CN2600900Y - Hard disk structure - Google Patents
Hard disk structure Download PDFInfo
- Publication number
- CN2600900Y CN2600900Y CNU022503439U CN02250343U CN2600900Y CN 2600900 Y CN2600900 Y CN 2600900Y CN U022503439 U CNU022503439 U CN U022503439U CN 02250343 U CN02250343 U CN 02250343U CN 2600900 Y CN2600900 Y CN 2600900Y
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- CN
- China
- Prior art keywords
- hard disk
- disc
- read
- disk structure
- write head
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- Expired - Lifetime
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Abstract
A hard disk structure comprises a shell, several disk sheets, several read-write heads and a rotary motor, wherein the rotary motor comprises a rotor; the rotor comprises a rotating shaft and a clamp ring; a cap-body is connected with one end of the rotating shaft; primary end of a cylinder part concentric with the rotating shaft is connected with the cap-body; a disc-form part is connected with secondary end of the cylinder part; the disc-form part comprises an upper surface; the clamp ring is connected with the cylinder part, and fixes the disk sheets above the upper surface of the disc-form part. With help of the above technical proposal, the utility model can shorten the distance between the disk sheets and the motor, thus obtains a reduced thickness without the need of shielding devices; besides, the hard disk structure applies a working voltage of 3V, thus power consumption can be reduced.
Description
[technical field]
The utility model is about a kind of hard disk structure, is meant the hard disk structure that satisfies miniaturization, low power consumption requirement especially.
[background technology]
Along with the trend of the continuous miniaturization of pocket computer apparatus, and along with the raising that pocket computer apparatus continuous working period is required, memory storage is had higher requirement, miniaturization, low power consumption become the developing direction of memory storage such as hard disk.
Currently occurred various hard disks, as United States Patent (USP) 4,568,988 have disclosed a kind of hard disk of the 88.9mm of employing disc, United States Patent (USP) 4,933, and 785 have disclosed a kind of hard disk of the 63.5mm of employing disc.United States Patent (USP) 4,933,785 hard disk length and width are respectively 109.2mm and 71.1mm.But above-mentioned hard disk can not satisfy the double requirements of miniaturization, low power consumption.
Disclosed a kind of hard disk of two discs as Fig. 1, this hard disk comprises a rotation motor 4910 and is fixed on two discs 4920 on the rotation motor, each disc 4920 upper and lower surface is respectively equipped with read/write head 4930,4931, and this motor top also is provided with iron oxygen thing shield 4940 to prevent the electromagnetic interference (EMI) of rotation motor to read/write head.Fig. 2 has disclosed a kind of hard disk of three discs.The distance that adjacent disc is 4920 is approximately the required distance twice of read/write head 4930,4931, is 3.0mm.And disc 4920 of every increase, this hard disk will increase 3.6mm, promptly adds the thickness 0.6mm of disc 4920 apart from 3.0mm between two discs.Therefore, the thickness of two discs, four read/write head hard disks is about 17.2mm among Fig. 1, and the thickness of three discs, six read/write head hard disks is about 20.8mm among Fig. 2.
[summary of the invention]
The purpose of this utility model is to provide that a kind of physical dimension is little, little power consumption and do not need the hard disk structure of other shield assembly.
The purpose of this utility model is achieved through the following technical solutions: this hard disk structure comprises a housing, a rotation motor, a disc, one or more read/write head and an actuator, and this read/write head is installed on the actuator to read and write data from disc.This rotation motor comprises a rotor, and this rotor comprises that the cap body and that a turning axle, is connected in turning axle one end is connected the cylindrical portion of cap body, this cylindrical portion and rotating shaft coaxle by first end.One plate-like portion is connected in the second end of cylindrical portion, and the upper surface of this plate-like portion is processed to form a disc installed surface.This disc is installed in the disc installed surface by clamp ring.The lower surface of the disc of this hard disk structure is in abutting connection with the upper surface of rotor, and lower surface is not stored data, and this disc is used as from the shield assembly of the upper surface reading writing information of disc, thereby does not need other shielding material such as iron oxygen thing.And this hard disk structure working voltage is 3.0 volts, and its power standard is: rotate 2.5 watts, dally 0.6 watt, 1.75 watts of read-write trackings, 0.4 watt of battery saving mode, 0.030 watt of standby, 0.010 watt of park mode.
By technique scheme, compare with existing hard disk, almost do not have distance between the disc of the utility model hard disk structure and the motor, thereby reduced thickness, and do not need other shield assembly, and reduced power consumption.
[description of drawings]
Fig. 1 is the reduced graph of existing two disc hard disks.
Fig. 2 is the reduced graph of existing three disc hard disks.
Fig. 3 is the three-dimensional exploded view of the utility model hard disk structure.
Fig. 4 A is the vertical view of the utility model hard disk structure.
Fig. 4 B is the left view of the utility model hard disk structure.
Fig. 4 C is the front view of the utility model hard disk structure.
Fig. 5 A is the vertical view that adopts the hard disk structure of dynamic magnetic head leading-in technique.
Fig. 5 B is the vertical view that adopts the hard disk structure of contact start stop mode technology.
Fig. 6 is the cut-open view along Fig. 5 B section line 4-4.
Fig. 7 is the hard disk structure cut-open view of another embodiment of the utility model.
Fig. 8 is the vertical view of hard disk structure among Fig. 7.
Fig. 9 is the cut-open view of the hard disk structure of the utility model the 3rd embodiment.
[embodiment]
See also Fig. 3, the utility model hard disk structure 1 comprises a loam cake 26, a disc 10, a clamp ring 12, actuator combination 15, one rotation motor 3, a substrate 6 and a printed circuit board (PCB) 2.This hard disk structure 1 adopts dynamic read/write head leading-in technique.This hard disk structure 1 a part of electron device is positioned at its housing, and another part electron device is positioned on the printed circuit board (PCB) 2.These disc 10 outer dias are about 33.5mm, and it comprises a center pit 13, and these center pit 13 diameters are about 10mm, the zone of data recorded area between radius 9.4mm to 15.5mm.This actuator combination 15 comprises an inner anticollision combination 25, a pair of carrier bar 14-1,14-2 and a pair of free-ended lifting arm 17 of carrier bar 14-1,14-2 that is positioned at, a pair of read/write head 5 is installed on respectively on carrier bar 14-1, the 14-2, read/write head 5 is small-sized read/write head, i.e. 50% read/write head, this kind read/write head size is about half of film read/write head.This rotation motor 3 comprises a turning axle 11, and this read/write head 5 is positioned the recording surface of disc 10 by revolving actuator combination 15, and realizes importing and exporting dynamically disc 10 by being positioned at the free-ended lifting arm 17 of carrier bar 14-1,14-2.This substrate 6 is an one-piece construction, is made by casting aluminium material, has through hole 7 on it, is used to accommodate rotation motor 3, and this substrate 6 also comprises cam combination 18.This inside anticollision combination 25 is used to prevent that read/write head 5 and disc 10 from bumping against.
Shown in Fig. 5 A, Fig. 5 A is the constitutional diagram of this hard disk structure 1, and disc 10 is fixed on the turning axle 11 by clamp ring 12, and this lifting arm 17 is stopped at cam and makes up 18 tops, bumps against to prevent read/write head 5 and disc 10.
Shown in Fig. 4 A to Fig. 4 C, the distance that hard disk structure 1 side is 32,33 is approximately 35mm, and the distance that side 33 and side are 36 is about 41mm, and the distance that front 34 and back are 35 is about 50.8mm.The height of this hard disk can be designed to different sizes such as 6.3mm, 10mm, 12.7mm or 15mm to cater to the requirement of various criterion.The height that this hard disk structure 1 end face 37 is 38 to printed circuit board (PCB) 2 bottom surfaces is about 6.3mm.
This hard disk structure 1 working voltage is 3.0 volts or 5.0 volts, and its 3 volts of voltage standards are: rotate 2.5 watts, dally 0.6 watt, 1.75 watts of read-write trackings, 0.4 watt of battery saving mode, 0.030 watt of standby, 0.010 watt of park mode.
Shown in Fig. 5 B, this hard disk structure 4 adopts contact start stop mode technology, its with Fig. 5 A in dynamically the read/write head difference that imports hard disk structure 1 be: this hard disk structure 4 does not need lifting arm and cam to make up.Its disc 60 is that with the difference of disc 10 this disc 60 has a read/write head and stops the district, as dotted line 61 among Fig. 5 B with shown in 62 the zone, and should the zone also through structure treatment especially to reduce the adhesion between the read/write head disc.
See also Fig. 6, disc 60 is a motor support and rotation in substrate 6, this motor comprises a stator, this stator comprises three laminations 64, each lamination 64 comprises a winding 65, stator support is on basal disc 6, and rotor 66 is rigidly fixed on the turning axle 11, and turning axle 11 is fixed on the basal disc 6 by a bearing 67.Magnet 68 is fixed on the bottom 69 of rotor 66.Disc 60 is fixed on the turning axle 11 by clamp ring 12.Actuator combination 15 comprises an actuator body 46 and an actuator coil 45, actuator body 46 support bearing beam 63-1,63-2 pivot around rotation center 70, carrier bar 63-1 free end is fixed with read/write head 5, this read/write head 5 is suspended from the top of the upper surface of disc 60, and carrier bar 63-2 supports read/write head 5 and is suspended from the below of the lower surface of disc 60.Actuator body 46 is supported on this basal disc 6 rotationally by bearing assembly 71, and this becomes assembly 47 to comprise an actuator bearing 71.Actuator coil 45 provides the drive signal of locating read-write head 5.
See also Fig. 7 and Fig. 8, this hard disk structure comprises a rotation motor 10-5, and a disc 20-5, one or more read/write head 30-5, this read/write head 30-5 are installed in actuator 40-5 and go up to read and write data from disc 20-5.
Read/write head 30-5 is installed on the carrier bar 50-5, and this carrier bar 50-5 stationary installation is on actuator 40-5.Actuator 40-5 pivots around axle 45-5, and it drives neighboring 23-5 and the inside circumference 24-5 of the inswept disc 20-5 of read/write head 30-5, and the angle that turns over is Φ.
This rotation motor 10-5 is a small size DC Brushless Motor, and it comprises a motor shell 11-5, and a stator is placed in one.This stator comprises laminate patch 13-5 and coil 14-5.One rotor 15-5 comprises a turning axle 16-5, and it is installed in the housing 11-5 by bearing 60-5.This rotor 16-5 comprises that a cap body 31-5 and who is connected in turning axle 16-5 one end is connected the cylindrical portion 32-5 of cap body 31-5 by first end, and this cylindrical portion 32-5 is coaxial with turning axle 16-5.One plate-like portion is connected in the second end of cylindrical portion 32-5.The upper surface 28-5 of plate-like portion is processed to form a disc installed surface 27-5, and this installed surface 27-5 has reduced the working (finishing) area of upper surface 28-5, provides condition thereby can be the position of more accurate definite read/write head 30-5 between disc 20-5.This disc installed surface 27-5 separates the lower surface 21-5 of disc 20-5 and the upper surface 28-5 of plate-like portion in the gap of about 0.13mm.This disc 20-5 is installed on the disc installed surface 27-5 by clamp ring 19-5.
The lower surface 21-5 of the disc 20-5 of this hard disk structure is in abutting connection with the upper surface 28-5 of plate-like portion, lower surface 21-5 does not store data, this disc 20-5 can be used as from the shield assembly of the upper surface 22-5 reading writing information of disc 20-5, thereby does not need other shielding material such as iron oxygen thing.
When being used for the 45.7mm disc, the size of this rotation motor is approximately 31mm, thickness, be that distance between motor 10-5 bottom surface and end face 28-5 reduces to about 5mm, because between disc 20-5 and the motor 10-5 plate-like upper surface 28-5 of portion, almost do not have distance, so single-deck sheet and single read/write head hard disk minimum thickness are approximately 7.1mm (adding the necessary gap of read/write head of 1.5mm).This is approximately existing single-deck sheet dual head hard disk 13.6mm thickness half.Because read/write head 30-5 is suspended in upper surface 22-5 top, therefore can reads and writes magnetic track, thereby but increase by about 40% storage area than the motor that adopts prior art near turning axle 16-5.The hard disk of this this motor of employing has reduced the required read/write head number of read-write same storage area simultaneously.Also reduced the staring torque of contact start stop mode hard disk when reducing the read/write head number, thereby reduced amount of battery consumption, in like manner dynamically the introducing-type hard disk also can reduce amount of battery consumption.Simultaneously rotor 15-5 has also played the effect of the electromagnetic interference (EMI) that shielding sends from motor 10-5.The disk coating by lower surface 21-5 is to the upper surface 22-5 protective effect of also having played electromagnetic interference (EMI) simultaneously for disc 20-5, and the disc conductive substrate has then played the effect that prevents vortex flow.Thereby the needs of iron oxygen thing coating in the existing hard disk have been reduced.
Fig. 9 is the hard disk structure of one or two discs, this hard disk structure comprises a motor 10-5, this motor 10-5 comprises a turning axle 16-5 (2) who prolongs, one rotor 15-5 (2) is pressed into and is matched with turning axle 16-5 (2), this rotor 15-5 (2) comprises that a cap body 31-5 (2) and who is connected in turning axle 16-5 (2) one ends is connected the cylindrical portion 32-5 (2) of cap body 31-5 (2) by first end, and one first disc 20-5 is held on the top of the upper surface 28-5 of rotor 15-5 (2).One loam cake 4540 is fixed on the upper end of turning axle 16-5 (2) by screw 4541.This loam cake 4540 comprises the portion 4542 of dangling, and this portion 4542 of dangling forms one second installed surface 4527.One second disc 25-5 (2) is held on this second installed surface 4527 by one second clamp ring 4519.One second, third read/write head 4530,4531 is suspended in upper surface 22-5 (2) and the lower surface 21-5 (2) of the second disc 25-5 (2) respectively.In like manner, more disc can be installed on this rotor 15-5 (2).
This first disc 20-5 and one or more second disc 25-5 are housed in this hard disk structure together, and this first disc 20-5 closes on this rotation motor 10-5.A read/write head 30-5 is in abutting connection with this first disc 25-5, and read/write head 4530,4531 is in abutting connection with these one or more second disc 25-5.
The thickness of supposing motor 10-5 among Fig. 9 is about 5mm, the about 3.0mm of distance between the lower surface 21-5 (2) of the upper surface 22-5 of the first disc 20-5 and second disc, distance between the read/write head 453 1 and the second disc 25-5 is 1.5mm, the thickness of disc is 0.6mm, and then the hard disk structure height of two discs is about 10.7mm.
The hard disk structure of two discs of Fig. 9 is compared with Figure 49 A, and the thickness of motor has reduced makes an appointment with half, adds that the distance that reduces between the motor and the first disc 20-5 makes the DISK to Image thickness of structure reduce about 6.5mm.And because read/write head 30-5 is read-write apart from the nearer magnetic track of turning axle 16-5 (2), the angle Φ that it is inswept is obviously greater than the angle of the hard disk structure of existing two discs, thereby improved the memory space of disc.In like manner, three discs, the six read/write head hard disk structures among the existing Figure 49 B of the hard disk texture ratio of three discs, five read/write heads among Figure 46 have increased memory capacity and have reduced thickness.
Claims (6)
1. hard disk structure, it comprises a housing, some discs, some read/write heads and a rotation motor, this rotation motor comprises a rotor, it is characterized in that: this rotor comprises that a turning axle, a clamp ring, are connected in that the cap body of this turning axle one end, a first end link to each other with this cap body and cylindrical portion and the plate-like portion that with this cylindrical portion the second end link to each other concentric with this turning axle, this plate-like portion comprises a upper surface, this clamp ring links to each other with this cylindrical portion, and this clamp ring is fixed on disc on the upper surface top of plate-like portion.
2. hard disk structure as claimed in claim 1 is characterized in that: the operating voltage of this rotation motor is 3 to 5 volts.
3. hard disk structure as claimed in claim 1 is characterized in that: this read/write head is 50% magnetic head.
4. hard disk structure as claimed in claim 1 is characterized in that: the disc of this vicinity plate-like portion can prevent the electromagnetic interference (EMI) of rotation motor to read/write head.
5. hard disk structure as claimed in claim 1 is characterized in that: the size of this disc is between between the 33mm to 34mm.
6. hard disk structure as claimed in claim 1 is characterized in that: this hard disk structure is contact start stop mode hard disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022503439U CN2600900Y (en) | 2002-12-12 | 2002-12-12 | Hard disk structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022503439U CN2600900Y (en) | 2002-12-12 | 2002-12-12 | Hard disk structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2600900Y true CN2600900Y (en) | 2004-01-21 |
Family
ID=34149494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU022503439U Expired - Lifetime CN2600900Y (en) | 2002-12-12 | 2002-12-12 | Hard disk structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2600900Y (en) |
-
2002
- 2002-12-12 CN CNU022503439U patent/CN2600900Y/en not_active Expired - Lifetime
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121212 Granted publication date: 20040121 |