A display screen back cover strength increasing assembly

Abstract

The utility model discloses a display screen back cover strength increases subassembly, include: back cover substrate, the recess is integrally formed on the inner surface of back cover substrate, and the reinforcing structure is inserted in the recess, the reinforcing structure includes two distribution in the back cover substrate inside opposite sides and inserts the anti -twist triangle area of recess, the utility model discloses through integrated reinforcing structure, and the torsional rigidity of display screen back cover is insufficient under asymmetric load is solved pertinently. By anchoring two anti -twist triangle area in the recess of back cover substrate opposite sides respectively, the main frame reinforcing rib provides the rigid support of frame, and the first and second inclined reinforcing rib will outside impact force flow high -efficiently guide triangle area vertex, through the S -shaped reinforcing rib ( by the curved section of the last section of a number of connections constitutes) of the connection between vertex forms continuous elastic path, absorbs torsional load and evenly dispersed stress, restrains the corrugated deformation of substrate, thereby eliminates screen deviation, backlight dislocation and sealing failure risk.

Description

Technical Field

[0001] This utility model is a component for increasing the strength of a display screen back cover, belonging to the technical field of display screen back cover. Background Technology

[0002] In modern electronic devices such as LCD monitors, smart TVs, and portable terminals, the display screen back cover serves as a critical structural component, undertaking the core functions of protecting internal optical modules and circuit components while maintaining overall rigidity. Its design must balance lightweight and high strength to withstand transportation vibrations, installation stresses, and accidental user pressure, ensuring the long-term reliability and aesthetic integrity of the device.

[0003] Existing display screen back covers mostly adopt a single thin-walled substrate structure, relying on surface embossing or local spot welding reinforcement to improve rigidity. However, when the back cover is subjected to asymmetrical external forces (such as unilateral impact or bending load), stress tends to concentrate in the corner areas, leading to plastic deformation or microcracks in the substrate; At the same time, the lack of an effective force flow dispersion mechanism makes the central area prone to wavy instability under torsional loads, leading to faults such as screen offset, backlight module misalignment, and sealing failure. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a display screen back cover strength enhancement component to solve the problems of the existing technology.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A display screen back cover strength enhancement component includes: a back cover substrate, wherein a groove is integrally formed on the inner surface of the back cover substrate, and a reinforcing structure is inserted into the groove; The reinforcing structure includes two anti-torsional triangular regions distributed on opposite sides inside the rear cover substrate and inserted into the groove; The anti-torsional triangle region is composed of a main frame reinforcing rib, a first inclined reinforcing rib, and a second inclined reinforcing rib. One end of the first inclined reinforcing rib and the second inclined reinforcing rib are respectively connected to two different endpoints on the main frame reinforcing rib, and the other ends of the two extend toward the center of the rear cover substrate and converge at the vertex of the triangular area. Between the vertices of the two opposing anti-torsional triangles, there are multiple S-shaped reinforcing ribs connected end to end.

[0006] As a further improvement, the first inclined reinforcing rib and the second inclined reinforcing rib, together with the main frame reinforcing rib connected thereto, form an isosceles triangle.

[0007] As a further improvement, a plurality of auxiliary rods are vertically arranged on the side of the first inclined reinforcing rib / second inclined reinforcing rib; the auxiliary rods are vertically welded to the first inclined reinforcing rib / second inclined reinforcing rib, and the other end of the auxiliary rods is inserted into the groove; The length of the auxiliary rod increases sequentially from the main frame reinforcing rib to the apex of the triangular area.

[0008] As a further improvement, a thickened node is formed at the connection between the end of the S-shaped reinforcing rib and the connection between the first inclined reinforcing rib and the second inclined reinforcing rib and the main frame reinforcing rib.

[0009] As a further improvement, the thickened part of the node is a raised structure in the shape of a spherical crown or an ellipsoidal crown.

[0010] As a further improvement, the ends of the two main frame reinforcing ribs are connected by side reinforcing ribs, so that the side reinforcing ribs and the two different groups of first inclined reinforcing ribs form a triangular structure.

[0011] As a further improvement, a local reinforcement unit is also provided on the back cover substrate at the position corresponding to the opening of the functional area. The local reinforcement unit includes a reinforcing rib surrounding the screw post and the camera opening, and the reinforcing rib is connected to the adjacent main frame reinforcing rib, inclined reinforcing rib or S-shaped reinforcing rib.

[0012] As a further improvement, the cross-section of the main frame reinforcing rib is arched, trapezoidal, or T-shaped, and its height is higher than that of the first inclined reinforcing rib, the second inclined reinforcing rib, and the S-shaped reinforcing rib.

[0013] As a further improvement, the shape of the groove is set to correspond to the position and depth of the main frame reinforcing rib, the first inclined reinforcing rib, the second inclined reinforcing rib, the S-shaped reinforcing rib, the supplementary rib, and the auxiliary rod.

[0014] Beneficial effects: This invention addresses the issues of insufficient torsional resistance, stress concentration, and central instability of the display screen back cover under asymmetrical loads through an integrated reinforced structure. Two torsional-resistant triangular zones are anchored in grooves on opposite sides of the back cover substrate, while the main frame reinforcement provides rigid support. The first and second inclined reinforcements efficiently guide external impact forces to the apex of the triangular zones. The S-shaped reinforcing ribs (composed of multiple curved segments connected end to end) formed between the vertices create a continuous elastic path, absorbing torsional loads and uniformly distributing stress, suppressing corrugated deformation of the substrate, thereby eliminating the risks of screen offset, backlight misalignment and seal failure.

[0015] This component is integrated into the back cover substrate during the manufacturing stage. The groove is integrally injection molded onto the inner surface of the substrate, and the reinforcing structure (including anti-torsional triangular area and S-shaped rib) is prefabricated and directly inserted into the groove without the need for additional welding or fasteners; During assembly, simply snap the complete back cover onto the display frame to achieve full-path force transmission, greatly simplifying the production process and ensuring structural consistency.

[0016] Compared to traditional solutions that rely on thickening the substrate or using external metal supports, this approach abandons the passive compensation method and achieves active torsional resistance through geometric topology optimization. Specifically, the triangular area provides rigid anchor points, and the S-shaped ribs bridge the central area to form a dynamic balance, completely avoiding the dramatic increase in weight caused by thickening and the assembly complexity introduced by the support. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the internal structure of a display screen back cover strength enhancement component according to the present invention.

[0019] Figure 2 yes Figure 1 Enlarged structural diagram at point A in the middle.

[0020] Figure 3 yes Figure 1 Enlarged side view of the structure at point B.

[0021] Figure 4 yes Figure 2 Enlarged structural diagram at point C.

[0022] Figure 5 yes Figure 2 An enlarged structural schematic diagram of another embodiment at point C.

[0023] Figure 6 yes Figure 2 An enlarged structural schematic diagram of another embodiment at point C.

[0024] 1. Back cover substrate; 11. Groove; 2. Main frame reinforcing rib; 21. Side reinforcing rib; 31. First inclined reinforcing rib; 32. Second inclined reinforcing rib; 4. S-shaped reinforcing rib; 5. Auxiliary rod; 6. Node thickened part; 81. Screw post; 82. Reinforcing rib; 83. Camera opening. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Reference Figure 1-6 As shown, a display screen back cover strength enhancement component includes: a back cover substrate 1, wherein a groove 11 is integrally formed on the inner surface of the back cover substrate 1, and a reinforcing structure is inserted into the groove 11. The reinforcing structure includes two anti-torsional triangular regions distributed on opposite sides inside the rear cover substrate 1 and inserted into the groove 11; The anti-torsional triangle region is composed of a main frame reinforcing rib 2, a first inclined reinforcing rib 31, and a second inclined reinforcing rib 32. One end of the first inclined reinforcing rib 31 and the second inclined reinforcing rib 32 are respectively connected to two different endpoints on the main frame reinforcing rib 2, and the other ends of the two extend toward the center of the rear cover substrate 1 and converge at the vertex of the triangular area. Between the vertices of the two opposing torsional triangular regions, there are multiple S-shaped reinforcing ribs 4 connected end to end.

[0028] By integrating and reinforcing the structure, the problems of insufficient torsional resistance, stress concentration, and central instability of the display screen back cover under asymmetrical loads are specifically addressed. By anchoring two torsional triangular zones into the grooves 11 on opposite sides of the back cover substrate 1, the main frame reinforcing rib 2 provides rigid support for the frame, and the first and second inclined reinforcing ribs 32 efficiently guide the external impact force flow to the apex of the triangular zone; The S-shaped reinforcing ribs 4 (composed of multiple connected curved segments) form a continuous elastic path, which absorbs torsional loads and evenly distributes stress, suppressing the corrugated deformation of the substrate, thereby eliminating the risks of screen offset, backlight misalignment and seal failure.

[0029] The component is integrated into the back cover substrate 1 during the manufacturing stage. The groove 11 is integrally molded into the inner surface of the substrate by injection molding. The reinforcing structure (including the anti-torsion triangle area and S-shaped rib) is prefabricated and directly inserted into the groove 11 without the need for additional welding or fasteners. During assembly, simply snap the complete back cover onto the display frame to achieve full-path force transmission, greatly simplifying the production process and ensuring structural consistency.

[0030] Compared to traditional solutions that rely on thickening the substrate or external metal supports, this approach abandons the passive compensation approach and achieves active torsional resistance through geometric topology optimization. Specifically, the triangular area provides rigid anchor points, and the S-shaped ribs bridge the central area to form a dynamic balance, completely avoiding the dramatic increase in weight caused by thickening and the assembly complexity introduced by the support. Under the same load, the deformation is reduced by more than 40%, and the material cost is reduced by 25%, providing an uncompromising solution for lightweight and highly reliable displays.

[0031] As a further improvement, the first inclined reinforcing rib 31 and the second inclined reinforcing rib 32 together with the main frame reinforcing rib 2 connected thereto form an isosceles triangle.

[0032] In the torsional triangle region, the first inclined reinforcing rib 31, the second inclined reinforcing rib 32, and the main frame reinforcing rib 2 together form an isosceles triangle, whose geometric symmetry ensures a highly balanced stress distribution. When the back cover is subjected to asymmetrical loads, this configuration transmits the impact force evenly to the main frame along the equal-length inclined side, eliminating stress concentration points and significantly improving structural stiffness (measured torsional stiffness increased by more than 15%), while reducing material usage to achieve lightweighting.

[0033] The isosceles triangular anti-torsional unit is precision injection molded and then inserted into the pre-set groove 11 of the back cover substrate 1, forming a complete force flow network with the S-shaped reinforcing rib 4 between the vertices. This effectively solves the problems of plastic deformation of the back cover, screen displacement, and seal failure that easily occur in existing devices under unilateral impact or bending conditions, ensuring long-term reliability. Compared with traditional asymmetric reinforcement methods, its symmetrical topology reduces deformation by 25% and eliminates the need for additional substrate thickness or support brackets, achieving high torsional performance while maintaining low weight.

[0034] As a further improvement, a plurality of auxiliary rods 5 are vertically arranged on the side of the first inclined reinforcing rib 31 / the second inclined reinforcing rib 32; the auxiliary rods 5 are vertically welded to the first inclined reinforcing rib 31 / the second inclined reinforcing rib 32, and the other end of the auxiliary rods 5 is inserted into the groove 11. The length of the auxiliary rod 5 increases sequentially from the main frame reinforcing rib 2 to the apex of the triangular area.

[0035] Multiple auxiliary rods 5 are vertically welded to the sides of the first and second inclined reinforcing ribs 32 in the anti-torsional triangle region, with their free ends embedded in the grooves 11 on the inner surface of the back cover substrate 1. The length of the auxiliary rods 5 increases along the direction from the main frame reinforcing rib 2 to the apex of the triangle region, forming a gradient support layout.

[0036] During manufacturing, the component is injection molded so that the groove 11 is formed on the inclined reinforcing rib, and the auxiliary rod 5 is pre-welded to the reinforcing rib and then inserted into place as a whole without the need for additional fastening.

[0037] This addresses the issues of thin-wall buckling and stress localization that easily occur in the rear cover under dynamic loads (such as transportation vibrations or localized impacts).

[0038] The progressively longer auxiliary rods 5 provide adaptive support. The rods are shorter near the main frame area to suppress micro-deformation at the edges; the extended rods extending towards the apex enhance the stiffness of the central area, effectively blocking the propagation of corrugated instability and preventing screen shift and sealing interface failure. Compared to uniform length supports, the gradient configuration reduces local stress peaks by more than 30%, while reducing material redundancy and maintaining lightweight characteristics.

[0039] As a further improvement, a thickened node 6 is formed at the connection point between the end of the S-shaped reinforcing rib 4 and the first inclined reinforcing rib 31 and the second inclined reinforcing rib 32 and the main frame reinforcing rib 2. The thickened node 6 is a raised structure in the shape of a spherical crown or an ellipsoidal crown.

[0040] A spherical or ellipsoidal crown-shaped raised structure is added at the connection between the end of the S-shaped reinforcing rib 4 and the first, second, and second inclined reinforcing ribs 32 and the main frame reinforcing rib 2.

[0041] During manufacturing, this node is integrally formed into the reinforcing rib assembly through injection molding or welding. During assembly, it is embedded into the groove 11 of the back cover substrate 1 along with the overall structure, requiring no additional processes. This feature addresses the stress concentration problem that easily occurs in connection nodes under dynamic loads (such as frequent vibration or impact). Traditional right-angle transition areas are prone to microcracks, leading to structural failure, seal leakage, and screen positioning misalignment. The spherical crown-shaped bulge smooths the force flow path, disperses peak stress (measured to reduce it by more than 40%), inhibits crack initiation, and significantly improves fatigue life.

[0042] As a further improvement, the ends of the two main frame reinforcing ribs 2 are connected by side reinforcing ribs 21, so that the side reinforcing ribs 21 and the two different groups of first inclined reinforcing ribs 31 form a triangular structure. Local reinforcement units are also provided on the rear cover substrate 1 at the positions corresponding to the functional area openings; The local reinforcement unit includes a reinforcing rib 82 surrounding the screw post 81 and the camera opening 83. The reinforcing rib 82 is connected to the adjacent main frame reinforcing rib 2, inclined reinforcing rib or S-shaped reinforcing rib 4.

[0043] A closed triangular frame is formed by rigidly connecting the ends of the two main frame reinforcing ribs 2 through the side reinforcing ribs 21.

[0044] During manufacturing, the structure is pre-formed along with the anti-torsional triangle area. During assembly, it is integrally embedded into the groove 11 of the back cover substrate 1 without additional fixation. This solves the problem of frame instability under extreme bending or impact loads on the back cover: the triangular frame strengthens the overall integrity of the frame, efficiently transfers torsional loads to the S-shaped reinforcing rib 4, suppresses substrate torsional deformation, avoids misalignment of internal optical modules and failure of the sealing interface, and improves torsional stiffness by 20% in actual measurements.

[0045] For functional area openings (such as screw posts 81 and camera holes), local reinforcement units are added to the corresponding locations on the substrate. These units consist of reinforcing ribs 82 surrounding the opening, with one end tightly connected to the adjacent main frame reinforcing ribs 2, inclined reinforcing ribs, or S-shaped reinforcing ribs 4, and the other end anchored to the substrate. During production, the reinforcing ribs 82 are integrally molded with the substrate via injection molding, directly integrated after the opening is machined. This eliminates the risk of plastic deformation and microcracks caused by stress concentration at the opening edges. Under vibration or assembly stress, the reinforcing ribs 82 distribute the load to the global reinforcement network, ensuring the stability of the camera's optical axis, the long-lasting fastening force of the screw posts 81, and preventing functional failure and seal leakage. Compared to unreinforced opening areas, local stiffness is increased by 35%, while avoiding additional weight gain.

[0046] As a further improvement, the cross-section of the main frame reinforcing rib 2 is arched, trapezoidal, or T-shaped, and its height is higher than that of the first inclined reinforcing rib 31, the second inclined reinforcing rib 32, and the S-shaped reinforcing rib 4.

[0047] In an embodiment, such as Figure 4 As shown, the cross-sections of the main frame reinforcing rib 2, the first inclined reinforcing rib 31, the second inclined reinforcing rib 32, and the S-shaped reinforcing rib 4 are trapezoidal. In another embodiment, as shown... Figure 5 As shown, its cross-section is arched. In another embodiment, as... Figure 6 As shown, its cross-section is T-shaped.

[0048] The shape of the groove 11 corresponds to the position and depth of the main frame reinforcing rib 2, the first inclined reinforcing rib 31, the second inclined reinforcing rib 32, the S-shaped reinforcing rib 4, the supplementary reinforcing rib 82, and the auxiliary rod 5.

[0049] By employing an arched, trapezoidal, or T-shaped cross-section for the main frame reinforcing rib 2, and with a height significantly higher than the first inclined reinforcing rib 31, the second inclined reinforcing rib 32, and the S-shaped reinforcing rib 4, this morphology imparts a higher section modulus of bending resistance. This effectively resists bending deformation when subjected to concentrated loads in the frame area. Simultaneously, as the main load-bearing skeleton, it guides the force flow to be efficiently transferred to the internal reinforcing network, preventing local collapse or permanent deformation.

[0050] The groove 11 is integrally formed on the inner surface of the back cover substrate 1, and its outline is precisely matched with the spatial position, height and extension depth of the main frame reinforcing rib 2, inclined reinforcing rib, S-shaped reinforcing rib 4, reinforcing rib 82 and auxiliary rod 5.

[0051] During assembly, the overall reinforced structure can be precisely embedded into the corresponding groove 11, achieving a gapless fit and avoiding loosening or stress displacement. This fit ensures that the load is continuously transmitted along the preset path, eliminating local stress concentration caused by structural misalignment, and significantly improving the overall rigidity and durability of the back cover. Especially under conditions of repeated disassembly and assembly, transportation vibration, or asymmetric impact, it maintains the positioning accuracy of the optical module and the sealing integrity of the housing.

[0052] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0053] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A display screen back cover strength enhancement component, characterized in that, include: The back cover substrate (1) has a groove (11) integrally formed on its inner surface, and a reinforcing structure is inserted into the groove. The reinforcing structure includes two anti-torsion triangular regions distributed on opposite sides inside the rear cover substrate (1) and inserted into the groove; The anti-torsional triangle region is composed of a main frame reinforcing rib (2), a first inclined reinforcing rib (31), and a second inclined reinforcing rib (32); One end of the first inclined reinforcing rib (31) and the second inclined reinforcing rib (32) are respectively connected to two different endpoints on the main frame reinforcing rib (2), and the other ends of the two extend toward the center of the rear cover substrate (1) and converge at the vertex of the triangular area; Between the vertices of the two opposing anti-torsional triangles, there are multiple S-shaped reinforcing ribs (4) connected end to end.

2. The display screen back cover strength enhancement component according to claim 1, characterized in that: The first inclined reinforcing rib (31) and the second inclined reinforcing rib (32) together with the main frame reinforcing rib (2) connected to it form an isosceles triangle.

3. The display screen back cover strength enhancement component according to claim 1, characterized in that: On the side of the first inclined reinforcing rib (31) / the second inclined reinforcing rib (32), a plurality of auxiliary rods (5) are vertically arranged; the auxiliary rods (5) are vertically welded to the first inclined reinforcing rib (31) / the second inclined reinforcing rib (32), and the other end of the auxiliary rods (5) is inserted into the groove (11); Among them, the length of the auxiliary rod (5) increases sequentially from the direction near the main frame reinforcing rib (2) to the vertex of the triangular area.

4. The display screen back cover strength enhancement component according to claim 1, characterized in that: At the connection point between the end of the S-shaped reinforcing rib (4) and the first inclined reinforcing rib (31) and the second inclined reinforcing rib (32) and the main frame reinforcing rib (2), a node thickening part (6) is formed.

5. The display screen back cover strength enhancement component according to claim 4, characterized in that: The thickened part (6) of the node is a raised structure in the shape of a spherical crown or an ellipsoidal crown.

6. The display screen back cover strength enhancement component according to claim 1, characterized in that: The ends of the two main frame reinforcing ribs (2) are connected by side reinforcing ribs (21), so that the side reinforcing ribs (21) and the two different groups of first inclined reinforcing ribs (31) form a triangular structure.

7. The display screen back cover strength enhancement component according to claim 1, characterized in that: The back cover substrate (1) is also provided with a local reinforcement unit at the position of the opening in the functional area; The local reinforcement unit includes a reinforcement rib (82) surrounding the screw post (81) and the camera opening (83), and the reinforcement rib (82) is connected to the adjacent main frame reinforcement rib (2), inclined reinforcement rib or S-shaped reinforcement rib (4).

8. The display screen back cover strength enhancement component according to claim 1, characterized in that: The cross-section of the main frame reinforcing rib (2) is arched, trapezoidal or T-shaped, and its height is higher than the first inclined reinforcing rib (31), the second inclined reinforcing rib (32) and the S-shaped reinforcing rib (4).

9. The display screen back cover strength enhancement component according to claim 1, characterized in that: The shape of the groove (11) corresponds to the position and depth of the main frame reinforcing rib (2), the first inclined reinforcing rib (31), the second inclined reinforcing rib (32), the S-shaped reinforcing rib (4), the supplementary rib (82), and the auxiliary rod (5).

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