Heat radiating structure and electronic device including same

An electronic device comprising:

• a housing comprising a front plate, a rear plate opposed to the front plate, a middle plate including a first surface toward the front plate and a second surface toward the rear plate, and a side member extending from the middle plate and including a through-hole opened outside the housing;
• a display exposed to an outside through the front plate, and seated on the first surface of the middle plate;
• a speaker structure disposed between the second surface of the middle plate and the rear plate,
• wherein the speaker structure comprises:
• a metal plate spaced apart from the second surface of the middle plate;
• a yoke disposed apart from the metal plate toward the rear plate;
• a first thermal interface material disposed between the metal plate and the yoke and attached to the metal plate and the yoke;
• a second thermal interface material disposed between the metal plate and the middle plate, and attached to the second surface of the middle plate by a bonding member;
• a vibration plate disposed apart from the yoke toward the rear plate, and disposed apart from the rear plate;
• and
• a magnet disposed between the yoke and the vibration plate.