CD ROM drive device with noise-reducing effect
[technical field]
The invention relates to a kind of CD ROM drive device, and particularly relevant for a kind of CD ROM drive device with noise-reducing effect.
[background technology]
CD ROM drive device is one of very important peripheral device of present computer.No matter be that DVD, CD-ROM or CD-R/W are the indispensable CD ROM drive devices of computer, be used for reading the data of laser disc Storage Media or write data on the laser disc Storage Media.
The employed CD ROM drive device of known desktop computer has the design of video disc clamper usually.When carrying a laser disc Storage Media on the load bearing seat of CD-ROM device, the attraction of video disc clamper and load bearing seat mat magnetic force is held on the laser disc Storage Media in the middle of both.Then, load bearing seat can be driven by the Spindle Motor in the CD ROM drive device and rotate, and video disc clamper, load bearing seat and the laser disc Storage Medias that are held in the middle of both rotate synchronously, makes that read/write head can reading of data or write data to the laser disc Storage Media.
Yet when CD ROM drive device put in storage (action in the tray retracted CD-ROM device), load bearing seat had the action that a rising engages with the video disc clamper.Because the attraction of magnetic force, the moment of joint, the video disc clamper can clash into load bearing seat fast and produce the noise of bump.The noise content size that above-mentioned action produced is a maximum with the action of putting in storage when CD ROM drive device is not put into laser disc especially.Under the situation that environmental consciousness comes back now, this problem more needs special the attention and processing.
[summary of the invention]
Therefore purpose of the present invention is exactly that a kind of CD ROM drive device with noise-reducing effect is being provided.
Above-mentioned purpose according to the present invention proposes a kind of CD ROM drive device that lowers parts collision noise effect that has, and is used for reading a laser disc Storage Media.This CD ROM drive device comprises load bearing seat, casing and video disc clamper.Load bearing seat system is in order to place the laser disc Storage Media.Groove on the casing is provided with a holes.The video disc clamper is arranged at holes, and load bearing seat system when rising contacts with the video disc clamper, and load bearing seat is to separate with the video disc clamper when contact position descends.The video disc clamper more comprises pedestal and elastic cantilever.At least one depressed area is positioned on the pedestal, and the depressed area is faced mutually with load bearing seat.At least one elastic cantilever is linked to pedestal, and one of elastic cantilever end has a salient point.Salient point on the elastic cantilever and load bearing seat mutually in the face of and salient point between depressed area and load bearing seat.
Said base more comprises first pair of suction portion, and the depressed area is between first pair of suction portion and salient point.Above-mentioned load bearing seat more comprises second pair of suction portion, and when the laser disc Storage Media put in storage, load bearing seat rose, first pair of suction portion and second pair of mutual magnetic attraction of suction portion.If the material of first pair of suction portion is the alloy of iron, cobalt, nickel or above-mentioned metal, the material of second pair of suction portion can be magnet.If the material of first pair of suction portion is a magnet, the material of second pair of suction portion can be the alloy of iron, cobalt, nickel or above-mentioned metal.Perhaps, the material of first pair of suction portion and second pair of suction portion is all magnet.
From the above, use the present invention's the CD ROM drive device that reduces the noise effect that has, the video disc clamper that it has the elastic cantilever design can cushion engaging rapidly of load bearing seat and video disc clamper, eliminate the bulging effect that plane impact produced, and reach the effect that noise lowers.
[description of drawings]
State with other purposes, feature, advantage and embodiment and can become apparent, appended graphic being described in detail as follows on the present invention for allowing:
Fig. 1 is to be the structural drawing that illustrates according to a kind of video disc clamper of a preferred embodiment of the present invention;
Fig. 2 system illustrates the sectional view of a kind of CD ROM drive device (the dish storage media state of not giving out light) according to a preferred embodiment of the present invention;
Fig. 3 system illustrates the sectional view of a kind of CD ROM drive device (thickness of laser disc Storage Media is the 0.85mm state) according to another preferred embodiment of the present invention; And
Fig. 4 system illustrates the sectional view of a kind of CD ROM drive device (thickness of laser disc Storage Media is the 1.2mm state) according to the another preferred embodiment of the present invention.
[embodiment]
As mentioned above, the invention provides one and have the CD ROM drive device that reduces the noise effect, the video disc clamper of buffer structure can be provided by design one.When the moment that the load bearing seat of CD ROM drive device engages with the video disc clamper, the buffer structure of video disc clamper can slow down because of both magnetic force inhales the collision rapidly that is produced mutually, and then reduces rapidly and engage the noise that (bump) produced.Below the mat preferred embodiment is illustrated details of the present invention.
Please refer to Fig. 1 and Fig. 2, it illustrates the structural drawing according to a kind of video disc clamper of a preferred embodiment of the present invention.This diagram illustrates the structural design of the one side that video disc clamper 110 engages with load bearing seat.On the pedestal 112 of video disc clamper,, design three elastic cantilever 114a/114b/114c as buffer structure near the part at center.When three elastic cantilever 114a/114b/114c contact with load bearing seat 130, can be toward three depressed area 112a/112b/112c inner bending distortion.When both did not contact, three elastic cantilever 114a/114b/114c can return to original position.
Therefore, video disc clamper 110 need have the characteristic that elasticity and endurance are destroyed in the selection of elastic cantilever part material, make three elastic cantilever 114a/114b/114c can accept repeatedly joint bump after, can have the ability that buffering engages rapidly.
In addition, three an elastic cantilever 114a/114b/114c wherein end are connected with pedestal 112, and another free end has salient point 116a/116b/116c, and making load bearing seat and video disc clamper joint is the top of salient point 116a/116b/116c.Salient point 116a/116b/116c preferred shape is the semi-round ball structure, makes originally and causes whole plane impact sound (because of the bulging effect that cause on whole plane, making sound because of the effect of amplification is arranged) by impulse force, because of the reason of 3 contacts can effectively reduce.
Although three elastic cantilevers are used in above-mentioned preferred embodiment, the elastic cantilever of other quantity also can produce the effect that reduces noise.
Please refer to Fig. 2, it illustrates the sectional view of a kind of CD ROM drive device (the dish storage media state of not giving out light) according to a preferred embodiment of the present invention.Video disc clamper 110 is positioned at the holes 102a of groove 104 of the casing 102 of CD-ROM device 100.When load bearing seat 130 does not engage with video disc clamper 110 (both separate), the edge of video disc clamper 110 leans against on the holes 102a casing 102 on every side (this state is not illustrated in drawing).When load bearing seat 130 engages with video disc clamper 110 (as shown in Figure 2, both contacts), second pair of suction portion 132 of load bearing seat 130 contacts with salient point 116a, makes elastic cantilever 114a to depressed area 112a flexural deformation.Therefore, under this state, salient point 116a is between depressed area 112a and load bearing seat 130.Depressed area 112a is between first pair of suction portion 118 and salient point 116a.Because attracting each other of first pair of suction portion 118 and second pair of suction portion 132 both magnetic force makes load bearing seat 130 engage with video disc clamper 110 and clamping laser disc Storage Media.
Fig. 2 system illustrates the CD-ROM device dish storage media state of not giving out light, and its clamping gap is about 0.8mm.If the alloy of material iron, cobalt, nickel or the above-mentioned metal of above-mentioned first pair of suction portion 118, then the material of second pair of suction portion 132 can be magnet, and making wins can attract each other to suction portion 118 and second pair of suction portion 132.If if the material magnet of above-mentioned first pair of suction portion 118, then the material of second pair of suction portion 132 can be the alloy of iron, cobalt, nickel or above-mentioned metal, making wins can attract each other to suction portion 118 and second pair of suction portion 132.Perhaps, the material of second pair of suction portion 132 and first pair of suction portion 118 is all magnet, and then both must attract each other.
Please refer to Fig. 3, it illustrates the sectional view of a kind of CD ROM drive device (thickness of laser disc Storage Media is the 0.85mm state) according to another preferred embodiment of the present invention.In the time of in the middle of laser disc Storage Media 120 (for example thickness is 0.85mm) is held on by load bearing seat 130 and video disc clamper 110, Spindle Motor 140 drives video disc clampers 110, load bearing seat 130 and is held on laser disc Storage Medias 120 rotations in the middle of both, makes that read/write head can reading of data or write data to the laser disc Storage Media.
Please refer to Fig. 4, it illustrates the sectional view of a kind of CD ROM drive device (thickness of laser disc Storage Media is the 1.2mm state) according to the another preferred embodiment of the present invention.This preferred embodiment and above-mentioned preferred embodiment difference are that CD ROM drive device 100 reads thicker laser disc Storage Media 120 (thickness is 1.2mm).By three above-mentioned preferred embodiments as can be known, video disc clamper with elastic cantilever design can adapt to the laser disc Storage Media of all thickness and not have the state of laser disc Storage Media, and all can reduce the noise that moment produced that load bearing seat and video disc clamper engage rapidly.Tested confirmation, but the design noise-decreasing amount of above-mentioned preferred embodiment reaches 5.87db.
By the invention described above preferred embodiment as can be known, use the present invention's the CD ROM drive device that reduces the noise effect that has, it has the video disc clamper of elastic cantilever design, can cushion engaging rapidly of load bearing seat and video disc clamper, eliminate the bulging effect that plane impact produced, and reach the effect that noise lowers.
Though the present invention discloses as above with a preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the invention; when can doing various changes and retouching, so the present invention's protection domain attached claim person of defining after looking is as the criterion.