JP6076444B2

JP6076444B2 - Light source device and lighting apparatus

Info

Publication number: JP6076444B2
Application number: JP2015227451A
Authority: JP
Inventors: 公史齋藤; 太一 ▲角▼野; 坂本　哲也; 哲也坂本
Original assignee: Mitsubishi Electric Corp; Mitsubishi Electric Lighting Corp
Current assignee: Mitsubishi Electric Corp; Mitsubishi Electric Lighting Corp
Priority date: 2015-11-20
Filing date: 2015-11-20
Publication date: 2017-02-08
Anticipated expiration: 2034-02-25
Also published as: JP2016042484A

Description

この発明は、ＬＥＤ基板を有する照明器具における、ＬＥＤ基板の固定構造に関する。 The present invention relates to an LED substrate fixing structure in a lighting fixture having an LED substrate.

従来から、ＬＥＤパッケージを直線状に配置した照明器具がある。例えば、特許文献１は、基板の表面に複数のＬＥＤが実装されている光源ユニットと、前記基板の裏面に当接する放熱部材と、前記基板の表面側に配置されている反射板と、前記光源ユニットと前記放熱部材を保持する器具本体と、前記基板を前記放熱部材に固定する固定部材とを有する照明器具である。この照明器具において、前記固定部材は、前記反射板と、前記器具本体に取り付けられる取付部と、前記反射板の非反射面側に設けられて前記器具本体との間で弾性力により前記基板を狭持する狭持部とが一体に構成されている。 Conventionally, there is a lighting fixture in which LED packages are arranged linearly. For example, Patent Document 1 discloses a light source unit in which a plurality of LEDs are mounted on the surface of a substrate, a heat dissipation member that contacts the back surface of the substrate, a reflector disposed on the surface side of the substrate, and the light source. It is a lighting fixture which has a unit main body holding the unit and the heat dissipation member, and a fixing member for fixing the substrate to the heat dissipation member. In this lighting fixture, the fixing member is provided on the non-reflective surface side of the reflection plate with the reflection plate, the attachment portion attached to the fixture main body, and the substrate by the elastic force between the fixture main body. A sandwiching portion for sandwiching is integrally formed.

特開２０１２−２２６９５７号公報JP 2012-226957 A

特許文献１では反射板により基板を狭持しているが、反射板は左右２部品から構成されており、片側ずつスライドさせて基板を固定しており、部品点数、作業工数共に複数となる為、コストの上昇や、作業効率の低下といった問題が生じる。 In Patent Document 1, the substrate is held by the reflector, but the reflector is composed of two parts on the left and right sides, and the substrate is fixed by sliding one side at a time. Problems such as an increase in cost and a decrease in work efficiency occur.

本発明は、部品点数の増加や作業効率の低下を抑えることができる照明装置の提供を目的とする。 An object of this invention is to provide the illuminating device which can suppress the increase in a number of parts, and the fall of work efficiency.

この発明の光源装置は、
光源と、
前記光源が配置されたフレームと、
前記フレームに係合しているカバーであって、
前記光源を覆う本体部、
前記フレームの前記光源が配置された面に沿って突き出た固定部、
を有するカバーと、
を備え、
前記カバーは、
前記固定部が前記光源に当接する。 The light source device of this invention is
A light source;
A frame in which the light source is arranged;
A cover engaging the frame,
A main body covering the light source,
A fixing portion protruding along a surface of the frame on which the light source is disposed,
A cover having
With
The cover is
The fixed portion contacts the light source.

本発明によれば、カバーをフレームに係合させるという一つの操作でカバーがフレームに装着されると共にＬＥＤ基板をフレームに固定することができるので、部品点数の削減や作業工数の削減を図ることができる。 According to the present invention, since the cover can be attached to the frame and the LED substrate can be fixed to the frame by one operation of engaging the cover with the frame, the number of parts and the number of work steps can be reduced. Can do.

実施の形態１の図で、照明器具１０００の斜視図。FIG. 3 is a perspective view of the lighting apparatus 1000 in the first embodiment. 実施の形態１の図で、照明器具１０００の分解斜視図。FIG. 3 is an exploded perspective view of the lighting apparatus 1000 in the first embodiment. 実施の形態１の図で、光源蓋部２４０を取り外した状態の光源部２００の斜視図。The perspective view of the light source part 200 of the state of Embodiment 1 in the state which removed the light source cover part 240. FIG. 図３のＡ−Ａ断面図。AA sectional drawing of FIG. 図４のＡ−Ａ断面図に相当する図であり、カバー２３０の装着を説明する図。FIG. 5 is a view corresponding to the AA cross-sectional view of FIG. 実施の形態２の図で、光２の反射を説明する図。FIG. 6 is a diagram for explaining reflection of light 2 in the second embodiment. 実施の形態３の図で、突起２３２−１−１を示す図。FIG. 9 is a diagram of the third embodiment, and shows a protrusion 232-1-1. 実施の形態３の図７のＡ部拡大図。The A section enlarged view of FIG. 7 of Embodiment 3. FIG.

実施の形態１．
実施の形態１では、本発明に係る照明器具の一例として、天井などの被取付部（以下、被取付部として天井を例に説明するが天井に限定されない）に取り付けられる、逆富士形の照明器具１０００について説明する。以下の説明において、便宜上、天井面側（被取付面側）を上面側とし、床面側（被取付面と反対側）を下面側として説明をおこなう。 Embodiment 1 FIG.
In the first embodiment, as an example of the lighting apparatus according to the present invention, an inverted Fuji type illumination that is attached to a mounted portion such as a ceiling (hereinafter, the ceiling is described as an example of the mounted portion but is not limited to the ceiling). The instrument 1000 will be described. In the following description, for convenience, the ceiling side (attached surface side) will be described as the upper surface side, and the floor surface (opposite side to the attached surface) will be described as the lower surface side.

（照明器具１０００の特徴）
実施の形態１の照明器具１０００の特徴は、後述（図４、図６、図７等）のように、カバー２３０をフレーム２２０に係合させることで、カバー２３０がフレーム２２０に装着すると共に、ＬＥＤ基板２１０をフレーム２２０に固定できる点にある。以下、図１〜図８を参照して実施の形態１の照明器具１０００を説明する。 (Characteristics of lighting fixture 1000)
As described below (FIGS. 4, 6, 7, etc.), the lighting fixture 1000 of the first embodiment is characterized in that the cover 230 is attached to the frame 220 by engaging the cover 230 with the frame 220. The LED board 210 can be fixed to the frame 220. Hereinafter, the lighting apparatus 1000 of Embodiment 1 will be described with reference to FIGS.

図１は、照明器具１０００の斜視図である。図２は図１に示す照明器具１０００の分解斜視図である。図３は、図２に示す光源部２００から光源蓋部２４０を取り外し斜視図である。 FIG. 1 is a perspective view of a lighting fixture 1000. FIG. 2 is an exploded perspective view of the lighting fixture 1000 shown in FIG. FIG. 3 is a perspective view in which the light source lid portion 240 is removed from the light source portion 200 shown in FIG.

（照明器具１０００の構成）
図１、図２のように、照明器具１０００（照明装置）は、天井（被取付部）に当接するように設置される本体部１００と、本体部１００に脱着可能に取り付けられる光源部２００から構成される。光源部２００は本体部１００に対向するように脱着可能に取り付けられる。光源部２００の両端は光源蓋部２４０で蓋がされている。 (Configuration of lighting apparatus 1000)
As shown in FIGS. 1 and 2, a lighting fixture 1000 (lighting device) includes a main body 100 that is installed so as to abut on a ceiling (attached portion), and a light source unit 200 that is detachably attached to the main body 100. Composed. The light source unit 200 is detachably attached so as to face the main body unit 100. Both ends of the light source unit 200 are covered with light source cover units 240.

図３は光源部２００の斜視図であり、図２の光源部２００から光源蓋部２４０取り外した斜視図である。図４は図３のＡ−Ａ断面である。図３、図４に示すように、光源部２００は、ＬＥＤ基板２１０（光源ユニット）、フレーム２２０、カバー２３０を備える。 FIG. 3 is a perspective view of the light source unit 200, and is a perspective view of the light source unit 200 of FIG. 4 is a cross-sectional view taken along the line AA in FIG. As shown in FIGS. 3 and 4, the light source unit 200 includes an LED substrate 210 (light source unit), a frame 220, and a cover 230.

（ＬＥＤ基板）
照明器具１０００（図１）は長手形状であり、ＬＥＤ基板２１０も同様に長手形状である。ＬＥＤ基板２１０には基板２１１の実装面２１１Ｊの長手方向に複数のＬＥＤ２１２が実装されている。 (LED board)
The lighting fixture 1000 (FIG. 1) has a longitudinal shape, and the LED substrate 210 has a longitudinal shape as well. A plurality of LEDs 212 are mounted on the LED substrate 210 in the longitudinal direction of the mounting surface 211J of the substrate 211.

（フレーム２２０）
フレーム２２０は、アルミや鉄などの金属で出来ており、ＬＥＤ２１２から出る熱が基板２１１を通してフレーム２２０（フレーム側平坦部２２１）に伝わり、放熱される。フレーム２２０はＬＥＤ基板２１０が固定される固定部材と、ＬＥＤ基板２１０の熱を放熱する放熱部材の機能をする。フレーム２２０は本体部１００とほぼ同じ長さの長手形状をなす（図２）。図４のように、フレーム２２０はＬＥＤ基板２１０の裏面（実装面２１１Ｊの裏側の面）に当接するフレーム側平坦部２２１を有する。フレーム２２０は断面が略「コの字」の形状をなし、長手の長方形形状であるフレーム側平坦部２２１の両側からそれぞれ起立して側面をなす側面板２２２を有する。側面板２２２の切立方向の端部は、フレーム２２０の長手方向にわたって、カール加工がされている（側面板カール部２２２Ｒ）。 (Frame 220)
The frame 220 is made of a metal such as aluminum or iron, and heat generated from the LED 212 is transmitted to the frame 220 (frame side flat portion 221) through the substrate 211 to be radiated. The frame 220 functions as a fixing member to which the LED substrate 210 is fixed and a heat radiating member that radiates heat from the LED substrate 210. The frame 220 has a longitudinal shape substantially the same length as the main body 100 (FIG. 2). As shown in FIG. 4, the frame 220 has a frame-side flat portion 221 that abuts against the back surface of the LED substrate 210 (the surface on the back side of the mounting surface 211J). The frame 220 has a side plate 222 that has a substantially “U” shape in cross section and that stands from both sides of a frame-side flat portion 221 that is a long rectangular shape. The end portion of the side plate 222 in the vertical direction is curled along the longitudinal direction of the frame 220 (side plate curl portion 222R).

（カバー２３０）
カバー２３０は、ポリカーボネートやアクリルなどの透明または光拡散材を含んだ透光性樹脂でできている。カバー２３０は、一体成形品である。図４のように、カバー２３０は、フレーム側平坦部２２１と接する平板状のカバー側平坦部２３２、ＬＥＤ基板２１０
を覆う透光性のカバー側本体部２３３、爪部２３４（カバー側フレーム係合部）を有する。カバー側本体部２３３は、カバー側平坦部２３２から立ち上がってＬＥＤ基板２１０を覆う。それぞれのカバー側平坦部２３２のＬＥＤ基板２１０寄りの端部には、カバー側基板固定部２３２−１が形成されている。またカバー側平坦部２３２の裏面からは長手方向にわたって（図３）、側板形状の爪部２３４が壁状に立設している。爪部先端部２３４Ｒは、側面板カール部２２２Ｒに適合する形状の曲げＲ形状となっている。 (Cover 230)
The cover 230 is made of a transparent or transparent resin such as polycarbonate or acrylic or containing a light diffusing material. The cover 230 is an integrally molded product. As shown in FIG. 4, the cover 230 includes a flat cover-side flat portion 232 that contacts the frame-side flat portion 221, and the LED substrate 210.
A translucent cover-side main body portion 233 and a claw portion 234 (cover-side frame engaging portion). The cover-side main body 233 rises from the cover-side flat portion 232 and covers the LED substrate 210. A cover side substrate fixing portion 232-1 is formed at an end portion of each cover side flat portion 232 near the LED substrate 210. In addition, a side plate-shaped claw portion 234 is erected in a wall shape from the back surface of the cover-side flat portion 232 in the longitudinal direction (FIG. 3). The claw portion tip portion 234R has a bent R shape that fits the side plate curl portion 222R.

（カバー２３０とフレーム２２０の係合）
図５を参照してカバー２３０とフレーム２２０の係合を説明する。カバー２３０をフレーム２２０に係合させる際には、それぞれのカバー側基板固定部２３２−１によって、ＬＥＤ基板２１０の長手方向の端部を押さえた状態で、作業者がカバー２３０の爪部２３４を破線のように弾性変形させて広げて、カバー２３０の爪部２３４をフレーム２２０の側面板２２２に係合させる。つまり図４に示す寸法Ｌ１はカバー２３０側における寸法Ｌ１、フレーム２２０側における寸法Ｌ１が考慮され、また寸法Ｌ２はＬＥＤ基板２１０の板厚が考慮されてカバー側基板固定部２３２−１のカバー側平坦部２３２に対する段差寸法（カバー２３０側の寸法Ｌ１）が決められる。これらの寸法関係によってＬＥＤ基板２１０は、カバー側基板固定部２３２−１により、フレーム２２０（フレーム側平坦部２２１）に押さえつけられて固定されると共に、ＬＥＤ２１２から出た熱を効率よくフレーム２２０に伝えることが可能となる。なおＬＥＤ基板２１０はカバー２３０だけで固定してもよいが、ＬＥＤ基板２１０とフレーム２２０（フレーム側平坦部２２１）との間にシリコンなどの熱伝導の良い接着剤を塗布して接着し、カバー２３０で固定してもよい。 (Engagement of cover 230 and frame 220)
The engagement between the cover 230 and the frame 220 will be described with reference to FIG. When the cover 230 is engaged with the frame 220, the operator holds the claw portion 234 of the cover 230 while holding the end of the LED substrate 210 in the longitudinal direction by the respective cover side substrate fixing portions 232-1. The claws 234 of the cover 230 are engaged with the side plates 222 of the frame 220 by elastically deforming and spreading as shown by broken lines. That is, the dimension L1 shown in FIG. 4 considers the dimension L1 on the cover 230 side and the dimension L1 on the frame 220 side, and the dimension L2 considers the plate thickness of the LED board 210 and covers the cover side substrate fixing portion 232-1 on the cover side. A step size (dimension L1 on the cover 230 side) with respect to the flat portion 232 is determined. Due to these dimensional relationships, the LED substrate 210 is pressed against and fixed to the frame 220 (frame-side flat portion 221) by the cover-side substrate fixing portion 232-1 and efficiently transmits the heat emitted from the LED 212 to the frame 220. It becomes possible. The LED substrate 210 may be fixed only by the cover 230, but an adhesive having a good thermal conductivity such as silicon is applied and adhered between the LED substrate 210 and the frame 220 (frame side flat portion 221). It may be fixed at 230.

以上の実施の形態１の照明器具１０００は、カバー２３０の一部がＬＥＤ基板を押さえる構成であることが特徴である。カバー２３０は一体成形品であり、放熱部材であるフレーム２２０にはまり込むことで固定される。フレーム２２０に固定される再に、カバー２３０の一部（爪部）がＬＥＤ基板を固定する機能を有しており、カバー２３０をフレーム（放熱部材）にはめ込むという一つの操作でＬＥＤ基板２１０を固定することができる。よって、部品点数の削減や、作業工数の削減などの効果がある。 The lighting fixture 1000 of the above Embodiment 1 is characterized in that a part of the cover 230 is configured to hold the LED substrate. The cover 230 is an integrally molded product and is fixed by being fitted into the frame 220 which is a heat radiating member. A part (claw part) of the cover 230 has a function of fixing the LED substrate again after being fixed to the frame 220, and the LED substrate 210 is attached by one operation of fitting the cover 230 into the frame (heat radiating member). Can be fixed. Therefore, there are effects such as a reduction in the number of parts and a reduction in work man-hours.

実施の形態２．
図６は、本実施の形態２におけるＡ−Ａ断面図（実施の形態１の図３のＡ−Ａ断面）を示す。図６に示すように、ＬＥＤ２１２から出た光はカバー側本体部２３３を通して発光する光１と、カバー内面（Ｐ点）で反射する光２がある。カバー側本体部２３３の内面（Ｐ点）で反射した光２は、カバー内側のカバー側平坦部２３２（カバー側基板固定部２３２−１を含む）（Ｑ点）で再度反射してカバー側本体部２３３から発光される。ここで、カバー２３０のうち、内部反射面となるカバー側平坦部２３２を、カバー側本体部２３３よりも反射率の大きい高反射材料（カバー側平坦部２３２Ａ、カバー側基板固定部２３２−１Ａ）にすることにより、カバー２３０からの発光効率を上げることができる。高反射材料はカバー側本体部２３３の透光材料と同質の材料、例えばポリカーボネートであり、２種類の材料を一体成形で押出すことができる。また、基板１１の表面に高反射材料を塗布すれば、更に光学効率を上げることができる。 Embodiment 2. FIG.
FIG. 6 is a cross-sectional view taken along the line AA in the second embodiment (the AA cross section in FIG. 3 of the first embodiment). As shown in FIG. 6, light emitted from the LED 212 includes light 1 emitted through the cover-side main body 233 and light 2 reflected from the cover inner surface (point P). The light 2 reflected by the inner surface (point P) of the cover-side main body 233 is reflected again by the cover-side flat portion 232 (including the cover-side substrate fixing portion 232-1) (point Q) inside the cover, and the cover-side main body. Light is emitted from the unit 233. Here, in the cover 230, the cover-side flat portion 232 serving as an internal reflection surface is made of a highly reflective material (cover-side flat portion 232A, cover-side substrate fixing portion 232-1A) having a higher reflectance than the cover-side main body portion 233. Thus, the light emission efficiency from the cover 230 can be increased. The highly reflective material is the same material as the light-transmitting material of the cover-side main body 233, for example, polycarbonate, and two kinds of materials can be extruded by integral molding. Further, if a highly reflective material is applied to the surface of the substrate 11, the optical efficiency can be further increased.

実施の形態２の照明器具は、カバー２３０が２種類の樹脂材料で一体成形されており、発光部分（カバー側本体部２３３）は光透過性材料からなり、反射部分（カバー側基板固定部２３２−１を含むカバー側平坦部２３２）には反射率９０％以上の高反射材料を使用する。これにより、光の取り出し効率を向上させる効果がある。 In the lighting apparatus of Embodiment 2, the cover 230 is integrally formed of two types of resin materials, the light emitting portion (cover side main body portion 233) is made of a light transmissive material, and the reflecting portion (cover side substrate fixing portion 232). For the cover side flat portion 232 including -1, a highly reflective material having a reflectance of 90% or more is used. This has the effect of improving the light extraction efficiency.

実施の形態３．
図７、図８（Ａ部拡大図）は、実施の形態３のカバー側基板固定部２３２−１を示すＡ−Ａ断面図（実施の形態１の図３のＡ−Ａ断面）である。 Embodiment 3 FIG.
7 and 8 (enlarged view of part A) are AA cross-sectional views (cross-section AA in FIG. 3 of the first embodiment) showing the cover-side substrate fixing part 232-1 of the third embodiment.

図７、図８に示すように、カバー側基板固定部２３２−１のうち基板２１１の実装面２１１Ｊと接触する面（箇所）に突起２３２−１−１を設けた。この突起２３２−１−１により、基板２１１をフレーム２２０（フレーム側平坦部２２１）に確実に押さえ付けることができる。突起２３２−１−１は、図３において、複数のＬＥＤに沿う長手形状である。
なお、実施の形態１〜３は、全てまたは部分的に組み合わせてもよい。 As shown in FIGS. 7 and 8, the protrusion 232-1-1 is provided on the surface (location) of the cover-side substrate fixing part 232-1 that contacts the mounting surface 211 J of the substrate 211. By this protrusion 232-1-1, the substrate 211 can be reliably pressed against the frame 220 (frame side flat portion 221). The protrusion 232-1-1 has a longitudinal shape along a plurality of LEDs in FIG. 3.
The first to third embodiments may be combined in whole or in part.

以上の実施の形態では以下の照明器具を説明した。
複数のＬＥＤが配置されたＬＥＤ基板と、
前記ＬＥＤ基板の裏面に当接する平坦部を有するフレームと、
一体成形されたカバーであって、前記ＬＥＤ基板を覆う透光性のカバー側本体部と、カバー側基板固定部と、カバー側フレーム係合部とを有するカバーと
を備え、
前記カバーは、
前記カバー側基板固定部が前記ＬＥＤ基板のＬＥＤ実装面と接した状態で前記カバー側フレーム係合部が前記フレームと係合することにより、前記カバーは前記フレームに装着され、かつ、前記カバー側基板固定部が前記ＬＥＤ基板を前記フレームの前記平坦部に固定することを特徴とする照明器具。 The following lighting fixtures have been described in the above embodiments.
An LED substrate on which a plurality of LEDs are arranged;
A frame having a flat portion in contact with the back surface of the LED substrate;
A cover that is integrally formed and includes a light-transmitting cover-side main body that covers the LED substrate, a cover-side substrate fixing portion, and a cover-side frame engaging portion;
The cover is
The cover is attached to the frame by the cover side frame engaging portion engaging with the frame in a state where the cover side substrate fixing portion is in contact with the LED mounting surface of the LED substrate, and the cover side A board fixture fixes the LED board to the flat part of the frame.

以上の実施の形態では以下の照明器具を説明した。
前記カバーは、
前記フレームの前記平坦部と接する平板状のカバー側平坦部を有し、
前記カバー側本体部は、
前記カバー側平坦部から立ち上がって前記ＬＥＤ基板を覆うと共に、
前記カバー側平坦部は、
前記カバー側本体部よりも光の反射率が高いことを特徴とする照明器具。 The following lighting fixtures have been described in the above embodiments.
The cover is
A flat cover-side flat portion in contact with the flat portion of the frame;
The cover side main body is
While standing up from the cover side flat part and covering the LED substrate,
The cover side flat portion is
The lighting fixture characterized by having a light reflectance higher than that of the cover-side main body.

以上の実施の形態では以下の照明器具を説明した。
前記カバー側基板固定部は、
前記ＬＥＤ基板の前記実装面と接する箇所に突起が形成されたことを特徴とする照明器具。 The following lighting fixtures have been described in the above embodiments.
The cover side substrate fixing part is
A lighting fixture, wherein a protrusion is formed at a location in contact with the mounting surface of the LED substrate.

１００本体部、２００光源部、２１０ＬＥＤ基板、２１１基板、２１１Ｊ実装面、２１２ＬＥＤ、２２０フレーム、２２１フレーム側平坦部、２２２側面板、２２２Ｒ側面板カール部、２３０カバー、２３２カバー側平坦部、２３２−１，２３２−１Ａカバー側基板固定部、２３２−１−１突起、２３３カバー側本体部、２３４爪部、２３４Ｒ爪部先端部、２４０光源蓋部、１０００照明器具。 100 Main body part, 200 Light source part, 210 LED substrate, 211 substrate, 211J mounting surface, 212 LED, 220 frame, 221 frame side flat part, 222 side plate, 222R side plate curl part, 230 cover, 232 cover side flat part, 232-1, 232-1A Cover side substrate fixing portion, 232-1-1 protrusion, 233 cover side main body portion, 234 claw portion, 234R claw tip end portion, 240 light source lid portion, 1000 lighting fixture.

Claims

A light source;
A frame in which the light source is arranged;
A cover engaging the frame,
A main body covering the light source,
A fixing portion protruding along a surface of the frame on which the light source is disposed,
A cover having
With
The cover is
The fixing portion is abutted to said light source,
The frame is
Having a back surface with respect to the surface on which the light source is disposed;
The back side is
A light source device arranged without being blocked by the cover .

The light source is
Having a substrate on which the LED is mounted;
The fixing part is
The light source device according to claim 1, wherein the light source device is in contact with the substrate.

The fixing part is
The light source device according to claim 2, wherein the light source device is in contact with the substrate on both sides of the LED.

The fixing part is
The light source device according to claim 1, wherein the light source is pressed against the frame.

In a lighting fixture comprising a lighting fixture main body,
A light source device according to any one of claims 1 to 4 , comprising:
The lighting apparatus body, luminaire that the light source device is attached.