CN2791815Y - Servo writing-in device of hard-disc driver - Google Patents
Servo writing-in device of hard-disc driver Download PDFInfo
- Publication number
- CN2791815Y CN2791815Y CN 200420084586 CN200420084586U CN2791815Y CN 2791815 Y CN2791815 Y CN 2791815Y CN 200420084586 CN200420084586 CN 200420084586 CN 200420084586 U CN200420084586 U CN 200420084586U CN 2791815 Y CN2791815 Y CN 2791815Y
- Authority
- CN
- China
- Prior art keywords
- write device
- damping layer
- servo write
- servo
- hard disk
- 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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- Supporting Of Heads In Record-Carrier Devices (AREA)
- Moving Of Heads (AREA)
Abstract
The utility model discloses the servo writing device of a hard disk driver, which comprises a servo writing device top component (1), a granite basal plate (4), a constraining damping layer (3) and the roof plate (2) of the servo writing device. The constraining damping layer (3) is positioned between the roof plate (2) and the basal plate (4). The constraining damping layer (3) is respectively glued with the roof plate (2) and the basal plate (4) through adhesives on the two surfaces of the constraining damping layer (3). The use of the constraining damping layer can reduce the vibration and the shock of the servo writing device of the hard disk driver when the servo writing device carries out high-speed writing operation.
Description
Technical field
The utility model relates to the field that manufactures and designs of computing machine and electron device, specifically, relates to manufacturing and designing of the servo write device of hard disk drive.
Background technology
Servo write device is a treatment facility important in the hard disk drive.The major function of servo write device is that servo pattern is write disk at a high speed.Because in servo fashionable vibration and direct location and the performance that influences servo head of vibrations write, the vibration and the vibrations that how to reduce the servo track write device are key components of hard disk drive engineering duty.
Restraint layer is widely used in space industry for many years, fields such as Medical Devices and office equipment, but be not used for hard disk drive.The principle of this restraint layer is as follows: restraint layer is converted to heat energy with some mechanical vibrational energy.In this sandwich construction, when restraint layer system warpage, the damping material layer is forced in the material section of closing on and forms shearing strain in vibration.This mutual shearing strain in sandwich material changes into low heat of friction with vibration and eliminates.
The utility model is with vibration and the vibrations of restraint layer to reduce above-mentioned servo write device.
The utility model content
The purpose of this utility model is at above-mentioned problems of the prior art, i.e. vibration when servo write device write-in operation at high speed and shake big defective, provide a kind of simple in structure, cost is low, and can effectively reduce at the vibration in when work and the servo write device of hard disk drive of vibrations.
The technical scheme of the invention is to realize like this, the servo write device of one hard disk drive, it comprises servo write device top assembly, top board, substrate, described top assembly is installed on the described top board, it is characterized in that: between described top board and substrate, establish a restriction damping layer, described restriction damping layer two surfaces are provided with bonding agent, the bonding agent by being located at its two surface respectively with described top board and substrate bonding.The thickness of constrained layer damping layer and contact area depend on the performance requirement of servo track write device system.
The beneficial effect of the invention is: utilize restraint layer some mechanical vibrational energy can be converted to the principle of heat energy, between the top board of servo write device and substrate, be provided with one simple in structure, the damping layer that cost is low, vibration and vibrations in the time of can effectively reducing the work of servo write device.
Description of drawings
Fig. 1 is the assembly structure synoptic diagram with servo write device of restriction damping layer;
Fig. 2 is the mounting structure synoptic diagram of traditional servo write device.
The bis explanation
1. servo write device top assembly
2. take over a business
3. restriction damping layer
4. substrate
Embodiment
Figure 2 shows that the scheme of installation of traditional servo write device, by fixed screw, top board is directly installed on the grouan substrate, this project organization, and vibration and vibrations will be directly delivered to top assembly 1 from substrate 4.
As shown in Figure 1, the ground floor of servo write device of the present utility model is a grouan substrate 4, and the second layer is the thermoplastic damping material that bonding agent is arranged on two surfaces, and promptly restriction damping layer 3, and the 3rd layer is the top board 2 of servo write device.
The thickness of described restriction damping layer and contact area can be set according to the performance requirement of servo write device system.
Adopt restriction damping layer, servo write device is write in servo tracking fashionablely can obviously improve its performance, with the problem that influences that reduces to vibrate or shake.Its result will reduce tunnel skill magnetic resistance (TMR, Tunneling MagnetoResistive) and improve the performance of servo head.In addition, it also can reduce the processing and fabricating cost of grouan substrate 4 and top board 2.
Structure by comparison diagram 1 and Fig. 2 as can be seen, therefore the present invention, adopts structure of the present invention can reduce vibration and the vibrations of servo write device when write operation owing to have the restriction damping layer of thermoplast damping material.
Given detailed description and explanation although be contained in the embodiment of aim of the present invention at this, those of skill in the art will design other various embodiments that still are contained in these aims easily.
Claims (4)
1, a kind of servo write device of hard disk drive, it comprises
Servo write device top assembly (1), top board (2), substrate (4),
Described top assembly (1) is installed on the described top board (2), it is characterized in that: establish a restriction damping layer (3) between described top board (2) and substrate (4).
2, the servo write device of hard disk drive as claimed in claim 1, described restriction damping layer comprise the thermoplastic of bonding agent damping material on two surfaces.
3, the servo write device of hard disk drive as claimed in claim 1, described substrate is a granite slab.
4, the servo write device of hard disk drive as claimed in claim 1 is set the contact area of described restriction damping layer according to the performance requirement of servo write device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420084586 CN2791815Y (en) | 2004-08-05 | 2004-08-05 | Servo writing-in device of hard-disc driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420084586 CN2791815Y (en) | 2004-08-05 | 2004-08-05 | Servo writing-in device of hard-disc driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2791815Y true CN2791815Y (en) | 2006-06-28 |
Family
ID=36807871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420084586 Expired - Fee Related CN2791815Y (en) | 2004-08-05 | 2004-08-05 | Servo writing-in device of hard-disc driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2791815Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104822786A (en) * | 2012-09-27 | 2015-08-05 | 艾利丹尼森公司 | Vibration damping adhesives |
-
2004
- 2004-08-05 CN CN 200420084586 patent/CN2791815Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104822786A (en) * | 2012-09-27 | 2015-08-05 | 艾利丹尼森公司 | Vibration damping adhesives |
| US9920225B2 (en) | 2012-09-27 | 2018-03-20 | Avery Dennison Corporation | Vibration damping adhesives |
| CN104822786B (en) * | 2012-09-27 | 2018-05-15 | 艾利丹尼森公司 | Vibration damping adhesive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |