Patent Application
20080199766
1. Field of the Invention
The present invention relates to a power supply structure with an air guide effect, and more particularly to a structure that builds an opening on a casing of the power supply, and the periphery of the opening has inwardly inclined fillet surfaces, and the opening is installed with a bare fan without a frame, so that the structure not only increases the air intake angle and the airflow entering into the casing, but also reduces the overall volume of the casing and the production cost.
2. Description of the Related Art
In general, electronic devices install a power supply at the backside of a casing to supply the power required by the operation of the electronic devices. Referring to
During use, the heat produced by the power supply can be eliminated by using a heat dissipating fan to draw outside cold air into the casing, but such arrangement has the following drawbacks:
1. There is a limited amount of airflow entering into the casing. Since the heat dissipating fan is locked onto the opening of the casing, therefore it is necessary for the opening to reserve a space for the frame of the heat dissipating fan. As a result, the vane cannot be extended fully, and the airflow entering the casing will be affected adversely.
2. The air intake angle is restricted. Since the frame is disposed perpendicularly around the periphery of the vane, and the opening of the casing is also perpendicular to the opening, therefore only the air flowing in the direction perpendicular to the vane can be entered successfully. As a result, the air intake angle is restricted, and the airflow speed is affected adversely.
3. A dead corner of heat dissipation is produced. Since the space between a parallel side of the frame and the casing is limited by the frame, therefore hot air in such space cannot be dissipated effectively, and the heat dissipating effect is affected adversely.
4. The cost is increased. Since it is necessary to add a frame to support and fix the vane, therefore the production cost will be increased.
5. The volume is increased. The volume of the casing is increased greatly, if more heat dissipating fans are installed inside the casing for improving the airflow.
In view of the shortcomings of the prior art, the inventor of the present invention based on years of experience in the related industry to conduct extensive researches and experiments, and finally developed a power supply structure with an air guide effect in accordance with the present invention.
Therefore, it is a primary objective of the present invention to provide a power supply structure with an air guide effect, and the structure can effectively increase the airflow and the air intake angle to enhance the heat dissipating effect.
Another objective of the present invention is to provide a power supply structure with an air guide effect, and the structure has a casing for containing a power supply, and a surface of the casing has at least one opening, and the periphery of the opening has an inwardly inclined fillet surface, and the opening is installed with a bare fan without a frame, so that outside cold air can be guided successfully into the casing through the fillet surface to increase the airflow entering into the casing, so as to provide a better heat dissipating effect.
A further objective of the present invention is to provide a power supply structure with an air guide effect, and its fillet surface is an independent circular frame securely fixed into the opening of the casing.
Another objective of the present invention is to provide a power supply structure with an air guide effect, and its fillet surface has one or more air guide grooves with a predetermined interval apart, and the air guide grooves further guide outside air into the casing.
Another further objective of the present invention is to provide a power supply structure with an air guide effect, and its bare fan without a frame has a base precisely locked at the periphery of the base, and the base can be used for installing a vane instead of traditionally installing the vane into the frame, and thus the invention can reduce the volume of the casing significantly.
A further objective of the present invention is to lower the production cost of the product by omitting the frame.
A further objective of the present invention is to eliminate the dead corners incapable of dissipating heat in the space between the vane and the casing by means of the structural design of the invention.
To make it easier for our examiner to understand the technical characteristics of the invention, we use preferred embodiments together with the attached drawings for the detailed description of the invention.
Referring to
Further, the periphery of the fillet surface 12 has one or more protruding ears 13, and the protruding ears 13 separately have a locking hole 131 (as shown in
Referring to
In summation of the disclosures of the foregoing preferred embodiments, the design in accordance with the present invention overcomes the shortcomings and enhances the performance over the conventional structure by improving the intake airflow and heat dissipating efficiency of a power supply. The invention further complies with the patent application requirements and is duly filed for a patent application.
While the invention has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims.
