CN113811122B - Housing, preparation method and electronic device - Google Patents

Abstract

The application provides a shell, a preparation method thereof and electronic equipment. The housing of the present application includes a body portion including a first surface; and the side part is arranged around the outer periphery of the main body part, the side part is connected with the main body part in a bending way and is of an integral structure, the main body part and the side part enclose into a containing space, the first surface faces the containing space, the side part comprises a second surface, the second surface surrounds the containing space, and the angle between the first surface and the second surface ranges from 40 degrees to 90 degrees. The shell of the application can integrate the front cover with the middle frame or the rear cover with the middle frame when being applied to electronic equipment.

Description

Housing, preparation method and electronic device

Technical field

The present application relates to the field of electronics, and specifically to a housing, its preparation method and electronic equipment.

Background technique

With the development of technology and the improvement of living standards, people have put forward higher requirements for the appearance and visual effects of electronic equipment. Currently, it is difficult for the casing of electronic equipment (such as glass front cover or glass back cover) to bend at an angle exceeding Bending at a large angle of 90°, therefore, the front cover, middle frame and back cover of electronic equipment are usually prepared separately. When assembled together, it is difficult to integrate the front cover and middle frame, or the back cover and middle frame. change.

Contents of the invention

To address the above problems, embodiments of the present application provide a housing that, when used in electronic equipment, can integrate the front cover and the middle frame or the back cover and the middle frame.

The embodiment of the present application provides a housing, which includes:

a body portion including a first surface; and

The side portion is arranged around the outer periphery of the main body portion. The side portion is bent and connected with the main body portion and is an integral structure. The main body portion and the side portion enclose an accommodation space. The first surface faces the accommodation space, the side portion includes a second surface, the second surface surrounds the accommodation space, and the angle between the first surface and the second surface ranges from 40° to 90°.

In addition, the embodiment of the present application also provides a method for preparing a shell, which includes:

Preparing an embryo body, the embryo body having through holes; and

The embryo body is placed in a blow mold, gas is introduced into the through hole, and blow molding is performed, so that the embryo body forms a main body and side parts that are bent and connected and have an integrated structure. The main body part includes a first surface; the side part is arranged around the outer periphery of the main body part, the main body part and the side part enclose an accommodation space, the first surface faces the accommodation space, and the The side portion includes a second surface surrounding the accommodation space, and an angle between the first surface and the second surface ranges from 40° to 90°, thereby obtaining the housing.

In addition, an embodiment of this application provides an electronic device, which includes:

Display component, used for display;

The housing according to the embodiment of the present application, the housing has an accommodation space, and the housing is used to carry the display component; and

A circuit board assembly is provided in the accommodation space and is electrically connected to the display assembly for controlling the display assembly to display.

The angle between the first surface of the main part and the second surface of the side part of the case of the embodiment of the present application ranges from 40° to 90°. When used as a front cover or a back cover of an electronic device, it can be integrated with the middle frame. design, the front cover and the middle frame are integrated, or the back cover and the middle frame are integrated, and when used, there is no gap between the shell and the back cover, or the shell and the front cover, which can make the appearance of the electronic device more beautiful. For aesthetics, better sealing and waterproof performance. In addition, when the front cover and the middle frame are integrated, electronic devices can also be used for side screen display.

Description of the drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic top structural view of a housing according to an embodiment of the present application.

FIG. 2 is a cross-sectional view of the housing along the direction A-A in FIG. 1 according to an embodiment of the present application.

FIG. 3 is a cross-sectional view of the housing along the direction A-A in FIG. 1 according to another embodiment of the present application.

Figure 4 is a schematic top structural view of a housing according to yet another embodiment of the present application.

FIG. 5 is a cross-sectional view (a) along the A-A direction and a cross-sectional view (b) along the B-B direction of the housing of the embodiment of FIG. 1 of the present application.

Figure 6 is a schematic top structural view of a housing according to yet another embodiment of the present application.

FIG. 7 is a cross-sectional view (a) along the A-A direction and a cross-sectional view (b) along the B-B direction of the housing of the embodiment of FIG. 6 of the present application.

FIG. 8 is a partial cross-sectional view of the housing along the direction A-A in FIG. 1 according to another embodiment of the present application.

FIG. 9 is a partial cross-sectional view of the housing along the direction A-A in FIG. 1 according to yet another embodiment of the present application.

FIG. 10 is a schematic flowchart of a method for manufacturing a casing according to an embodiment of the present application.

Figure 11 is a schematic structural diagram of an embryonic body according to an embodiment of the present application.

Figure 12 is a schematic structural diagram of an embryo body according to another embodiment of the present application.

Figure 13 is a cross-sectional view along the C-C direction in the embodiment of Figure 12 of the present application.

Figure 14 is a rotary body shell produced by a shell preparation method according to an embodiment of the present application.

Figure 15 is a schematic structural diagram of a blow mold according to an embodiment of the present application.

Figure 16 is a schematic structural diagram of the embryo body being placed in a blow mold according to an embodiment of the present application.

Figure 17 is a schematic cross-sectional structural diagram of the first sub-mold or the second sub-mold along the D-D direction in Figure 16 according to an embodiment of the present application.

Figure 18 is a schematic flowchart of a method for manufacturing a casing according to another embodiment of the present application.

Figure 19 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Figure 20 is a schematic diagram of a partially exploded structure of an electronic device according to an embodiment of the present application.

Figure 21 is a circuit block diagram of an electronic device according to an embodiment of the present application.

Explanation of reference symbols:

100-Housing 1301-Bending part

101-accommodation space 1303-straight part

10-Casing body 30-First light shielding part

11-Main part 50-Decoration part

111-First surface 70-Second light shielding part

113-Third surface 300-Embryo body

13-Side 301-Through hole

131-Second Surface 310-Part One

133-Curved Surface 311-First Subpart

135-End face 312-Second subpart

137-Fourth Surface 313-Third Subpart

139-Curved surface 314-Fourth subpart

132-The first sub-side 330-The second part

134-Second sub-side 331-Fifth sub-part

136-Third sub-side 332-Sixth sub-part

138-Fourth side 330’-cylinder

400-Blow mold 430-Second sub-mold

401-Mold cavity 431-Second mold surface

403-Cooling channel 600-Electronic equipment

410-First sub-mold 610-Display component

411-First mold surface 630-Circuit board assembly

4111-First sub-mold surface 631-Processor

4112-Second sub-mold surface 633-Memory

4113-The third sub-mold surface

Detailed ways

In order to enable those in the technical field to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only These are part of the embodiments of this application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

The terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than describing a specific sequence. Furthermore, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes Other steps or units inherent to such processes, methods, products or devices.

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

It should be noted that, for convenience of description, in the embodiments of the present application, the same reference numerals represent the same components, and for the sake of simplicity, detailed descriptions of the same components in different embodiments are omitted.

In the related art, when an electronic device needs to prepare a casing with a 3D structure (that is, a casing that is bent on all sides, such as a front cover and a back cover), hot bending molding is usually used to form the casing with a 3D structure. However, hot bending uses a concave mold and a convex mold to press the shell base material, and bend the casing base material into a shell with a certain bending angle. In order to enable the concave mold and the convex mold to be smoothly demoulded after hot bending, The angle between the flat part and the bent part of the female mold and the punch must be less than or equal to 90°, so that the bending angle of the produced shell cannot exceed 90° (that is, the angle between the flat part and the bent part is greater than 90° °, it is impossible to achieve an undercut angle less than 90°). Currently, even if the angle between the flat part and the bending part of the concave mold and the punch is set to 90°, the limit value of the bending angle of the produced shell can only be reaches 88°. Therefore, it is difficult to apply the case where the front cover and the middle frame are integrated or the middle frame and the back cover are integrated. Even if the front cover and the middle frame are integrated or the middle frame and the back cover are integrated by hot bending, it can be used in electronic equipment. When the electronic device is installed, there is a gap between the casing and the back cover, or the casing and the front cover, which affects the appearance of the electronic device and affects the sealing and waterproofness of the entire machine.

Referring to Figures 1 to 3, an embodiment of the present application provides a housing 100, which includes: a main body 11 and a side portion 13. The main body 11 includes a first surface 111, and the side portion 13 surrounds the The outer periphery of the main body 11 is provided. The side portion 13 is bent and connected to the main body 11 and forms an integrated structure. The main body 11 and the side portion 13 enclose a receiving space 101. The first surface 111 faces the accommodation space 101, the side portion 13 includes a second surface 131, the second surface 131 surrounds the accommodation space 101, and the distance between the first surface 111 and the second surface 131 is The angle α (shown in Figure 2) ranges from 40° to 90°.

It should be understood that the angle α between the first surface 111 and the second surface 131 can be any value between 40° and 90°. Specifically, it can be, but is not limited to, 40° or 45°. , 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, 90°, etc. When the angle α between the first surface 111 and the second surface 131 is less than 40°, when the housing 100 is applied to electronic equipment, the difficulty of the assembly process of the housing 100 will be increased.

It should be noted that the angle α between the first surface 111 and the second surface 131 ranges from 40° to 90°, which can be understood as the bending angle of the second surface 131 compared to the first surface 111 is 90° to 140°. The angle α between the first surface 111 and the second surface 131 refers to the angle between a plane perpendicular to the first surface 111 and the intersection line of the first surface 111 and the second surface 131 .

It should be noted that the side part 13 and the main part 11 have an integrated structure. The side part 13 and the main part 11 may be formed in the same process; or the side part 13 and the main part 11 may be formed in the same step; or the side part 13 and the main part 11 may be formed in the same process. There is no phase interface between the parts 11 .

The housing 100 of the present application can be applied to portable electronic devices such as mobile phones, tablets, laptops, desktop computers, smart bracelets, smart watches, e-readers, and game consoles. Optionally, the housing 100 in the embodiment of the present application has a 3D structure. The main part 11 of the housing 100 in the embodiment of the present application can be used as the front cover or the back cover of the electronic device, and the side part 13 can be used as the middle frame of the electronic device.

In the embodiment of the present application, the angle between the first surface 111 of the main body 11 and the second surface 131 of the side part 13 of the housing 100 ranges from 40° to 90°. When used as a front cover or a back cover of an electronic device, it can be Integrated design with the middle frame, front cover and middle frame, or back cover and middle frame, and when in use, there is no gap between the housing 100 and the back cover, or the housing 100 and the front cover, so It can make the appearance of electronic equipment more beautiful, with better sealing and waterproof performance. In addition, when the front cover and the middle frame are integrated, electronic devices can also be used for side screen display.

In some embodiments, the material of the housing 100 may be, but is not limited to, one or more of inorganic glass or resin. Alternatively, the resin may be one or more of polymethylmethacrylate (PMMA), polycarbonate (PC), polyethylene terephthalate (PET), and the like. Optionally, the housing 100 is light-transmissive, and the light transmittance of the housing 100 can be greater than or equal to 85%. Further, the light transmittance of the housing 100 can be greater than or equal to 90%; specifically, the light transmittance of the housing 100 can be greater than or equal to 90%. The light transmittance may be, but is not limited to, 85%, 88%, 90%, 93%, 95%, 97%, 98%, 99%, etc. When the housing 100 is applied to the front cover and middle frame of an electronic device, the higher the light transmittance of the housing 100, the better. The higher the light transmittance, the better the display effect of the electronic device.

Optionally, the housing 100 is a blow-molded housing. In other words, the housing 100 is made by first melting and extruding the material for preparing the housing 100, such as an inorganic glass plate, to obtain the embryonic body 300. The embryo body 300 is then blow molded. It can be understood that the main body part 11 and the side part 13 are both obtained by blow molding on the embryo body 300 . The preparation method of the housing 100 will be described in detail below through specific embodiments.

Please refer to FIG. 2 and FIG. 3 again. In some embodiments, the main body part 11 further includes a third surface 113 , and the third surface 113 is arranged opposite to the first surface 111 . The thickness of the main body part 11 is uniform, and the thickness of the main body part 11 is 0.3 mm to 1 mm; in other words, the first surface 111 and the third surface 113 are parallel, and the first surface 111 and the third surface The vertical distance between 113 is 0.3mm to 1mm. Specifically, the thickness of the main body part 11 may be, but is not limited to, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, etc. When the main body 11 is too thin, it cannot provide good support and protection, and the mechanical strength cannot well meet the requirements of the electronic device housing 100. When the main body 11 is too thick, the weight of the electronic device is increased. , affecting the feel of electronic devices and causing poor user experience.

Please refer to Figures 2 and 3 again. In some embodiments, the side portion 13 includes a curved surface 133 facing the accommodating space 101, and the opposite ends of the curved surface 133 are respectively in contact with the accommodating space 101. The first surface 111 and the second surface 131 are connected, and the curvature radius of the curved surface 133 is 1 mm to 10 mm; specifically, it can be but is not limited to 1 mm, 2 mm, 4 mm, 5 mm, 6 mm, 8 mm, or 9 mm. , 10mm, etc. Optionally, the curved surface 133 may be a circular arc surface, an elliptical arc surface, etc. The curvature radius of the curved surface 133 is large, and the undercut effect of the side part 13 is not obvious compared with the main part 11; the curvature radius of the curved surface 133 is too small, and it will be more difficult to fit the housing to the electronic device, such as the screen of the electronic device.

It can be understood that the first surface 111 , the curved surface 133 and the second surface 131 are connected in sequence, and the first surface 111 , the curved surface 133 and the second surface 131 enclose the accommodation space 101 .

Please refer to Figures 2 and 3 again. In some embodiments, the side portion 13 further includes an end surface 135. The end surface 135 is connected to an end of the second surface 131 away from the curved surface 133. The end surface 135 is located One end of the side portion 13 is away from the main body portion 11 , and the end surface 135 is parallel to the first surface 111 . When the end surface 135 is parallel to the first surface 111, it facilitates subsequent computer numerical control precision machining (CNC machining) and facilitates the subsequent formation of a decorative portion (such as silk screen mirror silver) on the end surface 135.

Optionally, the side portion 13 further includes a fourth surface 137 and an arcuate surface 139. The fourth surface 137 and the arcuate surface 139 are both located on the surface of the side portion 13 away from the accommodation space 101, so The fourth surface 137 is connected to one end of the end surface 135 away from the second surface 131 , and the opposite ends of the arcuate surface 139 are connected to the third surface 113 and the fourth surface 137 respectively. The fourth surface 137 is a plane, and the arc surface 139 can be a circular arc surface 139, an elliptical arc surface 139, etc. It can be understood that the curved surface 133 , the second surface 131 , the end surface 135 , the fourth surface 137 and the arcuate surface 139 are connected in sequence to form the surface of the side portion 13 .

In some embodiments, the angle β between the fourth surface 137 and the third surface 113 may be 40° to 90°; specifically, it may be, but is not limited to, 40°, 45°, 50°, 55°, or 60°. , 65°, 70°, 75°, 80°, 85°, 90°, etc. In other embodiments, the angle β between the fourth surface 137 and the third surface 113 may also be greater than 90°. Compared with the angle β between the fourth surface 137 and the third surface 113 being greater than 90°, when the angle β between the fourth surface 137 and the third surface 113 is 40° to 90°, that is, the angle β between the fourth surface 137 and the third surface 113 is greater than 90°. When the bending angle of the three surfaces 113 is greater than or equal to 90° (ranging from 90° to 140°), the fourth surface 137 is bent further toward the main body 11 , so that the resulting housing 100 extends along the main body 11 direction has a smaller width. The angle β and the angle α may or may not be equal. When the angle β and the angle α are equal, the manufacturing process of the housing 100 can be further simplified.

Optionally, the radius of curvature of the arc surface 139 is 1 mm to 10 mm; specifically, it may be but is not limited to 1 mm, 2 mm, 4 mm, 5 mm, 6 mm, 8 mm, 9 mm, 10 mm, etc. The curvature radii of the arc surface 139 and the curved surface 133 may be the same or different, and are not specifically limited in this application. The curvature radius of the arcuate surface 139 is large, and the undercut effect of the side portion 13 is not obvious compared with the main body portion 11; the curvature radius of the arcuate surface 139 is too small, and it will be more difficult to fit the housing to the electronic device, such as the screen of the electronic device.

In some embodiments, the thickness of at least part of the end of the side portion 13 away from the main body portion 11 is greater than the thickness of the end of the side portion 13 connecting to the main body portion 11 . This allows the side portion 13 of the housing 100 to have a crystal clear visual effect. Compared with resin material, when the housing 100 is made of inorganic glass, the crystal clear visual effect of the side portion 13 of the housing 100 is better. In addition, when the casing 100 is applied to an electronic device, the side portion 13 serves as the middle frame of the electronic device. Usually when the electronic device is dropped or collided, the middle frame is most likely to be hit. At least part of the side portion 13 is away from the middle frame. The thickness of one end of the main body part 11 is greater than the thickness of one end of the side part 13 connected to the main body part 11 , so that the manufactured housing 100 has better mechanical strength and is less likely to be damaged when hit.

Please refer to Figure 1, Figure 4 and Figure 5 together. In some embodiments, the side portion 13 includes a first sub-side portion 132, a second sub-side portion 134, a third sub-side portion 136 and a first sub-side portion 132 connected end to end. The thickness of the fourth sub-side part 138 , the second sub-side part 134 and the fourth sub-side part 138 is equal to the thickness of the main body part 11 , and the first sub-side part 132 is away from the main body part 11 The thickness of one end of the third sub-side portion 136 is greater than the thickness of the end of the side portion 13 connected to the main body portion 11; and the thickness of the end of the third sub-side portion 136 away from the main body portion 11 is greater than the thickness of the side portion 13 connected to the main body. The thickness of one end of part 11. This allows the first sub-side portion 132 and the third sub-side portion 136 of the housing 100 to have a crystal clear visual effect and have better mechanical strength, so that they are less likely to be damaged when hit. Optionally, the lengths of the first sub-side part 132 and the third sub-side part 136 may both be greater than the lengths of the second sub-side part 134 and the fourth sub-side part 138; The lengths of one sub-side part 132 and the third sub-side part 136 may both be greater than the lengths of the second sub-side part 134 and the fourth sub-side part 138; or the first sub-side part 132 and the second sub-side part 136 The lengths of the side portion 134, the third sub-side portion 136 and the fourth sub-side portion 138 are all equal, which is not specifically limited in this application.

Please refer to Figures 6 and 7. In other embodiments, the side portion 13 includes a first sub-side portion 132, a second sub-side portion 134, a third sub-side portion 136 and a fourth sub-side that are connected end to end. part 138. The thickness of the end of the first sub-side part 132, the second sub-side part 134, the third sub-side part 136 and the fourth sub-side part 138 away from the main body part 11 is greater than that of the first sub-side. The portion 132 , the second sub-side portion 134 , the third sub-side portion 136 and the fourth sub-side portion 138 are close to one end of the main body portion 11 . In this way, the surroundings of the housing 100 (that is, the first sub-side 132, the second sub-side 134, the third sub-side 136 and the fourth sub-side 138 of the side 13) all have a crystal clear visual effect. And it has good mechanical strength, making it less likely to be damaged when hit.

Optionally, the thickness of one end of the side portion 13 connected to the main body portion 11 is equal to the thickness of the main body portion 11 ; at least part of the thickness of the end of the side portion 13 away from the main body portion 11 is equal to the thickness of the side portion 13 . 13 The difference in thickness between one end connecting the main body 11 is 0.5mm to 2.5mm; specifically, it can be but is not limited to 0.5mm, 0.8mm, 1.0mm, 1.3mm, 1.5mm, 1.8mm, 2.0mm, 2.2mm, 2.5mm, etc. When the difference between the thickness of at least part of the end of the side portion 13 away from the main body portion 11 and the thickness of the end of the side portion 13 connecting to the main body portion 11 is less than 0.5 mm, the difference between the side portion 13 and the main body portion 11 The equal thickness effect is not obvious, and the crystal clear visual effect of the side portion 13 is not obvious when at least part of the thickness of the end of the side portion 13 away from the main body portion 11 is connected to the end of the side portion 13 connected to the main body portion 11 When the difference in thickness is greater than 2.5 mm, the produced housing 100 is too heavy, thereby increasing the weight of the electronic device using the housing 100, which is not conducive to the thinning of the electronic device.

Please refer to Figures 5, 7 and 8. In some embodiments, the thickness of at least part of the side portion 13 gradually increases from an end close to the main body portion 11 to an end far away from the main body portion 11 (as shown in Figure 8 shown). In other embodiments, the thickness of at least part of the side portion 13 gradually increases from an end close to the main body portion 11 to an end far away from the main body portion 11 , and then remains unchanged (as shown in FIG. 7 ). In a specific embodiment, the side portion 13 includes a curved portion 1301 and a straight portion 1303, and the opposite ends of the curved portion 1301 are respectively connected to the main body portion 11 and the straight portion 1303; the curved portion 1301 includes the curved surface 133 and the arc surface 139 , and the straight portion 1303 includes the first surface 111 , the end surface 135 and the second surface 131 . The thickness of the straight portion 1303 is uniform, and the thickness of at least part of the curved portion 1301 gradually increases from the end connected to the main body 11 to the end connected to the straight portion 1303 . to the thickness of the straight portion 1303. In other words, the thickness of at least part of the curved portion 1301 gradually increases from the end connected to the main body 11 to the end far away from the main body 11 from the thickness of the main body 11 to the thickness of the straight portion 1303 .

Referring to FIG. 9 , in some embodiments, the housing 100 of the embodiment of the present application further includes a first light-shielding part 30 , a decorative part 50 and a second light-shielding part 70 . The first light-shielding portion 30 covers the second surface 131 and the curved surface 133 of the side portion 13 to block components inside the electronic device and prevent the inside of the electronic device from being visible from the side portion 13 As a component, the first light shielding part 30 is also used to make the black frame visible on the third surface 113 side of the housing 100, thereby having a good visual effect. The decorative portion 50 covers at least part of the end surface 135 of the side portion 13 . The decorative portion 50 is used to provide decorative effects of different colors to the side portion 13 of the housing 100 . The second light shielding part 70 at least covers the decorative part 50 and is at least partially overlapped with the first light shielding part 30 , and is used to shield the components inside the electronic device from entering the third surface 113 of the housing 100 . The edges are transparent and the components inside the electronic device can be seen.

It can be understood that the decorative part 50 may cover the entire end surface 135 of the side part 13 , or may only cover part of the end surface 135 of the side part 13 , for example, only when the side part 13 is thicker than the main part 11 . A decorative part 50 is provided at the position. It can also be understood that the second light-shielding portion 70 can decorate the portion 50 and part of the first light-shielding portion 30 , or can cover the entire decorative portion 50 and the entire first light-shielding portion 30 , as long as the first light-shielding portion 30 and the second light-shielding portion 70 It suffices to cooperate to prevent the side portion 13 of the housing 100 from transmitting light.

Optionally, the first light shielding part 30 may be a black photoresist layer, for example, a black negative photoresist layer. The first light-shielding part 30 can be obtained by exposure, development, hard baking and other steps of negative photoresist. In addition, the first light-shielding part 30 can also be a black ink layer, formed by black ink through printing, printing, spraying and other processes. Optionally, the width of the first light shielding part 30 may be 0.5 mm to 3 mm, specifically, but not limited to, 0.5 mm, 0.8 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, etc. If the width of the first light shielding part 30 is too small, the visual effect of the black frame formed on the outer periphery of the housing 100 is not good. If the width of the first light shielding part 30 is too large, the visual effect of the black frame formed on the outer periphery of the housing 100 is also bad. , and when used as the front cover of an electronic device, it will affect the full-screen display of the electronic device. In some embodiments, the first sub-side portion 132 and the third sub-side portion 136 are long sides, and the second sub-side portion 134 and the fourth sub-side portion 138 are short sides. In other words, the first sub-side portion 132 and the third sub-side portion 138 are short sides. The lengths of the three sub-side parts 136 are all greater than the lengths of the second sub-side part 134 and the fourth sub-side part 138 , and the width ranges of the first light shielding part 30 on the first sub-side part 132 and the third sub-side part 136 are all the same. The width of the first light-shielding portion 30 on the second sub-side portion 134 and the fourth sub-side portion 138 is both in the range of 0.5 mm to 1 mm, which can make the manufactured housing 100 have a more coordinated proportional size. , with better visual effects.

Optionally, the decorative portion 50 may be mirror silver, so that the third surface 113 side of the housing 100 can view at least part of the side portion 13 of the housing 100 to have a crystal clear visual effect of mirror silver. Optionally, the decorative part 50 may also be an ink layer with a glittering effect such as pearlescent powder, or one or more colors such as red, orange, yellow, green, blue, etc. The specific color can be selected according to the desired visual effect of the position of the decorative portion 50 on the third surface 113 side of the housing 100, and is not specifically limited in this application.

Optionally, the second light-shielding portion 70 can be a black ink layer, which is formed by black ink through printing, printing, spraying and other processes. In some embodiments, the second light-shielding part 70 also covers the first light-shielding part 30 . Optionally, the thickness of the second light-shielding portion 70 is 15 μm to 20 μm, specifically, but is not limited to, 15 μm, 16 μm, 17 μm, 19 μm, 19 μm, 20 μm, etc.

The housing 100 of the above-mentioned embodiments of the present application can be prepared by the preparation methods of the following embodiments. The preparation method of the housing 100 in the embodiment of the present application will be introduced in detail below.

In related designs, hot bending is used to prepare the housing 100 with a 3D structure. For example, when preparing the 3D glass housing 100, it is impossible to realize that the angle between the first surface 111 and the second surface 131 of the housing 100 is less than or equal to 90° (i.e. In addition to the angle between the first surface 111 and the second surface 131 of the housing 100 produced by hot bending (the minimum limit is 102°), the hot bending mold is usually made of graphite. At the melting temperature of glass, for example, between 700°C and 800°C. ℃, the surface of the hot-bending mold is easy to shed dust and stick to the surface of the housing 100. After hot-bending, it is often necessary to polish the concave surface of the housing 100 (corresponding to the first surface 111, the curved surface 133 and the convex surface of the present application). The graphite mold marks on the second surface 131) and the convex surface (corresponding to the third surface 113, the arc surface 139 and the fourth surface 137 of the present application) are removed, making the preparation process of the housing 100 more complex and increasing the cost. In addition, the glass substrates available on the market are usually of the same thickness. When it is necessary to produce a casing 100 with a 3D structure of unequal thickness (the main part 11 and the side part 13 are not unequal in thickness), the glass substrate needs to be matched to the main body first. The position of the portion 11 is first thinned, and it is easy to leave knife marks on the surface during processing, so that the surface of the produced casing 100 has knife marks. Furthermore, if the hot bending forming process is used to prepare the casing 100 with a 3D structure of unequal thickness, the complexity of the mold will be increased, thereby increasing the complexity of the hot bending forming process and increasing the preparation cost of the casing 100 .

Please refer to Figures 10 to 15 together. The embodiment of the present application also provides a method for preparing a housing 100. The housing 100 includes a main body part 11 and a side part 13 that are bent and connected. The main body part 11 and the The side portion 13 encloses an accommodation space 101. The main body portion 11 has a first surface 111 facing the accommodation space 101. The side portion 13 has a second surface 131. Two surfaces 131 face the accommodation space 101, the second surface 131 is a plane, and the angle α between the first surface 111 and the second surface 131 ranges from 40° to 90°; the method include:

S201, prepare an embryo body 300, which has a through hole 301; and

Optionally, a blank material is provided, heated to above the melting temperature, and molded using an injection molding or extrusion molding process to produce a blank body 300 with a through hole 301 .

Alternatively, the embryo can be resin granules, such as one or more of PMMA, PC or PET; it can also be a commercially available inorganic glass plate, such as Panda-1681 from Sichuan Xuhong Optoelectronics Technology Co., Ltd. The strain point is 550°C and the softening point is 770°C.

In a specific embodiment, the blank material is an inorganic glass plate. The inorganic glass plate is heated to 850°C to 900°C to melt the inorganic glass plate into a molten liquid. A machine head with a die and a core die is used for extrusion. After forming, the embryo body 300 is obtained. If the heating temperature is too low, the inorganic glass plate cannot be completely melted. If the temperature is too high, the mold is required to have higher temperature resistance, or the mold material cannot withstand the corresponding temperature.

Referring to Figure 11, optionally, the embryo body 300 includes a first part 310 and a second part 330, and the thickness of the first part 310 is greater than the thickness of the second part 330; after blow molding, the The first part 310 forms at least part of the side part 13 , and the second part 330 at least forms the main body part 11 . In this way, the thickness of at least part of the end of the side portion 13 away from the main body portion 11 of the manufactured housing 100 can be greater than the thickness of the end of the side portion 13 connecting to the main body portion 11 . As a result, at least part of the side portion 13 of the housing 100 has a crystal clear visual effect, has better mechanical strength, and is less likely to be damaged when hit.

Please refer to Figure 11. In some embodiments, the first part 310 includes a first sub-part 311 and a second sub-part 312, and the first sub-part 311 and the second sub-part 312 are respectively disposed on the second The through hole 301 penetrates the first sub-part 311, the second part 330 and the second sub-part 312 in sequence at opposite ends of the part 330. The thickness of the first sub-part 311 and the second sub-part 312 is uniform. Greater than the thickness of the second part 330, the side part 13 includes a first sub-side part 132, a second sub-side part 134, a third sub-side part 136 and a fourth sub-side part 138 connected end to end in order. After molding, the first sub-part 311 forms the first sub-side part 132 and the second sub-part 312 forms the third sub-side part 136; the second part 330 forms the main body part 11 And the second sub-side part 134 and the fourth sub-side part 138; wherein, the thickness of the end of the first sub-side part 132 away from the main body part 11 is greater than the thickness of the side part 13 connecting the main body part. and the thickness of one end of the third sub-side portion 136 away from the main body portion 11 is greater than the thickness of one end of the side portion 13 connecting to the main body portion 11 . This allows the first sub-side portion 132 and the third sub-side portion 136 of the housing 100 to have a crystal clear visual effect and have better mechanical strength, so that they are less likely to be damaged when hit.

Please refer to Figures 12 and 13. In other embodiments, the first part 310 includes a first sub-part 311, a second sub-part 312, a third sub-part 313 and a fourth sub-part 314. The second The part 330 includes a fifth sub-part 331 and a sixth sub-part 332. The third sub-part 313, the fifth sub-part 331, the fourth sub-part 314 and the sixth sub-part 332 are connected end to end in order to form the cylinder 330'. The first sub-part 311 and the second sub-part 312 are respectively provided at opposite ends of the cylinder 330', and the through hole 301 penetrates the first sub-part 311, the cylinder 330' and the second sub-portion 330'. Sub-part 312; the thickness of the first sub-part 311, the third sub-part 313, the second sub-part 312 and the fourth sub-part 314 are all greater than the thickness of the fifth sub-part 331 and are all greater than the thickness of the sixth sub-part 312. The thickness of the part 332; the side part 13 includes a first sub-side part 132, a second sub-side part 134, a third sub-side part 136 and a fourth sub-side part 138 connected end to end in sequence. After blow molding, the The first sub-part 311 forms the first sub-side part 132, the third sub-part 313 forms the second sub-side part 134; the second sub-part 312 forms the third sub-side part 136, The fourth sub-part 314 forms the fourth sub-side part 138; the second part 330 forms the main body part 11; the first sub-side part 132, the second sub-side part 134 and the third sub-side part The thickness of the end of the portion 136 and the fourth sub-side portion 138 away from the main body portion 11 is greater than that of the first sub-side portion 132 , the second sub-side portion 134 , the third sub-side portion 136 and the fourth sub-side portion 138 One end close to the main body 11 . In this way, the surroundings of the housing 100 (that is, the first sub-side 132, the second sub-side 134, the third sub-side 136 and the fourth sub-side 138 of the side 13) all have a crystal clear visual effect. And it has good mechanical strength, making it less likely to be damaged when hit.

S202, the embryo body 300 is placed in the blow mold 400, gas is introduced into the through hole 301, and blow molding is performed, so that the embryo body forms the main body portion 11 that is bent, connected and has an integrated structure. and the side part 13. The main part 11 includes a first surface 111; the side part 13 is arranged around the outer periphery of the main part 11, and the main part 11 and the side part 13 enclose a receiving space 101, The first surface 111 faces the accommodating space 101. The side portion 13 includes a second surface 131. The second surface 131 surrounds the accommodating space 101. The first surface 111 is connected to the second surface 131. The angle between the surfaces 131 ranges from 40° to 90°, resulting in the housing 100 .

Optionally, put the hot embryo 300 obtained in step S201 into the blow mold 400, and use a ventilation rod (the surface of the ventilation rod is provided with uniform ventilation grooves) to introduce cold air into the through hole 301 of the embryo 300. (gas) to expand the embryo body 300 until the inner wall of the blow mold 400 is squeezed around the embryo body 300. After cooling and shaping, the rotary body shell is obtained (as shown in Figure 14), and then the rotary body shell is laser-processed. Cut (laser wavelength 1064 nm) into two to obtain two shells 100 with 3D structures. Only one housing 100 can be produced at a time through hot bending molding. Therefore, the production efficiency of the housing 100 is better when blow molding is used.

Optionally, the air pressure during blow molding is 10MPA to 15MPA; specifically, it can be but is not limited to 10MPA, 11MPA, 12MPA, 13MPA, 14MPA, 15MPA, etc. When the air pressure is too small (less than 10Mpa) during blow molding, the shell 100 is difficult to mold; when the air pressure is too high (more than 15Mpa) during blow molding, it is easy to cause damage to the third surface 131 (near the blow mold 400) of the produced shell 100. Excessive burrs are generated on the surfaces of the first mold surface 411 and the second mold surface 431).

Optionally, the blow mold 400 is made of steel, such as OCr25Ni20 mold steel. Compared with using graphite, steel is used as the material of the blow mold 400. Steel has better cutting characteristics and high temperature resistance. And by using steel as the blow mold 400, even after high temperature, there will be no dust sticking to the surface of the casing 100.

Referring to Figures 15 and 16, optionally, the blow mold 400 includes a first sub-mold 410 and a second sub-mold 430. The first sub-mold 410 and the second sub-mold 430 are enclosed to form a mold. Cavity 401, the mold cavity 401 is used to place the embryo body 300. In this way, by designing the structure of the internal mold cavity 401 of the first sub-mold 410 and the second sub-mold 430, the bending angle of the main body part 11 and the side part 13 of the produced housing 100 can be adjusted. In other words, the first surface can be adjusted. 111 and the second surface 131 such that the angle between the first surface 111 and the second surface 131 of the manufactured housing 100 is between 40° and 90°. This makes the entire preparation process of the housing 100 simpler and easier to implement.

Optionally, at least one of the first sub-mold 410 and the second sub-mold 430 has a cooling channel 403. The cooling channel 403 is used to pass cooling liquid, such as water, to cool the first sub-mold 410. and the second sub-mold 430 is cooled. Compared with arranging a cooling system around the mold, at least one of the first sub-mold 410 and the second sub-mold 430 is provided with a cooling channel 403, so that the blow mold 400 can be cooled down faster and has better performance. cooling effect.

Optionally, the surfaces of the first sub-mold 410 and the second sub-mold 430 located in the mold cavity 401 are mirror polished surfaces. Optionally, the first sub-mold 410 includes a first mold surface 411, and the second sub-mold 430 includes a second mold surface 431. When the first sub-mold 410 and the second sub-mold 430 are closed, the A mold surface 411 and the second mold surface 431 enclose the mold cavity 401, and both the first mold surface 411 and the second mold surface 431 are mirror polished surfaces. In this way, the third surface 113, the arc surface 139 and the fourth surface 137 of the produced housing 100 can have a better surface finish (that is, a smaller surface roughness) without leaving obvious abrasive marks. The resulting housing 100 does not require surface polishing. Even if a mirror-polished steel hot-bending mold is used to form the 3D casing 100 through hot bending, the surface of the casing 100 will be easily damaged due to the mutual extrusion of the concave mold and the convex mold on the opposite sides of the casing 100. Defects such as creases. However, the 3D structure casing 100 produced by blow molding in this application only has one surface that fits the mold, and the surface of the casing 100 formed is less likely to have defects such as creases.

Optionally, the roughness Ra of the first mold surface 411 is 50 nm to 200 nm; specifically, it may be but is not limited to 50 nm, 80 nm, 100 nm, 120 nm, 150 nm, 180 nm, 200 nm, etc. When the roughness of the first mold surface 411 is too small (less than 50 nm), the polishing time of the blow mold 400 will be increased, thereby increasing the preparation cost of the blow mold 400. When the roughness of the first mold surface 411 is too large ( When the thickness is greater than 200 nm), the surface roughness of the produced shell 100 is relatively large and cannot meet the requirements.

Optionally, the roughness Ra of the second mold surface 431 is 50 nm to 200 nm; specifically, it may be but is not limited to 50 nm, 80 nm, 100 nm, 120 nm, 150 nm, 180 nm, 200 nm, etc. When the roughness of the second mold surface 431 is too small (less than 50 nm), the polishing time of the blow mold 400 will be increased, thereby increasing the preparation cost of the blow mold 400. When the roughness of the second mold surface 431 is too large ( When the thickness is greater than 200 nm), the surface roughness of the produced shell 100 is relatively large and cannot meet the requirements.

Referring to FIG. 17 , in some embodiments, the first mold surface 411 and the second mold surface 431 have the same structure. The first mold surface 411 is taken as an example for detailed description below. The first mold surface 411 includes a first sub-mold surface 4111, a second sub-mold surface 4112 and a third sub-mold surface 4113 connected in sequence. The second sub-mold surface 4112 surrounds the outer periphery of the first sub-mold surface 4111. The third sub-mold surface 4113 is arranged around the outer circumference of the second sub-mold surface 4112, and the range of the angle γ between the first sub-mold surface 4111 and the third sub-mold surface 4113 is 40°. to 90°, so that when the first sub-mold 410 and the second sub-mold 430 are used to blow mold the embryonic body 300, the angle α between the first surface 111 and the second surface 131 of the shell 100 is obtained. at 40° to 90°. Specifically, the angle γ between the first sub-mold surface 4111 and the third sub-mold surface 4113 may be, but is not limited to, 40°, 45°, 50°, 55°, 60°, 65°, 70 °, 75°, 80°, 85°, 90°, etc. The angle between the first sub-mold surface 4111 and the third sub-mold surface 4113 can be designed according to the desired angle between the first surface 111 and the second surface 131 of the housing 100 .

It should be noted that the angle between the first sub-mold surface 4111 and the third sub-mold surface 4113 refers to the plane perpendicular to the first sub-mold surface 4111 and the first sub-mold surface 4111 and the third sub-mold surface 4111. The angle between the intersection lines of the three sub-mold surfaces.

Optionally, the blow mold 400 is made of steel, such as OCr25Ni20 mold steel. Compared with using graphite, steel is used as the material of the blow mold 400. Steel has better cutting characteristics and burning resistance. It is easier to process when preparing the blow mold 400, and computer digital controlled precision machining (CNC machining) is performed. It is less likely to be damaged (graphite processing characteristics are not good, and it is easy to collapse when CNC processing is used to prepare the blow mold 400, resulting in damage to the abrasive tool).

In some embodiments, the method for preparing the housing 100 in the embodiment of the present application further includes: CNC machining and polishing the housing 100 .

Optionally, use an engraving machine with a probe to deburr and finish the laser-cut housing 100. The tool uses a uniquely designed fan-shaped grinding wheel bar. Use 400# for deburring, and the feed rate is 1200mm/min. The rotating speed is 40000rpm, the depth of cut in the Z direction (100 thickness direction of the shell) is 0.3mm; 100# is used for finishing, the feed rate is 1400mm/min, the rotating speed is 34000rpm, and the depth of cut in the Z direction is 0.04mm. Then use a mixed brush (0.3mm diameter white nylon filament, plus 75 hardness grinding strip, mixing ratio 1:1) to polish side 13 to remove the knife mark left after CNC. The upper disk speed of the polishing disk 160rpm to 190rpm, the rotating speed of the lower plate of the polishing disc is 35rpm to 50rpm, the polishing pressure is 100Kg to 120kg, and the polishing time is 20min to 30min.

In some embodiments, the housing 100 is made of glass. The method for preparing the housing 100 in the embodiment of the present application further includes: chemically strengthening the housing 100 .

Optionally, the chemical strengthening of the housing 100 includes: first strengthening and second strengthening. The first strengthening includes preheating the shell 100 at 370°C to 390°C for 60 minutes, and performing chemical strengthening in a sodium nitrate (NaNO3) melt at a temperature of 430°C to 450°C for a time of 70min to 180min; the second strengthening It includes preheating the shell 100 at 370°C to 390°C for 60 minutes, and chemically strengthening it in a potassium nitrate (KNO3) melt at a temperature of 410°C to 450°C for a time of 70min to 150min, so that the glass substrate becomes tempered. Glass improves various mechanical properties of the housing 100, such as strength and hardness. Alternatively, the temperature of the first strengthening may be, but is not limited to, 430°C, 435°C, 440°C, 445°C, 450°C, etc. The first strengthening time is 70min, 80min, 100min, 120min, 140min, 160min, 180min, etc. Alternatively, the temperature of the second strengthening may be, but is not limited to, 410°C, 420°C, 430°C, 435°C, 440°C, 445°C, 450°C, etc. The second strengthening time is 70min, 80min, 100min, 120min, 140min, 150min, etc.

For a detailed description of the same features of this embodiment and the above-mentioned embodiment, please refer to the above-mentioned embodiment and will not be described again here.

The preparation method of the housing 100 of the present application adopts blow molding, which can obtain a housing with a bending angle exceeding 90°, that is, the angle α between the first surface 111 and the second surface 131 can be obtained. The housing 100 ranges from 40° to 90°, so that when the housing 100 is used in electronic equipment, the front cover and the middle frame can be integrated or the middle frame and the back cover can be integrated; and when used, the housing 100 and the back cover can be integrated. There is no gap between the cover or the casing 100 and the front cover, which can make the appearance of the electronic device more beautiful, and the sealing and waterproof performance are better. In addition, when the front cover and the middle frame are integrated, electronic devices can also be used for side screen display. Furthermore, when it is necessary to prepare the shell 100 with unequal thicknesses, the shell 100 prepared by blow molding has a simpler process and lower manufacturing cost than hot bending molding.

Referring to Figure 18, an embodiment of the present application also provides a method of preparing a housing 100. The housing 100 includes a housing body 10, a first light-shielding part 30, a decorative part 50 and a second light-shielding part 70; The main body 10 includes the main body part 11 and the side parts 13 that are bent and connected. The main body part 11 and the side parts 13 enclose a receiving space 101. The main body part 11 includes a first surface 111. The side portion 13 includes a second surface 131, a curved surface 133 and an end surface 135. The opposite ends of the curved surface 133 are connected to the first surface 111 and the second surface 131 respectively. The surface 133 and the second surface 131 enclose the accommodation space 101. The end surface 135 connects an end of the second surface 131 away from the curved surface 133. The first light shielding part 30 covers the side surface 133 and the second surface 131. on the second surface 131 and the curved surface 133 of the side part 13; the decorative part 50 covers at least part of the end surface 135 of the side part 13; the second light-shielding part 70 covers at least the The decorative part 50 is at least partially overlapped with the first light-shielding part 30 . The methods include:

S501, prepare an embryo body 300, which has a through hole 301;

S502, the embryo body 300 is placed in the blow mold 400, gas is introduced into the through hole 301, and blow molding is performed, so that the embryo body forms the main body portion 11 that is bent, connected and has an integrated structure. and the side part 13. The main part 11 includes a first surface 111; the side part 13 is arranged around the outer periphery of the main part 11, and the main part 11 and the side part 13 enclose a receiving space 101, The first surface 111 faces the accommodating space 101. The side portion 13 includes a second surface 131. The second surface 131 surrounds the accommodating space 101. The first surface 111 is connected to the second surface 131. The angle between the surfaces 131 ranges from 40° to 90°, thereby obtaining the housing body 10;

S503, perform CNC machining, polishing and chemical strengthening on the housing body 10;

For detailed descriptions of step S501 and step S503, please refer to the description of the corresponding parts of the above embodiment, and will not be described again here.

S504, form the first light shielding portion 30 on the second surface 131 and the curved surface 133 of the side portion 13;

Optionally, apply black negative photoresist to the surface of the housing body 10 facing the accommodation space 101 to form a photoresist layer, and set a mask to correspond to the second surface 131 and the first light-shielding portion 30 The photoresist layer is exposed and developed with a developer to develop away the photoresist layer in the unexposed area, leaving the photoresist layer in the exposed area. After hard baking, the first light-shielding portion 30 is formed.

S505, form the decorative portion 50 on at least part of the end surface 135; and

Optionally, use a low-tension steel mesh (10-15N) and a scraper using 70-80 degree silicone to perform silk printing on at least part of the end surface 135 (for example, an area of unequal thickness) to form the decorative portion 50 . Optionally, the decorative part 50 may be mirror silver, an ink layer with a glittering effect such as pearlescent powder, or one or more colors such as red, orange, yellow, green, blue, etc.

S506: Form a second light-shielding portion 70 on the decorative portion 50, and make the second light-shielding portion 70 at least partially overlap the first light-shielding portion 30.

Optionally, a protective film is used to protect the portion where the second light shielding portion 70 is not required, the area where the second light shielding portion 70 is to be formed is exposed, and ink is sprayed or printed to form the second light shielding portion 70 .

For a detailed description of the same features of this embodiment and the above-mentioned embodiment, please refer to the above-mentioned embodiment and will not be described again here.

Referring to Figures 19 to 21, an embodiment of the present application further provides an electronic device 600, which includes: a display component 610, the housing 100 described in the embodiment of the present application, and a circuit board assembly 630. The display component 610 is used for display; the housing 100 has an accommodating space 101, and the housing 100 is used to carry the display component 610; the circuit board assembly 630 is disposed in the accommodating space 101, and It is electrically connected to the display component 610 and used to control the display component 610 to display. In some embodiments, the display component 610 is also used to close the accommodating space 101; in other words, the housing 100 and the display component 610 form a closed accommodating space 101.

The electronic device 600 in the embodiment of the present application may be, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a desktop computer, a smart bracelet, a smart watch, an e-reader, a game console and other portable electronic devices.

For detailed description of the housing 100, please refer to the description of the corresponding parts of the above embodiment, and details will not be described again here.

Optionally, the display component 610 may be, but is not limited to, a liquid crystal display component, a light emitting diode display component (LED display component), a micro light emitting diode display component (MicroLED display component), or a sub-millimeter light emitting diode display component (MiniLED display component). ), one or more of organic light-emitting diode display components (OLED display components), etc.

Referring also to FIG. 21 , optionally, the circuit board assembly 630 may include a processor 631 and a memory 633 . The processor 631 is electrically connected to the display component 610 and the memory 633 respectively. The processor 631 is used to control the display component 610 to display, and the memory 633 is used to store the program code required for the operation of the processor 631, the program code required for controlling the display component 610, and the display of the display component 610. Content etc.

Optionally, the processor 631 includes one or more general-purpose processors 631, where the general-purpose processor 631 can be any type of device capable of processing electronic instructions, including a central processing unit (CPU), a microprocessor , microcontrollers, main processors, controllers, ASICs, etc. The processor 631 is used to execute various types of digital storage instructions, such as software or firmware programs stored in the memory 633, which can enable the computing device to provide a wide variety of services.

Optionally, the memory 633 may include volatile memory (Volatile Memory), such as random access memory (Random Access Memory, RAM); the memory 633 may also include non-volatile memory (Non-Volatile Memory, NVM), such as only Read-Only Memory (ROM), Flash Memory (FM), Hard Disk Drive (HDD) or Solid-State Drive (SSD). Memory 633 may also include a combination of the types of memory described above.

Reference in this application to "an embodiment" or "an implementation" means that a particular feature, structure or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of recited phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments. In addition, it should also be understood that the features, structures or characteristics described in the embodiments of the present application can be arbitrarily combined to form another one without departing from the spirit and scope of the technical solution of the present application, provided there is no contradiction between them. embodiment.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified. Any modification or equivalent substitution of the solution shall not depart from the spirit and scope of the technical solution of this application.

Claims (13)

1. A method for preparing a shell, characterized in that it includes: Preparing an embryo body, the embryo body having through holes; and The embryo body is placed in a blow mold. The blow mold includes a first sub-mold and a second sub-mold. The first sub-mold and the second sub-mold are enclosed to form a mold cavity. The mold The cavity is used to set the embryo body. Gas is introduced into the through hole for blow molding and cooling and shaping, so that the embryo body forms a main body and side parts that are bent and connected and have an integrated structure. The main body part includes a first surface; the side part is arranged around the outer periphery of the main body part, the main body part and the side part enclose an accommodation space, and the first surface faces the accommodation space, so The side portion includes a second surface surrounding the accommodation space, and an angle between the first surface and the second surface ranges from 40° to 90°, thereby obtaining the housing. . 2. The method of preparing a shell according to claim 1, wherein the embryo body includes a first part and a second part, and the thickness of the first part is greater than the thickness of the second part; After molding, the first part forms at least part of the side part, and the second part forms at least the main body part. 3. The method of manufacturing a casing according to claim 2, wherein the first part includes a first sub-part and a second sub-part, and the first sub-part and the second sub-part are respectively arranged on the At opposite ends of the second part, the through holes penetrate the first sub-part, the second part and the second sub-part in sequence, and the thickness of the first sub-part and the second sub-part is greater than that of the third sub-part. The thickness of the two parts. The side parts include a first sub-side part, a second sub-side part, a third sub-side part and a fourth sub-side part that are connected end to end. After blow molding, the first sub-part The first sub-side portion is formed, and the second sub-side portion forms the third sub-side portion; the second portion forms the main body portion, the second sub-side portion and the fourth sub-side portion. ; or, The first part includes a first sub-part, a second sub-part, a third sub-part and a fourth sub-part, the second part includes a fifth sub-part and a sixth sub-part, the third sub-part, the third sub-part and the fourth sub-part. The fifth sub-section, the fourth sub-section and the sixth sub-section are connected end to end in sequence to form a cylinder. The first sub-part and the second sub-part are respectively provided at opposite ends of the cylinder, and the through holes are sequentially Penetrating the first sub-part, the cylinder and the second sub-part; the thickness of the first sub-part, the third sub-part, the second sub-part and the fourth sub-part is greater than the thickness of the fifth sub-part and are greater than the thickness of the sixth sub-part; the side part includes a first sub-side part, a second sub-side part, a third sub-side part and a fourth sub-side part connected end to end in sequence. After blow molding, The first sub-part forms the first sub-side part, and the third sub-part forms the second sub-side part; the second sub-part forms the third sub-side part, the fourth sub-side part The second part forms the fourth sub-side part; the second part forms the main body part. 4. The method for preparing a shell according to any one of claims 1 to 3, characterized in that at least one of the first sub-mold and the second sub-mold has a cooling channel, and the cooling channel is Coolant is passed through to cool the first sub-mold and the second sub-mold; the blow mold is made of steel; the first sub-mold includes a first mold surface, and the second sub-mold The mold includes a second mold surface. When the first sub-mold and the second sub-mold are closed, the first mold surface and the second mold surface enclose the mold cavity. The first mold surface Both the second mold surface and the second mold surface are mirror polished surfaces. 5. The method for preparing a shell according to claim 4, wherein the first mold surface and the second mold surface each include a first sub-mold surface, a second sub-mold surface and a third sub-mold surface connected in sequence. Three sub-mold surfaces, the second sub-mold surface is arranged around the outer periphery of the first sub-mold surface, the third sub-mold surface is arranged around the outer periphery of the second sub-mold surface, the first sub-mold surface is The angle between the surface and the third sub-mold surface ranges from 40° to 90°. 6. A shell, characterized in that the shell is prepared by the method according to any one of claims 1-5. 7. The housing according to claim 6, wherein at least part of the thickness of an end of the side portion away from the main body portion is greater than a thickness of an end of the side portion connected to the main body portion. 8. The housing according to claim 7, wherein the side portion includes a curved portion and a straight portion, and opposite ends of the curved portion are respectively connected to the main body portion and the straight portion; at least The thickness of part of the curved portion gradually increases from the end connected to the main body portion to the end connected to the straight portion, from the thickness of the main body portion to the thickness of the straight portion. 9. The housing according to claim 6, wherein the side portions include a first sub-side portion, a second sub-side portion, a third sub-side portion and a fourth sub-side portion that are connected end to end in sequence, so The thickness of the second sub-side part and the fourth sub-side part is equal to the thickness of the main body part, and the thickness of the end of the first sub-side part away from the main body part is greater than the thickness of the side part connecting the main body. The thickness of one end of the third sub-side part away from the main body part is greater than the thickness of one end of the side part connected to the main body part; or; The side part includes a first sub-side part, a second sub-side part, a third sub-side part and a fourth sub-side part that are connected end to end. The first sub-side part, the second sub-side part and the third sub-side part are connected in sequence. The thickness of one end of the side part and the fourth sub-side part away from the main part is greater than the thickness of the first sub-side part, the second sub-side part, the third sub-side part and the fourth sub-side part close to the main part. One end. 10. The shell according to any one of claims 6 to 9, characterized in that the thickness of the main body part is uniform, and the thickness of one end of the side part connected to the main body part is equal to the thickness of the main body part; The difference between the thickness of at least part of the end of the side part away from the main part and the thickness of the end of the side part connected to the main part is 0.5 mm to 2.5 mm. 11. The housing according to any one of claims 6 to 9, wherein the side portion further includes an end surface and a curved surface, the end surface is connected to the second surface, and the end surface is located on the side portion. One end away from the main body part, the end surface is parallel to the first surface; the curved surface faces the accommodation space, and the opposite ends of the curved surface are respectively in contact with the first surface and the second surface. The surfaces are connected, and the radius of curvature of the curved surface is 1 mm to 10 mm. 12. The housing according to claim 11, wherein the housing further comprises: a first light-shielding part covering the second surface and the curved surface of the side part; a decorative portion covering at least part of the end surface of the side portion; and A second light-shielding part covers at least the decorative part and at least partially overlaps with the first light-shielding part. 13. An electronic device, characterized in that it includes: Display component, used for display; The housing according to any one of claims 6 to 12, the housing having a receiving space, the housing being used to carry the display component; and A circuit board assembly is provided in the accommodation space and is electrically connected to the display assembly for controlling the display assembly to display.