CN104992719B - Miniature air spring notebook hard disk vibration isolator - Google Patents
Miniature air spring notebook hard disk vibration isolator Download PDFInfo
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- CN104992719B CN104992719B CN201510338693.XA CN201510338693A CN104992719B CN 104992719 B CN104992719 B CN 104992719B CN 201510338693 A CN201510338693 A CN 201510338693A CN 104992719 B CN104992719 B CN 104992719B
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- hard disk
- vibration isolator
- air spring
- shell
- vibration
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Abstract
The invention discloses a kind of miniature air spring vibration-isolator for laptop hard, it is characterised in that：The structure is to include the rotary body of shell and inner air, and the inner air is cylinder, and upper end face closure, lower ending opening, part is designed according to spline curve on the profile of the external shell, and lower part is logarithmic curve, remainder rounding off.The thickness of the rotation housing is not more than 0.3mm, and highly no more than 4mm, the upper end face closure, for supporting body of hard disk, lower face is an opening, is bonded by the housing of binding agent and notebook.Vibration attenuation mechanism of the invention based on air spring, effectively improves the vibration characteristics of notebook mechanical hard disk, and the vibration for not only reducing mechanical hard disk passes to laptop case, but also reduces the impact failure of notebook mechanical hard disk.
Description
Technical field
The present invention relates to a kind of miniature air spring notebook hard disk vibration isolator that can improve damping efficiency, belongs to machinery
Field of structural design.
Background technology
With the rapid development of electronics technology, laptop is into working, learn, indispensable instrument of living.For
Meet that user is diversified, high performance demand, laptop is continuously updated the replacement.Hard disk is as in laptop
Main storage, its use and shock resistance are played the role of vital for notebook computer performance raising.Mesh
The hard disk that preceding in the market laptop uses mainly has two kinds：Mechanical hard disk and solid state hard disc.Although solid state hard disc shock resistance
Property is strong, speed is fast, but due to higher price, so the use of mechanical hard disk accounts for mainstream in laptop.Mechanical hard disk
During work, magnetic disc high speed rotation, magnetic head is suspended in above card by the resistance of air, and servo control mechanism drives magnetic head along card
Radially move, realize and read/write is carried out to disk, when notebook is vibrated and impacted in use, hard disk can be made
Stalling and crash.Since laptop develops towards frivolous direction, the space of hard disk installation place is significantly limited
System, is installed in hard disk support bracket so mechanical hard disk currently on the market is substantially with screw, unspecial vibration isolation dress
Put.
The type of vibration isolator has many kinds, can be divided into according to Applied Materials difference：Metal spring vibration isolator, air spring every
Shake device, rubber shock absorber, liquid resistance vibration isolator etc..The present invention considers the limitation of volume and quality, selects air cushion shock absorber.
Air spring relies primarily on compressed air and plays vibration damping, its rigidity changes with the change of load, is a kind of strong nonlinearity
Damping element, damping efficiency is high, therefore extensively in antivibration area.But current air spring mainly apply to commercial automotive,
Bus and track traffic etc..It is actually rare for the miniature air spring of the small space installed in laptop, therefore will
According to the damping mechanism of air spring, the structure of suitable laptop hard disk vibration isolation is designed.With common miniature air spring
Vibration isolator is compared, and the present invention use spline curve and logarithmic curve superimposed curves as exterior contour, not only vertical stiffness satisfaction
Vibration isolation requirement, while two direction of level is taken into account, all with good stiffness characteristic, ensure good anti-vibration performance.
The content of the invention
Technical problem：It is an object of the invention to provide a kind of simple in structure, quality and small miniature air spring
Laptop hard vibration isolator, to improve the shock resistance of laptop hard.
Technical solution：To achieve these goals, the technical solution adopted by the present invention is：
A kind of miniature air spring vibration-isolator for laptop hard, including shell 1 and inner air 2, described is interior
Portion's air 2 is cylinder, and the shell 1 is rotary body, and upper end face closure, for supporting body of hard disk, lower face is an opening, is led to
The housing for crossing binding agent and notebook bonds；Part is made of some sections of Bezier curves in the side profile of the shell 1, every section
Pass through arc smooth transition between Bezier curve；What the side profile lower part of the shell 1 was designed according to logarithmic curve；It is described
Pass through arc smooth transition between logarithmic curve and Bezier curve.
Further, part is made of two sections of 3 Bezier curves in the side profile of the shell 1, two sections of Bezier curves
Between pass through arc smooth transition.
Further, the circular arc is tangent with Bezier curve every section described and the logarithmic curve respectively, the circular arc half
Footpath is 0.5mm.
Further, the material of the shell 1 is silica gel.
Further, the height of the vibration isolator is not more than 4mm, and the thickness of the shell 1 is not more than 0.3mm.
Further, the number of the vibration isolator is 3.
Beneficial effect:Compared with prior art, technical scheme has the advantages that：
(1) damping mechanism of the invention based on air spring, designs miniature air spring for laptop first
Vibration isolator, has nonlinear hardware features；
(2) present invention uses spline curve with logarithmic curve superimposed curves as exterior contour, and not only air spring is vertical
Meet vibration isolation requirement to rigidity, while take into account two direction of level, all with good stiffness characteristic, ensure good anti-vibration performance；
(3) present invention carries out vibration isolation in the narrow space where laptop hard using air dielectric, not only structure
Simply, and small light weight, the light-weighted developing direction of notebook is met；
(4) present invention is used as hard disk vibration isolation, and horizontal direction is easy for installation without installation requirement；
(5) present invention has good vibration damping and shock attenuation result, the shock resistance for the hard disk that can be effectively improved.
Brief description of the drawings
Fig. 1 is the graphics of vibration isolator of the present invention.
Fig. 2 is the sectional view for inventing the vibration isolator.
Fig. 3 is the invention vibration isolator scheme of installation.
Fig. 4 is vibration isolator exterior contour schematic diagram at M in Fig. 2.
Fig. 5 is the displacement diagram of vibration isolator structure of the present invention in present invention experiment.
Have in figure：1st, external shell；2nd, inner air；3rd, hard disk；4th, air spring.
Specific embodiment：
Below in conjunction with the accompanying drawings, the structure of the vibration isolator of the present invention is described in further detail.
Referring to Fig. 1 and Fig. 2, a kind of miniature air spring notebook hard disk vibration isolator of the present invention, which is to include shell 1
With the rotary body of inner air 2, the inner air 2 is cylindrical, upper end face closure, lower ending opening, the shell 1
Part is designed according to spline curve on profile, and lower part is logarithmic curve, remainder rounding off.Referring to Fig. 3, this practical institute
State vibration isolator upper end to contact with the hard disk of notebook, lower end is connected with laptop case by binding agent.The vibration isolator is not only tied
Structure is simple, small light weight, and vibration isolating effect is good.
Vibration isolator of the present invention is superimposed the exterior side profile of design with logarithmic curve using spline curve, makes its each several part
It can realize rounding off, not only the vertical stiffness of air spring meets vibration isolation requirement, while takes into account two direction of level, all has
Good stiffness characteristic, ensures good anti-vibration performance.Such as Fig. 4, outside vibration isolator of the present invention in side profile part according to Bezier
(translation Chinese is Bezier) Curve Design, is made of two sections of 3 Bezier curves, meets formula (1)：
Formula (1)
In formula (1)：P (t) represents the curve representation formula of housing profile topmost portion, and t represents the variable in curve representation formula,
0≤t≤1.By P (t) expression formulas as it can be seen that the curve is made of two sections of 3 Bezier curves, first segment and second segment Bezier are bent
Smoothly transitted between line with circular arc；In the present invention, the arc radius of transition is 0.5mm.P0、P1、P2、P4、P4、P5、P6And P7For
The control point of housing profile topmost Bezier curve, wherein P0、P1、P2And P3Line is the feature of first segment Bezier curve
Polygon, P4、P5、P6And P7Line is the characteristic polygon of second segment Bezier curve.Pass through circular arc between two sections of Bezier curves
Rounding off.In the present invention, the circular arc of transition is tangent with two sections of Bezier curves respectively, and the radius of circular arc is 0.5mm.
Logarithmic curve meets formula (2)：
Y=lnx formulas (2)
In formula (2)：Y represent housing profile lowermost part curve representation formula, x represent curve representation formula in variable, 1≤
X≤4, logarithmic curve coordinate system are local coordinate system, and reference axis origin is O.A points are the starting point of logarithmic curve, meanwhile, and it is right
The intersection point of number curve and x-axis.Smoothly transitted between logarithmic curve and second segment Bezier curve with circular arc.In the present invention, transition
Circular arc it is tangent with logarithmic curve and second segment Bezier curve respectively, the radius of circular arc is 0.5mm.
Preferably, the material of the miniature air spring vibration-isolator is silica gel.Used compared to traditional vibration isolator
Rubber, rigidity is larger, can not realize the vibration isolation of hard disk, present invention ensure that the material of vibration isolator is sufficiently soft, ensures vibration isolating effect, drop
Damage of the low impact vibration to hard disk.
Preferably, the height of the vibration isolator is not more than 4mm, the thickness of housing is not more than 0.3mm.Both meet to design
The requirement in space, in turn ensure that the feasibility of processing.
Preferably, the number of the vibration isolator is 3.While Rigidity Matching, decoupling is realized.
Vibration isolator is an elastic component, can carry out injection molding by mould and form, material is silica gel.In use, can be with
3 vibration isolators are uniformly attached on the housing opposite with hard disk.
Below by emulation experiment, have well to prove the miniature air spring notebook hard disk vibration isolator of the present invention
Anti-vibration performance.Emulation experiment is using commercialization CAE software ABAQUS simulation softwares.Simulation object is：The miniature sky of structure of the present invention
Gas spring laptop hard vibration isolator.
Simulation result is referring to Fig. 5.Displacement diagram when working for vibration isolator structure of the present invention.When hard disk is impacted, effect
Power is applied to vibration isolator by hard disk and closes end, and the upper surface of vibration isolator makes volume-diminished, so that internal because being subject to active force
Pressure increase, inner air and exterior silica gel collective effect, so as to reach the effect of vibration isolation.Can be with from the simulation result of Fig. 5
Find out：When the end to vibration isolator adds 2 times of gravitational loads, the overall deformation of vibration isolator is 0.08171mm, calculates vibration isolation
The rigidity of device is 24KN/m.3 vibration isolators use at the same time, are 72KN/m after the superposition of vibration isolation rigidity, meet that shock isolation rigidity will
Ask, and vibration isolation efficiency is up to 90%.Therefore, drawn from emulation experiment, using structure of the present invention miniature air spring hard disk every
Shake device, can play the effect of good shock isolation.
The foregoing is merely the present invention better embodiment, protection scope of the present invention not using the above embodiment as
Limit, as long as those of ordinary skill in the art's equivalent modification that disclosure is made according to the present invention or change, should all include power
In protection domain described in sharp claim.
Claims (6)
1. miniature air spring notebook hard disk vibration isolator, it is characterised in that：It is described including shell (1) and inner air (2)
Inner air (2) is cylinder, and the shell (1) is rotary body, upper end face closure, for supporting body of hard disk, lower face one
Opening, is bonded by the housing of binding agent and notebook；Part is by some sections of Bezier curves in the side profile of the shell (1)
Form, pass through arc smooth transition between every section of Bezier curve；The side profile lower part of the shell (1) is according to logarithmic curve
Design；Pass through arc smooth transition between the logarithmic curve and Bezier curve.
2. miniature air spring notebook hard disk vibration isolator according to claim 1, it is characterised in that：The shell (1)
Side profile on part be made of two sections of 3 Bezier curves, pass through arc smooth transition between two sections of Bezier curves.
3. miniature air spring notebook hard disk vibration isolator according to claim 1, it is characterised in that：The circular arc difference
Tangent with Bezier curve every section described and the logarithmic curve, the arc radius is 0.5mm.
4. miniature air spring notebook hard disk vibration isolator according to claim 1, it is characterised in that：The shell (1)
Material be silica gel.
5. miniature air spring notebook hard disk vibration isolator according to claim 1, it is characterised in that：The shell (1)
Thickness be not more than 0.3mm, highly no more than 4mm.
6. miniature air spring notebook hard disk vibration isolator according to claim 1, it is characterised in that：The vibration isolator exists
The number used in hard disk vibration isolation is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510338693.XA CN104992719B (en) | 2015-06-17 | 2015-06-17 | Miniature air spring notebook hard disk vibration isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510338693.XA CN104992719B (en) | 2015-06-17 | 2015-06-17 | Miniature air spring notebook hard disk vibration isolator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104992719A CN104992719A (en) | 2015-10-21 |
| CN104992719B true CN104992719B (en) | 2018-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510338693.XA Expired - Fee Related CN104992719B (en) | 2015-06-17 | 2015-06-17 | Miniature air spring notebook hard disk vibration isolator |
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| CN (1) | CN104992719B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117966998A (en) * | 2024-04-02 | 2024-05-03 | 洛阳双瑞橡塑科技有限公司 | Impact-resistant protective floor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2840956Y (en) * | 2005-06-09 | 2006-11-29 | 张西航 | Portable flexible lumbar tractor |
| CN2909460Y (en) * | 2006-03-31 | 2007-06-06 | 艾讯股份有限公司 | Anti-vibration device for hard disk |
| CN102269234A (en) * | 2011-07-19 | 2011-12-07 | 杨洁 | Diaphragm air spring with auxiliary air chamber for adjusting dynamic stiffness |
-
2015
- 2015-06-17 CN CN201510338693.XA patent/CN104992719B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2840956Y (en) * | 2005-06-09 | 2006-11-29 | 张西航 | Portable flexible lumbar tractor |
| CN2909460Y (en) * | 2006-03-31 | 2007-06-06 | 艾讯股份有限公司 | Anti-vibration device for hard disk |
| CN102269234A (en) * | 2011-07-19 | 2011-12-07 | 杨洁 | Diaphragm air spring with auxiliary air chamber for adjusting dynamic stiffness |
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| Publication number | Publication date |
|---|---|
| CN104992719A (en) | 2015-10-21 |
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Granted publication date: 20180424 Termination date: 20180617 |