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Light-emitting diode (LED) street lamp structure, LED lamp cap and cooling method of LED lamp

A technology of LED street lamps and lamp holders, applied in lighting and heating equipment, cooling/heating devices of lighting devices, circuit layout, etc., can solve the problems of affecting the effect of heat dissipation, increasing costs, and accelerating damage to parts, so as not to waste electricity, Ease of cleaning

Inactive Publication Date: 2011-05-25
GUIZHOU SHIJI TIANYUAN MINING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This design has a disadvantage: because there are many holes in the lampshade, rainwater, dust and insects can easily enter the interior of the lamp, which not only affects the heat dissipation effect, but also accelerates the damage of the parts in the lamp, which increases the use and maintenance virtually. cost on

Method used

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  • Light-emitting diode (LED) street lamp structure, LED lamp cap and cooling method of LED lamp
  • Light-emitting diode (LED) street lamp structure, LED lamp cap and cooling method of LED lamp
  • Light-emitting diode (LED) street lamp structure, LED lamp cap and cooling method of LED lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] figure 1 It is a structural schematic diagram of the LED lamp holder 20 of the present invention. Lamp holder 20 basically includes lamp housing 21, LED lighting assembly 25, light-transmitting cover 22, heat sink 23, air inlet 27 and air outlet 28, except that there are air inlet 27 and air outlet 28 on both sides, coated on The upper lamp housing 21 and the lower light-transmitting cover 22 form a closed space as a whole. This design is obviously different from the practice of drilling holes in the lamp housing by using natural convection as a heat dissipation method in the prior art. The heat dissipation method adopted in the present invention is forced convection, that is, the filtered air is injected into the air inlet 27 to perform heat exchange with the air as a medium, and the heat generated by the LED lamp is taken away from the air outlet 28 through the air.

[0015] Arrows on the gas inlet 27 indicate the gas flow direction. An air filter or the like (such ...

Embodiment 2

[0021] figure 2 It shows a lamp base in which the lamp housing and the heat sink are integrally cast according to an embodiment of the present invention. figure 2 (a) shows a side view of the lamp cap; and figure 2 (b) in (b) shows its bottom section.

[0022] The lamp cap of the second embodiment is substantially the same as that of the first embodiment, the difference is only in the shape of the lamp housing 21, whether a fan 26 is installed near the air inlet 27, and whether the lamp housing 21 and the heat sink 23 are integral castings. The lamp head can include a temperature sensor 29, so as to transmit the internal temperature data of the lamp head 20 to a controller (not shown), and then adjust the temperature inside the lamp head 20 by the size of the air flow, so as to prevent the LED lighting assembly 25 from being damaged due to the high temperature environment. Fault. Preferably, the lamp housing 21 and the heat sink 23 are made of magnesium, aluminum or allo...

Embodiment 3

[0024] Such as image 3 As shown, in this embodiment, the LED street lamp structure of the present invention includes three parts: a hollow pole 10 , a lamp holder 20 and a control unit 30 . Lamp holder 20 basically includes lamp housing 21, LED lighting assembly 25, light-transmitting cover 22, heat sink 23, air inlet 27, air outlet 28 and movable cover 24; control unit 30 basically includes air inlet 32, air outlet 35 , fan 33, power board 34, air filter 37, gas flow sensor 36 and controller 31.

[0025] In the lamp holder 20, the lamp housing 21 and the light-transmitting cover 22 form the main space for accommodating the LED lighting assembly 25 and the heat sink 23; At this time, it means that cooling air flows into the lamp cap 20), and then it will be opened outwards to facilitate air discharge. It should be noted that a filter screen can be used to replace the movable cover 24, or both the movable cover and the filter screen can be used, as long as the design that pr...

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PUM

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Abstract

The invention discloses a light-emitting diode (LED) street lamp structure, an LED lamp cap and a cooling method of an LED lamp. The LED street lamp structure comprises a lamp cap, a control unit, a hollow electric pole and a fan, wherein the lamp cap comprises a lamp shell, an LED light-emitting element, a transparent cover, a cooling fin, a second gas inlet, a second gas outlet, a movable cover and / or a filter screen; the lamp shell and the transparent cover form a space for accommodating the LED light-emitting element and the cooling fin; the movable cover and / or the filter screen is arranged on the outer side of the second gas outlet; the control unit comprises a first gas inlet, a first gas outlet, a gas filter and a controller; the gas filter is arranged on the inner side or the outer side of the first gas inlet; the controller is used for controlling the gas flow in the LED street lamp structure; two ends of the hollow electric pole are connected with the first gas inlet and the second gas inlet respectively to form a gas passage between the lamp cap and the control unit; and the fan is arranged in the control unit and / or the lamp cap and rotates to generate gas flow. The LED street lamp structure, the LED lamp cap and the cooling method of the LED lamp are helpful for prolonging the service life of the LED lamp to further save the cost and resources.

Description

technical field [0001] The invention relates to a sealed LED street lamp structure, in particular to an improved sealed LED street lamp structure which can dissipate heat by means of forced convection and can prevent dust and insects. Background technique [0002] Traditional street lamps use bulbs or mercury lamps as light-emitting components, so there are problems of serious energy consumption and short service life; in order to improve the above problems of traditional street lights, street lights using LEDs as light-emitting components have been developed. [0003] Using LED lights with low power consumption, high lighting brightness and long life to replace traditional light bulbs or mercury lamps can effectively solve the above problems, but if the internal temperature of the lamps rises due to poor heat dissipation, high-power LED chips may occur. Light attenuation shortens its service life or the lamp may be damaged as a result. Therefore, "heat dissipation" is a ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V15/02F21V29/00F21V29/02F21V23/00F21W131/103F21Y101/02F21V29/60F21V29/74F21V29/89F21Y105/16F21Y115/10
CPCF21V15/011F21S8/086F21V29/225F21Y2101/02F21W2131/103F21V29/027Y02B20/72F21V29/507F21V29/677F21V29/763F21Y2115/10
Inventor 黄贵明
Owner GUIZHOU SHIJI TIANYUAN MINING IND
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