CN1576682A - Embedded sign light device - Google Patents
Embedded sign light device Download PDFInfo
- Publication number
- CN1576682A CN1576682A CNA2004100594896A CN200410059489A CN1576682A CN 1576682 A CN1576682 A CN 1576682A CN A2004100594896 A CNA2004100594896 A CN A2004100594896A CN 200410059489 A CN200410059489 A CN 200410059489A CN 1576682 A CN1576682 A CN 1576682A
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- China
- Prior art keywords
- light
- light source
- lamp
- sign lamp
- main body
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- 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
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- 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
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- 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)
- Road Signs Or Road Markings (AREA)
- Led Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Provided is an embedded beacon light device suitable especially for an airport, with operational problems (surge voltage, operation temperature of light-emitting diodes, and partial light out of a plurality of light-emitting diodes) solved on a light source consisting of the plurality of light-emitting diodes. The embedded beacon light device ML is provided with a beacon light main body 10 provided with a metal light body 10A and buried in a roadbed, an input terminal 20 arranged at the beacon light main body 10, a light source consisting of the plurality of light-emitting diodes 31 arranged at the metal light body 10A of the beacon light main body 10 to be connected to the input terminal 20, and a surge absorption circuit 50 arranged at the metal light body 10A so as to absorb surge entering from the input terminal 20 and with its grounding terminal connected to the metal light body 10A. A plurality of the light bodies are connected in series with a constant-current alternate-current power source CCR.
Description
Technical field
The present invention uses light-emitting diode about a kind of in light source, and several are embedded in the roadbed spaced reciprocally, and the baried type sign lamp device that is connected in series with the constant current source of AC, be fit to be applied to airport etc.
Background technology
In employed baried type sign lamp such as airport, known have light source such as the known employed halogen bulb of a kind of replacement, and the technology of the light-emitting diode of long service life (for example with reference to patent documentation 1).Whereby, can significantly save the maintenance cost that is used for the light source exchange.
[patent documentation 1]:
The spy of Japanese Patent Laid Open Publication opens flat 9-269746 communique.
Yet, this baried type sign lamp device is because of being provided with bigger interval under a kind of state that is embedded in the roadbed, and its majority is supplied with the relation of using under this special form being connected in series with the constant current source of AC, as utilize light-emitting diode to constitute light source, then will be in the face of some problems that in utilization, should solve.Promptly, light-emitting diode is a little less than aspect the stress of the surge voltage that reply is produced because of thunderbolt etc., and, baried type sign lamp device supplies with use because being embedded in the roadbed airport in, so produce change because of temperature traverse makes the luminous intensity of sign lamp easily, and because guarantee a certain amount of luminous intensity and use the relation of several light-emitting diodes, action is good and light-emitting diode that turn off the light occurs frequently though become in using relatively for a long time, is difficult to judge whether be not good as the light source of baried type sign lamp.To illustrate in further detail this below.
1, the baried type sign lamp device used of airport, it is buried underground and is spaced apart about 15～30m, and utilizes distribution cable etc. to carry out distribution.And, and the spacing distance between the lamp lighting control circuit of light-emitting diode, according to circumstances can reach hundreds of rice sometimes.Under this set form, baried type sign lamp device is subjected to the influence of the surge voltage that caused because of induction lightening etc. easily.To this, in the known baried type sign lamp device that utilizes halogen bulb, since strong aspect the stress of the surge voltage that halogen bulb is produced because of thunderbolt etc. in reply, so no problem.Yet, when in light source, using light-emitting diode and since light-emitting diode aspect the reply surge voltage extremely a little less than, so there is the problem of anti-surge voltage characteristic fragilityization in baried type sign lamp device.
2, owing to be embedded with the roadbed of baried type sign lamp device, under sunshine direct projection condition, form high temperature, so, for example also can bring into play the formation of certain performance under 55 ℃ even need to adopt at high outside air temperature.Yet under the situation of the light source that uses light-emitting diode, after operating temperature formed high temperature, luminous quantity can significantly descend.To this, the halogen bulb of the known light source of conduct in baried type sign lamp device, ability is strong, no problem aspect the variation of reply operating temperature.
3, when the light source of baried type sign lamp device when moving bad the light-off, one side is by detecting this situation rapidly and making this light source short circuit, thereby make remaining baried type sign lamp device keep the operating state of former state, one side need be replaced by normal product with the baried type sign lamp device of turning off the light and be reduced.The halogen bulb of the known light source of conduct in baried type sign lamp device, owing to be single use, so by in advance film cutout being connected side by side with light source, it is possible making above-mentioned action no problemly.Yet, utilizing several light-emitting diodes of bright lamp simultaneously to constitute under the situation of light source of baried types sign lamp devices, even at the part light-emitting diode when moving bad the light-off, remaining light-emitting diode still keeps bright lamp, so only outward appearance is carried out visual, be difficult to correctly differentiate whether exist unusual.Even the part light-emitting diode keeps bright lamp, if sign light then also might be lost marking effect below certain luminous intensity, so need detect this situation rapidly and correct.
Summary of the invention
The purpose of this invention is to provide baried type a kind of under the situation that generally is equipped with the light source that constitutes by several light-emitting diodes, that the problem in the utilization is improved, that be particularly suitable for using on the airport and identify the lamp device.
Another purpose of the present invention is also to provide a kind of under the situation that is equipped with the light source that is made of several light-emitting diodes, make to be reinforced aspect the stress of the surge voltage that light-emitting diode caused because of thunderbolt etc. in reply, be particularly suitable for the baried type sign lamp device of using on the airport.
Another object of the present invention is also to provide a kind of under the situation that is equipped with the light source that is made of several light-emitting diodes, even be arranged at the sign lamp that also can produce roughly certain luminous intensity in the harsh environment of temperature conditions, be particularly suitable for the baried type sign lamp device of using on the airport.
A further object of the present invention is also to provide a kind of under the situation that is equipped with the light source that is made of several light-emitting diodes, when the light-emitting diode more than the some is turned off the light, light-emitting diode is all turned off the light and makes its correspondence repair the baried type that is easy to, is particularly suitable for use on the airport to identify the lamp device.
Baried type of the present invention sign lamp device comprise have the metallic lamp body and be embedded in sign lamp main body in the roadbed, on sign lamp main body set input terminal, by the metallic lamp body that is arranged at sign lamp main body in and the light source that constitutes with several light-emitting diodes of input terminal bonded assembly, be arranged in the metallic lamp body and make ground terminal and metallic lamp body bonded assembly surge absorption circuit for absorbing the surge that enters from input terminal; It is characterized in that: several and constant current source of AC are connected in series.
In this invention and following every invention, short of special appointment, the definition of term and technical implication are as follows.
＜about baried type sign lamp device baried type sign lamp device can be the airport with, road use etc. multi-purpose any.But, baried type sign lamp device of the present invention, no matter which kind of purposes it is, it is common using on the light-emitting diode this point in light source.In addition, under the situation of the baried type aircraft warning light of using for the airport, applicable to for example sliding road Center Line Lights, guiding road Center Line Lights etc.
＜about sign lamp main body〉in the present invention, what is called＜sign lamp main body〉be meant in baried type sign lamp device the rest parts except input terminal, light source and surge absorption circuit.Sign lamp main body adopts and disposes the metallic lamp body for light source, surge absorption circuit and other required part are set at least, and makes main portion be embedded in formation in the road surface.
The metallic lamp body adopts the formation that disposes light source described later and surge absorption circuit thereon at least.And the metallic lamp body is avoided the influence of rainwater and dust in order to protect above-mentioned member of formation, allows the inner space that water proof structure is set.In addition, when light source is arranged on the inner space, derive to the outside as sign light, be formed with the light projector window of water proof structure for the light that light source is sent.But the metallic lamp body can be provided with so that light source is exposed to the open air externally.
The inner space optical communication of above-mentioned light projector window and metallic lamp body, the light that helps light source is sent carries out light harvesting, and to throw to the outside from the sign lamp as the certain light distribution characteristic that identifies lamp.And, the light projector window for light that light source is sent to throw to the outside from the sign lamp as certain light distribution characteristic of sign lamp, can carry out optical treatment to it according to needs.For example, can adopt and to reflect with the light that a fixed angle of altitude is throwed from light-emitting diode, form the formation of the little elevation angle again to the outside projection.In this case, can on the light projector window, prism be installed.And, also can on the light projector window, lens be installed, the light distribution characteristic of the sign light that light source sends is expanded along transverse direction more.In addition, also can and use the effect of prism and lens.But, do not carrying out under the situation of optical treatment, can be by the transparent body such as clear glass only be installed on the light projector window, and make the inner space and the outside liquid-tight seal state that forms of metallic lamp body.In addition, if prism, lens etc. are installed, can when being installed, they make the inner space and the outside liquid-tight seal state that forms of sign lamp on the light projector window.And the light projector window can be on sign lamp main body, according to need be so that for example two formation differs from one another with several and suitable angle and the form of subtend are provided with.
And the metallic lamp body is fit to be made of top lamp body and bottom lamp body, and can adopt the formation that the top lamp body is removably covered on the lamp body of bottom.In this case, the top lamp body exposes subgrade surface, and the bottom lamp body is accommodated in the pedestal.And the top lamp body is provided with the open-work window.In addition, light source can be installed on any one of top lamp body and bottom lamp body.The metallic lamp body also can have the power supply introduction part that is used for importing from the outside power supply, is used for the installation portion that is provided with etc. on base station described later etc. except above formation.
Sign lamp main body is owing to be embedded in the metallic lamp body in the roadbed, so allow to have pedestal, adjustable ring, liner, adapter etc.Base station forms the open box-shaped cylindraceous in its upper end, and exposes the ground-surface state with the open end in advance and buried underground, and is connected with distribution cable in being embedded in ground.And, have the supporting peripheral tier portion of the surrounding edge that is used to support the metallic lamp body in the open end.The metallic lamp body has slowly outstanding protrusion in the above, roughly forms discoidly, and is formed with towards the light projector window of transverse direction on the superincumbent protrusion and the photoconduction that is used for hauling oneself willingly in the future the projection light channeling conduct without barrier of optical window goes out ditch.And the metallic lamp body, is removably installed in the open end the state that its surrounding edge supports with the supporting course portion of base station.
And, if will identifying when the installation direction of lamp in horizontal surface adjusted according to hope and installed on pedestal, uses adjustable ring, be actv..Adapter is a kind of being present between pedestal and the metallic lamp body, will utilize the power supply connection mode of piping work method, is converted to the device of the power supply connection mode that exchange metallic lamp body comparatively is fit to.In addition, also the function of adjustable ring and adapter can be incorporated on the mono-member.Liner is improving reinforcing road bed occasion etc., and pedestal uses when being in than the dark position of subgrade surface, is used to increase the installation portion of the metallic lamp body of base side.
＜about input terminal〉input terminal is arranged on the sign lamp main body, is connected with light source described later and surge absorption circuit.When sign lamp main body contained pedestal, input terminal was arranged on the metallic lamp body.And, be embedded in the roadbed and and identify the distribution cable that is connected in series between lamp devices several baried types, in roadbed, at first be imported in the pedestal, be connected with input terminal by conductor wire and/or adaptor union then.In addition, there is no particular limitation to the form of input terminal.
＜about light source〉light source is to be used to guarantee necessary luminous intensity in order to obtain required sign light, constitute by several light-emitting diodes of proper number.And its illuminant colour of light-emitting diode is chosen according to identifying the desired colourity of lamp device as baried type.In addition, in order to obtain being fit to the sign light of desired colourity, also can use the luminous necessary light-emitting diodes photochromic, more than at least 2 kinds of additive color mixed light that carry out with plurality of colors.For example, in order to obtain, use green or glaucous light-emitting diode and blue light-emitting diode as the restriction green light in the chromatic value scope of aircraft warning light.And, in order to obtain white light, use RGB3 look luminous 3 kinds of light-emitting diodes.Any one mode of the bright lamp of time-division of bright lamp or short time when in addition, colour mixture can be some kinds of light-emitting diodes.In the latter case, even be bright lamp of time-division, also can feel colour mixture because of the image retention effects of human eye.And, except lighting a lamp, also can identify light thereby constitute convertible polychrome by making various illuminant colours carry out bright lamp selectively according to the light-emitting diode mixed light that need make some kinds of illuminant colours.
And, about the light-emitting diode of light source, can suitably adopt following formation as required.
1. (the installation form of light-emitting diode) light-emitting diode can use diversified forms such as shell shape, mounted on surface shape, integrated shape.In addition, so-called [shell shape] is meant the built-in light-emitting diode chip for backlight unit in inside at the plastic lens of shell shape, and is extended with the formation of pig-tail wire from the back side.So-called [mounted on surface shape] is to replace the pig-tail wire of extending, and reaches overleaf or the side is formed with the terminal that mounted on surface is used.So-called [integrated shape] is to instigate several light-emitting diodes to be configured in formation on the mono-substrate.
2. (wiring substrate) can use 1 or several wiring substrates in order to dispose several light-emitting diodes.Wiring substrate is the device that light-emitting diode is electrically connected as required.And wiring substrate both can be rigidity, also can be toughness.In addition, also can be used as and be used for the device that several light-emitting diodes are supported and play a role on permeability of heat fixing body described later.
3. (thermally conductive resin casting mold body) thermally conductive resin casting mold body is by surrounding light-emitting diode, and play a role to the permeability of heat medium that the metallic lamp body conducts by permeability of heat fixing body described later, thereby the helpful device of heat radiation of the heat that light-emitting diode is produced as the heat that light-emitting diodes light is produced.
4. (permeability of heat fixing body) permeability of heat fixing body has the installation portion to sign lamp main body, light source is installed on the certain position of metallic lamp body, and form thermally conductive relation, and several light-emitting diodes and wiring substrate are supported with permeability of heat casting mold body.
5. (positioning unit) positioning unit is the device that the arrangement of several light-emitting diodes is remained certain position relation, is particularly suitable for the light-emitting diode of lens shaped.When using positioning unit, adopts a kind of make its be embedded in thermally conductive resin casting mold body interior constitute good.But, if desired, positioning unit can be arranged on the exterior position that is exposed to thermally conductive resin notes type body.
＜about surge absorption circuit〉surge absorption circuit is arranged on the metallic lamp body of sign lamp main body, is preferably in the inner space.And its ground terminal is connected with above-mentioned metallic lamp body.By, above-mentioned ground terminal forms ground connection via the metallic lamp body with ground.And surge absorption circuit can utilize the various surge absorption circuits of both having known.As the surge absorbing device, can utilize for example rheostat and Zener diode (Zener diode) etc.
＜about effect of the present invention〉in the present invention, owing to adopt above-mentioned formation, even because of thunderbolt etc. makes distribution cable inductive surge voltage, also can utilize surge absorption circuit and be absorbed, on the light-emitting diode of light source, can not apply big surge voltage, so that light-emitting diode is difficult to is destroyed.
And, though the ground terminal of surge absorption circuit is not connected with ground, but be connected, because the metallic lamp body is embedded in the roadbed, so can be grounded by the metallic lamp body with the metallic lamp body.Therefore, can absorb surge voltage well.And, be difficult though the ground terminal of surge absorption circuit directly is connected with ground, it is rather easy to be connected with the metallic lamp body.
Baried type of the present invention sign lamp device is characterised in that: have heat insulating component, in sign lamp main body to surrounding by the light source that light-emitting diode constituted.
In the present invention, what is called＜sign lamp main body〉be meant in baried type sign lamp device the rest parts except light source and heat insulating component.Sign lamp main body adopts and makes its main portion be embedded in formation in the road surface.And, sign lamp main body since within it portion be provided with light source and heat insulating component, so preferable form is for having the metallic lamp body, and in formation inner space, the inside of metallic lamp body.
Light source is made of several light-emitting diodes, and is provided with in sign lamp main body with the state that is accommodated in the heat insulating component described later.In addition, power supply is connected with several light-emitting diodes, can carry out via the conductor wire that for example connects heat insulating component.
The heat insulating component ambient light source also makes light source form thermal insulation construction to the inside of baried type sign lamp device, and be arranged in the sign lamp main body.And, for will be, and derive to the outside of sign lamp main body from light that light source radiated to heat insulating component, can have light inlet window.It is good that this light inlet window also has adiathermancy, for example can adopt formations such as the less relatively glass of permeability to heat, transparent plastic material.And heat insulating component can form container-like, or light source is hidden.When forming when container-like, both container self can have been utilized thermal insulation material to form, also can on the container inner face of non-thermal insulation material system or outside, paste thermal insulation material.On the other hand, when utilizing thermal insulation material to hide light source, can be around light source spray heat insulating material, or utilize thermal insulating material to carry out casting mold the light source, or the thermal insulation material of the tabular of softness or cloth shape twined or wraps up around light source.In addition, as thermal insulation material, can utilize various adiabatic material or the heat reflection material both known.
In the present invention, except above-mentioned formation, the heat release that the heat that the light-emitting diode that can be provided for that also heat insulating component is surrounded produces is discharged to the outside of heat insulating component.In addition, as heat release, can use Peltier's element, blowing engine, heat pipe etc.And the roadbed that heat extraction is preferably burying sign lamp main body underground directly carries out, and also can adopt the formation of carrying out in the atmosphere.
And, as the part of formation of the present invention, can add the formation of the invention of the next item up as required.
In the present invention, by possessing above-mentioned formation, even the sign lamp main body of being buried underground in roadbed forms high temperature because of the irradiation of solar heat, can not reach a high temperature by the light-emitting diode of the light source that heat insulating component surrounded, so can produce the roughly sign light of certain luminous intensity yet.
And, by also adding the heat release that the heat that light source produced in the heat insulating component is discharged to the outside is set, if even form under the hi-heat environment not using heat release then can identify in the heat insulating component in the lamp main body, the operating temperature that also can utilize heat extraction and will constitute the light-emitting diode of light source maintains roughly certain low temperature level, so can not identified the temperature effect in the lamp main body, and always produce sign light with required roughly certain luminous intensity, carry out credible high sign action.
Baried type sign lamp device of the present invention is characterised in that: have light source and monitor control circuit, set light source in sign lamp main body when promptly the some in several light-emitting diodes is turned off the light, detects this situation and makes light source to power supply short circuit.
In the present invention, what is called＜sign lamp main body〉be meant in baried type sign lamp device the rest parts except input terminal, light source and light source monitor control circuit.Sign lamp main body adopts and makes its main portion be embedded in formation in the road surface.And, sign lamp main body since within it portion be provided with the part that light source and light source monitor control circuit, so preferable form is for having the metallic lamp body, and in formation inner space, the inside of metallic lamp body.
Light source monitors that control circuit is that a kind of bright lamp situation to several light-emitting diodes of constituting light source monitors, and detects this situation when the number of the light-emitting diode of turning off the light reaches certain proportion, and makes the circuit of light source to power supply short circuit.That is, have the 1st function, the 2nd function that when the number of the light-emitting diode of turning off the light reaches certain proportion, detects this situation that the bright lamp situation to light-emitting diode monitors, make 3rd function of light source to power supply short circuit.The the 1st to the 3rd function all can be arranged on the sign lamp main body, but also can be as required part or all of the 2nd function be arranged at long-range supervision control center.And, in this case, can utilize the judgement that monitors the person liable and detect, or confirm to detect the back and morphosis the 2nd function that makes the 3rd function effect the overseer.In addition, can between long-range supervision control center and baried type sign lamp, special-purpose control line be set, carry out above-mentioned supervision control.But the electric wireline that also can adopt a kind of utilization to be used for the distribution cable of supply power transmits mode.The 3rd function is a kind of device that replaces known film cutout, and for example can utilizing, relay constitutes.
And, as the part of formation of the present invention, can add aforesaid formation of the present invention as required.
In the present invention, by possessing above-mentioned formation, can be really and promptly detect because of turning off the light more than the some in several light-emitting diodes, keep the state that is in a kind of danger as the function of imbedding sign lamp device the earliest thereby make, and it is carried out short circuit.Whereby, can utilize exterior check and discern baried type eligible for repair sign lamp like a cork, so can promptly carry out correspondence repairing at the scene.
And, in case detect the state that is in a kind of danger as the function of imbedding sign lamp device the earliest of keeping, just make its short circuit, thereby can continue the remaining sign lamp device of imbedding that is connected in series with the constant current source of AC is powered, and make its perseveration, so be safe aspect keeping in the function on airport etc.
Description of drawings
Figure 1 shows that the airport of conduct the 1st example of baried type sign lamp device of the present invention identifies the planar view of lamp device with baried type.
Fig. 2 is the expansion cross sectional drawing along the II-II ' line of Fig. 1.
Fig. 3 is used to illustrate with the circuit block diagram of several airports with the bright lamp mode of series connection of baried type sign lamp device.
Fig. 4 is the expansion cross sectional drawing with light source and heat insulating component.
Fig. 5 is the circuit diagram with bright circuit for lamp of light-emitting diode and surge absorption circuit.
Fig. 6 is the circuit block diagram that monitors control circuit with light source.
The airport that Figure 7 shows that conduct the 2nd example of baried type sign lamp device of the present invention identifies the bright circuit for lamp of light-emitting diode of lamp device and the circuit diagram of surge absorption circuit with baried type.
Nomenclature
10: sign lamp main body;
10A: metallic lamp body;
10a: inner space;
10B: pedestal;
10b: bolt insertion hole;
110b: peripheral tier portion (supporting peripheral tier portion);
11: the top lamp body;
11a: protrusion;
11b: photoconduction goes out ditch;
11c: light projector window;
12: the bottom lamp body;
12a: mount pad;
20: input terminal;
21,22: the constant current input terminal;
30: light source;
31: light-emitting diode;
32: wiring substrate;
33: positioning unit;
34: driving circuit;
40: heat insulating component;
41: casing;
42: heat insulating coating;
43: light inlet window;
50: surge absorption circuit;
51: the 1 surge absorbing unit;
52: the 2 surge absorbing unit;
53: the 3 surge absorbing unit;
60: light source monitors control circuit;
61: the light-emitting diode observation circuit;
62: LED control circuit;
63: transmission information is read portion;
64: relay;
64a: drive division;
64b: relay tip;
C: cond;
ML: baried type sign lamp device;
Pc: fixing resin layer;
V: rheostat;
ZD: Zener diode
The specific embodiment
Below with reference to diagram example of the present invention is described.
Fig. 1 identifies the lamp device to the airport of conduct the 1st example that Figure 6 shows that baried type sign lamp device of the present invention with baried type, Fig. 1 is a planar view, Fig. 2 is the expansion cross sectional drawing along the II-II ' line of Fig. 1, Fig. 3 is used to illustrate the circuit block diagram of several airports with the bright lamp mode of series connection of baried type sign lamp device, Fig. 4 is the expansion cross sectional drawing of light source and heat insulating component, Fig. 5 is the circuit diagram of bright circuit for lamp of light-emitting diode and surge absorption circuit, and Fig. 6 monitors the circuit block diagram of control circuit for light source.In this example, the airport monitors that by sign lamp main body 10, input terminal 20, light source 30, heat insulating component 40, surge absorption circuit 50 and light source control circuit 60 constitutes with baried type sign lamp ML.And, the airport with baried type sign lamp ML as shown in Figure 3, utilize make several ML1, ML2 ..., MLn is connected in series and moved by the bright lamp mode of series connection of constant current source of AC CCR power supply.
＜sign lamp main body 10〉sign lamp main bodys 10 comprise metallic lamp body 10A and pedestal 10B.
(metallic lamp body 10A) metallic lamp body 10A is made of top lamp body 11 and bottom lamp body 12, and portion is formed with inner space 10a within it.Top lamp body 11 has protrusion 11a in the above, photoconduction goes out ditch 11b and light projector window 11c.Protrusion 11a forms the truncated cone shape that the circular cone inclined-plane by the flat top of circle and the surrounding edge from end face to top lamp body 11 constitutes in central authorities, and is separated out on top lamp body 11.Photoconduction goes out ditch 11b in Fig. 1, and make its a pair of center that is arranged on top lamp body 11 is on the point-symmetric position at center with being differed from one another.In addition, photoconduction goes out ditch 11b and can be provided with according to its required number.And photoconduction goes out ditch 11b and form opening on the frustoconical inclined-plane of protrusion 11a, and is communicated with the inner space 10a of metallic lamp body 10A.Light projector window 11c is arranged on the interconnecting part of inner space 10a that photoconduction goes out ditch 11b and lamp body 10.Light projector window 11c portion within it fixedly installs prism with the close state of liquid.
And, as shown in Figure 1,, be formed with and be used for several bolt insertion holes 10b that this lamp body 10A is fixed by pedestal 10B described later (not shown) in the surrounding edge portion of metallic lamp body 10A.In addition, metallic lamp body 10A carries out top lamp body 11 and bottom lamp body 12 combination with Screw and forms one in its underpart surrounding edge portion.
Bottom lamp body 12 forms plate-likes, though do not illustrate, is connected with pedestal and is provided with the input terminal that is used to obtain power supply.In addition, also has the mount pad 12a that is used to install light source 30 described later and heat insulating component 40 at inner face.
(pedestal 10B) pedestal 10B forms plate-like, and has the supporting peripheral tier 110b of portion at open end.And pedestal 10B is embedded among the roadbed R in the formed depressed part r by fixing resin layer pc, and makes the distribution cable in the pipe arrangement of being buried underground in the not shown part be directed to inside.The 110b of peripheral tier portion supports the surrounding edge of metallic lamp body 10A.Whereby, make metallic lamp body 10A be embedded in certain position.And, be provided with and distribution cable bonded assembly power patch panel (not shown) in the inside of pedestal 10B.
＜input terminal 20〉input terminal 20 is as Fig. 5 and shown in Figure 6, constitutes by a pair of constant current input terminal 21,22.A pair of constant current input terminal 21,22 is outstanding downwards from the bottom surface of the bottom lamp body 12 of metallic lamp body 10A, and when metallic lamp body 10A is installed in the certain position of pedestal 10B, is inserted in pedestal 10B and goes up set not shown power patch panel and be connected in series with constant-current supply.
＜light source 30〉light source 30 is as Fig. 2 and shown in Figure 4, constitutes by several light-emitting diodes 31, wiring substrate 32, positioning unit 33 and driving circuit 34.Several light-emitting diodes 31 are shell shape, are aligned to the plane of wiring substrate 32 and use.Wiring substrate 32 is installed in several light-emitting diodes 31 on the one side.Positioning unit 33 is made of aluminium block relative with light-emitting diode 31 and that form several inserting holes, and positions by several light-emitting diodes 31 being inserted in inserting holes.And positioning unit 33 has also been brought into play acting on the another side that driving circuit 34 is set at wiring substrate 32 of cooling vessel in example, several light-emitting diodes 31 are driven.
＜heat insulating component 40〉heat insulating component 40 is made of casing 41, heat insulating coating 42 and light inlet window 43, and light source 30 is carried out thermal insulation surround.Casing 41 is made of metal, synthetic resin etc., has opening in front.Heat insulating coating 42 is made of thermal insulating material, and covers the inner face of casing 41.Light inlet window 43 is made of adiathermancy transparent bodies such as alkali glass and acrylic resins, and is installed in the opening part of casing 41.And, make the luminous of light source 30 to the outside.
＜surge absorption circuit 50〉surge absorption circuit 50 as shown in Figure 5, constitute by the 1st to the 3rd surge absorbing unit 51～53.The the 1st and the 2nd surge absorbing unit 51,52 is connected between a pair of constant current input terminal 21,22 and metallic lamp body 10A of input terminal 20.The 3rd surge absorbing unit 53 is connected between a pair of constant current input terminal 21,22.And, the 1st～the 3rd surge absorbing unit 51～53, its any one all by cond C and rheostat V and column circuits constitute.
In addition, in Fig. 5,34 is the driving circuit that is made of bridge rectifier circuit, and 31 is several light-emitting diodes that are connected in series between the mouth of driving circuit, and any one all is the inscape of light source 30.
＜light source monitors control circuit 60〉light source supervision control circuit 60 reads portion 63 by light-emitting diode observation circuit 61, LED control circuit 62, transmission information and relay 64 constitutes.The operating state of several light-emitting diodes 31 of 61 pairs of light sources 30 of light-emitting diode observation circuit monitors, and its monitor message is input to LED control circuit 62.LED control circuit 62 is arranged between input terminal 20 and the light source 30, light source 30 is carried out switch and brightness adjustment control, and the monitor message that light-emitting diode observation circuit 61 is sent and the action message of light source 30 are converted to electric wireline and transmit signal, carry out electric wireline and transmit to omitting graphic long-range supervision control center.Transmission information is read portion 63 and is read the control signal that is transmitted by electric wireline from monitoring control center, and transmits control signal to LED control circuit 62, and relay 64 is resetted.Relay 64 comprises drive division 64a and relay tip 64b.The asserts signal that drive division 64a utilizes LED control circuit 62 to be sent is set connection, and 21,22 of a pair of constant current input terminals that relay tip 64b is connected input terminal 20 carry out on the short circuited position.And the reset signal of utilizing transmission information reading part 63 to be sent is reset, and relay tip 64b is disconnected.
Below, the action of the baried type of this example sign lamp device is described.
When constituting several light-emitting diode 31 bright lamps of light source 30, it is luminous to utilize the prism installed on the light projector window 11c and as required by light harvesting, and throws to the outside as the sign light with certain light distribution characteristic from light projector window 11c, identifies action.
1. (action when arriving from the surge voltage of input terminal 20) is when the surge voltage from input terminal 20 arrives, the the 1st and the 2nd surge absorbing unit 51,52 forms ground connection via metallic lamp body 10A with ground, and the 3rd surge absorbing unit 53 is connected in parallel with light source 30, so the 1st to the 3rd surge absorbing unit 51～53 can suitably move, this surge voltage is absorbed.Therefore, light-emitting diode 31 is protected and avoids the influence of surge voltage, so be difficult to destroyed.
2. (action when the temperature in the inner space 10a of metallic lamp body 10A rises)
(to the supervision control of the light-emitting diode 31 of light source 30) constitute the action shape portion of several light-emitting diodes 31 of light source 30, can utilize light source to monitor that control circuit 60 monitors incessantly.That is, when the light-emitting diode more than the some 31 was turned off the light, light-emitting diode observation circuit 61 detected this situation, and via the long-range supervision control center of LED control circuit 62 contacts.Monitoring control center, when monitoring that the light-off of person liable with light source 30 utilizes electric wireline to transmit to indicate, transmission information is read portion 63 and this is discerned and controls LED control circuit 62.LED control circuit 62 receives the drive division 64a of this signal and operational relay 64, thereby relay tip 64b is connected, with light source 30 short circuits.Whereby, make light source 30 comprise sound light-emitting diode 31 in the bright lamp, all turn off the light.Therefore, can discern the baried type sign lamp ML that has turned off the light at the scene like a cork, repair so can promptly carry out correspondence.After repairing end, be used to transmit control from the electric wireline that monitors control center, read portion 63 when relay 64 is resetted via transmission information, relay 64 is disconnected once more, the short-circuit condition of light source 30 is disengaged, and returns to normal condition thereby complete repairs and make baried type identify lamp ML.
The airport that Figure 7 shows that conduct the 2nd example of baried type sign lamp device of the present invention identifies the bright circuit for lamp of light-emitting diode of lamp device and the circuit diagram of surge absorption circuit with baried type.In this example, because of leading portion at constant current input terminal 21,22, make the constant current AC supply voltage be applied in relation on the baried type sign lamp device ML by rectification as vdc, the 1st to the 3rd surge absorbing unit 51～53 is made of the circuit parallel of cond C and Zener diode (Zener diode) ZD.
As utilize the present invention, can provide a kind of is connected and is arranged at surge absorption circuit in the metallic lamp body by having the metallic lamp body of ground terminal with sign lamp main body, strengthen aspect the stress of the surge voltage that light-emitting diode produced because of thunderbolt etc. in reply and make, and constitute simple, and under the situation with the light source that constitutes by several light-emitting diodes, the baried type sign lamp device that the problem of utilization aspect is enhanced.
As utilize the present invention, can provide a kind of by in sign lamp main body, being equipped with the heat insulating component that the light source that light-emitting diode constituted is surrounded, even thereby be set under the harsh environment of temperature conditions, also can make light-emitting diode produce the roughly sign light of certain luminous intensity, and under situation with the light source that constitutes by several light-emitting diodes, the baried type sign lamp device that the problem of utilization aspect is enhanced.
As utilize the present invention, can provide a kind of is that some in several light-emitting diodes is when turning off the light by having in sign lamp main body set light source, detect this situation and make light source monitor control circuit the light source of power supply short circuit, thereby when the light-emitting diode more than some is turned off the light, light-emitting diode is all turned off the light, carry out its corresponding repairing like a cork, and under situation with the light source that constitutes by several light-emitting diodes, the baried type sign lamp device that the problem of utilization aspect is enhanced.
Claims (3)
1. a baried type sign lamp device is characterized in that, comprising:
Have the metallic lamp body and be embedded in sign lamp main body in the roadbed;
Set input terminal on sign lamp main body;
By the light source that constitutes in the metallic lamp body that is arranged at sign lamp main body and with several light-emitting diodes of input terminal bonded assembly; And
Be arranged in the metallic lamp body and make ground terminal and metallic lamp body bonded assembly surge absorption circuit for absorbing the surge that enters from input terminal;
Wherein these several baried type sign lamp devices and constant current source of AC are connected in series.
2. baried type as claimed in claim 1 sign lamp device is characterized in that: have heat insulating component, in sign lamp main body to surrounding by the light source that light-emitting diode constituted.
3. baried type sign lamp device as claimed in claim 1 or 2, it is characterized in that: have light source and monitor control circuit, when the some in sign lamp main body in several light-emitting diodes of set light source is turned off the light, detect this situation and make light source power supply short circuit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003188266 | 2003-06-30 | ||
| JP2003188266A JP2005026001A (en) | 2003-06-30 | 2003-06-30 | Embedded beacon light device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1576682A true CN1576682A (en) | 2005-02-09 |
| CN100489376C CN100489376C (en) | 2009-05-20 |
Family
ID=34186859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100594896A Expired - Fee Related CN100489376C (en) | 2003-06-30 | 2004-06-28 | Embedded sign light device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2005026001A (en) |
| CN (1) | CN100489376C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537772A (en) * | 2010-12-30 | 2012-07-04 | 海洋王照明科技股份有限公司 | Embedded double light emitting navigation aid lamp |
| CN102595744A (en) * | 2011-01-10 | 2012-07-18 | 快捷韩国半导体有限公司 | Light emitting diode emitting device |
| CN103185218A (en) * | 2011-12-28 | 2013-07-03 | 海洋王照明科技股份有限公司 | Lamp |
| TWI425869B (en) * | 2008-12-31 | 2014-02-01 | Chi Mei Lighting Tech Corp | Illumination device |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4707611B2 (en) * | 2006-06-09 | 2011-06-22 | Ｄｘアンテナ株式会社 | Waterproof cover structure for electronic equipment |
| KR100982719B1 (en) | 2008-05-08 | 2010-09-17 | 박정규 | Lighting structure for pavement |
| US8358056B2 (en) * | 2008-10-16 | 2013-01-22 | Kumho Electric Inc. | LED fluorescent lamp |
| CN102217415B (en) * | 2008-11-13 | 2014-08-27 | 皇家飞利浦电子股份有限公司 | Lighting system with a plurality of leds |
| JP5384964B2 (en) * | 2008-11-25 | 2014-01-08 | ローム株式会社 | LED lighting device |
| JP5970268B2 (en) * | 2012-07-06 | 2016-08-17 | 株式会社日立ハイテクノロジーズ | Plasma processing apparatus and processing method |
| CN108449832A (en) * | 2018-03-23 | 2018-08-24 | 佛山德仁照明科技有限公司 | A kind of high performance lED power supply |
| JP7118796B2 (en) | 2018-08-01 | 2022-08-16 | 株式会社小糸製作所 | lamp |
-
2003
- 2003-06-30 JP JP2003188266A patent/JP2005026001A/en not_active Withdrawn
-
2004
- 2004-06-28 CN CNB2004100594896A patent/CN100489376C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI425869B (en) * | 2008-12-31 | 2014-02-01 | Chi Mei Lighting Tech Corp | Illumination device |
| CN102537772A (en) * | 2010-12-30 | 2012-07-04 | 海洋王照明科技股份有限公司 | Embedded double light emitting navigation aid lamp |
| CN102537772B (en) * | 2010-12-30 | 2014-03-12 | 海洋王照明科技股份有限公司 | Embedded double light emitting navigation aid lamp |
| CN102595744A (en) * | 2011-01-10 | 2012-07-18 | 快捷韩国半导体有限公司 | Light emitting diode emitting device |
| CN103185218A (en) * | 2011-12-28 | 2013-07-03 | 海洋王照明科技股份有限公司 | Lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100489376C (en) | 2009-05-20 |
| JP2005026001A (en) | 2005-01-27 |
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Granted publication date: 20090520 Termination date: 20110628 |