CN110828634A - Planar 180-degree luminous surface mounted LED - Google Patents
Planar 180-degree luminous surface mounted LED Download PDFInfo
- Publication number
- CN110828634A CN110828634A CN201911138639.5A CN201911138639A CN110828634A CN 110828634 A CN110828634 A CN 110828634A CN 201911138639 A CN201911138639 A CN 201911138639A CN 110828634 A CN110828634 A CN 110828634A
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- Prior art keywords
- light
- bracket
- planar
- bowl
- diffusion layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/483—Containers
- H01L33/486—Containers adapted for surface mounting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/64—Heat extraction or cooling elements
Abstract
The invention discloses a planar 180-degree luminous patch LED, which comprises a bracket (1), wherein a bowl (2) is arranged in the middle of the bracket (1); a plurality of radioactive grains (15) are annularly arranged on the circumference of the bowl cup (2), an LED chip (3) is arranged in the bowl cup (2), and optical cement (4) is filled in the bowl cup (2); a diffusion layer (5) is coated above the bracket (1), and a light outlet (9) is arranged at the position of the bowl (2) on the diffusion layer (5); a plurality of diffuse reflection grooves (6) are respectively arranged on two side walls of the light outlet hole (9), and a plurality of bulges (7) are annularly distributed in each diffuse reflection groove (6); a light outlet is arranged at the position of one end part of each radioactive grain (15) on the side surface of the bracket (1). The invention can improve the uniformity of light, and has the advantages of small thickness, high design flexibility, high light efficiency of light source, wide application range, long service life, good heat dissipation effect and high flame retardance.
Description
Technical Field
The invention relates to an LED light source, in particular to a surface mounted LED which emits light at 180 degrees on a plane.
Background
The patch LED is a simple lamp, the light emitting principle of the patch LED is that current passes through a compound semiconductor, and through the combination of electrons and holes, the excess energy is released in the form of light to achieve the light emitting effect, the light emitting angle of the patch LED is generally about 120 degrees at present, in order to increase the light emitting angle, a secondary optical lens is generally arranged above a chip to achieve the effect of increasing the light emitting area at present, but when the light emitting area is increased by using the optical lens, the light emitting intensity at the edge is lower than that at the middle part due to the focusing effect of the optical lens on light, and the uniformity of the emitted light is influenced; when the optical lens is used for improving the light emitting effect, the shape and the thickness of the optical lens determine the shape and the thickness of the whole patch LED, and the light guide plate, the brightness enhancement film and the like are required to be added when the optical lens is used, so that the thickness of the whole patch LED is thicker. Therefore, the conventional patch LED has the problems of poor light uniformity and thick thickness.
Disclosure of Invention
The invention aims to provide a patch LED emitting light in a plane of 180 degrees. The invention not only can improve the uniformity of light, but also has the advantage of small thickness.
The technical scheme of the invention is as follows: a surface mount LED (light emitting diode) capable of emitting light at 180 degrees on the plane comprises a support, wherein a bowl is arranged in the middle of the support; a plurality of uniformly distributed radioactive grains are annularly arranged on the circumference of the bowl cup, an LED chip is arranged in the bowl cup, and optical cement is filled in the bowl cup; a diffusion layer is coated above the bracket, and a light outlet hole is formed in the position of the bowl cup on the diffusion layer; a plurality of diffuse reflection grooves which are uniformly distributed are arranged on the two side walls of the light outlet hole, and a plurality of bulges are annularly distributed in each diffuse reflection groove; and a light outlet is formed in the side surface of the bracket corresponding to one end part of each radioactive texture.
In the above-mentioned planar 180 ° light-emitting patch LED, the protrusions are connected to each other and are distributed on the sidewall of the diffuse reflection groove in a step shape.
In the planar 180 ° light-emitting patch LED, the top surface of the diffusion layer is provided with a plurality of prisms uniformly distributed, and transparent adhesive is filled between every two adjacent prisms.
In the planar 180-degree light-emitting patch LED, the LED chips of the support are all connected in parallel.
In the foregoing patch LED emitting light in a plane of 180 °, the light exit hole is cylindrical.
In the planar 180-degree light-emitting patch LED, the bottom surface of the support is provided with a plurality of uniformly distributed cooling fins, and a serpentine tube is arranged at a position corresponding to the bottom surface of each bowl cup in the support; one end of each coiled pipe is connected with the bottom surface of the support, and the other end of each coiled pipe is connected with the bowl.
In the aforementioned patch LED emitting light at 180 ° in a plane, the shape of the optical adhesive is concave.
In the planar 180-degree light-emitting patch LED, the two side edges of the support are both provided with the caulking grooves, and two ends of the diffusion layer are respectively arranged in the caulking grooves on each side.
Compared with the prior art, the LED light source improves the prior LED light source, the bowl cup is arranged on the support, the LED chips and the optical cement are arranged in the bowl cup, the diffusion layer is coated above the support, and the arrangement of the secondary optical lens can be omitted by utilizing the direct type installation mode that the diffusion layer is arranged above the LED chips, so that the thickness of the whole LED is reduced, and the design flexibility of the whole LED light source can be improved; the plurality of reflective grains which are uniformly distributed are annularly arranged at the position, corresponding to the circumference of the bowl cup, on the bracket, so that light can be emitted from the light outlet on the edge of the bracket along the reflective grains, and the light emitting uniformity and the light emitting area can be further increased; the side wall of the diffusion layer is provided with the light outlet, the two side walls of the light outlet are provided with the plurality of uniformly distributed diffuse reflection grooves, the side wall of each diffuse reflection groove is annularly provided with the plurality of protrusions, the LED chip can emit vertical light to directly irradiate the light and irradiate the light through the prism on the top surface of the diffusion layer through the light outlet, refraction, reflection and the like are not needed in the middle, and loss of light energy is reduced; the inclined light rays can irradiate in the diffuse reflection grooves, and the LED chips form diffuse reflection when irradiating the light rays on the diffusion layer by utilizing the protrusions, so that an atomization effect is generated, the light rays can be more uniformly diffused out of the diffusion layer, and the light emitting angle is 180 degrees; the softness of cooperation support through crooked support, just can improve the light source light efficiency, realizes 360 all-round luminous to application scope has been enlarged. In addition, the bulges are distributed in the diffuse reflection grooves in a step shape and are mutually connected, so that the diffuse reflection effect can be improved, and the uniformity of light rays is further improved; the prism and the transparent adhesive are arranged on the top surface of the diffusion layer, and the prism can be used for gathering light to a certain extent, so that the traditional brightness enhancement film structure is replaced, and the thickness of the whole LED light source is further reduced; the transparent adhesive tape is arranged, so that the head of the prism can be protected, and the service life of the whole LED light source is prolonged; the LED chips are arranged in parallel, so that the service life can be further prolonged; the caulking grooves are formed in the two side edges of the support, the diffusion layer and the support are assembled through the caulking grooves, and then the diffusion layer and the support are packaged in a hot pressing mode or an electric resistance welding mode, so that the production is facilitated, and the sealing performance can be improved; through be provided with fin and coiled pipe on the support, the one end and the fin connection of coiled pipe, the other end and leg joint, can increase whole LED's heat-sinking capability through setting up the fin, the setting of deuterogamying the coiled pipe is in increasing heat exchange area, thereby when accelerating the radiating rate, can also utilize the longer air flue that turns round of coiled pipe formation length, when flame contact LED, flame need turn round and just can reach LED chip department after through longer stroke, thereby make whole LED have better fire resistance. Therefore, the LED lamp can improve the uniformity of light, and has the advantages of small thickness, high design flexibility, high light efficiency of a light source, wide application range, long service life, good heat dissipation effect and high flame retardance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the bracket;
FIG. 3 is a side view of the bracket;
fig. 4 is a partially enlarged view of a portion a in fig. 1.
The labels in the figures are: 1-support, 2-bowl, 3-LED chip, 4-optical cement, 5-diffusion layer, 6-diffuse reflection groove, 7-bulge, 9-light outlet, 10-prism, 11-transparent cement, 12 caulking groove, 13-radiating fin, 14-serpentine tube, and 15-radioactive grain.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.
Examples are given. A planar 180-degree luminous patch LED is shown in figures 1 to 4 and comprises a support 1, wherein a bowl 2 is arranged in the middle of the support 1; a plurality of uniformly distributed radioactive grains 15 are annularly arranged on the circumference of the bowl cup 2, an LED chip 3 is arranged in the bowl cup 2, and optical cement 4 is filled in the bowl cup 2; a diffusion layer 5 is coated above the bracket 1, and a light outlet 9 is arranged at the position of the bowl 2 on the diffusion layer 5; a plurality of diffuse reflection grooves 6 which are uniformly distributed are arranged on two side walls of the light outlet hole 9, and a plurality of bulges 7 are annularly distributed in each diffuse reflection groove 6; a light outlet is arranged at the position of one end part of each radioactive texture 15 on the side surface of the bracket 1.
The bulges 7 are mutually connected and distributed on the side wall of the diffuse reflection groove 6 in a step shape; the top surface of the diffusion layer 5 is provided with a plurality of prisms 10 which are uniformly distributed, and transparent adhesive 11 is filled between every two adjacent prisms 10; the LED chips 3 of the bracket 1 are all connected in parallel; the light outlet 9 is cylindrical; a plurality of uniformly distributed radiating fins 13 are arranged on the bottom surface of the support 1, and a serpentine pipe 14 is arranged at the position, corresponding to the bottom surface of each bowl 2, in the support 1; one end of each coiled pipe 14 is connected with the bottom surface of the bracket 1, and the other end is connected with the bowl 2; the shape of the optical cement 4 is concave; both sides of the support 1 are provided with caulking grooves 12, and both ends of the diffusion layer 5 are respectively arranged in the caulking grooves 12 on each side.
The working principle is as follows: when the LED light source is used, the whole patch light source is connected with a power supply, then the LED chip 3 emits light, the light emitted by the LED chip 3 can be subjected to first diffuse reflection through the optical cement 4, so that the light-emitting area of the LED chip 3, which is only the size of the LED chip 3, is amplified, part of the light can be emitted from the light outlet on the side surface of the bracket 1 along the radioactive grains 15, the light-emitting angle is increased from 90 degrees to 120 degrees to 150 degrees, then the light which is irradiated in parallel through the light part of the optical cement 4 can be directly irradiated on the prism 10 through the light outlet 9, and the light is directly refracted through the prism 10; the light rays with included angles with the support 1 can irradiate in the diffuse reflection grooves 6 on the side walls of the light outlet holes 9, the light rays emitted from different angles can be subjected to diffuse reflection by utilizing the protrusions 7 in the diffuse reflection grooves 6, the reflected light rays can be refracted in the diffusion layer 5, most of light rays can be irradiated on the prisms 10 on the top surface of the diffusion layer 5 in parallel, and the other part of light rays can be directly found out from the side edges of the diffusion layer 5, and the light rays passing through the diffusion layer 5 can enter the prisms 10, so that the light-gathering effect of the prisms 10 is utilized, the light-emitting intensity can be increased while the light rays are ensured to be uniform, the light-emitting angle can reach 180 degrees, and plane light emission is realized; meanwhile, the bracket 1 is made of flexible materials, so that the luminous angle can be adjusted by bending the bracket 1, and 0-360-degree all-dimensional adjustment is realized, so that the application range can be further expanded; meanwhile, in the whole LED light emitting process, heat generated by the LED chip 3 can be diffused on the support 1, the heat in the support 1 can exchange heat with air in the coiled pipe 14 through the inner wall of the coiled pipe 14, and meanwhile, the heat is diffused to the outside through the radiating fins 13 on the bottom surface of the support 1 in a matched mode, so that rapid heat dissipation is achieved; the serpentine tube 14 can also form a turning air passage with a long length, and when flame contacts the LED, the flame needs to turn through a long stroke before reaching the LED chip 3, so that the whole LED has good flame retardancy.
Claims (8)
1. A planar 180-degree light-emitting patch LED is characterized in that: comprises a bracket (1), wherein a bowl (2) is arranged in the middle of the bracket (1); a plurality of uniformly distributed radioactive grains (15) are annularly arranged on the circumference of the bowl cup (2), an LED chip (3) is arranged in the bowl cup (2), and optical cement (4) is filled in the bowl cup (2); a diffusion layer (5) is coated above the bracket (1), and a light outlet (9) is formed in the position of the bowl (2) on the diffusion layer (5); a plurality of diffuse reflection grooves (6) which are uniformly distributed are formed in the two side walls of the light outlet hole (9), and a plurality of bulges (7) are annularly distributed in each diffuse reflection groove (6); a light outlet is arranged at the position of one end part of each radioactive texture (15) on the side surface of the bracket (1).
2. A planar 180 ° light emitting patch LED according to claim 1, wherein: the bulges (7) are connected with each other and distributed on the side wall of the diffuse reflection groove (6) in a step shape.
3. A planar 180 ° light emitting patch LED according to claim 1, wherein: the top surface of the diffusion layer (5) is provided with a plurality of prisms (10) which are uniformly distributed, and transparent adhesive (11) is filled between every two adjacent prisms (10).
4. A planar 180 ° light emitting patch LED according to claim 1, wherein: the LED chips (3) of the bracket (1) are all connected in parallel.
5. A planar 180 ° light emitting patch LED according to claim 1, wherein: the light outlet (9) is cylindrical.
6. A planar 180 ° light emitting patch LED according to claim 1, wherein: a plurality of radiating fins (13) which are uniformly distributed are arranged on the bottom surface of the support (1), and a serpentine pipe (14) is arranged in the support (1) at a position corresponding to the bottom surface of each bowl (2); one end of each coiled pipe (14) is connected with the bottom surface of the bracket (1), and the other end is connected with the bowl (2).
7. A planar 180 ° light emitting patch LED according to claim 1, wherein: the shape of the optical cement (4) is concave.
8. A planar 180 ° light emitting patch LED according to any one of claims 1 to 7, wherein: both sides of support (1) all are provided with caulking groove (12), the both ends of diffusion layer (5) set up respectively in the caulking groove (12) of every side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911138639.5A CN110828634B (en) | 2019-11-20 | 2019-11-20 | Planar 180-degree luminous surface mounted LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911138639.5A CN110828634B (en) | 2019-11-20 | 2019-11-20 | Planar 180-degree luminous surface mounted LED |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110828634A true CN110828634A (en) | 2020-02-21 |
| CN110828634B CN110828634B (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911138639.5A Active CN110828634B (en) | 2019-11-20 | 2019-11-20 | Planar 180-degree luminous surface mounted LED |
Country Status (1)
| Country | Link |
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| CN (1) | CN110828634B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352954A (en) * | 2022-01-18 | 2022-04-15 | 宁波纬智光电科技有限公司 | Intelligent colorful LED |
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| EP1610865A2 (en) * | 2003-03-14 | 2006-01-04 | Light Sciences Corporation | Light generating device to intravascular use |
| CN101099096A (en) * | 2005-01-31 | 2008-01-02 | 凸版印刷株式会社 | Optical sheet, and backlight unit and display using same |
| US20110127449A1 (en) * | 2009-12-02 | 2011-06-02 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd | Electronic device with remote control capability |
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| Publication number | Publication date |
|---|---|
| CN110828634B (en) | 2020-12-08 |
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