CN109591302B

CN109591302B - Housing, electronic device, and method for manufacturing housing

Info

Publication number: CN109591302B
Application number: CN201811384669.XA
Authority: CN
Inventors: 杨浪
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-11-20
Filing date: 2018-11-20
Publication date: 2021-04-23
Anticipated expiration: 2038-11-20
Also published as: CN109591302A

Abstract

The application relates to a shell, an electronic device and a manufacturing method of the shell, wherein the manufacturing method of the shell comprises the following steps: step a, preparing a shell-shaped object with multiple curved surfaces by adopting plate glass; step b, preparing a flexible film with ductility, and arranging an adhesive on one side of the flexible film to obtain a protective film; and c, attaching the side, provided with the adhesive, of the protective film to the outer surface of the shell, and placing the shell into a mold for molding to obtain the shell. According to the manufacturing method of the shell, the flexible film with ductility is adopted, the adhesive is arranged on the flexible film to obtain the protective film, the protective film is attached to the outer surface of the shell-shaped object, the protective film of the shell obtained by molding in the mold is attached to the outer surface of the shell-shaped object, the ductility of the flexible film enables the corners of the shell not to be warped or wrinkled, and the protective film can prevent the shell-shaped object from being damaged.

Description

Housing, electronic device, and method for manufacturing housing

Technical Field

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

Background

The protective film of the shell of the existing electronic device is not effectively attached to a multi-curved-surface glass shell, and the protective film is easy to warp and wrinkle at the corner part of the shell.

Disclosure of Invention

The embodiment of the application provides a shell, an electronic device and a manufacturing method of the shell, and aims to solve the technical problems that a protective film of the shell cannot be effectively attached to the shell and is prone to wrinkling at corners of the shell.

A method of manufacturing a housing, comprising:

step a, preparing a shell-shaped object with multiple curved surfaces by adopting plate glass;

step b, preparing a flexible film with ductility, and arranging an adhesive on one side of the flexible film to obtain a protective film;

and c, attaching the side, provided with the adhesive, of the protective film to the outer surface of the shell, and placing the shell into a mold for molding to obtain the shell.

According to the manufacturing method of the shell, the flexible film with ductility is adopted, the adhesive is arranged on the flexible film to obtain the protective film, the protective film is attached to the outer surface of the shell-shaped object, the protective film of the shell obtained by molding in the mold is attached to the outer surface of the shell-shaped object, the ductility of the flexible film enables the corners of the shell not to be warped or wrinkled, and the protective film can prevent the shell-shaped object from being damaged.

In one embodiment, step a includes any one of the following schemes:

hot bending the edge of the flat glass to obtain a shell-shaped object comprising a panel and a side wall, wherein the side wall is positioned at the edge of the panel, and the panel and the side wall are surrounded to form an accommodating space;

the method comprises the steps of forming an isolation groove on the surface of plate glass, covering an anti-etching material in the isolation groove, and etching an area surrounded by the isolation groove to obtain a shell-shaped object comprising a panel and a side wall, wherein the side wall is located at the edge of the panel, and the panel and the side wall are surrounded to form an accommodating space.

In one embodiment, the panel includes an outer panel surface, and the side wall includes an outer wall surface, including any one of the following solutions:

the outer plate surface is a plane or a curved surface;

the outer wall surface is a plane or a curved surface;

a smooth transition between the outer surface of the panel and the outer surface of the sidewall.

In one embodiment, a decorative layer is disposed on the inner surface of the shell.

In one embodiment, in the step b, a soft film with the size matched with that of the outer surface of the shell-shaped object is obtained through cutting, and a camera hole and/or a fingerprint hole are/is formed in the soft film.

In one embodiment, in step b, the adhesive is in a solid state.

In one embodiment, step c includes placing the shell with the protective film in a mold, heating, liquefying the adhesive, and vacuumizing to make the protective film fit and closely adhere to the outer surface of the shell.

In one embodiment, the thickness of the protective film is 0.01 mm-0.3 mm.

A housing produced according to the method for producing a housing according to any one of claims 1 to 8.

Above-mentioned casing, including shelly thing and protection film, the protection film is including the mantle that has the ductility, and the protection film is laminated with the surface of shelly thing, and the ductility of mantle makes the corner of casing not have to rise to stick up and fold, and the protection film can prevent that shelly thing from being damaged.

An electronic device comprising a display screen assembly and a housing made by the method of manufacturing a housing according to any of claims 1 to 8, the housing being provided on a side of the display screen assembly facing away from a displayable region.

Above-mentioned electronic device's casing, including shelly thing and protection film, the protection film is including the mantle that has the ductility, and the protection film is laminated with the surface of shelly thing, and the ductility of mantle makes the corner of casing not have and rises to stick up and the fold, and the protection film can prevent that shelly thing from receiving the damage, and then can effectively protect electronic device.

Drawings

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

FIG. 1 is a rear view of an electronic device according to an embodiment;

FIG. 2 is a perspective view of a housing of the electronic device shown in FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of the electronic device shown in FIG. 1;

FIG. 4 is an enlarged view of section C of the structure shown in FIG. 3;

FIG. 5 is an exploded view of the housing of FIG. 2;

FIG. 6 is a schematic view of the flexible membrane of the protective case of the shell of FIG. 5, wherein the flexible membrane is not attached to the shell;

fig. 7 is a flow chart of a method of manufacturing the housing shown in fig. 2.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

As used herein, "terminal device" refers to a device capable of receiving and/or transmitting communication signals including, but not limited to, devices connected via any one or more of the following connections:

(1) via wireline connections, such as via Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connections;

(2) via a Wireless interface means such as a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter.

A terminal device arranged to communicate over a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:

(1) satellite or cellular telephones;

(2) personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities;

(3) radiotelephones, pagers, internet/intranet access, Web browsers, notebooks, calendars, Personal Digital Assistants (PDAs) equipped with Global Positioning System (GPS) receivers;

(4) conventional laptop and/or palmtop receivers;

(5) conventional laptop and/or palmtop radiotelephone transceivers, and the like.

Referring to fig. 1 to 3, in an embodiment, the electronic device 10 is a mobile phone, and the electronic device 10 includes a housing 100 and a display screen assembly 300, where the housing 100 serves as a rear case of the electronic device 10. In other alternative embodiments, the housing 100 may be a cover plate of the display screen assembly 300 in the electronic device 10. In the following description, the case 100 is described as an example of a rear case of a cellular phone.

In one embodiment, the housing 100 includes a shell 110 and a protective film 120 adhered to an outer surface of the shell 110. The shell 110 is a transparent structure formed of glass or optical ceramic, and includes a panel 111 and a sidewall 112. The side wall 112 is formed by extending the edges of the panel 111 such that the shell 110 has an open box shape. The thickness of the sidewall 112 may be greater than the thickness of the panel 111, or may be less than or equal to the thickness of the panel 111, and is not limited herein.

Specifically, as shown in fig. 4, the panel 111 includes an outer panel surface and an inner panel surface that are opposite to each other. The side wall 112 includes an outer wall surface and an inner wall surface that are oppositely disposed. The outer wall surface is connected to the outer plate surface to form the outer surface of the shell 110; the inner wall surface is connected to the inner plate surface to form the inner surface of the shell 110.

As shown in fig. 4, in one embodiment, there is a smooth transition between the panel 111 and the sidewall 112. It is understood that there is a smooth transition between the outer wall surface and the outer plate surface. Can avoid the edge of panel 111 to appear the edges and corners like this, guarantee the smoothness nature of lateral wall 112 and panel 111 corner, make from the outside of shell 110 when inside watching, lateral wall 112 and panel 111 visual effect are better, and promote user's feeling.

In one embodiment, the panel 111 and the sidewall 112 are perpendicular. It is understood that the outer wall surface is perpendicular to the outer panel surface, and there is no limitation between the inner panel surface and the inner wall surface, i.e., the inner panel surface and the inner wall surface may be perpendicular or at an obtuse angle. In another embodiment, the panel 111 and the sidewall 112 are at an obtuse angle. It is understood that the outer wall surface and the outer wall surface form an obtuse angle, and the inner wall surface are not limited, i.e., the inner wall surface and the inner wall surface may form an obtuse angle or a vertical angle.

In one embodiment, the panel 111 is a flat plate. In another embodiment, the panel 111 is curved, that is, the outer panel surface is curved, the inner panel surface is the same as the outer panel surface, and the outer panel surface is parallel to the inner panel surface. In other embodiments, the panel 111 is curved in an arc shape, and it can be understood that the outer panel surface is curved in an arc shape, the inner panel surface is a plane, and the thickness of the panel 111 is the largest at the longitudinal center axis and the smallest at both sides. The curved outer plate surface of the panel 111 and the smoothly transitioned corners at both sides of the shell 110 together make the entire upper surface of the shell 110 in a curved shape, so that the whole is smooth, and the shell 110 is more beautiful in appearance and has better hand feeling.

In one embodiment, the sidewall 112 is a flat plate, the outer wall surface and the inner wall surface are both flat, and the thickness of the sidewall 112 is uniform. In another embodiment, the sidewall 112 is a flat plate, and the outer wall surface and the inner wall surface are both flat, but the thickness of the sidewall 112 is not uniform, and the thickness of the sidewall 112 increases in a direction away from the panel 111. In another embodiment, the sidewall 112 is a curved plate 111, and the outer wall surface is a curved surface, so that the entire space between the outer wall surface and the outer plate surface is smooth, and the shell 110 has a more beautiful appearance and better hand feeling. The thickness of the side wall 112 gradually increases from the panel 111 to the end of the side wall 112, so that the thickness difference between the panel 111 and the side wall 112 is increased, the stereoscopic impression of the shell 110 is increased, and the aesthetic feeling of the shell 110 is improved. In other embodiments, the sidewall 112 is a curved plate 111, or the outer wall surface may be a plane, and the inner sidewall 112 may be a curved surface.

In one embodiment, the outer plate surface is a plane, the outer wall surface is a plane or a curved surface, the outer plate surface and the outer wall surface are smoothly transited, and the shell 110 has a structure with a multi-curved surface on the outer surface. In another embodiment, the outer plate surface is a curved surface, the outer wall surface is a plane or a curved surface, the outer plate surface and the outer wall surface are smoothly transited, and the shell 110 has a structure with a multi-curved outer surface. In another embodiment, one of the outer plate surface and the outer wall surface is a multi-plane structure, and the adjacent planes have intersecting edges, so that the outer plate surface and the outer wall surface are smoothly transited, thereby increasing the interest of the shell 110 and enabling the shell 110 to have a cool and dazzling effect.

As shown in fig. 2 and fig. 3, in an embodiment, the side walls 112 are located around the panel 111, that is, the two long sides and the two short sides of the panel 111 are provided with the side walls 112, so as to form an accommodating space for the shell 110. When the mobile phone is assembled by using the shell 110, the battery (not shown), the main board (not shown), the display screen assembly 300 and other components of the mobile phone can be placed in the accommodating space of the shell 110, and a middle frame does not need to be separately arranged. By making the shell 110 have a suitable depth, it is ensured that components such as a battery, a main board, and a display screen assembly 300 of the mobile phone can be accommodated. The display panel assembly 300 is smoothly abutted with the side wall 112, and the shell 110 is located on a side of the display panel assembly 300 facing away from the displayable region.

In one embodiment, the inner surface of shell 110 is covered with a decorative layer. In one embodiment, a film may be formed on the inner surface of the shell 110 by evaporation to serve as a decoration layer, and in other alternative embodiments, an ink may be sprayed on the inner surface of the shell 110, or a film may be adhered to the inner surface of the shell 110 to form a decoration layer. If the decorative layer is black, the inner structure of the mobile phone is prevented from being seen through the shell 110, and the side wall 112 and the panel 111 have a more integrated visual effect. Certainly, the decorative layer can also be provided with patterns to enhance the aesthetic property of the mobile phone rear shell.

As shown in fig. 3 to 5, in an embodiment, the protective film 120 is a transparent structure and is adhered to the outer surface of the shell 110, so as not to block the display of the decorative layer on the inner surface of the shell 110. The protective film 120 includes a soft film 121 and an adhesive disposed on a side of the soft film 121 facing the shell 110. The soft film 121 is malleable and can change shape with the force, and after the force disappears, the soft film 121 can return to the original state. In one embodiment, the soft membrane 121 is made of PO material. In another embodiment, the soft film 121 may be another transparent material having extensibility. The flexible film 121 is adhered to the outer surface of the shell 110 by an adhesive and is not detachable. The malleable characteristic of the soft film 121 is such that the protective film 120 does not wrinkle or warp at the four corners of the shell 110, i.e., the protective film 120 completely conforms to the outer surface of the shell 110. The thickness of the protective film 120 is 0.01mm to 0.3mm, preferably 0.1mm, which can protect the shell 110 and prevent the shell 110 from being damaged.

As shown in fig. 7, in an embodiment, a method for manufacturing a housing 100 includes:

step a, preparing a shell-shaped object 110 with multiple curved surfaces by adopting plate glass;

step b, preparing a flexible film 121 with ductility, and arranging an adhesive on one side of the flexible film 121 to obtain a protective film 120; and

and c, attaching the side, provided with the adhesive, of the protective film 120 to the outer surface of the shell 110, and placing the shell into a mold to be molded to obtain the shell 100.

In one embodiment, in step a, shell 110 is made by hot bending flat glass. A thicker plate glass is selected and machined by a numerical control machine (CNC) according to the size of the housing 100. The heat bending line is determined according to the size of the case 100 on the plate glass, the size of the portion inside the heat bending line is the same as that of the panel 111, and the portion outside the heat bending line is processed into the side wall 112. The glass has a hot bending temperature of 630-730 ℃, and it is understood that the hot bending temperature varies correspondingly according to the type, thickness and other conditions of the glass, and may exceed the range of 630-730 ℃. Heating the plate glass to a hot bending temperature, and hot bending the plate glass according to the position of a hot bending line to obtain a glass main body, wherein the inner surface of the glass main body is the same as the inner surface of the shell 100, and it can be understood that the hot bending process in the step a directly processes the inner surface of the shell 110 in place to form an inner plate surface and an inner wall surface, and the subsequent process does not need to further process the inner surface of the glass main body in size. The outer surface of the glass body is CNC cut to give the panel 111 and the side wall 112. The article is polished to provide a shell 110 having a smooth and clear appearance. A film may be formed on the inner surface of the shell 110 by evaporation to serve as a decoration layer, and in other alternative embodiments, an ink may be sprayed on the inner surface of the shell 110, or a film may be adhered to the inner surface of the shell 110 to form a decoration layer. If the decorative layer is black, the inner structure of the mobile phone is prevented from being seen through the shell 110, and the side wall 112 and the panel 111 have a more integrated visual effect. Certainly, the decorative layer can also be provided with patterns to enhance the aesthetic property of the mobile phone rear shell.

In another embodiment, in step a, shell 110 is prepared by etching. An isolation groove is arranged on the surface of the plate glass, and an etching-proof material is covered in the isolation groove. The isolation groove encloses the middle area of the plate glass, the area enclosed by the isolation groove can be processed into a panel 111, and the area of the area is smaller than the area of the inner surface of the panel 111; the regions outside the isolation trenches are machined into sidewalls 112. The etch-resistant material may be an ink or a melted paraffin. The isolation groove is covered with an etching-proof material, so that the glass outside the isolation groove can be prevented from being etched. And uniformly spraying the etching solution to the area surrounded by the isolation groove of the plate glass, which is also the area surrounded by the etching-resistant material. The area surrounded by the isolation groove is in contact with the liquid level of the etching solution, and the etching time is determined according to the etching depth and the concentration of the etching solution, so that the middle part of the plate glass is of a groove structure, and the glass main body is obtained. And soaking the glass main body in the photoresist removing solution, taking out the glass main body after a proper time, and stripping the etching-proof material 300 on the glass main body. The glass body is further processed to obtain shell 110 having a desired size.

As shown in fig. 6, in step b, a PO material or other malleable and transparent material is selected as the soft film 121, and the soft film 121 is cut to fit the outer surface of the shell 110, and the soft film 121 is provided with a camera hole 122 and/or a fingerprint hole 123, which are cut according to the requirements of the shell 100. A solid adhesive is fixed on one side of the soft film 121 to obtain the protective film 120.

In one embodiment, in step c, the side of the protective film 120 provided with the solid adhesive is attached to the outer surface of the shell 110. The protective film 120 and the shell 110 are placed in a mold together, the adhesive is liquefied by heating, meanwhile, the protective film 120 is tightly attached to the outer surface of the shell 110 by vacuumizing, the protective film 120 is changed from a plane to a curved surface of a shell structure, the shape of the protective film 120 is changed, the liquefied adhesive is tightly attached to the outer surface of the shell 110, a non-detachable structure is formed, and the soft film 121 is prevented from rebounding. The protective film 120 forms the case 100 together with the shell 110. The solid adhesive is heated to be liquid, and is tightly adhered to the outer surface of the shell 110, so that air bubbles between the protective film 120 and the shell 110 can be discharged by vacuumizing. If a liquid adhesive is directly adopted, the protective film 120 is placed on the outer surface of the shell 110 before being placed in the mold, and the liquid adhesive enables the protective film 120 to be bonded with the shell 110, so that even if the protective film is placed in the mold and then vacuumized, the discharge of air bubbles between the protective film 120 and the shell 110 is not facilitated, and the bonding between the protective film 120 and the shell 110 is not facilitated.

The protective film 120 can be attached to the shell 110 with a complex curved surface, and can be effectively attached to the corner of the shell 110 without generating wrinkles or warping, so that the shell 110 can be effectively protected in the process of falling or collision, and the electronic device 10 can be further protected.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A method of manufacturing a housing, comprising:

step a, preparing a shell-shaped object with multiple curved surfaces by adopting plate glass, wherein the shell-shaped object comprises a panel and a side wall, the panel comprises an outer panel surface, the side wall comprises an outer wall surface, one of the outer panel surface and the outer wall surface is of a multi-plane structure, and intersecting edges exist between adjacent planes; the inner surface of the shell-shaped object is provided with a decorative layer;

step b, preparing a flexible film with ductility, and arranging an adhesive on one side of the flexible film to obtain a protective film; and

and c, attaching one side of the protective film provided with the adhesive to the outer surface of the shell-shaped object and covering the panel and the corner of the side wall, and placing the protective film into a mold to obtain the shell.

2. The method for manufacturing the shell according to claim 1, wherein the step a comprises any one of the following schemes:

hot bending the edge of the flat glass to obtain the shell-shaped object, wherein the side wall is positioned at the edge of the panel, and the panel and the side wall are surrounded to form an accommodating space;

the method comprises the steps of forming an isolation groove on the surface of the plate glass, covering an anti-etching material in the isolation groove, and etching an area surrounded by the isolation groove to obtain the shell-shaped object, wherein the side wall is located at the edge of the panel, and the panel and the side wall are surrounded to form an accommodating space.

3. The method of manufacturing a housing according to claim 2,

the outer plate surface and the outer wall surface are in smooth transition.

4. A method of manufacturing a casing as claimed in claim 1, wherein a decorative layer is provided on an inner surface of the shell.

5. The method for manufacturing the shell according to claim 1, wherein in the step b, a soft film with a size matched with that of the outer surface of the shell is obtained by cutting, and a camera hole and/or a fingerprint hole is formed in the soft film.

6. The method for manufacturing a housing according to claim 1, wherein in step b, the adhesive is in a solid state.

7. The method of claim 1, wherein the step c comprises placing the shell with the protective film in a mold, heating, liquefying the adhesive, and vacuumizing to make the protective film conform to the outer surface of the shell.

8. The method of manufacturing a housing according to claim 1, wherein the thickness of the protective film is 0.01mm to 0.3 mm.

9. A housing, characterized in that it is manufactured according to the method of manufacturing a housing according to any one of claims 1-8.

10. An electronic device, characterized in that the electronic device comprises a display screen assembly and a housing made by the method of manufacturing a housing according to any one of claims 1 to 8, the housing being arranged on a side of the display screen assembly facing away from a displayable area.