萝莉影视

Microblower (Air Pump) Features of microblowers

Allow pumps to be used in quiet environments

Fig of Allow pumps to be used in quiet environments
Image of Allow pumps to be used in quiet environments

Microblowers are devices that use the ultrasonic vibrations of a piezoelectric element for the drive source.
The piezoelectric element used in microblowers vibrates in the ultrasonic band (20 kHz or more), so it is inaudible to humans and thus extremely quiet.*1

The operating noise will not be heard by those around the device even when it is used in an environment where operating noise is a concern (for example, quiet spaces like libraries and rooms where babies sleep).

  • *1The operating noise is outside the hearing range of humans. Nevertheless, it may be audible on rare occasions.
    Some wind noise is produced when discharging air with the high flow rate type (MZB1001T02).

Demonstration video

Low-noise: Operating noise

This is a demonstration video in which the operating noise of a microblower is picked up by a microphone.
You can experience for yourself the quietness of the operating noise of the microblower.

For wearable device applications that do not restrict the daily lives of their users

Fig of For wearable device applications that do not restrict the daily lives of their users
Image of For wearable device applications that do not restrict the daily lives of their users

The size of the microblower is about 20 mm. The thickness is 2.3 mm in our thinnest product.
A piezoelectric element is used for the drive source, so an extremely lightweight and compact design is realized.
Microblowers are small and thin. Therefore, they can also be used in small devices with a restricted component placement space.
Moreover, microblowers are lightweight. Therefore, they are also suitable for wearable devices for which lightness is greatly valued.
It is possible to place microblowers in a free layout by taking advantage of their smart shape.

Demonstration video

Pressurizing (expansion): Balloon

This is a demonstration video using a microblower (MZB3004T04).
We introduce an arrangement layout example with an animation at the end of the video.

Comfortable blowers (pumps) even when worn

Fig of Comfortable blowers (pumps) even when worn
Image of Comfortable blowers (pumps) even when worn

The piezoelectric element amplitude is extremely small (at about dozens of µm). Therefore, people cannot feel the pump operating vibrations even when they are worn.
In addition, it produces almost no concerning vibration noises like with conventional motor pumps.

Microblowers allow even wearable devices to be used extremely comfortably without the user feeling uncomfortable vibrations.

Demonstration video

Thin and vibration-free: Aeration

This is a demonstration video using a microblower (MZB1001T02).
This microblower is thin and vibration-free. At the same time, it can supply air at a high airflow rate.

Can also be used for sucking applications

Fig of Can also be used for sucking applications
Image of Can also be used for sucking applications

Microblowers are devices that suck air from one side (suction side) and then send that air to the other side (discharge side).
Microblowers can also be for sucking applications if they are used on the suction side.*2

  • *2The sucking pressure is not guaranteed in some products.

Demonstration video

Negative pressure: Adhesion by suction

This is a demonstration video using a microblower (MZB1001T02).
We introduce how the air pressure of the microblower is used to adsorb and lift a weight.

Responsiveness: Indirect liquid conveyance

This is a demonstration video using a microblower (MZB1001T02).
We use two microblowers for discharge and suction to indirectly transport liquid using air pressure.

Negative pressure: Crushing a plastic bottle (with suction)

This is a demonstration video using a microblower (MZB4001T05).
We introduce how an empty PET bottle can rapidly crushed by high suction power.

Negative pressure: Suctioning a viscous liquid

This is a demonstration video using a microblower (MZB4001T05).
You can confirm the high suction pressure of the MZB4001T05 that does not succumb to viscosity.

Smooth supply with discharge without pulsation

Fig of Smooth supply with discharge without pulsation
Image of Smooth supply with discharge without pulsation

Microblowers apply the high-speed vibrations of a piezoelectric body in the pump drive unit. Accordingly, there is almost no pulsation in the discharged air. That means it is possible to discharge air at a stable flow rate.
If you use a microblower, high-precision measurement is possible even with measuring instruments for which air pulsation affects the sensing accuracy.

Demonstration video

Lightweight, high airflow rate: Hovering use

This is a demonstration video using a microblower (MZB1001T02).
You can see how a hovercraft moves smoothly without any air pulsation.

Send air in the desired instant

Fig of Send air in the desired instant
Image of Send air in the desired instant

Microblowers use the high-frequency vibrations of a piezoelectric element. Accordingly, the quick reaction from switch-on to discharge is one of their features.
It is possible to send air without missing the necessary moment.

For example, it is also possible to apply microblowers to spatial production such as by releasing a scent at the right time to match images and sounds.

Demonstration video

Responsiveness: Floating a ball by blowing air from below

This is a demonstration video using a microblower (MZB1001T02).
You can confirm the high responsiveness of the microblower from the sight of the air being discharged immediately after the switch is turned on.

Easily control the air characteristics by adjusting the input voltage

Fig of Easily control the air characteristics by adjusting the input voltage
Image of Easily control the air characteristics by adjusting the input voltage

The amplitude of the piezoelectric material changes instantaneously according to the voltage. Therefore, you can also easily control the pump characteristics by changing the input voltage with respect to the oscillation circuit.
It is possible to change the ultimate pressure by controlling the voltage even with the same operating time.

The flow rate and pressure can be increased with one touch

Fig of The flow rate and pressure can be increased with one touch
Image of The flow rate and pressure can be increased with one touch

It is possible to increase the flow rate and pressure according to the number of microblowers used.*3
Theoretically, the air characteristics can be improved as follows.

  • The flow rate is added up according to the number of microblowers used when using them in parallel.
  • The pressure is added up according to the number of microblowers used when connecting them in a series.*4
  • *3We do not guarantee the pressure flow rate performance when using multiple microblowers.
    The pressure may be smaller than the theoretical values under usage conditions such as when loss arises.
  • *4There are restrictions on the actual number of microblowers that can be connected when using them in a series.
    The reliability of the components from using microblowers in a series has not been confirmed. Therefore, use may not be permitted.

Demonstration video

Pressurizing (expansion): Balloon

This is a demonstration video using a microblower (MZB3004T04).
We introduce an arrangement layout example with an animation at the end of the video.

Applications

  • Gas detectors
  • Odor measuring instruments
  • Aroma diffusers
  • Aerator
  • Smartwatches
  • Sphygmomanometers
  • Breast pumps
  • Suction device
  • Exhalation devices
  • Partial massaging machines
  • PCR testing machines
  • *If the microblower is used for medical applications, murata requires a special contract to cover the use in the medical application to be agreed before start of mass production. Please contact us for details.