CN101520143A - Led street lamp - Google Patents
Led street lamp Download PDFInfo
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- CN101520143A CN101520143A CN200810082702A CN200810082702A CN101520143A CN 101520143 A CN101520143 A CN 101520143A CN 200810082702 A CN200810082702 A CN 200810082702A CN 200810082702 A CN200810082702 A CN 200810082702A CN 101520143 A CN101520143 A CN 101520143A
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- led
- luminescence unit
- light
- led luminescence
- street lamp
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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
- F21S8/08—Lighting devices intended for fixed installation with a standard
- F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
- F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
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- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
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- 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
- F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
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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
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
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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)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to an LED street lamp applied to roadways, tunnels and other places where the requirement on illumination uniformity is higher. The LED street lamp comprises a light distribution system, a heat sink, a lamp body, a driving circuit and a light fixture installation adjusting mechanism; LED luminescence units are installed on one side of the light distribution system; the axial direction of each LED luminescence unit points at each zone of an object; the LED street lamp is also provided with an optimal optical system required by street illumination light distribution; power supply is controlled by the driving circuit in a shunt control way after the LED luminescence units are connected in series and in parallel; the heat sink is arranged on the other side of the light distribution system, thereby each LED luminescence unit can be ensured to be operated under normal temperature; and by installing the adjusting mechanism and a horizontal alignment device, the problem of ray offset as the position of the light fixture is not in place during the installation of the light fixture can be overcome.
Description
Technical field
The present invention relates to a kind of street lamp of lighting field, particularly relate to the LED street lamp that needs large tracts of land, illuminance and the illuminance uniformitys such as a kind of suitable major trunk roads, subsidiary road are all had relatively high expectations.It is to utilize the one side of light distributing system that the LED luminescence unit is installed, each LED luminescence unit axis direction points to each zone of illumination target, and optical system with the desired the best of road lighting luminous intensity distribution, control power supply along separate routes by drive circuit after several luminescence unit connection in series-parallel, the another side of light distributing system is provided with radiator, guarantee that each LED luminescence unit works under normal temperature, the uneven problem of photometric distribution that the position inaccuracy causes in the time of can overcoming by the light fixture construction and installation by installing and adjusting mechanism, and become a kind of new design that quite has practicality and progressive, be suitable for the industrial circle wide popularization and application.
Background technology
Though it is long that the LED street lamp that is occurred at present has a life-span than conventional lamp, photochromic characteristics such as good, but under same street lamp arrangement condition, but can not reach requirement for the desired illuminance of road lighting and the luminous intensity distribution uniformity, disclosed these light fixtures of Chinese patent (patent No. 200520062069.3 or 200510112612.0 or 20071002565.X) for example, adopted one or more LED unit more, by simple array arrangement light is throwed away, but have with the parallel photograph of a kind of led light source of optical characteristics to a certain direction or when zone, can cause regional area brightness too high, both influenced the effect of the even illumination on the road, and light source had been emitted beam utilized efficiently.Because street lamp is when mounted to height, spacing, inclination angle, and road effective width etc. has the certain limit requirement, in addition because present most roads lights all are mounted near the highway sideline, the light that requires light fixture to send covers whole road surface, and within around the road 5 meters, provide a local lighting, the disclosed light fixture of above-mentioned Chinese patent (patent No. 200520062069.3 or 200510112612.0 or 20071002565.X) does not take into full account the characteristics of the required luminous intensity distribution of road illuminating lamp, makes the whole uniformity descend.
This shows that above-mentioned existing LED street lamp obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem that the LED street lamp exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found the LED street lamp that the big and irradiation light of a kind of irradiated area evenly meets the new structure of road surface luminous intensity distribution characteristics, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Because the defective that above-mentioned existing LED street lamp exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of LED street lamp of new structure, can improve general existing LED street lamp, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective that existing LED street lamp exists, and provide a kind of LED street lamp of new structure, technical problem to be solved is to street lamp lamp installation quantity, highly, power, average illumination, these parameters such as the overall uniformity have this problem that requires of comparison harshness, make it give full play to the characteristics of the directed luminous and power controlled of led light source, make corresponding adjustment according to the variation of condition of road surface, illuminate the road surface effectively, reach even light distribution, under the condition of the illumination level that satisfies the road lighting requirement and the uniformity, can reduce the power of LED street lamp total consumption.Thereby be suitable for practicality more, and have the value on the industry.
The object of the invention to solve the technical problems realizes by the following technical solutions.LED street lamp according to the present invention proposes comprises light distributing system, heat abstractor, lamp body, drive circuit, lamp installation guiding mechanism.Wherein, light distributing system is fixed on the lamp body, and drive circuit is installed in the cavity of lamp body, connects the LED luminescence unit of light distributing system by lead.Each LED luminescence unit of wherein said light distributing system is respectively according to the point on each zone, road surface, and each LED luminescence unit on the corresponding LED light distributing system of each incidence point.According to distance and the incident angle of LED luminescence unit to incidence point, determine optical axial direction, luminous intensity and the lighting angle scope of each LED luminescence unit, the light that incides each pocket forms distance light district, intermediate light district, dipped beam district, corresponding with it LED luminescence unit is formed several lighting modules by incidence angle degree and luminous intensity, be fixed on the corresponding position of light distributing system, make each LED luminescence unit have the optical system of the desired the best of road lighting luminous intensity distribution.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
It is 5 °-40 ° that aforesaid LED street lamp, wherein said light distributing system have the angle between the central shaft of three LED luminescence units and the adjacent separately LED luminescence unit central shaft at least.
Aforesaid LED street lamp has the LED luminescence unit that comprises that three kinds of luminous intensities and corresponding beam angle constitute at least in the wherein said light distributing system.
The object of the invention to solve the technical problems also realizes by the following technical solutions.LED street lamp according to the present invention's proposition, have at least in the wherein said light distributing system two LED luminescence units respectively towards the light fixture both sides along the road longitudinal direction, and, has a LED luminescence unit in the light distributing system at least towards being to shine near the millet cake under the light fixture from the nearest zone, road surface of this light fixture towards on this light fixture distance zone, road surface farthest, shining.
The object of the invention to solve the technical problems also realizes by the following technical solutions.According to the LED street lamp that the present invention proposes, wherein said light distributing system have at least two LED luminescence units respectively towards the light fixture both sides along the road longitudinal direction, on the zone line of road surface, shine.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.Aforesaid LED street lamp, wherein said is 15 °-40 ° towards its central axis of LED luminescence unit that shines on this light fixture distance zone, road surface farthest and the angle on road surface, luminous intensity is maximum in all LED luminescence units; Described towards being that near shine the millet cake under the light fixture its central axis of LED luminescence unit and the angle of irradiated plane are 55 °-90 ° from the nearest zone, road surface of light fixture, luminous intensity is minimum in all LED luminescence units.
Aforesaid LED street lamp, wherein said respectively towards the light fixture both sides along the road longitudinal direction, the LED luminescence unit that shines on the zone line of road surface, the angle on its central axis and road surface is 40 °-55 °, luminous intensity is medium in all LED luminescence units.
The object of the invention to solve the technical problems also realizes in addition by the following technical solutions.According to the LED street lamp that the present invention proposes, the one side that aforesaid light distributing system is used for fixing the LED luminescence unit is provided with reflector, and reflector and LED luminescence unit opposite position place are provided with perforate.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid LED street lamp, wherein said light distributing system bright dipping actinal surface is provided with transparent curved surface or plane diffuser.
The object of the invention to solve the technical problems realizes in addition more by the following technical solutions.According to the LED street lamp that the present invention proposes, the back side of wherein said light distributing system is provided with heat abstractor.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The back side that aforesaid LED street lamp, the radiating module that wherein said heat abstractor is arranged to separate are installed in light distributing system respectively with LED luminescence unit opposite position.
Aforesaid LED street lamp, wherein said heat abstractor and light distributing system cast solid.
Aforesaid a kind of LED street lamp is provided with the heat radiation spiracle on the wherein said light distributing system.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid LED street lamp, wherein said drive circuit have three road independent, constant current output, control LED luminescence units separately respectively at least.
Aforesaid LED street lamp, wherein said drive circuit is by after receiving illuminance signal or time signal or other control signal, and the automatic switch power supply is controlled power output.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid LED street lamp, wherein said lamp body is provided with installing and adjusting mechanism, and the adjustment by Lamp holder 51 and mounting pipe fixed position makes the elevation angle of light fixture relative exposure face be-15 °-+15 °.Mounting pipe is fixed on the optional position in the mount pad as required, to obtain the different irradiation elevations angle.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid LED street lamp, wherein said lamp body top are provided with the spirit level platform of determining the lamp installation inclination angle.
Via as can be known above-mentioned, the invention discloses a kind of road that illumination uniformity is had relatively high expectations, the LED light fixture that occasions such as tunnel are used, it is by light distributing system, heat abstractor, lamp body, drive circuit, the lamp installation guiding mechanism constitutes, the one side of light distributing system is installed the LED luminescence unit, each LED luminescence unit axis direction points to each zone of illumination target, and optical system with the desired the best of road lighting luminous intensity distribution, control power supply along separate routes by drive circuit after several luminescence unit connection in series-parallel, the another side of light distributing system is provided with radiator, guarantee that each LED luminescence unit works the uneven problem of photometric distribution that the position inaccuracy causes in the time of can overcoming by the light fixture construction and installation by installing and adjusting mechanism under normal temperature.
LED street lamp according to the present invention proposes in order to satisfy road lighting degree and uniformity requirement, needs a kind of LED light distributing system of design.The zone of needs illumination is divided into the plurality of small blocks zone, each pocket configures light center incidence point, each LED luminescence unit on the corresponding LED light distributing system of each incidence point, according to distance and the incident angle of LED luminescence unit to incidence point, determine the optical axial direction of each LED luminescence unit, luminous intensity and lighting angle scope, the light that incides each pocket forms the distance light district, the intermediate light district, the dipped beam district, corresponding with it LED luminescence unit is formed several lighting modules by incidence angle degree and luminous intensity, be fixed on the corresponding position of light distributing system, distance light district incident angle is generally between 50 °-75 °, intermediate light district incident angle is generally between 35 °-50 °, generally between 0 °-35 °, the mutual ratios of the LED luminescence unit largest light intensity of irradiation zones of different is about 2 times for dipped beam district incident angle.
Described LED road lamp light distribution system, be adapted in the multiple road lighting environment, division by existing category of roads and road lighting relevant regulations, the road surface is divided into greatly according to bright area size, in, little three kinds, the incidence angle of each LED luminescence unit of light distributing system and incidence point can change within the specific limits according to the irradiated area size, in above-mentioned angular range, adjust, form the same as described above light zone, since want irradiated area generation variation, variation has also been taken place in needed overall light flux, as long as the corresponding power that reduces each LED luminescence unit, just reduced total light flux, but its light distribution characteristics can not change, and the LED road lamp light distribution system just can be suitable for the different kinds of roads illumination like this.
Aforesaid light distributing system is placed on the installation frame of lamp body, the bright dipping actinal surface is sealed by curved surface or plane diffuser, the radiator at light distributing system back is directly to extraneous distribute heat, because the LED luminescence unit has directed emitting characteristics, road effective width of using and installing space can be different, a lamp installation guiding mechanism is set on lamp body, can controls the scope that the illumination of LED street lamp covers so well, and can eliminate because the phenomenon of the light skew that causes not in place is installed.
In order to reduce the consumption of light fixture total energy, can in drive circuit, add control signal according to factors such as traffic density, period, surround lightings, LED luminescence unit of the present invention is controlled by drive circuit after by the lead connection in series-parallel, and output current is adjusted by control signal within the specific limits.Owing to adopted above-mentioned light distributing system, in same highway section, when lighting requirement reduced, by reducing input power, output current can reduce thereupon, and LED luminescence unit luminous flux just reduces, and overall energy consumption also can reduce, and illumination uniformity can not reduce.
The present invention compared with prior art has tangible advantage and beneficial effect.By technique scheme, the LED street lamp that the present invention proposes can reach suitable technological progress and practicality, and has the extensive value on the industry, and it has following advantage at least:
1, the LED street lamp that the present invention proposes, utilize the light distributing system of unique design to make each LED luminescence unit irradiation way in zone separately, the light that the LED luminescence unit is sent is invested each zone on illumination road surface, the beam angle and the luminous intensity of all luminescence units of control LED, the light symbol that whole light distributing system sent satisfies the requirement of road lighting, overall uniformity of illuminance is more than 0.4, vertically the uniformity is more than 0.6, thereby can significantly reduce cost, increase economic efficiency, on practicality of using and cost benefit, it is required to meet industry development really fully, quite has industrial utilization.
2, the LED street lamp of the present invention's proposition, distance and quantity according to LED street lamp setting height(from bottom) and lamp locker, can adjust corresponding LED luminescence unit beam angle, incident angle and luminous intensity, concentrated the projecting on the road surface of required illumination of light that the LED luminescence unit sends, improve the effective rate of utilization of light;
3, the LED street lamp of the present invention's proposition is provided with heat abstractor by the another side to mount pad, can solve the heat dissipation problem of led light source;
4, the LED street lamp of the present invention's proposition utilizes the drive circuit of autonomous channel that the LED luminescence unit is exported control, and is controlled to the realization of LED street lamp overall power by outer increase control signal, and do not influence the variation of illumination uniformity;
5, the LED street lamp of the present invention's proposition is provided with the angle-adjusting mechanism when the LED lamp installation, adapts to different street illumination width;
6, the LED street lamp of the present invention's proposition also is provided with the horizontal alignment device when the LED lamp installation, avoids because of the light offset problem that causes not in place is installed.
7, the present invention can reach the effect in the practicality really, and is not only easy to use, do not need miscellaneous formality, and the processing of structure formation is easy especially, meets cost benefit, and has the value on the industry really, is suitable for industrial circle and extensively promotes the use of.
8, structure of the present invention really has more technological progress than existing LED street lamp, and its particular structure feature and function also be far from existing LED street lamp and can compare, and more existing LED street lamp has the multinomial effect of enhancement, and the progress on possessing skills.
9, the present invention is more suitable for practicality in the use, more can meet the demand of user for LED street lamp product, can give the selection of consumer Geng Jia, and can significantly promote its overall efficiency, thereby more be suitable for practicality.
In sum, the LED street lamp of novelty of the present invention has illuminated the road surface effectively, reaches even light distribution, can reduce the power of LED street lamp total consumption under the condition of the illumination level that satisfies the road lighting requirement and the uniformity.The present invention has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on product structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and more existing LED street lamp has the outstanding multinomial effect of enhancement, thereby being suitable for practicality more, and having the extensive value of industry, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the front view of the 1st embodiment;
Fig. 2 is the sectional elevation of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the left side view of Fig. 1;
Fig. 5 is the enlarged drawing of spirit level platform;
Fig. 6 is that luminescence unit is according to the schematic diagram to the road surface;
Fig. 7 is the distribution curve flux figure of first embodiment;
Fig. 8 is the road surface equiluminous figure of first embodiment;
Fig. 9 is the block diagram of drive circuit;
Figure 10 a-10b is the structural representation of second embodiment;
Figure 11 a-11b is the structural representation of the 3rd embodiment;
Figure 12 is the distribution curve flux figure of second and third embodiment;
Figure 13 is the road surface equiluminous figure of second and third embodiment;
Among the figure:
1: light distributing system
11a, 11b, 11c: luminescence unit
1a, 2a, 3a: luminescence unit central axis and road surface angle
12: diffuser
13: reflector 13a: the reflector perforate
2: heat abstractor 21: spiracle
3: lamp body
4: drive circuit
The input of 41 power supplys
411: input 412: filtering
413: rectification 414:PFC
415: filtering 416: photoinduction
417: time-delay regulates 418: Based Intelligent Control
42: piece is touched in constant current
421: piece 422 is touched in constant current: piece is touched in constant current
423: piece 424 is touched in constant current; Constant flow module
The 43:LED unit
431:LED module 432:LED module
433:LED module 434:LED module
5, installing and adjusting mechanism
51, Lamp holder 52: the spirit level platform
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its specific embodiment of LED street lamp, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can be known to present in the following detailed description that cooperates with reference to graphic preferred embodiment.By the explanation of the specific embodiment, when can being to reach technological means that predetermined purpose takes and effect to get one more deeply and concrete understanding to the present invention, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the present invention is limited.
First embodiment
See also Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the LED street lamp of preferable first embodiment of the present invention, it mainly is made up of light distributing system 1, heat abstractor 2, lamp body 3, drive circuit 4, lamp installation guiding mechanism 5, the outer setting heat abstractor 2 of light distributing system 1 (seeing Fig. 2,3,4), in order to reach better radiating effect, heat abstractor 2 and light distributing system 1 cast solid, face shaping can arc or square.The one side of light distributing system is installed the LED luminescence unit, and another side is provided with heat abstractor 2, guarantees that each LED luminescence unit works under normal temperature.Power (as shown in Figure 1, 2) by drive circuit 4 controls after several luminescence unit connection in series-parallel, lamp body 3 is provided with installing and adjusting mechanism 5 (as shown in Figure 1, 2), the uneven problem of photometric distribution that the position inaccuracy causes in the time of can overcoming by the light fixture construction and installation by installing and adjusting mechanism 5.Heat radiation spiracle 21 (as shown in Figure 2) is set near the close lead wire hole on the light distributing system 1.Wherein,
The inner surface of light distributing system 1 is formed by connecting by being a plurality of block solids that distribute, and become left-right symmetry to distribute (as shown in Figure 1) with the center line A-A of light fixture, with center line A-A right half part is example, these block solid surface normal directions certain angle that intermeshes, fixing several different luminous intensities on the face, the LED luminescence unit 11a of different beam angles, 11b, 11c (as shown in Figure 1), make that the central shaft of LED luminescence unit 11 mounted thereto and the angle between the adjacent separately LED luminescence unit central shaft are 5 °-40 °, will make these luminescence units 11a like this, luminescence unit 11b, luminescence unit 11c invests appointed area separately to light.LED luminescence unit 11a has maximum luminous intensity, and 6 luminescence unit 11a are combined into a light band that shines distance light, and their incident angles are between 50 °-75 °, they adjacent being installed together.Same method is 2 light bands with the LED luminescence unit 11b of medium luminous intensity and zone line of LED luminescence unit 11a combination back formation that 2 have maximum emission intensity, their incident angles are between 35 °-50 °, can be between distance light district and the intermediate light district with the LED luminescence unit at 1-2 medium luminous intensity or angle pencil of ray angle as the replenishing of gap, to reach uniform more illuminating effect.For from this light fixture distance zone, adopt 3 light beam angular widths, 2 middle beam angles of LED luminescence unit 11c associating that luminous intensity is little, the LED luminescence unit 11b of medium luminous intensity to shine, at this moment the incident angle of luminescence unit is smaller, can be placed near the center of light distributing system 1, just near the central shaft A-A, their incident angles are between 0 °-35 °.Whole light distributing system 1 structure is attractive in appearance, stressed evenly to be coupled together the block installed surface of a plurality of fixed L ED luminescence units with smooth plane or curved surface in order to make, and forms an inner surface that roughly is the turtle shell dress.LED light fixture of the present invention has the bat wing distribution curve flux that meets road lighting as shown in Figure 7, and Fig. 8 is this light fixture equiluminous distribution map on the road surface when the 10M setting height(from bottom).Fig. 6 is that luminescence unit is according to luminescence unit central axis and road surface angle 1a, luminescence unit central axis and road surface angle 2a, luminescence unit central axis and road surface angle 3a when the road surface.
The LED luminescence unit is formed the 3-4 group after using the lead connection in series-parallel, be connected to drive circuit 4 by the wire hole on the light distributing system 1, as shown in Figure 9, drive circuit 4 has 4 independently outputs, any one group is opened circuit or fault such as short circuit can not have influence on output of other each group, the output current of drive circuit 4 can be controlled by photosignal or clock signal simultaneously, and this plays automatic control function to reducing the output of street lamp power in automatic switch lamp and the certain hour section.Wherein drive circuit 4 comprises power supply input 41 and constant flow module 42, power supply input 41 control constant flow modules 42, constant flow module 42 joins with LED unit 43, wherein, electric current successively through import 411, filtering 412, rectification 413, PFC413, filtering 415 handle after respectively with constant flow module 421, constant flow module 422, constant flow module 423, constant flow module 424 separate connection.Constant flow module 421, constant flow module 422, constant flow module 423, constant flow module 424 are respectively with led module 431, led module 432, led module 433, led module 434 join accordingly in the LED unit 43, photoinduction 416 is regulated 417 with time-delay and is connected with Based Intelligent Control respectively, and is connected with constant flow module 421, constant flow module 422, constant flow module 423, constant flow module 424 respectively.
In order to eliminate the influence of LED luminescence unit veiling glare, improve the light utilization ratio, one side at light distributing system 1 fixed L ED luminescence unit is provided with reflector 13 (see figure 2)s, reflector 13 is provided with perforate 13a (see figure 1) with LED luminescence unit 11a opposite position place, in order to improve the protective capacities to environment of LED luminescence unit, light distributing system 1 bright dipping actinal surface is provided with transparent curved surface diffuser 12 (as Fig. 2, shown in Figure 3) simultaneously.
Light distributing system 1 is placed on the installation frame of lamp body 3, because the LED luminescence unit has directed emitting characteristics, road effective width of using and installing space can be different, the deviation of setting angle can cause the inhomogeneous of road lighting degree, a lamp installation guiding mechanism 5 is set (as Fig. 1 on lamp body 3, shown in 2), by the adjustment (as shown in Figure 2) of Lamp holder 51 with the mounting pipe fixed position, guiding mechanism 5 can be controlled the elevation angle of LED street lamp and the situation that tilts, be placed on the spirit level 52 on lamp body top (as Fig. 2 by observation, shown in 3), make mounting pipe be fixed on optional position in the mount pad as required, just can control the angle of light fixture on all directions to obtain the different irradiation elevations angle, eliminate deviation, make light fixture contrast the elevation angle of the face of establishing, the elevation angle of relative exposure face is-15 °--+15 °.
Above-mentioned is a preferred forms of the present invention, mainly be that lighting requirement according to specific road surface designs the number of LED luminescence unit, the luminous intensity and the beam angle of angulation and each LED luminescence unit each other, so the technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from design of the present invention or surmount the defined scope of appended claims.
Second embodiment
Shown in Figure 10 a-10b, the LED street lamp of preferable second embodiment of the present invention, it constitutes (shown in Figure 10 a) by light distributing system 1, heat abstractor 2, lamp body 3, drive circuit 4, lamp installation guiding mechanism 5.The inner surface of light distributing system 1 is formed by connecting by being a plurality of block solids that distribute, and become left-right symmetry distribution (shown in Figure 10 a) with the center line A-A of light fixture, with center line A-A right half part is example, these block solid surface normal directions certain angle that intermeshes, fix LED luminescence unit 11a, 11b, the 11c of several different luminous intensities, different beam angles on the face, can make these luminescence units 11a, 11b, 11c all light be invested appointed area (shown in Figure 10 a) separately thus.LED luminescence unit 11a has maximum luminous intensity, and 2 luminescence unit 11a are combined into a light band that shines distance light, and their incident angles are between 50 °-75 °, they adjacent being installed together.Same method forms the LED luminescence unit 11c of the LED luminescence unit 11b with 1 medium luminous intensity and 3 minimum luminous intensity combination back the light band of a zone line, their incident angles are between 35 °-50 °, distance light district and intermediate light district can be with the LED luminescence unit at 1-2 medium luminous intensity or angle pencil of ray angle as the replenishing of gap, to reach uniform more illuminating effect.For from this light fixture distance zone, employing light beam angular width, 4 LED luminescence unit 11c that luminous intensity is little shine, at this moment the incident angle of luminescence unit is smaller, can be placed near the center of light distributing system 1, just near the central shaft A-A (shown in Figure 10 b), their incident angles are between 0 °-35 °.Whole light distributing system 1 structure is attractive in appearance, stressed evenly to be coupled together the block installed surface of a plurality of fixed L ED luminescence units with smooth plane or curved surface in order to make, and forms an inner surface that roughly is the turtle shell dress.LED light fixture of the present invention has the bat wing distribution curve flux that meets road lighting as shown in figure 12, Figure 13 is this light fixture equiluminous distribution map on the road surface when the 8M setting height(from bottom), configuration by above-mentioned LED luminous intensity, beam angle, corresponding crevice projection angle just can realize the luminous intensity distribution distribution shown in Figure 12,13.The outer setting heat abstractor 2 of light distributing system 1, in order to reach better radiating effect, heat abstractor 2 and light distributing system 1 cast solid, face shaping can arc or square.The LED luminescence unit is formed the 3-4 group after using the lead connection in series-parallel, be connected to drive circuit 4 by the wire hole on the light distributing system 1, as shown in Figure 9, drive circuit 4 has 3-4 independently to export, any one group is opened circuit or fault such as short circuit can not have influence on output of other each group, the output current of drive circuit 4 can be controlled by photosignal or clock signal simultaneously, and this plays automatic control function to reducing the output of street lamp power in automatic switch lamp and the certain hour section, describes in detail with embodiment 1.
In order to eliminate the influence of LED luminescence unit veiling glare, improve the light utilization ratio, one side at light distributing system 1 fixed L ED luminescence unit is provided with reflector 13, reflector and LED luminescence unit 11a opposite position place are provided with perforate 13a, in order to improve the protective capacities to environment of LED luminescence unit, light distributing system 1 bright dipping actinal surface is provided with transparent curved surface diffuser 12 (shown in Figure 10 a, 10b) simultaneously.
Light distributing system 1 is placed on the installation frame of lamp body 3, because the LED luminescence unit has directed emitting characteristics, road effective width of using and installing space can be different, the deviation of setting angle can cause the inhomogeneous of road lighting degree, a lamp installation guiding mechanism 5 is set on lamp body 1, guiding mechanism 5 can be controlled the elevation angle of LED street lamp and the situation that tilts, be placed on the spirit level 52 on lamp body top by observation, just can control the angle of light fixture on all directions, eliminate deviation (shown in Figure 10 b).
The 3rd embodiment
Shown in Figure 11 a-11b, the LED street lamp of preferable the 3rd embodiment of the present invention, it constitutes (shown in Figure 11 a) by light distributing system 1, heat abstractor 2, lamp body 3, drive circuit 4, lamp installation guiding mechanism 5.The outer setting heat abstractor 2 of light distributing system 1, in order to reach better radiating effect, heat abstractor 2 and light distributing system 1 cast solid, outward appearance is rectangular.The one side of light distributing system is installed the LED luminescence unit, and another side is provided with heat abstractor 2, guarantees that each LED luminescence unit works under normal temperature.By drive circuit 4 control power supplies, lamp body 3 is provided with installing and adjusting mechanism 5, the uneven problem of photometric distribution that the position inaccuracy causes in the time of can overcoming by the light fixture construction and installation by installing and adjusting mechanism 5 after several luminescence unit connection in series-parallel.Heat radiation spiracle 21 (shown in Figure 11 b) is set near the close lead wire hole on the light distributing system 1.The inner surface of light distributing system 1 is a burnishing surface, fixing the substrate that several have differing tilt angles on the face, with respect to light fixture center line A-A left-right symmetry (shown in Figure 11 a), LED luminescence unit 11a, 11b, the 11c of different luminous intensities, beam angle are contained in these independently on the face, can make these luminescence units 11a, 11b, 11c all light be invested appointed area (shown in Figure 11 a, 11b) separately.With center line A-A right half part is example, and 2 LED luminescence unit 11a have maximum luminous intensity, and their incident angles are between 50 °-75 °.The LED luminescence unit 11c combination back of the LED luminescence unit 11b of 1 medium luminous intensity and 3 minimum luminous intensity forms the light band of a zone line, incident angle is between 35 °-50 °, distance light district and intermediate light district can be with the LED luminescence unit at 1-2 medium luminous intensity or angle pencil of ray angle as the replenishing of gap, to reach uniform more illuminating effect.For from this light fixture distance zone, employing light beam angular width, 4 11c of LED luminescence unit that luminous intensity is little shine, at this moment the incident angle of luminescence unit is smaller, can be placed near the center of light distributing system 1, just near the central shaft A-A, their incident angles are between 0 °-35 °.LED light fixture of the present invention has the bat wing distribution curve flux that meets road lighting as shown in figure 12, and Figure 13 is this light fixture equiluminous distribution map on the road surface when the 8M setting height(from bottom).Other structures are with embodiment 1.
The technological innovation of the LED street lamp of the present invention that above-mentioned structure like this constitutes all has many saving graces for technical staff of the same trade now, and the progressive that possesses skills really.
As mentioned above, substantially the one side of utilizing light distributing system that is contemplated that of the present invention is installed the LED luminescence unit, each LED luminescence unit axis direction points to each zone of illumination target, and optical system with the desired the best of road lighting luminous intensity distribution, control power supply along separate routes by drive circuit after several luminescence unit connection in series-parallel, the another side of light distributing system is provided with radiator, guarantee that each LED luminescence unit works the uneven problem of photometric distribution that the position inaccuracy causes in the time of can overcoming by the light fixture construction and installation by installing and adjusting mechanism under normal temperature.But in technical field of the present invention,, can improve other exercisable embodiment of the present invention as long as possess the most basic knowledge.In the present invention substantive technical scheme has been proposed the patent protection request, its protection domain should comprise all variation patterns with above-mentioned technical characterstic.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (16)
1, a kind of LED street lamp, comprise light distributing system (1), heat abstractor (2), lamp body (3), drive circuit (4), lamp installation guiding mechanism (5), wherein, light distributing system (1) is fixed on the lamp body (3), drive circuit (4) is installed in the cavity of lamp body (3), the LED luminescence unit that connects light distributing system (1) by lead, it is characterized in that: each LED luminescence unit of described light distributing system (1) is respectively according to the point on each zone, road surface, and each LED luminescence unit on the corresponding LED light distributing system of each incidence point, according to distance and the incident angle of LED luminescence unit to incidence point, determine the optical axial direction of each LED luminescence unit, luminous intensity and lighting angle scope, the light that incides each pocket forms the distance light district, the intermediate light district, the dipped beam district, corresponding with it LED luminescence unit is formed several lighting modules by incidence angle degree and luminous intensity, be fixed on the corresponding position of light distributing system, make each LED luminescence unit have the optical system of the desired the best of road lighting luminous intensity distribution.
2, LED street lamp according to claim 1 is characterized in that it is 5 °-40 ° that light distributing system (1) has the central shaft of three LED luminescence units (11) and the angle between adjacent separately LED luminescence unit (11) central shaft at least.
3, LED street lamp according to claim 1 is characterized in that having at least in the described light distributing system (1) the LED luminescence unit (11) that comprises that three kinds of luminous intensities and corresponding beam angle constitute.
4, according to any described LED street lamp among the claim 1-3, it is characterized in that having at least in the light distributing system (1) two LED luminescence units (11a) respectively towards the light fixture both sides along the road longitudinal direction, and, has a LED luminescence unit (11c) in the light distributing system (1) at least towards being to shine near the millet cake under the light fixture from the nearest zone, road surface of this light fixture towards on this light fixture distance zone, road surface farthest, shining.
5, according to any described LED street lamp among the claim 1-3, it is characterized in that light distributing system (1) have at least two LED luminescence units (11b) respectively towards the light fixture both sides along the road longitudinal direction, irradiates light on the zone line of road surface.
6, LED street lamp according to claim 4, it is characterized in that described is 15 °-40 ° towards its central axis of LED luminescence unit (11a) that shines on this light fixture distance zone, road surface farthest and the angle on road surface, and luminous intensity is maximum in all LED luminescence units; Described towards being that near shine the millet cake under the light fixture its central axis of LED luminescence unit (11c) and the angle of irradiated plane are 55 °-90 ° from the nearest zone, road surface of light fixture, luminous intensity is minimum in all LED luminescence units.
7, LED street lamp according to claim 5, it is characterized in that above-mentioned respectively towards the light fixture both sides along the road longitudinal direction, its central axis of LED luminescence unit (11b) that shines on the zone line of road surface and the angle on road surface are 40 °-55 °, and luminous intensity is medium in all LED luminescence units.
8, LED street lamp according to claim 1 is characterized in that the one side that described light distributing system (1) is used for fixing the LED luminescence unit is provided with reflector (13), and reflector and LED luminescence unit (11a) opposite position place are provided with perforate (13a).
9, LED street lamp according to claim 1 is characterized in that described light distributing system (1) bright dipping actinal surface is provided with transparent curved surface or plane diffuser (12).
10, LED street lamp according to claim 1 is characterized in that the back side of described light distributing system (1) is provided with heat abstractor (2).
11, LED street lamp according to claim 10, it is characterized in that the back side that radiating module that described heat abstractor (2) is arranged to separate is installed in light distributing system 1 respectively with LED luminescence unit (11) opposite position.
12, LED street lamp according to claim 10 is characterized in that described heat abstractor (2) and light distributing system 1 cast solid.
13,, it is characterized in that being provided with on the described light distributing system (1) heat radiation spiracle (21) according to any described a kind of LED street lamp in claim 10 or 11 or 12.
14, LED street lamp according to claim 1 is characterized in that described drive circuit (4) has three road independent, constant current output, control LED luminescence units separately respectively at least.
15, according to claim 14 kind of LED street lamp is characterized in that described drive circuit (4) by after receiving illuminance signal or time signal or other control signal, automatic switch power supply, control power output.
16, according to the LED street lamp described in the claim 1, it is characterized in that described lamp body (3) is provided with installing and adjusting mechanism (5), adjustment by Lamp holder (51) and mounting pipe fixed position makes the elevation angle of light fixture relative exposure face be-15 °--and+15 °, mounting pipe is fixed on the optional position in the mount pad as required, to obtain the different irradiation elevations angle.
17 LED street lamps according to claim 1 is characterized in that described lamp body (3) top is provided with the spirit level platform (52) of determining the lamp installation inclination angle.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810082702A CN101520143A (en) | 2008-02-27 | 2008-02-27 | Led street lamp |
| PCT/CN2008/001165 WO2009105924A1 (en) | 2008-02-27 | 2008-06-16 | Led road lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810082702A CN101520143A (en) | 2008-02-27 | 2008-02-27 | Led street lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101520143A true CN101520143A (en) | 2009-09-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810082702A Pending CN101520143A (en) | 2008-02-27 | 2008-02-27 | Led street lamp |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101520143A (en) |
| WO (1) | WO2009105924A1 (en) |
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