CN101101775B - Disk device - Google Patents

Abstract

The invention provides a disk unit, which can effectively discharge heat outside by a chassis case wherein the heat is generated by an optical pickup unit, prevent the temperature of the optical pickup unit from rising and make action stable relative to heat impact. A disk drive mechanism and an optical pickup unit are mounted on the lift frame. The said disk drive mechanism consists of a turntable and a spindle motor provided with a clamp head. The optical pickup unit moving ahead and back in a diametral direction of a disk relative to the said clamp head. The clamping or releasing the clamp of a feed hole of a disk of the said clamp head is performed by moving up and down the lift frame. A radiation sheet is stuck on a bottom plate side of a chassis case corresponding to an initial position after making the optical pickup unit leaving from the clamp head. The bottom of said optical pickup unit contacts with the said radiation sheet when the said lift frame descends.

Description

The dish device

Technical field

The invention relates to dish device in the information machines such as various computer systems, that drive as the CD (for example, CD-R/RW, DVD-R/-RW/RAM/+R/+RW etc.) that can write down the recording medium of bulk information.

Background technology

In general, be built in the dish device in the personal computer (following abbreviation PC) etc., have the disc holder that loading tray is used usually, but this disc holder constitutes the structure of forward-reverse.And the dish that is loaded on the disc holder is driven in the dish device body, carries out recording of information or regeneration.

Figure 13 is the skeleton view of the outward appearance of this dish device 101 in the past of expression, but disc holder 102 forms the shallow disc shape that holding optical disk is used, dispose turntable 104 in the central, this turntable 104 is fixed on the driving shaft that is disposed at the Spindle Motor 103 under the disc holder 102, chuck 105 by means of this turntable 104 is clamped in the center pit of CD, drives.

Optical pickup units 106, by means of the driving mechanism that is formed in disc holder 102 the insides, all diametric(al) to-and-fro movements along disc holder 102 are from its light beam lens 106a laser beam irradiation CD.At the front end of disc holder 102, protecgulum 107 is installed, indicator 107a is towards the surface, has the through hole 107b that the lock-out state of compulsory commutation disc holder 102 is used, and, also have the button 108 that the lock-out state of removing disc holder 102 is used.The both sides of disc holder 102 are supporting that with free chimerism this guide rail 109 is being supported slidably by chassis box 110 by guide rail 109.

The dish device 101 of Gou Chenging like this is built in the sidepiece etc. of body of PC, and according to switching manipulation or from the instruction of PC body, disc holder 102 flies out fast, further, the user of PC pulls out carriage 102, loading optical disk.

Yet, in general, in desktop personal computer, because the volume of its body is big, so, built-in dish device also can adopt large scale structure, but, be built in the dish device in the PC of notebook type, constitute very slim structure, and, installed to CD carry out the optical pickup units of information record or information regeneration and carry out the drive controlling of this optical pickup units, the wiring substrate and the organ of electronic units such as SIC (semiconductor integrated circuit) element that signal Processing is used all will be assembled in the disc holder 102.

Owing to adopt such formation, in recent years, electronic unit and organ are provided in the inside of coiling device thick and fast, various CDs are carried out information record or information regeneration, packing technique is very relevant with the performance of raising dish device in fact.Particularly, in the dish device of the laptop that requires slimming, correspondence to CD-ROM/R/RW (reading/write/write troactively) is general requirement, make and both keep slimming, and can the style corresponding be very difficult again with DVD-R/RW/RAM (writing/write troactively).

This becomes the heat subject of DVD-RW with the light picker that structure adopted.In other words, DVD-RW adopts the high-power red laser diode of 650nm as standard with light picker, but, this high-power red laser diode can be about 60 ℃ of degree by normally luminous upper temperature limit usually, in contrast to this, when temperature rose (66～70 ℃), luminous meeting stopped, and this is the problem that faces.

And, in slim dish device, as mentioned above, a lot of electronic units are real to be contained in disc holder or the chassis box, yet, the particularly SIC (semiconductor integrated circuit) element of microsystem 100 ℃ the heating of having an appointment, in addition, carry out the SIC (semiconductor integrated circuit) element (front-end processor) that data write, can produce the high heat more than 100 ℃.The dish device of the parts that produce this high heat is housed in fact, and certainly, its inner atmosphere temperature can rise, and it is difficult that light picker adopts high-power red laser diode.

Given this, in being built-in with the subnotebook PC of employing DVD-RW, have exhaust apparatus, will install inner air forcibly and discharge, prevent that the temperature of coiling device from rising to the outside with the dish device of light picker.Yet this exhaust apparatus is to slimming, the disadvantageous inscape of miniaturization owing to adopt sizable structure, also is the main cause that produces noise.In addition, also have and attempt heat radiator is sticked on technology (for example patent documentation 1) on the optical pickup units.

Patent documentation 1: the spy opens the 2005-196860 communique.

Summary of the invention

The problem that invention will solve

Yet, only adopt heat radiator is sticked on measure on the optical pickup units, can not fully the heat that heat radiator absorbed be emitted to the device outside.In other words, optical pickup units is in the inner sealed state of dish device, and the part that heat radiator does not contact with device is so the heat of absorption can be put aside on heat radiator and keep such state, the effect that can not fully be dispelled the heat.

Adopt above-mentioned heat abstractor in the past, for the formation that disc holder is extracted out, be so-called pull-out type dish device, when pulling out dish, because optical pickup units can discharge from the air-tight state of chassis box and contact with outer gas, so, can place on expectation to a certain degree to heat radiation at this moment.Yet, for the dish device of the suction of not adopting disc holder (ス ロ Star ト イ Application) mode, owing to be the structure that dish is inserted from notch, so optical pickup units is in the inner sealed state of dish device usually, does not contact fully with outer gas.Like this, under the situation of the dish device that DVD-RW is used for suction with light picker, because the inner atmosphere temperature degree of device is unusual high temperature, so, employing sticks on measure on the optical pickup units with heat radiator, can not expect the effect that has temperature to reduce.

The present invention proposes in view of above-mentioned existing issue, its objective is, provide a kind of the heat that is produced on the optical pickup units is discharged to the device outside effectively by the chassis box, whereby, the temperature that can prevent light picker rises, and the influence of relatively hot can make the stable dish device of action.

The mode that addresses the above problem

Given this, the present invention solves above-mentioned problem by following variety of way.In other words, the dish device of the 1st mode of the present invention, lifting support is provided with dish driving mechanism and optical pickup units, this dish driving mechanism is made of turntable with chuck and Spindle Motor, this optical pickup units can coil the diametric(al) forward-reverse by above-mentioned relatively chuck, by above-mentioned lifting support is moved up and down, can carry out above-mentioned chuck to the clamping of center hole or the releasing of clamping, and, on the base plate face of the chassis box corresponding with making primary position after above-mentioned optical pickup units leaves chuck, be pasted with heat radiator, this chassis box is the box body that covers above-mentioned dish device integral body, when above-mentioned lifting support had descended, the bottom surface of above-mentioned optical pickup units contacted with above-mentioned heat radiator, and the heat of above-mentioned optical pickup units is dispelled the heat the outside to above-mentioned dish device via above-mentioned chassis box.

In addition, in the dish device of above-mentioned the 1st mode, the base plate face of pasting gelled chassis box tilts.

The 2nd mode dish device of the present invention, lifting support is provided with dish driving mechanism and optical pickup units, this dish driving mechanism is made of turntable with chuck and Spindle Motor, this optical pickup units can coil the diametric(al) forward-reverse by above-mentioned relatively chuck, by above-mentioned lifting support is moved up and down, can carry out above-mentioned chuck to the clamping of center hole or the releasing of clamping, and, on the bottom surface of above-mentioned optical pickup units, be pasted with heat radiator, when above-mentioned lifting support has descended, above-mentioned heat radiator contacts with the base plate face of chassis box, this chassis box is the box body that covers above-mentioned dish device integral body, and the heat of above-mentioned optical pickup units is dispelled the heat the outside to above-mentioned dish device via above-mentioned chassis box.

In addition, in the dish device of above-mentioned the 2nd mode, the base plate face of the chassis box that contacts with heat radiator on sticking on the optical pickup units bottom surface tilts.

The invention effect

According to the present invention, can provide a kind of the heat that is produced on the optical pickup units is discharged to the device outside effectively by the chassis box, can prevent that thus the temperature of light picker from rising, the influence of relatively hot can make the stable dish device of action.And, having improved radiating effect, thereby adopted under the situation of exhaust apparatus, miniaturization that also can implement device can reduce the generation of noise.

Description of drawings

Fig. 1 is the skeleton view that the dish device of suction of the present invention is implemented in expression.

Fig. 2 is the skeleton view that the inside of the dish device of presentation graphs 1 constitutes.

Fig. 3 is the skeleton view that the driving mechanism of the dish device of presentation graphs 1 constitutes.

Fig. 4 is the decomposition diagram of the formation of expression loading slider.

Fig. 5 is the decomposition diagram of the formation of expression loading slider and guide plate.

Fig. 6 is the decomposition diagram of the formation of expression Poewr transmission mechanism.

Fig. 7 is the decomposition diagram of the formation of expression toothed disc.

Fig. 8 is the decomposition diagram of the formation of expression rack slide.

Fig. 9 is the formation of explanation the 1st embodiment of the present invention and the figure of function.

Figure 10 is the formation of explanation the 2nd embodiment of the present invention and the figure of function.

Figure 11 is the formation of explanation the 3rd embodiment of the present invention and the figure of function.

Figure 12 is the formation of explanation the 4th embodiment of the present invention and the figure of function.

Figure 13 is a skeleton view of representing the outward appearance of dish device in the past.

Symbol description

1 ... the dish device

2 ... the chassis box

2c ... rake

3 ... protecgulum

6 ... face plate of foundation

7 ... lifting support

8 ... the buffering supporting structure

10 ... turntable

11 ... Spindle Motor

12 ... light picker

13 ... the carriage piece

14 ... the axis of guide

15 ... the axis of guide

16 ... the helical motor

17 ... gear train

18 ... screw axis

19 ... the dish supporting arm

21 ... retainer

22 ... loading arm

24 ... connecting rod

25 ... guide arm

27 ... guide arm

29 ... guide arm

31 ... draft helical spring

33 ... connecting rod

35 ... guide arm

37 ... securing rod

39 ... wire form springs

40 ... limiter

41 ... lead

42 ... lever arm

43 ... loading slider

45 ... the 1st tilting member

47 ... the 2nd tilting member

48 ... driven sliding block

49 ... guide plate

51 ... the 3rd tilting member

52 ... connecting line

53 ... draft helical spring

54 ... linking arm

55 ... link

56 ... draft helical spring

59 ... toothed disc

60 ... limit switch

62 ... the roller support plate

63 ... draft helical spring

64 ... two rollers

65 ... rack slide

66 ... loading motor

67 ... worm screw

71 ... pin is removed in clamping

A ... driver element

B ... optical pickup units

D1 ... big footpath dish

D2 ... the path dish.

Embodiment

Below, based on accompanying drawing, describe form of implementation of the present invention in detail.In addition, in the following description, though be that embodiment is illustrated with the dish device of the suction of two kinds of different dishes that can drive size diameter,, the formation of aim of the present invention also can be applicable to only drive the dish device of big footpath dish.

Fig. 1 is the figure that dish device 1 outward appearance of suction of the present invention is implemented in expression, is formed with opening 2a in the top board central authorities of the chassis box 2 that constitutes masked state.Circumference at this opening 2a is formed with to the outstanding protuberance 2b in inside.Front end at above-mentioned chassis box 2 is fixed with protecgulum 3, and on this protecgulum 3, formation can be inserted the notch 3a of dish (below, the be called big footpath dish) D1 of 12cm and the dish of 8cm (below, be called the path dish) D2 and is used to remove the through hole 3b3c of emergency case.In addition, on protecgulum 3, have will be accommodated big footpath dish D1 or the indicator 5 used to the operating state of outside button 4 of taking out of usefulness of device and indicating panel device 1 of path dish D2.

Fig. 2 is the skeleton view of state that the top plate portion of above-mentioned chassis box 2 has been removed in expression, is equipped with face plate of foundation 6 in this chassis box 2, and the configuration status that tilts with the mediad below from this face plate of foundation 6 is provided with the driver element A of big footpath dish D1 and path dish D2.This driver element A, for the center pit of the big footpath of clamping dish D1 and path dish D2 D1a/D2a's or remove its clamp position, by known buffering supporting structure 8, lifting support 7 is connected with face plate of foundation 6 in a plurality of positions, this lifting support 7 is a bolster with protecgulum 3 sides, and its rearward end that is positioned at device central authorities can be along the upper and lower lower swing.

On the tip of above-mentioned lifting support 7,, dispose chuck 9 in big footpath dish D1 that has been stopped with moving into or the corresponding position, center of path dish D2.This chuck 9 constitutes one with turntable, and be fixed on the driving shaft of the Spindle Motor 103 under being disposed at, by this Spindle Motor 11, drive the record of implementation information or regeneration by the big footpath dish D1 of the gripper jaw 9a clamping of chuck 9 or the mode of path dish D2 with the rotation driving.

Symbol B represents the optical pickup units supported by lifting support 7, and as shown in Figure 3, the diametric(al) that light picker 12 is assembled in big footpath dish D1, path dish D2 moves back and forth on the carriage piece 13 of usefulness.The two ends of this carriage piece 13 are supported by the axis of guide 14,15 that is fixed on the lifting support 7.And above-mentioned carriage piece 13 is the front and back advance and retreat by means of the driving force of the helical motor 16 that is delivered to screw axis 18 from gear train 17.

Then, be used for a plurality of arms that big footpath dish D1, path dish D2 move into, take out of are configured in above the face plate of foundation 6 under the state that surrounds above-mentioned lifting support 7, work by means of the driving mechanism that is provided in face plate of foundation 6 the insides.In these a plurality of arms, performance maincenter function is dish supporting arm 19 in the moving into and take out of of dish, and is a spot wobble with rivet pin 20, supports the rear end side of greatly directly coiling D1, path dish D2, guarantees the correctness of the height and position in the conveyance stroke simultaneously.Therefore, on the tip, be equipped with retainer 21, utilize the maintenance groove 21a of this retainer 21 to keep big rear end side of directly coiling D1, path dish D2.

Symbol 22 is the loading arms that are used for big footpath dish D1 is moved into device inside, the connecting rod 24 that is connected by pivot pin 23 draws and swing, the center sidepiece on the front that coils D1 from the big footpath of being inserted than this loading roller 22a begins pushing, and realizing will big function of directly coiling D1 introducing device inside.

Guide arm 25 is a spot wobble with the pivot pin 26 that is installed in rotation on the face plate of foundation 6, by means of the holding components 25a that fixes with hang from the tip of this guide arm 25, support is realized the function to the given position guiding with path dish D2 by the sidepiece of the path dish D2 of conveyance.In addition, guide arm 27 is a spot wobble with rivet pin 28, by means of the holding components 27a that fixes with hang from its tip, support is by the sidepiece of the big footpath of conveyance dish D1, realize will big footpath coiling D1 to the function of given position guiding and support the sidepiece of path dish D2, with the function of path dish D2 to the given position guiding.This guide arm 27 is installed with the end of the 3rd tilting member 51 and the end of draft helical spring 53 in the inside of face plate of foundation 6 on the pivot pin 27b of its base end part.

Guide arm 29 is a spot wobble with rivet pin 30, by means of the holding components 29a that fixes with the state of erecting at its tip, support is by the sidepiece of the path dish D2 of conveyance, and realization is with function and the support big function of directly coiling the sidepiece of D1, big footpath being coiled D1 location of path dish D2 to the given position guiding.In addition, because energized by draft helical spring 31, the effect pin 33a for the connecting rod 33 of a spot wobble cooperates with the groove 29e of above-mentioned guide arm 29 with rivet pin 32, so the tip of guide arm 29 is in the state of energizing that is subjected to towards centripetal direction all the time.The guide arm 35 of gathering sill 29c with the rearward end of above-mentioned guide arm 29 by being connected from untie-sell 35b, be a spot wobble with rivet pin 36, by means of the holding components 35a that fixes with the state of erecting at its tip, support big footpath to coil the sidepiece of D1 and path dish D2, realize being located function in given position.

Symbol 37 is securing rods, is a spot wobble with rivet pin 38, and the hook 37a that forms at the tip can block the tongue piece 29b that is configured in the tip of above-mentioned guide arm 29.This securing rod 37, though energize to centripetal direction all the time by the hook 37a at 39 pairs of tips of wire form springs,, usually, because limiter 40 is being brought into play function, so static at given position.

Symbol 41 expression leads are setting along the bottom of protecgulum 3, and its end is connected on the rearward end of above-mentioned securing rod 37, and co-end 41a bends to the state of erecting, in the face of the notch 3a of protecgulum 3.Like this, will big footpath coil D1 when notch 3a inserts, because the outer peripheral edges of coiling D1 with big footpath push above-mentioned co-end 41a, so this lead 41 is laterally mobile abreast along protecgulum 3.Therefore, traction securing rod 37 makes its most advanced and sophisticated hook 37a swing towards centrifugal direction, can avoid the engaging of the tongue piece 29b of guide arm 29.

In addition, be exposed in the inscape on the plane of face plate of foundation 6, symbol 42a represents the engaging tongue piece of lever arm 42 (with reference to Fig. 3), though can realize the function of the position control of guide arm 27,, the detailed status of its action will be narrated hereinafter.In addition, pin is removed in symbol 71 expression clampings, is used for removing big footpath dish D1 and the path dish D2 state by chuck 9 clampings.

As above-mentioned, for the action of each guide arm on the plane of realizing being formed in face plate of foundation 6 etc., below, the inscape that constitutes in this face plate of foundation 6 the insides is described.Dish device 1 of the present invention, its formation is, at the inner sidepiece of device, shown in the dotted line of Fig. 3, advancing, retreating by means of the loading slider 43 that disposes along fore-and-aft direction, finish with big footpath and coil the whole of the relevant action control of D1 and path dish D2 conveyance, hereinafter, to moving each inscape of controlling as the formation of the loading slider 43 of the maincenter of inscape and by this loading slider 43.

Fig. 4 shows from the direction facing to face plate of foundation 6 the insides and overlooks the state of loading slider 43, and as shown in the figure, loading slider 43 forms with column, and its fore-end is formed with tooth bar 43a.On the other hand, at rear end part, be formed with upper end horizontal part 43b-1, lower end horizontal part 43b-2 and the middle gathering sill 43b that has the vertical component effect 43b-3 connection of step.

On above-mentioned upper end horizontal part 43b-1, be installed with rivet pin 44 for the 1st tilting member 45 of a spot wobble from untie-sell 45a, on vertical component effect 43b-3, be installed with rivet pin 46 for the 2nd tilting member 47 of a spot wobble from untie-sell 47a.And the effect pin 47b of the 2nd tilting member 47 is installed among the end through hole 48a of driven sliding block 48.

Symbol 43d represents the guiding groove of traction link 24, can realize that loading arm 22 and the conveyance that D1 is coiled in big footpath move synchronously.As shown in Figure 5, the position overlapping with this guiding groove 43d on the guide plate 49 that is fixed on the face plate of foundation 6, is formed with gathering sill 49a, be fixed on connecting rod 24 the tip be in the state that inserts guiding groove 43d and the gathering sill 49a from untie-sell 24a.Like this, can be in the gathering sill 49a interaction of given position, above-mentioned action from untie-sell 24a is controlled with the guiding groove 43d of relative forward-reverse.

In addition,, be formed with and be used to make the cam path 43e that moves up and down, should make above-mentioned lifting support 7 carry out lifting from untie-sell 7a from untie-sell 7a at sidepiece towards the lifting support 7 of loading slider 43.This cam path 43e forms continuously and guarantees that lifting support 7 is in the 43e-1 of low level portion of lower position, makes lifting support 7 risings or the rake 43e-2 that descends and guarantees that lifting support 7 is in the high-order 43e-3 of portion of high position.

Fig. 6 is a decomposition diagram of overlooking the state of the Poewr transmission mechanism that constitutes at the inner rear portion of device from the inside, forms and makes the cam path 48c that moves up and down from untie-sell 7b, realizes the lifting of the lifting support 7 of driven sliding block 48 from untie-sell 7b.This cam path 48c forms continuously and guarantees that lifting support 7 is in the 48c-1 of low level portion of lower position, makes lifting support 7 risings or the rake 48c-2 that descends and guarantees that lifting support 7 is in the high-order 48c-3 of portion of high position.

So, connect the linking arm 54 between the 1st tilting member 45 and the toothed disc described later 59, combination by means of the 2nd linking arm 54b that is connected to the 1st linking arm 54a on the 1st tilting member 45 by link 55 and energizes by draft helical spring 56, constitute telescopic structure, and the mechanism's safety can guarantee that D1 and path dish D2 conveyance are coiled in big footpath the time.

Fig. 7 is a skeleton view of overlooking the end formation of above-mentioned the 2nd linking arm 54b from the device the inside, and the through hole 19b of the rotary plate 19a of the through hole 54b-1 of the 2nd linking arm 54b, dish supporting arm 19 and the through hole 59a of toothed disc 59 are being supported by the pivot pin 57 rotatable earth's axis simultaneously.On the other hand, the center pit 19c of the rotary plate 19a of dish supporting arm 19 and the center pit 59b of toothed disc 59,20 of rivet pins that are fixed on the face plate of foundation 6 by an end are supporting, and the snap-latch piece 19d of above-mentioned rotary plate 19a faces the engaging window 59c of toothed disc 59, and becomes one.

Be formed with gear 59d on the part of the outer peripheral edges that face toward in side, be formed with switch activated stage portion 59e59f on the outer peripheral edges on the other side with the chassis box 2 of said gear dish 59.By the limit switch 60 that above-mentioned switch activated stage portion 59e, 59f connect, be provided on the bottom surface of chassis box 2 and be installed on the wiring substrate (not shown), shift knob 60a works by above-mentioned switch activated stage portion 59e59f.

Above-mentioned lever arm 42 is that fulcrum is swingingly being fixed with rivet pin 61, the engaging tongue piece 42a of this lever arm 42 is faced the surface configuration of face plate of foundation 6 from the opening of face plate of foundation 6, simultaneously, the tip of spring leaf 42b is contacted with the perforated wall 6a of face plate of foundation 6, on the roller 42c of point, produce the power of energizing of centrifugal direction.Thus, though lever arm 42 is in rest position when the sidewall state of contact of this roller 42c and driven sliding block 48, but, when driven sliding block 48 is slided, roller 42c is pressed against on its effect sheet 48d, thereby make lever arm 42 be a spot wobble with rivet pin 61, engaging tongue piece 42a moves towards centrifugal direction.

Then, the mechanism that makes guide arm 25 swing usefulness is described.This guide arm 25, its pivot pin 26 that becomes the cardinal extremity of swing fulcrum is arranged on the back side of face plate of foundation 6 with extending, is fixed with roller support plate 62 in its end.On this roller support plate 62, as shown in Figure 3, open and to be provided with draft helical spring 63, in same figure, the power of energizing of effect along clockwise direction, whereby, guide arm 25 tilts towards centripetal direction.Be provided on the above-mentioned roller support plate 62 two rollers 64 as shown in Figure 8, constitute and to make major diameter part 64a and the coaxial structure of small diameter portion 64b.

In this Fig. 8, along the rack slide 65 that the side wall inner surface of chassis box 2 sets, have the tooth bar 65a with the gear 59d engagement of toothed disc 59, advance, retreat synchronously with the rotation of toothed disc 59.Bottom at the pars intermedia of rack slide 65 forms low level countervane 65b, on top forms high-order countervane 65c, and low level countervane 65b is to the major diameter part 64a guiding of above-mentioned pair of roller 64, and high-order countervane 65c leads to small diameter portion 64b.

The organize factor of Gou Chenging like this, though move by means of the forward-reverse of loading slider 43,, this driving mechanism is provided in the corner part of device the inside as shown in Figure 3.And the revolving force as the worm screw 67 of the output shaft of the loading motor 66 of the power source of driving mechanism by means of bidentate wheel 686970 gear trains that constituted, transmits while slow down to gear wheel in large diameter from small-diameter gear in turn.And, from the small diameter gear transmission of drive force of the bidentate wheel 70 of the tooth bar 43a of loading slider 43 engagement, make loading slider 43 front and back advance and retreat.

In the formation of the dish device of above explanation, lifting support 7 is a bolster with protecgulum 3 one sides, and the rearward end that is positioned at device central authorities is swung along the vertical direction, therefore, makes the clampings of coiling D1 or path dish D2 by 9 pairs of big footpaths of chuck become possibility.Like this, under the state of the notch 3a insertion dish of protecgulum 3, lifting support 7 descends in advance in wait, and under the state of driving-disc, lifting support 7 rises.

In this case, when lifting support 7 had descended, optical pickup units B must be in the position of protecgulum 3 one sides.This be because, be in the words of chuck 9 one sides as optical pickup units B, when then lifting support 7 has descended, the bottom surface of optical pickup units B can contact with the base plate of chassis box 2, make the gap of base plate of the bottom surface of optical pickup units B and chassis box 2 become big, in protecgulum 3 one sides, optical pickup units B leaves chuck 9, is in primary position.

Given this, the invention enables at optical pickup units B and arrive primary position and lifting support 7 when having descended, the heat of optical pickup units B can pass to chassis box 2, thereby has improved radiating effect.In the formation shown in Figure 9 of the 1st embodiment, on base plate, be formed with rake 2c to inner bulging corresponding to the chassis box of the primary position of optical pickup units B, on the dip plane of this rake 2c, be pasted with heat radiator S.This heat radiator S is a main material with silicone or graphite etc., has improved heat conductivity, so, Jiao Zhuan thing preferably with flexibility.

Like this, shown in Fig. 9 (A), the dish that installs is taken out of, optical pickup units B moves to primary position shown in Fig. 9 (B), and afterwards, shown in Fig. 9 (C), when lifting support 7 descended, the bottom surface of optical pickup units B was carried out face with heat radiator S and contacted shown in Fig. 9 (B).Whereby, the heat of optical pickup units B is transmitted and heat radiation to chassis box 2 by rake 2c.

In the formation shown in Figure 10 of the 2nd embodiment, on the bottom surface of optical pickup units B, be pasted with heat radiator S (with reference to Fig. 3), in this case, also can with the formation of Fig. 9 similarly, when lifting support 7 descended, shown in Figure 10 (C), heat radiator S carried out face with rake 2c and contacts, the heat of optical pickup units B is transmitted to chassis box 2, dispelled the heat.

Yet, in the dish device of the embodiment of above explanation, be made when having descended with lifting support 7 its inclination mode the dish device as an example, still, in the dish device of the mode that lifting support 7 moves up and down with horizontality, also can implement the present invention.In the formation shown in Figure 11 of the 3rd embodiment (A), in the dish device of the mode that lifting support 7 moves up and down with horizontality, on base plate face, be pasted with heat radiator S corresponding to the chassis box 2 of the primary position of optical pickup units B.

Whereby, shown in Figure 11 (A), the dish that installs is taken out of, optical pickup units B moves to primary position, afterwards shown in Figure 11 (B), when lifting support 7 descended with horizontality, the bottom surface of optical pickup units B was carried out face with heat radiator S and is contacted shown in Figure 11 (C).Whereby, the heat of optical pickup units B is transmitted and dispelled the heat to chassis box 2.

In the formation shown in Figure 12 of the 4th embodiment, on the bottom surface of optical pickup units B, be pasted with heat radiator S, in this case, also can with the formation of Figure 11 similarly, when lifting support 7 descended with horizontality, shown in Figure 12 (C), heat radiator S carried out face with the base plate of chassis box 2 and contacts.Whereby, the heat of optical pickup units B is transmitted to chassis box 2, dispelled the heat.

Like this,, the heat of optical pickup units B can be transmitted to chassis box 2 effectively, can be prevented effectively that temperature from rising according to the present invention.Like this,, also can dispel the heat, can guarantee the operating stably of light picker with high-level efficiency even suction will install inner airtight dish device like that.

Claims (4)

1. a dish device is characterized in that,

Be provided with dish driving mechanism and optical pickup units at lifting support; This dish driving mechanism is made of the turntable with chuck and Spindle Motor; This optical pickup units can coil the diametric(al) forward-reverse by relatively above-mentioned chuck; By above-mentioned lifting support is moved up and down; Can carry out above-mentioned chuck to the clamping of center hole or the releasing of clamping; And; On the base plate face of the chassis box corresponding with making primary position after above-mentioned optical pickup units leaves chuck; Be pasted with fin; This chassis box is the box body that covers above-mentioned dish device integral body

When above-mentioned lifting support had descended, the bottom surface of above-mentioned optical pickup units contacted with above-mentioned heat radiator, and the heat of above-mentioned optical pickup units is dispelled the heat the outside to above-mentioned dish device via above-mentioned chassis box.

2. according to the dish device of claim 1 record, it is characterized in that the base plate face of pasting gelled chassis box tilts.

3. a dish device is characterized in that,

Lifting support is provided with dish driving mechanism and optical pickup units, this dish driving mechanism is made of turntable with chuck and Spindle Motor, this optical pickup units can coil the diametric(al) forward-reverse by above-mentioned relatively chuck, by above-mentioned lifting support is moved up and down, can carry out above-mentioned chuck to the clamping of center hole or the releasing of clamping, and, on the bottom surface of above-mentioned optical pickup units, be pasted with heat radiator

When above-mentioned lifting support had descended, above-mentioned heat radiator contacted with the base plate face of chassis box, and this chassis box is the box body that covers above-mentioned dish device integral body, and the heat of above-mentioned optical pickup units is dispelled the heat the outside to above-mentioned dish device via above-mentioned chassis box.

4. according to the dish device of claim 3 record, it is characterized in that the base plate face of the chassis box that contacts with heat radiator on sticking on the optical pickup units bottom surface tilts.

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