Abstract:
A retention assembly for securing a optical disc drive (ODD) to a main frame of an electronic device includes a bracket and a connector. The bracket is fixed to the ODD. One of the main frame and the bracket defines a guide groove, and the other includes a slide rail movably received in the guide groove. The connector is fixed to the main frame and adjacent to the guide groove or the slide rail. The ODD is aligned to electrically connect to the connector by the at least one guide groove or the at least one slide rail.

Description:
BACKGROUND 
       [0001]    1. Technical Field 
         [0002]    The present disclosure relates in general to retention assemblies, and particularly, to a retention assembly for an optical disc drive and an electronic device utilizing the retention assembly. 
         [0003]    2. Description of Related Art 
         [0004]    Electronic devices, such as desktop computers, or servers, often include optical disc drives (ODD), such as CD-ROM, and DVD-ROM to increase the functionality of the electronic device as desired. 
         [0005]    A typical electronic device includes a main frame and an ODD secured on the main frame via a plurality of fasteners, and the ODD is electrically connected to other electronic components, such as a motherboard, via cables. However, it is often unduly time-consuming and laborious to replace the ODD, because the cables connected to the ODD must be unplugged and reconnected. 
         [0006]    Therefore, there is room for improvement within the art. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0007]    The components in the drawings are not necessarily drawn to scale, the emphasis instead placed upon clearly illustrating the principles of the present disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the views. 
           [0008]      FIG. 1  is an isometric view of an embodiment of an electronic device including a host. 
           [0009]      FIG. 2  is a partial, exploded, isometric view of the host of  FIG. 1 , the host including a retention assembly. 
           [0010]      FIG. 3  is another partial, exploded, isometric view of the host of  FIG. 2 . 
           [0011]      FIG. 4  is similar to  FIG. 3 , but viewed from another aspect. 
       
    
    
     DETAILED DESCRIPTION 
       [0012]    Referring to  FIG. 1 , an embodiment of the electronic device  100  includes a host  10 , and a supporting mechanism  11  supporting the host  10 . In the illustrated embodiment, the electronic device  100  is an all-in-one computer. 
         [0013]    Referring to  FIG. 2 , the host  10  includes a main frame  20 , an ODD  30 , a retention assembly  40 , a display device  70 , and a housing  80 . 
         [0014]    The main frame  20  is substantially a flat plate on a side of which the ODD  30  and the retention assembly  40  are disposed. The electronic device  100  further includes a motherboard (not shown) fixed to the side of the main frame  20  and electrically connected to the ODD  30  via some cables (not shown). 
         [0015]    Referring to  FIGS. 3 and 4 , the main frame  20  includes a substantially rectangular base plate  21 , and four bent portions  23  extending outwards from four sides of the base plate  21 . The base plate  21  includes two substantially parallel slide rails  211  located on a side thereof. In the illustrated embodiment, the two slide rails  211  are L-shaped and extend outwards from the side of the base plate  21  and are opposite to each other. One of the bent portions  23  defines a substantially rectangular mounting hole  231  through which the ODD  30  passes. The base plate  21  further forms two elastic positioning protrusions  213  adjacent to the mounting hole  231 . 
         [0016]    The ODD  30  includes a substantially rectangular main body  31  and a supporting plate  33  extending from an upper side of the main body  31 . A thickness of the supporting plate  33  is less than that of the main body  31 . The main body  31  defines two pairs of fixing holes  35  on the upper side and a lower side of the main body  31 , respectively. 
         [0017]    The retention assembly  40  includes a bracket  50  slidably attached to the frame  20 , and a connector  60  fixed to the main frame  20  adjacent to the slide rails  211 . 
         [0018]    The bracket  50  includes a positioning plate  51 , a first side plate  53 , and a second side plate  55 . The positioning plate  51 , the first side plate  53 , and the second side plate  55  cooperatively define a cavity  57  receiving the ODD  30 . The positioning plate  51  is substantially rectangular and defines two guide grooves  511 , aligned and parallel. Each guide groove  511  extends from an edge to a center portion of the positioning plate  51  and includes a guiding portion  513  and a limiting portion  515  connected to an end of the guiding portion  513 . The limiting portion  515  is narrower than the guiding portion  513  and has the same width as the slide rail  211 . The positioning plate  51  includes a substantially U-shaped edge  517  to latch the positioning protrusions  213 . 
         [0019]    The first side plate  53  extends substantially perpendicular to a lower side of the positioning plate  51  and defines two separated through holes  531 . The second side plate  55  includes a bent portion  551  extending substantially perpendicular to an upper side of the positioning plate  51 , an extending portion  553  extending substantially perpendicular to the bent portion  551 , and a fixing portion  555  extending substantially perpendicular to the extending portion  553 . The positioning plate  51 , the bent portion  551 , and the extending portion  553  cooperatively define a cavity (not labeled) to receive the supporting plate  33  of the ODD  30 . The fixing portion  555  defines two separated through holes  531 . The retention assembly  40  further includes four fasteners  59  received in the four fixing holes  35  after extending through the four through holes  531 , such that such that the ODD  30  is fixed to the bracket  50 . 
         [0020]    The connector  60  defines a slot  62  to connect with an interface (not shown) of the ODD  30 , and it is electrically connected to the motherboard via cables. The connector  60  further defines two fixing holes  64  on opposite ends of the connector  60 . The base plate  21  of the main frame  20  forms two fixing columns  215  adjacent to the slide rail  211 . Each fixing column  215  defines a threaded positioning hole (not labeled) along its axis. The retention assembly  40  further includes two fasteners  66  extending through the two fixing holes  64  and received in the two positioning holes of the fixing columns  215 , to fix the connector  60  to the main frame  20 . 
         [0021]    Referring to  FIG. 2  again, the housing  80  defines an opening  82  corresponding to the mounting hole  231 . The ODD  30  can be taken out from the host  10  via the opening  82 . The housing  80  includes a cover  84  to disposed on the opening  82 , to prevent the ODD  30  from detaching the host  10 . 
         [0022]    In assembly, the ODD  30  is secured in the cavity  57  of the bracket  50  via the fasteners  59 , and it is then moved into the housing  80  through the opening  82 . When the bracket  50  passes through the mounting hole  231 , the slide rails  211  slide into the guide grooves  511 . When the slide rails  211  reach the limiting portions  515  of the guide grooves  511 , the interface of the ODD  30  is received in the slot  62  of the connector  60 , such that the ODD  30  is electrically connected to the connector  60 . Concurrently, the elastic positioning protrusion  213  latches the edge  517  of the bracket  50 , to restrict the movement of the bracket  50  relative to the main frame  20 . 
         [0023]    When disassembling the ODD  30 , the cover  84  is dismounted from the housing  80 . The bracket  50  slides along the slide rails  211 , such that the ODD  30  is disconnected to the connector  60 , and the ODD  30  is then withdrawn from the host  10  through the opening  52 . 
         [0024]    In the electronic device  100 , the ODD  30  is aligned to electrically connect to the connector  60  by the guide groove  511  or the slide rail  211 , thus, it is not necessary to perform unduly time-consuming and laborious unplugging or inserting of the cables. 
         [0025]    The cover  84  and the elastic positioning protrusion  213  may be omitted. The slide rails  211  may be located on the bracket  50 , while the guide grooves  511  are defined on the main frame  20 . One or more than two slide rails  211  or guide grooves  511  may be alternatively deployed. 
         [0026]    It is believed that the present embodiments and their advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the disclosure or sacrificing all of its material advantages.