CN219811338U - Hard disk fixing structure and industrial personal computer - Google Patents

Abstract

The embodiment of the utility model provides a hard disk fixing structure and an industrial personal computer, wherein the hard disk fixing structure comprises: the support plate is provided with a positioning part; the elastic limiting piece comprises a fixing part, an elastic connecting part and an abutting part which are connected in sequence, and the fixing part is fixedly connected with the supporting plate; the hard disk support is provided with a containing groove which is used for limiting the hard disk to be installed, and the hard disk support is provided with a limiting part; the hard disk support is detachably connected to the supporting plate through the plug-in fit of the limiting part and the positioning part, and after the hard disk support is installed in place, the abutting part abuts against the edge of the hard disk support and stops the hard disk support in the direction that the limiting part is loosened from the positioning part. The hard disk fixing structure has the advantages of fewer parts, simple structure, low cost and high cost performance. The hard disk support is very simple and labor-saving in the mounting and dismounting processes, does not need any tool, is convenient to operate, and improves the experience of users.

Description

Hard disk fixing structure and industrial personal computer

Technical Field

The utility model relates to the technical field of industrial personal computers, in particular to a hard disk fixing structure and an industrial personal computer.

Background

With the development of science and technology and industry, the hard disk storage configuration requirements of end users on industrial control products are diversified, and different users have different hard disk storage requirements. At present, common industrial control products can meet diversified hard disk storage configuration requirements by adding a hard disk expansion bracket or a module. The added modules are usually mounted in the support plate by means of screw locks or blind rivet fastening. In addition, the hard disk expansion requirement is generally set up at the client side, the mounting and dismounting modes are complex, the customer experience is poor, and if the hard disk expansion requirement is operated by a user unfamiliar with the product structure, the risk of mistakes or injuries is easy to exist.

Disclosure of Invention

The utility model provides a hard disk fixing structure and an industrial personal computer. The hard disk support is very simple and labor-saving in the mounting and dismounting processes, does not need any tool, is convenient to operate, and improves the experience of users.

The embodiment of the utility model provides a hard disk fixing structure, which comprises: the device comprises a supporting plate, an elastic limiting piece and a hard disk bracket, wherein a positioning part is arranged on the supporting plate; the elastic limiting piece comprises a fixing part, an elastic connecting part and an abutting part which are sequentially connected, and the fixing part is fixedly connected with the supporting plate; the hard disk support is provided with a containing groove which is used for limiting a hard disk to be installed, and the hard disk support is provided with a limiting part; the hard disk support is detachably connected to the supporting plate through the plug-in fit of the limiting part and the positioning part, and after the hard disk support is installed in place, the abutting part abuts against the edge of the hard disk support and stops the hard disk support in the direction that the limiting part loosens from the positioning part.

Further, the positioning part is a positioning column connected to the supporting plate; the limiting part is a limiting hole penetrating through the bottom wall of the accommodating groove; and part of the structure of the positioning column penetrates through the limiting hole and is propped against the surface of the bottom wall of the groove, which is away from the supporting plate.

Further, the limiting hole comprises a first free hole end and a first limiting hole end which are communicated, and the aperture of the first free hole end is larger than that of the first limiting hole end; the positioning column comprises a base, an end head and a connecting column for connecting the base and the end head, and the connecting column is matched with the base and the end head to form a clamping groove; the base is fixed on the supporting plate, the outer diameter of the end head is smaller than the caliber of the first free hole end, the outer diameters of the base and the end head are both larger than the caliber of the first limiting hole end, the aperture of the first limiting hole end is matched with the outer diameter of the connecting column, so that the connecting column can be clamped in the first limiting hole end, and the bottom wall of the groove is clamped in the clamping groove.

Further, the accommodating groove comprises two groove side walls arranged at two opposite edges of the groove bottom wall, the groove side walls are provided with a plurality of first mounting holes, and after the hard disk is placed in the accommodating groove, the hard disk is fixed in the accommodating groove through the first mounting holes and second mounting holes arranged on the hard disk by fasteners; the abutment portion abuts against one of the remaining two edges of the groove bottom wall between the two groove side walls.

Further, the first mounting hole comprises a second free hole end and a second limiting hole end which are communicated, and the aperture of the second free hole end is larger than that of the second limiting hole end, so that the fastener can penetrate through the second free hole end and be clamped in the second limiting hole end.

Further, a gasket is arranged in the first mounting hole and is clamped at the second limiting hole end of the first mounting hole; after the hard disk is fixed in the accommodating groove, one end of the gasket is arranged between the fastener and the groove side wall, and the other end of the gasket is arranged between the hard disk and the groove side wall.

Further, the abutting portion is provided with a pressing portion extending in a direction away from the elastic connection portion, and is configured to release the abutment of the hard disk holder by applying a force to the pressing portion.

Further, the hard disk support further comprises a groove end wall, the groove end wall is arranged at one side edge of the groove bottom wall away from the abutting part, and the groove end wall is used for limiting the hard disk to move in the accommodating groove along the direction perpendicular to the groove end wall after the hard disk is placed in the accommodating groove.

Further, the bottom wall of the groove is provided with a heat dissipation hole.

The embodiment of the utility model also provides an industrial personal computer, which comprises: the case structure is provided with the hard disk fixing structure.

The hard disk fixing structure and the industrial personal computer have the following effects:

according to the technical scheme, the hard disk support for installing the hard disk is detachably connected with the supporting plate through the plug-in matching of the limiting part and the positioning part, and particularly, the hard disk support is limited through the elastic limiting part, so that the hard disk support is prevented from being loosened. Therefore, in the using process, the hard disk bracket provided with the hard disk can be quickly arranged on the supporting plate in a sliding insertion mode; when the hard disk support is detached, the elastic limiting piece can be acted on to release the hard disk support, so that the hard disk support can be quickly detached from the supporting plate. The whole hard disk support is very simple and labor-saving in the mounting and dismounting processes, does not need any tool, is convenient to operate, and improves the experience of users. The industrial personal computer using the hard disk fixing structure can be used for configuring the number of hard disk brackets contained in the industrial personal computer according to the requirement, and can flexibly configure the storage capacity of the industrial personal computer.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the whole structure of a hard disk fixing structure according to an embodiment of the present utility model;

FIG. 2 is an exploded view of the hard disk fixing structure (including the hard disk) of FIG. 1;

FIG. 3 is a schematic structural view of an elastic limiting member of the hard disk fixing structure in FIG. 1;

FIG. 4 is a schematic diagram of the structure of the hard disk fixing structure in FIG. 1 after the supporting plate is connected with the elastic limiting member;

FIG. 5A is a schematic view of a positioning post on the support plate of FIG. 4;

FIG. 5B is a cross-sectional view of the positioning post of FIG. 5A;

FIG. 6 is a schematic structural view of a hard disk bracket of the hard disk fixing structure in FIG. 1;

FIG. 7 is an enlarged view of the limiting hole of the A portion of the hard disk holder of FIG. 6;

FIG. 8A is a schematic diagram showing the whole structure of the hard disk holder of the hard disk fixing structure of FIG. 1 after the hard disk is mounted;

fig. 8B is an exploded view of the hard disk holder and the hard disk in fig. 8A.

Reference numerals:

10. a support plate; 11. positioning columns; 111. a base; 112. an end portion; 113. a connecting column; 114. a clamping groove; 115. a boss; 20. an elastic limiting piece; 21. a fixing part; 22. an elastic connection part; 23. an abutting portion; 24. a pressing part; 30. a hard disk support; 31. a limiting hole; 311. a first free bore end; 312. a first limiting hole end; 32. a bottom wall of the tank; 33. a groove sidewall; 34. a first fixing hole; 35. a gasket; 36. a slot end wall; 37. a heat radiation hole; 40. a hard disk; 41. a second mounting hole; 50. a fastener.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 3, an embodiment of the present utility model provides a hard disk fixing structure, including: a support plate 10, an elastic stopper 20, and a hard disk holder 30. Wherein a positioning portion is provided on the support plate 10. The elastic limiting member 20 includes a fixing portion 21, an elastic connecting portion 22, and an abutting portion 23 connected in sequence; the fixing portion 21 is fixedly connected to the support plate 10 (for example, by a blind rivet or a rivet), so that the elastic stopper 20 is fixedly connected to the support plate 10. The hard disk holder 30 is formed with a receiving groove for limiting the hard disk 40 to be mounted. The hard disk support 30 is provided with a limiting part, so that the hard disk support 30 is detachably connected to the support plate 10 in a low mode through the plug-in fit of the limiting part and the positioning part, after the hard disk support 30 is installed in place, the abutting part 23 abuts against the edge of the hard disk support 30, and in the direction that the limiting part 31 is loosened from the positioning part 11, the hard disk support 30 is stopped.

Specifically, as shown in fig. 4 to 7, the positioning portion is a positioning post 11 connected to the support plate 10, the limiting portion is a limiting hole 31 penetrating through a bottom wall 32 of the accommodating groove, and a part of the positioning post 11 penetrates through the limiting hole 31 and abuts against a surface of the bottom wall 32 facing away from the support plate 10. Further, as shown in fig. 7, the limiting hole 31 includes a first free hole end 311 and a first limiting hole end 312 which are connected, and the aperture of the first free hole end 311 is larger than that of the first limiting hole end 312, for example, the limiting hole 31 is a gourd hole. As shown in fig. 5A and 5B, the positioning column 11 includes a base 111, an end portion 112, and a connecting column 113 connecting the base 111 and the end portion 112, and the connecting column 113 cooperates with the base 111 and the end portion 112 to form a clamping groove 114. The base 111 is fixed on the support plate 10, the outer diameter of the end head 112 is smaller than the caliber of the first free hole end 311, the outer diameters of the base 111 and the end head 112 are both larger than the caliber of the first limiting hole end 312, and the aperture of the first limiting hole end 312 is matched with the outer diameter of the connecting column 113, so that the connecting column 113 is clamped in the first limiting hole end 312, and the bottom wall 32 of the groove is clamped in the clamping groove 114. When the limiting part is in plug-in fit with the positioning part, the first free hole end 311 of the limiting hole 31 passes through the end head 112, the groove bottom wall 32 is opposite to the clamping groove 114, and then the hard disk support 30 is pushed, so that the connecting column 113 moves from the first free hole end 311 to the first limiting hole end 312 and is clamped in the first limiting hole end 312. Because the areas of the base 111 and the end head 112 are larger than the area of the first limiting hole end 312, the bottom wall 32 of the tank is clamped in the clamping groove 114, the hard disk support 30 is fixed on the support plate 10 through the cooperation of the positioning column 11 and the limiting hole 31, and the movement of the hard disk support 30 along the direction perpendicular to the bottom wall 32 of the tank is limited. To this end, the hard disk holder 30 is mounted in place. The limiting hole 31 is provided in a form including a first free hole end 311 and a first limiting hole end 312, so that the limiting hole 31 has a guiding effect on the movement of the connection post 113 in the limiting hole 31, thereby enabling the sliding of the positioning post 11 in the limiting hole 31 of the hard disk support 30 to be smooth.

When the hard disk holder 30 is to be removed from the support plate 10, the hard disk holder 30 is pushed so that the connection post 113 moves from the first spacing hole end 312 into the first free hole end 311, and the spacing hole 31 can be separated from the positioning post 11 due to the smaller area of the end portion 112 of the positioning post 11 than the first free hole end 311, thereby removing the hard disk holder 30 from the support plate 10. The number and arrangement of the limiting holes 31 provided on the groove bottom wall 32 can be determined as needed. The number of the positioning columns 11 arranged on the supporting plate 10 is the same as the number of the limiting holes 31, and the arrangement mode of the positioning columns 11 on the supporting plate 10 is the same as the arrangement mode of the limiting holes 31 on the tank bottom wall 32, so that the positioning columns 11 can be in plug-in fit with the limiting holes 31.

Further, in order to more firmly connect the hard disk holder 30 to the support plate 10 by the insertion fit of the positioning posts 11 and the limiting holes 31, the slot width of the clamping slot 114 may be set to be slightly larger than the thickness of the slot bottom wall 32. Further, as shown in fig. 5B, a boss 115 is provided on the end surface of each of the base 111 and the end portion 112 connected to the connection post 113, and when the groove bottom wall 32 is inserted into the engagement groove 114, the boss 115 abuts against the groove bottom wall 32 to fix the groove bottom wall 32 in the engagement groove 114.

Further, as shown in fig. 6 to 8B, the receiving groove includes two groove side walls 33 provided at opposite edges of the groove bottom wall 32, the groove side walls 33 are provided with a plurality of first mounting holes 34, and after the hard disk 40 is placed in the receiving groove, the hard disk 40 is fixed in the receiving groove by fastening members 50 (e.g., screws) passing through the first mounting holes 34 and second mounting holes 41 provided on the hard disk 40. In a specific embodiment, the first mounting hole 34 may include a second free hole end and a second limiting hole end (not shown) that are in communication, where the second free hole end has a larger aperture than the second limiting hole end. The first mounting hole 34 may be configured in a gourd shape similar to the spacing hole 31 such that the fastener 50 can pass through and be snapped into the second free hole end. In order to reduce vibration between the hard disk 40 and the hard disk holder 30, in the case where the second hard disk 40 and the hard disk holder 30 are rigidly connected by the fastener 50, a gasket 35, for example, an i-shaped ring gasket, may be attached to the second stopper Kong Duanka, and after the hard disk 40 is fixed in the receiving groove, one end of the gasket 35 is disposed between the fastener 50 and the groove sidewall 33, and the other end is disposed between the hard disk 40 and the groove sidewall 33, thereby reducing vibration between the hard disk 40 and the groove sidewall 33, and between the groove sidewall 33 and the fastener 50, by the gasket 35.

Further, as shown in fig. 1 to 3 and 6, the abutment portion 23 abuts against one of the remaining two edges of the groove bottom wall 32 between the two groove side walls 33 for restricting the movement of the hard disk holder 30 in a direction (a direction in which the positioning post 11 moves from the first stopper hole end 312 to the first free hole end 311) out of the restriction of the positioning post 11. The hard disk holder 30 further includes a groove end wall 36 provided at an edge of the groove bottom wall 32 on a side remote from the abutting portion 23. The slot end wall 36 is used to limit movement of the hard disk 40 in the receiving slot in a direction perpendicular to the slot end wall 36 after the hard disk 40 is placed in the receiving slot. Further, in order to facilitate pressing of the abutting portion 23, the abutting portion 23 is released from the stopper of the hard disk holder 30, and the abutting portion 23 is provided with a pressing portion 24 extending in a direction away from the elastic connection portion 22 for applying a force to the pressing portion 24.

Further, as shown in fig. 6, a heat dissipation hole 37 is formed in the bottom wall 32 to facilitate heat dissipation during operation of the hard disk 40. The shape, number, and arrangement of the heat dissipation holes 37 on the groove bottom wall 32 may be determined as desired, and the embodiment of the present utility model is not particularly limited.

In fixing the hard disk 40 using the hard disk fixing structure in the embodiment of the present utility model, the gasket 35 is first installed into the first installation hole 34 provided on the groove sidewall 33 of the hard disk holder 30. The hard disk 40 is then placed into the receiving groove of the hard disk holder 30, and the fastener 50 is inserted into the first mounting hole 34 and the second mounting hole 41 provided on the hard disk 40 and tightened, thereby fixing the hard disk 40 in the hard disk holder 30. The first free hole end 311 of the limit hole 31 of the hard disk holder 30 of the assembled hard disk 40 is aligned with the positioning post 11 fixed to the support plate 10 and put down such that the connection post 113 of the positioning post 11 is positioned in the first free hole end 311. Meanwhile, the elastic connection portion 22 of the elastic stopper 20 is pressed by the hard disk holder 30 to move downward. Then, the hard disk holder 30 is moved in a direction away from the elastic stopper 20, so that the connection post 113 of the positioning post 11 is moved from the first free hole end 311 to the first stopper hole end 312 until the slot bottom wall 32 is inserted into the clamping slot 114 to abut against the connection post 113, so that the hard disk holder 30 stops moving, and the slot bottom wall 32 inserted into the clamping slot 114 is clamped in the clamping slot 114, restricting the movement of the hard disk holder 30 in a direction perpendicular to the slot bottom wall 32, thereby mounting the hard disk holder 30 in place. Meanwhile, in the process of moving the hard disk support 30 away from the elastic limiting member 20, the extrusion of the hard disk support 30 to which the elastic connection portion 22 is subjected is slowed down, so that rebound is generated. When the hard disk support 30 is mounted in place, the abutting portion 23 of the elastic limiting member 20 abuts against the edge of the bottom wall 32 of the hard disk support 30, and movement of the hard disk support 30 in the direction parallel to the bottom wall 32 of the hard disk support to the elastic limiting member 20 is limited. Up to this point, the assembly of the hard disk holder 30 (the hard disk 40 is mounted) with the support plate 10 is completed by the fixing and limiting functions of the hard disk holder 30 by the positioning posts 11 and the elastic limiting members 20 at the same time. When the hard disk holder 30 is to be detached from the support plate 10, the pressing portion 24 is pressed in the direction of the support plate 10, so that the abutting portion 23 is separated from the hard disk holder 30, and the limitation of the hard disk holder 30 is released. The hard disk holder 30 is then moved so that the connection post 113 moves from the first spacing hole end 312 to the first free hole end 311. The hard disk holder 30 is separated from the positioning posts 11, thereby removing the hard disk holder 30 from the support plate 10.

Further, in order to ensure the rebound stability of the elastic connection portion 22 during the connection and disconnection of the hard disk support 30 to the support plate 10, the elastic stopper 20 may be made of stainless steel having high elasticity.

The embodiment of the utility model also provides an industrial personal computer, which comprises a case structure, wherein the case structure is provided with the hard disk fixing structure. The support plate 10 of the present utility model may be a separate component from the chassis, and the support plate 10 is fixed within the chassis structure, for example, on a side wall of the chassis structure. Of course, the support plate 10 may also be part of the chassis structure, for example, the support plate 10 is a side wall of the chassis structure, and in some specific embodiments, a plurality of hard disk supports 30 may be disposed on the support plate 10. A hard disk 40 is installed in each hard disk holder 30, and each hard disk holder 30 corresponds to one elastic stopper 20 provided on the support plate 10 and a positioning portion corresponding to the stopper on the hard disk holder 30. So that the storage capacity of the industrial personal computer can be configured according to the requirement.

The hard disk fixing structure and the industrial personal computer have the following effects:

according to the technical scheme, the hard disk support 30 for mounting the hard disk 40 is detachably connected with the supporting plate 10 through the plug-in matching of the limiting part and the positioning part, and particularly, the hard disk support 30 is limited through the elastic limiting part 20, so that the hard disk support 30 is prevented from loosening. Thus, the hard disk holder 30 with the hard disk 40 mounted thereon can be rapidly mounted to the support plate 10 in a sliding manner during use; when the hard disk support is detached, the elastic limiting piece 20 can act so as to release the hard disk support 30, and the hard disk support 30 can be quickly detached from the support plate 10. The whole hard disk bracket 30 is very simple and labor-saving in the mounting and dismounting process, does not need any tool, is convenient to operate, and improves the experience of users. The industrial personal computer using the hard disk fixing structure can be used for configuring the number of the hard disk brackets 30 contained in the industrial personal computer according to the requirement, and can flexibly configure the storage capacity of the industrial personal computer.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar conditions; in the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A hard disk fixing structure, characterized by comprising:

a support plate (10), wherein a positioning part is arranged on the support plate (10);

the elastic limiting piece (20) comprises a fixing part (21), an elastic connecting part (22) and an abutting part (23) which are connected in sequence, and the fixing part (21) is fixedly connected with the supporting plate (10); and

the hard disk drive comprises a hard disk support (30), wherein an accommodating groove is formed in the hard disk support (30) and used for limiting a hard disk (40) to be installed, and a limiting part is arranged on the hard disk support (30);

the hard disk support (30) is detachably connected to the supporting plate (10) through the plug-in fit of the limiting part and the positioning part, and after the hard disk support (30) is installed in place, the abutting part (23) abuts against the edge of the hard disk support (30) and stops the hard disk support (30) in the direction that the limiting part is loosened from the positioning part.

2. The hard disk fixing structure as claimed in claim 1, wherein,

the positioning part is a positioning column (11) connected to the supporting plate (10);

the limiting part is a limiting hole (31) penetrating through the bottom wall (32) of the accommodating groove;

part of the structure of the positioning column (11) penetrates through the limiting hole (31) and is pressed against the surface of the groove bottom wall (32) deviating from the supporting plate (10).

3. The hard disk fixing structure as claimed in claim 2, wherein,

the limiting hole (31) comprises a first free hole end (311) and a first limiting hole end (312) which are communicated, wherein the aperture of the first free hole end (311) is larger than that of the first limiting hole end (312);

the positioning column (11) comprises a base (111), an end head (112) and a connecting column (113) for connecting the base (111) and the end head (112), wherein the connecting column (113) is matched with the base (111) and the end head (112) to form a clamping groove (114);

the base (111) is fixed on the support plate (10), the outer diameter of the end head (112) is smaller than the caliber of the first free hole end (311), the outer diameters of the base (111) and the end head (112) are both larger than the caliber of the first limiting hole end (312), the aperture of the first limiting hole end (312) is matched with the outer diameter of the connecting column (113), so that the connecting column (113) can be clamped in the first limiting hole end (312), and then the groove bottom wall (32) is clamped in the clamping groove (114).

4. The hard disk fixing structure as claimed in claim 2, wherein,

the accommodating groove comprises two groove side walls (33) arranged at two opposite edges of the bottom wall (32), the groove side walls (33) are provided with a plurality of first mounting holes (34), and after the hard disk (40) is placed in the accommodating groove, the hard disk (40) is fixed in the accommodating groove through a fastener (50) penetrating through the first mounting holes (34) and second mounting holes (41) arranged on the hard disk (40);

the abutment portion (23) abuts against one of the remaining two edges of the groove bottom wall (32) located between the two groove side walls (33).

5. The hard disk fixing structure according to claim 4, wherein the first mounting hole (34) includes a second free hole end and a second limiting hole end which are communicated, and the aperture of the second free hole end is larger than that of the second limiting hole end, so that the fastener (50) can pass through the second free hole end and be clamped in the second limiting hole end.

6. The hard disk fixing structure as claimed in claim 5, wherein,

a gasket (35) is arranged in the first mounting hole (34), and the gasket (35) is clamped at the second limiting hole end of the first mounting hole (34); after the hard disk (40) is fixed in the accommodating groove, one end of the washer (35) is arranged between the fastener (50) and the groove side wall (33), and the other end of the washer (35) is arranged between the hard disk (40) and the groove side wall (33).

7. The hard disk fixing structure according to any one of claims 1 to 6, wherein the abutting portion (23) is provided with a pressing portion (24) extending in a direction away from the elastic connection portion (22) for releasing the abutment of the abutting portion (23) against the hard disk holder (30) by applying a force to the pressing portion (24).

8. The hard disk fixing structure as claimed in any one of claims 4 to 6, wherein,

the hard disk support (30) further comprises a groove end wall (36), wherein the groove end wall (36) is arranged at one side edge of the groove bottom wall (32) away from the abutting part (23), and the groove end wall (36) is used for limiting the movement of the hard disk (40) in the accommodating groove along the direction perpendicular to the groove end wall (36) after the hard disk (40) is placed in the accommodating groove.

9. The hard disk fixing structure according to any one of claims 2 to 6, wherein the groove bottom wall (32) is provided with a heat radiation hole (37).

10. An industrial personal computer, characterized by comprising: a chassis structure on which the hard disk fixing structure according to any one of claims 1 to 9 is provided.