LED (light emitting diode) light fixture with efficient light distribution

Abstract

The invention discloses an LED (light emitting diode) light fixture with efficient light distribution. The light fixture comprises an outer frame; one end of the outer frame is provided with a connection handle; the connection handle is provided with a hole; the outer frame is fixed on an arm shoulder of a lamp rod through the hole of the connection handle and a fastening piece; the outer frame can rotate around the fastening piece in the hole; each lamp bead unit body is positioned in the outer frame and is parallel with the direction of the connection handle; each lamp bead unit body can rotate around the axis; the number of LED lamp beads which are installed in each column of lamp bead unit body increases sequentially from the inside column to the outside column; a cooling fin is fixed at the back surface of the emergent surface of each lamp bead unit body; and clearances are arranged between every two lamp bead unit bodies and between the lamp bead unit bodies and the outer frame. By adopting a frame-type structure, clearances are arranged between the lamp bead unit bodies and the outer frame, which is convenient for air flow, and plays a role of sufficient heat convection, and the cooling effect of the outer frame of the light fixture is increased maximally; not only is the light fixture convenient to manufacture, but also the cost is lowered obviously; and the light fixture is mainly used for road lighting.

Description

technical field [0001] The invention relates to a lamp for an LED lamp. Background technique [0002] Known LED lamps, in order to achieve the best light distribution effect, make the light spot rectangular and make the illuminance uniformity in the light spot area reach the standard, most of them use lenses to guide the light. Although this can play a certain effect, but because the lens is used This results in a loss of about 20% of the luminous flux. [0003] There are also those who give up the use of light guide lenses for light distribution, but either the method is single, or the structure is complicated or unreasonable, and the final effect is always unsatisfactory. For example: [0004] No. 200810001878 "LED street lamp light distribution system" invention patent, which is composed of LED light-emitting unit and LED light-emitting unit mounting seat. The part of the mounting seat in contact with the LED light-emitting unit is composed of several fixed surfaces, an...

AI Technical Summary

Problems solved by technology

Although this utility model adopts an open frame structure, which can enhance heat dissipation and reduce weight, its purpose is only for the replacement of LED modules, and it is not used for light distribution, so the value is not high

In addition, the structure is complex

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