Sealed internal-circulation-forced LED (light-emitting diode) lamp

Abstract

The invention discloses a sealed internal-circulation-forced LED (light-emitting diode) lamp. The lamp comprises a substrate, a fan, a sleeve frame and an outer cover, wherein the front face of the substrate is provided with a plurality of LED lamp bulbs, the fan is arranged at the back face or the side face of the substrate, the sleeve frame encloses at least one part of the fan, an air inlet is arranged around or behind the fan, the sleeve frame is provided with an air outlet in the blowing direction of the fan, and all the assemblies are enclosed and sealed by the outer cover. By arranging the fan in the sealed internal-circulation-forced LED lamp with the incorporation of the sleeve frame in the invention, the air in the sleeve frame can flow with the air outside the sleeve frame relatively when the fan rotates, so that the heat produced by the LED can be taken away, thereby distributing the internal temperature uniformly and preventing the LED luminous efficiency from lowering or a product from being burnt out as a result of the local overheating phenomena occurring near the LED lamp bulbs.

Description

technical field [0001] The invention relates to an LED sealed lamp with a forced circulation function inside. Background technique [0002] Common sealed LED lamps do not have internal forced circulation. like figure 1 As shown, the LED bulb 10 is placed on the base material 11, and the sealed outer cover 18 wraps the LED bulb 10 and the base material 11; the LED bulb 10 will generate heat during operation, and this kind of LED bulb lacks heat dissipation design, and the LED bulb 10 is prone to local overheating Phenomenon, when the ambient temperature rises, in addition to reducing the luminous efficiency of the LED light bulb 10, it also reduces the life of the LED light bulb 10. [0003] Although the follow-up products have been improved, most of the improved designs are to add fin-shaped heat sinks outside the sealed outer cover 18 to improve the heat dissipation effect. This improved structure for strengthening heat dissipation has a limited increase in the heat dissi...

AI Technical Summary

Problems solved by technology

like figure 1 As shown, the LED bulb 10 is placed on the base material 11, and the sealed outer cover 18 wraps the LED bulb 10 and the base material 11; the LED bulb 10 will generate heat during operation, and this kind of LED bulb lacks heat dissipation design, and the LED bulb 10 is prone to local overheating Phenomenon, when the ambient temperature rises, in addition to reducing the luminous efficiency of the LED bulb 10, it also reduces the life of the LED bulb 10

[0003] Although the follow-up products have been improved, most of the improved designs are to add fin-shaped heat sinks outside the sealed outer cover 18 to improve the heat dissipation effect. This improved structure for strengthening heat dissipation has a limited increase in the heat dissipation effect and still cannot completely solve the problem of sealing. Local overheating due to uneven temperature inside the lamp, resulting in the luminous efficiency and life of the product not as expected

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