Automotive Sensor and Camera Lens Cleaning

Advanced Driver Assistance Systems (ADAS) and autonomous vehicle platforms depend on unobstructed sensor and camera vision to function correctly — a dirty lens or contaminated lidar aperture is not a nuisance, it is a safety-critical failure. Air-blast lens cleaning systems use precisely directed airflow to remove rain, snow, mud, and condensation from camera lenses, radar radomes, and lidar windows in real time during vehicle operation. The blower powering these systems must operate reliably across the extreme temperature range of automotive environments, maintain consistent air blast pressure over the vehicle’s service life, and withstand the mechanical shock and vibration of a moving vehicle without failure.

• Automotive temperature range: −40°C to +85°C — automotive qualification requires reliable operation from cold-start at −40°C (when blower lubricant is at maximum viscosity) to sustained operation at +85°C under-hood ambient. BLDC motors with low-viscosity synthetic lubricants and ball bearings rated for this range are mandatory.
• AEC-Q100/Q200 component philosophy and 12V or 24V vehicle bus compatibility — automotive electronic systems run on 12V (passenger vehicles) or 24V (commercial trucks and buses). Blowers must be designed for these voltages with 16V or 32V maximum rated to accommodate load-dump transients on the vehicle bus.
• Vibration and shock resistance per ISO 16750-3 — automotive components experience road-induced vibration from 5–2,000 Hz continuously and shock events up to 50 g during kerb strikes or rough terrain. Ball bearings with correct radial clearance for vibration environments and motor windings secured with conformal coat or equivalent fixation are required.
• Directed high-velocity airflow for effective debris removal — effective lens cleaning requires air exit velocities above 15–25 m/s at the lens surface from a nozzle 20–50 mm away. This requires a centrifugal blower delivering 0.5–5 kPa static pressure into the nozzle restriction, not a low-pressure axial fan.
• Compact form factor for vehicle packaging constraints — ADAS sensor cleaning modules must fit within the sensor mounting structure or bumper cavity with minimal additional volume. Compact radial blower formats are preferred over large-diameter axial fans.
• IP67 or IP69K for automotive wash-down environments — camera cleaning modules are mounted externally and exposed to high-pressure wash jets during vehicle cleaning. IP67 sealing (immersion to 1 m) is the minimum; IP69K (high-pressure, high-temperature steam cleaning) is required for truck and commercial vehicle applications.