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US 11,994,267 B2Granted
Vehicle lamp
AssigneeKoito Manufacturing Co., Ltd.
InventorsKazuma Mochizuki, Teppei Muramatsu
Life of this patent
Estimating the term…
Abstract
A vehicle lamp includes: 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. Cooling air generated by the cooling fan flows along the heat sink and the light source.
Claims7
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.
5 more elements
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 cooling air generated by the cooling fan flows along the heat sink and 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,
- wherein the reflector has a guiding inclined surface that guides the cooling air taken in from the intake opening, and
- the guiding inclined surface is inclined to be close to the light source as a distance from the cooling fan in a vertical direction increases.
7 more elements
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 cooling air generated by the cooling fan flows along the heat sink and the light source,
- wherein a surface of the circuit board on which the light source is mounted is formed as a light source mounting surface, and
- the circuit board is disposed in a state where the light source mounting surface is inclined in a direction toward the cooling fan with respect to the vertical direction.
4 more elements
Dependencies are inferred from the claim text.