JP2016012545A

JP2016012545A - Lighting device

Info

Publication number: JP2016012545A
Application number: JP2014134995A
Authority: JP
Inventors: 朋広太田; Tomohiro Ota
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2014-06-30
Filing date: 2014-06-30
Publication date: 2016-01-21
Anticipated expiration: 2034-06-30
Also published as: JP6358538B2

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device facilitating connection of an electric cable.SOLUTION: A holder 6 has an electric cable insertion port 600 into which the electric cable is inserted. On the holder 6, a terminal plate 7 electrically connected to the light-emitting element 10 is held while having an electric cable contact part 71 which comes in contact with the electric cable inserted into the electric cable insertion port 600 to conduct. The direction of the opening of the electric cable insertion port 600 corresponds to a direction apart from a mounting member 3 to which the holder 6 is fixed. Connection of the electric cable is facilitated compared with the case where the direction of the opening of the electric cable insertion port 600 is parallel to the mounting member 3.

Description

本発明は、照明装置に関し、より具体的には、基板に実装された発光素子を光源とする照明装置に関する。 The present invention relates to a lighting device, and more specifically to a lighting device using a light emitting element mounted on a substrate as a light source.

従来、発光素子が実装された基板を備える照明装置が提供されている（例えば、特許文献１参照）。 Conventionally, an illuminating device including a substrate on which a light emitting element is mounted has been provided (for example, see Patent Document 1).

基板には絶縁材料からなるホルダが取り付けられ、ホルダには導電材料からなり発光素子に電気的に接続された端子板が保持される。また、ホルダには、電線が挿入される電線挿入口が設けられ、端子板は、電線挿入口から挿入された電線に接触導通する。すなわち、電線挿入口から挿入された電線は、端子板を介して発光素子に電気的に接続される。 A holder made of an insulating material is attached to the substrate, and a terminal plate made of a conductive material and electrically connected to the light emitting element is held on the holder. Further, the holder is provided with an electric wire insertion port into which an electric wire is inserted, and the terminal plate is brought into contact with the electric wire inserted from the electric wire insertion port. That is, the electric wire inserted from the electric wire insertion port is electrically connected to the light emitting element via the terminal plate.

特開２０１３−９３１９２号公報JP 2013-93192 A

上記従来の照明装置において、電線挿入口は、ホルダが固定される面に対して平行な方向に開口していた。従って、例えばホルダが凹部の内底面に固定されているような状態では、電線挿入口への電線の挿入が比較的に困難となっていた。 In the conventional lighting device, the wire insertion opening is opened in a direction parallel to the surface to which the holder is fixed. Therefore, for example, in a state where the holder is fixed to the inner bottom surface of the recess, it is relatively difficult to insert the electric wire into the electric wire insertion port.

本発明は、上記事由に鑑みて為されたものであり、その目的は、電線挿入口への電線の挿入がより容易な照明装置を提供することにある。 This invention is made | formed in view of the said reason, The objective is to provide the illuminating device whose insertion of the electric wire to an electric wire insertion port is easier.

本発明に係る照明装置は、発光素子が実装された基板と、前記基板に対して熱的に接続される放熱部材と、前記基板を囲み前記放熱部材に対して固定される取付部材と、前記取付部材に固定されて前記取付部材からの前記基板の脱落を阻止するホルダとを備え、前記ホルダは、電線が挿入される電線挿入口を有し、前記ホルダには、前記電線挿入口に挿入された前記電線に接触導通する電線接触部を有して前記発光素子に電気的に接続される端子板が保持されていて、前記電線挿入口は、前記取付部材から離れる向きに開口していることを特徴とする。 An illumination device according to the present invention includes a substrate on which a light emitting element is mounted, a heat dissipation member thermally connected to the substrate, an attachment member that surrounds the substrate and is fixed to the heat dissipation member, A holder that is fixed to the mounting member and prevents the substrate from falling off from the mounting member, the holder having an electric wire insertion port into which an electric wire is inserted, and the holder is inserted into the electric wire insertion port A terminal plate electrically connected to the light emitting element having a wire contact portion that is in contact with and conducted to the wire, and the wire insertion opening is open in a direction away from the mounting member. It is characterized by that.

本発明によれば、電線挿入口への電線の挿入がより容易となる。 According to the present invention, the insertion of the electric wire into the electric wire insertion port becomes easier.

本発明の実施形態に係る照明装置を示す分解斜視図である。It is a disassembled perspective view which shows the illuminating device which concerns on embodiment of this invention. 上記の照明装置を示す断面図である。It is sectional drawing which shows said illuminating device. 上記の照明装置を示す斜視図である。It is a perspective view which shows said illuminating device. 上記の照明装置において反射板と透光カバーとが取り外された状態を示す斜視図である。It is a perspective view which shows the state from which the reflecting plate and the translucent cover were removed in said illuminating device. 上記の照明装置において反射板と透光カバーと放熱部材とが取り外された状態を示す斜視図である。It is a perspective view which shows the state from which the reflecting plate, the translucent cover, and the heat radiating member were removed in said illuminating device. 上記の照明装置におけるホルダと端子板とを示す斜視図である。It is a perspective view which shows the holder and terminal plate in said illuminating device. 上記の照明装置において反射板と透光カバーと放熱部材とが取り外された状態を示す断面図である。It is sectional drawing which shows the state from which the reflecting plate, the translucent cover, and the heat radiating member were removed in said illuminating device. 上記の照明装置の別の例を示す斜視図である。It is a perspective view which shows another example of said illuminating device.

本発明に係る照明装置は、図１に示すように、発光素子１０が実装された基板１１と、基板１１に対して熱的に接続される放熱部材２とを備える。また、上記の照明装置は、基板１１を囲み放熱部材２に対して固定される取付部材３と、取付部材３に固定されて取付部材３からの基板１１の脱落を阻止するホルダ６とを備える。ホルダ６は、電線８２が挿入される電線挿入口６００を有し、ホルダ６には、電線挿入口６００に挿入された電線８２に接触導通する電線接触部７１（図７参照）を有して発光素子１０に電気的に接続される端子板７が保持されている。電線挿入口６００は、取付部材３から離れる向きに開口している。 As shown in FIG. 1, the lighting device according to the present invention includes a substrate 11 on which the light emitting element 10 is mounted, and a heat radiating member 2 that is thermally connected to the substrate 11. The lighting device includes an attachment member 3 that surrounds the substrate 11 and is fixed to the heat radiating member 2, and a holder 6 that is fixed to the attachment member 3 and prevents the substrate 11 from falling off the attachment member 3. . The holder 6 has an electric wire insertion port 600 into which the electric wire 82 is inserted, and the holder 6 has an electric wire contact portion 71 (see FIG. 7) that is in contact with the electric wire 82 inserted into the electric wire insertion port 600. A terminal plate 7 electrically connected to the light emitting element 10 is held. The electric wire insertion port 600 is opened in a direction away from the attachment member 3.

上記の照明装置において、取付部材３は、ホルダ６を位置決めするホルダ位置決め部３６を有することが望ましい。 In the illuminating device described above, the attachment member 3 preferably has a holder positioning portion 36 for positioning the holder 6.

上記の照明装置において、ホルダ６は絶縁材料からなり、ねじ止め固定用のねじ８１が挿通されるねじ挿通孔６１と、ねじ挿通孔６１に挿通されたねじ８１の頭部と電線挿入口６００との間に位置する仕切り部６３とを有することが望ましい。 In the above lighting device, the holder 6 is made of an insulating material, the screw insertion hole 61 through which the screw 81 for fixing with screws is inserted, the head of the screw 81 inserted through the screw insertion hole 61, and the electric wire insertion port 600. It is desirable to have the partition part 63 located between these.

上記の照明装置において、取付部材３と放熱部材２とには、それぞれ、電線８２が挿通される電線挿通孔２１３，３１３が設けられていてもよい。 In the illumination device described above, the attachment member 3 and the heat dissipation member 2 may be provided with wire insertion holes 213 and 313 through which the wires 82 are inserted, respectively.

上記の照明装置において、取付部材３に固定されて基板１１を囲む筒形状の反射板４を備え、反射板４には、電線８２が挿通される電線挿通孔４４１（図８参照）が設けられていてもよい。 The lighting device includes a cylindrical reflection plate 4 that is fixed to the mounting member 3 and surrounds the substrate 11, and the reflection plate 4 is provided with a wire insertion hole 441 (see FIG. 8) through which the electric wire 82 is inserted. It may be.

以下、本発明を実施するための最良の形態について、図面を参照しながら説明する。 The best mode for carrying out the present invention will be described below with reference to the drawings.

本実施形態の照明装置は、図１及び図２に示すように、発光素子１０が実装された基板１１と、基板１１に対して熱的に接続される放熱部材２とを備える。 As shown in FIGS. 1 and 2, the lighting device of the present embodiment includes a substrate 11 on which the light emitting element 10 is mounted, and a heat radiating member 2 that is thermally connected to the substrate 11.

以下、上下方向は図１を基準として説明する。なお、上記方向は説明の便宜上定義するものであって、実際の使用状態での方向とは必ずしも一致しない。 Hereinafter, the vertical direction will be described with reference to FIG. The above direction is defined for convenience of explanation, and does not necessarily match the direction in the actual use state.

基板１１は、厚さ方向を上下方向に向けた矩形平板である。発光素子１０は例えば発光ダイオードであって、基板１１において上方に向けられた実装面の中央部に実装されている。発光素子１０の放熱のため、基板１１の材料としてはなるべく熱伝導率が高い材料が用いられることが望ましい。具体的には、基板１１としては例えばセラミック基板や金属ベース基板が用いられる。また、基板１１の実装面の互いに対角に位置する２箇所にはそれぞれ発光素子１０の１個ずつの電極に電気的に接続された端子１２が設けられている。すなわち、上記の端子１２間に電圧を印加されることで、発光素子１０は通電されて発光する。 The substrate 11 is a rectangular flat plate whose thickness direction is directed in the vertical direction. The light emitting element 10 is, for example, a light emitting diode, and is mounted on the central portion of the mounting surface facing upward on the substrate 11. In order to dissipate heat from the light emitting element 10, it is desirable to use a material having as high a thermal conductivity as possible for the substrate 11. Specifically, as the substrate 11, for example, a ceramic substrate or a metal base substrate is used. In addition, terminals 12 electrically connected to the respective electrodes of the light emitting element 10 are provided at two positions on the mounting surface of the substrate 11 that are diagonal to each other. That is, when a voltage is applied between the terminals 12, the light emitting element 10 is energized and emits light.

放熱部材２は、例えばアルミダイカストからなり、厚さ方向を上下方向に向けた円板形状の本体部２１と、厚さ方向を互いに平行として本体部２１の下面からそれぞれ突出する複数個（図２では８個）の放熱フィン２２とを有する。基板１１は、非実装面（下面）を、放熱部材２の本体部２１の上面の中央部に対して熱的に接続されている。熱的な接続は、密着により達成されてもよいし、シリコーングリス（いわゆる放熱グリス）等の適宜の媒体を介して達成されてもよい。 The heat dissipating member 2 is made of, for example, aluminum die casting, and has a disk-shaped main body portion 21 whose thickness direction is directed in the vertical direction and a plurality of protrusions that protrude from the lower surface of the main body portion 21 with the thickness directions parallel to each other (FIG. 2). 8) heat radiation fins 22. The non-mounting surface (lower surface) of the substrate 11 is thermally connected to the central portion of the upper surface of the main body portion 21 of the heat dissipation member 2. The thermal connection may be achieved by close contact, or may be achieved through an appropriate medium such as silicone grease (so-called heat radiation grease).

また、本実施形態は、図３に示すように、放熱部材２に対して固定される取付部材３と、取付部材３に対して固定され発光素子１０の光を配光する反射板４と、透光性を有する材料からなり反射板４に固定される透光カバー５とを備える。反射板４は全体として軸方向を上下方向に向けた筒形状であって、一方（下側）の開口を取付部材３の本体部３１によって閉塞され、他方（上側）の開口を透光カバー５によって閉塞される。 In addition, as shown in FIG. 3, the present embodiment includes an attachment member 3 that is fixed to the heat radiating member 2, a reflector 4 that is fixed to the attachment member 3 and distributes light from the light emitting element 10, And a translucent cover 5 made of a translucent material and fixed to the reflecting plate 4. The reflecting plate 4 has a cylindrical shape with the axial direction directed upward and downward as a whole, and one (lower side) opening is closed by the main body 31 of the mounting member 3, and the other (upper side) opening is closed by the translucent cover 5. It is blocked by.

取付部材３は、例えばポリブチレンテレフタラート（ＰＢＴ：Ｐｏｌｙｂｕｔｙｌｅｎｅｔｅｒｅｐｈｔｈａｌａｔｅ）のような樹脂からなり、厚さ方向を上下方向に向けた円板形状の本体部３１を備える。本体部３１の上面には、それぞれ本体部３１と同心であって外径が本体部３１の外径よりも小さい円筒形状の一部を構成する複数個の円弧形状の周壁部３２が設けられている。 The attachment member 3 is made of a resin such as polybutylene terephthalate (PBT), for example, and includes a disc-shaped main body portion 31 whose thickness direction is directed vertically. On the upper surface of the main body 31, a plurality of arc-shaped peripheral wall portions 32 that are concentric with the main body 31 and form a part of a cylindrical shape whose outer diameter is smaller than the outer diameter of the main body 31 are provided. Yes.

反射板４は、軸方向を上下方向に向けた筒形状であって発光素子１０を囲む内筒部４１と、内筒部４１と同軸の円環形状であって内周端を内筒部４１の上端に連結された連結部４２と、連結部４２の外周端から上方に突出する円筒形状の先筒部４３とを有する。内筒部４１の内周面と、連結部４２の上面と、先筒部４３の内周面とは、発光素子１０の光に対する反射率を高めるように例えば白色に塗装されている。また、発光素子１０の光を上方へ配光するために、内筒部４１の内周面は上方に向かって内径を大きくするように傾斜し、連結部４２の上面は外周に向かって上方へ傾斜している。さらに、反射板４は、内筒部４１と同心の円筒形状であって上端を連結部４２の下面に連結され内径が周壁部３２の外径よりも僅かに大きく周壁部３２を囲む外筒部４４を有する。外筒部４４において、径方向の両端部には、それぞれ径方向に貫通する貫通孔である結合穴４４０が設けられている。また、取付部材３において、本体部３１の径方向の両端付近には、それぞれ、上端部を本体部３１に対して径方向に変位させるように弾性変形可能な結合片３３が設けられている。さらに、各結合片３３の先端部（上端部）には、径方向の外向きに突出する結合爪３４が設けられており、各結合穴４４０にそれぞれ結合爪３４が係入することで反射板４と取付部材３とは互いに結合する。 The reflecting plate 4 has a cylindrical shape with the axial direction oriented in the vertical direction and an inner cylindrical portion 41 surrounding the light emitting element 10, and an annular shape coaxial with the inner cylindrical portion 41, and an inner peripheral end of the inner cylindrical portion 41. A connecting portion 42 connected to the upper end of the connecting portion 42, and a cylindrical tip tube portion 43 protruding upward from the outer peripheral end of the connecting portion 42. The inner peripheral surface of the inner cylinder part 41, the upper surface of the connecting part 42, and the inner peripheral surface of the front cylinder part 43 are painted white, for example, so as to increase the reflectance of the light emitting element 10 with respect to light. Further, in order to distribute the light of the light emitting element 10 upward, the inner peripheral surface of the inner cylinder part 41 is inclined so as to increase the inner diameter upward, and the upper surface of the connecting part 42 is upward upward toward the outer periphery. Inclined. Further, the reflecting plate 4 has a cylindrical shape concentric with the inner cylindrical portion 41 and has an upper end connected to the lower surface of the connecting portion 42 and an inner diameter that is slightly larger than the outer diameter of the peripheral wall portion 32 and surrounds the peripheral wall portion 32. 44. In the outer cylinder portion 44, both end portions in the radial direction are provided with coupling holes 440 which are through holes penetrating in the radial direction. Further, in the attachment member 3, coupling pieces 33 that can be elastically deformed so as to displace the upper end portion in the radial direction with respect to the main body portion 31 are provided near both ends in the radial direction of the main body portion 31. Further, a coupling claw 34 protruding outward in the radial direction is provided at the distal end portion (upper end portion) of each coupling piece 33, and the coupling claw 34 engages with each coupling hole 440, thereby reflecting the reflector. 4 and the attachment member 3 are coupled to each other.

透光カバー５は、例えばアクリル樹脂やポリカーボネート樹脂のように透光性を有する（つまり発光素子１０の光を透過させる）材料からなり、全体として反射板４の先筒部４３と同等の外径を有する円板形状となっている。透光カバー５は図１〜図３のようにフレネルレンズ５０と一体化されていてもよいし、１個乃至複数個の球面レンズと一体化されていてもよいし、レンズ状の構造を有さない平板状であってもよい。また、透光カバー５は、粒子状物質の拡散や粗面化等の適宜の加工により、発光素子１０の光を拡散させるように構成されていてもよい。さらに、透光カバー５は、光学フィルタとしての機能を付与されていてもよい。具体的には、透光カバー５は、光の波長を変換する蛍光体や、特定の波長域の光（例えば紫外光）に対する吸収率が比較的に高い物質を含んでいてもよい。 The translucent cover 5 is made of a material having translucency (that is, transmitting the light of the light emitting element 10) such as acrylic resin or polycarbonate resin, and has an outer diameter equivalent to that of the front tube portion 43 of the reflector 4 as a whole. It becomes the disk shape which has. The translucent cover 5 may be integrated with the Fresnel lens 50 as shown in FIGS. 1 to 3, may be integrated with one or more spherical lenses, or has a lens-like structure. It may be a flat plate. The translucent cover 5 may be configured to diffuse the light of the light emitting element 10 by appropriate processing such as diffusion of the particulate matter or roughening. Furthermore, the translucent cover 5 may be provided with a function as an optical filter. Specifically, the translucent cover 5 may include a phosphor that converts the wavelength of light, or a substance that has a relatively high absorption rate for light in a specific wavelength range (for example, ultraviolet light).

透光カバー５の径方向の両端には、それぞれ、結合凹部５１が設けられている。また、反射板４において、先筒部４３の上端の径方向の両端部には、それぞれ、上端部を先筒部４３に対して径方向に変位させるように弾性変形可能な結合片４５が設けられている。さらに、各結合片４５の先端部（上端部）には、径方向の内向きに突出する結合爪４６が設けられており、各結合凹部５１にそれぞれ結合爪４６が係入することで透光カバー５と反射板４とは互いに結合する。 At both ends in the radial direction of the translucent cover 5, coupling recesses 51 are provided, respectively. Further, in the reflecting plate 4, coupling pieces 45 that can be elastically deformed so as to displace the upper end portion in the radial direction with respect to the front tube portion 43 are provided at both ends of the upper end of the front tube portion 43 in the radial direction. It has been. Further, a coupling claw 46 protruding inward in the radial direction is provided at the distal end portion (upper end portion) of each coupling piece 45, and the coupling claw 46 is engaged with each coupling recess 51 to transmit light. The cover 5 and the reflection plate 4 are coupled to each other.

また、取付部材３の本体部３１の中央部には、上下方向に貫通する貫通孔であって基板１１よりも僅かに大きい寸法形状を有する位置決め孔３１０が設けられている。基板１１は、位置決め孔３１０に嵌め込まれることで、位置決め孔３１０の内周面により取付部材３に対して位置決めされる。位置決め孔３１０の下側の開口は放熱部材２の本体部２１によって閉塞されるから、基板１１が取付部材３の下方に脱落することはない。 In addition, a positioning hole 310 that is a through-hole penetrating in the vertical direction and having a slightly larger size and shape than the substrate 11 is provided in the central portion of the main body 31 of the mounting member 3. The substrate 11 is positioned with respect to the attachment member 3 by the inner peripheral surface of the positioning hole 310 by being fitted into the positioning hole 310. Since the opening on the lower side of the positioning hole 310 is closed by the main body portion 21 of the heat radiating member 2, the substrate 11 does not drop below the attachment member 3.

さらに、本実施形態は、位置決め孔３１０の上方への基板１１の脱落を阻止する２個のホルダ６を備える。各ホルダ６はそれぞれ例えば樹脂のような絶縁材料からなる。図４に示すように、各ホルダ６は、それぞれ頭部を上方に向けた１本ずつのねじ８１により、取付部材３とともに放熱部材２にねじ止め固定される。具体的には、各ホルダ６と、取付部材３の本体部３１において位置決め孔３１０を挟む２箇所とには、それぞれねじ８１が挿通されるねじ挿通孔６１，３１１が設けられている。また、放熱部材２の本体部２１の上面には、上記のねじ８１がねじ込まれるねじ穴２１１が開口している。さらに、図５に示すように、取付部材３の下面には、それぞれ軸方向を上下方向に向けた円柱形状の位置決め部としての位置決め凸部３５が複数個設けられている。また、放熱部材２の本体部２１の上面には、それぞれ上記の位置決め凸部３５が１個ずつ挿入される（つまり凹凸係合する）位置決め部としての位置決め凹部２１２が複数個設けられている。すなわち、各位置決め凸部３５がそれぞれ位置決め凹部２１２に挿入されることで、取付部材３は放熱部材２に対して位置決めされる。なお、図１や図５では位置決め凸部３５及び位置決め凹部２１２はそれぞれ長方形の頂点の配置で４個設けられているが、位置決め凸部３５及び位置決め凹部２１２の個数及び配置は上記に限られない。さらに、位置決め凸部３５の形状も円柱形状に限られず、位置決め凸部３５と位置決め凹部２１２とは相互に凹凸係合して位置決めが達成される形状であればよい。また、凹凸の関係も上記に限られず、例えば放熱部材２の凸部が取付部材３の凹部に係入することで位置決めが達成される構成としてもよい。さらに、取付部材３には、本体部３１の上面から突出する凸部からなり上方から見てホルダ６を囲むことでホルダ６を位置決めする（つまり取付部材３の上面に沿ったホルダ６の回転や平行移動を禁止する）ホルダ位置決め部３６が設けられている。このホルダ位置決め部３６により、取付部材３に対するホルダ６のがたつきが抑えられる。また、各ホルダ６は、それぞれ、ねじ８１が締め付けられた際に基板１１の上面に押し付けられる押さえ部６２を２個ずつ有しており、押さえ部６２が位置決め孔３１０の内周面に当たることによっても、各ホルダ６は取付部材３に対して位置決めされる。各押さえ部６２はそれぞれ基板１１の辺に沿うように細長い形状とされている。また、各ホルダ６において、２個の押さえ部６２の長さ方向は互いに直交しており、各ホルダ６はそれぞれ全体としてＬ字形状となっている。なお、各ホルダ６は、基板１１の上側に位置する押さえ部６２を少なくとも１個有していれば上記のようなＬ字形状に限られず、例えば押さえ部６２を１個のみ有するＩ字形状であってもよい。 Furthermore, the present embodiment includes two holders 6 that prevent the substrate 11 from dropping above the positioning holes 310. Each holder 6 is made of an insulating material such as resin. As shown in FIG. 4, each holder 6 is screwed and fixed to the heat radiating member 2 together with the mounting member 3 by one screw 81 with the head facing upward. Specifically, screw insertion holes 61 and 311 through which screws 81 are respectively inserted are provided in the respective holders 6 and at two positions sandwiching the positioning hole 310 in the main body 31 of the mounting member 3. A screw hole 211 into which the screw 81 is screwed is opened on the upper surface of the main body 21 of the heat radiating member 2. Further, as shown in FIG. 5, a plurality of positioning convex portions 35 are provided on the lower surface of the attachment member 3 as cylindrical positioning portions whose axial directions are directed in the vertical direction. A plurality of positioning recesses 212 are provided on the upper surface of the main body portion 21 of the heat radiating member 2 as positioning portions into which the positioning protrusions 35 described above are inserted (that is, engaged with the recesses and projections). That is, the mounting member 3 is positioned with respect to the heat radiating member 2 by inserting each positioning projection 35 into the positioning recess 212. In FIG. 1 and FIG. 5, the positioning protrusions 35 and the positioning recesses 212 are each provided with four rectangular apexes, but the number and arrangement of the positioning protrusions 35 and the positioning recesses 212 are not limited to the above. . Further, the shape of the positioning convex portion 35 is not limited to the cylindrical shape, and the positioning convex portion 35 and the positioning concave portion 212 may be any shape that can achieve positioning by engaging with each other. Further, the relationship between the concaves and convexes is not limited to the above, and for example, the positioning may be achieved by engaging the convex part of the heat radiating member 2 into the concave part of the mounting member 3. Further, the attachment member 3 is formed of a convex portion protruding from the upper surface of the main body 31 and surrounds the holder 6 when viewed from above (that is, the holder 6 is rotated along the upper surface of the attachment member 3). A holder positioning portion 36 that prohibits parallel movement is provided. By this holder positioning portion 36, rattling of the holder 6 with respect to the attachment member 3 is suppressed. Each holder 6 has two holding parts 62 that are pressed against the upper surface of the substrate 11 when the screw 81 is tightened, and the holding parts 62 come into contact with the inner peripheral surface of the positioning hole 310. Also, each holder 6 is positioned with respect to the attachment member 3. Each pressing portion 62 has an elongated shape along the side of the substrate 11. Moreover, in each holder 6, the length direction of the two pressing parts 62 is orthogonal to each other, and each holder 6 has an L shape as a whole. Each holder 6 is not limited to the L-shape as described above as long as it has at least one holding portion 62 positioned on the upper side of the substrate 11. For example, each holder 6 has an I-shape having only one holding portion 62. There may be.

また、各ホルダ６には、それぞれ、端子板７が保持されている。各端子板７は、それぞれ、例えば金属のような導電材料からなり、図６に示すように、基板１１に設けられた端子１２に接触導通する基板接触部７０と、電線８２に接触導通する電線接触部７１とを有する。すなわち、電線８２は、端子板７を介して発光素子１０に電気的に接続される。各端子板７は、それぞれ、ホルダ６の下面に開口した収納凹部６０（図２参照）に嵌め込まれることでホルダ６に保持されている。図７に示すように、収納凹部６０には、下側の開口のほか、電線８２が挿入される電線挿入口６００が設けられており、電線接触部７１は電線挿入口６００に挿入された電線８２に対し下面において接触する。また、各端子板７は、それぞれ、Ｕ字形状であって両端を電線接触部７１の一端に連結された連結部７２と、一端を連結部７２の中央部に連結され他端を電線接触部７１の一面に向けた鎖錠部７３とを有する。端子板７は、連結部７２と電線接触部７１との間に形成される開口を電線挿入口６００に連通させる形でホルダ６に保持されている。電線挿入口６００から挿入された電線８２は、鎖錠部７３と電線接触部７１との間に導入され、鎖錠部７３のばね力によって電線接触部７１に押し付けられるとともに、鎖錠部７３の先端が食い込むことによって抜け止め（鎖錠）される。すなわち、端子板７の電線接触部７１と鎖錠部７３とはいわゆる速結端子を構成している。さらに、各端子板７において、電線接触部７１の幅方向の両側には、それぞれ連結凸部７４と被ガイド凸部７５とが設けられている。また、各ホルダ６において、収納凹部６０の内面であって端子板７の電線接触部７１を挟んで互いに対向する内面２箇所には、それぞれ、連結凸部７４が係入する連結穴６０１と、下方に開放されて被ガイド凸部７５が挿入されるガイド溝６０２とが開口している。すなわち、各連結凸部７４がそれぞれ連結穴６０１に係入することで収納凹部６０から下方への端子板７の脱落が防止される。また、端子板７をホルダ６に組み付ける際には、各被ガイド凸部７５がそれぞれガイド溝６０２の内面によってガイドされる。また、各ホルダ６は、それぞれ、ねじ挿通孔６１に挿通されたねじ８１の頭部と電線挿入口６００との間に位置する仕切り部６３を有している。この仕切り部６３によって、ねじ８１と端子板７との間の電気絶縁性が向上している。また、放熱部材２の本体部２１と取付部材３の本体部３１とには、それぞれ、互いに連通して上記の電線８２が挿通される電線挿通孔２１３，３１３が設けられている。 Each holder 6 holds a terminal plate 7. Each terminal plate 7 is made of a conductive material such as metal, for example, and as shown in FIG. 6, as shown in FIG. 6, a substrate contact portion 70 that is in contact with the terminal 12 provided on the substrate 11 and an electric wire that is in contact with the electric wire 82. A contact portion 71. That is, the electric wire 82 is electrically connected to the light emitting element 10 through the terminal plate 7. Each terminal plate 7 is held by the holder 6 by being fitted into a storage recess 60 (see FIG. 2) opened on the lower surface of the holder 6. As shown in FIG. 7, the storage recess 60 is provided with a wire insertion port 600 into which the electric wire 82 is inserted in addition to the lower opening, and the electric wire contact portion 71 is an electric wire inserted into the electric wire insertion port 600. It contacts 82 in the lower surface. Each terminal board 7 is U-shaped and has both ends connected to one end of the wire contact portion 71 and one end connected to the center of the connection portion 72 and the other end connected to the wire contact portion. 71 and a locking part 73 directed to one surface. The terminal plate 7 is held by the holder 6 so that an opening formed between the connecting portion 72 and the wire contact portion 71 communicates with the wire insertion port 600. The electric wire 82 inserted from the electric wire insertion port 600 is introduced between the locking portion 73 and the electric wire contact portion 71, and is pressed against the electric wire contact portion 71 by the spring force of the locking portion 73. The tip is bitten and locked (locked). That is, the electric wire contact portion 71 and the lock portion 73 of the terminal plate 7 constitute a so-called quick connection terminal. Furthermore, in each terminal board 7, the connection convex part 74 and the to-be-guided convex part 75 are provided in the both sides of the width direction of the electric wire contact part 71, respectively. Further, in each holder 6, a connecting hole 601 into which a connecting convex part 74 is engaged, respectively, on two inner surfaces of the storage recess 60 facing each other across the wire contact part 71 of the terminal plate 7, A guide groove 602 that opens downward and into which the guided convex portion 75 is inserted is open. That is, the connection projections 74 are engaged with the connection holes 601, respectively, so that the terminal plate 7 is prevented from dropping from the storage recess 60 downward. Further, when the terminal plate 7 is assembled to the holder 6, each guided convex portion 75 is guided by the inner surface of the guide groove 602. Each holder 6 has a partition portion 63 positioned between the head of the screw 81 inserted through the screw insertion hole 61 and the wire insertion port 600. The partition part 63 improves the electrical insulation between the screw 81 and the terminal plate 7. Further, the main body portion 21 of the heat radiating member 2 and the main body portion 31 of the attachment member 3 are provided with wire insertion holes 213 and 313 that communicate with each other and through which the above-described electric wire 82 is inserted.

ここで、電線挿入口６００は、取付部材３の本体部３１の上面（すなわちホルダ６が固定される面）に対して中心軸が傾斜した円筒形状の部位の先端に開口していることで、上記の面から離れる向きに開口している。 Here, the electric wire insertion port 600 is opened at the tip of a cylindrical portion whose central axis is inclined with respect to the upper surface of the main body 31 of the mounting member 3 (that is, the surface on which the holder 6 is fixed). It opens in the direction away from the above surface.

上記構成によれば、電線挿入口６００の開口の向きが取付部材３に平行（例えば図７での左向き）とされる場合に比べ、電線挿入口６００への電線８２の挿入時に取付部材３が邪魔になりにくいから、電線挿入口６００への電線８２の挿入が容易となっている。 According to the above-described configuration, the mounting member 3 is inserted when the electric wire 82 is inserted into the electric wire insertion port 600 as compared with the case where the opening direction of the electric wire insertion port 600 is parallel to the mounting member 3 (for example, leftward in FIG. 7). Since it is difficult to get in the way, it is easy to insert the electric wire 82 into the electric wire insertion port 600.

電線挿入口６００の仰角（つまり、電線挿入口６００の開口面の法線と取付部材３の本体部３１の上面とがなす角）θは、９０°に近いほど、電線挿入口６００への電線８２の挿入が容易となる代わりに、取付部材３の上方へのホルダ６の突出寸法が大きくなる。電線挿入口６００の仰角θは、ホルダ６や電線８２が反射板４に干渉しない範囲内でなるべく大きくされることが望ましく、例えば２５°とされる。 The elevation angle of the wire insertion slot 600 (that is, the angle formed by the normal of the opening surface of the wire insertion slot 600 and the upper surface of the main body 31 of the mounting member 3) θ is closer to 90 °, and the wire to the wire insertion slot 600 is closer to 90 °. Instead of facilitating the insertion of 82, the projecting dimension of the holder 6 above the mounting member 3 is increased. The elevation angle θ of the electric wire insertion slot 600 is desirably as large as possible within a range in which the holder 6 and the electric wire 82 do not interfere with the reflecting plate 4, and is set to 25 °, for example.

なお、上記のように１個ずつの端子板７を保持した２個のホルダ６を用いる代わりに、２個の端子板７を保持したホルダを１個のみ用いてもよい。この場合、ホルダの形状は、発光素子１０に重ならないように、例えば環形状やＵ字形状とされる。このようにホルダを１個のみ用いれば、部品点数を削減することができる。 Instead of using the two holders 6 holding the terminal plates 7 one by one as described above, only one holder holding the two terminal plates 7 may be used. In this case, the shape of the holder is, for example, a ring shape or a U shape so as not to overlap the light emitting element 10. If only one holder is used in this way, the number of parts can be reduced.

また、図８に示すように反射板４の外筒部４４に電線挿通孔４４１を設け、電線８２が反射板４から径方向に引き出されるようにしてもよい。 Further, as shown in FIG. 8, an electric wire insertion hole 441 may be provided in the outer cylindrical portion 44 of the reflecting plate 4 so that the electric wires 82 are drawn out from the reflecting plate 4 in the radial direction.

さらに、取付部材３に反射板４を結合させる方法や、反射板４に透光カバー５を結合させる方法としては、上記のような結合爪３４，４６による凹凸係合に代えて、バヨネット式やスクリュー式といった他の周知の方法を用いてもよい。 Furthermore, as a method of coupling the reflecting plate 4 to the mounting member 3 and a method of coupling the translucent cover 5 to the reflecting plate 4, instead of the concave and convex engagement by the coupling claws 34 and 46 as described above, a bayonet type or Other known methods such as a screw method may be used.

また、本実施形態では、電線挿入口６００の向きを各ホルダ６で互いに平行とするために、ホルダ６同士、端子板７同士で、形状を互いに異ならせているが、ホルダ６同士、端子板７同士で、それぞれ形状を互いに共通としてもよい。 Moreover, in this embodiment, in order to make the direction of the electric wire insertion slot 600 parallel to each other in each holder 6, the shapes of the holders 6 and the terminal plates 7 are different from each other. The shapes may be common to each other.

２放熱部材
３取付部材
６ホルダ
７端子板
１０発光素子
１１基板
３６ホルダ位置決め部
６１ねじ挿通孔
６３仕切り部
７１電線接触部
８１ねじ
８２電線
２１３電線挿通孔
３１３電線挿通孔
４４１電線挿通孔
６００電線挿入口 DESCRIPTION OF SYMBOLS 2 Heat radiation member 3 Mounting member 6 Holder 7 Terminal board 10 Light emitting element 11 Board | substrate 36 Holder positioning part 61 Screw insertion hole 63 Partition part 71 Wire contact part 81 Screw 82 Electric wire 213 Electric wire insertion hole 313 Electric wire insertion hole 441 Electric wire insertion hole 600 Electric wire insertion mouth

Claims

発光素子が実装された基板と、
前記基板に対して熱的に接続される放熱部材と、
前記基板を囲み前記放熱部材に対して固定される取付部材と、
前記取付部材に固定されて前記取付部材からの前記基板の脱落を阻止するホルダとを備え、
前記ホルダは、電線が挿入される電線挿入口を有し、
前記ホルダには、前記電線挿入口に挿入された前記電線に接触導通する電線接触部を有して前記発光素子に電気的に接続される端子板が保持されていて、
前記電線挿入口は、前記取付部材から離れる向きに開口していることを特徴とする照明装置。 A substrate on which a light emitting element is mounted;
A heat dissipating member thermally connected to the substrate;
An attachment member that surrounds the substrate and is fixed to the heat dissipation member;
A holder fixed to the mounting member to prevent the substrate from falling off the mounting member;
The holder has an electric wire insertion slot into which an electric wire is inserted,
The holder holds a terminal plate electrically connected to the light emitting element having an electric wire contact portion that is in contact with the electric wire inserted into the electric wire insertion port,
The said electric wire insertion opening is opened in the direction away from the said attachment member, The illuminating device characterized by the above-mentioned.

前記取付部材は、前記ホルダを位置決めするホルダ位置決め部を有することを特徴とする請求項１記載の照明装置。 The lighting device according to claim 1, wherein the attachment member includes a holder positioning portion that positions the holder.

前記ホルダは絶縁材料からなり、ねじ止め固定用のねじが挿通されるねじ挿通孔と、前記ねじ挿通孔に挿通されたねじの頭部と前記電線挿入口との間に位置する仕切り部とを有することを特徴とする請求項１又は請求項２記載の照明装置。 The holder is made of an insulating material, and includes a screw insertion hole through which a screw for fixing screws is inserted, and a partition portion positioned between the head of the screw inserted through the screw insertion hole and the wire insertion port. The lighting device according to claim 1, wherein the lighting device is provided.

前記取付部材と前記放熱部材とには、それぞれ、前記電線が挿通される電線挿通孔が設けられていることを特徴とする請求項１〜３のいずれか１項に記載の照明装置。 The lighting device according to any one of claims 1 to 3, wherein the attachment member and the heat dissipation member are each provided with a wire insertion hole through which the wire is inserted.

前記取付部材に固定されて前記基板を囲む筒形状の反射板を備え、
前記反射板には、前記電線が挿通される電線挿通孔が設けられていることを特徴とする請求項１〜４のいずれか１項に記載の照明装置。
A cylindrical reflector fixed to the mounting member and surrounding the substrate;
The lighting device according to claim 1, wherein the reflecting plate is provided with an electric wire insertion hole through which the electric wire is inserted.