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Structure of high-power LED explosion-proof light

1. The aluminum frame of lamps and lanterns is the primary channel for heat dissipation of LEDs. The appearance is simple and elegant. The cost of using molds for stamping and opening is low, and the processing cost is also low; the IP level of the die-cast aluminum structure can be higher (the company's lamps reach IP65 or above), and the appearance texture is good. , The whole is beautiful, but the cost of the initial investment in the mold is relatively high.


2. LED light source: Generally, 3528 is used for LED lamp beads, and some people use 3014 and 5050. 3014 and 5050 have low cost and slightly worse light efficiency. The key is that their light guide network points are difficult to design. 3528 has high luminous efficiency and good dot versatility.


3. LED light guide plate: The LED light on the side is refracted through the dots so that the light can be exported evenly from the front. The light guide plate is the key point of the quality control of LED explosion-proof lamps. If the network design is not good, the overall light effect seen will be very poor. Generally, the center will be bright and the ends will be dark. There may be a bright light band at the incoming light, or some dark areas may be visible, or there may be inconsistent brightness at different angles. To improve the light effect of the light guide plate, it is mainly based on the design of the network, followed by the quality of the plate, but there is no need to superstitute the first-line plate, the light transmittance between qualified plates is generally almost the same. The general small LED explosion-proof lamp factory directly buys a common light guide plate for use, and does not need to design from scratch. The public version used by many manufacturers is generally of qualified quality.


4. LED diffuser plate: evenly export the light of the light guide plate, and can also play the role of confusing the dots. The diffuser plate generally uses acrylic 2.0 sheet or PC material, and the PS material is almost the same. The cost of acrylic is lower and the light transmittance is slightly higher than that of PC. Acrylic is brittle and has weak anti-aging function. powerful. After the diffuser is installed, the dots cannot be seen, and the light transmittance should be about 90%. The light transmittance of acrylic is 92%, PC is 88%, and PS is about 80%. We can choose the material of the diffuser plate according to the demand. Now most manufacturers choose acrylic material.


5. Reflective paper: The light guide plate does not reflect the residual light before the light effect is improved.


6. Rear cover: The primary function is to seal the LED explosion-proof lamp. Generally, aluminum is used, which can also play a role in heat dissipation.


7. Driving power supply: There are two kinds of LED driving power supply, one is the use of constant current power supply, this type of power is high, the PF value is as high as 0.95, and the cost-effective; the second is the use of constant voltage and constant current power supply, the function is stable, but the power is low, The cost is high. Generally, the use of this power supply is mainly for export. The other party requires certification requirements and must use a power supply with safety regulations. In fact, it is very safe to use a constant current power supply at home, because it is difficult for users to access the power supply, and the lamp body itself uses a safe low-voltage power supply.


8. Equipment pendant: stainless steel fastening screws, equipment brackets and other accessories for equipment fixing. From the point of view of quality control, it is useful to spend additional money on LED light sources and LED light guide plates for improving light efficiency. Improve product level.

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