Rear shell fixing structure and interactive panel

Abstract

The invention discloses a back shell fixing structure and an interactive panel, and the structure comprises a frame which comprises a frame back side plate; the fixing support comprises a fixing piece and a supporting piece which are connected, the fixing piece comprises a first stopping part and a second stopping part which are connected, and the first stopping part and the second stopping part abut against the front face and the back face of the frame back side plate respectively so that the fixing piece can be limited to the frame back side plate; the inner side of the rear shell is connected with the supporting piece, and the rear shell is locked on the back side of the frame through the fixing support. The rear shell is fixed by directly utilizing the fixing bracket on the back side of the frame, so that the structure that the rear shell is fixed by locking screws on the outer side edge of the original frame can be removed, the problem that the flatness and the attractiveness of a product are damaged by the screws convexly arranged on the outer side edge of the frame is solved, and the competitiveness of the product is favorably improved.

Description

Technical Field

[0001] This application relates to the technical field of display device structural connection, and in particular to a rear shell fixing structure and an interactive flat panel. Background Technology

[0002] The interactive flat panel features a back cover that is fixed to the frame on its periphery to provide cover and protection for the backlight assembly, control board, speaker, and other components. Currently, the back cover of interactive flat panels is typically secured to the frame with screws. However, in some cases, the back cover does not have sufficient contact area with the bottom of the frame, making it impossible to directly screw it onto the back of the frame. Instead, connection holes are made on the outer edge of the frame (such as the top edge of the top frame, the bottom edge of the bottom frame, the left side of the left frame, or the right side of the right frame). A connecting plate extending to the outer edge of the frame is then placed on the back cover at the corresponding connection hole, and screws are then inserted through the connection hole and secured to the connecting plate. Clearly, screws directly on the outer edge of the frame compromise the flatness and aesthetics of the outer edge, negatively impacting the product's competitiveness. Summary of the Invention

[0003] The purpose of this invention is to provide a rear shell fixing structure and an interactive flat panel, which can solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] On the one hand, a rear shell fixing structure is provided, including:

[0006] The frame, including the frame back panel;

[0007] A fixed bracket includes a connected fastener and a support member. The fastener includes a connected first stop and a second stop, which respectively abut against the front and back of the frame back panel to restrict the fastener to the frame back panel.

[0008] The back cover is connected to the support member on the inside, and the back cover is locked to the back side of the frame by the fixing bracket.

[0009] Optionally, the fastener includes a connecting post connecting the first stop and the second stop. The first stop is a non-rotating body. The back side plate of the frame is provided with an irregular hole corresponding to the first stop, and the connecting post is configured to pass through the irregular hole. This allows the first stop aligned with the irregular hole to pass through the irregular hole, and the first stop misaligned with the irregular hole to be restricted to the front side of the back side plate of the frame.

[0010] Optionally, the connection between the connecting post and the irregular hole is configured such that the connecting post can only move back and forth or rotate within the irregular hole; the rotation of the fixing member can cause the first stop to align or misalign with the irregular hole.

[0011] Optionally, the first stop portion includes a base with the same shape as the connecting post and at least two protrusions evenly distributed around the periphery of the base. When the first stop portion is misaligned with the irregular hole, the protrusions can respectively abut against the front of the back panel of the frame.

[0012] Optionally, the fastener further includes a limiting part, and a limiting hole is correspondingly provided on the back side plate of the frame. By engaging the limiting part with the limiting hole, the fastener is restricted from moving along the back side of the frame, thereby locking the fastener at the positions where the first stop and the second stop respectively abut against the front and back sides of the frame back side plate.

[0013] Optionally, the limiting hole and the irregular hole are spaced apart. The limiting part includes a connecting arm and a limiting protrusion. The connecting arm is connected to the side of the second stop and extends along the back of the frame back panel. The limiting protrusion is connected to the end of the connecting arm away from the second stop, so that the limiting protrusion can engage with the limiting hole.

[0014] Optionally, a thinning groove is provided on the side of the connecting arm close to the back panel of the frame, and the thinning groove extends to the side where the connecting arm connects with the second stop.

[0015] Optionally, the fastener is provided with at least two of the limiting portions, and at least two of the limiting portions extend from the two opposite sides of the second stop portion in opposite directions.

[0016] Optionally, the support member includes a support plate connected to the second stop portion and a protrusion disposed on the support plate. The rear shell is provided with a connecting hole corresponding to the protrusion. The protrusion is embedded in the connecting hole to realize the snap-fit ​​connection between the rear shell and the support member.

[0017] Optionally, the frame includes an outer frame plate that is vertically connected to the outside of the frame back panel, the rear shell includes a rear shell outer plate that is parallel to the outer frame plate, and the connecting hole is disposed on the rear shell outer plate.

[0018] Optionally, the back panel of the frame is provided with a receiving groove on the side connected to the outer panel of the frame, and the outer panel of the rear shell extends into the receiving groove.

[0019] Optionally, the fixing bracket is a one-piece injection molded structure.

[0020] Optionally, the support member includes a support plate connected to the second stop and a nut disposed on the support plate. The rear shell is provided with a connecting hole corresponding to the nut. A screw passes through the connecting hole and connects to the nut, thereby realizing the fixed connection between the rear shell and the support member.

[0021] On the other hand, an interactive flat panel is provided, including the aforementioned back cover fixing structure.

[0022] The beneficial effects of this application are as follows: This solution provides a back cover fixing structure and an interactive flat panel. A fixing bracket is provided on the back panel of the frame. The fixing bracket is clamped to the back panel of the frame through the cooperation of a first stop and a second stop, which has the advantages of good fixing reliability and strong anti-falling ability. The fixing bracket provides a support point for connecting with the back cover, thereby locking the back cover to the frame. Therefore, by directly using the fixing bracket to fix the back cover, the original structure of fixing the back cover with screws on the outer side of the frame can be eliminated. This eliminates the problem of screws protruding on the outer side of the frame damaging the flatness and aesthetics of the product, and helps to improve the competitiveness of the product. Attached Figure Description

[0023] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the front side of the rear shell fixing structure described in the embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the rear shell fixing structure as described in the embodiments of this application;

[0026] Figure 3 This is a cross-sectional view of the rear shell fixing structure described in this application;

[0027] Figure 4 for Figure 3 Enlarged view of region A in the middle;

[0028] Figure 5 This is one of the structural schematic diagrams of the fixed bracket described in the embodiments of this application;

[0029] Figure 6 This is a second schematic diagram of the structure of the fixed bracket described in the embodiments of this application;

[0030] Figure 7 This is the third schematic diagram of the structure of the fixed bracket described in the embodiments of this application;

[0031] Figure 8 This is a schematic diagram of the frame structure described in the embodiments of this application;

[0032] Figure 9 for Figure 8Enlarged view of region B in the middle;

[0033] Figure 10 This is a cross-sectional view of the border described in the embodiments of this application;

[0034] Figure 11 This is a schematic diagram of the front side of the rear shell as described in an embodiment of this application;

[0035] Figure 12 for Figure 11 A magnified view of region C in the middle.

[0036] In the picture:

[0037] 1. Frame; 11. Frame back panel; 111. Irregular hole; 112. Limiting hole; 113. Receiving groove; 12. Frame outer panel; 2. Rear shell; 21. Rear shell panel; 211. Positioning hole; 22. Rear shell outer panel; 221. Connecting hole; 3. Fixing bracket; 31. Fixing component; 311. First stop; 3111. Base; 3112. Boss; 312. Second stop; 313. Connecting post; 314. Limiting part; 3141. Connecting arm; 3142. Limiting buckle; 3143. Thinning groove; 32. Support component; 321. Support plate; 322. Protruding post. Detailed Implementation

[0038] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] The interactive flat panel features a back cover that is fixed to the frame on its periphery to provide cover and protection for the backlight assembly, control board, speaker, and other components. Currently, the back cover of interactive flat panels is typically secured to the frame with screws. However, in some cases, the back cover does not have sufficient contact area with the bottom of the frame, making it impossible to directly screw it onto the back of the frame. Instead, connection holes are made on the outer edge of the frame (such as the top edge of the top frame, the bottom edge of the bottom frame, the left side of the left frame, or the right side of the right frame). A connecting plate extending to the outer edge of the frame is then placed on the back cover at the corresponding connection hole, and screws are then inserted through the connection hole and secured to the connecting plate. Clearly, screws directly on the outer edge of the frame compromise the flatness and aesthetics of the outer edge, negatively impacting the product's competitiveness.

[0042] Specifically, some back covers have a first fixing edge that fits snugly against the back of the frame. Correspondingly, threaded holes are provided on the back of the frame. Screws are inserted through the first fixing edge and connected to the threaded holes to lock the back cover onto the frame. In this case, the screws are located on the back of the unit, which is difficult for users to observe, and has little impact on the product's aesthetics. Some back covers have a second fixing edge perpendicular to the back of the frame. In this case, a connecting plate that can be inserted into the inside of the frame needs to be provided at the edge of the second fixing edge. At the same time, connecting holes are provided on the outer edges of the frame (such as the top edge of the upper frame, the bottom edge of the lower frame, the left side of the left frame, or the right side of the right frame). Screws are inserted through these connecting holes and connected to the connecting plate to lock the second fixing edge. However, the screws located on the outer edges of the frame are in an easily observable area. From a user's perspective, the flatness and aesthetics of the product's frame are poor.

[0043] For example, Chinese authorized patent CN216087194U discloses a display device rear shell fixing structure and display device, which includes a back plate fixed to the display panel. A rear shell assembly is provided on the side of the back plate away from the panel. The combination of the back plate and the rear shell assembly provides cover for the entire back of the display device. The rear shell assembly includes a frame rear shell fixed to the back side of the lower frame. The frame rear shell and the lower frame together form a device mounting space, allowing components to be mounted on the lower frame and protected by the frame rear shell. When it is necessary to maintain or replace the components mounted in the device mounting space, only the frame rear shell needs to be removed, without disassembling the entire rear shell, thereby reducing workload and labor intensity.

[0044] The back cover of the frame is L-shaped, comprising a first connecting segment and a second connecting segment perpendicular to each other. To secure the back cover, the first connecting segment is screwed to the corner back cover on both sides and to the back panel on the top side. The second connecting segment is perpendicular to the back of the lower frame and close to its lower surface. Therefore, it cannot be directly screwed onto the lower frame from the back of the display device. Instead, a connecting plate is installed on the side of the second connecting segment furthest from the first connecting segment. This connecting plate has a first connecting hole, and the bottom side of the lower frame has a second connecting hole corresponding to the first connecting hole. A threaded fastener is used, passing through the second connecting hole and connecting to the first connecting hole, to secure the second connecting segment to the lower frame. Obviously, after installation, the end cap of the threaded fastener will protrude from the bottom surface of the lower frame, compromising its flatness.

[0045] To overcome the above-mentioned shortcomings, this embodiment provides a back cover fixing structure that can be applied to display devices such as interactive flat panels, televisions, monitors, commercial display screens, and smart blackboards. By setting a fixing bracket 3 on the back side of the frame 1 to secure the back cover 2, the problem of difficult back cover fixing in traditional display devices is solved. Importantly, based on the fixing bracket 3, when fixing the back cover 2, there is no need to drill holes or tighten screws on the side of the frame 1, avoiding the problem of screws protruding from the side of the frame 1 damaging the flatness of the side surface of the frame 1.

[0046] Reference Figures 1-12 The rear shell fixing structure of this embodiment includes a frame 1, a fixing bracket 3, and a rear shell 2. The frame 1 includes a frame back panel 11; the fixing bracket 3 includes a connected fixing member 31 and a supporting member 32, with the fixing member 31 fixed to the frame back panel 11; the inner side of the rear shell 2 is connected to the supporting member 32, and the rear shell 2 is locked to the back side of the frame 1 by the fixing bracket 3.

[0047] In this embodiment, all components are described with reference to their assembled state on the display device. The direction from the back panel of the display device to the display surface is taken as the positive direction, with the front side being the front and the rear side being the back. That is, the bezel back panel 11 is located on the back side of the bezel 1, and in use, the bezel back panel 11 is a part that is not easily observed by the user. Furthermore, with the center point of the display device structure as a reference, the side of each component closer to the center point is the inner side, and the side farther from the center point is the outer side.

[0048] The mounting bracket 3 is installed on the back panel 11 of the frame. Because the frame 1 obstructs the view of the mounting bracket 3, it is not easily observed by the user, thus the mounting bracket 3 does not disrupt the appearance of the display device. The mounting bracket 3 is connected to the inner side of the rear shell 2, providing support for the installation of the rear shell 2. The rear shell 2 can also cover the mounting bracket 3, improving the flatness of the back surface of the display device.

[0049] In this embodiment, a fixing bracket 3 is provided, the main function of which is to provide a support point on the back side of the frame 1 for connecting the back shell 2, as can be seen from... Figure 3 The situation described is particularly applicable when the contact area between the back cover 2 and the back of the frame 1 is too small, making it impossible to secure the back cover 2 to the back of the frame 1 with screws. The frame 1 can be the top, bottom, left, or right frame of the display device. In this embodiment, the back cover 2 installed on the back of the frame 1 can be a traditional back panel, middle back cover, or small back cover of a display device. In other words, the back cover 2 in this embodiment can be the back panel, heat dissipation back cover, or frame back cover described in prior art document CN216087194U.

[0050] The connection between the fixed bracket 3 and the frame 1 or the back shell 2 can be achieved by snap-fitting, screw connection, riveting, or other methods.

[0051] In summary, based on the rear shell fixing structure of this embodiment, a fixing bracket 3 is provided on the back side plate 11 of the frame. The fixing bracket 3 is connected to the rear shell 2, thereby locking the rear shell 2 to the frame 1. Therefore, by directly using the fixing bracket 3 on the back side of the frame 1 to fix the rear shell 2, the original structure of fixing the rear shell 2 with screws on the outer side of the frame 1 can be eliminated. This eliminates the problem of screws protruding on the outer side of the frame 1 damaging the flatness and aesthetics of the product, and helps to improve the competitiveness of the product.

[0052] In one embodiment, reference is made to Figures 4-7 The fastener 31 includes a first stop 311 and a second stop 312 connected to each other. The first stop 311 and the second stop 312 abut against the front and back sides of the frame back panel 11, respectively, to restrict the fastener 31 from detaching from the frame back panel 11.

[0053] Specifically, the fastener 31 provides a first stop 311 and a second stop 312. After installation, the two can abut against the front and back sides of the frame back panel 11 respectively, thus restricting the forward and backward movement of the fastener 31 relative to the frame back panel 11, so that the fastener 31 cannot detach from the frame back panel 11. In other words, the fastener 31 is clamped to the frame back panel 11 from both the front and back sides. Obviously, this form has the advantages of good fixing reliability and strong anti-detachment ability.

[0054] It is understood that the first stop 311 and the second stop 312 both belong to the fixing member 31. The fixing member 31 has a connecting structure that can connect the first stop 311 and the second stop 312, so that the two can maintain abutment against the front and rear sides of the frame back panel 11. Therefore, a clearance hole is required on the frame back panel 11 to allow the connecting structure to pass through, so that the connecting structure can be placed in the clearance hole. When setting the clearance hole, it can just allow the connecting structure to pass through, or it can be set to a size larger than the connecting structure.

[0055] In one embodiment, combined with Figure 6 and Figure 9 The fastener 31 includes a connecting post 313 connecting the first stop 311 and the second stop 312. The first stop 311 is a non-rotating body. The back side plate 11 of the frame is provided with an irregular hole 111 corresponding to the first stop 311, and the connecting post 313 is configured to pass through the irregular hole 111. This allows the first stop 311 aligned with the irregular hole 111 to pass through the irregular hole 111, and the first stop 311 misaligned with the irregular hole 111 can be restricted to the front side of the back side plate 11 of the frame.

[0056] Specifically, the first stop 311 is configured as a non-rotating body, and the back panel 11 of the frame is provided with a shaped hole 111 corresponding to the first stop 311. This allows the first stop 311 to be fully aligned with the shaped hole 111 and then moved through the shaped hole 111 to the front side of the back panel 11 of the frame during installation. Then, by rotating or translating the fixing member 31, the first stop 311 of the non-rotating body can be made to have a certain degree of overlap with the front side of the back panel 11 of the frame, that is, the first stop 311 and the shaped hole 111 are misaligned, so that the first stop 311 cannot move backward.

[0057] Therefore, the structure of this embodiment has the advantages of facilitating the installation of the fixed bracket 3 and enabling the fixed bracket 3 to be locked quickly.

[0058] In one embodiment, the connection between the connecting post 313 and the irregular hole 111 is configured such that the connecting post 313 can only move back and forth or rotate within the irregular hole 111; the first stop 311 can be aligned or misaligned with the irregular hole 111 by rotating the fixing member 31.

[0059] In other words, after the connecting post 313 is inserted into the irregular hole 111, it can only rotate around its own axis, or move axially relative to the irregular hole 111 while keeping the first stop 311 aligned with the irregular hole 111. The connecting post 313 cannot move radially relative to the irregular hole 111. Therefore, after the fastener 31 is installed on the back panel 11 of the frame, the position of the first stop 311 can only be adjusted by its own rotation to realize the installation and removal of the fastener 31. During the installation and removal process, the fastener 31 cannot move radially. When the fastener 31 is locked, as long as the rotational freedom of the fastener 31 is locked, the first stop 311 and the second stop 312 can remain in contact with the front and rear sides of the back panel 11 of the frame.

[0060] Therefore, in this embodiment, the connecting post 313 and the irregular hole 111 are fitted by rotational installation, which facilitates locking of the fixing member 31. In addition, the fixing member 31 cannot move radially relative to the irregular hole 111, which increases the difficulty for the fixing member 31 to align the first stop part 311 with the irregular hole 111 through its own movement, thus improving the reliability of the fixing member 31 installed on the back panel 11 of the frame.

[0061] In one embodiment, reference is made to Figure 6 The first stop portion 311 includes a base 3111 with the same shape as the connecting post 313 and at least two protrusions 3112 evenly distributed around the base 3111. When the first stop portion 311 is misaligned with the irregular hole 111, the protrusions 3112 can respectively abut against the front of the frame back panel 11.

[0062] Since the connecting post 313 can rotate freely relative to the irregular hole 111, that is, assuming there is no obstruction from the first stop 311, the connecting post 313 can always move axially relative to the irregular hole 111. Correspondingly, without considering the boss 3112, the base 3111 can freely enter the irregular hole 111 regardless of its rotation position. Therefore, the boss 3112 provided on the periphery of the base 3111 can be offset from the irregular hole 111 by rotating the fixing member 31, so that the boss 3112 can abut against the front of the frame back panel 11 to form a limit. In this solution, at least two bosses 3112 are evenly distributed on the periphery of the base 3111. That is, the first stop 311 can extend from multiple directions of the base 3111 to abut against the front of the frame back panel 11, obtaining a multi-directional limiting structure and enhancing the anti-detachment capability of the fixing member 31 on the frame back panel 11.

[0063] As can be seen from the foregoing, the structure of the first stop 311, the second stop 312 and the connecting post 313 in the fastener 31 of this solution can completely restrict the linear translation of the fastener 31 relative to the back panel 11 of the frame. As long as the rotation of the fastener 31 is further restricted, the fastener 31 can be completely limited.

[0064] Therefore, in one embodiment, the fastener 31 further includes a limiting part 314, and a limiting hole 112 is correspondingly provided on the back side plate 11 of the frame. By engaging the limiting part 314 with the limiting hole 112, the fastener 31 is restricted from moving along the back side of the frame back side plate 11, thereby locking the fastener 31 at the positions where the first stop part 311 and the second stop part 312 abut against the front and back sides of the frame back side plate 11, respectively.

[0065] Specifically, the limiting hole 112 is eccentrically positioned relative to the irregular hole 111, the connecting post 313 is inserted into the irregular hole 111, and the limiting part 314 is inserted into the limiting hole 112. Based on the principle that two points determine a straight line, this structure can realize the rotational movement of the fixing member 31 on the back side plate 11 of the frame.

[0066] This solution uses the limiting part 314 on the fixing part 31 to engage with the limiting hole 112, which satisfies the fixing requirements without the need for additional screws. Only a single fixing bracket 3 is required. In other words, the fixing bracket 3 can be completely fixed to the back panel 11 of the frame without the need for other parts (such as screws) for fixing, reducing the number of screws used in product assembly, simplifying the assembly process, and reducing equipment costs.

[0067] In one embodiment, the limiting hole 112 and the irregular hole 111 are spaced apart. The limiting part 314 includes a connecting arm 3141 and a limiting protrusion 3142. The connecting arm 3141 is connected to the side of the second stop part 312 and extends along the back side of the frame back plate 11. The limiting protrusion 3142 is connected to the end of the connecting arm 3141 away from the second stop part 312, so that the limiting protrusion 3142 can be engaged with the limiting hole 112.

[0068] Specifically, the limiting hole 112 can be connected to the irregular hole 111, or it can be set at intervals. The interval setting method can reduce the diameter of a single hole opened on the back panel 11 of the frame, which is beneficial to ensuring the strength of the back panel 11 of the frame itself.

[0069] The limiting part 314 provides a structure combining a connecting arm 3141 and a limiting protrusion 3142. By extending the connecting arm 3141, the limiting protrusion 3142 can be offset further away from the connecting post 313, thereby improving the anti-torsion capability provided by the limiting protrusion 3142 to the fixing member 31 when it engages with the limiting hole 112.

[0070] Furthermore, the limiting protrusion 3142 is a structure that needs to be snapped into the limiting hole 112. During the process of installing the fixing bracket 3 onto the back panel 11 of the frame, the limiting protrusion 3142 needs to be pressed against the back of the back panel 11 of the frame first. By rotating the fixing bracket 3, when the limiting protrusion 3142 is aligned with the limiting hole 112, the limiting protrusion 3142 can be embedded into the limiting hole 112. That is to say, during the installation process, the limiting protrusion 3142 will move relative to the connecting post 313. The connecting arm 3141 set in this solution can provide the limiting protrusion 3142 with the space for movement through its own deformation. Moreover, by utilizing the elastic recovery capability of the connecting arm 3141, when the limiting protrusion 3142 is aligned with the limiting hole 112, it can drive the limiting protrusion 3142 to snap into the limiting hole 112 through its own recovery.

[0071] In one embodiment, reference is made to Figure 6 A thinning groove 3143 is provided on the side of the connecting arm 3141 that is close to the back panel 11 of the frame. The thinning groove 3143 extends to the side where the connecting arm 3141 is connected to the second stop 312.

[0072] During installation, the limiting protrusion 3142 abuts against the surface of the frame back panel 11, and the connecting arm 3141 needs to bend backward relative to the second stop 312. The thinning groove 3143 provided on the front side of the connecting arm 3141 can disconnect the connection between the second stop 312 and the connecting arm 3141 on the front side, making it easier for the connecting arm 3141 to bend and deform backward relative to the second stop 312, and can also prevent the second stop 312 from lifting relative to the surface of the frame back panel 11 after the connecting arm 3141 bends.

[0073] In one embodiment, the fastener 31 is provided with at least two limiting portions 314, and at least two limiting portions 314 extend from the two opposite sides of the second stop portion 312 in opposite directions.

[0074] Limiting portions 314 are provided on both sides of the second stop portion 312 for rotational limiting, which can further improve the torsional resistance of the fixed bracket 3 and improve the reliability of the installation of the fixed bracket 3.

[0075] Regarding the rotational limitation of the fixed bracket 3 on the back side plate 11 of the frame, in another embodiment, a fixing plate extends from the side of the second stop portion 312, and a screw passes through the fixing plate and is locked to the back side plate 11 of the frame.

[0076] In the rear shell structure of a display device, it is generally not the case that the rear shell 2 lacks support points for screws on all four sides. For positions where screws can be directly used to fix the rear shell 2 from the back of the display device, screws are preferred to save the use of fixing brackets 3. However, for some rear shell 2 end plates that are flush with the outer edge of the frame 1, and where screws cannot be directly used to fix the rear shell 2 to the frame 1 from the back, fixing brackets 3 can be pre-set on the back side plate 11 of the frame to provide connection points.

[0077] For example, refer to Figure 1 , Figure 2 , Figure 11 and Figure 12 The diagram specifically illustrates the mounting structure of the small rear shell of the display device. This small rear shell includes a vertically connected rear shell panel 21 and a rear shell outer panel 22. The rear shell panel is parallel to the frame back panel 11, and its upper edge and side edges are provided with several positioning holes 211. Its upper edge connects to other rear shells (such as the back panel) on the display device, so screws can be directly used to pass through the positioning holes 211 and lock it to other rear shells. The positioning holes 211 on the side edges correspond to the back of the left and right frames, and screws can be directly used to lock them to the left and right sides. The lower rear shell outer panel 22 is perpendicular to the frame back panel 11 and is close to the outer frame outer panel 12 of the frame 1. There is not enough contact area between the rear shell outer panel 22 and the frame back panel 11, so it cannot be directly locked with screws. Therefore, several fixing brackets 3 can be arranged at intervals inside the frame back panel 11 near the rear shell outer panel 22. The fixing brackets 3 are used to connect the rear shell outer panel 22 from the inside, so as to lock the rear shell outer panel 22.

[0078] Regarding the connection form between the support member 32 and the rear shell 2, in one embodiment, the support member 32 includes a support plate 321 that connects to the second stop portion 312 and a protrusion 322 disposed on the support plate 321. The rear shell 2 is provided with a connection hole 221 corresponding to the protrusion 322. The protrusion 322 is embedded in the connection hole 221 to realize the snap-fit ​​connection between the rear shell 2 and the support member 32.

[0079] Specifically, as described above, in practical applications, the back cover 2 has fixed points on all four sides, similarly... Figure 1-2 Taking the structure shown as an example, the upper edge and left and right edges of the back cover 2 can be fixed with screws. Based on this, the back cover 2 can be locked to the back of the display device to prevent it from falling off. Even if no fixing point is set on the lower edge of the back cover 2 (i.e., the side where the outer panel 22 of the back cover is located), the stability of the installation of the back cover 2 will not be affected. However, since the back cover 2 is a long strip of thin plate structure, if a long section is not fixed, the back cover 2 is prone to bending deformation, which will lead to gaps between the outer panel 22 of the back cover and the frame 1. This affects both the appearance of the product and its dustproof capability.

[0080] In other words, when the only purpose is to fix the rear outer shell 22 and prevent it from bending backward on the side where it is located, it is only necessary to provide a limit to prevent the rear outer shell 22 from moving backward. Therefore, the support member 32 in this solution is configured as a structure consisting of a support plate 321 and a protruding post 322, as shown in the figure. Figure 4 The protrusion 322 is embedded in the connecting hole 221 of the rear shell 2, which can restrict the rear shell outer plate 22 from moving backward, thereby achieving the purpose of restricting the rear shell 2 from bending backward.

[0081] As can be seen from the above, the connection between the fixing bracket 3 and the rear shell 2 in this solution does not require the use of other parts; a single part can meet the connection and fixing requirements. Therefore, the fixing structure of this embodiment has the advantages of fewer parts, simple assembly, and low cost.

[0082] In addition, the height of the protrusion 322 can be set to not exceed the thickness of the rear shell 2, so that the protrusion 322 will not protrude from the outer surface of the rear shell 2.

[0083] In one embodiment, the frame 1 includes an outer frame plate 12 that is vertically connected to the outside of the frame back plate 11, and the rear shell 2 includes a rear shell outer plate 22 that is parallel to the outer frame plate 12, with a connecting hole 221 disposed on the rear shell outer plate 22.

[0084] Specifically, when frame 1 is the top frame, the outer frame plate 12 is the top frame plate on the top side of the back frame plate 11; when frame 1 is the bottom frame, the outer frame plate 12 is the bottom frame plate on the bottom side of the back frame plate 11; when frame 1 is the left frame, the outer frame plate 12 is the left frame plate on the left side of the back frame plate 11; when frame 1 is the right frame, the outer frame plate 12 is the right frame plate on the right side of the back frame plate 11.

[0085] The rear shell outer panel 22 is set parallel to the frame 12 outer panel, that is, perpendicular to the frame back panel 11. Since the rear shell outer panel 22 cannot be fixed to the frame back panel 11 with screws, the fixing bracket 3 of this solution is used for connection, which can solve the problem of the difficulty in fixing the rear shell outer panel 22.

[0086] In one embodiment, reference is made to Figure 10 The back panel 11 of the frame is provided with a receiving groove 113 on the side that is connected to the outer side panel of the frame, and the outer panel 22 of the rear shell extends into the receiving groove 113.

[0087] The rear outer panel 22 extends into the receiving groove 113, which can conceal the sharp edges of the rear outer panel 22 and optimize the appearance of the product.

[0088] In one embodiment, the fixing bracket 3 is an integrally injection-molded structure.

[0089] The fixed bracket 3 adopts an integral injection molding structure, which has the advantages of simple molding, low cost and high reliability.

[0090] In another embodiment, the support member 32 includes a support plate 321 that connects to the second stop part 312 and a nut disposed on the support plate 321. The rear shell 2 is provided with a connecting hole 221 corresponding to the nut. The screw passes through the connecting hole 221 and connects to the nut to achieve a fixed connection between the rear shell 2 and the support member 32.

[0091] A nut is provided on the support plate 321, and a screw is used to pass through the connection hole 221 of the rear shell 2 and then locked onto the nut. This can achieve a strong connection between the rear shell 2 and the fixed bracket 3. That is, the rear shell 2 can be completely fixed to the fixed bracket 3 by the screw, which effectively improves the reliability of the connection between the fixed bracket 3 and the rear shell 2.

[0092] On the other hand, an interactive flat panel is provided, including the aforementioned back cover fixing structure.

[0093] Specifically, the interactive flat panel includes a frame, a display panel, a backlight assembly, and a back cover. The display panel and backlight assembly are fixed within the frame, and the periphery of the back cover is fixed to the back side of the frame, thus covering the backlight assembly and other functional components. The connection between the back cover and the frame uses the back cover fixing structure of this embodiment, which helps to optimize the appearance of the interactive flat panel and enhance the product's competitiveness.

[0094] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0095] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0096] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0097] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A rear shell fixing structure, characterized in that: include: A frame (1), comprising a frame back side plate (11); A fixing bracket (3), comprising a connected fixing member (31) and a supporting member (32), wherein the fixing member (31) comprises a first stopper (311) and a second stopper (312) connected to each other, wherein the first stopper (311) and the second stopper (312) respectively abut against the front and back sides of the frame back side plate (11) to restrict the fixing member (31) to the frame back side plate (11); The rear shell (2) is connected to the support member (32) on its inner side, and the rear shell (2) is locked to the back side of the frame (1) through the fixing bracket (3).

2. The rear shell fixing structure according to claim 1, characterized in that: The fixing member (31) comprises a connecting column (313) connected between the first stop portion (311) and the second stop portion (312); the first stop portion (311) is a non-rotating body; a special-shaped hole (111) corresponding to the first stop portion (311) is provided on the back plate (11) of the frame; and the connecting column (313) is configured to pass through the special-shaped hole (111); so that the first stop portion (311) aligned with the special-shaped hole (111) can pass through the special-shaped hole (111), and the first stop portion (311) misaligned with the special-shaped hole (111) can be restricted to the front side of the back plate (11) of the frame.

3. The rear shell fixing structure according to claim 2, characterized in that: The matching form of the connecting column (313) and the special-shaped hole (111) is set so that the connecting column (313) can only move forward and backward or rotate in the special-shaped hole (111); and the first stopper (311) and the special-shaped hole (111) can be aligned or misaligned by rotating the fixing member (31).

4. The rear shell fixing structure according to claim 2, characterized in that: The first stop portion (311) comprises a base (3111) having the same shape as the connecting column (313) and at least two bosses (3112) evenly distributed around the base (3111); when the first stop portion (311) is misaligned with the special-shaped hole (111), the bosses (3112) can respectively abut the front surface of the back side plate (11) of the frame.

5. The rear shell fixing structure according to claim 2, characterized in that: The fixing member (31) further comprises a limiting portion (314), and a limiting hole (112) is correspondingly arranged on the back side plate (11) of the frame. The limiting portion (314) is engaged with the limiting hole (112) to limit the movement of the fixing member (31) along the back side plate (11) of the frame, thereby locking the fixing member (31) at a position where the first stop portion (311) and the second stop portion (312) respectively abut against the front and back sides of the back side plate (11) of the frame.

6. The rear shell fixing structure according to claim 5, characterized in that: The limiting hole (112) is spaced apart from the special-shaped hole (111); the limiting portion (314) comprises a connecting arm (3141) and a limiting convex buckle (3142); the connecting arm (3141) is connected to the side of the second stop portion (312) and extends along the back side of the frame back plate (11); the limiting convex buckle (3142) is connected to one end of the connecting arm (3141) away from the second stop portion (312), so that the limiting convex buckle (3142) can be buckled with the limiting hole (112).

7. The rear shell fixing structure according to claim 6, characterized in that: A thinning groove (3143) is provided on a side of the connecting arm (3141) close to the frame back plate (11), and the thinning groove (3143) extends to a side where the connecting arm (3141) is connected to the second stop portion (312).

8. The rear shell fixing structure according to claim 6, characterized in that: At least two of the limiting portions (314) are provided on the fixing member (31), and at least two of the limiting portions (314) extend from two back sides of the second stop portion (312) in opposite directions.

9. The rear housing fixing structure according to any one of claims 1 to 8, characterized in that: The support member (32) comprises a support plate (321) connected to the second stop portion (312) and a boss (322) arranged on the support plate (321); a connection hole (221) corresponding to the boss (322) is provided on the rear shell (2); the boss (322) is embedded in the connection hole (221), thereby realizing a snap connection between the rear shell (2) and the support member (32).

10. The rear shell fixing structure according to claim 9, characterized in that: The frame (1) comprises a frame outer plate (12) vertically connected to the outer side of the frame back plate (11); the rear shell (2) comprises a rear shell outer plate (21) arranged parallel to the frame outer plate (12); and the connection hole (221) is arranged on the rear shell outer plate (21).

11. The rear shell fixing structure according to claim 10, characterized in that: A receiving groove (113) is provided on the side of the frame back side plate (11) close to the side connected to the frame outer side plate (12), and the rear shell outer plate (21) extends into the receiving groove (113).

12. The rear shell fixing structure according to claim 9, characterized in that: The fixing bracket (3) is an integral injection-molded structure.

13. The rear housing fixing structure according to any one of claims 1 to 8, characterized in that: The support member (32) comprises a support plate (321) connected to the second stopper (312) and a nut arranged on the support plate (321); a connection hole (221) corresponding to the nut is provided on the rear shell (2); a screw passes through the connection hole (221) and connects the nut, thereby achieving fixed connection between the rear shell (2) and the support member (32).

14. An interactive tablet, characterized in that: It comprises the rear shell fixing structure described in any one of claims 1-13.

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