Electronic apparatus

1 . An electronic apparatus comprising:

a flat rectangular chassis that includes

a side wall frame in which at least three side walls are formed by bending an extruded material,

an upper cover with a keyboard and a lower cover configured to form external top and bottom surfaces of the chassis by being combined with the side wall frame forming the three side walls of the chassis, and

a plate frame that has a plate shape and is provided between facing portions of the three side walls, wherein

the plate frame includes two partition walls having an angle intersecting with a plate-shaped portion, and forms a space surrounded on three sides by the plate-shaped portion and the two partition walls,

a stop block, with a board connection connector, is inserted at an end of the plate frame and fitted into the space from a side of the space, and

a part of an edge portion of the lower cover is sandwiched between the side wall frame and the stop block,

a plate frame insertion hole into which the plate frame is fitted is formed in the lower cover,

the part of the edge portion is a bridge portion that joins both sides of the lower cover with the plate frame insertion hole interposed between both the sides, and

the lower cover is only removable after removing the stop block.

2 . The electronic apparatus according to claim 1 , wherein

two of the stop blocks are provided, and the stop blocks are fitted from both ends of the space.