CN108255252B

CN108255252B - Hard disk tray and hard disk bracket assembly

Info

Publication number: CN108255252B
Application number: CN201611235621.3A
Authority: CN
Inventors: 张祐铨
Original assignee: Giga Byte Technology Co Ltd
Current assignee: Technical Steel Technology Co ltd
Priority date: 2016-12-28
Filing date: 2016-12-28
Publication date: 2021-04-20
Anticipated expiration: 2036-12-28
Also published as: CN108255252A

Abstract

The invention discloses a hard disk tray and a hard disk bracket assembly, wherein the hard disk tray is suitable for accommodating a hard disk, two sides of the hard disk comprise a plurality of screw holes, and the hard disk tray comprises a body and a cover body. The body comprises two body side walls and a plurality of fixing pieces which are protruded out of the two body side walls and correspond to at least one part of the screw holes. The cover body is pivoted to the body and comprises two cover body side walls. When the hard disk is placed on the hard disk tray, the fixing pieces extend into at least part of the screw holes of the hard disk, and when the cover body is closed on the body, the two cover body side walls are positioned on the outer sides of the two body side walls to limit the two body side walls from expanding outwards. The invention further provides a hard disk bracket assembly.

Description

Hard disk tray and hard disk bracket assembly

Technical Field

The present invention relates to a hard disk tray and a hard disk tray assembly, and more particularly, to a hard disk tray and a hard disk tray assembly capable of fixing a hard disk without screws.

Background

Generally, to mount a hard disk in a server, the hard disk is usually locked to a hard disk tray (HDD track), and then a plurality of hard disk trays are fixed to a hard disk rack (HDD rack) to be mounted in the server together. However, since the number of hard disks disposed in the server is large, the locking and detaching process is complicated when the hard disks are assembled, replaced or repaired by the operator.

In addition, a new specification server, also called an Open Computing Program (OCP) server, has been developed, which requires hot swap (hot swap) for a hard disk, however, if the hard disk needs to be removed by first removing screws, it is quite inconvenient to perform the hot swap function.

Disclosure of Invention

The invention provides a hard disk tray, which can fix a hard disk to the hard disk tray without using screws and can effectively improve the efficiency of assembling and disassembling the hard disk.

The invention provides a hard disk bracket assembly, wherein a hard disk tray can be fixed to a hard disk bracket in a non-locking mode.

The invention relates to a hard disk tray which is suitable for accommodating a hard disk, wherein two sides of the hard disk comprise a plurality of screw holes, and the hard disk tray comprises a body and a cover body. The body comprises two body side walls and a plurality of fixing pieces which are protruded out of the two body side walls and correspond to at least one part of the screw holes. The cover body is pivoted to the body and comprises two cover body side walls. When the hard disk is placed on the hard disk tray, the fixing pieces extend into at least part of the screw holes of the hard disk, and when the cover body is closed on the body, the two cover body side walls are positioned on the outer sides of the two body side walls to limit the two body side walls from expanding outwards.

In an embodiment of the invention, a hardness of the cover is greater than a hardness of the body.

In an embodiment of the invention, the hard disk tray further includes an elastic member disposed between the body and the cover and pivotally connected to the body near the cover.

In an embodiment of the invention, one of the body side walls and the corresponding cover side wall includes a pivot hole, and the other includes a pivot shaft passing through the pivot hole.

In an embodiment of the invention, each of the body side walls includes a first body engaging member extending in a first direction and bending in a second direction, the hard disk tray is adapted to be fixed to a hard disk rack together with the hard disk, the hard disk rack includes a plurality of first hard disk rack engaging members corresponding to the first body engaging members, and the body is adapted to be hooked to the first hard disk rack engaging members through the first body engaging members to limit the body from moving in a direction opposite to the first direction and in the second direction relative to the hard disk rack, wherein the first direction is perpendicular to the second direction.

In an embodiment of the invention, each of the cover sidewalls includes a first cover engaging member, the hard disk rack includes a plurality of second hard disk rack engaging members corresponding to the first cover engaging members, and when the body is disposed on the hard disk rack and the cover is closed on the body, the first cover engaging members engage with the second hard disk rack engaging members to limit the cover from moving in a direction opposite to the second direction relative to the hard disk rack.

In an embodiment of the invention, the body includes a second body engaging member, the cover includes a second cover engaging member corresponding to the second body engaging member, and the cover is fixed to the body by the second cover engaging member engaging with the second body engaging member.

The invention relates to a hard disk bracket assembly which is suitable for being arranged in a server together with a hard disk. The hard disk frame comprises a hard disk frame bottom surface, a plurality of first hard disk frame clamping pieces and a plurality of second hard disk frame clamping pieces, wherein the first hard disk frame clamping pieces and the second hard disk frame clamping pieces are arranged on the hard disk frame bottom surface. The hard disk tray is detachably fixed on the hard disk rack, is suitable for bearing a hard disk and comprises a body and a cover body. The body comprises two body side walls, wherein each body side wall comprises a first body clamping piece extending towards a first direction and bending towards a second direction. The cover body is pivoted to the body and comprises two cover body side walls, wherein each cover body side wall comprises a first cover body clamping piece. The body is hooked on the first hard disk frame clamping pieces through the first body clamping pieces, so that the body is limited from moving towards the direction opposite to the first direction and towards the second direction relative to the hard disk frame, and when the cover body is closed on the body, the first cover body clamping pieces are hooked on the second hard disk frame clamping pieces, so that the cover body is limited from moving towards the direction opposite to the second direction relative to the hard disk frame.

In an embodiment of the invention, the hard disk rack includes a plurality of fixing structures respectively fixed on the bottom surface of the hard disk rack and located at two sides of the hard disk tray to form a guide rail, and the first hard disk rack engaging elements and the second hard disk rack engaging elements are respectively formed on the fixing structures.

In an embodiment of the invention, two sides of the hard disk include a plurality of screw holes, the main body includes a plurality of fixing members protruding from the two main body side walls and corresponding to at least a part of the screw holes, when the hard disk is placed on the hard disk tray, the fixing members extend into at least a part of the screw holes of the hard disk, and when the cover is closed on the main body, the two cover side walls are located outside the two main body side walls to limit the two main body side walls from expanding outward.

Based on the above, the hard disk tray of the present invention can extend into the corresponding screw holes on the hard disk through the fixing members on the two side walls of the main body, and when the cover is closed on the main body, the two side walls of the cover are located outside the two side walls of the main body to limit the two side walls of the main body from expanding outwards, so that the fixing members are maintained in the corresponding screw holes on the hard disk to fix the hard disk on the hard disk tray. In addition, the body of the hard disk tray assembly can be hooked with the first hard disk rack clamping piece of the hard disk rack through the first body clamping piece so as to limit the body to move in a direction opposite to the first direction and a direction opposite to the second direction relative to the hard disk rack, and when the cover body is closed on the body, the first cover body clamping piece is hooked with the second hard disk rack clamping piece so as to limit the cover body to move in the direction opposite to the second direction relative to the hard disk rack and clamp the hard disk tray on the hard disk rack.

In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 and fig. 2 are schematic diagrams illustrating various views of a hard disk tray according to an embodiment of the invention when a cover is closed to a main body.

Fig. 3 to 5 are schematic diagrams of various viewing angles of the hard disk tray of fig. 1 when the cover is opened.

Fig. 6 is an exploded view of a hard disk and the hard disk tray of fig. 1.

FIG. 7 is a schematic view of a hard disk tray of a hard disk carrier assembly not yet mounted to a hard disk carrier in accordance with an embodiment of the present invention.

Fig. 8 is a schematic view of the hard disk tray assembly of fig. 7 mounted to a hard disk shelf with a cover of the hard disk tray not yet closed to the main body.

Fig. 9 is a schematic view of the hard disk tray assembly of fig. 7 mounted to a hard disk rack with a cover of the hard disk tray closed to a main body.

Wherein the reference numerals are as follows:

d1: a first direction

D2: second direction

10: hard disk

12: screw hole

20: hard disk bracket assembly

50: hard disk rack

52: bottom surface of hard disk rack

54. 55: fixing structure

56: first hard disk frame fastener

58: second hard disk rack fastener

100: hard disk tray

110: body

111: body top

112: body side wall

113: fixing piece

114: first body fastener

115: connecting wall

116: second body fastener

117: convex rib

118: pivot shaft

120: cover body

121: top of the cover body

122: cover body side wall

124: first cover body fastener

126: second cover body fastener

128: pivot hole

130: elastic piece

Detailed Description

The hard disk tray 100 of the present embodiment is adapted to have a hard disk 10 (shown in fig. 6) fixed thereon, and is mounted to a hard disk rack (shown in fig. 7) of a server (not shown) together with other hard disk trays 100. In the embodiment, the hard disk tray 100 is a hard disk tray of 2.5 inches hard disk, but in other embodiments, the hard disk tray 100 may also be a hard disk tray of 3.5 inches hard disk, and the size of the hard disk tray 100 may be adjusted corresponding to the size of the hard disk 10 to be fixed. Generally, the hard disk 10 includes a plurality of screw holes 12 on both sides of the hard disk 10. The hard disk tray 100 of the present embodiment utilizes the design of the hard disk 10 with screw holes 12 at specific positions to fix the hard disk 10 without screws, so as to provide more convenient and quick use for operators, which will be further described below.

Fig. 1 and fig. 2 are schematic diagrams illustrating various views of a hard disk tray according to an embodiment of the invention when a cover is closed to a main body. Fig. 3 to 5 are schematic diagrams of various viewing angles of the hard disk tray of fig. 1 when the cover is opened. Fig. 6 is an exploded view of a hard disk and the hard disk tray of fig. 1.

Referring to fig. 1 to 6, the hard disk tray 100 of the present embodiment includes a main body 110 and a cover 120. The body 110 includes a body top 111, two body sidewalls 112, a plurality of fasteners 113, and a connecting wall 115. The body top 111 and the connecting wall 115 are connected to the two body sidewalls 112, respectively. The fixing members 113 respectively protrude from the two body sidewalls 112 and correspond to at least a portion of the screw holes 12 of the hard disk 10.

Each body sidewall 112 includes at least a first body engagement member 114 and a second body engagement member 116. The first body engaging member 114 is located below the body sidewall 112, extends in a first direction D1 (i.e., below) and bends in a second direction D2 for being fixed to the hard disk rack 50. The second body engaging member 116 is located at the front end of the body 110, and in the present embodiment, the second body engaging member 116 is a cantilever-type hook.

The cover 120 is pivotally connected to the body 110 and includes a cover top 121 and two cover sidewalls 122 connected to the cover top 121. One of each of the body side walls 112 and the corresponding cover side wall 122 includes a pivot hole 128, and the other includes a pivot shaft 118 passing through the pivot hole 128. For example, in the present embodiment, the body side wall 112 includes a pivot 118, and the cover side wall 122 includes a pivot hole 128 corresponding to the pivot 118, so that the cover 120 can be pivotally connected to the body 110 to rotate relative to the body 110.

Each of the lid sidewalls 122 includes a first lid latch 124 and a second lid latch 126. In the embodiment, the first cover engaging member 124 is a concave hole recessed in the edge of the cover side wall 122, and can be used to fix to the hard disk frame 50. The second lid engaging member 126 corresponds to the second body engaging member 116, and in this embodiment, the second lid engaging member 126 is a cross bar capable of engaging with the hook-type second body engaging member 116. Therefore, the cover 120 is fixed to the body 110 by the engagement of the second cover engaging member 126 and the second body engaging member 116.

In the present embodiment, if the cover 120 is to be opened, the second body engaging member 116 is released from the second cover engaging member 126 by moving the second body engaging member 116 in the second direction D2, and the cover 120 is lifted and moved from the position shown in fig. 1 to the position shown in fig. 3. In the present embodiment, the hard disk tray 100 further includes at least one elastic member 130, such as two elastic members 130, disposed between the body 110 and the cover 120 and pivoted to the body 110 near the cover 120. Therefore, when the second body engaging member 116 is disengaged from the second cover engaging member 126, the cover 120 is automatically lifted relative to the body 110. Of course, in other embodiments, the cover 120 may be manually lifted by the user, and the elastic member 130 may be omitted.

In the hard disk tray 100 of this embodiment, the fixing members 113 on the two body side walls 112 can extend into the corresponding screw holes 12 on the hard disk 10, when the hard disk 10 is placed on the hard disk tray 100, the fixing members 113 extend into at least part of the screw holes 12 of the hard disk 10, and when the cover 120 is closed on the body 110, the two cover side walls 122 are located outside the two body side walls 112 to limit the two body side walls 112 from expanding outward, so that the fixing members 113 on the two body side walls 112 can be maintained in the corresponding screw holes 12 on the hard disk 10, and the hard disk 10 can be fixed on the hard disk tray 100. Therefore, the hard disk tray 100 of the present embodiment can fix the hard disk 10 in a screw-free manner, so that the mounting and dismounting of the hard disk tray by an operator are more convenient.

In the embodiment, a plurality of ribs 117 (shown in fig. 3) are disposed on the outer sides of the two body side walls 112 of the body 110, when the cover 120 is closed on the body 110, the two cover side walls 122 of the cover 120 contact the ribs 117 of the two body side walls 112 to slightly press the two body side walls 112 of the body 110, so that the fixing member 113 further extends into the screw hole 12 of the hard disk 10 to provide a better fixing force. In other embodiments, the protruding rib 117 may be replaced by a protruding point on the outer side of the body sidewall 112, and the protruding rib 117 and the protruding point are designed to enable the cover 120 to slightly push the body sidewall 112 inward in the process of closing the cover on the body 110 with less friction.

In the present embodiment, the hardness of the cover 120 is greater than that of the body 110, for example, the material of the body 110 may be plastic, and the material of the cover 120 may be metal, but the materials of the body 110 and the cover 120 are not limited thereto. The hardness of the cover 120 is greater than that of the body 110, so that the side surface of the body 110 can be easily pressed by the side surface of the cover 120 to be slightly retracted in the process of closing the cover 120 on the body 110. Alternatively, in other embodiments, even if the side surface of the body 110 is not pushed inward by the cover 120 when the cover 120 is closed on the body 110 (i.e., the cover sidewall 122 does not press the body sidewall 112 but only contacts the body sidewall 112 and is located outside the body sidewall 112), the side surface of the body 110 may reduce the degree of outward deformation of the side surface of the body 110 because the harder side surface of the cover 120 is outside.

Of course, in other embodiments, the hardness of the cover 120 and the body 110 may be the same, for example, the cover 120 and the body 110 may be made of the same or similar materials, and the effect of reducing the outward deformation of the side surface of the body 110 is achieved by the structural design.

FIG. 7 is a schematic view of a hard disk tray of a hard disk carrier assembly not yet mounted to a hard disk carrier in accordance with an embodiment of the present invention. Note that, the hard disk tray 100 of the hard disk tray assembly 20 of the present embodiment is exemplified by the hard disk tray 100 of fig. 1, and therefore, the reference numerals of the above embodiment are used, but the form of the hard disk tray 100 of the hard disk tray assembly 20 is not limited to the above.

Referring to fig. 7, the hard disk tray assembly 20 of the present embodiment includes a hard disk rack 50 and at least one hard disk tray 100, wherein the hard disk tray 100 is detachably fixed to the hard disk rack 50. The hard disk rack 50 includes a hard disk rack bottom surface 52 and a plurality of securing

structures

54, 55 disposed on the hard disk rack bottom surface 52. As can be seen in fig. 7, the hard disk rack 50 includes three rows of fixing

structures

54, 55, and in the two left and right rows of fixing structures 55, each fixing structure 55 includes at least one first hard disk rack engaging member 56, and more specifically, each fixing structure 55 includes two first hard disk rack engaging members 56. The first hard disk rack engaging member 56 is a structure that can engage with the first body engaging member 114, such as a plate that is spaced apart from the bottom surface 52 of the hard disk rack and can allow the hook to extend into. In the centrally located row of securing structures 54, each securing structure 54 includes at least a first hard disk shelf engagement 56 and a second hard disk shelf engagement 58. More specifically, each securing structure 54 includes two first hard disk shelf engagement members 56 and a second hard disk shelf engagement member 58. The second hard disk holder engaging member 58 is a structure that allows the first lid engaging member 124 to engage with it, such as a protrusion protruding in a horizontal direction. Of course, the form of the first and second hard disk

shelf engagement members

56, 58 is not so limited.

In this embodiment, the three rows of fixing

structures

54, 55 can be used to fix two rows of hard disk trays 100, that is, each hard disk tray 100 will cooperate with two fixing

structures

54, 55 located on two adjacent rows and located between the two corresponding fixing

structures

54, 55. As can be seen from fig. 7, the two adjacent rows of fixing

structures

54, 55 form guide tracks for the hard disk tray 100 to slide into and be fixed, and the manner in which the hard disk tray 100 is fixed to the hard disk rack 50 will be further described below.

In addition, in the present embodiment, each row takes 5

fixing structures

54 and 55 as an example, so that the hard disk rack 50 of the present embodiment can fix 10 hard disk trays 100 thereon in total. In the conventional Open Computing Program (OCP) server, the hard disk rack 50 can only accommodate 2-4 hard disk trays 100, and the structure of the embodiment can accommodate more hard disk trays 100 in the same space, thereby increasing the data storage capacity of the server. Of course, the number of the fixing

structures

54, 55 on the hard disk rack 50 can be adjusted according to the requirement, and is not limited thereto.

In addition, in the present embodiment, the first hard disk rack engaging elements 56 are respectively formed on the fixing

structures

54 and 55, the second hard disk rack engaging elements 58 are respectively formed on the fixing structures 54, and the fixing

structures

54 and 55 are fixed to the hard disk rack bottom surface 52 in a locking manner. However, in other embodiments, the first hard disk rack engaging member 56 and the second hard disk rack engaging member 58 may extend from the hard disk rack bottom surface 52, for example, a broken hole is formed on the hard disk rack bottom surface 52, and a portion surrounded by the broken hole is bent to form a structure standing on the hard disk rack bottom surface 52, so as to serve as the first hard disk rack engaging member 56 and the second hard disk rack engaging member 58 for engaging the body 110 and the cover 120 of the hard disk tray 100. Alternatively, in other embodiments, the first and second hard disk

shelf engagement members

56, 58 may be integrally formed or otherwise formed on the hard disk shelf bottom surface 52.

Fig. 8 is a schematic view of the hard disk tray assembly of fig. 7 mounted to a hard disk rack and a cover of the hard disk tray not yet closed to the body 110. Fig. 9 is a schematic view of the hard disk tray assembly of fig. 7 mounted to a hard disk rack with a cover of the hard disk tray closed to a main body. Referring to fig. 7 to 9, when the hard disk tray 100 is to be mounted on the hard disk rack 50, the hard disk tray 100 is firstly slid into the fixing

structures

54 and 55 along the second direction D2 of fig. 7, so that the four first body engaging pieces 114 on the side surfaces of the two bodies 110 of the hard disk tray 100 are respectively engaged with the corresponding first hard disk rack engaging pieces 56, and the position shown in fig. 8 is reached, at this time, the cover 120 of the hard disk tray 100 is not closed on the body 110. Next, the cover 120 of the hard disk tray 100 is closed on the main body 110, in the embodiment, the first cover engaging member 124 recessed on the edge of the cover side wall 122 is gradually engaged with the second hard disk rack engaging member 58 in the form of a convex pillar along with the closing process of the cover 120, and the position is shown in fig. 9.

When the hard disk tray 100 is fixed to the hard disk rack 50 as shown in fig. 9, the first body engaging pieces 114 engage with the first hard disk rack engaging pieces 56 to limit the body 110 from moving in a direction opposite to the first direction D1 (i.e., above in fig. 7) relative to the hard disk rack 50, and the first cover engaging pieces 124 engage with the second hard disk rack engaging pieces 58 to limit the cover 120 from moving in a direction opposite to the second direction D2 (i.e., to the right in fig. 7) and the second direction D2 (i.e., to the left in fig. 7) relative to the hard disk rack 50 when the cover 120 is closed on the body 110. Therefore, the hard disk tray 100 of the present embodiment can be fixed to the hard disk frame 50 without using screws, thereby increasing the convenience of assembly and disassembly.

It should be noted that, since the first lid engaging member 124 is a concave hole recessed in the edge of the lid sidewall 122, in the process of closing the lid 120 on the body 110, the convex pillar-shaped second hard disk holder engaging member 58 will gradually extend into the first lid engaging member 124 along the edge of the first lid engaging member 124, in this process, the lid 120 is closed on the body 110 along the clockwise or counterclockwise direction, and the first lid engaging member 124 will also cause the lid 120 to slightly move toward the second direction D2 along the outer edge of the second hard disk holder engaging member 58 in the closing process. That is, before and after the cover 120 is closed on the body 110, the position of the hard disk tray 100 relative to the hard disk rack 50 is slightly moved in the second direction D2.

Therefore, after the cover 120 is closed on the body 110, the first body engaging member 114 may further extend into the first hard disk rack engaging member 56 in the second direction D2, and the first body engaging member 114 may contact the first hard disk rack engaging member 56 to restrict the body 110 from moving in the second direction D2 (i.e., to the right in fig. 7) relative to the hard disk rack 50. That is, when the cover 120 is not closed on the body 110, the first body engaging member 114 only slightly engages with the first hard disk rack engaging member 56, and the body 110 is restricted from moving in a direction opposite to the first direction D1. After the cover 120 is closed on the body 110, the first body engaging member 114 not only limits the body 110 from moving in the direction opposite to the first direction D1, but also limits the body 110 from moving in the second direction D2 relative to the hard disk rack 50.

On the bottom surface 52 of the hard disk rack 50, a connector (not shown) may be disposed at a front end of the hard disk tray 100 corresponding to the closed cover 120, and after the closed cover 120 is closed, the hard disk tray 100 is moved slightly to the second direction D2 to be closer to the connector, so that the hard disk 10 in the hard disk tray 100 can be directly inserted into the connector on the bottom surface 52 of the hard disk rack after the closed cover 120 is closed.

Similarly, when the hard disk 10 in the hard disk tray 100 is to be removed from the connector, the cover 120 is automatically lifted relative to the main body 110 by only removing the second main body engaging member 116, and during the lifting process of the cover 120, the second hard disk rack engaging member 58 in the form of a convex column is gradually removed from the first cover engaging member 124 along the edge of the first cover engaging member 124, so that the cover 120 slightly moves away from the second direction D2, and the hard disk 10 can move along with the first cover engaging member 124 and be separated from the connector. That is, the hard disk tray assembly 20 of the present embodiment can complete the hot plug operation of the hard disk 10 during the closing and opening operations of the cover 120, and is suitable for an Open Computing Program (OCP) server, and further increases the convenience of the user.

In summary, the fixing members on the two side walls of the hard disk tray of the present invention can extend into the corresponding screw holes on the hard disk, and when the cover is closed on the hard disk tray, the two side walls of the cover are located outside the two side walls of the hard disk tray to prevent the two side walls of the hard disk tray from expanding outward, so that the fixing members are maintained in the corresponding screw holes on the hard disk tray to fix the hard disk on the hard disk tray. In addition, the body of the hard disk tray assembly can be hooked with the first hard disk rack clamping piece of the hard disk rack through the first body clamping piece so as to limit the body to move in a direction opposite to the first direction and a direction opposite to the second direction relative to the hard disk rack, and when the cover body is closed on the body, the first cover body clamping piece is hooked with the second hard disk rack clamping piece so as to limit the cover body to move in the direction opposite to the second direction relative to the hard disk rack and clamp the hard disk tray on the hard disk rack.

Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a hard disk tray, is suitable for an holding hard disk, and the both sides of this hard disk include a plurality of screw, and this hard disk tray includes:

the body comprises two body side walls and a plurality of fixing pieces which protrude out of the two body side walls and correspond to at least one part of the screw holes; and

a cover body pivoted to the body and including two cover body side walls; and

the elastic piece is arranged between the body and the cover body and is close to the cover body and pivoted to the body;

when the hard disk is placed on the hard disk tray, the fixing pieces extend into at least part of the screw holes of the hard disk, and when the cover body is closed on the body, the two cover body side walls are positioned on the outer sides of the two body side walls to limit the two body side walls from expanding outwards.

2. The hard disk tray of claim 1, wherein the cover has a hardness greater than that of the body.

3. The hard disk tray as claimed in claim 1, wherein one of each of the body side walls and the corresponding cover side wall includes a pivot hole, and the other includes a pivot shaft passing through the pivot hole.

4. The hard disk tray of claim 1, wherein each of the body sidewalls comprises a first body engaging member extending in a first direction and bending in a second direction, the hard disk tray is adapted to be fixed to a hard disk rack together with the hard disk, the hard disk rack comprises a plurality of first hard disk rack engaging members corresponding to the plurality of first body engaging members, the body is adapted to engage with the plurality of first hard disk rack engaging members through the plurality of first body engaging members to restrict the body from moving in a direction opposite to the first direction and in the second direction with respect to the hard disk rack, wherein the first direction is perpendicular to the second direction.

5. The hard disk tray of claim 4, wherein each of the lid side walls comprises a first lid snap, the hard disk shelf comprises a plurality of second lid snap corresponding to the plurality of first lid snap, and the plurality of first lid snap engage with the plurality of second lid snap when the body is disposed on the hard disk shelf and the lid is closed to the body, so as to restrict the lid from moving relative to the hard disk shelf in a direction opposite to the second direction.

6. The hard disk tray of claim 1, wherein the body includes a second body catch, the cover includes a second cover catch corresponding to the second body catch, the cover being secured to the body by engagement of the second cover catch with the second body catch.

7. A hard disk carrier assembly adapted to be disposed in a server with a hard disk, the hard disk carrier assembly comprising:

the hard disk frame comprises a hard disk frame bottom surface, and a plurality of first hard disk frame clamping pieces and a plurality of second hard disk frame clamping pieces which are arranged on the hard disk frame bottom surface; and

a hard disk tray, detachably is fixed in this hard disk frame, and this hard disk tray is suitable for bearing this hard disk, and includes:

the body comprises two body side walls, wherein each body side wall comprises a first body clamping piece which extends towards a first direction and is bent towards a second direction; the cover body is pivoted to the body and comprises two cover body side walls, wherein each cover body side wall comprises a first cover body clamping piece; and

when the cover body is closed on the body, the first cover body clamping pieces are hooked on the second hard disk frame clamping pieces so as to limit the cover body from moving in the direction opposite to the second direction relative to the hard disk frame.

8. The hard disk carrier assembly as claimed in claim 7, wherein the hard disk carrier comprises a plurality of fixing structures respectively fixed on the bottom surface of the hard disk carrier and located at both sides of the hard disk tray to form a guide rail, the plurality of first hard disk carrier engaging members and the plurality of second hard disk carrier engaging members are respectively formed on the plurality of fixing structures.

9. The hard disk drive bracket assembly of claim 7, wherein the hard disk drive includes a plurality of screw holes on both sides thereof, the body includes a plurality of fasteners protruding from the two body side walls and corresponding to at least a portion of the plurality of screw holes, the plurality of fasteners extend into at least a portion of the plurality of screw holes of the hard disk drive when the hard disk drive is placed on the hard disk drive tray, and the two cover side walls are located outside the two body side walls when the cover is closed to the body to restrict the two body side walls from spreading.