1. Field of the Invention
The invention relates to a fastening device for heat slug and, more particularly, to a fastening device for heat slug that is compatible with different types of CUP such as “Pentium IV” or “K7” types.
2. Description of the Related Art
As the fabrication techniques of computer progresses, a central processor unit (CPU) of the computer becomes increasingly smaller, and the amount of heat generated from the CPU is increasingly higher. In order to achieve an effective heat dissipation, a heat slug is usually attached on the CPU, which contributes to increase the service life and performance of the CPU.
The heat slug is usually formed by aluminum injection molding, pressure die casting or folding. A heat slug formed by either aluminum injection molding or pressure die casting has limited effective heat dissipating density (i.e. total heat dissipating area per volume) due to the capability of the mechanical process. As the processing speed of the CPU becomes higher, a heat slug-formed by folding, which has a higher effective heat dissipating density, becomes more popular than the heat slug formed by aluminum injection molding or pressure die casting.
CPUs of current generation generally include Pentium IV type CPUs designed by Intel, and K7 series CPU designed by AMD. Conventionally, a heat slug of the Pentium IV CPU is fastened on a mother board through a particular receiving base. A heat slug of K7 series CPU is fastened on the mother board without the need of any receiving bases. Therefore, no single heat slug can be used with both Pentium IV CPU and K7 series CPU.
It is therefore a principal object of the invention to provide a fastening device that is compatible with Pentium IV and K7 types CPUs, which lowers the required production cost.
To accomplish the above and other objectives, a fastening device for heat slug includes a frame, two projections and a heat slug. The frame defines an accommodating space therein. The projections are formed on the frame. The heat slug has a plurality of shoulders and is located in the accommodating space. The frame abuts against the shoulders of the heat slug. Thereby the fastening device of the invention is compatible with different types of CPUs such as Pentium IV and K7 types.
To provide a further understanding of the invention, the following detailed description illustrates embodiments and examples of the invention, this detailed description being provided only for illustration of the invention.
The drawings included herein provide a further understanding of the invention. A brief introduction of the drawings is as follows:
Wherever possible in the following description, like reference numerals will refer to like elements and parts unless otherwise illustrated.
Referring to
The projections 20 are made of, for example, metal. The projections 20 are either separately or integrally formed at two opposite sides of the frame 10. In this embodiment, the projections 20 are integrally formed with the frame 10. Each projection 20 has a reverse U-shaped boss 21. A plurality of fastening holes 24 are adequately distributed close to each projection 20.
In another embodiment, the projection 20 is separately formed with the frame 10, as shown in
The heat slug 30 is made of a thermally conductive material. The heat slug 30 has a plurality of fins 31 to increase the heat dissipating area. The heat slug 30 has two shoulders 32 at opposite bottom sides. The shoulders 32 can be either separately or integrally formed with the heat slug 30. The type and shape of the heat slug 30 may be various and not limited to the illustrated embodiment. The heat slug 30 is arranged in the accommodating space 11 in such a manner that the fins 31 of the heat slug 30 protrude through a top of the frame 10 with an adequate height and a bottom of the frame 10 abuts against the shoulders 32. Thereby, the fastening device for heat slug of the invention is accomplished.
Referring to FIG. 2 and
When the fastening device for heat slug of the invention is used with the Pentium IV type CPU 90, the CPU alternatively may be fastened through part of the fastening holes 24 without using the receiving base 80 for enclosing the CUP 90.
Referring to FIG. 4 and
The fastening device for heat slug of the invention can be used in CPU of various types such as Pentium IV and K7 as described above. Therefore, a manufacturer of the fastening device of the invention does not need to separately design specific devices for Pentium IV and K7. In other words, the fastening device of the invention is highly compatible with different types of CPU, which advantageously lowers the production cost.
It should be apparent to those skilled in the art that the above description is only illustrative of specific embodiments and examples of the invention. The invention should therefore cover various modifications and variations made to the herein-described structure and operations of the invention, provided they fall within the scope of the invention as defined in the following appended claims.
Number | Name | Date | Kind |
---|---|---|---|
6160709 | Li | Dec 2000 | A |
Number | Date | Country | |
---|---|---|---|
20040130875 A1 | Jul 2004 | US |