Heat pipe cooling device for led street lamp with centrifugal condenser

Abstract

A heat pipe cooling device for LED street lamps with a centrifugal condenser fundamentally solves the problem that existing heat pipe radiators cannot fully exert the heat dissipation effect due to structural limitations. The technical points are: including a centrifugal condenser; the centrifugal condenser includes a tubular body, upper and lower end covers, and heat dissipation fins uniformly distributed on the outer wall of the tubular body; a heat dissipation cavity is arranged inside the base plate, and the heat dissipation cavity passes through the air intake pipe It is connected to the upper end of the centrifugal condenser, and the inlet pipe is connected to the inner wall of the tubular body of the centrifugal condenser along the tangential direction, and the centerline of the end of the inlet pipe connected to the tubular body and the horizontal plane form an angle of 0~-15° , the lower end of the centrifugal condenser is connected back to the heat dissipation chamber by the liquid return pipe; the air inlet pipe, the liquid return pipe, the centrifugal condenser and the heat dissipation chamber are sealed and connected, and the heat dissipation chamber is evacuated and filled with working fluid by the liquid filling pipe. The invention has the characteristics of fast heat dissipation speed, large heat dissipation capacity, no restriction on the size of the lamp housing, low cost and the like in the heat dissipation area.

Description

technical field [0001] The invention relates to a heat pipe radiator, in particular to a heat pipe radiator for an LED street lamp with a centrifugal condenser. Background technique [0002] Due to the advantages of high brightness, environmental protection, energy saving, good directionality, and fast response, LED lamps are considered to be a substitute for traditional light sources and have begun to be widely used in many fields. However, LED is a photoelectric device, only 15%-25% of the electrical energy is converted into light energy during its operation, and the rest of the electrical energy is almost all converted into heat energy, which increases the temperature of the LED junction. Usually the temperature of the LED junction is considered to be the temperature of the LED. The higher LED junction temperature has many adverse effects on LED lamps: 1. It affects the life of LED lamps. The life of an LED lamp is defined as the time it takes for the luminous flux to d...

AI Technical Summary

Problems solved by technology

It fundamentally solves the problem that the existing heat pipe radiator cannot give full play to the heat dissipation effect due to structural limitations, and has the advantages of reducing the temperature of the LED junction and power supply, slowing down its light decay speed, thereby improving the life and quality of LED lamps and reducing costs.

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