Cooling device of LED (light slight-emitting diode) light source and LED (light-emitting diode) light source

Abstract

The invention discloses a cooling device of an LED (light slight-emitting diode) light source, and the cooling device comprises a cup body, wherein a glowing LED is arranged at the interior of the cup body, the inner wall of the cup body is used for reflecting lights, and the outer wall of the cup body is used for heat dissipation. The cooling device is characterized by comprising a cover body sleeved on the exterior of the cup body, wherein a cavity is arranged between the inner wall of the cover body and the outer wall of the cup body and used for ventilating, and a ventage is positioned on the upper part and lower part of the cover body and communicated with the cavity; the cooling device also comprises a turbine-shaped fan blade driven by flowing air, and the fan blade is erected on the ventage; the cover body is sleeved on the cup body so as to form a heat dissipation structure with a 'chimney effect', thereby accelerating the heat dissipation of the outer wall of the cup body and achieving a good heat dissipation effect; and the turbine-shaped fan blade is arranged on the ventage on the upper part or lower part of the cup body, the heat energy emitted by the glowing LED is converted into the kinetic energy for the rotation of the fan blade, and the conversion of the energy accelerates the distribution and diversion of the heat energy.

Description

【Technical field】 [0001] The invention belongs to the technical field of heat dissipation devices, and relates to a heat dissipation device of a small-sized high-power LED light source (such as a high-power MR16 LED spotlight) and an LED light source with the heat dissipation device. 【Background technique】 [0002] Although the LED light source is a cold light source, it will generate a certain amount of heat when it is powered on, and when the heat cannot be dissipated in time, the temperature of the LED light source will gradually increase, and the stable operation of the LED (light-emitting diode) The temperature range is -40°C to 80°C. If the heat cannot be dissipated effectively, it will greatly affect the product performance and service life of the LED light source. [0003] The MR16 LED spotlight is a small-sized light source with a multi-faceted reflector. The low-power MR16 LED spotlight generates relatively little heat, so there is no need to consider the heat diss...

AI Technical Summary

Problems solved by technology

The heat dissipation device mainly relies on the power of the fan blades to extract the hot air, and then fills in the cold air into the ventilation cavity to achieve the purpose of heat dissipation. Since the fan blades are driven by electricity, it is obviously a waste of electric energy, which is not conducive to environmental protection.

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