Hard disk carrier plate and testing apparatus
Patent Information
- Application Number
- CN202521346552.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-06-27
AI Technical Summary
[0003]而常规的硬盘承载板由于结构较脆弱,在受到外界作用力的时候很容易出现断裂或破损,这样就会直接影响硬盘的存放,以及后续操作上的安全
[0016]本申请针对传统的硬盘承载板进行了改进,通过在基板上设置多条挡墙,一方面利用多条挡墙纵横排布形成的网格槽可以使得基板同时承载多个硬盘,另一方面多条挡墙可以在基板上增加一定的结构强度;同时,通过在位于基板的边缘的挡墙上间隔设置有多个阶梯结构,并且多个阶梯结构沿挡墙的延伸方向排布,利用阶梯结构在基板的边缘形成至少两层阶梯层,在搬运或堆叠过程中,阶梯层可以在基板受到碰撞或挤压时起到缓冲、释放作用力的作用,避免应力集中在基板边缘,减少断裂或破损的风险,从而提高硬盘承载板的整体结构强度。
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Figure CN224652012U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of chips, and more particularly to a hard disk carrier board and testing equipment. Background Technology
[0002] Currently, whether it's batch testing of hard drives or simply storing them, it's generally necessary to use a hard drive carrier board to store a large number of hard drives for easy retrieval.
[0003] Conventional hard drive PCBs are relatively fragile and easily break or break when subjected to external forces, which directly affects the storage of the hard drive and the safety of subsequent operations.
[0004] Therefore, how to improve the structural strength of the hard disk carrier board has become an urgent problem to be solved in this field. Utility Model Content
[0005] This application discloses a hard disk carrier board and a testing device, with the aim of improving the structural strength of the hard disk carrier board.
[0006] This application discloses a hard disk carrier board, which includes a substrate. Multiple baffles are provided on the substrate, and the multiple baffles are arranged longitudinally and transversely on the substrate to form multiple grid slots. Each grid slot is used to place a hard disk. Multiple stepped structures are provided at intervals on the baffles located at the edge of the substrate. The multiple stepped structures are arranged along the extension direction of the baffles, and the stepped structures are used to form at least two stepped layers at the edge of the substrate.
[0007] Optionally, the stepped structure includes a groove and a protrusion. The groove is located on the side of the retaining wall away from the hard disk. The top of the groove and the side of the groove away from the hard disk both have openings. The protrusion is located at the bottom of the groove. The height of the protrusion is less than the height of the retaining wall, and the length of the protrusion is less than the length of the bottom of the groove, so as to form the stepped layer in the groove relative to the edge of the substrate.
[0008] Optionally, the retaining wall surrounding the grid groove includes a first retaining wall and a second retaining wall, the first retaining wall and the second retaining wall being arranged opposite to each other, the first retaining wall being provided with a first opening, the second retaining wall being provided with a second opening, and the positions of the first opening and the second opening being corresponding.
[0009] Optionally, the substrate has a groove at the bottom corresponding to the first opening and the second opening.
[0010] Optionally, the retaining wall surrounding the grid groove further includes a third retaining wall and a fourth retaining wall, the third retaining wall and the fourth retaining wall being respectively connected between the first retaining wall and the second retaining wall; the third retaining wall and the fourth retaining wall are arranged opposite to each other, and at least one of the third retaining wall and the fourth retaining wall includes a base and a blocking part, the blocking part being disposed on the base and extending bent along the length direction of the retaining wall.
[0011] Optionally, at least one of the first retaining wall, the second retaining wall, the third retaining wall, and the fourth retaining wall has a positioning post on the side of the retaining wall closest to the hard disk, and the positioning post is used to connect with the slot on the hard disk.
[0012] Optionally, the substrate includes a first side and a second side disposed opposite to each other, and a plurality of stepped structures are provided on the retaining walls near the first side and the second side, and the positions of the plurality of stepped structures near the first side correspond one-to-one with the positions of the plurality of stepped structures near the second side.
[0013] Optionally, the width of the barrier wall located at the edge of the substrate is greater than the width of the barrier wall located at other locations on the substrate.
[0014] Optionally, the substrate includes a first corner and a second corner, the first corner and the second corner are disposed on the same side, and a recessed portion is disposed on the substrate at the position corresponding to the first corner and the second corner, the thickness of the recessed portion being less than the height of the retaining wall.
[0015] This application also discloses a testing device, including a feeding machine, the testing device including the aforementioned hard disk carrier board, the hard disk carrier board being mounted on the feeding machine.
[0016] This application improves upon traditional hard drive carrier boards by incorporating multiple baffles on the substrate. Firstly, the grid formed by the longitudinal and transverse arrangement of these baffles allows the substrate to simultaneously support multiple hard drives. Secondly, the multiple baffles increase the structural strength of the substrate. Furthermore, by incorporating multiple stepped structures at intervals along the baffles at the substrate's edge, and arranging these stepped structures along the extension direction of the baffles, at least two stepped layers are formed at the substrate's edge. During handling or stacking, these stepped layers act as a buffer, releasing force when the substrate is subjected to collisions or compression, preventing stress concentration at the substrate edge, reducing the risk of breakage or damage, and thus improving the overall structural strength of the hard drive carrier board. Attached Figure Description
[0017] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They serve to demonstrate implementation methods of this application and, together with the textual description, explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort. In the drawings:
[0018] Figure 1 This is a schematic diagram of the first embodiment of the hard disk carrier board of this application;
[0019] Figure 2 This is a schematic diagram of a second embodiment of the hard disk carrier board of this application;
[0020] Figure 3 This is a schematic diagram of the third embodiment of the hard disk carrier board of this application;
[0021] Figure 4 This is a schematic diagram of the fourth embodiment of the hard disk carrier board of this application;
[0022] Figure 5 This is a schematic diagram of the fifth embodiment of the hard disk carrier board of this application;
[0023] Figure 6 This is a schematic diagram of the sixth embodiment of the hard disk carrier board of this application;
[0024] Figure 7 This is a schematic diagram of the seventh embodiment of the hard disk carrier board of this application;
[0025] Figure 8 This is a schematic diagram of the eighth embodiment of the hard disk carrier board of this application;
[0026] Figure 9 This is a schematic diagram of one embodiment of the test equipment of this application.
[0027] Among them, 10 is the testing equipment; 100 is the hard disk carrier board; 200 is the feeding machine; 110 is the substrate; 111 is the first corner; 112 is the second corner; 113 is the first side; 114 is the second side; 115 is the recessed part; 120 is the retaining wall; 121 is the first retaining wall; 122 is the first opening; 123 is the second retaining wall; 124 is the second opening; 125 is the third retaining wall; 126 is the base; 127 is the blocking part; 128 is the fourth retaining wall; 129 is the groove; 130 is the stepped structure; 131 is the groove; 132 is the protrusion; 133 is the opening; 140 is the stepped layer; 150 is the grid groove; and 160 is the positioning post. Detailed Implementation
[0028] The present application will now be described in detail with reference to the accompanying drawings and optional embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0029] Figure 1 This is a schematic diagram of the first embodiment of the hard disk carrier board of this application, as shown below. Figure 1 As shown in the figure, this application discloses a hard disk carrier board 100. The hard disk carrier board 100 includes a substrate 110. Multiple baffles 120 are provided on the substrate 110. The multiple baffles 120 are arranged longitudinally and transversely on the substrate 110 to form multiple grid grooves 150. Each grid groove 150 is used to place a hard disk. Multiple stepped structures 130 are provided at intervals on the baffles 120 located at the edge of the substrate 110. The multiple stepped structures 130 are arranged along the extension direction of the baffles 120. The stepped structures 130 are used to form at least two stepped layers 140 at the edge of the substrate 110.
[0030] This application improves upon the traditional hard disk carrier board 100 by incorporating multiple baffles 120 on the substrate 110. Firstly, the grid grooves 150 formed by the longitudinal and transverse arrangement of the baffles 120 allow the substrate 110 to simultaneously support multiple hard disks. Secondly, the multiple baffles 120 form a grid-like support structure on the substrate 110, increasing the overall rigidity of the substrate 110 to a certain extent. The grid-like baffle structure provides multiple force transmission paths, dispersing external forces on the substrate 110 to a wider area and avoiding localized stress. The risk of breakage due to stress concentration is reduced. Meanwhile, by providing multiple stepped structures 130 at intervals on the baffle 120 located at the edge of the substrate 110, and arranging the multiple stepped structures 130 along the extension direction of the baffle 120, at least two stepped layers 140 are formed at the edge of the substrate 110 using the stepped structures 130. During handling or stacking, the stepped layers 140 can buffer and release the force when the substrate 110 is subjected to collision or compression, avoid stress concentration at the edge of the substrate 110, reduce the risk of breakage or damage, and thus improve the overall structural strength of the hard disk carrier board 100.
[0031] Specifically, the stepped structure 130 includes a groove 131 and a protrusion 132. The groove 131 is opened on the side of the retaining wall 120 away from the hard disk. The top of the groove 131 and the side of the groove 131 away from the hard disk both have openings 133. The protrusion 132 is disposed at the bottom of the groove 131. The height of the protrusion 132 is less than the height of the retaining wall 120, and the length of the protrusion 132 is less than the length of the bottom of the groove 131, so as to form a stepped layer 140 in the groove 131 relative to the edge of the substrate 110.
[0032] In this embodiment, openings 133 are provided at the top of the groove 131 and on the side of the groove 131 away from the hard disk, so that the groove 131 can effectively release the force on the edge of the substrate 110. The protrusion 132, as a local reinforcement structure at the bottom of the groove 131, can directly bear the vertical force and transfer the stress to the edge of the substrate 110 or adjacent areas, reducing the risk of breakage of the retaining wall 120 due to local stress.
[0033] Furthermore, since multiple stepped structures 130 are arranged along the extension direction of the retaining wall 120, the protrusions 132 of each stepped structure 130 will form a stepped layer 140 in the groove 131. The stepped layer 140 has multiple support surfaces. When an external force is applied, the protrusions 132 will convert the external force into a more uniform distribution, avoiding stress concentration at a single weak point, thereby improving the compressive and impact resistance of the substrate 110.
[0034] In addition, the opening 133 of the slot 131 can also serve as a guide structure during assembly. For example, when multiple hard disk carrier boards 100 are stacked, they can be aligned through the slots of the slot 131 on each hard disk carrier board 100, so that multiple hard disk carrier boards 100 can be stacked quickly and structural damage caused by improper installation can be reduced.
[0035] After the hard drive is placed into the grid slot 150, the entire hard drive will be embedded in the grid slot 150. In order to facilitate the operation of the operator to easily remove the hard drive, this application also improves the structure of the retaining wall 120, and the specific improvements are as follows:
[0036] Figure 2 This is a schematic diagram of a second embodiment of the hard disk carrier board of this application, as shown below. Figure 2 As shown, the retaining wall 120 surrounding the grid groove 150 includes a first retaining wall 121 and a second retaining wall 123. The first retaining wall 121 and the second retaining wall 123 are arranged opposite to each other. The first retaining wall 121 is provided with a first opening 122, and the second retaining wall 123 is provided with a second opening 124. The positions of the first opening 122 and the second opening 124 are corresponding.
[0037] In this embodiment, by opening a first opening 122 and a second opening 124 on the first and second opposing walls 121 and 123 surrounding the barrier wall 120 forming the grid groove 150, the two sides of the hard drive installed in the grid groove 150 are exposed by the first opening 122 and the second opening 124.
[0038] When the operator needs to retrieve the hard drive, they can do so from both sides of the hard drive through the first opening 122 and the second opening 124. This makes it less likely to be obstructed by the barrier 120, thus facilitating the operator's retrieval of the hard drive and improving the operator's work efficiency.
[0039] Figure 3 This is a schematic diagram of the third embodiment of the hard disk carrier board of this application, as shown below. Figure 3 As shown, Figure 3 The embodiments are based on Figure 2 As an improvement, the substrate 110 has a groove 129 at the bottom corresponding to the first opening 122 and the second opening 124.
[0040] The difference between this embodiment and the previous embodiment is that in this embodiment, a groove 129 is also provided at the bottom of the substrate 110 corresponding to the first opening 122 and the second opening 124. The groove 129 is used to make the bottom of the substrate 110 corresponding to the first opening 122 and the second opening 124 sink relative to the bottom surface of the grid groove 150.
[0041] When the hard drive is placed in the grid slot 150, the bottom surface of the hard drive is in contact with the bottom surface of the grid slot 150. At this time, because the edge of the hard drive is recessed through the groove 129 of the substrate 110, the operator can more easily lift the hard drive from the side of the grid slot 150 from the bottom up, thereby separating the hard drive from the bottom surface of the grid slot 150. This makes it easier for the operator to pick up the hard drive from the grid slot 150, thus effectively improving the operator's work efficiency.
[0042] Figure 4 This is a schematic diagram of the fourth embodiment of the hard disk carrier board of this application, as shown below. Figure 4 As shown, the retaining wall 120 surrounding the grid groove 150 also includes a third retaining wall 125 and a fourth retaining wall 128, which are respectively connected between the first retaining wall 121 and the second retaining wall 123. The third retaining wall 125 and the fourth retaining wall 128 are arranged opposite to each other, and at least one of the third retaining wall 125 and the fourth retaining wall 128 includes a base 126 and a blocking portion 127, which is disposed on the base 126 and extends bent along the length direction of the retaining wall 120.
[0043] In this embodiment, in the third barrier wall 125 and the fourth barrier wall 128, at least one barrier wall 120 has a blocking portion 127 that extends in a curved manner along the length of the barrier wall 120. The shape formed by the bending of the blocking portion 127 can be wavy, sawtooth, or other arc-shaped. The curved shape of the blocking portion 127 can distribute the applied external force more evenly. When subjected to impact, the bent blocking portion 127 can reduce the rigid impact directly transmitted to the substrate 110, thereby improving the impact resistance.
[0044] In addition, the curved and extended blocking portion 127 has a certain degree of flexibility relative to other blocking walls 120, which can effectively absorb vibrations from the outside (such as vibrations during transportation or equipment operation) and reduce the impact of vibrations on hard drive storage or testing.
[0045] The curved blocking part 127 can also serve as a guide structure to guide the hard drive to slide accurately into the grid groove 150 during installation, preventing the hard drive from getting stuck or damaged due to misalignment.
[0046] In practical applications, the bending radius of the blocking part 127 or the spacing between two adjacent blocking parts 127 can be adjusted to adapt to hard drives of different thicknesses or sizes, thereby enhancing the versatility of the hard drive carrier board 100.
[0047] Figure 5 This is a schematic diagram of the fifth embodiment of the hard disk carrier board of this application, as shown below. Figure 5 As shown, in the first barrier 121, the second barrier 123, the third barrier 125 and the fourth barrier 128, at least one barrier 120 is provided with a positioning post 160 on the side near the hard disk, and the positioning post 160 is used to connect with the slot on the hard disk.
[0048] In this embodiment, by setting a positioning post 160 on the side of at least one of the four retaining walls 120 surrounding the grid groove 150 that are close to the hard drive, when the hard drive needs to be placed in the grid groove 150, the slot of the hard drive can be locked onto the positioning post 160. On the one hand, this can achieve quick positioning of the hard drive in the grid groove 150, and on the other hand, the hard drive installed in the grid groove 150 is limited by the positioning post 160, so that the hard drive is not easy to shake or vibrate significantly in the grid groove 150, which helps to protect the hard drive from damage and thus extend the service life of the hard drive.
[0049] Furthermore, the rapid positioning of multiple hard drives using multiple positioning posts 160 allows for convenient simultaneous gripping of multiple hard drives by the robotic arm during subsequent testing, thus improving testing efficiency.
[0050] Figure 6 This is a schematic diagram of the sixth embodiment of the hard disk carrier board of this application, as shown below. Figure 6 As shown, the substrate 110 includes a first side 113 and a second side 114 disposed opposite to each other. Multiple stepped structures 130 are provided on the retaining walls 120 near the first side 113 and the second side 114, and the positions of the multiple stepped structures 130 near the first side 113 correspond one-to-one with the positions of the multiple stepped structures 130 near the second side 114.
[0051] In this embodiment, multiple stepped structures 130 are symmetrically arranged on the first side 113 and the second side 114 to form a double-sided symmetrical support on the substrate 110. When the substrate 110 is subjected to bending or torsional forces, the stepped structures 130 on both sides of the substrate 110 can synchronously disperse the stress, avoiding deformation or breakage on one side due to overload. For example, if an external force is applied to the center of the substrate 110, the symmetrical structure can uniformly transmit the force to the edge of the substrate 110 through the synergistic effect of the stepped structures 130 at both ends, thereby improving the bending and torsional resistance.
[0052] In addition, the symmetrical arrangement of multiple stepped structures 130 on opposite sides of the substrate 110 can effectively suppress asymmetrical deformation and warping of the substrate 110 caused by local stress.
[0053] The symmetrical position of the stepped structure 130 provides a unified positioning reference for multiple hard disk carrier boards 100 when stacked and installed; operators do not need to frequently adjust the positions on both sides, but can directly use the corresponding stepped structure 130 as a reference, reducing the risk of human error.
[0054] Figure 7 This is a schematic diagram of the seventh embodiment of the hard disk carrier board of this application, as shown below. Figure 7 As shown, the width of the barrier 120 located at the edge of the substrate 110 is greater than the width of the barrier 120 located at other positions on the substrate 110.
[0055] The difference between this embodiment and the previous embodiment is that this embodiment increases the width of the baffle 120 located at the edge of the substrate 110, so that the width of the baffle 120 located at the edge of the substrate 110 is greater than the width of the baffle 120 located at other positions on the substrate 110. This can effectively improve the structural strength of the edge of the substrate 110.
[0056] When the substrate 110 is being transported or stacked, the edge of the substrate 110 is subjected to an impact from an external force. The retaining wall 120 located at the edge of the substrate 110 can effectively release and buffer the force, so that the stress is not easily concentrated at the edge of the substrate 110. This can effectively protect the substrate 110 from damage or breakage and extend the service life of the substrate 110.
[0057] Figure 8 This is a schematic diagram of the eighth embodiment of the hard disk carrier board of this application, as shown below. Figure 8 As shown, the substrate 110 includes a first corner 111 and a second corner 112, which are disposed on the same side. A recessed portion 115 is provided on the substrate 110 at the position corresponding to the first corner 111 and the second corner 112. The thickness of the recessed portion 115 is less than the height of the retaining wall 120.
[0058] In this embodiment, recessed portions 115 are provided on the first corner 111 and the second corner 112 on the same side of the substrate 110. The recessed portions 115 create a significant height difference between the positions of the first corner 111 and the second corner 112 and other positions of the substrate 110. The recessed portions 115 serve as a kind of "foolproof" design, allowing operators to quickly identify the installation or placement direction and position of the hard disk carrier 100 when placing or stacking it based on the recessed portions 115 on the substrate 110 corresponding to the first corner 111 and the second corner 112. This facilitates the correct installation of the hard disk carrier 100 and enables the rapid stacking of multiple hard disk carriers 100.
[0059] Figure 9 This is a schematic diagram of one embodiment of the testing equipment of this application. This application also discloses a testing device 10, including a feeding platform 200. The testing device 10 includes the aforementioned hard disk carrier plate 100, which is mounted on the feeding platform 200. The feeding platform 200 can be a loading platform or a unloading platform. When the feeding platform 200 is a loading platform, the hard disk carrier plate 100 carries multiple hard disks to be tested and is mounted on the loading platform. The loading platform transports the hard disk carrier plate 100 to the testing platform, facilitating testing of the multiple hard disks. When the feeding platform 200 is an unloading platform, the hard disk carrier plate 100 carries multiple hard disks that have already been tested and is mounted on the unloading platform, facilitating the recycling of the tested hard disks via the hard disk carrier plate 100.
[0060] In traditional testing equipment 10, the hard disk carrier board 100 is relatively fragile and is prone to breakage or damage when subjected to external forces, which directly affects the safety of subsequent operation of the testing equipment 10.
[0061] Based on the above problems, this application improves the hard disk carrier board 100 in the test equipment 10. By setting multiple baffles 120 on the substrate 110, on the one hand, the grid grooves 150 formed by the longitudinal and transverse arrangement of the multiple baffles 120 can enable the substrate 110 to support multiple hard disks at the same time. On the other hand, the multiple baffles 120 can increase the structural strength of the substrate 110. At the same time, by setting multiple stepped structures 130 at intervals on the baffles 120 located at the edge of the substrate 110, and the multiple stepped structures 130 are arranged along the extension direction of the baffles 120, at least two stepped layers 140 are formed at the edge of the substrate 110 by the stepped structures 130. During the handling or stacking process, the stepped layers 140 can play a role in buffering and releasing the force when the substrate 110 is subjected to collision or compression, avoiding stress concentration at the edge of the substrate 110, reducing the risk of breakage or damage, thereby improving the overall structural strength of the hard disk carrier board 100 and further improving the test stability of the test equipment 10.
[0062] It should be noted that the inventive concept of this application can form many embodiments, but due to the limited space of the application documents, they cannot all be listed. Therefore, without conflict, the embodiments described above or the technical features can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effect will be enhanced.
[0063] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.
Claims
1. A hard disk carrier board, the hard disk carrier board comprising a base plate, wherein a plurality of baffles are disposed on the base plate, the plurality of baffles being arranged longitudinally and transversely on the base plate to form a plurality of grid slots, each grid slot being used to place a hard disk; characterized in that, The baffle wall located at the edge of the substrate is provided with a plurality of stepped structures at intervals, and the plurality of stepped structures are arranged along the extension direction of the baffle wall. The stepped structures are used to form at least two stepped layers at the edge of the substrate.
2. The hard disk carrier board according to claim 1, characterized in that, The stepped structure includes a groove and a protrusion. The groove is located on the side of the retaining wall away from the hard disk. The top of the groove and the side of the groove away from the hard disk both have openings. The protrusion is disposed at the bottom of the groove, the height of the protrusion is less than the height of the retaining wall, and the length of the protrusion is less than the length of the bottom of the groove, so as to form the stepped layer in the groove relative to the edge of the substrate.
3. The hard disk carrier board according to claim 2, characterized in that, The retaining wall surrounding the grid groove includes a first retaining wall and a second retaining wall, which are arranged opposite to each other. The first retaining wall has a first opening, and the second retaining wall has a second opening. The positions of the first opening and the second opening correspond to each other.
4. The hard disk carrier board according to claim 3, characterized in that, The substrate has grooves at the bottom corresponding to the first opening and the second opening.
5. The hard disk carrier board according to claim 4, characterized in that, The retaining wall surrounding the grid groove also includes a third retaining wall and a fourth retaining wall, which are respectively connected between the first retaining wall and the second retaining wall; the third retaining wall and the fourth retaining wall are arranged opposite to each other, and at least one of the third retaining wall and the fourth retaining wall includes a base and a blocking part, the blocking part is disposed on the base, and the blocking part extends curvedly along the length direction of the retaining wall.
6. The hard disk carrier board according to claim 5, characterized in that, In the first retaining wall, the second retaining wall, the third retaining wall and the fourth retaining wall, at least one of the retaining walls is provided with a positioning post on the side near the hard disk, and the positioning post is used to connect with the slot on the hard disk.
7. The hard disk carrier board according to claim 6, characterized in that, The substrate includes a first side and a second side disposed opposite to each other. A plurality of stepped structures are provided on the retaining walls near the first side and the second side, and the positions of the plurality of stepped structures near the first side correspond one-to-one with the positions of the plurality of stepped structures near the second side.
8. The hard disk carrier board according to claim 7, characterized in that, The width of the retaining wall located at the edge of the substrate is greater than the width of the retaining wall located at other positions on the substrate.
9. The hard disk carrier board according to claim 8, characterized in that, The substrate includes a first corner and a second corner, which are disposed on the same side. A recessed portion is provided on the substrate at the position corresponding to the first corner and the second corner, and the thickness of the recessed portion is less than the height of the retaining wall.
10. A testing device, comprising a feeding machine platform, characterized in that, The testing equipment includes a hard disk carrier board as described in any one of claims 1 to 9, and the hard disk carrier board is installed on the feeding machine.