JP5688524B2 - Lighting device - Google Patents

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JP5688524B2
JP5688524B2 JP2011191367A JP2011191367A JP5688524B2 JP 5688524 B2 JP5688524 B2 JP 5688524B2 JP 2011191367 A JP2011191367 A JP 2011191367A JP 2011191367 A JP2011191367 A JP 2011191367A JP 5688524 B2 JP5688524 B2 JP 5688524B2
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light source
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reflecting plate
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JP2013054875A (en
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和秀 川本
和秀 川本
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クロイ電機株式会社
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Description

この発明は、避難口の所在を表示する誘導灯装置等に用いられる照明装置に関する。   The present invention relates to an illuminating device used for a guide lamp device or the like that displays the location of an evacuation exit.

施設に設置されて避難口の所在を表示する誘導灯装置のように、透光性の表示パネルの背面側に配置した照明装置から表示パネルに光を照射するものがある。照明装置は、光源の光を前面側に反射する反射板を備え、光源の光を直接、及び反射板で反射して前面側に位置する表示パネルに照射する（例えば特許文献１参照。）。   There is a guide light device that is installed in a facility and displays the location of an evacuation exit, and the display device emits light from a lighting device arranged on the back side of the translucent display panel. The illumination device includes a reflection plate that reflects light from the light source to the front side, and irradiates the display panel positioned on the front side by reflecting the light from the light source directly and by the reflection plate (see, for example, Patent Document 1).

従来の照明装置では、光源を蓄電池や電子回路等を収納した装置本体に固定している。光源として複数のＬＥＤを備えた照明装置では、複数のＬＥＤを実装したＬＥＤ基板が装置本体に固定される。   In a conventional lighting device, a light source is fixed to a device body that houses a storage battery, an electronic circuit, and the like. In an illumination device including a plurality of LEDs as a light source, an LED substrate on which a plurality of LEDs are mounted is fixed to the device body.

特開２００９−９４０８７号公報JP 2009-94087 A

しかし、従来の照明装置では、光源を装置本体に固定していたため、光源が発生する熱が装置本体に収納された蓄電池や電子回路等の部品に伝導し易く、動作不良や劣化の早期化を招く問題があった。   However, in the conventional lighting device, since the light source is fixed to the device main body, heat generated by the light source is easily conducted to components such as a storage battery and an electronic circuit housed in the device main body, and malfunctions and deterioration are accelerated. There was an inviting problem.

この発明の目的は、蓄電池や電源回路等の部品を収納した装置本体に対して着脱自在に取り付けられる反射板に光源を配置することにより、光源で発生した熱が装置本体に収納された蓄電池や電子回路等の部品に及ぼす影響を小さくし、動作不良や劣化の早期化を防止できる照明装置を提供することにある。   An object of the present invention is to provide a storage battery in which the heat generated by the light source is stored in the apparatus main body by disposing the light source on a reflection plate that is detachably attached to the apparatus main body storing components such as a storage battery and a power supply circuit. An object of the present invention is to provide an illumination device that can reduce the influence on components such as electronic circuits and prevent malfunctions and premature deterioration.

この発明の照明装置は、装置本体、反射板、光源ユニット、放熱シート、パッキン、枠体を備えている。装置本体は、前面が開放した筐体であり、内部に電源回路を含む部品を収納する。光源ユニットは、電源回路を介して電源の供給を受ける。反射板は、前面を被覆するように装置本体に着脱自在に取り付けられ、光源ユニットを部品から離間した状態で保持する。反射板は、金属平板を素材として光源ユニットが前面側から挿入される有底の凹部を一体的に備えている。放熱シートは、凹部の底面と前記光源ユニットとの間に配置され、弾性体である。パッキンは、光源ユニットの前面側に配置される。枠体は、反射板の前面における凹部の周縁部に全周にわたって当接する状態で反射板に固定される。光源ユニットは、複数のＬＥＤを実装したＬＥＤ基板、複数のＬＥＤのそれぞれが背面側から収納される複数の孔部を備えた反射カバー、背面が反射カバーの前面に圧接する透光性パネルからなる。凹部の深さは、放熱シート、ＬＥＤ基板、反射カバー、透光性パネル及びパッキンの厚さの総和よりも小さい。 The illuminating device of this invention is equipped with the apparatus main body, the reflecting plate, the light source unit, the heat radiating sheet, packing, and the frame. The apparatus main body is a housing whose front surface is open and accommodates components including a power supply circuit therein. The light source unit is supplied with power via a power circuit. The reflection plate is detachably attached to the apparatus main body so as to cover the front surface, and holds the light source unit in a state of being separated from the components. The reflecting plate is integrally provided with a bottomed recess into which the light source unit is inserted from the front side using a metal flat plate as a material. The heat dissipation sheet is disposed between the bottom surface of the recess and the light source unit, and is an elastic body. The packing is disposed on the front side of the light source unit. The frame is fixed to the reflector in a state in which the frame is in contact with the peripheral edge of the recess on the front surface of the reflector over the entire circumference. The light source unit includes an LED substrate on which a plurality of LEDs are mounted, a reflective cover having a plurality of holes in which each of the plurality of LEDs is housed from the back side, and a translucent panel whose back surface is in pressure contact with the front surface of the reflective cover. . The depth of the recess is smaller than the total thickness of the heat dissipation sheet, the LED substrate, the reflective cover, the translucent panel, and the packing.

この構成によれば、光源ユニットで発生した熱が、放熱シートを介して反射板に伝導した後、反射板の全面から放熱され、装置本体に収納された部品に直接伝導することがない。 According to this configuration, after the heat generated in the light source unit is conducted to the reflecting plate through the heat radiating sheet, it is radiated from the entire surface of the reflecting plate and is not directly conducted to the components housed in the apparatus main body.

この発明によれば、光源で発生した熱が装置本体に収納された蓄電池や電子回路等の部品に及ぼす影響を小さくすることができ、動作不良や劣化の早期化を防止できる。   According to the present invention, it is possible to reduce the influence of heat generated by the light source on components such as a storage battery and an electronic circuit housed in the apparatus main body, and prevent malfunction and early deterioration.

この発明の実施形態に係る照明装置の外観図である。It is an external view of the illuminating device which concerns on embodiment of this invention. 同照明装置を構成する反射板の組立図である。It is an assembly drawing of the reflecting plate which comprises the illuminating device. （Ａ）〜（Ｃ）は、同反射板の正面図、平面図及び側面断面図である。(A)-(C) are the front view, top view, and side sectional drawing of the same reflecting plate.

以下に、この発明の実施形態に係る照明装置について、図面を参照して説明する。   Hereinafter, an illumination device according to an embodiment of the present invention will be described with reference to the drawings.

図１に示すように、この発明の実施形態に係る照明装置１０は、本体１及び反射板２を備え、一例として表示パネル２０の背面に配置される。照明装置１０は、表示パネル２０に向けて光を照射する。例えば、誘導灯装置では、表示パネル２０に避難口の所在が不透明の塗料等で表記されている。表示パネル２０は、照明装置１０の光が背面から照射されることにより、避難口の所在を明暗によって表示する。   As shown in FIG. 1, the illuminating device 10 which concerns on embodiment of this invention is equipped with the main body 1 and the reflecting plate 2, and is arrange | positioned at the back surface of the display panel 20 as an example. The illumination device 10 irradiates light toward the display panel 20. For example, in the guide light device, the location of the evacuation exit is indicated on the display panel 20 with an opaque paint or the like. The display panel 20 displays the location of the evacuation exit in light and dark by irradiating light from the lighting device 10 from the back.

本体１は、前面１１が開放した略直方体形状の筐体であり、内部に蓄電池３、回路基板４等の部品を収納している。反射板２は、金属平板のプレス加工により、左右端に傾斜面２２を有する平板状に形成されている。反射板２は、前面１１を閉塞するように本体１にネジ止めされる。本体１には、上面にスリット１２が形成されている。スリット１２に係止部２０１が嵌入されることにより、表示パネル２０が本体１の前面１１に保持される。   The main body 1 is a substantially rectangular parallelepiped housing with the front surface 11 opened, and houses components such as the storage battery 3 and the circuit board 4 therein. The reflecting plate 2 is formed in a flat plate shape having inclined surfaces 22 at the left and right ends by pressing a metal flat plate. The reflector 2 is screwed to the main body 1 so as to close the front surface 11. A slit 12 is formed on the upper surface of the main body 1. The display panel 20 is held on the front surface 11 of the main body 1 by inserting the locking portion 201 into the slit 12.

図２に示すように、反射板２の中央部には、プレス加工によって凹部２１が形成されている。凹部２１内には、放熱シート５１、ＬＥＤ基板５２、反射カバー５３、透光性パネル５４、パッキン５５がこの順に収納される。凹部２１の周縁部は、枠体５６で被覆される。凹部２１の深さは、放熱シート５１、ＬＥＤ基板５２、反射カバー５３、透光性パネル５４及びパッキン５５の厚さの総和より小さい。   As shown in FIG. 2, a recess 21 is formed in the central portion of the reflector 2 by pressing. In the recess 21, the heat radiation sheet 51, the LED substrate 52, the reflection cover 53, the translucent panel 54, and the packing 55 are housed in this order. The peripheral edge of the recess 21 is covered with a frame 56. The depth of the recess 21 is smaller than the total thickness of the heat dissipation sheet 51, the LED substrate 52, the reflection cover 53, the translucent panel 54, and the packing 55.

放熱シート５１は、円盤状を呈する熱電導性の高い弾性体であり、少なくとも前面及び背面に粘着性を備え、背面が凹部２１の底面に密着する。ＬＥＤ基板５２は、前面に複数のＬＥＤを実装しており、背面を放熱シート５１の前面に密着させて凹部２１内に位置決めされる。   The heat dissipating sheet 51 is an elastic body having a disk shape and high thermal conductivity. At least the front surface and the back surface are adhesive, and the back surface is in close contact with the bottom surface of the recess 21. The LED substrate 52 has a plurality of LEDs mounted on the front surface, and is positioned in the recess 21 with the back surface in close contact with the front surface of the heat dissipation sheet 51.

反射カバー５３は、一例として白色樹脂で構成されており、ＬＥＤ基板５２における各ＬＥＤに対向する孔部５３１が複数形成されている。反射カバー５３は、凹部２１の底面２１０に形成された孔部２１１を反射板２の背面側から貫通するビス２１２を介して凹部２１内に固定される。ＬＥＤ基板５２に実装された複数のＬＥＤは、それぞれ複数の孔部５３１内に収納される。   The reflection cover 53 is made of a white resin as an example, and a plurality of hole portions 531 facing each LED in the LED substrate 52 are formed. The reflection cover 53 is fixed in the recess 21 via a screw 212 that passes through a hole 211 formed in the bottom surface 210 of the recess 21 from the back side of the reflection plate 2. The plurality of LEDs mounted on the LED substrate 52 are housed in the plurality of holes 531, respectively.

透光性パネル５４は、前面に環状のパッキン５５が貼着される。枠体５６は、薄板からなる環状体であり、背面からネジ部５６１を突出させている。ネジ部５６１は、反射板２における凹部２１の縁部に形成された孔部２１３を反射板２の前面側から貫通し、反射板２の背面側に露出する。反射板２の背面側に露出したネジ部５６１にナット２１４を螺合させることにより、枠体５６が背面を反射板２の前面における凹部２１の周縁部に当接させた状態で固定される。枠体５６を反射板２に固定すると、パッキン５５が枠体５６の背面及び透光性パネル５４の前面との間に挟持され、透光性パネル５４の背面が反射カバー５３の前面に圧接する。   The translucent panel 54 has an annular packing 55 attached to the front surface. The frame body 56 is an annular body made of a thin plate, and has a threaded portion 561 protruding from the back surface. The threaded portion 561 penetrates from the front side of the reflecting plate 2 through the hole 213 formed at the edge of the recess 21 in the reflecting plate 2 and is exposed to the back side of the reflecting plate 2. By screwing the nut 214 into the screw portion 561 exposed on the back side of the reflecting plate 2, the frame body 56 is fixed in a state where the back surface is in contact with the peripheral portion of the recess 21 on the front surface of the reflecting plate 2. When the frame body 56 is fixed to the reflecting plate 2, the packing 55 is sandwiched between the back surface of the frame body 56 and the front surface of the translucent panel 54, and the back surface of the translucent panel 54 is pressed against the front surface of the reflective cover 53. .

凹部２１の底面には、貫通孔２１５が形成されている。ＬＥＤ基板５２から延出したリード線に接続されたコネクタ５７が、貫通孔２１５を凹部２１内から反射板２の背面側に貫通し、図１に示した電源回路４に接続される。   A through hole 215 is formed on the bottom surface of the recess 21. A connector 57 connected to a lead wire extending from the LED substrate 52 passes through the through hole 215 from the inside of the recess 21 to the back side of the reflector 2 and is connected to the power supply circuit 4 shown in FIG.

上記の構成において、ＬＥＤ基板５２、反射カバー５３及び透光性パネル５４が、この発明の光源ユニット５に相当する。光源ユニット５は、ＬＥＤ基板５２、凹部２１内で、ともに弾性変形する放熱シート５１とパッキン５４とを挟んで、枠体５６の背面と凹部２１の底面２１０との間に挟持され、確実に位置決めされる。   In said structure, the LED board 52, the reflective cover 53, and the translucent panel 54 are equivalent to the light source unit 5 of this invention. The light source unit 5 is sandwiched between the back surface of the frame body 56 and the bottom surface 210 of the concave portion 21 with the heat dissipation sheet 51 and the packing 54 elastically deformed between the LED substrate 52 and the concave portion 21, and reliably positioned. Is done.

図３（Ａ）〜（Ｃ）に示すように、反射板２の前面の中央部で枠体５６の内側から露出した透光性パネル５４を経由してＬＥＤ基板５２に実装されているＬＥＤの光が前面側に配光される。   As shown in FIGS. 3A to 3C, the LED mounted on the LED substrate 52 via the translucent panel 54 exposed from the inside of the frame 56 at the center of the front surface of the reflector 2. Light is distributed to the front side.

反射板２において、ＬＥＤ基板５２の背面側には、放熱シート５１、凹部２１の底面２１０が位置する。本体１の奥行きは、内部に収納した蓄電池３等の部品の奥行きと凹部２１の深さとの和より大きくされている。反射板２を本体１の前面１１に取り付けた際には、底面２１０の背面と本体１内に収納された蓄電池３等の部品との間に、間隙が形成される。   In the reflection plate 2, the heat radiation sheet 51 and the bottom surface 210 of the recess 21 are located on the back side of the LED substrate 52. The depth of the main body 1 is larger than the sum of the depth of the components such as the storage battery 3 housed therein and the depth of the recess 21. When the reflector 2 is attached to the front surface 11 of the main body 1, a gap is formed between the back surface of the bottom surface 210 and the components such as the storage battery 3 housed in the main body 1.

このため、ＬＥＤ基板５２に実装された複数のＬＥＤが発生した熱は、凹部２１の底面から反射板２の全体に伝導した後に反射板２の全面から放熱されるため、本体１内に収納された蓄電池３や回路基板４等の部品には直接伝導することがない。ＬＥＤ基板５２において発生した熱が本体１に収納された蓄電池３や回路基板４等の部品に及ぼす影響を小さくすることができ、動作不良や劣化の早期化を防止できる。   For this reason, the heat generated by the plurality of LEDs mounted on the LED substrate 52 is conducted from the bottom surface of the recess 21 to the entire reflector 2 and then radiated from the entire surface of the reflector 2. There is no direct conduction to components such as the storage battery 3 and the circuit board 4. The influence of heat generated in the LED board 52 on components such as the storage battery 3 and the circuit board 4 housed in the main body 1 can be reduced, and malfunctions and early deterioration can be prevented.

上述の実施形態の説明は、すべての点で例示であって、制限的なものではないと考えられるべきである。本発明の範囲は、上述の実施形態ではなく、特許請求の範囲によって示される。さらに、本発明の範囲には、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。   The above description of the embodiment is to be considered in all respects as illustrative and not restrictive. The scope of the present invention is shown not by the above embodiments but by the claims. Furthermore, the scope of the present invention is intended to include all modifications within the meaning and scope equivalent to the scope of the claims.

１−本体
２−反射板
３−蓄電池
４−回路基板
５−光源ユニット
２１−凹部
５１−放熱シート
５２−ＬＥＤ基板
５３−反射カバー
５４−透光性パネル
５５−パッキン
５６−枠体
２１０−背面 1-Body 2-Reflecting plate 3-Storage battery 4-Circuit board 5-Light source unit 21-Recess 51-Heat dissipation sheet 52-LED board 53-Reflective cover 54-Translucent panel 55-Packing 56-Frame 210-Back

Claims (1)

前面が開放した筐体であり、内部に電源回路を含む部品を収納する装置本体と、
前記電源回路を介して電源の供給を受ける光源ユニットと、
金属平板を素材として前記光源ユニットが前面側から挿入される有底の凹部を一体的に備え、前記凹部の背面が前記部品から離間した状態で前記前面を被覆するように前記装置本体に着脱自在に取り付けられる反射板と、
前記凹部の底面と前記光源ユニットとの間に配置され、弾性体の放熱シートと、
前記光源ユニットの前面側に配置されるパッキンと、
前記反射板の前面における前記凹部の周縁部に全周にわたって当接する状態で前記反射板に固定される枠体と、を備え、
前記光源ユニットは、複数のＬＥＤを実装したＬＥＤ基板、前記複数のＬＥＤのそれぞれが背面側から収納される複数の孔部を備えた反射カバー、背面が前記反射カバーの前面に圧接する透光性パネルからなり、
前記凹部の深さは、前記放熱シート、前記ＬＥＤ基板、前記反射カバー、前記透光性パネル及び前記パッキンの厚さの総和よりも小さい照明装置。 A device body that is a housing with an open front and stores components including a power supply circuit inside,
A light source unit that is supplied with power via the power circuit;
The light source unit is integrally provided with a bottomed recess into which the light source unit is inserted from the front side using a metal flat plate as a raw material, and is detachable from the apparatus main body so that the rear surface of the recess covers the front surface in a state of being separated from the component. A reflector attached to the
Between the bottom surface of the recess and the light source unit, an elastic heat dissipation sheet;
Packing disposed on the front side of the light source unit;
A frame that is fixed to the reflecting plate in a state of being in contact with the peripheral edge of the concave portion on the front surface of the reflecting plate over the entire circumference,
The light source unit includes an LED substrate on which a plurality of LEDs are mounted, a reflective cover having a plurality of holes in which each of the plurality of LEDs is housed from the back side, and a translucency in which the back surface is in pressure contact with the front surface of the reflective cover Consist of panels,
The depth of the concave portion is a lighting device that is smaller than the total thickness of the heat dissipation sheet, the LED substrate, the reflective cover, the translucent panel, and the packing.
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JP5173501B2 (en) * 2008-03-12 2013-04-03 三菱電機株式会社 Lighting device and emergency lighting device
JP5145146B2 (en) * 2008-07-07 2013-02-13 昭和電工株式会社 Lighting system

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CN106545814A (en) * 2016-08-30 2017-03-29 何惠兴 LED flat lamp with emergency function
CN110906260A (en) * 2019-12-27 2020-03-24 冠牌光电智能科技湖北股份有限公司 Solar LED street lamp convenient to installation battery

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