CN1892885A - Disc recording/reading apparatus - Google Patents
Disc recording/reading apparatus Download PDFInfo
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- CN1892885A CN1892885A CN 200510083239 CN200510083239A CN1892885A CN 1892885 A CN1892885 A CN 1892885A CN 200510083239 CN200510083239 CN 200510083239 CN 200510083239 A CN200510083239 A CN 200510083239A CN 1892885 A CN1892885 A CN 1892885A
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- disc
- groove
- tray
- reading apparatus
- read
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Abstract
Being in use for recording/reading disk sheet, the recording/reading equipment includes a case, a tray, a rotary table and a reading/writing table. Located in the case, the tray possesses a groove in use for placing disk sheet, and a part extended from the groove. Being extended to one side in front of the tray, the extended groove possesses an opening run through the tray. Being positioned under the tray, the rotary table drives rotation of disk sheet. Rotation airflow under the disk sheet is suitable to runoff from the opening at the extended groove in order to restrain noise caused by disturbance of airflow as well as vibration caused by rotating disk.
Description
Technical field
The invention relates to a kind of disc recording/reading apparatus, and particularly relevant for a kind of disc recording/reading apparatus that reduces the pneumatic noise of disc rotation.
Background technology
Discs have low price, easy to carry, storage volume big, preserve easily, storage life limit for length, with low costly be difficult for advantage such as infringement with data, so discs general traditional magnetic Storage Media and become the indispensable a kind of light memory medium of modern (optical storage medium) of replacement gradually at present.Because being extensive use of of discs, the CD-ROM drive that therefore reads the discs data also becomes electronic product common in the life.
Please refer to Figure 1A, it illustrates the structural representation of known a kind of CD-ROM drive.Known CD-ROM drive 100 comprises a casing 110, a pallet (tray) 120, a read module 130 and a clamping part 140.Tray 120, read module 130 and clamping part 140 all are disposed at casing 110 inside.Wherein, casing 110 is suitable for protecting the assembly of CD-ROM drive 100 inside.Pallet 120 is suitable for withdrawing from carrying disc sheet 10 from casing 110.Read module 130 is suitable for reading the data on the discs 10, and read module 130 comprises a slide rail 132 and an optical read head (optical pick-up) 134.In addition, clamping part 140 and rotating disk (not illustrating among the figure) are jointly in order to clamp discs 10, so that rotating disk can drive discs 10 rotations.
When user's desire uses CD-ROM drive 100 to read data on the discs 10, at first, need discs 10 is placed on the pallet 120, and make pallet 120 and its discs of being carried 10 slip into the inside of casing 110.Then, rotating disk can rise, and jointly discs 10 is clamped with clamping part 140.Then, rotating disk drives discs 10 again and rotates with suitable rotating speed, and optical read head 134 then moves along slide rail 132, to read the data on the discs 10.
When discs 10 is made high-speed rotation, 10000 rev/mins of the commentaries on classics scooters of discs 10, this moment, CD-ROM drive 100 interior meetings produced an air-flow.Yet the flow velocity of this air-flow each zone in CD-ROM drive 100 is different, can cause CD-ROM drive 100 pressure inside inequalities.Figure 1B illustrates the vertical view in CD player when running of Figure 1A.The pressure in a that is indicated among Figure 1B, b, c, d zone is greater than other zone that does not indicate.Because pallet 120 rear areas have bigger space, and the rear of pallet 120 has an opening and reads data on the discs 10 for optical read head 134, and therefore, the air-flow that results from pallet 120 rears can be discharged by the space or the above-mentioned opening at rear.But, relatively just can cause the pressure in pallet a zone, 120 the place ahead and b zone to be higher than the pressure in pallet c zone, 120 rear and d zone.And the inhomogeneous flow perturbation that can form of CD-ROM drive 100 internal pressures, and then the vibration can cause discs 10 rotations time the and produce bigger noise.
In order to solve the aforesaid drawbacks, known still have a kind of CD-ROM drive design, can improve the problem of internal pressure inequality.Fig. 2 A illustrates the structural representation of known another kind of CD-ROM drive.Please refer to Fig. 2 A, CD-ROM drive 200 is similar to CD-ROM drive 100, and different being in the leading edge 220a of the tray 220 of CD-ROM drive 200 has two guide holes 222, can allow the air-flow in pallet 220 the place aheads flow out from these two guide holes 222, and be poor to reduce CD-ROM drive 200 pressure inside.Fig. 2 B illustrates the vertical view in CD player when running of Fig. 2 A.Please refer to Fig. 2 B, can find out that by Fig. 2 B a zone of CD-ROM drive 200 inside and the air-flow in b zone can flow out via guide hole 222, so the pressure in a zone and b zone can be reduced.Fig. 2 C illustrates the sectional view of CD player when running of Fig. 2 B along profile line A-B.Please refer to Fig. 2 C, can find out that by Fig. 2 C the air-flow in pallet 220 the place aheads can be discharged by guide hole 222, to reduce the pressure in pallet 220 the place aheads.Yet because CD player when running, discs 10 is made between discs 10 and the pallet 220 to have a spacing by the rotating disk bracketing that makes progress, therefore when discs 10 is rotated, and also can be in the below of discs 10 generation air-flow.But guide hole 222 can only allow the air-flow of discs 10 tops flow out, and the air-flow of discs 10 belows still can't be derived, the pressure that therefore can form discs 10 upper and lowers is inhomogeneous, cause the disturbance of air-flow,, and produce bigger noise so the vibration still can make discs 10 rotation the time becomes big.
Summary of the invention
In view of this, purpose of the present invention is providing a kind of disc recording/reading apparatus that can effectively reduce the noise and vibration in disc when rotation.
Based on above-mentioned purpose or other purpose, the present invention proposes a kind of disc recording/reading apparatus, in order to record/read a disc, it is characterized in that this disc recording/reading apparatus comprises:
One casing;
One tray is arranged in this casing, and this tray has a groove and a groove extension, and this groove is in order to placing this disc, and this groove extension is a side that is extended to this pallet front end by this groove, and this groove extension has an opening again and runs through this pallet;
One rotating disk is positioned at this tray below, and in order to drive this disc rotation, wherein this at least one swirling eddy in disc below is suitable for being flowed out by the opening of this groove extension; And
One read-write cell is arranged in this casing, in order to record/the read data on this disc.
According to the described disc recording/reading apparatus of preferred embodiment of the present invention, wherein at least one swirling eddy in disc top is suitable for being flowed out by the opening of groove extension.
According to the described disc recording/reading apparatus of preferred embodiment of the present invention, wherein tray has one first leading edge and one second leading edge, and the groove extension for example extends to first leading edge by groove.
According to the described disc recording/reading apparatus of preferred embodiment of the present invention, wherein tray for example also comprises a guide hole, is arranged in second leading edge of tray, and at least one swirling eddy in disc top is suitable for being flowed out by guide hole.
According to the described disc recording/reading apparatus of preferred embodiment of the present invention, wherein read-write cell for example comprises a read/write head, and read/write head can send one first light signal to disc, and receives one second light signal by disc reflected.
Based on above-mentioned, the tray of disc recording/reading apparatus proposed by the invention has a groove extension, can flow out the noise and vibration in the time of therefore can reducing the disc rotation for the air-flow of disc top and/or below.
Description of drawings
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and conjunction with figs., elaborate as after, wherein:
Figure 1A illustrates a kind of structural representation of known CD-ROM drive.
Figure 1B illustrates the vertical view in known optical disc machine when running of Figure 1A.
Fig. 2 A illustrates the structural representation of another kind of known CD-ROM drive.
Fig. 2 B illustrates the vertical view in known optical disc machine when running of Fig. 2 A.
Fig. 2 C illustrates the sectional view of known optical disc machine when running of Fig. 2 B along profile line A-B.
Fig. 3 A illustrates the structural representation of the disc recording/reading apparatus of first embodiment of the invention.
Fig. 3 B illustrates the vertical view in disc recording/reading apparatus when running of Fig. 3 A.
When Fig. 3 C illustrates the disc record of Fig. 3 B/read shipment and does along the sectional view of profile line A-B.
Fig. 4 A illustrates the structural representation of the disc recording/reading apparatus of second embodiment of the invention.
Fig. 4 B illustrates the vertical view in disc recording/reading apparatus when running of Fig. 4 A.
When Fig. 4 C illustrates the disc record of Fig. 4 B/read shipment and does along profile line
Embodiment
First embodiment
Fig. 3 A illustrates the structural representation of the disc recording/reading apparatus of first embodiment of the invention.Please refer to Fig. 3 A, the disc recording/reading apparatus 300 of present embodiment for example is a CD-ROM drive, optical disk recording device, digital laser video disk machine, Video CD cd-rom recorder etc., and it can be in order to record/a read disc 400.Disc 400 has a rotation fixed part 410 and an information data area 420.Information data area 420 is positioned at the zone beyond the rotation fixed part 410, and disc 400 is the center rotation with rotation fixed part 410.Disc recording/reading apparatus 300 comprises a casing 310, a tray 320, a read-write cell 330 and a clamping part 340.Wherein, tray 320, read-write cell 330 and clamping part 340 all are disposed in the casing 310.
Tray 320 has a groove 322, a groove extension 324 and a guide hole 326.Groove 322 can be in order to holding tray sheet 400.The front end area of tray 320 can be divided into one first leading edge 328a and one second leading edge 328b by groove 322.In the present embodiment, groove extension 324 extends to the first leading edge 328a of tray 320 by groove 322, and guide hole 326 is positioned at the second leading edge 328b of tray 320, and the shape of guide hole 326 is trapezoidal or triangle near one, but also can be other shape.In addition, groove extension 324 has an opening again, and it runs through tray 320, and be connected in groove 322 outside, and this opening shape is trapezoidal near one.In another embodiment, the shape of the opening of groove extension 324 is for example near a triangle or be other shape.
Because the direction difference according to disc 400 rotations can cause the both sides of pallet front end to have different pressure sizes.Please refer to Fig. 3 B, vertical view when its disc recording/reading apparatus that illustrates Fig. 3 A operates, in the present embodiment, when when disc recording/reading apparatus 300 tops are down overlooked, disc 400 is to rotate in a clockwise direction, and the air-flow of its generation also can flow in a clockwise direction, thereby causes at the pressure in a zone of the pallet 320 front ends pressure greater than the b zone.In the present embodiment, the first above-mentioned leading edge 328a is the bigger a zone of pressure that is positioned at pallet 320 front ends, and groove extension 324 is to extend to the first leading edge 328a place by the groove 322 of placing disc 400.In other words, promptly groove extension 324 is the bigger sides of pressure that are positioned at pallet 320 front ends according to the direction of disc 400 rotations.And in other embodiments, pallet 320 also can have a pair of groove extension 324, and it is the both sides that extend to pallet 320 front ends from groove 322 respectively.
Please referring again to Fig. 3 A, read-write cell 330 comprises a read/write head 334 and a slide rail 332, this read/write head 334 for example is a laser read head, can be on slide rail 332 radially slidably reciprocating along disc 400, and can send the information data area 420 of one first light signal, and receive one second light signal of these information data area 420 reflections to disc 400.
Rotating disk (not showing) is positioned at the below of tray 320, and with the rotation fixed part 410 of clamping part 340 clamping discs 400, make rotating disk can drive disc 400 rotations.
When user's desire is used disc recording/reading apparatus 300 read-write discs 400, at first, need disc 400 is placed on the pallet 320, and make pallet 320 and its disc that is carried 400 slip into the inside of casing 310.Then, rotating disk can rise, and jointly the rotation fixed part 410 of disc 400 is clamped with clamping part 340.Generally speaking, clamping part 340 is an iron plate, and disposes a magnet in the rotating disk, and when rotating disk rose, clamping part 340 can be held by rotating disk, so the disc 400 between rotating disk and clamping part 340 can be clamped.Then, rotating disk drives disc 400 again and rotates with suitable rotating speed, and read/write head 332 can send the information data area 420 of one first light signal to disc 400, and receives one second light signal of these information data area 420 reflections.Move along slide rail 332 by read/write head 334, read while write unit 330 and receive a reading command or and write instruction, read data with record material on disc 400 or from disc 400.
What deserves to be mentioned is, when the user uses disc recording/reading apparatus 300 that data is write disc 400, read/write head 334 can send the information data area 420 of the light beam of higher-wattage to disc 400, so that the variation of the material recurring structure on the information data area 420 of disc 400 and note data.When the user used disc recording/reading apparatus 300 to read the data of disc 400, read/write head 334 can send the information data area 420 of the light beam of lower-wattage to disc 400, be received from again disc 400 information data area 420 reflected backs light signal and read data.
When Fig. 3 C illustrates the disc record of Fig. 3 B/read shipment and does along the sectional view of profile line A-B.Please be simultaneously with reference to Fig. 3 B and Fig. 3 C, when disc 400 rotated, the rotating speed of disc 400 for example can reach 10000 rev/mins, and this moment, disc recording/reading apparatus 300 inner meetings produced an air-flow.The pressure in a, the b that is indicated among Fig. 3 B, c, d zone is greater than other zone that does not indicate, and because in the present embodiment, and disc 400 is for turning clockwise, so the pressure in a zone is again than b zone height.In order to reduce the pressure in b zone, in the second leading edge 328b of tray 320, a guide hole 326 is arranged, can make above the disc 400 in the b zone air-flow thus guide hole 326 flow out, therefore can reduce b zone and other interregional pressure differential that does not indicate.In addition, in order effectively to reduce the pressure in a zone, one groove extension 324 extends to the first leading edge 328a of tray 320 by groove 322, and the air-flow that makes disc 400 tops in a zone groove extension 324 thus flows out, and therefore can reduce a zone and other interregional pressure differential that does not indicate.Also since the pressure in a zone greater than the b zone, groove extension 324 is designed to link to each other with groove 322, thus the air-flow of 400 belows of the disc in a zone also thus groove extension 324 flow out, so can reduce the pressure differential of the top and the below of disc 400.In other words, the swirling eddy that groove extension 324 can make disc 400 tops move toward a district is flowed out toward groove extension 324 by groove 322, and the swirling eddy that move toward a district while disc 400 belows is flowed out toward groove extension 324 by groove 322.In addition, guide hole 326 is arranged in the second leading edge 328b of tray 320, and the swirling eddy that disc 400 tops are moved toward the b district is flowed out toward guide hole 326 by groove 322.
From the above, groove extension 324 and guide hole 326 can air-guidings, make a, the b areal pressure of disc recording/reading apparatus 300 inside and the zone that all the other do not indicate differ less, the flow perturbation that is caused is less, so can lower the noise that produces because of air-flow.In addition, the top of disc 400 and the pressure differential of below also can be lowered, so the noise and vibration can reduce disc 400 rotation the time.
Second embodiment
Fig. 4 A illustrates the structural representation of the disc recording/reading apparatus of second embodiment of the invention.Fig. 4 B illustrates the vertical view in disc recording/reading apparatus when running of Fig. 4 A.When Fig. 4 C illustrates the disc record of Fig. 4 B/read shipment and does along the sectional view of profile line A-B.Please be simultaneously with reference to Fig. 4 A to 4C, the disc recording/reading apparatus 500 of present embodiment is similar to the disc recording/reading apparatus 300 of first embodiment.Different be in the design that does not have the guide hole 326 that is similar to disc recording/reading apparatus 300 in disc recording/reading apparatus 500.The tray 520 of disc recording/reading apparatus 500 has a groove 522 and a groove extension 524.The front end area of tray 520 is divided into one first leading edge 528a and one second leading edge 528b by groove 522.In the present embodiment, groove extension 524 is extended to the first leading edge 528a of tray 520 by groove 522.In addition, groove extension 524 has an opening again, for example is the approaching trapezoidal opening of a shape, and it runs through tray 520, and is connected in outside the groove 522.
When disc 400 high-speed rotation, in order to reduce the pressure in a zone, groove extension 524 is designed to be extended to by groove 522 the first leading edge 528a of tray 520, the air-flow that makes disc 400 tops in a zone and below groove extension 524 thus flows out, and therefore can reduce a zone and other interregional pressure differential that does not indicate and the top of disc 400 and the pressure differential of below.
From the above, groove extension 524 can air-guiding, makes a areal pressure of these disc recording/reading apparatus 500 inside and zone that all the other do not indicate differ less, and the flow perturbation that is caused is less, so can lower the noise that produces because of air-flow.In addition, the top of disc 400 and the pressure differential of below are lowered, so the noise and vibration can reduce disc 400 rotation the time.
In sum, disc recording/reading apparatus of the present invention has a groove extension, be arranged at the air-flow higher-pressure region that the disc rotation is produced, can be for of the air-flow from then on groove extension outflow of disc top with the below, poor to reduce the disc recording/reading apparatus pressure inside, therefore the vibration in the time of can lowering the disc rotation, and the generation of minimizing noise.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any personage who has the knack of this technology; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is when looking accompanying being as the criterion that claim defines.
Claims (5)
1. disc recording/reading apparatus in order to record/read a disc, is characterized in that this disc recording/reading apparatus comprises:
One casing;
One tray is arranged in this casing, and this tray has a groove and a groove extension, and this groove is in order to placing this disc, and this groove extension is a side that is extended to this pallet front end by this groove, and this groove extension has an opening again and runs through this pallet;
One rotating disk is positioned at this tray below, and in order to drive this disc rotation, wherein this at least one swirling eddy in disc below is suitable for being flowed out by the opening of this groove extension; And
One read-write cell is arranged in this casing, in order to record/the read data on this disc.
2. disc recording/reading apparatus as claimed in claim 1 is characterized in that, wherein this at least one swirling eddy in disc top is suitable for being flowed out by the opening of this groove extension.
3. disc recording/reading apparatus as claimed in claim 1 is characterized in that, wherein this tray has one first leading edge and one second leading edge, and this groove extension extends to this first leading edge by this groove.
4. disc recording/reading apparatus as claimed in claim 3 is characterized in that wherein this tray also comprises a guide hole, is arranged in this second leading edge of this tray, and this at least one swirling eddy in disc top is suitable for being flowed out by this guide hole.
5. disc recording/reading apparatus as claimed in claim 1 is characterized in that wherein this read-write cell comprises a read/write head, and this read/write head is to send one first light signal to this disc, and receives one second light signal by this disc reflected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510083239 CN1892885A (en) | 2005-07-07 | 2005-07-07 | Disc recording/reading apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510083239 CN1892885A (en) | 2005-07-07 | 2005-07-07 | Disc recording/reading apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1892885A true CN1892885A (en) | 2007-01-10 |
Family
ID=37597633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510083239 Pending CN1892885A (en) | 2005-07-07 | 2005-07-07 | Disc recording/reading apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1892885A (en) |
-
2005
- 2005-07-07 CN CN 200510083239 patent/CN1892885A/en active Pending
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |