CN113122897A

CN113122897A - Preparation method of shell assembly, shell assembly and electronic equipment

Info

Publication number: CN113122897A
Application number: CN202010022767.XA
Authority: CN
Inventors: 陈颖
Original assignee: Realme Chongqing Mobile Communications Co Ltd
Current assignee: Realme Chongqing Mobile Communications Co Ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2021-07-16

Abstract

The application discloses a preparation method of a shell assembly, the shell assembly and an electronic device. The preparation method of the shell assembly comprises the following steps: providing an aluminum alloy shell base material; wherein the aluminum alloy housing substrate has an inner surface and an outer surface disposed opposite to each other; the inner surface is the surface of the aluminum alloy shell substrate facing the internal space of the electronic equipment, and the outer surface is the surface of the aluminum alloy shell substrate facing the external space of the electronic equipment; performing first treatment on the aluminum alloy shell base material to form a base layer on the outer surface of the aluminum alloy shell base material; performing a second treatment on the aluminum alloy shell substrate subjected to the first treatment to form a first texture layer embedded in the base layer; and carrying out third treatment on the aluminum alloy shell base material subjected to the second treatment to form a second texture layer embedded into the base layer. The technical scheme of this application can richen aluminum alloy shell's outward appearance effect.

Description

Preparation method of shell assembly, shell assembly and electronic equipment

Technical Field

The present disclosure relates to the field of electronic products, and in particular, to a method for manufacturing a housing assembly, a housing assembly manufactured by the method, a housing assembly, and an electronic device using the housing assembly.

Background

With the development and progress of technology, aluminum alloy housings have been widely used in electronic devices. However, in the related art, the surface treatment process of the aluminum alloy shell substrate mainly comprises sand blasting anodic oxidation, so that a single matte or bright surface effect is generally obtained, the appearance effect is relatively limited, and the homogenization of the appearance effect of the aluminum alloy shell is serious.

The above contents are only for assisting understanding of the technical solution of the present application, and do not represent an admission that the above contents are prior art.

Disclosure of Invention

The application mainly aims to provide a shell assembly preparation method, a shell assembly prepared by the shell assembly preparation method, a shell assembly and electronic equipment applying the shell assembly, and aims to enrich the appearance effect of an aluminum alloy shell.

An embodiment of the present application provides a method for manufacturing a housing assembly, including the steps of:

providing an aluminum alloy shell base material; wherein the aluminum alloy housing substrate has an inner surface and an outer surface disposed opposite to each other; the inner surface is the surface of the aluminum alloy shell substrate facing the internal space of the electronic equipment, and the outer surface is the surface of the aluminum alloy shell substrate facing the external space of the electronic equipment;

performing first treatment on the aluminum alloy shell base material to form a base layer on the outer surface of the aluminum alloy shell base material;

performing a second treatment on the aluminum alloy shell substrate subjected to the first treatment to form a first texture layer embedded in the base layer;

and carrying out third treatment on the aluminum alloy shell base material subjected to the second treatment to form a second texture layer embedded into the base layer.

An embodiment of the present application further provides a housing assembly, which is prepared by a method for preparing a housing assembly, the method for preparing a housing assembly including the steps of:

An embodiment of the present application also provides a housing assembly, including:

an aluminum alloy housing substrate having an inner surface and an outer surface disposed in a back-to-back arrangement;

the base layer is arranged on the outer surface of the aluminum alloy shell base material, and a first embedded position and a second embedded position which penetrate through the base layer are formed on the surface of the base layer;

the first texture layer is embedded in the first embedding position;

and the second texture layer is embedded in the second embedding position.

An embodiment of the present application also provides an electronic device, including:

a housing assembly;

the display screen assembly is covered with the shell assembly and encloses to form an accommodating space, and the inner surface of the shell assembly is positioned in the accommodating space; and

the mainboard is arranged in the accommodating space and is electrically connected with the display screen assembly;

the housing assembly includes:

the first texture layer is embedded in the first embedding position;

and the second texture layer is embedded in the second embedding position.

According to the technical scheme, three patterns are formed on the outer surface of the aluminum alloy shell base material. The three patterns and textures are mutually overlapped and mutually matched, so that the composite appearance effect of various textures can be realized on the obtained aluminum alloy shell; in addition, the composite appearance effect also has good layering and stereoscopic impression. Therefore, the appearance effect of the aluminum alloy shell is greatly enriched, and the pursuit of users on the stereoscopic effect is met.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be transformed according to the drawings without creative efforts.

FIG. 1 is a schematic flow chart of a first exemplary embodiment of a method of making a housing assembly of the present application;

FIG. 2 is a schematic flow chart diagram illustrating an exemplary embodiment of step S400 in FIG. 1;

FIG. 3 is a flowchart illustrating an exemplary embodiment of step S410 in FIG. 2;

FIG. 4 is a flowchart of an exemplary embodiment of step S500 in FIG. 1;

FIG. 5 is a schematic flow chart of a second exemplary embodiment of a method of making a housing assembly of the present application;

FIG. 6 is a schematic flow chart of a third exemplary embodiment of a method of making a housing assembly of the present application;

FIG. 7 is a schematic flow chart of a fourth exemplary embodiment of a method of making a housing assembly of the present application;

FIG. 8 is a schematic structural view of a first embodiment of the housing assembly of the present application;

FIG. 9 is a top view of the housing assembly of FIG. 8;

FIG. 10 is a left side elevational view of the housing assembly of FIG. 8;

FIG. 11 is a schematic structural view of a second embodiment of the housing assembly of the present application;

FIG. 12 is a top view of the housing assembly of FIG. 11;

FIG. 13 is a left side elevational view of the housing assembly of FIG. 11;

FIG. 14 is a schematic structural view of a third embodiment of the housing assembly of the present application;

fig. 15 is a top view of the housing assembly of fig. 14.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Shell assembly	33	Second embedding position
10	Aluminum alloy shell base material	50	First texture layer
				30	Base layer	70	Second texture layer
31	The first embedding position

The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1, fig. 1 is a schematic flow chart of a first exemplary embodiment of a method for manufacturing a housing assembly according to the present application. In this embodiment, the method of making the housing assembly includes the steps of:

s100, providing an aluminum alloy shell base material; wherein the aluminum alloy housing substrate has an inner surface and an outer surface disposed opposite to each other; the inner surface is the surface of the aluminum alloy shell substrate facing the internal space of the electronic equipment, and the outer surface is the surface of the aluminum alloy shell substrate facing the external space of the electronic equipment;

s300, carrying out first treatment on the aluminum alloy shell base material to form a base layer on the outer surface of the aluminum alloy shell base material;

s400, performing second treatment on the aluminum alloy shell base material subjected to the first treatment to form a first texture layer embedded into the base layer;

and S500, performing third treatment on the aluminum alloy shell base material subjected to the second treatment to form a second texture layer embedded into the base layer.

It can be understood that, according to the technical scheme of the application, three patterns of textures are formed on the outer surface of the aluminum alloy shell base material. The three patterns and textures are mutually overlapped and mutually matched, so that the composite appearance effect of various textures can be realized on the obtained aluminum alloy shell; in addition, the composite appearance effect also has good layering and stereoscopic impression. Therefore, the appearance effect of the aluminum alloy shell is greatly enriched, and the pursuit of users on the stereoscopic effect is met.

Specifically, the base layer, the first texture layer and the second texture layer may be selected as follows:

the base layer is an anodic oxide layer, the first texture layer is an anodic oxide layer, and the second texture layer is a metal coating.

Therefore, the appearance effect of being richer in layering sense and stereoscopic impression can be realized by utilizing the gloss and color difference between the anodic oxidation layer and the metal coating. In addition, because the aluminum alloy shell substrate is selected, the forming process of the metal coating and the forming process of the anodic oxidation layer can be directly carried out on the surface of the aluminum alloy shell substrate, and the method is simple, convenient, efficient and reliable.

Of course, the base layer may be an anodized layer, and the first texture layer and the second texture layer may be metal plating layers, and at this time, only the two metal plating layers need to be selected from different metal types, so that the appearance effects of the two layers have different gloss and/or color, even though the first texture layer and the second texture layer can be set off. One skilled in the art can also reasonably select other matching forms of the base layer, the first texture layer and the second texture layer according to the above concept, such as various matching selected from an ink layer, a metal plating layer, an anodic oxidation layer, an ultraviolet light curing adhesive layer, and the like, which is not described in detail herein. At this time, corresponding process steps may also be different according to different recipes, and those skilled in the art may reasonably set the specific processes of the first, second, and third processes according to different recipes, which is not described herein again.

Also, as shown in fig. 8 to 10, in an embodiment of the present disclosure, on the outer side of the aluminum alloy housing substrate 10, the first texture layer 50 may penetrate through the base layer 30 (i.e., the first embedding portion 31 penetrates through the base layer 30), and the second texture layer 70 may penetrate through the base layer 30 (i.e., the second embedding portion 33 penetrates through the base layer 30);

as shown in fig. 11 to 13, in an embodiment of the present disclosure, on the outer side of the aluminum alloy housing substrate 10, the first texture layer 50 may not penetrate through the base layer 30 (i.e., the first embedding portion 31 does not penetrate through the base layer 30), and the second texture layer 70 may not penetrate through the base layer 30 (i.e., the second embedding portion 33 does not penetrate through the base layer 30);

of course, in other embodiments of the present housing assembly 100, only one of the first and second

textured layers

50, 70 may extend through the base layer 30, while the other does not extend through the base layer 30.

Further, the case assembly produced by the case assembly production method is an aluminum alloy case as described above and hereinafter.

In an embodiment of the foregoing step S300, the step of performing the first treatment on the aluminum alloy case base material to form the base layer on the outer surface of the aluminum alloy case base material, that is, the step S300, includes:

and carrying out anodic oxidation treatment on the outer surface of the aluminum alloy shell base material to form a first anodic oxidation layer.

Specifically, the main steps of the anodic oxidation treatment are as follows:

degreasing (in a weak alkaline environment, the pH value is less than 9.5) → ash removal → anodic oxidation (the concentration of sulfuric acid is 220 g/L-240 g/L, the concentration of aluminum ions is 1 g/L-10 g/L, the temperature is 18-20 ℃, the oxidation voltage is 8V-9V, and the time is 10 min-40 min) → surface conditioning (2 times) → ultrasonic water washing → dyeing (dye formula is prepared according to the required color) → hole sealing (the concentration is 10 g/L-12 g/L, the temperature is 95-98 ℃, and the time is 40 min-50 min) → drying.

After the process, the outer surface of the aluminum alloy shell substrate is anodized and dyed to form a first anodized layer (with the thickness ranging from 10 micrometers to 15 micrometers), namely a base layer, so that a good, stable and reliable basis is provided for obtaining the subsequent combined pattern texture effect.

Referring to fig. 2, in an embodiment of the step S400, the step of performing a second treatment on the aluminum alloy housing substrate subjected to the first treatment to form a first texture layer embedded in the base layer, i.e., the step S400, includes:

s410, carrying out first surface treatment on the surface of the base layer to form a first embedded position penetrating through the base layer on the surface of the base layer;

and S420, carrying out anodic oxidation treatment on the outer surface of the aluminum alloy shell base material exposed from the first embedding position to form a second anodic oxidation layer in the first embedding position.

Specifically, the main steps of the anodic oxidation treatment are as follows:

degreasing (in a weak alkaline environment, the pH value is less than 9.5) → ash removal → anodic oxidation (the concentration of sulfuric acid is 220 g/L-240 g/L, the concentration of aluminum ions is 1 g/L-10 g/L, the temperature is 18-20 ℃, the oxidation voltage is 8V-9V, and the time is 10 min-30 min) → surface conditioning (2 times) → ultrasonic water washing → dyeing (dye formula is prepared according to the required color) → sealing (the concentration is 10 g/L-12 g/L, the temperature is 95-98 ℃, and the time is 40 min-50 min) → drying.

After the process, the outer surface of the aluminum alloy shell base material exposed from the first embedding position is subjected to anodic oxidation dyeing to form a second anodic oxidation layer (the thickness range is 5-8 microns), namely a first texture layer; so as to be crossly corresponded and overlapped with the first anodic oxide layer, and the light rays are reflected and refracted for multiple times between the two anodic oxide layers to form a combined pattern texture effect with more layering sense and three-dimensional sense.

Referring to fig. 3, in an embodiment of the step S410, the step of performing a first surface treatment on the surface of the base layer to form a first embedding position penetrating through the base layer on the surface of the base layer, that is, the step S410, includes:

s411, carrying out glue spraying treatment on the surface of the base layer to form a shielding glue layer on the surface of the base layer;

specifically, the strippable masking glue is sprayed on the surface of the base layer (first anodic oxide layer), so that a masking glue layer can be formed on the surface of the base layer, masking preparation is made for subsequent removal treatment, and the protection of the part of the base layer (first anodic oxide layer) which does not need to be removed is realized. The thickness range of the masking glue layer is 20-30 microns.

S412, performing laser etching treatment on the shielding adhesive layer to expose part of the surface of the base layer from the shielding adhesive layer;

specifically, the masking adhesive layer can be subjected to laser etching treatment by adopting optical fiber laser equipment according to the actual pattern texture design requirement, so that part of the masking adhesive layer on the surface of the base layer is removed by laser etching, part of the surface of the base layer is exposed by the masking adhesive layer, a hollow-out pattern texture is formed, and a removal path is provided for subsequent removal treatment. The laser etching treatment has the advantages of convenience in processing and high precision, the production efficiency of the shell assembly can be improved, and the precision of the hollowed-out pattern textures can be higher, so that the precision of the pattern textures formed by the second anodic oxidation layer obtained by anodic oxidation after removal treatment can be improved, the deviation between the actual pattern textures and the designed pattern textures is reduced, and the appearance effect of the shell assembly is improved.

And S413, removing the surface of the base layer exposed by the shielding adhesive layer to form a first embedded position penetrating through the base layer on the surface of the base layer.

Specifically, the surface of the base layer (the first anodic oxidation layer) exposed by the masking adhesive layer is subjected to oxide layer removal treatment by using a sodium hydroxide solution, and the hollow pattern texture penetrates through the outer surface of the aluminum alloy shell base material, so that the outer surface is in an oxidizable state and is prepared for subsequent anodic oxidation treatment. Of course, the removal process may also be accomplished using a turn-milling or other suitable process.

Through the steps, the first embedding position with high precision can be obtained, so that convenience is provided for obtaining the second anodic oxidation layer with high precision, and further the combined pattern texture effect, the layering sense and the stereoscopic impression formed by the fact that the second anodic oxidation layer and the first anodic oxidation layer are in cross correspondence and are mutually overlapped are improved.

And the application of the steps also realizes the customization of the pattern texture presented by the second anodic oxidation layer, namely the pattern texture presented by the second anodic oxidation layer can be changed according to the actual design requirement, and different pattern textures can be processed by the same set of process steps to meet different appearance requirements. Therefore, the limitation of the single appearance process of the aluminum alloy shell base material in the related technology is greatly broken through, the single matte or bright surface effect is broken through, the appearance effect of multilayer compounding such as gradual change, grating or other designs is obtained, and more choices are provided for the appearance process of the aluminum alloy shell base material.

Referring to fig. 4, in an embodiment of the step S500, the step of performing a third treatment on the aluminum alloy housing substrate subjected to the second treatment to form a second texture layer embedded in the base layer, that is, the step S500, includes:

s510, carrying out second surface treatment on the surface of the base layer to form a second embedded position penetrating through the base layer on the surface of the base layer;

and S520, carrying out anodic oxidation treatment on the outer surface of the aluminum alloy shell base material exposed from the second embedding position to form a third anodic oxide layer in the second embedding position.

Specifically, the main steps of the anodic oxidation treatment are as follows:

degreasing (in a weak alkaline environment, the pH value is less than 9.5) → ash removal → anodic oxidation (the concentration of sulfuric acid is 170 g/L-190 g/L, the concentration of aluminum ions is 1 g/L-10 g/L, the temperature is 18-20 ℃, the oxidation voltage is 8V-9V, and the time is 10 min-30 min) → surface conditioning (2 times) → ultrasonic water washing → dyeing (dye formula is prepared according to the required color) → sealing (the concentration is 10 g/L-12 g/L, the temperature is 95-98 ℃, and the time is 25 min-35 min) → drying.

After the process, the outer surface of the aluminum alloy shell base material exposed from the second embedding position is subjected to anodic oxidation dyeing to form a third anodic oxide layer (the thickness range is 3-5 microns), namely a second texture layer; therefore, the light rays are in cross correspondence with and overlapped with the first anodic oxide layer and the second anodic oxide layer, and the light rays are reflected and refracted for multiple times among the three anodic oxide layers to form a combined pattern texture effect with better layering sense and stereoscopic impression, for example: a colorful rainbow pattern effect or other effects according to design requirements.

In an embodiment of the above step S510, the step of performing a second surface treatment on the surface of the base layer to form a second embedding position penetrating through the base layer on the surface of the base layer, that is, the step S510, includes:

and performing turn-milling treatment on the surface of the base layer to form a second embedded position penetrating through the base layer on the surface of the base layer.

Specifically, a five-axis precision numerical control machine tool and a single crystal diamond cutter are adopted to further turn and mill the surface of the base layer (the first anodic oxidation layer) so as to process and carve a second embedded position for exposing the outer surface of the aluminum alloy shell substrate, thereby providing conditions for anodic oxidation. The pattern texture milled by the cutter can be designed according to the actual pattern texture design requirement.

The turn-milling treatment has the advantages of convenience in processing and high precision, the production efficiency of the shell assembly can be improved, the pattern texture precision of the obtained third anodic oxidation layer can be higher, the appearance effect after the third anodic oxidation layer and the second anodic oxidation layer are superposed and combined is better, and the deviation between the actual pattern texture and the designed pattern texture can be effectively reduced. And the turning and milling treatment also realizes the customization of the pattern texture presented by the third anode oxide layer, namely the pattern texture presented by the third anode oxide layer can be changed according to the actual design requirement, and different pattern textures can be processed in the same set of process steps to meet different appearance requirements. Therefore, the limitation of the single appearance process of the aluminum alloy shell base material in the related technology is greatly broken through, the single matte or bright surface effect is broken through, the appearance effect of multilayer compounding such as gradual change, grating or other designs is obtained, and more choices are provided for the appearance process of the aluminum alloy shell base material.

It should be noted that, because the masking glue layer is disposed on the base layer (the first anodized layer), there are at least two ways for the turn-milling process: (1) turning and milling the shielding adhesive layer and the base layer below the shielding adhesive layer; (2) peeling off the shielding glue layer, and then performing turning and milling treatment on the base layer. In addition, the second embedding position can be processed by laser etching or other reasonable processes.

In addition, the first embedding position can be a linear avoiding groove, a curved avoiding groove, a square groove or a circular through hole; the first embedding position can exist singly or simultaneously; when the first embedding positions exist simultaneously, the first embedding positions can be staggered with each other or not staggered with each other. Similarly, the second embedding position can be a linear avoiding groove, a curved avoiding groove, a square groove or a circular through hole; the second embedded position can exist singly or simultaneously; when the second embedding positions exist simultaneously, the second embedding positions can be staggered with each other or not staggered with each other. Moreover, the first embedding position and the second embedding position can be arranged in a staggered manner or not staggered. The first embedding position and the second embedding position do not occupy the whole surface of the base layer.

For example, in the embodiments shown in fig. 8 to 10 and in the embodiments shown in fig. 11 to 13, the first embedding locations 31 and the second embedding locations 33 are arranged alternately; in the embodiment shown in fig. 14 and 15, the first engagement portion 31 and the second engagement portion 33 are not staggered.

Referring to fig. 5, fig. 5 is a schematic flow chart of a manufacturing method of the housing assembly according to the second exemplary embodiment of the present application. In this embodiment, after the step of performing the third treatment on the aluminum alloy housing base material subjected to the second treatment to form the second texture layer embedded in the base layer, the method further includes:

s700, performing a surface protection process on the surfaces of the base layer, the first texture layer, and the second texture layer to form a protection layer on the surfaces of the base layer, the first texture layer, and the second texture layer.

Specifically, for the aluminum alloy shell substrate subjected to the third treatment, one more ultraviolet-curable finish paint spraying treatment may be performed on the sides of the base layer, the first texture layer and the second texture layer, which are away from the aluminum alloy shell substrate, so as to form a protective layer on the outermost side of the shell assembly, so as to protect the inner layer structure, protect the aluminum alloy shell substrate, and improve the scratch resistance of the shell assembly.

The ultraviolet light fixing type finish paint is selected, and ultraviolet light is utilized to solidify the finish paint, so that the processing process of the protective layer can be effectively simplified, the processing convenience of the protective layer is improved, and the production efficiency of the shell assembly is improved.

Referring to fig. 6, fig. 6 is a schematic flow chart illustrating a method for manufacturing a housing assembly according to a third exemplary embodiment of the present application. In this embodiment, after the step of performing the third treatment on the aluminum alloy housing base material subjected to the second treatment to form the second texture layer embedded in the base layer, the method further includes:

s600, performing film coating treatment on the surfaces of the base layer, the first texture layer and the second texture layer to form optical film coating layers on the surfaces of the base layer, the first texture layer and the second texture layer.

Specifically, after the third treatment is performed on the aluminum alloy shell substrate subjected to the second treatment and before the surface protection treatment is performed on the surfaces of the base layer, the first texture layer and the second texture layer, a film coating treatment may be performed on the surfaces of the formed anodic oxide layers (i.e., the surfaces of the first anodic oxide layer, the second anodic oxide layer and the third anodic oxide layer, i.e., the surfaces of the base layer, the first texture layer and the second texture layer) to form an optical film coating layer on the side of the base layer, the first texture layer and the second texture layer away from the aluminum alloy shell substrate.

The optical coating layer can be formed by adopting two modes of evaporation coating or magnetron sputtering coating, and the coating target material can be at least one of silicon oxide, titanium oxide, niobium oxide and thallium oxide; therefore, the appearance glossiness of the shell assembly can be improved through the better transmissivity of the optical coating layer. The optical coating layer can be a multilayer structure, for example, 3 to 7 layers, and the materials of different layers can be the same or different; thus, the glossiness of the shell assembly can be improved better. In addition, the thickness range of the optical coating layer can be 100-600 nanometers, and the optical coating layer in the thickness range is beneficial to improving the stereoscopic impression and the layering impression of the appearance effect of the shell assembly.

It should be noted that the optical coating layer is formed by further stacking a film layer having a refractive index different from that of the three anodic oxide layers on the surfaces of the anodic oxide layers (i.e., the surfaces of the first anodic oxide layer, the second anodic oxide layer, and the third anodic oxide layer), so that the light is reflected and refracted for multiple times between the optical coating layer and the three anodic oxide layers to have appearance effects of more depth, more layering, and changeable colors.

In addition, the optical coating layer and the protective layer can exist on the shell component at the same time, and the optical coating layer can be arranged between the protective layer and the three anode oxide layers to obtain the protective effect of the protective layer.

Referring to fig. 7, fig. 7 is a schematic flow chart illustrating a method for manufacturing a housing assembly according to a fourth exemplary embodiment of the present application. In this embodiment, before the step of subjecting the aluminum alloy case base material to the first treatment to form the base layer on the outer surface of the aluminum alloy case base material, the method further includes:

s200, polishing the outer surface of the aluminum alloy shell base material.

Specifically, the main processes of the polishing treatment are as follows: rough polishing, middle polishing and mirror polishing.

The rough polishing is wet polishing by matching 1000# to 2000# sponge sand paper with pure water;

the middle polishing is wet polishing by matching 4000# to 5000# sponge sand paper with pure water;

the mirror surface polishing has the following two schemes:

(1) mirror polishing is carried out by matching an ultrafine cloth wheel with polishing wax such as white wax, green wax and the like;

(2) adopting polyurethane damping mirror polishing leather to match with the mirror polishing of silicon oxide polishing solution (or aluminum oxide polishing solution);

the outer surface of the aluminum alloy shell base material can achieve a mirror surface effect after being polished; namely, the outer surface of the aluminum alloy shell base material can have a mirror reflection effect, and the glossiness G value is larger than 600. Therefore, the flatness of the outer surface of the aluminum alloy shell substrate can be effectively improved, and flaws can be removed, so that subsequent anodic oxidation treatment can be better carried out; thereby obtain the first anodic oxidation layer that combines good with aluminum alloy housing substrate to make the stability of the whole rete of aluminum alloy housing substrate surface effectively promote, and then promote the quality of the pattern texture of the casing subassembly that finally obtains, realize better outward appearance effect.

The present application also proposes a shell component prepared by the method for preparing a shell component as described above, and the specific flow of the method for preparing a shell component is detailed in the foregoing embodiments. Since the housing assembly adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by all the technical solutions of all the embodiments are achieved, and no further description is given here.

The present application further provides a housing assembly, which includes:

the first texture layer is embedded in the first embedding position;

and the second texture layer is embedded in the second embedding position.

Further, in order to form a protective layer on the outermost side of the shell assembly for protecting the inner layer structure, protecting the aluminum alloy shell base material and improving the scratch resistance of the shell assembly, the protective layer is further arranged on the base layer, the first texture layer and the second texture layer.

Furthermore, optical coating layers are further arranged on the base layer, the first texture layer and the second texture layer.

Specifically, the optical coating layer can be formed by adopting two modes of evaporation coating or magnetron sputtering coating, and the coating target material can be at least one of silicon oxide, titanium oxide, niobium oxide and thallium oxide; therefore, the appearance glossiness of the shell assembly can be improved through the better transmissivity of the optical coating layer. The optical coating layer can be a multilayer structure, for example, 3 to 7 layers, and the materials of different layers can be the same or different; thus, the glossiness of the shell assembly can be improved better. In addition, the thickness range of the optical coating layer can be 100-600 nanometers, and the optical coating layer in the thickness range is beneficial to improving the stereoscopic impression and the layering impression of the appearance effect of the shell assembly.

It should be noted that the optical coating layer is formed by further stacking a film layer having a refractive index different from that of the three anodic oxide layers on the surfaces of the anodic oxide layers (i.e., the surfaces of the first anodic oxide layer, the second anodic oxide layer, and the third anodic oxide layer), so that the light is reflected and refracted for multiple times between the optical coating layer and the three anodic oxide layers to have appearance effects of more depth, more layering, and changeable illusion-color.

Further, the base layer, the first texture layer and the second texture layer may be further configured as follows:

a thickness difference exists between at least two of the base layer, the first texture layer, and the second texture layer.

Specifically, the thickness of the base layer ranges from 10 microns to 15 microns, the thickness of the first texture layer ranges from 5 microns to 8 microns, and the thickness of the second texture layer ranges from 3 microns to 5 microns. In one embodiment, the thickness of the base layer is thicker than the thickness of the first texture layer, and the thickness of the first texture layer is thicker than the thickness of the second texture layer. Of course, in other embodiments, the thickness of the base layer may be thicker than that of the second texture layer, and the thickness of the second texture layer may be thicker than that of the first texture layer; or the thickness of the first texture layer is thicker than that of the second texture layer, and the thickness of the second texture layer is thicker than that of the base layer; or the thickness of the first texture layer is thicker than that of the base layer, and the thickness of the base layer is thicker than that of the second texture layer; or the thickness of the base layer is thicker than that of the first texture layer, and the thickness of the first texture layer is consistent with that of the second texture layer.

It can be understood that when at least two of the base layer, the first texture layer and the second texture layer have thickness difference, the surfaces of the outer side of the aluminum alloy shell, which can be used for reflecting light, are increased, and the emergent angles of the light after reflection are also enriched; therefore, the appearance effect of the finally obtained aluminum alloy shell is more remarkable.

The present application also proposes an electronic device, which includes the housing assembly as described above, and the specific structure of the housing assembly is detailed in the foregoing embodiments. Since the electronic device adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by all the technical solutions of all the embodiments are achieved, and no further description is given here. Wherein the electronic device further comprises:

the mainboard is arranged in the accommodating space and is electrically connected with the display screen assembly.

It is understood that the electronic device may be, but is not limited to, a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), an e-book reader, an MP3 (motion Picture Experts Group Audio Layer III) player, an MP4 (motion Picture Experts Group Audio Layer IV) player, a notebook computer, a car computer, a set-top box, a smart tv, a wearable device, a navigator, a handheld game console, etc.

The above description is only an alternative embodiment of the present application, and not intended to limit the scope of the present application, and all equivalent modifications made by the present specification and drawings or directly/indirectly applied to other related technical fields under the inventive concept of the present application are included in the scope of the present application.

Claims

1. A method of making a housing assembly, comprising the steps of:

2. The production method according to claim 1, wherein the step of subjecting the aluminum alloy case base material to the first treatment to form a base layer on the outer surface of the aluminum alloy case base material comprises:

3. The production method according to claim 1, wherein the step of subjecting the aluminum alloy housing base material subjected to the first treatment to a second treatment to form a first texture layer embedded in the base layer comprises:

carrying out first surface treatment on the surface of the base layer to form a first embedded position penetrating through the base layer on the surface of the base layer;

and carrying out anodic oxidation treatment on the outer surface of the aluminum alloy shell base material exposed from the first embedding position so as to form a second anodic oxidation layer in the first embedding position.

4. The method of claim 3, wherein the step of performing a first surface treatment on the surface of the base layer to form a first embedding location through the base layer on the surface of the base layer comprises:

spraying glue on the surface of the base layer to form a shielding glue layer on the surface of the base layer;

carrying out laser etching treatment on the shielding adhesive layer to expose partial surface of the base layer from the shielding adhesive layer;

and removing the surface of the base layer exposed by the shielding adhesive layer to form a first embedded position penetrating through the base layer on the surface of the base layer.

5. The production method according to claim 1, wherein the step of subjecting the aluminum alloy housing base material subjected to the second treatment to a third treatment to form a second texture layer embedded in the base layer comprises:

carrying out second surface treatment on the surface of the base layer to form a second embedded position penetrating through the base layer on the surface of the base layer;

and carrying out anodic oxidation treatment on the outer surface of the aluminum alloy shell base material exposed from the second embedding position so as to form a third anodic oxide layer in the second embedding position.

6. The method of claim 5, wherein the step of performing a second surface treatment on the surface of the base layer to form a second embedding location through the base layer on the surface of the base layer comprises:

7. The method according to claim 1, wherein after the step of subjecting the aluminum alloy housing base material subjected to the second treatment to a third treatment to form a second texture layer embedded in the base layer, the method further comprises:

and carrying out surface protection treatment on the surfaces of the base layer, the first texture layer and the second texture layer so as to form a protection layer on the surfaces of the base layer, the first texture layer and the second texture layer.

8. The method according to claim 1, wherein after the step of subjecting the aluminum alloy housing base material subjected to the second treatment to a third treatment to form a second texture layer embedded in the base layer, the method further comprises:

and carrying out film coating treatment on the surfaces of the base layer, the first texture layer and the second texture layer so as to form optical film coating layers on the surfaces of the base layer, the first texture layer and the second texture layer.

9. The method of claim 1, wherein the step of subjecting the aluminum alloy case substrate to the first treatment to form a base layer on the outer surface of the aluminum alloy case substrate further comprises:

and polishing the outer surface of the aluminum alloy shell base material.

10. A housing component produced by the production method according to any one of claims 1 to 9.

11. A housing assembly, comprising:

the first texture layer is embedded in the first embedding position;

and the second texture layer is embedded in the second embedding position.

12. The housing assembly of claim 11, wherein a protective layer is disposed over the base layer, the first textured layer, and the second textured layer;

and/or optical coating layers are further arranged on the base layer, the first texture layer and the second texture layer.

13. The housing assembly of claim 11 wherein a difference in thickness exists between at least two of the base layer, the first textured layer and the second textured layer.

14. An electronic device, comprising:

a housing assembly as claimed in any one of claims 10 to 13;