Precision voice coil motors for respirators with light weight motion coils and short response times. High precision wear-resistant optical shaft and miniature ball bearing system, flexible cable output. Low hysteresis force, low friction, good reliability.
The application of voice coil motors in precision medical equipment mainly utilizes their simple structure, smooth operation and high positioning accuracy. These motors are able to actively drive cylinder valves to realize high-frequency round-trip movements, thereby controlling the basic functions of the ventilator. In the medical field, voice coil motors are widely used in equipment such as ventilators, vibration isolation platforms, and micromotion platforms to ensure precise control and high performance of medical equipment.
Voice coil motors have an extremely fast response time, delivering air faster and more accurately to easily control exhalation patterns, improving the user experience and allowing patients to breathe easily and freely under any pressure.
Its high-performance motor drives not the speaker's horn, but the load in different applications. Force level adjustment and direction flip can be realized by changing the current level and direction, ensuring high precision, no wear and tear, and extended service life.
The high-performance motor exhibits great smoothness in operation, which is especially important for ventilator use, as it provides stable airflow control, thus ensuring stable and safe breathing for the patient.
1.4 The mass of the actuator coil is less than 15g, the response time is less than 20ms, the friction force is less than 50mn, and the hysteresis force is less than 40mn.
Winding constant | TOL | SYM | VALUE | UNIT |
D.C resistance | ±10% | R | 4.6 | Ω |
Yoltage @ Fo | NORMAL | Vp | 11.5 | V |
Current © Fp | NORMAL | Ip | 2.5 | A |
Force constant | ±10% | Kf | 5.6 | N/A |
Back EME_Constant | NORMAL | Kb | 5.6 | V/M/Sec |
Inductance | ±30% | L | 0.74 | mH |
Actuator parameters | SYM | VALUE | UNIT | |
Peak force | Fp | 15 | N | |
Cantinuous force | FC | 5.8 | N | |
Actuator constant | Ka | 2.6 | NNW | |
Electrical time constant | Te | 0.16 | milli-sec | |
Power @ Fp | Pp | 28 | W | |
Total stroke | s | 7 | mm | |
Friction | Ff | <30 | mN | |
Thecnal resistance | Ѳth | 6.9 | ℃/W | |
Max winding temp | Tmax | 150 | ℃ | |
Weight of coil assembly | WTc | 13 | g | |
Weight of magnet assembly | WTf | 224 | g | |
Actuator weight | WTg | 237 | g |
The main application of a voice coil motor: |
1.Semiconductor industry:Wiring, cutting, drilling, transportation systems, welding,robotics. |
2.Valve operation in the field:Type metering valves, pressure test systems, pneumatic valve chemistry injection system. |
3.Micro Machine industry:Feed systems, micro drilling, precision stamping. |
4.Vibration System:Shaking table, vibration platform. |
5.Medical field:Micro-injection system, respiratory equipment, testing equipment. |
6.Aviation Technology:Flight control system, pilot feedback system. |
7.Commercial use field:Computer cooling pump miniature camera auto focus system. |
8.Automation industry:Laser equipment,dispenser, test equipment, textile machinery. |