Abstract:
The present invention separates grounding units from a shell of an electric connector and makes them fabricated individually and later assembled together so that wastes over working hours, working procedures and bad electroplating can be avoided and cost can be reduced at the same time.

Description:
FIELD OF THE INVENTION  
       [0001]     The present invention relates to an electric connector; more particularly relates to preventing wastes in working hours, working procedures and bad electroplating by using a grounding structure.  
       DESCRIPTION OF THE RELATED ART  
       [0002]     A general connector, as shown in  FIG.6 , comprises a plastic base  5  and a metal shell  6 , where the plastic base  5  has at least one socket seat; the socket seat has at least one terminal  51  extending out of a bottom of the plastic base  5 ; an opening of the socket seat is corresponding to an end surface of the plastic base  5 ; the metal shell  6  is covered on the plastic base  5  over two side surfaces and a back surface and the metal shell  6  has more than one grounding terminal  61  extending out of a bottom end. Thus, when the connector is assembled on a circuit board, a grounding mechanism of the circuit board is obtained through the more than one grounding terminal  61  of the metal shell  6 .  
         [0003]     There, the above connector obtains a grounding mechanism with more than one grounding terminal  61  of the metal shell  6 . Owing to the requirements on the appearance of the metal shell  6 , the connector is usually made of stainless steel or cop per material. Regarding the stainless steel, tin is used over the grounding terminal  61  after the shape of the metal shell  6  is made, which results in wastes over working hours and working procedures and results in smears over the appearance of the metal shell  6 . Regarding the copper material, the whole metal shell  6  is plated with copper right after the shape of the metal shell  6  is made, which quite often results in bad quality of the electroplating owing to an unstable current. Hence, the prior art does not fulfill users&#39; requests on actual use.  
       SUMMARY OF THE INVENTION  
       [0004]     The main purpose of the present invention is to separately fabricate a shell and grounding units to be assembled later for preventing wastes in working hours, working procedures and bad electroplating.  
         [0005]     To achieve the above purpose, the present invention is an electric connector having a separated grounding structure, comprising a base, a shell and more than one grounding unit, where the base has at least one socket seat; the socket seat has at least one terminal extending out of the base; an opening of the socket seat is corresponding to an end surface of the base; the shell is covered on two side surfaces and an end surface of the base; and the grounding unit is deposed between a surface of the shell and a corresponding surface of the base. Therein, each of the surfaces of the shell corresponding to the surfaces of the base has a concave part; and the grounding unit comprises a plate and more than one grounding terminal deposed on a rim of the plate, where the grounding unit is deposed in the concave part of the shell through the plate. Accordingly, a novel electric connector having a separated grounding structure is obtained.  
     
    
     BRIEF DESCRIPTIONS OF THE DRAWINGS  
       [0006]     The present invention will be better understood from the following detailed description of the preferred embodiment according to the present invention, taken in con junction with the accompanying drawings, in which  
         [0007]      FIG. 1  is a perspective view showing a preferred embodiment according to the present invention;  
         [0008]      FIG. 2  is another perspective view showing the preferred embodiment according to the present invention;  
         [0009]      FIG. 3  is an explosive view showing the preferred embodiment according to the present invention;  
         [0010]      FIG. 4  is an A-A cross-sectional view showing the preferred embodiment according to the present invention;  
         [0011]      FIG. 5  is a view showing a state of use of the preferred embodiment according to the present invention; and  
         [0012]      FIG. 6  is an explosive view of a prior art. 
     
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0013]     The following description of the preferred embodiment is provided to understand the features and the structures of the present invention.  
         [0014]     Please refer to  FIG. 1  through  FIG. 4 , which are two perspective views, an explosive view and an A-A cross-sectional view showing a preferred embodiment according to the present invention. As shown in the figures, the present invention is an electric connector having a separated grounding structure, comprising a base  1 , a shell  2  and more than one grounding unit, where the shell  2  and the grounding unit  3  are fabricated separately and are assembled together afterward so that wastes in working hours, working procedures and bad electroplating are avoided.  
         [0015]     The base  1  is made of a plastic material; the base  1  has at least one socket seat  11 ; the socket seat  11  has at least one terminal  111  extending out of the base  1 ; and, the socket seat  11  has an opening  112  corresponding to an end surface of the base  1 .  
         [0016]     The shell  2  comprises two side boards  21 , and a plate  22  between two rims of the side boards  21  at the same direction; the shell  2  covers the base  1  with two side surfaces and an end surface of the shell; the shell  2  is made of a metal material; each of the two side surfaces of the shell  2  has a concave part  23  (on the inner side of the side board  21 ); and the concave part  23  has more than one fixing mechanism, such as a fixing hole  231 .  
         [0017]     Each grounding unit  3  is a grounding structure for the connector; the grounding unit  3  is deposed between a side surface of the base  1  and a corresponding side surface of the shell  2  the grounding unit  3  comprises a plate  31  to be deposed in the concave part  21 , and more than one grounding terminal  32  deposed on a rim of the plate  31 ; and, the plate  31  has more than one protrusion  33  on a surface of the plate and the protrusion  33  is corresponding to the fixing hole.  
         [0018]     Thus, by the above structure, a novel electric connector having a separated grounding structure is obtained.  
         [0019]     Please refer to  FIG. 3  through  FIG. 5 , which are an explosive view and an A-A cross-sectional view showing the preferred embodiment and a view showing a state of use of the preferred embodiment, according to the present invention. As shown in the figures, when assembling the present invention, at least one socket seat  11  is deposed in a plastic base  11 ; at least one terminal  111  of the socket seat  11  is extended out of a bottom of a base  1 ; and an opening  112  of the socket seat  11  is corresponding to an end surface of the base  1 . Then at least a grounding unit  3  is processed with an electroplating to be de posed in at least a concave part  23  of a shell  2  by a plate  31 ; and, protrusions  33  on a surface of the plate  31  are correspondingly fixed to fixing holes  2   31  of the concave part  23 . Thus, the grounding unit  3  is set at a side surface of the shell  2 . Then two side boards  21  of the shell  2  having the side surfaces with the grounding units  3  are deposed correspondingly on two side surfaces of the base  1 . And, a plate  22  is covered on the back surface of the base  1 . Thus, grounding units  3  are set between a side surface of the base  1  and a corresponding side surface of the shell  2  moreover, more than one grounding terminal  32  of the grounding unit  3  and at least one terminal of the socket seat  11  are extended to the same direction, so that a grounding mechanism for a connector is formed. When using the connector, more than one grounding terminal  32  of the grounding unit  3  and at least one terminal  111  of the socket seat  11  are simultaneously deposed on a circuit board  4  so that a grounding function is obtained for the connector, where, with such a simple mechanism, wastes in working hours, working procedures and bad electroplating are avoided. By separating a component of a shell  2  and other components of grounding units, the grounding units  3  are electroplated according to requirements while preventing the shell from smears after the electroplating and saving working hours and cost for removing solder joints.  
         [0020]     The grounding unit  3  can also be fixed on the outside surface of the shell  2  so that the grounding unit  3  can be fixed at any place on the outside surface of the shell  2 , where the fixing way can be locking, welding, riveting or embedding.  
         [0021]     To sum up, the present invention is an electric connector having a separated grounding structure, where a shell and grounding units are separately fabricated to be assembled later for preventing wastes in working hours, working procedures and bad electroplating.  
         [0022]     The preferred embodiment herein disclosed is not intended to unnecessarily limit the scope of the invention. Therefore, simple modifications or variations belonging to the equivalent of the scope of the claims and the instructions disclosed herein for a patent are all within the scope of the present invention.