Patent Publication Number: US-2012028497-A1

Title: Lower profile cable connector

Description:
FIELD OF THE INVENTION 
     The present invention relates to a cable connector, and more particularly to a cable connector with audio or video signal transmission. 
     DESCRIPTION OF PRIOR ART 
     Recently, with the more frequent use of electric equipments or electric products, users often carry the electric equipments or electric products. If the product is too large, it is not convenient to carry and use it. Currently, the most common interface connector for audio or video signals transmission is RCA connector, user usually achieves audio and video signal transmission by using many connectors at the same time. However, the RCA connector is too large to be carried conveniently. 
     As discussed above, an improved cable connector overcoming the shortages of existing technology is needed. 
     SUMMARY OF THE INVENTION 
     Accordingly, an object of the present invention is to provide a lower profile cable connector . 
     In order to achieve the above-mentioned objects, A cable connector, comprising a conductive terminal having a pin portion for mating and a connecting portion located in the rear of the pin portion, an insulator accommodating the conductive terminal and defining an exposing portion locating at the front of thereof, a shell locating at the rear of the exposing portion, a cable having a signal wire and a grounding wire, the signal wire connects to the conductive terminal and the grounding wire connects to the shell. 
     Other objects, features and advantages of the invention will be apparent from the following detailed description taken in connection with the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of a cable connector in accordance with the present invention; 
         FIG. 2  is an exploded, perspective view of the cable connector shown in  FIG. 1 ; 
         FIG. 3  is other exploded, perspective view of the cable connector shown in  FIG. 1 ; 
         FIG. 4  is a partly exploded, perspective view of the cable connector shown in  FIG. 1 ; and 
         FIG. 5  is a cross section view of the cable connector of  FIG. 1  taken along line  5 - 5 . 
     
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
     Reference will now be made to the drawing figures to describe the present invention in detail. 
     Referring to  FIGS. 1 to 5 , a cable assembly  100  includes a conductive terminal  1 , an insulator  2  enclosing the conductive terminal  1 , a front shell  4  accommodating the insulator  2 , a rear shell  5  located at a rear of the front shell  4 , a cable  6  connecting respectively to the conductive terminal  1  and the front shell  4 , an inner-molding  3  located behind the front shell  4  and enclosing the cable  6  and a strain relief  7 . 
     The cable  6  has two wires, one wire is a signal wire  61  and another wire is a grounding wire  62 . 
     The conductive terminal  1  is made of the metal material, e.g. copper or other metal material. The conductive terminal  1  is cylindrical and includes a pin portion  11  for mating a complementary connector (not shown), a connecting portion  13  located on the rear of thereof and connecting signal wire  61  and an intermediate portion  12  connecting with the connecting portion  13  and the pin portion  11 . The diameter of the intermediate portion  12  is smaller than the diameter of the pin portion  11  and the connecting portion  13 , it makes the conductive terminal  1  and the insulator  2  connect steadily. 
     The insulator  2  is made of plastic, and PBT (polybutylene terephthalate) is preferred in accordance with the present invention. The insulator  2  is L-shape and completely enclosing the intermediate portion  12  of the conductive terminal  1 . The insulator  2  includes a cylindrical exposing portion  21 , an engagement portion  22  extending backwardly from the exposing portion  21  and a convex  23  extending upwardly from the upper surface of the engagement portion  22 . The outer surface of the exposing portion  21  and the pin potion  11  are alignment. 
     The front shell  4  is made of the metal material, e.g. Zinc Alloy or other metal. The front shell  4  includes a main portion  41 , a ring step portion  42  extending backwardly from the rear surface of the main portion  41 , a connecting portion  43  extending backwardly from the step portion  42  and connected to the grounding wire  62  of the cable  6  and an inserting portion  44  for guiding and protection extending forwardly from the front surface of the main portion  41  and can insert the complementary connector (not shown). The left and right sides surface of the main portion  41  and the step portion  42  are plane, and the upper and lower surface of the main portion  41  and the step portion  42  are arc. The inserting portion  44  is an arc sheet shape and locates at a side of the conductive terminal  1  and partially surrounds conductive terminal  1 . In other implementations, the inserting portion  44  may be a pair or more and locates respectively at two side of the conductive terminal  1 . From the front view, the main portion  41  and the inserting portion  44  is flat shape. The main portion  41  has a through hole  411  passing through the front and rear surface thereof and communicating with the step portion  42 . 
     The inner-molding  3  is made of the plastic and rectangular shape, and PE (polyethylene) is preferred in accordance with the present invention. The upper and lower surface of inner-molding  3  is arc and the left and right sides thereof are plane. The inner-molding  3  encloses the connecting portion  13  of the conductive terminal  1  and the front shell  4 . 
     The rear shell  5  is made of the metal material, e.g. Zinc Alloy or other metal. The rear shell  5  defines a through hole  51  passed through the cable  6  and located on the rear surface thereon, a receiving space  52  accommodating the inner-molding  3  and a receiving slit  53  recessed backwardly from the front surface thereon and connecting to the step portion  42  of the front shell  4 . The shape of the rear shell  5  is the same as the front shell  4 , the upper and lower surfaces are arc and the left and right sides of he rear shell  5  are plane. The rear shell  5  and the front shell  4  collectively refer to a shell. 
     The strain relief  7  is molded on the outer surface of the cable  6  and located at the rear of the rear shell  5 . The material is PVC (poly vinylchloride) in accordance with the present invention. 
     Assembling, the insulator  2  is molded on the conductive terminal  1  and the front shell  4  at same time for retention steady the conductive terminal  1  and the front shell  4 . The insulator  2  fills with the intermediate portion  12  of the conductive terminal  1  and the exposing portion  21  of the insulator  2  located at the front of the main portion  41  of the front shell  4 , the engagement portion  22  and the convex  23  accommodate in the step portion  42 , the connecting portion  13  of the conductive terminal  1  exposes the rear surface of the insulator  2 , the inserting portion  44  locates at a side of the conductive terminal  1  and surrounds the conductive terminal  1 , the non-surrounding space of the exposing portion  21  is open. The cable connector  100  transmit the audio and video signal in accordance with of the present invention, it can replace the existing RCA connector and match the existing RCA socket of the products. The different color of the exposing portion  21  of the insulator  2  which replaces the existing RCA cable connector which the color of its insulator  2  is different in different signal cable connector can discriminate different signal. 
     The signal wire  61  of the cable  6  solders on the connecting portion  13  of the conductive terminal  1  and the grounding wire  62  solders on the connecting portion  43  of the front shell  4 . Molding, the inner-molding  3  encloses the connecting portion  13  the conductive terminal  1 , the connecting portion  42  of the front shell  4  and the cable  6 . The cable  6  passes through the through hole  51 , the receiving slit  53  of the rear shell  5  accommodates the step portion  42  of the front shell  4 , the receiving space  52  of the rear shell  5  accommodates the inner-molding  3 . The connection between the receiving slit  53  and the step portion  42  is steady by the way of glue or interference. The strain relief  7  encloses the cable  6  and is adjacent to the rear surface of the rear shell  5 . 
     It will be understood that the invention may be embodied in other specific forms without departing from the spirit or central characteristics thereof The present examples and embodiments, therefore, are to be considered in all respects as illustrative and not restrictive, and the invention is not to be limited to the details given herein.