Abstract:
This invention provides a dynamic heat conduction system comprising a base, a resilient unit, a heat conduction block, and at least one securing unit. The base accommodates the resilient unit and the heat conduction block and the at least one securing unit secures at least a portion of the base and the resilient unit within the base. The heat conduction block comprises a heat conduction surface for forming a contact with an electronic device and accomplishes preferably efficient heat conduction by conducting the heat produced by the electronic device through the heat conduction surface, the heat conduction block, and a side surface of the heat conduction block to the base. Still, this invention provides a dynamic heat conduction system comprising a heat conduction board for accommodating a plurality of heat conduction blocks and a plurality of bases for forming a preferable heat conduction path with a plurality of electronic devices having different shapes or sizes.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    Field of the Invention 
         [0002]    This application relates to a dynamic heat conduction system. More particularly, this application relates to a dynamic heat conduction system applied to computer apparatus. 
         [0003]    Description of the Prior Art 
         [0004]    In computer apparatus, it generally used a heat conduction device with a heat conduction block to maintain the operation at a suitable temperature. The heat energy can be rapidly transferred from the electronic component to the heat conduction device by making the heat conduction block be closely contact to the electronic component that produced mass of heat. 
         [0005]    For making the heat conduction block of the heat conduction device be closely contacted to the processor, one traditional method is disposing a thermal pad in the gap between the heat conduction block and the processor. The thermal pad produces an amount of deformation when the heat conduction block contacts to the processor so that the thermal pad closely contacts to the heat conduction block and the processor simultaneously. However, such a thermal pad generally has a high thermal resistance and the heat conduction device cannot adapt to different heights of electronic components while the thickness of the thermal pad is decreased as low as possible. Therefore, traditionally, people have to design different heat conduction devices for a variety of electronic components of different heights, which leads to a high cost. In addition, such a thermal pad has no buffering capacity that it easily causes damages to the electronic components when being subject to an external force or vibration. 
         [0006]    Please refer to the heat conduction structure shown in  FIG. 1  (Taiwan Utility Patent No. M451797) which stands for another traditional method for heat conduction block, which discloses a heat conduction block  3  having downward displacement to exert force to a connecting portion  21  of the heat conduction pipe  2  and the resilient positioning plate  4  when the electronic components and the heat conduction blocks of the circuit board (Not shown) contact to each other. The heat conduction block  3  can closely contact to an electronic component in one side and the heat conduction pipe  2  in other side simultaneously. The heat conduction block and the heat conduction pipe are secured with spring screws to complete a heat conduction structure with low thermal resistance. However, such a traditional method for heat conduction block has the following disadvantages: the distortion of heat pipes may cause heat pipes failure; the cost of heat pipes and spring screws is higher; it is difficult to assemble the electronic components in different height; it is difficult to maintain the heat conduction blocks and the electronic components contacting closely; and the heat conduction structure has no buffering capacity so that it is easy to cause damage to the electronic components in the vibration environment. 
         [0007]    In addition, for the requirement of simultaneously processing heat conduction of a plurality of electronic components, the heat conduction device of the prior art is providing a corresponding heat conduction device for each electronic components. Therefore, the heat conduction block of the heat conduction device of the prior art obviously has inconveniences and defects which can be improved. 
       SUMMARY OF THE INVENTION 
       [0008]    In view of the problems of the traditional heat conduction blocks that described above, the present invention can avoid the damage of the heat conduction units and the electronic components caused by an external force when they are assembled, can keep the heat conduction units and the electronic components contacting closely at the same time, and can thus simplifying the process of a plurality of the electronic components which provided a plurality of the heat conduction units. 
         [0009]    In view of the purpose of the present invention, a dynamic heat conduction system is provided. The dynamic heat conduction system comprises a base, a heat conduction block, a resilient unit and at least one securing unit. The base has a base surface and an inner side wall which defines at least two base securing holes having a base securing hole length along the direction of a normal line to the base surface. The heat conduction block comprises a heat conduction side wall and a heat conduction surface, the heat conduction side wall being opposite to the inner side wall of the base and a gap is defined between the heat conduction side wall and the inner side wall of the base. The heat conduction side wall comprises at least two heat conduction block securing holes at positions respectively corresponding to those of the base securing holes, the heat conduction block securing holes have a heat conduction block securing hole length along the direction of a normal line to the base surface of the base. The resilient unit has one end being disposed on the base surface of the base and the other end being opposite to the base surface of the base and being engaged with the heat conduction block, so that the heat conduction block is disposed in the base and the heat conduction surface remains outside the base. At least one securing unit has at least one portion being secured to the heat conduction block securing holes respectively and at least another one of the other portions being disposed in the base securing holes respectively, the securing unit has a securing unit width along the direction of a normal line to the base surface of the base. The base securing hole length is greater than the securing unit width and the securing unit width is greater than or equal to the heat conduction block securing hole length, so that the heat conduction block is movable in the direction of a normal line to the heat conduction surface and at least one portion thereof is restricted within the base. 
         [0010]    Optionally, the dynamic heat conduction system comprises a heat conduction fluid disposed in the gap between the heat conduction side wall and the inner side wall of the base. Further, the heat conduction block has at least one groove on the heat conduction side wall for accommodating the heat conduction fluid. 
         [0011]    Still, the dynamic heat conduction system comprises a hole penetrating the heat conduction block and forming the at least two heat conduction block securing holes on the heat conduction side wall. 
         [0012]    In view of the purpose of the present invention, another dynamic heat conduction system is provided. The dynamic heat conduction system comprises a heat conduction board, a plurality of bases, a plurality of heat conduction blocks, a plurality of resilient units and a plurality of securing units. The heat conduction board covers a plurality of electronic components. The plurality of bases are disposed respectively on the heat conduction board at positions corresponding to the electronic components and respectively comprise a base surface and an inner side wall which defines at least two base securing holes having a base securing hole length along the direction of a normal line to the base surface. The plurality of heat conduction blocks are disposed respectively in the bases and respectively comprise a heat conduction side wall and a heat conduction surface, the heat conduction side walls respectively are opposite to the inner side wall of the bases and between the heat conduction side walls and the inner side wall of the bases respectively comprise a gap. The heat conduction side comprises at least two heat conduction block securing holes at positions respectively corresponding to those of the base securing holes, the heat conduction block securing holes respectively have a heat conduction block securing hole length along the direction of a normal line to the base surface of the bases. The plurality of resilient units are disposed respectively in the bases and respectively have one end being disposed on the base surface of the bases and the other end respectively being opposite to the base surface of the bases and are engaged with the heat conduction blocks, so that the heat conduction blocks are disposed respectively in the bases and the heat conduction surfaces remain outside the bases. The plurality of securing units are disposed respectively in the bases, respectively have at least one portion being secured to the heat conduction block securing holes and at least another portion being disposed in the base securing holes, and respectively have a securing unit width along the direction of a normal line to the base surface of the bases respectively. The base securing holes length are greater respectively than the securing units width and the securing units width are greater respectively than or equal to the heat conduction block securing holes length so that the heat conduction blocks are movable in the direction of a normal line to the heat conduction surface respectively and at least one portion thereof is restricted within the bases. 
         [0013]    Optionally, the dynamic heat conduction system comprises a heat conduction fluid disposed in the gap between the heat conduction side wall and the inner side wall of the base. Further optionally, the plurality of heat conduction blocks have at least one groove on the heat conduction side walls for accommodating the heat conduction fluid. 
         [0014]    Still, the plurality of heat conduction blocks have a hole penetrating the heat conduction blocks and forming the at least two heat conduction block securing holes on the heat conduction side wall. 
         [0015]    Further, for corresponding to the heights of the plurality of electronic components, the plurality of bases have different heights of bases respectively, the plurality of heat conduction blocks have different heights of heat conduction blocks respectively or the plurality of resilient units have different heights of unit or different resilient coefficients respectively. 
         [0016]    Further, for corresponding to a contact surface area of the plurality of electronic components, the plurality of heat conduction blocks have different heat conduction surface areas respectively or the plurality of resilient units have different resilient unit areas respectively. 
         [0017]    Further, the plurality of bases can be secured on the heat conduction boards with a post processing nickel and the heat conduction board. The bases can also be secured on the heat conduction boards with screws. 
         [0018]    According to the dynamic heat conduction system of the present invention, a buffering effect can be provided to avoid causing damage of the electronic components and the heat conduction system by external force and keeping the heat conduction system and the electronic components be contacted closely to achieve better heat conduction effect. In addition, according to the dynamic heat conduction system of the present invention, the heat conduction blocks can be provided to the plurality of electronic components respectively to achieve contacting closely and better heat conduction effect. The assembly process of the heat conduction unit and the plurality of electronic components can be simplified. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0019]      FIG. 1  is a heat conduction structure of the prior art. 
           [0020]      FIG. 2  is an exploded view of an exemplary embodiment according to the dynamic heat conduction system of the present invention. 
           [0021]      FIG. 3  is a top view of the embodiment shown in  FIG. 2 . 
           [0022]      FIG. 4  is a sectional view drawn along Line A-A as shown in  FIG. 3 . 
           [0023]      FIG. 5  is a top view of another embodiment according to the dynamic heat conduction system of the present invention. 
           [0024]      FIG. 6  is a sectional view drawn along Line B-B as shown in  FIG. 5 . 
           [0025]      FIG. 7  is a perspective view of another embodiment according to the dynamic heat conduction system of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0026]    The following text is described by exemplary embodiments of the present invention and with reference to the drawings. 
         [0027]    Please refer to  FIG. 2 , which is an exploded view of a dynamic heat conduction system  100  according to the present invention. A base  110 , a resilient unit  120 , a heat conduction block  130  and structures of securing units  140  are depicted. The base  110  comprises a base surface  111 , an inner side wall  112  and base securing holes  113  on the inner side wall  112 . One end of the resilient unit  120  is engaged with the base surface  111  of the base  110  and the other end of the resilient unit  120  is engaged with the heat conduction block  130 . The heat conduction block  130  comprises a heat conduction side wall  131 , a heat conduction surface  132 , heat conduction block securing holes  133  and a groove  134 . 
         [0028]    Please refer to  FIG. 3 , which is a top view of the dynamic heat conduction system  100  according to the present invention. The inner side wall  112  of the base  110  is opposite to the heat conduction side wall  131  of the heat conduction block  130  and a gap  114  is defined between the inner side wall  112  and the heat conduction side wall  131 . Although the dynamic heat conduction system  100  of the embodiment is circular in the top view, the heat conduction block and base of dynamic heat conduction system of the present invention in a top view can also be elliptical, rectangular, etc. or have different size of heat conduction surface areas or base shedding surface areas so as to adapt to different shapes or areas of the electronic components. Preferably, the resilient unit of the dynamic heat conduction system of the present invention can also has a different resilient unit area in the direction of a normal line to the heat conduction surface to fit using different shapes or areas of the electronic components. 
         [0029]    Please refer to  FIG. 4 , which is a sectional view drawn along line A-A shown in  FIG. 3 . A link relation of the various components after assembled in the dynamic heat conduction system  100  is depicted. One portion of the securing units  140  are secured to the heat conduction block securing holes  133 , another portion of the securing units  140  are disposed in the base securing holes  113  and the securing units  140  have a securing unit width L 1  along the direction of a normal line to the base surface  111 . The base securing holes  113  have a base securing hole length L 2  along the direction of a normal line to the base surface  111 . The heat conduction block securing holes  133  have a heat conduction block securing hole length L 3  along the direction of a normal line to the base surface  111 . The condition of L 2 &gt;L 1 ≧L 3  must be satisfied, so that at least one portion of the heat conduction block  130  is restricted within the base  110  by the securing unit  140  and the base securing holes  113  when the securing units  140  and the heat conduction block  130  are movable in the direction of a normal line to the base surface  111 . 
         [0030]    The heat conduction surface  132  of the heat conduction block  130  can be closely contacted to a electronic component, so that the heat generated by the electronic component via the heat conduction surface  132  pass through the heat conduction block  130 , the heat conduction side wall  131  and the inner side wall  112  of the base  110 , and to the base  110 . Preferably, an appropriate amount of heat conduction fluid which disposed in the gap  114  of dynamic heat conduction system  100  can optionally be provided, to increase the thermal conductivity between the heat conduction side wall  131  and the inner side wall  112  of the base  110 . The heat conduction fluid can be a heat conduction paste known for one skilled in the art. 
         [0031]    The groove  134  on the heat conduction side wall  131  can be used as a buffer space for a heat conduction fluid in the gap  114  when the present embodiment optionally provide the heat conduction fluid in the gap  114  of the dynamic heat conduction system  100 . The groove  134  accommodates excessive heat conduction fluid when the heat conduction fluid in the gap  114  is in excess. The heat conduction fluid accommodating in the groove  134  provides to the gap  114  when the heat conduction fluid in the gap  114  is insufficient. In this way, the dynamic heat conduction system  100  of the present application can maintain an appropriate amount of heat conduction fluid in the gap  114  so that it can keep better heat conduction effects between the heat conduction side wall  131  and the inner side wall  112  of the base  110 . Preferably, the dynamic heat conduction system of the present invention can optionally provide two or more grooves or a threaded groove on the heat conduction side wall to increase the cushioning effect for the heat conduction fluid. More preferably, the dynamic heat conduction system of the present invention can optionally not provide grooves on the heat conduction side wall to increase the contact area between the heat conduction side wall and the inner side wall of the base. 
         [0032]    Then another embodiment of the present invention is described. Please refer to  FIG. 5 , which is a top view of a dynamic heat conduction system  200  according to the present invention. A heat conduction block  230  and a base  210  are shown as rectangle in the top view. The heat conduction block and the base of the dynamic heat conduction system in the top view can also be, for example, oval, circular, etc. or heat conduction surface areas or the base shedding surface areas which have different sizes to conform to the use of electronic components which having different shapes or contact surface areas. Preferably, resilient units of the dynamic heat conduction system can also have a different resilient unit area along the direction of a normal line to the heat conduction surface to conform to the use of electronic components which have different shapes or areas. 
         [0033]    Please refer to  FIG. 6 , which is a sectional view drawn along line B-B as shown in  FIG. 4 . The heat conduction block  230  has a hole  233  penetrating the heat conduction block and forming two heat conduction block securing holes on the heat conduction side wall (Not shown). In the dynamic heat conduction system  200 , a single securing unit  240  penetrates the heat conduction block  230  and be secured in the hole  233 , and the both ends of securing unit  240  have at least one part be disposed in base securing holes  213  respectively. In addition, the securing unit  240  has a securing unit width L 1 ′ along the direction of a normal line to a base surface  211 ; the base securing holes  213  has a base securing hole length L 2 ′ along the direction of a normal line to the base surface  211 . The condition of L 2 ′&gt;L 1 ′ must be satisfied, so that at least one portion of the heat conduction block  230  is restricted within the base  210  by the securing unit  240  and the base securing holes  213  when the securing unit  240  and the heat conduction block  230  are movable in the direction of a normal line to the base surface  211 . The dynamic heat conduction system of the present invention can optionally use two securing units disposing respectively on two heat conduction block securing holes which on the heat conduction side wall to reach the effect that at least one portion is restricted within the base. 
         [0034]    The heat conduction surface  232  of the heat conduction block  230  can be closely contacted to a electronic component so that the heat generated by the electronic component via the heat conduction surface  232  passes through the heat conduction block  230 , a heat conduction side wall  231  and a inner side wall  212  of the base  210  and transfers to the base  210 . Preferably, the present invention can optionally provide an appropriate amount of heat conduction fluid which disposed in a gap  214  of dynamic heat conduction system  200  to increase the thermal conductivity between the heat conduction side wall  231  and the inner side wall  212  of the base  210 . The heat conduction fluid can be a heat conduction paste known in the skill field. 
         [0035]    The groove  234  on the heat conduction side wall  231  can be used as a buffer space for a heat conduction fluid in the gap  214  when the present embodiment optionally provide the heat conduction fluid in the gap  214  of the dynamic heat conduction system  200 . The groove  234  accommodates excessive heat conduction fluid when the heat conduction fluid in the gap  214  is in excess. The heat conduction fluid accommodating in the groove  234  provides to the gap  214  when the heat conduction fluid in the gap  214  is insufficient. In this way, the dynamic heat conduction system  200  of the present application can maintain an appropriate amount of heat conduction fluid in the gap  214  so that it can keep better heat conduction effects between the heat conduction side wall  231  and the inner side wall  212  of the base  210 . The dynamic heat conduction system of the present invention can optionally provide two or more grooves or a threaded groove on the heat conduction side wall to increase the cushioning effect for the heat conduction fluid. More preferably, the dynamic heat conduction system of the present invention can optionally not provide grooves on the heat conduction side wall, in order to increase the contact area between the heat conduction side wall and the inner side wall of the base. 
         [0036]    Please refer to  FIG. 7 , which is a perspective view of a dynamic heat conduction system  300  according to the present invention. The dynamic heat conduction system  100  as similar as shown in  FIGS. 2, 3 &amp; 4  and the dynamic heat conduction system  200  as shown in  FIGS. 5 &amp; 6  are disposed on the heat conduction board  310 . The dynamic heat conduction systems  100 ,  200  are used a welded way of post processing nickel securing on the heat conduction board. Preferably, the present invention can also uses others, screws, for example, to secure the dynamic heat conduction system on the heat conduction board. In the present embodiment, by the heat conduction block  130 ,  230  of the dynamic heat conduction system  100 ,  200  can be moving along the direction of a normal line to the base. The dynamic heat conduction system  300  can be more closely contacting with two electronic components with different heights and avoid causing the condition of electronic components damaged which under pressure at the time of assembly or under external force after the assembly. In addition, the heat conduction surface  132  and  232  of the heat conduction block  130  and  230  respectively have shapes of circular and rectangular and different heat conduction surface areas, the base  110  and  120  have different shedding surface areas and the resilient unit respectively have different resilient unit areas so that the dynamic heat conduction system  300  can closely contact the electronic components having different contact surface areas and shapes at the same time. The bases have different heights, and the heat conduction blocks have different heights and the resilient unit have different heights and different resilient coefficients, so that the dynamic heat conduction system  300  can closely contact the electronic components having different heights at the same time. The present invention can be previously disposed a plurality of fillisters on the heat conduction board for receiving a plurality of dynamic heat conduction systems in the heat conduction board to increase the contact area of the base with the heat conduction board of the dynamic heat conduction system to achieving better heat conduction effects. 
         [0037]    The present invention is not limited to providing two dynamic heat conduction systems on the heat conduction board. The one in the scope of the invention having the relevant art(s) can be learned that the invention can provide a single or a plurality of dissimilar dynamic heat conduction systems on the heat conduction board naturally by the contents of the invention disclosed. Preferably, the invention can provide the resilient units having different resilient coefficients or provide the dynamic heat conduction systems having different shapes, heights or areas which corresponding to electronic components with different heights, shapes or areas so that to achieve the purpose which having better heat conduction effects for a plurality of different electronic components at the same time, simplifying the complexity of manufacture and avoiding the electronic components damaged under external force in the assembly process or after the assembly. 
         [0038]    After a detailed description of the preferred embodiments of the present invention, one skilled in the relevant art(s) can clearly understand that it can process various changing and modifying without departing from the spirit and scope of the invention. Therefore, the present invention should not be limited by any of the above-described exemplary embodiments in the specification.