CN220290462U - Hard disk box - Google Patents

Abstract

The utility model relates to the technical field of hard disk boxes, and provides a hard disk box which comprises a bottom shell, wherein the bottom shell is provided with a containing groove and a first transfer opening communicated with the containing groove; the hard disk transfer module is arranged in the accommodating groove and comprises a circuit board, a connector and an adapter, wherein the circuit board is fixed in the accommodating groove through a limiting assembly, the connector and the adapter are connected with the circuit board, the circuit board is provided with a first end and a second end which are opposite, the first end of the circuit board is close to the first transfer opening, the connector is laminated at the first end of the circuit board, an interface of the connector for being connected with the hard disk faces the second end of the circuit board, the adapter is laminated at the first end of the circuit board, and one end of the adapter is exposed to the first transfer opening; the metal shell is sleeved on the bottom shell. Therefore, the utility model can shorten the length of the hard disk box, reduce the space limitation of the hard disk box and better meet the use requirement of users.

Description

Hard disk box

Technical Field

The utility model belongs to the technical field of hard disk boxes, and particularly relates to a hard disk box.

Background

With the rapid development of networks and multimedia, the demand for large-capacity data exchange is increasing, so that hard disks are generated, but common hard disks are installed in a case and are not easy to move. The hard disk box realizes the movement of the hard disk through a connection mode with the hard disk conveniently and quickly. However, the present hard disk cartridge has a longer length, so that the hard disk cartridge has a space limitation and cannot meet the use requirement of users.

Disclosure of Invention

The present utility model aims to overcome at least one of the above-mentioned disadvantages of the prior art, and provides a hard disk cartridge, which can reduce the length of the hard disk cartridge and reduce the space limitations of the hard disk cartridge.

The technical scheme of the utility model is as follows: a hard disk cartridge comprising: the bottom shell is provided with a containing groove and a first transfer opening communicated with the containing groove; the hard disk transfer module is arranged in the accommodating groove and comprises a circuit board, a connector and an adapter, wherein the circuit board is fixed in the accommodating groove through a limiting assembly, the connector and the adapter are connected with the circuit board, the circuit board is provided with a first end and a second end which are opposite, the first end of the circuit board is close to the first transfer opening, the connector is laminated at the first end of the circuit board, an interface of the connector for being connected with the hard disk faces the second end of the circuit board, the adapter is laminated at the first end of the circuit board, and one end of the adapter is exposed to the first transfer opening; the metal shell is sleeved on the bottom shell.

As a further improvement of the present technical solution, the connector and the adapter are arranged along the width direction of the circuit board.

As a further improvement of the technical scheme, the connector is provided with a first side and a second side which are opposite, the first side of the connector is close to the first transfer opening, the circuit board is provided with a hard disk area for supporting a hard disk at the second side of the connector, and the interface of the connector is arranged on one side of the hard disk area.

As a further improvement of the technical scheme, the circuit board is provided with an upper surface and a lower surface which are opposite, the limiting assembly comprises an upper limiting block and a lower limiting block, the upper limiting block is arranged on the side surface of the groove of the accommodating groove, the upper limiting block is abutted to the upper surface of the circuit board, the lower limiting block is arranged on the bottom surface of the groove of the accommodating groove, and the lower limiting block is abutted to the lower surface of the circuit board.

As a further improvement of the technical scheme, the limiting assembly further comprises a limiting column, the limiting column is arranged on the bottom surface of the accommodating groove, the circuit board is provided with a limiting hole, and the limiting column is arranged in the limiting hole.

As a further improvement of the technical scheme, the hard disk box further comprises a plurality of light source pieces, wherein the light source pieces are connected with the circuit board, and the light source pieces are surrounded on the periphery of the hard disk area; the metal shell is provided with light transmission openings facing the light source pieces.

As a further improvement of the technical scheme, the hard disk box further comprises a light transmission piece arranged at the light transmission opening; the metal shell extends to the light transmission opening and is provided with a clamping block for clamping the light transmission piece.

As a further improvement of the technical scheme, a first opening is formed in the surface, facing the metal shell, of the bottom shell, a first clamping portion extends from one end of the first opening into the first opening, a second opening is formed in the metal shell, corresponding to the first clamping portion, and the first clamping portion is clamped to the second opening.

As a further improvement of the technical scheme, the hard disk box further comprises a protective shell, wherein the protective shell is provided with an accommodating opening matched with the metal shell, and the metal shell is arranged in the protective shell through the accommodating opening.

As a further improvement of the technical scheme, the hard disk cartridge further comprises an end cover, wherein the end cover is arranged at one end of the bottom shell far away from the first transfer opening, and the end cover seals the accommodating opening.

The utility model provides a hard disk box which comprises a bottom shell, a hard disk switching module and a metal shell. The bottom shell is provided with a containing groove and a first transfer opening communicated with the containing groove. The hard disk switching module is arranged in the accommodating groove and comprises a circuit board, a connector and an adapter, wherein the circuit board is fixed in the accommodating groove through a limiting assembly, the connector and the adapter are connected with the circuit board, the circuit board is provided with a first end and a second end which are opposite, the first end of the circuit board is close to the first switching opening, the connector is laminated at the first end of the circuit board, an interface of the connector, which is connected with the hard disk, faces the second end of the circuit board, the adapter is laminated at the first end of the circuit board, and one end of the adapter is exposed to the first switching opening. The metal shell is sleeved on the bottom shell. Compared with the prior art, the connector and the adapter are stacked on the circuit board, and the positions of the connector, the adapter and the hard disk to be arranged on the circuit board are reasonably planned, so that the length of the hard disk box is shortened, the space limitation of the hard disk box is reduced, and the use requirement of a user can be better met.

Drawings

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

FIG. 1 is a perspective view of a hard disk cartridge according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a hard disk cartridge according to an embodiment of the present utility model without a hard disk adapter module;

FIG. 3 is a front view of a hard disk adapter module and a light source in a hard disk cartridge according to an embodiment of the present utility model;

FIG. 4 is an exploded view of a hard disk cartridge according to another embodiment of the present utility model, excluding a hard disk adapter module;

FIG. 5 is an enlarged view of a portion of FIG. 2 at A;

FIG. 6 is a partial enlarged view at B in FIG. 2;

fig. 7 is a partial enlarged view at C in fig. 2.

In the figure: 100. a hard disk cartridge; 10. a bottom case; 11. a bottom plate; 12. a front plate; 121. a first transfer opening; 13. a rear plate; 131. a connection hole; 132. a third clamping part; 14. a left side plate; 15. a right side plate; 16. a receiving groove; 161. a groove side; 162. a bottom surface of the groove; 17. a first opening; 18. a first clamping part; 19. an abutting portion; 20. a metal shell; 21. a first guide structure; 22. a light transmission port; 23. a clamping block; 24. a clamping groove; 30. a protective shell; 31. a protruding portion; 32. a second transfer opening; 40. a hard disk switching module; 41. a circuit board; 411. a first end; 412. a second end; 413. a hard disk area; 414. a limiting hole; 42. a connector; 43. an adapter; 50. an end cap; 51. a connecting block; 511. a second clamping part; 60. a light source member; 70. a light transmitting member; 71. a fourth clamping part; 80. a limit component; 81. an upper limiting block; 82. a lower limiting block; 83. and a limit column.

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.

It should be noted that the terms "disposed" and "connected" should be construed broadly, and may be, for example, directly disposed or connected, or indirectly disposed or connected through a central element or a central structure.

In addition, in the embodiments of the present utility model, terms of directions or positional relationships indicated by "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are directions or positional relationships based on the directions or positional relationships shown in the drawings or the conventional placement state or use state, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the structures, features, devices or elements to be referred to must have specific directions or positional relationships nor must be constructed and operated in specific directions, and thus should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

The various features and embodiments described in the detailed description may be combined in any suitable manner, for example, different embodiments may be formed by different combinations of features/embodiments, where not contradictory, and various possible combinations of features/embodiments in the present utility model are not described further in order to avoid unnecessary repetition.

Referring to fig. 1 to 3, the hard disk cartridge 100 includes a bottom case 10, a hard disk adapter module 40 and a metal case 20. The bottom chassis 10 is provided with a receiving groove 16 and a first transfer opening 121 communicating with the receiving groove 16. The hard disk adapting module 40 is arranged in the accommodating groove 16, the hard disk adapting module 40 comprises a circuit board 41, a connector 42 and an adapter 43, the circuit board 41 is fixed in the accommodating groove 16 through a limiting component 80, the connector 42 and the adapter 43 are connected with the circuit board 41, the circuit board 41 is provided with a first end 411 and a second end 412 which are opposite, the first end 411 of the circuit board 41 is close to the first adapting opening 121, the connector 42 is laminated at the first end 411 of the circuit board 41, an interface of the connector 42 for being connected with a hard disk faces the second end 412 of the circuit board 41, the adapter 43 is laminated at the first end 411 of the circuit board 41, and one end of the adapter 43 is exposed to the first adapting opening 121. The metal shell 20 is sleeved on the bottom shell 10. Compared with the prior art, the utility model shortens the length of the hard disk cartridge 100, reduces the space limitation of the hard disk cartridge 100 and can better meet the use requirement of users by stacking the connector 42 and the adapter 43 on the circuit board 41 and reasonably planning the positions of the connector 42, the adapter 43 and the hard disk to be arranged on the circuit board.

For the bottom case 10, referring to fig. 2, it is preferable that the bottom case 10 has a receiving groove 16 formed by enclosing a bottom plate 11, a front plate 12, a rear plate 13, a left plate 14 and a right plate 15, the front plate 12 and the rear plate 13 are disposed opposite to each other and the bottom is connected to the bottom plate 11, the left plate 14 and the right plate 15 are disposed opposite to each other, the bottom of the left plate 14 and the right plate 15 is connected to the bottom plate 11 and both sides are connected to the front plate 12 and the rear plate 13, and a hard disk adapter module 40 (referring to fig. 4) is disposed in the receiving groove 16, and the bottom plate 11, the front plate 12, the rear plate 13, the left plate 14 and the right plate 15 are disposed at the periphery of the hard disk adapter module 40, so that the hard disk adapter module 40 can be better protected.

Preferably, a first opening 17 is provided on a surface of the bottom case 10 facing the metal case 20, a first clamping portion 18 extends from one end of the first opening 17 into the first opening 17, a second opening is provided on the metal case 20 corresponding to the first clamping portion 18, and the first clamping portion 18 is clamped to the second opening. The first clamping portion 18 extends in the first opening 17, so that the first clamping portion 18 has better elastic force, and therefore, the clamping between the bottom shell 10 and the metal shell 20 can be conveniently achieved, and when the bottom shell 10 needs to be taken out, a user can draw out the bottom shell 10 from the metal shell 20 only by pressing the first clamping portion 18.

Preferably, a protruding abutting portion 19 is provided on a surface of the bottom case 10 facing the metal case 20, and the abutting portion 19 abuts against a surface of the metal case 20 facing the bottom case 10, so that adhesion of the bottom case 10 to the metal case 20 can be improved, and when the hard disk cartridge 100 is dropped, a possibility that the bottom case 10 is severely shaken or dropped is reduced.

For the metal case 20, referring to fig. 2, the metal case 20 is sleeved on the bottom case 10, and the front plate 12 and the rear plate 13 of the bottom case 10 seal the two ends of the metal case 20, so as to reduce the possibility that sharp protruding members enter the bottom case 10 from the two ends of the metal case 20, thereby better protecting the hard disk.

For the hard disk adapter module 40, please combine fig. 2 and fig. 3, preferably, the circuit board 41 has a first end 411 and a second end 412 opposite to each other, the connector 42 is stacked on the first end 411 of the circuit board 41, an interface of the connector 42 for connecting with a hard disk faces the second end 412 of the circuit board 41, the adapter 43 is stacked on the first end 411 of the circuit board 41, and the connector 42 and the adapter 43 are stacked on the circuit board 41 respectively, so that the space on the circuit board 41 can be better utilized, the length of the hard disk cartridge 100 is reduced, the space limitation of the hard disk cartridge 100 is reduced, and the use is convenient for a user.

Preferably, the connector 42 and the adapter 43 are disposed along the width direction of the circuit board 41, so that the space on the circuit board 41 can be better planned, and the length occupied by the hard disk cartridge 100 can be reduced.

Preferably, the connector 42 has a first side and a second side opposite to each other, the first side of the connector 42 is close to the first transfer opening 121, the circuit board 41 is provided with a hard disk area 413 at the second side of the connector 42 for supporting a hard disk, and the interface of the connector 42 is provided at one side of the hard disk area 413. The arrangement not only facilitates the connection of the hard disk to the interface of the connector 42, but also enables the hard disk to be connected to the circuit board 41 to be in laminated arrangement, and on the basis that the connector 42 and the adapter 43 are arranged along the width direction of the circuit board 41, the hard disk, the connector 42 and the adapter 43 are arranged along the length direction of the circuit board 41, so that the space on the circuit board 41 can be better utilized, the length of the hard disk box 100 is reduced, the space limitation of the hard disk box 100 is reduced, and the use is convenient for users.

In some embodiments, referring to fig. 1 to 4, the hard disk cartridge 100 further includes a protective housing 30, the protective housing 30 is provided with a receiving opening (not shown) adapted to the metal housing 20, and the metal housing 20 is disposed in the protective housing 30 through the receiving opening, so that a hard disk disposed in the hard disk cartridge 100 can be protected, thereby reducing the possibility of damaging or losing data in the hard disk, and improving the user experience.

Preferably, the protective shell 30 may be made of a silicone material, so as to have good shock absorption and protection. Of course, the specific material of the protective case 30 is not limited, and may be rubber, for example, so long as it can protect the protective case.

Preferably, the outer surface of the metal shell 20 may be provided with a first guiding structure 21, the inner wall surface of the protective shell 30 may be provided with a second guiding structure adapted to the first guiding structure 21, and the extending directions of the first guiding structure 21 and the second guiding structure are consistent with the direction in which the metal shell 20 is inserted into the protective shell 30. The protective shell 30 and the metal shell 20 are respectively provided with a corresponding guiding mechanism, so that a user can conveniently sleeve or take out the protective shell 30 on the metal shell 20, dislocation of the metal shell 20 is avoided, and the use is very convenient.

Preferably, referring to fig. 4, the first guiding structure 21 and the second guiding structure (not shown) may have undulating surfaces, so that when the metal shell 20 is inserted into the protective shell 30, the first guiding structure 21 and the second guiding structure abut against each other, so as to realize guiding the insertion direction of the metal shell 20, thereby reducing the possibility of dislocation between the metal shell 20 and the protective shell 30, and facilitating the use of the user. Further, the first guiding structure 21 extends from one end of the metal shell 20 to the other end of the metal shell 20, and/or the second guiding structure extends from one end of the protecting shell 30 to the other end of the protecting shell 30, so that the first guiding structure 21 and the second guiding structure can both play a guiding role in the whole plugging process of the metal shell 20.

Of course, the specific structures of the first guide structure 21 and the second guide structure in the present utility model are not limited to this, and the above-mentioned preferred embodiments of the present utility model are, for example, in other embodiments, the first guide structure 21 and the second guide structure may be a matched clamping block and clamping groove structure, and when the metal shell 20 is inserted into the protective shell 30, the clamping block moves in the clamping groove, so as to guide the insertion direction of the metal shell 20.

Preferably, the surface of the protective housing 30 away from the metal shell 20 (i.e., the surface of the protective housing 30 facing the outside) is provided with a protrusion 31, and the protrusion 31 not only can increase the hardness of the protective housing 30 and improve the crash-proof performance of the hard disk cartridge 100, but also is easy to hold by a user, increases the friction of the protective housing 30 to the outside, and reduces the possibility of the hard disk cartridge 100 falling.

Preferably, the protruding parts 31 may be provided on both sides of the protective case 30 (both surfaces close to the left side plate 14 and the right side plate 15 of the bottom case 10) and the top surface (surface far from the bottom case 10) and the bottom surface (surface close to the bottom case 10) of the protective case 30, respectively, so that when the hard disk cartridge 100 is dropped, the protruding parts 31 having a higher hardness are first contacted with the outside, thereby protecting other portions of the protective case 30, and thus protecting the hard disk in the hard disk cartridge 100.

In some embodiments, referring to fig. 2 and 5, the hard disk cartridge 100 further includes an end cap 50, the end cap 50 is disposed at an end of the bottom shell 11 (the rear plate 13) away from the first transfer opening 121, and the end cap 50 closes the accommodating opening, so that a user can insert or remove the bottom shell 10 from the metal shell 20 while protecting an end of the bottom shell 10 adjacent to the accommodating opening.

Preferably, the end cover 50 is provided with a connection block 51, the rear plate 13 is provided with a connection hole 131 facing the connection block 51, one end of the connection block 51 is bent and extended with a second clamping portion 511, and after the second clamping portion 511 passes through the connection hole 131, the second clamping portion 511 and the end cover 50 can clamp and clamp the rear plate 13 together, so as to realize clamping of the end cover 50 to the bottom shell 10.

Further, the rear plate 13 may have a third clamping portion 132 extending from one side of the connection hole 131, and after the second clamping portion 511 passes through the connection hole 131, the second clamping portion 511 is clamped to the third clamping portion 132, so as to further improve the firmness of the end cover 50 clamped to the bottom shell 10.

In some embodiments, referring to fig. 2, 3 and 6, the hard disk cartridge 100 further includes a plurality of light source elements 60, wherein the light source elements 60 are connected to the circuit board 41, and the light source elements 60 are enclosed around the periphery of the hard disk area 413, so that the hard disk cartridge 100 can emit light, and can provide illumination when a user sets a hard disk, and the light source elements 60 can also be used to transmit usage information of the hard disk cartridge 100, for example, when a hard disk is set and connected to the hard disk cartridge 100, at least one of the light source elements 60 emits light to prompt the user; for example, when the external device is connected to the hard disk, at least one of the light source units 60 emits light to prompt the user, and of course, the application of the light source unit 60 is not limited thereto, and may be adjusted according to the use requirement in practical application.

Further, the metal case 20 may be provided with a light-transmitting opening 22 facing the plurality of light source members 60, thereby facilitating the user's observation of light.

In some embodiments, the hard disk cartridge 100 further includes a light-transmitting member 70 disposed at the light-transmitting opening 22, so that light can be transmitted, and the hard disk can be better protected from the sharp protrusion from the light-transmitting opening 22 into the hard disk cartridge 100.

Preferably, the metal shell 20 extends toward the light-transmitting opening 22 to form a clamping block 23 for clamping with the light-transmitting member 70, so as to realize clamping with the light-transmitting member 70.

Further, the light-transmitting member 70 extends outward to form a fourth clamping portion 71, the metal shell 20 is provided with a clamping groove 24 corresponding to the fourth clamping portion 71, and the fourth clamping portion 71 is clamped in the clamping groove 24, so that the clamping of the light-transmitting member 70 is firmer.

In some embodiments, referring to fig. 2 and 7, the limiting assembly 80 is disposed in the accommodating groove 16 and abuts against the circuit board 41, so that the circuit board 41 can be installed more stably, and when the hard disk cartridge 100 falls or is impacted, the limiting assembly 80 can reduce the shake of the circuit board 41, so as to protect the hard disk installed on the circuit board 41.

Preferably, the circuit board 41 has an upper surface (a surface far away from the bottom plate 11 of the bottom case 10) and a lower surface (a surface close to the bottom plate 11 of the bottom case 10), the limiting assembly 80 includes an upper limiting block 81 and a lower limiting block 82, the upper limiting block 81 is disposed on a groove side surface 161 of the accommodating groove 16, the upper limiting block 81 is abutted to the upper surface of the circuit board 41, the lower limiting block 82 is disposed on a groove bottom surface 162 of the accommodating groove 16, and the lower limiting block 82 is abutted to the lower surface of the circuit board 41, so as to reduce the possibility of up-and-down shaking of the circuit board 41, and further protect the circuit board 41 and the hard disk.

Preferably, the limiting assembly 80 further includes a limiting post 83, the limiting post 83 is disposed on a bottom 162 of the accommodating groove 16, the circuit board 41 is provided with a limiting hole 414, the limiting post 83 is disposed in the limiting hole 414, or the limiting post 83 abuts against a side surface of the circuit board 41, thereby reducing the possibility of left-right shaking of the circuit board 41, and further protecting the circuit board 41 and the hard disk.

Preferably, the upper limiting block 81, the lower limiting block 82 and the limiting post 83 are integrally formed with the bottom shell 10, and the lower limiting block 82 may be integrally formed with the limiting post 83, which is convenient for manufacturing.

In some embodiments, the hard disk cartridge 100 further includes a shock absorbing structure, which may include a shock absorbing material such as an elastic pad, cotton, rubber, and a shock absorbing spring, and the shock absorbing structure may be disposed at four corners in the protective case 30, the protruding portion 31, or the surface of the protective case 30, and the shock absorbing structure may play a role in shock absorption when the hard disk cartridge 100 falls or is impacted, thereby protecting the hard disk disposed in the hard disk cartridge 100.

The utility model provides a hard disk cartridge 100, which comprises a bottom shell 10, a hard disk switching module 40 and a metal shell 20. The bottom chassis 10 is provided with a receiving groove 16 and a first transfer opening 121 communicating with the receiving groove 16. The hard disk adapting module 40 is arranged in the accommodating groove 16, the hard disk adapting module 40 comprises a circuit board 41, a connector 42 and an adapter 43, the circuit board 41 is fixed in the accommodating groove 16 through a limiting component 80, the connector 42 and the adapter 43 are connected with the circuit board 41, the circuit board 41 is provided with a first end 411 and a second end 412 which are opposite, the first end 411 of the circuit board 41 is close to the first adapting opening 121, the connector 42 is laminated at the first end 411 of the circuit board 41, an interface of the connector 42 for being connected with a hard disk faces the second end 412 of the circuit board 41, the adapter 43 is laminated at the first end 411 of the circuit board 41, and one end of the adapter 43 is exposed to the first adapting opening 121. The metal shell 20 is sleeved on the bottom shell 10. Compared with the prior art, the utility model shortens the length of the hard disk cartridge 100, reduces the space limitation of the hard disk cartridge 100 and can better meet the use requirement of users by stacking the connector 42 and the adapter 43 on the circuit board 41 and reasonably planning the positions of the connector 42, the adapter 43 and the hard disk to be arranged on the circuit board.

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, or alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A hard disk cartridge, comprising:

the bottom shell is provided with a containing groove and a first transfer opening communicated with the containing groove;

the hard disk transfer module is arranged in the accommodating groove and comprises a circuit board, a connector and an adapter, wherein the circuit board is fixed in the accommodating groove through a limiting assembly, the connector and the adapter are connected with the circuit board, the circuit board is provided with a first end and a second end which are opposite, the first end of the circuit board is close to the first transfer opening, the connector is laminated at the first end of the circuit board, an interface of the connector for being connected with the hard disk faces the second end of the circuit board, the adapter is laminated at the first end of the circuit board, and one end of the adapter is exposed to the first transfer opening;

the metal shell is sleeved on the bottom shell.

2. The hard disk cartridge of claim 1, wherein the connector and adapter are disposed along a width direction of the circuit board.

3. The hard disk cartridge of claim 2, wherein the connector has a first side and a second side opposite to each other, the first side of the connector is adjacent to the first transfer opening, the circuit board is provided with a hard disk area for supporting a hard disk at the second side of the connector, and the interface of the connector is provided at one side of the hard disk area.

4. A hard disk cartridge according to any one of claims 1 to 3, wherein the circuit board has an upper surface and a lower surface opposite to each other, the limiting assembly comprises an upper limiting block and a lower limiting block, the upper limiting block is disposed on a side surface of the accommodating groove, the upper limiting block is abutted to the upper surface of the circuit board, the lower limiting block is disposed on a bottom surface of the accommodating groove, and the lower limiting block is abutted to the lower surface of the circuit board.

5. A hard disk cartridge according to any one of claims 1 to 3, wherein the limit assembly further comprises a limit post, the limit post is disposed on a bottom surface of the accommodating groove, the circuit board is provided with a limit hole, and the limit post is disposed in the limit hole.

6. The hard disk cartridge of claim 3, further comprising a plurality of light source members, wherein the plurality of light source members are connected to the circuit board, and wherein the plurality of light source members are enclosed around the periphery of the hard disk area; the metal shell is provided with light transmission openings facing the light source pieces.

7. The hard disk cartridge of claim 6, further comprising a light transmissive member disposed at the light transmissive opening; the metal shell extends to the light transmission opening and is provided with a clamping block for clamping the light transmission piece.

8. The hard disk cartridge of claim 1, wherein a first opening is provided on a surface of the bottom case facing the metal case, a first clamping portion extends into the first opening from one end of the first opening, a second opening is provided on the metal case corresponding to the first clamping portion, and the first clamping portion is clamped to the second opening.

9. A hard disk cartridge according to any one of claims 1 to 3, further comprising a protective case provided with a receiving opening adapted to the metal case, the metal case being provided in the protective case through the receiving opening.

10. The hard disk cartridge of claim 9, further comprising an end cap disposed at an end of the bottom shell remote from the first transfer opening, the end cap closing the receiving opening.