Patent Publication Number: US-11381024-B2

Title: Electrical connector

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to an electrical connector, and particularly to the electrical connector with hermetic structures thereof for enhancing waterproofing. 
     2. Description of Related Arts 
     China Utility Patent CN205122851U discloses an electrical connector with a plurality of independent relatively small reservoirs, which is an improvement to the traditional one having a single relatively huge space without the partition therein and tending to result in an uneven distribution of the injected glue. Notably, the small sized independent rooms for receiving and maintaining the glue may be beneficial for smooth fluidity of the glue while tending to have different depths of the injected glue in the respective independent rooms. Therefore, the waterproofing function at different rooms may not be equal with differences, disadvantageously. 
     Therefore, it is desired to provide an electrical connector with an improved hermetic structure wherein the glue may be not only injected into the small sized independent rooms formed on the back side of the housing for receiving the glue under superior fluidity but also distributed evenly with the same height in all the independent rooms for maintaining the same waterproof effect in all respective rooms. 
     SUMMARY OF THE INVENTION 
     An electrical connector includes an insulative housing and a plurality of contacts retained thereto. Each contact includes a retaining section, a contacting section in front of the retaining section, and a mounting section behind the retaining section. A plurality of independent glue reservoirs are formed on a rear side of the housing via crossing partitions. A tiny passage is formed in an exterior face of the partition to communicate the neighboring glue reservoirs so as to assure the even/same height of the hardened glue blocks in respective glue reservoirs. 
     Other advantages and novel features of the invention will become more apparent from the following detailed description of the present embodiment when taken in conjunction with the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWING 
         FIG. 1  is a perspective view of an electrical connector according to the invention; 
         FIG. 2  is another perspective view of the electrical connector of  FIG. 1  without showing the hermetic structures on the rear side of the housing; 
         FIG. 3  is a perspective view of the electrical connector of  FIG. 1  with the hermetic structures on the rear side of the housing; 
         FIG. 4  is an exploded perspective view of the electrical connector of  FIG. 3 ; 
         FIG. 5  is another exploded perspective view of the electrical connector of  FIG. 4 ; 
         FIG. 6  is an enlarged cross-sectional view of a portion of the electrical connector of  FIG. 1 ; 
         FIG. 7  is a side view of the contacts of the connector of  FIG. 1 ; 
         FIG. 8  is a cross-sectional view of the electrical connector of  FIG. 1  without showing the hermetic structures; 
         FIG. 9  is an enlarged cross-sectional view of a portion of the electrical connector of  FIG. 8 ; and 
         FIG. 10  is a cross-sectional view of the electrical connector of  FIG. 8 . 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to  FIGS. 1-10 , an electrical connector  100  includes an insulative housing  1 , a plurality of contacts  2  retained to the housing  1 , and a spacer  3 . The contacts  2  include a set of power contacts  201  and two sets of signal contacts  201 . The contact  2  includes a retaining section  21  retained within the housing  1 , a contacting section  22  in front of the retaining section  21 , and a mounting section  24  located behind the retaining section  21  with a right angle type connecting section  23  linked therebetween. 
     The housing  1  includes a base  11 , a pocket  12  extending forwardly from the base  11 , and a mounting stand  13  behind the base  11 . The pocket  12  surrounds a receiving cavity  120  into which the contacting sections  22  extend. A receiving space  130  is formed in the mounting stand  13 , and the connecting sections  23  are received within the receiving space  130 . The base  11  forms a plurality of passageways  111 , and the retaining sections  21  are equipped with barbs  211  to be engaged within the passageways  111 . A plurality of glue rooms  112  surrounded by partitions  115 , are formed behind the base  11 , through which the connecting sections  23  extend. A tiny passage  113  is formed in an exterior face of the partition  115  to communicate the two neighboring glue rooms  112  with each other. It is especially true when the fluid type is injected into the respective glue rooms  112  and can flow toward the neighboring glue room  112  via the passage  113  so as to assure the fluid type glue  4  in the respective glue rooms  112  may keep at a same level with the same depth so as to have the corresponding hardened glue blocks have the same waterproofing effect with regard to the contacts  2 . Understandably, the partitions and the glue may be applied upon a front side of the base  11  instead of the rear side thereof. 
     A standoff  116  is formed on a rear side of the base  11  around the corresponding passageway  111  and extends into the glue room  112 . Oppositely, the front side of the base  11  forms a recess  117  in each passageway  111  to receive a corresponding step  217  forms on the contact  2  so as to stabilize the contact  2  in the passageway  111 . 
     The spacer  3  forms a through holes  31  through which the mounting sections  24  of the contacts  2  extend. The mounting stand  13  includes a pair of walls  131  between which the receiving space  130  is formed. Each wall  131  includes a post  132  for extending into the corresponding hole in the printed circuit board on which the connector  100  is seated, and a hook  133  engaged with an undersurface of the printed circuit board. The spacer  3  is assemble upon the housing  1  in a floating manner by means of the locking projections  134 ,  135 , which are formed on the corresponding wall  131 , in engagement with the hooks  32  formed on the spacer  3 . The spacer  3  further includes a pair of posts  33  extending into the holes in the printed circuit board. 
     As shown in  FIG. 9 , the connecting section  23  forms a recess  231  in each side to enhance retention with the glue  4 . 
     Although the present invention has been described with reference to particular embodiments, it is not to be construed as being limited thereto. Various alterations and modifications can be made to the embodiments without in any way departing from the scope or spirit of the present invention as defined in the appended claims.