JP2002008358A - Magnetic disk unit mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an HDD mounting unit structure which prevents the magnetic head positioning accuracy of an HDD relating to settling and the magnetic head positioning by accompanying heat generation by the high-speed rotation of a disk from being adversely affected by the vibration of the HDD caused by the driving reaction force of a moving means (actuator) in settling and is good in cooling efficiency. SOLUTION: The HDD is built into the inner side of a high-rigidity connecting box of a box shape and a guide consisting of a thermoplastic high- polymer blank is installed on its outer side. A part fitting to the connecting box is provided with a pedestal and the guide and the connecting box and the HDD are clamped in the segment of this pedestal. A means for reducing the coefficient of friction is disposed between the HDD mounting units in contact with the wall surface, by which the adverse influence in settling of the HDD built into the HDD mounting units is prevented and the influence of the unit body vibration is lessened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device which is mounted as an information storage means and is detachably incorporated into an HDD. The present invention relates to an improvement in positioning performance related to vibration during head positioning of an HDD and an improvement in cooling performance. About.

[0002]

2. Description of the Related Art In an HDD, which is a storage device which is unitized and detachably mounted on an electronic device, a magnetic disk which is a storage medium of the HDD is stacked on a spindle which rotates at regular intervals at the same interval, and is arranged in a radial direction of a rotating shaft. The track is positioned in a cylindrical shape, and is moved to a specified specific track position by a servo head attached to a plurality of data heads and an actuator, and at the same time, magnetic information on a magnetic disk is read / written by the data head.
are doing. Means for increasing the storage capacity of the HDD include increasing the storage density in the track circumferential direction and reducing the adjacent pitch in the track radial direction.

On the other hand, a high-speed rotation of a disk is being promoted in order to shorten a write / read time, that is, an access time. The information recorded on the magnetic disk built in the HDD by magnetic means is read / written by the magnetic head attached to the actuator which is the moving means. After the magnetic head group including the servo head moves to the corresponding cylinder, the information is read / written. The HDD is vibrated by a driving reaction force of an actuator, for example, a voice coil motor, at the time of settling which is positioned at a corresponding track of the disk and intends to stay at that position, and the vibration is transmitted to a fixed housing. Read / Read does not affect adjacent magnetic heads defined by the settling specification due to the influence.
There is a problem that the amplitude does not fall within the rewritable amplitude and an error occurs.

FIG. 19 shows a settling waveform of a servo head position in the prior art, in which time is plotted on the horizontal axis and displacement of the servo head is plotted on the vertical axis. Assuming that the displacement specification of the servo head of the HDD according to the present invention is a μm, it can be seen that the specification actually greatly exceeds the specification and an error occurs.

[0005] In addition, the time for transmitting and receiving information from the HDD largely depends on the access time of the actuator as the moving means and the rotation waiting time of the magnetic disk. Particularly, it is necessary to speed up the rotation time of the magnetic disk. Have been.
In reality, HDDs that rotate at a high speed of 7,200 rpm and 10,000 rpm have been developed. The high-speed rotation involves a large heat generation as a windage loss of the magnetic disk, which causes a deformation related to the thermal expansion of the HDD, and has a problem that the positioning of the magnetic head is adversely affected.

In a disk array device, a plurality of HDD units mounted adjacent to each other are provided.
There is a problem that the vibration of D becomes a disturbance and adversely affects other HDDs. Japanese Patent Publication No. 2933838 describes a mechanism for attaching and detaching a storage device unit to and from a higher-level electronic device, but does not describe the above problem.

[0007]

In order to solve the above-mentioned disadvantages of the prior art, the HDD vibrates due to a driving reaction force of an actuator as a moving means, for example, a voice coil motor during settling, and the vibration is fixed. It is an object of the present invention to provide an HDD mounted unit structure that can be transmitted to a housing and have an amplitude that does not affect an adjacent magnetic head defined by the settling specification due to the influence.

Further, in order to solve the above-mentioned disadvantages of the prior art, a cooling efficiency which does not adversely affect the positioning accuracy of the magnetic head of the HDD related to settling and the positioning of the magnetic head due to heat generation due to high-speed rotation of the disk. It is to provide a HDD mounting unit structure which is good.

Another object of the present invention is to provide an HDD mounted unit structure in which the vibration of each HDD of a plurality of mounted HDD units becomes a disturbance and does not adversely affect other HDDs.

[0010]

As means for solving the above problems, a HDD is built inside a box-shaped, highly rigid connection box, and a guide made of a thermoplastic polymer material is installed outside the HDD. A pedestal is provided at the attachment part to the junction box.
A means for applying a force at one or two places for fixing the unit to the electronic device, and the HDD and the connection box are tightened together to minimize the transmission area of the DD single unit vibration.
Means for applying a plurality of forces in the direction orthogonal to the direction of the wall surface and the second wall surface (forming a convex portion protruding in a bridge shape) is provided, and the guide has a minimum necessary convex surface. By providing a means for reducing the coefficient of friction between the HDD mounting unit in contact with the first wall surface and the second wall surface. Prevents adverse effects during settling of HDDs incorporated in HDD mounted units, and reduces the effects of unit vibration, and does not adversely affect other HDDs as disturbances
A D-mounted unit structure is achieved.

[0011] Further, left and right rails extending outward are provided on the longitudinal sides of the left and right sheet metals of the connection box, which is a component of the HDD unit, and ventilation holes are provided on the front, rear and bottom plates.
Further, by providing a space for ventilation in the direction facing the bottom plate of the box sheet metal on the rear side of the connection box, an HDD mounting unit structure with high cooling efficiency is achieved.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment according to the present invention.
A specific description will be given using 1 to 18.

FIG. 1 is a schematic perspective view of a disk array device which is a magnetic disk unit mounting device according to the present invention, and comprises a main body 1 and a decorative cover 3 having a louver 2. FIG. 2 is a schematic perspective view of the disk array device according to the present invention, in which the decorative cover 3 has been removed from the main unit 1. A plurality of HDD mounting units 8 are enclosed in parallel by being surrounded by 5, a left wall 6, and a right wall 7.

FIG. 3 is a schematic cross section AA of the disk array device according to the present invention, in which a decorative cover 3 having a louver 2 is provided on the front side, and is detachably attached to the main body 1.
The inner space of the main body 1 is surrounded by an upper wall 4, a lower wall 5, a left wall 6, and a right wall 7, and a plurality of connectors 10-1 are provided on the rear side.
Is provided. Upper wall 4 and lower wall 5
Has a first concave guide 15 and a second concave guide 14 at opposing positions, and a third convex guide 13 at a corresponding position.
And a fourth convex guide 16. Third convex guide 13
The fourth convex guide 16 is connected to the fourth convex guide 16 by a front connecting portion 28, and has an integral structure having a front ventilation wall 29 extending from the front connecting portion 28 and the handle 11 on the front side.
Connection box 26 in the space between
Is incorporated.

The HDD 12 incorporating the connector 10-2 is fixedly incorporated inside the connection box 26. HDD1
2 has a cooling structure in which heat is generated during operation, so that outside air is sucked in the direction of arrow 27-1 from the opening of the louver 2 and discharged in the direction of arrow 27-2 from the hole formed in the substrate 9. I have.

FIG. 4 is a schematic cross section AA of the disk array apparatus according to the present invention, excluding the HDD mounting unit of FIG.
On the upper wall surface 4 and the lower wall surface 5, a tape-shaped plastic tape 62 having a thickness of several tens μm and having a thickness including the leaf spring 31 is stuck on the upper wall surface 4 and the lower wall surface 5 so that the HDD mounting unit 8 including the leaf spring 31 smoothly. I can move to. This allows the HDD mounting unit 8 including the leaf spring 31 to move smoothly, so that the leaf spring 31 can follow the driving reaction force 58 applied to the leaf spring 31 as a slight displacement during settling, and settling can be performed smoothly. Is done.

In this embodiment, the plastic tape 62 is made of a film-like polyester, and the back surface thereof is bonded. The leaf spring 31 is made of a thin stainless steel plate.
The convex guide 13 and the fourth convex guide 16 use an ABS resin to reduce the coefficient of friction. However, various combinations that can reduce the coefficient of friction are conceivable. For example, the leaf spring 31
It is also a good method to use spring steel and apply a compatible plastic coating capable of lowering the friction coefficient as well as rust prevention.

FIG. 20 shows a settling waveform of the servo head position according to the present invention, in which the horizontal axis represents time and the vertical axis represents displacement of the servo head. HD according to the present invention
Assuming that the displacement specification of D servo head is a μm,
It can be seen that the specifications are satisfied with a margin.

FIG. 5 is a schematic exploded perspective view of the HDD mounting unit according to the present invention, and FIG. 6 is a partially schematic enlarged view of FIG. 3 according to the present invention. The HDD 12 has a screw hole 30 and a connector 10-2 incorporated therein. Junction box 2
6, a bottom plate 17 having a plurality of bottom openings 36, a front plate 18 having a plurality of front openings 23, a connector escape opening 22 for connecting the connectors 10-2 and 10-1 and a plurality of A left side plate 20 with a hole 39-2 on the front side and a hole 39-1 on the rear side, a right side plate 21 with a hole 39-1 on the front side, and a left side plate 21 with a hole 39-1. It is composed of a left side bar 43-1 extending from the face plate 20 and a right side bar 43-2 extending from the right side plate 21, and has an integrated structure of metal.

Third convex guide 13 and fourth convex guide 16
And a front connecting portion 28 integrated with a front ventilation wall 29 having a plurality of holes 44 on the upper side, and is integrated with a handle 11 provided on the front side with a thermoplastic polymer material, The structure is such that the connection box 26 is sandwiched therebetween. The third convex guide 13 has a counterbore 37, a step concave surface 35-1, a hole 38 in a plane of the step concave surface 35-1, and a pedestal having a convex surface formed inside the counterbore 37 and the hole 38. 34
And relief holes 33-1 above and below between the counterbore holes 37 and 38.
And a bridge-shaped spring 32 formed through the escape hole 33-2.

The fourth convex guide 16 has a counterbore 37
A pedestal 34 having a convex surface formed inside the counterbore 37,
A relief hole 33-1 and a relief hole 33 above and below between the counterbore holes 37
-2, a bridge-shaped spring 32 is formed. Insert the screw 42-2 from the counterbore 37,
Pass through the hole 39-1 and screw into the screw hole 30;
2-1 is an insulating bush 4 made of a thermoplastic polymer material
0, and through the holes 41, 38 and 39-2 of the leaf spring 31 and screwed into the screw holes 30, the assembly of the HDD mounting unit 8 is completed. The bridge-shaped springs 32 generate vibrations from the freely accessible HDDs 12 of the HDD mounted units 8 incorporated in parallel.
2 has the effect of minimizing adverse effects. H
DD12 and main body 1 are directly electrically insulated,
This has the effect of protecting the HDD 12 from the adverse effects of AC noise that is a disturbance.

FIG. 7 is a schematic cross section BB of the disk array device according to the present invention, wherein the upper wall surface 4, the lower wall surface 5, and the HD
The space 46-1 and the space 46-2 sandwiched between the D 12, the first convex guide 13, and the second convex guide 16 are flow paths through which air flows to cool the side surface of the HDD 12.

FIG. 8 is a schematic cross section DD of the disk array device according to the present invention. The HDD 12 incorporates an HDD substrate 48 in which a control circuit, a connector 10-2, and the like are incorporated. It is made. HDD
The cooling of the HDD 12 and the HDD substrate 48 is performed through the hole 44 and the front opening 23.
Flows through the space 45 so as to avoid the connector 10-1, passes through the opening 47 formed in the substrate 9, and passes through arrows 49-1 and 49-2. And merges in the flow path of arrow 49-3 to form a flow path in the order of arrow 49-4 and arrow 49-5. An exhaust unit for exhaust is provided below the arrow 49-5, but is omitted here.

FIG. 9 is a schematic cross section CC of the disk array device according to the present invention.
1 are assembled at a predetermined interval, and a hole 47
Is provided.

FIG. 10 is a schematic three-view drawing of a thermoplastic polymer member in which the guiding means, the attaching / detaching means, and the connecting means according to the present invention are integrated, and a third convex guide 13 serving as the guiding means. Fourth convex guide 16 and handle 11 as attachment / detachment means
And a front connecting portion 28 serving as connecting means.

FIG. 11 is a schematic diagram of a junction box 5 according to the present invention.
FIG. 12 is a schematic perspective view in which the corners of the junction box according to the present invention are firmly fixed by rivet means, and FIG. 13 is a schematic perspective view in which the corners of the junction box according to the present invention are firmly fixed by welding means. FIG. 2 is a perspective view, showing a front plate 1 rising from each side of a bottom plate 17.
8, the respective corners of the rear plate 19, the left side plate 20, and the right side plate 21 have one side plate overlapped with the other side plate and are firmly connected by rivets 50 or spot welding 51, and have high rigidity as a connection box. It has a structure to have. The rivet 50 and the spot welding 51 are one means for securing high rigidity as a connection box. However, if notches (triangular corners or the like) are further added to the respective parts, the rigidity is further increased. Since the rigidity of the connection box 26 can be secured at the corners, the thickness can be reduced,
It also contributes to reducing the mass of the mounted unit.

Also, by minimizing the installation surface of a pedestal 34 for connecting the connection box 26 and the HDD 12, each HDD
It is possible to minimize the transmission area of the single vibration generated from 12.

FIG. 14 is a view for explaining the principle of the HDD in which the actuator for accessing the magnetic head is set at a position opposite to the connection connector, and FIG. 15 is the same as that for the actuator for accessing the magnetic head. It is a principle explanatory view of the HDD set to the position of the direction,
HDDs are classified into these two types depending on the manufacturer.

A positioning method for reading / writing the magnetic information of the magnetic disk 54 with the magnetic head 55 will be described with reference to the configuration of FIG.

The magnetic head 55 comprises a voice coil actuator movable section 53 at a position facing a rotary shaft 56 via a carriage 60 and a voice coil actuator fixing section 52 for moving the carriage 60 to a designated position on the magnetic disk 54. The magnetic head 55 is positioned on a predetermined track by applying an actuator thrust 57 by servo control to a designated track of the magnetic disk 54 in the direction of the arrow 59 by acceleration control and deceleration control. 55 always vibrates in the plus / minus direction within a range of several tenths of μm, so that the magnetic information of the adjacent track is not read / written and the magnetic information of the correct track is read / write. Decided to have no adverse effects.

It is generally known that the HDD 12 is rigidly fixed to a member having a predetermined large mass and high rigidity. In the present invention, the driving reaction force 58 is constantly acting in the direction opposed to the actuator thrust 57, and the HDD mounting unit 8 is displaced. 58
By always applying a larger external force 61, movement to an adjacent track is prevented and correct information can be read / written.

FIG. 16 is a view for explaining the principle of applying an external force to the HDD unit according to the present invention.
5 is a method of assembling the HDD having a different structure without changing the configuration of the HDD unit. By simultaneously applying the external force 61-1 and the external force 61-2, the position of the head during settling can be maintained.

FIG. 17 is a schematic three-view drawing of another thermoplastic polymer member in which the guide means, the attaching / detaching means and the connecting means according to the present invention are integrated, and the first convex guide as the guide means. 1
3 and the second convex guide 16 and the handle 1 as the attaching / detaching means
1 and a front connecting portion 28 as connecting means are integrated. The first convex guide 13 and the second convex guide 16 are connected to a front connecting portion 28 integrated with a front ventilation wall 29 having a plurality of holes 44 on an upper side, and a handle provided on a front side. 11 together with a thermoplastic polymer material, and has a structure that sandwiches the connection box 26. The first convex guide 13 has a stepped concave surface 35-1, a stepped concave surface 35-2, a hole 38 in the plane of the stepped concave surface 35-1, and the stepped concave surface 35-2, and a convex surface inside the hole 38. Pedestal 3 forming
4 and a bridge-shaped spring 32 formed through the relief hole 33-1 and the relief hole 33-2 above and below between the front and rear holes 38. The screw 42-1 is passed through the insulating bush 40 made of a thermoplastic polymer material, and the hole 41 of the leaf spring 31 is inserted.
Through the holes 38 and 39-2 and screwed into the screw holes 30.

The second convex guide 16 has a counterbore 37
A pedestal 34 having a convex surface formed inside the counterbore 37,
A relief hole 33-1 and a relief hole 33 above and below between the counterbore holes 37
-2, a bridge-shaped spring 32 is formed. Assembly is similar to that described in FIG.

FIG. 18 is a schematic five-view drawing of another connection box according to the present invention. Holes 39-2 for attaching a leaf spring 31 are formed before and after the left side plate 20. This is because the connection box 2 when the leaf spring 31 shown in FIG.
6 is to be incorporated. The front plate 18 has a rear plate 19
Hole 23-3 identical to connector escape opening 22 drilled
And a rear opening 22-2 identical to the rear opening 24-1. This is implemented as a means for increasing the opening area and for sharing a sheet metal die, and is important for cost reduction in small-quantity production. Others are the same as the description of FIG.

[0036]

According to the present invention, a HD is provided inside a box-shaped, highly rigid connection box.
D, a guide is installed on the outside thereof, a pedestal is provided at a mounting portion with the connection box, the transmission area of the HDD unit vibration is minimized, and one unit for fixing this unit to the electronic device is provided. Or two places, built into the HDD,
Means for applying a force to a position substantially the same as the thrust point of the actuator that drives the magnetic head via the carriage is provided,
A means for fastening the HDD and the connection box together and applying a plurality of forces in a direction orthogonal to the directions of the first wall surface and the second wall surface is provided. By connecting the connection box and the HDD, during settling of the magnetic head, there is no influence of the adjacent track and
There is an effect that it is possible to reduce the adverse effect of the DD single vibration as a disturbance on other HDDs.

Further, left and right rails extending outward are provided on the longitudinal sides of the left and right sheet metals of the box sheet metal, ventilation holes are provided in the front, rear and bottom plates, and the rear side of the box sheet metal is provided. However, by providing a space for ventilation in a direction facing the bottom plate of the box metal plate, there is an effect that it is possible to provide an HDD mounting unit having high cooling efficiency.

Further, left and right rails extending outward are provided on the longitudinal sides of the left and right metal plates of the connection box, which are components of the HDD unit, and ventilation holes are provided on the front, rear and bottom plates.
In addition, by providing a space for ventilation in the direction opposite to the bottom plate of the connection box on the rear side of the connection box, H with high cooling efficiency is provided.
There is an effect that a DD mounting unit can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a disk array device which is a magnetic disk unit mounting device according to the present invention.

FIG. 2 is a schematic perspective view of the disk array device according to the present invention with the main body decorative cover removed.

FIG. 3 is a schematic sectional view taken along the line AA of the disk array device according to the present invention.

4 is a schematic cross-sectional view of the disk array device excluding the HDD unit of FIG. 3 according to the present invention, taken along a line AA.

FIG. 5 is a schematic exploded perspective view of the HDD mounting unit according to the present invention.

6 is a partially schematic enlarged view of FIG. 3 according to the present invention.

FIG. 7 is a schematic sectional view taken along the line BB of the disk array device according to the present invention.

FIG. 8 is a schematic sectional view taken along line DD of the disk array device according to the present invention.

FIG. 9 is a schematic sectional view taken along the line CC of the disk array device according to the present invention.

FIG. 10 is a schematic three-view drawing of a thermoplastic polymer member in which the guide means, the attaching / detaching means, and the connecting means according to the present invention are integrated.

FIG. 11 is a schematic five-side view of the junction box according to the present invention.

FIG. 12 is a schematic perspective view in which corners of a connection box according to the present invention are firmly fixed by rivet means.

FIG. 13 is a schematic perspective view in which corners of a connection box according to the present invention are firmly fixed by welding means.

FIG. 14 is a principle explanatory view of an HDD in which an actuator for accessing a magnetic head is set at a position opposed to a connection connector.

FIG. 15 is a principle explanatory view of an HDD in which an actuator for accessing a magnetic head is set at a position in the same direction as a connector for connection.

FIG. 16 is a principle explanatory view of applying an external force to the HDD unit according to the present invention.

FIG. 17 is a schematic three-view drawing of another thermoplastic polymer member in which the guiding means, the attaching / detaching means, and the connecting means according to the present invention are integrated.

FIG. 18 is a schematic five-side view of another connection box according to the present invention.

FIG. 19 is a settling waveform of a servo head position in the related art.

FIG. 20 is a settling waveform of a servo head position according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Body part, 2 ... Louver, 3 ... Decorative cover, 4 ... Upper wall surface, 5 ... Lower wall surface, 6 ... Left wall surface, 7 ... Right wall surface, 8 ... HDD
Mounting unit, 9 ... board, 10-1 ... connector, 10-
2 ... Connector, 11 ... Handle, 12 ... HDD, 13 ...
1st convex guide, 14 ... 4th concave guide, 15 ... 1st concave guide, 16 ... 3rd convex guide, 17 ... bottom plate, 18 ...
Front plate, 19: Rear plate, 20: Left side plate, 21: Right side plate, 22: Connector escape opening, 23-1: Front opening, 2
3-2: Front opening, 23-3: Front opening, 24: Rear opening, 25-1: Corner, 25-2: Corner, 25-3: Corner, 2
5-4: Corner, 26: Connection box, 27-1: Arrow, 27-2
... arrows, 28 ... front connection part, 29 ... front ventilation wall, 30 ...
Screw holes, 31: leaf spring, 32: bridge-shaped spring, 33
-1: relief hole, 33-2: relief hole, 34: pedestal, 35-
Reference numeral 1 denotes a step concave surface, 35-2 denotes a step concave surface, and 36 denotes a bottom opening.
37 ... counterbore hole, 38 ... hole, 39-1 ... hole, 39-2 ...
Hole 39-2 Hole 40 Insulated bush 41 Hole 4
2-1: Screw, 42-2: Screw, 43-1: Left rail, 4
3-2: right side bar, 44: hole, 45: space, 46-1: space, 46-2: space, 47: opening, 48: HDD board,
49-1 to 49-5: arrow, 50: rivet, 51: spot welding, 52: voice coil actuator fixing part, 53: voice coil actuator movable part, 54
... magnetic disk, 55 ... magnetic head, 56 ... rotating shaft,
57 ... actuator thrust, 58 ... drive reaction force, 59 ...
Arrow, 60 ... Carriage, 61-1 ... External force, 61-2 ...
External force, 62 ... plastic tape,

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Kazushi Sasaki 2880 Kozu, Odawara City, Kanagawa Prefecture Inside Hitachi Computer Equipment Co., Ltd. (72) Shunsuke Kojima 2880 Kozu, Kozu, Odawara City, Kanagawa Prefecture Inside Hitachi Computer Equipment Corporation (72) Inventor Shingo Itagaki 2880 Kozu, Odawara City, Kanagawa Prefecture Inside Hitachi Computer Equipment Co., Ltd. (72) Inventor Kenji Gun 2880 Kokutsu, Odawara City, Kanagawa Prefecture Inside Hitachi Computer Equipment Co., Ltd. 2880 Kozu, Odawara City, Hitachi Inside Hitachi Computer Equipment Co., Ltd.

Claims (12)

[Claims] A right wall surface facing the left wall surface, an upper wall surface and a lower wall surface facing the wall surface at right angles, and having a substantially rectangular shape; A body provided with a first guide and a second guide having a concave or convex shape extending in the front-rear direction on the opposed wall surface, a concave shape extending in the front-rear direction with the electrical connection means, Or, a third guide, a fourth guide, and a hard disk having a convex shape.
In an electronic apparatus comprising a drive (hereinafter abbreviated as HDD) and comprising an HDD-mounted unit detachable in a front-rear direction of the main body, the third guide of the HDD-mounted unit and the fourth The guide has a front plate, a rear plate, a left side plate, and a right side plate extending in the direction of the HDD from four sides of a bottom plate having a bottom surface on the opposite wall surface of the HDD, and is a generally box-shaped connecting box made of a metal material. A third guide and a fourth guide made of a thermoplastic polymer member having a concave or convex shape extending in the front-rear direction so as to sandwich the left side plate and the right side plate. HDD mounting unit structure. 2. The HDD mounting unit structure according to claim 1, wherein a pedestal having a convex flat surface is provided inside said third guide and said fourth guide. The HDD mounting unit structure, wherein the HDD mounting unit structure is incorporated by a fixing means together with the connection box in contact with the flat surface of the HDD. 3. The HDD mounting unit structure according to claim 1, wherein one of the first guide, the second guide, the third guide, and the fourth guide is provided. H is provided with a means for applying a force in one or two opposing guide directions.
DD mounting unit structure. 4. The HDD mounting unit structure according to claim 3, wherein the resultant point of the force applied by the means for applying a force in the direction of the one or two opposing guides is built in the HDD and a magnetic head. Characterized in that the thrust position of an actuator for driving the HDD via a carriage is substantially the same as the thrust position. 5. The HDD mounting unit structure according to claim 4, wherein the resonance frequency of the means for applying a force in the direction of the one or two opposing guides is a drive frequency of the actuator,
And a HDD mounted unit structure which is built in the HDD and has a low frequency which does not affect the frequency of a rotating means for rotating the magnetic disk. 6. The HDD mounting unit structure according to claim 3, wherein the means for applying a force in the direction of the guide opposing the one or two places, and the means opposing the third guide in contact therewith. H wherein a means for reducing the coefficient of friction is applied to the fourth guide.
DD mounting unit structure. 7. The HDD mounting unit structure according to claim 1, wherein the first guide and the second guide, or the third guide and the fourth guide are provided with the first guide. An HDD mounting unit structure, comprising: means for applying a force in a direction perpendicular to a direction in which a wall surface and the second wall surface face each other. 8. The HDD mounting unit structure according to claim 7, wherein a plurality of projecting portions projecting in a bridge shape are formed on a surface facing the third guide and the fourth guide. An HDD mounted unit structure, characterized in that it is a means for applying force. 9. The HDD mounting unit structure according to claim 4, wherein the means for applying the force has no direct electrical connection with the HDD. 10. The HDD mounting unit structure according to claim 1, wherein the front plate, the rear plate, the right side plate, and the left side plate extending from four sides of the bottom surface of the connection box toward the HDD. Characterized in that each corner is provided with a connection box firmly connected and fixed. 11. A right wall surface facing the left wall surface, an upper wall surface and a lower wall surface facing the wall surface at right angles, and have a substantially rectangular shape, and are provided with a plurality of electrical connection means and a plurality of holes in the rearward direction. A body provided with a first guide and a second guide having a concave or convex shape extending in the front-rear direction on the opposed wall surface, a concave shape extending in the front-rear direction with the electrical connection means, Or, a third guide, a fourth guide, and a hard disk having a convex shape.
An electronic device comprising a drive (hereinafter abbreviated as HDD) and comprising an HDD-mounted unit detachable in the front-rear direction of the main body, wherein the third guide of the HDD-mounted unit and the fourth The guide has a front plate, a rear plate, a left side plate, and a right side plate extending in the direction of the HDD from four sides of a bottom plate having a bottom surface on opposite wall surfaces of the HDD, and the upper and lower sides of the left side plate and the right side plate. A left-hand rail and a right-hand rail extending outwardly from the side in the direction, and the bottom plate is provided with a plurality of front openings, and the front plate is provided with the HDD.
An opening through which the attaching / detaching means of the mounting unit can pass, and a plurality of front openings; an opening through which the attaching / detaching means of the HDD mounting unit can pass, a plurality of rear openings, and the HD;
D is provided on the rear side and has an interval to be drawn out in a direction opposite to the bottom plate, is substantially box-shaped, includes a connection box made of a metal material, and is disposed in the front-rear direction so as to sandwich the left side plate and the right side plate. And a third guide and a fourth guide formed of a thermoplastic polymer member having a concave shape or a convex shape extending to the HDD. 12. The HDD mounting unit structure according to claim 11, wherein said front panel, said rear panel, said right panel, and said left panel extending from four sides of said bottom surface of said connection box in said HDD direction. The HDD mounting unit structure, wherein each corner is provided with a connecting member firmly fixed.