Rearview mirrors are essential for safe driving, allowing drivers to observe the area behind the vehicle. Typically mounted on the windshield above the dashboard, they reflect light from the rear to provide a clear view. By simply adjusting the angle, drivers can see the road conditions behind the car.
Modern vehicles now use electric adjustment systems, where micro motors are embedded to enable directional movement. Lihua Motor introduces the FC-140SA micro motor, specially designed for automotive rearview mirrors. It is compact and efficient, enabling directional adjustment, display integration, and more. With electric motor-driven mirrors, drivers can adjust mirror angles without manual operation, enhancing both convenience and driving safety.
These systems usually use DC motors to control the angle. Here’s a breakdown of the typical operating principle:
Power Supply: Electricity is provided by the vehicle’s battery system and regulated through a power management module to deliver the right voltage to the motor.
Drive Circuit: The current flows into an H-bridge circuit, enabling current to flow in both directions. This allows for forward and reverse rotation, as well as braking.
Control System: User inputs or vehicle commands are processed and translated into control signals that direct motor operation.
Position Feedback: Some systems use optical encoders or Hall sensors for closed-loop feedback control, ensuring the mirror adjusts accurately.
Motor Activation: Control signals trigger the drive circuit, causing the motor to rotate and move the mirror accordingly.
Angle Adjustment: The motor’s rotation direction and speed determine horizontal or vertical mirror adjustments.
Motor Protection: Built-in protection such as overcurrent and overheating safeguards ensure system stability and motor longevity.
This is a feedback-based control system, where mirror adjustments are made precisely and efficiently using intuitive controls such as buttons—improving both driver experience and safety.
Today’s rearview mirrors often feature auto-dimming functions to reduce headlight glare at night. The FC-140SA motor from Lihua Motor also supports integrated display connectivity for backup cameras or sensor images. Its compact design fits neatly inside the mirror housing, and the control circuit easily interfaces with the motor—enabling seamless integration.
This motor supports high rotational speeds and high torque for fast and stable adjustments. It offers multiple control modes, such as manual switches or remote control, with intuitive operation that requires just the press of a button—ideal for quick adjustments during driving.
Key Performance Features:
Low Noise: Operates at ≤55dB(A), minimizing distraction and enhancing comfort.
Wide Temperature Range: Operates reliably from -10℃ to ±60℃, suitable for various environments.
Strong Torque: Delivers 3.3kg·cm torque for quick, stable mirror movements.
Energy Efficient: Low power consumption extends system lifespan, especially important for battery-operated setups.
Lihua Motor also supports performance testing and design improvements based on customer requirements, ensuring rearview mirrors meet application-specific standards in terms of accuracy, speed, and reliability.
Lihua Motor’s FC-140SA is not only ideal for rearview mirrors in passenger cars and trucks but also applies to personal care devices, adult products, automotive accessories, and smart locks. We offer comprehensive customization services tailored to a variety of vehicle models and application scenarios.
Quality assurance is a top priority at Lihua Motor. Every product undergoes rigorous inspection before shipment. We implement precision testing at every production stage to ensure optimal product performance. Final tests include cogging torque, noise level, temperature adaptability, and lifespan verification. Comprehensive motor testers are used to evaluate current, speed, and noise, guaranteeing consistent quality.
All of Lihua Motor’s products for commercial equipment comply with CE, REACH, and ROHS standards. We also offer EMC and EMI testing upon request. Our core products—DC motors, DC gear motors, and brushless motors—serve a wide range of commercial applications. With over 20 years of experience in motor customization and a massive sample database, we work closely with clients to understand specific needs and develop refined, high-performance solutions for commercial use.
