The EC permanent‑magnet direct‑drive fan box adopts integrated permanent‑magnet synchronous EC fan module. It removes conventional belt and reducer transmission structures to eliminate mechanical losses at source. The impeller undergoes precise dynamic‑balance calibration for low vibration and low‑noise operation. It supports 0‑100% stepless intelligent speed regulation, and dynamically adjusts air volume and air pressure according to temperature‑humidity and wind‑pressure load, achieving 30%‑55% comprehensive energy saving compared with traditional fan boxes.
The cabinet is made of galvanized steel or 304 stainless steel with high protection grade for various working conditions. The built‑in intelligent drive unit provides multi‑protections against over‑temperature, locked‑rotor and over‑current. It accepts 0‑10V and PWM signal input and connects to BA building automation and environmental monitoring systems to realize remote monitoring and fault self‑diagnosis.
Free of wearing parts such as belts, it runs stably for 24‑hour continuous operation with easy maintenance. Its modular structure enables in‑situ replacement retrofit. Widely applied in clean workshops, industrial factories, building HVAC and data‑center ventilation for new‑equipment matching and energy‑saving retrofit projects of legacy fan boxes.
