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Heat dissipation fan and electronic equipment

A cooling fan and fan blade technology, applied to mechanical equipment, parts of pumping devices for elastic fluids, non-variable pumps, etc., can solve the problem of reducing the axis 201, large up and down deflection, and increasing Problems such as the diameter of the large fan blade 2 achieve the effect of reducing the occurrence of resonance and reducing the difference in force

Inactive Publication Date: 2021-04-20
NANCHANG HUAQIN ELECTRONIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The "thin and large" structural scheme not only reduces the depth of the shaft center 201 inserted into the U-shaped opening, but also increases the diameter of the fan blade 2, so the amplitude of the up and down deflection is relatively large, the running stability is lacking, and it may even cause other problems. The resonance of the components, the noise is obvious

Method used

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  • Heat dissipation fan and electronic equipment
  • Heat dissipation fan and electronic equipment
  • Heat dissipation fan and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides an electronic device, including a cooling fan.

[0047] It should be noted that the electronic device in this embodiment may be a notebook computer, a desktop computer, an all-in-one computer, a tablet computer, or an audio device.

[0048] see Figure 2 ~ Figure 4 , In this embodiment, the cooling fan includes an upper cover 4 , a bottom box 5 , a first magnetic assembly 6 , fan blades 2 and a second magnetic assembly 7 .

[0049] The bottom of the fan blade 2 is provided with an axis 201 for connecting with the rotating shaft 3 . The bottom box 5 is located under the upper cover 4 and is enclosed with the upper cover 4 to form an accommodating space for accommodating the fan blades 2 . The first magnetic component 6 is fixedly connected to the upper cover 4 , and the second magnetic component 7 is fixedly connected to the fan blade 2 . The second magnetic assembly 7 is arranged opposite to the first magnetic assembly 6, and is subjected to ...

Embodiment 2

[0061] see Figure 5 , this embodiment provides a heat dissipation fan, which can replace the heat dissipation fan in the first embodiment, and can also be used in the electronic device in the first embodiment.

[0062] The difference between the heat dissipation fan provided in this embodiment and the heat dissipation fan in Embodiment 1 is:

[0063] The first magnetic component 6 in this embodiment is fixed on the bottom box 5 , and the polarity of the magnetic pole is opposite to that of the second magnetic component 7 . For example, the first magnetic component 6 is S, and the second magnetic component 7 is N; or, the first magnetic component 6 is N, and the second magnetic component 7 is S.

[0064] The mutual attraction between the first magnetic component 6 and the second magnetic component 7 may also cause the fan blade 2 to be subjected to a downward external force.

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Abstract

The invention relates to the technical field of heat dissipation equipment, and particularly discloses a heat dissipation fan and electronic equipment. The heat dissipation fan comprises a first magnetic assembly, fan blades and a second magnetic assembly. The second magnetic assembly is fixedly connected with the fan blades. The second magnetic assembly is arranged opposite to the first magnetic assembly, and evenly applies external force to the fan blades around the axes of the fan blades under the magnetic action of the first magnetic assembly. According to the heat dissipation fan and the electronic equipment provided in the invention, the stability of the fan blades during operation can be effectively improved, the amplitude of up-and-down deflection is reduced, and noise reduction is realized.

Description

technical field [0001] The invention relates to the technical field of heat dissipation equipment, in particular to a heat dissipation fan and electronic equipment. Background technique [0002] Generally, a notebook computer uses a DC centrifugal fan as a main heat dissipation component. see figure 1 , a traditional DC centrifugal fan includes a bearing 1 , fan blades 2 and a rotating shaft 3 . Among them, the bearing 1 is fixed on the base of the notebook computer, and the U-shaped opening faces upward; the shaft center 201 of the fan blade 2 is inserted into the U-shaped opening; the upper end of the rotating shaft 3 is connected with the shaft center 201, and the lower end is connected with the bearing 1, thereby realizing the fan. The rotational connection between the blade 2 and the bearing 1. The characteristics of this structure are: [0003] ①The higher the bearing 1 and the shaft 201 (the thicker the DC centrifugal fan is), the deeper the shaft 201 is inserted ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/08F04D29/42F04D29/66
Inventor 熊凯刘韬
Owner NANCHANG HUAQIN ELECTRONIC TECH CO LTD