High-power lamp heat dissipation system, vehicle lighting device and vehicle

Abstract

The invention relates to a vehicle lamp heat dissipation device, and particularly discloses a high-power lamp heat dissipation system, a vehicle lighting device and a vehicle, the high-power lamp heat dissipation system comprises a heat conduction assembly (2) penetrating through a vehicle lamp shell (11) and a sealing part (3) arranged between the heat conduction assembly and the vehicle lamp shell; the heat conduction assembly comprises an internal heat conduction component (21), a heat transfer component (22) and an external heat dissipation component (23); the internal heat conduction component is connected with a light-emitting assembly (12) in a vehicle lamp, and the heat transfer component is connected between the internal heat conduction component and the external heat dissipation component so that heat of the light-emitting assembly can be conducted from the internal heat conduction component to the external heat dissipation component and dissipated to the outside of the vehicle lamp. The sealing part is a flexible sealing part; and an integral structure formed by the internal heat conduction component, the heat transfer component and the light-emitting assembly can move relative to the vehicle lamp shell. According to the high-power lamp heat dissipation system, dimming can be achieved while the sealing performance of the vehicle lamp is guaranteed.

Description

technical field [0001] The invention relates to a heat dissipation device for a lamp, in particular to a heat dissipation system for a high-power lamp. In addition, the present invention also relates to a vehicle lighting device and a vehicle. Background technique [0002] With the improvement of people's demand for the brightness of car lights, the power of car lights is also getting higher and higher, even reaching a power of more than 50 watts. [0003] Most of the lamp housings and lamps are external plastic parts. Without a heat dissipation system, the heat in the lamps in the accumulation area can only be passively dissipated, and the heat dissipation efficiency is extremely low, which will easily lead to a sharp rise in the ambient temperature inside the lamps, and even The temperature difference between the inside and outside of the lamp is more than 70°C, which makes the internal parts of the lamp easily reach the Vicat limit temperature, which will reduce the ligh...

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Problems solved by technology

[0003] Most of the lamp housings and lamps are external plastic parts. Without a heat dissipation system, the heat in the lamps in the accumulation area can only be passively dissipated, and the heat dissipation efficiency is extremely low, which will easily lead to a sharp rise in the ambient temperature inside the lamps, and even There is a temperature difference of more than 70°C between the inside and outside of the lamp, which makes the internal parts of the lamp easily reach the Vicat limit temperature, which will reduce the amount of light passing through and even burn out the luminous body. Therefore, it is necessary to set up a heat dissipation system for the lamp

[0004] At present, in order to obtain better lighting functions of car lights, it is generally adopted the design that the position of the luminous body can be adjusted, and because the space inside the car light is small, it is not convenient to install an adjustment device inside the car light to realize the position adjustment of the luminous body. Therefore, it is generally adopted to set an adjustment device outside the car lamp to adjust the luminous body and the cooling system as a whole. For the purpose of waterproof and dustproof, the lamp is generally set as a sealed structure, so it is necessary to realize the movable cooling system. In the case of adjustment, the airtightness of the inner space of the car lamp is guaranteed; however, the heat dissipation system in the prior art is generally fixedly connected with the car lamp housing, so it is impossible to adjust the position of the illuminant, and it is difficult to satisfy consumers' requirements for the lighting function of the car lamp. requirements

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