How much do you know about LED street lamp design? The heat dissipation of led street lights is one of the problems that need to be solved, which is not only directly related to the luminous efficiency of led actual work, but also because of the high brightness requirements of led street lights, large heat output, and the outdoor use environment is harsh, if the heat dissipation is not good, it will directly lead to rapid aging of led and reduced stability. Because the road lamps used outdoors should have a certain level of dustproof and waterproof function (ip), good ip protection often prevents the heat dissipation of the led.

Preparation requirements for LED street lamp design

(1) The led radiator is used, but the design of the led wiring terminals and the radiator cannot reach ip45 or above grade, and cannot meet the requirements of gb7000.5/iec6598-2-3 standard.

(2) The use of ordinary road lamp shell, in the light of the lamp with matrix led, although this design can meet the ip test, but due to the lack of ventilation in the lamp will cause at work, the temperature of the lamp chamber will rise to 50 ° C ~80 ° C, in such a high working condition, the luminous efficiency of the led is impossible to be high, and the service life of the led will also be big Discount, in fact, there are obvious unreasonable circumstances.

(3) The instrument fan is used in the lamp to dissipate heat from the led and radiator, and the air inlet is designed under the lamp to avoid the entry of rain, and the air outlet is designed around the led light source. This can also effectively avoid the entry of rain, in addition to disperse... The heat dissipation of led street lights is one of the problems that needs to be solved

　　It is not only directly related to the luminous efficiency of the actual work of the led, but also because of the high brightness requirements of the led street lamp, large heat, and the outdoor use environment is harsh, if the heat dissipation is not good, it will directly lead to the rapid aging of the led and the reduction of stability.

　　How much do you know about LED street lamp design? But this seemingly good design, in fact, there are obvious irrational situations. Because in the vast majority of the use of road lamps in our country, the amount of flying dust in the air is large, and sometimes it will reach a large amount (such as a sandstorm), such lamps will be used under general conditions after a period of time (about three months to six months), the gap in the internal radiator will be filled with dust, so that the radiator effect is greatly reduced, and finally, the led will be used because of high working temperature Life is significantly shortened. The drawback of this scheme is that it cannot be used well for a long time.