Electrical connector housing

An electrical connector housing comprising a lower shell including an upper panel with at least one opening and a side panel, at least one connector block including fixture ports provided thereon and being contained in said lower shell, and at least one upper shell covering said at least one opening of said upper panel;

• said upper panel of said lower shell including at least one first fixing mount with a locking hook and at least one draw hole both positioned outside said at least one opening, said at least one upper shell comprising an outer side face including at least one second fixing mount, such that said at least one draw hole is usable for forming said locking hook and such that said at least one second fixing mount is freely engageable with, and removable from, said first fixing mount;
• said upper panel of said lower shell having an inner face comprising at least one rib which is placed near said at least one draw hole and extends towards said side panel of said lower shell while surrounding said at least one draw hole, said upper face of said at least one connector block comprising a pair of partition walls at a position corresponding to that of said at least one rib, so that, when said at least one connector block is inserted into said lower shell, said at least one rib is interposed between said partition walls, thereby forming a draining space remote from a space for said fixture ports.