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Technology Design And Application Of LED Automotive Lamps And Lanterns

- Mar 01, 2018 -

The selection of photoelectric elements and the design of modules, according to the LED automotive lamps should have a high stability, long life and suitable for a variety of harsh environment requirements, the selection of high-performance LED light source. Using constant current power supply and high heat dissipation design, the lamp temperature is controlled under 50 ℃ to ensure the light efficiency.

Light body, light mirror using high-quality pc materials to adapt to a variety of harsh environment without deformation.

(1) PCB assembly welding. PCB using High-temperature epoxy glass fiberboard, the Resistance, light-emitting diode (LED), rectifier diodes, conductors, regulators and other components in accordance with the design circuit diagram welding on the circuit board. The use of advanced lead-free wave soldering machine, epoxy resin potting.

(2) light mirror injection. The inner surface of light mirror is designed with ditty fringe, which increases its luminous performance index and makes the appearance beautiful. The lamp mirror of the LED lamp should be more stringent than that of the ordinary lamp mirror, otherwise it will result in the performance of the light distribution, such as sticking mode, undervoltage, distortion and different stripe.

(3) Ultrasonic welding. Ultrasonic welding to LED lamps and resistors and other sensitive components have a great impact, especially on LED lamp tube, and has a seasonal. Ultrasonic welding has two major functions, one is the lamp body and lamp assembly welding, the second is sealed. Therefore, it is necessary to strictly control the wave frequency and wave time of the ultrasonic machine, and control the material, shape and size of the die.

(4) The use of special requirements of the production environment, such as anti-static, dust, moisture, etc., to prevent the breakdown of single tube.


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