CN101258551A - Magnetic disc device - Google Patents
Magnetic disc device Download PDFInfo
- Publication number
- CN101258551A CN101258551A CNA2005800513213A CN200580051321A CN101258551A CN 101258551 A CN101258551 A CN 101258551A CN A2005800513213 A CNA2005800513213 A CN A2005800513213A CN 200580051321 A CN200580051321 A CN 200580051321A CN 101258551 A CN101258551 A CN 101258551A
- Authority
- CN
- China
- Prior art keywords
- housing
- weight
- magnetic head
- disk set
- vibration
- 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.)
- Pending
Links
Images
Landscapes
- Moving Of Heads (AREA)
- Supporting Of Heads In Record-Carrier Devices (AREA)
Abstract
A magnetic disc device is provided with a case for storing a recording medium and a head for recording and reproducing information in and from the recording medium; and a vibration suppression mechanism for reducing vibration of the case. The magnetic disc device is characterized in that the vibration suppression mechanism is provided with a weight attached to the case; and a deformation reducing section for reducing deformation of the case due to the weight.
Description
Technical field
The present invention relates generally to disk set, particularly relate to the vibration suppressing mechanism of disk set.The present invention is applicable to the vibration suppressing mechanism that for example uses in hard disk unit (Hard Disc Drive:HDD).
Background technology
In recent years, be accompanied by popularizing of network etc., provide that cheap record comprises image, image is increasing in the demand of the disk set of interior high capacity information.In the disk of high record density, need the high position precision of magnetic head, and need when making the housing that holds disk accurately, reduce its vibration or distortion.Noise when in addition, reducing action and when making, effectively utilize the environmental practice of material or the like also very important.
In order to make the shape of housing accurately, make by aluminium diecasting.In addition,,, weight (vibration suppression parts) is installed in the housing, so that the vibrational energy decay in order to reduce noise and vibration all the time.
As prior art, patent documentation 1 to 4 is for example arranged.
Patent documentation 1: the Japanese documentation spy opens flat 9-320059 communique;
Patent documentation 2: the Japanese documentation spy opens flat 7-252506 communique;
Patent documentation 3: the Japanese documentation spy opens flat 2001-346924 communique;
Patent documentation 4: the Japanese documentation spy opens flat 2003-216141 communique.
Summary of the invention
Because the proportion less (proportion is 2.7) of aluminium, iron material (proportion is 7.9), stainless steel material (proportion is 7.9) and the brass material (proportion is 8.3) etc. that therefore proportion are higher than the vibration suppression parts use comparatively favourable in the vibration suppression parts.Wherein, because the material price of iron material, stainless steel material, copper based material rises successively, therefore consider preferred iron material or stainless steel from the cost aspect.But as shown in table 1, differing greatly of iron material and stainless linear expansivity and aluminium may bring the thermal deformation of housing.Thereby, consider the preferred linear expansivity coefficient copper based material (brass) more close that use from aspect of performance with aluminum ratio.On the other hand, be defined, therefore need process the vibration suppression parts accurately, thereby also require the easiness of manufacturing because the zone of vibration suppression parts can be installed.Particularly, metal vibration suppression parts are processed owing to carrying out mold pressing, thereby can bring the problem of making difficulty, cost raising.
Table 1
| Material | Proportion | Linear expansion coefficient (* 10 -6/K) | Suppose that with poor (the μ m) of the elongation of aluminium weight vibration suppression part length is that 70mm, temperature rise 80 ℃ |
| Aluminium (ADC12) | 2.68 | 21.0 | -- |
| Iron material | 7.85 | 11.7 | 52 |
| Stainless steel | 7.90 | 17.3 | 21 |
| Brass | 8.46 | 18.4 | 15 |
| Kirsite | 6.60 | 27.0 | 34 |
Therefore, exemplary purpose of the present invention is, provide have the distortion that can reduce housing, easy to manufacture and realized the disk set of the vibration suppressing mechanism of low price.
Disk set as one aspect of the invention is characterised in that: it comprises: the housing of housing recording and magnetic head, described magnetic head record information in the described recording medium or from described recording medium reproducing information; And the vibration suppressing mechanism that reduces the vibration of described housing; Described vibration suppressing mechanism comprises: be installed in the weight on the described housing; And distortion minimizing portion, reduce the distortion of the described housing that causes by described weight.In this disk set, reduce the vibration (and then thing followed noise) of housing by the weight of vibration suppressing mechanism, and reduce the distortion of the housing that causes by weight by the distortion minimizing portion of vibration suppressing mechanism.Consequently, can keep the high-precision bearing accuracy of magnetic head to disk.In addition, even the material of use and housing exists the material of the cheapness of thermal expansion rate variance also can prevent the distortion of housing by distortion minimizing portion, therefore can realize the reduction of cost.
There are some modes in described distortion minimizing portion.For example, distortion minimizing portion is configured in the isolation part of reducing the scope of described weight and described housing thermo-contact between described weight and the described housing (for example, be arranged between described housing and the described weight space or thermal insulation material).The isolation part can reduce the scope of weight and housing thermo-contact, thereby can reduce the distortion that caused by the thermal expansion rate variance of weight and housing.In addition, described distortion minimizing portion also can be a radiating part (for example, being arranged on the lip-deep concavo-convex heat radiator of described weight) of accelerating the heat radiation of described weight.In this structure, reduce the temperature variation of weight by heat radiation, thereby reduce the distortion that causes because of the thermal expansion rate variance.In addition, described distortion minimizing portion also can be arranged on the elastic adhesive layer between described housing and the described weight.The elastic adhesive layer absorbs the distortion of weight, thereby can prevent that described distortion from feeding through on the housing.
Described distortion minimizing portion also can be formed in the notch on the described weight.In this structure, pliability ground constitutes weight, reduces whole deflection, reduces the deflection that feeds through on the housing thus.And described distortion minimizing portion also can be the fixed part that a position described weight is fixed on the described housing.Because the fixed part number is made as one, there is not the constrained that the distortion of weight is passed to housing, therefore can reduce the deflection that feeds through on the housing.
Disk set as another aspect of the present invention is characterised in that, comprising: the housing of housing recording and magnetic head, described magnetic head record information in the described recording medium or from described recording medium reproducing information; And the vibration suppressing mechanism that reduces the vibration of described housing; Described vibration suppressing mechanism comprises weight, and described weight contains at least a in the resin that added metallic addition, agglomerated material, the powder injection molding material, and is installed on the described housing.Because this weight can die forming, therefore easy to manufacture, can realize the reduction of cost.
Disk set as another aspect of the present invention is characterised in that, comprising: the housing of housing recording and magnetic head, described magnetic head record information in the described recording medium or from described recording medium reproducing information; And the vibration suppressing mechanism that reduces the vibration of described housing; This vibration suppressing mechanism comprises weight, and described weight passes through the die cast (die-casting) of high specific gravity motlten metal casting or disappearance mould (lost-wax, dewax) casting and is shaped, and is installed on the described housing.Because this weight can injection molding, therefore easy to manufacture, can realize the reduction of cost.
By reading the embodiment that describes below with reference to accompanying drawing, can understand other purposes of the present invention and more feature.
Description of drawings
Fig. 1 is the in-built vertical view of expression as the hard disk drive of one embodiment of the invention;
Fig. 2 is the amplification stereogram of the magnetic head portion of hard disk drive shown in Figure 1;
Fig. 3 (a) is to represent that magnetic head shown in Figure 1 stows left view, vertical view and the right view of the detailed construction of joining to Fig. 3 (c);
Fig. 4 is the concise and to the point rear view of hard disk drive shown in Figure 1;
Fig. 5 is the part exploded perspective view of the rear side of hard disk drive shown in Figure 1;
Fig. 6 is the block diagram of the control system of hard disk drive shown in Figure 1;
Fig. 7 is the concise and to the point stereographic map of the rear side of the weight of Fig. 4 and hard disk drive shown in Figure 5 when having 3D shape;
Fig. 8 (a) and Fig. 8 (b) are the concise and to the point phantom views of first embodiment of Fig. 4 and vibration suppressing mechanism shown in Figure 5;
Fig. 9 is the concise and to the point phantom view of second embodiment of Fig. 4 and vibration suppressing mechanism shown in Figure 5;
Figure 10 is the concise and to the point phantom view of the 3rd embodiment of Fig. 4 and vibration suppressing mechanism shown in Figure 5;
Figure 11 is the concise and to the point phantom view of the 4th embodiment of Fig. 4 and vibration suppressing mechanism shown in Figure 5;
Figure 12 is the concise and to the point phantom view of the 5th embodiment of Fig. 4 and vibration suppressing mechanism shown in Figure 5.
Embodiment
Below, with reference to accompanying drawing HDD 100 as one aspect of the invention is described.As shown in Figure 1, HDD 100 holds in housing 102: as a plurality of disks 104, Spindle Motor 106, magnetic head pile component (Head Stack Assembly:HSA) 110, printed circuit board 160 and the vibration suppressing mechanism 170 of recording medium.Here, Fig. 1 is the in-built concise and to the point vertical view of HDD 100.In addition, Fig. 4 and Fig. 5 show printed circuit board 160 and vibration suppressing mechanism 170.Here, Fig. 4 is the rear view of HDD 100, and Fig. 5 is the part exploded perspective view of the rear side of HDD 100.
Spindle Motor 106 for example comes spinning disk 104 with the high speed of 15000rpm etc., and for example having does not have illustrated Brushless DC motor and as the main shaft of its rotor portion.For example, when using two disks 104, disk, pad, disk, anchor clamps are overlayed on the main shaft successively, and fix by bolt with the main shaft binding.
HSA 100 has magnetic head portion 120, suspension 130, carriage 140 and substrate 150.
As shown in Figure 2, magnetic head portion 120 comprises: the AI that forms approximate rectangular parallelepiped
2O
3The slide block 121 of-TiC (AlTiC) system; Flow out with the air of slide block 121 that termination is closed, and the built-in AI that reads and write the magnetic head 122 of usefulness
2O
3The built-in film 123 of magnetic head element of (aluminium oxide) system.Here, Fig. 2 is the amplification stereogram of magnetic head portion 120.The built-in film 123 of slide block 121 and magnetic head element is determined a medium opposite face relative with disk 104, the i.e. face 124 that suspends.Based on the rotation of disk 104 and the air-flow 125 that generates caught by suspension face 124.
On suspension face 124, be formed with two guide rails 126 that extend to the air outflow end from air inflow end.End face at each guide rail 126 defines so-called ABS (air cushion surface) 127.ABS 127 produces buoyancy along with the motion of air-flow 125.The magnetic head 122 that is embedded in the built-in film 123 of magnetic head element is exposed to ABS 127 times.In addition, the suspended pattern of magnetic head portion 120 is not limited to this mode, can use other suspended patterns such as known dynamic pressure lubricating system, static pressure lubricating system, piezoelectricity control mode.In addition, Starting mode both can adopt magnetic head portion 120 and the disk 104 contacted start-stop modes that contact when stopping, also can adopt following dynamic load (Dynamic Loading) or slope to load (Ramp Load) mode, that is: when stopping, magnetic head portion 120 is lifted from disk 104, and by the slope that is positioned at disk 104 outsides magnetic head portion 120 is remained and disk 104 non-contacting states, when starting, magnetic head portion 120 is dropped on the disk 104 under maintaining part.
Because carriage 140 also is called as actuator, is also referred to as E piece or actuator (AC) piece owing to the cross section roughly is the E word shape.Carriage 140 has the function to direction of arrow rotational head portion 120 shown in Figure 1, and as Fig. 1 and Fig. 3 (a) to shown in Fig. 3 (c), have voice coil motor 141, fulcrum 142, FPC 143 and arm 144.Here, Fig. 3 (a) is the left view of HSA 110, and Fig. 3 (b) is the vertical view of HSA 110, and Fig. 3 (c) is the right view of HSA 110.Here show the carriage 140 of six magnetic head portions 120 that driving writes down, reproduces the two sides of three disks 104, but much less, the number of disk is not limited to three.
Arm 144 is can be around fulcrum 142 and rotation or the aluminum rigid body that swingingly is provided with, is provided with through hole on its top.Suspension 130 is installed on the arm 144 by the through hole and the substrate 150 of this arm 144.Shown in Fig. 3 (a) and Fig. 3 (c), when watching from the side, arm 144 forms pectination.
Substrate 150 has suspension 130 is installed in function on the arm 144, and the one end is welded on the suspension 130 by laser, the other end by riveted and fixed on arm 144.
As shown in Figure 4 and Figure 5, printed circuit board 160 is fixed on the bottom surface of housing 102, and loads control system shown in Figure 6.Here, Fig. 6 shows the control block diagram of the control system of HDD 100.This control system is the control example of magnetic head 122 when having induction magnetic head and MR magnetic head.The control system 160 of HDD100 has control part 161, interface 162, hard disk controller (hereinafter referred to as " HDC ") 163, writes modulation portion 164, reads demodulation section 165, read current control part 166 and magnetic head IC 167, and this control system 160 is embodied in control panel etc. in HDD 100.Certainly, also can not constitute one, for example only magnetic head IC 167 is installed in the carriage 140.
As shown in Figure 4 and Figure 5, vibration suppressing mechanism 170 is set at the bottom surface of housing 102.Vibration suppressing mechanism 170 has the vibration of minimizing housing 102 and the function of noise.The reason that causes noise and vibration is as follows: the rotation that (1) drives the motor 106 of disk 104 is delivered on the housing 102, thereby has caused HDD 100 whole resonance; (2) owing to drive the reacting force of seek action of the carriage 140 of magnetic head portion 120, microvibrations take place in housing 102, thus HDD 100 whole resonance.The resonance of HDD 100 integral body becomes residual oscillation, and causes the positioning performance of magnetic head 122 to descend.For the vibrational energy that reaches dampening housing 102 and the resonant frequency that staggers are purpose, effectively way is to increase the weight of the weight of housing 102, therefore, vibration suppressing mechanism 170 is installed on the HDD 100 by screw 180 as weight 171.
In this respect, pay attention to weight, can consider to form weight 171 with hyperbaric metal material.At this moment, there are following manufacturing and cost problem.First: as mentioned above, in HDD 100, need avoid printed circuit board 160 and dispose weight 171, thereby the installing space of weight 171 is limited.In addition, in order to strengthen weight, need the thickness of slab about number mm.If it is big that thickness of slab becomes, the mold pressing processing machine will become greatly, and die cost and processing charges will be increased.Second: in mold pressing processing, need 1～1.5 times " stamping-out rim charge width ", " stamping-out scrap (bridge) material width ", " the pilot pin guiding rim charge width " of thickness of slab, thereby, cause fee of material to increase by the waste of material.The 3rd: in iron material, stainless steel, brass, because the processability of brass material is good, proportion is also big, can bring into play the function of weight most effectively, but material unit price height needs to carry out antirust processing such as gold-plated in addition.On the other hand, the processability of iron material is good, the material unit price is also the most cheap, but need carry out antirust processing such as gold-plated, in addition, with differing greatly of the coefficient of thermal expansion of aluminium, can cause the thermal deformation of housing 102.In addition, stainless steel does not need surface treatment, but the bill of materials high price is expensive, and shearing force is bigger, the mold pressing processing difficulties of thick material.In addition, differing greatly of the coefficient of thermal expansion of stainless steel and aluminium can cause the thermal deformation of housing 102.The the 4th: very thick or according to the situation of installing space and needs when making 3D shape, the mold pressing processing difficulties need be carried out cut, thereby can cause waste of material or processing charges to increase when the thickness of slab of weight 171.As shown in Figure 7, the weight 171A with this 3D shape has the chimeric projection 172 of pit (not having diagram) some and housing 102, to increase the weight of this weight 171A.Here, Fig. 7 is the concise and to the point stereographic map of rear side with weight 171A of 3D shape.
The vibration suppressing mechanism 170 of present embodiment has weight 171 and reduces the distortion minimizing portion of the distortion of the housing 102 that is caused by weight 171.Distortion minimizing portion has several modes.
The distortion minimizing portion of first embodiment is by the isolation part of specific implementation for weight 171 and housing 102 heat are separated.If weight 171 contacts with housing 102, in the scope of contact heat conduction can take place then, because the difference of both coefficient of thermal expansions, housing 102 can deform.Therefore, in the present embodiment, reduce the scope of weight 171 and housing 102 thermo-contacts, reduce described distortion.Fig. 8 (a) and Fig. 8 (b) are that expression will be out of shape the concise and to the point cut-open view of part that minimizing portion specific implementation is the example of thermal impedance portion.In Fig. 8 (a), on the face relative of weight 171B, form pit with housing 102, the isolation part is space 172a by specific implementation.In addition, in Fig. 8 (b), equally form pit on the face relative with housing 102 of weight 171B, the isolation part is embodied in the thermal insulation material 172b that is full of space 172a.In addition, in the present embodiment, (space 172a) is formed on the weight 171B with pit, but also can be formed on the housing 102.Determine the scope or the volume of pit by the weight that weight 171B is required and the size of the thermal impedance that needs.
The distortion minimizing portion of second embodiment is by the radiating part of specific implementation for the heat radiation of quickening weight 171.In this structure, reduce the temperature variation of weight 171 by heat radiation, thereby reduce the distortion that causes because of the thermal expansion rate variance.Fig. 9 is that expression will be out of shape the concise and to the point cut-open view of part that minimizing portion specific implementation is the example of radiating part.In Fig. 9, radiating part is the heat radiator 173 that the lip-deep section that is formed on weight 171C is concaveconvex shape by specific implementation.Because heat radiator 173 is a concaveconvex shape, surface area increases, and has therefore improved radiating effect.In the present embodiment, heat radiator 173 has a plurality of tabular structures of arranging to a direction, but is not defined as the shape that increases surface area, also can form quadrangular prism shape or needle-like etc.By the size of weight that weight 171C is required and the radiating effect that needs determine the scope of heat radiator 173, highly, shape.
The distortion minimizing portion of the 3rd embodiment is the elastic adhesive layer 174 that is arranged between housing 102 and the weight 171 by specific implementation, so that the distortion of weight 171 does not feed through on the housing 102.In this structure, elastic adhesive layer 174 absorbs the distortion of weight 171, thereby prevents that it from feeding through on the housing 102.Figure 10 is that expression will be out of shape the concise and to the point cut-open view of part that minimizing portion specific implementation is the example of elastic adhesive layer 174.Also can obtain to utilize the vibrational energy attenuating of viscoelastic material VEM (VISCOELASTIC MATERIAL) by elastic adhesive layer 174.It is resin that elastic adhesive layer 174 for example can use propylene system, epoxy.
The distortion minimizing portion of the 4th embodiment is the notch 175 that is formed on the weight 171D by specific implementation.This structure pliability ground constitutes weight 171, reduces whole deflection, reduces the deflection that feeds through on the housing 102 thus.Figure 11 is that expression will be out of shape the concise and to the point cut-open view of part that minimizing portion specific implementation is the example of notch 175.Determine scope, shape or the number of notch 175 by weight that weight 171D is required and the pliability that needs.
The distortion minimizing portion of the 5th embodiment is with the fixed part of weight 171E a stationkeeping by specific implementation.In Fig. 4 and Fig. 5, by screw retention (the reference number 171a that Fig. 5 represents is a screw), therefore, the distortion of the weight 171 between two screws 180 is delivered on the housing 102 by screw 180 weight 171 two positions.On the other hand, as shown in figure 12,, then there are not the parts that the distortion of weight 171 passed to housing 102, therefore can reduce the deflection that feeds through on the housing 102 if pass through screw 180 at a stationkeeping weight 171E.Here, Figure 12 is that expression will be out of shape minimizing portion specific implementation and is concise and to the point stereographic map at the example of the fixed part (that is, screw 171a and screw 180) of a stationkeeping weight 171E.
By having the vibration suppressing mechanism 170 of above-mentioned distortion minimizing portion, do not use iron material or stainless steel even do not use brass, also can reduce the distortion of the housing 102 that causes by the thermal expansion rate, therefore can realize the reduction of cost.
On the other hand, as the additive method of realizing that cost reduces, can consider to make material economy and manufacturing to become easy.For material economy and manufacturing become easily, preferably do not use mold pressing processing.
Therefore, in the present embodiment, constitute weight by the resin that has added metallic additions such as tungsten, stainless steel, iron, titanium.Weight by needs is determined resin content, in the present embodiment, can regulate in the scope of proportion 2～11.Resin can be made high-precision shape, can adopt the injection molding that is easy to make, as long as make shaping dies (mould), manufacturing just is easy to.
By using the high-specific weight resin material, can obtain following effect.First: owing to can regulate proportion by the metallic addition of regulating resin, thereby the vibration characteristics of scalable housing 102.Second:, then can reduce part dimension if use proportion than iron or the high material of brass.The the 3rd: owing to utilize injection molding, so the degree of freedom height of shape, can be filled into the dead zone of housing.Therefore, also make 3D shape shown in Figure 7 easily.The 4th: resin does not need to carry out the surface treatment of antirust usefulness.The 5th: owing to make, therefore can as mold pressing processing or cut, not produce a large amount of metal fillings by injection molding, but the waste of economical with materials, the environmental-protecting performance excellence.
The high-specific weight resin material can obtain by for example patent documentation 1 or trade name " THERMOCOMPHSG " (LNG engineering plastics company, Japanese GE Plastics Company).
In addition, instead of resins and use agglomerated material, powder injection molding material also can obtain same effect.The metal injection molding can obtain by patent documentation 2 for example or trade name " コ バ one Le " (Kovar: Kovar alloy, Hitachi Metals company).Powder metallurgy (sintering) can obtain by patent documentation 3 and 4 for example, trade name " ヘ PVC one ア ロ イ " (Heavy Alloy: heavy metal, Nippon Tungsten).
And in the present embodiment, the high specific gravity motlten metal of casting constitutes weight by casting by die cast (die-casting) or disappearance mould (lost-wax, dewax).Adopt die casting or disappearance die casting, can obtain following effect.First: the injection molded material of die cast or lost foam casting can be used comparatively cheap iron, kirsite (proportion is 6.60), stainless steel and brass etc.Second: owing to utilize casting, so the degree of freedom height of shape, can be filled in the dead zone of housing parts.Therefore, also make 3D shape shown in Figure 7 easily.The 3rd: owing to make, therefore can as mold pressing processing or cut, not produce a large amount of metal fillings by casting, but the waste of economical with materials, the environmental-protecting performance excellence.
In the action of HDD 100, control part 161 drive shaft motors 106 make disk 104 rotations.The airflow that produces with the rotation of disk 104 is involved between slide block 121 and the disk 104, forms small air film, thus the buoyancy that 121 effects suspend from disk face to slide block.On the other hand, suspension 130 applies elastic pressure to slide block 121 on the direction relative with the buoyancy of slide block 121.Balance between this buoyancy and the elastic force makes magnetic head portion 120 and the fixing interval of disk 104 apart.As mentioned above, reduce the vibration or the noise of housing 102, and reduce the distortion of the housing 102 that causes by the thermal expansion rate variance between housing 102 and the weight 171 by distortion minimizing portion by vibration suppressing mechanism 170.Therefore, can carry out the location of magnetic head 122 accurately.
Then, control part 161 control carriages 140 make carriage 140 rotate around fulcrum 142, thereby make magnetic head 122 search out on the goal track of disk 104.Like this, present embodiment so adopts the swing arm mode, and wherein slide block 121 marks arc track around fulcrum 142, but the present invention also can use the linear fashion that slide block 121 marks straight path.
Writing fashionablely, control part 161 receives the data that epigyny device such as illustrated PC never obtains via interface 162, select induction magnetic head, and sends to by HDC 163 and to write in the modulation portion 164.In response to this, write modulation portion 164 after having modulated data, the data after the described modulation are sent to magnetic head IC 167.After the data of magnetic head IC 167 after will modulating are amplified, it is offered as write current write induction magnetic head.Thus, induction magnetic head writes goal track with data.
When reading, control part 161 is selected the MR magnetic head, and the read current of stipulating is sent to read current control part 166 by HDC163.In response to this, read current control part 166 is supplied to the MR magnetic head by magnetic head IC 167 with read current.Thus, the MR magnetic head is read the information of expectation from the magnetic track of the expectation of disk 104.
The preferred embodiment of the present invention more than has been described, but has the invention is not restricted to these embodiments, can carry out various distortion and change.For example, the present invention is illustrated HDD, but the present invention also can be applied in the disk set (magneto-optical disc apparatus etc.) of other type.
Industrial applicibility
According to the present invention, can provide to have that taken into account low price and reduced housing distortion or easy to manufacture and realized the disk set of the vibration suppressing mechanism of low price.
Claims (10)
1. a disk set is characterized in that, comprising:
The housing of housing recording and magnetic head, described magnetic head record information in the described recording medium or from described recording medium reproducing information; And
Reduce the vibration suppressing mechanism of the vibration of described housing;
Described vibration suppressing mechanism comprises:
Be installed in the weight on the described housing; And
Distortion minimizing portion reduces the distortion of the described housing that is caused by described weight.
2. disk set as claimed in claim 1 is characterized in that,
Described distortion minimizing portion is configured in the isolation part of reducing the scope of described weight and described housing thermo-contact between described weight and the described housing.
3. disk set as claimed in claim 2 is characterized in that, described isolation part is arranged on space or the thermal insulation material between described housing and the described weight.
4. disk set as claimed in claim 1 is characterized in that, described distortion minimizing portion is a radiating part of accelerating the heat radiation of described weight.
5. disk set as claimed in claim 4 is characterized in that, described radiating part is arranged on the lip-deep jog of described weight.
6. disk set as claimed in claim 1 is characterized in that, described distortion minimizing portion is arranged on the elastic adhesive between described housing and the described weight.
7. disk set as claimed in claim 1 is characterized in that, described distortion minimizing portion is formed in the notch on the described weight.
8. disk set as claimed in claim 1 is characterized in that, described distortion minimizing portion is the fixed part that a position described weight is fixed on the described housing.
9. a disk set is characterized in that, comprising:
The housing of housing recording and magnetic head, described magnetic head record information in the described recording medium or from described recording medium reproducing information; And
Reduce the vibration suppressing mechanism of the vibration of described housing;
Described vibration suppressing mechanism comprises weight, and described weight contains at least a in the resin that added metallic addition, agglomerated material, the powder injection molding material, and is installed on the described housing.
10. a disk set is characterized in that, comprising:
The housing of housing recording and magnetic head, described magnetic head record information in the described recording medium or from described recording medium reproducing information; And
Reduce the vibration suppressing mechanism of the vibration of described housing;
Described vibration suppressing mechanism comprises weight, and described weight is shaped by die cast or the lost foam casting with high specific gravity motlten metal casting, and is installed on the described housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005800513213A CN101258551A (en) | 2005-08-30 | 2005-08-30 | Magnetic disc device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005800513213A CN101258551A (en) | 2005-08-30 | 2005-08-30 | Magnetic disc device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101258551A true CN101258551A (en) | 2008-09-03 |
Family
ID=39892298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005800513213A Pending CN101258551A (en) | 2005-08-30 | 2005-08-30 | Magnetic disc device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101258551A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376856A (en) * | 2013-08-13 | 2015-02-25 | 希捷科技有限公司 | Component configured to stiffen an electric motor assembly |
| CN108580931A (en) * | 2018-07-27 | 2018-09-28 | 重庆宏钢数控机床有限公司 | Hollow type lathe material cleans material-receiving device |
| CN111863037A (en) * | 2020-07-28 | 2020-10-30 | 粤融(广州)科技有限公司 | Computer cavity device for avoiding impact sound caused by abnormality during displacement |
-
2005
- 2005-08-30 CN CNA2005800513213A patent/CN101258551A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376856A (en) * | 2013-08-13 | 2015-02-25 | 希捷科技有限公司 | Component configured to stiffen an electric motor assembly |
| CN108580931A (en) * | 2018-07-27 | 2018-09-28 | 重庆宏钢数控机床有限公司 | Hollow type lathe material cleans material-receiving device |
| CN108580931B (en) * | 2018-07-27 | 2024-03-05 | 重庆宏钢数控机床有限公司 | Clean material receiving device of fretwork formula lathe material |
| CN111863037A (en) * | 2020-07-28 | 2020-10-30 | 粤融(广州)科技有限公司 | Computer cavity device for avoiding impact sound caused by abnormality during displacement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8345387B1 (en) | Disk drive with transverse plane damper | |
| US7564650B2 (en) | Head apparatus having a slider with first and second positive pressure parts and a negative pressure part and disc drive having the same | |
| US20090067086A1 (en) | Storage device | |
| JP2010140588A (en) | Head slider and storage device | |
| JP4197296B2 (en) | Ramp load device and disk device having the same | |
| EP1884927A2 (en) | Head gimbal assembly and hard disk drive having the same | |
| US7589933B2 (en) | Storage | |
| CN101258551A (en) | Magnetic disc device | |
| US20080137228A1 (en) | Magnetic disc drive | |
| WO2007043109A1 (en) | Information storage | |
| US6661615B2 (en) | Apparatus and method for depopulating a disk drive head stack assembly by utilizing an overmolded actuator | |
| KR100744129B1 (en) | Balancer, head stack assembly with the same, and method for manufacturing the balancer and overmold of the head stack assembly | |
| KR20100118333A (en) | Head stack assembly and hard disk drive with the same | |
| JP2006277908A (en) | Head stack assembly and its manufacturing method and magnetic disk device having the head stack assembly | |
| US7511923B2 (en) | Head suspension, information storage apparatus, and lead structure | |
| CN101369449A (en) | Disk device | |
| JP4322223B2 (en) | Manufacturing method of head stack assembly | |
| US20040130823A1 (en) | Head suspension assembly having smaller stray capacitance | |
| JP2006252737A (en) | Yoke for voice coil motor and recording disk driving apparatus | |
| US7599150B2 (en) | Head stack assembly, its manufacturing method, and magnetic disc drive having the same | |
| US9177579B2 (en) | Single-piece yoke damper for voice coil actuator | |
| KR20100113394A (en) | Hard disk drive | |
| US20070052311A1 (en) | Motor having dynamic pressure bearing and disc drive having the motor | |
| US7602587B2 (en) | Information storage that includes a housing and a printed board provided on the housing, a printed board including a coil that forms an electromagnet in cooperation with a magnetic member, and method for manufacturing an electromagnetic latch unit | |
| JPH09312068A (en) | Magnetic recording/reproducing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080903 |