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Modularized high-power LED (light emitting diode) lamp naturally dissipating heat by utilizing air flow

A technology of LED lamps and natural heat dissipation, which is applied in lighting and heating equipment, gas-proof/waterproof devices, components of lighting devices, etc., and can solve problems that affect the working performance and life of LEDs, affect the heat dissipation efficiency of street lamps, and make on-site maintenance difficult. , to achieve the effects of improving maintainability, supporting technology upgrades, and improving heat dissipation

Inactive Publication Date: 2011-04-13
刘木清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the street lamp is working, it dissipates heat through the heat sink on the back of the street lamp. However, in order to improve the heat dissipation efficiency, the heat sink is usually directly exposed to the air, which makes it easy for oil and dust in the air to accumulate on the heat sink, which affects the heat dissipation efficiency of the street lamp. Affect the working performance and life of LED
At the same time, due to the requirements of the protection level, sealants and other methods are used to seal the LED and other components to form a whole that is difficult to disassemble, that is, the integral LED street lamp, so that on-site maintenance is very difficult.

Method used

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  • Modularized high-power LED (light emitting diode) lamp naturally dissipating heat by utilizing air flow
  • Modularized high-power LED (light emitting diode) lamp naturally dissipating heat by utilizing air flow
  • Modularized high-power LED (light emitting diode) lamp naturally dissipating heat by utilizing air flow

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Experimental program
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Effect test

Embodiment 1

[0042] Embodiment 1: as Figure 1-Figure 3 As shown, it is a modular high-power LED lamp with a simple frame structure. 1 in the figure is a frame with one or more hollows on a planar structure or an approximate planar structure, and one or several LED modules 2 are placed on the frame. The light emitting part of module 2 is just facing the hollow part of the frame, and the light is emitted from the hollow part of the frame when it is turned on. figure 2 As shown, the LED modules 2 are fixed on the light frame 1 at an appropriate distance, so that there is a gap between the adjacent LED modules 2, and there is also an appropriate gap between the LED module 2 and the light frame 1, which is Make the whole lamp form a certain air flow channel when working. The temperature at the heat sink on the back of the LED module is high, which makes the temperature of the air around it high, and the hot air rises to take away heat. Due to the traction effect of the airflow, that is, the...

Embodiment 2

[0045] Embodiment 2: as Figure 4 Shown is a schematic diagram of an LED street lamp with a top cover, 6 is a frame with multiple hollows in the plane structure on the lamp holder 1, and the LED modules 2 are fixed on the frame at an appropriate distance, and the light output of the module 2 The part is just facing the hollow part of each frame, and the light is emitted from the hollow part of the frame when it is lit, and the LED module 2 is fixed on the frame of the lamp holder 1 according to the appropriate distance, so that there is a gap between the adjacent LED modules 2. If there is a gap, there is also a proper gap between the LED module 2 and the frame 6 on the lamp holder 1; Each constant current output is connected through its own waterproof connector, and finally the upper cover 4 of the lamp is covered and fixed by a suitable mechanical device. Ventilation holes are left on the upper cover 4 of the light fixture such as Figure 4 As shown, the gap between these ...

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Abstract

The invention relates to a modularized high-power LED (light emitting diode) lamp naturally dissipating heat by utilizing air flow. The LED lamp comprises an LED module, a driver and a lamp frame, wherein the lamp frame is fixed with the LED module and the driver and is provided with an installation interface; one lamp can be composed of one or more LED modules; each LED module is provided with a negative camber with luminous intensity distribution; the driver outputs in a multipath constant current mode; the output of each path is connected with one LED module through a water joint; the lamp frame can only be in a frame structure which can fix the LED module and the driver and can be arranged outside, or can be in a frame structure which is provided with an outer cover and the like; and no matter the lamp frame is provided with the outer cover or not, the lamp is internally provided with a passage for air flow to go up so as to be convenient to dissipate heat. In the invention, the high-power white lamp LED is taken as a light source, and the negative camber with luminous intensity distribution is adopted to meet the luminous intensity distribution requirement of the lamp and the requirement of grade of IP protection so as to greatly reduce the design requirement and mounting difficulty of the lamp; and the passage for the air flow to go up in the lamp enables the air flow to form a heat dissipating passage, thereby greatly improving the radiating efficiency and ensuring the LED to work in a proper temperature range.

Description

technical field [0001] The invention belongs to the field of semiconductor lighting, relates to a LED as a light source, and in particular to a modular high-power LED lamp which utilizes air flow to dissipate heat naturally. Background technique [0002] With the continuous progress of LED manufacturing technology, its luminous efficiency has been continuously improved. Up to now, the luminous efficacy of high-power white LEDs in the laboratory has exceeded 190lm / W, and the luminous efficacy of mature products on the market has also reached more than 100lm / W. This luminous effect value demonstrates the potential of LEDs in high-power lamps such as road lighting, tunnel lighting, and factory and mine lighting. [0003] Compared with traditional light sources, LED has many unique advantages, such as small light-emitting point, easy optical design, and high lamp efficiency, so it has huge energy-saving potential compared with traditional light sources. In addition, LED has lon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V17/00F21V19/00F21V29/00F21V31/00F21Y101/02F21V29/508F21V29/71
Inventor 刘木清江程张万路
Owner 刘木清
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