MULTIFUNCTIONAL ON-BOARD CHARGER

The present disclosure discloses a multifunctional on-board charger, including an accommodation cavity and an accommodation slot. The accommodation cavity accommodates a retractable charging cable assembly. The accommodation slot is used to accommodate a liquid cartridge assembly which includes an outer cartridge and an inner cartridge. The outer cartridge is provided with a first through hole directly communicating with the air. The liquid cartridge assembly can accommodate an aromatherapy liquid. Therefore, the on-board charger achieves more functions under the hardware condition of a small size, thereby solving the technical problems that when an existing on-board charger is plugged in a position of a cigarette lighter to perform charging, other functions for consumers cannot be achieved at the same time, and multiple on-board electrical appliances need to be prepared and repeatedly plugged and unplugged, resulting in an unsatisfactory user experience.