Backboard system

By designing the hard disk backplane in the server system and the auxiliary backplane is parallel to the direction of inlet airflow and building a comprehensive control signal circuit, the poor heat dissipation and control signal transmission problems caused by the hard disk backplane are solved, and efficient heat dissipation and signal transmission are achieved. support.

CN222167532UActive Publication Date: 2024-12-13MITAC COMP (SHUN DE) LTD +1
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Patent Information

Application Number
CN202420688567.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-03
Publication Date
2024-12-13
Estimated Expiration
2034-04-03

AI Technical Summary

Technical Problem

In the server system, the horizontal setting of the hard disk backplane causes the incoming airflow to be vertically blocked, affecting the heat dissipation effect. At the same time, reducing the backplane size to improve the passing rate of the airflow will affect the layout of the control signal circuit and cannot meet the control transmission needs of a large number of hard disks.

Method used

Design a backplane system, in which the hard disk backplane and the auxiliary backplane are parallel to the direction of incoming airflow, and a built-in main control signal circuit unit and auxiliary control signal circuit unit are formed to form a comprehensive circuit structure through electrical connection to ensure that the airflow is not vertical. Occurs and provides sufficient control signal transmission support.

Benefits of technology

It effectively improves the heat dissipation efficiency and ensures the passing rate of air flow. At the same time, the control signal transmission needs of a large number of hard disks are met through the integrated circuit structure, avoiding the impact of backplane reduction on the circuit layout.

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Abstract

The utility model relates to the technical field of hard disk backboards, and provides a backboard system which is installed in a machine shell and can be combined with a hard disk device. The backboard system comprises a hard disk backboard device and an auxiliary backboard device. The hard disk backboard device comprises a device backboard and a multi-connector module. The auxiliary backboard device comprises an auxiliary backboard. By means of the design that the hard disk backboard device and the auxiliary backboard device are both parallel to the direction of the incoming air flow flowing into the machine shell, the whole backboard system cannot directly block the incoming air flow in a vertical shielding mode, and the flow of the incoming air flow flowing through the backboard system is prevented from being greatly reduced. Furthermore, a main control signal circuit unit of the device backboard is matched with an auxiliary control signal circuit unit of an auxiliary backboard which is correspondingly and electrically connected with the main control signal circuit unit; therefore, the auxiliary control signal circuit unit can cooperate with and support the main control signal circuit unit so as to provide the connector module on the device backboard to support the hard disk device to carry out control signals required by signal transmission.
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Description

Technical Field

[0001] The utility model relates to the technical field of hard disk backplanes, in particular to a backplane system. Background Art

[0002] In server systems, it has been seen that the use of hard disk architectures that comply with EDSFF SSDs can meet the application requirements of high-density storage servers. Generally speaking, the hard disk is inserted into the hard disk backplane and the control signal circuit configured on the hard disk backplane is used to provide the required hard disk control transmission signal. However, in the current common server housing, the hard disk backplane is horizontally arranged on the housing and is perpendicular to the direction of the inlet airflow flowing into the housing, so that the inlet airflow will be vertically blocked by the horizontally upright hard disk backplane as a whole, resulting in a significant reduction in the flow of airflow through the hard disk backplane, affecting the subsequent heat dissipation operation and causing poor heat dissipation effect. However, if the size of the hard disk backplane is simply reduced to increase the flow of airflow, the layout of the control signal circuit will be affected due to the reduction of the hard disk backplane, resulting in the problem that the control signal circuit of the hard disk backplane cannot cope with the control transmission signal required by the large number of hard disks used. Therefore, how to increase the flow of the inlet airflow through the hard disk backplane to increase the overall heat dissipation efficiency and ensure that the hard disk backplane provides the required hard disk control transmission signal is worthy of careful consideration and further discussion and improvement by practitioners. Utility Model Content

[0003] The main purpose of the utility model is to provide a backplane system with good heat dissipation performance.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A backplane system is installed in a casing and can be combined with a hard disk device. The casing has an installation space for accommodating the backplane system. The backplane system includes: a hard disk backplane device located in the installation space and parallel to an inlet airflow direction flowing into the casing, including a device backplane electrically connected to a mainboard in the casing, and a plurality of connector modules arranged on the device backplane and can be combined with the hard disk device, a main control signal circuit unit is built in the device backplane; and an auxiliary backplane device located in the installation space and parallel to the inlet airflow direction flowing into the casing, including an auxiliary backplane that can be electrically connected to the device backplane, and an auxiliary control signal circuit unit is built in the auxiliary backplane. When the mainboard is electrically connected to the device backplane and the device backplane is electrically connected to the auxiliary backplane, the main control signal circuit unit and the auxiliary control signal circuit unit form an electrical connection and the connector module arranged on the device backplane can support the hard disk device to perform signal transmission.

[0006] Preferably, the hard disk backplane device also includes a main control connection module arranged on the device backplane, and the subsidiary backplane device also includes an subsidiary connection socket arranged on the subsidiary backplane and capable of being plugged and coupled with the main control connection module. The main control connection module is connected to the subsidiary connection socket and electrically connects the device backplane to the subsidiary backplane, thereby forming an electrical connection between the main control signal circuit unit and the subsidiary control signal circuit unit.

[0007] Preferably, the main control connection module of the hard disk backplane device has a connection port that is detachably plugged into the auxiliary connection socket of the auxiliary backplane device, and the connection port of the main control connection module is longitudinally connected to the auxiliary connection socket and makes the device backplane and the auxiliary backplane perpendicular to each other.

[0008] Preferably, each connector module of the hard disk backplane device has a slot which is disposed on the device backplane and extends from the device backplane in an orthogonal direction away from the device backplane and can be connected to the hard disk device.

[0009] Preferably, the hard disk backplane device further comprises a plurality of main connector modules arranged on the device backplane, each main connector module being connected to two of the connector modules.

[0010] In order to further solve the above technical problems, the utility model provides the following technical solutions:

[0011] A backplane system is installed in a case and can be combined with a hard disk device. The case has an installation space for accommodating the backplane system. The backplane system includes: a plurality of hard disk backplane devices that are spaced apart from each other and are located in the installation space and are parallel to an inlet airflow direction flowing into the case. Each hard disk backplane device includes a device backplane electrically connected to a mainboard in the case, and a plurality of connector modules arranged on the device backplane and can be combined with the hard disk device. Each device backplane has a main control signal circuit unit built in it; a plurality of hard disk backplane devices are located in the installation space and are parallel to an inlet airflow direction flowing into the case. Auxiliary backplane devices are parallel to the inlet airflow direction flowing into the casing, each auxiliary backplane device includes an auxiliary backplane that can be electrically connected to any device backplane, each auxiliary backplane has an auxiliary control signal circuit unit built in it, and each auxiliary backplane is connected to another adjacent auxiliary backplane. When the main board is electrically connected to the device backplane and the device backplane is electrically connected to the auxiliary backplane, each main control signal circuit unit forms an electrical connection with the corresponding auxiliary control signal circuit unit and enables the connector module set on each device backplane to support the hard disk device for signal transmission.

[0012] Preferably, each hard disk backplane device also includes a main control connection module arranged on the device backplane, and each subsidiary backplane device also includes an subsidiary connection socket arranged on the subsidiary backplane and capable of being plugged in and combined with any main control connection module. The main control connection module is connected to the subsidiary connection socket and electrically connects the device backplane to the subsidiary backplane, so that the main control signal circuit unit is electrically connected to the subsidiary control signal circuit unit respectively.

[0013] Preferably, the main control connection module of each hard disk backplane device has a connection port that can be detachably plugged into the auxiliary connection socket of any auxiliary backplane device, and the connection port of the main control connection module is longitudinally connected to the auxiliary connection socket and makes the device backplane and the auxiliary backplane respectively perpendicular to each other.

[0014] Preferably, each connector module of each hard disk backplane device has a slot disposed on the corresponding device backplane and extending from the device backplane in an orthogonal direction away from the device backplane and capable of being connected to the hard disk device.

[0015] Preferably, each hard disk backplane device further comprises a plurality of main connector modules disposed on the corresponding device backplane, and each main connector module is connected to two of the connector modules on the corresponding device backplane.

[0016] The effect of the present invention is that the hard disk backplane device and the auxiliary backplane device of the backplane system are designed to be parallel to the inlet airflow direction, and the backplane system as a whole will not directly block the inlet airflow in a vertical blocking manner to avoid significantly reducing the flow rate of the inlet airflow flowing through the backplane system, thereby effectively ensuring the heat dissipation efficiency of the inlet airflow flowing into the casing for heat dissipation. Furthermore, through the ingenious idea that each main control signal circuit unit cooperates with its corresponding electrically connected auxiliary control signal circuit unit to enable the connector module set on each device backplane to support the hard disk device for signal transmission, the auxiliary control signal circuit unit configured on the auxiliary backplane can cooperate with the main control signal circuit unit supporting the device backplane to provide the required control signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the accompanying drawings, wherein:

[0018] Figure 1 is an exploded perspective view illustrating an embodiment of the novel backplane system installed in a housing;

[0019] Figure 2 It is a three-dimensional diagram, which helps explain Figure 1 ;

[0020] Figure 3is a three-dimensional exploded schematic diagram illustrating the connection relationship between a hard disk backplane device and an auxiliary backplane device in the embodiment;

[0021] Figure 4 is a stereogram, illustrating the connection relationship between the multiple connector modules of the hard disk backplane device and the multiple hard disks of a hard disk device in the embodiment from another perspective; and

[0022] Figure 5 It is a three-dimensional diagram illustrating the connection relationship between a fixed frame of the hard disk backplane device and a device backplane in the embodiment. DETAILED DESCRIPTION

[0023] Before the present invention is described in detail, it should be noted that similar elements are represented by the same reference numerals in the following description.

[0024] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The embodiment of the novel backplane system 1 is installed in a housing 90 and can be combined with a hard disk device 8. The housing 90 has an installation space 91 for accommodating the backplane system 1. The backplane system 1 includes a plurality of hard disk backplane devices 2 that are spaced apart from each other and located in the installation space 91 and are parallel to an inlet airflow direction A flowing into the housing 90, and a plurality of auxiliary backplane devices 3 that are located in the installation space 91 and are parallel to the inlet airflow direction A flowing into the housing 90.

[0025] Each hard disk backplane device 2 includes a device backplane 21 electrically connected to a mainboard (not shown) in the housing 90, and a plurality of connector modules 22 disposed on the device backplane 21 and capable of being connected to the hard disk device 8. Each device backplane 21 has a main control signal circuit unit (not shown) built therein.

[0026] Each subsidiary backplane device 3 includes a subsidiary backplane 31 that can be electrically connected to any device backplane 21. Each subsidiary backplane 31 has a built-in subsidiary control signal circuit unit (not shown). Each subsidiary backplane 31 is connected to another adjacent subsidiary backplane 31. When the main board is electrically connected to the device backplane 21 and the device backplane 21 is electrically connected to the subsidiary backplane 31, each main control signal circuit unit is electrically connected to the corresponding subsidiary control signal circuit unit and the connector module 22 disposed on each device backplane 21 can support the hard disk device 8 to perform signal transmission. In the present embodiment, the number of the hard disk backplane devices 2 is a plurality of groups and is matched with the implementation of the plurality of groups of the auxiliary backplane devices 3, but it is not limited thereto. The number of the hard disk backplane devices 2 can also be designed to be only one according to actual use requirements, so the device backplane 21 of the hard disk backplane device 2 is electrically connected to the auxiliary backplane 31 with one auxiliary backplane device 3, and the main control signal circuit unit is electrically connected to the auxiliary control signal circuit unit, so that the connector module 22 disposed on the device backplane 21 supports the hard disk device 8 to perform signal transmission. By the way, in the present embodiment, each auxiliary backplane 31 is as follows Figure 1 As shown, another adjacent subsidiary backplane 31 is connected to form a whole circuit board. The formed whole circuit board can be an integrally formed state, or it can be an integrated circuit board connected to each other by connectors, but it is not limited to this. It can also be a state that the subsidiary backplanes 31 are spaced apart from each other, or a combination of any two or more of the above states.

[0027] During assembly, first assemble the auxiliary back plate 31 of the auxiliary back plate device 3 as follows: Figure 1 As shown, it is arranged in the installation space 91 of the housing 90 and is parallel to the inlet airflow direction A flowing into the housing 90, but it is not limited to this, as long as the auxiliary backplane 31 is parallel to the inlet airflow direction A and does not directly block the inlet airflow direction in the form of a whole horizontal vertical blocking. Next, the hard disk backplane device 2 is assembled with the auxiliary backplane device 3. For the convenience of explanation, the following description is made with a hard disk backplane device 2 connected to an auxiliary backplane device 3. In this embodiment, the device backplane 21 of the hard disk backplane device 2 has been pre-electrically connected directly or indirectly to the mainboard in the housing 90 (but it is not limited to this, and the backplane system can also be electrically connected directly or indirectly to the mainboard in the housing 90 after the assembly operation of the backplane system 1 is completed), so as long as the device backplane 21 is electrically connected to the auxiliary backplane 31 and the device backplane 21 is as follows Figure 2As shown, the backplane system 1 is arranged in the installation space 91 of the casing 90 and is parallel to the air inlet direction A flowing into the casing 90 (but not limited to this, as long as the device backplane 21 is parallel to the air inlet direction A and does not directly block the air inlet direction in a whole horizontal vertical blocking manner), and the assembly operation of the backplane system 1 is completed. At this time, the main control signal circuit unit of the device backplane 21 and the auxiliary control signal circuit unit of the auxiliary backplane 31 form an electrical connection and enable the connector module 22 arranged on the device backplane 21 to support the connected hard disk device 8 for signal transmission.

[0028] By designing the hard disk backplane device 2 and the auxiliary backplane device 3 of the backplane system 1 to be parallel to the inlet airflow direction A, and making the backplane system 1 as a whole not to directly block the inlet airflow in a vertical blocking manner to avoid significantly reducing the flow rate of the inlet airflow passing through the backplane system 1, the heat dissipation efficiency of the inlet airflow flowing into the housing 90 for heat dissipation is effectively ensured. Furthermore, by cooperating with each main control signal circuit unit and its corresponding electrically connected auxiliary control signal circuit unit, the connector module 22 disposed on each device backplane 21 can support the hard disk device 8 for signal transmission, so that the auxiliary control signal circuit unit configured on the auxiliary backplane 31 can cooperate with the main control signal circuit unit supporting the device backplane 21 to provide the required control signal.

[0029] It should be particularly noted that, in this embodiment, each hard disk backplane device 2 further includes a main control connection module 23 disposed on the device backplane 21. Each subsidiary backplane device 3 further includes an subsidiary connection socket 32 ​​disposed on the subsidiary backplane 31 and capable of being plugged and combined with any main control connection module 23. The main control connection module 23 is plugged and connected with the subsidiary connection socket 32 ​​and electrically connects the device backplane 21 to the subsidiary backplane 31, so that the main control signal circuit unit is electrically connected with the subsidiary control signal circuit unit, but the present invention is not limited thereto. In particular, in this embodiment, the main control connection module 23 of each hard disk backplane device 2 has a connection port 231 that is detachably plugged and combined with the subsidiary connection socket 32 ​​of any subsidiary backplane device 3. The connection port 231 of the main control connection module 23 is longitudinally plugged and connected with the subsidiary connection socket 32 ​​and makes the device backplane 21 and the subsidiary backplane 31 respectively perpendicular to each other and parallel to the inlet airflow direction A. In simple terms, the hard disk backplane device 2 is connected to the auxiliary connection socket 32 ​​through the corresponding connection port 231 of the main control connection module 23, so that the main control signal circuit unit is electrically connected to the auxiliary control signal circuit unit, wherein the connection port 231 is in the form of a gold finger unit, but is not limited to this, and can also be connected by board to board connector, cable connection, etc., as long as the main control signal circuit unit of the hard disk backplane device 2 and the auxiliary control signal circuit unit of the auxiliary backplane device 3 can be electrically connected. By the way, in this embodiment, the device backplane 21 of the hard disk backplane device 2 and the auxiliary backplane 31 of the auxiliary backplane device 3 are as follows Figure 2 As shown, the devices are perpendicular to each other and present an orthogonal combination pattern, which can effectively save space, but it is not limited to this. The device backplane 21 of the hard disk backplane device 2 and the auxiliary backplane 31 of the auxiliary backplane device 3 can also present a parallel combination pattern or other combination patterns. Figure 2 , Figure 3 , Figure 4 and Figure 5It is worth mentioning that in this embodiment, each hard disk backplane device 2 also has a fixed frame 25 arranged on the device backplane 21 and detachably coupled to each auxiliary backplane 31. The fixed frame 25 has a frame body 251 coupled to the device backplane 21, and a locking module 252 arranged on the frame body 251. The housing 90 also has a bottom plate 92, and a plurality of fixing seats 93 arranged on the bottom plate 92 and for the locking modules 252 of the fixed frame 25 to be coupled. The locking module 252 of each fixed frame 25 can be detachably locked to any fixing seat 93 of the housing 90. That is to say, when the connection port 231 of the main control connection module 23 of the hard disk backplane device 2 is plugged into the auxiliary connection socket 32, by inserting the locking module 252 of the fixed frame 25 as Figure 5 As shown, the fixing base 93 of the housing 90 is locked and combined, so that the device back panel 21 is supported and fixed by the corresponding fixing frame 25 and further the device back panel 21 is more stably fixed to the combined auxiliary back panel 31, but the present invention is not limited thereto.

[0030] Here, it is further explained that, in the present embodiment, each main control signal circuit unit is cooperated with its corresponding electrically connected subsidiary control signal circuit unit so that the connector module 22 disposed on each device back panel 21 can support the hard disk device 8 for signal transmission, so that the subsidiary control signal circuit unit configured on the subsidiary back panel 31 can cooperate with the main control signal circuit unit supporting the device back panel 21 to provide the required control signal, and according to the depth limit of the installation space 91 in the casing 90, the size of the device back panel 21 can be flexibly adjusted without affecting the connector module 22 disposed on the device back panel 21 to support the hard disk device 8 for signal transmission. For example, due to the limitation of the installation space 91, it is necessary to reduce the length dimension and the overall area of ​​the device back panel 21, which affects the circuit layout design of the main control signal circuit unit on the device back panel 21. Therefore, part of the control signal circuit can be set in the circuit layout design of the auxiliary control signal circuit unit configured on the auxiliary back panel 31, that is, part of the control signal circuit of the main control signal circuit unit that cannot be designed in the device back panel 21 can be correspondingly set in the auxiliary control signal circuit unit of the auxiliary back panel 31; it can also be the opposite, that is, part of the circuit design originally set in the auxiliary control signal circuit unit of the auxiliary back panel 31 is removed, and instead integrated into the control signal circuit of the device back panel 21.

[0031] It should also be noted that, in this embodiment, each connector module 22 of the hard disk backplane device 2 has a slot 221 which is disposed on the corresponding device backplane 21 and extends from the device backplane 21 in an orthogonal direction away from the device backplane 21 and can be plugged into and connected to the hard disk device 8. In other words, the multiple hard disks 81 of the hard disk device 8 can be respectively connected as shown in FIG. Figure 3 As shown, signal communication and data transmission can be performed by inserting the slot 221 of the connector module 22 connected to the hard disk backplane device 2 and forming an electrical connection with the connector module 22, but the present invention is not limited to this. In particular, the hard disk 81 of the hard disk device 8 is a hard disk structure that complies with the EDSFF SSD specification, but the present invention is not limited to this. In particular, in this embodiment, each hard disk backplane device 2 also includes a plurality of main connector modules 24 arranged on the corresponding device backplane 21, and each main connector module 24 is connected to two of the connector modules 22 on the corresponding device backplane 21, but the present invention is not limited to this. In this embodiment, each main connector module 24 is in the form of an MCIO connector, but the present invention is not limited to this.

[0032] In summary, the new backplane system 1, by designing the hard disk backplane device 2 and the auxiliary backplane device 3 to be parallel to the inlet airflow direction A, and making the backplane system 1 as a whole not directly block the inlet airflow in a vertical blocking manner to avoid significantly reducing the flow rate of the inlet airflow passing through the backplane system 1, effectively ensures the heat dissipation efficiency of the inlet airflow flowing into the housing 90 for heat dissipation. Furthermore, by cooperating with each main control signal circuit unit and its corresponding electrically connected auxiliary control signal circuit unit, the connector module 22 disposed on each device backplane 21 can support the hard disk device 8 for signal transmission, so that the auxiliary control signal circuit unit configured on the auxiliary backplane 31 can cooperate with the main control signal circuit unit supporting the device backplane 21 to provide the required control signal, so the purpose of the new device can be achieved.

[0033] However, the above is only an embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. All simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still within the scope of the present patent.

Claims

1. A backplane system installed in a housing and capable of being combined with a hard disk device, wherein the housing has an installation space for accommodating the backplane system, characterized in that: The backplane system comprises: A hard disk backplane device located in the installation space and parallel to an inlet airflow direction flowing into the housing, comprising a device backplane electrically connected to a mainboard in the housing, and a plurality of connector modules disposed on the device backplane and capable of being connected to the hard disk device, wherein a main control signal circuit unit is built in the device backplane; and An auxiliary backplane device is located in the installation space and is parallel to the inlet airflow direction flowing into the casing, including an auxiliary backplane that can be electrically connected to the device backplane, and an auxiliary control signal circuit unit is built in the auxiliary backplane. When the main board is electrically connected to the device backplane and the device backplane is electrically connected to the auxiliary backplane, the main control signal circuit unit and the auxiliary control signal circuit unit form an electrical connection and enable the connector module set on the device backplane to support the hard disk device for signal transmission.

2. The backplane system according to claim 1, characterized in that: The hard disk backplane device also includes a main control connection module arranged on the device backplane, and the auxiliary backplane device also includes an auxiliary connection socket arranged on the auxiliary backplane and capable of being plugged and combined with the main control connection module. The main control connection module is connected to the auxiliary connection socket and electrically connects the device backplane to the auxiliary backplane, thereby forming an electrical connection between the main control signal circuit unit and the auxiliary control signal circuit unit.

3. The backplane system according to claim 2, characterized in that: The main control connection module of the hard disk backplane device has a connection port that can be detachably plugged into the auxiliary connection socket of the auxiliary backplane device. The connection port of the main control connection module is longitudinally connected to the auxiliary connection socket and makes the device backplane and the auxiliary backplane perpendicular to each other.

4. The backplane system according to claim 1, characterized in that: Each connector module of the hard disk backplane device has a slot which is arranged on the device backplane and extends from the device backplane in an orthogonal direction away from the device backplane and can be connected to the hard disk device.

5. The backplane system according to claim 4, characterized in that: The hard disk backplane device also includes a plurality of main connector modules arranged on the device backplane, and each main connector module is connected to two of the connector modules.

6. A backplane system installed in a housing and capable of being combined with a hard disk device, wherein the housing has an installation space for accommodating the backplane system, characterized in that: The backplane system comprises: A plurality of hard disk backplane devices are spaced apart from each other and are located in the installation space and are parallel to an inlet airflow direction flowing into the housing. Each hard disk backplane device includes a device backplane electrically connected to a mainboard in the housing, and a plurality of connector modules disposed on the device backplane and capable of being connected to the hard disk devices. A main control signal circuit unit is built in each device backplane; A plurality of auxiliary backplane devices are located in the installation space and are parallel to the inlet airflow direction flowing into the casing. Each auxiliary backplane device includes an auxiliary backplane that can be electrically connected to any device backplane. Each auxiliary backplane has an auxiliary control signal circuit unit built in it. Each auxiliary backplane is connected to another adjacent auxiliary backplane. When the main board is electrically connected to the device backplane and the device backplane is electrically connected to the auxiliary backplane, each main control signal circuit unit forms an electrical connection with the corresponding auxiliary control signal circuit unit and enables the connector module arranged on each device backplane to support the hard disk device for signal transmission.

7. The backplane system according to claim 4, characterized in that: Each hard disk backplane device also includes a main control connection module arranged on the device backplane, and each subsidiary backplane device also includes an subsidiary connection socket arranged on the subsidiary backplane and capable of being plugged in and combined with any main control connection module. The main control connection module is connected to the subsidiary connection socket and electrically connects the device backplane to the subsidiary backplane, thereby electrically connecting the main control signal circuit unit to the subsidiary control signal circuit unit respectively.

8. The backplane system according to claim 7, characterized in that: The main control connection module of each hard disk backplane device has a connection port that can be detachably plugged into the auxiliary connection socket of any auxiliary backplane device. The connection port of the main control connection module is longitudinally connected to the auxiliary connection socket and makes the device backplane and the auxiliary backplane perpendicular to each other.

9. The backplane system according to claim 6, characterized in that: Each connector module of each hard disk backplane device has a slot which is arranged on the corresponding device backplane and extends from the device backplane in an orthogonal direction away from the device backplane and can be connected to the hard disk device.

10. The backplane system according to claim 9, characterized in that: Each hard disk backplane device also includes a plurality of main connector modules disposed on the corresponding device backplane, and each main connector module is connected to two of the connector modules on the corresponding device backplane.