CN1746987A - Optical drive - Google Patents
Optical drive Download PDFInfo
- Publication number
- CN1746987A CN1746987A CN 200410078537 CN200410078537A CN1746987A CN 1746987 A CN1746987 A CN 1746987A CN 200410078537 CN200410078537 CN 200410078537 CN 200410078537 A CN200410078537 A CN 200410078537A CN 1746987 A CN1746987 A CN 1746987A
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- Prior art keywords
- spindle motor
- base plate
- motor base
- breasting
- pad
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Abstract
An optical driver is composed of optical motor including main axis motor base plate, main axis motor, main guide bar and optical read / write head. It features that the main axis motor and its main guide bar are configured on base place of main axis motor and optical read / write head is set on main guide bar in mode of enabling to move along main guide bar at axial direction.
Description
Technical field
The present invention relates to a kind of CD-ROM drive, and be particularly related to a kind of bare engine module of CD-ROM drive.
Background technology
The hardware configuration of CD-ROM drive mainly can be divided into bare engine module (Mecha) and two parts of electronic control module.The major function of bare engine module is rotating disc and produces luminous point with the access data of optical disk.The composition assembly of bare engine module then comprises in order to the Spindle Motor (Spindle Motor) that drives the CD rotation and in order to produce the optical read/write head (Optical Pickup Head) of luminous point with the access data of optical disk.
Please be simultaneously with reference to Fig. 1 and Fig. 2.Fig. 1 is the decomposing schematic representation that shows bare engine module traditional in the CD-ROM drive, and Fig. 2 is the constitutional diagram of the bare engine module of displayed map 1.Traditional bare engine module 100 mainly includes carriage 102, Spindle Motor base plate 104, Spindle Motor 106, leading rod 108 and optical read/write head 110 in the CD-ROM drive.
The first leading rod pedestal 112a and the second leading rod pedestal 112b are locked in the both sides of carriage 102 respectively by the first locking screw 114a and the second locking screw 114b.Leading rod 108 is by being disposed on the carriage 102 with the first leading rod pedestal 112a, the second leading rod pedestal 112b first rod end 116a ccontaining respectively and fixedly leading rod 108 and the mode of the second rod end 116b.
Optical read/write head 110 is being disposed on the leading rod 108 along the axially movable mode of leading rod 108.For example, with the axle sleeve 118 socket leading rods 108 affixed, make the optical read/write head 110 can moving axially along leading rod 108 by axle sleeve 118 with optical read/write head 110.In addition, also dispose secondary guide rod 120 on the carriage 102, secondary guide rod 120 makes optical read/write head 110 be subjected to the CD of Spindle Motor 106 driven in rotation with firm mode access in order to support mobile optical read/write head 110.
On the other hand, Spindle Motor base plate 104 is locked on the carriage 102 by the first locked assembly group 122a and the second locked assembly group 122b.And Spindle Motor 106 is disposed on the Spindle Motor base plate 104.
Generally speaking, the bare engine module of CD-ROM drive is normally weighed an important indicator of the quality quality of a CD-ROM drive for the knowledge dish ability of CD.As shown in Figure 2, the rotation center of Spindle Motor 106 is the abilities that influence bare engine module 100 access CDs to the distance Y 1 in the axle center of leading rod 108, particularly discerns the key factor of the ability of eccentric optical disc.
In above-mentioned traditional bare engine module 100, because between Spindle Motor base plate 104 and the carriage 102, between Spindle Motor 106 and the Spindle Motor base plate 104, and, between the first leading rod pedestal 112a, the second leading rod pedestal 112b and the carriage 102, between leading rod 108 and the first leading rod pedestal 112a, the second leading rod pedestal 112b, have the assembling tolerance respectively.And above-mentioned each assembly itself also has manufacturing tolerance separately respectively.
Therefore, to the distance Y 1 in the axle center of leading rod 108, just can accumulate the tolerance that certain degree is arranged for the rotation center of Spindle Motor 106.This will cause Y1 off-design value a lot, cause the access capability deficiency of 100 pairs of CDs of bare engine module, and then the quality of CD-ROM drive can't be promoted.
Summary of the invention
Therefore, the bare engine module that the purpose of this invention is to provide a kind of CD-ROM drive, the rotation center of the Spindle Motor in making bare engine module to the distance in the axle center of leading rod meets design load, with the access capability of enhancement bare engine module to CD, and then the quality of CD-ROM drive is greatly promoted.
According to above-mentioned purpose, the present invention proposes a kind of bare engine module (Mecha) of CD-ROM drive, comprises a Spindle Motor base plate, a Spindle Motor, a leading rod and an optical read/write head.Spindle Motor and leading rod all are disposed on the Spindle Motor base plate.Optical read/write head is then being arranged on the leading rod along the axially movable mode of leading rod.In the bare engine module of the invention described above, also can comprise a carriage (MountingPlate), the Spindle Motor base plate is disposed on this carriage.
Moreover in the bare engine module of the invention described above, leading rod has one first rod end and one second rod end, and the Spindle Motor base plate then can comprise one first supporting part and one second supporting part.This first supporting part, second supporting part are relative with first rod end, second rod end respectively, and this first supporting part has one first depressed part, and second supporting part has one second depressed part.First depressed part and second depressed part in order to ccontaining and fix first rod end and second rod end, are disposed on the Spindle Motor base plate leading rod respectively.
In the invention described above bare engine module, first supporting part and second supporting part can be respectively one first pair of projection and one second pair of projection, perhaps, can also be respectively one first breasting pad and one second breasting pad.Should and should can be formed on the Spindle Motor base plate in integrated mode respectively first projection second projection.In addition, the first breasting pad and the second breasting pad can be respectively integrated structure.Perhaps, the first breasting pad and the second breasting pad can be respectively be formed on the Spindle Motor base plate in the mode of injection molded.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 is the decomposing schematic representation that shows bare engine module traditional in the CD-ROM drive.
Fig. 2 is the constitutional diagram of the bare engine module of displayed map 1.
Fig. 3 is the synoptic diagram of demonstration according to the bare engine module of the CD-ROM drive of the preferred embodiment of the present invention.
Fig. 4 A is the Spindle Motor of bare engine module of displayed map 3 and the decomposing schematic representation of leading rod.
Fig. 4 B is the constitutional diagram of displayed map 4A.
Fig. 5 shows another kind of being arranged on the Spindle Motor base plate in order to the fixing synoptic diagram of the breasting pad of leading rod.
Description of reference numerals:
100,300: bare engine module
102,302: carriage
104,304,504: the Spindle Motor base plate
106,306: Spindle Motor
108,308: leading rod
110,310: optical read/write head
112a: the first leading rod pedestal
112b: the second leading rod pedestal
114a: first locking screw
114b: second locking screw
116a, 316a: first rod end
116b, 316b: second rod end
118,318: axle sleeve
120,320: secondary guide rod
122a: the first locked assembly group
122b: the second locked assembly group
312a: first projection
312b: second projection
324,524: extension
326a, 526a: first depressed part
326b, 526b: second depressed part
512a: the first breasting pad
512b: the second breasting pad
Embodiment
The present invention is described in detail with a preferred embodiment.Yet this embodiment can't limit the scope of institute of the present invention desire protection.Embodiment in this article only is the bare engine module of a kind of CD-ROM drive under invention spirit of the present invention.Below, earlier technical characterstic of the present invention is described in detail.
Please be simultaneously with reference to Fig. 3, Fig. 4 A and Fig. 4 B.Fig. 3 is the synoptic diagram that shows according to the bare engine module of the CD-ROM drive of the preferred embodiment of the present invention, and Fig. 4 A is the Spindle Motor of bare engine module of displayed map 3 and the decomposing schematic representation of leading rod, and Fig. 4 B is the constitutional diagram of displayed map 4A.The bare engine module 300 of CD-ROM drive of the present invention mainly includes carriage 302, Spindle Motor base plate 304, Spindle Motor 306, leading rod 308 and optical read/write head 310.
Please refer to Fig. 4 A and Fig. 4 B.Spindle Motor 306 is disposed on the Spindle Motor base plate 304, and with the Spindle Motor base plate 304 that Spindle Motor 306 couples, have extension 324.It for example can be first supporting part and second supporting part of a pair of first projection 312a and a pair of second projection 312b that Spindle Motor base plate 304 includes.The both sides that the first paired projection 312a and the second projection 312b are disposed at the extension 324 of Spindle Motor base plate 304 respectively.The first paired projection 312a has the first depressed part 326a, and the second paired projection 312b has the second depressed part 326b.
Leading rod 308 has the first rod end 316a and the second rod end 316b, and the above-mentioned paired first projection 312a, the second projection 312b are relative with the first rod end 316a, the second rod end 316b respectively.The first depressed part 326a and the second depressed part 326b in order to ccontaining and fix the first rod end 316a and the second rod end 316b, are disposed on the extension 324 of Spindle Motor base plate 304 leading rod 308 respectively.
Moreover optical read/write head 310 is being disposed on the leading rod 308 along the axially movable mode of leading rod 308.For example, optical read/write head 310 is connected with axle sleeve 318, and with the axle sleeve 318 affixed with optical read/write head 310, socket leading rod 308 makes optical read/write head 310 by axle sleeve 318, can moving axially along leading rod 308.
In addition, please contrast Fig. 3 simultaneously, also dispose secondary guide rod 320 on the carriage 302, secondary guide rod 320 makes optical read/write head 310 be subjected to the CD of Spindle Motor 306 driven in rotation with firm mode access in order to support mobile optical read/write head 310.And at last, will dispose the Spindle Motor base plate 304 of leading rod 308 and Spindle Motor 306 again, and be disposed on the carriage 302, become bare engine module 300 as shown in Figure 3.Moreover bare engine module 300 can combine with CD-ROM drive bulk by carriage 302, becomes CD-ROM drive.That is carriage 302 is disposed on the CD-ROM drive bulk, and can become CD-ROM drive.
Please refer to Fig. 5, Fig. 5 shows another kind of being arranged on the Spindle Motor base plate in order to the fixing synoptic diagram of the breasting pad of leading rod.It shown in the figure extension 524 of Spindle Motor base plate 504.Be arranged on the Spindle Motor base plate,,, can also implement by the following practice except being the first projection 312a and the second projection 312b paired in the foregoing description in order to the fixing assembly of leading rod.
Spindle Motor base plate 504, including for example can be first supporting part and second supporting part of the first breasting pad 512a and the second breasting pad 512b.The first breasting pad 512a and the second breasting pad 512b are disposed at the both sides of the extension 524 of Spindle Motor base plate 504 respectively.The first breasting pad 512a has the first depressed part 526a, and the second breasting pad 512b then has the second depressed part 526b.
The first above-mentioned breasting pad 512a, the second breasting pad 512b are relative with the first rod end 316a, the second rod end 316b as the leading rod among Fig. 4 A 308 respectively.And the first depressed part 526a and the second depressed part 526b in order to the ccontaining and fixing first rod end 316a and the second rod end 316b among Fig. 4 A, are disposed on the extension 524 of Spindle Motor base plate 504 leading rod 308 respectively.
Moreover in Fig. 4 A, the first paired projection 312a, the second projection 312b can integrated mode be formed on the extension 324 of Spindle Motor base plate 304 respectively.And in Fig. 5, the first breasting pad 512a and the second breasting pad 512b can be integrated structure respectively.In addition, the first breasting pad 512a and the second breasting pad 512b, mode that respectively can injection molded is formed on the extension 524 of Spindle Motor base plate 504.
By the foregoing description as can be known, in the bare engine module 300 of CD-ROM drive of the present invention, because leading rod 308 all is disposed on the Spindle Motor base plate 304 with Spindle Motor 306, leading rod 108, the Spindle Motor 106 that is different from traditional bare engine module 100 is disposed at the situation on carriage 102, the Spindle Motor base plate 104 respectively.
Therefore, for the rotation center of Spindle Motor 306 to the distance Y 2 in leading rod 308 axle center, to only can accumulate has between Spindle Motor 306 and the Spindle Motor base plate 304, and, between the paired first projection 312a, the second projection 312b and Spindle Motor base plate 304, or, between the first breasting pad 512a, the second breasting pad 512b and the Spindle Motor base plate 504, leading rod 308 and the paired first projection 312a, the second projection 312b, or the assembling tolerance between the first breasting pad 512a, the second breasting pad 512b.And, also only can accumulate the manufacturing tolerance that above-mentioned each assembly is arranged.And lacked assembling tolerance between Spindle Motor base plate 304 and the carriage 302, and the manufacturing tolerance of carriage 302.
And, because the paired first projection 312a, the second projection 312b is formed on the extension 324 of Spindle Motor base plate 304 in integrated mode respectively, or the first breasting pad 512a and the second breasting pad 512b are formed on the extension 524 of Spindle Motor base plate 504 in the mode of injection molded respectively.So assembly precision is higher, has significantly reduced the first paired projection 312a, the second projection 312b, or the assembling tolerance between the first breasting pad 512a, the second breasting pad 512b and the Spindle Motor base plate 304.
Therefore, the bare engine module 300 of CD-ROM drive of the present invention to the distance Y 2 in the axle center of leading rod 308, just only can be accumulated less tolerance for the rotation center of Spindle Motor 306.This will get so that Y2 off-design value is less, and the access capability of 300 pairs of CDs of bare engine module is greatly promoted, and then the quality of CD-ROM drive can effectively be promoted.
In sum; though the present invention with embodiment openly as above; yet; it is not in order to limit the present invention; those skilled in the art; under the premise without departing from the spirit and scope of the present invention, can be used for a variety of modifications and variations certainly, so protection scope of the present invention should be as the criterion with the scope that appended claims was defined.
Claims (4)
1. CD-ROM drive comprises at least:
One carriage;
One Spindle Motor base plate is disposed on the described carriage;
One first supporting part is arranged on the described Spindle Motor base plate;
One second supporting part is arranged on the described Spindle Motor base plate;
One Spindle Motor is disposed on the described Spindle Motor base plate;
One leading rod has one first rod end and one second rod end, and wherein, described first supporting part and described second supporting part in order to carry fixing described first rod end and described second rod end, are disposed on the described Spindle Motor base plate described leading rod respectively; And
One optical read/write head is being arranged on the described leading rod along the axially movable mode of described leading rod.
2. CD-ROM drive as claimed in claim 1, wherein, described first supporting part is a pair of first projection, and described second supporting part is a pair of second projection, described this to first projection and described this to second projection is formed on the described Spindle Motor base plate in integrated mode respectively.
3. CD-ROM drive as claimed in claim 1, wherein, described first supporting part is one first breasting pad, and described second supporting part is one second breasting pad, and described first breasting pad and the described second breasting pad are respectively integrated structure.
4. CD-ROM drive as claimed in claim 1, wherein, described first breasting pad and the described second breasting pad are formed on the described Spindle Motor base plate in the mode of injection molded respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410078537 CN1746987A (en) | 2004-09-09 | 2004-09-09 | Optical drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410078537 CN1746987A (en) | 2004-09-09 | 2004-09-09 | Optical drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1746987A true CN1746987A (en) | 2006-03-15 |
Family
ID=36166493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410078537 Pending CN1746987A (en) | 2004-09-09 | 2004-09-09 | Optical drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1746987A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903373A (en) * | 2011-07-26 | 2013-01-30 | 飞利浦建兴数位科技股份有限公司 | Tilt adjustment device of optical read-write head |
-
2004
- 2004-09-09 CN CN 200410078537 patent/CN1746987A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903373A (en) * | 2011-07-26 | 2013-01-30 | 飞利浦建兴数位科技股份有限公司 | Tilt adjustment device of optical read-write head |
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