CN1822205A

CN1822205A - Hard disc

Info

Publication number: CN1822205A
Application number: CN 200510121093
Authority: CN
Inventors: 许铭癸; 黄春生
Original assignee: Shenzhen Excelstor Technology Co Ltd
Current assignee: Shenzhen Excelstor Technology Co Ltd
Priority date: 2005-12-29
Filing date: 2005-12-29
Publication date: 2006-08-23
Also published as: WO2007073669A1

Abstract

This invention discloses a hard-disk including a shell, a core, an interface commutator and a sealing piece, in which, a hard-disk interface is set on the shell having a first containing space sealed by said sealing piece, said interface commutator passes through said sealing piece to commutate the interface of the core to that of the shell from the first containing space, which applies a shell with the size of the large disk and interface to seal the small disk for the second time to seal it in the shell and create a small internal operation environment to solve the problem of un-balance in air-tight or shatter in balance.

Description

Hard disk

[technical field]

The present invention relates to mass-memory unit, particularly relate to and be applicable to the hard disk that in particular surroundings, uses.

[background technology]

Traditional hard disk mainly is made of parts such as base, top cover, disc, head stack, circuit boards, the core component disc of hard disk, head stack etc. all are positioned at the hard drive space inside that is surrounded by base and top cover, because these critical components have very high precision, therefore in the process of producing or using, all need its residing space to have the cleanliness of height.Traditional hard disk has very high sealing after the top cover sealing, guarantee the height cleaning of inner space.But the sealing of hard disk inner space height also has very important negative effect: hard disk in use, Spindle Motor drives the high-speed motion that disc is done the thousands of commentaries on classics of per minute, temperature can obviously raise in the hard disk, causes the marked change of hard disk internal gas pressure; The temperature contrast brought of environmental change etc. also can cause the hard disk internal gas pressure with extraneous uneven in addition, uneven steady operation and the reliability that very is unfavorable for hard disk of this air pressure.

This defective is solved by the air pressure balance technology at present, promptly by on top cover or base, through hole being set, and in hard disk inside through hole is covered with filtration unit, make the interior space of dish and the external world to carry out the air-flow exchange in through hole by filtration unit, neither influence the high cleanliness in space in the dish, guarantee air pressure inside and extraneous balance again, guaranteed the stability of hard disk work.

But the solution of above-mentioned air pressure balance, make but that in some particular surroundingss hard disk almost can't use, for example in the very high infrabar area of height above sea level, because atmospheric density is too low, hard disk when work magnetic head and disc between can't guarantee necessary distance, be easy to the scratch card and damage magnetic head, hard disk almost can't operate as normal; Again such as in high humility and the serious place of dust pollution, because the existence of air equalizer opening, it is saturated and can't continue to play the effect of cleaning in the holding tray that filtration unit can be too early, can shorten the life-span of hard disk greatly.

[summary of the invention]

The purpose of this invention is to provide the hard disk that a kind of internal work ambient stable is reliable, be adapted at using in the particular surroundings the extensive compatible existing equipment interface of while energy.

The technical scheme that realizes above-mentioned purpose is: a kind of hard disk comprises housing, dish core, interface breakout box and seal; Have the hard-disk interface that is complementary with its size on the described housing, have first spatial accommodation in the housing; Described dish core is a mini-hard disk, is contained in first spatial accommodation; Described seal is airtight with first spatial accommodation; Described interface breakout box passes described seal the interface of described dish core is forwarded to interface on the described housing from first spatial accommodation.

Described housing can adopt such structure: comprise base and loam cake, described first spatial accommodation is to fasten the space that forms by base and loam cake; Described seal comprises two O-ring seals up and down, lays respectively at base and loam cake, around the cavity setting that forms first spatial accommodation, the position correspondence of upper-lower seal circle.

Described interface breakout box can adopt such structure: comprise flexible circuit board and switching circuit board; Described switching circuit board is connected with interface on the described housing; Also has second spatial accommodation of isolating in the described housing with first spatial accommodation; Described switching circuit board is contained in second spatial accommodation and is connected with interface on the described housing; Described flexible circuit board is clipped between described up and down two O-ring seals the switching circuit board that described dish core interface is connected in second spatial accommodation from first spatial accommodation.

For strengthening the anti-seismic performance of hard disk of the present invention, elastomer isolators also is set, described elastomer isolators is between the inner walls of the described dish core and first spatial accommodation.

Described elastomer isolators is filled or is looped around between dish core and the inner walls in the mode of all or part of parcel.

Described elastomer isolators is preferably the elasticity spacer ring that is enclosed within on the dish core, and the thickness of spacer ring makes its outer wall can be close to inner walls.

Preferably, the overall dimensions of described housing are consistent with 3.5 inches hard disks, and described dish core is 2.5 inches or less than 2.5 inches hard disk.

The present invention adopts technique scheme, beneficial technical effects is: adopt the housing with big hard disk size and interface that small harddisk is carried out the secondary encapsulation, small harddisk is enclosed in enclosure interior, create stable internal operation subenvironment, solved airtight then uneven, the then flimsy problem of balance in the prior art easily.And owing to have enough spaces, housing parts can have suitable thickness, even if therefore comparatively common material, for example aluminium alloy etc. also can reach outstanding intensity, makes hard disk have better shock resistance.Because existing equipment all only is equipped with the interface that connects big hard disk (3.5 inches hard disks of standard) mostly, so the present invention can be convenient to use small harddisk in various existing equipments by the interface switching, has compatible widely.

Below by embodiment also in conjunction with the accompanying drawings, the present invention is described in further detail.

[description of drawings]

Fig. 1 is a kind of structural representation of hard disk.

[embodiment]

A kind of hard disk as shown in Figure 1, comprises housing 1, dish core 2, as the elasticity spacer ring 3 of elastomer isolators, as the upper and lower O-ring seal 51 and 52 of seal, and the interface breakout box.

Housing 1 comprises loam cake 11 and base 12, and the overall dimensions of housing 1 are consistent with 3.5 inches hard disks, and inside has the first separate spatial accommodation A and the second spatial accommodation B, and first, second spatial accommodation is to fasten the space that forms by loam cake 11 and base 12; Also have on the housing 1 and 3.5 inches hard-disk interface C that hard disk is identical.

Upper and lower two O-ring seals 51 and 52 lay respectively at loam cake 11 and base 12, around the cavity setting that forms the first spatial accommodation A, the position correspondence of upper-lower seal circle.

Dish core 2 is 2.5 inches hard disks, is contained among the first spatial accommodation A of housing 1.Elasticity spacer ring 3 is enclosed within on the dish core 2, and dish core 2 and inner walls are on every side isolated, and the thickness of spacer ring 3 makes its outer wall can be close to inner walls, with the relative fixed of holding tray core 2 positions.

The interface breakout box comprises flexible circuit board 41 and switching circuit board 42; Switching circuit board 42 is contained among the second spatial accommodation B of housing 1 and is connected with interface on the housing 1; Flexible circuit board 41 is clipped in the interface that will coil core 2 between upper and lower two O-ring seals 51 and 52 and is connected to switching circuit board 42 among the second spatial accommodation B from the first spatial accommodation A, the interface of dish core 2 promptly is relayed to the interface C on the housing 1 like this, and upper and lower two O-ring seals 51 and 52 position correspondences, fit tightly each other, guaranteed the good leakproofness of the first spatial accommodation A.Owing to externally use 3.5 inches hard-disk interfaces, so hard disk of the present invention can the compatible widely equipment that has 3.5 inches hard-disk interfaces in a large number.

Seal among the present invention has used the structure of the corresponding extruding of upper-lower seal circle, this and normally used seal means are different, one-way sealing circle or pad are adopted in general sealing mostly, push with corresponding rigid structure again and realize sealing, but because the interface breakout box need pass from confined space among the present invention, unidirectional hermetically-sealed construction is difficult to reach the requirement of excellent sealing, therefore the employing of novelty the structure of two way seal, experimental results show that, can reach very desirable sealing effectiveness, satisfy the needs of special applications fully.

For improving the anti-seismic performance of hard disk, used elastomer isolators among the present invention, its material can adopt rubber-like materials such as electrostatic prevention foam, electrostatic prevention plastic cement, concrete isolation method except above-mentioned the dish core on the cover spacer ring mode can also determine according to the characteristics and the actual needs of selected material, for example in inner walls highly suitable Elastic plastic-rubber projection etc. being set, all is optional mode as long as small harddisk and inner walls can be isolated and made small harddisk have relatively-stationary position.

In the above-described embodiments, adopt 2.5 inches hard disks as the dish core, 2 inches, 1.8 inches littler in fact dishes also can be selected, but because the too small meeting of disk body brings the obvious minimizing on the memory capacity and the increase of cost, therefore, cooperate 3.5 inches housing still more suitable with 2.5 inches dish core.

Claims

1, a kind of hard disk is characterized in that: comprise housing, dish core, interface breakout box and seal; Have the hard-disk interface that is complementary with its size on the described housing, have first spatial accommodation in the housing; Described dish core is a mini-hard disk, is contained in first spatial accommodation; Described seal is airtight with first spatial accommodation; Described interface breakout box passes described seal the interface of described dish core is forwarded to interface on the described housing from first spatial accommodation.

2, hard disk according to claim 1 is characterized in that: described housing comprises base and loam cake, and described first spatial accommodation is to fasten the space that forms by base and loam cake; Described seal comprises two O-ring seals up and down, lays respectively at base and loam cake, around the cavity setting that forms first spatial accommodation, the position correspondence of upper-lower seal circle.

3, hard disk according to claim 2 is characterized in that: described interface breakout box comprises flexible circuit board and switching circuit board; Described switching circuit board is connected with interface on the described housing; Also has second spatial accommodation of isolating in the described housing with first spatial accommodation; Described switching circuit board is contained in second spatial accommodation and is connected with interface on the described housing; Described flexible circuit board is clipped between described up and down two O-ring seals the switching circuit board that described dish core interface is connected in second spatial accommodation from first spatial accommodation.

4, according to any described hard disk of claim 1～3, it is characterized in that: also comprise elastomer isolators, described elastomer isolators is between the inner walls of the described dish core and first spatial accommodation.

5, hard disk according to claim 4 is characterized in that: described elastomer isolators is filled or is looped around between dish core and the inner walls in the mode of all or part of parcel.

6, hard disk according to claim 5 is characterized in that: described elastomer isolators is the elasticity spacer ring that is enclosed within on the dish core, and the thickness of spacer ring makes its outer wall can be close to inner walls.

7, according to any described hard disk of claim 1～3, it is characterized in that: the overall dimensions of described housing are consistent with 3.5 inches hard disks, and described dish core is 2.5 inches or less than 2.5 inches hard disk.

8, hard disk according to claim 4 is characterized in that: the overall dimensions of described housing are consistent with 3.5 inches hard disks, and described dish core is 2.5 inches or less than 2.5 inches hard disk.