LED lighting device

Abstract

The invention relates to the field of LED lighting, and particularly provides an LED lighting device. The LED lighting device comprises a transparent outer shell, an LED luminescent device and a support, wherein the transparent outer shell and the support form a closed cavity and the LED luminescent device is located inside the cavity and fixed onto the support. The LED lighting device is characterized in that the cavity is filled with inert gas which is used for transmitting heat generated by the LED luminescent device to the outer portion of the transparent outer shell. According to the LED lighting device, through the inert gas arranged in the cavity in a filled mode, the heat generated by the LED luminescent device can be transmitted to the outer portion of the LED lighting device without adopting a heat dissipation body, and therefore the shape, the size and the weight of the LED lighting device cannot be limited by the heat dissipating body. Thus, the attractiveness, the safety and the installation convenience of the LED lighting device can be improved.

Description

technical field [0001] The invention relates to the field of LED lighting, in particular to an LED lighting device. Background technique [0002] In recent years, with the trend of energy conservation and environmental protection becoming more and more significant, LED lighting devices have replaced incandescent lamps and fluorescent lamps, and even high-power light sources such as iodine-tungsten lamps and high-pressure sodium lamps have begun to develop from local applications, especially in the field of lighting. , LED lighting devices are more and more widely used, and are regarded as one of the main light sources of future lighting. However, the light output of existing LED lighting devices only accounts for 20%-30% of the energy generated, and the remaining 70%-80% of the energy is all used to generate heat without being utilized. Moreover, the unoutputted light A large amount of heat will be generated inside the LED lighting device, which not only reduces the service...

AI Technical Summary

Problems solved by technology

However, the light output of existing LED lighting devices only accounts for 20%-30% of the energy generated, and the remaining 70%-80% of the energy is all used to generate heat without being utilized. Moreover, the unoutputted light A large amount of heat will be generated inside the LED lighting device, which not only reduces the service life of the LED lighting device, but also limits the application function of the LED lighting device due to the inability to use large power

[0003] For this reason, in order to suppress the internal temperature of the LED lighting device from being too high, the heat generated by the LED light-emitting device installed in the LED lighting device is usually conducted to the outside of the LED lighting device by means of a heat sink. However, since the heat dissipation efficiency of the heat sink depends on The size of its surface area, that is: the larger the surface area of ​​the heat sink, the higher the heat dissipation efficiency, and vice versa, the lower. Therefore, the volume of the heat sink often limits the shape, size and weight of LED lighting devices, especially in LED lighting. When the device needs to use higher power, due to the more heat generated inside it, the volume of the heat sink must be increased accordingly, which leads to LED lighting devices compared with traditional lighting devices such as incandescent lamps. The appearance is quite different, and the LED lighting device has defects such as large size and heavy weight, which further reduces the aesthetics, safety and installation convenience of the LED lighting device

Images