Abstract:
A server rack includes a case, a rear door panel and a latching device. The case defines an opening; the rear door panel is rotatably secured to the case; the latching device includes a controlling member secured to the positioning member and a positioning member secured to the controlling member; the positioning member is slidable relative to the rear door panel, to be engaged in the opening or disengaged from the opening; the controlling member is adapted to slide and lock the positioning member.

Description:
BACKGROUND 
       [0001]    1. Technical Field 
         [0002]    The present disclosure relates to a server rack, and particularly to a server rack with a rear door panel that can be conveniently opened and closed. 
         [0003]    2. Description of Related Art 
         [0004]    A server rack houses electronic equipment, such as data storage devices and power supplies. The server rack usually includes two rectangular frames, a plurality of supports connected to the two rectangular frames, and a rear door panel secured to the two rectangular frames and the supports. The rear door panel can be opened when a server is needed to be added in or removed from the sever rack. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0005]    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 embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views. 
           [0006]      FIG. 1  is an exploded, isometric view of a server rack in accordance with an embodiment. 
           [0007]      FIG. 2  is an enlarged view of an encircled portion II of  FIG. 1 . 
           [0008]      FIG. 3  is an isometric view of a linking beam and a positioning body of  FIG. 1 . 
           [0009]      FIG. 4  is assembled, isometric view of  FIG. 1 , and a rear door panel is in place and closed. 
           [0010]      FIG. 5  is similar to  FIG. 4 , but the rear door panel is in place and open. 
       
    
    
     DETAILED DESCRIPTION 
       [0011]    The disclosure is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean at least one. 
         [0012]    Referring to  FIG. 1 , a server rack in accordance with an embodiment includes a case  10  and two rear door panels  30  (just one rear door panel with a latching device  50  is shown in  FIG. 1 ,  FIG. 4  and  FIG. 5 ). 
         [0013]    The case  10  includes a first beam  11  and a second beam  13 . Two first mounting extensions  115  extend from the case  10  and located on two opposite ends of the first beam  11 . Two second mounting extensions  135  extend from two opposite ends of the second beam  13 . The two first mounting extensions  115  are substantially parallel and coaxial to the two second mounting extensions  135 . A first mounting post  117  extends down from each first mounting piece  115  towards the second mounting piece  135 . A second mounting post  137  extends up from each second mounting piece  135  towards the first mounting piece  115 . The first beam  11  includes a bottom wall  111 . The bottom wall  111  is substantially perpendicular to the second mounting post  137 , and defines a first opening  113 . The second beam  13  includes a top wall  131 . The top wall  131  is substantially perpendicular to the second mounting post  137 , and defines a second opening  133 . 
         [0014]    A first side edge of the rear door panel  30  defines a receiving slot  35 . One of the first mounting post  117  and one of the second mounting post  137  are engaged in opposite ends of the receiving slot  35 , to rotatably locate the rear door panel  30  against the case  10 . A flange  31  extends from a second side edge of the rear door panel  30 . The flange  31  defines a notch  311 . The rear door panel  30  defines two positioning holes  33 , and the latching device  50  is installed in the rear door panel  30 . 
         [0015]    The latching device  50  includes two limiting members  51 , two positioning members  55  and a controlling member  59 . 
         [0016]    Referring to  FIG. 2  and  FIG. 3 , each limiting member  51  includes a body  511  and two positioning extensions  513  extending from two opposite side edges of the body  511 . The two positioning extensions  513  are substantially coplanar. The body  511  defines a through hole  5111 . In one embodiment, the through hole  5111  is substantially rectangular. Each positioning piece  513  defines two positioning holes  5131 . Each positioning member  55  includes a linking beam  551  and a positioning body  553 . The linking beam  551  defines two first mounting holes  5511 . The positioning body  553  includes a first body  555  and a second body  556 . The first body  555  defines a second mounting hole  5551 . In one embodiment, the positioning body  553  is substantially “Z” shaped, the cross-section of the positioning body  553  and of the linking beam  551  are rectangular. 
         [0017]    The controlling member  59  includes a controlling portion  591 , a first sliding piece  593  and a second sliding piece  595 . The controlling portion  591  defines two through holes (not shown), and a rotating piece  597  located on the controlling portion  591 . The first sliding piece  593  and the second sliding piece  595  are secured to two opposite ends of the controlling portion  591  and can, in concert, extend from or retract into the controlling portion  591 . The rotating piece  597  is rotatably attached to the controlling portion  591 , to move the first sliding piece  593  and the second sliding piece  595  by means of a duplex rack and pinion arrangement. In one embodiment, the cross-sections of the first sliding piece  593  and the second sliding piece  595  are rectangular. 
         [0018]    Referring to  FIG. 4  and  FIG. 5 , in assembly of the latching device  50 , the limiting member  51  is mounted to an inner surface of the rear door panel  30  through the positioning hole  5131 . A locking member, such as a screw, is inserted into the positioning hole  33  and the through holes of the controlling member  59 . The controlling member  59  is secured to the rear door panel  30  adjacent to the notch  311  of the flange  31 . The rotating piece  597  extends into the notch  311 . In one embodiment, the first sliding piece  593  and the second sliding piece  595  are substantially perpendicular to the rear door panel  30 . A first end of the linking beam  551  is secured to the first body  555  of the positioning body  553 , and a second end of the linking beam  551  is secured to the sliding piece  553  through the through hole  5111 . In one embodiment, the first sliding piece  593 , the second sliding piece  595  and the two linking beams  551  are substantially parallel to the two positioning bodies  553 . 
         [0019]    On case  10 , the rear door panel  30  can be rotated open and rotated closed. In the closed position, the rotating piece  597  extends out of the notch  311  and is substantially perpendicular to the first sliding piece  593  and the second sliding piece  595 . The second bodies  556  engage in the first opening  113  and the second opening  133 . In the open position, the rotating piece  597  is manually raised or depressed in the notch  311 , to a position substantially parallel to the sliding extensions  593  and  595 , and the second bodies  556  are released from the first opening  113  and the second opening  133 . 
         [0020]    When the rear door panel  30  must be opened, the rotating piece  597  is manually turned through an angle of 90 degrees. The first sliding piece  593  is moved away from the first beam  11 , and at the same time the second sliding piece  595  is moved away from the second beam  13 . The two positioning bodies  553  are disengaged from the first opening  113  and the second opening  133 , and the rear door panel  30  may then be swung open. 
         [0021]    When the rear door panel  30  is rotated from the open position to the closed position the rotating piece  597  may then be rotated from a position in line with the sliding extensions, to a position at right angles to them. The sliding extensions  593  and  585  re-engage respectively with the first and second beams  11  and  13 . The two positioning bodies  553  are engaged in the first opening  113  and the second opening  133 , and then the rear door panel  30  is once again located in the closed position. 
         [0022]    It is to be understood, however, that even though numerous characteristics and advantages have been set forth in the foregoing description of embodiments, together with details of the structures and functions of the embodiments, the disclosure is illustrative only and changes may be made in detail, especially in matters of shape, size, and the arrangement of parts within the principles of the disclosure, to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.