CN2849904Y

CN2849904Y - CD driver

Info

Publication number: CN2849904Y
Application number: CN 200520066920
Authority: CN
Inventors: 杨锦松
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2005-11-04
Filing date: 2005-11-04
Publication date: 2006-12-20
Anticipated expiration: 2015-11-04

Abstract

The utility model relates to a CD driver, which comprises a main body, a supporting board, a clamping clip, a motor and a rotating floor fixed on the motor, wherein the supporting board is fixed on the main body and is provided with a spacing hole, the clamping clip comprises a magnetic sensitive ring and a clamping disc, the magnetic sensitive ring is fixed in the clamping disc, the clamping clip is spaced in the spacing hole, the clamping clip matches with the rotating floor for firmly clamping a CD, the clamping disc is provided with a circular outer rim part and the middle part of the clamping disc is provided with a convex post and a clamping and buckling piece. The magnetic sensitive ring is fixed in the clamping disc by convex post and the clamping and buckling piece, and the outer diameter of the circular outer rim part of the clamping disc is smaller than the diameter of the spacing hole. The supporting board is provided with an inlet clamping port which is connected with the spacing hole, and the circular outer rim part of the clamping disc can penetrate through the inlet clamping port into the spacing hole and is spaced in the spacing hole. The CD driver of the utility model has the advantage of convenient assembly, and can save working hours of assembly and can be beneficial to the reduction of assembly cost of the CD driver.

Description

CD drive

[technical field]

The utility model relates to the clamping device that is used for chucking optical disk in a kind of CD drive, particularly CD drive.

[background technology]

CD drive has been widely used in consumer electronics and the information industry, as (the Video Compact Disc of the VCD in the consumption electronic products, video disc) player, DVD (DigitalVideo/Versatile Disc, digital video/general optic disc) (the Compact Disc-Read Only Memory of the CD-ROM in player and the PC, read-only optical disc) driver and DVD-ROM (DigitalVideo/Versatile Disc-Read Only Memory, digital video/general read-only optical disc) driver etc.When reading data in the CD because of CD drive CD need be under motor drives high speed rotating, so CD drive need be provided with clamping device usually CD is fixed on the turntable of motor.

Be illustrated in figure 1 as the structure of the CD drive 200 of prior art.CD drive 200 comprises an engaging folder 20, one back up pad 30, a turntable 16 and drives the motor 18 that turntable 16 rotates.Engaging folder 20 comprises that chuck 22, magnetosensitive ring 24 reach chuck 26 down.During assembling, magnetosensitive ring 24 is put into down in the circular groove 262 of chuck 26, the ring wall 266 of following chuck 26 and buckle 264 pass the spacing hole 32 of back up pad 30, buckle 264 buckles in the button hole 222 of chuck 22, thereby magnetosensitive ring 24 is fixed on chuck 22 to be reached down between the chuck 26, ring wall 266 is limited in the spacing hole 32 simultaneously, and engaging folder 20 can be rotated under the qualification of spacing hole 32.Back up pad 30 is fixed in the CD drive 200.During CD drive 200 operate as normal, the magnet that is provided with in the turntable 16 (figure does not show) absorption magnetosensitive ring 24, thereby CD (figure does not show) is held between turntable 16 and the following chuck 26, CD and engaging folder 20 can be rotated under the qualification of spacing hole 32.Need bimanualness when carrying out aforesaid operations, i.e. hand-held 26, one hand-held chucks 22 of going up of chuck down, and need buckle 264 to be aimed at button holes 222 and buckle into, thus finish the assembling of engaging folder 20 and be embedded in the spacing hole 32 of back up pad 30.The assembling inconvenience of this CD drive 200 when needing longer millwright, is unfavorable for large-scale production.

[utility model content]

In view of this, be necessary to provide a kind of CD drive that is easy to assemble.

A kind of CD drive, it comprises a body, one back up pad, one engaging folder, one motor and be fixed on turntable on the described motor, described back up pad is fixed on the described body and is provided with a spacing hole, described engaging folder comprises a magnetosensitive ring and a chuck, described magnetosensitive ring is fixed in the described chuck, described engaging double-layered quilt is limited in the described spacing hole, described engaging folder cooperates with described turntable and is used to clamp CD, described chuck has circular outer portion, described chuck middle part is provided with projection and fastener, described projection and fastener are fixed in described magnetosensitive ring in the described chuck, the external diameter of the circular outer portion of described chuck is less than described spacing hole diameter, described back up pad is provided with one goes into folder and mouthful links to each other with described spacing hole, and the circular outer portion of described chuck can pass the described Jia Kou of going into and enter described spacing hole and be limited in the described spacing hole.

Compared with prior art, only need during the assembling of above-mentioned CD drive the magnetosensitive ring is pressed into chuck and chuck is pushed spacing hole from going into clamp mouth part, can save and assemble man-hour, help reducing the assembly cost of CD drive.

[description of drawings]

Fig. 1 is the CD drive decomposition view of prior art.

Fig. 2 is the CD drive wiring layout of the utility model better embodiment.

Fig. 3 is the engaging folder of CD drive of the utility model better embodiment and the decomposition view of back up pad.

Fig. 4 is the engaging folder decomposition view of the CD drive of the utility model better embodiment.

Fig. 5 is the supporting plate structure figure of the CD drive of the utility model better embodiment.

Fig. 6 is the utility model better embodiment CD drive wiring layout.

Fig. 7 is the CD drive sectional view of the utility model better embodiment.

[embodiment]

Be illustrated in figure 2 as the CD drive wiring layout of the utility model better embodiment.CD drive 400 comprises a body 7, a back up pad 50 and an engaging folder 40, and back up pad 50 is fixed on the body 7 of CD drive 400, and engaging folder 40 is by movably spacing in back up pad 50.The body 7 of CD drive 400 is provided with motor 10 (please referring to Fig. 7) and is fixed on turntable 6 on the motor 7, turntable 6 with engage folder 40 and cooperate and clamp CD 8 and under the drive of motor 7, rotate.

Be illustrated in figure 3 as the decomposition view of engaging folder 40 and back up pad 50 of the CD drive of the utility model better embodiment.Engaging folder 40 comprises a chuck 42 and a magnetosensitive ring 44.Magnetosensitive ring 44 can be itself with regard to magnetic material, as magnet etc., also can be can be by the material of magnetic attraction, as iron, cobalt, nickel etc.Magnetosensitive ring 44 is fixed in the chuck 42 by the stationary installation in the chuck 42.Chuck 42 embeds in the spacing hole 512 of back up pad 50, and can rotate in spacing hole 512.

As shown in Figure 4, chuck 42 comprises a main body 420, and main body 420 is a bowl dish shape, and it comprises a bottom 422, one an oblique portion 424 and an outer portion 426.Bottom 422 is used for cooperating with the turntable 6 (please referring to Fig. 7) of CD drive, and it is rounded step-like, and the middle part raises up and forms a boss 422a.Tiltedly portion 424 forms for tilting to stretch out around 422 from the bottom, and tiltedly portion's 424 1 end levels stretch out and form circular outer portion 426.Bottom 422, oblique portion 424 and the outer portion 426 common bowl structure that form.

The middle part of boss 422a is provided with perpendicular projection 421, and the end face 421a of projection 421 is approximate cruciform.The side of projection 421 is surrounded by convex surface 421c that is crisscross arranged and concave surface 421d, and convex surface 421c and concave surface 421d be all curved surface, and convex surface 421c is the part of an imaginary circles cylinder.Be connected by cambered surface 421b is slick and sly between end face 421a and the convex surface 421c.The diameter of the imaginary circles cylinder that convex surface 421c is of living in equals or is slightly larger than the diameter of the interior ring 441 of magnetosensitive ring 44.Projection 421 middle parts are provided with a cylindrical center bore 423.

One circumference equal intervals of bottom 422 three fasteners 428 are set, are used for magnetosensitive ring 44 is fixed in the chuck 42.Fastener 428 is made for resilient material, it is hook-shaped, and an end links to each other with the bottom 422 of chuck 42, and the other end is provided with an approaching face 428a and a snap-latch surface 428b, approaching face 428a is obliquely installed with respect to the middle part of boss 422a, and snap-latch surface 428b and approaching face 428a are oppositely arranged.

Rib 429 is the strip shape body from the radial protrusion of rounded bottom 422, and an end links to each other with oblique portion 424, and the other end links to each other with boss 422a, and it evenly distributes in the bottom, is used for reinforcing engaging folder 40, in order to avoid deformation takes place in its when rotating or permanent back of using.

As shown in Figure 5, back up pad 50 is provided with adjacent limiting section 510 and goes into folder portion 520.

The middle part of limiting section 510 is provided with a subcircular spacing hole 512, and limiting section 510 is used for engaging folder 40 is limited in the spacing hole 512, and engaging folder 40 can be rotated in spacing hole 512, and the structure of going into folder portion 520 makes engaging folder 40 be easy to be installed in the spacing hole 512.Spacing hole 512 determines that by sidewall 514 slightly larger in diameter of spacing hole 512 is in the external diameter of chuck 42 outer portions 426.Sidewall 514 is provided with position limiting structure, and this position limiting structure comprises that first is spacing spacing along 518 along 516 and second.First spacingly spacingly is located on the sidewall 514 along 518 flat shapes along 516 and second.First spacingly is square along 516, and its end face 516a is to the distance in spacing hole 512 centers of circle external radius less than chuck 42 outer portions 426.The second spacing distance along 518 curved end 518a to spacing hole 512 centers of circle is equally less than the external radius of chuck 42 outer portions 426.First is spacing along the height of the 516 and second spacing vertical range between 518 greater than chuck 42 outer portions 426.

Going into folder portion 520 is provided with one and goes into folder mouthfuls 522 and link to each other with the spacing hole 512 of limiting section 510.Go into also to be provided with a circular depressed 529 in the folder portion 520, the diameter of circular depressed 529 is greater than the diameter of chuck 42 outer portions 426.Depression 529 is provided with an opening (figure do not show), and opening direction faces toward into folder mouth 522, thereby 529 the opening of caving in communicates with spacing hole 512 by going into folder mouthfuls 522.Go into folder portion 520 and be provided with relative two elastic clips, 526, two elastic clips 526 and be positioned on the circumference of spacing hole 512 going into folder mouthful 522 both sides, and the distance between two elastic clips 526 is less than the diameter of chuck 42 outer portions 426.Go into folder portion 520 and be provided with a flange 528 between two elastic clips 526, flange 528 is positioned at circular depressed 529 middle parts.Flange 528 has the free end 528b that a stiff end 528a and who links to each other with depression 529 bottom surfaces stretches to spacing hole 512, and free end 528b can move along the direction that departs from spacing hole 512 within the specific limits.Flange 528 is provided with three spacing preiections 524 and is positioned on the circumference of spacing hole 512, and spacing preiection 524 is determined spacing hole 512 with sidewall 514.The diameter of circular depressed 529 is greater than the diameter of outer portion 426.

Assembling engaging folder 40 o'clock, magnetosensitive ring 44 places the top of projection 421, the interior ring 441 of magnetosensitive ring 44 is aimed at projection 421, slightly firmly to pressing down magnetosensitive ring 44, deformation takes place in fastener 428, because the angle of inclination of approaching face 428a, magnetosensitive ring 44 is easy to slip in the chuck 42 along approaching face 428a, and cambered surface 421b makes that magnetosensitive ring 44 is easy to be inserted in the projection 421 equally simultaneously.After magnetosensitive ring 44 slipped in the chuck 42, the snap-latch surface 428b of fastener 428 was fixed on magnetosensitive ring 44 on the round platform 422a.Because the diameter of the convex surface 421c of projection 421 equals or is slightly larger than the diameter of the interior ring 441 of magnetosensitive ring 44, and projection 421 and magnetosensitive ring 44 are nested together securely.Because of the square section of projection 421 is cross, even the slightly larger in diameter of projection convex surface 421c is in the diameter of the interior ring 441 of magnetosensitive ring 44, deformation can take place to concave surface 421d place in projection 421 cross post jambs, and the structure with cylindrical center bore 423 also is beneficial to projection 421 and is compressed distortion, thereby produce deformation elastic force magnetosensitive ring 44 can firmly be fixed in the chuck 42.

After 40 assemblings of engaging folder are finished, chuck 42 is put into the circular depressed 529 of back up pad 50, push chuck 42 from going into folder mouthfuls 522 along spacing preiection 524 in spacing hole 512, this moment, the free end 528b of flange 528 drove spacing preiection 524 to the direction generation elastic deformation that departs from spacing hole 512.Simultaneously since the distance between two elastic clips 526 less than the diameter of chuck 42 outer portions 426, two elastic clips 526 separate to both sides, and the outer portion 426 of chuck 42 is embedded in the spacing hole 512.After chuck 42 outer portions 426 were embedded into spacing hole 512, elastic clip 526 and spacing preiection 524 were because recovery of elasticity arrives original position.Thereby will engage folder 40 embeds in the spacing hole 512 of back up pad 50.

Be illustrated in figure 6 as the utility model better embodiment CD drive wiring layout.Elastic clip 526 and spacing preiection 524 spacingly spacingly are limited in chuck 42 outer portions 426 in the spacing hole 512 along 518 along 516 and second with first, because first is spacing along the external radius of 516 and the second spacing distance along 518 end face 516a and 518a to the spacing hole center of circle less than chuck 42 outer portions 426, so that chuck 42 is limited in spacing hole is interior and do not drop.Again, the slightly larger in diameter of spacing hole 512 is in the diameter of chuck 42 outer portions 426, so chuck 42 can rotate under the situation that does not break away from spacing hole 512.

As shown in Figure 7, after CD 8 was inserted into CD drive 400, the turntable 6 and the motor 10 of CD drive 400 lifted to the direction of chuck 42, and turntable 6 contains magnetisable material.Magnetosensitive ring 44 under the magnetisable material magneticaction, drives chuck 42 and pushes down CD 8 in turntable 6, and therefore engaging folder 40 can clamp CD 8 and rotate with turntable 6 under the drive of motor 10.During rotation, because position limiting structure first is spacing along 516 spacing along the cooperating of 518 existence and elastic clip 526 and spacing preiection 524 with second, the outer portion 426 of chuck 42 is limited in spacing hole 512 interior rotations all the time.

CD drive 400 is that chuck 42 replaces with the last chuck in the CD drive 200 of prior art 22 and element of following chuck 26 usefulness, makes and the simple in structure of engaging folder 40 has reduced the element cost.Only need magnetosensitive ring 44 is pressed into the assembling that chuck 42 can be finished engaging folder 40, reduced assembling man-hour.The respective outer side edges of engaging folder 40 and back up pad 50 only need singlehanded and engaging can be pressed from both sides 40 push in the spacing hole 512, so CD drive 400 is easy to assembling.

The projection 421 end face 421a of chuck 42 are nearly cruciform in the above-mentioned embodiment, and the quantity of fastener 428 is three, in fact can do suitable change to chuck 42 as required.As projection 421 end face 421a being arranged to stars such as five jiaos or hexagonal or spiralling concave surface etc. being set on projection 421 surfaces.Fastener 428 on the chuck 42 can be arranged to four or two etc. in addition, and the quantity of rib 429 can be done suitable change equally.And magnetosensitive ring 44 can be provided with two, as one be magnet ring, one is irony ring etc.

In addition, the quantity of the spacing preiection 524 of back up pad 50 can be arranged to two or four etc., and spacing preiection 524 can not have yet simultaneously, the outer portion 426 of chuck 42 can be limited in the spacing hole 512 by position limiting structure.Spacing shape along 516,518 is not limit the shape with present embodiment, only needs its end face to the distance in the spacing hole center of circle external radius less than chuck 42 outer portions 426, can realize limit function.

Claims

1. CD drive, it comprises a body, one back up pad, one engaging folder, one motor and be fixed on turntable on the described motor, described back up pad is fixed on the described body and is provided with a spacing hole, described engaging folder comprises a magnetosensitive ring and a chuck, described magnetosensitive ring is fixed in the described chuck, described engaging double-layered quilt is limited in the described spacing hole, described engaging folder cooperates with described turntable and is used to clamp CD, it is characterized in that: described chuck has circular outer portion, described chuck middle part is provided with projection and fastener, described projection and fastener are fixed in described magnetosensitive ring in the described chuck, the external diameter of the circular outer portion of described chuck is less than described spacing hole diameter, described back up pad is provided with one goes into folder and mouthful links to each other with described spacing hole, and the circular outer portion of described chuck can pass the described Jia Kou of going into and enter described spacing hole and be limited in the described spacing hole.

2. CD drive as claimed in claim 1 is characterized in that: described projection has a side, and this side is provided with concave surface.

3. CD drive as claimed in claim 1 is characterized in that: described projection middle part is provided with center pit.

4. CD drive as claimed in claim 1 is characterized in that: described relatively bottom, described fastener top is provided with an inclination approaching face.

5. CD drive as claimed in claim 1 is characterized in that: described back up pad has a sidewall, and described spacing hole determines that by this sidewall described sidewall is provided with the first spacing edge and the second spacing edge that is parallel to each other.

6. CD drive as claimed in claim 5, it is characterized in that: the end face on the described first spacing edge and the second spacing edge is to the distance in the described spacing hole center of circle external radius less than described chuck outer portion, described circular outer portion by the described first spacing edge and second spacing along spacing in described spacing hole.

7. CD drive as claimed in claim 1 is characterized in that: described back up pad is provided with one and goes into folder portion, describedly goes into folder portion and described spacing hole and goes into folder and mouthful link to each other by described, and described chuck can be gone into folder portion and enters into described spacing hole from described.

8. CD drive as claimed in claim 7, it is characterized in that: describedly go into folder portion and be provided with elastic clip in the described Jia Kou of going into both sides, the circular outer portion of described chuck pass described when going into folder mouthful described elastic clip deformation can take place, the circular outer portion of described chuck enters into describedly to be gone into the folder mouthful described elastic clip in back and returns on the circumference of described spacing hole and further spacing described chuck.

9. CD drive as claimed in claim 8 is characterized in that: describedly go into folder portion be provided with a flange between described elastic clip, described flange has one can pass the described free end that moves to the direction that departs from described spacing hole when going into folder mouthful at described chuck.

10. CD drive as claimed in claim 9, it is characterized in that: described flange is provided with spacing preiection, the circular outer portion of described chuck pass described when going into folder mouthful described spacing preiection can move in the direction that departs from described spacing hole with described flange, the circular outer portion of described chuck enters into describedly to be gone into the folder mouthful described spacing preiection in back and returns on the circumference of described spacing hole and further spacing described chuck.