Vane integration into motor hub to enhance CD cooling

• US 7,334,243 B2
• Filed: 08/30/2005
• Issued: 02/19/2008
• Est. Priority Date: 08/30/2005
• Status: Expired due to Fees

• Current Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Original Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Inventors: Wilson, Scott E., Chengalva, Suresh K., Myers, Bruce A.
• Primary Examiner(s): Chen; Tianjie
• Application Number:
  US11/214,634
• Publication Number:
  US 20070050794A1
• Time in Patent Office: 903 Days
• Field of Search: 720/649, 360/97.02, 360/97.03, 360/97.04, 360/99.12, 360/98.07
• US Class Current: 720/649
• CPC Class Codes: G11B 17/028 of discs rotating during transducing operation
• CPC Class Codes: G11B 17/0282 by means provided on the turntable
• CPC Class Codes: G11B 33/142 by air cooling

Abstract

The present invention relates to the cooling of electronic components such as CD or DVD players and recorders and the disc or discs within. Specifically, the present invention relates to the internal cooling of a disc playing or recording device and the disc or discs within.

Claims

1. A disc player for playing at least one of a compact disc, a digital video disc, and a laser disc, the disc player comprising:

a frame;

a motor supported by the frame and configured to rotate the disc;

a hub coupled to the motor and configured to support the disc, the hub including an upper surface adjacent to the disc and a lower surface, the lower surface including a vane extending downward, the vane configured to cool at least one of the disc and the disc player, wherein the hub includes an off-center aperture; and

a reader supported by the frame and configured to read the disc.

2. The disc player of claim 1, further comprising a recorder configured to record information on the disc.

3. The disc player of claim 1, wherein the hub is constructed of plastic.

4. The disc player of claim 1, wherein the hub includes a plurality of vanes.

5. The disc player of claim 1, wherein the vane is substantially perpendicular to the lower surface.

6. The disc player of claim 1, wherein the vane is coupled to the hub at an angle less than 90 degrees.

7. The disc player of claim 1, wherein hub includes a center and the vane extends radially outward from the center of the hub.

8. The disc player of claim 1, wherein the vane includes a curved portion.

9. The disc player of claim 1, wherein the upper surface of the hub includes a raised center section configured to support the disc.

10. The disc player of claim 1, further comprising first and second baffles coupled to the frame and configured to direct airflow toward the reader.

11. A method of cooling internal components of a disc operating apparatus, the method comprising the steps of:

providing a frame, a motor supported by the frame, and a hub coupled to the motor and configured to support a disc, the hub including an upper surface adjacent to the disc and a lower surface, the lower surface including a vane extending downward, and a reader supported by the frame and configured to read the disc, wherein the hub includes a plurality of off-center apertures configured to promote airflow between the disc and the hub; and

actuating the motor to rotate the hub.

12. The method of claim 11, wherein the providing step includes having a hub including a plurality of vanes.

13. The method of claim 11, further comprising the step of providing a baffle configured to channel airflow toward the reader, the baffle positioned on the frame between the hub and the motor.

14. A hub for a disc operating apparatus, the hub configured to support and rotate a disc positioned on the hub, the hub including:

a first surface configured to support the disc;

a second surface opposing the first surface;

a plurality of vanes coupled to the second surface; and

a plurality of off-center apertures.

15. The hub of claim 14, wherein the hub is constructed of plastic.

16. The hub of claim 14, further comprising a raised central portion on the first surface.

17. The hub of claim 14, wherein a first vane of the plurality of vanes defines a first axis and a second vane of the plurality of vanes defines a second axis, the first axis perpendicular to the second axis.

18. The hub of claim 14, wherein each of the plurality of vanes has a curved profile.

19. A disc player for playing at least one of a compact disc, a digital video disc, and a laser disc, the disc player comprising:

a motor configured to rotate the disc;

a hub coupled to the motor and configured to support the disc, the hub including an upper surface adjacent to the disc and a lower surface, the lower surface including a vane extending downward, the vane configured to cool the disc and the disc player, wherein the hub includes an off-center aperture;

a frame positioned adjacent the lower surface of the hub, the frame including a first baffle configured to direct airflow to cool at least one of the disc and the disc player; and

a reader supported by the frame and configured to read the disc.

20. The disc player of claim 19, wherein the frame includes a second baffle configured to cooperate with the first baffle to form a channel, the channel configured to direct airflow toward the reader.

21. The disc player of claim 19, wherein the hub includes a plurality of off-center apertures.