Separated pinch plate, communication interface expansion device and display equipment

Abstract

The utility model provides a separation type pinch plate, a communication interface expansion device and a display device, and relates to the technical field of security and protection display, at least one first double-edge connector is arranged above the separation type pinch plate, at least one second double-edge connector is arranged below the separation type pinch plate, and the first double-edge connector is connected with the second double-edge connector. And the at least one first double-edge connector and the at least one second double-edge connector are symmetrically arranged by taking the separated buckle plate as an axis. According to the utility model, external interfaces can be increased, and the compatibility of the separated buckle plates can be improved at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of security display, and in particular to a separate gusset plate, a communication interface expansion device and a display device. Background Art

[0002] With the development of the security display field, the demand for the number of external interfaces of display devices has gradually increased. In response to the increasing number of interface requirements, a single CPU (Central Processing Unit) has been difficult to meet product requirements, and it is necessary to expand the external interfaces of display devices by cascading multiple CPUs.

[0003] In the prior art, such as Figure 1 As shown in the figure, in response to the demand for an increase in the number of external interfaces, the number of external interfaces is generally increased through network cascading, using the strong display capabilities of multiple CPUs. The signal transmitted through the network cascade needs to display the data encoding stream, and is decoded and displayed by each slave CPU.

[0004] However, although the network cascade method in the prior art can solve the multi-port decoding and display requirements, it will cause a larger single board layout area and higher cost. At the same time, the external interface is far away from the CPU, resulting in longer signal routing, which in turn leads to poor quality of transmission signals and poor single board compatibility. Utility Model Content

[0005] The utility model provides a separate gusset plate, a communication interface expansion device and a display device, which are used to solve the defects in the prior art that the single board layout area is large and the cost is high. At the same time, the external interface is far away from the CPU, resulting in a long signal routing, which in turn leads to poor quality of transmission signals and poor single board compatibility.

[0006] The utility model provides a detachable gusset plate, wherein at least one first double-edge connector is arranged above the detachable gusset plate, and at least one second double-edge connector is arranged below the detachable gusset plate. The at least one first double-edge connector and the at least one second double-edge connector are symmetrically arranged with the detachable gusset plate as an axis.

[0007] According to the split gusset plate provided by the utility model, for each of the second dual-edge connectors, the second edge region of the second dual-edge connector is communicatively connected with the first edge region of the corresponding first dual-edge connector.

[0008] According to the split gusset plate provided by the utility model, the at least one first double-edge connector corresponds to the at least one second double-edge connector in a one-to-one manner.

[0009] The utility model also provides a communication interface expansion device, comprising: a main board and at least one separate gusset plate as described in any one of the above items, wherein:

[0010] At least one first dual-edge connector is disposed on the mainboard;

[0011] The mainboard and the first separate gusset plate, as well as the adjacent separate gusset plates, are connected based on plugging between at least one first dual-edge connector and at least one second dual-edge connector.

[0012] According to the communication interface expansion device provided by the utility model, the mainboard is communicatively connected with the first separate buckle board based on the first edge area of ​​the target first dual-edge connector and the first edge area of ​​the target second dual-edge connector; the target first dual-edge connector is any one of the at least one first dual-edge connectors set on the mainboard; the target second dual-edge connector is the second dual-edge connector on the first separate buckle board that is plugged into the target first dual-edge connector.

[0013] According to the communication interface expansion device provided by the utility model, a main CPU and an Ethernet switching chip are arranged on the mainboard, the main CPU is connected to the Ethernet switching chip, and the Ethernet switching chip is connected to the at least one first dual-edge connector.

[0014] According to the communication interface expansion device provided by the utility model, at least one slave CPU is arranged on each separate pinch board, and each slave CPU is connected to at least one first dual-edge connector and at least one second dual-edge connector corresponding to the separate pinch board to which it belongs.

[0015] According to the communication interface expansion device provided by the utility model, the at least one first dual-edge connector provided on the mainboard corresponds one to one with the at least one second dual-edge connector provided on the first separate gusset plate.

[0016] According to the communication interface expansion device provided by the utility model, the communication interface expansion device further includes at least two supporting studs, each of which is inserted between the main board and the at least one separate buckle plate.

[0017] The utility model also provides a display device, comprising: at least one external interface and a communication interface expansion device as described in any one of the above items, wherein the communication interface expansion device is connected to the at least one external interface.

[0018] The utility model provides a detachable buckle plate, a communication interface expansion device and a display device, wherein at least one first double-edge connector is arranged above the detachable buckle plate, and at least one second double-edge connector is arranged below the detachable buckle plate. The at least one first double-edge connector and the at least one second double-edge connector are symmetrically arranged with the detachable buckle plate as an axis. By increasing the number of the first double-edge connectors and the second double-edge connectors, the reuse of the detachable buckle plate is achieved, the external interface is increased, and the compatibility of the detachable buckle plate is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural schematic diagram of a communication interface expansion device provided by the prior art;

[0021] Figure 2 It is a structural schematic diagram of a separate gusset plate provided by an embodiment of the utility model;

[0022] Figure 3 It is a side view schematic diagram of a separate gusset plate provided by an embodiment of the utility model;

[0023] Figure 4 It is a top view schematic diagram of the edge area corresponding to the separate gusset plate provided in the embodiment of the utility model;

[0024] Figure 5 This is one of the structural schematic diagrams of the communication interface expansion device provided by the embodiment of the utility model;

[0025] Figure 6 This is the second structural diagram of the communication interface expansion device provided by the embodiment of the utility model;

[0026] Figure 7 It is one of the exemplary side view schematic diagrams of the communication interface expansion device provided by the embodiment of the utility model;

[0027] Figure 8 This is the second example side view schematic diagram of the communication interface expansion device provided in the embodiment of the utility model.

[0028] Reference numerals:

[0029] 110: main board; 120: separate gusset plate; 121: second double edge connector; 122: first double edge connector; 130: main CPU; 140: Ethernet switch chip; 150: slave CPU. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In view of the problems in the prior art that the single board layout area is large and the cost is high, and at the same time, the external interface is far away from the CPU, resulting in a long signal routing, which in turn leads to poor quality of transmission signals and poor single board compatibility, the embodiment of the utility model provides a separate gusset plate. Figure 2 Schematic diagram of the structure of the separate gusset plate provided by the embodiment of the utility model. Figure 2 As shown, at least one first dual-edge connector 122 is arranged above the separate buckle plate 120, and at least one second dual-edge connector 121 is arranged below the separate buckle plate. The at least one first dual-edge connector 122 and the at least one second dual-edge connector 121 are symmetrically arranged with the separate buckle plate 120 as the axis.

[0032] Specifically, on the separate pinch plate 120, at least one first dual-edge connector 122 and at least one second dual-edge connector 121 are installed symmetrically with the separate pinch plate 120 as the axis, that is, at least one first dual-edge connector 122 is installed above the separate pinch plate 120, and at least one second dual-edge connector 121 is installed at a symmetrical position below the separate pinch plate 120. By increasing the number of first dual-edge connectors 122 and second dual-edge connectors 121, the separate pinch plate can be reused.

[0033] It should be noted that the first dual-edge connector 122 and the second dual-edge connector 121 are both dual-edge connectors, which are a type of electronic connector. The dual-edge connector includes two plug-in terminals and two edge areas. Each edge area includes a metal plug-in and a circuit board corresponding to the metal plug-in. The two plug-in terminals are respectively connected to the metal plug-ins corresponding to the two edge areas, and physical connection channels corresponding to the two edge areas are formed between the two plug-in terminals, which facilitates subsequent signal transmission between the two plug-in terminals.

[0034] It should be noted that, in the embodiment of the present invention, the two plug-in ends of the first dual-edge connector 122 are of the same type, and the two plug-in ends of the second dual-edge connector 121 are of the same type, and both can be male ends or female ends. However, the plug-in end type of the first dual-edge connector 122 is different from the plug-in end type of the second dual-edge connector 121. For example, when the two plug-in ends of each first dual-edge connector 122 are both male ends, the two plug-in ends of each second dual-edge connector 121 are both female ends. Conversely, when the two plug-in ends of each first dual-edge connector 122 are both female ends, the two plug-in ends of each second dual-edge connector 121 are both male ends.

[0035] For example, taking the case where two second dual-edge connectors 121 and two first dual-edge connectors 122 are provided on each separate pinch plate 120, Figure 3 is a side view schematic diagram of a separate gusset plate provided by an embodiment of the utility model, such as Figure 3 As shown, a second double-edge connector 121A and a second double-edge connector 121B are arranged below the separate gusset plate 120, and a first double-edge connector 122C and a first double-edge connector 122D are arranged above the separate gusset plate 120, wherein the second double-edge connector 121A and the first double-edge connector 122C are symmetrically installed with the separate gusset plate 120 as an axis, and the second double-edge connector 121B and the first double-edge connector 122D are symmetrically installed with the separate gusset plate 120 as an axis, that is, the second double-edge connector 121A and the first double-edge connector 122C are in the same vertical direction, and the second double-edge connector 121B and the first double-edge connector 122D are in the same vertical direction. In addition, each second double-edge connector 121 and each first double-edge connector 122 includes two edge areas, that is, Figure 4 1 is a top view of the edge area corresponding to the separate gusset plate 120 provided in the embodiment of the utility model. Figure 4 As shown, the second dual edge connector 121A includes a first edge area A1 and a second edge area A2, the second dual edge connector 121B includes a first edge area B1 and a second edge area B2, the first dual edge connector 122C includes a first edge area C1 and a second edge area C2, and the first dual edge connector 122D includes a first edge area D1 and a second edge area D2.

[0036] It should be noted that the at least one first dual-edge connector 122 corresponds to the at least one second dual-edge connector 121. That is, the same number of second dual-edge connectors 121 and first dual-edge connectors 122 are arranged on the separate gusset plate 120. After the at least one first dual-edge connector 122 and the at least one second dual-edge connector 121 are symmetrically installed, it is convenient for two adjacent separate gusset plates 120 to be plugged in correspondingly through the second dual-edge connector 121 and the first dual-edge connector 122, respectively, to ensure the plugging stability between the separate gusset plates 120.

[0037] Further, for each of the second dual-edge connectors 121 , the second edge region of the second dual-edge connector 121 is communicatively connected with the first edge region of the corresponding first dual-edge connector 122 .

[0038] For example, Figure 3 Taking the separated buckle plate 120 shown as an example, the second edge area A2 of the second dual-edge connector 121A is connected to the first edge area C1 of the first dual-edge connector 122C, that is, the signal to be transmitted is transmitted from the second edge area A2 to the first edge area C1, and the second edge area B2 of the second dual-edge connector 121B is connected to the first edge area D1 of the first dual-edge connector 122D, that is, the signal to be transmitted is transmitted from the second edge area B2 to the first edge area D1.

[0039] The utility model provides a separate buckle plate, wherein at least one first double-edge connector is arranged above the separate buckle plate, and at least one second double-edge connector is arranged below the separate buckle plate. The at least one first double-edge connector and the at least one second double-edge connector are symmetrically arranged with the separate buckle plate as an axis. By increasing the number of the first double-edge connectors and the second double-edge connectors, the reuse of the separate buckle plate is achieved, the external interface is increased, and the compatibility of the separate buckle plate is improved.

[0040] The present utility model also provides a communication interface expansion device. Figure 5 is one of the structural diagrams of the communication interface expansion device provided by the embodiment of the utility model, such as Figure 5 As shown, the communication interface expansion device includes: a main board 110 and at least one separate pinch board 120 as described in any one of the above items, wherein:

[0041] At least one first dual-edge connector 122 is disposed on the mainboard 110;

[0042] The mainboard 110 and the first separate pinch board 120 , as well as the adjacent separate pinch boards 120 , are connected based on plugging between at least one first dual-edge connector 122 and at least one second dual-edge connector 121 .

[0043] Specifically, in the embodiment of the utility model, at least one first dual-edge connector 122 is provided on the mainboard 110. When the communication interface expansion device includes the mainboard 110 and a separate pinch plate 120, the at least one first dual-edge connector 122 on the mainboard 110 is plugged with the at least one second dual-edge connector 121 below the separate pinch plate 120, and the mainboard 110 realizes communication connection with the separate pinch plate 120 through the at least one first dual-edge connector 122 and the at least one second dual-edge connector 121. When the communication interface expansion device includes a mainboard 110 and at least two separate gussets 120, at least one first dual-edge connector 122 on the mainboard 110 is plugged with at least one second dual-edge connector 121 below the first separate gusset 120, and adjacent separate gussets 120 are also plugged with at least one second dual-edge connector 121 provided on the upper separate gusset 120 and at least one first dual-edge connector 122 provided on the lower separate gusset 120, so as to realize the communication connection between the mainboard 110 and each separate gusset 120, and the communication connection between each separate gusset 120. Since the installation positions of the second dual-edge connector 121 and the first dual-edge connector 122 on each separate gusset 120 are symmetrical, the situation that the position of the external interface of each separate gusset 120 is offset when plugging can be avoided. At the same time, the structures of each separate gusset 120 are the same, which can reduce the development work and thus reduce the development cost. Secondly, since the separate gussets 120 are stacked and cascaded vertically, the board frame area corresponding to each separate gusset 120 can be reduced, and while saving the cost of the separate gusset 120, the signal routing length and routing density between the external interface and the CPU on each separate gusset 120 can be reduced, thereby improving the quality of the transmitted signal. In addition, since the separate gussets 120 are connected through at least one second dual-edge connector 121 and at least one first dual-edge connector 122, the multiplexing of the separate gussets 120 is achieved, and the compatibility of the separate gussets 120 is enhanced.

[0044] It should be noted that the at least one first dual-edge connector 122 provided on the mainboard 110 corresponds to the at least one second dual-edge connector 121 provided on the first separate gusset plate 120. That is, the number of the first dual-edge connectors 122 provided on the mainboard 110 is equal to the number of the second dual-edge connectors 121 provided below the first separate gusset plate 120, ensuring that the at least one first dual-edge connector 122 on the mainboard 110 is correspondingly plugged with the at least one second dual-edge connector 121 provided below the first separate gusset plate 120, thereby ensuring the plugging stability between the mainboard 110 and the first separate gusset plate 120.

[0045] Further, Figure 6This is a second structural diagram of the communication interface expansion device provided by the embodiment of the utility model, such as Figure 6 As shown, a main CPU 130 and an Ethernet switch chip 140 are disposed on the mainboard 110 , the main CPU 130 is connected to the Ethernet switch chip 140 , and the Ethernet switch chip 140 is connected to the at least one first dual-edge connector 122 .

[0046] Furthermore, if Figure 6 As shown, at least one slave CPU 150 is disposed on each of the separate daughter boards 120 , and each of the slave CPUs 150 is connected to at least one first dual-edge connector 122 and at least one second dual-edge connector 121 corresponding to the separate daughter board 120 .

[0047] Specifically, the Ethernet switching chip 140 is used to implement the switching and forwarding of the signals to be transmitted. The Ethernet switching chip 140 is respectively connected to the main CPU 130 and each first dual-edge connector 122 on the main board 110, and at least one slave CPU 150 provided on each separate daughter board 120 is connected to at least one second dual-edge connector 121 and at least one first dual-edge connector 122 on the corresponding separate daughter board 120. After the main CPU 130 generates the signal to be transmitted, the signal to be transmitted is sent to the Ethernet switching chip 140, and the signal to be transmitted is transmitted to the slave CPU 150 on the corresponding separate daughter board 120 through the first dual-edge connector 122 and at least one second dual-edge connector 121, so as to implement the communication between the main board 110 and the corresponding slave CPU 150.

[0048] Furthermore, the communication interface expansion device also includes at least two supporting studs, each of which is inserted between the mainboard 110 and the at least one separate pinch plate 120 .

[0049] Specifically, since the main board 110 and the first separate buckle plate 120, as well as each separate buckle plate, are connected via at least one first double-edge connector 122 and at least one second double-edge connector 121, in order to avoid damage to at least one first double-edge separator and at least one second double-edge connector 121 due to the large number of the main board 110 and each separate buckle plate 120, at least two supporting studs are inserted between the main board 110 and each separate buckle plate 120 to improve the stability of the insertion between the main board 110 and each separate buckle plate 120.

[0050] Furthermore, the mainboard 110 is communicatively connected with the first separate buckle board 120 based on the first edge area of ​​the target first dual-edge connector and the first edge area of ​​the target second dual-edge connector 121; the target first dual-edge connector is any one of the at least one first dual-edge connector 122 provided on the mainboard 110; the target second dual-edge connector 121 is the second dual-edge connector 121 on the first separate buckle board 120 that is plugged into the target first dual-edge connector.

[0051] For example, Figure 7 is one of the exemplary side views of the communication interface expansion device provided by the embodiment of the utility model, such as Figure 7 As shown, taking the communication interface expansion device including a mainboard 110, a first separate buckle plate 120 and a second separate buckle plate 120, a first dual-edge connector 122X and a first dual-edge connector 122Y are arranged on the mainboard 110, a second dual-edge connector 121A and a second dual-edge connector 121B are arranged below the first separate buckle plate 120, and a first dual-edge connector 122C and a first dual-edge connector 122D are arranged above the first separate buckle plate 120 as an example, the first separate buckle plate 120 serves as the first separate buckle plate 120, and the plug-in end of the first dual-edge connector 122X is plugged into the plug-in end of the second dual-edge connector 121A, so that the first edge area X1 of the first dual-edge connector 122X is connected to the first edge area A1 of the second dual-edge connector 121A, and the second edge area X2 of the first dual-edge connector 122X is connected to the second edge area A2 of the second dual-edge connector 121A. The plug-in end of the first dual-edge connector 122Y is plugged into the plug-in end of the second dual-edge connector 121B, so that the first edge area Y1 of the first dual-edge connector 122Y is connected to the first edge area B1 of the second dual-edge connector 121B, and the second edge area Y2 of the first dual-edge connector 122Y is connected to the second edge area B2 of the second dual-edge connector 121B, thereby realizing the connection between the mainboard 110 and the first separate buckle plate 120.

[0052] When the main CPU 130 on the mainboard 110 communicates with the slave CPU 150 on the first separate pinch board 120, the first dual-edge connector 122X can be selected as the target first dual-edge connector, and the second dual-edge connector 121A can be selected as the target second dual-edge connector. The signal to be transmitted can be transmitted to the slave CPU 150 on the first separate pinch board 120 through the first edge area X1 of the first dual-edge connector 122X and the first edge area A1 of the second dual-edge connector 121A.

[0053] Secondly, the second double-edge connector 121E and the second double-edge connector 121F are arranged below the second separated gusset plate 120, and the first double-edge connector 122G and the first double-edge connector 122H are arranged above the second separated gusset plate 120, wherein: the plug-in end of the first double-edge connector 122C is plugged with the plug-in end of the second double-edge connector 121E, so that the first edge area C1 of the first double-edge connector 122C is connected with the first edge area E1 of the second double-edge connector 121E, and the second edge area C2 of the first double-edge connector 122C is connected with the second edge area E2 of the second double-edge connector 121E. The plug-in end of the first double-edge connector 122D is plugged with the plug-in end of the second double-edge connector 121F, so that the first edge area D1 of the first double-edge connector 122D is connected with the first edge area F1 of the second double-edge connector 121F, and the second edge area D2 of the first double-edge connector 122D is connected with the second edge area F2 of the second double-edge connector 121F. The plug-in end of the first dual-edge connector 122G and the plug-in end of the first dual-edge connector 122H are suspended in the air, so as to realize the connection between the first separate pinch plate 120 and the second separate pinch plate 120 .

[0054] When the master CPU 130 on the mainboard 110 communicates with the slave CPU 150 on the second separate daughter board 120, since the first edge area X1 of the first dual-edge connector 122X and the first edge area A1 of the second dual-edge connector 121A are already occupied, at this time, the signal to be transmitted can be transparently transmitted to the first separate daughter board 120 through the second edge area X2 of the first dual-edge connector 122X and the second edge area A2 of the second dual-edge connector 121A. Afterwards, based on the connection between the second edge area A2 of the second dual-edge connector 121A on the first separate daughter board 120 and the first edge area C1 of the first dual-edge connector 122C, the signal to be transmitted is transmitted from the second edge area A2 to the first edge area C1, and is transmitted to the slave CPU 150 on the second separate daughter board 120 through the first edge area C1 and the first edge area E1 of the second dual-edge connector 121E on the second separate daughter board 120.

[0055] For example, Figure 8 FIG. 2 is a second exemplary side view schematic diagram of a communication interface expansion device provided by an embodiment of the present utility model. Figure 8 As shown, taking the communication interface expansion device including the main board 110, the first separate clasp plate 120, the second separate clasp plate 120 and the third separate clasp plate 120 as an example, Figure 7On the basis of the corresponding structure, the second double edge connector 121J and the second double edge connector 121K are arranged below the third separated gusset plate 120, and the first double edge connector 122L and the first double edge connector 122M are arranged above the third separated gusset plate 120. The plug-in end of the first double edge connector 122G is plugged with the plug-in end of the second double edge connector 121J, so that the first edge area G1 of the first double edge connector 122G is connected with the first edge area J1 of the second double edge connector 121J, and the second edge area G2 of the first double edge connector 122G is connected with the second edge area J2 of the second double edge connector 121J. The plug-in end of the first double edge connector 122H is plugged with the plug-in end of the second double edge connector 121K, so that the first edge area H1 of the first double edge connector 122H is connected with the first edge area K1 of the second double edge connector 121K, and the second edge area H2 of the first double edge connector 122H is connected with the second edge area K2 of the second double edge connector 121K. The male end of the first double edge connector 122L and the male end of the first double edge connector 122M are suspended in the air, so as to realize the connection between the second separate pinch plate 120 and the third separate pinch plate 120 .

[0056] When the master CPU 130 on the mainboard 110 communicates with the slave CPU 150 on the third separate pinch board 120, since the two edge areas of the first dual-edge connector 122X, the two edge areas of the second dual-edge connector 121A, the first edge area C1 of the second dual-edge connector 121C, and the first edge area E1 of the second dual-edge connector 121E are all occupied, at this time, the signal to be transmitted can be transparently transmitted to the first separate pinch board 120 through the first edge area Y1 of the first dual-edge connector 122Y and the first edge area B1 of the second dual-edge connector 121B. Afterwards, the signal to be transmitted is transparently transmitted to the second separate pinch board 120 through the first edge area B1, the second edge area C2 of the first dual-edge connector 122C, and the second edge area E2 of the second dual-edge connector 121E. Afterwards, the signal to be transmitted is transmitted to the slave CPU 150 on the third separate pinch board 120 through the second edge area E2 , the first edge area G1 of the first dual edge connector 122G, and the first edge area J1 of the second dual edge connector 121J.

[0057] The communication interface expansion device provided by the embodiment of the utility model is provided with at least one first dual-edge connector on the main board. The main board and the first separate buckle board, as well as the adjacent separate buckle boards are connected based on the plug-in connection of at least one first dual-edge connector and at least one second dual-edge connector. By multiplexing the separate buckle boards, the external interface is increased while the communication connection between the main board and the separate buckle boards is realized, the area of ​​each separate buckle board is reduced, and the cost is reduced. At the same time, by reducing the distance and wiring density between the external interface and the CPU, the quality of the transmission signal is improved, thereby improving the compatibility of each separate buckle board.

[0058] An embodiment of the utility model further provides a display device, comprising: at least one external interface and a communication interface expansion device as described in any one of the above items, wherein the communication interface expansion device is connected to the at least one external interface.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A separate gusset plate, characterized in that: At least one first double-edge connector is arranged above the separate buckle plate, and at least one second double-edge connector is arranged below the separate buckle plate. The at least one first double-edge connector and the at least one second double-edge connector are symmetrically arranged with the separate buckle plate as the axis.

2. The split gusset plate according to claim 1, characterized in that: For each of the second dual-edge connectors, the second edge region of the second dual-edge connector is communicatively connected to the first edge region of the corresponding first dual-edge connector.

3. The separate gusset plate according to claim 1 or 2, characterized in that: The at least one first dual edge connector corresponds one-to-one to the at least one second dual edge connector.

4. A communication interface expansion device, characterized in that: include: A main board and at least one detachable gusset plate as claimed in any one of claims 1 to 3, wherein: At least one first dual-edge connector is disposed on the mainboard; The mainboard and the first separate gusset plate, as well as the adjacent separate gusset plates, are connected based on plugging between at least one first dual-edge connector and at least one second dual-edge connector.

5. The communication interface expansion device according to claim 4, characterized in that: The mainboard is communicatively connected with the first separate gusset plate based on the first edge area of ​​the target first dual-edge connector and the first edge area of ​​the target second dual-edge connector; the target first dual-edge connector is any one of the at least one first dual-edge connector provided on the mainboard; The target second dual-edge connector is a second dual-edge connector on the first split gusset board that is plugged into the target first dual-edge connector.

6. The communication interface expansion device according to claim 4 or 5, characterized in that: A main CPU and an Ethernet switching chip are arranged on the mainboard, the main CPU is connected to the Ethernet switching chip, and the Ethernet switching chip is connected to the at least one first dual-edge connector.

7. The communication interface expansion device according to claim 4 or 5, characterized in that: At least one slave CPU is arranged on each of the separate daughter boards, and each of the slave CPUs is connected to at least one first dual-edge connector and at least one second dual-edge connector corresponding to the corresponding separate daughter board.

8. The communication interface expansion device according to claim 4 or 5, characterized in that: The at least one first dual-edge connector disposed on the main board corresponds one-to-one to the at least one second dual-edge connector disposed on the first separate gusset plate.

9. The communication interface expansion device according to claim 4 or 5, characterized in that: The communication interface expansion device also includes at least two supporting studs, each of which is inserted between the main board and the at least one separate gusset plate.

10. A display device, characterized in that: include: At least one external interface and a communication interface expansion device as described in any one of claims 4 to 9, wherein the communication interface expansion device is connected to the at least one external interface.

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