Abstract:
The present invention firmly fastens a cover and a base of an electrical connector. The fastening is done with a precise three-dimensional positioning. The process for a mold opening of the connector is simplified and no slider is in need.

Description:
FIELD OF THE INVENTION 
     The present invention relates to a fastening structure; more particularly, relates to firmly fastening a base member and a cover member by a precise three-dimensional positioning while leaving out slider with a simplified mold opening. 
     DESCRIPTION OF THE RELATED ART 
     As shown in  FIG. 6 , a prior art is proclaimed in Taiwan, called “An assembly of a connector”, comprising an insulated base  4 , a main frame  5  and a terminals seat  6 . Therein, the insulated base  4  has a connecting space  41  and a first connecting part  42 ; the first connecting part  42  has two first locking holes  421  at two sides separately; a plurality of long sags  411  are concaved at the bottom of the connecting space  41 ; the connecting space  41  is led to the first connecting part  42  at the back of the insulated base  4 . The main frame  5  is bond to the first connecting part  42  of the insulated base  4 ; the main frame  5  has a containing space  51  inside; the containing space  51  has a second connecting part  52  at a side; the second connecting part  52  has two first lockers  521  at two sides to be locked with the first locking holes  421  for fastening to the first connecting part  42  of the insulated base  4 ; and, the main frame  5  has a second locker  71  at the bottom. The terminals seat  6  is bond to the first connecting part  42  of the insulated base  4  and is located at the bottom of the main frame  5 ; the terminals seat  6  has an connecting space  61 ; the terminals seat  6  has a second locking hole  72  corresponding to the second locker  71  at the bottom of the main frame  5  for fastening. to the main frame  5 . The connector of the prior art is obtained by locking the second locker  71  of the main frame  5  to the second locking hole  72  of the terminals seat and then butting and binding the first locker  521  of the second connecting part  521  to the first locking hole  421  of the first connecting part  42 . 
     Yet, the insulated base  4 , the ma in frame  5  and the terminals seat  6  are bond by locking and butting the first locker  521 , the first locking hole  421 , the second locker  71 , and the second locking hole  72  so that its fastening force and its stability is not strong enough. Besides, the first locker  521  and the second locker  71  are extended outwardly, which is apt to be broken on assembling the prior art. Hence, the prior art does not fulfill users&#39; requests on actual use. 
     SUMMARY OF THE INVENTION 
     The main purpose of the present invention is to firmly fasten a base member and a cover member through binding a combining part and a gap of a base member to an indentation part and a socket part of a cover member respectively by a precise three-dimensional positioning. 
     Another purpose of the present invention is to simplify a mold opening while leaving out slider. 
     To achieve the above purposes, the present invention is a fastening structure for an electrical connector, comprising a base member and a cover member. Therein, the base member has a containing space and a socket unit; the socket unit is exposed out of an end surface of the base member; the containing space has a plurality of conductive terminals; at least two corresponding combining parts are set at a rim of an opening end of the containing space; and, the containing space has two gaps on two side surfaces leading to the bottom of the base member. The cover member comprises a cover plate and a bottom plate; the cover plate is cove red on the opening end of the containing space; the bottom plate is deposed at the bottom of the base member penetrated through by the conductive terminals; the cover plate has an indentation part corresponding to the combining part of the base member; and, the bottom plate has a socket part locked to the gap of the base member. Accordingly, a novel fastening structure for an electrical connector with no slider is obtained while a mold opening is simplified. 
    
    
     
       BRIEF DESCRIPTIONS OF THE DRAWINGS 
       The present invention will be better understood from the following detailed description of the preferred embodiment according to the present invention, taken in conjunction with the accompanying drawings, in which 
         FIG. 1  is a perspective view of a preferred embodiment according to the present invention; 
         FIG. 2  is a perspective view of the base member; 
         FIG. 3  is a perspective view of the cover member; 
         FIG. 4  is a view showing an assembly of the preferred embodiment; 
         FIG. 5A  is a first partial cross-sectional view of the assembly; 
         FIG. 5B  is a second partial cross-sectional view of the assembly; and 
         FIG. 6  is a structural view of a prior art. 
     
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
     The following description of the preferred embodiment is provided to understand the features and the structures of the present invention. 
     Please refer to  FIG. 1 , which is a perspective view of a preferred embodiment according to the present invention. As shown in the figure, the present invention is a fastening structure for an electrical connector, comprising a base member  1  and a cover member  2 , where, after fastening the base member  1  and the cover member  2 , the electrical connector is firmly constructed with a precise three-dimensional positioning while leaving out slider and a mold opening is simplified. 
     Please further refer to  FIG. 2 , which is a perspective view of the base member. As shown in the figure, the base member  1  has a containing space  11  and a socket unit  12 ; a plurality of conductive terminals  121  are deposed in the containing space  11 ; the socket unit  121  extends out of an end surface of the base member  1 ; the conductive terminals  121  extend out of the bottom of the base member  1 ; at least two combining parts  13  are set at a rim of an opening end of the containing space  11 ; the combining part  13  has a baffle plate  131 ; a slot  132  is formed between the baffle plate  131  and an end surface of the base member  1 ; the baffle plate  131  has a protrusion  133  on a surface corresponding to the end surface of the base member  1 ; the containing space  11  has two gaps  14  at two sides of the opening end; the gaps  14  are led to the bottom of the base member  1 ; and, each gap  14  has a protruding part  141  on a side surface at bottom. 
     Please further refer to  FIG. 3 , which is a perspective view of the cover member. As shown in the figure, a cover member  2  according to the present invention comprises a cover plate  21  and a bottom plate  22 , where the cover plate  21  is covered on an opening end of a containing space  11 ; the bottom plate  22  is located at the bottom of the base member  1  and is connected with the cover plate  21 ; and, a plurality of conductive terminal  121  is penetrated through the bottom plate  22 . An indentation part  211  is deposed at the rim of the cover plate  21  corresponding to the combining part  13  of the base member  1  to be fastened together; and, a protrusion  212  is deposed on a surface of the indentation part  211 . The bottom plate  22  has a socket part  221  to be fastened to the gap  14  at the bottom of the base member  1 ; and the socket part  221  has a hook  222 . Thus, with the above structure, a novel fastening structure for an electrical connector is obtained. 
     Please refer to  FIG. 4 ,  FIG. 5A  and  FIG. 5B , which are a view showing an assembly of the preferred embodiment, and a first  3  and a second  4  partial cross-sectional views of the assembly. As shown in the figures, when assembling a base member  1  and a cover member  2  according to the present invention, the cover member  2  is moved to be locked to the base member  1 . After the assembly, an indentation part  211  (please refer to  FIG. 3 ) at an end of the cover plate  21  is corresponding to a combining part  13  of the base member  1 , as shown in the first partial cross-sectional view  3 , where, through a protrusion  133  of the combining part  13 , a baffle plate  131  of the combining part  13  is butted at a side of a protrusion  212  of the indentation part  211 ; and a side of the combining part  13  is closely stuck to a side of the indentation part  211 . Hence, the base member  1  and the cover member  2  are precisely positioned in the directions of X-axis and Y-axis when being fastened together, as shown by  FIG. 5A . in the other hand, as shown in the second partial cross-sectional view  4 , a socket part  221  of the bottom plate  22  is inserted into a gap  14  of the base member  1  so that a hook  222  of the socket part  221  is locked with a protruding part  141  at a side of the gap  14 . Hence, the base member  1  and the cover member  2  are fastened together with a precise positioning in the direction of Z-axis, as shown by  FIG. 5B . Consequently, the base member  1  and the cover member  2  are firmly fastened together by being precisely positioned in the directions of X-axis, Y-axis and Z-axis. 
     To sum up, the present invention is a fastening structure for an electrical connector, where a base member and a cover member are firmly fastened together through binding a combining part and a gap of the base member to an indentation part and a socket part of the cover member respectively by a precise three-dimensional positioning while leaving out slider and a mold opening is simplified. 
     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.