Patent Publication Number: US-8979586-B2

Title: Cable connector having a cable with a metallic piece between conductive wires

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a cable connector assembly, and more particularly to a cable connector assembly having a device for preventing crosstalk. 
     2. Description of Related Art 
     TW Patent No. M240,719 issued to Lin on Aug. 11, 2004 discloses a high speed performance RJ45 plug according to category 6 of communication standard. The RJ45 plug comprises an insulative housing, a spacer assembled to the insulative housing, a plurality of contacts accommodated into the insulative housing and a twisted-pair cable having four pairs of wires arranged by the spacer and electrically connected to the contacts. The four pairs of wires are arranged into two rows which are respectively located and positioned on top and bottom surfaces of the spacer. 
     Although four pairs of wires are located on two different rows, however, crosstalk problem may occur between two adjacent pairs of wires of the twisted-pair cable during the signal transmitting of the cable connector assembly. 
     Hence, an improved cable connector assembly with anticrosstalk device is desired to overcome the above problems. 
     SUMMARY OF THE INVENTION 
     Accordingly, an object of the present invention is to provide a cable connector assembly having anti-crosstalk function. 
     In order to achieve the object set forth, a cable connector assembly for mating with a complementary connector comprises: an insulative housing defining a receiving space and a plurality of receiving slots communicated with the receiving space; a wire management received into the receiving space; a twisted-pair cable having a plurality of first and second conductive wires assembled to the wire management and located on different planes; a metallic piece assembled to the wire management and disposed between the plurality of first and second conductive wires; and a plurality of terminals received into the plurality of receiving slots and pierced into the plurality of first and second conductive wires. 
     Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is an assembled, perspective view of a cable connector assembly in accordance with the present invention; 
         FIG. 2  is an exploded, perspective view of the cable connector assembly of  FIG. 1 ; 
         FIG. 3  is another exploded, perspective view of the cable connector assembly view similar to  FIG. 2 , taken from anther aspect; 
         FIG. 4  is a partially, exploded view of the cable connector assembly of  FIG. 1 ; and 
         FIG. 5  is another partially, exploded view of the cable connector assembly of  FIG. 1   
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Reference will now be made in detail to the preferred embodiment of the present invention. Referring to  FIGS. 1 to 5 , a cable connector assembly  100 , which is essentially a modular jack having four differential pairs thereof, comprises an insulative housing  1 , a plurality of conductive terminals  2  received into the insulative housing  1 , a wire management  3  received into the insulative hosing  1 , a twisted-pair cable  4  having a plurality of conductive wires  41 ,  42  connected with the terminals  2  and arranged by the wire management  3 , a metallic piece  5  assembled to the wire management  3  and a metallic shell  6  assembled to the insulative housing  1  and partially shielding the insulative housing  1 . 
     Referring to  FIGS. 2 to 3 , the insulative housing  1  defines opposite top and bottom surfaces, opposite left and right side surfaces and opposite front and rear surfaces. The insulative housing  1  defines a resilient latch  10  formed on the top surface thereof for engaging with a complementary connector (not shown). The insulative housing  1  further defines a plurality of receiving slots  110  extending upwardly from the bottom surface thereof and extending to the front surface thereof A receiving space  111  is recessed forwardly for a distance from the rear surface of the insulative housing  1  and communicated with the plurality of receiving slots  110 . The insulative housing  1  further defines two silts  112  extending inwardly from two side surfaces thereof and communicated with the receiving space  111 . Two recesses  113  are formed on two opposite sides surfaces and respectively located in front of the two slits  112 . The resilient latch  10  defines a projection  101  extending forwardly from the front surface of the housing  1  and a resilient pressing portion  102  extending upwardly and rearwardly from the projection  101 . The resilient pressing portion  102  defines two engaging portions  1021  formed at two sides thereof for engaging and disengaging with the complementary connector. 
     Referring to  FIGS. 2 to 3 , the wire management  3  is received into the receiving space  111  along a rear-to-front direction. The wire management  3  defines a base portion  30  and a pair of arms  31  extending rearwardly from two sides of the base portion  30  and spaced apart with each other. The base portion  30  defines a plurality of first and second passages  301 ,  302  for receiving and positioning the conductive wires  41 ,  42 . It should be noted that, each of the second passage  302  has a depth larger than that of the first passage  301 . Each of the second passage  302  is located between two first passages  301 . Each of arm  31  defines a channel  310  for receiving and supporting two sides of the metallic piece  5 . Each of arm  31  further defines a slit  3101  extending from a front-to-rear direction for a lateral portion of the metallic arm  31  passing through. 
     Referring to  FIGS. 4 to 5 , the twisted-pair cable  4  comprises a pair of first conductive wires  41  received into the two second passages  302 , three pairs of second conductive wires  42  received into six first passages  301 . Thus, one pair of first conductive wires  41  and three pairs of second conductive wires  42  are located on different planes. 
     Referring to  FIGS. 2 to 5 , the metallic piece or interposer  5  is structured in a thin piece. The metallic piece  5  comprises a body portion  50  and two curved tabs  51  respectively extending outwardly from the two lateral sides of the body portion  50 . 
     Referring to  FIGS. 1 to 5 , the metallic shell  6  comprise a shield portion  60  and a cable holder  61  extending rearwardly from a rear edge of the shield portion  60 . The shield portion  60  has a receiving room  601  for receiving the insulative housing  1 . 
     Referring to  FIGS. 1 to 5 , the assembling process of the cable connector assembly  100  made in according to present invention comprises following steps. Firstly, assembling the metallic piece  5  to the two arms  31  of the wire management  3 . And, two sides of the body portion  50  of the metallic piece  5  are received into two channels  310  of the two arms  31 . The two curved tabs  51  of the metallic piece  5  are passed through two slits  3101 . Secondly, assembling the two first conductive wires  41  to the two second passages  302 , and assembling four second conductive wires  42  to the six first passages  301 . It should be noted the metallic piece  5  is sandwiched between the first and second conductive wires  41 ,  42 . Thirdly, assembling the wire management  3 , the metallic piece  5  and the twisted-pair cable  4  to the insulative housing  1  together. The wire management  3  is received into the receiving space  111 . It should be noted that two tabs  51  of the metallic piece  5  extend out of the insulative housing  1  through two slits  112  and accommodated in the two recesses  113 . Fourthly, inserting the plurality terminals  2  into the receiving slots  110 , the first and second conductive wires  41 ,  42  are pierced by the plurality of terminals  2 . Finally, assembling the metallic shell  6  to the insulative housing  1 . The tabs  51  of the metallic plate  5  are contacted with inner surface of the metallic shell  6 . The cable holder  61  is grasped to an shielding layer (not figured) of twisted-pair cable  4 . 
     After the above assembling steps, the entire process of assembling of the cable connector assembly  100  is finished. As the metallic piece  5  is located between two conductive wires  41  and six second wires  42 . And, two tabs  51  of the metallic piece  5  are attached to the metallic shell  6 . Thus, the crosstalk between the two rows of the wires  41 ,  42  is isolated by the metallic piece  5 . As a result, the cable connector assembly  100  has good anti-crosstalk function due to the metallic piece  5  and the metallic shell  6 . 
     It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.