JP6913289B2 - Lighting device - Google Patents

Lighting device Download PDF

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Publication number
JP6913289B2
JP6913289B2 JP2019172417A JP2019172417A JP6913289B2 JP 6913289 B2 JP6913289 B2 JP 6913289B2 JP 2019172417 A JP2019172417 A JP 2019172417A JP 2019172417 A JP2019172417 A JP 2019172417A JP 6913289 B2 JP6913289 B2 JP 6913289B2
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housing
substrate
light emitting
emitting element
power supply
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JP2019212646A (en
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鈴木 勝也
勝也 鈴木
増田 敏文
敏文 増田
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Toshiba Lighting and Technology Corp
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Toshiba Lighting and Technology Corp
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  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

本発明の実施形態は、発光素子を用いた照明装置に関する。 An embodiment of the present invention relates to a lighting device using a light emitting element.

従来、例えば防犯灯や道路灯等の照明装置では、筐体の下面側に発光素子が配置されるとともに、発光素子からの光の配光を制御するためのレンズが配置され、さらに、レンズを保護するために筐体の下面をグローブで覆っていることが多い。 Conventionally, in a lighting device such as a security light or a road light, a light emitting element is arranged on the lower surface side of the housing, and a lens for controlling the light distribution of the light from the light emitting element is arranged. The underside of the housing is often covered with gloves for protection.

また、部品点数の削減等のため、レンズとグローブの機能を併せ持つように、レンズ部を設けた透光カバーを筐体の下面に取り付けるようにしたものがある。 Further, in order to reduce the number of parts and the like, there is a case in which a translucent cover provided with a lens portion is attached to the lower surface of the housing so as to have the functions of a lens and a glove.

また、発光素子を実装した器具をレンズやグローブなどで覆う場合は発光素子の熱を効率よく放熱する必要もある。 Further, when the fixture on which the light emitting element is mounted is covered with a lens, a glove, or the like, it is necessary to efficiently dissipate the heat of the light emitting element.

特開2014−72106号公報Japanese Unexamined Patent Publication No. 2014-721106

本発明が解決しようとする課題は、発光素子を実装した基板からの放熱効果を向上できる照明装置を提供することである。 An object to be solved by the present invention is to provide a lighting device capable of improving the heat dissipation effect from a substrate on which a light emitting element is mounted.

実施形態の照明装置は、上面部および周囲の側面部を有し下面に開口部が形成されているとともに、基端側に取付部を有し、この基端側から先端側にかけて長い形状に形成された筐体と;基板、およびこの基板に実装された複数の発光素子を有し、前記筐体の開口側に配置された光源ユニットと;前記筐体の内側から前記開口部に向け、前記筐体の長手方向に沿って突出し、前記基板が取付られる複数の第1の壁部と;前記筐体の内側から前記筐体の幅方向に沿って突出するとともに、前記第1の壁部と一体に形成された第2の壁部と;を具備し、前記複数の第1の壁部は、前記基板に実装された前記発光素子に対応した位置に沿って設けられた前記第1の壁部と、前記発光素子に対応しない位置に設けられた1つの前記第1の壁部と、を有し、前記発光素子に対応しない位置に設けられた前記第1の壁部には、前記基板をねじで締め付け固定するためのねじ孔が形成されていることを特徴とする。 The lighting device of the embodiment has an upper surface portion and a peripheral side surface portion, an opening is formed on the lower surface portion, and has a mounting portion on the proximal end side, and is formed in a long shape from the proximal end side to the distal end side. With a housing; a substrate, and a light source unit having a plurality of light emitting elements mounted on the substrate and arranged on the opening side of the housing; With a plurality of first wall portions projecting along the longitudinal direction of the housing and to which the substrate is mounted; with the first wall portion protruding from the inside of the housing along the width direction of the housing. a second wall portion formed integrally; includes a plurality of first wall portions, the provided along the position corresponding to the light emitting element mounted on the substrate first wall The substrate is provided on the first wall portion having a portion and one said first wall portion provided at a position not corresponding to the light emitting element and provided at a position not corresponding to the light emitting element. It is characterized in that a screw hole for tightening and fixing the screw is formed.

本発明によれば、放熱効果を向上できることが期待できる。 According to the present invention, it can be expected that the heat dissipation effect can be improved.

一実施形態を示す照明装置の断面図である。It is sectional drawing of the lighting apparatus which shows one Embodiment. 同上照明装置の断面図である。It is sectional drawing of the lighting apparatus of the same as above. 同上照明装置の下方から見た分解状態の斜視図である。It is a perspective view of the disassembled state seen from the lower side of the lighting apparatus of the same as above. 同上照明装置の下方から見た斜視図である。It is a perspective view seen from the lower side of the lighting apparatus of the same as above. 同上照明装置の上方から見た斜視図である。It is a perspective view seen from above of the lighting apparatus of the same as above. 同上照明装置の透光カバーを外した底面図である。It is the bottom view which removed the translucent cover of the lighting apparatus as above. 同上照明装置の透光カバーの斜視図である。It is a perspective view of the translucent cover of the lighting apparatus of the same as above. 同上照明装置のブッシングの斜視図である。It is a perspective view of the bushing of the lighting device of the same as above.

以下、一実施形態を、図1ないし図8を参照して説明する。 Hereinafter, one embodiment will be described with reference to FIGS. 1 to 8.

図1ないし図5に示すように、照明装置10は、例えば電柱やポール等に設置される防犯灯や街路灯である。 As shown in FIGS. 1 to 5, the lighting device 10 is, for example, a security light or a street light installed on a utility pole, a pole, or the like.

照明装置10は、筐体11、この筐体11に組み込まれる光源ユニット12と採光ユニット13とブッシング14、筐体11の下面に取り付けられる透光カバー15、光源ユニット12と透光カバー15との間に配置される延焼防止シート16等を備えている。 The lighting device 10 includes a housing 11, a light source unit 12 incorporated in the housing 11, a lighting unit 13, a bushing 14, a translucent cover 15 attached to the lower surface of the housing 11, and a light source unit 12 and a translucent cover 15. It is equipped with a fire spread prevention sheet 16 and the like arranged between them.

まず、図1ないし図3、および図6を参照し、光源ユニット12について説明する。光源ユニット12は、基板20、この基板20にそれぞれ実装された複数の発光素子21および電源回路22を備えている。 First, the light source unit 12 will be described with reference to FIGS. 1 to 3 and 6. The light source unit 12 includes a substrate 20, a plurality of light emitting elements 21 mounted on the substrate 20, and a power supply circuit 22.

基板20は、金属をベースとするかあるいは絶縁材料で形成され、基板20の下面に配線パターンが形成されている。基板20は、略長方形に形成され、長手方向の一端側に発光素子実装領域23aが形成され、他端側に電源回路実装領域23bが形成されている。基板20の長手方向における発光素子実装領域23aと電源回路実装領域23bとの寸法関係は、発光素子実装領域23aが電源回路実装領域23bよりも小さく、例えば1:2の関係にある。 The substrate 20 is made of a metal base or an insulating material, and a wiring pattern is formed on the lower surface of the substrate 20. The substrate 20 is formed in a substantially rectangular shape, a light emitting element mounting region 23a is formed on one end side in the longitudinal direction, and a power supply circuit mounting region 23b is formed on the other end side. The dimensional relationship between the light emitting element mounting area 23a and the power supply circuit mounting area 23b in the longitudinal direction of the substrate 20 is such that the light emitting element mounting area 23a is smaller than the power supply circuit mounting area 23b, for example, 1: 2.

発光素子実装領域23aの略中央の1個所、および電源回路実装領域23bの幅方向一側の1箇所には、基板20を筐体11にねじ25で締め付け固定するための取付孔26が形成されている。電源回路実装領域23bの幅方向他側の1箇所には、位置決め孔27が形成されている。発光素子実装領域23aの幅方向中央で取付孔26よりも一端側に、挿通孔28が形成されている。 A mounting hole 26 for tightening and fixing the substrate 20 to the housing 11 with screws 25 is formed at one place substantially in the center of the light emitting element mounting area 23a and one place on one side in the width direction of the power supply circuit mounting area 23b. ing. A positioning hole 27 is formed at one location on the other side of the power supply circuit mounting region 23b in the width direction. An insertion hole 28 is formed at the center of the light emitting element mounting region 23a in the width direction on one end side of the mounting hole 26.

発光素子21は、例えばSMD(Surface Mount Device)パッケージのLEDが用いられている。複数の発光素子21は、基板20の下面の発光素子実装領域23aに実装され、基板20の下面の配線パターンに接続されている。本実施形態では、複数の発光素子21は、基板20の幅方向に2列で、基板20の長手方向に沿って所定の間隔をあけて配列されている。なお、発光素子21は、LEDの場合にはCOB(Chip On Board)モジュールを用いてもよく、また、EL(Electro Luminescence)素子等を用いてもよい。 As the light emitting element 21, for example, an LED in an SMD (Surface Mount Device) package is used. The plurality of light emitting elements 21 are mounted in the light emitting element mounting region 23a on the lower surface of the substrate 20 and connected to the wiring pattern on the lower surface of the substrate 20. In the present embodiment, the plurality of light emitting elements 21 are arranged in two rows in the width direction of the substrate 20 at predetermined intervals along the longitudinal direction of the substrate 20. In the case of an LED, the light emitting element 21 may use a COB (Chip On Board) module, an EL (Electro Luminescence) element, or the like.

電源回路22は、基板20の電源回路実装領域23bに実装されている。電源回路22は、複数の電子部品29を有している。これら電子部品29のうち、リード線を有するリード部品は基板20の上面に配置されるとともにリード線が基板20の下面に挿通して配線パターンに接続され、チップ部品は基板20の下面に配置されて配線パターンに接続されている。電子部品29には、基板20の上面に実装されていて照明装置10の周囲の明るさを検知するための照度
センサ30が含まれている。そして、電源回路22は、外部から供給される交流電力を所定の直流電力に変換し、この直流電力を発光素子21に供給して発光素子21を発光させるものであり、さらに、照度センサ30によって検出する明るさが所定の閾値よりも低い場合に発光素子21を点灯させ、所定の閾値よりも高い場合に発光素子21を消灯させるように、発光素子21の点灯および消灯を自動的に制御する。
The power supply circuit 22 is mounted in the power supply circuit mounting area 23b of the board 20. The power supply circuit 22 has a plurality of electronic components 29. Among these electronic components 29, the lead component having a lead wire is arranged on the upper surface of the substrate 20, the lead wire is inserted through the lower surface of the substrate 20 and connected to the wiring pattern, and the chip component is arranged on the lower surface of the substrate 20. Is connected to the wiring pattern. The electronic component 29 includes an illuminance sensor 30 mounted on the upper surface of the substrate 20 for detecting the ambient brightness of the lighting device 10. Then, the power supply circuit 22 converts the AC power supplied from the outside into a predetermined DC power, supplies the DC power to the light emitting element 21, causes the light emitting element 21 to emit light, and further, the illuminance sensor 30 causes the light emitting element 21 to emit light. The lighting and extinguishing of the light emitting element 21 is automatically controlled so that the light emitting element 21 is turned on when the detected brightness is lower than the predetermined threshold value and the light emitting element 21 is turned off when the detected brightness is higher than the predetermined threshold value. ..

また、図1ないし図6に筐体11を示す。筐体11は、例えばアルミニウムなどの金属製で、上面部32および周囲の側面部33を有し、内部に空間部34が形成されているとともに一面側である下面に開口部35が形成されている。筐体11の基端側には例えば電柱やポール等に取り付けられる取付部36が一体に形成されている。筐体11は、基端側から反対の先端側にかけての長手方向に長い形状に形成されている。 Further, FIGS. 1 to 6 show the housing 11. The housing 11 is made of metal such as aluminum, has an upper surface portion 32 and a peripheral side surface portion 33, and has a space portion 34 formed inside and an opening 35 formed on the lower surface portion on one side. There is. A mounting portion 36 to be mounted on, for example, a utility pole or a pole is integrally formed on the base end side of the housing 11. The housing 11 is formed in a long shape in the longitudinal direction from the proximal end side to the opposite distal end side.

筐体11の下面周辺部には環状の凹溝37が形成され、この凹溝37に筐体11と透光カバー15との間の防水性を確保するための環状のパッキング38が配置されている。さらに、筐体11の先端側の幅方向中央の1箇所、および基端側の幅方向一側の1箇所に基板20をねじ25で締め付け固定するためのねじ孔を有するボス39a,39bがそれぞれ突設され、基端側の幅方向他側の1箇所に基板20の位置決め孔27が嵌り込む位置決め突起40aを有するボス40が突設されている。さらに、筐体11の先端側の幅方向中央の1箇所、および基端側の幅方向両側の2箇所に、透光カバー15をねじ41で締め付け固定するためのねじ孔を有するボス42a,42bがそれぞれ形成されている。ボス42aは、基板20の挿通孔28を挿通される。 An annular concave groove 37 is formed around the lower surface of the housing 11, and an annular packing 38 for ensuring waterproofness between the housing 11 and the translucent cover 15 is arranged in the concave groove 37. There is. Further, bosses 39a and 39b having screw holes for tightening and fixing the substrate 20 with screws 25 at one place in the center of the width direction on the tip side of the housing 11 and one place on the one side in the width direction on the base end side, respectively. A boss 40 is projected so as to have a positioning protrusion 40a into which the positioning hole 27 of the substrate 20 is fitted at one position on the other side in the width direction on the base end side. Further, bosses 42a and 42b having screw holes for tightening and fixing the translucent cover 15 with screws 41 at one location in the center of the housing 11 in the width direction and at two locations on both sides in the width direction on the proximal end side. Are formed respectively. The boss 42a is inserted through the insertion hole 28 of the substrate 20.

筐体11の内部には、筐体11の先端側と基端側との中間位置であって、基板20の発光素子実装領域23aと電源回路実装領域23bとの間に対応した位置に、空間部34内に突出する仕切部43が形成されている。仕切部43は、筐体11内の幅方向に沿って壁状に形成されており、筐体11内の空間部34を先端側の発光素子側空間部34aと基端側の電源回路側空間部34bとに仕切っている。 Inside the housing 11, there is a space at an intermediate position between the tip end side and the base end side of the housing 11 and at a position corresponding to the light emitting element mounting area 23a and the power supply circuit mounting area 23b of the substrate 20. A partition portion 43 protruding into the portion 34 is formed. The partition portion 43 is formed in a wall shape along the width direction in the housing 11, and the space portion 34 in the housing 11 is divided into a space portion 34a on the light emitting element side on the tip side and a space on the power supply circuit side on the base end side. It is divided into parts 34b.

筐体11の内部には、筐体11の長手方向に沿って発光素子側空間部34aに突出する複数の壁部44,45が形成されている。本実施形態では、幅方向両側の壁部44と中央の壁部45とを備えている。両側の壁部44は、基板20に2列に実装された発光素子21にそれぞれ対応した位置に沿って形成されており、また、中央の壁部45は、基板20の取付孔26に対応した位置であってボス39a,42aに対応した位置に形成されている。両側の壁部44には、基板20に実装された各発光素子21の位置に対応して基板20に接触する複数の接触部44aが形成されている。接触部44aは、壁部44の厚みより大きい直径を有する円柱状に形成されている。中央の壁部45には、ボス39a,42aがそれぞれ一体に形成されている。 Inside the housing 11, a plurality of wall portions 44, 45 protruding from the space portion 34a on the light emitting element side along the longitudinal direction of the housing 11 are formed. In the present embodiment, wall portions 44 on both sides in the width direction and wall portions 45 in the center are provided. The wall portions 44 on both sides are formed along positions corresponding to the light emitting elements 21 mounted in two rows on the substrate 20, and the central wall portion 45 corresponds to the mounting hole 26 of the substrate 20. It is a position and is formed at a position corresponding to the bosses 39a and 42a. A plurality of contact portions 44a that come into contact with the substrate 20 are formed on the wall portions 44 on both sides corresponding to the positions of the light emitting elements 21 mounted on the substrate 20. The contact portion 44a is formed in a columnar shape having a diameter larger than the thickness of the wall portion 44. Bosses 39a and 42a are integrally formed on the central wall 45, respectively.

筐体11の内部には、仕切部43および壁部44,45が一体に形成されている。筐体11の開口部35の内側に位置するボス39a,39b,40、仕切部43および壁部44,45等の下面は、同一平面に形成され、基板20の上面が接触して取り付けられる基板取付部46として構成されている。 A partition portion 43 and wall portions 44 and 45 are integrally formed inside the housing 11. The lower surfaces of the bosses 39a, 39b, 40, the partition 43, the wall 44, 45, etc. located inside the opening 35 of the housing 11 are formed in the same plane, and the upper surface of the substrate 20 is attached in contact with the lower surface. It is configured as a mounting portion 46.

筐体11の基端側の側面部33には、配線孔47および通気孔48が形成されている。配線孔47の外面側には、配線孔47の周囲を囲むように突部47aが形成されている。通気孔48は、気体の通過を可能とするとともに液体の通過を不可とする内圧調整フィルタ48aによって閉塞されている。 Wiring holes 47 and ventilation holes 48 are formed in the side surface portion 33 on the base end side of the housing 11. A protrusion 47a is formed on the outer surface side of the wiring hole 47 so as to surround the periphery of the wiring hole 47. The vent 48 is closed by an internal pressure adjusting filter 48a that allows the passage of gas and prevents the passage of liquid.

筐体11の上面部32は全体的に曲面で構成されているが、上面部32の頂部に平面部49が形成され、この平面部49に電源回路側空間部34bに連通する採光孔50が形成されている。 The upper surface portion 32 of the housing 11 is composed of a curved surface as a whole, but a flat surface portion 49 is formed on the top surface of the upper surface portion 32, and the flat surface portion 49 has a lighting hole 50 communicating with the space portion 34b on the power supply circuit side. It is formed.

筐体11の内面から基板20の発光素子実装領域23aまでの発光素子側空間部34aの最大高さ
は、筐体11の内面から基板20の電源回路実装領域23bまでの電源回路側空間部34bの最大高さりも低く形成されている。
The maximum height of the light emitting element side space 34a from the inner surface of the housing 11 to the light emitting element mounting area 23a of the substrate 20 is the power circuit side space 34b from the inner surface of the housing 11 to the power circuit mounting area 23b of the board 20. The maximum height of the is also formed low.

そして、筐体11の開口部35よりも基板20の外形が小さい関係にあり、筐体11に基板20を固定した状態では、筐体11の開口部35(空間部34)の内側縁部と基板20の外側縁部との間に隙間51が設けられている。この隙間51は、例えば0.5mm程度である。 The outer shape of the board 20 is smaller than that of the opening 35 of the housing 11, and when the board 20 is fixed to the housing 11, it is connected to the inner edge of the opening 35 (space 34) of the housing 11. A gap 51 is provided between the substrate 20 and the outer edge portion. The gap 51 is, for example, about 0.5 mm.

また、図1および図3に採光ユニット13を示す。採光ユニット13は、採光孔50にパッキング53を介して嵌め込まれる透光性を有する採光窓54、および採光窓54から採光された外光を照度センサ30に導くとともに外光が電源回路側空間部34b内に放出されるのを防止する遮光筒55を備えている。 Further, FIGS. 1 and 3 show the daylighting unit 13. The daylighting unit 13 guides the daylighting window 54 having translucency, which is fitted into the daylighting hole 50 via the packing 53, and the outside light collected from the daylighting window 54 to the illuminance sensor 30, and the outside light is a space portion on the power supply circuit side. It is equipped with a light-shielding cylinder 55 that prevents it from being released into 34b.

また、図1、図3および図8にブッシング14を示す。ブッシング14は、例えばゴム等の絶縁性および弾性を有する材料で形成されている。ブッシング14には、外部から電源回路22に交流電力を供給する一対の電線58が挿通する一対の電線挿通孔59が形成されている。
ブッシング14の外面側には円筒部60が形成され、この円筒部60の外周に配線孔47の周縁部が嵌り込む溝部61が形成されている。筐体11の外面に対向する溝部61の内面の外周部には溝部61内に突出する鍔部62が形成されている。図1に示すように、ブッシング14が筐体11に取り付けられた状態では、鍔部62が筐体11の外面に接触するように構成されている。
Further, the bushing 14 is shown in FIGS. 1, 3 and 8. The bushing 14 is made of an insulating and elastic material such as rubber. The bushing 14 is formed with a pair of electric wire insertion holes 59 through which a pair of electric wires 58 for supplying AC power to the power supply circuit 22 from the outside are inserted.
A cylindrical portion 60 is formed on the outer surface side of the bushing 14, and a groove portion 61 into which the peripheral edge portion of the wiring hole 47 is fitted is formed on the outer periphery of the cylindrical portion 60. A flange portion 62 projecting into the groove portion 61 is formed on the outer peripheral portion of the inner surface of the groove portion 61 facing the outer surface of the housing 11. As shown in FIG. 1, when the bushing 14 is attached to the housing 11, the collar portion 62 is configured to come into contact with the outer surface of the housing 11.

また、図1ないし図4、および図7に透光カバー15を示す。透光カバー15は、透光性を有する例えば合成樹脂やガラスによって形成されている。透光カバー15の周辺部には、筐体11の凹溝37に侵入してパッキング38に当接する環状の当接部65が突設されている。透光カバー15の先端側の幅方向中央の1箇所、および基端側の幅方向両側の2箇所に、透光カバー15を筐体11に固定するためのねじ41が挿通する取付孔66a,66bが形成されている。 Further, FIGS. 1 to 4 and 7 show the translucent cover 15. The translucent cover 15 is made of, for example, synthetic resin or glass having translucency. An annular contact portion 65 that penetrates into the concave groove 37 of the housing 11 and abuts on the packing 38 is projected from the peripheral portion of the translucent cover 15. Mounting holes 66a through which screws 41 for fixing the translucent cover 15 to the housing 11 are inserted into one location in the center of the width direction on the tip side of the translucent cover 15 and two locations on both sides in the width direction on the base end side. 66b is formed.

透光カバー15には、基板20の発光素子実装領域23aを覆う発光素子側カバー部67a、および電源回路実装領域23bを覆う電源回路側カバー部67bが形成されている。 The translucent cover 15 is formed with a light emitting element side cover portion 67a that covers the light emitting element mounting region 23a of the substrate 20 and a power supply circuit side cover portion 67b that covers the power supply circuit mounting region 23b.

発光素子側カバー部67aは、平板状に形成され、基板20の下面に接触される。発光素子側カバー部67aには、基板20の各発光素子21の位置に対応しレンズ部68が形成されているとともに、基板20を筐体11に固定しているねじ25の位置に対応して突出部69が形成されている。レンズ部68は、上面側が発光素子21を配置する凹面に形成され、下面側が発光素子側カバー部67aから突出する凸面に形成されており、発光素子21からの光を所定の配光に制御する。突出部69は、複数のレンズ部68の内側間に位置し、ねじ25との干渉を防止するように発光素子側カバー部67aの下方に半球状に突設されている。レンズ部68と突出部69とでは、発光素子側カバー部67aに対してレンズ部68よりも突出部69の方が下方に突出されている(図1の2点鎖線参照)。 The light emitting element side cover portion 67a is formed in a flat plate shape and is in contact with the lower surface of the substrate 20. A lens portion 68 is formed on the light emitting element side cover portion 67a corresponding to the position of each light emitting element 21 of the substrate 20, and also corresponds to the position of the screw 25 fixing the substrate 20 to the housing 11. A protrusion 69 is formed. The upper surface side of the lens portion 68 is formed on a concave surface on which the light emitting element 21 is arranged, and the lower surface side is formed on a convex surface protruding from the light emitting element side cover portion 67a, and controls the light from the light emitting element 21 to a predetermined light distribution. .. The protruding portion 69 is located between the insides of the plurality of lens portions 68, and is hemispherically projected below the light emitting element side cover portion 67a so as to prevent interference with the screw 25. In the lens portion 68 and the protruding portion 69, the protruding portion 69 protrudes downward from the lens portion 68 with respect to the light emitting element side cover portion 67a (see the two-dot chain line in FIG. 1).

電源回路側カバー部67bには、基板20の電源回路22や基板20を筐体11に固定しているねじ25との干渉を防止するために、基板20との間に所定の間隙が形成されているように下方へ突出する突出部70が形成されている。突出部70は、電源回路側カバー部67bの略全域に形成されており、筐体11の下面や基板20に平行な平面部71を有している。突出部70は、筐体11の下面に対してレンズ部68よりも下方へ突出されているとともに、その突出量が突出部69の突出量と同じとされている(図1の2点鎖線参照)。さらに、突出部70の幅方向の両側には、基板20を筐体11に押し付ける複数の押付部72が形成されている。 A predetermined gap is formed in the power supply circuit side cover portion 67b with the power supply circuit 22 of the board 20 and the screw 25 fixing the board 20 to the housing 11 in order to prevent interference with the board 20. A protruding portion 70 is formed so as to project downward. The protruding portion 70 is formed in substantially the entire area of the power supply circuit side cover portion 67b, and has a flat surface portion 71 parallel to the lower surface of the housing 11 and the substrate 20. The protruding portion 70 projects downward from the lens portion 68 with respect to the lower surface of the housing 11, and the protruding amount is the same as the protruding amount of the protruding portion 69 (see the two-dot chain line in FIG. 1). ). Further, a plurality of pressing portions 72 for pressing the substrate 20 against the housing 11 are formed on both sides of the protruding portion 70 in the width direction.

また、延焼防止シート16は、透光カバー15の電源回路側カバー部67bの内面に沿って配置され、基板20の電源回路実装領域23bに実装された電源回路22と透光カバー15の電源回路側カバー部67bとの間を隔離する。延焼防止シート16は、例えばノーメックス(商標名
)紙のタイプ410等が用いられる。
Further, the fire spread prevention sheet 16 is arranged along the inner surface of the power supply circuit side cover portion 67b of the translucent cover 15, and is mounted on the power supply circuit mounting area 23b of the board 20. Separate from the side cover 67b. As the fire spread prevention sheet 16, for example, Nomex (trade name) paper type 410 or the like is used.

このように構成された照明装置10は、取付部36および別途用いられる取付金具によって例えば道路の脇に設置された電柱やポール等に設置される。その際、電源回路22は電線58によって交流電源に接続され、筐体11はアース接続される。照明装置10の設置状態では、筐体11の先端側が斜め上方に向けて傾斜し、光源ユニット12および透光カバー15等が道路の中心側に対向される。 The lighting device 10 configured in this way is installed on, for example, a utility pole or a pole installed on the side of a road by means of a mounting portion 36 and a mounting bracket used separately. At that time, the power supply circuit 22 is connected to the AC power supply by the electric wire 58, and the housing 11 is connected to the ground. In the installed state of the lighting device 10, the tip end side of the housing 11 is inclined obliquely upward, and the light source unit 12, the translucent cover 15, and the like are opposed to the center side of the road.

そして、照明装置10は、筐体11の上面の採光窓54から採光される外光が遮光筒55を通じて照度センサ30に入射し、照度センサ30が明るさを検出する。 Then, in the lighting device 10, external light collected from the daylighting window 54 on the upper surface of the housing 11 enters the illuminance sensor 30 through the light-shielding cylinder 55, and the illuminance sensor 30 detects the brightness.

電源回路22は、発光素子21の消灯状態において、照度センサ30で検出する明るさが所定の閾値よりも低くなることにより、交流電力を所定の直流電力に変換して発光素子21に供給し、発光素子21を点灯させる。また、電源回路22は、発光素子21の点灯状態において、照度センサ30で検出する明るさが所定の閾値よりも高くなることにより、発光素子21への直流電力の供給を停止し、発光素子21を消灯させる。 When the light emitting element 21 is turned off, the power supply circuit 22 converts the AC power into a predetermined DC power and supplies it to the light emitting element 21 when the brightness detected by the illuminance sensor 30 becomes lower than a predetermined threshold value. The light emitting element 21 is turned on. Further, the power supply circuit 22 stops supplying DC power to the light emitting element 21 when the brightness detected by the illuminance sensor 30 becomes higher than a predetermined threshold value in the lighting state of the light emitting element 21, and the light emitting element 21 stops supplying DC power. Turns off.

また、発光素子21の点灯時において、発光素子21が発生する熱は、基板20に伝わり、基板20から筐体11に熱伝導され、筐体11の外面から大気中に放熱され、さらに、基板20に伝わった熱の一部が透光カバー15に伝わり、透光カバー15の外面から大気中に放熱される。 Further, when the light emitting element 21 is lit, the heat generated by the light emitting element 21 is transferred to the substrate 20, heat is conducted from the substrate 20 to the housing 11, is dissipated to the atmosphere from the outer surface of the housing 11, and further, the substrate is further lit. Part of the heat transferred to 20 is transferred to the translucent cover 15, and is dissipated to the atmosphere from the outer surface of the translucent cover 15.

電源回路22の電子部品29が発生する熱は、電源回路22が配置されている電源回路側空間部34a内の空気中に放熱されるとともに、電源回路側空間部34a内の空気の対流によって筐体11に伝わり、筐体11の外面から大気中に放熱される。 The heat generated by the electronic component 29 of the power supply circuit 22 is dissipated into the air in the space portion 34a on the power supply circuit side where the power supply circuit 22 is arranged, and is encapsulated by the convection of the air in the space portion 34a on the power supply circuit side. It is transmitted to the body 11 and radiated to the air from the outer surface of the housing 11.

そして、本実施形態の照明装置10は、筐体11内に仕切部43を設け、この仕切部43により基板20の発光素子21側と電源回路22側とに対応して筐体11内の空間部34を仕切り、熱的に隔離しているため、1つの基板20に実装された発光素子21からの熱と電源回路22からの熱とが空間部34を通じて互いに影響するのを抑制できる。 The lighting device 10 of the present embodiment is provided with a partition 43 in the housing 11, and the partition 43 corresponds to the light emitting element 21 side of the substrate 20 and the power supply circuit 22 side, and the space in the housing 11 is provided. Since the portions 34 are partitioned and thermally isolated, it is possible to suppress the heat from the light emitting element 21 mounted on one substrate 20 and the heat from the power supply circuit 22 from affecting each other through the space portion 34.

基板20に実装された発光素子21の位置に対応して基板20に接触する接触部44aを設けているため、発光素子21の熱を効率よく筐体11に伝えることができ、放熱効果を向上できる。 Since the contact portion 44a that contacts the substrate 20 is provided corresponding to the position of the light emitting element 21 mounted on the substrate 20, the heat of the light emitting element 21 can be efficiently transferred to the housing 11 and the heat dissipation effect is improved. can.

筐体11内には、基板20の発光素子21側に対応した空間部34(発光素子側空間部34a)に壁部44,45を設けているため、筐体11と基板20との接触面積が増加し、放熱効果を向上できる。 In the housing 11, wall portions 44 and 45 are provided in the space portion 34 (light emitting element side space portion 34a) corresponding to the light emitting element 21 side of the substrate 20, so that the contact area between the housing 11 and the substrate 20 is provided. Can be increased and the heat dissipation effect can be improved.

壁部44には接触部44aを一体に設け、壁部45には基板20を固定するボス39aや透光カバー15を固定するボス42aを一体に設けているため、筐体11の構造を簡素化することができる。 Since the contact portion 44a is integrally provided on the wall portion 44, and the boss 39a for fixing the substrate 20 and the boss 42a for fixing the translucent cover 15 are integrally provided on the wall portion 45, the structure of the housing 11 is simplified. Can be transformed into.

筐体11内に仕切部43および壁部44,45を設けることにより、筐体11の強度を向上できる。 By providing the partition portions 43 and the wall portions 44 and 45 in the housing 11, the strength of the housing 11 can be improved.

筐体11の内面から基板20の発光素子実装領域23aまでの発光素子側空間部34aの最大高さは、筐体11の内面から基板20の電源回路実装領域23bまでの電源回路側空間部34bの最大高さりも低いため、基板20の発光素子実装領域23aを筐体11に近付け、発光素子21の熱を筐体11に伝わりやすくして放熱効果を高め、また、基板20の電源回路実装領域23bを筐体11から離し、電源回路22の電子部品29と筐体11との間に耐雷サージに必要な絶縁距離を確保
することができる。
The maximum height of the light emitting element side space 34a from the inner surface of the housing 11 to the light emitting element mounting area 23a of the substrate 20 is the power circuit side space 34b from the inner surface of the housing 11 to the power circuit mounting area 23b of the board 20. Since the maximum height of the board 20 is also low, the light emitting element mounting area 23a of the board 20 is brought closer to the housing 11, the heat of the light emitting element 21 is easily transferred to the housing 11 to enhance the heat dissipation effect, and the power supply circuit of the board 20 is mounted. The region 23b can be separated from the housing 11 to secure the insulation distance required for lightning surge resistance between the electronic component 29 of the power supply circuit 22 and the housing 11.

また、筐体11の上面部32は全体的に曲面で構成されているため、平面で構成した場合に比べて、積雪しにくく、電柱やポールに登って作業を行う作業者の足場になるのを防止できる。 In addition, since the upper surface portion 32 of the housing 11 is composed of a curved surface as a whole, it is less likely to accumulate snow than when it is configured on a flat surface, and it becomes a scaffolding for workers who climb electric poles and poles to perform work. Can be prevented.

筐体11の上面部32は全体的に曲面で構成されているが、上面部32の頂部に平面部49を形成し、この平面部49に採光孔50を設け、この採光孔50にパッキング53を介して採光窓54を配置しているため、パッキング53が確実に機能し、浸水を防止でき、なお、仮に、曲面部分に採光孔50を設け、この採光孔50にパッキング53を介して採光窓54を配置した場合、曲面部分とパッキング53との間に隙間が生じる可能性があり、浸水の虞がある。 The upper surface portion 32 of the housing 11 is composed of a curved surface as a whole, but a flat surface portion 49 is formed on the top of the upper surface portion 32, a lighting hole 50 is provided in the flat surface portion 49, and a packing 53 is provided in the lighting hole 50. Since the daylighting window 54 is arranged via the packing 53, the packing 53 functions reliably and water can be prevented. In addition, a daylighting hole 50 is temporarily provided on the curved surface portion, and the daylighting hole 50 is used for daylighting through the packing 53. When the window 54 is arranged, a gap may be formed between the curved surface portion and the packing 53, and there is a risk of flooding.

また、筐体11の配線孔47の外面側に、配線孔47の周囲を囲むように突部47aを設けているため、筐体11の外面を伝わって流れる雨水が配線孔47に流れ込まないように突部47aで遮ることができ、防水性を向上できる。 Further, since the protrusion 47a is provided on the outer surface side of the wiring hole 47 of the housing 11 so as to surround the circumference of the wiring hole 47, rainwater flowing along the outer surface of the housing 11 does not flow into the wiring hole 47. It can be blocked by the protrusion 47a to improve waterproofness.

筐体11の配線孔47を閉塞するブッシング14に、筐体11の外面に接触する鍔部62を設けているため、筐体11の外面を伝わって流れる雨水が配線孔47に流れ込まないように鍔部62で遮ることができ、防水性を向上できる。 Since the bushing 14 that closes the wiring hole 47 of the housing 11 is provided with a flange portion 62 that contacts the outer surface of the housing 11, rainwater flowing along the outer surface of the housing 11 is prevented from flowing into the wiring hole 47. It can be blocked by the collar 62 to improve waterproofness.

また、透光カバー15に、筐体11の下面に対して、レンズ部68よりも下方へ突出する突出部70を設けているため、レンズ部68の傷付きを防止できる。例えば、照明装置10の施工時等に、透光カバー15を下向きとして照明装置10を地面等の載置面に置いた場合、突出部70が載置面に載置されることにより、レンズ部68が載置面に当たりにくく、レンズ部68の傷付きを防止できる。 Further, since the translucent cover 15 is provided with a protruding portion 70 projecting downward from the lens portion 68 with respect to the lower surface of the housing 11, it is possible to prevent the lens portion 68 from being scratched. For example, when the lighting device 10 is placed on a mounting surface such as the ground with the translucent cover 15 facing downward at the time of construction of the lighting device 10, the protruding portion 70 is mounted on the mounting surface, so that the lens portion is formed. The 68 does not easily hit the mounting surface, and the lens portion 68 can be prevented from being scratched.

透光カバー15の複数のレンズ部68の内側間に、筐体11の下面に対してレンズ部68よりも下方へ突出する突出部69を設けているため、突出部70と同様に、レンズ部68の傷付きを防止できる。 Since a protruding portion 69 that protrudes downward from the lens portion 68 with respect to the lower surface of the housing 11 is provided between the insides of the plurality of lens portions 68 of the translucent cover 15, the lens portion is similar to the protruding portion 70. 68 scratches can be prevented.

透光カバー15の突出部70は、筐体11の下面や基板20に平行な平面部71を有することにより、突出部70を載置面に載置した状態での照明装置10の姿勢が安定し、レンズ部68が載置面に当たらないようにできる。 Since the projecting portion 70 of the translucent cover 15 has a flat surface portion 71 parallel to the lower surface of the housing 11 and the substrate 20, the posture of the lighting device 10 in a state where the projecting portion 70 is mounted on the mounting surface is stable. However, the lens portion 68 can be prevented from hitting the mounting surface.

透光カバー15の突出部70と基板20の電源回路22との間に延焼防止シート16を介在させているため、電源回路22が発火した場合でも透光カバー15の延焼を防止できる。 Since the fire spread prevention sheet 16 is interposed between the protruding portion 70 of the translucent cover 15 and the power supply circuit 22 of the substrate 20, it is possible to prevent the spread of fire of the translucent cover 15 even if the power supply circuit 22 ignites.

透光カバー15の突出部70に、基板20を筐体11に押し付ける押付部72を設けているため、筐体11と押付部72との間で基板20を保持し、基板20を筐体11に密着させて放熱効果を向上させることができる。 Since the protruding portion 70 of the translucent cover 15 is provided with a pressing portion 72 for pressing the substrate 20 against the housing 11, the substrate 20 is held between the housing 11 and the pressing portion 72, and the substrate 20 is pressed against the housing 11. It is possible to improve the heat dissipation effect by making it adhere to.

透光カバー15のレンズ部68の周辺部すなわち発光素子側カバー部67aが筐体11との間に基板20を保持し、基板20を筐体11に密着させて放熱効果を向上させることができる。 The peripheral portion of the lens portion 68 of the translucent cover 15, that is, the light emitting element side cover portion 67a holds the substrate 20 between the transparent cover 15 and the housing 11, and the substrate 20 can be brought into close contact with the housing 11 to improve the heat dissipation effect. ..

また、基板20の外側縁部と筐体11の開口部35(空間部34)の内側縁部との間に隙間51を設けているため、基板20の配線パターンや実装されている部品と筐体11との間に絶縁空間を形成し、基板20と筐体11との絶縁距離を確保できるとともに、寒暖によって基板20や筐体11の収縮または膨張があっても絶縁距離を維持でき、さらに、隙間51を通じて空気の流れが可能となり、放熱性の向上が期待できる。 Further, since a gap 51 is provided between the outer edge of the board 20 and the inner edge of the opening 35 (space 34) of the housing 11, the wiring pattern of the board 20 and the mounted components and the housing are provided. An insulating space can be formed between the body 11 and the substrate 20 to secure the insulating distance between the substrate 20 and the housing 11, and the insulating distance can be maintained even if the substrate 20 and the housing 11 shrink or expand due to temperature. , Air can flow through the gap 51, and improvement in heat dissipation can be expected.

筐体11の開口部35の内側に、基板20を取り付ける基板取付部46を設けているため、基板20の外側縁部と筐体11の開口部35(空間部34)の内側縁部との間に隙間51を設けることができる。 Since the board mounting portion 46 for mounting the board 20 is provided inside the opening 35 of the housing 11, the outer edge of the board 20 and the inner edge of the opening 35 (space 34) of the housing 11 A gap 51 can be provided between them.

本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

10 照明装置
11 筐体
12 光源ユニット
15 透光カバー
16 延焼防止シート
20 基板
21 発光素子
22 電源回路
68 レンズ部
70 突出部
72 押付部
10 Lighting equipment
11 housing
12 Light source unit
15 Translucent cover
16 Fire spread prevention sheet
20 board
21 Luminescent element
22 Power supply circuit
68 Lens section
70 Overhang
72 Pressing part

Claims (1)

上面部および周囲の側面部を有し下面に開口部が形成されているとともに、基端側に取付部を有し、この基端側から先端側にかけて長い形状に形成された筐体と;
基板、およびこの基板に実装された複数の発光素子を有し、前記筐体の開口側に配置された光源ユニットと;
前記筐体の内側から前記開口部に向け、前記筐体の長手方向に沿って突出し、前記基板が取付られる複数の第1の壁部と;
前記筐体の内側から前記筐体の幅方向に沿って突出するとともに、前記第1の壁部と一体に形成された第2の壁部と;
を具備し、前記複数の第1の壁部は、前記基板に実装された前記発光素子に対応した位置に沿って設けられた前記第1の壁部と、前記発光素子に対応しない位置に設けられた1つの前記第1の壁部と、を有し、前記発光素子に対応しない位置に設けられた前記第1の壁部には、前記基板をねじで締め付け固定するためのねじ孔が形成されていることを特徴とする照明装置。
A housing having an upper surface portion and a peripheral side surface portion and an opening formed on the lower surface, and a mounting portion on the proximal end side, which is formed in a long shape from the proximal end side to the distal end side;
A substrate and a light source unit having a plurality of light emitting elements mounted on the substrate and arranged on the opening side of the housing;
With a plurality of first wall portions projecting from the inside of the housing toward the opening along the longitudinal direction of the housing and to which the substrate is mounted;
With a second wall portion that protrudes from the inside of the housing along the width direction of the housing and is integrally formed with the first wall portion;
The first wall portion is provided along the position corresponding to the light emitting element mounted on the substrate, and the first wall portion is provided at a position not corresponding to the light emitting element. A screw hole for tightening and fixing the substrate with a screw is formed in the first wall portion having the first wall portion and the first wall portion provided at a position not corresponding to the light emitting element. A lighting device characterized by being used.
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