JP2002093139A - Fixation structure for disk driving device and electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a fixation structure for a disk driving device which can securely cut off vibration transmission from the disk driving device to a frame, enables silent operation, and facilitates the attachment and detachment of the disk driving device. SOLUTION: The fixation structure for the disk driving device is equipped with the hard disk driving device 18 which vibrates during its operation, a metallic frame 4 which supports the hard disk driving device, and a holder 35 made of a foamed body of synthetic resin. The holder is fixed by being fitted in a frame and held by surrounding at least part of the hard disk driving device so that it can be detached.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing structure for fixing a hard disk drive to a metal frame, for example, and an electronic device such as a personal computer incorporating the hard disk drive.

[0002]

2. Description of the Related Art A desktop personal computer has a computer main body which is placed on a mounting surface such as a tabletop of a desk. The computer main body has a rectangular box-shaped housing, in which main components such as a system board on which a CPU is mounted, a power supply unit, and a hard disk drive are housed.

[0003] The housing of the computer main body includes a sheet metal frame covered with a top cover. Main components such as a hard disk drive are held by a sheet metal bracket, and the bracket is screwed to the frame to be supported by the frame.

In a hard disk drive, a plurality of magnetic disks are rotated at a high speed by a spindle motor, so that the vibration accompanying the rotation of the magnetic disks cannot be avoided. For this reason, in the conventional configuration in which the hard disk drive is screwed to the frame via the sheet metal bracket, the vibration accompanying the rotation of the magnetic disk is transmitted to the frame via the bracket, and these brackets and the frame resonate. There is a problem of generating unpleasant noise.

As a countermeasure against this, conventionally, a hard disk drive is surrounded by a cover made of a synthetic resin, or, as shown in Japanese Patent Application Laid-Open No. 10-144066, a hard disk drive is formed into a molded product made of a synthetic resin. There is known an apparatus in which the molded product is attached to a frame and fixed.

[0006]

If the hard disk drive is surrounded by a cover made of synthetic resin, the vibration noise generated by the hard disk drive can be confined inside the cover, which is advantageous in terms of noise reduction. Configuration.

However, although the cover made of a synthetic resin surrounding the hard disk drive has an excellent function of absorbing vibration in comparison with a sheet metal material, this kind of cover is fixed directly to the frame via screws. Therefore, vibrations that could not be absorbed by the cover can be easily transmitted to the frame via the screws.

As a result, the frame may resonate due to the vibration of the hard disk drive, and there is still room for improvement in suppressing noise caused by the resonance of the frame.

According to the prior art disclosed in the above publication, the resin molded product interposed between the hard disk drive and the frame has elasticity. The shock applied to the hard disk drive and the vibration of the hard disk drive can be absorbed.

However, since the resin molded product is a substitute for a sheet metal bracket, it is difficult to say that the resin molded product has a sufficient thickness. Therefore, the vibration absorption performance of the resin molded product is limited. For this reason, the vibration of the hard disk drive may be transmitted to the frame as it is without being completely absorbed by the resin molded product, and there is a problem that noise due to the resonance of the frame cannot be reduced efficiently.

The present invention has been made in view of such circumstances, and it is possible to reliably shut off the transmission of vibration from the disk drive to the frame, to achieve a quiet operation, and to improve the performance of the disk drive. An object of the present invention is to provide a fixing structure for a disk drive device and an electronic device that can easily perform a detaching operation.

[0012]

According to a first aspect of the present invention, there is provided a disk drive fixing structure including a holder made of a synthetic resin foam, the holder being made of a metal. And is fixed by being fitted into the frame of the above, and at least a part of the disk drive device serving as a vibration source is held so as to be removably surrounded.

An electronic apparatus according to an eleventh aspect of the present invention includes a housing having a metal frame, a disk drive device housed in the housing, which vibrates during operation, and a foam made of synthetic resin. A holder made of a body. The holder is fixed by being fitted into the frame, and holds at least a part of the disk drive device so as to removably surround the disk drive device.

According to such a configuration, the foam-molded holder is a porous material having a myriad of air bubbles in a resin material, and is particularly excellent in vibration and shock absorption. It can be absorbed efficiently. Therefore, transmission of vibration from the disk drive device to the frame can be reliably blocked, and resonance of the frame can be suppressed.

Further, the disk drive can be taken out from the holder while leaving the holder in the frame, so that there is no need to remove the holder from the frame when replacing or adding a disk drive. At the same time, since the holder is fixed simply by being fitted into the frame, there is no need to screw the holder to the frame, and an excessive force that may cause damage to the holder is not applied.

Therefore, despite the use of the foam as the holder for holding the disk drive, no trouble is required in handling the holder, and the work of attaching and detaching the disk drive can be easily performed.

According to a tenth aspect of the present invention, in order to achieve the above object, a holder made of a synthetic resin foam is fixed by being fitted into a metal frame. It comprises a lower holder and an upper holder removably superimposed on the lower holder, wherein the lower holder and the upper holder cooperate with each other to surround a housing of the disk drive which vibrates during operation.

According to such a configuration, since the disk drive is covered by the holder, the vibration noise generated by the disk drive itself can be confined inside the holder, and the sound around the disk drive can be transmitted. Diffusion can be prevented.

Therefore, in addition to the fact that the transmission of vibration from the disk drive to the frame is blocked by the holder, the noise associated with the operation of the disk drive can be further reduced.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. 1 to 9 which are applied to a desktop personal computer.

FIG. 1 discloses a desktop personal computer 1. Personal computer 1
Is provided with a computer main body 2 placed on a horizontal mounting surface such as a desk top plate.

As shown in FIG. 2, a housing 3 which is an outer shell of the computer main body 2 includes a frame 4 and a cover 5 for accommodating the frame 4 in a removable manner. The frame 4 is made of a steel plate subjected to a sheet metal press working. This frame 4 has a flat rectangular bottom plate 7,
A pair of side plates 8a, 8b extending upward from both left and right side edges of the bottom plate 7, a front plate 9 extending upward from the front edge of the bottom plate 7, and a rear plate 10 extending upward from the rear edge of the bottom plate 7 are integrally formed. Have. Side plates 8a, 8b, front plate 9 and rear plate 1
Numerals 0 are connected to each other by spot welding and function as upright plates rising from the peripheral edge of the bottom plate 7.

As shown in FIG. 2, the frame 4 has a mounting area 13 on its bottom plate 7 surrounded by side plates 8a and 8b, a front plate 9 and a rear plate 10. This mounting area 13
Contains a control circuit module 14, a power supply unit 15, a floppy (registered trademark) disk drive 16, a CD-ROM drive 17 as a functional component, and a hard disk drive 18.

The control circuit module 14 includes the mounting area 13
Is located in the latter half. Control circuit module 14
Includes a circuit board 20 as a system board, and a number of circuit components 21 mounted on the circuit board 20. The circuit board 20 is screwed onto the bottom plate 7 of the frame 4 and is horizontally arranged along the bottom plate 7.

The power supply unit 15 and the floppy disk drive 16 are vertically stacked at the right end of the first half of the mounting area 13. The CD-ROM drive device 17 and the hard disk drive device 18 are vertically stacked at the left end of the first half of the mounting area 13. The power supply unit 15, the floppy disk drive 16, the CD-ROM drive 17, and the hard disk drive 18 are electrically connected to a circuit board 20 via a cable 22, respectively.

A heat sink 24 thermally connected to the CPU and a cooling unit 25 for forcibly cooling the heat sink 24 are arranged on the circuit board 20. The cooling unit 25 has an exhaust duct 27 in which an electric fan 26 is built. Exhaust duct 27
The suction end faces the upper surface of the heat sink 24 and the exhaust end is connected to an exhaust port (not shown) opened in the rear plate 10 of the frame 4.

Therefore, when the electric fan 26 is driven as the temperature of the CPU rises, the air inside the housing 3 is exhausted to the outside of the housing 3 through the exhaust duct 27, and
A flow of air (cooling air) toward the suction end of the exhaust duct 27 is formed in the inside.

A decorative panel 28 is screwed to the front end of the frame 4. The decorative panel 28 extends along the width direction of the frame 4 and covers the front plate 9 of the frame 4 from the front. The decorative panel 28 has a first disk insertion port 29 connected to the floppy disk drive 16 and a second disk insertion port 30 connected to the CD-ROM drive 17.

On the other hand, the cover 5 is made of a steel plate subjected to a sheet metal press working. The cover 5 is attached to the frame 4
The cover 5 has an opening 31 at the front end of the cover 5 for inserting and removing the frame 4. Further, the cover 5 has a horizontal top plate 32, and an article such as a CRT display device 33 can be placed on the top plate 32.

As shown in FIGS. 3 to 5, the hard disk drive 18 is fixed to the frame 4 via a holder 35 as a vibration damping material. Hereinafter, a fixing structure of the hard disk drive 18 will be described. .

The hard disk drive 18 has a flat box-shaped metal housing 36. Housing 3
6 is a base plate 37 and the base plate 37
A plurality of magnetic disks, a spindle motor for rotating and driving the magnetic disks, and a magnetic head are provided in a clean room, which is constituted by a top cover 38 which is hermetically mounted on the Various components such as a carriage and a voice coil motor for driving the carriage are housed therein.

As best shown in FIGS. 7 and 9, a control board 39 is disposed at the bottom of the base plate 37 opposite to the top cover 38. The control board 39 is screwed to the bottom surface of the base plate 37 and is exposed outside the housing 36. The control board 39 is electrically connected to the magnetic head, the spindle motor, and the voice coil motor. A connector 40 for connecting the cable 22 is mounted on one end of the control board 39.

Various circuit components (not shown) are mounted on the control board 39. These circuit components include components that generate heat during operation. For this reason,
The control board 39 generates heat by heat conduction from the heat-generating components.

The base plate 37 of the hard disk drive 18 has left and right side surfaces 42a, 42b standing vertically.
have. A pair of synthetic resin guides 43 is disposed on each of the side surfaces 42a and 42b. The guides 43 have a cylindrical shape with one end opened, and are arranged apart from each other in the longitudinal direction of the hard disk drive 18.

As shown in FIG. 8B, the guide 43
Has a screw insertion hole 44 inside thereof, and a metal screw 45 is inserted into the screw insertion hole 44 from the side of the base plate 37.
Is inserted. The insertion end of the screw 45 is connected to a screw hole 46 opened on the side surface 42a, 42b of the base plate 37.
The guide 43 is fixed to the base plate 37 by this. The head 45 a of the screw 45 is located at the side opening end of the guide 43.

Such a hard disk drive 18
However, since a plurality of magnetic disks are rotated at a high speed via a spindle motor, it is inevitable that vibrations accompanying the rotation of the magnetic disks occur during operation. Therefore, the holder 35 for supporting the hard disk drive device 18 in anti-vibration is a rigid foam made of a plastic having countless fine cell structures, specifically, a polypropylene material.
E-pack (trade name: Sirod Corporation) is used. This E-pack is known to be particularly excellent in electrical insulation, vibration / shock absorption, and chemical resistance.

As shown in FIG. 5, the holder 35 is accommodated in the front end corner of the mounting area 13 defined by the bottom plate 7, the left side plate 8a and the front plate 9 of the frame 4. The holder 35 has a flat base portion 50 placed on the bottom plate 7.
And a pair of side wall portions 51a and 51b protruding upward from left and right side edges of the base portion 50. The thickness of the base portion 50 and the side wall portions 51a and 51b is
It is set to at least 10 mm or more in order to secure desired vibration isolation.

The base 50 has substantially the same size as the housing 36 of the hard disk drive 18. The side wall portions 51a and 51b form a recess 53 that is opened upward on the base portion 50. The recess 53 has a size such that the base plate 37 of the housing 36 is detachably fitted. Therefore, the side surfaces 42 a and 42 b of the base plate 37 are in contact with the side wall portions 51 a and 51 b of the holder 35.

The side walls 51a and 51b have a pair of recesses 55a and 55b, respectively. The recesses 55a and 55b are
The guides 43 of the hard disk drive 18 are removably inserted into the recesses 55a and 55b so as to be removable from above.

As shown in FIG. 6 to FIG.
Is placed on the bottom plate 7 with its front end face abutting against the front plate 9 and its left side face abutting against the side plate 8a. The bottom plate 7 has a first bent right angled upward.
And second support pieces 56a and 56b. First
The supporting piece 56a abuts against the rear end face of the base portion 50, and sandwiches the base portion 50 between the supporting piece 56a and the front plate 9 of the frame 4. The second support piece 56b abuts on the right side surface of the base portion 50, and sandwiches the base portion 50 with the side plate 8a of the frame 4.

Therefore, the holder 35 is installed on the bottom plate 7 of the frame 4 in a state where the movement of the frame 4 in the width direction and the depth direction is restricted by the presence of the first and second support pieces 56a and 56b. Have been.

The side plate 8a of the frame 4 is provided with the third support piece 5 which is folded horizontally toward the inside of the mounting area 13.
6c. The third support piece 56c is
a, 55b, the left side wall 51 of the holder 35
a, the holder 35 is pressed against the bottom plate 7.

Therefore, the holder 35 is immovably fixed to the frame 4 by being fitted inside the frame 4.

As shown in FIG. 5, the hard disk drive 18 has the guide 43 of the base plate 37
The holder 35 is fitted in the recess 53 of the holder 35 while being aligned with the positions a and 55b. At this time, the base plate 37
Of the hard disk drive 18 in the depth direction of the frame 4 by fitting the guide 43 with the concave portions 55a and 55b.
The hard disk drive 18 is positioned in the width direction of the frame 4 by the contact between the side surfaces 42a, 42b of the base plate 37 and the side walls 51a, 51b.

Accordingly, the holder 35 holds the base plate 37 of the hard disk drive 18 so as to surround it, and the top cover 38 that covers the base plate 37 projects above the holder 35.

As shown in FIGS. 4 and 6, the base portion 50 of the holder 35 has a groove-shaped recess 58 on the upper surface facing the recess 53.
have. The recessed portion 58 extends along the depth direction of the frame 4 between the side wall portions 51a and 51b. The recess 58 faces the control board 39 of the hard disk drive 18 and
, A cooling air passage 59 is formed.

The cooling air passage 59 extends in the depth direction of the frame 4, and has a front end connected to a plurality of suction ports 60 opened in the front plate 9 of the frame 4, and a rear end opened to the mounting area 13. I have. For this reason, when the air in the mounting area 13 is sucked in with the operation of the electric fan 26, the air outside the housing 3 becomes the cooling air from the suction port 60 as shown by the arrow in FIG. The cooling air is sucked into the cooling air 59 and flows backward through the cooling air passage 59.

Therefore, the control board 39 which generates heat is efficiently cooled by being in direct contact with the cooling air flowing through the cooling air passage 59, and the control board 39 has good heat dissipation despite the fact that the control board 39 is surrounded by the holder 35. Well maintained.

As shown in FIGS. 5 and 7, when the hard disk drive 18 is mounted on the holder 35, the top of the outer peripheral surface of the guide 43 projects slightly above the upper surfaces of the side walls 51a and 51b. The top 45a of the screw 45 for fixing the guide 43 to the base plate 37 is exposed to the left and right sides of the holder 35 through the recesses 55a and 55b.

The guide 43 on the left side of the base plate 37
Is adjacent to the side plate 8a of the frame 4. In the side plate 8a, a contact piece 62 projecting toward the base plate 37 is cut and raised. The contact piece 62 is connected to the frame 4
Is elastically displaceable in the width direction of the base plate 37 and faces one of the guides 43 on the left side of the base plate 37. The tip of the contact piece 62 elastically contacts the head 45a of the screw 45 located at the open end of the guide 43, as shown in FIG. 8B.

For this reason, the frame 4 is electrically connected to the housing 36 of the hard disk drive 18 via the screw 45, and the hard disk drive 18 is charged with static electricity by friction caused by contact with the cooling air. This static electricity can be released to the frame 4.

Since the contact piece 62 has elasticity, the vibration caused by the operation of the hard disk drive 18 is generated by the screw 45.
Is transmitted to the contact piece 62 from the
Absorbs vibration by elastically displacing. for that reason,
It becomes difficult for the vibration of the hard disk drive 18 to be transmitted to the frame 4.

The hard disk drive 18 fitted in the holder 35 is retained in the recess 53 of the holder 35 using the CD-ROM drive 17 so as to prevent the hard disk drive 18 from coming off. 4 and 9
As shown in FIG. 2, the CD-ROM drive device 17 has a flat case 66 having a tray 65 which can be pulled out. A bracket 67 made of sheet metal is attached to the case 66. The bracket 67 is mounted on the horizontal top plate 6.
8 and first and second support plates 69a and 69b extending downward from left and right side edges of the top plate 68.

The top plate 68 of the bracket 67 is
And the front edge thereof abuts against the front plate 9 of the frame 4. The first support plate 69a of the bracket 67 is located between the holder 35 and the power supply unit 15. The front edge of the first support plate 69a abuts against the front plate 9 of the frame 4, and the lower end of the first support plate 69a has a first flange portion superposed on the bottom plate 7 of the frame 4. 70 (shown in FIG. 8A). The first flange portion 70 is slidably sandwiched between the bottom plate 7 and a tongue piece 71 cut and raised upward from the bottom plate 7. Also, the first support plate 69
Has a pressing piece 72 bent inward at a right angle,
The pressing piece 72 faces the upper surface of the right side wall 51 b of the holder 35.

As shown in FIG. 7, the second
Is slidably superimposed on the upper portion of the side plate 8a of the frame 4. A second flange portion 73 is formed at the lower edge of the second support plate 69b so as to be bent inward at a right angle. The second flange portion 73 is slidably overlapped with the third support piece 56c of the side plate 8a, and both ends of the second flange portion 73 are located forward and rearward of the third support piece 56c. It is overhanging.

At the upper edge of the front end of the side plate 8a, there is formed a guide piece 75 bent inward at a right angle. The guide piece 75 faces the third support piece 56c of the side plate 8a, and the guide piece 75 and the third support piece 5
6c, the second support plate 69b of the bracket 67 is inserted.

For this reason, the bracket 67 is attached to the frame 4
Is detachably fitted into the frame 4 in a state where the movement in the width direction, the height direction, and the forward direction is restricted, so that the CD-ROM drive device 17 is moved above the hard disk drive device 18 by the frame. 4 is fixed.

As shown in FIG. 7 and FIG.
Is fixed to the frame 4, both ends of the second flange portion 73 come into contact with the outer peripheral surface of the left guide 43 of the hard disk drive 18 from above, and this guide 43 is brought into contact with the concave portions 55 a and 55 b of the holder 35. I'm holding it down. Similarly, the pressing piece 7 of the first support plate 69a of the bracket 67
2 comes into contact with the outer peripheral surface of the right guide 43 of the hard disk drive 18 from above, and this guide 43 is
In the recesses 55a and 55b.

For this reason, the bracket 67 supporting the CD-ROM drive device 17 also has a function as a holding means for pressing the hard disk drive device 18 into the recess 53 of the holder 35. The flange portion 73 and the pressing piece 72 constitute a pressing portion of the holding means.

As shown in FIG. 9, when the bracket 67 is fixed to the frame 4, the front end of the CD-ROM drive device 17 projects forward through the front plate 9. A folded portion 76 is formed at the upper edge of the front plate 9 at a right angle toward the rear. The folded portion 76
The folded portion 76 extends in the width direction of the frame 4.
Has a pair of engagement holes 77 at the left end.

The front end of the top plate 68 of the bracket 67 enters under the folded portion 76. A metal lock piece 78 having a spring property is attached to the upper surface of the front end of the top plate 68. The lock piece 78 has a pair of engagement projections 79 protruding upward. This lock piece 78
The engagement hole 7
7, so that the bracket 67 is locked to the frame 4 so that it cannot be removed.

To incorporate the hard disk drive 18 into the mounting area 13 of the frame 4 in the personal computer 1 having such a configuration, first, the bottom plate 7, the left side plate 8a, and the front plate 9 of the frame 4 are defined. The holder 35 is fitted into the front end corner of the mounting area 13.

Subsequently, the base plate 37 of the hard disk drive 18 is dropped into the recess 53 of the holder 35, and the side surfaces 42a,
The guide 43 of 42b is connected to the side walls 51a, 51 of the holder 35.
b is fitted into the concave portions 55a and 55b. Thus, the hard disk drive 18 is held by the holder 35 in a state where the movement of the frame 4 in the depth direction and the width direction is restricted.

Next, the bracket 67 integrated with the CD-ROM drive 17 is inserted into the mounting area 13 from above the hard disk drive 18, and the first flange 70 at the lower end of the first support plate 69a is attached. The second flange portion 73 at the lower end of the second support plate 69b is overlapped on the third support piece 56c of the side plate 8a while being overlapped on the bottom plate 7.

In this state, the bracket 67 is slid forward, and the front edges of the first support plate 69a and the top plate 68 abut against the front plate 9. Thereby, the first flange portion 70
Is sandwiched between the bottom plate 7 and the tongue piece 71, and the second support plate 69b is connected to the third support piece 56c and the guide piece 75.
Is sandwiched between. Therefore, the bracket 67
The frame 4 is fitted inside the frame 4 with the movement in the width direction, the depth direction, and the height direction restricted.

When the bracket 67 is slid forward, the locking piece 78 on the upper surface of the top plate 68 enters below the folded portion 76 of the frame 4, and the tip of the engaging projection 79 can slide on the lower surface of the folded portion 76. Contact. Engaging projection 7
When the front edges of the top plate 68 and the first support plate 69a abut against the front plate 9, the hook 9 is elastically hooked into the engagement hole 77 and locks the bracket 67 to the frame 4.

When the bracket 67 is locked to the frame 4, as shown in FIG.
The front and rear ends of the pressing piece 72 and the second flange 73 contact the guide 43 of the hard disk drive 18,
These guides 43 are pressed into the concave portions 55a and 55b of the holder 35.

Therefore, the hard disk drive 18
A series of hard disk drives 18 and CD-ROMs are retained by
The installation work of the driving device 17 is completed.

The hard disk drive 18 is mounted on the frame 4
In order to take out the lock projections 78 from the top plate 68, the lock pieces 78 are pressed downward with a fingertip, and the lock pieces 78 are elastically deformed to disengage the engagement projections 79 from the engagement holes 77.

Next, the bracket 67 is slid toward the rear of the frame 4 so that the first flange 70 is
And the second support plate 69b is pulled out from between the third support piece 56c and the guide piece 75. Thus, the engagement between the bracket 67 and the frame 4 is released, and the bracket 67 is taken out of the frame 4 together with the CD-ROM drive device 17.

When the CD-ROM drive 17 is removed, the pushing of the hard disk drive 18 by the bracket 76 is released, and the housing 36 of the hard disk drive 18 is exposed to the mounting area 13. Therefore, the hard disk drive 18 can be taken out of the holder 35 by grasping and pulling up the housing 36 with a fingertip.

According to such a personal computer 1, the hard disk drive 18 which vibrates during operation
Is made of a rigid foam having a myriad of fine cell structures, and is particularly excellent in vibration and shock absorption. Therefore, the hard disk drive 1
8 can be efficiently absorbed, and the transmission of vibration from the hard disk drive 18 to the frame 4 can be reliably shut off. Therefore, the sheet metal frame 4
Is suppressed, noise due to the resonance of the frame 4 is reduced, and quiet operation is possible.

The holder 35 for supporting the hard disk drive device 18 in anti-vibration has a concave portion 53 opened upward, and the concave portion 53 holds the base plate 37 of the hard disk drive device 18 in a state of surrounding it. I have.

For this reason, by releasing the pushing of the hard disk drive 18 into the holder 35, the hard disk drive 18 can be taken out with the holder 35 remaining on the frame 4, and when the hard disk drive 18 is assembled, Simply base plate 3
7 only needs to be fitted into the recess 53 of the holder 35. Therefore, it is not necessary to attach or detach the holder 35 when adding or replacing the hard disk drive 18.

Further, when the holder 35 is placed on the bottom plate 7 of the frame 4, the left side plate 8 a, the front plate 9, the first and second support pieces 56 a, 56 b
It is not necessary to screw this holder 35 to the frame 4 because it is fixed simply by being fitted between the holder 35 and the holder 35, so that an excessive force is not applied to the holder 35. Therefore, despite the use of a rigid foam having a fine cell structure as the holder 35, no trouble is required in handling the holder 35, and the attaching and detaching work at the time of adding and replacing the hard disk drive 18 can be easily performed. It can be carried out.

Further, according to the above configuration, since the foam holder 35 can be foamed into an arbitrary shape, the holder 35 can be optimally cooled in accordance with the flow path of the cooling air in the housing 3. The air passage 59 can be easily formed. For this reason, even if the control board 39 that generates heat is surrounded by the recess 53 of the holder 35, the control board 39 can be efficiently cooled by the cooling air flowing through the cooling air passage 59, and the heat radiation of the hard disk drive 18 can be reduced. There is an advantage that it is also perfect.

The present invention is not limited to the first embodiment, and FIG. 10 shows a second embodiment of the present invention.

The second embodiment differs from the first embodiment mainly in the configuration for absorbing the vibration of the hard disk drive. The hard disk drive, CD-ROM drive and The structure of the frame is the first
This is the same as the embodiment.

As can be seen from FIG. 10, the holder 100 for supporting the hard disk drive 18 in vibration isolation is made of E-pack (trade name: Sirod Corporation) which is a rigid foam made of polypropylene. I have. The holder 100 includes a lower holder 101 and an upper holder 102
And is divided into:

The lower holder 101 includes a base portion 103 placed on a bottom plate of a frame, a pair of side wall portions 104a, 104 rising from both side edges of the base portion 103,
And a front wall 105 rising from the front edge of the base 103. Side walls 104a, 104b and front wall 1
Reference numeral 05 denotes a concave portion 106 which is opened upward on the base portion 103, and the base plate 37 of the hard disk drive 18 is detachably fitted in the concave portion 106.

For this reason, the base plate 37 is surrounded by the lower holder 101, and the top cover 38 covering the base plate 37 projects above the lower holder 101.

The base 103 of the lower holder 101 has a groove 108 on the upper surface facing the recess 106. Groove 1
Reference numeral 08 faces a control board 39 of the hard disk drive 18 and forms a cooling air passage 109 between the control board 39 and the control board 39 through which cooling air flows. The cooling air passage 109 is formed by the side walls 104a, 104b and the base 1
03 has three openings 110 opened at the rear end face,
The cooling air flows into and out of the cooling air passage 109 through these openings 110.

The upper holder 102 is detachably butted against the lower holder 101 with the hard disk drive 18 interposed therebetween. The upper holder 102 has a first concave portion 112 opened downward and a second concave portion 113 opened upward. First recess 112
Is located above the hard disk drive 18, and the top cover 38 is fitted in the first recess 112. Therefore, the hard disk drive 18 is sandwiched between the lower holder 101 and the upper holder 102, and is entirely surrounded by the holders 101 and 102.

The case 66 of the CD-ROM drive 17 is detachably fitted into the second recess 113 of the upper holder 102 from above. For this reason, the upper holder 102 holds the case 66 of the CD-ROM drive device 17 so as to surround it.

According to such a configuration, the hard disk drive 18 is held by the frame 4 with the foamed holder 100 interposed therebetween, so that the vibration transmission from the hard disk drive 18 to the frame 4 is ensured. The resonance of the frame 4 can be prevented.

Moreover, since the holder 100 entirely surrounds the hard disk drive 18, the vibration noise generated during the operation of the hard disk drive 18 is reduced.
00, the sound can be prevented from spreading around the hard disk drive 18.

Therefore, the hard disk drive 18
In addition to the fact that the transmission of vibration from the frame 4 to the frame 4 is blocked by the holder 35, the noise during the operation of the hard disk drive 18 can be further reduced.

Also, since the CD-ROM drive device 17 is fitted in the second recess 113 of the upper holder 102, vibrations generated during operation of the CD-ROM drive device 17 are absorbed through the upper holder 102. can do. For this reason, not only the hard disk drive 18 but also the transmission of vibrations from the CD-ROM drive 17 to the frame 4 can be cut off, thereby improving quietness.

The disk drive device supported by the vibration-proof holder is not limited to a hard disk drive device, but may be implemented in a DVD drive device, for example.

The electronic apparatus according to the present invention is not limited to a desktop personal computer, but may be, for example, a book-type portable computer or a server device.

[0091]

According to the present invention described in detail above, the transmission of vibration from the disk drive to the frame can be reliably cut off by the holder, and noise caused by resonance of the frame is reduced to achieve quiet operation. Becomes possible.

Moreover, since the vibration noise generated by the disk drive can be confined inside the holder, the sound can be prevented from diffusing around the disk drive.
Noise during operation of the disk drive device can be further reduced.

Further, according to the present invention, it is not necessary to attach / detach the holder at the time of adding or exchanging the disk drive, so that it takes time to handle the holder despite the fact that the holder is made of foam. In other words, it is possible to easily perform the attachment / detachment work at the time of adding and replacing the disk drive device.

[Brief description of the drawings]

FIG. 1 is an exemplary perspective view of a desktop personal computer according to a first embodiment of the present invention;

FIG. 2 is a perspective view of a computer main body in a state where a frame is pulled out from a cover and functional components such as a control circuit module and a hard disk drive are opened.

Fig. 3 Hard disk drive and CD-ROM on frame
FIG. 2 is an exemplary perspective view of a computer main body showing a state in which a driving device and a power supply unit are incorporated.

Fig. 4 Holder, hard disk drive and CD-RO
FIG. 3 is an exploded perspective view showing the positional relationship of the M drive device.

FIG. 5 is a perspective view of the computer main body showing a state where the hard disk drive is fitted in a holder fixed to the frame.

FIG. 6 is an exemplary perspective view of the computer main body showing a state where a holder is fitted to a frame;

FIG. 7: Hard disk drive and CD-
FIG. 3 is a cross-sectional view showing a state in which the ROM drive device is incorporated.

FIG. 8A is a cross-sectional view showing a state in which the hard disk drive is pressed against a holder via a bracket.
(B) is a sectional view showing a positional relationship between a screw for fixing the guide to the hard disk drive and a conductive piece of the frame.

[Fig. 9] A hard disk drive and a CD-
FIG. 3 is a cross-sectional view showing a state in which the ROM drive device is incorporated.

FIG. 10 is an exemplary exploded perspective view showing a positional relationship among a holder, a hard disk drive, and a CD-ROM drive according to the second embodiment of the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 ... Case 4 ... Frame 18 ... Disk drive (hard disk drive) 35, 100 ... Holder 36 ... Housing 39 ... Control board 59 ... Cooling air passage 67 ... Holding means (bracket) 101 ... Lower holder 102 ... Upper holder

Claims (13)

[Claims] 1. A disk drive as a vibration source, a metal frame for accommodating the disk drive, and a synthetic resin foam, which are fixed by being fitted into the frame, A holder for holding at least a part of the disk drive device in a detachably surrounding state, the fixing structure for a disk drive device. 2. The frame according to claim 1, wherein the frame includes a bottom plate on which the holder is placed, and an upright plate rising from a peripheral edge of the bottom plate, wherein the bottom plate is provided between the upright plate and the holder. A fixing structure for a disk drive device, comprising a plurality of support pieces for sandwiching and holding the disk. 3. The holder according to claim 2, wherein the holder has a base portion placed on a bottom plate of the frame, and a pair of side wall portions projecting upward from the base portion and facing each other. A fixing structure for a disk drive device, wherein a bottom portion of the disk drive device is detachably fitted into a recess defined by a base portion and a side wall portion. 4. The disk drive device according to claim 3, wherein the disk drive device has a pair of side surfaces in contact with a side wall portion of the holder, and at least one positioning guide protruding sideways on each of these side surfaces. , And a side wall of the holder has a concave portion into which the guide is detachably fitted. 5. The disk drive device according to claim 4, wherein the disk drive device includes a metal housing having the side surface, and the guide of the disk drive device is made of a synthetic resin material. A fixing structure for a disk drive device, wherein the fixing structure is fixed to the housing via the screws described above, and the frame has an elastically deformable contact piece in contact with a head of the screw. 6. The disk drive device according to claim 3, wherein the disk drive device has a control board that generates heat and is exposed at a bottom thereof, and the base portion of the holder has a cooling wind at a position facing the control board. A fixed structure for a disk drive device, comprising: a cooling air passage through which the air flows. 7. The fixing structure for a disk drive device according to claim 1, wherein the disk drive device is pressed against the holder via holding means. 8. The disk drive according to claim 7, wherein the holding means is a metal bracket for supporting a functional component, and the bracket is attached to the disk drive device when the bracket is detachably mounted on the frame. A fixing structure for a disk drive, comprising: a pressing portion that comes into contact with the holder from the opposite side. 9. The device according to claim 8, wherein the holder has a base placed on the frame, and a pair of side walls protruding upward from the base. The bottom of the disk drive device is removably fitted in the recess defined by, and the disk drive device has at least one guide that is removably fitted into the side wall of the holder from above, A fixing structure for a disk drive device, wherein a pressing portion of the bracket is in contact with a portion of the outer peripheral surface of the guide that protrudes above the side wall portion. 10. A disk drive having a box-shaped housing and vibrating during operation, a metal frame for accommodating the disk drive, and a synthetic resin foam, A holder for holding the driving device to the frame, the holder comprising: a lower holder fixed by being fitted into the frame; and an upper holder detachably superimposed on the lower holder. A fixing structure for a disk drive, wherein upper holders surround the housing of the disk drive in cooperation with each other. 11. A housing having a metal frame, a disk drive device housed in the housing, which vibrates during operation, and a synthetic resin foam, which is fitted into the frame. And a holder for holding a part of the disk drive device in a removably surrounding state. 12. The disk drive according to claim 11, wherein the disk drive includes a box-shaped housing and a control board that generates heat and is exposed at a bottom of the housing, and the holder includes at least a bottom of the housing. And a cooling air passage through which cooling air flows at a position facing the control board. 13. The suction device according to claim 12, wherein the housing has a fan for forcibly discharging air from the housing, and the cooling air passage has one end opened to the frame. An electronic device, wherein the electronic device is connected to a mouth and the other end is open to the inside of the housing.