Many devices with electronic components are becoming more and more powerful and have ever higher packing densities. Convection cooling is the most common solution, and the cheapest method, using air as a medium to dissipate heat with forced air movement. The often increased heat development of convection cooling requires more powerful fans, which, however, should always be quieter.

In order to meet these requirements, manufacturer Nidec supplies innovative fan blades with consistent vibration reduction of the motor.

Origin of the noise generated in the fan.

Noise is often generated by a combination of different conditions (air flow, commutation from the motor). Nidec Servo’s Measures to eliminate or reduce flow noise are based on extensive analyzes and are technically not a problem.

However, it is difficult to satisfy the users who feel disturbed by the noise emitted by the fans, which can usually be traced back to the fan motor.

This is often triggered by tones up to 1000 Hz. The disruptive frequencies are specifically avoided by the new concept based on the blade-shaped fans and reduction of the resonance noise of the motors used. The fan's brushless DC motor relies on a patented double damping unit, which also prevents the vibrations produced by the fan. The result is a vibration reduction of approx. 66% compared to conventional fans.

Thanks to this the Nidec Servo "Gentle Typhoon" fan is 5 dB quieter than conventional fans and, with an installation depth of 25 mm, offers the same air performance as a conventional 32mm fan.
The 7 mm saved allows the designer to reduce the air resistance of the entire device, thus increasing the airflow and improving the cooling efficiency.
Thanks to its driver ICs, the new highly efficient brushless motor offers an energy saving potential of approx. 30%. Depending on the customer's requirements, these fans can also be equipped with speed sensors.
In the event of problems, they disconnect the system from the network and thus optimize the use of the device and its service life.

New in this Nidec Servo series is the D1225R Series: Low noise, High airflow, IP68 with optional PWM control.
Both Dust and Waterproof suitable for applications in harsh environments.

Other parameters also play an important role in the optimal selection of suitable fans:

Nidec also supplies centrifugal fans using the same efficient motors with integrated damping.

Dynetics just released the new fans & Blower’s catalog v7 2023.
Next to our parametric based Website a welcome tool for selecting fans or blowers for your future demand (collect a printed copy at our booth)

Website: http://www.dynetics.eu/products/fans-blowers/axial-fans/axial-fans-dc-types/gentle-typhoon/

The G series axial fan with pressure chamber still remains where a certain volume flow is required at high back pressure is necessary.The integrated pressure chamber with stationary blades ensures that there is much more pressure and volume flow at the operating point and that the fans perform above average.In contrast to centrifugal fans, where the flow direction swirls centrifugally, the outgoing air flow flows effectively and straight to the screw-on flange.The new G-Fan series shows that energy can be saved.First and foremost are performance, reliability and a long service life. The fan has an aluminum housing (Venturi) to cool the powerful motor, ensuring a service life of at least 100,000 hours at 40°C.Available are the fans with dimensions of □92x38mm; □120x38mm; □134x38mm; and Φ172 mm diameterpressure

Nippon Pulse's family of Linear Shaft Motors is the next generation linear brushless motor.
When reliability, zero maintenance, zero cogging, and precision are paramount, the Linear Shaft Motors from Nippon Pulse are an ideal component choice, offering the user uncompromised performance, ease of use, compact package size, and high value.

Our Linear Shaft Motors are more efficient than other similarly sized cylindrical linear motors. This is a product of the patented shaft design. This is reflected in the smaller package size and the high rated force constant of each motor.

The Linear Servo Motor’s shaft is a series of NIB Magnets placed on a non-ferrous rod in such a manner that there is no space between each magnet; this produces the structural strength of the Linear Shaft Motor. This structure is then placed in a protective stainless steel tube. When the non-ferrous rod is tensioned in the protective stainless steel tube a very rigid shaft is produced. This patented process is what allows the Linear Shaft Motor to achieve strokes of up to 4.6meters long. The linear motors can operate in heavy environments, vacuum and are waterproof (IP67)

Simple drive.
The Linear Shaft Motors have built-in flexibility to cater to most servo amplifiers. They can be driven by traditional three phase brushless DC servo (also called AC servo) drives. Several units can be networked to achieve a cluster of Linear Shaft Motors that can be synchronized with am network controller or a PC