US 11,994,267 B2
Vehicle lamp
Kazuma Mochizuki, Shizuoka (JP); and Teppei Muramatsu, Shizuoka (JP)
Assigned to KOITO MANUFACTURING CO., LTD., Tokyo (JP)
Appl. No. 18/012,196
Filed by KOITO MANUFACTURING CO., LTD., Tokyo (JP)
PCT Filed Jun. 23, 2021, PCT No. PCT/JP2021/023845
§ 371(c)(1), (2) Date Dec. 21, 2022,
PCT Pub. No. WO2022/009683, PCT Pub. Date Jan. 13, 2022.
Claims priority of application No. 2020-116346 (JP), filed on Jul. 6, 2020.
Prior Publication US 2023/0272898 A1, Aug. 31, 2023
Int. Cl. F21S 45/435 (2018.01); F21S 41/147 (2018.01); F21S 41/20 (2018.01); F21S 41/27 (2018.01); F21S 41/32 (2018.01); F21S 45/47 (2018.01)
CPC F21S 45/435 (2018.01) [F21S 41/147 (2018.01); F21S 41/27 (2018.01); F21S 41/285 (2018.01); F21S 41/32 (2018.01); F21S 45/47 (2018.01)] 7 Claims
OG exemplary drawing
 
1. A vehicle lamp comprising:
a circuit board on which a light source is mounted;
a heat sink having a front surface or a rear surface to which the circuit board is attached and configured to release heat generated when the light source is driven; and
a cooling fan disposed above or below the circuit board and the heat sink,
wherein a first part of cooling air generated by the cooling fan flows along the heat sink and a second part of the cooling air generated by the cooling fan flows along the light source,
wherein a reflector is provided to reflect light emitted from the light source,
the reflector includes an intake opening that is positioned below or above the cooling fan and takes in the cooling air generated by the cooling fan, and
the cooling air taken in from the intake opening flows toward the light source.