Box body assembly and sound box

The utility model discloses a box body assembly and a sound box. Wherein the box body assembly comprises a box body and an air guide pipe, a mounting cavity is formed in the box body, a mounting opening for communicating the mounting cavity with the outside is formed in the side wall of the box body, the air guide pipe is arranged in the mounting cavity, one end of the air guide pipe is inserted into the mounting opening, and the air guide pipe is provided with a first pipe opening and a second pipe opening which are communicated with each other; the first pipe opening is formed in the end, inserted into the installation opening, of the air guide pipe, the second pipe opening is formed in the end, located in the installation cavity, of the air guide pipe, and in the height direction, the highest point of the first pipe opening is lower than the lowest point of the second pipe opening. According to the technical scheme, the waterproof performance of the box body assembly of the sound box can be improved. 本实用新型