Lamp used for vehicle

Abstract

The invention relates to a lamp used for a vehicle. The lamp comprises a radiator, a lamp body, and a flexible heat pipe, an AFS rotating shaft, an LED mounting base and an LED chip which are located on the inner side of the lamp body. The radiator is mounted on the rear side wall of the lamp body, a fin portion of the radiator stretches out of the lamp body to make direct contact with external air, and the other portions of the radiator are located on the inner side of the lamp body. The AFS rotating shaft is rotationally connected into the lamp body along a vertical shaft. The LED mounting base is fixed to the top of the AFS rotating shaft. The LED chip is mounted on the LED mounting base. One end of the flexible heat pipe is fixedly connected with the LED mounting base, and the other end of the flexible heat pipe is fixedly connected with the other portions of the radiator. The lamp provided by the invention is high in heat dissipating effect and low in power consumption, the energy-saving advantage of an LED light source is truly achieved, and meanwhile, the demands for flexible adjustment and dynamic illumination can be met.

Description

technical field [0001] The invention relates to a lamp for a vehicle, in particular to a lamp for a vehicle that can realize efficient heat dissipation of an LED light source. Background technique [0002] In recent years, LED has been widely concerned and praised by the market for its green and energy-saving advantages. However, after investigating the energy consumption of LED lamps on some models, it was found that LED lamps for vehicles are not more energy-efficient than lamps with traditional light sources. This is mainly because the photoelectric conversion efficiency of the LED is low, and it will generate heat while emitting light. About 65%-85% of the electric energy is converted into heat energy, which makes the heat dissipation problem of the LED prominent. If the heat dissipation design of the LED is improper, it will cause the LED If the temperature of the chip junction is too high, the life of the device will be shortened. When the heat accumulates to a certai...

AI Technical Summary

Problems solved by technology

The passive heat dissipation system takes the LS600h car lamp as an example. Although the energy consumption of the LEDs used is slightly less, a total of about 45W, due to the passive heat dissipation method, a large amount of aluminum alloy has to be used as a heat sink, which makes the weight of the whole light heavier than that of active heat dissipation. The heavier ones are generally greater than 5Kg

It can be seen that the auxiliary system required for vehicle LED lamps due to heat dissipation significantly increases the energy consumption of the whole lamp, so that the energy originally saved by LEDs is basically offset. Therefore, these seemingly energy-saving products do not really reduce carbon emissions.

Images