Patent ID: 8438583
Filing Date: 2013-05-07
Classification: G11B

Abstract:
1. An electronic device comprising: a bottom cover; a circuit board mounted on the bottom cover; a driving module mounted on the bottom cover and having a rotating shaft adapted for supportively driving an optical disk to rotate; an electronic component fixed on the circuit board and generating heat during operation; a heat dissipating plate mounted on the circuit board, a first part of a main body of the heat dissipating plate thermally contacting the electronic component, the heat dissipating plate comprising two opposing elongated extending portions extending downwardly from a second part of the main body thereof towards the circuit board, an airflow channel being formed between the two extending portions under the heat dissipating plate, the airflow channel being aligned with the electronic component; and a top cover assembled to the bottom cover to cooperatively receive the circuit board, the driving module, and the heat dissipating plate therein, a plurality of through holes being defined in the top cover at a periphery of the rotating shaft; wherein when the optical disk is mounted on the rotating shaft and driven to rotate by the rotating shaft, air flows along the airflow channel to the first part of the main body of the heat dissipating plate and then through the through holes of the top cover to be exhausted out from the electronic device, thereby taking away heat of the heat dissipating plate absorbed from the electronic component, with the rotation of the optical disk facilitating such airflow.