CN110440179B - Double-reflection characteristic distributed cross light guide system - Google Patents
Double-reflection characteristic distributed cross light guide system Download PDFInfo
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- CN110440179B CN110440179B CN201910714722.6A CN201910714722A CN110440179B CN 110440179 B CN110440179 B CN 110440179B CN 201910714722 A CN201910714722 A CN 201910714722A CN 110440179 B CN110440179 B CN 110440179B
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
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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)
- Planar Illumination Modules (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a double-reflection characteristic distributed cross light guide system, which comprises a light source plate, a radiator, a double-reflection characteristic light guide device and a spring clamp, wherein the light source plate is fixed on the radiator through the spring clamp; the double-reflection-characteristic light guide device comprises a plurality of reflection cavities distributed in an array mode, the reflection cavities are concave cavities, a plurality of light outlet holes communicated with the light source plate for light emitting of the light source are formed in the walls of the reflection cavities, light guide curved surfaces of light source emergent light are formed on the inner walls of the reflection cavities, different reflection characteristics are configured on the light guide curved surfaces, the shapes of the light guide surfaces are changed, and different light distribution requirements can be met. The invention avoids the problems of serious light attenuation caused by dust absorption and yellowing of the PC lens and low light efficiency caused by low light transmittance.
Description
Technical Field
The invention relates to a light guide system, in particular to a double-reflection characteristic distributed cross light guide system for a lighting lamp, and belongs to the technical field of lighting.
Background
At present, modular PC lenses are generally adopted for illumination of garden lamps and street lamps to refract light distribution so as to meet the requirement of road illumination, and the PC lenses refract light distribution to have the following problems:
the PC lens is exposed to the outside and is easy to be polluted by dust and oil stain, the PC or PMMA material is easy to age and yellow, the light attenuation is aggravated by the two factors, and the light flux maintenance rate is seriously reduced, so that the road lighting effect is influenced.
The PC lens has a light transmittance of about 90% and a serious light loss. When the requirement on high luminous efficiency is severe, the luminous efficiency is improved more and more insignificantly by adjusting and improving in a conventional mode, and the luminous efficiency is improved still and immovable when meeting a bottleneck.
Disclosure of Invention
The invention aims to solve the technical problem of providing a double-reflection characteristic distributed cross light guide system, which does not adopt a PC lens to refract light distribution, and avoids the problems of serious light attenuation caused by dust absorption and yellowing of the lens and low light efficiency caused by low light transmittance.
In order to solve the technical problem, the technical scheme adopted by the invention is as follows: a double-reflection characteristic distributed cross light guide system comprises a light source plate, a radiator, a double-reflection characteristic light guide device and a spring clamp, wherein the light source plate is fixed on the radiator through the spring clamp; the double-reflection characteristic light guide comprises a plurality of reflection cavities distributed in an array, each reflection cavity is a concave cavity, a plurality of light outlet holes communicated with a light source plate for light source light outlet are formed in the wall of each reflection cavity, the inner wall of each reflection cavity forms a light guide curved surface of light source emergent light, each light guide curved surface is a specular reflection surface and/or a diffuse reflection surface, the light reflection of the mirror surface follows formula 1, the light intensity distribution of the diffuse reflection surface follows formula 2, and formula 1 and formula 2 respectively:
Furthermore, the light reflecting cavity is a trapezoidal cavity, one bottom surface of the trapezoidal cavity is opened to serve as a light emitting surface, light emitting holes are formed in the other bottom surface of the trapezoidal cavity and a group of opposite side surfaces of the trapezoidal cavity, a light guide cylinder communicated with the light emitting holes is arranged on the side surface provided with the light emitting holes, and the light guide curved surfaces are four side surfaces of the trapezoidal cavity and the inner wall of the light guide cylinder.
Furthermore, the light-emitting holes on the bottom surface of the light-reflecting cavity are horizontally arranged, the light-emitting holes on the pair of side surfaces are obliquely arranged, and the light reflected by the light-reflecting cavity is emitted in a three-way cross manner.
Further, the light source board is including putting the light source board horizontally and putting the light source board to one side, and the level is put the light source board level and is fixed on the radiator, puts the light source board to one side and fixes on the radiator, all is equipped with multiunit LED light source on putting the light source board horizontally and putting the light source board to one side, and the LED light source of putting on the light source board horizontally is just to the light-emitting hole on the reflection of light chamber bottom surface, and the LED light source of putting on the light source board to one side is just to the light-emitting hole on.
Furthermore, the spring card is W-shaped, the W-shaped spring card comprises a flat pressing mechanism, an inclined top mechanism and a barb mechanism, the flat pressing mechanism is located at the bottom of the W-shaped spring card, the inclined top mechanism and the barb mechanism are combined together to form an inclined top barb pair, the inclined top barb pair is provided with two groups which are respectively connected to two ends of the flat pressing mechanism, the flat pressing mechanism is used for fixing the flat light source plate, and the inclined top barb pair is used for fixing the inclined light source plate.
Furthermore, the flat pressing mechanism comprises 2 flat pressing surfaces and mounting surfaces, the mounting surfaces are in transition connection with the flat pressing surfaces through inclined surfaces respectively, bolt holes are formed in the mounting surfaces, and the flat pressing mechanism is fixed above the flat light source through bolts; the top pressing mechanism comprises a top pressing elastic sheet and a transition elastic sheet I, the top pressing elastic sheet is connected with the mounting surface of the flat pressing mechanism through the transition elastic sheet I, the top pressing elastic sheet I presses on the opposite surface of the inclined light source plate and the radiator mounting surface, the barb mechanism comprises a barb sheet and a transition elastic sheet II, the barb sheet is connected with the mounting surface of the flat pressing mechanism through the transition elastic sheet II, the barb sheet is buckled above the inclined light source plate, a strip-shaped groove is formed in the transition elastic sheet II, and the top pressing elastic sheet and the transition elastic sheet I are located in the strip-shaped groove.
Furthermore, the light reflecting cavities are arranged in a rectangular array on the double-reflection-characteristic light guide.
Furthermore, a circle of groove used for coating glass cement is formed above the radiator cavity, and the protective glass arranged above the double-reflection-characteristic light guide is firmly bonded and sealed through the glass cement.
Furthermore, safety clamps for hooking the protective glass are arranged on two sides of the radiator.
Furthermore, a waterproof connector is arranged at the position, used for penetrating the electric wire, of the radiator.
Furthermore, a respirator for balancing the air pressure difference between the light source cavity and the atmosphere is arranged on the radiator.
The invention has the beneficial effects that: the light guide system utilizes the double-reflection characteristic light guide to perform mirror reflection and diffuse reflection on emergent light of a light source, the double-reflection characteristic of the mirror surface and the diffuse reflection surface avoids serious light attenuation caused by dust absorption and yellowing of a lens, the reflectivity of the double-reflection characteristic light guide is more than 97%, the efficiency is far higher than that of a PC lens, the bottleneck of improving the light efficiency is skipped, and the energy-saving effect is obvious.
Drawings
FIG. 1 is a schematic view of a whole lamp with the light guide system;
FIG. 2 is a schematic view of the whole lamp carrying the light guide system;
FIG. 3 is an exploded view of the entire lamp carrying the light guide system;
FIG. 4 is a schematic structural view of a reflective chamber;
FIG. 5 is a schematic view of a W-shaped spring plate;
FIG. 6 is a schematic view of a W-shaped spring plate fixing a light source plate;
FIG. 7 is a light distribution graph of example 1;
FIG. 8 is a light intensity chart of example 1;
FIG. 9 is an illuminance chart of example 1;
in the figure: 1. protective glass, 2, two reflection characteristic light guide, 3, light source board, 4, spring card, 5, the circuit board, 6, the radiator, 7, the safety clip, 8, the respirator, 9, water joint, 21, the light-emitting hole, 22, left leaded light face, 23, left leaded light section of thick bamboo, 24, back leaded light face, 25, right leaded light section of thick bamboo, 26, right leaded light face, 27, preceding plain noodles, 41, the concora crush face, 42, the inclined plane, 43, installation face, 44, the bolt hole, 45, the roof pressure shell fragment, 46, transition shell fragment I, 47, the barb piece, 48, transition shell fragment II, 49, the bar groove, 410, the bolt, 31, the flat board that puts, 32, the oblique light source board.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
Example 1
The embodiment discloses a double-reflection characteristic distributed light guide system, which can be used for lighting lamps, such as yard lamps or street lamps, and as shown in fig. 1, 2 and 3, the whole lamp carrying the light guide system comprises a protective glass 1, a double-reflection characteristic light guide 2, a light source plate 3, a spring clip 4, a circuit board 5, a radiator 6, a safety clip 7, a respirator 8 and a waterproof joint 9. Radiator 6 includes a cavity and is located the fin outside the cavity, the cavity is exactly the light source chamber of whole lamp, light source board 3, spring card 4, circuit board 5, two reflection characteristic light guide 2 all set up in the light source intracavity, light source board 3 is fixed through spring card 4, two reflection characteristic light guide 2 install on light source board 3, it has the round recess that is used for scribbling glass to glue to open the top of radiator cavity, cover glass 1 sets up in two reflection characteristic light guide 2 tops, glue the bonding firmly and seal by the glass in the radiator recess. In this embodiment, protective glass 1 is toughened glass, and the higher authority is printed with printing ink, can play the effect of sheltering from, makes the LED module succinct, pleasing to the eye. The safety clamps 7 are fastened on two sides of the radiator 6 through bolts and used for hooking the toughened glass 1 and preventing the toughened glass 1 from falling to hurt people when the glass cement fails for some reasons. The waterproof connector 9 is provided at a position of the heat sink 6 for passing the electric wire therethrough, for waterproofing the electric wire when it is introduced into the heat sink. The respirator 8 is arranged on the wall of the light source cavity of the radiator 6 and is used for balancing the air pressure difference between the light source cavity and the atmosphere. Otherwise, after the LED module emits light and heats for a period of time, the LED module extinguishes and cools, and the light source cavity forms negative pressure and absorbs moisture and steam in a sealed weak link.
As shown in fig. 1 and 4, the double-reflection-characteristic light guide 2 includes a plurality of light-reflecting cavities arranged in a rectangular array, the light-reflecting cavities are concave cavities, a plurality of light-emitting holes 21 communicated with the light source plate 3 for emitting light from the light source are formed in the wall of the light-reflecting cavity, the inner wall of the light-reflecting cavity forms a light-guiding curved surface of the light-source emergent light, the light-guiding curved surface is a specular reflection surface and/or a diffuse reflection surface, according to snell's law of refraction, the light reflection of the mirror surface follows formula 1, the light intensity distribution of the diffuse reflection surface follows formula 2, and formula 1 and formula 2 respectively:
As shown in fig. 4, in this embodiment, the reflective cavity is a trapezoidal cavity, one bottom surface of the trapezoidal cavity is opened to serve as a light emitting surface, the other bottom surface of the trapezoidal cavity, the left light guiding surface 22 and the right light guiding surface 26 are provided with a light outlet 21, the left light guiding surface 22 is provided with a left light guiding cylinder 23 communicated with the light outlet 21, the right light guiding surface 26 is provided with a right light guiding cylinder 25 communicated with the light outlet 21, and the light guiding curved surfaces are four side surfaces (a front light guiding surface 27, the left light guiding surface 22, a rear light guiding surface 24 and the right light guiding surface 26) of the trapezoidal cavity and inner walls of the light guiding cylinders 23 and 25.
In this embodiment, the surface of the light guide 2 with double reflection characteristics is vacuum aluminized, the reflectivity is greater than 97%, and the light extraction efficiency is much higher than that of a PC lens. The light outlet holes 21 on the bottom surface of the reflecting cavity are horizontally arranged, the light outlet holes 21 on the left light guide surface 22 and the right light guide surface 26 are obliquely arranged, and the light reflected by the reflecting cavity is emitted in a three-way cross manner. Different reflection characteristics (mirror reflection or diffuse reflection) are configured on each light guide curved surface of the light reflection cavity, the shape of the light guide surface is changed, and different light distribution requirements can be met. In this embodiment, the left and right light guide tubes 23 and 25 and the front and rear light guide surfaces 27 and 24 are specularly reflected, the left and right light guide surfaces 22 and 26 are diffusely reflected, and the curved surface positions are adjusted by simulation calculation to realize a light intensity distribution curve in this state as shown in fig. 7, a light intensity distribution curve in this state as shown in fig. 8, a light intensity distribution curve in this state as shown in fig. 9, and an illuminance distribution curve in this state. Compared with an LED light source light distribution curve without a light guide system, the light guide system has the advantages that the light distribution angle is pulled away towards the road direction and deviates towards the transverse direction of the road, the energy is redistributed, and the requirement of road light distribution is met. Compared with a PC lens, the double-reflection light guide system has stronger light beam capacity and higher light energy utilization rate.
As shown in fig. 6, the light source board 3 includes a flat light source board 31 and an inclined light source board 32, the flat light source board 31 is horizontally fixed on the heat sink 6, the inclined light source board 32 is obliquely fixed on the heat sink 6, a plurality of LED light sources are respectively disposed on the flat light source board 31 and the inclined light source board 32, the LED light sources on the flat light source board 31 are opposite to the light emitting holes 21 on the bottom surface of the reflective cavity, and the LED light sources on the inclined light source board 32 are opposite to the light emitting holes 21 on the side surface of the reflective cavity.
As shown in fig. 5, the spring clip 4 is W-shaped, the W-shaped spring clip includes a flat pressing mechanism, an inclined top mechanism and a barb mechanism, the flat pressing mechanism is located at the bottom of the W-shaped spring clip, the inclined top mechanism and the barb mechanism are combined together to form an inclined top barb pair, two inclined top barb pairs are provided and are respectively connected to two ends of the flat pressing mechanism, the flat pressing mechanism is used for fixing the flat light source board 31, and the inclined top barb pair is used for fixing the inclined light source board 32.
Specifically, the flat pressing mechanism comprises flat pressing surfaces 41 and mounting surfaces 43, wherein the number of the mounting surfaces 43 is 2, the mounting surfaces 43 are in transition connection with the flat pressing surfaces 41 through inclined surfaces 42 respectively, bolt holes 44 are formed in the mounting surfaces 43, and the flat pressing mechanism is fixed above the flat light source 31 through bolts 410; the inclined ejection mechanism comprises an ejection elastic sheet 45 and a transition elastic sheet I46, the ejection elastic sheet 45 is connected with an installation surface 43 of the flat pressing mechanism through a transition elastic sheet I46, the ejection elastic sheet I45 is pressed on the opposite surface of the installation surface of the inclined light source plate 32 and the radiator 6, the barb mechanism comprises a barb sheet 47 and a transition elastic sheet II48, the barb sheet 47 is connected with the installation surface 43 of the flat pressing mechanism through a transition elastic sheet II48, the barb sheet 47 is buckled above the inclined light source plate 32, a strip-shaped groove 49 is formed in the transition elastic sheet II48, and the ejection elastic sheet 45 and the transition elastic sheet I46 are located in the strip-shaped groove 49.
As shown in fig. 6, when the light source board 3 is fixed by the W-shaped spring clip 4, the light source board 3 is first placed in a notch in the waterproof heat sink 6, and the W-shaped spring clip 4 is fastened by a bolt 400. In the process of fastening the bolt 410, the flat pressing mechanism of the W-shaped multipurpose spring clip 4 elastically deforms first to press the flat light source plate 31 tightly. Then the inclined pushing mechanism generates elastic deformation, and the pushing elastic sheet 45 pushes the inclined light source plate 32 tightly. Finally, the barb mechanism is elastically deformed, and the barb piece 47 buckles the inclined light source plate 32, so that the inclined light source plate 32 is prevented from sliding out in the transportation and use processes.
In this embodiment, the W-shaped spring clip 4 is formed by metal punch forming or plastic injection molding, the heat sink 6 is formed by die-cast aluminum alloy, die-cast magnesium alloy, cold-forged magnesium alloy or cold-forged aluminum alloy, and the safety clip 7 is formed by aluminum or stainless steel punch forming.
The light guide system utilizes the double-reflection characteristic light guide to perform mirror reflection and diffuse reflection on light source emergent light, the double-reflection characteristic of the mirror surface and the diffuse reflection surface avoids serious light attenuation caused by dust absorption and yellowing of the lens, the reflectivity of the double-reflection characteristic light guide is larger than 97%, the efficiency is far higher than that of a PC lens, the bottleneck of light effect improvement is skipped, and the energy-saving effect is obvious.
The above-described embodiments of the invention are intended to be illustrative only and are not intended to be limiting, as all changes that come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (8)
1. A double-reflection characteristic distributed cross light guide system is characterized in that: comprises a light source plate, a radiator,
The light source board is fixed on the radiator through the spring clip, and the double reflection characteristic
The sexual light guide is arranged on the light source plate and used for performing diffuse reflection and specular reflection on light emitted by the light source plate;
the double-reflection-characteristic light guide comprises a plurality of reflection cavities distributed in an array manner, wherein the reflection cavities are concave cavities
The wall of the reflecting cavity is provided with a plurality of light holes communicated with the light source plate for the light source to emit light, and the inner wall of the reflecting cavity is shaped
A light guide curved surface for forming light source emergent light, wherein the light guide curved surface is a mirror reflection surface and a diffuse reflection surface, and the light reflection of the mirror surface
The reflection follows equation 1, the light intensity distribution of the diffuse reflection surface follows equation 2, and equation 1 and equation 2 are respectively:
2. A dual reflectance property distributed cross light guide system as claimed in claim 1, wherein: the light source board is including putting the light source board horizontally and putting the light source board to one side, and the level is put the light source board level and is fixed on the radiator, puts the light source board slope to one side and fixes on the radiator, puts flatly all to be equipped with multiunit LED light source on light source board and the light source board of putting to one side, and the LED light source of putting on the light source board to one side is just to the light-emitting hole on the reflection of light chamber bottom surface, and the LED light source of putting on the light source board to one side is just.
3. A dual reflectance property distributed cross light guide system as claimed in claim 2, wherein: the spring card is W-shaped, the W-shaped spring card comprises a flat pressing mechanism, an inclined ejection mechanism and a barb mechanism, the flat pressing mechanism is located at the bottom of the W-shaped spring card, the inclined ejection mechanism and the barb mechanism are combined together to form an inclined ejection barb pair, the inclined ejection barb pair is provided with two groups which are respectively connected to two ends of the flat pressing mechanism, the flat pressing mechanism is used for fixing a flat light source plate, and the inclined ejection barb pair is used for fixing an inclined light source plate.
4. A double reflection property distributed intersecting light guiding system as defined in claim 3 wherein: the flat pressing mechanism comprises 2 flat pressing surfaces and mounting surfaces, the mounting surfaces are in transition connection with the flat pressing surfaces through inclined surfaces respectively, bolt holes are formed in the mounting surfaces, and the flat pressing mechanism is fixed above the flat light source plate through bolts; the top pressing mechanism comprises a top pressing elastic sheet and a transition elastic sheet I, the top pressing elastic sheet is connected with the mounting surface of the flat pressing mechanism through the transition elastic sheet I, the top pressing elastic sheet I presses on the opposite surface of the inclined light source plate and the radiator mounting surface, the barb mechanism comprises a barb sheet and a transition elastic sheet II, the barb sheet is connected with the mounting surface of the flat pressing mechanism through the transition elastic sheet II, the barb sheet is buckled above the inclined light source plate, a strip-shaped groove is formed in the transition elastic sheet II, and the top pressing elastic sheet and the transition elastic sheet I are located in the strip-shaped groove.
5. A dual reflectance property distributed cross light guide system as claimed in claim 1, wherein: a circle of groove used for coating glass cement is formed above the cavity of the radiator, and the protective glass arranged above the double-reflection-characteristic light guide is firmly bonded and sealed through the glass cement.
6. The double reflection property distributed intersecting light guiding system of claim 5, wherein: safety clamps for hooking the protective glass are arranged on two sides of the radiator.
7. A dual reflectance property distributed cross light guide system as claimed in claim 1, wherein: the position of the radiator for penetrating the electric wire is provided with a waterproof joint.
8. A dual reflectance property distributed cross light guide system as claimed in claim 1, wherein: the radiator is provided with a respirator for balancing the air pressure difference between the light source cavity and the atmosphere.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910714722.6A CN110440179B (en) | 2019-08-02 | 2019-08-02 | Double-reflection characteristic distributed cross light guide system |
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| CN201910714722.6A CN110440179B (en) | 2019-08-02 | 2019-08-02 | Double-reflection characteristic distributed cross light guide system |
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| CN119224915A (en) * | 2024-12-03 | 2024-12-31 | 济南三星照明科技股份有限公司 | An anti-glare multiple reflection high-efficiency light guide system |
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Address after: No. 8111, Erhuan North Road, Tianqiao District, Jinan City, Shandong Province Patentee after: Jinan Samsung Lighting Technology Co.,Ltd. Address before: No. 8111, Erhuan North Road, Tianqiao District, Jinan City, Shandong Province Patentee before: JINAN SANXING LIGHTING Co.,Ltd. |
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Denomination of invention: Distributed cross guiding light system with dual reflection characteristics Effective date of registration: 20230925 Granted publication date: 20210518 Pledgee: Overpass Branch of Jinan Rural Commercial Bank Co.,Ltd. Pledgor: Jinan Samsung Lighting Technology Co.,Ltd. Registration number: Y2023980058311 |