Method for preparing housing component, housing component and electronic device

Abstract

The present application provides a method for preparing a shell component, a shell component and an electronic device, wherein the method for preparing the shell component comprises: preparing a composite component, wherein the composite component comprises a substrate and a metal insert, wherein the metal insert is embedded in the substrate and exposed relative to the outer surface of the substrate; preparing a paint film layer on the surface of the composite component, wherein the paint film layer is arranged on the outer surface of the substrate, wherein the paint film layer is provided with a notch, wherein the notch penetrates the paint film layer along the thickness direction of the paint film layer and exposes at least part of the metal insert. The shell component prepared by the method for preparing the shell component provided by the present application has a good metallic texture.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a method for preparing a shell component, a shell component and an electronic device. Background Art

[0002] The shell parts of current electronic devices are usually made of metal materials, and the shell parts have a good metal texture and a good appearance. For example, the shell parts of laptops or tablets are commonly made of metal materials such as aluminum alloys, and the metal texture of the shell parts is good. However, due to the high density of aluminum alloys, the weight of the entire electronic device is high. When the shell parts are made of non-metallic materials such as carbon fiber boards, the weight of the entire electronic device can be greatly reduced, but the metallic visual effect of the shell parts cannot be achieved. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a method for preparing a shell component, a shell component and an electronic device. The shell component prepared by the method for preparing the shell component has a good metallic texture.

[0004] The present application provides a method for preparing a shell component, and the method for preparing a shell component includes:

[0005] preparing a composite part, the composite part comprising a substrate and a metal insert, wherein the metal insert is embedded in the substrate and exposed relative to an outer surface of the substrate;

[0006] A paint film layer is prepared on the surface of the composite part. The paint film layer is arranged on the outer surface of the substrate. The paint film layer is provided with a notch. The notch penetrates the paint film layer along the thickness direction of the paint film layer and exposes at least part of the metal insert.

[0007] In the method for preparing the shell part provided in the embodiment of the present application, a composite part is prepared so that the metal insert is embedded in the substrate, and the metal insert is exposed relative to the outer surface of the substrate, so that the outer surface of the metal insert constitutes part of the outer surface of the composite part. At the same time, a paint film layer is prepared on the surface of the composite part, and at least part of the metal insert is exposed by using the gap of the paint film layer, so that the prepared shell part can present the metallic visual effect of the metal insert, so that the prepared shell part has a good metallic texture. In addition, the outer surface of the substrate is covered with a paint film layer, so that the shell part can achieve the effects of presenting appearance color, corrosion resistance, etc. through the paint film layer.

[0008] In addition, compared with the existing method of using metal materials to prepare the entire shell, in the preparation method of the embodiment of the present application, in the prepared composite part, the metal insert is only embedded in a local area of ​​the substrate, which can reduce the weight of the shell while ensuring that the shell has a good metal texture. The shell prepared by the preparation method provided by the embodiment of the present application has a metal insert embedded in the substrate, achieving a metallization effect on the surface of the shell, breaking the plastic and cheap feeling of conventional shells, and improving the appearance of the shell.

[0009] In a possible implementation, the step of preparing a paint film layer on the surface of the composite part includes:

[0010] Prepare a film layer, which is disposed on the outer surface of the substrate and covers the outer surface of the metal insert, and the film layer includes a paint film layer and a film layer to be removed, and the film layer to be removed covers the outer surface of the metal insert;

[0011] The film layer to be removed is removed to form a gap.

[0012] In the step of preparing the paint film layer on the surface of the composite part, the film layer can be prepared by using existing mature processes such as spraying, which is simple to operate and is conducive to large-scale production.

[0013] In a possible implementation, in the step of preparing the film layer, the outer surface of the metal insert includes a first area and a second area, the first area is arranged around the second area, the paint film layer covers the first area, and the film layer to be removed covers the second area;

[0014] In the step of removing the film to be removed, the notch exposes the second area.

[0015] By arranging a paint film layer on the outer surface of the substrate and covering the first area of ​​the outer surface of the metal insert, the paint film layer can simultaneously cover the outer surface of the substrate and part of the outer surface of the metal insert, so that the paint film layer can cover the joining gap between the substrate and the metal insert, ensuring that the paint film layer will not expose the outer surface of the substrate. At the same time, the appearance of the shell part has no joining gap between the substrate and the metal insert, which is beneficial to improving the appearance of the shell part.

[0016] In a possible embodiment, after the step of preparing the paint film layer on the surface of the composite part, the step further includes: forming an oxide layer on the outer surface of the metal insert;

[0017] Alternatively, after the step of preparing the composite part and before the step of preparing the paint film layer on the surface of the composite part, the method further includes: forming an oxide layer on the outer surface of the metal insert.

[0018] In a possible implementation, the steps of preparing the composite part include:

[0019] Prepare a material layer of a composite part, wherein the material layer of the composite part comprises a laminated structure and a metal insert, wherein the laminated structure comprises at least one layer of substrate material layer stacked in sequence, and the metal insert is arranged in the laminated structure;

[0020] The material layers of the composite part are hot-pressed to form a base material through hot-pressing the laminated structure, and the material layers of the composite part are hot-pressed to form a composite part.

[0021] In the process of preparing composite parts by hot pressing, the material layer of the substrate can melt and have fluidity under hot pressing conditions, and adhere to the edge of the metal insert, so that the formed substrate can adhere to the edge of the metal insert, thereby ensuring that there is no gap between the substrate and the metal insert, and further ensuring that the appearance of the prepared shell part has no bonding gap between the substrate and the metal insert, which is conducive to improving the refinement of the prepared shell part.

[0022] By forming an oxide layer on the outer surface of the metal insert to protect the outer surface of the metal insert, the corrosion resistance and wear resistance of the metal insert can be improved, damage to the metal insert caused by water vapor, external force, etc. can be avoided, and the metal appearance effect of the shell part can be ensured.

[0023] An embodiment of the present application also provides a shell component, which includes a substrate, a metal insert and a paint film layer. The metal insert is embedded in the substrate and exposed relative to the outer surface of the substrate. The paint film layer is arranged on the outer surface of the substrate. The paint film layer is provided with a notch. The notch penetrates the paint film layer along the thickness direction of the paint film layer and exposes at least part of the metal insert.

[0024] In the shell member provided in the embodiment of the present application, by embedding a metal insert in the substrate and making the metal insert exposed relative to the outer surface of the substrate, and at the same time providing a paint film layer on the outer surface of the substrate, and using the gap of the paint film layer to expose at least part of the metal insert, the shell member can present a metallic visual effect of the metal insert, thereby achieving a good metallic texture of the shell member. In addition, by providing a paint film layer to cover the outer surface of the substrate, the shell member can achieve the effects of presenting appearance color, corrosion resistance, etc. through the paint film layer.

[0025] In addition, the metal inserts are embedded in local areas of the substrate. On the one hand, this can ensure that the shell has a good metal texture and achieve a metallization effect on the surface of the shell, breaking the plastic and cheap feel of conventional shells and improving the appearance of the shell. On the other hand, compared with the existing shell that is made of metal materials as a whole, it can reduce the weight of the shell.

[0026] In a possible implementation, the outer surface of the metal insert includes a first area and a second area, the first area is arranged around the second area, the paint film layer covers the first area, and the gap exposes the second area. By arranging the paint film layer to cover the first area of ​​the outer surface of the metal insert to cover the bonding gap between the substrate and the metal insert, it is ensured that the paint film layer does not expose the outer surface of the substrate, and at the same time, the appearance of the shell part does not have the bonding gap between the substrate and the metal insert, thereby facilitating the improvement of the appearance of the shell part.

[0027] In a possible implementation manner, the minimum width of the first region is D, where D≥0.05 mm.

[0028] In a possible implementation, the outer surface of the metal insert is flush with the outer surface of the substrate.

[0029] In a possible implementation, the shell further includes an oxide layer, which is disposed on the outer surface of the metal insert. By providing the oxide layer on the outer surface of the metal insert, the corrosion resistance and wear resistance of the metal insert can be improved, and damage to the metal insert caused by water vapor, external force, etc. can be avoided, thereby ensuring the metal appearance of the shell.

[0030] An embodiment of the present application also provides an electronic device, including a functional device and a housing, wherein the functional device is installed in the housing, and the housing includes a housing member manufactured according to the above-mentioned method for preparing the housing member, or the housing includes the above-mentioned housing member. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0033] Figure 2 A schematic diagram of the top view of the housing member provided in the first embodiment of the present application;

[0034] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of the shell member shown;

[0035] Figure 4 for Figure 2 A schematic diagram of the top view of the metal insert in the shell member shown;

[0036] Figure 5 This is a schematic diagram of the cross-sectional structure of the housing member in the second embodiment of the present application;

[0037] Figure 6 A schematic diagram of the preparation process of a shell member provided in the third embodiment of the present application;

[0038] Figure 7 A schematic diagram of the preparation process of a shell member provided in the fourth embodiment of the present application. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] See also Figure 1 , Figure 1 A schematic diagram of the structure of an electronic device 1 provided in an embodiment of the present application.

[0041] The electronic device 1 may be a laptop computer, a tablet computer, a mobile phone, etc. In the embodiment of the present application, the electronic device 1 is described by taking a laptop computer as an example. The electronic device 1 includes a housing 100, a display screen 300 and functional components, and the functional components are installed in the housing 100.

[0042] Specifically, the housing 100 includes a front housing 110, a bearing housing 130, and a rear housing 150. The outer surface of the front housing 110 constitutes the appearance surface of the electronic device 1, and the front housing 110 constitutes the appearance shell of the electronic device 1. The bearing housing 130 is rotatably connected to the front housing 110 to realize the opening and closing of the housing 100. The rear housing 150 is installed on the side of the bearing housing 130 away from the front housing 110. It can be understood that in this embodiment, the front housing 110 is the A housing of a laptop computer, the bearing housing 130 is the C housing of a laptop computer, and the rear housing 150 is the D housing of a laptop computer.

[0043] The display screen 300 is mounted on the front housing 110, and the functional components are mounted on the bearing housing 130. Exemplarily, the functional components include components such as a keyboard 500, a mainboard, and a central processing unit (CPU).

[0044] See also Figure 2 , Figure 3 and Figure 4 , Figure 2 This is a schematic diagram of the top view of the housing member provided in the first embodiment of the present application. Figure 3 for Figure 2 The cross-sectional structure diagram of the shell member shown in FIG. Figure 4 for Figure 2The schematic diagram of the top view of the metal insert 30a in the shell is shown. Figure 2 and Figure 3 The shell parts in Figure 1 The front shell 110 in the electronic device 1 is taken as an example. It is understandable that the housing member may also be an appearance shell member of other electronic devices 1, such as a back cover of a tablet computer, a back cover of a mobile phone, etc.

[0045] The embodiment of the present application provides a shell component, including a substrate 10 , a metal insert 30 and a paint film layer 50 , wherein the metal insert 30 and the paint film layer 50 are both arranged on the substrate 10 .

[0046] Specifically, the substrate 10 includes an outer surface 11. The outer surface 11 of the substrate 10 refers to the surface of the substrate 10 facing the outside of the electronic device 1. In this embodiment, the material of the substrate 10 is a non-metallic material. Exemplarily, the material of the substrate 10 includes but is not limited to carbon fiber cloth, resin film, glass fiber cloth, composite material, plastic resin, blend and other materials.

[0047] The metal insert 30 is embedded in the substrate 10, and the metal insert 30 is exposed relative to the outer surface 11 of the substrate 10. Among them, the metal insert 30 is used to make the shell part present a metallic visual effect, thereby improving the appearance of the shell part. In this embodiment, the material of the metal insert 30 is a metal material. In the embodiment of the present application, the metal material includes pure metal and metal alloy. Exemplarily, the material of the metal body includes but is not limited to metal materials such as magnesium alloy, aluminum alloy, stainless steel and nickel alloy. In this embodiment, the material of the metal insert 30 is selected from corrosion-resistant metal materials such as stainless steel and nickel alloy. At this time, since the metal insert 30 itself has corrosion resistance, the metal insert 30 does not need to be processed later.

[0048] There can be at least one metal insert 30, each metal insert 30 is embedded in the substrate 10, and each metal insert 30 is exposed relative to the outer surface 11 of the substrate 10. Exemplarily, in this embodiment, there are two metal inserts 30, and the two metal inserts 30 are respectively embedded in the substrate 10. The two metal inserts 30 are metal inserts 30a and metal inserts 30b. Among them, the shape of the metal insert 30a is a long strip, and the shape of the metal insert 30b is a cross. It can be understood that the shape of the metal insert 30 can also be a regular shape or an irregular shape such as a sheet, a curve, a trademark (logotype, logo) shape, a text shape, etc., and the present application does not limit the shape of the metal insert 30. Among them, taking the metal insert 30a as an example, the extension length of the metal insert 30a is not limited, and the width of the metal insert 30a is W.

[0049] Each metal insert 30 includes an outer surface 31. The outer surface 31 of the metal insert 30 refers to the surface of the metal insert 30 facing the outside of the electronic device 1. The outer surface 31 of each metal insert 30 is exposed relative to the outer surface 11 of the substrate 10, so that the outer surface 31 of the metal insert 30 is exposed relative to the outer surface 11 of the substrate 10. In this embodiment, the outer surface 31 of the metal insert 30 is flush with the outer surface 11 of the substrate 10. "Flush" means that along the thickness direction of the shell, the height difference between the outer surface 31 and the outer surface 11 is within the range of ±10μm.

[0050] The outer surface 31 of each metal insert 30 includes a first area Q10 and a second area Q20, and the first area Q10 is arranged around the second area Q20. In this embodiment, the first area Q10 is arranged around the entire circumference of the second area Q20. It can be understood that in other embodiments, the first area Q10 can also be arranged around a portion of the circumference of the second area Q20, and the present application does not limit this.

[0051] Combined with reference Figure 4 , taking the outer surface 31 of the metal insert 30a as an example. In this embodiment, the first area Q10 in the outer surface 31 of the metal insert 30a is arranged around the entire circumference of the second area Q20. The second area Q20 includes a first part Q21 and a second part Q22 connected to the first part Q21, and there are two first parts Q21 and two second parts Q22. Along the extension direction of the metal insert 30a, the two first parts Q21 are located on both sides of the second area Q20. Along the width direction of the metal insert 30a, the two second parts Q22 are located on both sides of the second area Q20. Exemplarily, the width of the first part Q21 is D1, and the width of the second part Q22 is D2.

[0052] The minimum width of the first region Q10 in the outer surface 31 of the metal insert 30 is D. For example, D≥0.05 mm. Taking the metal insert 30a as an example, the minimum width D of the first region Q10 is the minimum value of the width D1 of the first portion Q21 and the width D2 of the second portion Q22.

[0053] The paint film layer 50 is disposed on the outer surface 11 of the substrate 10. Exemplarily, the thickness of the paint film layer 50 is 10μm ~ 100μm. Among them, the paint film layer 50 can be used to make the shell part present an appearance color and / or increase the corrosion resistance of the shell part and other effects. Exemplarily, the material of the paint film layer 50 can be an acid and alkali resistant material. It is understandable that the paint film layer 50 may include at least one film layer, such as one layer, two layers, three layers, etc., and the embodiment of the present application does not limit the number of film layers of the paint film layer 50. Exemplarily, the paint film layer 50 includes a treating agent layer, a primer layer, a color paint layer and a topcoat layer stacked in sequence on the outer surface 11 of the substrate 10. Among them, the treating agent layer is used to increase the adhesion of the paint film layer 50 on the substrate 10.

[0054] The paint film layer 50 is provided with a notch 51, and the notch 51 penetrates the paint film layer 50 along the thickness direction of the paint film layer 50, and exposes at least part of the metal insert 30. Among them, "the notch 51 exposes at least part of the metal insert 30" means that the metal insert 30 can be observed from the notch 51. In this embodiment, the notch 51 exposes the second area Q20 in the outer surface 31 of the metal insert 30, so that the second area Q20 is exposed relative to the paint film layer 50. Exemplarily, the notch 51 can be set in the paint film layer 50 by CNC processing, so that the notch 51 exposes the second area Q20 of the metal insert 30. Taking the second area Q20 of the metal insert 30a exposed as an example, since the accuracy of CNC processing is approximately 0.05mm~0.1mm, at this time, the width W of the metal insert 30a is 0.1mm~0.2mm larger than the diameter of the CNC tool, so that the notch 51 is formed without exposing the outer surface 11 of the substrate 10.

[0055] In this embodiment, the paint film layer 50 also covers the first area Q10 of the outer surface 31 of the metal insert 30 to cover the joining gap between the substrate 10 and the metal insert 30, ensuring that the paint film layer 50 will not expose the outer surface 11 of the substrate 10. At the same time, the appearance of the shell part has no joining gap between the substrate 10 and the metal insert 30, thereby improving the appearance of the shell part.

[0056] In the shell member provided in the first embodiment of the present application, by embedding the metal insert 30 in the substrate 10 and exposing the metal insert 30 relative to the outer surface 11 of the substrate 10, and at the same time providing the paint film layer 50 on the outer surface 11 of the substrate 10, and using the gap 51 of the paint film layer 50 to expose at least part of the metal insert 30, the shell member can present the metal visual effect of the metal insert 30, so that the shell member has a good metal texture. In addition, by providing the paint film layer 50 to cover the outer surface 11 of the substrate 10, it is beneficial for the shell member to achieve the effects of presenting the appearance color, corrosion resistance, etc. through the paint film layer 50.

[0057] In addition, the metal insert 30 is embedded in a local area of ​​the substrate 10. On the one hand, it can ensure that the shell has a good metal texture and achieve a metallization effect on the surface of the shell, breaking the plastic and cheap feel of the shell made of conventional non-metallic materials, and improving the appearance of the shell. On the other hand, compared with the existing shell made of metal materials as a whole, it can reduce the weight of the shell.

[0058] See also Figure 5 , Figure 5 It is a schematic diagram of the cross-sectional structure of the shell member in the second embodiment of the present application.

[0059] A second embodiment of the present application provides a shell component, which is different from the shell component of the first embodiment in that the shell component of the second embodiment further includes an oxide layer 40 .

[0060] Specifically, in the shell part of the second embodiment, the oxide layer 40 is provided on the outer surface 31 of the metal insert 30. In this embodiment, the oxide layer 40 covers the second area Q20 in the outer surface 31 of the metal insert 30. The notch 51 of the paint film layer 50 exposes the oxide layer 40. Among them, the oxide layer 40 is used to increase the corrosion resistance and wear resistance of the metal insert 30. Exemplarily, in this embodiment, the metal insert 30 can be selected from non-corrosion-resistant metal materials such as magnesium alloys and aluminum alloys, and the oxide layer 40 can be obtained by oxidizing the metal insert 30. It is understandable that the metal insert 30 can also be selected from corrosion-resistant metal materials such as stainless steel and nickel alloys. In order to further improve the corrosion resistance and wear resistance of the metal insert 30, the oxide layer 40 can also be provided on the surface of the corrosion-resistant metal insert 30.

[0061] In the shell part provided in the second embodiment, by providing an oxide layer 40 on the outer surface 31 of the metal insert 30, the corrosion resistance and wear resistance of the metal insert 30 can be improved, damage to the metal insert 30 caused by water vapor, external force, etc. can be avoided, and the metal appearance effect of the shell part is ensured.

[0062] See also Figure 6 , Figure 6 This is a schematic diagram of the preparation process of the housing member provided in the third embodiment of the present application. Figure 6 The housing member is described by taking the front housing 110 of the first embodiment as an example.

[0063] The third embodiment of the present application further provides a method for preparing a housing, comprising:

[0064] S1. Prepare a composite part 20 , wherein the composite part 20 includes a substrate 10 and a metal insert 30 . The metal insert 30 is embedded in the substrate 10 and exposed relative to an outer surface 11 of the substrate 10 .

[0065] The method of preparing the composite part 20 includes but is not limited to various methods such as injection molding and hot pressing molding. For example, when the composite part 20 is prepared by injection molding, the material of the substrate 10 can be selected from composite materials, plastic resins, blends, etc. For example, when the composite part 20 is prepared by hot pressing molding, the material of the substrate 10 can be selected from carbon fiber cloth, resin film, glass fiber cloth, etc.

[0066] In this embodiment, the composite part 20 is prepared by hot pressing. Specifically, the steps of preparing the composite part 20 include:

[0067] Prepare a material layer of a composite part, wherein the material layer of the composite part comprises a laminated structure and a metal insert 30, wherein the laminated structure comprises at least one material layer of a substrate stacked in sequence, and the metal insert 30 is arranged in the laminated structure;

[0068] The material layers of the composite part are subjected to hot pressing molding, and the laminated structure is formed into a substrate 10 through hot pressing molding, and the material layers of the composite part are formed into a composite part 20 through the hot pressing molding.

[0069] In the process of preparing the composite part 20 by hot pressing, the material layer of the substrate can be melted and fluid under hot pressing conditions, and attached to the edge of the metal insert 30, so that the formed substrate 10 can be attached to the edge of the metal insert 30, thereby ensuring that there is no gap between the substrate 10 and the metal insert 30, and then ensuring that the appearance of the shell part has no combination gap between the substrate 10 and the metal insert 30, which is conducive to improving the refinement of the prepared shell part. In particular, when the material of the substrate 10 is a resin film, the fluidity of the resin film under hot pressing conditions is better than that of carbon fiber under hot pressing conditions, and the appearance of the prepared composite part 20 is better.

[0070] In the following, the substrate 10 is taken as an example of a carbon fiber board, and the material layer of the substrate is a carbon fiber cloth. The process of preparing the composite part 20 is specifically as follows: stacking multiple layers of carbon fiber cloth in sequence to form a laminated structure, placing the metal insert 30 on the laminated structure formed by the multiple layers of carbon fiber cloth, and obtaining a composite material layer. The composite material layer is hot-pressed, and the metal insert 30 is hot-pressed together with the multiple layers of carbon fiber cloth to prepare the composite part 20. In the process of hot-pressing the composite material layer, the laminated structure formed by the multiple layers of carbon fiber cloth melts and forms the substrate 10.

[0071] S2. Prepare a paint film layer 50 on the surface of the composite part 20. The paint film layer 50 is disposed on the outer surface 11 of the substrate 10. The paint film layer 50 is provided with a notch 51. The notch 51 penetrates the paint film layer 50 along the thickness direction of the paint film layer 50 and exposes at least a portion of the metal insert 30.

[0072] In this embodiment, the step of preparing the paint film layer 50 on the surface of the composite part 20 includes:

[0073] S21, preparing a film layer 60, which is disposed on the outer surface 11 of the substrate 10 and covers the outer surface 31 of the metal insert 30, and the film layer 60 includes a paint film layer 50 and a film layer 601 to be removed, and the film layer 601 to be removed covers the outer surface 31 of the metal insert 30.

[0074] Exemplarily, the film layer 60 can be prepared on the outer surface 11 of the substrate 10 by spraying, electrophoresis, physical vapor deposition (PVD), screen printing, etc. It can be understood that in this embodiment, the material of the paint film layer 50 is the same as the material of the film layer 601 to be removed. In this embodiment, the paint film layer 50 covers the first area Q10 in the outer surface 31 of the metal insert 30, and the film layer 601 to be removed covers the second area Q20 in the outer surface 31 of the metal insert 30. In the step of preparing the paint film layer 50 on the surface of the composite part 20, the film layer 60 can be prepared by existing mature processes such as spraying, which is simple to operate and conducive to large-scale production.

[0075] S22 , removing the film layer 601 to be removed to form a gap 51 .

[0076] In this embodiment, the film layer 601 to be removed in the film layer 60 is removed by CNC machining to form a gap 51 of the paint film layer 50, so as to expose the outer surface 31 of the metal insert 30 in the gap 51. In this embodiment, the width of the gap 51 formed by CNC machining is smaller than the width of the metal insert 30, and while ensuring that the gap 51 exposes the second area Q20 in the outer surface 31 of the metal insert 30, the paint film layer 50 covers the first area Q10 in the outer surface 31 of the metal insert 30, ensuring that the paint film layer 50 does not expose the outer surface 11 of the substrate 10, thereby facilitating the improvement of the appearance of the shell part.

[0077] In the method for preparing the shell part provided in the embodiment of the present application, the composite part 20 is prepared so that the metal insert 30 is embedded in the substrate 10, and the metal insert 30 is exposed relative to the outer surface 11 of the substrate 10, so that the outer surface 31 of the metal insert 30 constitutes part of the outer surface of the composite part 20. At the same time, a paint film layer 50 is prepared on the surface of the composite part 20, and at least part of the metal insert 30 is exposed by using the gap 51 of the paint film layer 50, so that the prepared shell part can present the metal visual effect of the metal insert 30, so that the prepared shell part has a good metal texture. In addition, the outer surface 11 of the substrate 10 is covered with the paint film layer 50, so that the shell part can achieve the effects of presenting appearance color, corrosion resistance, etc. through the paint film layer 50.

[0078] In addition, compared with the existing method of using metal materials to prepare the entire shell part, in the preparation method of the embodiment of the present application, in the prepared composite part 20, the metal insert 30 is only embedded in a local area of ​​the substrate 10, which can reduce the weight of the shell part while ensuring that the shell part has a good metal texture. The shell part prepared by the preparation method provided by the embodiment of the present application has a metal insert 30 embedded in the substrate 10, which achieves a metallization effect on the surface of the shell part, breaking the plastic and cheap feeling of the shell part made of conventional non-metallic materials, and improving the appearance of the shell part.

[0079] In addition, in the step of preparing the paint film layer 50 on the surface of the composite part 20, the film layer 601 to be removed that covers the second area Q20 of the outer surface 31 of the metal insert 30 is removed to expose the second area Q20. At this time, the paint film layer 50 covers the first area Q10 of the outer surface 31 of the metal insert 30 to cover the bonding gap between the substrate 10 and the metal insert 30, thereby ensuring that the paint film layer 50 will not expose the outer surface 11 of the substrate 10. At the same time, the appearance of the shell part is free of the bonding gap between the substrate 10 and the metal insert 30, thereby improving the appearance effect of the shell part.

[0080] See also Figure 7 , Figure 7 This is a schematic diagram of the preparation process of the housing member provided in the fourth embodiment of the present application. Figure 7 The housing member is described by taking the front housing 110 of the second embodiment as an example.

[0081] The fourth embodiment provides a method for preparing a housing, comprising:

[0082] S1. Prepare a composite part 20 , wherein the composite part 20 includes a substrate 10 and a metal insert 30 . The metal insert 30 is embedded in the substrate 10 and exposed relative to an outer surface 11 of the substrate 10 .

[0083] S2. Prepare a paint film layer 50 on the surface of the composite part 20. The paint film layer 50 is disposed on the outer surface 11 of the substrate 10. The paint film layer 50 is provided with a notch 51. The notch 51 penetrates the paint film layer 50 along the thickness direction of the paint film layer 50 and exposes at least a portion of the metal insert 30.

[0084] Wherein, step S1 and step S2 are the same as step S1 and step S2 in the method for preparing the shell member provided in the third embodiment, and are not described in detail here.

[0085] S3 . Forming an oxide layer 40 on the outer surface 31 of the metal insert 30 .

[0086] Exemplarily, in this embodiment, an anodic oxidation method is used to prepare an oxide layer 40 in the second region Q20 of the outer surface 31 of the metal insert 30. Specifically, the metal insert 30 is anodized to form an oxide layer 40 in the second region Q20 of the outer surface 31 of the metal insert 30. It is understood that in other embodiments, the metal insert 30 may be treated by micro-arc oxidation, physical vapor deposition (PVD), chemical oxidation, thermal oxidation, etc. to prepare and form an oxide layer 40 on the outer surface 31 of the metal insert 30. The present application does not limit the preparation method of the oxide layer 40.

[0087] In this embodiment, after the step of preparing the paint film layer 50 on the surface of the composite part 20, the step of forming the oxide layer 40 on the outer surface 31 of the metal insert 30 is performed. At this time, the paint film layer 50 can be made of acid and alkali resistant materials to avoid damage during the process of anodizing the metal insert 30 to form the oxide layer 40. It can be understood that in other embodiments, the step of forming the oxide layer 40 on the outer surface 31 of the metal insert 30 can also be performed after the step of preparing the composite part 20 and before the step of preparing the paint film layer 50 on the surface of the composite part 20. That is, the oxide layer 40 is first formed on the outer surface 31 of the metal insert 30 in the composite part 20, and then the paint film layer 50 is formed on the surface of the composite part 20, and the gap 51 of the paint film layer 50 exposes the oxide layer 40.

[0088] Alternatively, in other embodiments, in the step of preparing the composite part 20, an oxide layer 40 may be first formed on the outer surface 31 of the metal insert 30, and then the metal insert 30 with the oxide layer 40 may be embedded in the substrate 10 to form the composite part 20, and at this time, the oxide layer 40 is exposed relative to the outer surface 11 of the substrate 10.

[0089] In the preparation method of the shell part provided in the fourth embodiment, an oxide layer 40 is formed on the outer surface 31 of the metal insert 30 to protect the exposed outer surface 31 of the metal insert 30, thereby improving the corrosion resistance and wear resistance of the metal insert 30, avoiding damage to the metal insert 30 caused by water vapor, external force, etc., and ensuring the metal appearance effect of the shell part.

[0090] What is disclosed above is only a preferred embodiment of the present application, and it certainly cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A method for preparing a shell member, characterized in that: The method for preparing the shell member comprises: Prepare a composite part, the composite part comprising a substrate and a metal insert, the metal insert is embedded in the substrate and exposed relative to the outer surface of the substrate, the outer surface of the metal insert comprises a first area and a second area, the first area is arranged around the second area; A paint film layer is prepared on the surface of the composite part, the paint film layer is arranged on the outer surface of the substrate, the paint film layer covers the first area, the paint film layer is provided with a notch, the notch penetrates the paint film layer along the thickness direction of the paint film layer and exposes at least a portion of the metal insert, and the notch exposes the second area; The steps of preparing the composite part include: Prepare a material layer of a composite part, wherein the material layer of the composite part comprises a laminated structure and the metal insert, wherein the laminated structure comprises at least one layer of substrate material layer stacked in sequence, and the metal insert is arranged in the laminated structure; The material layer of the composite part is subjected to hot pressing forming, the laminated structure is formed into the substrate through the hot pressing forming, and the material layer of the composite part is formed into the composite part through the hot pressing forming.

2. The method for preparing a shell member according to claim 1, characterized in that: The step of preparing a paint film layer on the surface of the composite part comprises: Prepare a film layer, the film layer is disposed on the outer surface of the substrate and covers the outer surface of the metal insert, the film layer includes the paint film layer and a film layer to be removed, and the film layer to be removed covers the outer surface of the metal insert; The film layer to be removed is removed to form the gap.

3. The method for preparing a shell member according to claim 2, characterized in that: In the step of preparing the film layer, the film layer to be removed covers the second area; In the step of removing the film to be removed, the notch exposes the second area.

4. The method for preparing a shell member according to any one of claims 1 to 3, characterized in that: After the step of preparing the paint film layer on the surface of the composite part, the method further includes: forming an oxide layer on the outer surface of the metal insert; Alternatively, after the step of preparing the composite part and before the step of preparing the paint film layer on the surface of the composite part, the method further includes: forming an oxide layer on the outer surface of the metal insert.

5. A housing member, characterized in that: The shell component includes a composite component and a paint film layer. The composite component includes a substrate and a metal insert. The metal insert is embedded in the substrate and exposed relative to the outer surface of the substrate. The outer surface of the metal insert includes a first area and a second area. The first area is arranged around the second area. The paint film layer is arranged on the outer surface of the substrate and covers the first area. The paint film layer is provided with a notch. The notch penetrates the paint film layer along the thickness direction of the paint film layer and exposes at least part of the metal insert. The notch exposes the second area. The composite component is made of a material layer of the composite component by hot pressing. The material layer of the composite component includes a laminated structure and the metal insert. The laminated structure includes at least one layer of substrate material layer stacked in sequence. The metal insert is arranged in the laminated structure. The laminated structure is formed into the substrate by the hot pressing.

6. The housing member according to claim 5, characterized in that: The minimum width of the first region is D, where D≥0.05 mm.

7. The housing member according to claim 5, characterized in that: The outer surface of the metal insert is flush with the outer surface of the substrate.

8. The housing member according to any one of claims 5 to 7, characterized in that: The shell component further includes an oxide layer, which is disposed on the outer surface of the metal insert.

9. An electronic device, characterized in that: It comprises a functional device and a shell, wherein the functional device is installed on the shell, and the shell comprises a shell part made by the shell part preparation method according to any one of claims 1 to 4, or the shell comprises the shell part according to any one of claims 5 to 8.

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