Silent Power: Car Vacuum Upgrade with Lek 220W

In the depicted vacuum cleaner, incorporating an air pump, both the pump and vacuum components are associated with substantial noise levels. 

To address this issue, a decision was made to upgrade the in-car vacuum cleaner by substituting the existing mechanism with a more advanced brushless motor.

Initiating the process, a meticulous disassembly was performed to assess spatial dimensions, followed by a seamless non-destructive motor replacement. The chosen motor, a Lek 220W model engineered for a 6-cell battery configuration, boasts voltage protection features to ensure optimal performance.

For those uncomfortable modifying the primary board's voltage circuit, an alternative solution involves acquiring a boosting board, demonstrating successful results during the trial phase. Alternatively, an option exists to replace the original driver board with a brushless motor controller; however, this approach necessitates addressing fixation and heat dissipation challenges.

Strategically situating the motor in the original air pump location, the original rubber sleeve was enhanced with supplementary shock-absorbing cotton, secured using hot glue for added stability.

Concerning the casing, the original 0.75 square millimeter power line was deemed sufficient and did not warrant replacement. However, due to the incompatibility of the cigarette lighter plug with the car's 15A fuse, a decision was made to integrate a standardized aviation model plug, considering future modifications to the air pump.

Despite initial intentions to incorporate an air tube through the casing for a motor switch, this feature proved unattainable due to limitations posed by the boosting board. Nevertheless, the project stands concluded, presenting a meticulously enclosed configuration that aligns with optimum specifications.