A blankable structure for improving the flatness of a television back plate, television

Abstract

The utility model discloses a kind of for improving the blanking structure of television backboard flatness, television, the blanking structure includes flat plate main body (1) and the multiple protruding structures (2) of being set on the flat plate main body (1), the outer periphery of the flat plate main body (1) is integrally formed with the protruding annular step (3), the annular step (3) forms reverse tension to offset material tensile stress when the protruding structure (2) is pressed into shape;The annular step (3) is blankable removal part.The utility model can significantly improve finished product flatness.

Description

Technical Field

[0001] This utility model relates to the field of television back panel technology, and in particular to a punchable structure for improving the flatness of a television back panel and a television. Background Technology

[0002] In existing technologies, structural reinforcement of flat panel back panels (such as TV hardware back panels) often employs optimized rib layout to improve flatness and deformation resistance. For example, prior art CN202223485281.3 discloses an improved cross-rib structure, which forms a cross structure by setting first, second, and third ribs to intersect, optimizing the rib angle (64°-68°) and side slope angle (33°-37°) to reduce stamping resistance, avoid cracking at the intersection point, and improve overall flatness.

[0003] However, the aforementioned existing technologies still have limitations: in flat back plates with multiple reinforcing ribs and protrusions (such as...) Figure 1 During the molding process of the structure, simply optimizing the rib angle cannot completely offset the local material tensile stress generated during the molding of the bulge and reinforcing ribs. This can easily lead to large-scale distortion and scratches on the product's surface. In particular, stress concentration is a prominent issue in complex-shaped bulge areas, which seriously affects the stability of product quality.

[0004] Therefore, there is an urgent need for a technical solution that can fundamentally balance material stress, effectively prevent scratches, and improve flatness. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a punchable structure for improving the flatness of a TV back panel and a TV, which can significantly improve the flatness of the finished TV back panel.

[0006] To solve the above-mentioned technical problems, the first aspect of this utility model discloses a punchable structure for improving flatness, including a flat plate body (1) and a plurality of protrusion structures (2) disposed on the flat plate body (1); the outer circumference of the flat plate body (1) is integrally formed with a protruding annular step (3), and the annular step (3) generates a reverse tensile force when the protrusion structure (2) is pressed and formed to offset the tensile stress of the material; the annular step (3) is a punchable and removable part.

[0007] As an optional implementation, the junction (6) between the edge (5) of the flat plate body (1) and the annular step (3) is connected by an arc transition or a slope transition.

[0008] As another alternative implementation, the annular step (3) includes a slope structure (7) and a plane (31);

[0009] The first end of the slope structure (7) is connected to the junction (6), and the second end of the slope structure (7) is connected to the first end of the plane (31); a protrusion (32) is provided on the second end of the plane (31), and the protrusion (32) is integrally formed with the plane (31).

[0010] As another alternative implementation, the height of the protrusion (32) is 1-5 mm.

[0011] As another alternative implementation, the protruding structure (2) is a bulge (21) or a reinforcing rib (22).

[0012] As another optional implementation, the flat plate body (1) is a thin metal plate with a thickness of 0.5mm-2.0mm.

[0013] The second aspect of this utility model discloses a back plate structure, which includes the punchable structure described in the first aspect of this utility model.

[0014] The third aspect of this utility model discloses a display device, which includes the back panel structure described in the second aspect of this utility model.

[0015] Compared with the prior art, the embodiments of this utility model have the following beneficial effects:

[0016] This utility model embodiment uses an annular step (3) integrally formed on the outer circumference. When the inner protruding structure (2) is stamped, the deformation of the annular step (3) can provide an effective reverse tension, actively offsetting the internal stress generated in the central area of ​​the sheet metal due to stretching. This prevents defects such as distortion, dents or scratches on the large surface of the product from the root, and significantly improves the flatness of the finished product. At the same time, the annular step (3) is a part that can be punched out. After completing the mission of stress balance, it can be removed by conventional punching process without affecting the final appearance and assembly of the product, thus achieving a unity of functionality and economy. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a conventional flat panel body structure disclosed in an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of a punchable structure for improving flatness disclosed in an embodiment of the present utility model;

[0020] Figure 3 This is a front view schematic diagram of a punchable structure for improving flatness disclosed in an embodiment of this utility model;

[0021] Figure 4 This is a disclosure of the embodiments of this utility model. Figure 3 A magnified view of the area circled in the middle. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1

[0024] See Figures 2-4 This utility model discloses a punchable structure for improving the flatness of a TV back panel, including a flat body (1) and a plurality of protrusion structures (2) disposed on the flat body (1). The outer circumference of the flat body (1) is integrally formed with a protruding annular step (3). When the protrusion structure (2) is pressed and formed, the annular step (3) generates a reverse tensile force to offset the tensile stress of the material. The annular step (3) is a punchable and removable part.

[0025] This utility model embodiment uses an annular step (3) integrally formed on the outer circumference. When the inner protruding structure (2) is stamped, the deformation of the annular step (3) can provide an effective reverse tension, actively offsetting the internal stress generated in the central area of ​​the sheet metal due to stretching. This prevents defects such as distortion, dents or scratches on the large surface of the product from the root, and significantly improves the flatness of the finished product. At the same time, the annular step (3) is a part that can be punched out. After completing the mission of stress balance, it can be removed by conventional punching process without affecting the final appearance and assembly of the product, thus achieving a unity of functionality and economy.

[0026] In an optional embodiment, the junction (6) between the edge (5) of the flat plate body (1) and the annular step (3) is connected by an arc transition or a slope transition.

[0027] In this embodiment, this smooth transition structure can greatly optimize the smoothness of the metal material during the stamping process, effectively avoid cracks or micro-tears at stress concentration corners, improve the stability and reliability of the forming process, and further ensure the yield of the final product.

[0028] In yet another alternative embodiment, the annular step (3) includes a slope structure (7) and a plane (31);

[0029] The first end of the slope structure (7) is connected to the junction (6), and the second end of the slope structure (7) is connected to the first end of the plane (31); a protrusion (32) is provided on the second end of the plane (31), and the protrusion (32) is integrally formed with the plane (31).

[0030] In this embodiment, this composite structure design provides better stiffness and controllable deformation. The sloping structure (7) facilitates material flow and stress dispersion, while the upper plane (31) and protrusion (32) increase the volume and strength of the step itself, enabling it to provide more sufficient and stable reverse tension and support during the stamping process, thereby enhancing the improvement effect on the flatness of the product.

[0031] In another alternative embodiment, the height of the protrusion (32) is 1-5 mm. This height range ensures that the annular step (3) has sufficient structural height to generate effective reverse tensile deformation. If the height is too low, the reverse tensile force will be insufficient, and the effect of improving flatness will be limited; if the height is too high, it may lead to material waste, increased punching load, and unnecessary gains. This range is the optimal balance between technical effectiveness and production cost.

[0032] In another alternative embodiment, the protruding structure (2) is a bulge (21) or a reinforcing rib (22). Whether for a dispersed array of bulges or a continuous reinforcing rib structure, the annular step mechanism can effectively improve its forming flatness.

[0033] In another optional embodiment, the flat plate body (1) is a thin metal sheet with a thickness of 0.5mm-2.0mm. This invention is particularly suitable for the field of thin metal sheets that are prone to stamping deformation (such as back panels of home appliances).

[0034] Example 2

[0035] See Figures 2-4 This embodiment provides a punchable structure for improving the flatness of TV hardware back panels, and the specific configuration of each component is as follows:

[0036] Flat plate body (1): It is made of cold-rolled steel plate with a thickness of 1.0mm and is rectangular in shape, serving as the basic load-bearing component of the back plate.

[0037] The raised structure (2) includes multiple raised bumps (21) and reinforcing ribs (22). Among them, the raised bumps (21) are hemispherical and distributed in the middle area of ​​the flat panel body (1) for subsequent cooperation with other TV components; the reinforcing ribs (22) are cross-shaped and set between the raised bumps (21) to enhance the overall rigidity of the flat panel body (1).

[0038] Circular step (3): integrally formed on the outer circumference of the plate body (1), forming a closed ring around the edge of the plate body (1), and is a "cuttable and removable part".

[0039] Junction (6): The edge (5) of the flat plate body (1) and the annular step (3) are connected by a circular arc with a radius of 2mm to avoid stress concentration at the junction.

[0040] Slope structure (7) and plane (31): The slope structure (7) is an inclined plane with an angle of 30° with the plane of the main plate (1). Its first end is smoothly connected to the arc of the junction (6), and its second end is perpendicularly connected to the first end of the plane (31). The plane (31) is a horizontal rectangular plane with a length of 10mm. A protrusion (32) is integrally formed on the second end of the plane (31). The protrusion (32) is a cuboid structure with a height of 3mm and a width consistent with the plane (31), which enhances the local strength of the ring step (3).

[0041] In addition, the molding and application process:

[0042] Blank preparation: Select a cold-rolled steel plate with matching size as the blank for the main body of the flat plate (1).

[0043] Annular step forming: Annular steps (3) are integrally stamped on the outer circumference of the blank by a stamping die, so that the slope structure (7), plane (31) and protrusion (32) are formed in one step.

[0044] Forming of raised structures: The central area of ​​the flat plate body (1) is pressed using a stamping device to form a raised bump (21) and a reinforcing rib (22). During this process, the annular step (3) is integrally connected with the blank, which forms a reverse tensile force on the material of the flat plate body (1), offsetting the tensile stress during the forming of the raised bump (21) and the reinforcing rib (22), preventing the flat plate body (1) from deforming and producing scratches, and ensuring flatness.

[0045] Punching to remove the annular step: Using a punching die, punch along the preset boundary (near the junction (6)) between the annular step (3) and the flat body (1) to remove the punchable part of the annular step (3) (while preserving the integrity of the edge of the flat body (1)) and obtain the back plate semi-finished product.

[0046] Display device integration: The above-mentioned back panel semi-finished product is used as the back panel structure and integrated into the TV device to complete the TV assembly.

[0047] Example 3

[0048] This utility model discloses a backplate structure, which includes the punchable structure described in Embodiment 1 or Embodiment 2.

[0049] Example 4

[0050] This utility model discloses a television, which includes the back panel structure described in embodiment three.

[0051] The contents disclosed in this utility model embodiment are merely preferred embodiments of this utility model and are only used to illustrate the technical solutions of this utility model, not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A punchable structure for improving the flatness of a television back panel, comprising a flat panel body (1) and a plurality of protruding structures (2) disposed on the flat panel body (1), characterized in that: The outer circumference of the flat plate body (1) is integrally formed with a raised annular step (3). The annular step (3) generates a reverse tensile force when the raised structure (2) is pressed to offset the tensile stress of the material. The annular step (3) is a punchable and removable part.

2. The punchable structure according to claim 1, characterized in that: The junction (6) between the edge (5) of the flat plate body (1) and the annular step (3) is connected by an arc transition or a slope transition.

3. The punchable structure according to claim 2, characterized in that: The annular step (3) includes a slope structure (7) and a plane (31); The first end of the slope structure (7) is connected to the junction (6), and the second end of the slope structure (7) is connected to the first end of the plane (31); a protrusion (32) is provided on the second end of the plane (31), and the protrusion (32) is integrally formed with the plane (31).

4. The punchable structure according to claim 3, characterized in that: The height of the protrusion (32) is 1-5mm.

5. The punchable structure according to claim 1, characterized in that: The protruding structure (2) is a protrusion (21) or a reinforcing rib (22).

6. The punchable structure according to claim 1, characterized in that: The main body of the plate (1) is a thin metal plate with a thickness of 0.5mm-2.0mm.

7. A television, comprising a television back panel, characterized in that: The television back panel comprises the punchable structure according to any one of claims 1-6.

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