Application of Brushless Motors in Breathing Pumps

In the breathing pump of medical ventilators, the coreless brushless motor, as the core power component, mainly features:

1. Power Drive and Airflow Control

Power source: The coreless brushless motor drives the fan of the breathing pump through electronic commutation, generating stable airflow to provide continuous ventilation support for patients.

Dynamic response: Its iron‑less core structure significantly reduces rotor mass and inertia, enabling millisecond‑level acceleration and deceleration to precisely match the ventilator’s demand for rapid airflow response.

2. Improved Precision and Efficiency

Precise control: By adjusting the motor speed, parameters such as output airflow pressure and tidal volume are accurately controlled to meet the personalized respiratory support needs of different patients.

High efficiency and energy saving: The coreless design eliminates iron loss, with energy conversion efficiency as high as 70-90%, reducing equipment power consumption and heat generation, ensuring stability during long-term operation.

3. Safety and Reliability Assurance

Low interference operation: The brushless design avoids sparks and electromagnetic interference caused by carbon brush wear in traditional motors, reducing signal interference to the ventilator's electronic control system.

Long service life and low maintenance: The structure features no mechanical friction loss, which significantly extends the service life of the motor and reduces the risk of downtime for ventilators caused by power component failures.

4. Patient Experience Optimization

Low noise and low vibration: Coreless brushless motors run smoothly, effectively reducing high-frequency noise and vibration of traditional motors and improving patient treatment comfort.