Traditional in-vehicle wireless charging modules often place the air vent on the surface where the phone contacts, directly blowing air onto the back of the phone to cool it. However, this structure makes it easy for foreign objects such as cookie crumbs and milk tea to enter the fan, causing blockage or abnormal noise. More importantly, this single airflow neglects the heat dissipation needs of components such as the PCB board-like only cooling the engine radiator but ignoring the transmission; the overall system may still experience power limitations due to localized high temperatures.
Patent technology shows that an innovative three-dimensional airflow design can simultaneously cool the internal components of both the phone and the charger. For example, Digital Cat's solution uses zoned airflow to cover three heat sources: the coil, the PCB board, and the phone. Real-world testing shows that this reduces continuous charging power fluctuations by 40%. This design is similar to a "through draft" in architecture, avoiding the pollution risks of direct airflow while achieving global thermal balance.
