Mainboard assembly and display device

Abstract

Embodiments of the present application provide a mainboard assembly and a display device, the mainboard assembly comprising a mainboard, a connector and a clamping plate; the mainboard comprises a mounting surface; the connector is arranged on the mounting surface, and the connector has a connecting port; the clamping plate is located on the side where the mounting surface is located, the position of the clamping plate is fixed relative to the mainboard, the clamping plate has a limiting structure, the limiting structure comprises a limiting wall, and the limiting wall abuts against at least part of the peripheral wall of the connector. Through the structural optimization of the mainboard assembly, the risk of loosening of the connector on the mainboard can be reduced.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, specifically to a motherboard component and a display device. Background Technology

[0002] Smart screens and other display devices are widely used in teaching, conferences and other scenarios due to their advantages such as large screen size and touch operation.

[0003] The motherboard of the display device has connectors for connecting external devices. The connector ports are exposed for easy plug-and-play operation. In related technologies, a port baffle is provided on the side of the connector port on the motherboard to protect it. The port baffle has openings that match the port, keeping it exposed. However, the port baffle only protects the port from frontal impacts. In practical applications, incorrect plugging and unplugging, or repeated plugging and unplugging, can easily cause the connector to loosen. Furthermore, heavy cables plugged into the port for extended periods can cause the connector to loosen due to gravity.

[0004] Therefore, how to reduce the risk of connector detachment is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this application is to provide a motherboard component and a display device. By optimizing the structure of the motherboard component, the risk of connectors on the motherboard becoming loose can be reduced.

[0006] To address the aforementioned technical problems, embodiments of this application provide a motherboard assembly, including a motherboard, a connector, and a cardboard.

[0007] The motherboard includes a mounting surface;

[0008] The connector is disposed on the mounting surface, and the connector has a connection port;

[0009] The card plate is located on the side of the mounting surface, and the position of the card plate is fixed relative to that of the motherboard. The card plate has a limiting structure, which includes a limiting wall, and the limiting wall abuts against at least a portion of the peripheral sidewall of the connector.

[0010] In some possible implementations, the peripheral sidewall of the connector includes a first wall surface, a second wall surface, and two opposing sidewall surfaces, wherein the first wall surface and the second wall surface are opposite to each other, and the second wall surface is connected to the mounting surface;

[0011] The limiting structure is a snap-fit ​​groove with an opening facing the mounting surface. The limiting wall includes the bottom wall of the snap-fit ​​groove and two opposing side walls. The bottom wall abuts against the first wall surface, and the two side walls abut against the two side wall surfaces respectively.

[0012] In some possible implementations, the depth of the snap-fit ​​groove is consistent with the height of the connector protruding from the mounting surface.

[0013] In some possible implementations, the motherboard assembly further includes a baffle plate disposed on the side where the connection port is located. The baffle plate has an opening that exposes the connection port and is fixedly connected to the card plate.

[0014] In some possible implementations, the baffle includes a baffle body with the opening, the latch includes a latch body, the latch body and the baffle body are disposed opposite to each other, and the limiting structure is disposed on the latch body; the latch body and the baffle body are fixedly connected.

[0015] In some possible implementations, the card plate and the baffle are an integral structural component, and the end of the card plate body away from the mounting surface is connected to the baffle body via a connecting plate.

[0016] In some possible implementations, the card plate and the baffle are separate structures. One end of the baffle body is bent to form a first bent plate, which is located on the side where the mounting surface is located. The other end of the card plate body away from the mounting surface is bent to form a second bent plate. The bending directions of the first bent plate and the second bent plate are opposite to each other, and the first bent plate and the second bent plate are fixedly connected.

[0017] In some possible implementations, the first bent plate has a first mounting hole, the second bent plate has a second mounting hole, the first mounting hole and the second mounting hole are positioned correspondingly, and the first bent plate and the second bent plate are fixedly connected by fasteners passing through the first mounting hole and the second mounting hole.

[0018] In some possible implementations, the motherboard assembly includes a plurality of connectors disposed in one direction on the mounting surface, and the card has a plurality of limiting structures that are matched one-to-one with the plurality of connectors.

[0019] This application embodiment also provides a display device, including a housing and a motherboard assembly, wherein the motherboard assembly is any of the motherboard assemblies described above, and the baffle or clip of the motherboard assembly is fixedly connected to the housing.

[0020] The motherboard assembly provided in this application embodiment can be used in a display device. The display device can be a smart screen, used in teaching or meeting scenarios, etc. The motherboard assembly is provided with a card plate, which has a limiting structure with a limiting wall. The card plate cooperates with a connector mounted on the motherboard. The limiting wall of the card plate abuts against at least a portion of the peripheral sidewall of the connector. In this way, the limiting wall of the card plate can play a limiting role in the circumferential direction of the connector. In the event of incorrect insertion or removal, repeated insertion or removal, or long-term insertion of heavy cables, the limiting wall abutting against the peripheral sidewall of the connector can have a positioning effect on the connector, which can reduce the risk or probability of connector loosening and improve the reliability of the motherboard assembly. Attached Figure Description

[0021] Figure 1 This is a partial exploded view of a display device provided in one embodiment of this application;

[0022] Figure 2 This is a partial structural diagram of a display device provided in one embodiment of this application;

[0023] Figure 3 for Figure 2 The diagram shown is a structural diagram of the surface where the connection ports of the display device are located.

[0024] Figure 4 This is a partial cross-sectional view of a display device provided in one embodiment of this application;

[0025] Figure 5 for Figure 1 Structural diagram of the middle plate and baffle;

[0026] Figure 6 This is a partial exploded view of the display device in another embodiment provided in this application;

[0027] Figure 7 This is a partial structural diagram of the display device in another embodiment provided in this application;

[0028] Figure 8 This is a partial cross-sectional view of the display device in another embodiment provided in this application;

[0029] Figure 9 for Figure 6 Assembly drawing of the middle plate and baffle;

[0030] Figure 10 for Figure 9 Exploded view of the middle plate and baffle.

[0031] Explanation of reference numerals in the attached figures:

[0032] Motherboard components 100;

[0033] Motherboard 110, mounting surface 111;

[0034] Connector 120, connection port 121, peripheral sidewall 122, first wall surface 1221, second wall surface 1222, sidewall surface 1223;

[0035] Card plate 130, limiting structure 131, snap-fit ​​groove 131A, limiting wall 1311, groove bottom wall 13111, groove side wall 13112, card plate body 1301, second bending plate 1302, second mounting hole 13021.

[0036] Baffle 140, opening 141, baffle body 1401, connecting plate 1402, connecting hole 14021, first bending plate 1403, first mounting hole 14031, third bending plate 1404.

[0037] Fastener 150;

[0038] Housing 200, rear cover 210, back plate 220, adapter stud 221. Detailed Implementation

[0039] To enable those skilled in the art to better understand the technical solutions of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] The ordinal numbers used in the embodiments of this application are for distinguishing different components with the same name and do not indicate a specific order or primary / secondary relationship. The term "multiple" in the embodiments of this application refers to two or more.

[0041] In this application embodiment, unless otherwise explicitly specified, installation, connection, and linking are interpreted broadly. For example, connection can be a direct connection or an indirect connection through an intermediate component.

[0042] For ease of understanding and description, the following text will describe the motherboard component and the display device with the motherboard component together, and the beneficial effects will not be discussed again.

[0043] Please refer to Figures 1 to 3 , Figure 1 This is a partial exploded view of a display device provided in one embodiment of this application. Figure 2 This is a partial structural diagram of the display device provided in one embodiment of this application. Figure 3 for Figure 2 The diagram shows the structure of the surface where the connection port of the display device is located.

[0044] This application provides a display device that can convert electronic signals into visual images or text, providing a visual interface for human-computer interaction. Taking a smart screen as an example, a smart screen can be used in scenarios such as education, office work, or media.

[0045] The display device includes a housing 200 and a motherboard assembly 100 mounted on the housing 200. The motherboard assembly 100 includes a motherboard 110, which may integrate a processor and memory (not shown in the figure), etc. The motherboard 110 also integrates a connector 120, which is used to connect to external devices to realize data transmission or expansion functions, etc.

[0046] The present application focuses on improving the motherboard component 100 of the display device. The improvements to the motherboard component 100 will be described in detail below. Other components and functions of the display device can be implemented with reference to existing technologies and will not be described in detail here.

[0047] In this embodiment, the motherboard assembly 100 includes a motherboard 110 and a connector 120. The motherboard 110 includes a mounting surface 111, and the connector 120 is disposed on the mounting surface 111 of the motherboard 110. The connector 120 has a connection port 121. The connector 120 is located at the edge of the motherboard 110, and the connection port 121 can extend beyond the edge of the motherboard 110. After the motherboard assembly 100 is assembled with the housing 200 of the display device, the connection port 121 is exposed to facilitate connection with external devices via cables with connectors or the like.

[0048] There can be multiple connectors 120 installed on the motherboard 110. Figure 3 In the illustrated embodiment, five types of connectors 120 are installed on the motherboard 110: the first type of connector 1201 is a USB (Universal Serial Bus), the second type of connector 1202 is an HDMI (High Definition Multimedia Interface), the third type of connector 1203 is a network interface, the fourth type of connector 1204 is a headphone jack, and the fifth type of connector 1205 is a Touch USB. In practical applications, the number and type of connectors 120 installed on the motherboard 110 can be set as needed and are not limited to this. Figure 3 Example shown.

[0049] The motherboard assembly 100 also includes a card plate 130, which is located on the side of the motherboard 110 where the mounting surface 111 is located. Figure 2 As shown, the mounting surface 111 of the motherboard 110 faces upward, and the card plate 130 is located on the upper side of the motherboard 110.

[0050] The positions of the card plate 130 and the motherboard 110 are relatively fixed. In some implementations, the motherboard 110 is fixedly connected to the housing 200 of the display device, and the card plate 130 is also fixedly connected to the housing 200, thus the positions of the motherboard 110 and the card plate 130 are relatively fixed.

[0051] Please refer to this as well. Figure 4 and Figure 5 , Figure 4 This is a partial cross-sectional view of a display device provided in one embodiment of this application. Figure 5 for Figure 1 Structural diagram of the middle plate and baffle.

[0052] The card plate 130 has a limiting structure 131, which includes a limiting wall 1311 that abuts against at least a portion of the peripheral sidewall 122 of the connector 120. This configuration allows the limiting wall 1311 of the card plate 130 to limit the connector 120 in the circumferential direction. In cases of incorrect insertion / removal, repeated insertion / removal, or prolonged insertion of heavy cables, the limiting wall 1311 abutting against the peripheral sidewall 122 of the connector 120 can position the connector 120, reducing the risk or probability of the connector 120 becoming loose and improving the reliability of the motherboard assembly 100.

[0053] In some embodiments, the peripheral sidewall 122 of the connector 120 includes a first wall surface 1221, a second wall surface 1222, and two opposing sidewall surfaces 1223. The first wall surface 1221 and the second wall surface 1222 are opposite to each other. The first wall surface 1221 faces away from the mounting surface 111 of the motherboard 110, and the second wall surface 1222 faces the mounting surface 111 of the motherboard 110. The second wall surface 1222 is connected to the mounting surface 111.

[0054] The limiting structure 131 of the card plate 130 can be a snap-fit ​​groove 131A with its opening facing the mounting surface 111 of the motherboard 110. The limiting wall 1311 of the limiting structure 131 includes the groove wall surface of the snap-fit ​​groove 131A. Specifically, the limiting wall 1311 includes the bottom wall 13111 of the snap-fit ​​groove 131A and two opposing side walls 13112. The bottom wall 13111 faces the mounting surface 111.

[0055] The bottom wall 13111 of the slot 131A abuts against the first wall surface 1221 of the connector 120, and the two side walls 13112 of the slot 131A abut against the two side walls 1223 of the connector 120, respectively. In other words, after the motherboard assembly 100 is assembled, the slot 131A of the card plate 130 is engaged with the connector 120, or the connector 120 is embedded in the slot 131A.

[0056] With the above settings, the entire circumference of connector 120 is restricted. In the direction perpendicular to the mounting surface 111, the position of connector 120 is restricted by the bottom wall 13111 of the motherboard 110 and the slot 131A. In the direction perpendicular to the insertion direction of connector 120, the position of connector 120 is restricted by the two side walls 13112 of the slot 131A. In this way, the relative position of connector 120 is relatively stable, which can effectively prevent positional displacement caused by incorrect insertion or removal, repeated insertion or removal, or long-term bearing of cable weight, and greatly reduce the risk of connector 120 becoming loose.

[0057] In practical applications, some connectors 120 have a regular overall shape, such as the Class 5 connector 1205, which is a relatively regular cuboid structure. Other connectors 120 have irregular overall shapes, such as those with legs. Generally speaking, connectors 120 have relatively regular parts. When setting them up, the locking groove 131A of the locking plate 130 can mate with the regular parts of the connector 120 to limit the positioning of the connector 120.

[0058] In some embodiments, the groove depth of the snap-fit ​​groove 131A is consistent with the height of the connector 120 protruding from the mounting surface 111. In this way, the contact area between the groove sidewall 13112 of the snap-fit ​​groove 131A and the sidewall surface 1223 of the connector 120 is relatively large, which can improve the limiting effect on the connector 120.

[0059] In practical applications, after the card plate 130 mates with the connector 120, a gap can be provided between the end face of the card plate 130 facing the mounting surface 111 and the mounting surface 111. This gap serves two purposes: firstly, it prevents interference between the card plate 130 and the mounting surface 111, thus avoiding damage to the main board 110; secondly, it prevents the bottom wall 13111 from failing to abut against the first wall surface 1221 due to processing errors or assembly errors.

[0060] In some embodiments, the motherboard assembly 100 further includes a baffle 140 disposed on the side where the connection port 121 of the connector 120 is located. The baffle 140 has an opening 141 that exposes the connection port 121. The baffle 140 is fixedly connected to the card plate 130.

[0061] The baffle 140 can protect the front of the connector 120 (i.e. the side where the connection port 121 is located). Combined with the circumferential limiting effect of the retaining plate 130 on the connector 120, it can effectively prevent the connector 120 from coming loose.

[0062] In its specific implementation, the baffle 140 includes a baffle body 1401, which has an opening 141 that matches the connection port 121. The card plate 130 includes a card plate body 1301, which is disposed opposite to the baffle body 1401. The baffle body 1401 is located on the side of the motherboard 110, and is positioned on the side where the connection port 121 of the connector 120 extends out of the motherboard 110. The card plate body 1301 and the baffle body 1401 are fixedly connected. This structure is relatively simple and easy to assemble.

[0063] In comparison, the card body 1301 is closer to the motherboard 110 than the baffle body 1401. In other words, in the projection plane parallel to the mounting surface 111, the projection of the card body 1301 is located within the projection of the motherboard 110, while the projection of the baffle body 1401 is located outside the projection of the motherboard 110.

[0064] In some implementations, the card plate 130 and the baffle 140 can be designed as a single integrated structure, and the end of the card plate body 1301 away from the mounting surface 111 can be connected to the baffle body 1401 via a connecting plate 1403. Designing the card plate 130 and the baffle 140 as a single integrated structure can simplify the number of components in the motherboard assembly 100, thereby simplifying the assembly process.

[0065] In practical applications, the blanks used to make the pallet 130 and the baffle 140 can be bent to form the pallet body 1301, the baffle body 1401, and the connecting plate 1402 connecting the two.

[0066] The card plate 130 and the baffle 140 can be made of sheet metal to facilitate bending operations.

[0067] When the motherboard assembly 100 is applied to a display device, the baffle 140 or the card plate 130 can be fixedly connected to the housing 200 of the display device, and the motherboard 110 can also be fixedly connected to the housing 200 of the display device.

[0068] The housing 200 of the display device includes a rear cover 210 and a back plate 220, which are respectively disposed on opposite sides of the main board 110. The rear cover 210 is located away from the display screen of the display device relative to the back plate 220. The back plate 220 may be the back plate of the backlight module of the display device. The mounting surface 111 of the main board 110 faces the rear cover 210, and the connector 120 is located between the main board 110 and the rear cover 210.

[0069] In the application, the connecting plate 1402 can be fixedly connected to the rear cover 210. A connecting hole 14021 can be provided on the connecting plate 1402, and a hole structure corresponding to the position of the connecting hole 14021 can be provided on the rear cover 210. The rear cover 210 and the connecting plate 1402 are fixedly connected by screws or the like. This makes the connecting plate 1402 and the rear cover 210 detachable, facilitating inspection and maintenance. In other embodiments, the connecting plate 1402 and the rear cover 210 can also be fixedly connected by snap-fit, welding, or riveting.

[0070] The baffle 140 may also include a third bent plate 1404. The end of the baffle body 1401 away from the connecting plate 1402 is bent towards the direction of the clamping plate body 1301 to form the third bent plate 1404. The baffle 140 is fixedly connected to the back plate 220 of the housing 200 through the third bent plate 1404. For convenient inspection and maintenance, the third bent plate 1404 and the back plate 220 can also be detachably connected by screws or other means, or fixedly connected by snap-fit, welding, or riveting. The end of the baffle 140 with the third bent plate 1404 is located on the side of the main plate 110 facing the back plate 220.

[0071] In the application, the backplate 220 can be provided with an adapter stud 221, and the mainboard 110 can be drilled at the position of the corresponding adapter stud 221, and connected to the adapter stud 221 by screws or the like.

[0072] In the design where the clamping plate 130 and the baffle 140 are integrated into a single structural component, the baffle body 1401, the connecting plate 1402, and the third bending plate 1404 can be considered as components of the baffle 140, and the clamping plate body 1301 is a component of the clamping plate 130. Alternatively, the connecting plate 1402 can also be considered a component of the clamping plate 130.

[0073] In a design where multiple connectors 120 are mounted on the motherboard 110, these connectors 120 can be arranged in one direction. This allows them to share a single baffle 140 and a retaining plate 130, resulting in a simpler and easier-to-implement structure. In other words, the baffle body 1401 of the baffle 140 has multiple openings 141, each matching the connection port 121 of the corresponding connector 120. The retaining plate 130 has multiple limiting structures 131, each matching one-to-one with a connector 120. Figure 4 and Figure 5 The slots 131A on the card plate 130 are all rectangular slots. Depending on the shape of different connectors 120, the slot depth and slot width of the slots 131A are different. The card plate body 1301 with multiple slots 131A has a roughly comb-shaped structure.

[0074] In other embodiments, the card plate 130 and the baffle 140 may also be configured as separate structural components, as can be referred to Figures 6 to 10 understand, Figure 6 This is a partial exploded view of the display device in another embodiment provided in this application; Figure 7 This is a partial structural diagram of the display device in another embodiment provided in this application; Figure 8 This is a partial cross-sectional view of the display device in another embodiment provided in this application; Figure 9 for Figure 6 Assembly drawing of the middle plate and baffle; Figure 10 for Figure 9 Exploded view of the middle plate and baffle.

[0075] This embodiment is similar to the aforementioned Figures 1 to 5 Compared to the illustrated embodiment, the display device and its motherboard assembly 100 have similar structures, the difference being the arrangement of the card plate 130 and the baffle 140. The following mainly describes the differences; the remaining parts can be understood by referring to the foregoing description and will not be repeated.

[0076] In this embodiment, the card plate 130 and the baffle 140 are separate structural components. The baffle 140 includes a baffle body 1401, one end of which is bent to form a first bent plate 1403, located on the side where the mounting surface 111 is located. The card plate 130 includes a card plate body 1301, the end of which, away from the mounting surface 111, is bent to form a second bent plate 1302. The bending directions of the first bent plate 1403 and the second bent plate 1302 are opposite, and the first bent plate 1302 and the second bent plate 1403 are fixedly connected. Setting the card plate 130 and the baffle 140 as separate structures facilitates their processing. Additionally, it facilitates adding the card plate 130 to a motherboard assembly 100 with an existing baffle 140 to protect the connector 120 of the existing motherboard assembly 100.

[0077] In practical applications, the first bending plate 1403 and the second bending plate 1302 can be stacked. Figure 9 In the example shown, the second bending plate 1302 is located above the first bending plate 1403. In other embodiments, the first bending plate 1403 may also be positioned above the second bending plate 1302.

[0078] In a specific implementation, the first bending plate 1403 has a first mounting hole 14031, and the second bending plate 1302 has a second mounting hole 13021. The positions of the first mounting hole 14031 and the second mounting hole 13021 are corresponding, and the first bending plate 1403 and the second bending plate 1302 are fixedly connected by fasteners 150 passing through the first mounting hole 14031 and the second mounting hole 13021.

[0079] Stacking the first bending plate 1403 and the second bending plate 1302 and fixing them together with fasteners 150 helps ensure the stability and reliability of the connection between the clamping plate 130 and the baffle 140, and also facilitates disassembly, assembly, and maintenance. The fasteners 150 can be screws, bolts, etc.

[0080] In other embodiments, the first bending plate 1403 and the second bending plate 1302 can also be fixed by means of snap-fit, welding or riveting.

[0081] In this embodiment, connecting through holes can be provided on both the first bending plate 1403 and the second bending plate 1302. Screws or bolts are used to fix the first bending plate 1403 and the second bending plate 1302 to the rear cover 210 through the connecting through holes. This ensures the stability of the connection between the clamping plate 130, the baffle 140 and the rear cover 210, and also provides better protection for the connector 120.

[0082] In this embodiment, the baffle 140 also includes a third bent plate 1404. The baffle body 1401 is bent at the end away from the first bent plate 1403 towards the direction of the card plate body 1301 to form the third bent plate 1404. The baffle 140 is also fixedly connected to the back plate 220 through the third bent plate 1404. The cross-section of the baffle 140 is approximately U-shaped, and the bending directions of the first bent plate 1403 and the third bent plate 1404 are the same.

[0083] In practical applications, both baffle 140 and clamp 130 can be formed by bending sheet metal parts.

[0084] In the above embodiments, since the card plate 130 is in contact with the connector 120, the static electricity of the connector 120 can be easily conducted to the card plate 130, which helps the motherboard 110 pass the EMC (Electro Magnetic Compatibility) test and can help improve the anti-interference capability and interference suppression capability of the motherboard 110.

[0085] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A motherboard assembly, characterized in that, Includes motherboard, connectors, and cards; The motherboard includes a mounting surface; The connector is disposed on the mounting surface, and the connector has a connection port; The card plate is located on the side of the mounting surface, and the position of the card plate is fixed relative to that of the motherboard. The card plate has a limiting structure, which includes a limiting wall, and the limiting wall abuts against at least a portion of the peripheral sidewall of the connector.

2. The motherboard assembly according to claim 1, characterized in that, The peripheral sidewall of the connector includes a first wall surface, a second wall surface, and two opposing sidewall surfaces. The first wall surface and the second wall surface are opposite to each other, and the second wall surface is connected to the mounting surface. The limiting structure is a snap-fit ​​groove with an opening facing the mounting surface. The limiting wall includes the bottom wall of the snap-fit ​​groove and two opposing side walls. The bottom wall abuts against the first wall surface, and the two side walls abut against the two side wall surfaces respectively.

3. The motherboard assembly according to claim 2, characterized in that, The depth of the snap-fit ​​groove is consistent with the height of the connector protruding from the mounting surface.

4. The motherboard assembly according to any one of claims 1-3, characterized in that, The motherboard assembly also includes a baffle plate disposed on the side where the connection port is located. The baffle plate has an opening that exposes the connection port. The baffle plate is fixedly connected to the card plate.

5. The motherboard assembly according to claim 4, characterized in that, The baffle includes a baffle body with the opening; the clamping plate includes a clamping plate body; the clamping plate body and the baffle body are disposed opposite to each other; the limiting structure is disposed on the clamping plate body; the clamping plate body and the baffle body are fixedly connected.

6. The motherboard assembly according to claim 5, characterized in that, The card plate and the baffle are an integral structural component, and the end of the card plate body away from the mounting surface is connected to the baffle body through a connecting plate.

7. The motherboard assembly according to claim 5, characterized in that, The card plate and the baffle are separate structures. One end of the baffle body is bent to form a first bent plate, which is located on the side where the mounting surface is located. The other end of the card plate body away from the mounting surface is bent to form a second bent plate. The bending directions of the first bent plate and the second bent plate are opposite to each other. The first bent plate and the second bent plate are fixedly connected.

8. The motherboard assembly according to claim 7, characterized in that, The first bent plate has a first mounting hole, and the second bent plate has a second mounting hole. The positions of the first mounting hole and the second mounting hole are corresponding, and the first bent plate and the second bent plate are fixedly connected by fasteners passing through the first mounting hole and the second mounting hole.

9. The motherboard assembly according to any one of claims 1-3, characterized in that, The motherboard assembly includes a plurality of connectors, which are disposed on the mounting surface in one direction. The card plate has a plurality of limiting structures, which are matched one by one with the plurality of connectors.

10. A display device, characterized in that, It includes a housing and a motherboard assembly, wherein the motherboard assembly is the motherboard assembly according to any one of claims 1-9, and the baffle or plate of the motherboard assembly is fixedly connected to the housing.

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