Patent Publication Number: US-2011063794-A1

Title: Computer with heat dissipation

Description:
BACKGROUND 
     1. Technical Field 
     The present disclosure relates to computers and, more particularly, to a smaller computer with a heat dissipation. 
     2. Description of Related Art 
     With the development of computer technology, electronic components such as central processing units (CPUs) have become progressively smaller, while at the same time their heat dissipation requirements have increased. Generally, heat dissipation devices are applied to the electronic components in order to facilitate dissipation of heat from the electronic components. 
     Nowadays, numerous kinds of heat dissipation devices have been developed for cooling the electronic components, for example, heat sinks or fans. Typically, a heat sink includes a base and a number of fins extending from a surface of the base, generally engaged with a fan adjacent to the fins. This kind of heat sink has a large volume and is popularly applied in a desktop computer because a typical enclosure of the desktop computer can provide enough space to accommodate the heat sink. 
     However, this heat sink is substantially unsuitable to be applied in a notebook computer due to a decreasingly limited space thereof. Specifically, due to marketing efforts and consumer preferences, designs for notebook computers tend to be increasingly thin and lightweight. For this heat sink to be accommodated in a notebook computer, there would have to be an undesirable increase in both the thickness and weight of the notebook computer. 
     Therefore, there is room for improvement in the art. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Many aspects of the embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the four views. 
         FIG. 1  is a schematic, isometric view of a computer including a heat dissipation, in accordance with an exemplary embodiment. 
         FIG. 2  is a schematic, cross-sectional view of the computer of  FIG. 1 . 
         FIG. 3  is a schematic, exploded view of the computer of  FIG. 2 . 
         FIG. 4  is a schematic, cross-sectional view of the computer of  FIG. 2 , with a first shielding member omitted. 
     
    
    
     DETAILED DESCRIPTION 
     Referring to  FIGS. 1 ,  2 , and  3 , a computer  100  according to an exemplary embodiment is illustrated. In this embodiment, the computer  100  is a notebook computer. The computer  100  includes a housing  10 , a heat dissipation module  20 , a circuit board  30 , a casing  40 , and a key module  50 . 
     The housing  10  includes a first shielding member  11  and a second shielding member  13  corresponding to the first shielding member  11 . The first shielding member  11  combines with the second shielding member  13  to define a receiving chamber  15 . The receiving chamber  15  is for receiving the heat dissipation module  20 , the circuit board  30 , and the casing  40 . The second shielding member  13  defines a plurality of through holes  130 , a plurality of fins  132 , and a blind recess  134 . The plurality of through holes  130  and the plurality of fins  132  are for facilitating dissipation of heat from the computer  100 . In this embodiment, the plurality of through holes  130  is positioned surrounding the heat dissipation module  20  for facilitating dissipation of heat transferred from the heat dissipation module  20 . 
     The key module  50  is mounted on the first shielding member  11 . The key module  50  is for generating different key signals. The circuit board  30  is received in the receiving chamber  15  and is set on the second shielding member  13 . The circuit board  30  is electrically connected to the key module  50  to receive the different key signals. 
     The casing  40  is for receiving the heat dissipation module  20 . The casing  40  includes a first wall  41  and a second wall  43 . The first wall  41  is approximately parallel with the second shielding member  13 . A through recess  410  is defined in the first wall  41 . The second wall  43  perpendicularly extends from the first wall  41 . The first wall  41 , the second wall  43 , and the second shielding member  13  cooperatively define a receiving recess  45 . The receiving recess  45  communicates with the through recess  410 . The heat dissipation module  20  is received in the recess  45  by passing through the through recess  410 . The second wall  43  defines an opening  432  to communicate the receiving recess  45  with the plurality of through holes  130  and the plurality of fins  132 , so as to facilitate dissipating heat from the computer  100  easily. The first wall  41  and the second wall  43  cooperatively define a channel  430 . 
     Further referring to  FIG. 4 , the heat dissipation module  20  is received in the receiving chamber  15  and is set on the second shielding member  13 . The heat dissipation module  20  includes a fan  22 , a motor  23 , a flexible printed circuit (FPC)  24 , and a radiating pipe  25 . 
     The FPC  24  is received in the blind recess  134  of the second shielding member  13  and electrically connects the motor  23  to the circuit board  30 . 
     The radiating pipe  25  is for facilitating dissipation of heat from the computer  100 . The radiating pipe  25  straddles the casing  40  by running through the channel  430 . The radiating pipe  25  includes an evaporator section  251  and a condenser section  252  connected to the evaporator section  251 . The condenser section  252  is received in the receiving recess  45  for facilitating dissipation of heat. The evaporator section  251  extends from the condenser section  252  and protrudes out of the receiving recess  45  for absorbing heat. In this embodiment, the condenser section  252  is disposed above the plurality of fins  132  to give off heat easily. In other embodiments, in order to improve exothermic function, the radiating pipe  25  may further include an adiabatic section connected between the evaporator section  251  and the condenser section  252 . 
     The fan  22  is received in the casing  40  through the through recess  410 . The fan  22  includes a plurality of fan blades  221 , a hollow rod  223 , and a connecting member  224 . The fan blades  221  radially extend from the rod  223 . The rod  223  is for driving the fan blades  221  to rotate. The connecting member  224  is for firmly fixing the fan blades  221  and preventing the fan blades  221  moving independent of the rod  223 . In other embodiments, the connecting member  224  can be omitted. In this embodiment, the height of the fan  22  is equal to that of the casing  40 . 
     The motor  23  is set on the second shielding member  13 , corresponds with the center of the receiving recess  45 , and protrudes into the rod  223  to support the fan  22 . The motor  23  includes a shaft  234 . The shaft  234  extends from the motor  23  to connect to the rod  223 . The shaft  234  is driven by the motor  23  to rotate the plurality of fan blades  221 . Thus, the fan  22  is driven by the motor  23  to dissipate heat. The motor  23  is electrically connected to the circuit board  30  by the FPC  24  received in the blind recess  134 , so that the motor  23  is powered by the circuit board  30 . The motor  23  is directly set on the second shielding member  13  to decrease the thickness of the computer  100 . In this embodiment, the motor  23  is directly adhered on the second shielding member  13  with glue. 
     As discussed above, the motor  23  is directly set on the second shielding member  13 , unnecessary members such as a base for the heat dissipation module  20  can be omitted, and the height of the casing  40  can be decreased. Thus, the thickness of the computer  100  is decreased. 
     In this embodiment, the computer  100  has different ways to dissipate heat without affecting the thickness of the computer  100 . 
     It is to be understood, however, that even though numerous embodiments have been described with reference to particular embodiments, but the present disclosure is not limited to the particular embodiments described and exemplified, and the embodiments are capable of considerable variation and modification without departure from the scope of the appended claims.