3D curved surface backboard structure

Abstract

The utility model provides a three-dimensional (3D) curved-surface back plate structure which enables four edges and four corners of a back plate to have reliable bending performance and improves attractiveness of a 3D curved-surface screen. The back plate is a stainless steel plate body; the central area of the back plate is a non-curved-surface area, the four edges and the four corners of the back plate are curved-surface areas, the four corners of the back plate are of arc structures, the four edges of the back plate are each provided with a plurality of rows of strip-shaped hole grooves, and the four arc structures of the back plate are each provided with a plurality of row hole structures and interval row holes which are sequentially arranged in the radian direction. A plurality of strip-shaped holes which are arranged at intervals are sequentially formed in each row of strip-shaped hole grooves in the side length direction, and the interval distances of the adjacent rows of strip-shaped hole grooves are the same; each group of row hole structures comprises a radial inner end starting long strip hole, a radial middle long strip hole and a radial tail end notch groove, the radial tail end notch groove is a notch structure corresponding to the edge position, interval row holes are further formed between the adjacent row hole structures, and each group of interval row holes comprises a radial inner end hole strip and a radial outer end hole strip.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D curved surface screen structure technical field, concretely is a kind of 3D curved surface backboard structure. BACKGROUND

[0002] The curved surface screen of existing mobile phone or tablet computer is generally composed of surface layer, PSA layer, metal layer and PF layer, wherein the metal layer is copper foil layer, and pure copper material is soft and has good ductility and heat dissipation property, but in actual use, pure copper material is expensive, and has poor high-temperature performance and poor corrosion resistance; when actually processing curved surface, the four edges of copper foil have bending performance, but the four corners of copper foil do not have bending performance, so that after being bent into 3D curved surface, corner wrinkles are caused, and the 3D curved surface of four corners is relatively poor in appearance; therefore, it is urgent to develop a reliable 3D curved surface backboard structure to improve the appearance of the final 3D curved surface screen. SUMMARY

[0003] In view of the above problems, the utility model provides a kind of 3D curved surface backboard structure, it makes the reliable bending of the four edges and four corners of backboard, improves the appearance of 3D curved surface screen.

[0004] A kind of 3D curved surface backboard structure, characterized by: backplate is stainless steel plate material body;

[0005] The center area of the backplate is a non-curved surface area, the four edges and four corners of the backplate are curved surface areas, the four corners of the backplate are circular arc structures, the four edges of the backplate are respectively provided with a plurality of rows of strip hole grooves, and the positions of the four circular arc structures of the backplate are respectively provided with a plurality of rows of hole structures and interval holes arranged in sequence along the radian direction.

[0006] Each row of strip hole grooves is sequentially provided with a plurality of interval arranged strip holes along the direction of side length, and the interval distances of adjacent rows of strip hole grooves are the same.

[0007] Each group of hole structures includes a radial inner end starting long hole, a radial middle long hole and a radial end notch groove, the radial end notch groove is a notch structure corresponding to the edge position, and each group of interval holes includes a radial inner end hole and a radial outer end hole, and each group of interval holes is arranged and provided radially from inside to outside corresponding to an arc position.

[0008] Further characterized in that:

[0009] The strip holes of adjacent rows of strip hole grooves of the backplate form staggered arrangement structure corresponding to length area, which ensures that at least one notch is provided at the position of length area corresponding to each two adjacent rows of strip hole grooves, and sufficient curved surface forming space is ensured.

[0010] The starting edge position of one of the two groups of strip hole grooves of the short edge of the back plate is provided with a dot groove for prompting that the edge is a short edge;

[0011] The top edge of the back plate is provided with a profiled notch at the position corresponding to the lens, ensuring reasonable and reliable arrangement of the lens;

[0012] The hole groove arrangement density of the inner side of the radial position of the four arc structures of the back plate is greater than the hole groove arrangement density of the outer side of the radial position, ensuring reliable formation of the curved surface;

[0013] The hole grooves of the adjacent row hole structures and the interval holes are formed in a staggered arrangement structure corresponding to the radial position area, which ensures that each group of adjacent row hole structures and interval hole hole grooves is provided with at least one notch corresponding to the radial area position, ensuring sufficient curved surface forming space;

[0014] The hole grooves of the four edges and the arc structures of the four corners of the back plate are obtained by etching;

[0015] The thickness of the back plate is 50 μm.

[0016] After the structure of the utility model is adopted, the front processing of the back plate is performed, so that the back plate is provided with a plurality of strip hole grooves on the four edges, and the four arc structures of the back plate are provided with a plurality of row hole structures and interval holes arranged along the arc direction in sequence, so that the four edges and the four corners of the back plate can reliably form a 3D curved surface with a set shape, and the four edges and the four corners of the back plate have reliable bending property, and the appearance of the 3D curved surface screen is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view structure schematic diagram of the utility model;

[0018] Figure 2 It is a local enlarged schematic diagram of A of the utility model;

[0019] Figure 3 It is a local enlarged schematic diagram of B of the utility model;

[0020] Figure 4 It is a local enlarged schematic diagram of C of the utility model;

[0021] The names corresponding to the serial numbers in the figure are as follows:

[0022] Back plate 10, non-curved area 101, long side 102, short side 103, corner position 104, profiling gap 105, row strip hole groove 20, strip hole 21, dot groove 22, row hole structure 30, radial inner end starting long strip hole 31, radial middle long strip hole 32, radial end gap groove 33, radial end gap groove 33, interval row hole 40, radial inner end hole strip 41, radial outer end hole strip 42. DETAILED DESCRIPTION

[0023] A 3D curved back plate structure, see Figures 1-4 : Back plate 10 is a stainless steel plate body;

[0024] The center area of the back plate 10 is a non-curved area 101, the two long sides 102 and the two short sides 103 and the four corner positions 104 of the back plate 10 are curved areas, the four corner positions 104 of the back plate 10 are circular arc structures, and the four edges (two long sides 102 and two short sides 103) of the back plate 10 are respectively provided with a plurality of row strip hole grooves 20, and the positions of the four circular arc structures of the back plate 10 are respectively provided with a plurality of row hole structures 30 and interval row holes 40 arranged in sequence along the arc direction;

[0025] Each row strip hole groove 20 is sequentially provided with a plurality of interval arranged strip holes 21 along the direction of the edge length, and the interval distance of adjacent row strip hole grooves 20 is the same;

[0026] Each group of row hole structures 30 includes a radial inner end starting long strip hole 31, a radial middle long strip hole 32, and a radial end gap groove 33, the radial end gap groove 33 is a gap structure corresponding to the edge position, and the interval row holes 40 are further included between adjacent row hole structures 30, each group of interval row holes 40 includes a radial inner end hole strip 41 and a radial outer end hole strip 42, and each group of interval row holes 40 corresponds to an arc position and is arranged and provided radially from inside to outside.

[0027] In specific embodiments,

[0028] The strip holes of the adjacent row strip hole grooves 20 of the back plate 10 correspond to the length area to form a staggered arrangement structure, which ensures that at least one gap is provided at the length area position corresponding to every two adjacent row strip hole grooves 20, ensuring sufficient curved forming space;

[0029] The starting edge position of one of the two groups of row strip hole grooves 20 of the short side 103 of the back plate 10 is provided with a dot groove 22, which is used to prompt that this edge is a short side 102.

[0030] In specific embodiments, the top edge of the back plate 10 is provided with a profiling gap 105 at a position corresponding to the lens, ensuring reasonable and reliable arrangement of the lens.

[0031] In specific implementation, the hole groove arrangement density of the inner side of the radial position of the four arc structures of the back plate 10 is greater than the hole groove arrangement density of the outer side of the radial position, which ensures reliable forming of the curved surface.

[0032] In specific implementation, the hole grooves of the adjacent row hole structure 30 and the interval row hole 40 are arranged in staggered arrangement corresponding to the radial position area, which ensures that each group of adjacent row hole structure 30 and interval row hole 40 hole grooves corresponding to the radial area position are provided with at least one gap, which ensures sufficient curved surface forming space.

[0033] In specific embodiments, the thickness of the back plate 10 is 50μm, and the hole grooves of the four edges and the four corners of the arc structure of the back plate 10 are obtained by etching, and then 3D curved surface bending forming is performed by mold.

[0034] It is formed by etching the back plate, so that the back plate is provided with a plurality of row hole grooves on the four edges, and the four arc structures of the back plate are provided with a plurality of row hole structures and interval row holes arranged along the arc direction in sequence, so that the four edges and the four corners of the back plate can reliably form a 3D curved surface with a set shape, which makes the four edges and the four corners of the back plate have reliable bending property, and improves the beauty of the 3D curved surface screen.

[0035] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0036] In addition, it should be understood that although the present application is described in the form of embodiments, each embodiment does not contain only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A 3D curved backplane structure, characterized by: The back plate is made of stainless steel plate body; The central area of the back plate is a non-curved area, the four edges and the four corner positions of the back plate are curved areas, the four corner positions of the back plate are circular arc structures, the four edges of the back plate are respectively provided with a plurality of rows of strip hole grooves, and the four circular arc structures of the back plate are respectively provided with a plurality of rows of hole structures and interval holes arranged in sequence along the arc direction. Each row of strip hole grooves is sequentially provided with a plurality of interval arranged strip holes along the direction of the side length. Each group of row hole structures includes a radial inner end starting long hole, a radial middle long hole, and a radial end notch groove, the radial end notch groove is a notch structure corresponding to the edge position, and the adjacent row hole structures further include interval holes, each group of interval holes includes a radial inner end hole and a radial outer end hole, and each group of interval holes is arranged and provided from inside to outside corresponding to an arc position.

2. The 3D curved backplane structure of claim 1, wherein: The strip holes of the adjacent row strip hole grooves of the back plate correspond to the length area to form a staggered arrangement structure, which ensures that each two adjacent row strip hole grooves correspond to the length area position and are provided with at least one notch.

3. The 3D curved backplane structure of claim 2, wherein: The starting edge position of one group of row strip hole grooves of the adjacent two groups of row strip hole grooves of the short edge of the back plate is provided with a circular point groove, which is used to prompt that the edge is a short edge.

4. The 3D curved backplane structure of claim 1, wherein: The top edge of the back plate is provided with a profiled notch corresponding to the position of the lens.

5. The 3D curved backplane structure of claim 1, wherein: The hole groove arrangement density of the inner side of the radial position of the four circular arc structures of the back plate is greater than the hole groove arrangement density of the outer side of the radial position.

6. The 3D curved backplane structure of claim 5, wherein: The hole grooves of the adjacent row hole structures and the interval holes correspond to the radial position area to form a staggered arrangement structure, which ensures that each group of adjacent row hole structures and interval holes are provided with at least one notch corresponding to the radial area position.

7. The 3D curved backplane structure of claim 1, wherein: The hole grooves of the four edges and the circular arc structures of the four corners of the back plate are obtained by etching.

8. The 3D curved backplane structure of claim 1, wherein: The thickness of the back plate is 50μm.

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