Centrifugal fan impeller structure

Abstract

A centrifugal fan impeller structure includes a hub and a second annular body. The hub has an extension section. A first annular body is connected to a free end of the extension section. The first annular body has a first side and a second side. A first blade set is disposed on the first side. The second annular body has a third side and a fourth side. A second blade set is disposed on the third side. The fourth side is mated and connected with the second side. The centrifugal fan impeller structure is able to greatly increase air volume and wind pressure of the fan. Moreover, in operation, the centrifugal fan impeller structure makes less noise.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates generally to a centrifugal fan impeller structure, and more particularly to a centrifugal fan impeller structure with double layers of blades for enhancing flow guide effect and increasing wind pressure of the fan. Moreover, in operation, the centrifugal fan impeller structure makes less noise.[0003]2. Description of the Related Art[0004]Following the rapid development of electronic industries, the performances of electronic components have been continuously enhanced. When operating at high speed, the electronic components generate high heat. It is necessary to efficiently dissipate the heat. Otherwise, the temperature will rise very quickly to deteriorate the performances of the electronic components or even cause burnout of the electronic components. In general, a miniaturized centrifugal fan is mounted in a limited space of the system for dissipating the heat generated by the electronic ...

AI Technical Summary

Benefits of technology

The present invention is about a new type of fan that can increase the amount of air it blows by using a special design. This design increases the pressure of the air and improves the fan's ability to direct the air flow. The fan is also quieter in operation, making it more efficient and effective. Overall, this new fan has two main benefits: it increases air volume and wind pressure.

Problems solved by technology

When operating at high speed, the electronic components generate high heat.

Otherwise, the temperature will rise very quickly to deteriorate the performances of the electronic components or even cause burnout of the electronic components.

However, only limited effect is achieved by such change so that the requirements of users are still unfulfilled.

This is because the frame body is quite narrow and it is hard to vary the configuration or structural design of the fan blades in such a narrow space.

1. The structural design is limited.

2. It is hard to increase the wind pressure.

3. The flow guide effect is poor.

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