CN1641781A - Optical disk driver - Google Patents
Optical disk driver Download PDFInfo
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- CN1641781A CN1641781A CN 200410015608 CN200410015608A CN1641781A CN 1641781 A CN1641781 A CN 1641781A CN 200410015608 CN200410015608 CN 200410015608 CN 200410015608 A CN200410015608 A CN 200410015608A CN 1641781 A CN1641781 A CN 1641781A
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- light picker
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Abstract
The invention relates to CD driver. It comprises cassette mechanism that is equipped light capturing device baseboard, loading mechanism that is set on the cassette mechanism to supply the power of entering and seceding operation, rotating structure that is set on the light capturing baseboard and can move following the aiming axis and record or read data from the disc, and transmission structure that is set on cassette mechanism to supply the power of transmitting the light capturing device. It structure of the invention can decrease the quantity of the whole components of the CD driver, especially the components on the light capturing baseboard. And the moving of light capturing device baseboard would be more easy and easily to keep the flatness of the light capturing baseboard. Thus, the inclination modification operation would be decreased.
Description
(1) technical field
The invention relates to CD drive, refer in particular to about simplifying a kind of CD drive of the parts on the light picker substrate.
(2) background technology
Fig. 1 is the structural plan figure of CD drive in the middle of the prior art.As shown in the figure, core frame 1 has constituted the skeleton of disc drives.There is the breakthrough part that is roughly 4 dihedrals in the central authorities of above-mentioned core frame 1, and light picker substrate 3 is set on above-mentioned breakthrough part.
The rearward end of above-mentioned light picker substrate 3 is connected on the above-mentioned core frame 1 by shock-resistant member 5.Above-mentioned shock-resistant member 5 is made by resilient material, when its effect is to be connected to light picker substrate 3 on the core frame 1, can also block the vibrations between them and the propagation of noise.
Above-mentioned light picker substrate 3 is provided with the rotating shaft motor 7 that is used for rotary CD.The upper end of above-mentioned rotating shaft motor 7 is provided with and is used for loading optical disk and the rotating disk 8 that can be rotated under the drive of rotating shaft motor 7.Above-mentioned light picker substrate 3 is provided with light picker 9, can obtain the guiding of guide shaft 10.Above-mentioned light picker 9 is to the signal recording surface illumination beam of CD, just can tracer signal or the signal of reading and recording.
Above-mentioned light picker 9 is along with the power that above-mentioned guide shaft 10 moves provides by transferring motor 11.Above-mentioned handover motor 11 be arranged on as shown in the figure above-mentioned light picker substrate 3 below.The rotating shaft coaxle of driven wheel 12 and above-mentioned handover motor 11 be arranged on above-mentioned light picker substrate 3 above, and, also be provided with and above-mentioned driven wheel 12 neutral gear 13 of interlock mutually.Pinion wheel 14 and above-mentioned neutral gear 13 interlock mutually are arranged on the above-mentioned light picker substrate 3.The gear part 14 ' of above-mentioned pinion wheel 14 and gear bar 15 interlock mutually that is arranged on above-mentioned light picker 9 rely on the driving force of transferring motor 11 to move above-mentioned light picker 9.The bottom of above-mentioned handover motor 11 is provided with transfers substrate 16.Above-mentioned handover substrate 16 is provided with the various parts of the driving that is used to realize above-mentioned handover motor 11.
In addition, the leading portion of above-mentioned light picker substrate 3 is connected with elevation base plate 18.Also be provided with shock-resistant member 5 ' between above-mentioned elevation base plate 18 and the light picker substrate 3, when the above-mentioned light of connection picks up substrate and elevation base plate 18, also prevent the propagation of noise and vibrations.
The rearward end two ends of above-mentioned elevation base plate 18 are provided with rotary middle spindle 19.Above-mentioned rotary middle spindle 19 is inserted into the rotation center that above-mentioned core frame 1 becomes the front end lifting of elevation base plate 18.The front end of above-mentioned elevation base plate 18 is provided with interlock projection 19 ', can be guided along the lifter cam 28 of the following lifting guide 25 that will talk about.
Then, the front end of above-mentioned core frame 1 be provided with provide CD to be written into driving force be written into motor 20.The above-mentioned driving force that is written into motor 20 is to be communicated to drive pulley 22 by travelling belt 21.The gear part and driven wheel 23 interlock mutually that are provided with on the above-mentioned drive pulley 22.Bar shaped driven wheel portion 24 on the above-mentioned driven wheel 23 and fixing disc also are written into CD and go out the gear bar interlock mutually that is provided with to the pallet.
In addition, follower gear bar 27 interlock mutually of the gear part (not shown) under the above-mentioned driven wheel 23 and lifting guide 25.Above-mentioned lifting guide 25 is at the front end that above-mentioned pick-up substrate 3 is risen in operation the later stage that is written into of CD, CD carry the descend front end of above-mentioned light picker substrate 3 of operation initial stage, thereby can prevent to be written into when CD the phase mutual friction between above-mentioned rotating disk 8 and the pallet.
For this reason, on the above-mentioned lifting guide 25 lifter cam 28 is set.Import above-mentioned interlock projection 19 ' on the above-mentioned lifter cam 28.One side of above-mentioned lifting guide 25 is provided with and drives projection 27 '.Above-mentioned driving projection 27 ' and the guiding groove that is arranged on below the pallet, interlock together when above-mentioned CD of the later stage that CD is written into arrives ad-hoc location, the follower gear bar 27 of above-mentioned lifting guide 25 will be with gear part (not shown) under the above-mentioned driven wheel 23 thus interlock obtains power mutually.
On the above-mentioned core frame 1, as shown in Figure 1, be provided with and be written into substrate 29, be written into substrate 29 and be provided with the parts that control is written into the driving of motor 20 with above-mentioned motor 20 position adjacent that are written into.Above-mentionedly be written into substrate 29 as shown in the figure, be arranged on a following side of core frame 1.
Possess in the middle of the prior art of said structure, be written under motor 20 drives, pallet is come in and gone out and in the inside and outside of device CD is written into, CD be written into end the time, be written into substrate 29 signal is conveyed to handover substrate 16, thereby can drive above-mentioned handover motor 11.
And, under the driving of above-mentioned handover motor 11, when light picker 9 is positioned at week, drive above-mentioned rotating shaft motor 7 rotary CDs, then by above-mentioned light picker 9 in the signal recording surface tracer signal of CD or read the signal that writes down on the CD.
But there are the following problems for above-mentioned prior art.
That is, in the middle of the prior art, light picker substrate 3 is provided with rotating shaft motor 8, and light picker 9 is transferred motor 11, various gears, as; Driven wheel 12, neutral gear 13, pinion wheel 14 etc.Therefore on the light picker 3 just because be provided with this many parts, so be difficult to realize the smooth of surface, promptly be difficult to effectively adjust.
And above-mentioned light picker substrate 3 to operate with being written into and carrying of CD, and its front end is along with above-mentioned elevation base plate 18 is carried out lifting, also together lifting under the guiding of lifting guide 25.Therefore, on the above-mentioned light picker substrate 3 more parts are set, and relative size is also bigger, in descending operation, just needs a lot of power so.
In addition, the main substrate on the existing CD drive on being provided with core frame 1 (not shown), also be provided with the handover substrate 16 that is used to realize above-mentioned handover motor 11 drivings, be used to realize the substrate of rotating shaft motor 7 drivings, and be used to realize to be written into motor 20 driving be written into many substrates such as substrate 29, therefore not only increase the quantity of parts on the whole, and also needed link and electric wire etc. between them.
(3) summary of the invention
To the objective of the invention is in order addressing the above problem, will to realize simplifying a kind of CD drive of light picker board structure exactly.
Another object of the present invention is exactly to reduce the quantity of all parts that constitute CD drive.
To achieve these goals, the invention is characterized in and comprise:
Core frame; Be provided with the light picker substrate above, along with the turnover of CD operation, an end of described light picker substrate can lifting; Be written into structural portion, be arranged on the described core frame, CD turnover operation required drive is provided; Rotational structure portion is arranged on the described light picker substrate, after CD is written into, and rotary CD; Light picker is arranged on the described light picker substrate, along with leading axle moves, and can be on the CD of described rotational structure portion rotation recorded information or read information; Transfer structural portion, be arranged on the described core frame, the power of transferring described light picker is provided.
The power that described handover structural portion expresses passes to the gear bar that is arranged on described light picker one side, can transfer light picker.
Described handover structural portion includes the handover motor, and a plurality of wheel chains that the driving force of described handover motor are communicated to described gear bar.The final gear of described a plurality of wheel chains is written at CD under the state of EO, with the gear bar interlock mutually of the above, passes on power then.
The final gear of described wheel chain is connected with the gear of its front by the coupling shaft with certain-length, and has certain height poor.
Described core frame is provided with a motor base plate, is provided with above to be used to operate the described parts that are written into structural portion and transfer structural portion of control.
Effect of the present invention:
Aforesaid disc drives of the present invention has reduced the number of components that is provided with on the light picker substrate relatively.That is, general be used for the drive source that light picker moves and be used for structure that power passes on all being arranged on light and picking up substrate, but the present invention but is arranged on these parts on the core frame.Therefore, the area and the weight of light picker substrate have been reduced in the middle of the present invention relatively.Like this, the lifting of light picker substrate will be more prone to.
And, because the number of components that is arranged on the light picker substrate has reduced relatively, so, just be easier to keep light to pick up the flatness of substrate relatively.Therefore, the light beam of the light picker that is provided with on the light picker substrate will vertical irradiation to the signal recording surface of CD, thereby can reduce the necessity of tilt adjustments.
In addition, provide CD to be written in the middle of the present invention the handover motor that is written into motor and provides light to pick up mobile power of power to be arranged on the core frame all, so the engine substrate of controller drives just can be set to one.Therefore, the signal between them is passed on no longer needs to be provided with in addition connecting line and electric wire, thereby but also can obtain the whole effect that number of substrates reduces number of components that reduces.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
(4) description of drawings
Fig. 1 is the structural plan figure of CD drive in the middle of the prior art;
Fig. 2 is the structural drawing of the embodiment of CD drive of the present invention;
Fig. 3 is the planimetric map of the light picker substrate of the formation embodiment of the invention;
Fig. 4 is the side sketch map of the main composition of the embodiment of the invention;
Fig. 5 a is the structure of the handover structural portion that constitutes the embodiment of the invention front structural drawing from main substrate;
Fig. 5 b is the structure of the handover structural portion that constitutes the embodiment of the invention side side structure figure from main substrate.
The symbol description of major part in the accompanying drawing:
30, core frame 32, through-hole section
34, light picker substrate 36,36 ', shock-resistant member
38, rotating shaft motor 40, rotating disk
42, light picker 44, leading axle
46, gear bar 48 is transferred motor
50, driven wheel 52, neutral gear
54, follower gear 55, coupling shaft
56, pinion wheel 58, elevation base plate
59, rotary middle spindle 59 ', interlock projection
60, be written into motor 62, drive pulley
64, driven wheel 68, lifting guide
70, lifter cam 74, engine substrate
(5) embodiment
Embodiment to CD drive of the present invention is elaborated below with reference to accompanying drawings.
Fig. 2 is the structural drawing of the embodiment of disc drives of the present invention.Fig. 3 is the planimetric map of the light picker substrate of the formation embodiment of the invention.Fig. 4 is the side sketch map of the main composition of the embodiment of the invention.Fig. 5 is the structural drawing of the handover structural portion of the formation embodiment of the invention.
As shown in the figure, core frame 30 has constituted the skeleton of disc drives, sees 4 long before and after being roughly dihedrals on the planimetric map.There is the through-hole section 32 that is roughly 4 dihedrals in the central authorities of above-mentioned core frame 30, on above-mentioned through-hole section 32 light picker substrate 34 are set.
The rearward end of above-mentioned light picker substrate 34 is connected on the above-mentioned core frame 30 by shock-resistant member 36.Above-mentioned shock-resistant member 36 is made by resilient material, when its effect is to be connected to light picker substrate 34 on the core frame 30, can also block the vibrations between them and the propagation of noise.
Below rotational structure of the present invention portion is explained.Above-mentioned light picker substrate 34 leading portions one side is provided with the rotating shaft motor 38 that is used for rotary CD.The upper end of above-mentioned rotating shaft motor 38 is provided with and is used for loading optical disk and the rotating disk 40 that can be rotated under the drive of rotating shaft motor 38.Behind fixing disc on the above-mentioned rotating disk 40, will under the drive of above-mentioned rotating shaft motor 38, one rotate.
The inboard of the above-mentioned light picker substrate 34 of up/down perforation is provided with light picker window 41.Light picker 42 moves along above-mentioned light picker window 41.Above-mentioned light picker 42 moves under the guiding of leading axle 44, leading axle 44 at the two ends of above-mentioned light picker window 41 along the direction setting of length.One side of above-mentioned light picker 42 is provided with gear bar 46.The front end of said gear bar 46 need be provided with how much higher than the side of above-mentioned light picker 42.
Below, will the handover structural portion of above-mentioned light picker 42 be described.The handover power of above-mentioned light picker 42 provides by transferring motor 48.Above-mentioned handover motor 48 is arranged on the above-mentioned core frame 30.Above-mentioned handover motor 48 be arranged on above-mentioned core frame 30 below, above its turning axle also can protrude through, perhaps the part of its main body also can protrude through above-mentioned core frame 30 above.
The turning axle of above-mentioned handover motor 48 is provided with driven wheel 50.Neutral gear 52 and the interlock mutually of above-mentioned driven wheel 50, and be arranged on the above-mentioned core frame 30.The gear wheel portion interlock mutually of above-mentioned driven wheel 50 and the outer peripheral face that is arranged on neutral gear 52.Also be provided with in addition and the pinion wheel of above-mentioned neutral gear 52 follower gear 54 of interlock mutually.The rotation center of above-mentioned follower gear 54 is provided with coupling shaft 55, and above-mentioned coupling shaft is provided with pinion wheel 56.Above-mentioned pinion wheel 56 is to pass on the final gear of the driving force of handover motor 48 to the wheel chain of said gear bar 46.Above-mentioned pinion wheel 56 is complied with above-mentioned coupling shaft 55, and exists certain height poor between the above-mentioned follower gear 54.
The front end of above-mentioned light picker substrate 34 is connected with elevation base plate 58 by shock-resistant member 36 '.The rotary middle spindle 59 of the both sides, rear end of above-mentioned elevation base plate 58 is inserted into above-mentioned core frame 30, forms rotation center.The front end of above-mentioned elevation base plate 58 is provided with interlock projection 59 '.
Below the structural portion that is written into of the present invention is explained.The front end of above-mentioned core frame 30 is provided with and is written into motor 60.Above-mentionedly be written into the power that motor 60 provides CD to be written into.In the middle of the present embodiment, omission is used for the pallet and the formation that is used for CD is fixed to the clamp device on the rotating disk 40 of optical disk transfer for the convenience of charting.The above-mentioned motor 60 that is written into provides the power of mobile above-mentioned pallet and the power of the above-mentioned light picker substrate 34 of lifting.
The above-mentioned power that is written into motor 60 and provides is communicated to drive pulley 62 by travelling belt 63.Above-mentioned drive pulley 62 is provided with gear part (not shown), also is provided with the driven wheel 64 of interlock mutually with said gear portion in addition.Above-mentioned driven wheel 64 is provided with rack drives gear 66, the gear bar interlock mutually below being arranged on pallet.
The front end setting of above-mentioned core frame 30 is by lifting guide 68, and above-mentioned lifting guide 68 obtains the above-mentioned driving force that is written into motor 60 by follower gear bar 72 and moves, thereby can the front end of lifting light picker substrate 34 corresponding to being written into of CD.For this reason, above-mentioned lifting guide 68 is provided with lifter cam 70, is used to guide above-mentioned interlock projection 59 '.
In addition, above-mentioned core frame 30 is provided with engine substrate 74, and engine substrate 74 is provided with the above-mentioned handover motor 48 of control and is written into the parts of the operation of motor 60.Above-mentioned engine substrate 74 be arranged on above-mentioned core frame 30 below, at above-mentioned handover motor 48 be written on the position between the motor 60.Like this, be because above-mentioned handover motor 48 all is to have put on core frame 30 with being written into motor 60 with transferring motor 48 with the reason that the control assembly that is written into motor 60 all is set to an engine substrate 74.
To the effect of CD drive of the present invention with said structure be elaborated below.
Use CD drive earlier CD to be written into.Therefore at first just need be with the outside of tray conveying to CD drive, i.e. load-out location.That is, operate the above-mentioned motor 60 that is written into, when the rack drives gear 66 of driven wheel 64 was communicated to the gear bar of pallet with power, pallet will move on the load-out location.
The user is installed to pallet with CD, and the input be written into signal, drive the above-mentioned motor 60 that is written into, pallet will move to and be written into the position.Above-mentioned pallet moves in the middle of the process that is written into the position, above-mentioned lifting guide 68 will move under the driving force effect that is written into motor 60, simultaneously, above-mentioned interlock projection 59 ' obtains the guiding of lifter cam 70, and the front end of above-mentioned elevation base plate 58 will rise.
Like this, the front end of above-mentioned light picker substrate 34 also can rise together.Along with the front end rising of above-mentioned light picker substrate 34, said gear bar 46 and above-mentioned pinion wheel 56 will be interlocked.That is, when above-mentioned light picker substrate 34 descended, said gear bar 46 and the not interlock mutually of above-mentioned pinion wheel 56 can not be passed on the state of power, then, have now just become between gear bar 46 and the pinion wheel 56 and can pass on the state of power.
After being written into operation and finishing, will pass in the engine substrate 74 and be written into end signal, drive above-mentioned handover motor 48 then, the power that above-mentioned mobile motor 48 provides, by driven wheel 50, neutral gear 52, follower gear 54 and pinion wheel 56 are communicated to said gear bar 46.Therefore, above-mentioned light picker 42 will move along above-mentioned leading axle 44.
At first at the operation initial stage, under the driving force effect of above-mentioned handover motor 48, above-mentioned light picker 42 moves to the interior week of CD, perceives light picker 42 and moves to CD after interior week, will drive above-mentioned rotating shaft motor 38.When driving above-mentioned rotating shaft motor 38, rotating disk 40 will rotate together with CD.
Like this, in the CD rotation, above-mentioned light picker 42 radial direction along CD under the driving of above-mentioned handover motor 48 moves, so just can be with light beam irradiates to the signal recording surface of CD, thus can tracer signal or the signal of reading and recording.
According to the disc drives of the present invention with said structure, the size of light picker 42 is less relatively, and the parts that are arranged on the light picker substrate 34 have also tailed off.Therefore, the flatness of light picker substrate 34 can be accurately kept, thereby the effect of tilt adjustments can be effectively improved.In addition, in terms of overall, because the quantity of component parts has reduced, so the manufacturing cost of CD drive has also just reduced.
Though the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, should understand and wherein can make variations and modifications and do not break away from the present invention in a broad sense, so be not as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the distortion of the above embodiment.
Claims (5)
1, a kind of CD drive is characterized in that comprising:
Core frame is provided with the light picker substrate above, and along with the turnover of CD operation, an end of described light picker substrate can lifting;
Be written into structural portion, be arranged on the described core frame, CD turnover operation required drive is provided;
Rotational structure portion is arranged on the described light picker substrate, after CD is written into, and rotary CD;
Light picker is arranged on the described light picker substrate, can move along with leading axle, and can be on the CD of described rotational structure portion rotation recorded information or read information;
Transfer structural portion, be arranged on the described core frame, the power of transferring described light picker is provided.
2, CD drive as claimed in claim 1 is characterized in that:
The power that described handover structural portion expresses passes to the gear bar that is arranged on described light picker one side, can transfer light picker.
3, CD drive as claimed in claim 2 is characterized in that:
Described handover structural portion includes the handover motor, and a plurality of wheel chains that the driving force of described handover motor are communicated to described gear bar, the final gear of described a plurality of wheel chains is written at CD under the state of EO, with the interlock mutually of described gear bar, passes on power then.
4, CD drive as claimed in claim 3 is characterized in that:
The final gear of described wheel chain is connected with the gear of its front by the coupling shaft with certain-length, and has certain height poor.
5, CD drive as claimed in claim 1 is characterized in that:
Described core frame is provided with a motor base plate, is provided with above to be used to operate the described parts that are written into structural portion and transfer structural portion of control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410015608 CN1641781A (en) | 2004-01-02 | 2004-01-02 | Optical disk driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410015608 CN1641781A (en) | 2004-01-02 | 2004-01-02 | Optical disk driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1641781A true CN1641781A (en) | 2005-07-20 |
Family
ID=34868016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410015608 Pending CN1641781A (en) | 2004-01-02 | 2004-01-02 | Optical disk driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1641781A (en) |
-
2004
- 2004-01-02 CN CN 200410015608 patent/CN1641781A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |