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Household Medical Nebulizer PCBA Solution

Published Time: 2022-12-12 16:33:44
The oscillating signal based on the circuit board is energy amplified by a high-power triode.

1. Product introduction

 

1. Product overview

The atomizer is a circuit board-based oscillating signal that is amplified by a high-power triode and transmitted to the piezoelectric ceramic sheet. When the piezoelectric ceramic sheet is excited by the electrical signal, it generates high-frequency resonance and makes it adsorbed on the microporous membrane. The liquid knot on the surface generates ultrasonic vibration, which breaks up the structure of the liquid and produces a natural and elegant mist. There is no need to heat or add any chemical reagents. Compared with heating atomization, energy saving is 90%.

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2. Product Features

Machine noise during normal operation: <50db

The atomization rate of the atomizer is 0.25mL/min, and the proportion of mist particles smaller than Φ5μm is >55%

Can be used with 2 dry batteries or external USB power supply DC5V

Standby current<10uAuA

8-bit high-speed and low-power MCU is used to facilitate the development of expanded functions

 

2. Key components

Main control chip: choose according to the demand

 

3. Detailed explanation of measurement principle

1. Click the button to turn on the machine to check the atomization rate, and the blue light is always on

2.2.2V±0.2 low power protection, the orange light flashes 5 times, the atomizer stops working

3. Shut down to check the standby current

4. When there is no water, the atomizer stops working

5. Use 2 AA dry batteries, and after the atomizer can work continuously for 1 hour after starting up (it is allowed to add an appropriate amount of drinking water or tap water to the liquid tank of the atomizer during work, pure water cannot be used), the atomizer should work normally Work

 

4. Operation method

1. System operation

In shutdown state:

(1) Press the start key to start atomization

In any boot state:

(1) Press the start key to turn off the atomization

2. Features

(1) Not easy to block, high safety, low noise, extremely fine fog particles, low power consumption

(2) Easy to use, one key switch.

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Performance parameters:

 

Industry Classification : Medical Electronics

 

Delivery Form : PCBA

 

Product model: A349-SIC367; Ultrasonic oscillation frequency: Nebulizer ultrasonic operating frequency 108kHz, frequency deviation ± 10%; Maximum atomization rate: The atomization rate of the atomizer is 0.25mL/min; Equivalent volume particle Size distribution: The proportion of fog particles smaller than Φ5μm is more than 55%; median particle size: the median particle size of fog particles is 3.7μm, and the error should not exceed ±25%; display mode: L3 two-color LED lights (blue orange); power supply Method: 2 dry batteries/external USB power supply DC5V

 

Application Scenario: Medical Electronics