Abstract:
A drawer received in an electronic device includes a drawer assembly and a locking assembly. The drawer assembly is detachable attached to the electronic device and can be used as a carrying case for components of the electronic device. The locking assembly includes a rotatable key set on the drawer assembly, a rod operable to fix or release the drawer assembly from the electronic device, and a moveable member movably connected between the rotatable key and the rod. The moveable member is driven by the rotatable key to drive the rod to fix or release the drawer assembly from the electronic device.

Description:
BACKGROUND 
     1. Technical Field 
     The present disclosure relates to electronic devices, and particularly to an electronic device with a drawer. 
     2. Description of Related Art 
     A hard disk drive (HDD) is an important component of a computer. For protecting the HDD, the HDD is normally installed inside a host computer. As such, if the HDD needs to be replaced or repaired, the host must be disassembled, which is inconvenient. 
     Therefore, there is room for improvement in the art. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The components of the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the embodiment of an electronic device with a drawer. Moreover, in the drawings, like reference numerals designate corresponding parts throughout several views. 
         FIG. 1  is an isometric, schematic view of an electronic device having a locking assembly, according to an exemplary embodiment, the locking assembly includes a rotatable key. 
         FIG. 2  is a partially exploded view of the electronic device of  FIG. 1 . 
         FIG. 3  is an enlarged view of the rotatable key of the electronic device of  FIG. 2 . 
         FIG. 4  is a partially isometric, schematic view of the electronic device of  FIG. 1 . 
         FIG. 5  is a partially, schematic view of the electronic device of  FIG. 1  in a closed state. 
         FIG. 6  is a partially, schematic view of the electronic device of  FIG. 1  in another closed state. 
     
    
    
     DETAILED DESCRIPTION 
     Embodiments of the present disclosure will now be described in detail with reference to the drawings. 
     Referring to  FIGS. 1 and 2 , an electronic device  100  according to an exemplary embodiment is illustrated. The electronic device  100  includes a housing  10 , a drawer  20  received in the housing  10 , and a component  30  carried by the drawer  20 . In this embodiment, the component  30  is a hard disk drive (HDD), and the electronic device  100  is a notebook computer. In other embodiments, the component  30  can be a battery, a CD/DVD drive, or other components, and the electronic device  100  can be a desktop computer, a DVD player, or other electronic devices. 
     The component  30  includes an interface portion  31 . The interface portion  31  is used for electrically connecting the component  30  to a circuit board (not shown) of the electronic device  100 . A plurality of limiting holes  33  is defined on opposite sides of the component  30  next to the interface portion  31 . 
     The housing  10  includes a top wall  11 , a bottom wall  13 , and a side wall  15  connecting the top wall  11  to the bottom wall  13 . The top wall  11 , the bottom wall  13 , and the side wall  15  cooperate to define a receiving room  17 . An opening  150  is defined in the side wall  15 . The opening  150  is used for receiving for the drawer  20  to move in and out of the housing  10 . 
     The drawer  20  includes a drawer assembly  21 , a guiding assembly  23 , and a locking assembly  27 . 
     The drawer assembly  21  is received in the receiving room  17  and is used for carrying the component  30 . The drawer assembly  21  is configured to move in and out of the housing  10  via the opening  150 . The drawer assembly  21  includes a first limiting portion  151 , a second limiting portion  153  opposite to the first limiting portion  151 , a first slider  211 , a second slider  212  substantially parallel to the first slider  211 , and a face plate  213  perpendicularly connected to the first slider  211  and the second slider  212 . One end of the face plate  213  is connected to the first slider  211 , and the other end of the face plate  213  is connected to the second slider  212 . The two limiting portions  151  and  153  are set on the inside surface of the side wall  15 . Each of the limiting portions  151  and  153  defines a first through hole  1510 . The opening  150  is between the two limiting portions  151  and  153 . The first slider  211  and the second slider  212  define two second through holes  2112  corresponding to the first through holes  1510 . 
     The two sliders  211  and  212 , and the face plate  213  cooperate to define a receiving space  214 . The receiving space  214  is used for receiving the component  30 . A plurality of limiting poles  2110  is set on inner sides of the first slider  211  and the second slider  212 . The limiting poles  2110  corresponds to the limiting holes  33  of the component  30 . The drawer assembly  21  via the limiting poles  2110  is inserted into the corresponding limiting holes  33 . When the component  30  is carried out, the interface portion  31  is away from the face plate  213 , and electrically connects with the circuit board of the electronic device  100 . The face plate  213  is received in the opening  150 , and allows convenient manipulation by users for moving the drawer assembly  21  in and out of the receiving room  17 . 
     In other embodiments, the drawer assembly  21  can be other structures as long as the drawer assembly  21  can carry the component  30 . For example, the assembly  21  can further include a bottom plate perpendicularly connected to the two sliders  211  and  212 , and the face plate  213 . The receiving space  214 , used for receiving the component  30 , is defined in the bottom plate, the two sliders  211  and  212 , and the face plate  213 . 
     The face plate  213  is substantially rectangular and is configured to cover the opening  150 . A first receiving hole  2130  is defined in the middle of the face plate  213 . In this embodiment, the first receiving hole  2130  is substantially round. A limiting member  210  and two protrusions  2132  are set on the same side of the face plate  213  opposing the two sliders  211  and  212 . The limiting member  210  is substantially bridge-shaped and located above the first receiving hole  2130 . The limiting member  210  defines a second receiving hole  2100 . The second receiving hole  2100  is substantially elliptic and corresponds to the first receiving hole  2130 . One of the protrusions  2132  is set between the first slider  211  and the limiting member  210 , and the other one is set between the second slider  212  and the limiting member  210 . 
     The guiding assembly  23  is used for supporting the drawer assembly  21  and guiding the drawer assembly  21  to slide in and out of the receiving room  17 . The guiding assembly  23  includes four guiding members  230 . Each guiding member  230  includes a first fixing portion  231 , a second fixing portion  233  substantially parallel to the first fixing portion  231 , and a connecting portion  235  connecting the two fixing portions  231  and  233  and are configured to define a guiding groove  237 . 
     The first fixing portion  231  is set on the bottom wall  13  and faces the top wall  11 . The guiding groove  237  is used for receiving one of the two sliders  211  and  212 . The guiding assembly  23  has four guiding members  230 , four guiding grooves  237  are defined accordingly. Two of the four guiding grooves  237  receive the first slider  211 , and the other two grooves  237  receive the second slider  212 . Thus, the drawer assembly  21  is slid along the guiding assembly  23  and in the four grooves  237  and against the connecting portion  235 . In this embodiment, the two fixing portions  231  and  233 , and the connecting portion  235  are substantially cylindrical. The cylindrical connecting portion  235  gives a low friction force to the sliding drawer assembly  21 . In other embodiments, the two fixing portions  231  and  233  can be other shapes. 
     In the embodiment, screws can be engaged with the guiding assembly  23  and the bottom wall  13 , thus, the guiding assembly  23  is fixed on the bottom wall  13 . The guiding assembly  23  can also be fixed on the bottom wall  13  by means of any suitable adhesive. 
     In other embodiments, the number of the guiding members  230  can be more than four, and the guiding assembly  23  can be another structure as long as the guiding assembly  23  can guide the drawer assembly  21  to slide in and out of the receiving room  17 . For example, the guiding assembly  23  can have two opposite grooves, one of the two grooves receives the fixing slider  211 , and the other one receives the second slider  212 . 
     To keep the drawer assembly  21  from disengaging out of the receiving room  17  of the housing  10 , the locking assembly  27  is used for locking the drawer assembly  21  to the housing  10 . The locking assembly  27  includes a rotatable key  271 , an elastic member  270 , two moveable members  273 , and two rods  277 . 
     The elastic member  270  is a spring. In other embodiments, the elastic member  270  can be a ring made of elastic material, such as rubber. 
     The two moveable members  273  have the same structure. Each of the two moveable members  273  defines two holes  2731 . 
     Referring to  FIGS. 2 and 3 , the rotatable key  271  includes a keycap  2710 , a first fixing member  2712 , and two second fixing members  2714  extending from the same side of the keycap  2710 . The keycap  2710  is received in the first receiving hole  2130  of the face plate  213 , and can be rotated by an external force. In this embodiment, the out surface of the keycap  2710  is a rough texture for being rotated easily. The rough out surface of the keycap  2710  is formed by setting several embossed strips thereon. Of course, the rough out surface of the keycap  2710  can be formed by defining several recesses thereon. 
     One end of the first fixing member  2712  connected to the keycap  2710  is substantially round, and the other end of the first fixing member  2712  away from the keycap  2710  is substantially elliptic. The first fixing member  2712  extends through the second receiving hole  2100  of the limiting member  210  to be received in the second receiving hole  2100 . The elastic member  270  sleeves on the round end of the first fixing member  2712  and is positioned between the keycap  2710  and the limiting member  210 . The elliptic end of the first fixing member  2712  is free. The radius of the round end is smaller than the semi minor axis of the elliptic end. 
     The two second fixing members  2714  are symmetrical about the first fixing member  2712 . Ends of the two second fixing members  2714  are set on the keycap  2710 , the other ends are free. The two second fixing members  2714  extend through the corresponding holes  2731 . In this embodiment, the two second fixing members  2714  are bolts which are engaged with the keycap  2710 , thus, the two moveable members  273  are fixed to each corresponding second fixing member  2714  by bolts and cannot be moved away from the corresponding second fixing members  2714 . 
     Further referring to  FIG. 4 , the two rods  277  have the same structure. Ends of the two rods  277  are received in the corresponding first through holes  1510  after passing through the second corresponding through holes  2112 . The other ends of the two rods  277  are substantially perpendicular to the shafts of the two rods  277 , respectively, and are received in the corresponding holes  2731 . Thus, the two moveable members  273  connect the two rods  277  and  279  to the rotatable key  271 . 
     When the keycap  2710  is pressed, the keycap  2710  drives the first fixing member  2712  to further extend through the second receiving hole  2100  of the limiting member  210 , thus the elastic member  270  is deformed. The free end of the first fixing member  2712  protrudes out of the second receiving hole  2100 . Then when the keycap  2710  is rotated, the first fixing member  2712  is driven by the keycap  2710  to rotate until the elliptic end of the keycap  2710  is fastened with the limiting member  210 . As such, even if the pressure on the keycap  2710  is released, the first fixing member  2712  is still fastened with the limiting member  210  because of the elliptic end. The free end of the first fixing member  2712  will be received in the second receiving hole  2100  again until the keycap  2710  is rotated back. When the keycap  2710  is rotated back, the elastic member  270  is reset and drives the keycap  2710  to be reset. 
     When the keycap  2710  is pressed and rotated, the keycap  2710  drives the two moveable members  273  to rotate about the centre of the second fixing members  2714 . The two moveable members  273  push or pull the rods  277  to further extend through or withdraw from the first through holes  1510 . When the two rods  277  pass through the first through holes  1510 , the locking assembly  27  locks the drawer assembly  21  in the receiving room  17  (see  FIG. 5 ). When the two rods  277  withdraw from the first corresponding through holes  1510 , the locking assembly  27  unlocks the drawer assembly  21  from the housing  10  (see  FIG. 6 ). 
     In this embodiment, each of the two protrusions  2132  of the face plate  213  are above or below but near the two rods  277 , respectively, to balance a force exerted by the two moveable members  273  when the keycap  2710  is rotated. 
     In other embodiments, one of the two moveable members  273 , and one of the two corresponding rods  277  can be removed. Thus, the locking assembly  27  only uses one moveable member  273  and one corresponding rod  277  to lock and unlock. 
     As described above, when the locking assembly  27  locks the drawer assembly  21 , carrying the component  30 , within the receiving room  17  of the housing  10 . The component  30  is enclosed for protection. When the drawer assembly  21  is unlocked with the locking assembly  27 , the component  30  can be carried, from the housing  10 . The component  30  can be move out of the drawer assembly  21 . Thus, it is easy for users to remove or replace the component  30 . 
     While various exemplary and preferred embodiments have been described, it is to be understood that the disclosure is not limited thereto. To the contrary, various modifications and similar arrangements (as would be apparent to those skilled in the art) are intended to also be covered. Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.