CN104154473A - Shadowless LED lighting system for classroom - Google Patents
Shadowless LED lighting system for classroom Download PDFInfo
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- CN104154473A CN104154473A CN201410368296.2A CN201410368296A CN104154473A CN 104154473 A CN104154473 A CN 104154473A CN 201410368296 A CN201410368296 A CN 201410368296A CN 104154473 A CN104154473 A CN 104154473A
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- classroom
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Abstract
The invention relates to a shadowless LED lighting system for a classroom and belongs to the technical field of LED lighting. The shadowless LED lighting system comprises the classroom, a plurality of LED lamps are mounted on a ceiling of the classroom and are double-sided lighting LED lamps, and the double-sided lighting LED lamps are distributed on the ceiling of the classroom annularly. Each double-sided lighting LED lamp comprises a PC (poly carbonate) diffuser cover and a sector heat radiator which are mutually fastened, wherein the cross section of the sector heat radiator is of a sector structure. The outer surfaces formed by two radiuses of each sector heat radiator are two LED light source mounting surfaces, a first aluminum substrate is arranged on the first LED light source mounting surface, and a second aluminum substrate is mounted on the second LED light source mounting surface. A row of first LED light sources is mounted on each first aluminum substrate along the length direction, two rows of parallel second LED light sources are mounted on each second aluminum substrate along the length direction, the first LED light sources irradiate perpendicularly downwardly, and the second LED light sources irradiate the annular center. No shadow of objects is generated within a key lighting area, so that shadowless lighting is realized.
Description
Technical field
The present invention relates to a kind of classroom illuminator without shadow LED, belong to LED lighting technical field.
Background technology
As LED fluorescent lamp, compare conventional fluorescent fluorescent lamp, there is high light efficiency, energy-conservation, the features such as long service life, the decline of cost in recent years, accepted by most of people, uniformity of luminance and brightness uniformity also increase, but everyone feels different to fluorescent lamp, therefore require also different to colour temperature, to being arranged on the fluorescent lamp of the interior space because of the reason of quantity and height, illumination requirement is also different, fluorescent lamp is as a kind of strip-shaped light source in addition, equally with other light source can after object, stay a next shadow, light source is more, shadow is just more mixed and disorderly.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: a kind of classroom illuminator without shadow LED is provided, and it is simple in structure, illuminating effect is obvious, in crucial field of illumination, do not have object and stay shadow generation, thereby reach the object without shadow, consume energy low simultaneously.
Classroom of the present invention illuminator without shadow LED, comprise classroom, several LED lamps are installed on the ceiling in classroom, it is characterized in that: LED lamp is double-side formula LED lamp, on the ceiling of double-side formula LED lamp in classroom, be the ring-like distribution of many groups, single double-side formula LED lamp comprises the PC diffusion shell of mutual fastening and the fan type radiator that cross section is sector structure, the outer surface that two radiuses of fan type radiator form is two LED light source installed surfaces, on first LED light source installed surface, be provided with the first aluminium base, corresponding the first aluminium base on first LED light source installed surface, be provided with two cooperatively interact for the guide-track groove of square type structure of the first aluminium base is installed, the first aluminium base is arranged in guide-track groove, on second LED light source installed surface, be provided with the second aluminium base, corresponding the second aluminium base on second LED light source installed surface, be provided with two cooperatively interact for the guide-track groove of square type structure of the second aluminium base is installed, on the length direction of the first aluminium base, be provided with one and ranked first LED light source, the second LED light source that two rows are arranged in parallel is installed on the length direction of the second aluminium base, the first LED light source irradiates vertically downward, the second LED light source is understood without being told and is penetrated to ring, on the length direction of fan type radiator, be provided with installation screwed hole, on two end faces after PC diffusion shell and fan type radiator fastening, cover has end cap, on end cap, offer and the end cap screwed hole of screwed hole being installed being matched, on the end face of end cap, be provided with metal electrode and louvre.
The meaning that the concentric ring type structure of described many groups distributes forms multiple rings by multiple double-side formula LED lamps, and the ring heart of each ring is concentric.For example: form respectively a large ring and a little ring by multiple double-side formula LED lamps, large ring is concentric with little ring.
In order to ensure integral illumination effect and installation effect, the cross section outer surface after preferred described PC diffusion shell and fan type radiator fasten is round structure.
In order to improve radiating effect, extend service life of the present invention, the corresponding fan type of preferred described louvre radiator is offered.
Further in order to ensure radiating effect, be conducive to the installation of drive control power supply simultaneously, preferred described fan type radiator is hollow structure, is provided with bimodal radiating piece second LED light source installed surface inner side, and the distance between peak valley and the summit of bimodal radiating piece is between 0.9mm ~ 1.2mm.
Further, in order to play the effect of auxiliary heat dissipation, on first LED light source installed surface between described the first aluminium base and the fan profile of fan type radiator, be provided with unimodal radiating piece.
The same, on second LED light source installed surface between described the second aluminium base and the fan profile of fan type radiator, be provided with the T-shaped radiating piece of T-shaped structure.
In order to play the effect that structure is attractive in appearance in guaranteeing heat radiation, described unimodal radiating piece and the height of T-shaped radiating piece and the height of guide-track groove are consistent.
Angle between further preferred described two the LED light source installed surfaces of the present invention is 110 degree ~ 130 degree.Such angle is conducive to coordinate the realization without shadow technical scheme.
Convenient processing in order to ensure heat radiation time, described louvre diameter is 1.8mm ~ 2.2mm.
Of the present invention without shadow effect and the variation of convenient illumination colour temperature in order further to guarantee, described the first LED light source and the second LED light source are colour temperature tunable light source.
In order to ensure shadowless lighting effect of the present invention, described two array pitch of arranging between the second LED light source being arranged in parallel are 2.0mm ~ 2.5mm.
Compared with prior art, the present invention has following beneficial effect:
By classroom of the present invention illuminator without shadow LED, it is simple in structure, double-side formula LED lamp due to what adopt, and on the ceiling of double-side formula LED lamp in classroom, be the ring-like distribution of many groups, so its illuminating effect is obvious, in crucial field of illumination, do not have object and stay shadow generation, thereby reach the object of shadowless lighting, consume energy low simultaneously.
Brief description of the drawings
Fig. 1 be religion indoor LED illuminating lamp without shadow arrangement schematic diagram;
Fig. 2 is the horizontal section structural representation of double-side formula LED lamp;
Fig. 3 is the end face structure schematic diagram of end cap;
Fig. 4 is the first LED light source distributed architecture schematic diagram on the first aluminium base;
Fig. 5 is the second LED light source distributed architecture schematic diagram on the second aluminium base;
Fig. 6 is the driving control flow chart of double-side formula LED lamp.
In figure: 1, double-side formula LED lamp 1.1, PC diffusion shell 1.2, the second LED light source 1.3, the second aluminium base 1.4, T-shaped radiating piece 1.5, installation screwed hole 1.6, fan type radiator 1.7, bimodal radiating piece 1.8, unimodal radiating piece 1.9, the first aluminium base 1.10, the first LED light source 1.11, guide-track groove 1.12, metal electrode 1.13, end cap 1.14, end cap screwed hole 1.15, louvre 2, classroom.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further:
Below the invention will be further described by specific embodiment, but not in order to limit the present invention, all within the present invention's spirit and principle, any amendment of doing, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Embodiment mono-
Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, classroom illuminator without shadow LED, comprise classroom 2, several LED lamps are installed on the ceiling in classroom 2, LED lamp is double-side formula LED lamp 1, on the ceiling of double-side formula LED lamp 1 in classroom 2, being the concentric ring type structure of many groups distributes, single double-side formula LED lamp 1 comprises the PC diffusion shell 1.1 of mutual fastening and the fan type radiator 1.6 that cross section is sector structure, the outer surface that two radiuses of fan type radiator 1.6 form is two LED light source installed surfaces, on first LED light source installed surface, be provided with the first aluminium base 1.9, corresponding the first aluminium base 1.9 on first LED light source installed surface, be provided with two cooperatively interact for the guide-track groove 1.11 of square type structure of the first aluminium base 1.9 is installed, the first aluminium base 1.9 is arranged in guide-track groove 1.11, on second LED light source installed surface, be provided with the second aluminium base 1.3, corresponding the second aluminium base 1.3 on second LED light source installed surface, be provided with two cooperatively interact for the guide-track groove 1.11 of square type structure of the second aluminium base 1.3 is installed, on the length direction of the first aluminium base 1.9, be provided with one and ranked first LED light source 1.10, the second LED light source 1.2 that two rows are arranged in parallel is installed on the length direction of the second aluminium base 1.3, the first LED light source 1.10 irradiates vertically downward, the second LED light source 1.2 is understood without being told and is penetrated to ring, on the length direction of fan type radiator 1.6, be provided with screwed hole 1.5 is installed, on two end faces after PC diffusion shell 1.1 and fan type radiator 1.6 fastenings, cover has end cap 1.13, on end cap 1.13, offer and the end cap screwed hole 1.14 of screwed hole 1.5 being installed being matched, on the end face of end cap 1.13, be provided with metal electrode 1.12 and louvre 1.15.
In the present embodiment, the cross section outer surface after described PC diffusion shell 1.1 and fan type radiator 1.6 fasten is round structure; The corresponding fan type of described louvre 1.15 radiator 1.6 is offered; Described fan type radiator 1.6 is hollow structure, is provided with bimodal radiating piece 1.7 second LED light source installed surface inner side, and the distance between peak valley and the summit of bimodal radiating piece 1.7 is between 0.9mm; On first LED light source installed surface between described the first aluminium base 1.9 and the fan profile of fan type radiator 1.6, be provided with unimodal radiating piece 1.8; On second LED light source installed surface between described the second aluminium base 1.3 and the fan profile of fan type radiator 1.6, be provided with the T-shaped radiating piece 1.4 of T-shaped structure; Angle between described two LED light source installed surfaces is 110 degree; Described louvre 1.15 diameters are 1.8mm; Described the first LED light source 1.10 and the second LED light source 1.2 are colour temperature tunable light source; Described two array pitch of arranging between the second LED light source 1.2 being arranged in parallel are 2.0mm.
The present embodiment as shown in Figure 4, the first LED light source 1.10 is alternately arranged successively by low colour temperature LED light source and high color temperature LED light source, and be a word and evenly arrange, the cross central line of the first LED light source 1.10 is positioned at the first aluminium base 1.9 transversal centerline places and offsets downward the position of 1.6mm ~ 2.2mm, can reach so the middle luminous object of entirety, and can improve light mixing effect, and the uniformity of brightness, the present embodiment preferably offsets downward 1.6mm.
As shown in Figure 5, the first row of the second LED light source 1.2 is alternately arranged successively by low colour temperature LED light source, high color temperature LED light source, second row is replaced and arranges successively by high color temperature LED light source, low colour temperature LED light source, and the object of doing like this can reach good light mixing effect, and whole lamp color temperature is consistent.The first row light source of the second LED light source 1.2 is between 1.8mm ~ 2.2mm apart from the second aluminium base 1.3 edge beelines, the preferred 1.8mm of the present embodiment.
Described in the present embodiment, the degree of depth of guide-track groove 1.11 is 0.5mm ~ 0.8mm, its width is 0.8mm ~ 1.2mm, arrange like this and can allow the first aluminium base 1.9 and the second aluminium base 1.3 well carry out spacing by guide-track groove 1.11, and in interference fits state, easy disassembly, and be conducive to heat to be derived from both sides and bottom.
The effect of end cap 1.13 be by spacing to PC diffusion shell 1.1 and fan type radiator 1.6 become an entirety.End cap 1.13 adopts the material identical with PC diffusion shell 1.1, can transmission LED light, and allow the two ends also can printing opacity, thereby further cooperation be without the generation of shadow effect.
As shown in Fig. 2, Fig. 6, the driving power of the first LED light source 1.10 and the second LED light source 1.2 and control circuit are all built in the cavity of fan type radiator 1.6.Now simply introduce in conjunction with Fig. 2, Fig. 6: wireless data transmitter is independently, not in LED lamp, so that transmit control signal and parameters.When inputting by civil power and provide power supply to data decode processing section after anti-interference process, enter duty, in the time that wireless controller sends wireless signal, the wireless signal sending is through receive data by wireless, data decode contrasts with the data that are stored in data storage after processing, learn the operational order carrying out, if the size of the electric current of the pre-output 1 of constant current and the pre-output 2 of constant current is controlled respectively in brilliance control instruction by Current Control 1 and Current Control 2.If separately brightness regulation instruction, only controls the size of a certain road constant current output electric current, in the parameter after adjusting is stored in again in data storage, when ensureing to start, system can read these data parameters, recovers last state next time.If colour temperature control instruction, send two groups of identical high-frequency PWM signals by data decode processing section, FREQUENCY CONTROL at 200KHz between 400KHz, one group is decomposed into forward constant current output one and reverse constant current output one, another group is decomposed into forward constant current and goes out two and anti-phase constant current output two, the pwm signal of these the two groups same frequencys that all output polarity is contrary, the LED light source that is connected to high color temperature of positive polarity, the LED light source that is connected to low colour temperature of reversed polarity, control respectively LED light source and the low LED light source of colour temperature that colour temperature is high, low colour temperature LED light source colour temperature is controlled between 2500K ~ 3500K, high color temperature LED light source colour temperature is controlled between 6000K ~ 7000K.By different dutycycles is set, just guarantee that colour temperature changes between 2500K ~ 7000K.Other one group also adopts same control signal, guarantees that the colour temperature of whole LED fluorescent lamp is consistent.Because whole LED fluorescent lamp has electric current at any time by no matter being to flow to which one group of LED light source, so light or continuous, therefore giving people's eyes is a kind of good sensations.Below mainly solved and how to have guaranteed that two groups of light sources are independently when degree of lightening, the problem that colour temperature is consistent, makes LED fluorescent lamp entirety colour temperature consistent.
When installation, the first LED light source 1.10 is thrown light on as direct bearing, irradiate vertically downward, the second LED light source 1.2 throws light on as side coil, and irradiate to ring heart direction, in the time of the interior distribution in classroom 2, as shown in Figure 1, because LED lamp forms a circle by a close installation that connects, ring LED lamp in forming; Again by LED lamp by one immediately the installation of form another circle, form outer shroud LED lamp; Interior ring LED lamp and outer shroud LED lamp are all arranged in the same center of circle, the installing space of interior ring LED lamp and outer shroud LED lamp is between 1 meter to 3 meters, adopt outer shroud and the concentric scheme of interior ring, it is luminous discontinuous for making up the end to end place of LED lamp doing like this, the discontinuous light source by interior ring of light source of outer shroud makes up, the discontinuous light source by outer shroud of light source of interior ring makes up, and finally realizes without shadow or alleviates the effect without shadow.Yuan center near zone, irradiates because light source had light source at one week, and shadow is below alleviated or eliminated by light source above, and the shadow of front area light source is alleviated or eliminated by light source below.The shadow on the same left side is alleviated or is eliminated by the light source on the left side, and the shadow on the right is alleviated or eliminated by the light source on the right.Because light source is circle distribution, and continuously, therefore can cancel out each other at the shadow of all directions generation people or object, therefore can't see shadow, finally realize the effect without shadow, in the region away from Nei Huan center, the shadow of object is likely eliminated to such an extent that be not fine, therefore in conjunction with the colour temperature intednsity circuit of LED lamp inside, the brightness of the first LED light source 1.10 and the second LED light source 1.2 is regulated, alleviate without this effect of shadow, when control, can regulate separately the brightness of a LED lamp, also circle can be divided into several deciles and carry out local modulation, also can carry out integrally-regulated to colour temperature simultaneously, can certainly regulate the light-source brightness on top aluminium base 1 separately, so just can realize without shadow effect in a certain position.
In sum, pass through the present embodiment, can carry out integrally-regulated to the colour temperature of the first LED light source 1.10 and the second LED light source 1.2, and keep stable always, and support direct bearing, the isoparametric LED lamp of side potential energy independence brightness adjusting, for improve stability and service life corresponding LED lamp radiating effect also had further raising, reach the object of shadowless lighting simultaneously.
Embodiment bis-
On the basis of embodiment mono-, change, the distance between the peak valley of described bimodal radiating piece 1.7 and summit is become to 1mm; Angle between described two LED light source installed surfaces becomes 120 degree; Described louvre 1.15 diameters become 1.9mm; Described two array pitch of arranging between the second LED light source 1.2 being arranged in parallel become 2.2mm; The cross central line of described the first LED light source 1.10 is positioned at the first aluminium base 1.9 transversal centerline places and offsets downward the position of 1.6mm; The degree of depth of described guide-track groove 1.11 becomes 0.5mm, and its width becomes 0.9mm.Other is with embodiment mono-.
Embodiment tri-
On the basis of embodiment mono-, change, the distance between the peak valley of described bimodal radiating piece 1.7 and summit is become to 1.1mm; Angle between described two LED light source installed surfaces becomes 125 degree; Described louvre 1.15 diameters become 2.1mm; Described two array pitch of arranging between the second LED light source 1.2 being arranged in parallel become 2.4mm; The cross central line of described the first LED light source 1.10 is positioned at the first aluminium base 1.9 transversal centerline places and offsets downward the position of 2mm; The degree of depth of described guide-track groove 1.11 becomes 0.7mm, and its width becomes 1.1mm.Other is with embodiment mono-.
Embodiment tetra-
On the basis of embodiment mono-, change, the distance between the peak valley of described bimodal radiating piece 1.7 and summit is become to 1.2mm; Angle between described two LED light source installed surfaces becomes 130 degree; Described louvre 1.15 diameters become 2.2mm; Described two array pitch of arranging between the second LED light source 1.2 being arranged in parallel become 2.5mm; The cross central line of described the first LED light source 1.10 is positioned at the first aluminium base 1.9 transversal centerline places and offsets downward the position of 2.2mm; The degree of depth of described guide-track groove 1.11 becomes 0.8mm, and its width becomes 1.2mm.Other is with embodiment mono-.
More than show and described general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (10)
1. classroom illuminator without shadow LED, comprise classroom (2), on ceiling in classroom (2), several LED lamps are installed, it is characterized in that: LED lamp is double-side formula LED lamp (1), on the ceiling of double-side formula LED lamp (1) in classroom (2), being the concentric ring type structure of many groups distributes, single double-side formula LED lamp (1) comprises the PC diffusion shell (1.1) of mutual fastening and the fan type radiator (1.6) that cross section is sector structure, the outer surface that two radiuses of fan type radiator (1.6) form is two LED light source installed surfaces, on first LED light source installed surface, be provided with the first aluminium base (1.9), corresponding the first aluminium base (1.9) on first LED light source installed surface, be provided with two cooperatively interact for the guide-track groove (1.11) of square type structure of the first aluminium base (1.9) is installed, the first aluminium base (1.9) is arranged in guide-track groove (1.11), on second LED light source installed surface, be provided with the second aluminium base (1.3), corresponding the second aluminium base (1.3) on second LED light source installed surface, be provided with two cooperatively interact for the guide-track groove (1.11) of square type structure of the second aluminium base (1.3) is installed, on the length direction of the first aluminium base (1.9), be provided with one and ranked first LED light source (1.10), the second LED light source (1.2) that two rows are arranged in parallel is installed on the length direction of the second aluminium base (1.3), the first LED light source (1.10) irradiates vertically downward, the second LED light source (1.2) is understood without being told and is penetrated to ring, on the length direction of fan type radiator (1.6), be provided with screwed hole (1.5) is installed, on two end faces after PC diffusion shell (1.1) and fan type radiator (1.6) fastening, cover has end cap (1.13), on end cap (1.13), offer and the end cap screwed hole (1.14) of screwed hole (1.5) being installed being matched, on the end face of end cap (1.13), be provided with metal electrode (1.12) and louvre (1.15).
2. classroom according to claim 1 illuminator without shadow LED, is characterized in that: the cross section outer surface after described PC diffusion shell (1.1) and fan type radiator (1.6) fasten is round structure.
3. classroom according to claim 1 and 2 illuminator without shadow LED, is characterized in that: described louvre (1.15) corresponding fan type radiator (1.6) is offered.
4. classroom according to claim 3 illuminator without shadow LED, it is characterized in that: described fan type radiator (1.6) is hollow structure, be provided with bimodal radiating piece (1.7) second LED light source installed surface inner side, the distance between peak valley and the summit of bimodal radiating piece (1.7) is between 0.9mm ~ 1.2mm.
5. classroom according to claim 4 illuminator without shadow LED, is characterized in that: on first LED light source installed surface between described the first aluminium base (1.9) and the fan profile of fan type radiator (1.6), be provided with unimodal radiating piece (1.8).
6. classroom according to claim 5 illuminator without shadow LED, is characterized in that: the T-shaped radiating piece (1.4) that is provided with T-shaped structure on second LED light source installed surface between described the second aluminium base (1.3) and the fan profile of fan type radiator (1.6).
7. classroom according to claim 5 illuminator without shadow LED, is characterized in that: the angle between described two LED light source installed surfaces is 110 degree ~ 130 degree.
8. classroom according to claim 1 illuminator without shadow LED, is characterized in that: described louvre (1.15) diameter is 1.8mm ~ 2.2mm.
9. classroom according to claim 1 illuminator without shadow LED, is characterized in that: described the first LED light source (1.10) and the second LED light source (1.2) are colour temperature tunable light source.
10. classroom according to claim 1 illuminator without shadow LED, is characterized in that: described two array pitch of arranging between the second LED light source (1.2) being arranged in parallel are 2.0mm ~ 2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368296.2A CN104154473A (en) | 2014-07-30 | 2014-07-30 | Shadowless LED lighting system for classroom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368296.2A CN104154473A (en) | 2014-07-30 | 2014-07-30 | Shadowless LED lighting system for classroom |
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| CN104154473A true CN104154473A (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410368296.2A Pending CN104154473A (en) | 2014-07-30 | 2014-07-30 | Shadowless LED lighting system for classroom |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104565138A (en) * | 2014-12-19 | 2015-04-29 | 方盛车桥（柳州）有限公司 | Annular reinforced composite braking drum |
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