WO2020168962A1

WO2020168962A1 - Housing, terminal equipment, and manufacturing method for housing

Info

Publication number: WO2020168962A1
Application number: PCT/CN2020/074982
Authority: WO
Inventors: 谭景标; 胡文垒
Original assignee: 华为技术有限公司
Priority date: 2019-02-22
Filing date: 2020-02-13
Publication date: 2020-08-27
Also published as: CN111615274A

Abstract

Provided are a housing, terminal equipment, and a manufacturing method for the housing. According to the housing, a base material of the housing is sequentially coated with a primer layer, a first colored paint layer, a protective paint layer, a second colored paint layer and a finishing paint layer, wherein the material of the first colored paint layer is different from the material of the second colored paint layer; the transparency of the protective paint layer is greater than or equal to a first preset threshold value; and the housing further comprises a hollow structure penetrating from the finishing paint layer to the second colored paint layer, such that by means of the hollow structure, the first colored paint layer and the second colored paint layer, the housing has obvious partitions, thereby being able to present layering well, meeting user demands and improving the user experience.

Description

Shell, terminal equipment and manufacturing method of shell

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office of China, the application number is 201910134040.8, and the invention title is "Shell, Terminal Equipment, and Method for Making Shell" on February 22, 2019. The reference is incorporated in this application.

Technical field

This application relates to the field of electronic equipment, and more specifically, to a housing, a terminal device, and a manufacturing method of the housing.

Background technique

With the continuous advancement of production technology, users have continuously improved the appearance performance and aesthetic requirements of the housing of electronic products, and the requirements for appearance colors, materials and processes are becoming more and more diversified, and they are constantly pursuing differentiated appearances. For example, the appearance of the product is required to have a sense of hierarchy, but the housing of the electronic product obtained by the current spraying technology cannot present a better sense of hierarchy, and the style is relatively single, which is difficult to meet the needs of users.

Summary of the invention

The present application provides a new casing. By arranging two color paint layers and a hollow structure in the casing, the casing can present a better sense of hierarchy and improve user experience.

In a first aspect, a housing is provided, characterized in that the housing includes:

The substrate, the hollow structure and the multiple coatings coated on the substrate, wherein

On one side of the substrate, along the thickness direction of the substrate, the plurality of coating layers in turn include: a primer layer, a first colored paint layer, a protective paint layer, a second colored paint layer, and a top paint Layer, the hollow structure penetrates from the top paint layer to the second color paint layer, the transparency of the protective paint layer is greater than or equal to a first preset threshold, the material of the first color paint layer and the The material of the second color paint layer is different.

Among them, the material of the first color paint layer 115 and the material of the second color paint layer 116 are different, which can mean that the materials of the two color paint layers are different, or it can mean that the colors of the two color paint layers are different, which is not done here. limited.

Therefore, in the case provided by the embodiment of the present application, the substrate of the case is sequentially coated with a primer layer, a first color paint layer, a protective paint layer, a second color paint layer and a top paint layer, and the first color paint layer The material of the paint layer is different from the material of the second color paint layer, the transparency of the protective paint layer is greater than or equal to the first preset threshold, and the shell also includes a hollow structure that penetrates from the top paint layer to the second color paint layer, so that through The hollow structure, the first color lacquer layer and the second color lacquer layer make the shell have more obvious partitions, can well present a sense of hierarchy, meet user needs, and improve user experience.

In addition, since the first color paint layer and the second color paint layer are arranged at different positions of the shell, the number and materials of the coatings coated on the two color paint layers may be different. In this way, regardless of the two color paint layers Whether the color of the material is the same, the light penetrates the shell, to a certain extent, the first color paint layer and the second color paint layer can show different colors, that is, the color of the shell and the The color of the area other than the hollow structure in the shell is different, so that the shell can show the colors of two different color paints as a whole. The effect of color separation is achieved on one shell, and the shell can be improved. The range of colors presented.

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

The substrate includes a textured area and a non-textured area, wherein the projection of the pattern formed by the hollow structure on the surface of the substrate and the projection of the textured area on the surface of the substrate at least partially overlap, the The surface of the substrate is perpendicular to the thickness direction of the substrate.

Therefore, the shell provided by the embodiment of the present application, in the case that the first color paint layer and the primer layer are not opaque, can show the texture area of the substrate through the hollow structure, except for the hollow structure in the shell The transparency of the area is very small, and there is little or almost no non-textured area in the substrate except the textured area. On the one hand, it improves the aesthetics of the shell. On the other hand, it achieves transparency and opacity on a shell. One effect.

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

Therefore, in the case provided by the embodiments of the present application, by coating a layer of electroplating layer (for example, the first electroplating layer) on the textured area of the substrate, the brightness and reflectivity of the textured area are increased, and the hollow structure can be more improved. The texture area of the substrate can be presented well, especially when there are more coatings on the substrate, the texture area of the substrate can be presented well, and the user experience is better improved.

Optionally, the shape of the texture of the texture area is a square.

Optionally, the material of the textured area and the material of the non-textured area may be the same or different, which is not limited here.

Optionally, the multiple coating layers further include a second electroplating layer disposed between the second color paint layer and the topcoat layer, and the transparency of the second electroplating layer is greater than or equal to the fifth preset Threshold.

That is to say, the multiple coatings sequentially include: a primer layer, a first color paint layer, a protective paint layer, a second color paint layer, a second electroplating layer, and a top paint layer. Wherein, the hollow structure penetrates the top paint layer, the second electroplating layer and the second color paint layer.

Therefore, in the case provided by the embodiments of the present application, by providing the second electroplating layer between the second color paint layer and the top paint layer, the metallic texture of the case can be improved, and since the second electroplating layer is close to the top paint layer, It can make the whole shell present a better metal texture.

Optionally, the multiple coatings further include a transition paint layer disposed between the second color paint layer and the second electroplating layer, and the transparency of the transition paint layer is greater than or equal to a sixth preset threshold .

That is to say, the multiple coatings sequentially include: a primer layer, a first color paint layer, a protective paint layer, a second color paint layer, a transition paint layer, a second electroplating layer and a top paint layer. Wherein, the hollow structure penetrates the top paint layer, the second electroplating layer, the transition paint layer and the second color paint layer.

Therefore, the housing provided by the embodiments of the present application, by providing a transition paint layer between the second color paint layer and the second electroplating layer, can increase the surface flatness of the second color paint layer, facilitate electroplating, and enhance the second color The bonding force between the paint layer and the second electroplated layer improves the overall performance of the coating.

Alternatively, the transition layer may be multilayered.

Optionally, the multiple coatings further include a middle paint layer arranged between the second electroplating layer and the top paint layer, and the transparency of the middle paint layer is greater than or equal to a seventh preset threshold.

In a possible implementation manner, the multiple coatings sequentially include: a primer layer, a first color paint layer, a protective paint layer, a second color paint layer, a second electroplating layer, a middle paint layer, and a top paint layer.

In another possible implementation manner, the multiple coatings in turn include: a primer layer, a first color paint layer, a protective paint layer, a second color paint layer, a transition paint layer, a second electroplating layer, and a middle paint layer And topcoat.

Therefore, the shell provided by the embodiment of the application can increase the adhesion between the second electroplating layer and the top paint layer by providing the middle paint layer between the second electroplating layer and the top paint layer to increase the adhesion between the two coating layers. The bonding force between the layers improves the overall performance of the coating.

Optionally, the middle paint layer 120 may be multi-layered.

Optionally, the multiple coating layers further include a second electroplating layer disposed between the first colored paint layer and the second colored paint layer.

In a possible implementation manner, the second electroplating layer is disposed between the first colored paint layer and the protective paint layer.

That is to say, the multiple coatings sequentially include: a primer layer, a first color paint layer, a second electroplating layer, a protective paint layer, a second color paint layer, and a top paint layer.

Therefore, in the case provided by the embodiments of the present application, the second electroplating layer is provided between the first color paint layer and the protective paint layer, which can improve the overall metallic texture of the case, and, since the second electroplating layer is close to the protective paint layer , It can make the metal feel of the partial area of the shell presented through the hollow structure stronger, and achieve the effect of presenting a layered metal texture.

Based on the foregoing possible implementation manners, optionally, the multiple coating layers further include a transition paint layer disposed between the first color paint layer and the second electroplating layer.

Therefore, in the case provided by the embodiment of the present application, by providing a transition paint layer between the first color paint layer and the second electroplating layer, the surface flatness of the first color paint layer can be increased, which facilitates electroplating and enhances the first color paint layer. The bonding force between the paint layer and the second electroplated layer improves the overall performance of the coating.

In another possible implementation manner, the second electroplating layer is provided on the protective coating and the second electroplating layer, and the hollow structure penetrates from the top paint layer to the second electroplating layer.

Therefore, in the case provided by the embodiments of the present application, by providing the second electroplating layer between the protective paint layer and the second color paint layer, the metallic texture of the case can be improved, and since the second electroplating layer is close to the top paint layer, It can make the whole shell present a better metal texture.

Optionally, the plurality of coating layers further include a second electroplating layer disposed between the primer layer and the first color paint layer.

Therefore, in the case provided by the embodiment of the present application, the metal texture of the whole case can be improved by providing the second electroplating layer between the primer layer and the first color paint layer. In addition, since the second electroplating layer is close to the protective paint layer, the metallic feeling of the partial area of the shell presented through the hollow structure can be made stronger, achieving the effect of showing a layered metallic texture.

In addition, when the substrate includes a textured area, and the first color paint layer and the primer layer are not opaque, the textured area can be made to have a stronger high-brightness texture.

Optionally, the color of the material of the first color paint layer is different from the color of the material of the second color paint layer.

Therefore, the casing provided by the embodiments of the present application can show the color of the coating (for example, the first color paint layer) under the protective paint layer through the hollow structure, and the area of the casing except the hollow structure can show The color of the second color paint layer is displayed, so that the shell can present two different colors of paint as a whole. The effect of color separation is achieved on one shell, which greatly increases the range of colors that the shell can present to meet To meet user needs and improve user experience.

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

Optionally, the hollow structure is formed based on laser engraving technology.

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

Optionally, the composite material is glass fiber.

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

Therefore, for the shell provided by the embodiments of the present application, the matt paint is selected as the material of the topcoat layer, which can make the shell exhibit a matt effect, that is, present an elegant, clean, subtle and soft color experience.

Optionally, the material of the protective paint layer is varnish.

Therefore, in the case provided by the embodiment of the present application, the gloss paint is selected as the material of the protective paint layer, which can make the protective paint layer 114 exhibited through the hollow structure have better gloss, so that the case can present a full, bright, A rich color experience.

It should be noted that when the material of the top paint layer is matt paint and the material of the protective paint layer is varnish, the gloss of the protective paint layer presented through the hollow structure is better, so that the part of the protective paint layer The gloss effect can be presented. Therefore, the matt effect of the top paint layer and the gloss effect of the protective paint layer enable one shell to present both the gloss effect and the matt effect at the same time, achieving the effect of a bright sub-integration.

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

In a third aspect, a method for manufacturing a housing is provided, the housing includes a base material, characterized in that the method includes:

Spray primer on the substrate to form a primer layer;

Spraying a first color paint on the primer layer to form a first color paint layer;

Spraying protective paint on the first color paint layer to form a protective paint layer, the transparency of the protective paint layer is greater than or equal to a first preset threshold;

Spraying a second color paint on the protective paint layer to form a second color paint layer, the material of the second color paint is different from the material of the first color paint;

Spraying a top paint on the second color paint layer to form a top paint layer;

Laser engraving is performed on the partial areas of the top paint layer and the second color paint layer to form a hollow structure penetrating from the top paint layer to the second color paint layer.

Therefore, in the manufacturing method of the shell provided by the embodiments of the present application, a primer layer, a first colored paint layer, a protective paint layer, a second colored paint layer and a top paint are sequentially coated on the substrate of the shell by spraying technology. The material of the first color paint layer and the material of the second color paint layer are different, the transparency of the protective paint layer is greater than or equal to the first preset threshold, and it is formed by laser carving technology from the top paint layer to the second color paint The hollow structure of the layer. In this way, through the hollow structure, the first color paint layer and the second color paint layer, the shell has more obvious partitions, which can well present a sense of hierarchy, which meets the needs of users and improves user experience.

In addition, since the first color paint layer and the second color paint layer are sprayed on different positions of the shell, the number and materials of the coatings on the two color paint layers may be different, so that regardless of the material of the two color paint layers Whether the color of the shell is the same, the light passes through the shell, and to a certain extent, the first color paint layer and the second color paint layer can show different colors, that is, the color of the shell and the color of the shell appearing through the hollow structure The color of the area other than the hollow structure in the body is different, so that the whole shell can show the colors of two different color paints. The effect of color separation is achieved on one shell, and the display of the shell is improved. Color range.

The substrate includes a textured area and a non-textured area, wherein the projection of the pattern formed by the hollow structure on the surface of the substrate and the projection of the textured area on the surface of the substrate at least partially overlap, so The surface of the substrate is perpendicular to the thickness direction of the substrate.

Optionally, a thin plating method is used to perform electroplating treatment on the side of the texture area close to the primer layer to form a first electroplated layer, and the transparency of the first electroplated layer is greater than or equal to a fourth preset threshold.

Optionally, the shape of the texture of the texture area is a square.

Optionally, the spraying of a top paint on the second color paint layer to form a top paint layer includes:

A thin plating method is used to perform electroplating treatment on the second color paint layer to form a second electroplating layer, and the transparency of the second electroplating layer is greater than or equal to a fifth preset threshold.

Spraying a topcoat on the second electroplating layer to form the topcoat layer; and,

The performing laser engraving treatment on the partial area of the top paint layer and the second color paint layer includes:

Laser engraving is performed on the local areas of the top paint layer, the second electroplating layer and the second color paint layer to form the hollow structure.

Optionally, the performing electroplating treatment on the second color paint layer to form a second electroplating layer includes:

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

Electroplating on the transition paint layer by thin plating to form the second electroplating layer; and,

The performing laser engraving treatment on the local area of the top paint layer, the second electroplating layer and the second color paint layer includes:

Laser engraving is performed on the local areas of the top paint layer, the second electroplating layer, the transition paint layer and the second color paint layer to form the hollow structure.

Optionally, the spraying of a top paint on the second electroplating layer to form the top paint layer includes:

Spraying a medium paint on the second electroplating layer to form a medium paint layer, and the transparency of the medium paint layer is greater than or equal to a seventh preset threshold;

Spraying a top paint on the middle paint layer to generate the top paint layer; and,

Laser engraving is performed on the local areas of the top paint layer, the middle paint layer, the second electroplating layer and the second color paint layer to form the hollow structure.

Optionally, the spraying protective paint on the first color paint layer to form a protective paint layer includes:

Electroplating on the first color paint layer by thin plating to form a second electroplating layer;

A protective paint is sprayed on the second electroplating layer to form a protective paint layer.

Optionally, the electroplating process on the first color paint layer to form a second electroplating layer includes:

Spraying transition paint on the first color paint layer to form a transition paint layer;

Electroplating is performed on the transition paint layer by a thin plating method to form the second electroplating layer.

Optionally, the spraying of a first color paint on the primer layer to use the first color paint layer includes:

Electroplating on the primer layer by thin plating to form a second electroplating layer;

Spraying a first color paint on the second electroplating layer to form the first color paint layer.

Optionally, spraying a second color paint on the protective paint layer to form the second color paint layer includes:

Electroplating is performed on the protective primer layer by thin plating to form a second electroplating layer;

Spraying a second color paint on the second electroplating layer to form the second color paint layer; and,

Laser engraving is performed on a partial area of the top paint layer, the second color paint layer and the second electroplating layer to form a hollow structure penetrating from the top paint layer to the second electroplating layer.

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

Optionally, the hollow structure is formed based on laser engraving technology.

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

Optionally, the composite material is glass fiber.

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

Optionally, the material of the protective paint layer is varnish.

Description of the drawings

Figure 1 is a schematic structural diagram of a mobile phone provided by 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 on the xy plane by the hollow structure of the housing of the embodiment of the present application.

Fig. 4 is a schematic structural diagram of the substrate in the embodiment of the present application in the xy plane.

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

Fig. 6 is a cross-sectional view of the substrate of the embodiment of the present application in the xz plane.

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

15 to 23 are schematic flowcharts of a manufacturing method of a housing according to an embodiment of the present application.

detailed description

The technical solution in this application will be described below in conjunction with the drawings.

The embodiment of the application provides a housing, which can be applied to any terminal device, such as: tablet computer, mobile phone, e-reader, remote control, personal computer (PC), notebook computer, vehicle-mounted device , Internet TV, wearable devices and other equipment.

Illustratively, FIG. 1 shows a schematic structural diagram of a mobile phone 100 provided by an embodiment of the application. The mobile phone 100 is an example of a terminal device. The mobile phone 100 includes a housing 110, which is located on the back of the mobile phone 100. Wherein, the x, y, and z directions are perpendicular to each other, the x direction can be understood as the width direction of the mobile phone 100, the y direction can be understood as the length direction of the mobile phone 100, and the z direction can be understood as the 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.

To facilitate understanding, first, a brief description of the laser engraving technology and non-conductive vacuum metallization (NCVM) technology involved in the embodiments of the present application will be given.

Laser carving

Laser engraving is also called laser engraving or laser marking. It is a surface treatment process that uses optical principles to print characters or engrave patterns on products.

The principle of laser carving: the high-intensity focused laser beam emitted by a laser is used at the focal point to oxidize the material, thereby processing the material; the effect of marking is to expose the deep material through the evaporation of the surface material, or it is caused by light energy The surface material undergoes chemical and physical changes to obtain traces, or the traces are "carved" by burning off the surface material by light energy, thereby showing the patterns and characters that need to be etched.

In the embodiment of the present application, part of the coating of the shell can be removed by the laser engraving technology to leak the underlying coating to show different effects.

NCVM technology

NCVM technology is also known as discontinuous coating technology or non-conductive electroplating technology. It refers to the organic conversion of metal materials under vacuum conditions using specific means such as chemistry and physics to convert the metal into particles, which are deposited or adsorbed on the surface of plastic materials. Forming a film, which is what we call a coating.

NCVM technology can be applied to all plastic products that require surface treatment, especially 3C products with signal transmission and reception, especially in the area near the antenna cover, such as mobile phones, global positioning system (GPS) satellite navigation, Bluetooth Headphones etc.

The plastic products obtained through NCVM technology not only have a metallic texture but also will not affect the transmission effect of wireless communication. On the one hand, because NCVM technology uses metal materials, it can make the appearance of the product have a metallic texture; on the other hand, because NCVM technology can achieve non-conductivity, it can meet the normal use of wireless communication products, such as mobile phones. Or when the Bluetooth headset receives or transmits signals, the electromagnetic field generated is not accumulated by the conductive coating, which does not affect the radio frequency performance and electrostatic discharge performance of the mobile phone.

NCVM technology includes thin plating technology, which can make the product have a metallic texture while also achieving translucent control, that is, it reflects the metallic texture and has light penetration, or in other words, products obtained through NCVM technology The transparency of is not non-transparent, for example, it can be transparent or semi-transparent, where transparency refers to the degree to which an object allows light to pass through, and can be expressed by transmittance. In this way, the use of light-transmitting or semi-transmitting properties can make the design of the product richer and more varied, and the appearance more beautiful and colorful. The electroplating layer of the embodiment of the present application may be generated by a thin plating technique.

In the embodiment of the present application, the object is transparent, which can mean that the transmittance of the object is greater than a threshold, and most light can pass through the object. For example, the threshold can be 95%, and the object can be seen clearly through the object. The internal structure. The translucent object can indicate that the transmittance of the object is within a range of values, and part of the light can pass through the object. For example, the value range can be 30%-80%. The internal structure of the object can be seen through the object visually. , However, the effect is not very good. If the object is non-transparent, it can mean that the transmittance of the object is less than a threshold, and the light cannot pass through the object basically. For example, the threshold is 10%, and the internal structure of the object is basically invisible through the object.

Hereinafter, exemplarily, for ease of description, the casing 110 of the mobile phone 100 is taken as an example, and the casing of the embodiment of the present application is described in detail with reference to FIGS. 2 to 14. It should be understood that the housing of the embodiment of the present application can be applied to any other terminal devices, and should not be limited to the embodiment of the present application.

Fig. 2 shows a schematic structural diagram of a housing according to an embodiment of the application. As shown in FIG. 2, the housing 110 includes:

The substrate 111, the hollow structure 117, and the multiple coatings coated on the substrate 111, on one side of the substrate 111, along the thickness direction of the substrate 111, the multiple coatings sequentially include from the inside to the outside: The primer layer 112, the first color paint layer 113, the protective paint layer 114, the second color paint layer 115 and the top paint layer 116, the hollow structure 117 penetrates from the top paint layer 116 to the second color paint layer 115, and the protective paint layer 114 The transparency of is greater than or equal to the first preset threshold, and the material of the first color paint layer 115 and the material of the second color paint layer 116 are different.

Here, the thickness direction of the substrate 111 is the z direction shown in FIG. 2, that is, along the z direction, starting from one side of the substrate 111, the multiple coatings applied on the substrate 111 include the bottom Paint layer 112, first color paint layer 113, protective paint layer 114, second color paint layer 115 and top paint layer 116.

Optionally, the hollow structure can be generated by laser engraving technology. In the design, the coating of the second color paint layer 115 and the top paint layer 116 is removed by laser engraving to form a hollow structure 117 to penetrate the hollow The structure 117 may exhibit the first color paint layer 115.

As an example and not a limitation, the hollow structure can also be generated by masking spraying. In the design, after the protective paint layer is sprayed, a masking jig can be attached to a local area of the protective paint layer to isolate the rest of the protective paint layer. The area is normally used as the second color paint layer and the top paint layer, and the masking fixture is removed after all spraying is completed, so that a hollow structure can also be formed.

The projection of the pattern formed by the hollow structure 117 on the surface of the substrate 111 can be of various shapes, for example, it can be a five-pointed star, a cross, a diamond, or a square as shown in FIG. 3, which is not done in the embodiment of the application. Any restrictions. Here, the surface of the substrate 111 is perpendicular to the thickness direction of the substrate and parallel to the xy plane shown in FIG. 2.

Optionally, the hollow structure 117 may also be a structure filled with a material with high transparency (for example, a transparent material), and it is not limited to the hollow structure being completely hollowed out, as long as it can show through the hollow structure 117 The following coating is sufficient. In the following, each coating is described in detail.

Primer layer 112

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

First color paint layer 113

The first color paint layer 113 is coated on the primer layer 112, and the first color paint layer 113 is obtained by spraying the first color paint on the primer layer 112.

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

Optionally, the transparency of the first colored paint layer 113 is greater than or equal to a second preset threshold, so that the color of the underlying coating (for example, the primer layer 112) can be presented through the first colored paint layer 113,

For example, the transparency of the first color paint layer 113 may be transparent or semi-transparent. For example, the color of the first color paint layer can be semi-transparent red, which can be red, and the coating underneath can also be seen.

Optionally, the transparency of the first color paint layer 113 is less than or equal to a second preset threshold, and most of the colors presented through the first color paint layer 113 are the colors of the first color paint layer 113, and only a small part of the color is displayed. The color of the lower coating layer, ideally, only presents the color of the first color paint layer 113, not the color of the lower coating layer. In this case, the first color paint layer 113 is opaque.

Protective paint 114

The protective paint layer 114 is coated on the first color paint layer 113 for the following purposes: First, the main purpose of the first color paint layer 113 is to present the appearance color, the thickness is relatively thin, and the ability to use performance is relatively weak. For example, in the process of use by the user, it is not good to deal with various frictions and scratches. It is easy to cause friction to cause the paint to be worn away, or it is easy to scratch the paint and scratches, etc., which lead to the first paint The performance of the layer 113 is not very good. The protective paint layer 114 can improve the performance of the first color paint layer 113 to protect the first color paint layer 113; secondly, because the UV light coloring aid is added to the protective paint, it can It is ensured that the protective paint layer 114 will not be removed during the coating process. Therefore, in the process of making the housing, the coating layer (for example, the top paint layer 116 and the second color paint For example, during the laser engraving process of layer 115), the protective lacquer layer 114 can control the engraving depth of the laser engraving, so that it can only be engraved to the protective lacquer layer 114, and try not to engrave to the protective lacquer layer 114 and the coating below.

Wherein, the transparency of the protective paint layer 114 is greater than or equal to the first preset threshold, so that the color of the underlying coating (for example, the first color paint layer 113) can be shown through the protective paint layer 114, for example, the protective paint layer 114 The transparency can be transparent or semi-transparent. In addition, in the case where the primer layer 112 and the first color paint layer 113 have good transparency (for example, the transparency is semi-transparent or transparent), the protective paint layer 114, the first color paint layer 113 and the primer layer can also pass through The layer 112 exhibits the color or structure of the substrate.

It should be noted that the preset threshold (first preset threshold) related to the transparency of the protective paint layer 114 and the aforementioned preset threshold (second preset threshold) related to the transparency of the first color paint layer 113 may be the same A value may also be a different value, or in other words, the first preset threshold and the second preset threshold may be the same or different, and there is no limitation here. The following is related to the description of the preset threshold of the transparency of the coating. The explanation of the preset threshold of the transparency of different coatings is the same here, that is, the preset thresholds related to different coatings can be the same value or can be Different values will not be described in detail later.

Optionally, the material of the protective lacquer layer 114 may be ultraviolet curing (UV) lacquer. UV paint is also called light-initiated paint and light-curing paint. It is automatically roll-coated and shower-coated on the furniture board through machinery and equipment. Under the irradiation of ultraviolet light, it promotes the decomposition of initiator, generates free radicals, initiates resin reaction, and instantly cures into The film has the advantages of good hardness, high transparency, excellent yellowing resistance and environmental protection.

Optionally, the material of the protective paint layer 114 may be varnish. In this way, the protective paint layer 114 presented through the hollow structure 117 has better gloss, so that the shell can present a full, bright, and high-fullness color experience.

In the embodiment of the present application, in order to achieve the effect of beauty or identification, various graphics or logos can be coated on the protective paint layer 114, for example, the logo of the company that designs the housing can be coated. In the design, after the hollow structure 117 is formed, ink can be sprayed on the protective paint layer 114 to form a graphic or logo.

Second color paint layer 115

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

In general, the second color paint layer 115 is set to meet the user's visual requirements for multiple colors. Therefore, the transparency of the second color paint layer 115 is not opaque, but can be translucent or opaque, so that The shell can show the color of the second color paint layer 115 more conspicuously.

Of course, ideally, the second color paint layer 115 may be non-transparent.

Topcoat 116

The top paint layer 116 is coated on the second color paint layer 115 and is the last coating of the multiple coatings, which is obtained by spraying the top paint on the second color paint layer 115.

The top paint has good resistance to external conditions and can protect the second color paint layer 115 and the coating below. In general, the transparency of the top paint layer 116 is not opaque, for example, it can be transparent or semi-transparent. On the basis of protecting the underlying coating, the second color paint layer can appear through the top paint layer. 115 colors to meet user needs.

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

Optionally, the material of the top paint layer 116 may be a matt paint. In this way, the shell can present a matt effect, that is, an elegant, clean, subtle and soft color experience can be presented. In addition, when the material of the protective paint layer 114 is varnish, the protective paint layer 114 exhibited through the hollow structure 117 has better gloss, so that the part of the protective paint layer can exhibit a bright effect, that is, it exhibits a gloss effect. This is a full, bright and full color experience. Therefore, the matt effect of the top paint layer and the light effect of the protective paint layer enable a shell to present both the light effect and the matte effect at the same time, achieving the effect of light and sub-integration.

Optionally, the material of the top paint layer 116 may also be a varnish. In this way, contrary to the effect of the matt paint, the shell can present a full, bright, and high-fullness color experience.

On the basis of the above shell, in order to better present two colors on the same shell at the same time, optionally, the color of the material of the first color paint layer 113 and the color of the material of the second color paint layer 115 are different .

In this way, through the hollow structure, the color of the coating (for example, the first color paint layer) under the protective lacquer layer can be presented, and the color of the second color lacquer layer can be presented in the area other than the hollow structure in the shell. The shell can present two different colors of paint as a whole, and the effect of color separation is achieved on one shell, which greatly increases the range of colors that the shell can present, meets user needs, and improves user experience.

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

Among them, the composite material is composed of two or more materials with different properties, through physical or chemical methods, macroscopically (microscopically) materials with new properties are formed. Various materials complement each other in performance and produce a synergistic effect, so that the comprehensive performance of the composite material is better than that of the original constituent materials to meet various requirements.

In this way, by using the composite material as the material of the base material, under the condition of meeting the same performance of the shell, the size of the shell can be effectively reduced to reduce the size of the terminal device, which is very suitable for the structural size of the terminal device. Scene.

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

Alternatively, the composite fiber may be glass fiber.

In the embodiment of the present application, 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 can be better compatible with those using composite fibers. The substrate 111 is bonded to enhance the bonding force.

In the embodiments of the present application, no matter what kind of material the base material is, in order to achieve an aesthetic effect, exemplarily, referring to FIGS. 4 and 5, optionally, the transparency of the first color paint layer 113 is greater than or equal to Two preset thresholds, the transparency of the primer layer 112 is greater than or equal to the third preset threshold, and the substrate 111 may include an untextured area 111-1 and a textured area 111-2, wherein the pattern formed by the hollow structure 117 is The projection of the surface of the substrate 111 and the projection of the texture region 111-2 on the surface of the substrate 111 at least partially overlap, and the surface of the substrate 111 is perpendicular to the thickness direction of the substrate 111.

Here, the transparency of the first color paint layer 113 is greater than or equal to the second preset threshold, and the transparency of the primer layer 112 is greater than or equal to the third preset threshold, which means that the two coatings are not opaque.

The shape of the texture area 111-2 can be designed in different shapes according to design requirements. For example, the shape of the texture of the texture area 111-2 may be the shape shown in FIG. 4, wherein the texture area 111 shown in the left figure of FIG. 4 The texture in -2 is a cross texture, and the texture of the texture area 111-2 shown in the figure on the right 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 it may be Other textures of any shape are not limited in the embodiment of this application.

The projection of the pattern formed by the hollow structure 117 on the surface of the substrate 111 (denoted as projection 1) and the projection of the texture area 111-2 on the surface of the substrate 111 (denoted as projection 2) at least partially overlap, which means that projection 1 And projection 2 can be partially overlapped or completely overlapped. Referring to Fig. 5, in the upper two pictures of Fig. 5, projection 1 and projection 2 partially overlap, and in the third picture of Fig. 5, projection 1 and projection 2 completely overlap.

In this way, when the first color paint layer and the primer layer are not opaque, the texture area of the substrate can be presented through the hollow structure, and the transparency of the area except the hollow structure in the shell is very small. Or there is basically no non-textured area except the textured area in the base material. On the one hand, it improves the aesthetics of the casing, and on the other hand, the integrated effect of transparency and opacity is achieved on a casing.

In the above embodiment, the base paint layer and the first color paint layer are coated on the substrate. Although the two coatings are not opaque, in fact, the effect of the texture area presented through the hollow structure is not very good. Therefore, in order to highlight the texture area, optionally, as shown in FIG. 6, the side of the texture area 111-2 close to the primer layer 111 is coated with the first electroplating layer 111-3, and the first electroplating layer 111-3 The transparency is greater than or equal to the fourth preset threshold, and the thickness of the first electroplating layer is less than or equal to 1 micron.

In this way, by coating a layer of electroplating layer (for example, the first electroplating layer) on the texture area of the substrate, the brightness and reflectivity of the texture area are increased, and the texture area of the substrate can be better presented through the hollow structure. Especially when there are more coatings on the substrate, the texture area of the substrate can be better presented, which better improves the user experience.

If the material of the base material 111 is a composite fiber and the composite fiber includes a textured area and a non-textured area, the non-textured area 111-1 and the textured area 111-2 can be combined by potting to realize the non-textured area. Seam and no-step connection.

As an example and not a limitation, since the composite fiber itself contains resin, the molding process needs to be completed under certain temperature and pressure conditions. The resin will flow and re-solidify into a solid during this process. If the textured area 111-2 and the non-textured area The level difference (or height difference) of 111-1 is very small, for example, less than 10um. The two areas can be seamlessly combined by molding directly, and the two areas can be combined without using glue.

Optionally, the material of the textured area 111-2 and the material of the non-textured area 111-1 may be the same or different, which is not limited here.

If the base material 111 is ordinary PC plastic, it can be partially formed or post-processed on the base material 111 to make the surface of the base material 111 smooth by potting, etc., so as to obtain a textured area and no texture. The base material of the area.

The housing shown in the above embodiment can present a sense of hierarchy, can present two colors of paint, and can also present a textured area of the substrate, or in other words, the housing can achieve a sense of hierarchy, color separation, and transparency. The effect of opaque integration, but the metal texture of the shell is very weak, which affects the appearance design. Therefore, in order to improve the metal texture of the shell, an electroplating layer can be added to the shell. In order to facilitate the distinction, the electroplating in the coating The layer is the second electroplating layer, and the thickness of the second electroplating layer is less than or equal to 1 micron.

Based on the position of the electroplated layer in the shell, the embodiment of the present application provides four kinds of shells. The positions of the electroplated layers of these four kinds of shells are different, and the effects presented are also slightly different. Below, in conjunction with Figures 7 to 14. Give a detailed description of each shell.

The first

Referring to FIG. 7, optionally, the plurality of coatings further include a second electroplating layer 118 disposed between the second color paint layer 115 and the topcoat layer 116, and the transparency of the second electroplating layer 118 is greater than or equal to the fifth preset Threshold.

That is to say, in the multiple coatings of the housing shown in FIG. 7, along the z direction, the multiple coatings sequentially include the primer layer 112, the first color paint layer 113, and the protective paint from the inside to the outside. Layer 114, second color paint layer 115, second electroplating layer 118 and top paint layer 116. Wherein, the hollow structure 117 still penetrates from the top paint layer 116 to the second color paint layer 115. In the housing shown in FIG. 7, the hollow structure 117 penetrates the top paint layer 116, the second electroplating layer 118, and the second color paint layer. 115.

In this way, by providing the second electroplating layer between the second color paint layer and the top paint layer, the metallic texture of the shell can be improved, and since the second electroplating layer is close to the top paint layer, the entire shell can appear more Good metal texture.

In the housing shown in FIG. 7, the surface of the second color paint layer 115 may not be flat, which is not conducive to electroplating, so that the bonding force between the second color paint layer 115 and the second electroplating layer 118 is not very good. Therefore, in order to facilitate electroplating, referring to FIG. 8, optionally, the plurality of coating layers further include a transition paint layer 119 disposed between the second color paint layer 115 and the second electroplating layer 118. The transparency of the transition paint layer is Greater than or equal to the sixth preset threshold.

That is to say, in the multiple coatings of the housing shown in FIG. 8, along the z direction, the multiple coatings sequentially include the primer layer 112, the first color paint layer 113, and the protective paint from the inside to the outside. Layer 114, second color paint layer 115, transition paint layer 119, second electroplating layer 118 and top paint layer 116. Wherein, the hollow structure 117 still penetrates from the top paint layer 116 to the second color paint layer 115. In the housing shown in FIG. 8, the hollow structure 117 penetrates the top paint layer 116, the second electroplating layer 118, the transition paint layer 119 and The second color paint layer 115.

Optionally, the transition layer 119 may be multi-layered.

In this way, by providing a transition paint layer between the second color paint layer and the second electroplating layer, the surface flatness of the second color paint layer can be increased, which facilitates electroplating, and enhances the gap between the second color paint layer and the second electroplating layer. The binding force improves the overall performance of the coating.

In the housing shown in FIG. 7 or FIG. 8, the bonding performance between the second electroplating layer 118 and the topcoat layer 116 may not be very good. In order to increase the bonding force of the two coatings, refer to FIGS. 9 and 10. Optionally, the multiple coatings further include a middle paint layer 120 disposed between the second electroplating layer 118 and the top paint layer 116, and the transparency of the middle paint layer 120 is greater than or equal to the seventh preset threshold.

Optionally, the middle paint layer 120 may be multi-layered.

Figure 9 shows a housing with a medium paint layer 120 added to the housing shown in Figure 7, that is, among the multiple coatings of the housing shown in Figure 9, along the z direction, the multiple coatings The layers include a primer layer 112, a first color paint layer 113, a protective paint layer 114, a second color paint layer 115, a second electroplating layer 118, a middle paint layer 120, and a top paint layer 116 in order from the inside to the outside.

The housing shown in FIG. 10 is a housing with a medium paint layer 120 added to the housing shown in FIG. 8, that is, in the multiple coatings of the housing shown in FIG. 10, along the z direction, the more The coatings from the inside to the outside include: primer layer 112, first color paint layer 113, protective paint layer 114, second color paint layer 115, transition paint layer 119, second electroplating layer 118, middle paint layer 120 and面paint layer 116.

In this way, by providing a middle paint layer between the second electroplating layer and the top paint layer, the adhesion between the second electroplating layer and the top paint layer can be increased to increase the bonding force between the two coatings and improve The overall performance of the coating.

The second

Referring to FIG. 11, optionally, the multiple coating layers further include a second electroplating layer 118 disposed between the first color paint layer 113 and the protective paint layer 114.

That is to say, in the multiple coatings of the housing shown in FIG. 11, along the z direction, the multiple coatings sequentially include the primer layer 112, the first color paint layer 113, and the second The electroplating layer 118, the protective paint layer 114, the second color paint layer 115 and the top paint layer 116. The hollow structure 117 still penetrates from the top paint layer 116 to the second color paint layer 115.

In this way, by providing a second electroplating layer between the first color paint layer and the protective paint layer, the overall metallic texture of the casing can be improved, and since the second electroplating layer is close to the protective paint layer, the hollow structure can be rendered The metal feel of the local area of the shell is stronger, achieving the effect of showing a layered metal texture.

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

That is to say, the second electroplating layer 118 is not opaque, but can be transparent or translucent. In this way, not only can the metal texture of the partial area of the housing be improved, but also the hollow structure can show the underside of the second electroplating layer 118 The coating, especially the color of the first color paint layer 113.

In the housing shown in FIG. 11, the surface of the first color paint layer 113 may not be flat, which is not conducive to electroplating, so that the bonding between the first color paint layer 113 and the second electroplating layer 118 is not very good. To facilitate electroplating, referring to FIG. 12, optionally, the plurality of coatings further include a transition paint layer 119 disposed between the first color paint layer 113 and the second electroplating layer 118.

That is to say, in the multiple coatings of the housing shown in FIG. 12, along the z direction, the multiple coatings sequentially include the primer layer 112, the first color paint layer 113, and the transition paint from the inside to the outside. The layer 119, the second electroplating layer 118, the protective paint layer 114, the second color paint layer 115 and the top paint layer 116. The hollow structure 117 still penetrates from the top paint layer 116 to the second color paint layer 115.

Optionally, the transition layer 119 may include multiple layers.

In this way, by providing a transition paint layer between the first color paint layer and the second electroplating layer, the surface flatness of the first color paint layer can be increased, which facilitates electroplating, and enhances the gap between the first color paint layer and the second electroplating layer. The binding force improves the overall performance of the coating.

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

That is to say, the transition paint layer 119 is not opaque, but can be transparent or translucent. In this way, when the second electroplating layer 118 is not opaque, the second electroplating layer 118 and the transition can be presented through the hollow structure. The coating under the paint layer 116 can especially exhibit the color of the first color paint layer 113.

The third

Referring to FIG. 13, the multiple coating layers further include a second electroplating layer 118 disposed between the primer layer 112 and the first color paint layer 113.

That is to say, in the multiple coatings of the housing shown in FIG. 13, along the z direction, the multiple coatings sequentially include the primer layer 112, the second electroplating layer 118, and the first color from the inside to the outside. Paint layer 113, protective paint layer 114, second color paint layer 115 and top paint layer 116. The hollow structure 117 still penetrates from the top paint layer 116 to the second color paint layer 115.

In this way, by disposing the second electroplating layer between the primer layer and the first color paint layer, the metal texture of the whole casing can be improved. In addition, since the second electroplating layer is close to the protective paint layer, the metallic feeling of the partial area of the shell presented through the hollow structure can be made stronger, achieving the effect of showing a layered metallic texture.

Optionally, the transparency of the second electroplating layer 118 is greater than or equal to a fifth preset threshold. In this way, not only the metallic texture of the partial area of the housing can be improved, but also the coating under the second electroplating layer 118 can be presented through the hollow structure, especially the color of the first color paint layer 113 can be presented.

The fourth

Referring to FIG. 14, the plurality of coatings further include a second electroplating layer 118 disposed between the protective coating 114 and the second color paint layer 115, wherein the hollow structure 117 penetrates from the top coating layer 116 to the second electroplating layer 118.

That is to say, in the multiple coatings of the housing shown in FIG. 14, along the z direction, the multiple coatings sequentially include the primer layer 112, the first color paint layer 113, and the protective paint from the inside to the outside. Layer 114, second electroplating layer 118, second color paint layer 115 and top paint layer 116. Wherein, the hollow structure 117 penetrates from the top paint layer 116 to the second electroplating layer. In the housing of FIG. 14, the hollow structure penetrates through the top paint layer 116, the second color paint layer 115 and the second electroplating layer 118.

In this way, by providing the second electroplating layer between the protective paint layer and the second color paint layer, the metallic texture of the shell can be improved, and since the second electroplating layer is close to the top paint layer, the entire shell can appear more Good metal texture.

Above, in conjunction with Figures 7 to 14, the shell with the second plating layer has been described in detail. Among the above four kinds of shells, the first shell and the fourth shell can be better suited for the entire The metal texture of the shell is very strong, and since the second electroplating layer of the first shell is closer to the finish layer, the metal texture of the first shell is better than that of the fourth shell. Strong metal texture. The second shell and the third shell can be better applied to the scenes that require the shell to show a certain metal texture but do not need a strong metal texture, and can be better applied to the part where the shell is required The area presents a scene with a higher sense of metal, and because the second plating layer of the second type of housing is closer to the protective paint layer, the local area of the second type of housing presents a metal texture than the third type of housing The metal texture is strong in the local area. In actual design, different housings can be selected based on actual conditions (for example, user requirements).

Above, the case of the embodiment of the present application has been described in detail with reference to Figs. 2 to 14. In the following, the manufacturing method of the case of the embodiment of the present application will be described in detail with reference to Figs. 2 to 14 and Figs. 15 to 23. Description.

FIG. 15 is a schematic flowchart of a manufacturing method of a housing according to an embodiment of the application. With reference to Figure 15, Figure 2 to Figure 6, each step is described in detail.

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

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

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

Alternatively, the composite fiber may be glass fiber.

In the embodiment of the present application, 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 can be better combined with the substrate 111 using composite fibers to enhance the bonding force .

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

In this step, the transparency of the first color paint layer 113 can be flexibly set according to actual requirements. For example, during the spraying process, the transparency of the first color paint layer 113 can be controlled by controlling the thickness of the first color paint layer 113 and/or selecting a first color paint meeting the required transparency for spraying.

In one case, optionally, the transparency of the first colored paint layer 113 is greater than or equal to a second preset threshold, so that the underlying coating (for example, the primer layer 112) can be presented through the first colored paint layer 113 s color. In another case, optionally, the transparency of the first color paint layer 113 is less than or equal to a second preset threshold, so that most of the colors presented through the first color paint layer 113 are those of the first color paint layer 113. The color only presents a small part of the color of the underlying coating. Ideally, it only presents the color of the first color paint layer 113, not the color of the underlying coating. In this case, the first color paint layer 113 It is non-transparent.

For the specific description of the first color paint layer 113, reference may be made to the relevant description above, and details are not repeated here.

S230: Spray a protective paint on the first color paint layer 113 to form a protective paint layer 114, the transparency of the protective paint layer 114 is greater than or equal to a first preset threshold.

Under normal circumstances, the protective paint layer has no color requirements, and materials with higher transparency can be used for spraying. Therefore, materials that meet higher transparency can be selected as the protective paint. When the size of the shell is met, the protective paint can be limited. The thickness of the layer. Optionally, the material of the protective paint layer 114 may be UV paint.

For the specific description of the protective paint layer 114, reference may be made to the relevant description above, and details are not repeated here.

S240, spraying a second color paint on the protective paint layer 114 to form a second color paint layer 115, and the material of the second color paint is different from the material of the first color paint.

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

For the specific description of the second color paint layer 115, reference may be made to the relevant description above, and details are not repeated here.

S250, spraying a top paint on the second color paint layer 115 to form the top paint layer 116.

Optionally, the material of the top paint layer 116 may be a matt paint. In this way, the shell can present a matt effect, that is, an elegant, clean, subtle and soft color experience can be presented. In addition, when the material of the protective paint layer 114 is varnish, the protective paint layer 114 exhibited through the hollow structure has better gloss, so that the part of the protective paint layer can show a bright effect, that is The color experience is full, bright and full. Therefore, the matt effect of the top paint layer and the gloss effect of the protective paint layer enable a shell to present both the gloss effect and the matt effect, achieving the effect of bright and sub-integrated.

For the specific description of the topcoat layer 116, reference may be made to the relevant description above, and details are not repeated.

S260, performing a laser engraving treatment on the partial areas of the top paint layer 116 and the second color paint layer 115 to form a hollow structure 117 penetrating from the top paint layer 116 to the second color paint layer 115.

In this step, starting from the top paint layer 116, laser engraving is performed on the pre-set partial area until the coating of the top paint layer 116 and the partial area of the second color paint layer 115 is removed to form a penetrating top paint layer 116 and the hollow structure 117 of the second color paint layer 115.

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

In order to achieve an aesthetic effect, referring to FIGS. 4 and 5, optionally, the transparency of the first color paint layer 113 is greater than or equal to a second preset threshold, and the transparency of the primer layer 112 is greater than or equal to a third preset threshold, and The substrate 111 may include a non-textured area 111-1 and a textured area 111-2, wherein the projection of the pattern formed by the hollow structure 117 on the surface of the substrate 111 and the projection of the textured area 111-2 on the surface of the substrate 111 At least partially overlapped, the surface of the substrate 111 is perpendicular to the thickness direction of the substrate 111.

If the base material 111 is a composite fiber material, the non-textured area 111-1 and the textured area 111-2 can be joined together by potting, so as to realize a seamless and no-step connection between the two areas. Of course, if the height difference between the textured area 111-2 and the untextured area 111-1 is small, the two areas can also be combined without using glue, and the two areas can be combined through the properties of the composite material itself. Among them, the texture area 111-2 of the substrate 111 can be directly woven during the process of making the composite material.

Here, the specific description of the textured area and the non-textured area of the substrate, the projection of the pattern formed by the hollow structure 117 on the surface of the substrate 111 and the projection of the textured area 111-2 on the surface of the substrate 111 at least partially overlap with each other. For the description, please refer to the relevant description above, which will not be repeated here.

In order to highlight the texture area of the substrate, optionally, the method further includes:

A thin plating method is used for electroplating on the side of the texture area 111-2 close to the primer layer 112 to form the first electroplating layer 111-3, and the transparency of the first electroplating layer 111-3 is greater than or equal to the fourth preset threshold.

In this way, the transparency of the first electroplated layer generated by the thin plating method is greater than or equal to the fourth preset threshold, which has better transparency and increases the brightness and reflectivity of the texture area, especially if there are more coatings on the substrate In this case, the texture area of the substrate can also be better presented, and the texture area of the substrate can be better presented through the hollow structure, which better improves the user experience.

In the above embodiments, in order to improve the metallic texture of the casing, an electroplating layer (denoted as the second electroplating layer) may be added to the casing. Hereinafter, based on the difference in the sequence of the steps for adding the second electroplating layer, in conjunction with FIGS. 16 to 23 and FIGS. 7 to 14, the manufacturing method of the housing of the embodiment of the present application will be further described.

Referring to FIG. 16 and FIG. 7, in step S250, step S250 may include step S251 and step S252, where,

S251, electroplating is performed on the second color paint layer 115 by thin plating to form a second electroplating layer 118, and the transparency of the second electroplating layer 118 is greater than or equal to a fifth preset threshold.

S252, spraying a top paint on the second electroplating layer 118 to form the top paint layer 116; and,

The corresponding step S260 is specifically:

In S261, the local areas of the top paint layer 116, the second electroplating layer 118 and the second color paint layer 115 are laser engraved to form a hollow structure 117.

In this embodiment, the shell obtained based on the steps in FIG. 16 may correspond to the shell shown in FIG. 7. For the specific description of the remaining steps, reference may be made to the relevant description above, which will not be repeated.

In this way, the second electroplating layer is obtained by electroplating on the second color paint layer, and the top paint is sprayed on the second electroplating layer to form the top paint layer, which can improve the metal texture of the shell, and, because the second electroplating layer is close to The finish layer can make the whole shell show a better metallic texture.

Referring to FIG. 17 and FIG. 8, in step S251, step S251 may include step S2511 and step S2512, where,

S2511, spraying transition paint on the second color paint layer 115 to form a transition paint layer 119, and the transparency of the transition paint layer 119 is greater than or equal to a sixth preset threshold;

S2522, electroplating treatment on the transition paint layer 119 by thin plating to form the second electroplating layer 118; and,

Step S262 is specifically:

The local areas of the top paint layer 115, the second electroplating layer 118, the transition paint layer 119 and the second color paint layer 115 are laser-engraved to form a hollow structure 117.

In this embodiment, the shell obtained based on the steps in FIG. 17 may correspond to the shell shown in FIG. 8. For the specific description of the remaining steps, reference may be made to the relevant description above, which will not be repeated.

In this way, by spraying the transition paint on the second color paint layer 115 to form a transition paint layer, and electroplating on the transition paint layer to obtain the second electroplating layer, the surface flatness of the second color paint layer can be increased, and the electroplating can be facilitated. Enhance the bonding force between the second color paint layer and the second electroplating layer, and improve the overall performance of the coating.

Referring to FIG. 18 and FIG. 9, in step S252, step S252 may include step S2521 and step S2522, where,

S2521, spraying a medium paint on the second electroplating layer 118 to form a medium paint layer 120, and the transparency of the medium paint layer 120 is greater than or equal to a seventh preset threshold;

S2522, spraying a top paint on the middle paint layer 120 to generate a top paint layer 116; and,

Step S263 is specifically:

The local areas of the top paint layer 116, the middle paint layer 120, the second electroplating layer 118 and the second color paint layer 115 are laser-engraved to form a hollow structure 117.

In this embodiment, the shell obtained based on the steps in FIG. 18 may correspond to the shell shown in FIG. 9. For the specific description of the remaining steps, reference may be made to the relevant description above, which will not be repeated.

Referring to Figure 19 and Figure 10, in step S252, step S252 may include step S2521 and step S2522, where,

Step S264 is specifically:

The local areas of the top paint layer 116, the middle paint layer 120, the second electroplating layer 118, the transition layer 119 and the second color paint layer 115 are laser-engraved to form a hollow structure 117.

In this embodiment, the shell obtained based on the steps in FIG. 19 may correspond to the shell shown in FIG. 10. For the specific description of the remaining steps, reference may be made to the relevant description above, which will not be repeated.

In this way, by spraying the middle paint on the second electroplating layer to form a middle paint layer, and spraying the top paint on the middle paint layer, the adhesion between the second electroplating layer and the top paint layer can be increased to increase the two coatings The bonding force between them improves the overall performance of the coating.

20 and 11, in step S230, step S230 includes steps S231 and S232, where,

S231, electroplating is performed on the first color paint layer 113 by thin plating to form the second electroplating layer 118;

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

In this embodiment, the shell obtained based on the steps in FIG. 20 may correspond to the shell shown in FIG. 11. For the specific description of the remaining steps, reference may be made to the relevant description above, which will not be repeated.

In this way, the second electroplating layer is obtained by electroplating on the first color paint layer, and the protective paint is sprayed on the second electroplating layer to form the protective paint layer, which can improve the metal texture of the whole shell, and, due to the second electroplating layer Being close to the protective paint layer can make the partial area of the shell appearing through the hollow structure more metallic, achieving the effect of showing a layered metallic texture.

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

S2311, spraying transition paint on the first color paint layer 113 to form the transition paint layer 119;

S2322, electroplating is performed on the transition paint layer 119 by thin plating to form the second electroplating layer 118.

In this embodiment, the shell obtained based on the steps in FIG. 21 may correspond to the shell shown in FIG. 12. For the specific description of the remaining steps, reference may be made to the relevant description above, which will not be repeated. In this way, by spraying the transition paint on the first color paint layer to form the transition paint layer, and electroplating on the transition paint layer to obtain the second electroplating layer, the surface flatness of the first color paint layer can be increased, which is convenient for electroplating. The bonding force between the first color paint layer and the second electroplating layer is enhanced, and the overall performance of the coating is improved.

Referring to Figs. 22 and 13, in step S220, step S220 includes steps S221 and S222, where,

S221, electroplating is performed on the primer layer 112 by a thin plating method to form a second electroplating layer 118;

S222, spraying the first color paint on the second electroplating layer 118 to form the first color paint layer 113.

In this embodiment, the shell obtained based on the steps of FIG. 22 may correspond to the shell shown in FIG. 13. For the specific description of the remaining steps, reference may be made to the relevant description above, which will not be repeated.

In this way, the second electroplated layer is obtained by electroplating on the primer layer, and the first colored paint is sprayed on the second electroplated layer to form the first colored paint layer, which can improve the metal texture of the whole shell. In addition, since the second electroplating layer is close to the protective paint layer, the metallic feeling of the partial area of the shell presented through the hollow structure can be made stronger, achieving the effect of showing a layered metallic texture.

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

S241, electroplating is performed on the protective primer layer 114 by a thin plating method to form the second electroplating layer 118;

S242, spraying a second color paint on the second electroplating layer 118 to form a second color paint layer 115; and,

Step S265 is specifically:

The partial areas of the top paint layer 116, the second color paint layer 115 and the second electroplating layer 118 are laser-engraved to form a hollow structure that penetrates from the top paint layer 116 to the second electroplating layer 118.

In this embodiment, the shell obtained based on the steps of FIG. 23 may correspond to the shell shown in FIG. 14. For the specific description of the remaining steps, reference may be made to the relevant description above, which will not be repeated.

In this way, the second electroplated layer is obtained by electroplating on the protective primer, and the second colored paint is sprayed on the second electroplated layer to form the second colored paint layer, which can improve the metal texture of the shell, and, due to the second electroplating The layer is close to the top paint layer, which can make the whole shell exhibit a better metallic texture.

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A casing, characterized in that the casing comprises:

The substrate, the hollow structure and the multiple coatings coated on the substrate, wherein

On one side of the substrate, along the thickness direction of the substrate, the plurality of coating layers in turn include: a primer layer, a first colored paint layer, a protective paint layer, a second colored paint layer, and a top paint Layer, the hollow structure penetrates from the top paint layer to the second color paint layer, the transparency of the protective paint layer is greater than or equal to a first preset threshold, the material of the first color paint layer and the The material of the second color paint layer is different.
The casing according to claim 1, wherein the transparency of the first color paint layer is greater than or equal to a second preset threshold, and the transparency of the primer layer is greater than or equal to a third preset threshold,

The substrate includes a textured area and a non-textured area, wherein the projection of the pattern formed by the hollow structure on the surface of the substrate and the projection of the textured area on the surface of the substrate at least partially overlap, the The surface of the substrate is perpendicular to the thickness direction of the substrate.
The housing according to claim 2, wherein the side of the texture area close to the primer layer is coated with a first electroplating layer, and the transparency of the first electroplating layer is greater than or equal to the fourth preset Threshold.
The casing according to claim 2 or 3, wherein the shape of the texture of the texture area is a square.
The housing according to any one of claims 1 to 4, the plurality of coatings further comprising a second electroplating layer disposed between the second color paint layer and the top paint layer, the first The transparency of the second electroplating layer is greater than or equal to the fifth preset threshold.
The housing according to claim 5, wherein the plurality of coatings further comprise a transition paint layer disposed between the second color paint layer and the second electroplating layer, the transition paint layer The transparency of is greater than or equal to the sixth preset threshold.
The housing according to claim 5 or 6, wherein the plurality of coating layers further comprise a middle paint layer disposed between the second electroplating layer and the top paint layer, the middle paint layer The transparency of is greater than or equal to the seventh preset threshold.
The casing according to any one of claims 1 to 4, wherein the plurality of coating layers further comprise a second color paint layer and a second color paint layer disposed between the first color paint layer and the second color paint layer. Plating.
The housing according to claim 8, wherein the second electroplating layer is disposed between the first color paint layer and the protective paint layer.
The casing according to claim 9, wherein the plurality of coating layers further comprise a transition paint layer disposed between the first color paint layer and the second electroplating layer.
The housing according to any one of claims 1 to 10, wherein the color of the material of the first color paint layer and the color of the material of the second color paint layer are different.
The housing according to any one of claims 1 to 11, wherein the figure formed by the hollow structure is square.
The casing according to any one of claims 1 to 12, wherein the hollow structure is formed based on laser engraving technology.
The housing according to any one of claims 1 to 13, wherein the material of the substrate is a composite material.
The housing according to claim 14, wherein the composite material is glass fiber.
The housing according to any one of claims 1 to 15, wherein the material of the top paint layer is matt paint.
The housing according to any one of claims 1 to 16, wherein the material of the protective paint layer is varnish.
A terminal device, characterized in that the terminal device comprises the casing according to any one of claims 1 to 17.
A manufacturing method of a housing, the housing including a base material, characterized in that the method includes:

Spray primer on the substrate to form a primer layer;

Spraying a first color paint on the primer layer to form a first color paint layer;

Spraying protective paint on the first color paint layer to form a protective paint layer, the transparency of the protective paint layer is greater than or equal to a first preset threshold;

Spraying a second color paint on the protective paint layer to form a second color paint layer, the material of the second color paint is different from the material of the first color paint;

Spraying a top paint on the second color paint layer to form a top paint layer;

Laser engraving is performed on the partial areas of the top paint layer and the second color paint layer to form a hollow structure penetrating from the top paint layer to the second color paint layer.
The method of claim 19, wherein the transparency of the first color paint layer is greater than or equal to a second preset threshold, and the transparency of the primer layer is greater than or equal to a third preset threshold,

The substrate includes a textured area and a non-textured area, wherein the projection of the pattern formed by the hollow structure on the surface of the substrate and the projection of the textured area on the surface of the substrate at least partially overlap, so The surface of the substrate is perpendicular to the thickness direction of the substrate.
The method of claim 20, wherein the method further comprises:

A thin plating method is used to perform electroplating treatment on the side of the texture area close to the primer layer to form a first electroplating layer, and the transparency of the first electroplating layer is greater than or equal to a fourth preset threshold.
The method according to claim 20 or 21, wherein the shape of the texture of the texture area is a square.
The method according to any one of claims 19 to 22, wherein the spraying of a top paint on the second color paint layer to form a top paint layer comprises:

A thin plating method is used to perform electroplating treatment on the second color paint layer to form a second electroplating layer, and the transparency of the second electroplating layer is greater than or equal to a fifth preset threshold.

Spraying a topcoat on the second electroplating layer to form the topcoat layer; and,

The performing laser engraving treatment on the partial area of the top paint layer and the second color paint layer includes:

Laser engraving is performed on the local areas of the top paint layer, the second electroplating layer and the second color paint layer to form the hollow structure.
The method according to claim 23, wherein the electroplating process on the second color paint layer to form a second electroplating layer comprises:

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

Electroplating on the transition paint layer by thin plating to form the second electroplating layer; and,

The performing laser engraving treatment on the local area of the top paint layer, the second electroplating layer and the second color paint layer includes:

Laser engraving is performed on the local areas of the top paint layer, the second electroplating layer, the transition paint layer and the second color paint layer to form the hollow structure.
The method according to claim 23 or 24, wherein the spraying a topcoat on the second electroplating layer to form the topcoat layer comprises:

Spraying a medium paint on the second electroplating layer to form a medium paint layer, and the transparency of the medium paint layer is greater than or equal to a seventh preset threshold;

Spraying a top paint on the middle paint layer to generate the top paint layer; and,

The performing laser engraving treatment on the local area of the top paint layer, the second electroplating layer and the second color paint layer includes:

Laser engraving is performed on the local areas of the top paint layer, the middle paint layer, the second electroplating layer and the second color paint layer to form the hollow structure.
The method according to any one of claims 19 to 22, wherein the spraying protective paint on the first color paint layer to form a protective paint layer comprises:

Electroplating on the first color paint layer by thin plating to form a second electroplating layer;

A protective paint is sprayed on the second electroplating layer to form a protective paint layer.
The method according to claim 26, wherein the electroplating process on the first color paint layer to form a second electroplating layer comprises:

Spraying transition paint on the first color paint layer to form a transition paint layer;

Electroplating is performed on the transition paint layer by a thin plating method to form the second electroplating layer.
The method according to any one of claims 19 to 27, wherein the color of the material of the first color paint layer and the color of the material of the second color paint layer are different.
The method according to any one of claims 19 to 28, wherein the pattern formed by the hollow structure is square.
The method according to any one of claims 19 to 29, wherein the hollow structure is formed based on laser engraving technology.
The method according to any one of claims 19 to 30, wherein the material of the substrate is a composite material.
The method of claim 31, wherein the composite material is glass fiber.
The method according to any one of claims 19 to 32, wherein the material of the top paint layer is a matt paint.
The method according to any one of claims 19 to 33, wherein the material of the protective paint layer is varnish.