LED (Light-Emitting Diode) lamp bulb with good heat radiation
A technology of LED bulbs and LED chips, which is applied in lighting and heating equipment, components of lighting devices, semiconductor devices of light-emitting components, etc. Effect
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Embodiment 1
[0040] Embodiment one, see Figure 1 to Figure 8 As shown, a LED light bulb with good heat dissipation of the present invention includes a lampshade 1, a lamp cup 2, an LED chip 3, a PCB board 4 for installing the LED chip, a driving PCB box 5, a driving PCB board 6, a lamp cap plastic part 7 and Lamp holder 8; lampshade 1, lamp cup 2, lamp holder plastic part 7 and lamp holder 8 are sequentially connected; lamp cup 2 is provided with a cavity 21 transparent up and down; drive PCB box 5 is installed in the cavity 21 of the lamp cup and There is a preset gap between the inner cavity 71 of the lamp holder plastic part 7 and between the outer wall of the driving PCB box 5 and the inner wall of the cavity 21 of the lamp cup, and the driving PCB board 6 is installed in the inner cavity of the driving PCB box 5 and between the inner cavity of the lamp cap plastic part 7; the lamp cup 2 includes an upper part 27 and a lower part 28, and the side wall of the cavity of the lower part 28 ...
Embodiment 2
[0060] Embodiment two, see Figure 9 to Figure 12 As shown, a kind of LED light bulb with good heat dissipation of the present invention differs from Embodiment 1 in that:
[0061] The shape of lampshade 1 is different;
[0062] The inclination angle of the slope 23 at the upper end of the upper part 27 of the lamp cup 2 is small; and there are three slopes 23;
[0063] The diversion chamber 9 and the lampshade 1 are of an integrated structure, that is, the diversion chamber 9 is integrally fabricated on the lampshade 1;
[0064] There is no cover board and lens thereof installed on the PCB board 4 for installing the LED chip.
Embodiment 3
[0065] Embodiment three, see Figure 13 As shown, a kind of LED light bulb with good heat dissipation of the present invention differs from Embodiment 1 in that:
[0066] The upper part 27 and the lower part 28 of the lamp cup are split structures, that is, the upper part 27 and the lower part 28 are independent parts; the upper part 27 of the lamp cup and the lower part 28 of the lamp cup are fixed by screw connections. Of course, the upper part 27 of the lamp cup and the lower part 28 of the lamp cup may not be fixed by screw connection, but fixed by glue bonding or snap fit.
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