1. Field of the Invention
The present invention relates to a tightly engaged heat dissipating apparatus and a method for manufacturing the same, especially to a heat dissipating apparatus manufactured by tightly engaging a heat dissipating unit with a thermal-conductive base together with a pressing force, whereby the yield and the heat dissipating effect can be enhanced.
2. Description of Related Art
FIGS. 1 to 3 show the structure and manufacturing process of a conventional heat dissipating apparatus for electronic devices. The conventional heat dissipating apparatus mainly comprises a flat base 1 made of highly thermal-conductive material, a plurality of grooves 11 defined on one surface of the base 1, a plurality of fin plate 12 each inserted into one of the grooves 11. As shown in those figures, pressing force is then exerted to both lateral sides of the base 1 to clamp tightly the plurality of fin plate 12 in the grooves 11, thus assembling the heat dissipating apparatus.
However, in above-mentioned heat dissipating apparatus with such manufacturing process, the base 1 is pressed on both lateral sides thereof. The center portion and the lateral portion of the base 1 may have uneven force. The fin plates 12 in the center grooves 11 away from the lateral sides of the base are not firmly clamped. The yield of the heat dissipating apparatus is influenced and the heat dissipating effect of the heat dissipating apparatus is degraded.
The present invention provides a heat dissipating apparatus manufactured by tightly engaging a heat dissipating unit with a thermal-conductive base together with a pressing force, whereby the yield and the heat dissipating effect can be enhanced.
Accordingly, the present invention provides a method for manufacturing a tightly engaged heat dissipating apparatus, comprising the steps of providing a heat-conductive base, forming a plurality of grooves on one surface of the base and forming a plurality of walls adjacent to the grooves, placing a plurality of heat dissipating units into the grooves, and uniformly and vertically pressing the wall to distort the wall with lateral distortion, whereby the heat dissipating units are clamped in the grooves.
Moreover, the present inventions also provides a tightly engaged heat dissipating apparatus, which comprises a thermal-conductive base comprising a plurality of grooves on one surface of the base and a plurality of walls adjacent to the grooves and deformable for providing clamping effect for the grooves, and a plurality of heat dissipating units firmly clamped into the grooves.
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 certain exemplary embodiments of the invention, taken in conjunction with the accompanying drawings in which:
FIGS. 4 to 9 show the processing steps of the method for manufacturing a tightly engaged heat dissipating apparatus by pressing according to a preferred embodiment of the present invention.
Step 1: Providing a thermal-conductive base 2, which is a flat base made of highly thermal-conductive material, as shown in
Step 2: Performing assembling step by forming a plurality of grooves 21 on one surface of the base 2 and a plurality of walls 22 adjacent to the grooves 21, and providing a plurality of heat dissipating units 3 inserted into the grooves 21 by one end thereof, as shown in
Step 3: Providing a processing tool 4, which comprises a plurality of pressing units 41 arranged on one face thereof and separated to each other. Each of the pressing units 41 is corresponding to a surface of the wall 22 and the adjacent pressing units 41, 41′ have same pitch therebetween to provide a gap for receiving one fin plate 31 of the heat dissipating units 3, as shown in
Step 4: Performing pressing step, the processing tool 4 is pressed against the thermal conductive base 2 with high pressure, as shown
Step 5: Removing the processing tool 4 and achieving a tightly engaged heat dissipating apparatus, as shown in
According to one preferred embodiment of the present invention, the heat dissipating unit 3 is composed of a plurality of fin plates 31 and forms the tightly engaged heat dissipating apparatus with the base 2.
According the method for manufacturing the tightly engaged heat dissipating apparatus, a simple processing tool 4 is employed to vertically press the wall 22 of the base 2. The wall 22 is subjected to uniform pressing force and expands toward the grooves 21 on both sides thereof. Therefore, one end of the fin plate 31 of the heat dissipating unit 3 can be firmly clamped by the grooves 21. The manufacturing method is simple and effective. The heat dissipating apparatus can be manufactured with lower cost and simpler steps.
The tightly engaged heat dissipating apparatus manufactured by above-mentioned method, as shown in
According to a preferred embodiment of the present invention, the heat dissipating unit 3 comprises a plurality of fin plates 31 as shown in
Afterward, the heat dissipating unit 3 with a plurality of heat pipe assembly 32 are assembled, wherein a heat-receiving end 33 of each heat pipe assembly 32 is inserted into one groove 21. A processing tool 4 with a plurality of pressing units 41 is used to press the wall 22 to distort the wall, as shown in
The heat dissipating apparatus manufactured by above-mentioned method, as shown in
Although the present invention has been described with reference to the preferred embodiment thereof, it will be understood that the invention is not limited to the details thereof. Various substitutions and modifications have suggested in the foregoing description, and other will occur to those of ordinary skill in the art. Therefore, all such substitutions and modifications are intended to be embraced within the scope of the invention as defined in the appended claims.