LED lighting unit for a vehicle

Abstract

An LED lighting unit 2 for a vehicle such as a motorcycle includes two plate-like members 31 and 41 on which LED apparatus 60 and 70 are mounted as light sources, and reflectors 34 and 44 disposed to cover the LED apparatus 60 and 70 and reflect light from the LED apparatus 60 and 70 forwards. The two plate-like members 31 and 41 are disposed facing each other with a space 50 provided therebetween, with the LED apparatus 60 and 70 mounted on the outer sides. Cooling fins 35 and 45 are provided on the plate-like members 31 and 41 and extend into the space 50. The cooling fins 35 and 45 can be disposed such that their longitudinal direction is perpendicular to a longitudinal direction of the plate-like members 31 and 41. The plate-like members 31 and 41 and the reflectors 34 and 44 can be formed separately from each other. The lighting unit can efficiently cool heat generated from an LED apparatus, and an LED for a low beam and another LED for a high beam can be provided separately and independently of each other.

Description

technical field [0001] The present invention relates to an LED illuminator (lamp) for a vehicle, and more particularly to an LED illuminator for a vehicle capable of efficiently cooling a light-emitting diode as a light source and its substrate. Background technique [0002] Conventionally, there is known a lighting device for a motorcycle using a light emitting diode (LED) as a light source. LEDs are smaller than incandescent light bulbs, and can promote the miniaturization of illuminators. On the other hand, LEDs are electronic components mounted on the surface of electronic substrates, and the importance of heat dissipation measures increases with the increase in light intensity. Therefore, regarding To configure the structure, LEDs need to be studied differently than incandescent bulbs. [0003] Patent Document 1 discloses an LED illuminator that has two types of reflectors for low beam and high beam, and switches the low beam by changing the irradiation direction of th...

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Problems solved by technology

[0007] According to the LED illuminator described in the above-mentioned Patent Document 2, the low beam and the high beam can be installed with a simple structure without using an actuator as in the Patent Document 1, but neither the low beam nor the high beam is provided with a patent. A cooling mechanism like the radiator described in Document 1, so there is still room for research on heat dissipation countermeasures

[0008] On the other hand, in the shape and arrangement of the heat sink described in Patent Document 1, there are problems in that it is difficult to ensure a large capacity, and since the heat sink can be visually recognized from the outside of the luminaire, the appearance of the luminaire is reduced. sexual deterioration

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