LED (Light-Emitting Diode) lamp bulb with good heat radiation
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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
Inactive Publication Date: 2012-08-22
XIAMEN TENIA LIGHTING & ELECTRICAL
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Abstract
Description
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Problems solved by technology
However, due to the problem of junction temperature and heat dissipation in LED bulbs, especially miniaturized LED bulbs, it affects the popularization and use of LED bulbs.
Method used
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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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Abstract
The invention discloses an LED (Light-Emitting Diode) lamp bulb with good heat radiation. The LED lamp bulb a lamp cover, a lamp cup, an LED chip, a driving PCB (Printed Circuit Board) box, a driving PCB, a lamp cap molding piece and a lamp cap, wherein a plurality of vertical heat radiation seams are arranged on the side wall of the lower part of the lamp cup and are communicated with a hollow cavity of the lamp cup; a mounting face is arranged at the upper end of the lamp cup and the mounting face is fixedly connected with the LED chip or is fixedly connected with the LED Chip by using the PCB through mounting the LED chip; a flow guide cavity provided with an inner cavity for entering the lamp cover is arranged at the top end of the lamp cover; and the bottom end of the flow guide cavity is connected to the upper end of the hollow cavity so that air outside the LED lamp bulb can flow through the radiation seams among the flow guide cavity, the hollow cavity of the lamp cup and the lamp cup. Due to the adoption of the structure, when the LED lamp bulb is lighted, the heat emitted by the LED chip of the LED lamp bulb can be conducted to a heat radiation sheet on the back through a heat conduction base so as to be dissipated to the hollow cavity of the lamp cup, and then the heat is radiated to the outside air through a flow guide channel which is communicated with the outside air through the heat radiation seam of the flow guide cavity, the hollow cavity of the lamp cup and the lamp cup, so that the exchanging and communication of cold air and hot air can be accelerated and the heat radiation problem of the LED lamp is effectively solved.
Description
technical field [0001] The invention relates to a lighting device, in particular to an imitation traditional incandescent bulb with good heat dissipation and using LED as a light source. Background technique [0002] Lighting lamps belong to people's daily necessities. Traditional lighting lamps are incandescent lamps made of tungsten filaments. Restricted the use of incandescent lamps. [0003] LED is a light-emitting diode, which is made of electroluminescent semiconductor materials. LED has low voltage, high efficiency, good monochromaticity, strong applicability, good stability, short response time, long life and no pollution. Environmental and other excellent characteristics; LEDs are generally powered by low-voltage power supplies, and the power supply voltage is generally between 2-24V, which is more secure; the energy consumption of LEDs is 80% lower than that of incandescent lamps with the same light efficiency; each unit LED is small, Lighting fixtures can be pre...
Claims
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Application Information
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