Straight tube type bulb lamp with chimney effect

Abstract

The invention discloses a straight tube type bulb lamp with chimney effect. The straight tube type bulb lamp with the chimney effect comprises a lamp holder, a substrate, an LED light source module, an LED driving power supply, a lampshade, a heat dissipating straight tube and a fixing support, wherein the LED driving power supply is electrically connected with the lamp holder and the substrate; the substrate is an annular structure and fixedly sleeves the heat dissipating straight tube; the LED light source module is mounted on an outer ring surface of the substrate; the lampshade is fixedly connected with the heat dissipating straight tube and covers the substrate with the LED light source module; the LED driving power supply is fixedly arranged in the lamp holder; the lampshade and the lamp holder are isolated from each other; the lamp holder is positioned outside the heat dissipating straight tube, and is fixedly connected with the heat dissipating straight tube and the lamp holder through the fixing support; a chimney channel is formed in a hollow inner hole of the heat dissipating straight tube; and two ports of the chimney channel are connected to the outside so as to achieve the chimney effect. The straight tube type bulb lamp with the chimney effect has the advantages that the traditional heat sink part can be omitted, the heat dissipating effect is good, the structure is simple and reasonable, and the practicability is high.

Description

technical field [0001] The invention relates to the field of LED lighting devices, in particular to a straight chimney effect LED bulb lamp capable of saving radiators. Background technique [0002] With the advancement of science and technology, LED light sources are more and more popular because of their advantages of high luminous efficiency, low cost, and no pollution, which are in line with national energy conservation and environmental protection. In order to achieve a higher light intensity, the power of the LED light source needs to be higher and higher, and the temperature of the LED light source is easy to rise, which will cause red shift of the LED spectrum, decrease in light efficiency, stress loss and short life. The heat dissipation problem of LEDs is an obstacle to the popularization of power LED light sources. [0003] Natural convection is recognized as the most reliable passive cooling method. Compared with active cooling methods, it has the advantages of ...

AI Technical Summary

Problems solved by technology

It has the following disadvantages: one, the radiator and the lamp holder are relatively fixed through the shell, and the shell will hinder the air from entering the lower port of the radiator from the outside, and the heat dissipation and convection effect is poor; second, the radiator has an upper part and a lower part, and the lower part is Cylindrical, the upper part is truncated to a pentagonal cone, and the lamp board is fixed on the pentagonal cone surface. The heat sink is equipped with heat dissipation fins (because the heat dissipation fins are fixed to form a heat sink), the structure is complex, the cost is high, and the space is large.

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