Manufacturing Method of Isothermal Vapor Chamber And Product Thereof
A manufacturing method of a isothermal vapor chamber and a product thereof are to use an integrated manner to form an orifice directly on a plate body of a isothermal vapor chamber. Through the orifice, the operations of injecting working fluid and degassing or vacuating can be proceeded. The orifice is functionally similar to a degassing tube or a vacuating tube of the prior arts. However, since the orifice is integrated on the plate body of the isothermal vapor chamber body, it can be pressed to seal the isothermal vapor chamber after an operation of degassing. Therefore, the vacuity in the isothermal vapor chamber and the stored amount of the working fluid, and it is easier for manufacture.
1. Field of the Invention
The present invention generally relates to a cooling technique, in particular, to a heat pipe.
2. Description of Prior Art
An isothermal vapor chamber is a kind of heat pipes formed as a flat plate, which has a similar working principle as a common heat pipe. Namely, through an internal environment of vacuum, a working fluid contained therein can generate a phase change from liquid to vapor for transferring heat from a heated end to a cooling end. The working fluid condenses into liquid phase at the cooling end, flows back to the heated end and repeats the cycle.
However, an isothermal vapor chamber is different from a heat pipe in terms of manufacture process. The tube body of a heat pipe is usually formed as a tube configuration, one end of which can be sealed first, then another side of which can be processed with the operations of injecting working fluid and degassing. Immediately after the degassing is finished, the tube body is sealed so as to complete a manufacturing process of a heat pipe. Nonetheless, the plate body of an isothermal vapor chamber is form as a flat plate, which is constructed by closing two plates that are closed up. Not only do the circumferential edges of the closing two plates have to be sealed, but also an injection port has to be pre-made as well, such that it may process aforementioned operations, such as: an injection of working fluid, a de-aeration, or an evacuation, etc. During the manufacturing process of an isothermal vapor chamber according to the prior arts, a de-aerating tube or an evacuating tube has to be inserted into the injection port first, such that it is possible to process the operations of an injection of working fluid, a de-aeration, and an evacuation. After aforementioned operations are finished, the de-aerating tube or the evacuating tube has to be removed, so that it is possible to seal the injection port subsequently. Under such circumstance, the vacuity in the isothermal vapor chamber and the stored amount of the working fluid will be influenced and out of accurate control. In the meantime, the manufacturing process is more difficult.
Accordingly, aiming to solve aforementioned shortcomings, after a substantially devoted study, in cooperation with the application of relatively academic principles, the inventor has at last proposed the present invention that is designed reasonably to possess the capability to improve the prior arts significantly.
SUMMARY OF THE INVENTIONThe invention is mainly to provide a manufacturing method of an isothermal vapor chamber and a product thereof. According to the invention, an integrating manner is applied to form an orifice directly on a plate body of an isothermal vapor chamber for being able to process the operations of an injection of working fluid, a de-aeration, and an evacuation. The orifice is functionally similar to a degassing tube or a vacuating tube in the prior arts but, since the orifice is integrated on the plate body of the isothermal vapor chamber, as soon as aforementioned operations have been processed, an immediate pressing and sealing operation can be subsequently processed, so it is possible to accurately control the vacuity in the isothermal vapor chamber and the stored amount of the working fluid. Furthermore, its manufacturing method is much easier.
To achieve the above-mentioned objects, the invention is to provide an isothermal vapor chamber, which includes a hollow plate body and a capillary structure attached on inner walls thereof. According to the invention, the plate body is constructed by closing two plates. There are sealing sides formed around the circumferences of the closing two plates. Particularly, a welding part is arranged at the outer edges between the sealing sides of the closing two plates, and a projected orifice is integrated on any one of the sealing sides.
The features of the invention believed to be novel are set forth with particularity in the appended claims. The invention itself, however, may be best understood by reference to the following detailed description of the invention, which describes a number of exemplary embodiments of the invention, taken in conjunction with the accompanying drawings, in which:
In cooperation with attached drawings, the technical contents and detailed description of the present invention are described thereinafter according to a number of preferable embodiments, being not used to limit its executing scope. Any equivalent variation and modification made according to appended claims is all covered by the claims claimed by the present invention.
Please refer to
First, the method combines two plates to form a hollow plate body having an accommodating space in step S1. Secondly, the method forms a projected orifice on one of the plates in step S2. After step S2, the method seals circumferential edges of the plate body except the orifice in step S3. Next, the method vacuates the accommodating space via the orifice in step S4. Finally, the method press the orifice to close up in step S5.
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According to aforementioned step flowchart, it is possible to obtain a manufacturing method of the above-mentioned isothermal vapor chamber.
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According to aforementioned structure, an isothermal vapor chamber of the present invention is thereby obtained.
Summarizing aforementioned description, the invention is an indispensably novel structure for a compressor indeed, which may positively reach the expected usage objective for solving the drawbacks of the prior arts, and which extremely possesses the innovation and progressiveness to completely fulfill the applying merits of new type patent, according to which the invention is thereby applied. Please examine the application carefully and grant it as a formal patent for protecting the rights of the inventor.
However, the aforementioned description is only a preferable embodiment according to the present invention, being not used to limit the patent scope of the invention, so equivalently structural variation made to the contents of the present invention, for example, description and drawings, is all covered by the claims claimed thereinafter.
Claims
1. A manufacturing method of an isothermal vapor chamber, including following steps:
- a) combining corresponding two plates to form a hollow plate body having an accommodating space therein;
- b) integratedly forming a projected orifice on one of the plates, wherein the orifice communicates to the accommodating space;
- c) sealing circumferential edges of the plate body except the orifice;
- d) vacuating the accommodating space in the plate body via the orifice; and
- e) pressing the orifice to close up.
2. The manufacturing method according to claim 1, wherein step c) further includes sealing the two plates by means of welding.
3. The manufacturing method of according to claim 2, wherein the welding means is meant by a diffusive or plasma welding process.
4. The manufacturing method according to claim 1, wherein step d) further includes injecting a working fluid into the plate body via the orifice.
5. The manufacturing method according to claim 1, further comprising a step f after the step e:
- melting the orifice.
6. An isothermal vapor chamber, comprising:
- a hollow plate body composed of two plates, having an accommodating space therein, wherein circumferential edges of the plate body are all formed as sealing sides, outer edges of the sealing sides are all arranged with welding portions, a projected orifice integratedly extends from one of the sealing sides, and one portion of the orifice is of a flat shape to be sealed; and
- a capillary structure attached on inner walls of the plate body.
7. The isothermal vapor chamber according to claim 6, wherein each contour of the two plates is of a rectangular shape, and at least one beveled corner is reserved at an intersection of any two adjacent sealing sides of the two plate, while the orifice is located at the corner.
8. The isothermal vapor chamber according to claim 6, wherein each contour of the two plates is of a circular shape.
9. The isothermal vapor chamber according to claim 6, wherein the orifice includes a shrunk tube and an expanded tube communicated to one end of the shrunk tube, and the flat part of the orifice is just the shrunk tube.
10. The isothermal vapor chamber according to claim 9, wherein an outer edge of the expanded tube of the orifice is further formed as a sealing side.
Type: Application
Filed: Jan 15, 2008
Publication Date: Jul 16, 2009
Inventor: Chin-Wen WANG (Pingzhen City)
Application Number: 12/014,145
International Classification: F28D 15/00 (20060101);