Electrical connector with improved terminal groups and connector assembly having the same

An electrical connector, comprising:

• an insulating body comprising a mating surface, a mating slot extending through the mating surface along a first direction, a first notch and a second notch, the first notch and the second notch extending through the mating surface along the first direction and being located on opposite sides of the mating slot, respectively;
• the first notch and the second notch communicating with the mating slot, the first notch and the second notch being symmetrically formed on the opposites sides of the mating slot along a second direction, the second direction being perpendicular to the first direction;
• and
• a plurality of terminal groups comprising a first terminal group and a second terminal group, the first terminal group comprising a first conductive terminal and a second conductive terminal, the second terminal group comprising a third conductive terminal and a fourth conductive terminal, the first conductive terminal comprising a first elastic arm, the first elastic arm comprising a first mating portion at least partially protruding into the mating slot;
• the second conductive terminal comprising a second elastic arm, the second elastic arm comprising a second mating portion at least partially protruding into the mating slot;
• the third conductive terminal comprising a third elastic arm, the third elastic arm comprising a third mating portion at least partially protruding into the mating slot;
• the fourth conductive terminal comprising a fourth elastic arm, the fourth elastic arm comprising a fourth mating portion at least partially protruding into the mating slot;
• the first mating portion and the second mating portion being disposed facing each other, the third mating portion and the fourth mating portion being disposed facing each other;
• wherein the mating slot comprises a first slot and a second slot which is located at a rear end of the first slot and communicated with the first slot;
• the first mating portion and the second mating portion are located on opposite sides of the first slot along a third direction, respectively;
• the third mating portion and the fourth mating portion are located on opposite sides of the second slot along the third direction, respectively;
• the third direction is perpendicular to the first direction and the second direction;
• wherein the electrical connector further comprises a plurality of terminal modules which are arranged side by side along the second direction and assembled together;
• each terminal module comprises an insulating block and the plurality of terminal groups fixed to the insulating block;
• and
• wherein the insulating block is not provided with an opening exposing the second conductive terminal out of the insulating block;
• the insulating block is provided with a first opening exposing the fourth conductive terminal out of the insulating block;
• the insulating block is provided with a plurality of second openings exposing the third conductive terminal out of the insulating block;
• the insulating block is provided with a plurality of third openings exposing the first conductive terminal out of the insulating block;
• the number of the third openings is greater than the number of the second openings, and the number of the second openings is greater than the number of the first opening.

A connector assembly, comprising:

• an electrical connector comprising:
• an insulating body comprising a mating surface, a mating slot extending through the mating surface along a first direction, a first notch and a second notch, the first notch and the second notch extending through the mating surface along the first direction and being located on opposite sides of the mating slot, respectively;
• the first notch and the second notch communicating with the mating slot, the first notch and the second notch being symmetrically formed on the opposites sides of the mating slot along a second direction, the second direction being perpendicular to the first direction;
• and
• a plurality of terminal groups comprising a first terminal group and a second terminal group, the first terminal group comprising a first conductive terminal and a second conductive terminal, the first conductive terminal and the second conductive terminal being not in contact with each other;
• the second terminal group comprising a third conductive terminal and a fourth conductive terminal, the third conductive terminal and the fourth conductive terminal being not in contact with each other;
• the first conductive terminal comprising a first elastic arm, the first elastic arm comprising a first mating portion at least partially protruding into the mating slot;
• the second conductive terminal comprising a second elastic arm, the second elastic arm comprising a second mating portion at least partially protruding into the mating slot;
• the third conductive terminal comprising a third elastic arm, the third elastic arm comprising a third mating portion at least partially protruding into the mating slot;
• the fourth conductive terminal comprising a fourth elastic arm, the fourth elastic arm comprising a fourth mating portion at least partially protruding into the mating slot;
• the first mating portion and the second mating portion being disposed facing each other, the third mating portion and the fourth mating portion being disposed facing each other;
• and
• a mating connector comprising:
• a tongue plate comprising a first plate portion and a second plate portion, the first plate portion and the second plate portion being arranged along the first direction, a thickness of the first plate portion being greater than a thickness of the second plate portion, a first metal pad and a second metal pad being provided on opposite surfaces of the first plate portion, respectively;
• a third metal pad and a fourth metal pad being provided on opposite surfaces of the second plate portion, respectively;
• when the mating connector is mated with the electrical connector, the tongue plate is inserted into the mating slot, the first metal pad is in contact with the first mating portion, the second metal pad is in contact with the second mating portion, the third metal pad is in contact with the third mating portion, and the fourth metal pad is in contact with the fourth mating portion.