Method for manufacturing radiator of LED street lamp

Abstract

The invention discloses a method for manufacturing a radiator of a light-emitting diode (LED) street lamp, by which the radiator is processed easily, the cost is low, and the finished product has a high heat radiation speed and high efficiency. The method comprises the following steps of: stamping sheets made of aluminum to form fins, and stamping installation through holes and elliptic through holes on the fins; stamping the sheets made of aluminum to form layer partition plates of which the areas are much smaller than those of the fins and stamping installation through holes on the layer partition plates; allowing bolts to pass through the installation through holes to superpose and fasten the fins and layer partition plates which are adjacent in pairs so as to form heat dissipation assemblies; and pressing the aluminum base plate provided with an LED circuit board against the heat dissipation assemblies for connection. By the scheme, the production efficiency is high, cost is low, and economic benefit is high; and specifically, the heat transfer effect is good, the assembly process is simple and the method is suitable for large-scale production and use.

Description

technical field [0001] The invention relates to a manufacturing method of a high-efficiency multi-directional convection LED street lamp radiator. Background technique [0002] For LED street lamps, the quality of the radiator directly affects the light decay of the lamp bead and its service life. Only by solving the heat dissipation problem as much as possible can the speed of light decay be suppressed, the life of the street lamp be extended, and the effect of energy-saving lighting of the LED street lamp be exerted. Due to the limited working conditions of LED street lamps, the heat dissipation method can only adopt natural convection. [0003] The heat dissipation methods of LED street lamps in the prior art are natural heat dissipation through unidirectional convection of the aluminum alloy lamp housing, and natural heat dissipation of aluminum extrusion and die-casting heat dissipation aluminum. The row position limitation, the aluminum extrusion process cannot make t...

AI Technical Summary

Problems solved by technology

[0003] The heat dissipation methods of LED street lamps in the prior art are natural heat dissipation through unidirectional convection of the aluminum alloy lamp housing, and natural heat dissipation of aluminum extrusion and die-casting heat dissipation aluminum. The row position limitation, the aluminum extrusion process cannot make the hole position perpendicular to the extrusion direction; according to the row position limitation of the die-casting mold, it is difficult for the die-casting mold to make the hole position perpendicular to the mold release direction

As a result, multi-directional convection flow cannot be formed inside the radiator

The heat dissipation characteristics of the LED street lamp itself, the characteristics of natural heat dissipation, and the permeability of the aluminum material used cause the heat dissipation coefficient to be different accordingly, and there are technical problems of slow heat dissipation and low efficiency.

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