Electrical connector capable of increasing number of terminals with same size of insulating body

An electrical connector, configured to be electrically connected to a chip module, comprising:

• a body, having a bottom wall and a first side wall and a second side wall extending upward from the bottom wall and opposite to each other, wherein the bottom wall is provided with an accommodating hole, and a first supporting portion extending upward from the bottom wall and configured to support the chip module;
• a plurality of terminals, correspondingly accommodated in the body, wherein one of the terminals is accommodated in the accommodating hole;
• and
• a first protruding block connected to the first side wall and a second protruding block connected to the second side wall, wherein the first protruding block and the second protruding block extend toward each other along an extending direction, the first protruding block is partially cut off to provide a cut-off space such that the second protruding block is larger than the first protruding block, the first protruding block has a first arc-shaped surface, the second protruding block has a second arc-shaped surface, the first arc-shaped surface and the second arc-shaped surface are respectively configured to match with two notches of the chip module, the first supporting portion is connected to the first protruding block, the first supporting portion and the accommodating hole are located at two opposite sides of the first protruding block, the accommodating hole is provided on the bottom wall to at least partially overlap with the cut-off space along a vertical direction perpendicular to the bottom wall, and an extending line of the second protruding block in the extending direction passes above the accommodating hole.