Hard disk storage expansion cabinet

Abstract

The invention provides a hard disk storage expansion cabinet. The hard disk storage expansion cabinet comprises a plurality of expansion modules, a plurality of power supply units and a storage module, the storage module is arranged in the hard disk storage expansion cabinet and is used for storing a plurality of hard disks; the expansion module is attached to the center of the front side of a rear panel of the hard disk storage expansion cabinet and is used for expanding the interface signals and expanding the received interface signals to a plurality of hard disks; the power supply units are arranged on the upper right portion of the expansion module, attached to the front side of a rear panel of the hard disk storage expansion cabinet and the left side of a right side plate of the hard disk storage expansion cabinet and used for supplying power to the hard disk storage expansion cabinet, and the power supply units are placed in a stacked mode. According to the hard disk storage expansion cabinet, high-density storage of the hard disks can be achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of storage devices and relates to a hard disk storage expansion cabinet. Background Art

[0002] In today's information age, the explosive growth of data volume has become a common phenomenon in all walks of life. Whether it is enterprise data centers, cloud computing platforms, scientific research institutions, video surveillance systems and other fields, higher requirements are placed on data storage. In order to meet the growing storage needs, hard disk storage expansion cabinets have emerged and become an important part of the storage device field. Hard disk storage expansion cabinets are a device specifically used to expand the storage capacity of hard disks. They organize multiple hard disks together in a specific way to form a unified storage pool, thereby realizing the storage and management of large amounts of data.

[0003] Hardware storage expansion cabinets are hard disk storage devices that connect multiple hard disks to a cabinet and use them as a whole. JBOD storage expansion cabinets have the characteristics of simple structure, low cost, and easy expansion. They are suitable for application scenarios that do not require high data redundancy and fault tolerance. Users can flexibly increase the number of hard disks according to actual needs to expand storage capacity. Although hard disk storage expansion cabinets have alleviated the problem of insufficient storage space to a certain extent, there are still some shortcomings in actual applications. With the development of hard disk technology and the continuous increase in data storage needs, traditional hard disk storage expansion cabinets have gradually become insufficient in storage density. Therefore, how to achieve higher density hard disk storage in a limited cabinet space has become an urgent problem to be solved. Summary of the invention

[0004] The present application provides a hard disk storage expansion cabinet for improving the storage density of hard disks in the cabinet.

[0005] In the first aspect, the present application provides a hard disk storage expansion cabinet, which includes: multiple expansion modules, multiple power supply units, and a storage module; the storage module is arranged inside the hard disk storage expansion cabinet, and is used to store multiple hard disks; the expansion module is attached to the front side of the rear panel of the hard disk storage expansion cabinet and is placed in the center, and is used to expand the interface signal and expand the received interface signal to multiple hard disks; the power supply unit is arranged at the upper right side of the expansion module, and the power supply unit is attached to the front side of the rear panel of the hard disk storage expansion cabinet and the left side of the right side panel, and is used to power the hard disk storage expansion cabinet, and the power supply units are stacked.

[0006] In an implementation of the first aspect, the hard disk storage expansion cabinet also includes a fan module, and the fan module includes multiple fans; the fan module is arranged on the rear side of the rear panel of the hard disk storage expansion cabinet and is placed at the bottom, and the fan module is attached to the left side of the power supply unit and is arranged directly below the expansion module; the fan module is used to provide heat dissipation air volume for the hard disk storage expansion cabinet.

[0007] In an implementation of the first aspect, the hard disk storage expansion cabinet also includes a power management arm; the power management arm is arranged on the rear side of the rear panel of the hard disk storage expansion cabinet and is placed above the fan module; the power management arm is used to manage and protect the power connection cable, and when the cabinet slides, the power connection cable moves in the power management arm according to the expected movement direction.

[0008] In an implementation of the first aspect, the expansion module and the storage module are hot-swapped and maintained from the top of the hard disk storage expansion cabinet; the fan module and the power supply unit are hot-swapped and maintained from the back of the hard disk storage expansion cabinet.

[0009] In an implementation of the first aspect, the storage module includes a plurality of hard disks, which are stored in the hard disk storage expansion cabinet in a row, and the expansion module and the power supply unit occupy a certain hard disk space in the storage module.

[0010] In an implementation of the first aspect, the hard disk storage expansion cabinet also includes an HD data transmission line, the expansion module is connected to the hard disk in the storage module through the HD data transmission line, and the HD data transmission line is arranged in the power management arm through the interface of the expansion module.

[0011] In an implementation manner of the first aspect, the power connection line enters the power management arm through an output interface of the power supply unit.

[0012] In an implementation of the first aspect, the hard disk storage expansion cabinet further includes: a slide rail, which is disposed on both sides of the hard disk storage expansion cabinet and is used to pull the storage chassis out of the hard disk storage expansion cabinet.

[0013] In an implementation of the first aspect, the power supply units are attached to the right slide rail in a vertically stacked manner.

[0014] In an implementation of the first aspect, an LED indicator light is provided on the front panel of the hard disk storage expansion cabinet to display the status of the system.

[0015] As described above, the hard disk storage expansion cabinet described in the present application has the following beneficial effects:

[0016] The hard disk storage expansion cabinet provided in the present application achieves a significant improvement in storage density by optimizing the architecture of the layout of expansion modules, storage modules and power supply units. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic diagram of the structure of the hard disk storage expansion cabinet described in an embodiment of the present application.

[0018] Figure 2 Shown is a schematic diagram of the structure of the hard disk storage expansion cabinet described in an embodiment of the present application.

[0019] Figure 3 Shown is a schematic diagram of the structure of the hard disk storage expansion cabinet described in an embodiment of the present application.

[0020] Figure 4 Shown is a schematic diagram of the structure of the hard disk storage expansion cabinet described in an embodiment of the present application.

[0021] Figure 5 Shown is a schematic diagram of the structure of the hard disk storage expansion cabinet described in an embodiment of the present application.

[0022] Component number description

[0023] 1 Expansion Module

[0024] 2 Power supply unit

[0025] 3 Hard Drive

[0026] 4 Fan module

[0027] 5 Power Management Arm

[0028] 6 Slide rails

[0029] 7 LED indicators DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0031] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application, and thus the drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0037] In today's information age, the explosive growth of data volume has become a common phenomenon in all walks of life. Whether it is enterprise data centers, cloud computing platforms, or scientific research institutions, video surveillance systems and other fields, higher requirements have been put forward for data storage. In order to meet the growing storage needs, hard disk storage expansion cabinets have emerged and become an important part of the storage device field. Hard disk storage expansion cabinets are a device specially used to expand the storage capacity of hard disks. It organizes multiple hard disks together in a specific way to form a unified storage pool, thereby realizing the storage and management of large amounts of data. In enterprise data centers, hard disk storage expansion cabinets can be used to store important data such as business data, customer information, and financial data of enterprises; in cloud computing platforms, it can provide cloud service providers with flexible storage resources to support the operation of virtual machines and data storage; in scientific research institutions, it can be used to store scientific research data, experimental results, etc.; in video surveillance systems, it can store a large amount of video data to meet the needs of surveillance recording.

[0038] Hardware storage expansion cabinets are hard disk storage devices that connect multiple hard disks to a cabinet and use them as a whole. JBOD storage expansion cabinets have the characteristics of simple structure, low cost, and easy expansion. They are suitable for application scenarios that do not require high data redundancy and fault tolerance. Users can flexibly increase the number of hard disks according to actual needs to expand storage capacity. Although hard disk storage expansion cabinets have alleviated the problem of insufficient storage space to a certain extent, there are still some shortcomings in actual applications. With the development of hard disk technology and the continuous increase in data storage needs, traditional hard disk storage expansion cabinets have gradually become insufficient in storage density. Therefore, how to achieve higher density hard disk storage in limited cabinet space has become an urgent problem to be solved. For example, in a 1200mm cabinet, the traditional 4RU hard disk storage system can only accommodate up to 102 hard disks, which cannot meet some application scenarios with extremely high storage capacity requirements. Secondly, with the increase in the number of hard disks, the heat dissipation problem inside the hard disk storage expansion cabinet has become increasingly prominent. A large number of hard disks will generate a lot of heat during operation. If the heat dissipation is not timely, the hard disk temperature will be too high, affecting the performance and life of the hard disk. In addition, cable management inside the hard disk storage expansion cabinet also faces challenges. A large number of power cables, data cables and other cables are tangled together in a disorderly manner, which not only affects the appearance, but may also interfere with the normal operation of the hard disk and other components.

[0039] The following embodiment of the present application provides a hard disk storage expansion cabinet for increasing hard disk storage space. The principle and implementation method of a hard disk storage expansion cabinet of this embodiment will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can understand the hard disk storage expansion cabinet of this embodiment without creative labor.

[0040] like Figure 1 As shown, this embodiment provides a hard disk storage expansion cabinet. The hard disk storage expansion cabinet includes: a plurality of expansion modules 1, a plurality of power supply units 2, and a storage module.

[0041] The storage module is arranged inside the hard disk storage expansion cabinet and is used to store multiple hard disks 3. The hard disk is, for example, a HDD storage medium, which is a 3.5-inch disk in size, with a length x width x height of 146.99 mm x 101.85 mm x 26.11 mm.

[0042] The expansion module 1 is attached to the front side of the rear panel of the hard disk storage expansion cabinet and placed in the center, and is used to expand the interface signal and expand the received interface signal to multiple hard disks 3. The expansion module 1 is an expansion SAS module (ESM, Expansion SAS Module), which is an expansion module for SAS signals and is used to expand the input X16 SAS signal to the SAS signal of 108 disks.

[0043] The power supply unit 2 (PSU, Power supply unit) is arranged at the upper right side of the expansion module 1. The power supply unit 2 is attached to the front side of the rear panel and the left side of the right side panel of the hard disk storage expansion cabinet, and is used to supply power to the hard disk storage expansion cabinet. The power supply units 2 are stacked.

[0044] The hard disk storage expansion cabinet is provided with a 4RU JBOD (Just a Bunch Of Disks) storage system, i.e., a chassis that occupies 4RU space. The maximum height of 4RU can be 177.8mm. RU is the abbreviation of rack unit, which is a standard unit for measuring the height of rack-mounted equipment. The JBOD storage system is a storage device that does not contain a built-in processor, is used to expand storage capacity, and can be connected to a server or other storage device.

[0045] According to the above description, the hard disk storage expansion cabinet provided in the present application achieves a significant improvement in storage density by optimizing the architecture of the layout of the expansion module (ESM), storage module (hard disk) and power supply unit (PSU).

[0046] See also Figure 2 and 3 The hard disk storage expansion cabinet further includes a fan module 4, and the fan module 4 includes a plurality of fans. The fan module 4 is arranged on the rear side of the rear panel of the hard disk storage expansion cabinet and is placed at the bottom. The fan module 4 is attached to the left side of the power supply unit 2 and is arranged directly below the expansion module 1. The fan module 4 is used to provide heat dissipation air volume for the hard disk storage expansion cabinet.

[0047] Exemplarily, the fan module 4 is provided with four fixed spaces arranged horizontally, and a fan FAN is placed in each fixed space. When the hard disk 3 in the cabinet storage module is working continuously or the ambient temperature is high, the fan module helps the hard disk and other components inside the hard disk storage expansion cabinet to dissipate heat by blowing air, so as to maintain a stable and suitable working temperature range and reduce the loss of the hard disk caused by high temperature.

[0048] The fan module is placed on the rear panel of the expansion cabinet to maximize the vertical space, avoiding the vertical space in the middle and upper part of the chassis, providing more vertical layout space for the expansion module and power supply unit, which helps to expand the storage capacity of the hard disk and achieve higher density storage. The fan module is placed on the left side of the power supply unit and vertically aligned with the expansion module, forming a compact space layout, reducing space waste, and allowing the various modules inside the cabinet to use limited space more efficiently.

[0049] The fan module is placed at the rear of the hard disk and power supply unit, which can directly blow air to dissipate heat from these heat-generating components, forming effective convection, accelerating the discharge of heat, reducing the operating temperature of the hard disk and power supply unit, and extending their service life. At the same time, the fan module is placed at the bottom to guide the airflow to flow upward from the bottom of the cabinet, forming a good airflow path, making the heat dissipation inside the entire cabinet more uniform and avoiding the occurrence of local overheating.

[0050] The fan module is attached to the left side of the power supply unit and can form a certain structural support with the power supply unit, reducing the impact of the vibration generated by the fan operation on precision components such as the hard disk, thereby improving the stability of the system. Placing the fan module directly below the expansion module can provide balanced heat dissipation support for components such as the hard disk and the expansion module, avoiding the problem of uneven heat dissipation caused by improper fan position, and ensuring the stable operation of the entire system.

[0051] In one embodiment of the present application, the hard disk storage expansion cabinet further includes a power management arm 5 (CMA, Cable Management Arm). The power management arm 5 is arranged on the rear side of the rear panel of the hard disk storage expansion cabinet and is placed above the fan module 4. The power management arm 5 is used to manage and protect the power connection cable. When the cabinet slides, the power connection cable moves in the power management arm 5 according to the expected movement direction.

[0052] Placing the power management arm above the fan module fully utilizes the vertical space at the rear of the chassis and improves space utilization. Managing and protecting the power cables through the power management arm can effectively prevent the cables from interfering with the hard disk and ESM, ensuring the normal and stable operation of these modules. With the protection of the power management arm, the power cables can move in the expected direction when the cabinet slides, reducing friction and wear between the cables and the chassis or other modules, and extending the service life of the cables.

[0053] The power management arm is designed with guiding structures such as guide grooves and guide wheels, which can guide the power connection cable to move along a predetermined path when the cabinet slides, ensuring that the cable will not be entangled or excessively bent. At the same time, the power management arm has a certain elastic support function, providing appropriate tension support for the cable during the sliding process of the cabinet, so that the cable maintains a certain degree of slack.

[0054] Exemplarily, the power management arm includes a fixed end and a movable end, the fixed end is fixed to the rear panel of the chassis, and the movable end is connected to the slide rail of the cabinet and can move with the sliding of the cabinet. A cable channel is provided inside the power management arm to accommodate and guide the power connection line, and fixing devices such as racks and straps are provided on both sides of the channel to fix the cables in the channel. The movable end of the power management arm is designed to be an arc or curved structure. When the cabinet slides, the movable end can adapt and adjust according to the bending and stretching movement direction of the cable, reducing the stress concentration of the cable.

[0055] Exemplarily, according to the type and purpose of the cable, it starts from the interface of each module inside the server and is finally managed through the power management arm. The cables managed and protected in the power management arm include but are not limited to data transmission cables, power cables, and signal cables. The data transmission cables are, for example, SAS, SATA, and Mini SAS HD cables, and the power cables are, for example, power connection cables that connect the power supply unit PSU to other modules and internal components. The data transmission cable is output to the power management arm with the data interface of the expansion module ESM and / or the hard disk. The power cable is output to the power management arm from the output interface of the power supply unit PSU.

[0056] Specifically, the expansion module 1 is connected to the hard disk in the storage module through an HD data transmission line, and the HD data transmission line is arranged in the power management arm 5 through the interface of the expansion module. The HD data transmission line is, for example, a MiniSAS HD line. The Mini SAS HD line comes out from the Mini SAS HD interface of the expansion module ESM and is connected to the mainboard or controller of the server.

[0057] Furthermore, when the data transmission line is a SATA or SAS line, the data interface output of the hard disk can be connected to a backplane or a controller.

[0058] In one embodiment of the present application, the storage module includes a plurality of hard disks 3, which are stored in the hard disk storage expansion cabinet in rows, and the expansion module 1 and the power supply unit 2 occupy a certain hard disk space in the storage module.

[0059] Exemplarily, there are 8 rows of hard disks in the storage module, and the maximum number of rows can be 15. Since the expansion module ESM occupies 8 disk positions and the power supply unit PSU occupies 4 disk positions, the total number of hard disks in the storage module can reach 108.

[0060] By optimizing the architecture of expansion modules, storage modules and power supply units, compared with the current 1200mm cabinet on the market, the maximum number of hard disks in a 4RU JBO storage system is 102. The 4RU storage system of this application can accommodate and support 108 disks, maximizing the 4RU space and achieving the highest density storage in the 4RU system.

[0061] In one embodiment of the present application, the expansion module 1 and the hard disk 3 are hot-swapped for maintenance from the top of the hard disk storage expansion cabinet; the fan module 4 and the power supply unit 2 are hot-swapped for maintenance from the back of the hard disk storage expansion cabinet.

[0062] Hot-swap maintenance refers to a maintenance method that allows hardware components to be safely removed or inserted without shutting down the entire system or device during system operation. This maintenance method allows hardware replacement or upgrade without shutting down the system.

[0063] The expansion module ESM and the hard disk in the storage module are located on the upper part of the chassis. These components can be directly accessed through hot-swap maintenance from the top. Maintenance personnel do not need to disassemble other parts of the chassis when replacing and upgrading hardware, which reduces interference with other components and potential damage risks and ensures the stability of the system. At the same time, there is a large space on the upper part of the chassis, and maintenance such as disassembly, installation and inspection can be carried out from the top, which can reduce the difficulty of maintenance.

[0064] The fan module, power management arm, and power supply unit are located at the rear of the chassis. Maintenance from the rear allows direct access to the module's interfaces and cables, effectively rationalizing the maintenance path and improving the safety of plug-in and pull-out operations without affecting the normal operation of the system. In addition, the fan is hot-swapped for maintenance from the rear of the hard disk storage expansion cabinet. When the fan needs to be replaced or repaired, it can be operated directly from the rear panel without disassembling other components of the cabinet, greatly simplifying the maintenance process and improving maintenance efficiency. The fan module is independent of the power supply unit, expansion module, and hard disk through modular design. During maintenance, the fan module can be replaced or repaired alone without affecting the normal operation of other components, reducing maintenance costs and risks.

[0065] In one embodiment of the present application, the hard disk storage expansion cabinet further includes: slide rails 6, which are arranged on both sides of the hard disk storage expansion cabinet and are used to pull the storage chassis out of the hard disk storage expansion cabinet. The slide rails 6 are arranged on both sides of the storage expansion cabinet to provide support and guidance for the storage chassis. The storage chassis and components such as the hard disk, expansion module, and power supply unit in the chassis can be smoothly pulled out and pushed back by the slide rails, reducing damage to the equipment during maintenance operations.

[0066] The slide rail can slide the equipment in the cabinet out of the cabinet more conveniently and smoothly, without disassembling the cabinet to perform hot-swap maintenance on component modules such as hard disks, reducing the difficulty and time cost of maintenance. After the equipment is moved out through the slide rail, the interfaces and cables can be operated, system upgrades, troubleshooting, etc., which improves the accessibility of the equipment. By combining the slide rail and the battery management arm, it can ensure that the chassis is neat and orderly when sliding out and in, and moves in the expected direction of movement. The power cord, data cable and other cables are fixed near the slide rail to avoid the cables from being tangled together in a disorderly manner, which improves the neatness of the cabinet.

[0067] In one embodiment of the present application, the power supply units are attached to the right slide rail in a vertical stacking manner.

[0068] For example, there are two power supply units installed vertically up and down. The two power supply units are stacked vertically to save space occupied in the horizontal direction, and the power supply units are placed on the right rail to optimize the space layout in the cabinet and provide more storage space for the hard disk assembly.

[0069] Since the power supply unit generates heat that flows upward when working, the power supply units are stacked vertically to allow hot air to flow upward smoothly, which is conducive to the discharge and dissipation of heat, improves the heat dissipation efficiency of the power supply unit, and reduces the operating temperature of the power supply unit. At the same time, the power supply unit is placed close to the right rail to keep a certain distance from the expansion module ESM and the hard disk assembly, reducing the interference of hot air on other modules and components, avoiding the occurrence of local overheating, and ensuring the stable operation of the entire storage system.

[0070] In one embodiment of the present application, an LED indicator light 7 is provided on the front panel of the hard disk storage expansion cabinet for displaying the system status, such as power status, hard disk status, network status, temperature status, system status, etc.

[0071] In summary, the hard disk storage expansion cabinet provided by the present application achieves a significant improvement in storage density through architecture optimization. In terms of storage density, by optimizing the design and adjustment of the layout of the expansion module (ESM), storage module (hard disk) and power supply unit (PSU), the ESM is placed in the center, the routing of all hard disks is balanced, and efficient connection of hard disks is achieved. The hard disk adopts an 8-row layout, and each row can accommodate up to 15 hard disks. Compared with the maximum number of hard disks that can be achieved by the 4RU JBOD storage system in the 1200mm cabinet on the market, the system of the present application achieves a high-density integration of 108 hard disks in the same space, fully tapping the potential of the 4RU space and achieving maximum utilization of the space. At the same time, in terms of heat dissipation, the fan module provides heat dissipation support for the hard disk and the power supply unit, maintains a stable temperature inside the cabinet, and ensures the performance and life of the hard disk. In addition, in terms of cable management, the MiniSAS line is directly managed by entering the CMA after exiting the ESM, which simplifies the cable layout of the entire system and improves the neatness and maintenance convenience of the system.

[0072] The descriptions of the processes or structures corresponding to the above-mentioned figures have different emphases. For parts that are not described in detail in a certain process or structure, please refer to the relevant descriptions of other processes or structures.

[0073] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A hard disk storage expansion cabinet, characterized in that: The hard disk storage expansion cabinet includes: multiple expansion modules, multiple power supply units, and storage modules; The storage module is arranged inside the hard disk storage expansion cabinet and is used to store multiple hard disks; The expansion module is attached to the front side of the rear panel of the hard disk storage expansion cabinet and placed in the center, and is used to expand the interface signal and expand the received interface signal to multiple hard disks; The power supply unit is arranged at the upper right side of the expansion module. The power supply unit is attached to the front side of the rear panel and the left side of the right side panel of the hard disk storage expansion cabinet, and is used to supply power to the hard disk storage expansion cabinet. The power supply units are stacked.

2. The hard disk storage expansion cabinet according to claim 1, characterized in that: The hard disk storage expansion cabinet also includes a fan module, and the fan module includes a plurality of fans; The fan module is arranged on the rear side of the rear panel of the hard disk storage expansion cabinet and is placed at the bottom. The fan module is attached to the left side of the power supply unit and is arranged directly below the expansion module. The fan module is used to provide heat dissipation air volume for the hard disk storage expansion cabinet.

3. The hard disk storage expansion cabinet according to claim 1, characterized in that: The hard disk storage expansion cabinet also includes a power management arm; The power management arm is arranged on the rear side of the rear panel of the hard disk storage expansion cabinet and is placed above the fan module; The power management arm is used to manage and protect the power connection line. When the cabinet slides, the power connection line moves in the power management arm according to the expected movement direction.

4. The hard disk storage expansion cabinet according to claim 1, characterized in that: The expansion module and the storage module are hot-swapped and maintained from the top of the hard disk storage expansion cabinet; the fan module and the power supply unit are hot-swapped and maintained from the back of the hard disk storage expansion cabinet.

5. The hard disk storage expansion cabinet according to claim 1, characterized in that: The storage module includes a plurality of hard disks, which are stored in the hard disk storage expansion cabinet in a row. The expansion module and the power supply unit occupy a certain hard disk space in the storage module.

6. The hard disk storage expansion cabinet according to claim 1, characterized in that: The hard disk storage expansion cabinet also includes an HD data transmission line, through which the expansion module is connected to the hard disk in the storage module, and the HD data transmission line is arranged in the power management arm through an interface of the expansion module.

7. The hard disk storage expansion cabinet according to claim 1, characterized in that: The power connection line enters the power management arm through the output interface of the power supply unit.

8. The hard disk storage expansion cabinet according to claim 1, characterized in that: The hard disk storage expansion cabinet further includes: slide rails, which are arranged on both sides of the hard disk storage expansion cabinet and are used to pull the storage chassis out of the hard disk storage expansion cabinet.

9. The hard disk storage expansion cabinet according to claim 1, characterized in that: The power supply units are attached to the right side slide rail in a vertical stacking form.

10. The hard disk storage expansion cabinet according to claim 1, characterized in that: The front panel of the hard disk storage expansion cabinet is provided with an LED indicator light for displaying the status of the system.

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