1. Air pump core structure optimization
Diaphragm type micro air pump
Material selection: The use of high elasticity, high wear-resistant materials (such as fluorine rubber, silicone) to make diaphragm, improve air tightness and life.
Structural improvement:
Optimize diaphragm thickness and curvature to reduce fatigue damage during operation.
Multi-layer composite diaphragm is used for flexibility and pressure resistance.
Shock absorbing design: Add shock absorbing elements around the diaphragm to reduce the impact of vibration on the air pump.
Piston type micro air pump
Low friction piston design:
Use low-friction coatings (such as PTFE, carbon-based coatings) or ceramic materials to reduce friction heat and wear.
Improved piston seal shape to ensure efficient sealing.
Balanced piston movement: double piston symmetrical structure is used to reduce the instability caused by eccentric movement.
Brushless motor drive optimization
Efficient motor design: brushless DC motor is selected to reduce energy consumption and operating noise.
Electronic control system:
Integrated closed-loop feedback control for precise motor speed adjustment.
Improve start-stop response speed to ensure a quick response to the patient's respiratory needs.
2. Air flow and pressure optimization
Gas path design
Fluid dynamics optimization:
Analyze gas flow with CFD (Computational Fluid dynamics) simulation to reduce vortex and pressure losses.
Optimize pipe diameter, length and turning Angle to ensure smooth airflow.
Inner wall treatment: The inner wall of the gas path is polished or coated to reduce friction resistance.
Pressure control
Dynamic pressure regulation:
Design an automatic pressure regulation module to monitor patient needs in real time and adjust airflow output.
Add a pressure buffer to reduce short-term pressure fluctuations.
Pressure sensor optimization: Select high-precision pressure sensors and arrange them at key nodes to ensure real-time monitoring.
3. Noise and vibration reduction design
Vibration source isolation:
Install elastic vibration isolation materials (such as silicone pads and rubber rings) between the air pump base and housing.
Optimize the mechanical balance and reduce the vibration transmission of motor or piston movement.
Noise reduction structure design:
Design silencer at air pump outlet to reduce airflow noise.
Use soundproof material to wrap the air pump housing to reduce the overall noise diffusion.
4. Thermal management optimization
Heat dissipation design:
Add heat sink or heat duct to improve heat transfer efficiency.
Optimize the airflow channel inside the equipment to enhance the convection heat dissipation effect.
High temperature resistant materials: Use high temperature resistant materials on key components to ensure thermal stability during long periods of operation.
5. Control system optimization
Intelligent feedback control
Sensor fusion: The flow, pressure and temperature sensors are linked to the control system to adjust the operating parameters in real time.
Adaptive algorithm:
Design a control algorithm based on PID or AI optimization to adjust the output of the air pump in real time.
The parameters are optimized by learning the patient's respiratory characteristics (e.g., depth of inspiration, frequency).
Redundant design
Redundant circuits or backup modules are added to the control system to ensure that the air pump can continue to operate in case of sudden failure.
6. Modular design
Easy to maintain and upgrade:
The air pump, motor, sensor and other separate design, easy replacement and maintenance.
Provides standardized interfaces to support flexible combination of different breathing models.
Compatibility design: Optimize the ability to interconnect with other systems (such as oxygen supply systems) to reduce compatibility issues.
7. Environmental adaptive design
anti-interference
Electromagnetic shielding: A shielding layer is added around the control circuit to avoid electromagnetic interference from external devices.
Vibration resistance: Improved vibration resistance for transportation or mobile use scenarios (such as emergency vehicles).
Weather resistance design
Ensure stable operation of the air pump in extreme temperatures (as low as -20°C, as high as 50°C) or humidity.
Added water and dust resistant structure design (IP class requirements).
8. Simulation and test optimization
Structure simulation:
Finite element analysis (FEA) is used to optimize the stress distribution of air pump structure to avoid fatigue damage caused by stress concentration.
Test verification:
Long time fatigue testing, performance testing and extreme conditions testing (such as high load, fast start and stop).
The response speed and stability of the air pump are verified by a dynamic test simulating the patient's breathing pattern.
9. Manufacturing process optimization
Precision assembly: Automatic assembly technology is used to improve assembly accuracy and reduce errors.
Surface treatment: anti-wear coating and smooth treatment of key parts to reduce friction loss.