Middle frame of electronic device, processing method, and electronic device

An electronic device, comprising:

• a display screen;
• and
• a middle frame;
• wherein the display screen comprises a transparent cover plate and a display module;
• and
• the middle frame comprises:
• a partition plate and a peripheral wall, wherein the peripheral wall is circumferentially provided around the partition plate so that a first mounting cavity having an opening is formed in the middle frame, and the peripheral wall has a sealing surface that is provided circumferentially, the sealing surface is configured to be circumferentially sealed with a transparent cover plate of the display screen, and the peripheral wall further comprises a side surface located at a same side as the display screen;
• and
• a sound channel configured to conduct a sound in the sound production unit to the outside of the middle frame, wherein the sound channel is isolated from the first mounting cavity, and the sound channel comprises a sound inlet and a first sound outlet, the sound inlet is configured to be communicated with a sound cavity of the sound production unit, and the first sound outlet is provided on the side surface;
• the display module is located in the first mounting cavity, and the transparent cover plate is circumferentially sealed and fitted with the sealing surface;
• a side of the partition plate facing away from the first mounting cavity has a mounting surface that is configured to be sealed and fitted with a side wall of the sound production unit located at a sound outlet surface side, the mounting surface is provided around the sound inlet, and the mounting surface has a predetermined angle with the plane on which the display screen is located.