Low noise optical disk drive

Claim 2

A low noise optical disk drive comprising: a top cover; a bottom base, and a containing space being defined between the top cover and the bottom base; a playing mechanism assembled in the containing space and capable of being drawn out for holding a disk, wherein when the playing mechanism is holding the disk in an operating state, the rotation of the disk generates a main air current within the containing space and therefore produces noise; and a noise absorbing device installed in the containing space on a bottom surface of the top, cover opposite the playing mechanism for absorbing the noise produced from the main air current, the noise absorbing device comprising a plurality of triangular-shaped protruding teeth spaced at intervals and protruding into the containing space; wherein when the main air current flows through the noise absorbing device, the main air current is divided into a plurality of air currents of different directions by the protruding teeth so as to reduce the noise.

Claim 3

The low noise optical disk drive of claim 1 , wherein the noise absorbing device is formed of a high polymer foaming material so as to absorb the mechanical noise and the noise due to air currents.

Claim 4

The low noise optical disk drive of claim 1 , wherein a portion of the protruding teeth extend towards the playing mechanism and have tips close to the playing mechanism so as to absorb the mechanical noise when the playing mechanism is in the operating state.

Claim 5

A low noise optical disk drive comprising: a top cover; a bottom base, and a containing space being defined between the top cover and the bottom base; a playing mechanism assembled in the containing space and capable of being drawn out for holding a disk, wherein when the playing mechanism is holding the disk in an operating state, the rotation of the disk generates a main air current within the containing space and therefore produces noise; and a noise absorbing device installed in the containing space on a bottom surface of the top cover opposite the playing mechanism for absorbing the noise produced from the main air current, the noise absorbing device comprising a plurality of triangular-prism-shaped protruding teeth spaced at intervals and protruding into the containing space; wherein when the main air current flows through the noise absorbing device, the main air current is divided into a plurality of air currents of different directions by the protruding teeth so as to reduce the noise.

Claim 6

A low noise optical disk drive comprising: a top cover; a bottom base, and a containing space being defined between the top cover and the bottom base; a playing mechanism assembled in the containing space and capable of being drawn out for holding a disk, wherein when the playing mechanism is holding the disk in an operating state, the rotation of the disk generates a main air current within the containing space and therefore produces noise; and a noise absorbing device installed in the containing space on a bottom surface of the top cover opposite the playing mechanism for absorbing the noise produced from the main air current, the noise absorbing device comprising a plurality of triangular-prism-shaped protruding teeth spaced at intervals and protruding into the containing space; wherein when the main air current flows through the noise absorbing device, the main air current is divided into a plurality of air currents of different directions by the protruding teeth so as to reduce the noise.

Claim 7

The low noise optical disk drive of claim 4 , wherein the noise absorbing device is formed of a high polymer foaming material so as to absorb the mechanical noise and the noise due to air currents.

Claim 8

The low noise optical disk drive of claim 4 , wherein a of the protruding teeth extend towards the playing mechanism and have tips close to the playing mechanism so as to absorb the mechanical noise when the playing mechanism is in the operating state.