Patent Publication Number: US-2007110576-A1

Title: Blade wheel structure

Description:
FIELD OF THE INVENTION  
      The invention relates to a blade wheel structure, which is disposed on a cooling device and featured by dissipating heat and driving power at the same time to provide a more effective cooling structure.  
     BACKGROUND OF THE INVENTION  
      As shown in Appendix 1, Taiwan Patent Publication No. M252992 “Water-cooling system” is applied to a heating electronic component including a cooling foundation 1, a water pump 3, a first cooling base 4 and a second cooling base 5.  
      The mentioned parts are connected with a cycling pipeline 2 to form a closed loop for circulating low-temperature liquid. The water pump 3 is the power source driving the low-temperature liquid to circulate so that the low-temperature liquid continuously circulates through all parts to perform heat exchange.  
      Besides, the cooling foundation 1 is disposed on a heating electronic component. The first cooling base 4 and the second cooling base 5 are disposed two heat sinks (41, 51) and two cooling fans (42, 52) thereon respectively. The heat sinks (41, 51) absorb the heat from the first cooling base 4 and the second cooling base 5. The cooling fans (42, 52) assist to dissipate the heat absorbed by the heat sinks (41, 51) so as to achieve the circulating and cooling effect.  
      Whereas, such conventional water-cooling cooling system is barely in volume production and retailed simply because of the numerous parts, bulky size, high production cost and the most critical reason that fails to integrate the entire power.  
      The power owned the water-cooling system comes from the cooling fans (42, 52) and the water pump 3. The cooling fans (42, 52) are featured by assisting the heat sinks (41, 51) to dissipate heat while the water pump is featured by driving the low-temperature liquid, signifying that the functions of both parts are mutually independent.  
      Perhaps because the cooling fans 42 and 52 and the water pump 3 all have their independently-own power, it winds out with rather complicated and plentiful parts to integrate the water-cooling system, bulky size and relatively high production cost.  
      Consequently, if the power owned by the cooling fan and the water pump can be unified and simplified as a whole, the size of the water-cooling system can be further reduced, so can the production cost.  
     SUMMARY OF THE INVENTION  
      In view of this, the invention thus provides a blade wheel structure enabling to simultaneously dissipate heat and drive power, which simplifies the composition of the cooling module, reduces the entire size, saves production cost, and provides the more effective cooling effect.  
      The blade wheel structure includes a hub having a circular end face on the topside of the hub and there is a spindle vertically connected at a center beneath the circular end face. A circular sidewall extending downwardly from the circular end face is disposed a plurality of blades thereon. There is a permanent magnet disposed inside the sidewall. Permeable components are disposed on the circular portion of the hub.  
      When the driven element inside the cooled part is also disposed a magnet or a permeable component, the driven element is driven by means of the magnetic attraction and mutual traction so as to synchronously rotate along with the hub. Therefore, when the blade wheel rotates, on the one hand, the heat absorbed by the cooling part is rapidly dissipated, on the other hand, the power required to rotate the driven element is supplied at the same time so that the blade wheel is capable of dissipating heat and driving power simultaneously, attaining the goal of the power integration and resulting in a faster and better cooling effect. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       FIG. 1  is an exploded view showing the cooling fan;  
       FIG. 2  is an external schematic view showing the first-type blade wheel structure pattern;  
       FIG. 3  is an external schematic view showing the second-type blade wheel structure pattern;  
       FIG. 4  is an external schematic view showing the third-type blade wheel structure pattern;  
       FIG. 5  is an exploded schematic view showing the preferred embodiment of the present invention;  
       FIG. 6  is a cross-sectional schematic view showing the heat sink implemented in the present invention;  
       FIG. 7  is an exploded schematic view showing the water pump implemented in the present invention; and  
       FIG. 8  is a cross-sectional schematic view showing the water pump implemented in the present invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
      The invention relates to a blade wheel structure, which includes a hub having a circular portion on the top end face disposed magnets or permeable components. When the driven element inside the cooled part is also disposed magnets or permeable components, the driven element is driven by means of the magnetic attraction and mutual traction so as to synchronously rotate along with the hub. Hence, while the blade wheel is rotating, firstly, the heat of the cooled part is dissipated by the air flow driven the blades disposed on the outer periphery of the hub, secondly, the magnets or the permeable components disposed on the top end face of the hub synchronously drive and provide the power required to run the driven part, achieving the dual effects of the heat dissipation and the power driving.  
      Several preferred embodiments, together with figures, are listed below as examples illustrative of the relevant positions of the parts composing the present invention.  
      As shown in  FIG. 1 , the cooling fan  6  is composed of a frame  61 , a stator  62  and a blade wheel  63 , wherein the frame  61  has a shaft tube base therein supported by a plurality of ribs, the shaft tube base has the stator  62  disposed and fixed thereon, and the blade wheel is disposed to corresponds to the stator  62 .  
      Together with the reference to  FIG. 2 , the blade wheel contains a hub  64 . The hub  64  has a circular flat end face on the topside. The bottom portion of the flat end face is connected with a spindle  67  at the center. A sidewall is formed by extending downwardly from the outer perimeter of the flat end face. A plurality of blades  65  are disposed on the outer periphery of the sidewall and a permanent magnet  66  is disposed inside the inner periphery. The circular portion on the topside of the hub  64  is disposed a permeable component  641 . The permeable component  641  are a magnet or a metal with permeable characteristics, and the permeable component  641  and the hub  64  can be fastened by any one of the sticking means, the engaging means and the inserting means.  
      As shown in  FIG. 2 , the permeable component  641  includes magnets having at least two different polarities and taking a shape of a sector plate. The permeable component  641  is fixed on the hub  64  by the sticking means. Besides, the permeable component  641  can be a single-piece annular magnet having the magnetic poles with at least two polarities.  
      As shown in  FIG. 3 , the permeable component  642  is a single-piece annular permeable metal. The hub has a plurality of clips  643  disposed on circular portion of the topside of the hub  64  so as to fasten the permeable components  642  on the hub  64 .  
      As shown in  FIG. 4 , the hub  64  has at least two positioning slots  645  located on the circular portion of the topside of the hub  64 . The positioning slot  645  allows the permeable component  644  to be inserted in the positioning slot and fastened on the hub  64 .  
      Moreover,  FIG. 5  and  FIG. 6  illustrate the preferred embodiment of the heat sink applied in the present invention.  
      The heat sink  21  includes a central heat conducting body  22 . A plurality of cooling fins  23  extending outwardly from the periphery on the central heat conducting body  22 . The central heat conducting body  22  has a through-hole penetrating one side thereof. The opening of the through-hole is enclosed by a cover plate  24  so as to form a fully-sealed hollow chamber  221 . The chamber is filled with a cooling liquid and is disposed an agitator  25  therein. The agitator  25  has a permeable component  251  corresponding to a permeable component  641  disposed thereon. The two permeable components  251 ,  641  have the magnetic attraction and mutual traction therebetween so that the agitator  25  can synchronously rotate along with the hub  64 .  
      During implementation, the heat sink  21  directly contacts with the heating element to absorb the heat thereof. The cooling fan  6  is disposed on the heat sink  21  to dissipate the heat thereof. As such, when the blade wheel rotates, the blades on the outer periphery of the hub  64  drive the airflow to dissipate the heat of the cooling fins  23  on the heat sink  21 . Meanwhile, the permeable component  641  on the hub  64  pulls the agitator  25  to provide the power required for the agitator  25  and the hub  64  to synchronously rotate so as to agitate the cooling liquid filled in the chamber  221 , attaining the dual effects inclusive of heat dissipation and power driving.  
       FIG. 7  and  FIG. 8  illustrate the preferred embodiment of water pump applied in the present invention.  
      The topside of the water pump  31  is covered by a cover plate  31  so as to enclose an inner space  311 . The inner space  311  is connected with an inlet tube  312  and an outlet tube  313  respectively. The water pump  31  has a plurality of cooling fins  33  extending from the outer periphery thereof, and an active gear  34  is housed in the inner space  311 . The active gear  34  is disposed a permeable component  341  corresponding to the permeable component  641  disposed on the hub so that the magnetic attraction and mutual traction exist between the two permeable components, allowing to synchronously rotate the active gear  34  and the hub  64 .  
      During implementation, the water pump  31  drives the cooling liquid to flow. The cooling fan  6  is disposed on the water pump  31  to assist the heat dissipation thereof. As a result, when the blade wheel  63  rotates, the blades on the outer periphery of the hub  64  drive the airflow to dissipate the heat of the cooling fins on the hub  64 . Using the permeable components  641  on the hub  64  to draw the active gear  34  and providing the active gear  34  the power for synchronously rotating along with the hub  64  to drive the cooling liquid for circulation, the dual effects for dissipating heat and driving power are attained.  
      In sum, the blade wheel of the present invention, attributable to the characteristics of the magnetic attraction and the mutual traction, drives the driven element inside the cooled part to synchronously rotate along with the hub. Hence, when the blade wheel rotates, on the one hand, the blades disposed on the outer periphery of the hub drive the airflow to dissipate the heat of the cooled part, on the other hand, the magnets or permeable components disposed on the top end face of the hub synchronously draw the driven element and provide the required power to rotate the driven element so as to enable the blade wheel to have dual effects in dissipating heat and driving power, achieving the goal of the power integration and the faster and better heat dissipation effect. Therefore, the present invention not only has a novelty and a progressiveness, but also has an industry utility.  
      While the invention has been described in terms of what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention needs not be limited to the disclosed embodiments. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims, which are to be accorded with the broadest interpretation so as to encompass all such modifications and similar structures.