Electronic class board with efficient protection function

The utility model relates to the technical field of electronic class boards, in particular to an efficient protective electronic class board, which is characterized in that a transparent window is arranged on the outer side of a protective cover, rotating shafts are arranged at the tops of the side walls of the two sides of the protective cover, and lock catches are arranged at the bottoms of the side walls of the two sides of the protective cover; a cavity is formed in the outer side of the class board body, a display screen is arranged in the cavity, a battery box is arranged below the display screen, a plurality of heat dissipation notches are formed in the side walls of the two sides of the class board body, fixing locks are arranged at the bottoms of the side walls of the two sides of the class board body, and fixing seats are arranged on the two sides of the top of the class board body. A fixing seat is arranged on the back side of the class board body, a fixing hole is formed in the fixing seat, a groo