CN108302350B - LED lamp tube with graphene coating and processing technology thereof - Google Patents
LED lamp tube with graphene coating and processing technology thereof Download PDFInfo
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- CN108302350B CN108302350B CN201810255681.4A CN201810255681A CN108302350B CN 108302350 B CN108302350 B CN 108302350B CN 201810255681 A CN201810255681 A CN 201810255681A CN 108302350 B CN108302350 B CN 108302350B
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- 238000000576 coating method Methods 0.000 title claims abstract description 69
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 239000011248 coating agent Substances 0.000 title claims abstract description 65
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 65
- 238000005516 engineering process Methods 0.000 title claims description 9
- 239000011521 glass Substances 0.000 claims abstract description 44
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000010949 copper Substances 0.000 claims abstract description 19
- 229910052802 copper Inorganic materials 0.000 claims abstract description 19
- 238000009792 diffusion process Methods 0.000 claims abstract description 12
- 239000003292 glue Substances 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 12
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 8
- 239000004111 Potassium silicate Substances 0.000 claims description 6
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 claims description 6
- 229910001635 magnesium fluoride Inorganic materials 0.000 claims description 6
- 235000019353 potassium silicate Nutrition 0.000 claims description 6
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 6
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- DGXTZMPQSMIFEC-UHFFFAOYSA-M sodium;4-anilinobenzenesulfonate Chemical compound [Na+].C1=CC(S(=O)(=O)[O-])=CC=C1NC1=CC=CC=C1 DGXTZMPQSMIFEC-UHFFFAOYSA-M 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 6
- 238000002474 experimental method Methods 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 20
- 238000002834 transmittance Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002052 molecular layer Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/90—Methods of manufacture
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/87—Organic material, e.g. filled polymer composites; Thermo-conductive additives or coatings therefor
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a lighting product, in particular to an LED lamp tube. The invention relates to an LED lamp tube with a graphene coating, which comprises a glass tube, a driver, 2 lamp holders and a light source plate, wherein the glass tube is cylindrical, one end of the driver is connected with mains supply, the other end of the driver is connected with the light source plate, the lamp holders are arranged at two ends of the glass tube, a first copper lamp holder and a second copper lamp holder are arranged on the lamp holders, the driver is positioned at the right side inside the glass tube, a plurality of LED chips are arranged on the light source plate, the right side of the driver is connected with the first copper lamp holder and the second copper lamp holder, the left side of the driver is connected with the driver, the light source plate is positioned at the lower part of the glass tube, heat conducting glue is arranged between the light source plate and the inner wall of the glass tube, and the graphene coating and the light diffusion coating are sequentially arranged on the inner wall of the glass tube. A large number of experiments prove that the coating with the thickness has the best heat dissipation performance, compared with an LED lamp tube without graphene, the LED lamp tube with the 24W coating has the advantages that the junction temperature of the LED lamp tube is reduced by about 20 ℃, and the service life and the light output of the LED lamp tube are greatly improved.
Description
Technical Field
The invention relates to a lighting product, in particular to an LED lamp tube.
The invention relates to an LED lamp processing technology, in particular to an LED lamp tube processing technology.
Background
The LED lamp tube has high light efficiency, is energy-saving and environment-friendly, and becomes an ideal light source capable of replacing the traditional straight tube type fluorescent lamp at present, the light-emitting source of the LED lamp tube is an LED chip, and the chip can generate a large amount of heat during working, and the heat is conducted to the glass tube through the heat conducting glue after passing through the light source plate (generally adopting an aluminum substrate or a glass fiber plate), and is emitted by the glass tube. Since glass is a poor conductor of heat, its thermal conductivity is only 0.75W/m K (at 20 ℃) and about 1/400 of copper, and the effect is not great for the lower power LED tube, but the temperature of the LED chip will rise very high for the higher power lamp, resulting in reduced light efficiency, serious light decay and short product life.
Disclosure of Invention
In order to solve the defects of the prior art in the aspect of manufacturing a high-power LED straight tube lamp, the invention provides an LED lamp tube with a graphene coating and a good heat dissipation effect and a processing technology thereof.
The invention relates to an LED lamp tube with a graphene coating, which comprises a glass tube, a driver, 2 lamp holders and a light source plate, wherein the glass tube is cylindrical, one end of the driver is connected with mains supply, the other end of the driver is connected with the light source plate, the lamp holders are arranged at two ends of the glass tube, a first copper lamp holder and a second copper lamp holder are arranged on the lamp holders, the driver is positioned at the right side inside the glass tube, a plurality of LED chips are arranged on the light source plate, the right side of the driver is connected with the first copper lamp holder and the second copper lamp holder, the left side of the driver is connected with the driver, the light source plate is positioned at the lower part of the glass tube, heat conducting glue is arranged between the light source plate and the inner wall of the glass tube, and the graphene coating and the light diffusion coating are sequentially arranged on the inner wall of the glass tube. A large number of experiments prove that the coating with the thickness has the best heat radiation performance, and meanwhile, the light transmittance can not be obviously reduced, compared with an LED lamp tube without graphene, the LED lamp tube with the 24W coating has the advantages that the junction temperature of the LED lamp tube is reduced by about 20 ℃, and the service life and the light output of the LED lamp tube are greatly improved.
Preferably, the light source board is an aluminum substrate or an epoxy resin board. Low cost and convenient processing.
Preferably, the graphene coating thickness is 3-9 graphene molecular layer thicknesses. Good heat dissipation performance and high light transmittance.
Preferably, the light diffusion coating comprises a silicon dioxide layer, a potassium silicate layer, a magnesium fluoride layer and an aluminum oxide layer, wherein the thickness of the silicon dioxide layer is 150-370 nm, the thickness of the potassium silicate layer is 175-428 nm, the thickness of the magnesium fluoride layer is 230-390 nm, and the thickness of the aluminum oxide layer is 175-420 nm. The refractive indexes of different substances and special coating structures thereof are utilized to absorb light rays with different wave bands so as to achieve the anti-reflection and anti-reflection effects of the multilayer film.
A processing technology of an LED lamp tube with a graphene coating comprises the following steps:
1. Putting nanoscale graphene powder into an ethanol solution with the purity of 95% according to the weight ratio of 1.4:1000-1.8:1000, adding sodium diphenylamine sulfonate as a dispersing agent according to the weight ratio of 0.8:1000-1.2:1000, and adjusting the pH value to 8-9 by using ethanolamine as a pH value regulator to prepare graphene suspension;
2. Dispersing the graphene suspension in ultrasonic waves for 0.5 hour to form a nano sol solution;
3. Adding water into the graphene sol liquid, and blending to obtain the concentration of 50-100 ppm; stirring at a high speed for 2.5-3 hours in a high-speed stirrer of 50-60 r/s to form graphene sol solution for coating;
4. Placing the graphene sol liquid into a constant temperature device, and controlling the temperature within the range of 27-33 ℃;
5. Spraying sol liquid containing graphene into a glass tube on a powder coating machine, then entering a drying area, and completely drying at the temperature of 125-155 ℃ to prepare a transparent glass tube with a graphene coating;
6. and (3) coating a layer of light diffusion coating on the transparent glass tube with the graphene coating according to a normal coating process on a powder coating machine.
A processing technology of an LED lamp tube with a graphene coating comprises the following steps:
1. Putting nanoscale graphene powder into an ethanol solution with the purity of 95% according to the weight ratio of 1.4:1000-1.8:1000, adding sodium diphenylamine sulfonate as a dispersing agent according to the weight ratio of 0.8:1000-1.2:1000, and adjusting the pH value to 8-9 by using ethanolamine as a pH value regulator to prepare graphene suspension;
2. Dispersing the graphene suspension in ultrasonic waves for 0.5 hour to form a nano sol solution;
3. Adding water into the graphene sol liquid, and blending to obtain the concentration of 50-100 ppm; stirring at a high speed for 2.5-3 hours in a high-speed stirrer of 50-60 r/s to form graphene sol solution for coating;
4. Placing the graphene sol liquid into a constant temperature device, and controlling the temperature within the range of 27-33 ℃;
5. Spraying sol liquid containing graphene into a glass tube on a powder coating machine, then entering a drying area, and completely drying at the temperature of 125-155 ℃ to prepare a transparent glass tube with a graphene coating;
6. and (3) coating a layer of light diffusion coating on the transparent glass tube with the graphene coating according to a normal coating process on a powder coating machine.
The invention has the beneficial effects that: a large number of experiments prove that the coating with the thickness has the best heat radiation performance, and meanwhile, the light transmittance can not be obviously reduced, compared with an LED lamp tube without graphene, the LED lamp tube with the 24W coating has the advantages that the junction temperature of the LED lamp tube is reduced by about 20 ℃, and the service life and the light output of the LED lamp tube are greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of an LED tube with a graphene coating.
Fig. 2 is a schematic cross-sectional structure of an LED tube with a graphene coating.
Fig. 3 is a schematic diagram of a partial cross-sectional structure of an LED tube with a graphene coating.
The marks in the figure: 1. glass tube, 2, LED chip, 3, driver, 4, lamp holder, 5, first copper lamp pin, 6, light source board, 7, second copper lamp pin, 8, light diffusion coating, 9, heat conduction glue, 10, graphene coating.
Detailed Description
As shown in fig. 1-3, an LED tube with a graphene coating layer includes a glass tube 1, a driver 3, 2 lamp holders 4 and a light source plate 6, where the glass tube 1 is cylindrical, one end of the driver 3 is connected to a mains supply, one end is connected to the light source plate 6, two ends of the glass tube 1 are provided with the lamp holders 4, the lamp holders 4 are provided with a first copper lamp holder 5 and a second copper lamp holder 7, the driver 3 is located on the right side of the inside of the glass tube 1, the light source plate 6 is provided with a plurality of LED chips 2, the right side of the driver 3 is connected to the first copper lamp holder 5 and the second copper lamp holder 7, the left side is connected to the driver 3, the light source plate 6 is located on the lower portion of the glass tube 1, a heat conductive adhesive 9 is disposed between the light source plate 6 and the inner wall of the glass tube 1, and the graphene coating layer 10 and the light diffusion coating layer 8 are sequentially disposed on the inner wall of the glass tube 1. A large number of experiments prove that the coating with the thickness has the best heat radiation performance, and meanwhile, the light transmittance can not be obviously reduced, compared with an LED lamp tube without graphene, the LED lamp tube with the 24W coating has the advantages that the junction temperature of the LED lamp tube is reduced by about 20 ℃, and the service life and the light output of the LED lamp tube are greatly improved.
Preferably, the thickness of the graphene coating 10 is 3-9 graphene molecular layers. Good heat dissipation performance and high light transmittance.
Preferably, the light diffusion coating 8 comprises a silicon dioxide layer, a potassium silicate layer, a magnesium fluoride layer and an aluminum oxide layer, wherein the thickness of the silicon dioxide layer is 150-370 nm, the thickness of the potassium silicate layer is 175-428 nm, the thickness of the magnesium fluoride layer is 230-390 nm, and the thickness of the aluminum oxide layer is 175-420 nm. The refractive indexes of different substances and special coating structures thereof are utilized to absorb light rays with different wave bands so as to achieve the anti-reflection and anti-reflection effects of the multilayer film.
A processing technology of an LED lamp tube with a graphene coating comprises the following steps:
1. Putting nanoscale graphene powder into an ethanol solution with the purity of 95% according to the weight ratio of 1.4:1000-1.8:1000, adding sodium diphenylamine sulfonate as a dispersing agent according to the weight ratio of 0.8:1000-1.2:1000, and adjusting the pH value to 8-9 by using ethanolamine as a pH value regulator to prepare graphene suspension;
2. Dispersing the graphene suspension in ultrasonic waves for 0.5 hour to form a nano sol solution;
3. Adding water into the graphene sol liquid, and blending to obtain the concentration of 50-100 ppm; stirring at a high speed for 2.5-3 hours in a high-speed stirrer of 50-60 r/s to form graphene sol solution for coating;
4. Placing the graphene sol liquid into a constant temperature device, and controlling the temperature within the range of 27-33 ℃;
5. Spraying sol liquid containing graphene into a glass tube on a powder coating machine, then entering a drying area, and completely drying at the temperature of 125-155 ℃ to prepare a transparent glass tube with a graphene coating;
6. and (3) coating a layer of light diffusion coating on the transparent glass tube with the graphene coating according to a normal coating process on a powder coating machine.
Claims (1)
1. The utility model provides a processing technology of LED fluorescent tube with graphene coating, the LED fluorescent tube with graphene coating includes the glass tube, a driver, 2 lamp holders and light source board, the glass tube is cylindrical, driver one end inserts the commercial power, one end links to each other with the light source board, glass tube both ends are equipped with the lamp holder, be equipped with first copper lamp pin and second copper lamp pin on the lamp holder, the driver is located glass tube inside right side, be equipped with a plurality of LED chips on the light source board, the driver right side links to each other with first copper lamp pin and second copper lamp pin, the left side links to each other with the driver, the light source board is located glass tube lower part, be equipped with heat-conducting glue between light source board and the glass tube inner wall, glass tube inner wall is equipped with graphene coating and light diffusion coating in proper order, graphene coating thickness is 3~9 graphene molecule layer thickness, light diffusion coating includes silica layer, potassium silicate layer, magnesium fluoride layer and aluminium oxide layer, silica layer thickness is 150~ 3705 nm, potassium silicate layer thickness is 175~ 2nm, magnesium fluoride layer thickness is 230~395nm, aluminium oxide layer thickness is 175~420nm, characterized by comprising the following steps:
S1, putting nanoscale graphene powder into an ethanol solution with the purity of 95% according to the weight ratio of 1.4:1000-1.8:1000, adding sodium diphenylamine sulfonate as a dispersing agent according to the weight ratio of 0.8:1000-1.2:1000, and adjusting the pH value to 8-9 by using ethanolamine as a pH value regulator to prepare graphene suspension;
s2, dispersing the graphene suspension in ultrasonic waves for 0.5 hour to form nano sol solution;
s3, adding water into the graphene sol liquid, and blending to obtain a concentration of 50-100 ppm; stirring at a high speed for 2.5-3 hours in a high-speed stirrer of 50-60 r/s to form graphene sol solution for coating;
s4, placing the graphene sol liquid into a constant temperature device, and controlling the temperature within a range of 27-33 ℃;
s5, spraying sol liquid containing graphene into the glass tube on a powder coating machine, and then entering a drying area, and completely drying at the temperature of 125-155 ℃ to prepare a transparent glass tube with a graphene coating;
S6, coating a layer of light diffusion coating on the transparent glass tube with the graphene coating according to a normal coating process on a powder coating machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810255681.4A CN108302350B (en) | 2018-03-27 | 2018-03-27 | LED lamp tube with graphene coating and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810255681.4A CN108302350B (en) | 2018-03-27 | 2018-03-27 | LED lamp tube with graphene coating and processing technology thereof |
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| Publication Number | Publication Date |
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| CN108302350A CN108302350A (en) | 2018-07-20 |
| CN108302350B true CN108302350B (en) | 2024-04-30 |
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| CN108302350A (en) | 2018-07-20 |
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