Support structure of a cooling fan

Abstract

A support structure of a cooling fan includes a base and a tube. The base has a raised section perpendicularly extending from the base and defining a first opening with a first inner diameter. A reception section is formed between the base and the raised section and has a first end and a second end connected with the raised section and base respectively. A second opening is formed between the first and second ends in communication with the first opening and has a second inner diameter equal to the first inner diameter and a third inner diameter larger than the second inner diameter. The tube is fitted in the first and second openings and has a first flange and a second flange mated with the raised section and reception section respectively. The second flange has a third end and a fourth end corresponding to the first and second ends respectively.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a support structure of a cooling fan, and more particularly to a support structure of a cooling fan, which is made by insertion injection molding. Although the base and the tube of the support structure are made of different materials, the base and the tube can be still precisely and securely assembled with each other.BACKGROUND OF THE INVENTION[0002]In the existent 3C electronic products, the electronic components will generate high heat in operation. The heat must be dissipated efficiently. Otherwise, the temperature will rise to cause damage or even burnout of the electronic components. In order to dissipate the heat and avoid damage of the electronic components, at least one heat dissipation unit (such as a radiating fin assembly or a heat sink) and a cooperative cooling fan are arranged in the electronic product to dissipate the heat generated by the electronic components so as to prolong the lifetime thereof.[0003]A ...

AI Technical Summary

Benefits of technology

[0011]A primary object of the present invention is to provide a support structure of a cooling fan, which is made by insertion injection molding. Although the tube and the base of the support structure are made of different materials, the tube and the base can be still precisely and securely assembled with each other.

[0012]A further object of the present invention is to provide the above support structure of the cooling fan, which is manufactured at lower cost.

[0013]Still a further object of the present invention is to provide the above support structure of the cooling fan, in which the structural precision of the base and the tube is enhanced.

[0014]To achieve the above and other objects, the support structure of the cooling fan of the present invention includes: a base having a raised section perpendicularly extending from a surface of the base, the raised section having a free end defining a first opening having a first inner diameter, a reception section being formed between the base and the raised section, the reception section having a first end connected with the raised section and a second end connected with the base, a second opening being formed between the first end and the second end in communication with the first opening, the second opening having a second inner diameter equal to the first inner diameter and a third inner diameter larger than the second inner diameter; and a tube correspondingly fitted in the first opening and the second opening. The tube has a first flange and a second flange, which are disposed around the tube. The first flange is mated with the raised section. The second flange is mated with the reception section. The second flange has a third end corresponding to the first end and a fourth end corresponding to the second end. The support structure of the cooling fan is made by means of insertion injection molding. Although the base and the tube of the support structure are made of different materials, the base and the tube can be still precisely and securely assembled with each other. The support structure of the cooling fan is manufactured at lower cost and the structural strength and structural precision of the base and the tube are enhanced.

[0015]According to the above, the present invention has the following advantages:

Problems solved by technology

Otherwise, the temperature will rise to cause damage or even burnout of the electronic components.

However, the thickness of the plastic wall of the frame body made by injection molding is limited.

It is hard to manufacture a frame body with a thin plastic wall.

Moreover, in the case that a thin metal sheet is used as the base of the frame body of the cooling fan, the frame body will have a flow way in the form of an arcuate reverse angle and is hard to manufacture.

In addition, the metal material is expensive and it is difficult to precisely control the size of the base.

As a result, the manufacturing cost is increased due to the additional copper-made central sleeve and the manufacturing process is complicated as well as the working time is increased.

Furthermore, after processed, the support structure often has the problem of unstable verticality.

Therefore, the conventional support structure of the cooling fan has the following defects:1. Higher cost.2. It is hard to control the size.3. Poorer precision.4. It is hard to assemble the support structure.5. Longer working time.

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