Light-emitting diode lamp

Abstract

The invention discloses a light-emitting diode lamp which comprises a heat radiating part, an optical part and an electric part. The heat radiating part comprises a heat exchange loop device. The heat exchange loop device comprises a first heat radiator, a heat absorber plate, a second heat radiator, a first cover plate, a heat-insulating element and an annular second cover plate. The first heat radiator, the heat absorber plate, the second heat radiator, the first cover plate and the second cover plate form a closed first cavity body; and a second cavity body opened toward a top end is formed in the second heat radiator. A capillary structure is arranged on the surface of a side wall inside the first cavity body. A working fluid is filled in the capillary structure. The heat-insulating element is arranged in the first cavity body and between the first cover plate and the heat absorber plate. The heat-insulating element comprises a heat-insulating plate which is arranged near the first cover plate and provided with a plurality of through holes. The heat-insulating plate of the heat-insulating element can effectively prevent a reflowing low-temperature condensate from being in contact with reverse high-temperature saturated steam directly for heat transfer to increase the flow resistance and the heat resistance of the condensate reflowing to an evaporation part.

Description

technical field [0001] The invention relates to a light-emitting diode lamp, in particular to a light-emitting diode lamp with high heat dissipation efficiency. Background technique [0002] People's long-term over-reliance on fossil fuels not only causes energy shortages and high oil prices and hinders economic development, but also increases the concentration of global carbon dioxide and harmful gas emissions, leading to climate abnormalities caused by global warming, ecological environment damage, And the harm to human survival is becoming more and more obvious. In order to sustainably manage the earth's ecological environment on which human beings depend, it is necessary to solve the energy crisis and environmental pollution problems at the same time. The development of new energy and renewable energy is the most important way to promote energy conservation and efficient use of energy. strategy, while traditional lighting consumes a considerable amount of energy, the dev...

AI Technical Summary

Problems solved by technology

[0004] The application of high-power and high-brightness LEDs in the new light source of lighting must be combined with a high-efficiency heat dissipation mechanism to minimize the junction temperature of the LEDs in order to take advantage of the above advantages, otherwise the luminous brightness, lighting quality, and service life of the lighting device will be greatly reduced. , the impact will make the energy-saving effect of the lighting device not obvious, and directly impact the reliability of the lighting device, causing serious light decay and even making the lighting device invalid

[0005] Existing semiconductor lighting devices attempt to increase the heat dissipation area of ​​the heat released when the light source emits light, but at the same time cause the heat sink to be overweight and small in size.

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