LED illumination bulb and heat dissipation seat thereof

Abstract

The invention discloses an LED illumination bulb, comprising a lamp holder, a heat dissipation seat, an LED lamp panel and a lampshade. The heat dissipation seat is installed at the upper end of the lamp holder, the LED lamp panel is installed at the upper end face of the heat dissipation seat, and the lampshade covers the LED lamp panel from outside. The heat dissipation seat comprises a plastic sleeve and heat dissipation fins, wherein the heat dissipation fins are fixedly installed outwards on the periphery of the plastic sleeve in a radial array mode, the upper end of each heat dissipation fin is provided with a lapping piece, the lapping piece exposes outside the upper end face of the plastic sleeve, and the lamp panel abuts against the lapping piece. Therefore, the heat dissipation fins are fixedly installed on the plastic sleeve to form the heat dissipation seat body. The LED illumination bulb and the heat dissipation seat has insulating performance and light weight, can effectively reduce the use level of heat dissipation materials and can reduce the heat dissipation seat and the manufacturing cost of the LED illumination bulb. In addition, by utilizing the lapping piece, the contact area of the heat dissipation fins and a heat conduction plate is large so that the heating area of the heat dissipation fins can be increased, and the heat dissipation performance is better.

Description

technical field [0001] The invention relates to the technology in the field of lighting bulbs, in particular to an LED lighting bulb with low cost and good heat dissipation performance and a cooling seat thereof. Background technique [0002] Traditional light bulbs are incandescent light bulbs with low illuminance, dim light and no energy saving. After incandescent light bulbs, fluorescent light bulbs appeared. Although they are energy-saving and have brighter light, they are not environmentally friendly due to the large amount of fluorescent powder used. At present, there are more energy-saving and environmentally friendly LED light sources, and LED bulbs are produced accordingly. The existing LED bulbs are generally complex in structure, and the main components include lamp holders, insulators, circuit boards, heat sinks, lamp bodies and lampshades. All are standard parts, the lamp cap covers the lower end of the insulator, the upper end of the insulator is fixedly conne...

AI Technical Summary

Problems solved by technology

This kind of aluminum extruded heat sink, due to the limitation of process technology, the heat sink of this heat sink is made thicker, and more aluminum materials are used, which is still not conducive to reducing the manufacturing cost

Although this type of finned heat sink uses less aluminum material, its manufacturing process is relatively cumbersome and requires more time and manpower, which is still not conducive to reducing manufacturing costs.

[0005] Moreover, the above three manufacturing methods have a common disadvantage: they do not have insulation themselves, and the circuit board cannot be directly installed inside them, and an additional insulator is required to isolate the circuit board from the heat sink, which makes the assembly more cumbersome. The cost also increases relatively

Images