CN204534247U - There is the LED lamp tube of diffused light lens - Google Patents
There is the LED lamp tube of diffused light lens Download PDFInfo
- Publication number
- CN204534247U CN204534247U CN201520107469.5U CN201520107469U CN204534247U CN 204534247 U CN204534247 U CN 204534247U CN 201520107469 U CN201520107469 U CN 201520107469U CN 204534247 U CN204534247 U CN 204534247U
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- China
- Prior art keywords
- lamp tube
- led lamp
- circuit plate
- lens
- led chip
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Abstract
The utility model provides a kind of LED lamp tube with diffused light lens, and this LED lamp tube comprises cover crystal circuit plate, two or more LED chip and two or more lens body.Cover crystal circuit plate one side surface is provided with two or more metallic conductor.Each LED chip is electrically connected on any two adjacent metallic conductors.Each lens body to be configured on cover crystal circuit plate and to cover each LED chip.Each lens body comprises inverted cone shape groove and lens surface.Inverted cone shape groove also has the bottom of setting corresponding with LED chip, and the height wherein between bottom and cover crystal circuit plate is less than the height between lens surface and cover crystal circuit plate.Effectively reach the effect of diffused light whereby, simultaneously with the advantage reducing LED chip quantity.
Description
Technical field
The utility model about a kind of LED lamp tube, espespecially a kind of LED lamp tube with diffused light lens.
Background technology
In recent years, light emitting diode (Light-Emitting Diode, LED) has the low and characteristic that brightness is enough of power consumption, therefore widely as the lighting device in daily life.Existing LED lamp tube mainly includes fluorescent tube, circuit substrate, LED light module and two conduction end caps.Circuit substrate can depend on connection for LED light module, in conjunction with after insert again in fluorescent tube.When assembling, first LED light module electrically must be welded on circuit substrate, then circuit substrate is placed through in fluorescent tube.Then welding manner is utilized by some wires to be electrically connected at circuit substrate and two conduction end caps.Finally conducting end housing be placed on the two ends of fluorescent tube and be fixed.When the electric power from external power source is by two conductions end cap, wires, under circuit substrate effect, LED light module is made to produce light source and reach illuminating effect.
Usual described LED light module is the one end being arranged at fluorescent tube, when these light emitting diode emission of lights, the intensity of described light, can be the strongest on the direction of the namely light-emitting area of vertical LED in positive view directions, and the maximum rising angle of light is about 60 ~ 120 degree.Therefore plane LED light module export light and uneven, can observe significantly between each light emitting diode local blanking bar, the region that namely light intensity is the most weak.
In order to improve the problem of above-mentioned local blanking bar, the number of light emitting diode can be increased.But this improvement mode will increase plane light-emitting device quantity, cause routing point (wire bonding) quantity too much, cost up, does not commercially have competitiveness.
Utility model content
In view of this, main purpose of the present utility model is to provide a kind of LED lamp tube with diffused light lens, and it effectively can reach the effect of diffused light, and then reduces LED chip quantity.
For achieving the above object, the utility model provides a kind of LED lamp tube of tool diffused light lens, and this LED lamp tube comprises cover crystal circuit plate, two or more LED chip and two or more lens body.Described cover crystal circuit plate one side surface is provided with two or more metallic conductor.Each described LED chip is electrically connected on any two adjacent described metallic conductors.Each described lens body to be configured on described cover crystal circuit plate and to cover each described LED chip.Each described lens body comprises inverted cone shape groove and lens surface.Described inverted cone shape groove also has the bottom of setting corresponding with described LED chip, and the height between wherein said bottom and described cover crystal circuit plate is less than the height between described lens surface and described cover crystal circuit plate.
Preferably, described LED lamp tube also comprises reflecting layer, and this reflecting layer is configured at the side of described cover crystal circuit plate on the surface, and is arranged between described lens body and described cover crystal circuit plate.Each described LED chip comprises fluorescent material, and this fluorescent material can be coated described LED chip surface or distribute in described lens body.
Preferably, each described LED chip also comprises two solder projections, and this solder projection each is electrically connected any two adjacent described metallic conductors respectively.
Preferably, described lens surface becomes curved surface from described inverted cone shape groove two ends consecutive variations, and the two ends that the scope of this curved surface comprises described inverted cone shape groove are connected to the surface of described cover crystal circuit plate always.
Preferably, the both side surface of described inverted cone shape groove is straight line.
Preferably, described LED lamp tube also comprises lampshade and two end caps, and described lampshade can cover the described cover crystal circuit plate through each described LED chip of described lens body encapsulation, and each described end cap is bonded to the two ends of described lampshade respectively.
Preferably, described cover crystal circuit plate section shape is arc, to be combined with described lampshade.
Preferably, the shape of described lens body is in semiellipsoid half-and-half or in cylindrical body half-and-half.
Preferably, the quantity of described LED chip is 21, and each described metallic conductor is Copper Foil or the copper coin material of series connection mutually.
Preferably, described cover crystal circuit plate also comprises and the two or more of electric property coupling driving power can draw contact, and respectively this draws the two ends that contact is arranged at the opposite side surface of the relatively each described metallic conductor of described cover crystal circuit plate respectively.
Preferably, described bottom shape is tip, circular arc or arc.
Compared to prior art, the utility model also has following effect: the utility model combines and covers crystalline substance (FlipChip), COB (Chip on Borad) encapsulation and optical technology, there is low thermal resistance, exempt from routing (wirebonding), the luminescence obtaining comparatively large (comparatively linear) can be driven to export with larger current.Therefore the utility model generally speaking, simplifying manufacturing process, reduce LED chip quantity (can reduce 1/2 ~ 2/3), reducing costs, reaching the LED lamp tube that reliability significantly promotes for having.To utilize beyond each LED chip allocation position and there is large-area metallic conductor, the effect of each LED chip thermal diffusion can be increased.
Accompanying drawing explanation
Fig. 1 is the volume rendering schematic diagram with the LED lamp tube of diffused light lens of the present utility model;
Fig. 2 is the schematic diagram that LED chip of the present utility model is electrically connected at the first embodiment of cover crystal circuit plate;
Fig. 3 is the schematic diagram that Fig. 2 covers the second embodiment of lens body again;
Fig. 4 is the state cross-sectional schematic of part LED chip of the present utility model luminescence;
Fig. 5 is the part A enlarged section schematic diagram of Fig. 4;
Fig. 6 is another enlarged section schematic diagram of the part A of Fig. 4;
Fig. 7 A is the curvilinear mold graphoid with the LED lamp tube luminescence of diffused light lens of the present utility model;
Fig. 7 B is the three-dimensional modelling figure with the LED lamp tube luminescence of diffused light lens of the present utility model;
Fig. 8 is the enlarged schematic partial view that LED chip of the present utility model encapsulates with the lens body of different curve;
Fig. 9 is the cross-sectional schematic that LED chip of the present utility model encapsulates with different curve lens body;
Figure 10 is the corresponding cross-sectional schematic arranging the shape of bottom of LED chip of the present utility model;
Figure 11 light-emitting line that is LED chip of the present utility model with existing LED chip on part fluorescent tube compare cross-sectional schematic.
Description of reference numerals
10 LED chip 20 fluorescent tubes
100 LED lamp tube 110 lampshades
120 end cap 200 cover crystal circuit plates
202 metallic conductor 204 solder projections
206 draw contact 208 reflecting layer
209 heat-radiating substrate 210 LED chip
220 lens body 222 inverted cone shape grooves
Bottom 224 lens surfaces 226
230 curved surface 250 fluorescent material
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, be described as follows cooperation accompanying drawing, but appended accompanying drawing is only as illustrative purposes, not for limiting to the utility model.
As shown in Figure 1 to Figure 3, the utility model provides a kind of LED lamp tube 100 with diffused light lens, and this LED lamp tube 100 comprises cover crystal circuit plate 200, two or more LED chip 210 and two or more lens body 220.As shown in Figure 1, LED lamp tube 100 also comprises lampshade 110 and two end caps 120.For the lampshade 110 of insulation or glass material can cover the cover crystal circuit plate 200 encapsulating each LED chip 210 through lens body 220, and each end cap 120 is bonded to the two ends of lampshade 110 respectively.Cover crystal circuit plate 200 1 side surface is provided with two or more metallic conductor 202, and each metallic conductor 202 is preferably good electric conductivity and the Copper Foil/copper coin of series connection mutually, silver or its alloy.Cover crystal circuit plate 200 also comprises and the two or more of electric property coupling driving power (not shown) can draw contact 206, wherein respectively draws the two ends that contact 206 is arranged at the opposite side surface of the relatively each metallic conductor 202 of cover crystal circuit plate 200 respectively.As shown in Figure 1, draw contact 206 and preferably comprise 6, so that various driving power can be compatible with widely.The quantity of LED chip is preferably 21.The section shape of cover crystal circuit plate 200 is preferably tabular, with coated by lampshade 110.But in the embodiment that other are different, the section shape of cover crystal circuit plate 200 also can be arc (figure slightly), closely can be combined with lampshade 110.
As shown in Figure 2, each LED chip 210 is electrically connected on any two adjacent metallic conductors 202.In the present embodiment, LED chip 210, by two long tie point solder projections (solder bump) 204, then turns and each solder projection 204 is electrically connected on any two adjacent metallic conductors 202 respectively by each LED chip 210.This kind of combination process can reduce thermal resistance, exempt from routing and increase reliability, can also simplify the design of system simultaneously, and more than namely COB combines and covers the technique and advantage that crystalline substance (Flip Chip) encapsulates.In addition, in embodiment as shown in Figures 2 and 3, to utilize beyond each LED chip 210 allocation position and there is large-area metallic conductor 202, the effect of each LED chip 210 thermal diffusion can be increased.
As shown in Figure 3, each lens body 220 is preferably in semiellipsoid half-and-half, and each lens body 220 to be configured on cover crystal circuit plate 200 and to cover each LED chip 210.Shown in Fig. 4 and Fig. 5, each lens body 220 comprises inverted cone shape groove 222 and lens surface 224.Inverted cone shape groove 222 also has the bottom 226 of setting corresponding with LED chip 210.As shown in Figure 5, the height between bottom 226 and cover crystal circuit plate 200 is preferably less than near the height (namely ignoring the lens surface 224 close to two ends, reflecting layer 208) between the lens surface 224 and cover crystal circuit plate 200 at inverted cone shape groove 222 two ends.
In embodiment as shown in Figures 4 and 5, LED lamp tube 100 of the present utility model also comprises reflecting layer 208 and heat-radiating substrate 209.Layer 208 of tossing about is configured at cover crystal circuit plate 200 and is provided with on this side surface of each metallic conductor 202, and is arranged between lens body 220 and cover crystal circuit plate 200.Heat-radiating substrate 209 is preferably copper, aluminium or its alloy, goes out in order to the heat conduction each LED chip 210 produced.Reflecting layer 208 main purpose is also the light that lens body 220 reflects to be reflected the light that reflection LED chip 210 sends away again.In addition, in embodiment as shown in Figure 5, LED chip 210 also comprises fluorescent material 250, and LED chip 210 just can be made luminous.Fluorescent material 250 can cover and be encapsulated in LED chip 210 together with lens body 220, and namely fluorescent material 250 is distributed in lens body 220.But as shown in Figure 6, fluorescent material 250 also can be coated on the surface of LED chip 210, optionally changes.
Therefore when LED chip 210 excitated fluorescent powder 250 sends the light of high brightness, inverted cone shape groove 222 structure of similar V-arrangement in lens body 220, the light total reflection being radiated inverted cone shape groove 222 surface can be made, to increase the range that each LED chip 210 light irradiates.In brief, the lens body 220 of the special shape of the present embodiment has the effect of diffused light.
Further, the surface of inverted cone shape groove 222 can be designed according to rim ray theorem (edge-ray principle), when the light impinges that LED chip 210 is sent is to inverted cone shape groove 222 surperficial, can is totally reflected and can not penetrates.Lens surface 224 becomes curved surface 230 from inverted cone shape groove 222 two ends consecutive variations, and the three-dimensional surface that inverted cone shape groove 222 two ends connect lens surface 224 is the curved surface 230 that slope rate continuity changes, as shown in Figure 8.In other words, inverted cone shape groove 222 can make the curved surface 230 that lens surface 224 local is slope rate continuity change.The slope that curved surface 230 is often located can make the light impinges of specific incidence angle be totally reflected to during this place, and the two ends that the scope of curved surface 230 comprises inverted cone shape groove 222 are connected to the surface of cover crystal circuit plate 200 always.
Lens body 220 can be made up of any transparent or semitransparent macromolecular material, such as silicones (silicone), ring-type alkene copolymer (cyclic olefin copolymer), polyurethanes (polyurethane), polystyrene (polystyrene), copolyesters (polyester), poly-carbonic acid (polycarbonate, PC), ethylene terephthalate (polyethylene terephthalate, PET), poly-imines (polyimide, PI), polyethylene (polyethylene, PE), polypropylene (polypropylene, PP), polymethacrylates (polymethylmethacrylate, PMMA), acrylonitrile-butadiene-styrene (acrylonitrile-butadiene-styrene copolymer, or the combination of above-mentioned material ABS).In addition, lens body 220 can by injection molding (injection molding), model (molding), extrude (protruding), punching press (pressing) or the compacting technique such as (embossing) and make.
As shown in figs. 7 a and 7b, distribution curve flux and the luminous intensity distribution stereogram of the LED chip luminescence of simulation drawing 5 is respectively.As shown in the figure, the luminous intensity size of each spatial distribution simulated is on average between 225 ~ 292.5cd/klm.Therefore, the both side surface of inverted cone shape groove 222 presents straight line, but makes LED chip 210 have larger light emission area (light emitting range) by the lens body 220 with optical design.
As can be seen from figures 8 and 9, the part encapsulated with the lens body of different curve for the utility model is amplified and cross-sectional schematic.In the present embodiment, lens body 220 is roughly in cylindrical body half-and-half, and its lens surface 224 still having inverted cone shape groove 222 and connect inverted cone shape groove 222 two ends, wherein inverted cone shape groove 222 has the bottom 226 of setting corresponding with LED chip 210.Said bottom 226 is preferably tip.But in embodiment as shown in Figure 10, bottom 226 also can be circular arc or arc.In other words, when LED chip 210 and fluorescent material 250 mixed light emit beam, also can from bottom 226 bright dipping being circular arc or arc.In addition, object and the effect of larger light emission area and above-described embodiment can be reached equally in cylindrical body half-and-half.About other structures of the present embodiment, the content stated before please refer to, does not repeat them here.
As shown in figure 11, for LED chip of the present utility model and existing LED chip on part fluorescent tube light-emitting line compare cross-sectional schematic.As shown in the figure first half, lens body 220 in the utility model is provided with inverted cone shape groove 222 structure of V-arrangement, when light radiation can reflect away to during inverted cone shape groove 222 surperficial again, make each LED chip 210 light overlaps, to have the effect of diffused light, and then can solve between existing each LED chip 10 in fluorescent tube 20, there is the problem of hiding.Therefore the utility model generally speaking, can the luminescence obtaining comparatively large (comparatively linear) be driven to export, simplify manufacturing process, reduce LED chip 210 quantity (can 1/2 ~ 2/3 be reduced), reduce costs with larger current for having, reach the LED lamp tube that reliability significantly promotes.
The above, be only illustrating of preferred embodiment of the present utility model, and be not used to limit to protection domain of the present utility model, and other any equivalent transformation all should belong to the right of the application.
Claims (12)
1. have a LED lamp tube for diffused light lens, it is characterized in that, this LED lamp tube comprises:
Cover crystal circuit plate, this cover crystal circuit plate one side surface is provided with two or more metallic conductor;
Two or more LED chip, this LED chip each is electrically connected on any two adjacent described metallic conductors; And
Two or more lens body, to be configured on described cover crystal circuit plate and to cover each described LED chip, respectively this lens body comprises inverted cone shape groove and lens surface, described inverted cone shape groove also has the bottom of setting corresponding with described LED chip, and the height wherein bottom this and between described cover crystal circuit plate is less than the height between described lens surface and described cover crystal circuit plate.
2. there is the LED lamp tube of diffused light lens as claimed in claim 1, it is characterized in that, this LED lamp tube also comprises reflecting layer, and this reflecting layer is configured at the side of described cover crystal circuit plate on the surface, and is arranged between described lens body and described cover crystal circuit plate.
3. have the LED lamp tube of diffused light lens as claimed in claim 1, it is characterized in that, each described LED chip also comprises two solder projections, and this solder projection each is electrically connected any two adjacent described metallic conductors respectively.
4. have the LED lamp tube of diffused light lens as claimed in claim 1, it is characterized in that, this LED lamp tube also comprises fluorescent material, and this fluorescent material can be coated described LED chip surface or distribute in described lens body.
5. there is the LED lamp tube of diffused light lens as claimed in claim 1, it is characterized in that, described lens surface becomes curved surface from described inverted cone shape groove two ends consecutive variations, and the two ends that the scope of this curved surface comprises described inverted cone shape groove are connected to the surface of described cover crystal circuit plate always.
6. have the LED lamp tube of diffused light lens as claimed in claim 1, it is characterized in that, the both side surface of described inverted cone shape groove is straight line.
7. there is the LED lamp tube of diffused light lens as claimed in claim 1, it is characterized in that, this LED lamp tube also comprises lampshade and two end caps, described lampshade can cover the described cover crystal circuit plate through each described LED chip of described lens body encapsulation, and each described end cap is bonded to the two ends of described lampshade respectively.
8. have the LED lamp tube of diffused light lens as claimed in claim 7, it is characterized in that, described cover crystal circuit plate section shape is arc, to be combined with described lampshade.
9. have the LED lamp tube of diffused light lens as claimed in claim 1, it is characterized in that, the shape of described lens body is in semiellipsoid half-and-half or in cylindrical body half-and-half.
10. have the LED lamp tube of diffused light lens as claimed in claim 1, it is characterized in that, the quantity of described LED chip is 21, and each described metallic conductor is Copper Foil or the copper coin material of series connection mutually.
11. LED lamp tube as claimed in claim 1 with diffused light lens, it is characterized in that, described cover crystal circuit plate also comprises and the two or more of electric property coupling driving power can draw contact, and respectively this draws the two ends that contact is arranged at the opposite side surface of the relatively each described metallic conductor of described cover crystal circuit plate respectively.
12. LED lamp tube as claimed in claim 1 with diffused light lens, it is characterized in that, described bottom shape is tip, circular arc or arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520107469.5U CN204534247U (en) | 2015-02-13 | 2015-02-13 | There is the LED lamp tube of diffused light lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520107469.5U CN204534247U (en) | 2015-02-13 | 2015-02-13 | There is the LED lamp tube of diffused light lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204534247U true CN204534247U (en) | 2015-08-05 |
Family
ID=53748249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520107469.5U Expired - Fee Related CN204534247U (en) | 2015-02-13 | 2015-02-13 | There is the LED lamp tube of diffused light lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204534247U (en) |
-
2015
- 2015-02-13 CN CN201520107469.5U patent/CN204534247U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20160213 |