Patent Publication Number: US-2015060036-A1

Title: Assembled aluminum extrusion heat dissipator

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention generally relates to an aluminum extrusion heat dissipator, more particularly to an assembled aluminum extrusion heat dissipator. 
     2. Description of the Related Art 
     Nowadays, electronic devices are equipped with heat dissipators, in order to lower temperatures. Since when temperature goes up, the electronic device may be abnormal or damaged. 
     For example, the structure of an aluminum extrusion heat dissipator adopts a plurality of fins that are parallelized and vertically extend from a heat-conducting plate of the aluminum extrusion heat dissipator. In practice, the heat-conducting plate is adhered to a heating component so as to dissipate heat via the fins with a totally large area. 
     Generally speaking, a heat dissipator dissipating heat from a heating electronic device adopts the two ways of forced convection flow and natural convection flow. The forced convection flow uses a fan to exclude heat, therefore the gap between the two fins of the fan can be smaller, and under a unit area, the amount of the fin may be more to promote the heat-dissipating effect. On the other hand, the natural convection flow may not use a fan, since if the gap is too small, the obstruction to air flow may be increased. That is to say, the heat-dissipating effect will be lowered down correspondingly. Hence the gap between two fins may have to be controlled in a certain distance. 
     In addition, to design the fins of a current aluminum extrusion heat dissipator shall develop a mold to fit the practical demands of lengths, widths, and gaps of a fin. If there are other products, other new developed molds or altered molds shall be proceeded. Accordingly, the time of development must be prolonged and cost will increase. 
     Therefore, the inventor spends time to research the issue, and finally proposes the present invention that figures out aforesaid shortcomings 
     SUMMARY OF THE INVENTION 
     The main objective of the present invention is to provide an assembled aluminum extrusion heat dissipator, so as to increase the flexible application of the heat dissipator, reduce the time of development, and save cost. 
     To approach above objective, an assembled aluminum extrusion heat dissipator of the present invention comprises a heat-conducting plate and at least one U-shaped heat-dissipating member. The surface of the heat-conducting plate has a plurality of slots that are parallel to each other, the slot is constructed by two boards that are spaced, the boards outwardly extend from the surface of the heat-conducting plate, and each of the slots extends from one side of the heat-conducting plate to another corresponding side. The U-shaped heat-dissipating member has a U-shaped body and a plurality of heat-dissipating fins. The U-shaped body has a bottom plate and a pair of lateral plates that bend and extend from the two opposite sides of the bottom plate, the heat-dissipating fins extend from the inner wall of one of the lateral plates to the other lateral plate. Wherein the distance between the pair of lateral plates is corresponding to the distance of the two adjacent slots, so that the pair of lateral plates insert into the two adjacent slots, and the U-shaped heat-dissipating member integrates with the heat-conducting plate. 
     The second objective of the present invention is to provide the assembled aluminum extrusion heat dissipator, wherein the plurality of the U-shaped heat-dissipating members in any of the two adjacent slots are serially or intermittently arranged, and the plurality of the U-shaped heat-dissipating members are different in height or length, in order to keep away from other components and increase flexibility for the application. Compared to related arts, the assembled aluminum extrusion heat dissipator is to insert the U-shaped heat-dissipating members into the slots of the heat-conducting plate. Through plural arrangements of the U-shaped heat-dissipating members, different heat dissipators based on practical demands may be assembled. Besides, using the U-shaped heat-dissipating members with different heights or lengths, a height difference is formed in order to keep away from other components for more applications, wherein the U-shaped heat-dissipating members with different heights or lengths are produced by different molds. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The objects, spirits, and advantages of the preferred embodiments of the present invention will be readily understood by the accompanying drawings and detailed descriptions, wherein: 
         FIG. 1  illustrates a schematic perspective view of the assembled aluminum extrusion heat dissipator of the present invention; 
         FIG. 2  illustrates a schematic perspective exploded view of the assembled aluminum extrusion heat dissipator of the present invention; 
         FIG. 3  illustrates a schematic assembled sectional view of the assembled aluminum extrusion heat dissipator of the present invention; 
         FIG. 4  illustrates another schematic application view of the assembled aluminum extrusion heat dissipator of the present invention; 
         FIG. 5  illustrates still another schematic application view of the assembled aluminum extrusion heat dissipator of the present invention; and 
         FIG. 6  illustrates yet another schematic application view of the assembled aluminum extrusion heat dissipator of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Following preferred embodiments and figures will be described in detail so as to achieve aforesaid objects. 
     Please refer to  FIGS. 1-3 , which illustrate a schematic perspective view of the assembled aluminum extrusion heat dissipator of the present invention, a schematic perspective exploded view of the assembled aluminum extrusion heat dissipator of the present invention, and a schematic assembled sectional view of the assembled aluminum extrusion heat dissipator of the present invention. The assembled aluminum extrusion heat dissipator  1  of the present invention comprises a heat-conducting plate  10  and at least one U-shaped heat-dissipating member  20 . The heat-conducting plate  10  and the U-shaped heat-dissipating member  20  are an aluminum extrusion component respectively. The bottom surface of the heat-conducting plate  10  is adhered to a heating component, and the other surface, corresponding to the bottom surface, of the heat-conducting plate  10  is integrated with the at least one U-shaped heat-dissipating member  20 . 
     The heat-conducting plate  10  is made of aluminum with an outstanding thermal conductivity. The surface  101  of the heat-conducting plate  10  has a plurality of slots  11  that are parallel to each other. Each of the slots  11  extends from one side of the heat-conducting plate  10  to another corresponding side. For the preferred embodiment, the distance between every two adjacent slots  11  is equal to the other distance between every other two adjacent slots  11 . The slot  11  is constructed by two boards  12  that are spaced, and the boards  12  outwardly extend from the surface  101  of the heat-conducting plate  10 . In practice, the extended boards  12  slightly have elastic deformation forces. The bottom of each slot  11  is not lower than the surface  101 . The position of the bottom of the slot  11  is not limited thereto, and practically the bottom of the slot  11  can be lower or higher than the surface  101 . 
     The U-shaped heat-dissipating member  20  is made of aluminum with an outstanding thermal conductivity as well. The U-shaped heat-dissipating member  20  has a U-shaped body  21  and a plurality of heat-dissipating fins  22 . The U-shaped body  21  has a bottom plate  211  and a pair of lateral plates  212  that bend and extend from the two opposite sides of the bottom plate  211 . For the embodiment, a heat-dissipating channel  200  is among the bottom plate  211  and the pair of lateral plates  212  and is through the U-shaped body  21 . Besides, the heat-dissipating fins  22  extend from the inner wall of one of the lateral plates  212  to the other lateral plate  212 , wherein the distance between the pair of lateral plates  212  is corresponding to the distance of the two adjacent slots  11 , so that the pair of lateral plates  212  insert into the two adjacent slots  11 , and the U-shaped heat-dissipating member  20  integrates with the heat-conducting plate  10 . 
     For an embodiment of the present invention, the U-shaped heat-dissipating member  20  further comprises a support plate  23  which extends from the inner wall of one of the lateral plates  212  to the inner wall of the other lateral plate  212 . Preferably, the support plate  23  is disposed at a position far from the bottom plate  211 , in order to support the lateral plates  212  and prevent the deformation of the lateral plates  212  for keeping a certain distance between the two lateral plates  212 . 
     The amount of the U-shaped heat-dissipating member  20  is a plurality, and the two lateral plates  212  of each U-shaped heat-dissipating member  20  insert into the two adjacent slots  11  of the heat-conducting plate  10  so as to assemble the U-shaped heat-dissipating members  20  with the heat-conducting plate  10 . Since the slot  11  is formed by the two boards  12  with the elastic deformation forces, the two boards  12  then securely clamp the each lateral plate  212  of the U-shaped heat-dissipating member  20 , so the U-shaped heat-dissipating member  20  firmly integrates with the slots  11 . For an embodiment of the present invention, as shown in  FIG. 3 , the heights of the U-shaped heat-dissipating members  20  inserting into the heat-conducting plate  10  are equal to each other. In practice, the arrangement of the U-shaped heat-dissipating members  20  can be altered based on demands. 
     Please refer to  FIG. 4 , which illustrates another schematic application view of the assembled aluminum extrusion heat dissipator of the present invention. For the embodiment, the assembly of the heat-conducting plate  10  and the U-shaped heat-dissipating members  20  is mostly similar to aforesaid embodiment. The difference between the present embodiment and aforesaid embodiment is that at least one slot  11  is left between the two adjacent U-shaped heat-dissipating members  20 . The arrangement of the present embodiment is to reduce the density of the U-shaped heat-dissipating members  20  on the heat-conducting plate  10 . In other words, the gap between every two adjacent U-shaped heat-dissipating members  20  is enlarged. 
     Please refer to  FIG. 5 , which illustrates still another schematic application view of the assembled aluminum extrusion heat dissipator of the present invention. For the embodiment, the assembly of the heat-conducting plate  10  and the U-shaped heat-dissipating members  20  is mostly similar to aforesaid embodiment. The difference between the present embodiment and aforesaid embodiment is that the heights of the U-shaped heat-dissipating members  20 ,  20 ′ inserting into the heat-conducting plate  10  are different. For the present embodiment, the U-shaped heat-dissipating members  20 ,  20 ′ with the same height are arranged as one set, and a height difference  100  is formed between two adjacent sets of the U-shaped heat-dissipating members  20 ,  20 ′. The height difference  100  is used to keep away from other components and may be varied based on demands. 
     Please refer to  FIG. 6 , which illustrates yet another schematic application view of the assembled aluminum extrusion heat dissipator of the present invention. For the embodiment, it is mostly similar to aforesaid embodiment. The assembled aluminum extrusion heat dissipator  1   a  comprises a heat-conducting plate  10   a  and a plurality of U-shaped heat-dissipating members  20   a ,  20   a ′. The heat-conducting plate  10   a  and the plurality of U-shaped heat-dissipating members  20   a ,  20   a ′ are aluminum extrusion components. The heat-conducting plate  10   a  has a plurality of slots  11   a  that are parallel to each other. The U-shaped heat-dissipating members  20   a ,  20   a ′ integrate with the slots  11   a  of the heat-conducting plate  10   a . The difference between the present embodiment and aforesaid embodiments is that there are separating two U-shaped heat-dissipating members  20   a ,  20   a ′ integrated with the slots  11   a.    
     For the present embodiment, two discontinuous U-shaped heat-dissipating members  20   a ,  20   a ′ are disposed on the two adjacent slots  11   a , and the U-shaped heat-dissipating members  20   a ,  20   a ′ can be different in height or length. Besides, the plurality of the U-shaped heat-dissipating members  20   a ,  20   a ′ are serially or intermittently arranged. The arrangement is to keep away from other components and may be varied based on demands. 
     Although the invention has been disclosed and illustrated with reference to particular embodiments, the principles involved are susceptible for use in numerous other embodiments that will be apparent to persons skilled in the art. This invention is, therefore, to be limited only as indicated by the scope of the appended claims.