LED lighting devices and LED lights for vehicles

Abstract

Provided are a vehicle LED illumination device and an LED vehicle lamp. The vehicle LED illumination device comprises a lamp housing (11), a substrate (12), several LED modules (13) installed on the substrate (12), lamp cups respectively for adjusting light-emitting angles of the LED modules (13), and a heat sink (16) installed on the substrate (12), wherein rear end faces of the LED modules (13) are attached to the substrate (12); the rear end faces of the lamp cups (14) for the LED modules (13) are provided with inner cavities (141), and the LED modules (13) are placed in the inner cavities (141) at the rear end faces of the corresponding lamp cups (14); the substrate (12) is installed in the lamp housing (11); the heat sink (16) is located on the face, away from the LED modules (13), of the substrate (12); and the rear end faces of the lamp cups (14) are respectively provided with several notches (142) in communication with the inner cavities (141), and the notches (142) and the substrate (12) enclose heat dissipation holes (140) in communication with the inner cavities (141). The rear end faces of the lamp cups (14) are provided with the notches (142), and the notches (142) are in communication with the inner cavities (141) of the lamp cups (14), such that when the lamp cups (14) are installed on the substrate (12), the LED modules (13) can be placed in the inner cavities (141) of the lamp cups (14), and the notches (142) and the substrate (12) enclose the heat dissipation holes (140). When the LED modules (13) work, the temperature of the inner cavities (141) is higher and form a temperature difference with the temperature of the outside, and the heat dissipation holes (140) enable the outside to be in communication with the inner cavities (141), such that air convection is formed, thereby rapidly taking away heat in the inner cavities (141) and improving the heat dissipation efficiency.

Description

technical field The invention belongs to the field of automobile lamps, and more specifically relates to a vehicle LED lighting device and an LED vehicle lamp using the vehicle LED lighting device. Background technique Light emitting diodes (LEDs), which are energy-efficient and easy to control, have been widely used in lighting products. In order to improve the quality of automotive lighting and ensure driving safety, LEDs and intelligent control technologies are used in automotive lighting systems. Replacing traditional gas discharge lamps as a new generation of light sources for automotive lighting. The application of LED in taillights, direction lights and brake lights has matured day by day, and LED headlights have also become the development trend of automotive lighting. About 30% of the LED power consumption is converted into light energy, and 70% of the heat energy needs to be dissipated through the heat sink of the lamp. The LED lamps for vehicles work in a relativ...

AI Technical Summary

Problems solved by technology

The object of the present invention is to provide a vehicle LED lighting device to solve the problem of poor heat dissipation of the vehicle LED lighting device in the prior art

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