CN1299296C - Disk unit having air flow adjusting mechanism and thin plate member incorporated thereto - Google Patents
Disk unit having air flow adjusting mechanism and thin plate member incorporated thereto Download PDFInfo
- Publication number
- CN1299296C CN1299296C CNB028170377A CN02817037A CN1299296C CN 1299296 C CN1299296 C CN 1299296C CN B028170377 A CNB028170377 A CN B028170377A CN 02817037 A CN02817037 A CN 02817037A CN 1299296 C CN1299296 C CN 1299296C
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- Prior art keywords
- pieces
- sheet
- housing
- disk drive
- memory disc
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Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/60—Fluid-dynamic spacing of heads from record-carriers
- G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/16—Supporting the heads; Supporting the sockets for plug-in heads
- G11B21/20—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier
- G11B21/21—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier with provision for maintaining desired spacing of head from record carrier, e.g. fluid-dynamic spacing, slider
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
- G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
- G11B33/1406—Reducing the influence of the temperature
- G11B33/1413—Reducing the influence of the temperature by fluid cooling
- G11B33/142—Reducing the influence of the temperature by fluid cooling by air cooling
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
- G11B33/08—Insulation or absorption of undesired vibrations or sounds
Abstract
A disk drive 10 includes a thin-plate member 38 fixedly attached at a desired location to an inner wall surface 36 defining a recess 24 of a casing 12. The thin-plate member 38 includes a substrate layer having a major side on which a plurality of minute protrusions are formed and an adhesive layer attached fixedly on the back side of the substrate layer. The thin-plate member 38 is fixedly attached on the inner wall surface 36 of the casing 12 through the adhesive layer with the minute protrusions being exposed to the recess 24 of the casing 12. The thin-plate member 38 has a flexibility permitting it to follow the shape of the inner wall surface 36 of the casing 12. The thin-plate member 38 reduces an interfacial friction caused between the inner wall surface 36 of the casing and the airflow generated around the storage disk 16 in rotation.
Description
(1) technical field
The present invention relates to a disk drive from memory disc read and write data, be specifically related to have a disk drive of a gas flow modulation mechanism that when the memory disc high-speed rotation, is adjusted in the air-flow that produces around it.The invention still further relates to and be combined in a pieces of sheet that is used as a gas flow modulation mechanism in this disk drive.
(2) background technology
In a disk drive as an ASU auxiliary storage unit of an information handling system, various disk-shaped storage medium (in this instructions, being called memory disc) any, for example a disk, a CD and-magnetic-CD high-speed rotation all, one head is carried out followed the tracks of operation, this operation makes head follow many track records that form with one heart on the recording surface of indicator, is used for the read and write data.The tracking performance of head depends on the bearing accuracy in the servo control operation of an actuator that supports this head.Especially in recent years, along with the remarkable increase of the recording density of memory disc, increase day by day for the requirement of the bearing accuracy of actuator.
Carry out the tracking of pin-point accuracy for actuator and operate, the external disturbance that requires to influence actuator operated is reduced to minimum, eliminates the vibration of memory disc simultaneously in rotation as much as possible.For example, the air communication that produces around memory disc in high-speed rotation is crossed the inner wall surface of the housing that collides disk drive and is become turbulent flow and the vibration that may cause actuator and memory disc.The vibration of actuator and memory disc is to influence the head bearing accuracy nocuously and a factor of the dimensional accuracy in gap between the recording surface of head and dish.
In order to overcome the vibration that produces owing to air-flow, many kinds of disk drives have been proposed, they comprise the gas flow modulation mechanism of the air-flow that produces when being used to be adjusted in the memory disc high-speed rotation around it.For example the patented claim of Japanese unexamined (Kokai) has disclosed the hard disk drive with the cowling panel on the inner wall surface that is installed in housing 2000-348465 number.This cowling panel is to have the rigid member that part centers on one year cylindrical shape in cylinder inner wall external peripheral surface and that the be fixedly fitted to housing surface of memory disc.This rectification body is made by a tubular metal material, a rectifier tank that has an inner periphery surface relative with memory disc and extended along its periphery by machine work formation.The air-flow that cowling panel produces around memory disc when the high-speed rotation along rectifier tank guiding evenly is used to reduce the influence of the vibration that caused by air-flow etc. on memory disc.
Equally, Japanese unexamined patent disclosure (Kokai) has disclosed for 2000-357385 number-CD-ROM device, and it comprises many ring grooves of all positions that be formed centrally together around the rotary centerline of dish, relative with the enlightenment surface of memory disc.The air-flow that these ring grooves guide the rotation by memory disc to cause in a figures is used to reduce the influence of vibration that air-flow causes etc. on memory disc.
Japanese unexamined patent disclosure (Kokai) has disclosed a hard disk drive 11-297037 number, it comprises a guiding groove, is used in the space between all memory discs mandatory mobile by the caused air-flow of the rotation of many memory discs towards the other places from the center of rotation diameter.The positive motion of this air-flow helps reducing the vibration of all memory discs.
Japanese unexamined patent disclosure (Kokai) has disclosed a hard disk drive 11-73756 number, and it comprises a plurality of rectification walls, and the air-flow that is used for the rotation by memory disc is caused carries out rectification, and these rectification walls are formed on the place, all bights in the housing.Each surperficial cooperation that all rectification walls are relative with memory disc forms a cylinder and surrounds wall and steering current evenly.
United States Patent (USP) 4,885,652 and the instructions and the United States Patent (USP) 4 of the Japanese unexamined utility model corresponding open (Kokai) 2-16474 number with it, 339,777 instructions has disclosed a hard disk drive, and it comprises being used for forcibly moving by memory disc rotates the air-flow that the causes airflow guiding structure towards an air strainer that is provided with in housing.
In the prior art, the housing of disk drive comprises by an ordinary metallic material by the rigid structure be processed into of casting with the bottom groove with the main essential part that is used for stably holding disk drive.Therefore, traditional various gas flow modulation mechanism requires some machining steps, is used for installing on the inner wall surface of the groove that forms housing an independent part of a cowling panel for example or a rectification wall.This machine work may make this production run complexity or increase the production cost of disk drive.
(3) summary of the invention
The purpose of this invention is to provide a kind of be used for to disk drive from a memory disc read and write, it comprises a cheap and easy-to-install gas flow modulation mechanism, be used to be adjusted in the air-flow that is produced around the memory disc of high-speed rotation, thereby advantageously reduce influence by air-flow caused vibration etc. on memory disc.
Another object of the present invention provides and a kind ofly can be bonded to the pieces of sheet that is used as a gas flow modulation mechanism in the disk drive.
To achieve these goals, the invention provides a kind of disk drive, it comprises: a housing, and it has an inner wall surface that forms a groove; One rotating memory disc, it is arranged in the described groove of described housing and has a recording surface; One actuator, it is arranged in the described groove of described housing, in a position near described memory disc, described actuator loads a head relative with the described recording surface of described memory disc and makes the described relatively recording surface of described head carry out one and follows the tracks of and operate; And, one gas flow modulation mechanism, be used to regulate the air-flow that produces of the described memory disc in the described groove of described housing on every side owing to the rotation of described memory disc, described gas flow modulation mechanism comprises the pieces of sheet with a flexibility, flexibility makes this pieces of sheet follow the shape of the described inner wall surface of described housing, described pieces of sheet comprises the basalis with a major opposing side and trailing flank relative with described major opposing side, forming an attached adhesive layer on many minute protrusions and the described trailing flank on the described major opposing side at described basalis, described pieces of sheet is by the described inner wall surface of described adhesive layer attachment in described housing, and described many minute protrusions are exposed to the described groove of described housing simultaneously.
In above-mentioned disk drive, the many described minute protrusions of described pieces of sheet comprises many convex ridges that totally extend in parallel mutually.
In above-mentioned disk drive, described many minute protrusions of described pieces of sheet comprise many connector parts, and each connector part is respectively at the lobed head end of its far-end.
In above-mentioned disk drive, described pieces of sheet is arranged on a position relative with a neighboring of all described memory discs.
In above-mentioned disk drive, described pieces of sheet is arranged on a position relative with the described recording surface of described memory disc.
Providing a kind of is combined in the disk drive with the pieces of sheet as a gas flow modulation mechanism, described disk drive comprises a housing and a rotating memory disc, described pieces of sheet is used to regulate the air-flow that produces of the described memory disc in the groove on an inner wall surface of described housing owing to the rotation of described memory disc on every side, described pieces of sheet has a flexibility, flexibility makes this pieces of sheet follow the shape of the described inner wall surface of described housing, described pieces of sheet comprises the basalis with a major opposing side and trailing flank relative with described major opposing side, forming an attached adhesive layer on many minute protrusions and the described trailing flank on the described major opposing side at described basalis, described pieces of sheet is by the described inner wall surface of described adhesive layer attachment in described housing, and described many minute protrusions are exposed to the described groove of described housing simultaneously.
In above-mentioned pieces of sheet, described all minute protrusions are arranged to specific have some flat and geometric figures open area, these flat and open areas be formed on other all minute protrusions on the described first type surface or recessed adjoining or staggered.
In above-mentioned pieces of sheet, also be provided with a surface that comprises an air filtering function.
In above-mentioned pieces of sheet, also has a function of the sound that reduction sends from described disk drive.
In above-mentioned pieces of sheet, also have from an anti-static function, be used for attracting a surface charging lotus function of particulate and at least one function that a moisture absorbing is selected.
In above-mentioned pieces of sheet, also have from one and reduce at least one function of selecting an electromagnetic interference function and the minimizing Radio frequency interference (RFI) function.
(4) description of drawings
Fig. 1 according to one embodiment of the invention, remove the stereographic map of a disk drive of case cover.
Fig. 2 illustrates many memory discs of disk drive of Fig. 1 and the schematic sectional view of a pieces of sheet.
Fig. 3 be illustrate Fig. 2 pieces of sheet one amplify the stereographic map of form.
Fig. 4 (a) to (e) is the amplification view according to the pieces of sheet of modification.
Fig. 5 is the amplification stereogram according to the pieces of sheet of modification.
Fig. 6 is the amplification front elevation according to the pieces of sheet of another modification.
Fig. 7 is the local amplification view that a preferred shape of connector part (headed element) arranged that the pieces of sheet of Fig. 6 is shown.
Fig. 8 is the schematic sectional view that the disk drive with all pieces of sheet that are arranged on all diverse locations place is shown.
(5) embodiment
Be described in detail one embodiment of the invention hereinafter with reference to accompanying drawing.In the accompanying drawings, identical or similar part is represented with identical label respectively.
Consult accompanying drawing, Fig. 1 is the stereographic map that illustrates according to a disk drive 10 that removes its case lid of one embodiment of the invention, and Fig. 2 is the schematic sectional view that a gas flow modulation mechanism of disk drive is shown.Disk drive 10 has a kind of as for example structure of a hard disk of an ASU auxiliary storage unit of an information handling system of a personal computer.
All memory discs 16 are all disks that a recording surface 16a is arranged on its two surface, and each recording surface 16a is formed with a plurality of track record (not shown) that center on pivot center with one heart.Multi-disc memory disc 16 is fixedly mounted on preset space length on the common power shaft 14 each other along axis direction in the kerve 24 of housing 12, and by drive source drives power high-speed rotation (direction shown in the arrow " α ") synchronously mutually.
That actuator 20 comprises is a plurality of (in this accompanying drawing 4) cantilever 28, each cantilever extends and rotatable around a bolster along the recording surface 16a of memory disc 16.All cantilevers 28 integrally connect mutually at its cardinal extremity, and all 28a of coupling part integrally are installed on the common axis 30.The end of each cantilever 28 is connected with the slider pad (not shown) of head 18 that a head rest supporting plate 32, a latch plate and formation are loaded in an end place of each head rest supporting plate 32.A plurality of cantilevers 28 are synchronously rotated around axle 30 (along the indicated directions of arrow " β ") in a predetermined angular range mutually by the driving force of the servo control mechanism 22 in the kerve 24 of housing 12.Its result, the head 18 at front end place that is connected in the head rest supporting plate 32 of each cantilever 28 is carried out the tracking operation on the track record that forms on the recording surface 16a of respective stored dish 16, thereby data is write recording surface 16a or from recording surface 16a reading of data.Actuator 20 is formed with the through hole 34 in the middle body vicinity of each cantilever 28, is used to reduce a plurality of cantilevers 28 moment of inertia at work, thereby reduces the weight of all arms 28.
The gas flow modulation mechanism of disk drive 10 comprises a pieces of sheet 38 at the desired location place on the inner wall surface that is fixed on the kerve 24 that forms housing 12.As shown in Figure 3, this pieces of sheet 38 comprises a basalis 42 and an adhesive layer 44, and this basalis 42 has a major opposing side 42a who is formed with many minute protrusions 40, this adhesive layer 44 be attached to basalis 42, on another surface away from major opposing side 42a.Pieces of sheet 38 is fixed in the inner wall surface 36 of housing 12 by adhesive layer 44, and many minute protrusions 40 are exposed to the kerve 24 of housing 12.
Pieces of sheet 38 is flexibilities like this, so that can follow the shape of the inner wall surface 36 of housing 12.As hereinafter described, material by selecting pieces of sheet 38 and size are to produce such flexibility.Especially in the embodiment shown, pieces of sheet 38 is arranged on the pre-position of side surface area 36a of the inner wall surface of housing 12 with all neighborings 16b relativeness with multi-disc memory disc 16.Usually, the side surface area 36 of housing 12 forms a cylindrical shape that has corresponding to a radius-of-curvature of the radius-of-curvature of the neighboring 16b of all memory discs 16, is used for guaranteeing the stationarity of the caused air of all memory discs that rotates.Pieces of sheet 38 is fixed with a bending in the mode of the shape of following the inner wall surface 36 with a predetermined bend radius glossily.
In addition, in the embodiment shown, many minute protrusions 40 of pieces of sheet 38 form the many convex ridges 46 (Fig. 3) that are parallel to each other basically and extend.Pieces of sheet 38 is arranged on appropriate position on the inner wall surface 36 in such mode, and all convex ridges 46 that promptly constitute many minute protrusions 40 extend along the direction of the recording surface 16a that is basically parallel to all memory discs 16.
Pieces of sheet 38 is not limited to result shown in Figure 3, but can constitute by so a kind of mode, that is, all minute protrusions are arranged to have particular geometric figure flat and open all zones, other minute protrusions that forms on all zones and the first type surface or recessed adjoining or staggered.Be that pieces of sheet 38 selectively is included in and inwardly charges into protruding or recessed surface characteristics on the first type surface of basalis, for example by a pyramid, square, rectangle, circle, quadrant shape and its in conjunction with determined like that.
Have on the side surface area 36a of the inner wall surface 36 of housing, with the pieces of sheet 38 of this structure of the 16 one-tenth relativenesses in all neighborings of multi-disc memory disc 16, make with the contacting of the air-flow that rotation produced of all memory discs 16 in the mantle friction minimum.Consequently guiding along the air-flow of side surface area 36a reposefully is a laminar flow with making this air-flow basicly stable.Thus, reduce influences such as the caused vibration of air-flow on all memory discs 16 very effectively.
Pieces of sheet 38 can also basalis 42 first type surface 42a be provided with a surface characteristics that links to each other or separate, have an air filtering function with the gas flow modulation feature.Projection and/or recessed is similar to above-mentioned surface characteristics, can be on the first type surface of pieces of sheet 38 and the trapped inside of a disk drive housing or collect particulate.From this viewpoint, by selective polymer or add carbon for example or the adjuvant of other absorbing material can also be combined with the chemical filtering effect.
In addition, to have one fully the structure of flexible pieces of sheet 38 be fixed in desired location place on the inner wall surface 36 of housing by adhesive layer 44, do not need fully to be used for pieces of sheet 38 is installed in machine work on the inner wall surface 36 of housing 12, even have under the situation of a rigid structure by a casting processing etc. at housing 12 also be like this.Thus, pieces of sheet 38 has been simplified the manufacturing processing of disk drive 10 and has been reduced its manufacturing cost.
Do not limit the material of the basalis 42 of pieces of sheet 38, but the resin base that can use for example polypropylene, tygon, acryl resin, polyimide, polyimide, polycarbonate or polyethylene terephthalate to make.Also can adopt a liquid crystal polymer as base layer material.Can for example on basalis 42, form all minute protrusions 40 by mold pressing processing, extrusion process, chemical etching or ion etching.And, can be by a pressure sensitive adhesives and preferably make adhesive layer 44 by the general type cementing agent of an acroleic acid binding agent.In this case, preferably in an appropriate combination, utilize the basalis 42 of gross thickness and 30 microns adhesive layers 44 to produce a required flexibility to 100 micron thickness with 0.5 millimeter to 0.3 millimeter (height that comprises minute protrusions).
There is shown other example of the convex ridge that constitutes many minute protrusions 40 at the section of Fig. 4 (a) to (e), they are disclosed in United States Patent (USP) 4,986,496; 5,069,403; In 5,133,516 and 5,848,769.Ideally, in the convex ridge 46 of the different shape shown in Fig. 3 and 4.The height of each convex ridge 46 (distance from cardinal extremity to the top) is 20 microns to 400 microns, and the V-arrangement cardinal extremity angle of the crossing (being cheuch) is 15 ° to 140 °, and the spacing between all tops of adjacent ridge 46 is 20 microns to 400 microns.Have any shown in all ridges 46 of shape can demonstrate the useful effect of air-flow being carried out rectification by guaranteeing the correct directivity of pieces of sheet 38 on the inner wall surface of housing 12.
The many minute protrusions 40 that are formed on the basalis 42 of pieces of sheet 38 are not limited to above-mentioned convex ridge 46, but for example among Fig. 5 all pyramid projectioies 48 or all mushroom-shaped connectors partly constitute.Under any circumstance, by with the desired location place that suitable direction is fixed on the inner wall surface 36 of housing 12 many minute protrusions 40 being demonstrated produce the function that air-flow carries out rectification around the memory disc 16 of high-speed rotation pieces of sheet 38.Its result has impelled the stable of air-flow, has reduced the influences such as vibration that air-flow causes on all memory discs 16 effectively.
Especially, known all connector parts 50 that have a convex head 52 in the end demonstrate the excellent effect to the air-flow rectification.In this situation, connector part 50 advantageously has a section shown in Figure 7.As an example of the each several part size of the basalis 42 of the connector part 50 with above-mentioned this shape, the diameter D of head 52 is 0.300 millimeter, and the height H of connector part 50 is that the gross thickness T of 0.325 millimeter and basalis 42 is 0.44 millimeter.
Formed in the situation of many minute protrusions 40 by all convex ridges 46, the material that can preferably be used for the basalis 42 of pieces of sheet 38 for example comprises a belt that has all projectioies (B-100 type) that can obtain from 3M company (Minn.).In addition the aspect is in the situation of all connector parts 50 in many minute protrusions 40, can use a belt that has all connector parts (CS-200 type) that can obtain from 3M company.
As shown in Figure 8, have the pieces of sheet 38 of said structure can be arranged on following recording surface 16a with the memory disc 16 that is positioned at lower end relative, on the bottom surface area 36b of the inner wall surface of housing 12 pre-position, the last recording surface 16a of the memory disc 16 that perhaps is arranged on and is positioned at upper end relative, in a pre-position of the top surface area (for example, the reverse side of lid 26) of the inner wall surface 36 of housing 12.And, pieces of sheet 38 works in this structure, be used for making with the basal surface 36b of the inner wall surface 36 relative, housing of the recording surface 16a of many memory discs 16 or top surface area 36c on rotate the mantle friction minimum that the air-flow that produced contacts with all memory discs 16, thereby making air-flow basicly stable is a laminar flow, therefore can reduce the influences such as vibration that air-flow causes very effectively on all memory discs 16.
In addition, pieces of sheet 38, because the flexibility of himself, can smoothly assemble the ground attachment in the inner wall surface 36 of a deformity (for example indicated part of label 54 among Fig. 1) with a case of bending, not with the kerve 24 of the radius-of-curvature of the neighboring 16b of all memory discs 16 or housing 12 in each member of being provided with surperficial consistent.Equally, even in one of interior all memory discs that different curvature radius (being different-diameter) is housed a dissimilar disk drive, also can the desired location place in housing use and be provided with the pieces of sheet of same structure widely.
Can also have the function that is used to reduce from the sound of disk drive emission according to pieces of sheet of the present invention.With the fluid bearing on the dish drive shaft in the disk drive, pneumatic noise becomes an overriding noise feature.In this respect, pieces of sheet can reduce the noise that is produced by changing surperficial stream condition and/or absorption and/or being dissipated in the noise that produces in the disk drive.
Below narrated preferred embodiment of the present invention.But the present invention is not limited to the structure of illustrated embodiment, but can carry out various modifications and variations without departing from the scope of the invention.For example, can use a disk drive according to disk drive of the present invention and its method of manufacturing with the memory disc that for example is different from disk CD or magnetic-CD.
And pieces of sheet can have from anti-static function, be used for attracting a surface charging lotus function of particulate and at least one function that moisture absorbing is selected.In addition, pieces of sheet can have from reducing electromagnetic interference function and reducing at least one function of selecting the Radio frequency interference (RFI) function.
Example
In having one 8.89 (3.5 inches) hard disk drive of basic structure shown in Figure 1, memory disc 16 rotates with 1000 rev/mins of speed, to the present invention (Fig. 2), have a traditional structure of the structure of slicer board 38 being installed and not having pieces of sheet 38 on the side surface area 36a of the inner wall surface 36 of housing, measure along vibration with a laser displacement instrument in the vertical direction of the memory disc 16 of upper end (along driving shaft 14 axial).Measurement point is arranged on the diameter center of the recording surface 16a of memory disc 16.Used the pieces of sheet 38 of two kinds of patterns, one comprises the basalis 42 (sample 1) that is formed with all minute protrusions 40 that are configured to many convex ridges, and another comprises that pieces of sheet 38, this basalis with basalis 42 are formed with all minute protrusions 40 (sample 2) that are configured to many connector parts.Its result, in the memory disc 16 of the upper end of traditional structure, vertically the amplitude that takes place is 1.71 microns, and is decreased to 1.33 microns according to the amplitude of the sample 1 of structure of the present invention, the amplitude of sample 2 is reduced to 0.87 micron.
As from above-mentioned, obviously, according to the invention provides a disk drive that is used for data are write and read all memory discs, wherein can be cheaply and a gas flow modulation mechanism highly reliably is installed easily, it can suppress air-flow influence such as caused vibration on all memory discs effectively by caused air-flow around all memory discs that are adjusted in high-speed rotation.
Claims (11)
1. a disk drive comprises:
One housing, it has an inner wall surface that forms a groove;
One rotating memory disc, it is arranged in the described groove of described housing and has a recording surface;
One actuator, it is arranged in the described groove of described housing, in a position near described memory disc, described actuator loads a head relative with the described recording surface of described memory disc and makes the described relatively recording surface of described head carry out one and follows the tracks of and operate; And
One gas flow modulation mechanism, be used to regulate the air-flow that produces of the described memory disc in the described groove of described housing on every side owing to the rotation of described memory disc, described gas flow modulation mechanism comprises the pieces of sheet with a flexibility, flexibility makes this pieces of sheet follow the shape of the described inner wall surface of described housing, described pieces of sheet comprises the basalis with a major opposing side and trailing flank relative with described major opposing side, forming an attached adhesive layer on many minute protrusions and the described trailing flank on the described major opposing side at described basalis, described pieces of sheet is by the described inner wall surface of described adhesive layer attachment in described housing, and described many minute protrusions are exposed to the described groove of described housing simultaneously.
2. disk drive as claimed in claim 1 is characterized in that: the many described minute protrusions of described pieces of sheet comprises many convex ridges that totally extend in parallel mutually.
3. disk drive as claimed in claim 1 is characterized in that: described many minute protrusions of described pieces of sheet comprise many connector parts, and each connector part is respectively at the lobed head end of its far-end.
4. disk drive as claimed in claim 1 is characterized in that: described pieces of sheet is arranged on a position relative with a neighboring of described memory disc.
5. disk drive as claimed in claim 1 is characterized in that: described pieces of sheet is arranged on a position relative with the described recording surface of described memory disc.
6. one kind is combined in the disk drive with the pieces of sheet as a gas flow modulation mechanism, described disk drive comprises a housing and a rotating memory disc, described pieces of sheet is used to regulate the air-flow that produces of the described memory disc in the groove on an inner wall surface of described housing owing to the rotation of described memory disc on every side, described pieces of sheet has a flexibility, flexibility makes this pieces of sheet follow the shape of the described inner wall surface of described housing, described pieces of sheet comprises the basalis with a major opposing side and trailing flank relative with described major opposing side, forming an attached adhesive layer on many minute protrusions and the described trailing flank on the described major opposing side at described basalis, described pieces of sheet is by the described inner wall surface of described adhesive layer attachment in described housing, and described many minute protrusions are exposed to the described groove of described housing simultaneously.
7. pieces of sheet as claimed in claim 6, it is characterized in that: described all minute protrusions are arranged to specific have some flat and geometric figures open area, these flat and open areas be formed on other all minute protrusions on the described major opposing side or recessed adjoining or staggered.
8. pieces of sheet as claimed in claim 6 is characterized in that: also be provided with a surface that comprises an air filtering function.
9. pieces of sheet as claimed in claim 6 is characterized in that: a function that also has the sound that reduction sends from described disk drive.
10. pieces of sheet as claimed in claim 6 is characterized in that: also have from an anti-static function, be used for attracting a surface charging lotus function of particulate and at least one function that a moisture absorbing is selected.
11. pieces of sheet as claimed in claim 6 is characterized in that: also have from one and reduce at least one function of selecting an electromagnetic interference function and the minimizing Radio frequency interference (RFI) function.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001264430A JP2003085941A (en) | 2001-08-31 | 2001-08-31 | Disk unit having air flow adjusting mechanism and thin plate member incorporated thereto |
| JP264430/2001 | 2001-08-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1550015A CN1550015A (en) | 2004-11-24 |
| CN1299296C true CN1299296C (en) | 2007-02-07 |
Family
ID=19091029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028170377A Expired - Fee Related CN1299296C (en) | 2001-08-31 | 2002-07-08 | Disk unit having air flow adjusting mechanism and thin plate member incorporated thereto |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2003085941A (en) |
| CN (1) | CN1299296C (en) |
| WO (1) | WO2003021596A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104103284A (en) * | 2013-04-12 | 2014-10-15 | 索尼公司 | Disk drive apparatus |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100539245B1 (en) | 2003-11-05 | 2005-12-27 | 삼성전자주식회사 | Hard disk drive having air guide |
| CN1324610C (en) * | 2004-09-09 | 2007-07-04 | 建兴电子科技股份有限公司 | Carving machine of disk sheet |
| RU2461369C2 (en) | 2006-09-25 | 2012-09-20 | Конинклейке Филипс Электроникс, Н.В. | Intraoperative patient temperature control |
| JP5289914B2 (en) * | 2008-12-03 | 2013-09-11 | エイチジーエスティーネザーランドビーブイ | Disk drive |
| CN107642462A (en) * | 2017-09-18 | 2018-01-30 | 新疆金风科技股份有限公司 | Fairing, tower and wind power generating set |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4821130A (en) * | 1987-09-04 | 1989-04-11 | Digital Equipment Corporation | Disk extender baffles |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54154310A (en) * | 1978-05-25 | 1979-12-05 | Fujitsu Ltd | Magnetic disc apparatus |
| JPS5994273A (en) * | 1982-11-22 | 1984-05-30 | Fujitsu Ltd | Information recording and reproducing disk device |
-
2001
- 2001-08-31 JP JP2001264430A patent/JP2003085941A/en active Pending
-
2002
- 2002-07-08 CN CNB028170377A patent/CN1299296C/en not_active Expired - Fee Related
- 2002-07-08 WO PCT/US2002/021488 patent/WO2003021596A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4821130A (en) * | 1987-09-04 | 1989-04-11 | Digital Equipment Corporation | Disk extender baffles |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104103284A (en) * | 2013-04-12 | 2014-10-15 | 索尼公司 | Disk drive apparatus |
| CN104103284B (en) * | 2013-04-12 | 2018-09-18 | 索尼公司 | Magnetic disk drive |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003085941A (en) | 2003-03-20 |
| CN1550015A (en) | 2004-11-24 |
| WO2003021596A1 (en) | 2003-03-13 |
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