LED (light-emitting diode) lamp filament
A technology of LED filaments and LED chips, which is applied in the direction of semiconductor devices, electrical components, circuits, etc., can solve the problems affecting the light efficiency and life of LED filaments, and the heat of LED chips cannot be quickly dissipated, so as to improve the light output angle and light output efficiency. Production The effect of high efficiency and yield rate, simple process
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[0036] Example 1
[0037] Such as figure 1 As shown, this embodiment provides an LED filament, which has a slender strip structure, the length of the filament is 30 mm, the width is 3 mm, and the height is 2.5 mm. The filament includes a bottom plate 1, a cover plate 3, an LED chip 2, an adhesive 5, and an electrode 6. The bottom plate 1 and the cover plate 3 are polycarbonate (PC) boards, and the PC board is mixed with 9% yellow phosphor. The chip 2 is fixed on the bottom plate 1, and the chip 2 is connected in series through the metal lead 4 and connected to the electrode 6. The bottom plate 1 and the cover plate 3 are joined together by an adhesive 5. The adhesive 5 is epoxy resin, and the adhesive 5 is mixed with 9% yellow phosphor.
Example Embodiment
[0038] Example 2
[0039] Such as figure 2 As shown, this embodiment provides an LED filament. The filament has a slender strip structure. The length of the filament is 20 mm, the width is 2 mm, and the height is 2 mm. The filament includes a bottom plate 1, a cover plate 3, an LED chip 2, an adhesive 5, and an electrode 6. The bottom plate 1 and the cover plate 3 are PC boards, and the PC board is mixed with 8% by mass yellow phosphor and 2% by mass red phosphor, and also mixed with aluminum nitride powder as a heat dissipation material. The chip 2 is fixed on the bottom plate 1, and the chip 2 is connected in series through the metal lead 4 and connected to the electrode 6. The bottom plate 1 and the cover plate 3 are joined together by an adhesive 5. The adhesive 5 is silica gel, and the adhesive 5 is mixed with 8% by mass yellow phosphor and 2% by mass red phosphor. At the same time, it is mixed with aluminum nitride powder as a heat dissipation material. The mass content...
Example Embodiment
[0040] Example 3
[0041] Such as image 3 As shown, this embodiment provides an LED filament. The filament includes a bottom plate 1, a cover plate 3, an LED chip 2, an adhesive 5, and an electrode 6. The bottom plate 1 and the cover plate 3 are polytetrafluoroethylene plates, and the polytetrafluoroethylene plates are mixed with 9% yellow phosphor powder and diamond powder as a heat dissipation material. The chip 2 is fixed on the bottom plate 1, and the chip 2 is connected in series through the metal lead 4 and connected to the electrode 6. The bottom plate 1 and the cover plate 3 are joined together by an adhesive 5. The adhesive 5 is epoxy resin, and the adhesive 5 is mixed with 9% yellow phosphor powder, and at the same time is mixed with diamond powder as a heat dissipation material, wherein the mass percentage of the diamond powder is 1%. A transparent inner surface heat dissipation layer 7 is sputtered on the upper surface of the base plate 1 and the lower surface of t...
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