Magnetic suspension type fan device

Abstract

The invention provides a magnetic suspension type fan device, which comprises a fixed shell and a magnetic suspension shell provided with an impeller, wherein the fixed shell and the magnetic suspension type shell are respectively provided with a magnet unit. When the magnet units have repellent magnetic forces, the magnetic suspension shell is magnetically suspended on the fixed shell so as to prevent vibration of the magnetic suspension shell from being transferred to the fixed shell.

Description

【Technical field】 [0001] The present invention mainly relates to a maglev shock-absorbing fan, in particular to using the principle of maglev to magnetically float a maglev casing with an impeller on a fixed casing. 【Background technique】 [0002] As the processing speed of today's computers is getting faster and faster, the computer generates a lot of waste heat. In order to quickly discharge the waste heat out of the computer casing, more fans are installed on the casing to help dissipate heat. However, the vibration generated when the fan rotates will cause the case to resonate, so that other electronic devices installed on the case will be affected by the vibration. In particular, storage devices such as hard disks are easily affected by the aforementioned vibrations during operation, causing the read head to scratch the hard disk, resulting in bad tracks and data damage. In severe cases, it may even cause damage to the hard disk. [0003] The generally known method is ...

AI Technical Summary

Problems solved by technology

However, the vibration generated when the fan rotates will cause the case to resonate, so that other electronic devices installed on the case will be affected by the vibration.

Especially storage devices such as hard disks are easily affected by the aforementioned vibrations during operation, causing the read head to scratch the hard disk, resulting in bad tracks and data damage. In severe cases, it is even more likely to cause damage to the hard disk.

[0003] The generally known method is to add a shock-absorbing design between the inside of the casing and the fan, such as adding a gasket between the fan and the casing to buffer the vibration transmitted by the fan, but because the fan still passes through the pad If the chip is in contact with the casing, its shock absorption effect is limited, and its shock absorption effect cannot meet the requirements

[0004] Another method is to add a magnetic levitation design between the impeller of the fan and the motor, but since the motor drives the impeller at a very high speed and the fan itself is still locked on the casing, the vibration of the motor itself and the rapid rotation of the impeller will cause The vibration generated when the airflow is driven will still be transmitted to the casing. If the number of fans is large, the minimum vibration requirement cannot be met.

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