３７Ａおよび第２のＬＥＤ光源３７Ｂが、クランク状に配線されているので、配線がすっきりしており、配線のパターン設計が容易である。また、配線の長さが等しくなるので、制御が容易である。   Further, since the different types of the first LED light source 37A and the second LED light source 37B are wired in a crank shape, the wiring is clear and the wiring pattern design is easy. Moreover, since the lengths of the wirings are equal, control is easy.

さらに、本発明に係る実施形態の照明器具１０は、前述したＬＥＤユニット３０を用いるので、ＬＥＤ基板３６におけるパターン配線を短くして接続でき、また、チップジャンパー抵抗等の部品も削減できるので、コストダウンを図ることができる。
また、ＬＥＤユニット３０において、ＬＥＤ基板３６として両面基板を用いる必要がないので、ＬＥＤ基板３６の実装面とは反対側面を放熱に利用でき、ＬＥＤユニット３０の長寿命化を図り、照明器具の長寿命化を図ることができる。 Furthermore, since the lighting fixture 10 of the embodiment according to the present invention uses the LED unit 30 described above, the pattern wiring on the LED board 36 can be shortened and connected, and components such as a chip jumper resistor can be reduced. You can go down.
Further, in the LED unit 30, since it is not necessary to use a double-sided board as the LED board 36, the side surface opposite to the mounting surface of the LED board 36 can be used for heat dissipation, and the life of the LED unit 30 can be extended. Life can be extended.

また、本発明に係る実施形態のＬＥＤユニット３０によればコネクタ３８および複数のＬＥＤ光源３７をＬＥＤ基板３６の同じ側面に実装するとともに、コネクタ３８を複数のＬＥＤ光源３７の外側に配設したので、ＬＥＤユニット３０の薄型化を図ることができるとともに、幅方向の寸法を小さくできる。
また、ＬＥＤ光源３７の前方に設けられる投光部材３２において複数のＬＥＤ光源３７のうちのコネクタ３８に隣接する端部のＬＥＤ光源３７およびコネクタ３８の前方領域に光拡散部３２４を設けたので、コネクタ３８の前方が暗くなるのを防止できる。 In addition, according to the LED unit 30 of the embodiment of the present invention, the connector 38 and the plurality of LED light sources 37 are mounted on the same side surface of the LED substrate 36, and the connector 38 is disposed outside the plurality of LED light sources 37. The LED unit 30 can be thinned and the width dimension can be reduced.
In addition, in the light projecting member 32 provided in front of the LED light source 37, the light diffusion part 324 is provided in the front region of the LED light source 37 and the connector 38 at the end adjacent to the connector 38 among the plurality of LED light sources 37. It is possible to prevent the front of the connector 38 from becoming dark.

また、複数のＬＥＤ光源３７が異なる種類の第１のＬＥＤ光源３７Ａおよび第２のＬＥＤ光源３７Ｂから構成される場合に、第１のＬＥＤ光源３７Ａおよび第２のＬＥＤ光源３７Ｂの両方の前方には光拡散部３２４を配設したので、第１のＬＥＤ光源３７Ａおよび第２のＬＥＤ光源３７Ｂが点灯した際に、端部でもきれいに混ざった光を配光できる。   In addition, when the plurality of LED light sources 37 are composed of different types of the first LED light source 37A and the second LED light source 37B, in front of both the first LED light source 37A and the second LED light source 37B. Since the light diffusing unit 324 is provided, when the first LED light source 37A and the second LED light source 37B are turned on, the light that is mixed neatly at the end can be distributed.

さらに、本発明に係る実施形態の照明器具１０は、前述したＬＥＤユニット３０を用いたので、照明器具１０のコンパクト化を図ることができる。
また、投光部材３２において複数のＬＥＤ光源３７のうちのコネクタ３８に隣接する端部のＬＥＤ光源３７およびコネクタ３８の前方領域に光拡散部３２４を設けたので、コネクタ３８の前方が暗くなるのを防止できる。 Furthermore, since the lighting fixture 10 of the embodiment according to the present invention uses the LED unit 30 described above, the lighting fixture 10 can be made compact.
In addition, since the light diffusing portion 324 is provided in the front region of the LED light source 37 and the connector 38 adjacent to the connector 38 among the plurality of LED light sources 37 in the light projecting member 32, the front of the connector 38 becomes dark. Can be prevented.

なお、本発明のＬＥＤユニット３０および照明器具１０は、前述した実施形態に限定されるものでなく、適宜な変形，改良等が可能である。
例えば、前述した実施形態においては、アッパーユニット３０Ａとロアーユニット３０Ｂとに同じＬＥＤユニット３０を用いた場合について説明したが、基本的な構造が同じであれば、サイズ等が異なるものであっても良い。 In addition, the LED unit 30 and the lighting fixture 10 of this invention are not limited to embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.
For example, in the above-described embodiment, the case where the same LED unit 30 is used for the upper unit 30A and the lower unit 30B has been described. However, as long as the basic structure is the same, the size may be different. good.

１０ 照明器具
３０ ＬＥＤユニット
３２ 投光部材
３２４ 光拡散部
３６ ＬＥＤ基板
３６１ 実装面（同じ側面）
３７ ＬＥＤ光源
３７Ａ 第１のＬＥＤ光源
３７Ｂ 第２のＬＥＤ光源
３８ コネクタ DESCRIPTION OF SYMBOLS 10 Lighting fixture 30 LED unit 32 Light projection member 324 Light diffusion part 36 LED board 361 Mounting surface (same side surface)
37 LED light source 37A First LED light source 37B Second LED light source 38 Connector

Claims (3)

照明器具の器具本体に取り付けられるＬＥＤユニットであって、
矩形板状かつ長尺であり、表面に、前方に向けて光を発する複数のＬＥＤが長手方向に沿って配置され、前記表面の、前記ＬＥＤ基板の長手方向の両端部の位置に、前記複数のＬＥＤへの給電に用いられる第１、第２のコネクタが配置されるＬＥＤ基板と、
前記ＬＥＤ基板の後方に位置するＬＥＤユニット本体と、
箱状であり、前記ＬＥＤユニット本体の前方に位置し、前記ＬＥＤユニット本体と共に、前記ＬＥＤ基板を収容するケースを構成し、前記ＬＥＤ基板の前方に、レンズとしての透光性の前壁が設けられ、かつ、前記前壁において部分的に、光を拡散する光拡散部が設けられる投光部材と、
を有し、
前記光拡散部は、前記投光部材の前記前壁における長手方向の両端部の、前記第１、第２のコネクタおよび前記第１、第２のコネクタに最も近い位置のＬＥＤの前方である領域に設けられるＬＥＤユニット。 An LED unit that is attached to a fixture body of a lighting fixture,
A plurality of LEDs that are rectangular and long and emit light toward the front are arranged on the surface along the longitudinal direction, and the plurality of LEDs are positioned at both ends of the LED substrate in the longitudinal direction on the surface. An LED substrate on which first and second connectors used to supply power to the LED are disposed ;
An LED unit body located behind the LED substrate;
It is box-shaped, is located in front of the LED unit main body, constitutes a case for housing the LED substrate together with the LED unit main body, and is provided with a translucent front wall as a lens in front of the LED substrate. And a light projecting member provided with a light diffusion part for diffusing light partially on the front wall;
Have
The light diffusing portion is a region in front of the first and second connectors and the LED closest to the first and second connectors at both longitudinal ends of the front wall of the light projecting member. LED units provided. 請求項１に記載のＬＥＤユニットにおいて、
前記複数のＬＥＤは、第１の種類のＬＥＤ群と、前記第１の種類のＬＥＤ群とは発光色が異なる第２の種類のＬＥＤ群を有し、
前記第１の種類のＬＥＤ群に属するＬＥＤを第１のＬＥＤとし、前記第２の種類のＬＥＤ群に属するＬＥＤを第２のＬＥＤとする場合に、
前記第１のコネクタと前記第２のコネクタとの間において、前記第１、第２のＬＥＤが、前記ＬＥＤ基板の長手方向に沿って混在して一列に配置され、
前記一列における前記第１のＬＥＤは、第１の配線によって、前記第１、第２のコネクタ間に直列に接続され、
前記一列における前記第２のＬＥＤは、前記第１の配線とは電気的に独立である第２の配線で、前記第１、第２のコネクタ間に直列に接続され、
前記光拡散部は、前記投光部材の前記前壁における長手方向の両端部の、隣接して配置されている第１のＬＥＤおよび第２のＬＥＤの前方である領域に設けられるＬＥＤユニット。 The LED unit according to claim 1,
The plurality of LEDs include a first type of LED group and a second type of LED group having a different emission color from the first type of LED group,
When the LED belonging to the first type LED group is a first LED and the LED belonging to the second type LED group is a second LED ,
Between the first connector and the second connector, the first and second LEDs are mixed and arranged in a line along the longitudinal direction of the LED substrate,
The first LEDs in the row are connected in series between the first and second connectors by a first wiring,
The second LEDs in the row are connected in series between the first and second connectors with a second wiring that is electrically independent of the first wiring.
The light diffusing section, the longitudinal both ends in the front wall of the projection member, the first being located adjacent LED and the second LED unit that is provided in a region which is the front the LED. 請求項１または請求項２に記載のＬＥＤユニットが、前記器具本体に取り付けられてなる照明器具。 The lighting fixture by which the LED unit of Claim 1 or Claim 2 is attached to the said fixture main body .
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