WO2021082535A1

WO2021082535A1 - Manufacturing method for housing of electronic device, housing, and electronic device

Info

Publication number: WO2021082535A1
Application number: PCT/CN2020/102719
Authority: WO
Inventors: 谭小兵; 张友良; 游玉霖; 龚露露
Original assignee: 华为技术有限公司
Priority date: 2019-10-31
Filing date: 2020-07-17
Publication date: 2021-05-06
Also published as: CN112746301A; CN112746301B

Abstract

The present application relates to the technical field of housings of electronic devices, and particularly relates to a manufacturing method for a housing of an electronic device, a housing, and an electronic device. The housing comprises a metal middle frame, wherein the metal middle frame comprises a first portion and a second portion, and the first portion is used for being in contact with a glass panel of a display screen of an electronic device. The manufacturing method comprises the following steps: performing anodic oxidation on a metal middle frame; coloring the metal middle frame, wherein the color of the colored metal middle frame is a second color; and coloring a first portion by means of pad printing, wherein the color of the colored first portion is a first color, the first color is different from the second color, and the color that the portion of a glass panel that is in contact with the first portion appears to be is the first color. In the manufacturing method for a housing of an electronic device provided in the present application, the first portion is colored by means of pad printing, wherein the color of the colored first portion is the same as the color that the portion of the glass panel that is in contact with the first portion appears to be, and both these are the first color.

Description

Manufacturing method of housing of electronic equipment, housing and electronic equipment

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on January 8, 2020, with the application number 202010019332.X, and the title of the invention "Method for manufacturing the housing of electronic equipment, housing and electronic equipment", and The priority of the Chinese patent application filed with the Chinese Patent Office, the application number is 201911054518.2, and the invention title is "a shell and its production method" on October 31, 2019, the entire content of which is incorporated into this application by reference.

Technical field

This application relates to the technical field of housings of electronic devices, and in particular to a manufacturing method of a housing of an electronic device, a housing and an electronic device.

Background technique

With the improvement of people’s aesthetics of electronic equipment, how to integrate the appearance of the glass panel and the housing (especially the metal middle frame) on the front of the electronic equipment ingeniously to meet the extreme ID (Industrial Design) requirements as much as possible , This puts forward higher requirements for the surface treatment of the metal middle frame, that is, it is necessary to consider making the appearance color of the contact part of the metal middle frame and the glass panel consistent.

Therefore, there is an urgent need for a new type of manufacturing method of the housing of the electronic device, the housing and the electronic device to solve the above-mentioned problems.

Application content

The embodiments of the present application provide a method for manufacturing a housing of an electronic device, a housing, and an electronic device, so as to achieve the same appearance color of the part where the metal middle frame is in contact with the glass panel.

In the first aspect, an embodiment of the present application provides a method for manufacturing a housing of an electronic device. The housing includes a metal middle frame, the metal middle frame includes a first part and a second part, and the first part is used for In contact with the glass panel of the display screen of the electronic device, the manufacturing method includes the following steps: anodizing the metal middle frame; coloring the metal middle frame, and the color of the colored metal middle frame is The second color; the first part is colored by pad printing, the color of the colored first part is the first color, the first color is different from the second color, and the glass panel is the same as the The appearance color of the part contacted by the first part is the first color.

It can be seen that the manufacturing method of the housing of the electronic device provided by the present application colors the first part by pad printing, and the color of the colored first part is the same as the appearance color of the part where the glass panel and the first part are in contact, and both are The first color; and the surface appearance of the metal middle frame formed by the above method is better, there is no step difference between the first color and the second color, the process of forming the appearance of the metal middle frame is simple, and the processing cost is low.

In a possible design, after the coloring of the first part, the method further includes: drying the colored first part. In order to make the paint of the first color better adhere to the surface of the second color, at least the first part needs to be dried. Of course, while the first part is being dried, the second part can also be dried.

In a possible design, after the colored first part is dried, the method further includes: sealing the metal middle frame.

In a possible design, after the coloring of the metal middle frame and before the coloring of the first part, the method further includes: drying the colored metal middle frame. In this way, the corrosion resistance and weather resistance of the surface of the metal middle frame can be increased, and the color fastness and light fastness can be further improved.

In a possible design, before the anodizing of the metal middle frame, the method further includes: polishing the metal middle frame. Through polishing, the surface of the metal middle frame can be brighter, more detailed and smooth.

In a second aspect, another embodiment of the present application provides a method for manufacturing a housing of an electronic device. The housing includes a metal middle frame. The metal middle frame includes a first part and a second part. In contact with the glass panel of the display screen of the electronic device, the manufacturing method includes the following steps: at least ink masking of the second part of the surface; laser engraving on the first part of the surface; The first part is anodized, the first part is colored, the color of the colored first part is the first color, and the appearance color of the part of the glass panel in contact with the first part is the first color; The ink on the surface of the second part is removed; the second part is anodized, the second part is colored, and the color of the second part after coloring is the second color, the first color and The second color is different. With this arrangement, the surface appearance of the metal middle frame is better, and there is no step difference between the first color and the second color.

In a possible design, the laser engraving of the surface of the first part includes: laser engraving the surface of the first part by a carbon dioxide laser engraving machine. A carbon dioxide laser engraving machine can be used to laser engrave the surface of the first part of the metal frame after the ink has been shielded, so as to laser engrave the ink on the surface of the first part.

In a possible design, after the laser engraving of the surface of the first part and before the anodizing of the first part, the method further includes: polishing the first part. Through polishing or fine polishing, the surface of the first part can be brighter, more detailed and smooth.

In a possible design, after the ink on the surface of the second part is removed and before the anodizing of the second part, the method further includes: Perform polishing and/or ultrasonic cleaning. In order to remove the ink on the surface of the second part more fully, the surface of the second part may be subjected to fine polishing and/or ultrasonic cleaning.

In a possible design, after the first part is colored and before the ink on the surface of the second part is removed, the method further includes: sealing the first part. In this way, the corrosion resistance and weather resistance of the surface of the first part can be increased, and the color fastness and light fastness can be further improved.

In a possible design, after the coloring of the second part, the method further includes: sealing the second part. In this way, the corrosion resistance and weather resistance of the surface of the second part can be increased, and the color fastness and light fastness can be further improved.

In a possible design, before the ink masking is performed on at least the second part of the surface, the method further includes: polishing the metal middle frame. Through polishing, the surface of the metal middle frame can be brighter, more detailed and smooth.

In a third aspect, another embodiment of the present application provides a method for manufacturing a housing of an electronic device. The housing includes a metal middle frame. The metal middle frame includes a first part and a second part. In contact with the glass panel of the display screen of the electronic device, the manufacturing method includes the following steps: at least ink-masking the first part of the surface; laser engraving on the second part of the surface; The second part is anodized, the second part is colored, and the color of the colored second part is the second color; the ink on the surface of the first part is removed; the first part is anodized Oxidation, coloring the first part, the color of the first part after coloring is the first color, the first color is different from the second color, the appearance of the part of the glass panel in contact with the first part The color is the first color. With this arrangement, the surface appearance of the metal middle frame is better, and there is no step difference between the first color and the second color.

In a possible design, the laser engraving of the surface of the second part includes: laser engraving the surface of the second part by a carbon dioxide laser engraving machine. A carbon dioxide laser engraving machine can be used to laser engrave the surface of the second part of the metal frame after the ink has been shielded, so as to laser engrave the ink on the surface of the second part.

In a possible design, after the laser engraving on the surface of the second part and before the anodizing of the second part, the method further includes: polishing the second part . Through polishing or fine polishing, the surface of the second part can be brighter, more detailed and smooth.

In a possible design, after the ink on the surface of the first part is removed and before the anodizing of the first part, the method further includes: polishing and polishing the first part. / Or ultrasonic cleaning. In order to remove the ink on the surface of the first part more fully, the surface of the first part may be subjected to fine polishing and/or ultrasonic cleaning.

In a possible design, after the coloring of the second part and before removing the ink on the surface of the first part, the method further includes: sealing the second part . In this way, the corrosion resistance and weather resistance of the surface of the second part can be increased, and the color fastness and light fastness can be further improved.

In a possible design, after the coloring of the first part, the method further includes: sealing the first part. In this way, the corrosion resistance and weather resistance of the surface of the first part can be increased, and the color fastness and light fastness can be further improved.

In a possible design, before the ink masking is performed on at least the first part of the surface, the method further includes: polishing the metal middle frame. Through polishing, the surface of the metal middle frame can be brighter, more detailed and smooth.

In a fourth aspect, another embodiment of the present application provides a method for manufacturing a housing of an electronic device. The housing includes a metal middle frame. The metal middle frame includes a first part and a second part. In contact with the glass panel of the display screen of the electronic device, the manufacturing method includes the following steps: anodizing the metal middle frame, coloring the metal middle frame, and the color of the colored metal middle frame Is the first color, and the appearance color of the part of the glass panel in contact with the first part is the first color; at least the surface of the first part is masked by ink;

Perform laser engraving on the surface of the second part; perform anodization on the second part after laser engraving, color the second part, and the color of the second part after coloring is the second color, the The first color is different from the second color; the ink on the surface of the first part is removed. With this arrangement, the surface appearance of the metal middle frame is better, and there is no step difference between the first color and the second color.

In a possible design, the laser engraving of the surface of the second part includes: laser engraving the surface of the second part by a red laser engraving machine. The red laser engraving machine can laser engrave the ink, color layer and oxide film on the second part of the surface together.

In a possible design, the laser engraving of the surface of the second part includes: laser engraving the surface of the second part by a carbon dioxide laser engraving machine; and performing laser engraving on the surface of the second part by a carbon dioxide laser engraving machine. After the laser engraving on the surface of the two parts and before the anodizing of the second part in the step, the method further includes: removing the oxide film on the surface of the second part. The carbon dioxide laser engraving machine can only laser engrave the ink and color layer, but not the oxide film. Therefore, at this time, the oxide film can be removed by washing with alkaline solution to prepare the second part for coloring.

In a possible design, after the ink on the surface of the first part is removed, the method further includes: polishing and/or ultrasonic cleaning the first part. In order to remove the ink on the surface of the first part more fully, the surface of the first part may be subjected to fine polishing and/or ultrasonic cleaning.

In a possible design, after the coloring of the metal middle frame and before the ink masking of at least the first part of the surface, the method further includes: sealing the metal middle frame. In this way, the corrosion resistance and weather resistance of the surface of the metal middle frame can be increased, and the color fastness and light fastness can be further improved.

In a fifth aspect, another embodiment of the present application provides a method for manufacturing a housing of an electronic device. The housing includes a metal middle frame. The metal middle frame includes a first part and a second part. In contact with the glass panel of the display screen of the electronic device, the manufacturing method includes the following steps: anodizing the metal middle frame, coloring the metal middle frame, and the color of the colored metal middle frame Is the second color; at least the second part of the surface is masked with ink; the first part of the surface is laser-engraved; the first part after the laser-engraved is anodized, the first part is colored, and the colored The color of the first part is a first color, and the appearance color of a part of the glass panel in contact with the first part is a first color, and the first color and the second color are different; for the second part The ink on the surface is removed. With this arrangement, the surface appearance of the metal middle frame is better, and there is no step difference between the first color and the second color.

In a possible design, the laser engraving of the surface of the first part includes: laser engraving the surface of the first part by a red laser engraving machine. The red laser engraving machine can laser engrave the ink, color layer and oxide film on the second part of the surface together.

In a possible design, the laser engraving of the surface of the first part includes: laser engraving the surface of the first part by a carbon dioxide laser engraving machine; and performing laser engraving on the surface of the first part by a carbon dioxide laser engraving machine. After the laser engraving and before the anodizing of the first part, the method further includes: removing the oxide film on the surface of the first part. The carbon dioxide laser engraving machine can only laser engrave the ink and color layer, but not the oxide film. Therefore, at this time, the oxide film can be removed by washing with alkaline solution to prepare the first part for coloring.

In a possible design, after removing the ink on the surface of the second part, the method further includes: polishing and/or ultrasonic cleaning the second part. In order to remove the ink on the surface of the second part more fully, the surface of the second part may be subjected to fine polishing and/or ultrasonic cleaning.

In a possible design, after the coloring of the metal middle frame and before the ink masking of at least the second part of the surface, the method further includes: sealing the metal middle frame . In this way, the corrosion resistance and weather resistance of the surface of the metal middle frame can be increased, and the color fastness and light fastness can be further improved.

In a sixth aspect, an embodiment of the present application provides a housing, which is made by using the manufacturing method of the housing of an electronic device as described above.

In a seventh aspect, an embodiment of the present application provides an electronic device, and the electronic device includes the housing as described above.

Description of the drawings

FIG. 1 is a schematic structural diagram of a housing provided by an embodiment of the application;

Fig. 2 is a partial structural diagram of the housing shown in Fig. 1;

3 is a schematic diagram of a partial structure of a housing provided by another embodiment of the application;

4 is a flowchart of a method for manufacturing a housing provided by an embodiment of the application;

FIG. 5 is a partial structural diagram of the housing after performing step S12 in FIG. 4; FIG.

FIG. 6 is a partial structural diagram of the housing after performing step S13 in FIG. 4; FIG.

FIG. 7 is a partial exploded schematic diagram of the housing and the glass panel after performing step S13 in FIG. 4;

FIG. 8 is a flowchart of a method for manufacturing a housing provided by another embodiment of the application;

FIG. 9 is a flowchart of a method for manufacturing a housing provided by another embodiment of the application;

FIG. 10 is a flowchart of a method for manufacturing a housing provided by another embodiment of the application;

FIG. 11 is a flowchart of a method for manufacturing a housing provided by another embodiment of the application.

Reference signs:

1-Metal middle frame;

11-The first part;

12-The second part;

2-Glass panel.

The drawings here are incorporated into the specification and constitute a part of the specification, show embodiments that conform to the application, and are used together with the specification to explain the principle of the application.

Detailed ways

The application will be described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the application, and not used to limit the application.

In the description of the embodiments of the present application, unless expressly stipulated and limited otherwise, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; unless otherwise specified Or, the term "multiple" refers to two or more; the terms "connected", "fixed", etc. should be understood in a broad sense, for example, "connected" can be a fixed connection or a detachable connection, or Integral connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood according to specific circumstances.

In the description of this specification, it should be understood that the terminology such as “upper” and “lower” described in the embodiments of the present application are described from the angle shown in the drawings, and should not be construed as referring to the embodiments of the present application. limited. In addition, in the context, it should also be understood that when it is mentioned that an element is connected "on" or "under" another element, it can not only be directly connected "on" or "under" the other element, but also It is indirectly connected "on" or "under" another element through an intermediate element.

With the improvement of people’s aesthetics of smart electronic devices, how to integrate the appearance effects of the glass panel and the shell (especially the metal middle frame) on the front of the electronic device ingeniously, and try to meet the ultimate ID (Industrial Design) Demand, this puts forward higher requirements for the surface treatment of the metal middle frame, that is, it is necessary to consider making the appearance color of the part where the metal middle frame contacts the glass panel consistent.

To solve the above-mentioned problem, an embodiment of the present application provides a housing, which is a part of an electronic device. In some implementation solutions, the electronic device may be a mobile phone, a tablet, a wearable device, and the like.

As shown in FIG. 1 and FIG. 2, it is a housing provided by an embodiment of the application. The housing includes a metal middle frame 1. The metal middle frame 1 includes a first part 11 and a second part 12. The first part 11 may have a first color, and the second part 12 may have a second color, wherein:

In one embodiment, a CNC (Computer Numerical Control, computer numerical control) secondary anode solution can be used, that is, the entire shell (including the metal middle frame 1) is anodized once, and then the entire body is secondly anodized. Color the color, and then use CNC to mill away the attached color layer and oxide layer on the part of the metal frame 1 in contact with the glass panel 2 (that is, the first part 11), and then perform the second anodization on the first part 11, and finally The first part 11 is colored with the first color. It can be known that the appearance color of the part of the glass panel 2 in contact with the first part 11 can be the first color. For example, a layer of pigment of the first color is coated on the inner wall of the outer circumference of the glass panel 2 so that the glass panel 2 and The appearance of the contacted part of the first part 11 presents the first color, that is, the appearance color of the contacted part is the first color. After the first part 11 is colored in the first color, the color of the part where the metal middle frame 1 and the glass panel 2 are in contact can be achieved in this way. However, in this embodiment, the use of the CNC machining process may cause the appearance of the metal middle frame 1 to be poor. For example, on the one hand, a certain thickness (for example, 0.2 mm) may be milled off by the CNC, which may cause a difference in the surface appearance of the metal middle frame 1; on the other hand, the thickness of the surface of the metal middle frame 1 may vary due to CNC machining errors.

It is understandable that the first part 11 is the part where the metal middle frame 1 is in contact with the glass panel 2. The display screen (not shown in the figure) usually has a glass panel 2, wherein the display screen can be a straight screen or a curved screen. For example, for an electronic device with a straight screen, the first part 11 may be the upper frame of the metal middle frame 1 (see FIG. 3); for another example, for an electronic device with a curved screen, the first part 11 may be a metal middle frame. 1 of the upper four corners, where Figure 1 shows a metal middle frame 1 applied to a curved screen mobile phone. Here, this application does not limit the position of the first part 11 specifically the metal middle frame 1, as long as it is ensured that the first part 11 is The part where the metal middle frame 1 and the glass panel 2 are in contact is sufficient. In addition, in this embodiment, the shell can refer to the metal middle frame 1. Of course, the shell can also refer to the shell formed by the metal middle frame 1 and the bottom plate. Here, this application only discusses how the metal middle frame 1 is implemented. Two-color effects are discussed.

It can also be understood that, generally speaking, in order to integrate the appearance effects of the glass panel 2 and the housing (especially the metal middle frame 1) on the front of the electronic device ingeniously, for example, the metal middle frame 1 and the glass panel 2 can be integrated. The appearance color of the contacting part is made black, so that the appearance color of the contacting part of the first part 11 and the glass panel 2 is consistent, forming a borderless visual sense, thereby creating a real sense of "screen aesthetics". In other words, the first color can be black, of course, the color of the first color can also be selected adaptively according to actual needs, for example, it can be other single colors or composite colors. As for the second color, the color of the second color can also be selected adaptively according to actual needs, for example, it can be a single color or a composite color that is different from the first color.

In another embodiment, the first color is formed by pad printing, the second color is formed by anodizing and then colored, and the first color is arranged on the surface of the second color. With this arrangement, the surface appearance of the metal middle frame 1 is better, there is no step difference between the first color and the second color, and the process for forming the appearance of the metal middle frame 1 is simple and the processing cost is low.

As shown in FIG. 4, in this embodiment, the manufacturing method of the housing of the electronic device may be:

S11. Anodize the metal middle frame 1;

In some implementation solutions, the metal middle frame 1 may be made of aluminum alloy material. The metal middle frame 1 is electrochemically oxidized. Under the action of the applied current, the metal middle frame 1 forms a layer of oxide film on the surface of the metal middle frame 1, which in turn makes the metal middle frame 1 more resistant to corrosion, hardness, and wear resistance. The insulation and heat resistance have been greatly improved.

Before step S11, in some embodiments, it may also include polishing the metal middle frame 1. Of course, it may also include chemical degreasing, water washing and polishing of the metal middle frame 1. The steps are not specifically limited. Through the polishing treatment, the surface of the metal middle frame 1 can be made brighter, more detailed and smooth.

S12. Color the metal middle frame 1, and the color of the colored metal middle frame 1 is the second color;

The surface of the oxide film of the metal middle frame 1 is composed of a porous layer, and its specific surface area (specific surface area refers to the total area of a unit mass material) is large, so it can easily adsorb dyes and colored substances to improve its decoration and durability Abrasiveness. Among them, the method of coloring the oxide film may be chemical coloring, electrolytic coloring and overall coloring. The specific coloring method of the metal middle frame 1 is not specifically limited in this application. Chemical coloring is also called adsorption coloring. Due to the high porosity of the anodic oxide film, strong adsorption capacity and easy coloring, this coloring method has fast coloring speed, simple and convenient operation, particularly rich colors and bright colors. The electrolytic coloring is based on the transparent anodic oxide film of sulfuric acid, and the coloring treatment is carried out by direct current or alternating current in a solution containing metal salt. Overall coloring is also called natural coloring, but this method has high energy consumption, high cost, and limited colors. In some implementations, the anodized metal middle frame 1 can be put into an electrolyte tank as a whole, so that the surface color of the metal middle frame 1 forms a second color (see FIG. 5).

S13. Color the first part 11 by pad printing, and the color of the colored first part is the first color;

In some implementations, for example, the first part 11 can be pad-printed by a rubber roller attached with the first color, so that the second color on the surface of the first part 11 is covered by the first color, so that the first part 11 can display the first part 11 One color (see FIG. 6), so that the metal middle frame 1 achieves a two-color effect, and a better appearance effect of the metal middle frame 1 is realized. As shown in FIG. 7, the color of the first part 11 of the colored metal middle frame 1 is the same as the appearance color of the part where the glass panel 2 and the first part 11 are in contact, for example, both may be black. It is understandable that the pigment of the part of the glass panel 2 in contact with the first part 11 may be black ink.

It should be noted that since the first color of the first part 11 is realized by pad printing, the adhesion of the pigment of the first color to the surface of the second color after pad printing may not be strong, which may affect the subsequent Sealing effect. Therefore, in order to make the paint of the first color better adhere to the surface of the second color, at least the first part 11 needs to be dried. Of course, while the first part 11 is being dried, the second part 12 can also be dried. .

It should be further explained that when the metal middle frame 1 is colored in the second color, if the metal middle frame 1 uses the electrolytic coloring method, the metal ions are reduced in the state of colloidal particles under the energized environment. Deposited in the pores of the oxide film, the metal colloidal particles in this coloring method can enter the bottom of the micropores; if the metal middle frame 1 uses a chemical coloring method, organic dyes are generally adsorbed on the pores of the micropores, which is difficult It enters the bottom of the micropores, thus affecting the sealing of the micropores, making it difficult for the sealing quality to reach the ideal level. Therefore, when the metal middle frame 1 adopts the electrolytic coloring method, it is necessary to dry at least the first color pigment of the first part 11, that is, to dry the first color pigment after pad printing, or to After pad printing, the color of the first color and the second color of the second part 12 are dried; when the metal middle frame 1 is colored by chemical coloring, the second color of the metal middle frame 1 can be applied first. The color pigments are dried to increase the adhesion of the second color pigments, and then the first color pigments after pad printing are dried again.

In some embodiments, the dried metal middle frame 1 may be sealed to increase the corrosion resistance and weather resistance of the surface of the metal middle frame 1 and further improve the color fastness and light fastness. In some implementation schemes, the coloring method of sealing may be hydration sealing, inorganic salt solution sealing or transparent organic coating sealing. The sealing method is not specifically limited in this application.

In some embodiments, the metal middle frame 1 that has been dried may also be subjected to dust removal treatment with a ash remover, so as to increase the cleanliness of the metal middle frame 1.

In another embodiment, the first color is formed by anodizing and then coloring, and the second color is formed by anodizing and then coloring. The step of forming the first color and the second color includes: at least the second color is formed The surface of the part 12 is masked by ink; the surface of the first part 11 is laser-engraved; the first part 11 is anodized and the first color is colored; the ink on the surface of the second part 12 is removed; the second part 12 is performed It is anodized and colored in the second color. With this arrangement, the surface appearance of the metal middle frame 1 is better, and there is no step difference between the first color and the second color.

As shown in FIG. 8, in this embodiment, the manufacturing method of the housing of the electronic device may be:

S21, at least perform ink masking on the surface of the second part 12;

In some implementation solutions, the surface of the second part 12 may be masked with ink, or the surface of the metal middle frame 1 may be masked with ink, so as to prepare the first part 11 for coloring in the first color. This is because the part masked by the ink will not be electrolytically colored again, so that the step of ink masking is used to separate the coloring steps of the first part 11 and the second part 12.

Before step S21, in some embodiments, it may also include polishing the metal middle frame 1. Of course, it may also include chemical degreasing, water washing and polishing of the metal middle frame 1. The steps are not specifically limited. Through the polishing treatment, the surface of the metal middle frame 1 can be made brighter, more detailed and smooth.

S22. Carry out laser engraving on the surface of the first part 11;

In some implementation solutions, a laser engraving machine can be used to laser engrave the surface of the first part 11 of the metal middle frame 1 after the ink is masked, so as to laser engrave the ink on the surface of the first part 11. Since the spraying area of the ink cannot be well controlled when spraying ink, but at least the area covered by the ink is greater than or equal to the second part 12, which may cause some ink to be sprayed on the surface of the first part 11. Therefore, step S22 needs to spray Go to the first part 11 for laser engraving.

In some implementation schemes, the laser engraving machine can use a carbon dioxide laser engraving machine. The carbon dioxide laser engraving machine adopts an infrared light band, 10.64μm gas laser, and charges carbon dioxide gas into the high-voltage discharge tube to generate glow discharge and release gas molecules. Laser, amplify the laser energy to form a laser beam for material processing, and the laser beam vaporizes the surface of the processed body to achieve the purpose of engraving.

S23. Perform anodization on the first part 11 after laser engraving, and color the first part 11, and the color of the first part 11 after coloring is the first color;

In some implementation solutions, the metal middle frame 1 may be made of aluminum alloy material. Since the second part 12 is shielded by the ink at this time, only the first part 11 can be electrochemically oxidized. Under the action of the applied current, the metal middle frame 1 forms an oxide film on the surface of the first part 11, thereby making the first part 11 The corrosion resistance, hardness, abrasion resistance, insulation, heat resistance, etc. have been greatly improved.

The surface of the oxide film of the first part 11 is composed of a porous layer with a large specific surface area, so it can easily adsorb dyes and colored substances to improve its decoration and wear resistance. Among them, the coloring method of the oxide film may be chemical coloring, electrolytic coloring and overall coloring. Here, the specific coloring method of the first part 11 is not specifically limited in this application. Among them, the difference between chemical coloring and electrolytic coloring has been explained above, and will not be repeated here. In some implementation solutions, the anodized metal middle frame 1 can be put into an electrolyte tank as a whole, so that the surface color of the first part 11 becomes the first color.

Before step S23, in some implementations, it may also include polishing the first part 11, and in some implementations, it may be finish polishing. Through polishing or fine polishing, the surface of the first part 11 can be made brighter, more detailed and smooth.

In some embodiments, the colored first part 11 may be sealed to increase the corrosion resistance and weather resistance of the surface of the first part 11, and further improve the color fastness and light fastness. In some implementation schemes, the coloring method of sealing may be hydration sealing, inorganic salt solution sealing or transparent organic coating sealing. The sealing method is not specifically limited in this application.

S24. Remove the ink on the surface of the second part 12;

In some implementation solutions, the ink on the surface of the second part 12 may be removed by using an organic solvent for removing the ink. It is understandable that, in order to more fully remove the ink on the surface of the second part 12, the surface of the second part 12 may also be subjected to fine polishing and/or ultrasonic cleaning.

S25, performing anodization on the second part 12, and coloring the second part 12, and the color of the second part 12 after the coloring is the second color;

Since the first part 11 has already adhered to the first color at this time, when the metal middle frame 1 is electrolytically colored here, the first part 11 will not be colored again. In other words, the second part 12 will undergo electrochemical oxidation at this time, and the metal middle frame 1 will form an oxide film on the surface of the second part 12 under the action of the applied current, thereby making the second part 12 more resistant to corrosion. Hardness, wear resistance, insulation, heat resistance, etc. have been greatly improved.

The surface of the oxide film of the second part 12 is composed of a porous layer, and its specific surface area is large, so dyes and colored substances can be adsorbed relatively easily to improve its decoration and wear resistance. The coloring method of the oxide film may be chemical coloring, electrolytic coloring and overall coloring. The specific coloring method of the second part 12 is not specifically limited in this application. Among them, the difference between chemical coloring and electrolytic coloring has been explained above, and will not be repeated here. In some implementations, the anodized metal middle frame 1 can be put into an electrolyte tank as a whole, so that the surface color of the second part 12 becomes the second color.

In some embodiments, the colored second part 12 may be sealed to increase the corrosion resistance and weather resistance of the surface of the second part 12, and further improve the color fastness and light fastness. In some implementation schemes, the coloring method of sealing may be hydration sealing, inorganic salt solution sealing or transparent organic coating sealing. The sealing method is not specifically limited in this application.

In another embodiment, the first color is formed by anodizing and then coloring, and the second color is formed by anodizing and then coloring. The steps of forming the first color and the second color include: at least the first part 11 surface ink masking; laser engraving on the surface of the second part 12; anodizing the second part 12 and coloring the second color; removing the ink on the surface of the first part 11; anodizing the first part 11 Oxidize, and color the first color. With this arrangement, the surface appearance of the metal middle frame 1 is better, and there is no step difference between the first color and the second color.

S31. At least perform ink masking on the surface of the first part 11;

In some implementation solutions, the surface of the first part 11 may be ink-masked, or the surface of the metal middle frame 1 may be ink-masked, so as to prepare the second part 12 for coloring in the second color. This is because the part masked by the ink will not be electrolytically colored again, so that the step of ink masking is used to separate the coloring steps of the first part 11 and the second part 12.

Before step S31, in some embodiments, it may also include polishing the metal middle frame 1. Of course, it may also include chemical degreasing, water washing and polishing of the metal middle frame 1. The steps are not specifically limited. Through the polishing treatment, the surface of the metal middle frame 1 can be made brighter, more detailed and smooth.

S32. Carry out laser engraving on the surface of the second part 12;

In some implementations, a laser engraving machine can be used to laser engrave the surface of the second part 12 of the metal middle frame 1 after the ink is masked, so as to laser engrave the ink on the surface of the second part 12. When spraying ink, the spraying area of the ink cannot be well controlled, but at least the area covered by the ink is greater than or equal to the first part 11. This may cause some ink to be sprayed on the surface of the second part 12. Therefore, step S32 needs to spray Go to the second part 12 for laser engraving.

S33. Perform anodization on the second part 12 after laser engraving, and color the second part 12, and the color of the second part 12 after coloring is the second color;

In some implementation solutions, the metal middle frame 1 may be made of aluminum alloy material. Since the first part 11 is shielded by the ink at this time, only the second part 12 can be electrochemically oxidized. Under the action of the applied current, the metal middle frame 1 forms an oxide film on the surface of the second part 12, thereby making the second part 12 The corrosion resistance, hardness, abrasion resistance, insulation and heat resistance of part 12 have been greatly improved.

Before step S33, in some implementations, it may also include polishing the second part 12, and in some implementations, it may be fine polishing. Through polishing or fine polishing, the surface of the first part 11 can be made brighter, more detailed and smooth.

In some embodiments, the colored second part 12 can be sealed to increase the corrosion resistance and weather resistance of the surface of the second part 12, and can further improve the color fastness and light fastness. In some implementation schemes, the coloring method of sealing may be hydration sealing, inorganic salt solution sealing or transparent organic coating sealing. The sealing method is not specifically limited in this application.

S34. Remove the ink on the surface of the first part 11;

In some implementation solutions, the ink on the surface of the first part 11 can be removed by using an organic solvent for removing the ink. It can be understood that, in order to more fully remove the ink on the surface of the first part 11, the surface of the first part 11 may also be subjected to finish polishing and/or ultrasonic cleaning.

S35. Perform anodization on the first part 11, and color the first part 11, and the color of the first part 11 after the coloring is the first color;

Since the second part 12 has already adhered to the second color at this time, when the metal middle frame 1 is electrolytically colored here, the second part 12 will not be colored again. In other words, the first part 11 will undergo electrochemical oxidation at this time, and the metal middle frame 1 will form an oxide film on the surface of the first part 11 under the action of the applied current, thereby making the first part 11 more resistant to corrosion, hardness, and resistance. Abrasion, insulation, heat resistance, etc. have been greatly improved.

In another embodiment, the first color is formed by anodizing and then coloring, and the second color is formed by anodizing and then coloring. The steps of forming the first color and the second color include: 1 Perform anodization and color the first color; at least perform ink masking on the surface of the first part 11; perform laser engraving on the surface of the second part 12; perform anodization on the second part 12 and color the second color; The ink on the surface of the first part 11 is removed. With this arrangement, the surface appearance of the metal middle frame 1 is better, and there is no step difference between the first color and the second color.

As shown in FIG. 9, in this embodiment, the manufacturing method of the housing of the electronic device may be:

S41. Perform anodizing on the metal middle frame 1, and color the metal middle frame 1, and the color of the colored metal middle frame 1 is the first color;

The surface of the oxide film of the metal middle frame 1 is composed of a porous layer, and its specific surface area is large, so dyes and colored substances can be adsorbed relatively easily to improve its decoration and abrasion resistance. Among them, the method of coloring the oxide film may be chemical coloring, electrolytic coloring and overall coloring. The specific coloring method of the metal middle frame 1 is not specifically limited in this application. Among them, the difference between chemical coloring and electrolytic coloring has been explained above, and will not be repeated here. In some implementation solutions, the anodized metal middle frame 1 can be put into an electrolyte tank as a whole, so that the surface color of the metal middle frame 1 becomes the first color.

In some embodiments, the colored metal middle frame 1 may be sealed to increase the corrosion resistance and weather resistance of the surface of the metal middle frame 1, and further improve the color fastness and light fastness. In some implementation schemes, the coloring method of sealing may be hydration sealing, inorganic salt solution sealing or transparent organic coating sealing. The sealing method is not specifically limited in this application.

Before step S41, in some embodiments, it may further include polishing the metal middle frame 1. The polishing treatment can make the surface of the metal middle frame 1 brighter, more detailed and smooth.

S42. At least perform ink masking on the surface of the first part 11;

S43. Carry out laser engraving on the surface of the second part 12;

In some implementations, a laser engraving machine can be used to laser engrave the surface of the second part 12 of the metal middle frame 1 after the ink is masked, so that the ink, color layer and oxide film on the surface of the second part 12 can be laser engraved together. , Otherwise the subsequent coloring of the second part 12 cannot be achieved. When spraying ink, the spraying area of the ink cannot be well controlled, but at least the area covered by the ink is greater than or equal to the first part 11. This may cause some ink to be sprayed on the surface of the second part 12, so step S43 When the surface color layer and oxide film of the second part 12 are laser-engraved, the ink sprayed on the second part 12 also needs to be laser-engraved.

In some implementation schemes, the laser engraving machine can use a red laser engraving machine. The light energy of the red laser beam generated by the red laser engraving machine can laser engrave the oxide film of the second part 12, that is, the second part 12 can be laser engraved. The ink, color layer and oxide film on the surface of part 12 are laser-engraved together. In this embodiment, the frequency of the red light emitted by the red laser engraving machine is relatively small, and the photon energy is relatively small. During the laser engraving process, the damage to the surface of the workpiece can be reduced, thereby helping to ensure the second anodizing treatment. The visual effect of the surface of the workpiece. However, compared with the carbon dioxide laser engraving machine, there is a slight step difference (for example, 10μm) in the red laser engraving machine. Even so, the appearance effect of the metal middle frame 1 formed in this way is still better than the appearance effect of the metal middle frame 1 formed by the CNC process in the related art.

In other implementation schemes, the laser engraving machine can also use a carbon dioxide laser engraving machine. The carbon dioxide laser engraving machine can only laser engrave the ink and color layer, but not the oxide film. Therefore, at this time, the oxide film can be removed by washing with alkaline solution to prepare the second part 12 for coloring.

S44. Perform anodizing on the second part 12 after laser engraving, and color the second part 12, and the color of the second part 12 after coloring is the second color;

Since the first part 11 has already adhered to the first color and ink at this time, when the metal middle frame 1 is electrolytically colored here, the first part 11 will not be colored again. In other words, the second part 12 will undergo electrochemical oxidation at this time, and the metal middle frame 1 will form an oxide film on the surface of the second part 12 under the action of the applied current, thereby making the second part 12 more resistant to corrosion. Hardness, wear resistance, insulation, heat resistance, etc. have been greatly improved.

The surface of the oxide film of the second part 12 is composed of a porous layer, and its specific surface area is large, so dyes and colored substances can be adsorbed relatively easily to improve its decoration and wear resistance. Among them, the coloring method of the oxide film can be chemical coloring, electrolytic coloring and overall coloring. The specific coloring method of the second part 12 is not specifically limited in this application. Among them, the difference between chemical coloring and electrolytic coloring has been explained above, and will not be repeated here. In some implementations, the anodized metal middle frame 1 can be put into an electrolyte tank as a whole, so that the surface color of the second part 12 becomes the second color.

Before step S44, in some implementations, it may further include polishing the second part 12, and in some implementations, it may be fine polishing. Through polishing or fine polishing, the surface of the second part 12 can be made brighter, more detailed and smooth.

S45. Remove the ink on the surface of the first part 11;

In some implementation solutions, the ink on the surface of the first part 11 can be removed by using an organic solvent for removing the ink. It is understandable that, in order to make the ink on the surface of the first part 11 more fully removed, the surface of the first part 11 may also be subjected to finish polishing and/or ultrasonic cleaning.

It should be noted that, in this embodiment, the first part 11 has already attached the first color and ink. When the metal middle frame 1 is electrolytically colored here, the first part 11 will not be colored again. Therefore, step S45 can be executed before step S44, that is, step S45 can be executed first, and then step S44 is executed. The present application does not specifically limit the order of execution of step S44 and step S45.

In another embodiment, the first color is formed by anodizing and then coloring, and the second color is formed by anodizing and then coloring. The steps of forming the first color and the second color include: 1. Perform anodization and color the second color; at least mask the surface of the second part 12 with ink; perform laser engraving on the surface of the first part 11; perform anodization on the first part 11 and color the first color; The ink on the surface of the second part 12 is removed. With this arrangement, the surface appearance of the metal middle frame 1 is better, and there is no step difference between the first color and the second color.

As shown in FIG. 10, in this embodiment, the manufacturing method of the housing of the electronic device may be:

S51. Perform anodization on the metal middle frame 1, and color the metal middle frame 1, and the color of the colored metal middle frame 1 is the second color;

The surface of the oxide film of the metal middle frame 1 is composed of a porous layer, and its specific surface area is large, so dyes and colored substances can be adsorbed relatively easily to improve its decoration and abrasion resistance. Among them, the method of coloring the oxide film may be chemical coloring, electrolytic coloring and overall coloring. The specific coloring method of the metal middle frame 1 is not specifically limited in this application. Among them, the difference between chemical coloring and electrolytic coloring has been explained above, and will not be repeated here. In some implementation schemes, the anodized metal middle frame 1 can be put into an electrolyte tank as a whole, so that the surface color of the metal middle frame 1 becomes the second color.

Before step S51, in some embodiments, it may also include polishing the metal middle frame 1. The polishing treatment can make the surface of the metal middle frame 1 brighter, more detailed and smooth.

S52. At least perform ink masking on the surface of the second part 12;

S53. Carry out laser engraving on the surface of the first part 11;

In some implementation schemes, a laser engraving machine can be used to laser engrave the surface of the first part 11 of the metal middle frame 1 after the ink is masked, so that the ink, color layer and oxide film on the surface of the first part 11 can be laser engraved together, otherwise The subsequent coloring of the first part 11 cannot be achieved. When spraying ink, the spraying area of the ink cannot be well controlled, but at least the area covered by the ink is greater than or equal to the second part 12, which may cause some ink to be sprayed on the surface of the first part 11. Therefore, step S53 is in the first part 11 When the surface color layer and oxide film of part 11 are laser-engraved, the ink sprayed on the first part 11 also needs to be laser-engraved.

In other implementation schemes, the laser engraving machine can also use a carbon dioxide laser engraving machine. The carbon dioxide laser engraving machine can only laser engrave the ink and color layer, but not the oxide film. Therefore, at this time, the oxide film can be removed by washing with alkaline solution to prepare the first part 11 for coloring.

S54. Perform anodizing on the first part 11 after laser engraving, and color the first part 11, and the color of the first part 11 after coloring is the first color;

Since the second part 12 has already adhered to the second color and ink at this time, when the metal middle frame 1 is electrolytically colored here, the second part 12 will not be colored again. In other words, the first part 11 will undergo electrochemical oxidation at this time, and the metal middle frame 1 will form an oxide film on the surface of the first part 11 under the action of the applied current, thereby making the first part 11 more resistant to corrosion, hardness, and resistance. Abrasion, insulation, heat resistance, etc. have been greatly improved.

The surface of the oxide film of the first part 11 is composed of a porous layer, and its specific surface area is large, so dyes and colored substances can be adsorbed relatively easily to improve its decoration and abrasion resistance. Among them, the coloring method of the oxide film may be chemical coloring, electrolytic coloring and overall coloring. Here, the specific coloring method of the first part 11 is not specifically limited in this application. Among them, the difference between chemical coloring and electrolytic coloring has been explained above, and will not be repeated here. In some implementation solutions, the anodized metal middle frame 1 can be put into an electrolyte tank as a whole, so that the surface color of the first part 11 becomes the first color.

Before step S54, in some implementations, it may further include polishing the first part 11, and in some implementations, it may be fine polishing. Through polishing or fine polishing, the surface of the first part 11 can be made brighter, more detailed and smooth.

S55. Remove the ink on the surface of the second part 12;

It should be noted that, in this embodiment, the second color and ink have been attached to the second part 12, and when the metal middle frame 1 is electrolytically colored here, the second part 12 will not be colored again. Therefore, step S55 can be executed before step S54, that is, step S55 can be executed first, and then step S54 is executed. The present application does not specifically limit the order of execution of step S54 and step S55.

In summary, the method for manufacturing the housing of the electronic device, the housing, and the electronic device provided by the embodiments of the present application realize a better appearance effect on the surface of the metal middle frame 1. There is a beneficial effect of a step difference.

The above descriptions are only preferred embodiments of this application and are not intended to limit this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in this application Within the scope of protection.

Claims

A method for manufacturing a housing of an electronic device, wherein the housing includes a metal middle frame, the metal middle frame includes a first part and a second part, and the first part is used for the display of the electronic device. The glass panel of the screen is contacted, and the manufacturing method includes the following steps:

Anodic oxidation of the metal middle frame;

Color the metal middle frame, and the color of the colored metal middle frame is the second color;

The first part is colored by pad printing, the color of the colored first part is the first color, the first color is different from the second color, and the glass panel is in contact with the first part The appearance color of the part is the first color.
The manufacturing method of the housing of the electronic device according to claim 1, wherein after the coloring of the first part, the method further comprises:

Dry the colored first part.
4. The method for manufacturing the housing of an electronic device according to claim 2, wherein after the colored first part is dried, the method further comprises:

Sealing the metal middle frame.
The method for manufacturing the housing of an electronic device according to claim 1, wherein after the coloring of the metal middle frame and before the coloring of the first part, the method further comprises:

Dry the colored metal middle frame.
The manufacturing method of the casing according to any one of claims 1 to 4, wherein before the anodizing of the metal middle frame, the method further comprises:

Polishing the metal middle frame.
A method for manufacturing a housing of an electronic device, wherein the housing includes a metal middle frame, the metal middle frame includes a first part and a second part, and the first part is used for the display of the electronic device. The glass panel of the screen is contacted, and the manufacturing method includes the following steps:

Performing ink masking on at least the second part of the surface;

Laser engraving the surface of the first part;

The first part after laser engraving is anodized, the first part is colored, the color of the colored first part is the first color, and the appearance color of the part of the glass panel in contact with the first part is First color

Removing the ink on the surface of the second part;

The second part is anodized, the second part is colored, and the color of the colored second part is a second color, and the first color and the second color are different.
The manufacturing method of the housing of the electronic device according to claim 6, wherein the laser engraving of the surface of the first part comprises:

The surface of the first part is laser engraved by a carbon dioxide laser engraving machine.
The method for manufacturing the housing of an electronic device according to claim 6, wherein after the laser engraving on the surface of the first part and before the anodizing on the first part, the method further include:

Polishing the first part.
7. The method for manufacturing the housing of an electronic device according to claim 6, wherein after the ink on the surface of the second part is removed and before the anodizing of the second part, The method also includes:

Polishing and/or ultrasonic cleaning is performed on the second part.
The method of manufacturing the housing of an electronic device according to claim 6, wherein after the coloring of the first part and before the ink on the surface of the second part is removed, the method Also includes:

The first part is sealed.
8. The method for manufacturing the housing of an electronic device according to claim 6, wherein after the coloring of the second part, the method further comprises:

The second part is sealed.
A method for manufacturing a housing of an electronic device, wherein the housing includes a metal middle frame, the metal middle frame includes a first part and a second part, and the first part is used for the display of the electronic device. The glass panel of the screen is contacted, and the manufacturing method includes the following steps:

Performing ink masking on at least the first part of the surface;

Laser engraving the surface of the second part;

Performing anodization on the second part after radium carving, coloring the second part, and the color of the second part after coloring is the second color;

Removing the ink on the surface of the first part;

The first part is anodized, the first part is colored, the color of the colored first part is the first color, the first color is different from the second color, and the glass panel is different from the second color. The appearance color of the part contacted by the first part is the first color.
A method for manufacturing a housing of an electronic device, wherein the housing includes a metal middle frame, the metal middle frame includes a first part and a second part, and the first part is used for the display of the electronic device. The glass panel of the screen is contacted, and the manufacturing method includes the following steps:

The metal middle frame is anodized, the metal middle frame is colored, the color of the colored metal middle frame is the first color, and the appearance color of the part of the glass panel in contact with the first part is the first color One color

Performing ink masking on at least the first part of the surface;

Laser engraving the surface of the second part;

Performing anodization on the second part after radium carving, coloring the second part, the color of the second part after coloring is a second color, and the first color and the second color are different;

The ink on the surface of the first part is removed.
The manufacturing method of the housing of the electronic device according to claim 13, wherein the laser engraving on the surface of the second part comprises:

Laser engraving is performed on the surface of the second part by a red laser engraving machine.
The manufacturing method of the housing of the electronic device according to claim 13, wherein the laser engraving on the surface of the second part comprises:

Laser engraving the surface of the second part by a carbon dioxide laser engraving machine;

After the laser engraving of the surface of the second part by the carbon dioxide laser engraving machine and before the anodizing of the second part after the laser engraving, the method further includes:

The oxide film on the surface of the second part is removed.
A method for manufacturing a housing of an electronic device, wherein the housing includes a metal middle frame, the metal middle frame includes a first part and a second part, and the first part is used for the display of the electronic device. The glass panel of the screen is contacted, and the manufacturing method includes the following steps:

Anodize the metal middle frame, color the metal middle frame, and the color of the colored metal middle frame is the second color;

Performing ink masking on at least the second part of the surface;

Laser engraving the surface of the first part;

The first part after laser engraving is anodized, the first part is colored, the color of the colored first part is the first color, and the appearance color of the part of the glass panel in contact with the first part is A first color, the first color and the second color are different;

The ink on the surface of the second part is removed.
A casing, characterized in that the casing is made by the method for manufacturing the casing of an electronic device according to any one of claims 1-16.
An electronic device, characterized in that the electronic device comprises the housing as claimed in claim 17.