Buckling connection structure of large screen shell

Abstract

The invention discloses a buckling connection structure of a large-screen shell in the field of display devices, which comprises a display screen, a front panel and a rear cover plate, the display screen is preassembled and fixed on the front panel, a middle frame is arranged at the outer edge between the front panel and the rear cover plate, the middle frame comprises an outer side edge perpendicular to the display screen and an inner side edge parallel to the display screen, and the outer side edge and the inner side edge are arranged in parallel. The outer side edge and the inner side edge form a concave position capable of containing the front panel, the front panel is integrally arranged in the concave position of the middle frame, the rear side of the front panel abuts against the middle frame, the front edge of the rear cover plate abuts against the rear end of the outer side edge, a plurality of inserting holes are formed in the connecting position of the inner side edge and the outer side edge, and a hook head extending out of the front panel is arranged on the inner side of the rear cover plate. A hook groove is formed in the edge of the outer side of the front panel, and the hook head penetrates through the corresponding part of the insertion hole to be connected with the hook groove. The process of hot riveting is omitted, the cost is saved, meanwhile, the overall thickness can be reduced, and the method is suitable for large-screen display terminal equipment.

Description

Technical Field

[0001] This invention relates to a display device, and more particularly to a connection structure for the housing of a large-screen display device. Background Technology

[0002] Currently, display screen customers often require two or more colors to complement the exterior design, while also demanding a thinner overall screen. To achieve this, the common method is to heat-rivet different colored parts for the front and back covers to form a single assembly, which is then assembled with the internal components. The conventional design involves using multiple riveting points to heat-rivet the front and back covers to create two colors. This connection mechanism allows the two colored parts to form a single assembly. Because the riveting points are evenly distributed and sufficient in number, it can meet the strength and appearance requirements of the combined components. However, because the assembly is a single unit after heat riveting, rework and disassembly are not possible. If a part has an appearance problem during transportation and production, the entire assembly must be scrapped. Furthermore, the heat riveting process itself incurs additional costs, making it uneconomical. During heat riveting, the front and back covers need a certain plastic wall thickness to allow the riveting points to connect the two parts. This prevents the achievement of the thickness reduction requirements currently demanded for large screens.

[0003] Therefore, how to achieve a compact structure, meet the technical requirements of large screen size and thinness, multiple color combinations, and reworkability on a display screen is a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a snap-fit ​​connection structure for a large screen housing, which meets the technical requirements of compact structure, large screen with thinness, multiple color combinations, and removability for rework.

[0005] Therefore, the technical solution of the present invention is as follows: a snap-fit ​​connection structure for a large screen housing, including a display screen, a front panel, and a rear cover plate. The display screen is pre-installed and fixed on the front panel. A middle frame is provided at the outer edge between the front panel and the rear cover plate. The middle frame includes an outer side perpendicular to the display screen and an inner side parallel to the display screen. The outer side and the inner side form a recess that can accommodate the front panel. The front panel is entirely disposed in the recess of the middle frame. The rear side of the front panel abuts against the middle frame. The front edge of the rear cover plate abuts against the rear end of the outer side. A plurality of insertion holes are provided at the connection position between the inner side and the outer side. The inner side of the rear cover plate is provided with a hook extending out to the front panel. The outer edge of the front panel is provided with a hook groove. The hook passes through the corresponding insertion holes and connects with the hook groove.

[0006] After installation, the front panel is completely enclosed by the middle frame, which connects to the rear cover plate via hooks and grooves. Simultaneously, the front panel and rear cover plate clamp the middle frame from both front and rear directions, forming a unified whole. This ensures a secure connection and easy assembly / disassembly; the hooks and grooves can be detached through localized elastic deformation. The front panel, rear cover plate, and middle frame can be made of materials of different colors. Compared to existing technologies, this invention eliminates the hot riveting process, saving costs and reducing the overall thickness, thus meeting the technical requirements of compact structure, large screen with thinness, multiple color combinations, and reworkability. This solution is suitable for large-screen display terminal equipment.

[0007] A further improvement of the present invention is that the insertion holes are provided in multiple sets along the inner periphery, each set of insertion holes including a first insertion hole, a second insertion hole and a third insertion hole, and the hook head passes through the second insertion hole and is connected to the hook groove.

[0008] A further improvement of the present invention is that a slot is provided on the outer edge of the front panel and in front of the hook groove, and a locking block extending inward into the middle frame is provided on the middle frame at the second insertion hole position, the locking block engaging with the slot. The engagement of the locking block with the slot can further and better secure the front panel and the middle frame.

[0009] A further improvement of the present invention is that the third insertion hole position is provided with an L-shaped tenon, the free end of which extends towards the front panel. A corresponding tenon groove is provided on the front panel. When the locking block engages with the groove, the tenon is inserted into the tenon groove. The engagement of the tenon and the tenon groove prevents the front panel from wobbling up, down, left, or right within the middle frame, allowing for better positioning. Furthermore, the tenon and the tenon groove position the front panel and the middle frame in the front-back direction. When the locking block engages with the groove, the tenon is precisely inserted into the bottom of the tenon groove.

[0010] A further improvement of this invention is that an L-shaped tenon is provided on the rear cover plate corresponding to the position of the first insertion hole. The tenon is located on the inner side wall of the rear cover plate, with its free end facing the front panel. A mortise is provided on the front panel. When the hook head is connected to the mortise, the tenon is inserted into the mortise. Similarly, the insertion of the tenon into the mortise allows for positioning of the rear cover plate and the middle frame from the top, bottom, left, right, front, and rear directions, preventing relative movement between them and ensuring a tight and secure installation.

[0011] To ensure a stable connection, the second socket in each set of sockets is located between the first and third sockets. This ensures that tenons one and two are distributed on both sides of the hook and the locking block. During installation, tenons one and two act as guides, ensuring a firm and convenient connection between the hook and the groove, and between the locking block and the groove.

[0012] Furthermore, at least one set of insertion holes is provided on each side of the middle frame, and at least one hook slot and card slot are provided on each side.

[0013] The rear end cover, front panel, and middle frame can be made of flexible plastic or metal materials.

[0014] To facilitate the connection between the hook head and the hook groove, and between the locking block and the locking groove, the solid edges constituting the hook groove and the locking groove are provided with guide portions, and the hook head and the locking block are also provided with corresponding guide portions. The guide portions are preferably chamfered or rounded. Attached Figure Description

[0015] Figure 1 This is an exploded view of the structure of the present invention.

[0016] Figure 2 This is a rear view of the invention, showing the planar structure at the rear end cover location.

[0017] Figure 3 for Figure 2 A partial view of AA.

[0018] Figure 4 To and Figure 2 The assembly exploded view corresponding to position AA in the middle.

[0019] Figure 5 This is a 3D view of the front panel and the middle frame assembly.

[0020] Figure 6 To and Figure 5 The corresponding exploded view of the front panel and mid-frame assembly.

[0021] Figure 7 This is a partial structural diagram of the middle frame.

[0022] Figure 8 This is a 3D view of the rear cover and the middle frame assembly.

[0023] Figure 9 To and Figure 8 The corresponding exploded view of the rear cover and mid-frame assembly.

[0024] In the diagram, 1 is the rear cover plate, 101 is the hook head, 102 is the front edge of the rear cover plate, 103 is the second tenon, 2 is the middle frame, 201 is the outer side, 202 is the inner side, 203 is the locking block, 204 is the rear end of the outer side, 205 is the second insertion hole, 206 is the first insertion hole, 207 is the first tenon, 208 is the third insertion hole, 3 is the front panel, 301 is the hook groove, 302 is the locking groove, 303 is the first tenon groove, 304 is the second tenon groove, and 4 is the display screen. Detailed Implementation

[0025] The front and rear positions described in this invention refer to the position of the display screen facing the user, where the display screen is in the front and the rear cover is in the rear. The specific limitation of the direction described in this invention is only to express its structure and the positional relationship between them, and does not constitute a limitation on its specific orientation.

[0026] like Figure 1-9 As shown, a snap-fit ​​connection structure for a large screen housing includes a display screen 4, a front panel 3, and a rear cover 1. The display screen 4 is pre-installed and fixed on the front panel 3. A middle frame 2 is provided at the outer edge between the front panel 3 and the rear cover 1. The middle frame 2 includes an outer side 201 perpendicular to the display screen 4 and an inner side 202 parallel to the display screen 4. The outer side 201 and the inner side 202 form a recess that can accommodate the front panel 3. The front panel 3 is entirely set in the recess of the middle frame 2. The rear side of the front panel 3 abuts against the middle frame 2. The front edge 102 of the rear cover abuts against the rear end 204 of the outer side. Several insertion holes are provided at the connection position between the inner side 202 and the outer side 201. The inner side of the rear cover 1 is provided with a hook head 101 extending to the front panel 3. The outer edge of the front panel 3 is provided with a hook groove 301. The hook head 101 passes through the corresponding insertion holes and connects with the hook groove 301.

[0027] Multiple sets of sockets are arranged around the inner side 202. Each set of sockets includes a first socket 206, a second socket 205 and a third socket 208. The hook head 101 passes through the second socket 205 and is connected to the hook groove 301.

[0028] A slot 302 is provided on the outer edge of the front panel 3, in front of the hook groove 301. A locking block 203 extending into the middle frame 2 is provided at the second insertion hole 205 position. The locking block 203 is engaged with the slot 302. The engagement of the locking block 203 with the slot 302 can further and better fix the front panel 3 and the middle frame 2.

[0029] The third insertion hole 208 is provided with an L-shaped tenon 207, the free end of which extends towards the front panel 3. The front panel 3 is provided with a corresponding mortise 303. When the locking block 203 is engaged with the locking groove 302, the tenon 207 is inserted into the mortise 303. The engagement of the tenon 207 and the mortise 303 can prevent the front panel 3 from wobbling up and down or left and right within the middle frame 2, thus better positioning it. On the other hand, the tenon 207 and the mortise 303 can position the front panel 3 and the middle frame 2 in the front-back direction. When the locking block 203 is engaged with the locking groove 302, the tenon 207 is precisely inserted into the bottom of the mortise 303.

[0030] An L-shaped tenon 103 is provided on the rear cover plate 1, corresponding to the position of the first insertion hole 206. The tenon 103 is located on the inner side wall of the rear cover plate 1, with its free end facing the front panel 3. The front panel 3 is provided with a mortise 304. When the hook head 101 is connected to the mortise 301, the tenon 103 is inserted into the mortise 304. Similarly, the insertion of the tenon 103 into the mortise 304 allows for positioning of the rear cover plate 1 and the middle frame 2 from the top, bottom, left, right, front, and rear directions, preventing relative movement between the two and ensuring a tight and secure installation.

[0031] To ensure a stable connection, the second insertion hole 205 in each set of insertion holes is located between the first insertion hole 206 and the third insertion hole 208. This ensures that the tenon 1 207 and the tenon 2 103 are distributed on both sides of the hook head 101 and the locking block 203. During installation, the tenon 1 207 and the tenon 2 103 act as guides, ensuring that the hook head 101 and the hook groove 301, and the locking block 203 and the locking groove 302 are firmly and easily connected.

[0032] The middle frame 2 has at least one set of holes on each side, and the hook slot 301 and the card slot 302 are provided on each side at least once.

[0033] The rear cover, front panel 3, and middle frame 2 can be made of flexible plastic or metal materials.

[0034] To facilitate the connection between the hook head 101 and the hook groove 301, and between the locking block 203 and the locking groove 302, guide portions are provided on the solid edges constituting the hook groove 301 and the locking groove 302, and corresponding guide portions are also provided on the hook head 101 and the locking block 203. The guide portions are preferably chamfered or rounded.

[0035] During installation, the front panel 3, middle frame 2, and rear panel are placed sequentially from front to back. The front panel 3 and middle frame 2 can be assembled first, allowing the locking block 203 to engage with the locking groove 302. Then, the rear cover plate 1 is installed, and pushing the rear cover plate 1 causes the hook head 101 to partially deform and engage with the hook groove 301. The first tenon 207 is inserted into the first mortise 303, and the second tenon 103 is inserted into the second mortise 304. After assembly, the front panel 3 is completely enclosed by the middle frame 2, which is connected to the rear cover plate 1 via the hook head 101 and hook groove 301. Simultaneously, the front panel 3 and rear cover plate 1 clamp the middle frame 2 from both front and rear directions, forming a unified whole. The connection is strong, and disassembly and assembly are convenient; the hook head 101 can be separated from the hook groove 301 through only localized elastic deformation. The front panel 3, rear cover plate 1, and middle frame 2 can be made of materials of different colors. This solution eliminates the need for hot riveting, saving costs and reducing overall thickness, thus meeting the technical requirements of compact structure, large screen with thinness, multiple color combinations, and reworkability. It is suitable for large-screen display terminal equipment.

[0036] This invention is not limited to the above embodiments. Based on the technical solutions disclosed in this invention, those skilled in the art can make some substitutions and modifications to some of the technical features without creative effort, and all such substitutions and modifications are within the protection scope of this invention.

Claims

1. A snap-fit connection structure of a large-screen housing, comprising a display screen, a front panel and a back cover plate, the display screen being pre-installed and fixed on the front panel, characterized in that, The outer edge between the front panel and the back cover is provided with a middle frame, which includes an outer side perpendicular to the display screen and an inner side parallel to the display screen, the outer side and the inner side form a recess capable of accommodating the front panel, the front panel is arranged in the recess of the middle frame as a whole, the rear side of the front panel abuts against the middle frame, the front edge of the back cover abuts against the rear end of the outer side, a plurality of insertion holes are arranged at the connection position of the inner side and the outer side, the inner side of the back cover is provided with a hook head extending towards the front panel, the outer edge of the front panel is provided with a hook groove, and the hook head is connected with the hook groove through the corresponding insertion hole.

2. The snap connection structure of a large screen housing according to claim 1, characterized in that: The insertion holes are arranged in multiple groups along the periphery of the inner side, each group of insertion holes includes a first insertion hole, a second insertion hole and a third insertion hole, and the hook head is connected with the hook groove through the second insertion hole.

3. The snap connection structure of a large screen housing according to claim 2, characterized in that: The outer edge of the front panel is provided with a clamping groove in front of the hook groove, and the middle frame is provided with a clamping block extending into the middle frame at the position of the second insertion hole, and the clamping block is connected with the clamping groove in a clamping manner.

4. The snap connection structure of a large screen housing according to claim 3, characterized in that: The third insertion hole is provided with an L-shaped insertion tenon one, the free end of the L-shaped insertion tenon one extends towards the front panel, and the front panel is correspondingly provided with a mortise one, when the clamping block is connected with the clamping groove in a clamping manner, the insertion tenon one is inserted into the mortise one.

5. The snap connection structure of a large screen housing according to claim 4, characterized in that: The back cover is provided with an L-shaped insertion tenon two corresponding to the position of the first insertion hole, the insertion tenon two is arranged on the inner side wall of the back cover, the free end of the insertion tenon two faces the front panel, and the front panel is correspondingly provided with a mortise two, when the hook head is connected with the hook groove, the insertion tenon two is inserted into the mortise two.

6. The snap-fit connection structure of a large-screen housing according to claim 5, characterized in that: The second insertion hole in each group of insertion holes is located between the first insertion hole and the third insertion hole.

7. The snap connection structure of a large screen housing according to claim 5, wherein: The insertion holes on the middle frame are arranged in at least one group on each side, and the hook groove and the clamping groove are arranged on each side in at least one.

8. The snap connection structure of a large screen housing according to claim 5, wherein: The back cover, the front panel and the middle frame are made of plastic or metal materials with elasticity.

9. The snap connection structure of a large screen housing according to claim 5, wherein: The entity edges constituting the hook groove and the clamping groove are provided with guide portions, and the hook head and the clamping block are also correspondingly provided with guide portions.

10. The snap-fit connection structure of a large-screen housing according to claim 9, characterized in that: The guide portions are chamfers or circular arcs.

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