Protective shell

Abstract

The utility model relates to the technical field of electronic equipment accessories, in particular to a protective shell. The protective shell comprises a substrate layer having a first surface and a second surface opposite to each other; the first protective layer is arranged on the first surface, and the second protective layer is arranged on the second surface; the hardness of the first protective layer is larger than that of the base material layer, and the hardness of the second protective layer is larger than that of the base material layer. The first protective layer and the second protective layer of the protective shell are integrally formed on the base material layer, so that the first protective layer and the second protective layer do not fall off while playing a role in protection and decoration, and the base material layer is protected for a long time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic device accessories, in particular to a protective case. BACKGROUND

[0002] With the development of society, mobile phones have become a very popular device, and people will take mobile phones with them almost every moment. As mobile phone screens are becoming larger and more frequently used, mobile phone protective cases have become a necessary accessory for consumers after purchasing a mobile phone.

[0003] In the prior art, in order to ensure that the base material layer achieves better protection and decoration functions, a post-processing process is generally used to treat the surface of the protective case, such as soaking, shower coating, and spraying processes, to achieve better protection and a more beautiful appearance. Although the above scheme can ensure that the base material layer achieves better protection and decoration functions, the coating formed on the surface of the protective case by soaking and spraying processes is easily affected by the environment during use, resulting in a decrease in the adhesion of the coating and causing the coating to fall off. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a protective case, which includes a case main body, the case main body includes a first protective layer, a base material layer, and a second protective layer which are sequentially stacked, the first protective layer, the base material layer, and the second protective layer are integrally formed. The base material layer has a first surface and a second surface opposite to each other; the first protective layer is arranged on the first surface, and the second protective layer is arranged on the second surface; the hardness of the first protective layer is greater than the hardness of the base material layer, and the hardness of the second protective layer is greater than the hardness of the base material layer.

[0005] In some optional examples, the thickness of the first protective layer is less than the thickness of the base material layer, and the thickness of the second protective layer is less than the thickness of the base material layer.

[0006] In some optional examples, the thickness of the base material layer ranges from 1 mm to 3 mm, the thickness of the first protective layer ranges from 0.1 mm to 0.5 mm, and the thickness of the second protective layer ranges from 0.1 mm to 0.5 mm.

[0007] In some optional examples, the case main body further includes a hardening layer, the hardening layer covers one side of the first protective layer away from the base material layer and / or the hardening layer covers one side of the second protective layer away from the base material layer, the hardness of the hardening layer is greater than the hardness of the first protective layer and greater than the hardness of the second protective layer.

[0008] In some optional examples, the hardness of the hardening layer ranges from HB to 9H.

[0009] In some optional examples, the shell body comprises a back plate and a frame, the frame is connected to the periphery of the back plate along the circumference of the back plate, the first protective layer comprises a first back plate protection part, the second protective layer comprises a second back plate protection part, and the first back plate protection part, the back plate and the second back plate protection part are sequentially stacked.

[0010] In some optional examples, the first protective layer further comprises a first frame protection part, the first frame protection part is connected to the periphery of the first back plate protection part; the second protective layer further comprises a second frame protection part, the second frame protection part is connected to the periphery of the second back plate protection part; and the first frame protection part, the frame and the second frame protection part are sequentially stacked.

[0011] In some optional examples, the substrate layer is provided with a side of the first surface defining a containing cavity, a side of the substrate layer away from the containing cavity is provided with a containing groove, the second protective layer is provided with a containing through hole, the containing through hole is in communication with the containing groove; and the protective shell further comprises a support movably connected to the substrate layer, the support is contained in the containing groove and passes through the containing through hole.

[0012] In some optional examples, the support comprises a connecting part and a supporting piece, the connecting part is connected to the substrate layer, and the supporting piece is rotatably connected to the connecting part.

[0013] In some optional examples, the support further comprises a connecting piece, the connecting piece is connected between the connecting part and the substrate layer; the first protective layer is provided with a avoiding hole, and the connecting piece passes through the avoiding hole.

[0014] In some optional examples, the substrate layer is provided with an avoiding opening in communication with the containing cavity, the protective shell further comprises a lens protection frame, the lens protection frame is arranged around the periphery of the avoiding opening; the first protective layer is provided with a first avoiding hole, the second protective layer is provided with a second avoiding hole, the lens protection frame sequentially passes through the first avoiding hole, the avoiding opening and the second avoiding hole, and protrudes relative to the second surface.

[0015] The protective shell provided by the present application is integrally formed by the first protective layer, the substrate layer and the second protective layer, so that the first protective layer and the second protective layer can play the functions of protection and decoration, and can not fall off compared with the protective coating formed by the spraying and soaking processes in the prior art, can achieve long-term protection of the substrate layer, and can adapt to more and more severe use environments. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is an exploded structural schematic view of a protective case according to an embodiment of the present application.

[0018] Figure 2 is a structural schematic view of a substrate layer of the protective case shown in Figure 1

[0019] Figure 3 is an exploded structural schematic view of another embodiment of the protective case shown in Figure 1

[0020] Figure 4 is a structural schematic view of the protective case shown in Figure 1

[0021] Figure 5 is a structural schematic view of another embodiment of the hardening layer shown in Figure 4

[0022] Figure 6 is a structural schematic view of a support for the protective case shown in Figure 1

[0023] Figure 7 is a structural schematic view of the support shown in Figure 6

[0024] Figure 8 is a cross-sectional structural schematic view of the support and the substrate layer of the protective case shown in Figure 6

[0025] Reference signs: 100, protective case; 110, case body; 1101, camera avoiding hole; 10, substrate layer; 101, first surface; 1012, first mounting groove; 103, second surface; 1032, accommodating groove; 1033, second mounting groove; 1034, second supporting groove; 105, accommodating cavity; 107, avoiding hole; 12, back plate; 121, positioning through hole; 14, frame; 30, first protective layer; 32, first back plate protection part; 321, avoiding hole; 323, first positioning hole; 34, first frame protection part; 50, second protective layer; 52, second back plate protection part; 521, accommodating through hole; 523, second positioning hole; 525, second avoiding hole; 54, second frame protection part; 70, hardening layer; 80, lens protection frame; 90, support; 92, hinge structure; 921, first hinge; 923, second hinge; 925, rotating shaft; 94, supporting piece; 95, fixing piece; 96, fastener. DETAILED DESCRIPTION

[0026] ​​​​​​​In the following, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application, so that those skilled in the art can better understand the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0027] As some terms are used in the description and claims to refer to certain components, those skilled in the art should understand that hardware manufacturers can use different names to refer to the same components. The description and claims do not distinguish components by name difference, but by functional difference. As mentioned throughout the description and claims, "including" is an open term, which should be interpreted as "including but not limited to"; "approximately" means that those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0028] Please refer to Figure 1 The present application provides a protective shell 100, which can be used as an accessory product of an electronic product, and is used for sleeving an electronic device to protect the electronic device. For example, the protective shell 100 can be used as a mobile phone protective shell, a tablet computer protective shell, etc. The protective shell 100 can provide anti-falling protection, waterproof and dustproof protection, and anti-scratching protection for the electronic device, and can also be designed with various patterns on the surface of the protective shell 100 to play a role of personalized display. In addition, the protective shell 100 can also assist the user in holding the electronic device.

[0029] The present application takes the protective shell 100 as an example of a mobile phone protective shell for description. In this embodiment, the protective shell 100 can include a shell main body 110, which can include a first protective layer 30, a substrate layer 10, and a second protective layer 50 arranged in sequence. The first protective layer 30, the substrate layer 10, and the second protective layer 50 are integrally formed. The substrate layer 10 has a first surface 101 and a second surface 103 opposite to each other. The first protective layer 30 is arranged on the first surface 101, and the second protective layer 50 is arranged on the second surface 103. The hardness of the first protective layer 30 is greater than that of the substrate layer 10, and the hardness of the second protective layer 50 is greater than that of the substrate layer 10.

[0030] In the protective shell 100, the first protective layer 30, the substrate layer 10 and the second protective layer 50 are integrally formed. Compared with the protective coating formed by the spraying, soaking and other processes in the prior art, the first protective layer 30 and the second protective layer 50 can not only play a protective and decorative function, but also can not fall off, achieve long-term protection of the substrate layer 10, and can adapt to more and more severe use environments. The hardness of the first protective layer 30 and the hardness of the second protective layer 50 are both greater than the hardness of the substrate layer 10. The first protective layer 30 and the second protective layer 50 not only ensure that the protective shell 100 has a relatively high hardness physical protection effect, but also enhance the wear resistance, yellowing resistance and scratch resistance of the protective shell 100 as a whole, prolong the service life of the protective shell 100, and improve the user experience.

[0031] Please also refer to Figure 1 and Figure 2 In the present embodiment, the substrate layer 10 is used as the main body of the protective shell 100 to protect the electronic device. The substrate layer 10 can be provided with a receiving cavity 105 on one side of the first surface 101, and the receiving cavity 105 is used to accommodate the electronic device. The substrate layer 10 can include a back plate 12 and a frame 14 connected to the periphery of the back plate 12 along the circumference of the back plate 12. The back plate 12 is generally in the form of a sheet to facilitate the lightweight of the protective shell 100 and reduce the burden on the user when using the protective shell 100. The frame 14 is connected to the periphery of the back plate 12 and protrudes towards the side of the first surface 101 relative to the back plate 12. The frame 14 is generally in the form of a rectangular frame, and the frame 14 and the back plate 12 together define the receiving cavity 105. The first surface 101 is the inner surface of the receiving cavity 105, and the second surface 103 is the side surface of the back plate 12 away from the receiving cavity 105.

[0032] The electronic device is accommodated in the receiving cavity 105, and the frame 14 surrounds the peripheral wall of the electronic device. The frame 14 and the back plate 12 protect the electronic device so that the electronic device is not easily damaged when falling; the back plate 12 is stacked on the back plate of the electronic device to prevent the back of the electronic device from being scratched when placed on the desktop. The back plate 12 and the frame 14 can be designed according to the size of the actual application electronic device to match the receiving cavity 105 with the electronic device. In some embodiments, considering the appearance of the electronic device such as a mobile phone, the side of the frame 14 can also be provided with a hollow protruding structure to accommodate the volume key, power key and other structures of the mobile phone, and the bottom surface of the frame 14 can also be provided with a through hole for exposing the charging port and the speaker hole of the mobile phone.

[0033] In the embodiment, the back plate 12 and the frame 14 are integrally connected to have better integrity and structural strength; in other embodiments, the back plate 12 and the frame 14 can also be connected by assembly to be formed, for example, independently prepared and formed by a structural adhesive to be connected together, and the split design can make the back plate 12 and the frame 14 have better design freedom. The specific material of the substrate layer 10 is not limited in the specification, for example, the material of the substrate layer 10 can include at least one of the following materials: silica gel, thermoplastic polyurethane (TPU), polycarbonate (PC), polypropylene (PP), etc.

[0034] The first protective layer 30 is arranged on the first surface 101 and is used to protect the first surface 101 of the substrate layer 10; the second protective layer 50 is arranged on the second surface 103 and is used to protect the second surface 103 of the substrate layer 10. In the embodiment, the first protective layer 30 and the second protective layer 50 are both made of polyethylene terephthalate (PET) material. The PET material has good corrosion resistance and has high strength, toughness and rigidity, which effectively improves the physical protection effect of the protective shell 100; the PET material also has good transparency, which can well show the beauty of the appearance design of the electronic device or the protective shell 100, and also will not affect the normal use of the electronic device.

[0035] In the embodiment, the first protective layer 30 and the second protective layer 50 are connected with the substrate layer 10 by the IML / IMD (In-Mold Labeling / In-Mold Decoration) process. As an example, the substrate layer 10 is a TPU substrate layer, and the first protective layer 30 and the second protective layer 50 are both PET sheets. During production, an injection mold is designed and manufactured according to the shape and size of the substrate layer 10, and a position for placing the PET sheet is reserved in the mold, and it is ensured that the PET sheet can be tightly attached to the inner and outer surfaces (the first surface 101 and the second surface 103) of the substrate layer 10 during injection molding. After the mold is prepared, the PET sheet is placed in the predetermined position in the mold, and then the molten TPU material is injected. During the injection molding process, the pressure and temperature in the mold are precisely controlled to ensure that the TPU material and the PET sheet can be smoothly fused to form an integrated protective shell 100. The first protective layer 30 and the second protective layer 50 are integrally connected with the substrate layer 10 by the IML / IMD process, and there is no risk of separation, which can provide long-term protection for the substrate layer 10 and can adapt to more severe use environments.

[0036] The first protective layer 30 and the second protective layer 50 are wrapped on the two side surfaces of the base material layer 10 by IML / IMD forming technology, which not only ensures the relatively high hardness physical protection, appearance decoration, auxiliary holding and other functions, but also enhances the yellowing resistance of the protective shell 100 as a whole, and improves the transparency and haze of the protective shell 100 to achieve the glass-like effect. In some embodiments, the protective shell 100 can only include the second protective layer 50, which covers the second surface 103 (i.e., the outer surface of the base material layer 10 relative to the accommodation cavity 105), and protects the outer surface which is more likely to be worn. In other embodiments, the first protective layer 30 and the second protective layer 50 can also be attached to the surface of the formed base material layer 10 by patching, hot pressing and other processes.

[0037] The specific structure of the first protective layer 30 and the second protective layer 50 is not limited in the present specification. For example, the first protective layer 30 and the second protective layer 50 can only cover the surfaces of the back plate 12 on the two opposite sides. The first protective layer 30 can include a first back plate protection part 32, which is sheet-shaped and covers the side of the back plate 12 close to the accommodation cavity 105. The second protective layer 50 can include a second back plate protection part 52, which is sheet-shaped and covers the side of the back plate 12 away from the accommodation cavity 105. The first back plate protection part 32, the back plate 12 and the second back plate protection part 52 are sequentially stacked.

[0038] In other embodiments, the first protective layer 30 can cover the inner surface of the entire accommodation cavity 105, i.e., cover the inner surface of the frame 14 and the inner surface of the back plate 12 at the same time, and the second protective layer 50 can cover the outer surface of the entire base material layer 10, i.e., cover the outer surface of the frame 14 and the outer surface of the back plate 12 at the same time. Specifically, the first protective layer 30 can further include a first frame protection part 34 connected to the periphery of the first back plate protection part 32 along the circumference of the first back plate protection part 32. The first frame protection part 34 is substantially in the shape of a rectangular frame, which protrudes away from the side of the first back plate protection part 32 facing the back plate 12. The shape of the first protective layer 30 is the same as that of the base material layer 10. The second protective layer 50 can further include a second frame protection part 54 connected to the periphery of the second back plate protection part 52 along the circumference of the second back plate protection part 52. The second frame protection part 54 is substantially in the shape of a rectangular frame, which protrudes toward the side of the second back plate protection part 52 facing the back plate 12. The shape of the second protective layer 50 is the same as that of the base material layer 10.

[0039] The first back plate protection part 32, the back plate 12 and the second back plate protection part 52 are stacked in sequence, the first frame protection part 34, the frame 14 and the second frame protection part 54 are stacked in sequence, the first protection layer 30 covers the inner surface (the first surface 101) of the substrate layer 10, and the second protection layer 50 covers the outer surface (the second surface 103) of the substrate layer 10, so as to achieve more comprehensive protection and further improve the protection effect of the substrate layer 10. In some embodiments, the end surface of the frame 14 away from the back plate 12 can also be covered with a protective substrate, for example, the first frame protection part 34 is bent outward at the end away from the first back plate protection part 32 to cover the end surface of the frame 14.

[0040] In the present embodiment, the thickness of the first protection layer 30 is less than the thickness of the substrate layer 10, and the thickness of the second protection layer 50 is less than the thickness of the substrate layer 10. The first protection layer 30 and the second protection layer 50 have relatively high hardness and relatively small thickness relative to the substrate layer 10, which not only ensures the relatively high hardness of the physical protection effect of the protective shell 100, but also controls the overall thickness of the protective shell 100 within a certain range, reducing the burden on the user during use. Among them, the thickness of the first protection layer 30 includes the thickness of the first back plate protection part 32 and the thickness of the first frame protection part 34, and the thickness of the second protection layer 50 includes the thickness of the second back plate protection part 52 and the thickness of the second frame protection part 54. The thickness of the substrate layer 10 also includes the thickness of the back plate 12 and the thickness of the frame 14. The thickness of the first back plate protection part 32 and the thickness of the second back plate protection part 52 are both less than the thickness of the back plate 12, and the thickness of the first frame protection part 34 and the thickness of the second frame protection part 54 are both less than the thickness of the frame 14.

[0041] As an example, the thickness of the substrate layer 10 can range from 1 mm to 3 mm (inclusive), for example, the thickness of the substrate layer 10 can be 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, etc. The thickness of the first protective layer 30 ranges from 0.1 mm to 0.5 mm (inclusive), for example, the thickness of the first protective layer 30 can be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, etc. The thickness of the second protective layer 50 ranges from 0.1 mm to 0.5 mm (inclusive), for example, the thickness of the second protective layer 50 can be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, etc. In actual use, different thicknesses of the protective shell scheme can be designed according to the user's use environment. The thicker the first protective layer 30 and the second protective layer 50, the better the protection effect, and the electronic device can be better protected in a more harsh and harsh environment. On the contrary, for some users with good use environment, a protective shell scheme with smaller thickness can be selected, which can effectively protect the electronic device, reduce the thickness of the protective shell 100, and reduce the weight of the protective shell 100, making it more portable and easy to carry.

[0042] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "inner" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0043] Please refer to Figures 1 and Figure 4 In the present embodiment, the shell body 110 can further include a hardening layer 70, the hardening layer 70 covers one side of the first protective layer 30 away from the substrate layer 10 and / or the hardening layer 70 covers one side of the second protective layer 50 away from the substrate layer 10, the hardness of the hardening layer 70 is greater than the hardness of the first protective layer 30, and greater than the hardness of the second protective layer 50. The hardening layer 70 further improves the physical protection effect, and the hardening layer 70 cooperates with the first protective layer 30 or / and the second protective layer 50 to make the protective shell 100 have relatively high toughness and relatively high hardness protection function. The present specification does not limit the specific material of the hardening layer 70, for example, the material of the hardening layer 70 can include at least one of the following materials: Polymethyl Methacrylate (PMMA), Polycarbonate (PC). In the present embodiment, the hardening layer 70 is made of PMMA, and the hardness of the hardening layer 70 ranges from HB to 9H (inclusive).

[0044] The hardening layer 70 can be a coating structure, which can be covered on the first protective layer 30 or the second protective layer 50 through a processing technology such as immersion, flow coating, spraying, etc. The hardening layer 70 can be covered only on the side of the first protective layer 30 away from the substrate layer 10, or covered only on the side of the second protective layer 50 away from the substrate layer 10. In the embodiment, the side of the first protective layer 30 away from the substrate layer 10 and the side of the second protective layer 50 away from the substrate layer 10 are both covered with the hardening layer 70, so that the protective shell 100 achieves all-round protection. In some embodiments, the hardening layer 70 can also be a patch structure, and the hardening layer 70 is attached to the surface of the first protective layer 30 or the second protective layer 50.

[0045] The present specification does not limit the specific structure of the hardening layer 70. For example, as shown in FIG. 1, the hardening layer 70 can be covered only on the surface of the first back plate protective part 32 or / and the second back plate protective part 52. Figure 4 Alternatively, as shown in FIG. 2, the hardening layer 70 can be covered on the inner surface of the first back plate protective part 32 and the first frame protective part 34 (i.e., the side surface of the first protective layer 30 away from the back plate 12) or / and the inner surface of the second back plate protective part 52 and the second frame protective part 54 (i.e., the side surface of the second protective layer 50 away from the back plate 12). Figure 5 Alternatively, as shown in FIG. 2, the hardening layer 70 can be covered on the inner surface of the first back plate protective part 32 and the first frame protective part 34 (i.e., the side surface of the first protective layer 30 away from the back plate 12) or / and the inner surface of the second back plate protective part 52 and the second frame protective part 54 (i.e., the side surface of the second protective layer 50 away from the back plate 12).

[0046] Please refer to FIG. 1 and FIG. 2 at the same time. Figure 6 In the embodiment, the protective shell 100 can further include a support 90 movably connected to the substrate layer 10, which is used to support the electronic device in the accommodating cavity 105 and facilitate the user to use. The substrate layer 10 is provided with a receiving groove 1032 on the side of the second surface 103 (i.e., the side away from the accommodating cavity 105), and the second protective layer 50 is provided with a receiving through hole 521 in position correspondence and communication with the receiving groove 1032. The support 90 is received in the receiving groove 1032 and rotatably passes through the receiving through hole 521.

[0047] The support 90 is movably connected to the substrate layer 10, and when the support 90 is moved to a supporting state relative to the substrate layer 10, the support 90 is located outside the receiving groove 1032. At this time, the support 90 can be used to support the electronic device, so that the electronic device maintains a certain angle, facilitating the user to use. When the support 90 is moved to a storage state relative to the substrate layer 10, the support 90 is received in the receiving groove 1032, so that the protective shell 100 is more stable when placed on a plane, and the appearance of the protective shell 100 is not affected when stored, making it more beautiful. The receiving through hole 521 is used for the support 90 to pass through, avoiding affecting the movement of the support 90. Correspondingly, the hardening layer 70 on the second protective layer 50 is also provided with a corresponding accommodation through slot. When the support 90 moves relative to the back plate 12, the support 90 passes through the receiving through hole 521 of the second protective layer 50 and the accommodation through slot on the aforementioned hardening layer 70 in sequence.

[0048] Please refer to Figure 2 、 Figure 7 and Figure 8 , the support 90 can include a hinge structure 92 and a support piece 94, the hinge structure 92 can include a first hinge 921, a rotating shaft 925 and a second hinge 923, the first hinge 921 is rotatably connected with the second hinge 923 through the rotating shaft 925, the first hinge 921 is connected with the support piece 94, and the second hinge 923 is connected to the substrate layer 10. Specifically, the second hinge 923 can be fixedly connected to the back plate 12, and the second hinge 923 is directly connected to the back plate 12, which ensures the connection strength and improves the connection stability of the support 90. The support piece 94 can be in the shape of a sheet, a ring, or an irregular shape. In this embodiment, the support piece 94 is approximately in the shape of a ring, which is not only beautiful but also has good support effect.

[0049] The accommodation groove 1032 is provided on the back plate 12 and is recessed relative to the second surface 103, and the accommodation groove 1032 can be arranged at the middle of the back plate 12 or at other positions, such as near the top end or the bottom end. The shape of the accommodation groove 1032 is consistent with that of the support piece 94, and the accommodation groove 1032 is a ring-shaped groove. As shown in Figure 1 The accommodation through hole 521 is arranged on the second back plate protection part 52 and penetrates the second back plate protection part 52 along the thickness direction of the second back plate protection part 52. The accommodation through hole 521 corresponds in position to the accommodation groove 1032 and is identical in shape. In use, the user can manually pull the support piece 94 out of the accommodation groove 1032, so that the support piece 94 and the bottom end of the substrate layer 10 jointly form a support leg to support the electronic device.

[0050] The first surface 101 of the substrate layer 10 is also provided with a first mounting groove 1012 for accommodating the second hinge 923. The back plate 12 is provided with a clearance through hole 121 penetrating the inner and outer surfaces of the substrate layer 10, and the rotating shaft 925 is accommodated in the clearance through hole 121. The support 90 can further include a fastener 96 and a fixing piece 95, and the fastener 96 is connected between the second hinge 923 and the substrate layer 10. The specific structure of the fastener 96 is not limited in the present specification, for example, the fastener 96 can be an adhesive such as structural glue, or the fastener 96 can be a fixing piece such as a screw or a rivet. In this embodiment, the fastener 96 is a rivet, and the second hinge 923 is riveted to the back plate 12. The second surface 103 is provided with a second mounting groove 1033, and the fixing piece 95 is mounted in the second mounting groove 1033, which is used to be fixedly connected with the second hinge 923 through the fastener 96, and the back plate 12 is clamped between the second hinge 923 and the fixing piece 95.

[0051] In order to facilitate the installation of the second hinge 923, in the present embodiment, the first protective layer 30 is provided with a first avoiding hole 321, and the second hinge 923 is arranged through the first avoiding hole 321. The first avoiding hole 321 is arranged on the first back plate protection part 32 and penetrates the first back plate protection part 32 along the thickness direction of the first back plate protection part 32. The first avoiding hole 321 is in position correspondence with and has the same shape as the first installation slot 1012, and the first installation slot 1012 is exposed through the first avoiding hole 321, so that the second hinge 923 can be installed in the first installation slot 1012. Correspondingly,

[0052] The hardening layer 70 on the first protective layer 30 is also provided with a corresponding avoiding hole to facilitate the installation of the second hinge 923. The avoiding hole of the aforementioned hardening layer 70 is in position correspondence with the first avoiding hole 321 of the first protective layer 30, and has the same shape as the first avoiding hole 321.

[0053] The second protective layer 50 can also be provided with a second avoiding hole 525, which is in position correspondence with the second installation slot 1033, and the second installation slot 1033 is exposed through the second avoiding hole 525, so that the fixing part 95 can be installed in the second installation slot 1033. The fixing part 95 is fixedly connected with the second hinge 923, and the back plate 12 is clamped between the fixing part 95 and the second hinge 923.

[0054] In the present embodiment, the base material layer 10 can also be provided with an avoiding hole 107 which is in communication with the accommodating cavity 105, and the protective shell 100 can further include a lens protection frame 80 which is arranged around the periphery of the avoiding hole 107. The first protective layer 30 is provided with a first avoiding hole 323, and the second protective layer 50 is provided with a second avoiding hole 523. The lens protection frame 80 is arranged through the first avoiding hole 323, the avoiding hole 107 and the second avoiding hole 523 in sequence, and protrudes away from the side of the second protective layer 50 which is away from the base material layer 10. The avoiding hole 107, the first avoiding hole 323 and the second avoiding hole 523 are in position correspondence, and jointly form a camera avoiding hole 1101. The lens protection frame 80 is clamped around the periphery of the camera avoiding hole 1101 and protrudes away from the second protective layer 50.

[0055] Electronic devices, such as mobile phones, typically have a protruding camera on the back. When the electronic device is housed in the receiving cavity 105, the camera extends through the clearance hole 107. A lens protection frame 80 surrounds the camera to protect it and prevent its edges from being bumped. The inner side of the lens protection frame 80 can be rounded so that when the protective case 100 is mounted on the electronic device, the lens protection frame 80 can fit as close as possible to the surface of the camera, preventing small debris from entering the receiving cavity 105. The specific shape of the lens protection frame 80 can be designed according to the shape of the camera of the electronic device in actual use. As an example, if the lens protection frame 80 is rectangular, then the first clearance hole 323, the clearance hole 107, and the second clearance hole 523 are all approximately rectangular through holes.

[0056] The lens protection frame 80 is sequentially inserted through the first back panel protection part 32, the back panel 12, and the second back panel protection part 52. This specification does not limit the specific manner in which the lens protection frame 80 is connected to the first back panel protection part 32, the back panel 12, and the second back panel protection part 52. For example, the lens protection frame 80 can be glued to the first back panel protection part 32, the back panel 12, and the second back panel protection part 52, or connected to the back panel 12 by fasteners. In this embodiment, one end of the lens protection frame 80 is provided with a flange, which is connected to the outer peripheral surface of the lens protection frame 80 and protrudes relative to the outer peripheral surface. The lens protection frame 80 is snapped into the body 12. After being snapped into place, the flange of the lens protection frame 80 abuts against the first back panel protection part 32. Correspondingly, the hardened layer 70 on the first protective layer 30 and the hardened layer 70 on the second protective layer 50 also have through holes for making way for the lens protection frame 80.

[0057] In the protective shell 100 provided in this embodiment, the first protective layer 30 and the second protective layer 50 are respectively disposed on two opposite surfaces of the substrate layer 10. The hardness of the first protective layer 30 and the hardness of the second protective layer 50 are both greater than the hardness of the substrate layer 10. While ensuring that the protective shell 100 has a relatively high hardness physical protection effect, the first protective layer 30 and the second protective layer 50 enhance the overall wear resistance, yellowing resistance, and scratch resistance of the protective shell 100, extend the service life of the protective shell 100, and improve the user experience.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application 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. These 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 embodiments of this application.

Claims

1. A protective shell, characterized in that, The shell body includes a first protective layer, a substrate layer, and a second protective layer stacked sequentially, wherein the first protective layer, the substrate layer, and the second protective layer are integrally formed; the substrate layer has a first surface and a second surface facing away from each other, the first protective layer is disposed on the first surface, and the second protective layer is disposed on the second surface; the hardness of the first protective layer is greater than the hardness of the substrate layer, and the hardness of the second protective layer is greater than the hardness of the substrate layer.

2. The protective shell as described in claim 1, characterized in that, The thickness of the first protective layer is less than the thickness of the substrate layer, and the thickness of the second protective layer is less than the thickness of the substrate layer.

3. The protective shell as described in claim 2, characterized in that, The thickness of the substrate layer ranges from 1mm to 3mm, the thickness of the first protective layer ranges from 0.1mm to 0.5mm, and the thickness of the second protective layer ranges from 0.1mm to 0.5mm.

4. The protective shell as described in claim 1, characterized in that, The shell body further includes a hardening layer, which covers the side of the first protective layer away from the substrate layer and / or covers the side of the second protective layer away from the substrate layer. The hardness of the hardening layer is greater than that of the first protective layer and greater than that of the second protective layer.

5. The protective shell as described in claim 4, characterized in that, The hardness range of the hardened layer is HB-9H.

6. The protective shell as described in claim 1, characterized in that, The substrate layer includes a back plate and a frame. The frame is connected to the periphery of the back plate along the circumferential direction. The first protective layer includes a first back plate protective portion, and the second protective layer includes a second back plate protective portion. The first back plate protective portion, the back plate, and the second back plate protective portion are stacked sequentially.

7. The protective shell as described in claim 6, characterized in that, The first protective layer further includes a first frame protection portion, which is disposed at the periphery of the first back panel protection portion; the second protective layer further includes a second frame protection portion, which is disposed at the periphery of the second back panel protection portion; the first frame protection portion, the frame and the second frame protection portion are stacked sequentially.

8. The protective casing as described in any one of claims 1 to 7, characterized in that, The substrate layer has a receiving cavity on one side of the first surface, and a receiving groove on one side of the substrate layer on the second surface. The second protective layer has a receiving through hole, and the receiving through hole corresponds to the receiving groove. The protective shell also includes a bracket movably connected to the shell body. The bracket can rotate through the receiving through hole and be housed in the receiving groove.

9. The protective shell as described in claim 8, characterized in that, The bracket includes a support member and a hinge structure. The hinge structure includes a first hinge, a pivot, and a second hinge. The first hinge is rotatably connected to the second hinge via the pivot, and the first hinge is connected to the support member. A first mounting groove is provided on the first surface of the substrate layer, and a first clearance hole is provided on the first protective layer. The first clearance hole corresponds to the position of the first mounting groove, and the first mounting groove is exposed through the first clearance hole so that the second hinge can be installed in the first mounting groove. The bracket also includes a fixing member. A second mounting groove is provided on the second surface of the substrate layer. A second clearance hole is provided on the second protective layer. The second clearance hole corresponds to the position of the second mounting groove. The second mounting groove is exposed through the second clearance hole so that the fixing member can be installed in the second mounting groove. The fixing member is fixedly connected to the second hinge, and the substrate layer is sandwiched between the fixing member and the second hinge.

10. The protective shell as described in claim 8, characterized in that, The substrate layer is provided with a clearance hole, the first protective layer is provided with a first clearance hole, and the second protective layer is provided with a second clearance hole. The clearance hole, the first clearance hole, and the second clearance hole are positioned correspondingly and together constitute the camera clearance hole. The protective shell also includes a lens protection frame, which is engaged with the periphery of the camera clearance hole and protrudes relative to the second protective layer.

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