Abstract:
An electronic device can conveniently change and assemble a heat dissipation apparatus which is received in the electronic device and dissipates heat for the electronic device. The electronic device with a fan heat dissipation apparatus can be replaced by a blower heat dissipation apparatus, without changing a chassis of the electronic device.

Description:
BACKGROUND 
     1. Technical Field 
     The present disclosure relates to electronic devices, and particularly to an electronic device for conveniently changing and assembling a heat dissipation apparatus. 
     2. Description of Related Art 
     Heat dissipation apparatuses using fans or blowers mounted to electronic devices are generally designed to have different structures. However, if an electronic device with a fan heat dissipation apparatus is replaced by a blower heat dissipation apparatus, a chassis of the electronic device may also need to be changed, thereby bringing inevitably cost increase. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is an exploded, isometric view of a first exemplary embodiment of an electronic device. 
         FIG. 2  is a partially assembled, isometric view of the electronic device of  FIG. 1 . 
         FIG. 3  is a cross-sectional view of  FIG. 2 , taken along the line III-III. 
         FIG. 4  is an assembled, isometric view of  FIG. 2 . 
         FIG. 5  is a partially assembled, isometric view of the electronic device of  FIG. 1 , but viewed from another aspect. 
         FIG. 6  is an assembled, isometric view of  FIG. 5 . 
         FIG. 7  is a circuit diagram showing a second connector connected to a third connector of a control board of  FIG. 1 . 
         FIG. 8  is an exploded, isometric view of a second exemplary embodiment of a heat dissipation apparatus of an electronic device. 
         FIG. 9  is an assembled, isometric view of  FIG. 8 . 
         FIG. 10  is an assembled, isometric view of the heat dissipation apparatus and a motherboard of the electronic device of  FIG. 8 . 
         FIG. 11  is an exploded, isometric view of the electronic device of the second exemplary embodiment. 
         FIG. 12  is a circuit diagram showing a second connector connected to a third connector of a control board of  FIG. 8 . 
     
    
    
     DETAILED DESCRIPTION 
     Referring to  FIGS. 1 to 7 , a first exemplary embodiment of an electronic device includes a chassis  1 , a motherboard  2  received in the chassis  1 , and a heat dissipation apparatus  3  mounted to the motherboard  2 . In one embodiment, the electronic device may be a storage bridge bay (SBB) power supply system. 
     The chassis  1  includes a cover  12 , a base  14 , and a fixing member  16 . A mounting hole  162  is defined in a center of the fixing member  16 . Two tabs  164  extend in the same direction from opposite ends of the fixing member  16 . Each tab  164  defines two fixing holes  166 . Two through holes  122  are defined in the cover  12 , and two through holes  142  are defined in the base  14  corresponding to the fixing holes  166 . 
     The motherboard  2  is mounted to the base  14  of the chassis  1  via screws (not shown). The motherboard  2  includes a first connector  22  and other components, such as a central processing unit (CPU), south and/or north bridge chips. 
     The heat dissipation apparatus  3  includes a plurality of heat dissipation components, such as two blowers  4 , a control board  5 , a receiving member  62  for receiving the blowers  4  and the control board  5 , a connection member  61 , and an elastic member, such as a helical spring  63 . Each blower  4  vertically defines two through holes  46  in opposite sidewalls of the blower  4 . 
     The control board  5  includes a second connector  52  and two third connectors  54 . The control board  5  defines two through holes  56  in opposite ends of the control board  5 . The second connector  52  can be engaged with the first connector  22  of the motherboard  2 , and the two third connectors  54  are connected to the second connector  52 . The first connector  22  and the second connector  52  each include five pins 1-5 arranged at a top row and five pins 6-10 arranged at a bottom row respectively. Names of the pins 1-5 of the top row and the pins 10-6 of the bottom row from left to right of each of the first connector  22  and the second connector  52  are shown in table 1. 
                                                                               TABLE 1               pins of the first connector and the second connector                   First connector            Top row   1   2   3   4   5               Name   rotary    rotary    rotary    rotary    power           speed   speed   speed   speed   supply               Bottom row   10   9   8   7   6               Name   speed   speed   speed   speed   ground           regulation   regulation   regulation   regulation                    Second connector            Top row   1   2   3   4   5               Name   power   rotary    rotary    —   —           supply   speed   speed               Bottom row   10   9   8   7   6               Name   ground   speed   speed   —   —               regulation   regulation                    
Each column of two pins in table 1 as a group, such as the “rotary speed” pin 2 and the “speed regulation” pin 9, control a blower  4 . When the second connector  52  is inserted into the first connector  22 , the power supply pin 1, the rotary speed pins 2 and 3, and the speed regulation pins 8 and 9 of the second connector  52  are correspondingly connected to the power supply pin 5, the rotary speed pins 4 and 3, and the speed regulation pins 7 and 8 of the first connector  22 .
 
     Each third connector  54  includes a row of four pins 1-4, and names of the pins 1-4 from left to right are shown in table 2. 
     
       
         
               
             
               
               
               
               
               
               
             
           
               
                 TABLE 2 
               
             
             
               
                   
               
               
                 pins of the third connector 
               
             
          
           
               
                   
                 Pin 
                 1 
                 2 
                 3 
                 4 
               
               
                   
                   
               
               
                   
                 Name 
                 ground 
                 rotary speed 
                 speed 
                 power supply 
               
               
                   
                   
                   
                   
                 regulation 
               
               
                   
                   
               
             
          
         
       
     
     The first connector  22  outputs a power signal and a plurality of control signals from the motherboard  2 , and receives a plurality of state signals from the blowers  4 . The control signals are speed regulation signals, to control rotary speeds of the blowers  4 , and the state signals are rotary speed signals of the blowers  4 . After the second connector  52  is inserted into the first connector  22 , the two third connectors  54  receive the power signal and the speed regulation signals output from the second connector  52 , and output the rotary speed signals to the motherboard  2  via the first connector  22  and the second connector  52 . Each power supply pin 4 of the third connectors  54  is connected to the power supply pin 1 of the second connector  52 . Each ground pin 1 of the third connectors  54  is connected to the ground pin 10 of the second connector  52 . The rotary speed pin 2 and the speed regulation pin 3 of one third connector  54  are connected to the rotary speed pin 2 and the speed regulation pin 9 of the second connector  52  respectively. The rotary speed pin 2 and the speed regulation pin 3 of the other third connector  54  are connected to the rotary speed pin 3 and the speed regulation pin 8 of the second connector  52  respectively. 
     The connection member  61  includes a column-shaped main body  612  and a head  614  connected to a first end of the main body  612 . A diameter of the head  614  is greater than a diameter of the main body  612 . A ring-shaped protrusion  6122  protrudes from a circumference of the main body  612 . 
     The receiving member  62  is box-shaped, and includes a first sidewall  621 , a top wall  622 , a second sidewall  623  opposite to the first sidewall  621 , and a bottom wall  624  opposite to the top wall  622 . The first sidewall  621 , the top wall  622 , the second sidewall  623  and the bottom wall  624  are connected end to end, bounding an opening  625 . A third sidewall  626  connected to the first sidewall  621 , the top wall  622 , the second sidewall  623 , and the bottom wall  624  is opposite to the opening  625  as shown in  FIG. 5 . An engaging portion  6212  defining a first hole  6214  vertically extends from the first sidewall  621  towards the second sidewall  623 , adjacent to the opening  625 . A second hole  6262  is defined in the third sidewall  626 , corresponding to the first hole  6214 . A plurality of ventilation holes  6264  are defined in the third sidewall  626 , for the blowers  4  guiding heat outside of the receiving member  62 . A board  627  extends from the bottom wall  624 , opposite to the third sidewall  626 . Two fastening holes  6272  are defined in the board  627 , corresponding to the through holes  56  of the control board  5 , to mount the control board  5  to the motherboard  2  via some connection members, such as screws. Four assembly holes  6242  are defined in the bottom wall  624 , corresponding to the through holes  46  of the two blowers  4 . 
     In assembly, the spring  63  fits about the main body  612  of the connection member  61 . A second end opposite to the head  614  of the main body  612  of the connection member  61  passes through the second hole  6262  of the third sidewall  626 , the first hole  6214  of the engaging portion  6212  of the receiving member  62 , with the head  614  of the connection member  61  fixed to the third sidewall  626 , and the spring  63  sandwiched between the engaging portion  6212  and the protrusion  6122  of the connection member  61 . Four screws  42  pass through the through holes  46  of the blowers  4 , to lock into the assembly holes  6242  of the receiving member  62 , to mount the blowers  4  to the receiving member  62 . Two screws  58  pass through the through holes  56  of the control board  5  and lock into the fastening holes  6272  of the receiving member  62 , to mount the control board  5  to the board  627  of the receiving member  62 . The blowers  4  are electrically connected to the third connectors  54 , respectively, to communicate with the control board  5 . 
     The fixing member  16  is placed on the base  14 , with the fixing holes  166  of one tab  164  aligning with the corresponding through holes  142  of the base  14 . The cover  12  covers on the base  14 , with the through holes  122  of the cover  12  aligning with the fixing holes  166  of the other tab  164 . Screws  124  pass through the through holes  122  of each of the cover  12  and the base  14  and lock into the fixing holes  166  of a corresponding tab  164  of the fixing member  16 , to mount the cover  12  to the base  14 , to form the chassis  1  with an opening  18  defined in one end of the chassis  1 . The heat dissipation apparatus  3  is received in the chassis  1  through the opening  18 , the second end of the connection member  61  is locked into the mounting hole  162  of the fixing member  16 , to mount the heat dissipation apparatus  3  to the chassis  1 , the second connector  52  being inserted into the first connector  22 . 
     In use, the first connector  22  of the motherboard  2  outputs a power supply signal and two speed regulation signals to the second connector  52 . The two third connectors  54  output two speed regulation signals to the two blowers  4 , respectively, to dissipate heat generated by the motherboard  2 . The two blowers  4  output rotary speed signals to the motherboard  2  via the third connector  54 , the second connector  52 , and the first connector  22 , therefore the motherboard  2  can monitor the rotary speeds of the two blowers  4 . 
     Referring to  FIGS. 8 to 12 , a second embodiment of an electronic device with another heat dissipation apparatus  10  is shown. A difference between the heat dissipation apparatuses  10  and  3  is as follows. The heat dissipation apparatus  10  includes four groups of fans including eight fans  7 , a receiving member  9  for receiving the eight fans  7 , and a control board  8 . The control board  8  includes a second connector  86  for connecting to the first connector  22  of the motherboard  2 , and four third connectors  82  electrically connected to the second connector  86 . Four locking holes  74  are defined in four corners of each fan  7 . Screws (not shown) pass through the locking holes  74  of two fans  7 , with the two fans  7  resisting against each other, to mount the two fans  7  in series together. The two fans  7  are electrically connected in series, and electrically connected to one of the third connector  82 . The receiving member  9  is box-shaped and defines an opening in one side. A plurality of through holes  92  are defined in a sidewall opposite to the opening of the receiving member  9 , for mounting the fans  7 . The connection member  61  passes through the sidewall, fits about the spring  63 , to mount the heat dissipation apparatus  10  to the chassis  1 , with the connection member  61  locked into the mounting hole  162  of the fixing member  16 . 
     Structures and names of pins of the first connector  22  and the third connector  82  are the same as structures and names of the pins of the first exemplary of the first connector  22  and the third connector  54 . Structure of the second connector  86  is the same as structure of the first exemplary of the second connector  52 , and names of the pins 1-5, 10-6 of the second connector  86  from left to right are shown in table 3. 
                                               TABLE 3               pins of the second connector                                Top row   1   2   3   4   5               Name   power   rotary    rotary    rotary    rotary speed           supply   speed   speed   speed               Bottom row   10   9   8   7   6               Name   ground   speed   speed   speed   speed               regulation   regulation   regulation   regulation                    
Each column of two pins in table 3 as a group, such as the “rotary speed” pin 2 and the “speed regulation” pin 9, control two fans  7  in series. Obviously, the second connector  86  can be inserted into the first connector  22 , therefore the power supply signal pin 1, rotary speed signal pins 2-5, and speed regulation signal pins 6-9 of the second connector  86  are correspondingly connected to the power supply signal, rotary speed signal pins, and speed regulation signal pins of the first connector  22 .
 
     The third connector  22  receives a power signal, speed regulation signals from the motherboard  2  and outputs rotary speed signals to the motherboard  2  via the second connector  86  and the first connector  22 . The power supply pins of the four third connectors  82  are connected to the power supply pin 1 of the second connector  86 . Ground pins of the four third connectors  82  are connected to the ground pin 10 of the second connector  86 . A rotary speed pin 2 and a speed regulation pin 3 of a first one of the third connectors  82  are connected to the rotary speed pin 2 and the speed regulation pin 9 of the second connector  86 . A rotary speed pin 2 and a speed regulation pin 3 of a second one of the third connectors  82  are connected to the rotary speed pin 3 and the speed regulation pin 8 of the second connector  86 . A rotary speed pin 2 and a speed regulation pin 3 of a third one of the third connector  82  are connected to the rotary speed pin 4 and the speed regulation pin 7 of the second connector  86 . A rotary speed pin 2 and a speed regulation pin 3 of a fourth one of the third connector  82  are connected to the rotary speed pin 5 and the speed regulation pin 6 of the second connector  86 . 
     In use, the motherboard  2  outputs a power supply signal and four speed regulation signals via the first connector  22 , the second connector  86 , and the third connectors  82 . Four groups of the fans  7  receive the power supply signal and the speed regulation signals respectively, and the four groups of fans  7  output rotary speed signals to the motherboard  2 . 
     When the heat dissipation apparatus  3  with blowers  4  is replaced by the heat dissipation apparatus  10  with fans  7 , the chassis  1  of the electronic device need not be altered, which can reduce cost and is conveniently to be used. 
     It is to be understood, however, that even though numerous characteristics and advantages of the embodiments have been set forth in the foregoing description, together with details of the structure and function of the embodiments, the disclosure is illustrative only, and changes may be made in details, especially in matters of shape, size, and arrangement of parts within the principles of the embodiments to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.