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LED road lamp

A technology of LED street lamps and lamp holders, which is applied in the field of non-portable lighting devices or its systems, can solve the problems of increasing the failure rate of the whole lamp, and achieve the effect of convenient light source, low cost and low light decay

Inactive Publication Date: 2008-05-28
福建日同辉太阳能应用技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing LED street lamps usually work at an ambient temperature exceeding 70 degrees, and adopt a multi-group series design. If one fails, the whole lamp will fail, which greatly increases the failure rate of the whole lamp.

Method used

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  • LED road lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, as shown in Figure 1 and Figure 2, an LED street lamp includes a power supply, a light pole 1, and a lamp cap 6. The lamp cap 6 is fixed with a heat sink 3, and the LED 2 is directly connected to the heat sink 3, and the heat sink 3 is an integral Consisting of a thin aluminum plate, the surface is smooth and electroplated into a mirror surface. The cooling plate 3 is in the shape of a concave arc cylinder, and the included angle of the arc is 90--130 degrees. According to the working voltage and power supply voltage of the LED, make a reasonable arrangement. If the 220 volt mains is used as the power supply, the voltage can be reduced to a multiple of 3.2 volts through the transformer system to make several LEDs in series or directly use 3.2 volts for LEDs to be used in parallel; When solar energy is used as a power source, the battery is an energy storage device. Without changing the voltage of the existing traditional battery, a voltage divider resistor...

Embodiment 2

[0019] Embodiment 2, the cooling plate 3 is made of a whole piece of mirror aluminum plate, when the voltage of the battery is 12 volts, 3 LEDs and a voltage dividing resistor are connected in series to form a string; several strings of LED2 are connected in parallel to form a strip, and every two LED2 form a group Fixed on the cooling plate 3, each group has an equal interval 4, the light emitting angle of the spotlight LED is 15±3 degrees, the light emitting angle of the flat light LED is 120±5 degrees, and the arc angle of the heat sink 3 is 120± 5 degrees.

[0020] Other unmentioned parts are the same as the above example.

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Abstract

The invention relates to a non portable lighting device or a system of the lighting device, particularly belonging to an LED lamp light. The invention relates to an LED road lamp, comprising a power supply, a lamp stand, and a lamp holder. The invention is characterized in that the lamp holder is provided with a cooling plate, and an LED is directly connected with the cooling plate. The advantages of the invention lie in that the LED with a professional design has smaller light decay under the working environmental temperature within 30 DEG C, so the service life of the LED can reach over 30-50 thousand hours, lights which are generated by the LED are processed by a second optics through utilizing a mirror reflection, and the higher light flux enables the LED lamp to be brighter 50% than an LED lamp with same power which is assembled in small power, and the height of the lamp stand can reach to 6-12m, the service life is long by adopting group series, the cost is cheaper 50% than a current LED road lamp, the change of the light source of the original road lamp is convenient, the maintenance is convenient, and the maintenance cost is low.

Description

technical field [0001] The invention belongs to a non-portable lighting device or its system, especially to an LED street lamp. Background technique [0002] Due to the high brightness and power saving of LED, it has been widely used in various lighting facilities in recent years. For example, ZL200620013271.1 mentioned that LED is used as the light source of solar street light, but it only considers the directionality of LED light source, but does not Considering that the heat dissipated by densely arranged LED light sources during the lighting process is huge, 1000 / M 2 The LED is powered on for 10 minutes, and the ambient temperature is above 70 degrees, and the temperature above 60 degrees will accelerate the light decay of the LED, which has a great impact on its life. For example, the theoretical life of a single LED is 100,000 hours below 60 degrees, and the light decay is 50% of the initial value, but when the temperature exceeds 60 degrees, its life is only 3000--50...

Claims

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Application Information

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IPC IPC(8): F21S8/08F21V29/00H01L23/36F21S9/03F21V23/02F21W131/103F21Y101/02F21V29/503F21V29/70F21Y107/10F21Y115/10
CPCY02B20/72
Inventor 聂庆华
Owner 福建日同辉太阳能应用技术有限公司
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