LED bulb lamp

Abstract

The invention discloses an LED bulb lamp which comprises a lamp holder, a drive circuit board, an LED light source module, metal sheets, a glass lamp housing ,an isolation body, and transparent liquid, wherein a main sealing cavity formed by the glass lamp housing and the isolation body is filled with the transparent liquid, the LED light source is immersed in the transparent liquid under the support of the two metal sheets, the upper and lower sections of the two metal sheets are respectively and electrically connected with the LED light source and the drive circuit board, the middle sections of the two metal sheets are embedded into a sealing body, and the drive circuit board is arranged in the lamp holder at the top end of the lamp housing and is conducted with the lamp holder. The transparent liquid is adopted to replace a heat conduction silicone grease and a heat conduction substrate in the conventional LED bulb lamp, and the glass lamp housing is adopted to replace a metal radiator, so that the heat transfer efficiency and the reliability of the LED light source are greatly improved, the material is greatly saved, the process is simplified, and the cost is lowered. The cost of the LED bulb lamp is reduced to be basically the same as the cost of a compact fluorescent lamp from the cost which is 1-2 times higher than that of the compact fluorescent lamp, the whole LED bulb lamp can almost completely utilize the original bulb materials, process and equipment, the production efficiency is improved, and the equipment investment is saved.

Description

technical field [0001] The invention relates to an LED lamp, in particular to an LED bulb lamp with high heat dissipation efficiency and low manufacturing cost. Background technique [0002] White LED bulbs are new energy-saving lamps that replace traditional incandescent bulbs. Traditional incandescent lamps (tungsten filament lamps) have high energy consumption and short lifespan. Under the environment of tight global resources, the production of them has been gradually banned by governments of various countries. The replacement products are electronic energy-saving lamps. Although electronic energy-saving lamps have improved the energy-saving effect , but due to the use of many heavy metal elements that pollute the environment, it is contrary to the general trend of environmental protection. With the rapid development of LED technology, LED lighting has gradually become the best choice for new green lighting. LED is far superior to traditional lighting products in terms...

AI Technical Summary

Problems solved by technology

Therefore, it can be seen that the weakest link in the heat dissipation of LED bulb lamps is not the heat sink, but the heat transfer between the heat conduction substrate and the heat sink. If the heat is transferred to the radiator, the LED lamp beads will generate serious heat accumulation, resulting in the light decay and even failure of the LED lamp beads.

Unfortunately, there is currently no means to replace silicon heat-conducting adhesive. The heat dissipation effect of the LED external radiator is difficult to be fully utilized. No matter how to change the design of the radiator and lamps, it is impossible to fundamentally change the heat dissipation problem of the LED bulb lamp.

[0008] In addition, from the current technology, the radiator of LED light source is basically made of aluminum material with high thermal conductivity, and the radiator of each LED bulb lamp needs at least about 50cm 3 , 150 grams, only the cost of raw materials, processing, and molding costs of the radiator itself has exceeded the current sales price of the entire compact energy-saving lamp. main bottleneck

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