CN2906829Y - Damping and noise-suppressing hard disk drive - Google Patents
Damping and noise-suppressing hard disk drive Download PDFInfo
- Publication number
- CN2906829Y CN2906829Y CN 200620057638 CN200620057638U CN2906829Y CN 2906829 Y CN2906829 Y CN 2906829Y CN 200620057638 CN200620057638 CN 200620057638 CN 200620057638 U CN200620057638 U CN 200620057638U CN 2906829 Y CN2906829 Y CN 2906829Y
- Authority
- CN
- China
- Prior art keywords
- vibration
- hard disk
- loam cake
- disk drive
- noise
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Moving Of Heads (AREA)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Abstract
The utility model relates to a hard disc driver with the functions of reducing vibration and noise, comprising a base and a lid on the base; the lid is combined with a soft vibration absorbing part and a stiff vibration reducing part. The soft vibration absorbing part is arranged between the stiff vibration reducing part and the lid. The lid forms a collecting groove. The soft vibration absorbing part is overlapped with the stiff vibration reducing part to be put into the collecting groove. The two sides of soft vibration absorbing part are glued to bind the stiff vibration reducing part to stick on the lid, thereby enabling vibration absorption and noisy reduction.
Description
[technical field]
The utility model relates to a kind of vibration and noise reducing hard disk drive, can remove the hard disk drive of noise when specifically relating to a kind of vibration damping.
[background technology]
Continuous progress along with computer technology, from then on hard disk drive has also opened new development chapter, it is as the core that has become computer memory system based on the combination of magnetic head, storage medium, control circuit, CD-ROM drive motor, and volume constantly dwindles, capacity constantly increases, and Performance And Reliability also constantly is improved.The hard disk drive noiseproof feature becomes the reference that the consumer selects hard disk drive thereupon.
CD-ROM drive motor comprises Spindle Motor and voice coil motor.The noise of hard disk mainly comes from voice coil motor that drives head stack and the Spindle Motor that drives disc sheet, and increasing also of disc can increase noise simultaneously.What early stage Spindle Motor adopted is ball bearing, along with improving constantly of the rotation speed of hard disk, has brought series of negative influences such as wearing and tearing aggravation, temperature rising, noise increase, and at present a lot of producers bring into use fdbm.Traditional hard disk drive structure comprises a hard disk base and the loam cake by the abundant sealed base of screw, in the space that described voice coil motor and Spindle Motor all are housed in base and loam cake and are surrounded.Spindle Motor is fixed on the base, and the vibration of its high speed rotating passes to loam cake by the surface of contact between screw or loam cake and the base.And the head stack that voice coil motor drives is installed in the fixing rotating shaft in two ends, described rotating shaft one end is fixed on the base, the other end then covers last by the screw locking, when not stall under the driving of head stack at voice coil motor was moving, the vibration that head stack produces also can be got on by the loam cake that rotating shaft is delivered to strength of materials weakness.Loam cake is under the exciting of a plurality of vibration sources, and because of loam cake is Metal Flake structure, the strength of materials and material natural frequency are all lower, can vibrate or take place resonance along with the vibration of CD-ROM drive motor, produces bigger noise.
The noise of hard disk is that the rotating speed with hard disk is directly proportional: class of the every raising of rotating speed, sound level will correspondingly improve.Along with the rotation speed of hard disk improves constantly, the problem that solves noise is extremely urgent.
[summary of the invention]
The purpose of this utility model is to remove the hard disk drive of noise when proposing a kind of vibration damping.
The technical scheme that realizes above-mentioned purpose is: a kind of vibration and noise reducing hard disk drive comprises a base and is fastened on the loam cake of base.Described loam cake is in conjunction with a soft absorbing part and a rigidity vibration-damped component, and described soft absorbing part is between rigidity vibration-damped component and loam cake.
Described loam cake forms an accepting groove.Described soft absorbing part and rigidity vibration-damped component are superimposed together and are installed in the described accepting groove.Described soft absorbing part two sides scribbles viscose, the rigidity vibration-damped component is bonded in cover.
The utility model adopts technique scheme, its beneficial technical effects is: 1) the utility model vibration and noise reducing hard disk drive is by bonding one soft absorbing part and rigidity vibration-damped component, absorb and reduced the vibration of loam cake, avoid loam cake under the exciting of CD-ROM drive motor vibration, resonance phenomena to take place simultaneously, reduced the noise that hard disk drive produces.2) the utility model vibration and noise reducing hard disk drive is simple in structure.3) the utility model vibration and noise reducing hard disk drive is easy to assembly.
[description of drawings]
Below by embodiment also in conjunction with the accompanying drawings, the utility model is described in further detail:
Fig. 1 is the three-dimensional exploded view of the utility model vibration and noise reducing hard disk drive.
Fig. 2 is the loam cake of the utility model vibration and noise reducing hard disk drive and the constitutional diagram of damping element.
Fig. 3 is the loam cake of the utility model vibration and noise reducing hard disk drive and the three-dimensional exploded view of damping element.
[embodiment]
Please refer to Fig. 1, a kind of vibration and noise reducing hard disk drive is used to absorb and reduce the vibration of hard disk drive, thereby reduces the noise that driver produces.Described vibration and noise reducing hard disk drive comprise a base 70, one and base 70 fully the loam cakes 10, the disk 30 of some storage data, the head stack 40 and of the some magnetic heads 46 that read and write data of carrying of sealing are installed in the control circuit board of base 70 belows.
Form a sealing receiving space between described base 70 and loam cake 10, described sealing receiving space is accommodated the head stack 40 of the disk 30 of storage data, the magnetic head 46 that reads and writes data and carrying magnetic head 46.In the present embodiment, disc driver has two disks 30, and each disk 30 is coated with magnetic medium.Described base 70 also is equipped with the contact maker (indicating) of a binding control circuit board, the data-signal of magnetic head read-write in the described colligator transmission sealing receiving space.
The described base disk space that caves in, a motor 72 is installed at described disk space center, and described motor 72 has a stator and a propeller boss (figure does not show).Described stator twines some solenoids, and described propeller boss is provided with a magnetosphere around the coil of stator.The energising solenoid of the magnetosphere induction stator of described propeller boss also drives described propeller boss high speed rotating.Described two disks 30 are installed on the propeller boss of Spindle Motor 72, two disks 30 by a packing ring spaced apart.Disk 30 tops, top are installed a compressing tablet 32 by screw at motor 72 propeller boss, and described compressing tablet 32 under the effect of screw deformation takes place, and produce deformation force disk 30 is fixed, thereby guarantee that deformation does not take place disk 30 cards.
Described head stack 40 rotates (figure does not show) on the stationary shaft that is fixed on base 70 by bearing, in the present embodiment, described head stack 40 comprises the magnetic induction coil 42 that is installed in head stack 40 afterbodys and is used for hanging the cantilever 44 of described magnetic head 46.Described coil 42 is between magnetic patch on one 52 and following magnetic patch 50, and the coil 42 of energising is rotated by long-range navigation taste power under magnetic field to drive cantilever 44 simultaneously to rotate, thereby cue head 46 is finished and sought rail.After magnetic head 46 reads signal, pass the signal to a nearest signal amplification circuit that is installed in head stack 40, the signal that reads is amplified.Amplifying signal is sent to the control circuit board that is installed in base 70 belows by a flexible circuit board, is handled by control circuit board.Described head stack 40 1 sides also are provided with a head stack locking device 60.When disc driver is vibrated or impacts, the cantilever 44 of the head stack 40 that is supported by stationary shaft can swing, and causes magnetic head 46 and data in magnetic disk to sustain damage.At this moment, described head stack locking device 60 is used for blocking head stack 40 and is vibrated the rotation that meets accident to prevent it.
Please refer to Fig. 2 and Fig. 3, a described loam cake 10 and a soft absorbing part 15 and rigidity vibration-damped component 20 are combined.Described loam cake 10 top depression form an accepting groove 12, and described accepting groove 12 roughly is circular, increase the floorage of accepting groove under the enabled condition of the space of disc driver as much as possible.Described loam cake 10 is also further offered a fixed orifice 14, and described fixed orifice 14 is used for the stationary shaft two ends of rotation support head stack 40 are fixed.
The vibration that described soft absorbing part 15 is used for absorbing hard disk be connected loam cake 10 and rigidity vibration-damped component 20, thereby reach the purpose that the vibration damping absorbing reduces noise simultaneously.Described soft absorbing part 15 shapes are similar to the accepting groove 12 of loam cake 10, are the rubber-like damping material.Has the material of better shock attenuation result as the soft damping material of PVC or other.Described soft absorbing part 15 both sides all scribble viscose, and the viscose of a side is used for described soft absorbing part 15 is bonded in the loam cake 10 top accepting grooves 12, and the viscose of opposite side is used for described rigidity vibration-damped component 20 is bonded on the described soft absorbing part 15.After assembling was finished, described soft absorbing part 15 was between rigidity vibration-damped component 20 and loam cake 10.
The shape of described rigidity vibration-damped component 20 is similar to the accepting groove 12 of loam cake 10, is used for increasing the strength of materials of loam cake 10, makes better antidetonation of laminar loam cake 10, thereby reduces the generation of noise.Described rigidity vibration-damped component 20 can be magnesium alloy or aluminium alloy or stainless steel material.Described soft absorbing part 15 and rigidity vibration-damped component 20 are superimposed together and are installed in the described accepting groove 12.
In disk when work,, Spindle Motor 72 and the head stack 40 of seeking rail be high-speed rotation all.Spindle Motor 72 is because be fixed on the base 70, the vibration that its high speed rotating produces passes to loam cake 10 by the surface of contact between screw or loam cake 10 and the base 72, the soft absorbing part 15 absorption portion vibration of applying loam cake 10, simultaneously because rigidity vibration-damped component 20 has increased the material shock strength of loam cake 10, so reduced loam cake 10 owing to the vibration that the vibration of motor 72 causes, also reduced the noise that hard disk drive produces simultaneously.
Claims (4)
1, a kind of vibration and noise reducing hard disk drive comprises a base and is fastened on the loam cake of base that it is characterized in that: described loam cake is in conjunction with a soft absorbing part and a rigidity vibration-damped component, and described soft absorbing part is between rigidity vibration-damped component and loam cake.
2, vibration and noise reducing hard disk drive according to claim 1, it is characterized in that: described loam cake has an accepting groove.
3, vibration and noise reducing hard disk drive according to claim 2 is characterized in that: described soft absorbing part and rigidity vibration-damped component are superimposed together and are installed in the described accepting groove.
4, vibration and noise reducing hard disk drive according to claim 2 is characterized in that: described soft absorbing part two sides scribbles viscose, the rigidity vibration-damped component is bonded in cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620057638 CN2906829Y (en) | 2006-04-07 | 2006-04-07 | Damping and noise-suppressing hard disk drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620057638 CN2906829Y (en) | 2006-04-07 | 2006-04-07 | Damping and noise-suppressing hard disk drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2906829Y true CN2906829Y (en) | 2007-05-30 |
Family
ID=38115471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620057638 Expired - Fee Related CN2906829Y (en) | 2006-04-07 | 2006-04-07 | Damping and noise-suppressing hard disk drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2906829Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376856A (en) * | 2013-08-13 | 2015-02-25 | 希捷科技有限公司 | Component configured to stiffen an electric motor assembly |
-
2006
- 2006-04-07 CN CN 200620057638 patent/CN2906829Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376856A (en) * | 2013-08-13 | 2015-02-25 | 希捷科技有限公司 | Component configured to stiffen an electric motor assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070530 Termination date: 20140407 |