Special power light-emitting diode for road lamp

A light-emitting diode, power-type technology, applied in the direction of circuits, electrical components, electric solid-state devices, etc., can solve problems such as difficult large-scale production, black spots on the road surface, low brightness, etc., to achieve the elimination of local black spots, good heat dissipation structure, The effect of improving light efficiency

Active Publication Date: 2007-08-22
河北禄和交通工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The semiconductor street lamps developed by the above methods generally have disadvantages such as low luminous flux, low brightness, uneven illumination, black spots on the road surface, etc., it is difficult to control product quality, and it is difficult to form large-scale production

Method used

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  • Special power light-emitting diode for road lamp
  • Special power light-emitting diode for road lamp

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Experimental program
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Embodiment Construction

[0012] As shown in FIG. 1, a reflective cavity 14 is provided on the heat sink 13. The reflective cavity 14 is a wedge-shaped structure with a large upper and a smaller bottom. The bottom plane is a rectangular plane, which is parallel to the upper surface of the heat sink, and the long sides are the same as those of the present invention. The two leads 17 of the special power LED for street lamps are connected to a solid vertical; the inner surface of the reflective cavity 14 is uniformly gold-plated or silver-plated, which can enhance the light-emitting efficiency of the diode; the reflective cavity 14 is pasted on an edge with two vias and inside The surface is evenly coated with a flat glass plate with YAG phosphor; there is a screw with a standard screw under the heat sink 13, which can be easily installed on the heat sink and has a good heat dissipation effect; the upper surface and the lower surface of the heat sink 13 form an α Therefore, the central light-emitting axis of...

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PUM

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Abstract

This invention discloses a kind of special power LED of street lamps composed of a large power LED chip, a heat sink, metal wire, a transparent glass board, transparent packaged resin and metal lead, in which, a reflection cavity is set on the heat sink, at least one large power LED chip is adhered in the reflection cavity in insulation to be connected with the metal lead led out from the through hole of the heat sink, a screw with a standard thread is under the heat sink, the reflect cavity is in a cuniform structure of large top and small bottom and its bottom plane is a rectangle, the top and bottom surfaces of the heat sink form an angle of alpha, so a power LED special for street lamps is formed with an irradiation angle of 90deg-alpha to the level and almost quadrate irradiation sphere, and the irradiation angle can be changed by changing alpha.

Description

[0001] Field [0002] The invention relates to a special power light-emitting diode for street lamps, belonging to the field of light-emitting diodes, and applied to street lamps for road lighting. Background technique [0003] Since the 1960s, semiconductor light-emitting diodes (LEDs) have low working voltage, low power consumption, high luminous efficiency, extremely short response time, impact resistance, vibration resistance, stable and reliable performance, pure light color, non-toxic and harmless , Small size and other characteristics and advantages, in just a few decades, has been widely used in various daily life products and equipment. Especially in recent years, the development of various color light-emitting diodes has been successful, and light-emitting diodes are used in various display, signal lights, display screens and landscape lighting fields. With the successful development of high-power light-emitting diodes, the continuous improvement of light efficiency makes...

Claims

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Application Information

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IPC IPC(8): H01L33/00H01L23/367
CPCH01L2924/0002H01L2224/48091
Inventor 苑宝义
Owner 河北禄和交通工程有限公司
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