Connecting apparatus adapted in a board module

This application claims priority to Taiwan Application Serial Number 96141044, filed Oct. 31, 2007, which is herein incorporated by reference.

The present invention relates to a connecting apparatus. More particularly, the present invention relates to a connecting apparatus adapted in a board module.

Computers have become an indispensable device in daily life. Computers can deal with documents, compute the data of experiments, provide multimedia entertainment and spread information through the internet. The laptop is especially very popular because of its convenience.

The conventional laptop uses screws to enhance the connection between the main board and the plate modules such as a network card, graphics card and sound card. In order to make the screws tight enough to lock the plate modules, gum is used on the screw to prevent loosing. However, Adding gum on the screw would decrease the times for using and increase the material and the cost of the product. Furthermore, the procedure to lock the plate modules with screws is time consuming.

Accordingly, what is needed is a connecting apparatus that can avoid the inconvenience, the waste of time and the increase of cost with the use of screws described above to overcome the above issues. The present invention addresses such a need.

The invention provides a connecting apparatus comprising: a cylindrical main body comprising a hole placed eccentrically passing through the main body; a bulge comprising a curve trench formed on the top of the cylindrical main body wherein the curve trench comprises two recession on two ends of the curve trench; and a rotary device that can make a relative rotation to the cylindrical main body, wherein the rotary device comprises: a rotary plate; a pivot placed eccentrically on the rotary plate wherein the pivot is passing through the hole on the main body; and a protrusion placed near an edge of the rotary plate, wherein the protrusion can fit with one of the recessions of the curve trench of the bulge.

Another object of the present invention is to provide a board module comprising: a first board; at least one connecting apparatus placed on the first board, wherein the connecting apparatus further comprising: a cylindrical main body comprising a hole placed eccentrically passing through the main body; a bulge comprising a curve trench formed on the top of the cylindrical main body wherein the curve trench comprises two recessions on two ends of the curve trench; a rotary device that can make a relative rotation to the cylindrical main body, wherein the rotary device comprises: a rotary plate; a pivot placed eccentrically on the rotary plate wherein the pivot is passing through the hole on the main body; and a protrusion placed near an edge of the rotary plate, wherein the protrusion can fit with one of the recessions of the curve trench of the bulge; and a second board having at least one hole corresponding to the at least one connecting apparatus, wherein the shape and size of the at least one hole and the bulge of the at least one connecting apparatus are substantially the same.

It is to be understood that both the foregoing general description and the following detailed description are by examples, and are intended to provide further explanation of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention can be more fully understood by reading the following detailed description of the embodiment, with reference made to the accompanying drawings as follows:

FIG. 1 is a diagram of a board module and a connecting apparatus of an embodiment of the present invention;

FIG. 2A is an exploded view of the connecting apparatus of FIG. 1;

FIG. 2B is a perspective view of the cylindrical main body and the bulge of the connecting apparatus of FIG. 1;

FIG. 2C is a cross-sectional view of the connecting apparatus of FIG. 1;

FIG. 3A is a 3-dimentional view of the board module of FIG. 1; and

FIG. 3B is another 3-dimentional view of the board module of FIG. 1.

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