Support bracket protective shell and manufacturing method of back plate of support bracket protective shell

Abstract

The application discloses a support protective shell and a manufacturing method of a back plate of the support protective shell. The back plate is stacked by a base layer and a surface layer, and is connected through a plate material compounding process. When a support storage groove is processed by a CNC, only the surface layer part is cut off, and the base layer is protected by an isolation layer and cannot be processed. After the isolation layer is removed, a specified area of the base layer is exposed. Since a cutter does not contact the specified area of the base layer, the surface of the specified area exposed by the base layer is smooth, and there is no tool mark. Therefore, in the application, the bottom of the support storage groove does not need to be additionally attached with a Mylar sheet, the product neatness can be ensured, and user experience is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic device accessory, in particular to a support protective case and a manufacturing method of a back plate of the support protective case. BACKGROUND

[0002] The protective case is used as an accessory of the electronic device, which can protect the electronic device in all directions. With the continuous development of electronic devices, the functions brought by electronic devices are becoming more and more diversified. In the application scenarios such as watching videos, office writing, and games, compared with using the electronic device flat on the desktop, users will prefer to use the electronic device supported by the support at a suitable angle. Therefore, a support is usually provided on the protective case to solve the above problems.

[0003] The setting of the support on the protective case as a portable accessory generally cannot affect the user's experience. Taking a mobile phone protective case as an example, if the support is directly protruded on the protective case, the user will feel uncomfortable when holding the mobile phone, the mobile phone cannot be placed flat on the desktop, and the support is easy to scratch other objects. Therefore, a recess is usually provided on the surface of the protective case to accommodate the support. In the existing process, the recess is machined by CNC (numerical control machine tool). Since the recess is milled on the surface of the protective case (usually made of PC material) by a tool, the groove bottom of the recess will have a tool mark. In order to be beautiful and prevent the support from being scratched due to friction with the tool mark, a layer of Mylar sheet is needed to be pasted on the groove bottom of the recess to cover the tool mark. However, the added Mylar sheet makes the product look very conspicuous, and the pasted Mylar sheet is also easy to fall off after a long time of use, affecting the user experience. SUMMARY

[0004] The present application discloses a manufacturing method of a back plate of a support protective case, characterized in that it comprises:

[0005] Taking a layer of plate material as a base layer, an isolation layer is arranged on a specified area of one surface of the base layer;

[0006] Taking another layer of plate material as a surface layer, and covering the side of the base layer provided with the isolation layer, the base layer and the surface layer are compounded;

[0007] A support accommodation groove is machined on the surface layer by CNC, and the isolation layer is exposed on the groove bottom of the support accommodation groove;

[0008] The isolation layer is removed, and the specified area is exposed through the support accommodation groove.

[0009] The present application also discloses a support protective case, characterized in that it comprises:

[0010] The backboard comprises a base layer and a surface layer, one surface of the base layer has a designated area, the surface layer is connected to the surface of the base layer with the designated area, the surface layer is provided with a support receiving groove corresponding to the position of the designated area, the designated area is exposed at the groove bottom of the support receiving groove, and the surface of the designated area is smooth.

[0011] The support is rotationally connected with the backboard, and the support can be selectively received in the support receiving groove or separated from the support receiving groove.

[0012] Compared with the prior art, the present application has at least the following beneficial effects:

[0013] The support protective shell and the manufacturing method of the backboard of the support protective shell are disclosed, the backboard is stacked by a base layer and a surface layer, and is connected through a plate material compounding process, when the support receiving groove is machined by CNC, only the surface layer part is cut off, and the base layer is protected by a separation layer and cannot be machined, and after the separation layer is removed, the designated area of the base layer is exposed, the surface of the designated area of the base layer is smooth because the cutter does not contact the surface of the designated area of the base layer, and there is no tool path line, therefore, in the present application, the groove bottom of the support receiving groove does not need to be additionally pasted with a Mylar sheet, the product neatness can be ensured, the risk that the Mylar sheet is peeled off is solved, and user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the present application, the drawings needed to be used in the present application will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0015] Figure 1 is a flowchart of the manufacturing method of the backboard of the support protective shell provided by the present application;

[0016] Figure 2 is the manufacturing method of the backboard of the support protective shell provided by another embodiment of the present application;

[0017] Figure 3 is the manufacturing method of the backboard of the support protective shell provided by another embodiment of the present application;

[0018] Figure 4 is the manufacturing method of the backboard of the support protective shell provided by another embodiment of the present application;

[0019] Figure 5 is a schematic view in which a release film is covered on the surface of the base layer;

[0020] Figure 6 is a schematic view of cutting the release film;

[0021] Figure 7 is a schematic view of tearing off the second release film, leaving the first release film;

[0022] Figure 8 is a schematic view of laminating the base layer and the surface layer, processing the bracket receiving groove, and removing the first release film;

[0023] Figure 9 is a schematic view of covering the surface layer with the appearance layer;

[0024] Figure 10 is a schematic view of cutting the appearance layer;

[0025] Figure 11 is a schematic view of laminating the base layer and the surface layer, processing the bracket receiving groove, and the structure of the back plate;

[0026] Figure 12 is a schematic view of the structure of the back plate after removing the first appearance layer;

[0027] Figure 13 is a schematic view of the structure of a bracket protective shell provided by the present application;

[0028] Figure 14 is a schematic view of the structure of another bracket protective shell provided by the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0030] In the present application, the terms "upper", "inner", "outer", "middle", and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0031] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. Those of ordinary skill in the art can understand the specific meaning of these terms in the present application according to the specific circumstances.

[0032] In addition, the terms "provided with", "connected" should be broadly understood. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0033] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific type and structure may be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0034] The protective shell is used as an accessory of the electronic device, and can protect the electronic device in all directions. With the continuous development of electronic devices, the functions brought by electronic devices are becoming more and more diversified. In the application scenarios such as watching videos, office writing, and games, compared with using the electronic device flat on the desktop, users will prefer to support the electronic device at a suitable angle through a support. Therefore, a support is usually provided on the protective shell to solve the above problems.

[0035] The protective shell is used as an accessory of the electronic device, and can protect the electronic device in all directions. With the continuous development of electronic devices, the functions brought by electronic devices are becoming more and more diversified. In the application scenarios such as watching videos, office writing, and games, compared with using the electronic device flat on the desktop, users will prefer to support the electronic device at a suitable angle through a support. Therefore, a support is usually provided on the protective shell to solve the above problems.

[0035] The protective shell is used as an accessory of the electronic device, and can protect the electronic device in all directions. With the continuous development of electronic devices, the functions brought by electronic devices are becoming more and more diversified. In the application scenarios such as watching videos, office writing, and games, compared with using the electronic device flat on the desktop, users will prefer to support the electronic device at a suitable angle through a support. Therefore, a support is usually provided on the protective shell to solve the above problems.

[0035] The protective shell is used as an accessory of the electronic device, and can protect the electronic device in all directions. With the continuous development of electronic devices, the functions brought by electronic devices are becoming more and more diversified. In the application scenarios such as watching videos, office writing, and games, compared with using the electronic device flat on the desktop, users will prefer to support the electronic device at a suitable angle through a support. Therefore, a support is usually provided on the protective shell to solve the above problems.

[0036] To solve the above technical problems, the application provides a support protective shell and a manufacturing method of a back plate of the support protective shell. The back plate is stacked by a base layer and a surface layer, and is connected through a plate composite process. When a support receiving groove is machined by a CNC, only the surface layer is cut off, and the base layer is protected by an isolation layer and cannot be machined. After the isolation layer is removed, a specified area of the base layer is exposed. Since the cutter does not contact the surface of the specified area of the base layer, the surface of the specified area exposed by the base layer is smooth, and there is no tool path. Therefore, in the application, the groove bottom of the support receiving groove does not need to be additionally pasted with a Mylar sheet, the product neatness can be ensured, the risk of the Mylar sheet falling off is solved, and the user experience is improved.

[0037] The technical solutions of the application will be further described below with reference to the embodiments and the drawings.

[0038] Referring to Figure 1 The application provides a manufacturing method of a back plate of a support protective shell, which includes the following steps:

[0039] S10: Take a layer of plate material as a base layer, and set an isolation layer on a specified area of one surface of the base layer;

[0040] S20: Take another layer of plate material as a surface layer, and cover the base layer with the isolation layer on one side. The base layer and the surface layer are compounded;

[0041] S30: A support receiving groove is machined on the surface layer by a CNC, and the isolation layer is exposed at the groove bottom of the support receiving groove;

[0042] S40: The isolation layer is removed, and the specified area is exposed through the support receiving groove.

[0043] The region of CNC machining is the region corresponding to the surface layer and the isolation layer, which is the region where the bracket receiving groove 11 is located. In this embodiment, the feed amount of the CNC machining tool is β = 1.8 mm / s, that is, the tool moves and cuts 1.8 mm per second. At the same time, when machining, the depth of the tool cutting the surface layer is equal to the thickness of the surface layer, that is, the CNC machining is only for the surface layer, and the tool of the CNC machining will not touch the isolation layer and the base layer. Even if there is a slight machining error, the isolation layer will also protect the base layer from being machined, so there will be no tool marks on the surface of the specified region of the base layer. When machining the surface layer, a tool with a diameter of 2.0 mm and a length of 4.0 mm is first used for machining, and the tool surface is hardened (such as carbonization). When the tool has been machined for a certain period of time and is very close to the isolation layer, for example, the thickness of the surface layer is 1.5 mm, the tool is machined for 1.4 mm, and the distance between the tool and the isolation layer is only 0.1 mm. At this time, the tool needs to be replaced, and a more delicate tool is used for the final machining. For example, the replaced tool has a diameter of 1.45 mm and a length of 2.0 mm. The more delicate the tool, the easier it is to control the machining accuracy and ensure that the tool will not damage the base layer. After machining is completed, the isolation layer will be exposed through the bracket receiving groove 11, and then the isolation layer is removed to expose the specified region through the bracket receiving groove 11, thereby obtaining the back plate of the bracket protection shell. The surface of the specified region of the base layer is the bottom of the bracket receiving groove 11, so the surface of the bottom of the bracket receiving groove 11 is smooth and will not have marks. Therefore, there is no need to paste an additional Mylar sheet to shield, which ensures the neatness of the product and solves the risk of the Mylar sheet falling off, thereby improving the user experience.

[0044] The CNC machining is completed by a numerical control machine tool. The numerical control machine tool is an automatic machine tool equipped with a program control system. The control system can logically process programs with control codes or other symbolic instructions and translate them into code numbers for input to the numerical control device through an information carrier. After operation and processing, the numerical control device sends various control signals to control the movement of the machine tool to automatically process parts according to the shape and size required by the drawing. The numerical control machine tool solves the problem of complex, precise, small-batch, and multi-specification part machining, is a flexible and high-efficiency automatic machine tool, represents the development direction of modern machine tool control technology, and is a typical mechatronics product. Therefore, it can be ensured that the tool will not damage the surface of the isolation layer and the base layer during machining.

[0045] In some embodiments, referring to Figure 2 , step S10 includes the following sub-steps:

[0046] S11: covering a layer of release film on one surface of the base layer;

[0047] S12: cutting the release film by laser along the boundary between the specified area and the other area to divide the release film into a first release film for the surface of the specified area and a second release film for the surface of the other area;

[0048] S13: tearing off the second release film, and the remaining first release film is the isolation layer.

[0049] Reference can be made to Figures 5-8 , Figures 5-8 The entire process is demonstrated.

[0050] As shown in Figure 5 , the release film 14 is first covered on the surface of the base layer 13 at this time, and the release film 14 is complete and covers the entire surface of the base layer 13. When covering the release film 14, a film sticking jig needs to be used. After the release film 14 is attached to the surface of the base layer 13, there may be air bubbles between the two, which can be exhausted by the film sticking jig to make the two closely attached. In other embodiments, the release film 14 can only cover the specified area and the surrounding part of the area, or can only cover the specified area, rather than covering the entire surface of the base layer 13.

[0051] As shown in Figure 6 , the release film 14 covers the specified area and the surrounding other area, and is cut by laser along the boundary between the specified area and the other area to divide the release film 14 into a first release film 14a and a second release film 14b. Among them, the shape of the specified area can be understood as the shape of the bracket receiving groove 11. In the illustrated embodiment, the bracket receiving groove 11 is annular, so the shape of the first release film 14a after cutting is also annular. When cutting the release film 14, because the release film 14 is thin, only a small power laser cutting device can be used for cutting, for example, a power of 5-10W laser device, to ensure that the edge of the release film 14 to be cut will not appear burning, curling and other problems. If the edge of the release film 14 is burned and curled, it will cause a gap when the base layer 13 and the surface layer 12 are compounded, resulting in that they cannot be compounded into one whole, and the subsequent manufacturing process of the product.

[0052] As shown in Figure 7As shown, the second release film 14b is torn off, leaving only the first release film 14a, so that the second release film 14b does not interfere with the compounding of the substrate layer 13 and the surface layer 12, and the first release film 14a can separate the substrate layer 13 and the surface layer 12 corresponding to the position of the first release film 14a on one hand, and on the other hand, when machining with CNC, the first release film 14a can also prevent the cutter from scratching the surface of the substrate layer 13. Covering the release film 14 on the entire surface of the substrate layer 13, leaving only the first release film 14a, and tearing off the second release film 14b, is because compared to pasting the release film 14 only in the specified area, such operation saves labor cost and manufacturing cost. Pasting the release film 14 in the specified area is difficult to operate, the specified area is small, and the requirements for production process and precision are too high, which greatly affects the yield of the product.

[0053] As shown in Figure 8 , after the first release film 14a is exposed through the groove bottom of the support receiving groove 11, the specified area of the substrate layer 13 can be exposed through the support receiving groove 11 by only tearing off the first release film 14a. In this embodiment, the adhesion between the first release film 14a and the substrate layer 13 is relatively weak, so the first release film 14a can be removed by tearing. Since the surface of the substrate layer 13 is smooth and has not been machined by the cutter of the CNC, the surface of the specified area of the substrate layer 13 exposed through the support receiving groove 11 is smooth, that is, the surface of the groove bottom of the support receiving groove 11 is smooth, and no additional Mylar sheet needs to be pasted.

[0054] In some embodiments, referring to Figure 3 , step S10 includes the following sub-steps:

[0055] S11: covering a layer of appearance layer on one surface of the substrate layer, the appearance layer being used to realize at least one appearance effect of color, texture, pattern or highlight of the shell;

[0056] S12: cutting the appearance layer along the boundary line between the specified area and the other area by laser to divide the appearance layer into a first appearance layer on the surface of the specified area and a second appearance layer on the surface of the other area, wherein the first appearance layer is the isolation layer.

[0057] The entire process can be demonstrated with reference to Figures 9-12 , Figures 9-12 .

[0058] As shown in Figure 9As shown, the outer layer 15 is used to achieve at least one effect of color, texture, pattern, or highlight of the shell. That is, by setting one or any combination of color, texture, pattern, or highlight on the outer layer 15, and then setting the surface layer 12 to a transparent material (the transparent material mentioned in this application includes materials with a fully transparent effect and materials with a semi-transparent effect, etc., as long as the outer layer 15 can be seen through), the effect set on the outer layer 15 can be seen through the surface layer 12. By covering the entire surface of the base layer 13 with the outer layer 15, the color, texture, pattern, or highlight of the shell can be maximized. In other embodiments, the outer layer 15 can also be set only in a specified location. In such embodiments, the outer layer 15 in the specified area of ​​the base layer 13 also needs to be set so that the outer layer 15 can act as an isolation layer.

[0059] like Figure 10 As shown, following the same steps as in the method of setting the release film 14, this embodiment also requires cutting the outer layer 15 along the boundary line between the designated area and other areas using a laser to divide the outer layer 15 into a first outer layer 15a on the surface of the designated area and a second outer layer 15b on the surface of the other area. In this embodiment, the second outer layer 15b does not need to be removed but remains on the backing plate. Therefore, the division ensures that removing the first outer layer 15a will not affect the second outer layer 15b. In this embodiment, due to the particle size of the pigment raw materials in the outer layer 15, the thickness of the outer layer is greater than the thickness of the release film 14 in the previous embodiment, thus requiring a higher power laser cutting device.

[0060] like Figure 11 The diagram shows the structure of the back panel after the base layer 13 and the surface layer 12 have been laminated, with the first outer layer 15a still in place. In this state, the first outer layer 15a is exposed through the bracket storage groove 11, while the second outer layer 15b is visible through the surface layer 12.

[0061] like Figure 12The first appearance layer 15a is removed from the back plate, and a structural schematic diagram is shown. In this embodiment, the appearance layer 15 is adsorbed on the surface of the specified area by spraying, electroplating or printing. Therefore, the adsorption of the first appearance layer 15a and the base layer 13 is relatively firm, and the first appearance layer 15a cannot be removed by manual tearing. In this case, the first appearance layer 15a can be effectively removed by laser or solvent dissolution. The above method can not only ensure that the first appearance layer 15a is removed completely, but also will not damage the base layer 13. After the first appearance layer 15a is removed, the specified area of the base layer 13 can be exposed through the support storage groove 11. In the solvent dissolution method, the organic solvent (such as banana water) is dropped on the groove bottom of the support storage groove 11, and the organic solvent can dissolve the first appearance layer 15a to expose the specified area of the base layer 13. Because the appearance layer 15 uses different inks for printing according to different patterns, textures and other effects, different patterns need to adjust the proportion of different solvents to achieve the best dissolution effect.

[0062] Banana oil, also known as Banana water and pear oil, is a colorless transparent liquid mixed with a variety of organic solvents. It is named after the early formula containing isoamyl acetate (banana smell). Its main components usually include ethyl acetate, toluene, acetone, ethanol, etc. The proportion is adjusted according to the purpose, and the ester in the common industrial product accounts for 30%-50%, and the aromatic hydrocarbon accounts for 20%-40%. As a typical volatile mixed solvent, it is widely used in the fields of diluting nitro paint, cleaning oil stains and chemical synthesis.

[0063] Banana oil is a highly flammable volatile mixed solvent, its density is usually between 0.86-0.92 g / cm³, the boiling point range is wide (70-140℃), the flash point is as low as-4℃ to 21℃, and it is easy to cause combustion or explosion when encountering fire or high temperature. Its core feature is strong solubility, which can quickly decompose grease, resin and nitrocellulose and other substances, and is miscible with most organic solvents (such as acetone, ethanol), but has very low solubility to water. Compared with the previous embodiment, the isolation layer in this embodiment is replaced by the appearance layer 15. On the one hand, the appearance layer 15 will not affect the compounding of the base layer 13 and the surface layer 12, so it is not necessary to remove the second appearance layer 15b on the surface of other areas, which reduces the process steps and waste of materials; on the other hand, the appearance layer 15 is sandwiched between the base layer 13 and the surface layer 12, which can realize at least one of the color, texture, pattern or highlight of the shell, so as to make the product more beautiful.

[0064] In some embodiments, referring to Figure 6 , step S20: compounding the base layer and the surface layer, comprising:

[0065] S21: Brush the photosensitive glue on the surface of the side of the base layer provided with the isolation layer;

[0066] S22: Cover the surface layer on the side of the base layer brushed with the photosensitive glue, and send it into the bonding machine for compounding.

[0067] The compounding by the bonding machine can compound the base layer and the surface layer into one whole, so that the backboard of the protective shell is more integrated, and the backboard of the protective shell is more conducive to being combined with the frame of the protective shell. In the embodiment, the bonding machine is an ultraviolet curing machine, which irradiates special glue (i.e. photosensitive glue) with ultraviolet rays to make the glue produce polymerization reaction and thus solidify, so as to compound the base layer brushed with the photosensitive glue and the surface layer into one whole. In other embodiments, other ways can also be adopted, as long as the base layer and the surface layer can be connected into one whole.

[0068] Referring back to Figure 11 , the application also provides a support protective shell, which comprises a backboard 10 and a support (not shown in the figure), and the support is rotationally connected with the backboard 10. The support can be selectively accommodated in a support accommodation groove 11 or separated from the support accommodation groove 11, that is, rotated out of the support accommodation groove 11, so as to support the protective shell. The backboard 10 comprises a base layer 13 and a surface layer 12 (see Figure 5 ). One surface of the base layer 13 has a designated area, and the surface layer 12 is connected to the surface of the base layer 13 with the designated area. The support accommodation groove 11 is provided at a position corresponding to the designated area of the surface layer 12, and the support accommodation groove 11 penetrates the surface layer 12 in the thickness direction of the surface layer 12, so that the designated area is exposed to the groove bottom of the support accommodation groove 11, that is, the designated area can be exposed to be seen by the user through the support accommodation groove 11, and the designated area just forms the groove bottom of the support accommodation groove 11. The surface of the designated area is smooth, so that a Mylar sheet does not need to be pasted on the surface of the designated area, which can ensure the neatness of the product and solve the risk of the Mylar sheet falling off, thereby improving the user experience.

[0069] It can be understood that the backboard in the embodiment can be manufactured by the manufacturing method of the backboard described in the above-mentioned embodiments. The surface layer 12 is laminated on the outer surface of the base layer 13, the inner surface of the base layer 13 is the surface facing the electronic device, a through hole penetrating the surface layer in the thickness direction of the surface layer is processed on the surface layer 12 by CNC, and the base layer 13 blocks the opening of the through hole when the base layer 13 is connected with the surface layer 12. The designated area of the base layer 13 and the through hole jointly form the support accommodation groove 11.

[0070] In some embodiments, referring to Figure 12The back plate 10 further comprises an appearance layer 15, which is stacked between the base layer 13 and the surface layer 12, and is used to realize at least one of color, texture, pattern or highlight of the shell. That is, by setting one or any combination of color, texture, pattern or highlight on the appearance layer 15, and then setting the surface layer 12 as a transparent material (the transparent material in this application includes a material with full transparent effect and a material with semi-transparent effect, etc., as long as it can be transparent to the appearance layer 15 to be seen), the effect set on the appearance layer 15 can be transparent through the surface layer 12. In other embodiments, the base layer 13 can also be set as a transparent material, so that the appearance layer 15 can be transparent from both sides. Further, the thickness of the appearance layer 15 can be controlled in the range of 0.02mm~0.05mm, so as to ensure that the appearance layer 15 will not have a great impact on the overall thickness of the back plate.

[0071] In some embodiments, the appearance layer 15 does not cover the part of the base layer 13 exposed through the through hole. When the appearance layer 15 is exposed on the outer surface, it is easy to be oxidized and cause peeling, discoloration, etc., therefore, by removing the appearance layer of the exposed part of the base layer 13 during the manufacturing process of the back plate 10, the problems caused by its exposure can be effectively prevented, and since the support receiving groove 11 occupies a small position, the lack of the appearance layer has little effect on the overall appearance.

[0072] In some embodiments, the thickness of the base layer 13 is less than the thickness of the surface layer 12. Since the support receiving groove 11 needs to be provided on the surface layer 12 for accommodating the support, the thickness of the surface layer has certain requirements. If the thickness of the surface layer 12 is small, it may not be able to completely accommodate the support in the support receiving groove 11, and when the support is received, part of the support will protrude on the surface of the back plate 10, which will cause a bad experience for use. At the same time, in order to make the overall thickness of the back plate 10 thinner, the thickness of the base layer 13 can be reduced when the thickness of the surface layer 12 cannot be reduced, so that the thickness of the base layer 13 is less than the thickness of the surface layer 12, so as to effectively reduce the overall thickness of the back plate 10. Further, the thickness of the base layer 13 is set in the range of 0.8mm~1.2mm, so as to ensure that the base layer 13 will not be too thin, and the base layer 13 is too thin, which will cause the groove bottom of the support receiving groove 11 to be easily broken. At the same time, the thickness of the surface layer is set in the range of 1.3mm~2.0mm, which can completely accommodate the support and control the overall thickness of the back plate to about 3mm, so as to ensure that the protective shell will not be too thick and heavy.

[0073] In some embodiments, the base layer 13 and the surface layer 12 are connected by adhesive. In this embodiment, the adhesion of the two is achieved by coating a photosensitive adhesive between the base layer 13 and the surface layer 12, and then placing them into a bonding machine for compounding. The bonding machine uses a ultraviolet curing machine, which irradiates the special glue (i.e. photosensitive adhesive) with ultraviolet light to make the glue polymerize and thus solidify, so that the base layer 13 and the surface layer 12 coated with the photosensitive adhesive are compounded into one whole.

[0074] The manufacturing method of the support protective shell and the back plate of the support protective shell disclosed in the embodiments of the present application is described in detail above, and the principles and implementation manners of the present application are described by using examples. The above embodiment description is only used to help understand the core idea of the present application; meanwhile, for those skilled in the art, the specific implementation manners and application ranges will be changed according to the idea of the present application. In summary, the content of the present description should not be understood as a limitation of the present application.

Claims

1. A method for manufacturing a back plate of a bracket protective shell, characterized in that, include: Take a layer of board material as the base layer, and set a designated area on one of the surfaces of the base layer; A release film is applied to the surface of the base layer where the designated area is located. The release film is cut with a laser along the boundary line between the designated area and other areas to divide the release film into a first release film for the surface of the designated area and a second release film for the surface of the other areas. Remove the second release film, leaving the first release film as an isolation layer; Take another layer of board as the surface layer and cover the side of the base layer where the isolation layer is located, and combine the base layer and the surface layer to make them a whole; The portion of the surface layer covering the isolation layer is cut off by CNC machining, a bracket storage groove is machined on the surface layer, and the isolation layer is exposed at the bottom of the bracket storage groove. Remove the isolation layer to expose the designated area through the bracket storage slot; the surface of the designated area is smooth.

2. A method for manufacturing the back plate of a bracket protective shell, characterized in that, include: Take a layer of board material as the base layer, and set a designated area on one of the surfaces of the base layer; A surface layer is covered on the base layer where the designated area is located, and the surface layer is used to achieve at least one appearance effect of the back panel, such as color, texture, pattern or highlight. Along the boundary line between the designated area and other areas, the outer layer is cut by laser to divide the outer layer into a first outer layer on the surface of the designated area and a second outer layer on the surface of the other areas, wherein the first outer layer serves as an isolation layer. Take another layer of board as the surface layer and cover the side of the base layer where the isolation layer is located, and combine the base layer and the surface layer to make them a whole; The portion of the surface layer covering the isolation layer is cut off by CNC machining, a bracket storage groove is machined on the surface layer, and the isolation layer is exposed at the bottom of the bracket storage groove. Remove the isolation layer to expose the designated area through the bracket storage slot; the surface of the designated area is smooth.

3. The method for manufacturing the back plate of the bracket protective shell according to claim 2, characterized in that: The outer layer is adsorbed onto the surface of the base layer by spraying, electroplating, or printing.

4. The method for manufacturing the back plate of the bracket protective shell according to claim 3, characterized in that, The method for removing the isolation layer is as follows: the first outer layer of the bottom of the bracket storage slot is removed by laser lithography or solvent dissolution, so that the designated area is exposed through the bracket storage slot.

5. A method for manufacturing the back plate of the bracket protective shell according to any one of claims 1-4, characterized in that, The composite process of the base layer and the surface layer includes: Photosensitive adhesive is applied to the surface of the substrate layer on the side where the isolation layer is disposed. The surface layer is covered on the side of the base layer that has been coated with the photosensitive adhesive, and then fed into an adhesive bonding machine for lamination.

6. A bracket protective shell, characterized in that, include: The back panel is manufactured by the manufacturing method of the back panel of the bracket protective shell according to any one of claims 1-5. The back panel includes a base layer and a surface layer. One surface of the base layer has a designated area. The surface layer is connected to the surface of the base layer having the designated area. The surface layer has a bracket storage groove at the position corresponding to the designated area. The bracket storage groove penetrates the surface layer along the thickness direction. The designated area is exposed at the bottom of the bracket storage groove. The surface of the designated area is smooth. The bracket is rotatably connected to the back plate, and the bracket can be selectively stored in the bracket storage slot or separated from the bracket storage slot.

7. The bracket protective shell according to claim 6, characterized in that, The back panel further includes an appearance layer, which is located between the base layer and the surface layer. The appearance layer is used to achieve at least one appearance effect of the back panel, such as color, texture, pattern or highlight. The surface layer is made of a transparent material, and / or the base layer is made of a transparent material.

8. The bracket protective shell according to claim 6, characterized in that, The base layer and the surface layer are connected by adhesive.

9. The bracket protective shell according to any one of claims 6-8, characterized in that, The thickness of the base layer is less than the thickness of the surface layer, and / or the thickness of the base layer ranges from 0.8 mm to 1.2 mm, and the thickness of the surface layer ranges from 1.3 mm to 2.0 mm.

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