Electrical connector having terminal distortion preventing structure

An electrical connector comprising:

• a connector housing;
• at least a terminal accommodating cavity defined in said connector housing for receiving a receptacle terminal of a rectangular hollow beam, said receptacle terminal having an electrical connection portion including a resilient contact tongue;
• a pin terminal insertion opening defined in said connector housing;
• and
• a distortion preventing member extending from said pin terminal insertion opening in said terminal accommodating cavity,
• wherein said distortion preventing member is defined to prevent distortion of a pin terminal even when said pin terminal is incorrectly inserted in a slanting direction through said pin terminal insertion opening into said receptacle terminal;
• said distortion preventing member has a rising wall rising from a bottom wall of said terminal accommodating cavity, said rising wall opposed to said resilient contact tongue, and an extended wall extending from a free end of said rising wall into said terminal accommodating cavity, said extended wall being in no interference relation with said resilient contact tongue, whereby said pin terminal is corrected in its insertion direction by said extended wall and an inner surface of said pin terminal insertion opening when said pin terminal is inserted incorrectly in a slanting direction into said receptacle terminal;
• and a clearance is provided between each side wall of said terminal accommodating cavity and said distortion preventing member for partially inserting a side wall of said receptacle terminal.