The present invention relates to a cooling system for a lighting module of a vehicle, the system includes at least one heat sink and at least one member for axially circulating a fluid, the heat sink including a first heat-dissipating surface and a second heat-dissipating surface extending in intersecting planes, the heat sink including at least one thermal dissipation member and at least one wall which, together with the axial circulation member and with the first dissipating surface, at least partially delimit a circulation chamber in which the fluid circulates and which opens, via a fluid outlet, onto the thermal dissipation member.

The present invention relates to a cooling system for a lighting module of a vehicle, the system includes at least one heat sink and at least one member for axially circulating a fluid, the heat sink including a first heat-dissipating surface and a second heat-dissipating surface extending in intersecting planes, the heat sink including at least one thermal dissipation member and at least one wall which, together with the axial circulation member and with the first dissipating surface, at least partially delimit a circulation chamber in which the fluid circulates and which opens, via a fluid outlet, onto the thermal dissipation member.

A heat dissipation method of a vehicle light-emitting diode (LED) lamp is provided. When a vehicle lamp is turned on, an instruction, a temperature, luminance, a heat dissipation state, and an external environmental temperature of the vehicle lamp are acquired, and a heat dissipation strategy is adjusted. If the temperature of the vehicle lamp is greater than a first temperature threshold, a fan is started for heat dissipation. If the temperature of the vehicle lamp is continuously greater than a second temperature threshold, even though the fan operates at a full speed, a liquid cooling system is activated for cooling. When the external temperature reaches a preset threshold, the fan and the liquid cooling system work simultaneously, so as to control the temperature within a safety range. A cooling fan state and a liquid cooling state are respectively adjusted through a rotational speed and a flow velocity.

A heat dissipation method of a vehicle light-emitting diode (LED) lamp is provided. When a vehicle lamp is turned on, an instruction, a temperature, luminance, a heat dissipation state, and an external environmental temperature of the vehicle lamp are acquired, and a heat dissipation strategy is adjusted. If the temperature of the vehicle lamp is greater than a first temperature threshold, a fan is started for heat dissipation. If the temperature of the vehicle lamp is continuously greater than a second temperature threshold, even though the fan operates at a full speed, a liquid cooling system is activated for cooling. When the external temperature reaches a preset threshold, the fan and the liquid cooling system work simultaneously, so as to control the temperature within a safety range. A cooling fan state and a liquid cooling state are respectively adjusted through a rotational speed and a flow velocity.