CN204560054U - The housing of electronic equipment and comprise the electronic equipment of this housing - Google Patents

Abstract

The utility model relates to a housing for electronic equipment, the housing includes at least one metal body and at least one microlayer structure, the microlayer structure and the metal body constitute a part of the antenna of the electronic equipment, And both ends of the microlayer structure extend to at least one edge of the periphery of the housing, wherein the microlayer structure includes at least one metal layer and at least one filling layer, and the metal layer and the filling layer are stacked. The utility model also relates to an electronic device comprising the casing.

Description

Housing for electronic equipment and electronic equipment including the housing

technical field

The utility model relates to a shell of electronic equipment and the electronic equipment comprising the shell.

Background technique

At present, in order to make electronic devices, such as handheld communication devices (usually including small portable computers, smart phones, etc.) more robust and to achieve more decorative effects, metals are widely used to replace traditional plastic materials as the shells of handheld communication devices.

In order to further reduce the size of the entire device and make it more compact and portable, the metal shell or a part of the metal shell of the handheld communication device is often used as a component of the antenna in design. In order to avoid the shielding effect of the good conductor metal shell on the antenna communication signal, it is generally necessary to open a gap in a specific part of the metal shell. The gap has certain high-frequency impedance and capacitive reactance characteristics, and is used as an antenna or a part of the antenna circuit. Solve the shielding problem of the antenna communication signal of the metal shell team. However, opening gaps on the metal shell often affects the appearance of the handheld communication device and destroys the unibody feature of the entire handheld communication device shell.

In order to continue to maintain the integrity or integrity of the appearance of the handheld communication device, the size of the gap opened on the metal shell is required to be small enough so that when the user observes the gap with naked eyes, the gap is invisible or only has a very low Visibility.

US patent US 8,373,610 B2 discloses an antenna structure, and US patent application US 2009/0153412 A1 discloses an antenna window structure. In the structure of the aforementioned antenna and antenna window, the width of several micro-slits opened on the metal shell or component is less than 100 μm, and it is considered that when the width of the slit is less than 100 μm, the surface of the shell in the area where the slit is located and the surface of other parts of the shell The difference in visual effect of the surfaces is very small. Therefore, even if a slit is opened on the casing and the integrity of the casing is damaged, the influence of the slit on the visual integrity of the casing can be minimized by controlling the size of the slit. But only by controlling the width of the slit can not fundamentally solve the problem of the visual integrity of the shell.

Utility model content

One purpose of the present invention is to solve the above-mentioned problems in the prior art.

According to one aspect of the present invention, a casing for an electronic device is proposed, the casing includes at least one metal body and at least one microlayer structure, and the microlayer structure and the metal body constitute the electronic device. A part of the antenna of the device, and the two ends of the microlayer structure extend to at least one edge of the periphery of the housing, wherein the microlayer structure includes at least one metal layer and at least one filling layer, the metal layer and The filling layers are stacked.

Preferably, the casing may further include a reinforcement layer made of insulating material, and the reinforcement layer is adhered to the inside and/or outside of the metal body and the microlayer structure.

Preferably, the housing may be substantially flat, and its inner surface and/or outer surface are flat or arc-shaped.

Preferably, the housing may include a substantially flat main body and a frame extending from the periphery of the main body in a direction substantially perpendicular to the plane where the main body is located. Preferably, said microlayer structure may be located at least partially within one or more of said frames.

Preferably, the microlayer structure may be located near one or more edges of the shell.

Preferably, the color difference ΔE _ab between the surface color of the filling layer and the surface colors of the metal body and the metal layer satisfies: 0≤ΔE _ab ≤5.

Preferably, the filling layer may contain a dye, so that the color difference ΔE _ab between the surface color of the filling layer and the surface color of the metal body satisfies: 0≤ΔE _ab ≤5.

Preferably, the exposed surface of the filling layer may be provided with a color compensation layer, so that the color difference ΔE _ab between the surface color of the color compensation layer and the surface colors of the metal body and the metal layer satisfies: 0 ≤ΔE _ab ≤5.

Preferably, the color difference ΔE _ab between the surface color of the filling layer and the surface colors of the metal body and the metal layer can satisfy: 0≤ΔE _ab ≤2.

Preferably, the outer surface of the housing can be coated with a decorative layer, so that the color difference ΔE _ab between the surface color of the decorative layer on the filling layer and the surface color of the decorative layer on the metal body satisfies: 0 ≤ΔE _ab ≤5, and more preferably: 0≤ΔE _ab ≤2.

Preferably, the decorative layer may be an electro-adornment coating, a paint layer, an optical coating layer or a sandblasting layer.

Preferably, the outer surface of the housing may be provided with decorative textures.

Preferably, the decorative lines may be in the form of lines, hairlines, concentric circles or waves.

Preferably, each microlayer structure may include 5-10 filling layers, and the filling layers and the metal layers may be stacked alternately.

Preferably, the filling layer has a width of 10-100 μm.

Preferably, the metal layer has a width of 0.1-1.0 mm.

According to another aspect of the present utility model, an electronic device is also provided, and the electronic device includes the housing according to the above.

Description of drawings

Preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, wherein:

Figure 1 shows a partial cross-sectional view of a housing according to a first embodiment of the present invention;

Fig. 2 shows a partially enlarged view of the housing in Fig. 1;

Figures 3a-3a" respectively show a front view, a bottom view and a side view of a housing according to a second embodiment of the present invention;

Figures 3b and 3c show perspective views from the inside and outside, respectively, of the housing shown in Figure 3a;

Figures 4a-4a" respectively show a front view, a bottom view and a side view of a housing according to a third embodiment of the present invention;

Figures 4b and 4c show perspective views from the inside and outside, respectively, of the housing shown in Figure 4a;

Fig. 5-Fig. 5 "' respectively show the front view, the bottom view, the side view and the perspective view viewed from the inside according to the fourth embodiment of the present utility model;

Fig. 6-Fig. 6 "' respectively show the front view, the bottom view, the side view and the perspective view viewed from the inside according to the fifth embodiment of the present utility model;

Fig. 7-Fig. 7 " ' show respectively the perspective view according to the sixth embodiment of the present utility model, bottom view, side view and observation from the inside;

Fig. 8-Fig. 8"" respectively show a front view, a top view, a bottom view, a side view and a perspective view from the inside according to the seventh embodiment of the present utility model;

Figures 9a and 9b show partial enlarged views of the top and bottom of the housing shown in Figures 8-8"", respectively;

Fig. 10-Fig. 10"' respectively show a front view, a bottom view, a side view and a perspective view viewed from the inside of the housing according to the eighth embodiment of the present invention;

Figure 11 shows a partially enlarged view of the microlayer structure in Figure 10-Figure 10 "';

Figures 12-12"" respectively show a front view, a top view, a bottom view, a side view and a perspective view viewed from the inside of the housing according to the ninth embodiment of the present invention;

Figure 13a and Figure 13b show respectively the partial enlarged view of the microlayer structure in Figure 12-Figure 12 " ";

Figures 14-14"" respectively show a front view, a top view, a bottom view, a side view and a perspective view viewed from the inside of the housing according to the tenth embodiment of the present invention;

Figure 15 shows a partially enlarged view of the microlayer structure in Figure 14-Figure 14 "";

Figures 16-16"" respectively show a front view, a top view, a bottom view, a side view and a perspective view viewed from the inside of the housing according to the eleventh embodiment of the present invention;

Fig. 17 shows a partially enlarged view of a casing according to a twelfth embodiment of the present invention;

Fig. 18 shows a partially enlarged view of a casing according to a thirteenth embodiment of the present invention;

Fig. 19 shows a partially enlarged view of a housing according to a fourteenth embodiment of the present invention;

Fig. 20 shows a partial enlarged view of the casing according to the fifteenth embodiment of the present invention;

21a and 21b respectively show a partial perspective view and an enlarged partial perspective view of a housing according to a sixteenth embodiment of the present invention;

22a and 22b respectively show a perspective view of a housing according to a seventeenth embodiment of the present invention and an enlarged partial perspective view thereof; and

Figures 23a and 23b show a perspective view of a housing according to an eighteenth embodiment of the present invention and an enlarged partial cross-sectional view thereof, respectively.

Detailed ways

Referring to FIG. 1 , it shows a partial cross-sectional view of a housing 100 according to a first embodiment of the present invention. The casing 100 is for example used in electronic equipment, especially handheld communication equipment.

The casing 100 includes at least one metal body 110 and at least one microlayer structure 120 . The microlayer structure 120 includes a plurality of metal layers 121 and a plurality of filling layers 122 . Referring to FIG. 2 , it shows a partially enlarged view at P in FIG. 1 . Here, the metal layer 121 is composed of strip-shaped metal flakes extending perpendicular to the drawing. Filling layer 122 is made of an insulating material. Wherein, the metal layer and the filling layer are stacked alternately, thereby constituting a part of the antenna of the electronic device.

Optionally, the housing 100 may further include a strengthening layer 130 made of insulating material and attached to the inside and/or outside of the metal body 110 and the microlayer structure 120 .

In this embodiment, the filler layer 122 constitutes an insulating microlayer in the housing 100 . In addition, the metal body 110 and the metal sheet 121 may also be anodized in advance. In this case, the insulating microlayer is composed of an anodized film layer between metal sheets plus a filling layer 122 .

In order to achieve an overall visual effect of the housing, the insulating microlayer needs to be invisible, or at least of low visibility. For example, the value of the width of the insulating microlayer may be, for example, 5-100 μm, especially, the filling layer may be 10-100 μm. The width of the metal flakes may be, for example, 0.1 to 1.0 mm.

When the metal body 110 and the metal sheet 121 are anodized before being combined, there may be an anodized film with a uniform thickness on the treated metal surface, the thickness of which is, for example, about 1-20 μm. Since the oxide film has insulating properties, the insulation between the metal sheets is better ensured. And because the anodized film layer is a porous structure, these porous surface topography is also conducive to improving the connection strength between metals. In this case, from the perspective of material composition, the insulating microlayer is composed of an anodized film layer and an insulating material constituting the filling layer.

When the above-mentioned metal shell 100 is applied to, for example, a handheld communication device, the main function of the insulating microlayer is to make the metal shell 100 itself have a certain high-frequency impedance, so that the inside of the metal shell 100 can receive and transmit high-frequency radio signal. The high frequency here refers to the electromagnetic frequency of 700MHz to 3000MHz.

This kind of micro insulating layer structure has inductive reactance and capacitive reactance characteristics in the target frequency band. Immunity characteristics can act as a matching circuit to make the radiating device produce the best effect in the frequency band of interest. Since the transmission and reception of radio signals are realized through the hidden groove and the various parts of the casing divided by the hidden groove, the metal casing not only meets the requirements of the mobile terminal equipment on the mechanical performance and appearance of the casing, but also Realize the antenna function of the radio communication signal of the mobile terminal equipment.

It can be understood that although in this embodiment, two metal bodies 110 and seven metal sheets 121 are provided, other numbers are also feasible. For example, 5 or 9 metal sheets can be arranged between two metal bodies, or 2 microlayer structures can be provided to connect 3 metal bodies, wherein each microlayer structure can have 5 or 9 metal sheets respectively. In addition, it is even possible to provide only 1 metal body. In this case, the microlayer structure can be used as the edge part of the entire metal shell. Preferably, each microlayer structure includes 5-10 filling layers.

In this embodiment, for example, an adhesive can be used as a bond to form the filling layer 122 . In this case, the bonding of the metal body 110 and the metal foil 121 is performed using an "adhesive method". The binder may be an organic binder or an inorganic binder, and may be a binder in a liquid form or a non-liquid form.

Alternatively, the filling layer 122 can also be composed, for example, of an organic material that melts when heated, and the bonding of the metal body 110 and the metal foil 121 is carried out using a "melting method". Wherein the organic material may be PE, PP, PET, PPS, nylon and the like.

Referring now to Figures 3a-16"", different embodiments of microlayer structures are shown. Although the visual effect of the microlayer structure part is not significantly different from other parts of the shell, in order to clearly show the position and distribution of the microlayer structure on the shell, the dark lines in Figure 3a-16"" represent the microlayer structure .

It should be noted that, when the microlayer structure is used as a part of the antenna of the electronic device, the microlayer structure is generally designed to be in the shape of a narrow band as a whole and distributed along the surface of the housing of the electronic device. The microlayer structure having a narrow strip shape has two ends. In order to realize the antenna function, at least one end of the microlayer structure should be designed as a free end, that is, the end face of at least one end of the microlayer structure should be in the electron The edge (or surface) of the device. That is, structurally, such as when there is a microlayer structure, the microlayer structure divides the metal shell into two parts, the first metal shell and the second metal shell, and the first metal shell and the second metal shell Completely or partially separated by microlayer structure.

Figures 3a-3a" show a front view, a bottom view and a side view of the housing 200, and Figures 3b and 3c show perspective views of the housing 200 from the inside and outside, respectively. The housing 200 consists of two metal Body 210 and a microlayer structure 220. Two metal bodies 210 are connected by the microlayer structure 220. The microlayer structure 220 includes a plurality of metal layers and a plurality of filling layers. The housing 200 is roughly flat, and its inner surface is flat (as shown in Figure 3b), and its outer surface is flat or curved (as shown in Figure 3c).

Figures 4a-4a" show a front view, a bottom view and a side view of the housing 200', and Figures 4b and 4c show perspective views of the housing 200' from the inside and outside, respectively. The housing 200' includes Three metal bodies 210' and two microlayer structures 220'. The three metal bodies 210' are connected by two microlayer structures 220'. The microlayer structure 220' includes a plurality of metal layers and a plurality of filling layers. Shell The body 200 is substantially flat, with a flat inner surface (as shown in FIG. 4b ) and a flat or arc-shaped outer surface (as shown in FIG. 4c ).

Figures 5-5"' show a front view, a bottom view, a side view and a perspective view from the inside of the housing 300. Similar to the housing 200 shown in Figure 3a, the housing 300 includes two metal bodies 310 and a microlayer structure 320. The difference is that the housing 300 includes a generally planar body and a frame 301 extending from the periphery of the body. In this embodiment, the frame 301 consists of upstanding walls of the metal body 310 and the microlayer The structure 320 is formed of upstanding walls extending in a direction generally perpendicular to the planar body.

Figures 6-6"' show a front view, a bottom view, a side view, and a perspective view from the inside of a casing 300'. The casing 300' includes three metal bodies 310' and two microlayer structures 320' . Similar to the housing 300 shown in FIGS. 5-5''', the housing 300' includes a substantially flat main body and a frame 301' extending from the periphery of the main body.

7-7'' show a front view, a bottom view, a side view, and a perspective view from the inside of the housing 400. The housing 400 includes a first metal body 410, a microlayer structure 420 and a second metal body 430 The first metal body 410 and the second metal body 430 are connected through the microlayer structure 420 .

The first metal body 410 includes a flat main body 411, a top wall 412, a first side wall 413 and a second side wall 414. Wherein, the first side wall 413 , the top wall 412 , and the second side wall 414 are sequentially and smoothly connected to form a U-shaped wall. The U-shaped walls are perpendicular to the panel body 411 and extend from its edge.

The second metal body 430 together with part of the microlayer structure 420 forms the bottom wall 415 of the housing 400 . The microlayer structure 420 extends laterally in the bottom wall 415 to the first side wall 413 and the second side wall 414 . At the two junctions between the bottom wall 415 and the side walls 413, 414, that is, at the two corners of the bottom of the housing 400, the microlayer structure 420 transitions from extending laterally in the bottom wall 415 to extending to the side walls 413, 414, 414 Liberty Edge.

8-8"" show a front view, a top view, a bottom view, a side view and a perspective view from the inside of the housing 400'. The housing 400' includes a first metal body 410', two microlayer structures 420' and two second metal bodies 430'. The first metal body 410' is connected to two second metal bodies 430' through two microlayer structures 420' at the top and bottom respectively.

Figures 9a and 9b show enlarged partial views of the top and bottom of the housing 400', in particular showing the microlayer structure 420' and the second metal body 430'. The microlayer structure 420' in this embodiment is similar to the microlayer structure 420 shown in FIGS. The two corners of the top transition into free edges extending to the two side walls; and the microlayer structure 420' of the bottom extends laterally in the bottom wall of the housing 400' and transitions into Extends to the free edge of both side walls.

Figures 10-10"' show a front view, a bottom view, a side view and a perspective view from the inside of the housing 400". The housing 400" includes a first metal body 410", a microlayer structure 420", and a second metal body 430". The first metal body 410" and the second metal body 430" are connected through the microlayer structure 420".

Similar to the microlayer structure 420 shown in FIGS. 7-7'', the first metal body 410" includes a flat main body, a top wall and two side walls smoothly connected to form a U-shaped wall. Wherein, the U-shaped wall is perpendicular to the main body of the panel and extends from its edge. The difference is that in this embodiment, the microlayer structure 420" does not extend into the two sidewalls.

Specifically, the second metal body 430" and all the microlayer structures 420" form the bottom wall of the housing 400". In other words, the entire microlayer structures 420" are located in the bottom wall. The microlayer structure 420" extends laterally in the bottom wall of the housing 400", and extends vertically toward the free edge of the bottom wall near the two side ends of the bottom wall, and finally ends at the second metal body 430". free edge. As shown in Figure 11, the microlayer structure 420" is roughly U-shaped. The bottom of the U-shape is adjacent to the flat-shaped main body of the first metal body 410", and its two sides are located near two corners of the bottom of the housing 400".

Figures 12-12"" show a front view, a top view, a bottom view, a side view and a perspective view from the inside of the housing 400"'. The housing 400"' includes a first metal body 410"', two Microlayer structure 420"' and two second metal bodies 430"'. The first metal body 410"' is connected to the two second metal bodies 430"' through two microlayer structures 420"' at the top and bottom respectively .

Referring to Figure 13a and Figure 13b, similar to the microlayer structure 420" shown in Figure 11, two microlayer structures 420"' are approximately U-shaped in the top wall and bottom wall of the housing 400"' respectively. The The bottom of the U-shape adjoins the plate-like main body of the first metal body 410"', and its two sides are located near two corners of the top and bottom of the housing 400"', respectively.

14-14"" show a front view, a top view, a bottom view, a side view and a perspective view from the inside of the housing 500. The housing 500 includes a generally flat metal body 510 , a metal top wall 520 , two metal side walls 530 and a composite bottom wall 540 . The top wall, side wall and bottom wall extend from the edge of the metal body 510 perpendicular to the surface on which the flat plate is located.

Wherein, the composite bottom wall 540 shown is composed of three metal bottom wall sections 541 and two microlayer structures 542 . The three metal bottom wall segments 541 are connected by the two microlayer structures 542 , as shown in FIG. 15 .

In this embodiment, the two microlayer structures 542 are respectively located near two corners in the bottom wall of the casing 500 . It is understood, however, that the microlayer structure may be located in any suitable location in the bottom wall of the housing. Microlayer structures may also be provided in the top or side walls of the housing. Additionally, the number of microlayer structures may be any other suitable number other than two.

16-16"" show a front view, a top view, a bottom view, a side view and a perspective view from the inside of the housing 500'. Housing 500' includes a generally flat metal body 510', two metal side walls 530', a composite top wall 520' and a composite bottom wall 540'. The top wall, side wall and bottom wall extend from the edge of the metal body 510' perpendicular to the surface on which the flat plate rests.

The composite bottom wall 540' is the same as the composite bottom wall 540 shown in Figure 15, i.e. consists of three metal bottom wall sections 541' and two microlayer structures 542'. The three metal bottom wall segments 541' are connected by the two microlayer structures 542'.

The composite top wall 520' is similar to the composite bottom wall 540 shown in Figure 15, i.e., composed of three metal top wall segments 521' and two microlayer structures 522'. The three metal top wall segments 521' are connected by the two microlayer structures 522'.

In the embodiments described above, by setting an appropriate size for the microlayer structure, the width of the filling layer in the microlayer structure is reduced as much as possible, so that the visual difference between the filling layer and the metal part of the shell is minimized, and Preserve the visual overall effect of the shell. In addition, in order to further enhance the visual "integrity" of the surface of the casing formed of different materials, the color difference between the surface color of the filling layer on the casing and the surface color of the metal body and the metal layer is consistent with that of the electronic device casing. Visual requirements for decorative effects on the surface of the body, for example: color compensation for the filling layer; coating a decorative layer on the entire surface of the shell; and/or adding decorative textures to the surface of the shell.

The color compensation of the filling layer can be realized, for example, by adding a dye to the material of the filling layer, so that the color difference between the surface color of the filling layer and the color of the metal surface satisfies 0≤ΔE _ab ≤5.

Color difference refers to the color change between two points in the Lab color mode, that is, the difference in color perception between two colors is expressed numerically. If two color samples are calibrated according to L, a, b, among them, L represents the brightness, the range is 0-100, the darkest is 0, and the brightest is 100; a is the color change from green to red, and the range is - 128～+128, pure green is negative 128, pure red is positive 128, divided into 256 levels; b is a color change from blue to yellow, ranging from -128 to +128, pure blue is negative 128, pure yellow is positive 128, divided into 256 grades, the color calibration of the two color samples is respectively: color sample 1 is calibrated as L1, a1 and b1; color sample 2 is calibrated as L2, a2 and b2. Then the color difference ΔE _ab between two color samples can be calculated by the following formula: color difference ΔE _ab =[(ΔL*) ² +(Δa*) ² +(Δb*) ² ] ^1/2 .

For example, when 0≤ΔE _ab ≤5, when the color difference between the two color samples appears on the surface of the housing of the electronic device, the color difference falls within the acceptable range for the surface decoration effect of the housing.

Further, when 0 ≤ ΔE _ab ≤ 2, when the color difference between the two color samples appears on the surface of the electronic device casing, the color difference is almost invisible when observed with the naked eye, so that the surface of the electronic device casing The "wholeness and integration" effect of the

As mentioned above, the surface of the metal can also be anodized. Referring to Figure 17, a microlayer structure 620 and a metal body 630 are shown. Wherein, the microlayer structure 620 includes a filling layer 621 and a metal sheet 622 . The surfaces of the metal body 630 and the metal sheet 622 have been anodized to form anodized layers 6301 and 6221 respectively. At this time, a coloring agent may be added to the material constituting the filling layer 621 so that the color difference between the surface of the filling layer and the color of the anodized metal surface satisfies 0≦ΔE _ab ≦5.

In addition, for example, when the dyeing agent of the filling layer is not easy to obtain, the color compensation of the filling layer can also be realized by adding a color compensation layer on the surface of the filling layer, so that the color difference between the color of the final filling layer surface and the color of the metal surface satisfies 0≤ΔE _ab ≤5.

Referring to Figure 18, a microlayer structure 720 and a metal body 730 are shown. Wherein, the microlayer structure 720 includes a filling layer 721 and a metal sheet 722 . Surfaces of the metal body 730 and the metal sheet 722 have been anodized to form anodized layers 7301 and 7221 respectively. At this time, the color compensation layer 7211 can be added on the surface of the filling layer 721, so that the color difference between the color of the filling layer surface added with the color compensation layer 7211 and the metal surface undergoing anodic oxidation satisfies 0≤ΔE _ab ≤5.

In order to enhance the overall visual effect of the housing, a decorative layer can be coated on the entire surface of the housing. The entire shell surface includes the surface of the metal body and the surface of the microlayer structure. The decoration layer may include, for example, an electrocoating layer (ED), a painting layer (painting), an optical coating layer and/or a sandblasting layer. After the sandblasting layer is applied, in order to achieve better visual effects, the shell can be further treated with anodic oxidation to obtain more decorative effects and improve the visual integrity of the shell surface.

Referring to Fig. 19, a partially enlarged view of the housing 800 is shown. The housing 800 includes a microlayer structure 820 and a metal body 830, and the microlayer structure 820 includes a filler layer and a metal foil. The entire outer surface of the casing 800 is applied with a decorative layer 840 so that the color difference between the color of the final filled layer surface and the color of the metal surface satisfies 0≤ΔE _ab ≤5.

Referring to Fig. 20, a partial enlarged view of housing 800' is shown. The housing 800' includes a microlayer structure 820' and a metal body 830', and the microlayer structure 820' includes a filler layer and a metal foil. Both the metal body and the metal sheet have been anodized before being combined with the filling layer. The entire outer surface of the housing 800' is applied with a decorative layer 840' so that the color difference between the color of the final filling layer surface and the color of the metal surface satisfies 0≤ΔE _ab ≤5.

Referring to FIGS. 17-20 , the application of the decoration layer makes the color difference between the filling layer area A and the metal area B on the shell surface satisfy 0≤ΔE _ab ≤5.

In addition, in order to enhance the overall visual effect of the housing, decorative lines can also be added to the surface of the housing.

Referring to Figures 21a and 21b, a partial perspective view and an enlarged partial perspective view of housing 900 are shown, respectively. Wherein, the housing 900 includes metal bodies 910 , 930 and a microlayer structure 920 . The outer surface of the housing 900 is provided with linear decorative lines. The linear shape of the decorative texture matches the linear shape of the microlayer structure 920 on the surface of the casing, so that the texture of the microlayer structure can be hidden in the decorative texture, thereby better enhancing the integrity of the casing Visual effect.

Referring to Figures 22a and 22b, there are shown a perspective view of housing 900' and an enlarged partial perspective view thereof, respectively. Wherein, the housing 900' includes metal bodies 910', 930' and a microlayer structure 920'. The outer surface of the housing 900' is provided with arc-shaped decorative lines. The arc-shaped shape of the decorative pattern matches the arc-shaped shape of the microlayer structure 920 ′ on the surface of the shell, so that the texture of the microlayer structure can be hidden in the decorative pattern, thereby better enhancing the shell overall visual effect.

It can be understood that the decorative textures provided on the surface of the housing can be in any appropriate shape, as long as they can hide the texture of the microlayer structure and enhance the overall visual effect of the housing. For example, the decorative pattern may include: linear, hairline, concentric and/or wavy, and so on.

Referring to Figures 23a and 23b, housing 1000 is shown. The casing 1000 includes a first metal body 1010 , a microlayer structure 1020 , a second metal body 1030 and a reinforcing layer 1040 . The reinforcing layer 1040 is made of plastic, for example.

Because the microlayer structure of the metal shell cuts the metal, although the dielectric material is filled between the metal gaps, it still cannot guarantee that the entire shell has the strength before cutting.

In order to enhance the strength of the metal shell, structural reinforcement components can be added to the metal shell. The optional method is: adding a plastic support structure through injection molding. As shown in Figures 23a and 23b, the plastic part can support the metal shell and increase the strength of the shell in the area where the microlayer structure is located.

When increasing the plastic support structure through injection molding, the surface of the metal shell can be nano-treated first to generate nano-micropores of 5-100um on the metal surface; during injection molding, thermoplastic plastic penetrates into the nano-micropores; after injection molding is completed and the plastic is cooled, The plastic that enters the nanopores forms an "anchor bolt" with the micropores and combines together. This method of treating the metal surface first and then injection molding can support the large-area plane combination of plastic and metal, and simplifies the structure of the metal shell.

The casing made by the above method has a bonding strength of metal and plastic up to 20MPa-50MPa, which fully meets the requirements of electronic digital products.

The present utility model has been described above with reference to the embodiments, but it should be pointed out that the above-mentioned embodiments are all illustrative rather than restrictive. The various technical features described in the above-mentioned embodiments may be combined and used in different embodiments without conflicting with each other. And those skilled in the art can recognize that without departing from the spirit and scope of the present utility model, various changes can be made, and these changes should be included within the scope of the present utility model.

Claims (19)

1. A housing for an electronic device, the housing comprising at least one metal body and at least one microlayer structure, the microlayer structure and the metal body forming part of an antenna of the electronic device, and the Both ends of the microlayer structure extend to at least one edge of the periphery of the shell, wherein the microlayer structure includes at least one metal layer and at least one filling layer, and the metal layer and the filling layer are laminated. 2. The housing of claim 1, wherein: The casing also includes a reinforcement layer made of insulating material, and the reinforcement layer is adhered to the inside and/or outside of the metal body and the microlayer structure. 3. The housing of claim 1, wherein: The shell is substantially flat, and its inner surface and/or outer surface are flat or arc-shaped. 4. The housing of claim 1, wherein: The housing includes a substantially flat main body and a frame extending from the periphery of the main body along a direction substantially perpendicular to the plane where the main body is located. 5. The housing of claim 4, wherein: The microlayer structure is located at least partially within one or more of the frames. 6. The casing according to any one of claims 1-4, wherein, The microlayer structure is located near one or more edges of the shell. 7. The casing according to any one of claims 1-5, wherein, The color difference ΔE _ab between the surface color of the filling layer and the surface colors of the metal body and the metal layer satisfies: 0≤ΔE _ab ≤5. 8. The housing of claim 7, wherein: The filling layer contains a dye, so that the color difference ΔE _ab between the surface color of the filling layer and the surface color of the metal body satisfies: 0≤ΔE _ab ≤5. 9. The housing of claim 7, wherein: The exposed surface of the filling layer is provided with a color compensation layer, so that the color difference ΔE _ab between the surface color of the color compensation layer and the surface colors of the metal body and the metal layer satisfies: 0≤ΔE _ab ≤ 5. 10. The housing of claim 7, wherein: The color difference ΔE _ab between the surface color of the filling layer and the surface colors of the metal body and the metal layer satisfies: 0≤ΔE _ab ≤2. 11. The casing according to any one of claims 1-5, wherein, The outer surface of the shell is coated with a decorative layer, so that the color difference ΔE _ab between the surface color of the decorative layer on the filling layer and the surface color of the decorative layer on the metal body satisfies: 0≤ΔE _ab ≤ 5. 12. The housing of claim 11, wherein: The color difference ΔE _ab between the surface color of the decoration layer on the filling layer and the surface color of the decoration layer on the metal body satisfies: 0≤ΔE _ab ≤2. 13. The housing of claim 11, wherein: The decorative layer is an electro-adornment coating, a paint layer, an optical coating layer or a sandblasting layer. 14. The casing of any one of claims 1-5, wherein: The outer surface of the shell is provided with decorative lines. 15. The housing of claim 11, wherein: The decorative lines are linear, hairline, concentric or wavy. 16. The housing of any one of claims 1-5, wherein: Each microlayer structure includes 5-10 filling layers, and the filling layers and the metal layers are stacked alternately. 17. The housing of any one of claims 1-5, wherein: The filling layer has a width of 10-100 μm. 18. The housing of any one of claims 1-5, wherein: The width of the metal layer is 0.1-1.0mm. 19. An electronic device wherein, The electronic device comprises a casing according to any one of claims 1-18.