CN110290253A - Housing, electronic device and manufacturing method of housing - Google Patents

Abstract

This application discloses a kind of shells, the production method of electronic equipment and shell, the shell includes backboard and frame, the thickness of the backboard is less than the thickness of the frame, the backboard and the frame are integrally formed using perspex material, the frame is in substantially non-porous structure, the outer surface of the frame is equipped with the key groove of at least one indent, the key groove is to opposite with built-in key, and the key is made to can receive the pressing deformation signal of the key bottom portion of groove, magnetic interface is arranged in the backboard, the magnetic interface with built-in magnetic charge data transmitter to dock.It avoids avoiding shell blush defect occur in the frame aperture, improving the appearance property of shell.

Description

Housing, electronic device and manufacturing method of housing

technical field

The present application relates to the field of communication equipment, in particular to a housing and a manufacturing method for the housing.

Background technique

At present, there is a perforated structure in the frame of the mobile phone case. In the case where the mobile phone case is provided with a transparent material, the inner side of the perforated structure has a relatively rough inner surface due to mechanical processing, so that the inner side of the perforated structure forms a whitish inner surface. The color of the whitish inner surface of the perforated structure cannot be coordinated with the color of the shell, which reduces the appearance performance of the shell.

Contents of the invention

The application provides a casing and a manufacturing method of the casing.

The present application provides a housing, wherein the housing includes a back plate and a frame, the thickness of the back plate is smaller than the thickness of the frame, the back plate and the frame are integrally formed by transparent plastic material, the The frame has a completely non-porous structure, and the outer surface of the frame is provided with at least one concave key groove, and the key groove is used to be opposite to the built-in key, so that the key can receive the bottom of the key groove The pressing deformation signal, the backplane is provided with a magnetic interface, and the magnetic interface is used for docking with the built-in magnetic charging data transmitter.

The present application provides an electronic device, wherein the electronic device includes the above-mentioned casing, the electronic device further includes a front cover and a plurality of functional devices, the periphery of the front cover is fixedly connected to the frame, and the plurality of A functional device is fixed between the front cover and the back plate.

The present application provides a method for manufacturing a casing, wherein the method for manufacturing the casing is used to manufacture the above-mentioned casing, and the method for manufacturing the casing includes the steps of:

Injection molding a transparent shell base, the shell base has a back plate and a frame integrally formed with the back plate, the thickness of the frame is smaller than the thickness of the back plate, and the back plate has a magnetic interface;

At least one key groove extending from the outside to the inside is processed on the frame, and the bottom of the key groove can be deformed.

The casing, electronic equipment and casing manufacturing method provided by the present application have a completely non-porous structure through the frame, and the casing is provided with a button groove on the frame, and the bottom of the button groove can be deformed to realize the trigger button, and use The backboard is provided with a magnetic suction interface, which avoids opening holes in the frame, avoids the whitening defect of the casing, and improves the appearance performance of the casing.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the implementation manner. Obviously, the drawings in the following description are some implementation manners of the application, and are common to those skilled in the art. As far as the skilled person is concerned, other drawings can also be obtained based on these drawings on the premise of not paying creative work.

FIG. 1 is a schematic front view of a housing provided in an embodiment of the present application;

Fig. 2 is a schematic cross-sectional view of a housing provided by an embodiment of the present application;

Fig. 3 is a schematic cross-sectional view of a housing provided by another embodiment of the present application;

Fig. 4 is another schematic cross-sectional view of the casing provided by the embodiment of the present application;

5 is a schematic cross-sectional view of an electronic device provided by an embodiment of the present application;

Fig. 6 is a schematic flow chart of a shell manufacturing method provided by an embodiment of the present application;

Fig. 7 is a schematic diagram of the shell base of the shell manufacturing method provided by the embodiment of the present application;

Fig. 8 is another schematic diagram of the shell base of the shell manufacturing method provided by the embodiment of the present application;

FIG. 9 is a schematic diagram of an injection mold used in the shell manufacturing method provided by the embodiment of the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

In the description of the embodiments of the present application, it should be understood that the orientation or positional relationship indicated by the term "thickness" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, rather than implying Or an indication that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the application.

Referring to Fig. 1 and Fig. 2, the present application provides a casing 100, the casing 100 includes a backplane 10 and a frame 20 fixed on the periphery of the backplane 10, the thickness of the backplane 10 is smaller than that of the frame 20 thickness, the back panel 10 and the frame 20 are integrally formed by transparent plastic material. The outer surface of the frame 20 is provided with at least one concave button groove 21 . The key groove 21 is used to be opposite to the built-in key, and enables the key to receive the pressing deformation signal at the bottom of the key groove 30 . The backplane 10 is provided with a magnetic interface 11, and the magnetic interface 11 is used for a built-in magnetic charging data transmitter. It can be understood that the casing 100 can be applied in electronic equipment, and the electronic equipment can be a mobile phone, a tablet computer or a notebook computer, and the like.

Because the frame 20 has a completely non-porous structure, the housing 100 is provided with a button groove 21 on the frame 20, the bottom of the button groove 21 is deformable to realize the trigger button, and the backplane 10 is used to set a magnetic interface, Avoid opening holes in the frame 20 , prevent the shell 100 from appearing white defects, and improve the appearance performance of the shell 100 .

In this embodiment, the back panel 10 and the frame 20 are integrally formed in an injection mold. The inner side of the frame 20 and the inner side of the backboard 10 form a storage cavity 101, which can accommodate the main board, battery, antenna, loudspeaker, earpiece, memory, key device, microphone, audio Connectors, USB connectors and other functional devices. The frame 20 is substantially perpendicular to the backplane 10 . Certainly, in other implementation manners, the frame 20 may also substantially form an obtuse angle with the backplane 10 .

In this embodiment, the key groove 21 is formed by milling. The button groove 21 has a pressing bottom surface 211 and two connecting side surfaces 212 connecting the pressing bottom surface 211 . The pressing bottom surface 211 is a flat surface. The connecting side surface 212 is inclined relative to the pressing bottom surface 211 . The connecting side surfaces 211 are disposed opposite to each other along the length direction of the frame 20 . Both the pressing bottom surface 211 and the connecting side surface 212 are connected to the outer surface of the frame 20 . The pressing bottom surface 211 is connected to the outer surface of the frame 20 via an arc chamfered surface 213 . The connecting side surface 212 is connected to the outer surface of the frame 20 via an arc chamfered surface 213 . The edge of the opening of the key groove 21 generally extends in an elliptical racetrack shape. The thickness from the pressing bottom surface 211 to the inner side of the frame 20 is smaller than the thickness of the back plate 10, so that the bottom of the button groove 21 can be deformed under the pressing force, so as to facilitate the triggering of the button built into the frame 20. Inside buttons. Certainly, in other implementation manners, the opening edge of the groove 30 may also be substantially rectangular.

In this embodiment, the magnetic interface 11 is disposed on the short side of the backplane 10 close to the bottom. The magnetic interface 11 includes a plurality of microholes 111, and the plurality of microholes 111 are used for inserting the conductive contacts of the magnetic charging data transmitter, so that the external charging data transmission connector can pass through the magnetic interface. 11 Charging and transmitting data signals to electronic devices. The plurality of microholes 111 are formed together during the injection molding process of the back plate 10 , so as to improve the machining accuracy of the plurality of microholes 111 . By opening the plurality of microholes 111 in the back plate 10 , holes are avoided in the frame 20 and the appearance performance of the casing 100 is improved. Due to the small thickness of the back plate 10 , the area of the inner wall of the microhole 111 is small, so that the whitening of the inner wall of the microhole 111 is almost invisible, thereby meeting the appearance performance requirements of the housing 100 .

In this embodiment, the backboard 10 is further provided with a camera hole 112 and a flashlight hole 113 . The camera hole 112 and the flash hole 113 are respectively opposite to the camera module and the flash built in the casing 100 . The camera hole 112 and the flash light hole 113 are roughly disposed on the short side near the top of the backboard 10 . The camera hole 112 and the flashlight hole 113 are separated from each other to prevent cross-lighting. Both the camera hole 112 and the flashlight hole 113 can have built-in lenses, so that the whitish inner wall of the camera hole 112 and the whitish inner wall of the flashlight hole 113 are invisible.

Further, the frame 20 is provided with an outwardly convex curved surface 22, and the periphery of the backboard 10 is provided with a curved surface 12 connecting the curved surface 22, and the curved surface 12 is connected to the curved surface 22. Tangentially, the back plate 10 is further provided with a flat surface 13 connecting the inner edge of the curved surface 12 , and the flat surface 13 is tangent to the curved surface 12 .

In this embodiment, the arc-shaped curved surface 22 may extend along a curve in a plane perpendicular to the backplane 10 . The arc-shaped curved surface 22 increases the smoothness of the exterior of the frame 20 and reduces the visual width of the frame 20 , so that the casing 100 is visually thinner. Two opposite long sides of the pressing bottom surface 211 of the button groove 21 are connected to the arc-shaped curved surface 22 to facilitate contact with the pressing bottom surface 211 and facilitate pressing the pressing bottom surface 211 . A flat pressing bottom surface 211 is provided at the bottom of the key groove 21 , so that the key groove 21 can reduce the stress loss of the frame 20 and ensure the overall strength of the frame 20 . The connection between the arc-shaped surface 22 and the pressing bottom surface 211 is rounded to enhance the smooth appearance of the frame 20 and improve the appearance and structural performance of the housing 100 . Certainly, in other implementation manners, the bottom of the key groove 21 may also be provided with an arc-shaped curved surface.

In one embodiment, the housing 100 is further provided with an inner plane 14 parallel to the flat surface 13 and an inner peripheral side 23 arranged at an angle with the inner plane 14 . The backplane 10 is formed between the inner plane 14 and the flat surface 13 . The frame 20 is formed between the inner peripheral side 23 and the curved surface 22 . The inner peripheral surface 23 and the inner plane 14 are connected by an inner arc surface, so as to reduce the molding difficulty of the housing 100 . The inner peripheral side 23 can be a curved surface, and the position of the inner peripheral side 23 and the pressing bottom surface 211 of the key groove 21 can be set as a substantially flat surface, so that the bottom of the key groove 21 can be pressed. deformation. The magnetic interface 11 runs through the inner plane 14 and the flat surface 13 to facilitate fixing the magnetic charging data transmitter inside the housing 100 . The camera hole 112 and the flashlight hole 113 pass through the inner plane 14 and the flat surface 13 to facilitate fixing the camera module and the flashlight inside the casing 100 .

In another embodiment, please refer to FIG. 3 , the back plate 10 is provided with a spherical back 15 connected to the curved surface 22 , and the spherical back 15 is tangent to the curved surface 22 . The housing 100 is provided with an inner spherical surface 16 . The frame 20 is formed between the periphery of the inner spherical surface 16 and the curved surface 22 . The back plate 10 is formed between the middle area of the inner spherical surface 16 and the spherical back surface 15 . The inner spherical surface 16 provided inside the housing 100 can reduce the depth of the receiving chamber 101 , thereby reducing the overall thickness of the housing 100 , making the housing 100 thinner and lighter.

Further, please refer to FIG. 1 and FIG. 2 again, the frame 20 includes a first long side 24 and a second long side 25 opposite to the first long side 24, and the at least one concave key groove 21 It includes a power key slot 213 disposed on the first long side 24 and a volume key slot 214 disposed on the second long side 25 .

In this embodiment, the first long side 24 is parallel to the second long side 25 . The length of the power key slot 213 is smaller than the length of the volume key slot 214 . Of course, in other implementation manners, the length of the power button groove 213 may also be equal to the length of the volume button groove 214, and a depressible protrusion is provided at the bottom of the power button groove 213, and the volume button Two depressible protrusions are provided at the bottom of the slot 214 to distinguish the volume button slot 214 from the power button slot 213 .

Further, please refer to FIG. 4 , the housing 100 includes a decoration layer 50 attached to the inside of the back panel 10 and the inside of the frame 20 , and the magnetic interface 11 passes through the decoration layer 50 .

In this embodiment, the decoration layer 50 is formed on the inside of the frame 20 and the back panel 10 , so that the decoration layer 50 can be observed through the frame 20 and the back panel 10 . Utilizing the decoration layer 50 to decorate the light-shielding performance improves the appearance performance of the housing 100 . The decoration layer 50 is formed by coating or/and coating process. The decoration layer 50 is hollowed out at the magnetic interface 11 so that the magnetic interface 11 passes through the decoration layer 50 . The decoration layer 50 includes a color plating layer 51 , an electroplating layer 52 and a primer layer 53 stacked sequentially from inside to outside.

Specifically, firstly, the color-plated layer 51 is formed inside the housing 100 . The color-plated layer 51 has a predetermined color, and the color-plated layer 51 has a preset light transmittance, so as to increase the color decoration effect of the color-plated layer 51 .

Then, an imitation electroplating layer 52 is formed on the color plating layer 51 . The imitation electroplating layer 52 can increase the metal imitation visual effect of the housing base 110 .

Finally, a primer layer 53 is formed on the imitation electroplating layer 52 . The primer layer 53 may be a color paint layer with a predetermined color. The primer layer 53 provides a base color for the decoration layer 50, so that the decoration layer 50 has a decorative light-shielding performance.

Please refer to FIG. 5, the present application also provides an electronic device 200, the electronic device 200 includes the housing 100, the electronic device 200 also includes a front cover 300 and a plurality of functional devices 400, the front cover 300 The peripheral edge is fixedly connected with the frame 20 , and the plurality of functional devices 400 are fixed between the front cover 300 and the back plate 10 .

In this embodiment, the front cover 300 includes a glass cover 310 and a display screen 320 attached to the glass cover 310 . The periphery of the glass cover 310 is sealed and connected to the frame 20 , so that the electronic device 200 has waterproof performance. The display screen 320 is located on a side of the glass cover 310 facing the backplane 10 . The glass cover 310 is fixedly connected to the end of the frame 20 away from the back plate 10 to close the receiving cavity 101 . The display screen 320 is accommodated in the accommodation cavity 101 . The plurality of functional devices 400 include at least one pressure sensing button, a magnetic charging data transmitter 420 , a camera module 430 , a flashlight 440 and an earpiece exciter 450 . The at least one pressure sensing key includes a power pressure sensing key 411 and a volume pressure sensing key 412 . The power pressure sensing button 411 interferes with the bottom of the power button groove 213 . The volume pressure sensing button 412 interferes with the bottom of the volume button slot 214 . The camera module 430 and the flashlight 440 are opposite to the camera hole 112 and the flashlight hole 113 respectively. The magnetic charging data transmitter 420 is docked with the magnetic interface 11 to seal the magnetic interface 11 . The magnetic charging data transmission 420 can be connected with external charging data to realize charging and data transmission. The earpiece exciter 450 is fixed inside the display screen 320 and emits sound by vibrating the display screen 320 to facilitate the user to answer voice calls. The multiple functional devices 400 also include a motherboard and an embedded SIM card. The main board is fixed on the bottom of the receiving cavity 101 to be electrically connected to the display screen 320 . The embedded SIM card can realize calling and networking.

Please refer to FIG. 6 , the present application also provides a casing manufacturing method, which is used for manufacturing the casing 100 . The manufacturing method of the shell comprises the steps of:

101: Injection-molded transparent shell base 110, the shell base 110 has a back plate 10 and a frame 20 integrally formed with the back plate 10, the thickness of the frame 20 is smaller than the thickness of the back plate 10, the back plate 10 is The board 10 has a magnetic interface 11 .

Please refer to FIG. 7 , FIG. 8 and FIG. 9 , in this embodiment, the housing base 110 is formed of transparent plastic material. The housing base 110 is formed by injection compression molding process. Specifically, the molding steps of the shell base 110 include:

An injection mold 500 is provided, the injection mold 500 includes a fixed mold core 510 and a movable mold core 520, the fixed mold core 510 has a first molding part 511, and the movable mold core 520 has a second molding part 521 and the The second molding part 521 slides the compression molding part 522 .

The first molding part 511 is a fixed mold cavity. The second molding part 521 is a dynamic mold cavity. The compression molding part 522 may pass through the bottom of the second molding part 521 . The end of the compression-molded part 522 may constitute a dynamic mold core. The sliding direction of the compression molding part 522 relative to the movable mold core 520 is parallel to the closing direction of the movable mold core 520 relative to the fixed mold core 510 . The sliding direction of the slider 530 relative to the fixed mold core 510 is perpendicular to the clamping direction of the fixed mold core 510 and the movable mold core 520 . After the fixed mold core 510 and the movable mold core 520 are closed, the end of the slider 530 protrudes into the forming cavity formed by the first forming part 511 and the second forming part 521 .

The fixed mold core 510 and the movable mold core 520 are closed, so that the first forming part 511 cooperates with the second forming part 521 to form a first forming space.

In this embodiment, when the fixed mold core 510 and the movable mold core 520 are closed, there is a preset distance between the compression molding part 522 and the fixed mold core 510 . The preset distance is equal to the distance between the end surface of the compression molding part 522 and the bottom surface of the first molding part 511 . There is a first distance between the outer peripheral side of the compression molding part 522 and the inner peripheral side of the first molding part 511 . The preset distance is approximately equal to the first distance, so as to facilitate the stability of the flow rate of the plastic in the first molding space and ensure the molding quality of the plastic in the first molding space.

A first part of melted plastic material is added into the first molding space.

In this embodiment, the filling amount of the first part of the plastic material is approximately 80%-90% of the molding amount of the housing base 110 . That is, the first part of the plastic material does not completely fill the first forming space, so that the compression molding part 522 compresses the first part of the plastic material.

sliding the compression molding part 522, so that the first molding space is compressed to form a second molding space, and a second part of molten plastic material is added into the second molding space, and the first part of plastic material and the The second part of plastic material completely fills the second forming space to form the housing base 110 .

In this embodiment, the compression molding part 522 slides to the final molding position, that is, the compression molding part 522 compresses the first part of the plastic material to apply molding pressure to the first part of the plastic material, so that the first part The plastic material fills more smoothly. There is a second distance between the compression molding part 522 and the bottom surface of the first molding part 511 . The second distance is smaller than the first distance. The second distance is used to shape the backplane 10 . The first distance is used to form the frame 20 . The second part of plastic material and the first part of plastic material jointly form the casing base 110 .

Open the fixed mold core 510 and the movable mold core 520, and take out the shell base 110.

In this embodiment, by opening the fixed mold core 510 and the movable mold core 520, and sliding the slider 530 out relative to the first molding part 511 and the second molding part 521, to facilitate the The shell base 110 can be demolded smoothly.

Please refer to Fig. 6, Fig. 1 and Fig. 2, described housing manufacturing method also comprises steps:

102: Process at least one key groove 21 extending from the outside toward the inside on the frame 20, and the bottom of the key groove 21 can be deformed.

In this embodiment, after the housing base 110 is taken out, the housing base 110 can be fixed on a processing jig, and the button groove 21 can be processed and formed by a numerical control milling process. In the step of processing the key groove 21, a reinforcing plate can be installed on the inner side of the frame 20 corresponding to the position of the key groove 21, and the structural performance of the frame 20 can be reinforced by using the reinforcing plate , to prevent the processing deformation of the key groove 21, so as to ensure the molding quality of the key groove 21.

Please refer to Fig. 6 and Fig. 4, described housing manufacturing method also comprises steps:

103 : Form a decoration layer 50 inside the housing base 110 .

In this embodiment, the decoration layer 50 is formed on the inside of the frame 20 and the back panel 10 , so that the decoration layer 50 can be observed through the frame 20 and the back panel 10 . Utilizing the decoration layer 50 to decorate the light-shielding performance improves the appearance performance of the housing 100 .

Specifically, firstly, the color-plated layer 51 is formed on the inner side of the housing base 110 . The color-plated layer 51 has a predetermined color, and the color-plated layer 51 has a preset light transmittance, so as to increase the color decoration effect of the color-plated layer 51 .

Then, an imitation electroplating layer 52 is formed on the color plating layer 51 . The imitation electroplating layer 52 can increase the metal imitation visual effect of the housing base 110 .

Finally, a primer layer 53 is formed on the imitation electroplating layer 52 . The primer layer 53 may be a color paint layer with a predetermined color. The primer layer 53 provides a base color for the decoration layer 50, so that the decoration layer 50 has a decorative light-shielding performance.

The frame has a completely non-porous structure, the housing is provided with key grooves on the frame, the bottom of the key groove can be deformed to realize the trigger button, and the back plate is used to set the magnetic interface to avoid opening in the frame. holes, avoiding the whitening defects of the shell, and improving the appearance performance of the shell.

The above is the implementation of the embodiment of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the embodiment of the present application, some improvements and modifications can also be made. These improvements and modifications are also It is regarded as the scope of protection of this application.

Claims (15)

1. a kind of shell, which is characterized in that the shell includes backboard and frame, and the thickness of the backboard is less than the frame Thickness, the backboard and the frame are integrally formed using perspex material, and the frame is in substantially non-porous structure, the side The outer surface of frame is equipped with the key groove of at least one indent, and the key groove makes to opposite with built-in key The key can receive the pressing deformation signal of the key bottom portion of groove, and magnetic interface is arranged in the backboard, and the magnetic connects Mouth with built-in magnetic charge data transmitter to dock.

2. shell according to claim 1, which is characterized in that the frame is equipped with the arc-shaped curved surface of evagination, the backboard Periphery be equipped with the flexure plane for connecting the arc-shaped curved surface, the flexure plane and the arc-shaped curved surface are tangent, and the backboard is also set There is the burnishing surface for connecting the flexure plane inward flange, the burnishing surface and the flexure plane are tangent.

3. shell according to claim 2, which is characterized in that the magnetic interface is opened in the burnishing surface.

4. shell according to claim 1, which is characterized in that the frame includes the first long side and relatively described first length Second long side of side setting, the key groove of at least one indent includes the power button slot for being set to first long side With the volume button slot for being set to second long side.

5. shell described in any one according to claim 1~4, which is characterized in that the shell includes being attached to the back On the inside of plate and the decorative layer of the scuncheon, the magnetic interface pass through the decorative layer.

6. shell according to claim 5, which is characterized in that the decorative layer include stack gradually from the inside to the outside it is coated Layer, imitative electroplated layer and prime coat.

7. a kind of electronic equipment, which is characterized in that the electronic equipment includes shell described in claim 1~6 any one, The electronic equipment further includes front cover and multiple function elements, and the periphery of the front cover is fixedly connected with the frame, described more A function element is fixed between the front cover and the backboard.

8. electronic equipment according to claim 7, which is characterized in that the front cover includes glass cover-plate and fits in described The display screen of glass cover-plate, the periphery of the glass cover-plate are fixedly connected with the frame, and the display location is in the glass cover Plate is towards the backboard side.

9. electronic equipment according to claim 7, which is characterized in that the multiple function element includes at least one pressure Sense key and magnetic charge data transmitter, at least one described pressure sensing key and at least one described key groove phase Right, the magnetic charge data transmitter is docked with the magnetic interface.

10. electronic equipment according to claim 8, which is characterized in that the multiple function element further includes earpiece excitation Device, the earpiece driver are fixed on the inside of the display screen, by vibrating the external sounding of display screen.

11. a kind of method for producing shell, which is characterized in that the method for producing shell is any one for making claim 1~6 Described in shell, the method for producing shell comprising steps of

The transparent housing base of injection molding, the housing base have backboard and with the integrally formed frame of the backboard, institute Seal ring thickness is stated less than the back plate thickness, the backboard has magnetic interface；

At least one key groove extended by outside towards indent is processed in the frame, the bottom of the key groove can produce Raw deformation.

12. method for producing shell according to claim 11, which is characterized in that the step of injection molding transparent shell matrix Include:

Injection mold is provided, the injection mold includes fixed mold core and mavable module core, and the fixed mold core has the first forming part, described Mavable module core has the compression forming portion of the second forming part and the relatively described second forming part sliding；

The fixed mold core and the mavable module core are closed, so that first forming part matches shape with second forming part At the first molding space；

First part's plastic material of melting is added into first molding space；

The compression forming portion is slided, so that first molding space compresses to form the second molding space, and to described second The second part plastic material of melting, first part's plastic material and the second part plastic cement material are added in molding space Material is filled up completely second molding space, to form the housing base；

The fixed mold core and the mavable module core are opened, the housing base is taken out.

13. method for producing shell according to claim 12, which is characterized in that the frame process at least one by In the step of key groove that outside extends towards indent, key groove polishing grinding after Milling Process is formed.

14. method for producing shell described in 1~13 any one according to claim 1, which is characterized in that the shell production side Method further comprises the steps of:

Decorative layer is formed on the inside of the housing base.

15. method for producing shell according to claim 14, which is characterized in that form decoration on the inside of the housing base Layer the step of include:

Plating chromatograph is formed in the inside of the housing base；

Imitative electroplated layer is formed on the plating chromatograph；

Prime coat is formed on the imitative electroplated layer.