Convection radiating type LED (light-emitting diode) bulb

A LED light bulb and heat dissipation technology, which is applied in lighting and heating equipment, cooling/heating devices of lighting devices, lighting devices, etc., can solve the problems that LED light bulbs cannot exceed 8W, it is difficult to meet heat dissipation requirements, and affect the light-emitting area, etc., to achieve Good heat dissipation effect, reduced size, and large light-emitting area

Inactive Publication Date: 2012-11-28
CE LIGHTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the directional nature of LED light, it does not emit light at 360° like CFL and incandescent lamps. Therefore, when LEDs are used as light sources to replace traditional incandescent lamps or CFL light sources, their application effects are limited to a certain extent.
Existing LED light bulbs generally use exposed radiators for heat dissipation. In order to meet the requirements of hea

Method used

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  • Convection radiating type LED (light-emitting diode) bulb
  • Convection radiating type LED (light-emitting diode) bulb
  • Convection radiating type LED (light-emitting diode) bulb

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as Figure 1 ~ Figure 3 As shown, the convective heat dissipation LED light bulb of this embodiment includes a lamp cap 1, a light-transmitting cover 2, a ventilation body 3, a drive circuit 4, a heat conducting column 5 with a hollow inner cavity, and an insulating isolation cover 8. The ventilation body 3 is respectively Connected with the lamp holder 1 and the translucent cover 2, several LEDs 6 are arranged on the outer wall of the heat conduction column 5, the top of the translucent cover 2 is provided with a vent 21, and the ventilation body 3 Several ventilation grooves 31 are provided, and the ventilation grooves 31 are sequentially connected with the hollow inner cavity of the heat conduction column 5 and the air vent 21 to form a convection heat dissipation air duct, and the heat of the LED 6 is conducted through the heat conduction column 5 , and dissipate heat to the outside through the convection heat dissipation air duct, the ventilation body 3 is an ...

Embodiment 2

[0027] Such as Figure 4 ~ Figure 6 As shown, the convective heat dissipation LED light bulb of this embodiment includes a lamp cap 1, a light-transmitting cover 2, a ventilation body 3, a drive circuit 4, and a heat conducting column 5 with a hollow inner cavity. It is connected with the light-transmitting cover 2, and the outer wall of the heat-conducting column 5 is provided with several LEDs 6, and the top of the light-transmitting cover 2 is provided with a vent 21, and the ventilation body 3 is provided with several vent holes. 32. The ventilation holes 32 are sequentially connected with the hollow inner cavity of the heat conduction column 5 and the ventilation opening 21 to form a convection heat dissipation air channel, and the heat of the LED 6 is conducted through the heat conduction column 5 and passed through the heat conduction column 5 The convection heat dissipation air duct dissipates heat to the outside world. Several heat dissipation stretching strips 50 are...

Embodiment 3

[0029] Such as Figure 7 As shown, the difference between the convective heat dissipation LED light bulb of this embodiment and the second embodiment lies in: the shape of the transparent cover 2, in this embodiment, the height of the transparent cover 2 is slightly smaller, and the size of the bottom opening is bigger.

[0030] The rest of the features of this embodiment are the same as those of the second embodiment.

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Abstract

The invention discloses a convection radiating type LED (light-emitting diode) bulb which has a small radiator, large light-emitting area and a good heat dissipation effect, and comprises a lamp head (1), a light-transmitting shade (2), a ventilation body (3), a drive circuit (4) and a heat conduction column (5) provided with a hollow cavity, wherein the ventilation body (3) is connected with the lamp head (1) and the light-transmitting shade (2) respectively; the outer wall of the heat conduction column (5) is provided with a plurality of LEDs (6); the top of the light-transmitting shade (2) is provided with a ventilation opening (21); the ventilation body (3) is provided with a plurality of ventilating slots (31) or a plurality of ventilation holes (32); the ventilating slots (31) or the ventilation holes (32) are communicated with the hollow cavity of the heat conduction column (5) and the ventilation opening (21) sequentially so as to form convection radiating air ducts; and the heat of the LEDs (6) is conducted through the heat conduction column (5) and dissipated to the outside world through the convection radiating air ducts. The convection radiating type LED bulb can be widely applied to the field of LED bulbs.

Description

technical field [0001] The invention relates to an LED light bulb. Background technique [0002] At present, in the field of lighting, LEDs have been more and more widely used in light sources for lighting because of their advantages such as energy saving, high luminous efficiency, long life, and fast start-up. Due to the directional nature of LED light, it does not emit light at 360° like CFL and incandescent lamps. Therefore, when LEDs are used as light sources to replace traditional incandescent lamps or CFL light sources, their application effects are limited to a certain extent. Existing LED light bulbs generally use exposed radiators for heat dissipation. In order to meet the requirements of heat dissipation, the radiators are often large, which affects the light-emitting area. Paradoxically, to ensure the heat dissipation area, the light-emitting area must be sacrificed. The current common practice is to make the light-emitting surface into a hemisphere. Even so, the...

Claims

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Application Information

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IPC IPC(8): F21S2/00F21V29/00F21Y101/02F21V29/503F21V29/83
Inventor 张夙敏
Owner CE LIGHTING
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