Patent Publication Number: US-6217359-B1

Title: Mobile rack for removable hard disk driver

Description:
FIELD OF THE INVENTION 
     The present invention relates to a mobile rack, especially to a mobile rack for removable hard disk driver, by which the production cost is reduced and the signal transmission speed is enhanced. 
     BACKGROUND OF THE INVENTION 
     FIGS. 1 and 2 shows the conventional removable hard disk driver  10   a  and the mobile rack thereof. The mobile rack comprises an inner frame  11   a  slidably fit within an outer frame  12   a.  The inner frame  11   a  has a first circuit board  13   a  on rear end thereof and having a first connector  14   a.  The first circuit board  13   a  is electrically connected to the removable hard disk driver  10   a.  The outer frame  12   a  has a second circuit board  15   a  on rear end thereof and having a second connector  16   a.  The second connector  16   a  is electrically connected to the first connector  14   a  to transmit electrical signal for the hard disk driver  10   a.    
     However, in above conventional mobile rack for the removable hard disk driver  10   a,  two circuit boards  13   a  and  15   a  are required on the inner frame  11   a  and the outer frame  12   a,  respectively. The cost is high and the signal transmission speed is slow. 
     It is an object of the present invention to provide a mobile rack for removable hard disk driver, by which the production cost is reduced and the signal transmission speed is enhanced. 
     To achieve the above object, in the inventive mobile rack for removable hard disk driver, the circuit boards on the inner and outer frames are eliminated, thus reducing cost and enhancing spees. 
    
    
     The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing, in which: 
     BRIEF DESCRIPTION OF DRAWINGS 
     FIG. 1 is a perspective view of the prior art removable hard disk driver and the mobile rack thereof; 
     FIG. 2 is another perspective view of the prior art removable hard disk driver and the mobile rack thereof; 
     FIG. 3 is the perspective view of the present invention; 
     FIG. 4 is the exploded view of the present invention 
     FIG. 4A is an enlarged view of the first connector of the present invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     FIG. 3 is the perspective view of the present invention; and FIG. 4 is the exploded view of the present invention. The preferred embodiment according to the present invention comprises a removable hard disk driver  10 , an inner frame  11  and an outer frame  12  wherein the inner frame  1   1  is slidably fit within the outer frame  12 . The inner frame  11  has a cover  13  on top and bottom sides thereof to seal the inner frame  11 . The outer frame  12  has horizontal rails  14  on inner sides thereof for the sliding movement of the inner frame  11 . The outer frame  12  has a fan  15  on rear side thereof for heat dissipation. 
     The inner frame  11  has at least one first connector  16  on rear side thereof and comprising an insulating case  17  and a plurality of conductive terminals  18  within the insulating case  17 . The insulating case  17  has a larger-area panel-shaped first retainer  19  on the rear end thereof. The first retainer  19  has two retaining holes  20  on both sides thereof. The first connector  16  is locked on the rear end of the inner frame  11  by screwing two screws  21  into the two retaining holes  20 . The conductive terminals  18  of the first connector  16  are electrically connected to one end of a first flat cable  22 . The other end of the first flat cable  22  is electrically connected to the hard disk driver  10 . 
     The outer frame  12  has at least one second connector  23  on rear side thereof and comprising an insulating case  24  and a plurality of conductive terminals  25  within the insulating case  24 . The insulating case  24  has a larger-area panel-shaped second retainer  26  on the rear end thereof. The second retainer  26  has four retaining holes  27  on both sides thereof. The second connector  26  is locked on the rear end of the outer frame  12  by screwing four screws  28  into the two retaining holes  27 . The conductive terminals  25  of the second connector  23  are electrically connected to one end of a second flat cable  29 . The other end of the second flat cable  29  is electrically connected to the motherboard (not shown). The second connector  26  is electrically connected to the first connector  16  to transmit electrical signal for the hard disk driver  10 . 
     As can be seen from above description, the circuit boards on the inner frame and outer frame are eliminated in the present invention. The production cost is reduced. Moreover, the first and second connector are connected to the hard disk driver and the motherboard through the first and second flat cable, the signal transmission speed is enhanced. 
     Although the present invention has been described with reference to the preferred embodiment thereof, it will be understood that the invention is not limited to the details thereof. Various substitutions and modifications have suggested in the foregoing description, and other will occur to those of ordinary skill in the art. Therefore, all such substitutions and modifications are intended to be embraced within the scope of the invention as defined in the appended claims.