CN1229804C - Vibration suppressing mechanism for CD drive - Google Patents

Abstract

The present invention provides a vibration suppressing mechanism for a CD drive, which is arranged on the outer side of a fixing seat of a clamping element in the CD drive, and a buffer element is configured on the inner surface of an optical drive casing, corresponding to the outer side in order to buffer the airstream speed change generated when a CD rotates, and consequently, the optical disk vibration generated due to the airstream speed change of the CD can be reduced.

Description

The vibration suppressing mechanism of CD-ROM drive

Technical field

The present invention relates to a kind of vibration suppressing mechanism, particularly relate to the vibration suppressing mechanism of a kind of CD under high speed rotating.

Background technology

In today of information explosion, all with the distribution of the form of CD, in recent years, the listing of consumer CD increases most media product year by year, and now almost each computer all include a CD-ROM drive, the importance of CD-ROM drive aspect multimedia that hence one can see that.Modal on the market now CD-ROM drive is CD-ROM and CD-RW, the capacity of a slice CD can reach 640MB, and, two times speed doubly fast from initial list ..., and even now 52 or higher multiple, the progress of CD-ROM and CD-RW is not unhappy, also be because the making rapid progress of technology, so allow it in multimedia application, more diversification.Simultaneously, after the practicality of CD improves gradually, also will be the computerized information world, bring new agitation.

The mechanical driving mechanism of CD-ROM drive mainly be used for promoting Spindle Motor rotation and optical read/write head follow rail and focusing; But problem is that CD is under high speed rotating, tend to because the beat of Spindle Motor, disc tilt etc. cause news rail off-centre or optical disk high-speed to cause the CD driver stream pressure to differ under rotating, make target news rail at focal axis to vibrating back and forth with disc radial direction, optical read/write head can't be read or burning goes out correct signal.

Please refer to Fig. 1, it illustrates pellet type CD-ROM drive synoptic diagram.CD-ROM drive 100 comprises casing 105, pallet 110, clamping element 120, clamping element holder 125 etc.Pallet 110 is provided with disc groove 130, puts for CD 135.

Shown in Fig. 2 A, it illustrates the situation of CD driver.After CD 135 is inserted disc groove 130, this pallet 110 enters CD driver, seizes on both sides by the arms with rotating disk 140 by seizing element 120 on both sides by the arms, can firmly clamp CD 135, CD 135 can turn round under high rotating speed reposefully by the driving of rotating disk 40, can carry out the data write action.Usually in the CD-ROM drive of above-mentioned pellet type (tray-type), utilize clamping element holder 125 to fix clamping element 120, after CD 135 was inserted pallet 110, pallet 110 can be brought CD 135 in the CD-ROM drive into and just locate.

As Fig. 2 B, it illustrates clamping element and rotating disk chucking optical disk synoptic diagram (cut-open view that Fig. 2 B is drawn for 2B-2B profile line among Fig. 2 A).Being interlockingly connected between its expression clamping element 120 and the rotating disk 140, and deduction CD 135 avoid CD 135 to break away from because of rotation.It should be noted that, because the setting of clamping element holder 125, make the space of CD 135 tops partly be covered (being held element holder 125 covers), cause CD 135 when high speed rotating formed gas flowfield at shelter and shelter and not inequality.Because gas flowfield is inhomogeneous, makes the distribution in the space of gas flow rate and air pressure change and cause CD 135 to produce shaking.Because the effect of clamping element holder 125 is accurate positioning clamping element 120, guarantee that it can correctly combine with rotating disk 140, so it is unavoidable that it is provided with gesture institute, but it is provided with and also therefore makes CD 135 have the situation of vibrations to take place under the state of high speed rotating, and then influences the quality of optical read/write head for the reading and writing data on the CD 135.

Hence one can see that, because above-mentioned design, thereby produce following shortcoming:

One, CD causes vibrations under high speed rotating: because the setting of clamping element holder, cause the space of CD top partly to be covered, therefore the formed gas velocity of CD by rotation just has uneven phenomenon generation, make that the pressure gradient in this flow field is excessive, cause the vibrations of CD.

Two, easily cause the CD read and write failure: because CD has the situation of vibrations to take place, the CD rotation is unstable, therefore the CD-ROM drive read head can read misdata district on the CD, make that needing CD to circle reads again again, reading efficiency is therefore low, imprinting CDs if use, then can cause the CD burning failure, and causing the loss of etch-recordable optical disk.

Summary of the invention

The object of the present invention is to provide a kind of vibration suppressing mechanism of CD-ROM drive, it reduces the vibrations that CD is produced when rotated; Reduces CD and read failure, and reading efficiency is therefore low, saves CD because of vibrations because of vibrations institute causes, cause the imprinting failure after, need again the time of imprinting and cost again.

The object of the present invention is achieved like this, a kind of vibration suppressing mechanism of CD-ROM drive promptly is provided, this CD-ROM drive comprises a casing and a clamping element holder, this casing has an inside surface, the vibration suppressing mechanism of this CD-ROM drive comprises: a buffer element, be disposed at pairing this inside surface place, the outside of this clamping element holder, bottom the vertical range between this buffer element bottom and a CD and this clamping element holder with this CD between vertical range equate.

The present invention also provides a kind of CD-ROM drive with vibration suppressing mechanism, this CD-ROM drive comprises a casing and a clamping element holder, this casing has an inside surface, this CD-ROM drive also comprises: a buffer element, be disposed at pairing this inside surface place, the outside of this clamping element holder, bottom the vertical range between this buffer element bottom and a CD and this clamping element holder with this CD between vertical range equate.

Further, the vibration suppressing mechanism of CD-ROM drive of the present invention is the outside of the clamping element holder in CD-ROM drive, CD-ROM drive casing inner surface pairing with it, the configuration buffer element, and this buffer element can be foaming soft material or sponge, the vibration suppressing mechanism of this each CD-ROM drive is promptly accused and is finished.So, CD just can not take place because of high speed rotating has the phenomenon of unusual vibrations again.

Description of drawings

Fig. 1 is a pellet type CD-ROM drive synoptic diagram;

Fig. 2 A is the situation figure of CD driver;

Fig. 2 B is clamping element and rotating disk chucking optical disk synoptic diagram;

Fig. 3 A～Fig. 3 C is CD and clamping element holder synoptic diagram;

Fig. 4 A is at clamping element holder outside configuration buffer element synoptic diagram;

Fig. 4 B is among Fig. 4 A being disposed at buffer element the situation figure of casing inner surface;

Fig. 4 C～Fig. 4 D is among Fig. 4 A being disposed at buffer element the diagrammatic cross-section of casing inner surface;

Fig. 5 is the collocation method synoptic diagram of the another kind of buffer element that preferred embodiment of the present invention provided;

Fig. 6 is the collocation method synoptic diagram of the another kind of buffer element that preferred embodiment of the present invention provided.

Embodiment

The vibration suppressing mechanism of CD-ROM drive provided by the present invention, it focuses on because the setting of the clamping element holder in the CD-ROM drive, causing the space of CD top to be held the element holder partly covers, therefore when optical disk high-speed rotates, drive surrounding air and form uneven gas flowfield, cause the gas flowfield pressure gradient excessive, cause the unusual seismism of the generation of CD in the high speed rotating process.And at clamping element holder outside configuration buffer element, so that the CD of high speed rotating still can form uniform gas flowfield, to suppress the vibrations of CD.And this buffer element can be foaming soft material or sponge.Its specific implementation method will be in hereinafter being illustrated.

Please refer to Fig. 3 A～Fig. 3 C, it illustrates CD and clamping element holder synoptic diagram.As illustrating among Fig. 3 A, clamping element holder 125 has first leading edge 310 and second leading edge 320, CD 135 is driven by rotating disk, arrow direction as shown in FIG., CD 135 is made clockwise direction and is rotated, and the space of CD 135 tops includes first space 331, second space 332, the 3rd space 333 and the 4th space 334.

Illustrate (Fig. 3 B and Fig. 3 C are respectively the cut-open view that 3B-3B profile line and 3C-3C profile line are drawn among Fig. 3 A) as Fig. 3 B and Fig. 3 C, first space 331 and the 3rd space 333 are the space between the inside surface of CD 135 and casing 105; Second space 332 and the 4th space 334 then are the space between CD 135 and the clamping element holder 125.When CD 135 is done the clockwise direction rotation, air in CD 135 superjacent air spaces can be driven by CD 135, cause first space 331 height different with the height in second space 332 and the 3rd space 333 and the 4th space 334 is different, therefore the air that drives can form uneven gas flowfield, this uneven gas flowfield thereby cause excessive gaseous tension gradient in second space 332 and the 4th space 334, make CD 135 in the process of high speed rotating, can produce unusual seismism.In order to reduce because of the pressure gradient that clamping element holder 125 is caused is set, can be at second outer rim, 320 outsides of first outer rim, 310 outsides of first space 331 and second space, 332 intersections configuration buffer element and the 3rd space 333 and the 4th space 334 intersections configuration buffer element, with the adjustments of gas flow field, and then make its homogenising, CD 135 unlikely generations in high speed rotating are shaken.

Please refer to Fig. 4 A, it is illustrated in clamping element holder outside configuration buffer element synoptic diagram.CD rotates according to clockwise arrow direction shown in the figure, buffer element 405 can be disposed at first outer rim 310 of clamping element holder 125 and the outside of second outer rim 320.

Please refer to Fig. 4 B, what it illustrated is the situation that among Fig. 4 A buffer element is disposed at casing inner surface.Casing 105 for raising shown in the figure, by diagram as can be known, casing 105 inside have a spatial accommodation 410, and buffer element 405 is actually the inside surface that is configured in the pairing casing 105 of first outer rim 310 and second outer rim, 320 outsides of clamping element holder.

Please refer to Fig. 4 C～Fig. 4 D, it illustrates the diagrammatic cross-section that among Fig. 4 A buffer element is disposed at casing inner surface (Fig. 4 C and Fig. 4 D are respectively the cut-open view that 4C-4C profile line and 4D-4D profile line are drawn among Fig. 4 A).Buffer element 405 is disposed at respectively on the inside surface of the pairing casing in first outer rim, 310 outsides and second outer rim, 320 outsides among Fig. 4 C and Fig. 4 D, and the thickness of buffer element 405, then need make CD-ROM drive in (back on the cabinet cover) after the combination, the vertical range that buffer element 405 bottoms and CD are 135, can equate with the vertical range of 135 of clamping element holder 125 bottoms and CDs, make the height in the win space and second space close, the height in the 3rd space and the 4th space is close, this help making CD 135 because of high speed rotating drive around the formed gas flowfield homogenising of (meeting with) air.

Please refer to Fig. 5, collocation method synoptic diagram of the another kind of buffer element that provides according to preferred embodiment of the present invention is provided for it.CD rotates according to clockwise arrow direction shown in the figure, the length on one side that the buffer element 415 that is illustrated among the figure is adjacent with first outer rim 310 is greater than half of first outer rim 310, this buffer element 415 is comprised outside the boundary in first space 331 and second space 332 fully, the gradient that can reduce pressure effectively, buffer element 415 are disposed on the inside surface of the pairing casing in first outer rim, 310 outsides and second outer rim, 320 outsides of clamping element holder 125 equally.

Please refer to Fig. 6, collocation method synoptic diagram of the another kind of buffer element that provides according to preferred embodiment of the present invention is provided for it.The length on one side that the buffer element 415 that is illustrated among the figure is adjacent with first outer rim 310 equals first outer rim 310, can make this buffer element 415 comprise first space 331 fully, and gradient can effectively reduce pressure.

The collocation method of two kinds of above-mentioned buffer elements, the thickness of buffer element must reach after on the cabinet cover, vertical range between buffer element bottom and CD, can equate with vertical range between CD with clamping element holder bottom, its purpose is and can makes because of the formed gas flowfield homogenising of the surrounding air that CD drives of high speed rotating, the configuration of this buffer element can effectively suppress the seismism that CD-ROM drive is produced because of the rotation of being provided with of the clamping element holder optical disk high-speed that causes.

Three kinds of methods in the foregoing description, its buffer element can be foaming soft material or sponge, and this each mechanism can reduce the vibrations of CD-ROM drive, to substitute the mechanism of the following vibrations of being derived of existing no buffer element configuring condition.

It should be noted that, the geometry of each object only is an example of the present invention among the embodiment, be not in order to limiting applicable elements of the present invention, anyly be familiar with this operator and all can be adjusted and reach similar function, but still do not break away from spirit of the present invention with the present invention.

The vibration suppressing mechanism of the disclosed CD-ROM drive of the above embodiment of the present invention has the following advantages at least:

One, can reduce the vibrations that CD is produced under high speed rotating: because the configuration of the buffer element on the CD-ROM drive casing inner surface, make originally since the clamping element holder be provided with cause by CD high speed rotating following the formed nonuniform gas of the surrounding air that drives flow field be able to homogenising, the velocity gradient and the pressure gradient in flow field diminish, and therefore can reduce the seismism that CD is caused when high speed rotating.

Two, can effectively improve the success ratio of CD burning: when CD-RW imprints CDs, take place because CD no longer includes the situation of vibrations, so optical read/write head just can effectively inscribe CD, the CD spoilage can effectively reduce.

Three, save the time that CD repeats imprinting: if damage because of vibrations cause CD burning, the imprinting once more of then need taking time, if shockproof factor, then this time that respectively repeats imprinting can be obtained saving.

In sum; though the present invention has disclosed the present invention in conjunction with an above preferred embodiment; yet it is not in order to limit the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can be used for a variety of modifications and variations, so protection scope of the present invention should be with being as the criterion that claim was defined.

Claims (6)

1. the vibration suppressing mechanism of a CD-ROM drive, this CD-ROM drive comprises a casing and a clamping element holder, and this casing has an inside surface, and the vibration suppressing mechanism of this CD-ROM drive comprises:

One buffer element is disposed at pairing this inside surface place, the outside of this clamping element holder, bottom the vertical range between this buffer element bottom and a CD and this clamping element holder with this CD between vertical range equate.

2. the vibration suppressing mechanism of CD-ROM drive as claimed in claim 1, wherein this buffer element is the foaming soft material.

3. the vibration suppressing mechanism of CD-ROM drive as claimed in claim 1, wherein this buffer element is a sponge.

4. the vibration suppressing mechanism of CD-ROM drive as claimed in claim 1, wherein a side of this buffer element and this clamping element holder outside is adjacent, and the length of a side of this buffer element is greater than half of this clamping element holder outside length.

5. the vibration suppressing mechanism of CD-ROM drive as claimed in claim 1 is wherein adjacent outside a side of this buffer element and this clamping element holder, and the length of a side of this buffer element equals the length in this clamping element holder outside.

6. CD-ROM drive with vibration suppressing mechanism, this CD-ROM drive comprises a casing and a clamping element holder, and this casing has an inside surface, and this CD-ROM drive also comprises:

One buffer element is disposed at pairing this inside surface place, the outside of this clamping element holder, bottom the vertical range between this buffer element bottom and a CD and this clamping element holder with this CD between vertical range equate.

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