Circuit board assembly with interconnecting fixing brackets holding board-to-board connectors to a circuit board and a device using the same

An electronic device, comprising a circuit board assembly, wherein the circuit board assembly comprises:

• a circuit board to which a first board-to-board connector and a second board-to-board connector are mounted;
• a first bracket, wherein the first bracket is mounted on the circuit board, the first bracket is located on a side of the first board-to-board connector away from the circuit board, the first bracket is configured to fasten the first board-to-board connector, and the first bracket is provided with an escape hole;
• a second bracket, wherein the second bracket is mounted on the circuit board, the second bracket is located on a side of the second board-to-board connector away from the circuit board, the second bracket is configured to fasten the second board-to-board connector, the second bracket is disposed neighboring to the first bracket, and the second bracket is provided with a tongue insert, the tongue insert being located on a side of the second bracket facing toward the first bracket;
• and
• a fixing member, wherein the fixing member is connected to the circuit board and the fixing member is provided with a slot, the slot extending out from the escape hole and at least part of the tongue insert being inserted into the slot;
• wherein the circuit board is a mainboard of the electronic device;
• wherein the first bracket is provided with a sunken portion, the sunken portion facing toward the circuit board, the sunken portion being located between the escape hole and the second bracket, and the sunken portion abutting against a side of the tongue insert facing toward the circuit board.