Light emitting diode vehicle light which is high in spotlight intensity and heat dissipation

Abstract

The invention provides a light emitting diode vehicle light which is high in spotlight intensity and heat dissipation and comprises a fin assembly. The fin assembly is integrally formed with the mounting seat of a heat dissipator into a whole; the fin assembly comprises more than two heat dissipation fins which are circularly distributed; one end of each heat dissipation fin is connected with themounting seat of the heat dissipator; the heat dissipation fins extend outwards along an arc line from the ends that the heat dissipation fins are connected with the mounting seat of the heat dissipator; an air duct is arranged between the adjacent heat dissipation fins; first gap parts are arranged on the inner sides of the heat dissipation fins; the first gap parts extend to the ends that the heat dissipation fins are close to the mounting seat of the heat dissipator; the first gap parts form a first hollow cavity in the middle of the heat dissipation fin assembly; a fan is arranged in the first hollow cavity structure. When the fan blows, an angle A is formed between a direction of first air flows entering the side wall of the first hollow cavity structure from the air ducts and a direction of a second air flow generated when the fan blows, wherein A is greater than 0 DEG and less than 45 DEG. The LED vehicle light has the advantages of good heat dissipation effect, long service life and low noise.

Description

technical field [0001] The invention relates to the field of LED car lights, in particular to a high-focus and high-radiation LED car light. Background technique [0002] As a means of transportation commonly used by the public, cars need to have the ability to run at night or in dark environments, so cars must be equipped with car lights. High-quality car light sources make our roads at night more secure, so the pursuit of better quality The light source has become the common goal of car owners and manufacturers. LEDs have gradually replaced traditional halogen lamps due to their own advantages. LED car lights have good monochromaticity, good shock resistance, high efficiency, low energy consumption, small size and light weight. , the irradiation effect is more concentrated, and the installation is simple, but in the process of lighting LED lights, when electrons and holes recombine, photons cannot be generated. The recombination rate is reduced, that is, the leakage curre...

AI Technical Summary

Problems solved by technology

[0002] As a means of transportation commonly used by the public, cars need to have the ability to run at night or in dark environments, so cars must be equipped with car lights. High-quality car light sources make our roads at night more secure, so the pursuit of better quality The light source has become the common goal of car owners and manufacturers. LEDs have gradually replaced traditional halogen lamps due to their own advantages. LED car lights have good monochromaticity, good shock resistance, high efficiency, low energy consumption, small size and light weight. , the irradiation effect is more concentrated, and the installation is simple, but in the process of lighting LED lights, when electrons and holes recombine, photons cannot be generated. The recombination rate is reduced, that is, the leakage current is converted into heat energy. At the same time, about 70% of the photons generated inside cannot be shot outside the chip, but stay on the chip and be converted into heat. In general, the power delivered to the LED from the outside is not All of them are converted into light energy, but most of them are converted into heat energy, which will increase the internal temperature of LED lights. If the heat is not dissipated in time, the service life of LED lights will be greatly reduced, electronic failures will occur, and electronic components or lamps will be damaged. Maintenance and replacement costs, so heat dissipation is the biggest problem that LED lights need to solve. The installation position of LED lights is limited, and the heat is not easy to evacuate in a small space, so LED heat dissipation is a difficulty that needs to be overcome urgently

[0003] In the utility model patent document with the authorized announcement number CN 206592974 U, a new type of heat dissipation LED automobile lamp is disclosed, which includes a lamp body, a lamp panel, a radiator, a fan and a casing that are sequentially detachable and fixedly connected together. The device is composed of two semi-annular heat sinks. The fan includes fan blades and a fan base. The heat dissipation LED car light adopts a detachable and fixed connection method to fix and connect the various parts of the LED car light, making the LED car light easy to disassemble. At the same time, it is convenient to replace parts (damaged parts), reduce unnecessary waste, and greatly reduce maintenance and replacement costs. outside the car shell, but this method still limits the heat dissipation efficiency of LED car lights

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