Patent Application
20070240868
1. Field of the Invention
The present invention relates to an air-guiding structure for a heat-dissipating fin, and in particular to an air-guiding structure for a heat-dissipating fin capable of forming the external cooling air into a three-dimensional turbulent flow and further extending the staying duration of the external cooling air.
2. Description of Prior Art
With the increase of the processing rate and operating frequency of the integrated circuit elements such as CPU, these elements thus can generate more and more heat during operation. Unfortunately, such a high amount of heat will cause harmful effects to all integrated circuit elements. Therefore, it is very important to provide a heat-dissipating fin capable of rapidly dissipating the heat from the integrated circuit elements. After a plurality of heat-dissipating fins are manufactured by press-forming, those heat-dissipating fins are vertically superposed on one another by means of manual operation or machine, so that a flowing path is formed between adjacent two heat-dissipating fins. In this way, a conventional heat-dissipating fin assembly can be obtained. Then, a heat-dissipating fan is mounted at one side of the heat-dissipating fin assembly, so that the heat generated by CPU can be heat-transferred the heat-dissipating fin assembly. Thereafter, with the heat-dissipating fan blowing the cooling air into the heat-dissipating fin assembly, the cooling air can pass through the flowing path between two heat-dissipating fins and carry the heat source out of the heat-dissipating fin assembly.
However, since the cooling air generated by the above heat-dissipating fan rapidly passes through the flowing path between two heat-dissipating fins without any hindrance, the cooling air cannot completely carry the heat source out of the heat-dissipating fin assembly, resulting in the poor efficiency in the heat-dissipating fin assembly.
Therefore, in view of the above the drawbacks, the inventor proposes the present invention to overcome the above problems based on his expert experiences and deliberate researches.
The present invention is to provide an air-guiding sure for a heat-dissipating fin. By pressing a metallic plate, the heat-dissipating fin is manufactured to define two long sides and two short sides. Both long, sides are bent toward the same direction to form two partitioning pieces. With the enclosure of the two partitioning pieces, a flowing path is formed in two adjacent heat-dissipating fins. Both short sides are used to be an inlet and an outlet for external cooling air. Each heat-dissipating fin is provided with plural sets of air-guiding portions. Each air-guiding portion comprises a plurality of thorns made by stamping. Each of the thorns is arranged non-linearly and oriented to face both short sides.
With the above arrangement, when the external cooling air enters the inlet of the heat-dissipating fin and passes through the flowing path, as soon as contacting with the thorns of the air-guiding portion, the cooling air is hindered to form a three-dimensional turbulent flow on the heat-dissipating fin. As a result, the duration within which the cooling air stays in the heat-dissipating fin can be extended to efficiently carry the heat source out of the heat-dissipating fins, thereby to improve the efficiency in heat dissipation.
Another, the present invention is to provide an air-guiding structure for a heat-dissipating fin. The plural sets of air-guiding portions can be arranged on the heat-dissipating fin in a regular or irregular way, and the non-linear arrangement of the thorns may be curved or “<”-shaped.
The detailed description and the technical contents of the present invention will be explained with reference to the accompanying drawings. However, it should be understood that the drawings are illustrative but not used to limit the scope of the present invention.
The present invention is directed to an air-guiding structure for a heat-dissipating fin. With reference to
With reference to
In the present invention, many heat-dissipating fins 1 are superposed on one another to form a heat-dissipating fin assembly 10, as shown in
With reference to
According to the above description, the present invention provides plural sets of air-guiding portions 2 on each heat-dissipating fin 1, so that the external cooling air can be formed into a three-dimensional turbulent flow on the heat-dissipating fin 1. As a result, the duration within which the cooling air stays in the flowing path 12 can be extended to efficiently carry the heat source out of the heat-dissipating fins 1, thereby to greatly improve the efficiency in the heat dissipation.
Alternatively, with reference to
According to the above, the present invent indeed achieves the desired effects by employing the above structures. Further, since the construction of the present invention has not been published or put to public use prior to applying for patent, the present invention involves the novelty and inventive steps, and conforms to the requirements for a utility model patent.
Although the present invention has been described with reference to the foregoing preferred embodiments, it will be understood that the invention is not limited to the details thereof. Various equivalent variations and modifications can still be occurred to those skilled in this art in view of the teachings of the present invention. Thus, all such variations and equivalent modifications are also embraced within the scope of the invention as defined in the appended claims.
