Silent Piezoelectric Micro Air Pump - YDB01A-1

I、Product Overview

The Silent Piezoelectric Micro Air Pump (Model: YDB01A-1.5L) is a new-generation micro air pump based on piezoelectric ceramic drive technology. It completely abandons the motor, carbon brushes, and mechanical sliding friction pair structure of traditional micro air pumps, utilizing the inverse piezoelectric effect to achieve direct conversion from electrical energy to mechanical energy.

The product combinesUltra-silent (<10 dB), ultra-lightweight (9 g), high-precision control (<0.1%)Three core advantages, designed for medical, portable wearable, precision detection and other scenarios with extremely high requirements for noise and size.

 

II. Working principle

1. Inverse piezoelectric effectThe drive voltage causes the piezoelectric ceramic vibrator to produce high-frequency micro-deformation, directly converting electrical energy into mechanical energy.

2. Ultrasonic frequency vibration:The working frequency is in the ultrasonic range, far beyond the upper limit of human hearing, naturally quiet.

3. Diaphragm pumping:The diaphragm periodically deforms, and the pump chamber volume changes to complete suction and exhaust.

4. Positive and negative pressure dual outputThe same pump body outputs positive pressure (inflation) or negative pressure (suction/adsorption) according to the connection method.

No motor, no carbon brushes, no mechanical sliding friction — the structural root of silence and long lifespan.

 

III. Core Parameters

Item	Specifications
Product Model	YDB01A-1.5L
Flow Rate	> 1.3 L/min (connected to integrated filter, 500-mesh filter screen, ME drive)
Static pressure	> 15 kPa (ME drive)
Vacuum degree	< -13 kPa (ME drive)
Noise level	< 10 dB (GB/T 4963-2007, 30cm equivalent test distance)
Control accuracy	< 0.1% (with sensor and circuit closed-loop control)
Drive voltage	3.2 – 4.2 VDC (recommended 3.7V lithium battery direct drive)
Weight	9.0 ± 0.2 g
Connection terminal	2P 1.25 terminal
Working mode	Power-on start; power > 1W recommended intermittent operation (run ≤ 30s + stop 10s)

 

IV. Performance Display

• Zero back pressure flow rateUp to approximately2 L/min(Parallel operation), smoothly decreases as back pressure increases.
• Static pressure > 15 kPa, vacuum degree < -13 kPa, corresponding to the cutoff points at both ends of the curve.
• Positive and negative pressure bidirectional symmetryInflation and suction are completed by the same pump body, no need to change the air circuit.
• Need higher flow rate?Multiple pumps in parallel can expand capacity, flexibly meeting different working condition requirements.

 

V. Product Form

• Overall weight9.0 ± 0.2 g, compact and thin form factor (dimensions see specification drawing).
• Dual nozzle designPositive/negative pressure available on demand, simplifying air circuit layout.
• Standard terminal2P 1.25 terminal, plug and play.
• Easy installationMounting ears on both sides + screw fixation, adding shock-absorbing pads for quieter operation.
• Power supply friendly3.7V lithium battery can directly drive it, very suitable for portable devices.