Advances in Heat Management for Automotive Lighting Systems

A vehicle lamp body that is easily recyclable and allows for efficient separation of the lens and housing components at the end of life while maintaining high rigidity. The lamp body has a housing attached to the vehicle body and a lens joined to the housing. The lens contains a specific heat-generating region that facilitates separation from the housing.

Heat dissipating structure for automotive LED headlights to improve brightness, power, and lifetime while keeping the lights cool. The structure integrates the radiator, heat pipes, and LED board into a single unit to efficiently transfer heat from the LEDs to the fins. This eliminates the need for separate parts that can compromise heat dissipation. The integrated structure allows quick heat transfer and dissipation, reducing LED temperatures to improve brightness and longevity. The design also enables higher-power LEDs without overheating. By welding the parts together, heat is directly conducted from the LEDs to the fins. This ensures better heat transfer compared to separate components.

A vehicle headlight system using LEDs that achieves low and high beam patterns from a single module. The system has two LED elements mounted on a common heatsink. In low beam mode, one LED is operated at high power while the other is off. In high beam mode, the second LED is operated at high power while the first is dimmed. The disjunctive operation reduces the thermal load on the heatsink. The LEDs can be dimmed using PWM or using fewer LEDs from a group.

Vehicle lighting assembly with a heatsink and active cooling for thermal management of LED headlamps. The assembly has a heatsink that contacts the backside of the PCB to dissipate heat from the LEDs. The heatsink has fins and channels to facilitate airflow. A blower is positioned to draw air through the channels and exhaust it onto the PCB. This actively cools the LEDs to prevent overheating. The blower can be mounted in the heatsink or externally.

A forward LED light with cooling capabilities melts ice and keeps the lens clear. A heat transfer device and temperature sensing distribute heat from inside the light to a heatsink cover on the outside. This allows the light to use its own heat to deice the lens and prevent obstructions in cold and snowy conditions. The device detects low temperatures inside the light and activates a heating element on the front heatsink cover to generate more heat for deicing.

Vehicle lamp design that prevents inner lens deformation and damage from concentrated light. The lamp has a recessed area in the light guide near the bottom surface. This recessed area reflects light back instead of transmitting it further. A heat dissipation unit is mounted on this recessed area to absorb and dissipate the concentrated light. This prevents excessive temperature buildup and deformation in the inner lens. The recessed area with the heat dissipation unit is shaped to match the cutoff line of the low beam pattern.

LED lamp for vehicle lights that mimics the appearance of conventional lamps while improving reliability and service life. The LED lamp has a heat sink body with an insertable conductive structure to connect the LED modules. The heat sink body has a central bore, side duct, and opening. The insertable structure fits in the duct with contacts accessible through the opening. This allows easy module connection and heat dissipation. The integrated heat sink design reduces temperature and improves longevity compared to a separate bulb/heat sink.

Passive cooling system for LED vehicle lamps that removes heat from the LED without active cooling. It uses a heat pipe embedded in a heat sink with the LED mounted directly on the pipe. Heat transfers from the LED to the pipe and then to the sink, passively cooling the LED without a fan. The heat pipe allows effective heat removal compared to just using the sink alone. The LED is mounted close to the center of the pipe to maximize heat transfer. The heat sink has a slot to receive the pipe. The LED is electrically connected to a PCB mounted on the sink.

A compact and lightweight automotive headlight design that reduces size and weight compared to conventional headlights. The headlight uses a heat sink integrated into the housing and molded with the housing to provide thermal management. This eliminates the need for a separate heat sink component. The heat sink is made of sheet metal, such as aluminum. The integrated heat sink reduces overall size and weight compared to a separate heat sink. The headlight also has an optical element, like a lens or reflector, molded into the housing instead of a separate component. This further reduces size and weight. The control electronics are accommodated within the housing. The integrated heat sink, molded optical element, and internal electronics all contribute to a more compact and lightweight headlight design.

LED automotive headlamp module with integrated cooling to improve thermal management of high-power LEDs. The lamp module has a heat sink base with a fan inside. The LED board is mounted inside the heat sink and has an airflow passage. The module attaches to the headlamp reflector socket with flanges that have slots. The heat sink direct airflow past the LEDs, through the slotted flanges into the reflector interior, and rearward to prevent stagnation. This leverages the reflector airflow to cool the LEDs without adding external ducts or fans.