CN111615274A

CN111615274A - Shell, terminal equipment and manufacturing method of shell

Info

Publication number: CN111615274A
Application number: CN201910134040.8A
Authority: CN
Inventors: 谭景标; 胡文垒
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2020-09-01
Also published as: WO2020168962A1

Abstract

The application provides a shell, terminal equipment and a manufacturing method of the shell. In this casing, the prime paint layer has coated in proper order on the substrate of casing, first colored paint layer, the protection paint layer, second colored paint layer and finish paint layer, the material of first colored paint layer is different with the material of second colored paint layer, the transparency of protection paint layer is greater than or equal to first predetermined threshold value, and, the casing still includes the hollow structure who runs through to second colored paint layer from finish paint layer, and like this, through hollow structure, first colored paint layer and second colored paint layer, make the casing have comparatively obvious subregion, can demonstrate a stereovision well, user demand has been satisfied, user experience has been improved.

Description

Shell, terminal equipment and manufacturing method of shell

Technical Field

The present disclosure relates to the field of electronic devices, and more particularly, to a housing, a terminal device, and a method for manufacturing the housing.

Background

With the continuous progress of the production process, the requirements of users on the appearance performance and the beauty of the shell of the electronic product are continuously improved, the requirements on the color, the material and the process of the appearance are more and more diversified, and the requirement on having the differentiated appearance is continuously pursued, for example, the appearance of the product is required to have the layering sense.

Disclosure of Invention

The application provides a new casing, through set up two kinds of colored paint layers and hollow structure in the casing, can be so that the casing presents better stereovision, has improved user experience.

In a first aspect, there is provided a housing, comprising:

a substrate, a hollow structure, and a plurality of coating layers coated on the substrate, wherein,

on one side of the substrate, along the thickness direction of the substrate, the plurality of coating layers sequentially include: priming paint layer, first colored paint layer, protection paint layer, second colored paint layer and finish paint layer, hollow structure follows finish paint layer run through to the second colored paint layer, the transparency of protection paint layer is more than or equal to first predetermined threshold value, the material of first colored paint layer with the material of second colored paint layer is different.

The material of the first colored paint layer 115 and the material of the second colored paint layer 116 are different, which may mean that the materials of the two colored paint layers are different, or that the colors of the two colored paint layers are different, and this is not limited herein.

Therefore, the casing that this application embodiment provided, the prime paint layer has been coated in proper order on the substrate of casing, first colored paint layer, the protective paint layer, second colored paint layer and finish paint layer, the material of first colored paint layer and the material of second colored paint layer are different, the transparency of protective paint layer is greater than or equal to first predetermined threshold value, and, the casing still includes the hollow structure who runs through to second colored paint layer from finish paint layer, and like this, through hollow structure, first colored paint layer and second colored paint layer, make the casing have comparatively obvious subregion, can demonstrate a stereovision well, user demand has been satisfied, user experience has been improved.

In addition, because first colored paint layer and second colored paint layer are set up the different positions at the casing, the quantity and the material of the coating of coating above two colored paint layers all can be different, like this, no matter whether the colour of the material of two colored paint layers is the same, light passes through the casing, to a certain extent, can demonstrate different colours at first colored paint layer and second colored paint layer, namely, the colour of the casing that sees through hollow structure and the colour that the region except hollow structure appears in the casing are different, can make the casing can demonstrate the colour of two kinds of different colored paints on the whole, reached the integrative effect of colour separation on a casing, the colour scope that the casing can demonstrate has been improved.

Optionally, the transparency of the first pigmented paint layer is greater than or equal to a second preset threshold value, the transparency of the primer layer is greater than or equal to a third preset threshold value,

the substrate comprises a texture area and a non-texture area, wherein the projection of the pattern formed by the hollow structures on the surface of the substrate is at least partially overlapped with the projection of the texture area on the surface of the substrate, and the surface of the substrate is vertical to the thickness direction of the substrate.

Therefore, the shell provided by the embodiment of the application can present the texture area of the substrate through the hollow structure under the condition that neither the first colored paint layer nor the primer layer is non-transparent, the transparency of the area except the hollow structure in the shell is very small, and the non-texture area except the texture area in the substrate is rarely or basically not presented, so that on one hand, the aesthetic property of the shell is improved, and on the other hand, the effect of integrating transparency and non-transparency is achieved on one shell.

Optionally, one side of the texture region close to the primer layer is coated with a first electroplated layer, and the transparency of the first electroplated layer is greater than or equal to a fourth preset threshold value.

Therefore, according to the shell provided by the embodiment of the application, the brightness and the reflectivity of the texture region are increased by coating the electroplated layer (for example, the first electroplated layer) on the texture region of the substrate, the texture region of the substrate can be better presented through the hollow structure, especially, the texture region of the substrate can be better presented under the condition that more coatings are provided on the substrate, and the user experience is better improved.

Optionally, the texture of the textured area is square in shape.

Optionally, the material of the textured region and the material of the non-textured region may be the same or different, and are not limited herein.

Optionally, the plurality of coating layers further comprises a second electroplated layer disposed between the second basecoat layer and the topcoat layer, the second electroplated layer having a transparency greater than or equal to a fifth predetermined threshold.

That is, the plurality of coating layers sequentially includes: the primer layer, the first colored paint layer, the protective paint layer, the second colored paint layer, the second electroplated layer and the finish paint layer. Wherein the hollow structure penetrates through the finish paint layer, the second electroplated layer and the second colored paint layer.

Therefore, the casing that this application embodiment provided through set up the second electroplated layer between second paint layer and finish paint layer, can improve the metal feel of casing to, because the second electroplated layer is close to finish paint layer, can make whole casing can present better metal feel.

Optionally, the plurality of coating layers further comprises a transition paint layer disposed between the second color paint layer and the second electroplated layer, the transparency of the transition paint layer being greater than or equal to a sixth preset threshold value.

That is, the plurality of coating layers sequentially includes: the paint comprises a primer layer, a first colored paint layer, a protective paint layer, a second colored paint layer, a transition paint layer, a second electroplated layer and a finish paint layer. Wherein the hollow structure penetrates through the finish paint layer, the second electroplated layer, the transition paint layer and the second colored paint layer.

Therefore, the casing that this application embodiment provided through set up transition lacquer layer between second colour lacquer layer and second electroplated layer, can increase the surface smoothness of second colour lacquer layer, and the electroplating of being convenient for has strengthened the cohesion between second colour lacquer layer and the second electroplated layer, has improved the wholeness ability of coating.

Alternatively, the transition layer may be multilayered.

Optionally, the plurality of coating layers further comprises a middle paint layer disposed between the second electroplated layer and the top paint layer, the transparency of the middle paint layer being greater than or equal to a seventh preset threshold value.

In one possible implementation, the plurality of coatings comprises, in order: the paint comprises a primer layer, a first colored paint layer, a protective paint layer, a second colored paint layer, a second electroplated layer, a middle paint layer and a finish paint layer.

In another possible implementation, the plurality of coatings comprises, in order: the paint comprises a primer layer, a first colored paint layer, a protective paint layer, a second colored paint layer, a transition paint layer, a second electroplated layer, a middle paint layer and a finish paint layer.

Therefore, the casing that this application embodiment provided through set up the middle coat layer between second plating layer and finish coat layer, can increase the adhesion between second plating layer and the finish coat layer to increase the cohesion between these two coatings, improved the wholeness ability of coating.

Alternatively, the intermediate paint layer 120 may be multilayered.

Optionally, the plurality of coating layers further comprises a second electroplated layer disposed between the first colored paint layer and the second colored paint layer.

In one possible implementation, the second electroplated layer is arranged between the first pigmented paint layer and the protective paint layer.

That is, the plurality of coatings sequentially includes: the paint comprises a primer layer, a first colored paint layer, a second electroplated layer, a protective paint layer, a second colored paint layer and a finish paint layer.

Therefore, according to the shell provided by the embodiment of the application, the second electroplated layer is arranged between the first colored paint layer and the protective paint layer, the overall metal texture of the shell can be improved, and the second electroplated layer is close to the protective paint layer, so that the metal texture of the local area of the shell, which is presented through the hollow structure, is stronger, and the effect of presenting the metal texture with hierarchy is achieved.

Based on the above possible implementation manner, optionally, the plurality of coating layers further include a transition paint layer disposed between the first colored paint layer and the second electroplated layer.

Therefore, the shell provided by the embodiment of the application can increase the surface smoothness of the first colored paint layer by arranging the transition paint layer between the first colored paint layer and the second electroplated layer, is convenient to electroplate, enhances the binding force between the first colored paint layer and the second electroplated layer, and improves the overall performance of the coating.

In another possible implementation, the second electroplated layer is disposed on the protective coating and the second electroplated layer, and the hollow structure penetrates from the topcoat layer to the second electroplated layer.

Therefore, the shell provided by the embodiment of the application can improve the metal texture of the shell by arranging the second electroplated layer between the protective paint layer and the second colored paint layer, and can enable the whole shell to present better metal texture due to the fact that the second electroplated layer is close to the finish paint layer.

Optionally, the plurality of coating layers further comprises a second electroplated layer disposed between the primer layer and the first pigmented paint layer.

Therefore, according to the shell provided by the embodiment of the application, the second electroplated layer is arranged between the primer layer and the first colored paint layer, so that the overall metal texture of the shell can be improved. And because the second electroplated layer is close to the protective paint layer, the metal feeling of the local area of the shell body presented by the hollow structure is stronger, and the effect of presenting the metal texture with hierarchy is achieved.

In addition, in the case where the substrate includes the texture region, and neither the first colored paint layer nor the primer layer is non-transparent, the texture region can be made to exhibit a strong highlight texture.

Optionally, the color of the material of the first pigmented paint layer and the color of the material of the second pigmented paint layer are different.

Therefore, the casing that this application embodiment provided, through hollow structure, can demonstrate the colour of the coating (for example, first look lacquer layer) below the protection lacquer layer, the region except that hollow structure can demonstrate the colour of second look lacquer layer in the casing for the casing can demonstrate the colour of two kinds of different look lacquers on the whole, has reached the integrative effect of colour separation on a casing, has improved the colour scope that the casing can demonstrate greatly, has satisfied user demand, has improved user experience.

Optionally, the pattern formed by the hollow structure is square.

Optionally, the hollow structure is formed based on a laser etching technique.

Optionally, the material of the substrate is a composite material.

Optionally, the composite material is fiberglass.

Optionally, the material of the top coat layer is a matt paint.

Therefore, the shell that this application embodiment provided selects the material of inferior light lacquer as finish paint layer, can make the shell present the inferior light effect, promptly, presents an elegant quality, holds the soft color experience of holding.

Optionally, the material of the protective lacquer layer is a gloss lacquer.

Therefore, the shell that this application embodiment provided selects the material of bright lacquer as the protective paint layer, can be so that the glossiness of the protective paint layer 114 that appears through hollow structure is better for the shell can demonstrate a full bright-coloured, the color that fullness is high is experienced.

It should be noted that, under the condition that the material of the finish paint layer is the matte paint and the material of the protective paint layer is the bright paint, the gloss of the protective paint layer presented by penetrating through the hollow structure is better, so that the part of the protective paint layer can present the bright effect, therefore, the matte effect of the finish paint layer and the bright effect of the protective paint layer can present the bright effect and the matte effect simultaneously, and the effect of the sub-integration of brightness is achieved.

In a second aspect, a terminal device is provided, where the terminal device includes the housing in any one of the possible implementation manners of the first aspect.

In a third aspect, a method for manufacturing a housing is provided, where the housing includes a substrate, and the method includes:

spraying a primer on the substrate to form a primer layer;

spraying a first colored paint on the primer layer to form a first colored paint layer;

spraying a protective paint on the first colored paint layer to form a protective paint layer, wherein the transparency of the protective paint layer is greater than or equal to a first preset threshold value;

spraying a second colored paint on the protective paint layer to form a second colored paint layer, wherein the material of the second colored paint is different from that of the first colored paint;

spraying finish paint on the second paint layer to form a finish paint layer;

and carrying out laser carving treatment on local areas of the finish paint layer and the second color paint layer to form a hollow structure penetrating from the finish paint layer to the second color paint layer.

Therefore, the manufacturing method of the shell provided by the embodiment of the application, the base material of the shell is sequentially coated with the primer layer, the first colored paint layer, the protective paint layer, the second colored paint layer and the surface paint layer through the spraying technology, the material of the first colored paint layer is different from that of the second colored paint layer, the transparency of the protective paint layer is greater than or equal to the first preset threshold value, and the hollow structure penetrating from the surface paint layer to the second colored paint layer is formed through the laser engraving technology, so that the shell has obvious subareas through the hollow structure, the first colored paint layer and the second colored paint layer, a layering sense can be well presented, the user demand is met, and the user experience is improved.

In addition, because first colored paint layer and second colored paint layer are sprayed in the different positions of casing, the quantity and the material of the coating on two colored paint layers all can be different, like this, no matter whether the colour of the material of two colored paint layers is the same, light passes through the casing, to a certain extent, can demonstrate different colours at first colored paint layer and second colored paint layer, namely, the colour of the casing that shows through hollow structure is different with the colour that the region except that hollow structure shows in the casing, can make the casing wholly can demonstrate the colour of two kinds of different colored paints, reached the integrative effect of colour separation on a casing, the colour scope that the casing can demonstrate has been improved.

Optionally, electroplating is performed on one side, close to the primer layer, of the texture region by adopting a thin plating mode to form a first electroplating layer, and the transparency of the first electroplating layer is greater than or equal to a fourth preset threshold value.

Optionally, the texture of the textured area is square in shape.

Optionally, spraying a topcoat over the second layer of paint to form a topcoat layer, comprising:

and performing electroplating treatment on the second colored paint layer in a thin plating mode to form a second electroplated layer, wherein the transparency of the second electroplated layer is greater than or equal to a fifth preset threshold value.

Spraying finish paint on the second electroplated layer to form the finish paint layer; and the number of the first and second groups,

the local area to finish paint layer with the second colour paint layer is done radium and is carved and handled, includes:

and carrying out laser engraving treatment on the local areas of the finish paint layer, the second electroplated layer and the second colored paint layer to form the hollow structure.

Optionally, the electroplating treatment on the second paint layer to form a second electroplated layer comprises:

spraying a transition paint on the second color paint layer to form the transition paint layer, wherein the transparency of the transition paint layer is greater than or equal to a sixth preset threshold value;

electroplating the transition paint layer by adopting a thin plating mode to form a second electroplated layer; and the number of the first and second groups,

the local area of the finish paint layer, the second electroplated layer and the second colored paint layer is subjected to laser etching treatment, and the laser etching treatment method comprises the following steps:

and carrying out laser etching treatment on the local areas of the finish paint layer, the second electroplated layer, the transition paint layer and the second colored paint layer to form the hollow structure.

Optionally, the spraying a finish paint on the second electroplated layer to form the finish paint layer comprises:

spraying a middle paint on the second electroplated layer to form a middle paint layer, wherein the transparency of the middle paint layer is greater than or equal to a seventh preset threshold value;

spraying finish paint on the intermediate paint layer to generate a finish paint layer; and the number of the first and second groups,

and carrying out laser etching treatment on local areas of the finish paint layer, the middle paint layer, the second electroplated layer and the second colored paint layer to form the hollow structure.

Optionally, spraying a protective paint on the first colored paint layer to form a protective paint layer, comprising:

electroplating the first colored paint layer by adopting a thin plating mode to form a second electroplated layer;

and spraying protective paint on the second electroplated layer to form a protective paint layer.

Optionally, the electroplating treatment on the first colored paint layer to form a second electroplated layer includes:

spraying a transition paint on the first colored paint layer to form a transition paint layer;

and electroplating the transition paint layer in a thin plating mode to form the second electroplated layer.

Optionally, said spraying a first colored paint on said primer layer, with said first colored paint layer, comprises:

electroplating treatment is carried out on the primer layer in a thin plating mode to form a second electroplated layer;

and spraying a first colored paint on the second electroplated layer to form the first colored paint layer.

Optionally, spraying a second pigmented paint over the protective paint layer to form a second pigmented paint layer, comprising:

electroplating the protective primer layer by adopting a thin plating mode to form a second electroplated layer;

spraying a second colored paint on the second electroplated layer to form the second colored paint layer; and the number of the first and second groups,

and carrying out laser engraving treatment on the partial areas of the finish paint layer, the second colored paint layer and the second electroplated layer so as to form a hollow structure penetrating from the finish paint layer to the second electroplated layer.

Optionally, the pattern formed by the hollow structure is square.

Optionally, the hollow structure is formed based on a laser etching technique.

Optionally, the material of the substrate is a composite material.

Optionally, the composite material is fiberglass.

Optionally, the material of the top coat layer is a matt paint.

Optionally, the material of the protective lacquer layer is a gloss lacquer.

Drawings

Fig. 1 is a schematic structural diagram of a mobile phone provided in an embodiment of the present application

Fig. 2 is a cross-sectional view of the housing of the embodiment of the present application in the xz plane.

Fig. 3 is a schematic diagram of a pattern formed in the xy plane by the hollow structure of the housing of the embodiment of the present application.

Fig. 4 is a schematic structural view of a substrate in the xy plane of the examples of the present application.

Fig. 5 is a cross-sectional view of the housing of an embodiment of the present application in the xz plane.

FIG. 6 is a cross-sectional view of a substrate in the xz plane of an example of the present application.

Fig. 7 to 14 are cross-sectional views of the housing of the embodiment of the present application in the xz plane.

Fig. 15 to 23 are schematic flow charts of a manufacturing method of the housing according to the embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The embodiment of the application provides a shell, which can be applied to any terminal equipment, such as: tablet computers, mobile phones, electronic readers, remote controllers, Personal Computers (PCs), notebook computers, in-vehicle devices, network televisions, wearable devices, and the like.

Fig. 1 is a schematic structural diagram of a mobile phone 100 according to an embodiment of the present disclosure, where the mobile phone 100 is an example of a terminal device, and the mobile phone 100 includes a housing 110, where the housing 110 is located on a back surface of the mobile phone 100. The x, y, and z directions are perpendicular to each other, the x direction may be understood as a width direction of the mobile phone 100, the y direction may be understood as a length direction of the mobile phone 100, and the z direction may be understood as a thickness direction of the mobile phone 100. The coordinate system shown in fig. 1 can be applied to all drawings of the embodiments of the present application.

For the sake of understanding, first, a brief description will be made of the laser etching technique and the non-conductive vacuum plating (NCVM) technique related to the embodiments of the present application.

Laser carving

Laser engraving, also called laser engraving or laser marking, is a process for carrying out surface treatment by adopting an optical principle, and is used for printing characters or engraving patterns on products.

The principle of laser etching is that a high-intensity focused laser beam emitted by a laser is utilized at a focus to oxidize a material, so that the material is processed; the marking effect is to expose the deep substance by the evaporation of the surface substance, or to obtain the trace by the chemical and physical change of the surface substance caused by the light energy, or to 'carve' the trace by burning the surface substance by the light energy, thereby showing the pattern and the character which need to be etched.

In the embodiment of the application, partial coating of the shell can be removed through the laser etching technology, so that the lower coating can be leaked out, and different effects can be presented.

NCVM technology

The NCVM technology is also called discontinuous coating technology or non-conductive plating technology, and refers to a technology in which a metal material is organically converted by chemical or physical means under vacuum conditions to convert the metal into particles, and the particles are deposited or adsorbed on the surface of a plastic material to form a film, i.e., a so-called coating film.

The NCVM technology is applicable to all plastic products requiring surface treatment, especially to 3C products with signal transmission and reception, especially in the vicinity of antenna covers, such as mobile phones, Global Positioning System (GPS) satellite navigation, bluetooth headsets, etc.

The plastic product obtained by the NCVM technology has metal texture and cannot influence the transmission effect of wireless communication. On one hand, the metal material is adopted in the NCVM technology, so that the appearance of the product has metal texture; on the other hand, since the NCVM technology can realize non-conductivity, it can satisfy the normal use of wireless communication products, for example, when the mobile phone or bluetooth headset receives or transmits signals, the generated electromagnetic field is not accumulated by the conductive coating, so as not to affect the radio frequency performance and electrostatic discharge performance of the mobile phone.

The NCVM technology includes a thin plating technology, which can make the product have a metal texture and at the same time can also realize semi-transparency control, that is, the metal texture is embodied and at the same time has light penetrability, or the transparency of the product obtained by the NCVM technology is not non-transparent, for example, it can be transparent or semi-transparent, wherein the transparency indicates the degree of light penetration of the object, and can be expressed by a transmittance. Therefore, by utilizing the light-transmitting or semi-light-transmitting characteristic, the design of the product can be more varied, and the appearance is more beautiful and colorful. The plating layer of the embodiments of the present application may be generated by a thin plating technique.

In this embodiment, the object is transparent, which may indicate that the transmittance of the object is greater than a threshold value, and most of the light may pass through the object, for example, the threshold value may be 95%, so that the internal structure of the object can be seen more clearly visually through the object. The object is translucent, which means that the transmittance of the object is within a range of values, for example, 30% to 80%, through which some of the light can pass, and the internal structure of the object can be visually seen through the object, but this is not very effective. An object that is non-transparent may indicate that the transmittance of the object is less than a threshold value, which is, for example, 10%, and that light is substantially not transmitted through the object and that the internal structure of the object is substantially not visible through the object.

Hereinafter, for convenience of description, the housing 110 of the mobile phone 100 is taken as an example, and the housing of the embodiment of the present application is described in detail with reference to fig. 2 to 14. It should be understood that the housing of the embodiment of the present application may be applied to any other terminal device, and the embodiment of the present application should not be limited thereto.

Fig. 2 is a schematic structural view of a housing according to an embodiment of the present application. As shown in fig. 2, the housing 110 includes:

the coating comprises a base material 111, a hollow structure 117 and a plurality of coatings coated on the base material 111, wherein the plurality of coatings sequentially comprise from inside to outside along the thickness direction of the base material 111 on one side of the base material 111: a primer layer 112, a first pigmented paint layer 113, a protective paint layer 114, a second pigmented paint layer 115 and a topcoat layer 116, the hollow structures 117 penetrating from the topcoat layer 116 to the second pigmented paint layer 115, the transparency of the protective paint layer 114 being greater than or equal to a first predetermined threshold value, the material of the first pigmented paint layer 115 being different from the material of the second pigmented paint layer 116.

Here, the thickness direction of the substrate 111 is a z direction shown in fig. 2, that is, a plurality of coating layers applied to the substrate 111 in the z direction include a primer layer 112, a first colored paint layer 113, a protective paint layer 114, a second colored paint layer 115, and a topcoat layer 116 in this order from one side of the substrate 111.

Alternatively, the hollow structures may be created by a laser engraving technique, in which the second paint layer 115 and a partial region of the topcoat layer 116 are removed by a laser engraving process to form hollow structures 117, so that the first paint layer 115 can be represented through the hollow structures 117.

As an example and not by way of limitation, the hollow structure may also be generated by a shielding spraying method, and in the design, after the protective paint layer is sprayed, a shielding jig may be attached to a local area of the protective paint layer for isolation, a second paint layer and a surface paint layer may be normally made in the rest area of the protective paint layer, and after all the protective paint layers are sprayed, the shielding jig may be removed, so that the hollow structure may also be formed.

The projection of the pattern formed by the hollow structure 117 on the surface of the substrate 111 may be in various shapes, for example, a shape such as a five-pointed star, a cross, a diamond, or a square as shown in fig. 3, and the embodiment of the present invention is not limited in any way. Here, the surface of the substrate 111 is perpendicular to the thickness direction of the substrate, and is parallel to the xy plane shown in fig. 2.

Alternatively, the hollow structure 117 may be a structure filled with a material having high transparency (for example, a transparent material), and is not limited to the hollow structure being completely hollow, as long as the following coating can be presented through the hollow structure 117. Hereinafter, each coating layer will be described in detail.

Primer layer 112

The primer layer 112 is coated on top of the substrate 111 to increase the adhesion between the substrate 111 and the first colored paint layer 113.

First pigmented paint layer 113

The first colored paint layer 113 is coated on the upper surface of the primer layer 112, and the first colored paint layer 113 is obtained by spraying a first colored paint on the primer layer 112.

In the embodiment of the present application, the transparency of the first colored paint layer 113 can be flexibly set according to actual requirements.

Optionally, the transparency of the first pigmented paint layer 113 is greater than or equal to a second predetermined threshold, such that the color of the underlying coating (e.g., primer layer 112) may be exhibited by the first pigmented paint layer 113,

for example, the transparency of the first colored paint layer 113 may be transparent or translucent. For example, the first pigmented paint layer may be a semi-transparent red color, either appearing red or having the underlying coating visible.

Optionally, the transparency of the first pigmented paint layer 113 is less than or equal to a second predetermined threshold value, so that most of the color exhibited by the first pigmented paint layer 113 is the color of the first pigmented paint layer 113, only a small portion of the color of the underlying coating is exhibited, ideally, only the color of the first pigmented paint layer 113 is exhibited, and the color of the underlying coating is not exhibited, in which case the first pigmented paint layer 113 is non-transparent.

Protective paint layer 114

The protective lacquer layer 114 is applied on top of the first coloured lacquer layer 113 with the purpose of: first, the primary purpose of the first colored paint layer 113 is to present an appearance color, have a relatively thin thickness, and have a relatively weak ability to use performance, for example, the user has poor performance in handling various friction and scratch, which easily causes the colored paint to be worn away, or easily scratches the colored paint to cause scratch, which all result in poor performance of the first colored paint layer 113, and the protective paint layer 114 can improve the performance of the first colored paint layer 113 to protect the first colored paint layer 113; second, because the uv color assistant is added to the protective paint, it can be ensured that the protective paint layer 114 is not removed during the coating process, so that during the subsequent laser engraving process for the coatings (e.g., the topcoat layer 116 and the second color paint layer 115) coated on the protective paint layer 114 during the shell manufacturing process, the protective paint layer 114 can control the engraving depth of the laser engraving, so that the coatings can only be engraved on the protective paint layer 114, and the protective paint layer 114 and the coatings below are not engraved as much as possible.

Wherein the transparency of the protective paint layer 114 is greater than or equal to a first predetermined threshold value, such that the color of the underlying coating layer (e.g., the first pigmented paint layer 113) may be exhibited through the protective paint layer 114, e.g., the transparency of the protective paint layer 114 may be transparent or translucent. In addition, in the case where the primer layer 112 and the first colored paint layer 113 have a good transparency (for example, the transparency is translucent or transparent), the color or structure of the substrate can also be expressed through the protective paint layer 114, the first colored paint layer 113, and the primer layer 112.

It should be noted that the preset threshold value (first preset threshold value) related to the transparency of the protective paint layer 114 and the preset threshold value (second preset threshold value) related to the transparency of the first colored paint layer 113 may be the same value or different values, or the first preset threshold value and the second preset threshold value may be the same value or different values, and are not limited herein. The following description of the preset threshold value related to the transparency of the coating is related, and the explanation of the preset threshold value related to the transparency of different coatings is the same here, that is, the preset threshold values related to different coatings may be the same value or different values, and will not be described in detail later.

Alternatively, the material of the protective lacquer layer 114 may be an ultraviolet light curing (UV) lacquer. The UV paint is also called as photo-initiation paint, and the photo-curing paint is automatically coated on the surface of a furniture board by roller and drenched by machine equipment, promotes the initiator to decompose under the irradiation of ultraviolet light, generates free radicals, initiates resin reaction, and instantly cures to form a film, and has the advantages that: good hardness, high transparency, excellent yellowing resistance and environmental protection.

Alternatively, the material of the protective lacquer layer 114 may be a gloss lacquer. Thus, the gloss of the protective paint layer 114 presented through the hollow structure 117 is better, so that the shell can present a full, vivid, high fullness color experience.

In the present embodiment, various graphics or logo graphics may be applied to the protective paint layer 114 for aesthetic or identification purposes, for example, logo of the company designing the housing. In one design, after forming the hollow structure 117, ink may be sprayed on the protective lacquer layer 114 to form a graphic or logo.

Second paint layer 115

The second colored paint layer 115 is coated on top of the protective paint layer 114, and the second colored paint layer 115 is obtained by spraying the second colored paint on the protective paint layer 114.

Generally, the second paint layer 115 is provided to satisfy the visual requirement of the user for multiple colors, and thus, the transparency of the second paint layer 115 is not non-transparent and may be translucent or non-transparent, so that the housing may more prominently present the color of the second paint layer 115.

Of course, the second basecoat layer 115 may be opaque in the ideal case.

Topcoat layer 116

A topcoat layer 116 is applied over the second basecoat layer 115 and is the last of the plurality of layers and is obtained by spraying a topcoat over the second basecoat layer 115.

The topcoat has good resistance to external conditions and can protect the second basecoat layer 115 as well as the underlying coatings. Typically, the transparency of the topcoat layer 116 is not non-transparent, and may be, for example, transparent or translucent, and the color of the second basecoat layer 115 may be developed through the topcoat layer to meet the needs of the user, while the underlying coating may be protected.

The material of the topcoat layer 116 can be flexibly selected based on actual requirements.

Alternatively, the material of the topcoat layer 116 may be a matte paint. Like this, can make the casing present the sub-light effect, promptly, present an elegant quality, hold the soft color experience of holding. In addition, under the condition that the material of protection lacquer layer 114 is the bright lacquer, because the glossiness that sees through protection lacquer layer 114 that hollow structure 117 appears is better for the position of protection lacquer layer can present bright light effect, demonstrates a full bright-colored, the high color of fullness is experienced promptly, consequently, the sub-gloss effect of finish lacquer layer and the bright light effect of protection lacquer layer make a casing can present bright light effect and sub-gloss effect simultaneously, has reached the effect of bright sub-unity.

Alternatively, the material of the top coat layer 116 may be a varnish. Like this, opposite with the effect of inferior gloss lacquer, can make the casing present a full bright-coloured, full high color experience.

In addition to the above-mentioned housing, in order to better present two colors simultaneously on the same housing, optionally, the color of the material of the first colored paint layer 113 and the color of the material of the second colored paint layer 115 are different.

Like this, see through hollow structure, can demonstrate the colour of the coating (for example, first colored paint layer) below the protection lacquer layer, the region except that hollow structure can demonstrate the colour of second colored paint layer in the casing for the casing can demonstrate the colour of two kinds of different colored paints on the whole, has reached the integrative effect of colour separation on a casing, has improved the colour scope that the casing can demonstrate greatly, has satisfied user demand, has improved user experience.

In the embodiment, the material of the substrate 111 may be common Polycarbonate (PC) plastic, or may be a composite material.

The composite material is composed of two or more materials with different properties, and the materials with new performance are composed macroscopically (microscopically) by a physical or chemical method. The materials mutually make up for the deficiencies in performance to generate a synergistic effect, so that the comprehensive performance of the composite material is superior to that of the original composition material to meet various different requirements.

Thus, by using the composite material as the material of the base material, the size of the housing can be effectively reduced under the condition of satisfying the same performance of the housing, so that the size of the terminal device can be reduced, and the composite material is very suitable for the scene with the limitation on the structure size of the terminal device.

Alternatively, the composite material of the substrate 111 may be a composite fiber, which has better fiber strength and better reinforcement performance.

Alternatively, the composite fibers may be glass fibers.

In the embodiment, when the substrate 111 is a composite material, the material of the primer layer 112 may be polyvinyl chloride (PVC) resin, so that the primer layer 112 may be better bonded to the substrate 111 using the composite fiber, and the bonding force may be enhanced.

In the embodiment of the present application, regardless of the material of the substrate, in order to achieve the aesthetic effect, exemplarily, referring to fig. 4 and 5, optionally, the transparency of the first colored paint layer 113 is greater than or equal to the second preset threshold, the transparency of the primer layer 112 is greater than or equal to the third preset threshold, and the substrate 111 may include a non-texture region 111-1 and a texture region 111-2, wherein a projection of the pattern formed by the hollow structures 117 on the surface of the substrate 111 at least partially coincides with a projection of the texture region 111-2 on the surface of the substrate 111, and the surface of the substrate 111 is perpendicular to the thickness direction of the substrate 111.

Here, the transparency of the first pigmented paint layer 113 is greater than or equal to a second preset threshold value and the transparency of the primer layer 112 is greater than or equal to a third preset threshold value, meaning that neither of the two layers is non-transparent.

The shape of the texture region 111-2 may be designed in different forms according to design requirements, for example, the shape of the texture region 111-2 may be the shape shown in fig. 4, wherein the texture in the texture region 111-2 shown in the left drawing of fig. 4 is a cross texture, and the texture of the texture region 111-2 shown in the right drawing of fig. 4 may be a square texture. It should be understood that the texture in the texture area shown in fig. 4 is only a schematic illustration, for example, the texture of the texture area 111-2 may also be a diamond, cross or star-shaped texture similar to that shown in fig. 3, or may also be a texture of any other shape, and the embodiment of the present application is not limited in any way.

The projection (denoted as projection 1) of the pattern formed by the hollow structure 117 on the surface of the substrate 111 and the projection (denoted as projection 2) of the texture region 111-2 on the surface of the substrate 111 are at least partially overlapped with each other, and it is indicated that the projection 1 and the projection 2 may be partially overlapped or completely overlapped with each other. Referring to fig. 5, in the upper two views of fig. 5, projection 1 and projection 2 partially coincide, and in the third view of fig. 5, projection 1 and projection 2 completely coincide.

In this way, under the condition that neither the first colored paint layer nor the primer layer is non-transparent, the texture area of the substrate can be presented through the hollow structure, the transparency of the area except the hollow structure in the shell is very small, and the non-texture area except the texture area in the substrate is rarely or basically not presented, so that on one hand, the aesthetic property of the shell is improved, and on the other hand, the effect of integrating transparency and non-transparency on one shell is achieved.

In the above embodiment, the base material is coated with the primer layer and the first colored paint layer, although both of the coating layers are not opaque, and the effect of the texture region actually appearing through the hollow structure is not very good, and therefore, in order to highlight the texture region, optionally, as shown in fig. 6, the side of the texture region 111-2 adjacent to the primer layer 111 is coated with the first plating layer 111-3, the transparency of the first plating layer 111-3 is greater than or equal to a fourth preset threshold, and the thickness of the first plating layer is less than or equal to 1 μm.

Therefore, the brightness and the reflectivity of the texture area are increased by coating the electroplated layer (for example, the first electroplated layer) on the texture area of the base material, the texture area of the base material can be better presented through the hollow structure, particularly, the texture area of the base material can be better presented under the condition that more coatings are arranged on the base material, and the user experience is better improved.

If the material of the substrate 111 is composite fibers and the composite fibers include a textured region and a non-textured region, the non-textured region 111-1 and the textured region 111-2 can be bonded together by glue filling to achieve seamless and stepless connection of the two regions.

By way of example and not limitation, since the composite fiber itself contains resin, the molding process needs to be completed under certain temperature and certain pressure conditions, the resin will flow and resolidify into solid in the process, if the step difference (or height difference) between the textured region 111-2 and the non-textured region 111-1 is small, for example, less than 10 μm, the two regions can be directly combined in a seamless manner by molding, and the two regions can be combined without glue filling.

Alternatively, the material of the textured region 111-2 and the material of the non-textured region 111-1 may be the same or different, and are not limited herein.

If the substrate 111 is made of ordinary PC plastic, the substrate 111 may be partially formed or post-processed with textures, and the substrate 111 may be subjected to glue filling or the like to flatten the surface of the substrate 111, so as to obtain a substrate having texture areas and non-texture areas.

The housing shown in the above embodiment can present a layered feeling, can present colors of two kinds of colored paints, and can also present a texture area of the substrate, or the housing can realize the effects of the layered feeling, the color separation and the transparent and opaque integration, but the metallic texture of the housing is weak, which relatively affects the appearance design, therefore, in order to improve the metallic texture of the housing, a plating layer can be added in the housing, for the convenience of distinction, the plating layer in the coating is the second plating layer, and the thickness of the second plating layer is less than or equal to 1 micron.

The embodiment of the present application provides 4 types of cases, which have different plating layer positions and exhibit slightly different effects based on the positions of the plating layers in the cases, and each case will be described in detail with reference to fig. 7 to 14.

First one

Referring to fig. 7, optionally, the plurality of coating layers further comprises a second electroplated layer 118 disposed between the second basecoat layer 115 and the topcoat layer 116, the transparency of the second electroplated layer 118 being greater than or equal to a fifth predetermined threshold.

That is, among the plurality of coating layers of the case shown in fig. 7, the plurality of coating layers sequentially include, from the inside to the outside along the z direction: a primer layer 112, a first pigmented paint layer 113, a protective paint layer 114, a second pigmented paint layer 115, a second electroplated layer 118, and a topcoat layer 116. Wherein the hollow structures 117 still penetrate from the top coat layer 116 to the second color coat layer 115, in the case shown in fig. 7 the hollow structures 117 penetrate the top coat layer 116, the second electroplated layer 118 and the second color coat layer 115.

Like this, through set up the second electroplated layer between second colored paint layer and finish paint layer, can improve the metal feel of casing to, because the second electroplated layer is close to finish paint layer, can be so that whole casing can present better metal feel.

In the case shown in fig. 7, the surface of the second color paint layer 115 may not be flat against the electroplating, so that the bonding force between the second color paint layer 115 and the second electroplated layer 118 is not so good, and therefore, in order to facilitate the electroplating, referring to fig. 8, optionally the plurality of coating layers further comprises a transition paint layer 119 disposed between the second color paint layer 115 and the second electroplated layer 118, the transparency of the transition paint layer being greater than or equal to a sixth preset threshold value.

That is, among the plurality of coating layers of the case shown in fig. 8, the plurality of coating layers sequentially include, from the inside to the outside along the z direction: a primer layer 112, a first pigmented paint layer 113, a protective paint layer 114, a second pigmented paint layer 115, a transitional paint layer 119, a second electroplated layer 118, and a topcoat layer 116. In this case, the hollow structures 117 still extend through from the top coat layer 116 to the second color coat layer 115, and in the case shown in fig. 8, the hollow structures 117 extend through the top coat layer 116, the second electroplated layer 118, the transition coat layer 119 and the second color coat layer 115.

Alternatively, the transition layer 119 may be multilayered.

Like this, through set up the transition lacquer layer between second colour lacquer layer and second electroplated layer, can increase the surface smoothness of second colour lacquer layer, the electroplating of being convenient for has strengthened the cohesion between second colour lacquer layer and the second electroplated layer, has improved the wholeness ability of coating.

In the case shown in fig. 7 or 8, the bonding property between the second electroplated layer 118 and the topcoat layer 116 may not be very good, and in order to increase the bonding force of the two layers, referring to fig. 9 and 10, optionally, the plurality of layers further includes a primer layer 120 disposed between the second electroplated layer 118 and the topcoat layer 116, the transparency of the primer layer 120 being greater than or equal to a seventh preset threshold value.

Alternatively, the intermediate paint layer 120 may be multilayered.

Fig. 9 shows a shell with a middle lacquer layer 120 added to the shell shown in fig. 7, i.e. in the plurality of coating layers of the shell shown in fig. 9, the plurality of coating layers comprises, in order from the inside to the outside along the z-direction: a primer layer 112, a first pigmented paint layer 113, a protective paint layer 114, a second pigmented paint layer 115, a second electroplated layer 118, a basecoat layer 120, and a topcoat layer 116.

The shell shown in fig. 10 is a shell in which a middle paint layer 120 is added to the shell shown in fig. 8, that is, in the plurality of coating layers of the shell shown in fig. 10, the plurality of coating layers sequentially include, from inside to outside along the z direction: a primer layer 112, a first pigmented paint layer 113, a protective paint layer 114, a second pigmented paint layer 115, a transitional paint layer 119, a second electroplated layer 118, a basecoat layer 120, and a topcoat layer 116.

Like this, through set up the middle coat layer between second plating layer and finish coat layer, can increase the adhesive force between second plating layer and the finish coat layer to increase the cohesion between these two coatings, improved the wholeness ability of coating.

Second kind

Referring to fig. 11, optionally, the plurality of coating layers further includes a second electroplated layer 118 disposed between the first pigmented paint layer 113 and the protective paint layer 114.

That is, among the plurality of coating layers of the case shown in fig. 11, the plurality of coating layers sequentially include, from the inside to the outside along the z direction: a primer layer 112, a first pigmented paint layer 113, a second electroplated layer 118, a protective paint layer 114, a second pigmented paint layer 115, and a topcoat paint layer 116. Wherein the hollow structures 117 still penetrate from the top coat layer 116 to the second color coat layer 115.

Therefore, the second electroplated layer is arranged between the first colored paint layer and the protective paint layer, the overall metal texture of the shell can be improved, and the second electroplated layer is close to the protective paint layer, so that the metal texture of the local area of the shell, which is shown by the hollow structure, is stronger, and the effect of showing the metal texture with hierarchy is achieved.

Optionally, the transparency of second electroplated layer 118 is greater than or equal to a fifth predetermined threshold.

That is, the second plating layer 118 is not opaque and may be transparent or translucent, so that not only the metallic texture of a partial region of the case may be improved, but also a coating layer under the second plating layer 118, particularly a color of the first colored paint layer 113, may be presented through the hollow structure.

In the case shown in fig. 11, the surface of the first colored paint layer 113 may not be flat against plating, so that the bonding between the first colored paint layer 113 and the second plating layer 118 is not good, and thus, in order to facilitate plating, referring to fig. 12, the plurality of coating layers may optionally further include a transition paint layer 119 disposed between the first colored paint layer 113 and the second plating layer 118.

That is, among the plurality of coating layers of the case shown in fig. 12, the plurality of coating layers sequentially include, from inside to outside, in the z direction: a primer layer 112, a first pigmented paint layer 113, a transitional paint layer 119, a second electroplated layer 118, a protective paint layer 114, a second pigmented paint layer 115, and a topcoat paint layer 116. Wherein the hollow structures 117 still penetrate from the top coat layer 116 to the second color coat layer 115.

Alternatively, the transition layer 119 may include multiple layers.

Like this, through set up the transition lacquer layer between first colored lacquer layer and second electroplated layer, can increase the surface smoothness of first colored lacquer layer, the electroplating of being convenient for has strengthened the cohesion between first colored lacquer layer and the second electroplated layer, has improved the wholeness ability of coating.

Optionally, the transparency of the transition lacquer layer 119 is greater than or equal to a sixth preset threshold.

That is, the transition paint layer 119 is not opaque and may be transparent or translucent so that, in the case where the second electroplated layer 118 is not opaque, the coating underlying the second electroplated layer 118 and the transition paint layer 116, and particularly the color of the first pigmented paint layer 113, may be exhibited through the hollow structure.

Third kind

Referring to fig. 13, the plurality of coating layers further includes a second electroplated layer 118 disposed between the primer layer 112 and the first pigmented paint layer 113.

That is, among the plurality of coating layers of the case shown in fig. 13, the plurality of coating layers sequentially include, from the inside to the outside along the z direction: a primer layer 112, a second electroplated layer 118, a first pigmented paint layer 113, a protective paint layer 114, a second pigmented paint layer 115, and a topcoat paint layer 116. Wherein the hollow structures 117 still penetrate from the top coat layer 116 to the second color coat layer 115.

In this way, the second plating layer is provided between the primer layer and the first colored paint layer, so that the metal texture of the whole shell can be improved. And because the second electroplated layer is close to the protective paint layer, the metal feeling of the local area of the shell body presented by the hollow structure is stronger, and the effect of presenting the metal texture with hierarchy is achieved.

Optionally, the transparency of second electroplated layer 118 is greater than or equal to a fifth predetermined threshold. Thus, not only the metallic texture of the local area of the housing can be improved, but also the coating under the second electroplated layer 118, especially the color of the first colored paint layer 113, can be presented through the hollow structure.

Fourth type

Referring to fig. 14, the plurality of coating layers further includes a second electroplated layer 118 disposed between the protective coating layer 114 and the second basecoat layer 115, wherein the hollow structure 117 penetrates from the topcoat layer 116 to the second electroplated layer 118.

That is, among the plurality of coating layers of the case shown in fig. 14, the plurality of coating layers sequentially include, from the inside to the outside along the z direction: a primer layer 112, a first pigmented paint layer 113, a protective paint layer 114, a second electroplated layer 118, a second pigmented paint layer 115, and a topcoat paint layer 116. Wherein the hollow structures 117 run through from the topcoat layer 116 to the second electroplated layer, in the housing of fig. 14 the hollow structures run through the topcoat layer 116, the second basecoat layer 115 and the second electroplated layer 118.

Thus, the second electroplated layer is arranged between the protective paint layer and the second colored paint layer, so that the metal texture of the shell can be improved, and the whole shell can present better metal texture due to the fact that the second electroplated layer is close to the finish paint layer.

As described above in detail with reference to fig. 7 to 14, the case with the second plating layer added thereto is described, and among the 4 cases, the first case and the fourth case can be preferably applied to a scene where the metallic texture of the entire case is required to be strong, and the metallic texture of the first case is stronger than the metallic texture of the fourth case because the second plating layer of the first case is closer to the finish paint layer. The second shell and the third shell can be well suitable for scenes requiring that the shells can present certain metal texture but do not need strong metal texture, and can be well suitable for scenes requiring that local areas of the shells present high metal texture, and the second electroplated layer of the second shell is closer to the protective paint layer, so that the metal texture presented by the local areas of the second shell is stronger than the metal texture presented by the local areas of the third shell. In practical designs, the selection of different housings may be determined based on the actual circumstances (e.g., user requirements).

The housing according to the embodiment of the present invention is described in detail above with reference to fig. 2 to 14, and the method for manufacturing the housing according to the embodiment of the present invention is described in detail below with reference to fig. 2 to 14 and fig. 15 to 23.

Fig. 15 is a schematic flow chart of a manufacturing method of the housing according to the embodiment of the present application. Each step is explained in detail with reference to fig. 15, 2 to 6.

S210, spraying a primer on the substrate 111 to form a primer layer 112.

Alternatively, the material of the substrate 111 may be a common Polycarbonate (PC) plastic, or may be a composite material.

Alternatively, the composite material of the substrate 111 may be a composite fiber. The composite fiber has better fiber strength and better reinforcing performance.

Alternatively, the composite fibers may be glass fibers.

In the embodiment, when the substrate 111 is a composite material, the material of the primer layer 112 may be PVC resin, so that the primer layer 112 may be better bonded to the substrate 111 using the composite fiber, enhancing the bonding force.

S220, spraying a first colored paint on the primer layer 112 to form a first colored paint layer 113.

In this step, the transparency of the first colored paint layer 113 can be flexibly set according to actual requirements. For example, during the spraying process, the transparency of the first pigmented paint layer 113 may be controlled by controlling the thickness of the first pigmented paint layer 113 and/or selecting a first pigmented paint that meets the desired transparency.

In one case, the transparency of the first pigmented paint layer 113 is optionally greater than or equal to a second predetermined threshold value, such that the color of the underlying coating (e.g., primer layer 112) may be rendered through the first pigmented paint layer 113. In another case, optionally, the transparency of the first pigmented paint layer 113 is less than or equal to a second preset threshold value, so that most of the color exhibited by the first pigmented paint layer 113 is the color of the first pigmented paint layer 113, only a minor part of the color of the underlying coating is exhibited, ideally, only the color of the first pigmented paint layer 113 is exhibited, and the color of the underlying coating is not exhibited, in which case the first pigmented paint layer 113 is non-transparent.

For the detailed description of the first colored paint layer 113, reference may be made to the above description, and the description thereof is omitted.

S230, spraying a protective paint on the first colored paint layer 113 to form a protective paint layer 114, wherein the transparency of the protective paint layer 114 is greater than or equal to a first preset threshold.

In general, the protective paint layer has no color requirement, and can be sprayed by adopting a material with higher transparency, so that the material meeting the requirement of higher transparency can be selected as the protective paint, and the thickness of the protective paint layer can be not limited under the condition of meeting the size of the shell. Alternatively, the material of the protective lacquer layer 114 may be a UV lacquer.

For a detailed description of the protective lacquer layer 114, reference may be made to the above description, which is not repeated.

And S240, spraying a second colored paint on the protective paint layer 114 to form a second colored paint layer 115, wherein the material of the second colored paint is different from that of the first colored paint.

In this step, a second colored paint different from the first colored paint is selected and sprayed on the protective paint layer 114 to finally form a second colored paint layer 115.

For a detailed description of the second color paint layer 115, reference may be made to the above description, and the description thereof is omitted.

And S250, spraying finishing paint on the second paint layer 115 to form a finishing paint layer 116.

Alternatively, the material of the topcoat layer 116 may be a matte paint. Like this, can make the casing present the sub-light effect, promptly, present an elegant quality, hold the soft color experience of holding. In addition, under the condition that the material of protection lacquer layer 114 is the bright lacquer, because the glossiness that sees through protection lacquer layer 114 that hollow structure appears is better for the position on protection lacquer layer can present the bright light effect, demonstrates a full bright-colored, the high color of fullness is experienced promptly, consequently, the sub-gloss effect of finish lacquer layer and the bright light effect of protection lacquer layer make a casing can present bright light effect and sub-gloss effect simultaneously, has reached the effect of bright sub-unity.

For the detailed description of the topcoat layer 116, reference may be made to the above description, and the description is not repeated.

S260, performing laser etching on the partial areas of the topcoat layer 116 and the second topcoat layer 115 to form a hollow structure 117 penetrating from the topcoat layer 116 to the second topcoat layer 115.

In this step, a predetermined partial region is laser engraved from the top coat layer 116 until the partial regions of the top coat layer 116 and the second color coat layer 115 are coated to form a hollow structure 117 penetrating the top coat layer 116 and the second color coat layer 115.

In order to better present both colors simultaneously on the same housing, optionally the color of the material of the first colored paint layer 113 and the color of the material of the second colored paint layer 115 are different.

In order to achieve an aesthetic effect, referring to fig. 4 and 5, optionally, the transparency of the first colored paint layer 113 is greater than or equal to a second predetermined threshold value, the transparency of the primer layer 112 is greater than or equal to a third predetermined threshold value, and the substrate 111 may include a non-textured region 111-1 and a textured region 111-2, wherein a projection of the pattern formed by the hollow structures 117 on the surface of the substrate 111 at least partially coincides with a projection of the textured region 111-2 on the surface of the substrate 111, the surface of the substrate 111 being perpendicular to the thickness direction of the substrate 111.

If the substrate 111 is a composite fiber material, the non-textured region 111-1 and the textured region 111-2 can be bonded together by glue filling to achieve seamless and stepless connection between the two regions. Of course, if the height difference between the textured region 111-2 and the non-textured region 111-1 is small, the two regions may be combined without glue filling, and the two regions may be combined by the properties of the composite material itself. The texture region 111-2 of the substrate 111 may be directly woven during the process of manufacturing the composite material.

Here, for specific description of the textured region and the non-textured region of the substrate, and specific description that the projection of the pattern formed by the hollow structure 117 on the surface of the substrate 111 and the projection of the textured region 111-2 on the surface of the substrate 111 at least partially coincide with each other, reference may be made to the above description, and no further description is given.

To highlight the textured area of the substrate, optionally, the method further comprises:

electroplating is carried out on one side, close to the primer layer 112, of the texture region 111-2 by adopting a thin plating mode to form a first electroplated layer 111-3, and the transparency of the first electroplated layer 111-3 is greater than or equal to a fourth preset threshold value.

Therefore, the transparency of the first electroplated layer generated in the thin plating mode is greater than or equal to the fourth preset threshold, the transparency is better, the brightness and the reflectivity of the texture area are increased, particularly, the texture area of the base material can be better presented under the condition that more coatings are arranged on the base material, the texture area of the base material can be better presented through the hollow structure, and the user experience is better improved.

In the above embodiments, in order to improve the metal texture of the housing, a plating layer (referred to as a second plating layer) may be added to the housing. Next, a method for manufacturing a case according to an embodiment of the present invention will be further described with reference to fig. 16 to 23 and fig. 7 to 14 based on a difference in the order of the steps of adding the second plating layer.

Referring to fig. 16 and 7, in step S250, step S250 may include step S251 and step S252, wherein,

and S251, performing electroplating treatment on the second colored paint layer 115 by adopting a thin plating mode to form a second electroplated layer 118, wherein the transparency of the second electroplated layer 118 is greater than or equal to a fifth preset threshold value.

S252, spraying finish paint on the second electroplated layer 118 to form a finish paint layer 116; and the number of the first and second groups,

the corresponding step S260 specifically includes:

and S261, performing laser etching treatment on the local areas of the topcoat layer 116, the second electroplated layer 118 and the second topcoat layer 115 to form the hollow structure 117.

In this embodiment, the housing obtained based on the steps of fig. 16 may correspond to the housing shown in fig. 7. For the detailed description of the remaining steps, reference may be made to the above description, which is not repeated herein.

Therefore, the second electroplated layer is obtained by electroplating treatment on the second colored paint layer, and the finish paint is sprayed on the second electroplated layer to form the finish paint layer, so that the metal texture of the shell can be improved, and the whole shell can present better metal texture due to the fact that the second electroplated layer is close to the finish paint layer.

Referring to fig. 17 and 8, in step S251, step S251 may include step S2511 and step S2512, wherein,

s2511, spraying a transition paint on the second color paint layer 115 to form a transition paint layer 119, where the transparency of the transition paint layer 119 is greater than or equal to a sixth preset threshold;

s2522, performing electroplating treatment on the transition paint layer 119 in a thin-plating mode to form a second electroplated layer 118; and the number of the first and second groups,

step S262 specifically includes:

a laser engraving process is performed on a local area of the topcoat layer 115, the second electroplated layer 118, the transition lacquer layer 119 and the second topcoat layer 115 to form a hollow structure 117.

In this embodiment, the housing obtained based on the step of fig. 17 may correspond to the housing shown in fig. 8. For the detailed description of the remaining steps, reference may be made to the above description, which is not repeated herein.

Like this, through the spraying transition lacquer in order to form the transition lacquer layer on second colour lacquer layer 115 to, do electroplating process and obtain the second plating layer on the transition lacquer layer, can increase the surface smoothness of second colour lacquer layer, the electroplating of being convenient for has strengthened the cohesion between second colour lacquer layer and the second plating layer, has improved the wholeness ability of coating.

Referring to fig. 18 and 9, in step S252, step S252 may include step S2521 and step S2522, wherein,

s2521, spraying a middle paint on the second electroplated layer 118 to form a middle paint layer 120, wherein the transparency of the middle paint layer 120 is greater than or equal to a seventh preset threshold;

s2522, spraying finish paint on the intermediate paint layer 120 to generate a finish paint layer 116; and the number of the first and second groups,

step S263 specifically includes:

a laser engraving process is performed on a local area of the topcoat layer 116, the basecoat layer 120, the second plating layer 118 and the second topcoat layer 115 to form a hollow structure 117.

In this embodiment, the housing obtained based on the step of fig. 18 may correspond to the housing shown in fig. 9. For the detailed description of the remaining steps, reference may be made to the above description, which is not repeated herein.

Referring to fig. 19 and 10, in step S252, step S252 may include step S2521 and step S2522, wherein,

step S264 specifically includes:

a laser engraving process is performed on a local area of the topcoat layer 116, the intermediate lacquer layer 120, the second electroplated layer 118, the transition layer 119 and the second lacquer layer 115 to form a hollow structure 117.

In this embodiment, the housing obtained based on the step of fig. 19 may correspond to the housing shown in fig. 10. For the detailed description of the remaining steps, reference may be made to the above description, which is not repeated herein.

Thus, the intermediate paint layer is formed by spraying the intermediate paint on the second electroplated layer, and the finish paint is sprayed on the intermediate paint layer, so that the adhesive force between the second electroplated layer and the finish paint layer can be increased, the bonding force between the two coatings is increased, and the overall performance of the coating is improved.

Referring to fig. 20 and 11, in step S230, step S230 includes steps S231 and S232, wherein,

s231, performing electroplating treatment on the first colored paint layer 113 by adopting a thin plating mode to form a second electroplated layer 118;

and S232, spraying protective paint on the second electroplated layer 118 to form a protective paint layer 114.

In this embodiment, the housing obtained based on the step of fig. 20 may correspond to the housing shown in fig. 11. For the detailed description of the remaining steps, reference may be made to the above description, which is not repeated herein.

Therefore, the second electroplated layer is obtained by electroplating treatment on the first colored paint layer, and the protective paint is sprayed on the second electroplated layer to form the protective paint layer, so that the overall metal texture of the shell can be improved.

Referring to fig. 21 and 12, in step S231, step S231 includes steps S2311 and S2312, wherein,

s2311, spraying a transition paint on the first colored paint layer 113 to form a transition paint layer 119;

s2322, electroplating treatment is carried out on the transition paint layer 119 in a thin plating mode to form a second electroplated layer 118.

In this embodiment, the housing obtained based on the step of fig. 21 may correspond to the housing shown in fig. 12. For the detailed description of the remaining steps, reference may be made to the above description, which is not repeated herein. Like this, through the spraying transition lacquer in order to form transition lacquer layer on first coloured lacquer layer to, do electroplating process and obtain the second plating layer on transition lacquer layer, can increase the surface smoothness of first coloured lacquer layer, the electroplating of being convenient for has strengthened the cohesion between first coloured lacquer layer and the second plating layer, has improved the wholeness ability of coating.

Referring to fig. 22 and 13, in step S220, step S220 includes steps S221 and S222, wherein,

s221, performing electroplating treatment on the primer layer 112 by adopting a thin plating mode to form a second electroplating layer 118;

s222, spraying a first color paint on the second electroplated layer 118 to form a first color paint layer 113.

In this embodiment, the housing obtained based on the step of fig. 22 may correspond to the housing shown in fig. 13. For the detailed description of the remaining steps, reference may be made to the above description, which is not repeated herein.

Thus, the second electroplated layer is obtained by electroplating treatment on the primer layer, and the first colored paint is sprayed on the second electroplated layer to form the first colored paint layer, so that the overall metal texture of the shell can be improved. And because the second electroplated layer is close to the protective paint layer, the metal feeling of the local area of the shell body presented by the hollow structure is stronger, and the effect of presenting the metal texture with hierarchy is achieved.

Referring to fig. 23 and 14, in step S240, step S240 includes steps S241 and S242, wherein,

s241, performing electroplating treatment on the protective primer layer 114 by adopting a thin plating mode to form a second electroplating layer 118;

s242, spraying a second colored paint on the second electroplated layer 118 to form a second colored paint layer 115; and the number of the first and second groups,

step S265 specifically is:

a partial region of the topcoat layer 116, the second basecoat layer 115, and the second electroplated layer 118 is laser engraved to form a hollow structure penetrating from the topcoat layer 116 to the second electroplated layer 118.

In this embodiment, the housing obtained based on the step of fig. 23 may correspond to the housing shown in fig. 14. For the detailed description of the remaining steps, reference may be made to the above description, which is not repeated herein.

Therefore, the second electroplated layer is obtained by electroplating treatment on the protective primer, and the second colored paint is sprayed on the second electroplated layer to form the second colored paint layer, so that the metal texture of the shell can be improved, and the whole shell can present better metal texture due to the fact that the second electroplated layer is close to the finish paint layer.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A housing, characterized in that the housing comprises:

2. The housing according to claim 1, characterized in that the transparency of the first pigmented paint layer is greater than or equal to a second preset threshold value, the transparency of the primer layer is greater than or equal to a third preset threshold value,

3. The housing of claim 2 wherein a side of the textured area adjacent the primer layer is coated with a first electroplated layer having a transparency greater than or equal to a fourth predetermined threshold.

4. A housing according to claim 2 or 3, wherein the texture of the textured area is square in shape.

5. The housing of any one of claims 1 to 4, the plurality of coatings further comprising a second electroplated layer disposed between the second basecoat layer and the topcoat layer, the second electroplated layer having a transparency greater than or equal to a fifth predetermined threshold.

6. The housing of claim 5, wherein the plurality of coating layers further comprises a transitional paint layer disposed between the second paint layer and the second electroplated layer, the transitional paint layer having a transparency greater than or equal to a sixth predetermined threshold.

7. The housing of claim 5 or 6, wherein the plurality of coating layers further comprises a midcoat layer disposed between the second electroplated layer and the topcoat layer, the transparency of the midcoat layer being greater than or equal to a seventh preset threshold.

8. The housing of any of claims 1-4, wherein the plurality of coating layers further comprises a second electroplated layer disposed between the first pigmented paint layer and the second pigmented paint layer.

9. The housing of claim 8 wherein the second electroplated layer is disposed between the first pigmented paint layer and the protective paint layer.

10. The housing of claim 9, wherein the plurality of coatings further comprises a transitional paint layer disposed between the first pigmented paint layer and the second electroplated layer.

11. The housing according to any one of claims 1 to 10, characterized in that the color of the material of the first pigmented paint layer and the color of the material of the second pigmented paint layer are different.

12. The housing according to any one of claims 1 to 11, wherein the hollow structure forms a square shape.

13. The housing of any one of claims 1 to 12, wherein the hollow structure is formed based on a laser etching technique.

14. The housing according to any one of claims 1 to 13, wherein the material of the substrate is a composite material.

15. The housing of claim 14, wherein the composite material is fiberglass.

16. The housing according to any one of claims 1 to 15, characterized in that the material of the top coat layer is a matt paint.

17. The housing according to any one of claims 1 to 16, characterized in that the material of the protective lacquer layer is a gloss lacquer.

18. A terminal device, characterized in that it comprises a housing according to any one of claims 1 to 17.

19. A method of making a housing comprising a substrate, the method comprising:

spraying a primer on the substrate to form a primer layer;

spraying finish paint on the second paint layer to form a finish paint layer;

20. The method according to claim 19, characterized in that the transparency of the first pigmented paint layer is greater than or equal to a second preset threshold value, the transparency of the primer layer is greater than or equal to a third preset threshold value,

21. The method of claim 20, further comprising:

and electroplating on one side, close to the primer layer, of the texture region by adopting a thin plating mode to form a first electroplated layer, wherein the transparency of the first electroplated layer is greater than or equal to a fourth preset threshold value.

22. The method of claim 20 or 21, wherein the texture of the textured area is square in shape.

23. The method of any one of claims 19 to 22, the spraying a topcoat over the second basecoat layer to form a topcoat layer, comprising:

24. The method of claim 23, wherein said applying a plating process to said second layer of paint to form a second plated layer comprises:

25. The method of claim 23 or 24, wherein said spraying a topcoat over said second electroplated layer to form said topcoat layer comprises:

26. The method of any one of claims 19 to 22, wherein spraying a protective paint over the first pigmented paint layer to form a protective paint layer comprises:

27. The method of claim 26, wherein said applying a plating process to said first pigmented paint layer to form a second electroplated layer comprises:

28. The method according to any one of claims 19 to 27, characterized in that the color of the material of the first pigmented paint layer and the color of the material of the second pigmented paint layer are different.

29. The method of any one of claims 19 to 28, wherein the pattern formed by the hollow structure is square.

30. The method of any one of claims 19 to 29, wherein the hollow structure is formed based on a laser etching technique.

31. The method of any one of claims 19 to 30, wherein the material of the substrate is a composite material.

32. The method of claim 31, wherein the composite material is fiberglass.

33. The method of any one of claims 19 to 32, wherein the material of the topcoat layer is a matte paint.

34. The method according to any one of claims 19 to 33, characterized in that the material of the protective lacquer layer is a gloss lacquer.