Cooling Technology for the Optical Disc Drive using Air-flow induced by Disc Rotation

• FUJIMOTO Takayuki

  (株)日立製作所

• ISOSHIMA Nobuyuki

  (株)日立製作所

• TOYODA Hiroyuki

  (株)日立製作所

• YAMAUCHI Yoshiaki

  (株)日立製作所

• MATSUSHIMA Hitoshi

  (株)日立製作所

• NISHIDA Ikuo

  (株)日立LGデータストレージ

Bibliographic Information

Other Title

• C109 ディスク回転流を利用した光ディスクドライブの冷却技術

Abstract

Recently, data transfer rates of optical disc drives have been dramatically increasing. To obtain the high data transfer rates, disc rotation speed and laser power also need to be increased. Therefore, to develop the next generation optical disc drives effectively, enhanced cooling system of the optical pick-up unit which includes the laser diode is indispensable. The cooling performance of the pick-up unit is directly influenced by the inside airflow induced by the disc rotation. Tb maximize the effect of the airflow around the pick-up unit, we applied the combination of PIV (Particle Image Velocimetry) and CFD (Computational Fluid Dynamics) simulation. It was made clear that the tray opening near the pick-up unit increased the cooling performance effectively.

Journal

• Journal of the Visualization Society of Japan

  Journal of the Visualization Society of Japan 26 (Supplement2), 145-146, 2006

  The Visualization Society of Japan

Keywords

• Optical disc drive
• pick-up unit
• disc rotation
• airflow
• cooling performance

Details

• CRID: 1390282679594989824
• NII Article ID: 10018247333
• NII Article ID: 130003650413
• NII Book ID: AA11907562
• DOI: 10.3154/jvs.26.supplement2_145
• ISSN: 1884037X
• ISSN: 09164731
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed