JPWO2011074229A1 - Beacon light - Google Patents

Beacon light Download PDF

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JPWO2011074229A1
JPWO2011074229A1 JP2011545952A JP2011545952A JPWO2011074229A1 JP WO2011074229 A1 JPWO2011074229 A1 JP WO2011074229A1 JP 2011545952 A JP2011545952 A JP 2011545952A JP 2011545952 A JP2011545952 A JP 2011545952A JP WO2011074229 A1 JPWO2011074229 A1 JP WO2011074229A1
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lamp body
heater
light source
lamp
source unit
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JP5304904B2 (en
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新野　真吾
真吾 新野
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Toshiba Lighting and Technology Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F1/00—Ground or aircraft-carrier-deck installations
    • B64F1/18—Visual or acoustic landing aids
    • B64F1/20—Arrangement of optical beacons
    • B64F1/205—Arrangement of optical beacons arranged underground, e.g. underground runway lighting units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F1/00—Ground or aircraft-carrier-deck installations
    • B64F1/18—Visual or acoustic landing aids
    • B64F1/20—Arrangement of optical beacons
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
    • E01F9/553—Low discrete bodies, e.g. marking blocks, studs or flexible vehicle-striking members
    • E01F9/559—Low discrete bodies, e.g. marking blocks, studs or flexible vehicle-striking members illuminated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/022—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a floor or like ground surface, e.g. pavement or false floor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/006—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate being distinct from the light source holder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/54—Cooling arrangements using thermoelectric means, e.g. Peltier elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0091—Reflectors for light sources using total internal reflection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/06—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for aircraft runways or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Signs Or Road Markings (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

ＬＥＤ光源部１２を内蔵した灯体１３を基台１５で支持し、ＬＥＤ光源部１２からの出射光をプリズム１９を介して投光出射部２２から外部に出射する。ヒーター２５は、投光出射部２２に付着し投光出射部２２を通る光の出射を妨げる氷雪を溶かすものであり、灯体１３内に設けられた熱発電モジュール２６はヒーター２５に電力を供給する。The lamp body 13 incorporating the LED light source unit 12 is supported by the base 15, and emitted light from the LED light source unit 12 is emitted to the outside from the light projecting and emitting unit 22 via the prism 19. The heater 25 melts ice and snow that adheres to the light projecting and emitting part 22 and prevents light from passing through the light projecting and emitting part 22. To do.

Description

本発明は、空港における滑走路や誘導路あるいは道路に埋め込まれて通行区分等を表示する埋込形標識灯や地上形標識灯等の標識灯に関する。   The present invention relates to a marker lamp such as an embedded marker lamp or a ground marker lamp which is embedded in a runway, taxiway or road at an airport and displays a traffic classification.

例えば、空港における滑走路や誘導路あるいは道路に埋め込まれる埋込形標識灯は、航空機の安全確保のために滑走路上に所定の出射光を出射しなければならない。例えば、埋込形標識灯の投光窓に氷雪が付着し、それが溶解しない場合には、投光窓から所定の出射光を出射することができなくなる。地上形の標識灯も同様である。   For example, an embedded beacon lamp embedded in a runway, taxiway or road at an airport must emit predetermined outgoing light on the runway in order to ensure aircraft safety. For example, when ice or snow adheres to the light projection window of the embedded marker lamp and does not melt, it becomes impossible to emit predetermined outgoing light from the light projection window. The same applies to ground-type marker lights.

これら標識灯の光源が電球である場合には、電球の発熱により標識灯の投光窓に付着した氷雪を溶解することができるが、光源がＬＥＤである場合にはＬＥＤの発熱は電球の発熱より少ないので、投光窓に付着した氷雪を容易に溶解することができない。   When the light source of these marker lamps is a light bulb, ice and snow adhering to the light projection window of the marker lamp can be dissolved by the heat generated by the light bulb. However, when the light source is an LED, the heat generated by the LED is the heat of the bulb. Since it is less, the ice and snow adhering to the projection window cannot be easily melted.

そこで、投光窓に付着した氷雪を機械的に取り除くことが考えられる。例えば、航空機の安全確保のために滑走路上の雪は除雪車で除去されるので、滑走路に設置されている埋込形標識灯の投光窓も同時に除雪することが考えられる。除雪車による除雪の際に埋込形標識灯の投光窓が除雪車の除雪刃で損傷を受けないように、投光窓のプリズムを保護するためにプリズムガードが使用されている。このプリズムガードを原因とする遮光により配光特性が劣化する場合があるが、これを改善する技術が提案されている。（例えば、特許文献１参照）。   Therefore, it is conceivable to mechanically remove ice and snow adhering to the projection window. For example, snow on the runway is removed by a snowplow to ensure the safety of the aircraft. Therefore, it is conceivable to simultaneously remove snow from the projection window of the embedded marker lamp installed on the runway. A prism guard is used to protect the prism of the light projecting window so that the light projecting window of the embedded sign lamp is not damaged by the snow removing blade of the snow remover during snow removal by the snowplow. There are cases where light distribution characteristics deteriorate due to light shielding caused by the prism guard, and a technique for improving this has been proposed. (For example, refer to Patent Document 1).

しかし、特許文献１のものでは、除雪車による除雪を定期的に行わないと、投光窓に氷雪が付着したままの状態となり、その付着した氷雪により出射光が遮られ所定の出射光が得られないことがある。   However, in Patent Document 1, if snow removal by a snowplow is not performed periodically, ice and snow remain attached to the light projection window, and the emitted light is blocked by the attached ice and snow to obtain predetermined emitted light. It may not be possible.

これを解決するために、投光窓に付着した氷雪をヒーターからの熱により溶解させることが考えられる。しかし、ヒーターを設けた場合に、ヒーターの電源をＬＥＤを点灯する主電源である定電流源から供給するようにすると、ヒーターにおいて電力が消費されることになり省電力化が図れないだけでなく、ヒーターのオンオフにより主電源である定電流電源の容量が増減することになる。したがって標識灯として所定の光出力が得られなくなるので好ましくない。ヒーターの電源を別電源とした場合にはヒーターのための配線が別途必要となる。また、埋込形標識灯は航空機などに踏まれるなど外部からの負荷が大きく、埋込形標識灯の外部にヒーターを設けることは好ましくないので、ヒーターの配線やヒーターの実装が難しくなる。   In order to solve this, it is conceivable to melt the ice and snow adhering to the light projection window by the heat from the heater. However, when a heater is provided, if the heater power is supplied from a constant current source that is the main power source for lighting the LED, not only will the power be consumed by the heater, it will not be possible to save power. The capacity of the constant current power source that is the main power source is increased or decreased by turning on / off the heater. Therefore, it is not preferable because a predetermined light output cannot be obtained as a marker lamp. When the heater power source is a separate power source, wiring for the heater is required separately. Further, since the embedded marker lamp has a large external load such as being stepped on by an aircraft or the like, and it is not preferable to provide a heater outside the implantable marker lamp, it is difficult to wire the heater and mount the heater.

特開２００８−１６３５２号公報JP 2008-16352 A

本発明の実施の形態に係る標識灯の平面図である。It is a top view of the marker lamp which concerns on embodiment of this invention. 本発明の実施の形態に係る標識灯の図１中、Ａ−Ａ線に沿って切断して示す断面図である。It is sectional drawing cut | disconnected and shown along the AA line in FIG. 1 of the marker lamp which concerns on embodiment of this invention.

本発明の実施の形態に係る標識灯は、ＬＥＤ光源部を内蔵した灯体と；前記ＬＥＤ光源部からの出射光を外部に出射する投光出射部と；前記投光出射部に付着し前記投光出射部からの出射光を妨げる氷雪を溶かすためのヒーターと；前記ヒーターに電力を供給する熱発電モジュールと；を備えている。本発明の実施例において、特に言及しない限り、各構成は以下による。標識灯は、空港用の場合、例えば滑走路中心線灯、誘導路中心線灯および停止線灯、地上形標識灯などとして構成できる。また、道路用としては、交差点標識灯など、所望の用途に適合するように構成することができる。   A marker lamp according to an embodiment of the present invention includes: a lamp body incorporating an LED light source unit; a light projecting and emitting unit that emits light emitted from the LED light source unit to the outside; A heater for melting ice and snow that hinders light emitted from the light projecting and emitting section; and a thermoelectric generation module that supplies electric power to the heater. In the embodiment of the present invention, each configuration is as follows unless otherwise specified. In the case of an airport lamp, for example, a runway center line lamp, a taxiway center line lamp and a stop line lamp, and a ground type mark lamp can be configured. Further, for road use, it can be configured to suit a desired application such as an intersection beacon lamp.

以下、本発明の実施の形態を説明する。図１は本発明の実施の形態に係る標識灯の平面図、図２は本発明の実施の形態に係る標識灯の断面図である。図１および図２では標識灯として埋込形標識灯である場合を示している。   Embodiments of the present invention will be described below. FIG. 1 is a plan view of a marker lamp according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the marker lamp according to an embodiment of the present invention. FIG. 1 and FIG. 2 show the case where the marker lamp is an embedded marker lamp.

埋込形標識灯１１は、ＬＥＤ光源部１２を内蔵した灯体１３を調整リング１４を介して基台１５に取り付けられて構成されている。基台１５は空港の滑走路や道路の路中に形成され、その基台１５の上部に調整リング１４がボルト１６で装着される。調整リング１４は灯体１３の設置の方向を調整するものである。そして、その調整リング１４の上部に灯体１３がナット１７で装着される。   The embedded marker lamp 11 is configured by attaching a lamp body 13 containing an LED light source unit 12 to a base 15 via an adjustment ring 14. The base 15 is formed in an airport runway or road, and an adjustment ring 14 is attached to the upper part of the base 15 with bolts 16. The adjustment ring 14 adjusts the installation direction of the lamp body 13. Then, the lamp 13 is mounted on the adjustment ring 14 with a nut 17.

なお、灯体１３は、空港の滑走路や道路の路面とほぼ、同一の平面となるように基台１５および調整リング１４とともに路中に埋め込まれる。   The lamp 13 is embedded in the road together with the base 15 and the adjustment ring 14 so as to be substantially the same plane as the airport runway or road surface.

灯体１３は、上部灯体１３ａ及び下部灯体１３ｂによって構成され、上部灯体１３ａと下部灯体１３ｂとによって形成される内部空間にＬＥＤ光源部１２が配置されている。上部灯体１３ａは、高強度金属例えばアルミニウム（Ａｌ）を鋳造して形成され、下部灯体１３ｂは、例えばアルミニウム製のダイキャストにより形成されている。   The lamp 13 includes an upper lamp body 13a and a lower lamp body 13b, and the LED light source unit 12 is disposed in an internal space formed by the upper lamp body 13a and the lower lamp body 13b. The upper lamp body 13a is formed by casting a high-strength metal such as aluminum (Al), and the lower lamp body 13b is formed, for example, by die casting made of aluminum.

灯体１３は、この実施形態では上部灯体１３ａおよび下部灯体１３ｂにより構成しているが、内部空間を形成してその内部空間にＬＥＤ光源１８（発光ダイオード）を配設することができれば、これに限らずどのような構造であってもよい。   The lamp 13 is constituted by the upper lamp 13a and the lower lamp 13b in this embodiment, but if an internal space is formed and the LED light source 18 (light emitting diode) can be disposed in the internal space, Not only this but any structure may be sufficient.

ＬＥＤ光源部１２はＬＥＤ１８を光源とし、ＬＥＤ１８からの光は、プリズム１９を通り光導出溝２０を通って滑走路や道路等に出射される。プリズム１９の先端部が投光窓２１である。以下、投光窓２１及び光導出溝２０の部分、すなわち、ＬＥＤ光源部１２からの出射光をプリズム１９を介して投光窓２１から光導光溝２０を通って外部に出射するまでの部分を投光出射部２２ということにする。   The LED light source unit 12 uses the LED 18 as a light source, and light from the LED 18 passes through the prism 19, passes through the light guide groove 20, and is emitted to a runway, a road, or the like. The tip of the prism 19 is a light projection window 21. Hereinafter, a portion of the light projection window 21 and the light guide groove 20, that is, a portion until light emitted from the LED light source unit 12 is emitted to the outside from the light projection window 21 through the light guide groove 20 via the prism 19. It will be referred to as a light projecting and emitting unit 22.

プリズム１９は、すくなくとも可視光が透過される強化ガラスからなり、断面がほぼ台形状の部分を有し、斜面が投光窓２１と平行になるように配置される。したがって、ＬＥＤ光源部１２からの出射光は、プリズム１９により進行方向が変更され一定の角度で外部に出射される。   The prism 19 is made of tempered glass that transmits at least visible light, has a substantially trapezoidal section, and is arranged so that the slope is parallel to the light projection window 21. Therefore, the light emitted from the LED light source unit 12 is changed in the traveling direction by the prism 19 and is emitted to the outside at a constant angle.

なおプリズム１９は、複数の光導出溝２０ごとに形成したものであってもよく、また複数の光導出溝２０に共通にリング状をなす一体形状のものであってもよい。光導出溝２０は外部にＬＥＤ光源部１２からの出射光を出射する方向を案内するものである。   The prism 19 may be formed for each of the plurality of light guide grooves 20, or may be an integrally formed ring shape common to the plurality of light guide grooves 20. The light guide groove 20 guides the direction in which the emitted light from the LED light source unit 12 is emitted to the outside.

一方、下部灯体１３ｂには、灯体１３を調整リング１４に装着したとき、ＬＥＤ光源部１２のＬＥＤ１８を電気的に接続するための中継端子２３が設けられ、また、中継端子２３に電源を供給するためのプラグ２４が基台１５内に設けられる。このプラグ２４は基台１５の内部に電源を取り込むための外部端子に接続される。   On the other hand, the lower lamp body 13 b is provided with a relay terminal 23 for electrically connecting the LED 18 of the LED light source unit 12 when the lamp body 13 is mounted on the adjustment ring 14. A plug 24 for supply is provided in the base 15. The plug 24 is connected to an external terminal for taking in power into the base 15.

また、灯体１３の内部の投光出射部２２の下部には、ヒーター２５が設けられている。ヒーター２５を投光出射部２２の下部に設けたのは、投光出射部２２を通る光の出射を妨げる氷雪を溶かすためである。ヒーター２５には熱発電モジュール２６から電力が導体配線を介して供給される。   In addition, a heater 25 is provided below the light projecting and emitting portion 22 inside the lamp body 13. The reason why the heater 25 is provided in the lower part of the light projecting and emitting part 22 is to melt ice and snow that hinder the emission of light passing through the light projecting and emitting part 22. Electric power is supplied to the heater 25 from the thermoelectric generator module 26 via a conductor wiring.

このヒーター２５は投光出射部２２の下部に設置されるので、灯体１３の内部にヒーター２５を設置できる。従って、航空機などに踏まれることがなく効率的に投光窓２１に氷雪が付着しないようにできる。   Since the heater 25 is installed in the lower part of the light projecting and emitting portion 22, the heater 25 can be installed inside the lamp body 13. Therefore, ice and snow can be prevented from adhering to the light projection window 21 efficiently without being stepped on by an aircraft or the like.

本実施例では、ヒーター２５は投光出射部２２の下部に設置した例を示したが、周囲温度やヒーター能力によっては下部に限らず投光出射部２２の左右などを含む周囲に配置することはもちろん可能である。なお、投光出射部２２の下部とは、ＬＥＤ光源部１２からの出射光をプリズム１９を介して光導出溝２０を通って外部に出射する部分に対応する灯体内部のいずれかの位置である。   In this embodiment, an example in which the heater 25 is installed in the lower part of the light projecting and emitting unit 22 is shown. However, depending on the ambient temperature and the heater capability, the heater 25 is not limited to the lower part and is disposed around the light projecting and emitting unit 22. Of course it is possible. In addition, the lower part of the light projecting and emitting part 22 is a position inside the lamp body corresponding to a part that emits the light emitted from the LED light source part 12 through the light guide groove 20 via the prism 19 to the outside. is there.

ヒーター２５は電力が供給されると発熱する発熱体であればよい。たとえば、ニッケル・クロム、銅・ニッケルなどの材料で形成される。また熱発電モジュール２６は熱電対であり、２種類の異なった金属または半導体で２点を接合して形成され、２つの接点を異なった温度に保ったときに起電力を生じるものをいう。   The heater 25 may be a heating element that generates heat when electric power is supplied. For example, it is made of a material such as nickel / chromium or copper / nickel. The thermoelectric module 26 is a thermocouple, which is formed by joining two points with two different metals or semiconductors, and generates an electromotive force when the two contacts are kept at different temperatures.

すなわち熱発電モジュール２６は、灯体１３の外部温度とＬＥＤ光源部１２の温度との温度差で発電するように灯体１３及びＬＥＤ光源部１２に熱的に結合されているものである。   That is, the thermoelectric generator module 26 is thermally coupled to the lamp body 13 and the LED light source section 12 so as to generate power with a temperature difference between the external temperature of the lamp body 13 and the temperature of the LED light source section 12.

灯体１３の外部温度とは、灯体１３が外気に曝されている部分から伝熱される温度をいい、ＬＥＤ光源部１２の温度とは、ＬＥＤ１８からの発熱が伝熱される部分の温度をいう。   The external temperature of the lamp body 13 refers to the temperature at which the lamp body 13 is transferred from the part exposed to the outside air, and the temperature of the LED light source unit 12 refers to the temperature of the part at which the heat generated from the LED 18 is transferred. .

熱発電モジュール２６は灯体１３内に配置され、熱発電モジュール２６の一方端は上部灯体１３ａに接触し、他方端はＬＥＤ光源部１２の側面に接触するように配置されている。上部灯体１３ａの外側は外部温度に曝され、上部灯体１３ａは熱伝導率のよい金属（例えばアルミニウム）で形成されているので、熱発電モジュール２６の一方端は灯体１３の外部温度に近似した温度となる。一方、ＬＥＤ光源部１２の側面はＬＥＤ１８からの発熱が伝熱されるので、熱発電モジュール２６の他方端はＬＥＤ温度に近似した温度となる。従って、熱発電モジュール２６は、灯体１３の外部温度とＬＥＤ光源部１２の温度との温度差で発電することになる。   The thermoelectric generation module 26 is disposed in the lamp body 13, and one end of the thermoelectric generation module 26 is in contact with the upper lamp body 13 a and the other end is disposed in contact with the side surface of the LED light source unit 12. The outer side of the upper lamp body 13a is exposed to an external temperature, and the upper lamp body 13a is formed of a metal having a good thermal conductivity (for example, aluminum), so that one end of the thermoelectric generator module 26 is exposed to the external temperature of the lamp body 13. Approximate temperature. On the other hand, since the heat generated from the LED 18 is transferred to the side surface of the LED light source unit 12, the other end of the thermoelectric generator module 26 has a temperature approximate to the LED temperature. Therefore, the thermoelectric generator module 26 generates power with a temperature difference between the external temperature of the lamp body 13 and the temperature of the LED light source unit 12.

したがって降雪時など標識灯の温度差が高い時ほどヒーターへ供給する電流が増し、氷雪を溶かす能力が増すので、効率的に投光窓に氷雪が付着しないようにできる。   Therefore, as the temperature difference of the marker lamp is higher, such as during snowfall, the current supplied to the heater increases and the ability to melt ice and snow increases, so that ice and snow can be effectively prevented from adhering to the projection window.

このように、本発明の実施の形態では、ヒーター２５を灯体１３の投光出射部２２の下部に配置し、ヒーター２５からの熱を投光窓２１の前面の光導光溝２０に伝わる構造とするので、投光出射部２２を通る光の出射を妨げる氷雪を効率的に溶かすことができる。また、ヒーター２５の電力は灯体１３内の熱発電モジュール２６から供給されるので、ヒーター２５の電力を主電源である定電流電源等光源用の電源に頼らず供給することができ、ヒーターへ２５の配線実装が容易である。また灯体１３の気密性能を阻害する恐れもなく、ガスケットなども必要がない。   As described above, in the embodiment of the present invention, the heater 25 is disposed below the light projecting and emitting portion 22 of the lamp body 13, and the heat from the heater 25 is transmitted to the light guide groove 20 on the front surface of the light projecting window 21. Therefore, it is possible to efficiently melt ice and snow that hinder the emission of light through the light projecting and emitting portion 22. Moreover, since the electric power of the heater 25 is supplied from the thermoelectric generator module 26 in the lamp body 13, the electric power of the heater 25 can be supplied without relying on a power source for a light source such as a constant current power source as a main power source. 25 wiring mounting is easy. Further, there is no fear of hindering the airtight performance of the lamp 13, and no gasket or the like is necessary.

また、熱発電モジュール２６は、両端部の温度差が高いほど得る電力が高い特性であり、片側を埋込形標識灯１１の内部で最も発熱するＬＥＤ光源部１２またはそれを実装する基板などとし、もう一方の片側を灯体１３の外部に曝される上部灯体１３ａとし、上部灯体１３ａは熱伝導率の高い金属部品であるので、灯体１３の内部で効率的に発電できる。灯体１３の内部の熱発電モジュール２６で発電し、灯体１３の内部のヒーター２５に電力を供給するので、実装も容易である。   In addition, the thermoelectric generator module 26 has a characteristic that the higher the temperature difference between both ends, the higher the electric power obtained, and one side is the LED light source unit 12 that generates the most heat inside the interior of the embedded marker lamp 11 or a substrate on which it is mounted. The other side is an upper lamp body 13 a exposed to the outside of the lamp body 13, and the upper lamp body 13 a is a metal part having a high thermal conductivity, so that power can be generated efficiently inside the lamp body 13. Since power is generated by the thermoelectric generation module 26 inside the lamp body 13 and electric power is supplied to the heater 25 inside the lamp body 13, mounting is also easy.

以上において幾つかの実施形態を述べたが、これらの実施形態は、単に例として示したもので、本発明の範囲を限定することを意図したものではない。実際、ここに於いて述べた新規な装置は種々の他の形態に具現化されてもよいし、さらに、本発明の主旨またはスピリットから逸脱することなくここに於いて述べた装置の形態における種々の省略、置き換えおよび変更を行ってもよい。付随する請求項およびそれらの均等物は、本発明の範囲および主旨またはスピリットに入るようにそのような形態もしくは変形を含むことを意図している。   Several embodiments have been described above, but these embodiments are merely given as examples and are not intended to limit the scope of the present invention. Indeed, the novel devices described herein may be embodied in a variety of other forms, and may be further modified in the form of devices described herein without departing from the spirit or spirit of the invention. May be omitted, replaced, and changed. The appended claims and their equivalents are intended to include such forms or modifications as would fall within the scope and spirit or spirit of the present invention.

関連出願の引用Citation of related application

本出願は、２００９年１２月１７日に出願した先行する日本国特許出願２００９−２８６１７９号による優先権の利益に基礎をおき、かつ、その利益を求めており、その内容全体が引用によりここに包含される。   This application is based on and seeks the benefit of priority from the prior Japanese Patent Application No. 2009-286179 filed on Dec. 17, 2009, the entire contents of which are hereby incorporated by reference. Is included.

１１…埋込形標識灯、１２…ＬＥＤ光源部、１３…灯体、１４…調整リング、１５…基台、１６…ボルト、１７…ナット、１８…ＬＥＤ、１９…プリズム、２０…光導出溝、２１…投光窓、２２…投光出射部、２３…中継端子、２４…プラグ、２５…ヒーター、２６…熱発電モジュール DESCRIPTION OF SYMBOLS 11 ... Embedded type | mold marker lamp, 12 ... LED light source part, 13 ... Lamp body, 14 ... Adjustment ring, 15 ... Base, 16 ... Bolt, 17 ... Nut, 18 ... LED, 19 ... Prism, 20 ... Light guide groove , 21 ... Projection window, 22 ... Projection emission part, 23 ... Relay terminal, 24 ... Plug, 25 ... Heater, 26 ... Thermoelectric generator module

Claims (10)

ＬＥＤ光源部を内蔵した灯体と；
前記ＬＥＤ光源部からの出射光を外部に出射する投光出射部と；
前記投光出射部に付着し前記投光出射部からの出射光を妨げる氷雪を溶かすためのヒーターと；
前記ヒーターに電力を供給する熱発電モジュールと；
を備えたことを特徴とする標識灯。A lamp with a built-in LED light source;
A light projecting and emitting unit that emits light emitted from the LED light source unit to the outside;
A heater for melting ice and snow that adheres to the light projecting and emitting part and blocks light emitted from the light projecting and emitting part;
A thermoelectric module for supplying power to the heater;
A sign lamp characterized by comprising: 前記灯体は、上部灯体および下部灯体により構成され、前記ＬＥＤ光源部および前記熱発電モジュールは、前記上部灯体に装着されていることを特徴とする請求項１記載の標識灯。   The marker lamp according to claim 1, wherein the lamp body includes an upper lamp body and a lower lamp body, and the LED light source unit and the thermoelectric generation module are mounted on the upper lamp body. 前記投光出射部は、プリズムと前記プリズムを介して前記ＬＥＤ光源部からの出射光を外部に出射する光導出溝とを備えていることを特徴とする請求項１記載の標識灯。  The marker lamp according to claim 1, wherein the light projecting and emitting unit includes a prism and a light guide groove that emits light emitted from the LED light source unit to the outside via the prism. 前記プリズムは、複数の光導出溝用に、リング状をなして一体に形成されていることを特徴とする請求項３記載の標識灯。   The marker lamp according to claim 3, wherein the prism is integrally formed in a ring shape for a plurality of light guide grooves. 前記ヒーターと前記熱発電モジュールとは、前記灯体内において導体配線により接続されていることを特徴とする請求項１記載の標識灯。   The marker lamp according to claim 1, wherein the heater and the thermoelectric generator module are connected to each other by a conductor wiring in the lamp body. 前記熱発電モジュールは、前期灯体の外部温度と前記ＬＥＤ光源部の温度との温度差で発電するように前記灯体及びＬＥＤ光源部に熱的に結合されていることを特徴とする請求項１記載の標識灯。   The thermoelectric generator module is thermally coupled to the lamp body and the LED light source unit so as to generate power with a temperature difference between an external temperature of the lamp body and a temperature of the LED light source unit. 1. The marker lamp according to 1. 前記熱発電モジュールは、２種類の異なった金属または半導体で２点を接合して形成された熱電対であることを特徴とする請求項１記載の標識灯。   2. The marker lamp according to claim 1, wherein the thermoelectric generation module is a thermocouple formed by joining two points of two different metals or semiconductors. 前記標識灯は埋込形であって、前記ヒーターは前記投光出射部の下部に設置されたことを特徴とする請求項１または６記載の標識灯。   The marker lamp according to claim 1 or 6, wherein the marker lamp is an embedded type, and the heater is installed at a lower portion of the light projecting and emitting section. 前記標識灯は地上形であって、前記ヒーターは前記投光出射部の周囲に設置されたことを特徴とする請求項１または６記載の標識灯。   The marker lamp according to claim 1 or 6, wherein the marker lamp has a ground shape, and the heater is installed around the light projecting and emitting section. 前記ＬＥＤ光源部は、前記灯体に設けられた中継器を介して外部電源に接続されていることを特徴とする請求項１記載の標識灯。   2. The marker lamp according to claim 1, wherein the LED light source unit is connected to an external power source via a repeater provided in the lamp body.
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