Abstract: A heat conducting device, comprising a first heat conducting board and a heat conducting structure, the first heat conducting board comprising an upper heat conducting arm provided on one surface of the first heat conducting board, the heat conducting structure slidably abutting against the upper heat conducting arm of the first heat conducting board to form a contact surface through which heat transfer is realized, the heat conducting structure comprising a heat conducting surface, wherein the heat conducting structure is used to keep the relative position between the first heat conducting board and the heat conducting surface, allow the varying of the distance between the first heat conducting board and the heat conducting surface of the heat conducting structure through relative sliding between the upper heat conducting arm and the heat conducting structure.