CN113497834A - Metal shell assembly, manufacturing method thereof and electronic equipment - Google Patents
Metal shell assembly, manufacturing method thereof and electronic equipment Download PDFInfo
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- CN113497834A CN113497834A CN202010201925.8A CN202010201925A CN113497834A CN 113497834 A CN113497834 A CN 113497834A CN 202010201925 A CN202010201925 A CN 202010201925A CN 113497834 A CN113497834 A CN 113497834A
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Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/22—Metallic printing; Printing with powdered inks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/30—Printing on other surfaces than ordinary paper on organic plastics, horn or similar materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/38207—Contact thermal transfer or sublimation processes characterised by aspects not provided for in groups B41M5/385 - B41M5/395
- B41M5/38214—Structural details, e.g. multilayer systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0274—Details of the structure or mounting of specific components for an electrical connector module
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The application provides a metal shell assembly, a manufacturing method thereof and electronic equipment. The metal shell assembly includes: the metal shell comprises a metal shell body, wherein the metal shell body is provided with at least one fracture which extends from the inner surface of the metal shell body to the outer surface of the metal shell body; the plastic layer is arranged in the fracture, the inner surface of the plastic layer is flush with the inner surface of the metal shell body, and the thickness of the plastic layer is smaller than that of the metal shell body; and the metal-like layer is arranged in the fracture and is positioned on the outer surface of the plastic layer, wherein the color difference value delta E between the appearance color of the metal-like layer and the appearance color of the metal shell body is less than or equal to 1. From this, the setting of imitative metal level can compensate the drop of the outward appearance visual effect of fracture department metal casing body for the holistic outward appearance visual effect of metal casing subassembly is even unanimous, does not have outward appearance visual drop, realizes the all-metal outward appearance effect of metal casing subassembly, and then promotes the outward appearance expressive force who uses this metal casing subassembly.
Description
Technical Field
The invention relates to the technical field of electronic equipment, in particular to a metal shell assembly, a manufacturing method thereof and electronic equipment.
Background
The metal shell of the mobile phone needs to be cut off from the whole metal to form a fracture due to the shielding of the antenna signal so as to prevent the antenna signal from being shielded, and then injection molding plastic is usually adopted as a communicating material at the fracture, so that the mobile phone metal shell is simple to process and low in cost. However, the metal surface treatment is usually anodic oxidation, and the plastic remains in its original color without treatment, which results in a color difference between the metal and the plastic. If the width size of the plastic is small (currently, 0.8-1.2mm is usually used), the visual effect is not large, but if the antenna requirement is higher, for example, a 5G mobile phone, the width size of the plastic is greatly increased, the difference between the plastic and the metal is obvious, the integral visual effect of the appearance of the mobile phone is seriously affected, and the visual difference of the appearance is formed.
Therefore, research on the metal case assembly is awaited.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide a metal housing assembly, which has a consistent visual appearance without visual drop.
In one aspect of the present application, a metal housing assembly is provided. According to an embodiment of the application, the metal housing assembly comprises: a metal shell body having at least one fracture extending from an inner surface of the metal shell body to an outer surface of the metal shell body; the plastic layer is arranged in the fracture, the inner surface of the plastic layer is flush with the inner surface of the metal shell body, and the thickness of the plastic layer is smaller than that of the metal shell body; and the imitation metal layer is arranged in the fracture and is positioned on the outer surface of the plastic layer, wherein the color difference value delta E between the appearance color of the imitation metal layer and the appearance color of the metal shell body is less than or equal to 2. Therefore, the arrangement of the metal-like layer can make up the difference of the appearance visual effect of the metal shell body at the fracture, so that the overall appearance visual effect of the metal shell assembly is uniform and consistent, no appearance visual difference exists, the all-metal appearance effect of the metal shell assembly is realized, and the appearance expressive force of the metal shell assembly is further improved; moreover, the metal imitation layer does not shield antenna signals.
In another aspect of the present application, the present application provides a method of making a metal shell assembly. According to an embodiment of the application, a method of making a metal housing assembly comprises: providing a metal shell body having at least one fracture extending from an inner surface of the metal shell body to an outer surface of the metal shell body; forming a plastic layer in the fracture, wherein the inner surface of the plastic layer is flush with the inner surface of the metal shell body, and the thickness of the plastic layer is smaller than that of the metal shell body; and forming a metal-like layer in the fracture, wherein the metal-like layer is positioned on the outer surface of the plastic layer, and the color difference value delta E between the appearance color of the metal-like layer and the appearance color of the metal shell body is less than or equal to 2. Therefore, in the manufacturing method, the arrangement of the metal-like layer can make up the difference of the appearance visual effect of the metal shell body at the fracture, so that the overall appearance visual effect of the metal shell assembly is uniform and consistent, no appearance visual difference exists, the all-metal appearance effect of the metal shell assembly is realized, and the appearance expressive force of the metal shell assembly is further improved; moreover, the metal imitation layer is arranged to not shield antenna signals; moreover, the preparation method is simple, accurate, easy to implement, mature in process and convenient for industrial production.
In yet another aspect of the present application, an electronic device is provided. According to an embodiment of the present application, the electronic device includes: the metal housing assembly described above; the display screen assembly is connected with the metal shell assembly, and an installation space is defined between the display screen assembly and the metal shell assembly; the main board is arranged in the mounting space and is electrically connected with the display screen assembly; the antenna assembly is arranged on the surface, close to the display screen assembly, of the metal shell and is electrically connected with the mainboard. Therefore, the electronic equipment has the appearance effect of all metal, has no visual fall of appearance and has better appearance expressive force. Those skilled in the art will appreciate that the electronic device has all of the features and advantages of the metal housing assembly described above and will not be redundantly described here.
Drawings
Fig. 1 is a schematic structural diagram of a metal housing assembly according to an embodiment of the present application.
FIG. 2 is a cross-sectional view along AA' of FIG. 1.
Fig. 3 is a schematic structural diagram of another metal housing assembly according to an embodiment of the present application.
Fig. 4 is a flow chart of a method of making a metal shell assembly according to yet another embodiment of the present application.
Fig. 5 is a schematic structural diagram of a metal shell body in another embodiment of the present application.
FIG. 6 is a cross-sectional view along AA' of FIG. 5.
Fig. 7 is a schematic structural diagram of a metal housing assembly according to another embodiment of the present application.
Fig. 8 is a schematic structural diagram of a metal housing assembly according to another embodiment of the present application.
FIG. 9 is a schematic structural diagram of a metal shell assembly manufactured by a stamping device according to an embodiment of the present application.
FIG. 10 is a schematic diagram of a stamping apparatus used to fabricate a metal shell assembly according to an embodiment of the present application.
Fig. 11 is a schematic structural diagram of an electronic device in another embodiment of the present application.
Detailed Description
The following describes embodiments of the present invention in detail. The following examples are illustrative only and are not to be construed as limiting the invention. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.
In one aspect of the present application, a metal housing assembly is provided. Referring to fig. 1 (fig. 1 is a plan view of a metal case assembly as viewed from an external appearance surface thereof) and fig. 2 (fig. 2 is a sectional view along AA' of fig. 1), the metal case assembly 100 includes: a metal shell body 10, wherein the metal shell body 10 has at least one fracture 11 (for avoiding the antenna signal of the electronic device from being shielded by the metal shell body), and the fracture 11 extends from an inner surface 12 of the metal shell body 10 to an outer surface 13 of the metal shell body; the plastic layer 20 is arranged in the fracture 11, the inner surface 21 of the plastic layer 20 is flush with the inner surface 12 of the metal shell body 10, and the thickness of the plastic layer 20 is smaller than that of the metal shell body 10; the metal-like layer 30 is disposed in the fracture 11 and located on the outer surface 22 of the plastic layer 20, wherein a color difference value Δ E between an appearance color of the metal-like layer and an appearance color of the metal shell body is less than or equal to 2 (for example, Δ E is 2, 1.8, 1.6, 1.4, 1.2, 1, 0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, 0.1, and the like). Therefore, the arrangement of the metal-like layer can make up the difference of the appearance color visual effect of the metal shell body at the fracture, so that the overall appearance color visual effect of the metal shell assembly is uniform and consistent, the appearance color visual difference is avoided, the all-metal appearance effect of the metal shell assembly is realized, and the appearance expressive force of the metal shell assembly is further improved; moreover, the metal imitation layer does not shield antenna signals.
The "outer surface" refers to a surface of a structure close to the appearance surface of the metal shell assembly, and the "inner surface" refers to a surface of a structure distant from the appearance surface of the metal shell assembly. Such as: the outer surface 13 of the metal shell body 10 refers to the surface of the metal shell body close to the appearance surface of the metal shell assembly, and the inner surface 12 of the metal shell body 10 refers to the surface of the metal shell body away from the appearance surface of the metal shell assembly; the outer surface 22 of the plastic layer 20 is the surface of the plastic layer 20 close to the appearance surface of the metal housing component, and the inner surface 21 of the plastic layer 20 is the surface of the plastic layer 20 far away from the appearance surface of the metal housing component; the outer surface 31 of the metal-like layer 30 is the surface of the metal-like layer 30 adjacent to the appearance surface of the metal housing component.
Furthermore, the color difference value delta E between the appearance color of the metal-like layer and the appearance color of the metal shell body is less than or equal to 0.4. Therefore, in appearance, the appearance color of the metal-like layer is closer to that of the metal shell body, the consistency of the appearance colors of the metal-like layer and the metal shell body is further improved, and the appearance effect of all metal of the metal shell assembly is better realized.
Wherein, the color difference value is obtained through the color difference appearance test, specifically: the L, A, B values of the appearance surface color of the imitation metal layer are respectively tested as L1, A1 and B1 by color difference, the L, A, B values of the appearance surface color of the metal shell body are respectively tested as L2, A2 and B2 by color difference, and then the formula delta E is equal to [ (L1-L2)2+(A1-A2)2+(B1-B2)2]1/2。
Wherein, the concrete material of metal casing body does not have special requirement, and the skilled person in the art can select according to actual conditions is nimble. For example, iron, aluminum alloy, magnesium alloy, stainless steel, or the like can be selected. Furthermore, the metal shell body is subjected to anodic oxidation treatment in advance, so that the metal luster of the metal shell assembly is improved.
Wherein, the fracture 11 in the metal housing assembly is provided to prevent the antenna signal of the electronic device from being shielded, and a person skilled in the art can select a specific position of the fracture 11 according to a specific position of the antenna in the electronic device (the fracture needs to expose at least a part of the antenna). In some embodiments, referring to fig. 1, the break may be provided in the middle frame 15 portion of the metal shell assembly body 10; in other embodiments, the break may also be provided in the rear cover 14 portion of the technology housing body 10 (not shown en route).
Further, referring to fig. 1 and fig. 2, the width D of the fracture is 0.8 to 20 mm (for example, 0.8 mm, 1 mm, 1.5 mm, 2mm, 4 mm, 5 mm, 8 mm, 10 mm, 13 mm, 15 mm, 17 mm, or 20 mm), so that the fracture with the above width can meet the requirement of various electronic devices such as 4G or 5G on preventing the antenna signal from being shielded; the fracture with the width is simple in manufacturing and convenient to implement and operate; if the width D of the fracture is less than 0.8 mm, the operation is inconvenient in the manufacturing process.
Furthermore, the specific material of the plastic layer has no special requirements, and the person skilled in the art can flexibly select the material according to the actual situation. In some embodiments, specific materials of the plastic layer include, but are not limited to, PET (polyethylene terephthalate), PC (polycarbonate), PMMA (polymethyl methacrylate), or ABS.
Further, referring to fig. 2, the outer surface 31 of the pseudo-metal layer 30 is flush with the outer surface 13 of the metal shell body 10. From this, the imitative metal level flushes with the surface of metal casing body, can effectively guarantee the planarization of the whole surface of metal casing subassembly to improve the whole outward appearance effect of metal casing subassembly. It should be noted that, for process reasons, it may be difficult to achieve a completely flush state between the outer surface 31 of the metal-like layer 30 and the outer surface 13 of the metal shell body 10, and therefore, "flush" herein means "substantially flush", and a user may visually and tactually feel that the outer surface 31 of the metal-like layer 30 and the outer surface 13 of the metal shell body 10 are in a flush state.
Further, the imitation metal layer is prepared by transferring a part of the structure of the electrochemical aluminum foil onto the surface of the plastic layer by an electrochemical aluminum hot stamping process, wherein, referring to fig. 3, the imitation metal layer 30 includes: an adhesive layer 32, the adhesive layer 32 being disposed on the outer surface 22 of the plastic layer 20; an aluminum plating layer 33, wherein the aluminum plating layer 33 is arranged on the surface of the adhesion layer 32 far away from the plastic layer 20; and a coloring layer 34, wherein the coloring layer 34 is arranged on the surface of the aluminum coating layer 33 far away from the plastic layer 20. Wherein, can adjust the colour of dyed layer according to the metal colour of metal casing body, combine the aluminized layer again to make imitative metal layer show the metal color unanimous with metal casing body, and have better metallic luster. When the outer surface 31 of the metal-like layer 30 is required to be flush with the outer surface 13 of the metal shell body 10, the surface of the coloring layer 34 away from the plastic layer 20 is required to be flush with the outer surface 13 of the metal shell body 10.
Further, the colored layer includes a resin and a dye (the dye determines the color of the colored layer). In some embodiments, the coloring layer is a single-layer structure, that is, the dye is directly added into the resin and uniformly mixed, wherein the dye accounts for less than or equal to 10% of the coloring layer by mass, so that the performance of the resin can be ensured not to be affected; in other embodiments, the coloring layer is a multilayer laminated structure, that is, includes a resin layer (such as polyurethane), a dye layer, and a protective layer (such as a UV protective layer) that are sequentially laminated.
Wherein, connect the colouring to be hot melt adhesive layer, mainly be the adhesive action, with electrochemical aluminium foil adhesion to the plastic layer on the surface to improve the cohesion between plastic layer and the imitative metal layer, and then improve the structural stability of metal casing subassembly.
Further, the thickness of the imitation metal layer is 8.5-56 micrometers, such as 8.51 micrometers, 10.52 micrometers, 15.52 micrometers, 20.01 micrometers, 25.02 micrometers, 26.01 micrometers, 31.01 micrometers, 36.01 micrometers, 41.02 micrometers, 45.02 micrometers, 46.01 micrometers, 50.01 micrometers and 55.01 micrometers. Wherein, when the metal-like layer is formed by an electrochemical aluminum foil, the thickness of the coloring layer is 8-50 micrometers (such as 8 micrometers, 10 micrometers, 15 micrometers, 20 micrometers, 25 micrometers, 30 micrometers, 35 micrometers, 40 micrometers, 45 micrometers or 50 micrometers); the thickness of the aluminum coating is 0.01-0.02 micron; the thickness of the subsequent layer is 0.5-5 microns (such as 0.5 micron, 1 micron, 2 microns, 3 microns, 4 microns or 5 microns). Therefore, the imitation metal layer with the thickness has better service performance.
Furthermore, a gap is formed between the metal imitation layer and the metal shell body, namely the metal imitation layer and the metal shell body are not in contact connection, and a gap is formed between the metal imitation layer and the metal shell body. Thereby, the antenna signal is further prevented from being shielded. Wherein, the gap distance is greater than 0 and less than or equal to 0.03 micrometer (for example, the gap distance is 0.01 micrometer, 0.02 micrometer or, 0.03 micrometer). Therefore, the antenna signal can be better ensured not to be shielded, and the gap of the distance is not easy to be visually perceived, so that the appearance of the metal shell assembly is not adversely affected.
In another aspect of the present application, the present application provides a method of making a metal shell assembly. According to an embodiment of the present application, referring to fig. 4, a method of making a metal housing assembly includes:
and S100, providing a metal shell body 10, wherein the metal shell body 10 is provided with at least one fracture 11, the structural schematic diagram refers to FIG. 5 and FIG. 6 (FIG. 6 is an interface diagram along AA' in FIG. 5), and the fracture 11 extends from an inner surface 12 of the metal shell body 10 to an outer surface 13 of the metal shell body. The metal housing body in fig. 5 includes a rear cover 14 and a middle frame 15, and the fracture 11 is provided in the middle frame 15.
The forming method of the fracture 11 has no special requirements, and those skilled in the art can flexibly select the method according to actual conditions, for example, the fracture can be obtained by cutting with a laser method.
Wherein, the metal shell body is subjected to grinding, polishing, sand blasting and anodic oxidation treatment in advance, so that the metal luster of the metal shell component can be greatly improved.
S200, forming a plastic layer 20 in the fracture 11, wherein an inner surface 21 of the plastic layer 20 is flush with an inner surface 12 of the metal shell body 10, and the thickness of the plastic layer 20 is smaller than that of the metal shell body 10, and the structural schematic diagram refers to FIG. 7.
Referring to fig. 7, the width D of the fracture is 0.8-20 mm (for example, 0.8 mm, 1 mm, 1.5 mm, 2mm, 4 mm, 5 mm, 8 mm, 10 mm, 13 mm, 15 mm, 17 mm, or 20 mm), so that the fracture with the above width can meet the requirement of various electronic devices such as 4G or 5G on preventing antenna signals from being shielded; the fracture with the width is simple in manufacturing and convenient to implement and operate; if the width D of the fracture is less than 0.8 mm, the operation is inconvenient in the manufacturing process.
Further, referring to fig. 8, the forming step of the plastic layer 20 includes:
the method comprises the following steps: the fracture 11 is filled with a plastic filler 25, an inner surface 251 of the plastic filler 25 is flush with the inner surface 12 of the metal housing body 10, and a thickness of the plastic filler 25 is equal to a thickness of the metal housing body 10. Wherein, the fracture can be filled with plastic filler 25 by plastic injection molding.
Step two: the plastic filler 25 is reduced in thickness to obtain the plastic layer 20. Wherein, can adopt laser radium carving, for example carbon dioxide laser, carry out attenuate processing to the plastic filler, do not handle metal casing body, wherein, the thickness that the required attenuate of plastic filler (the thickness of the imitative metal level that follow-up required formation promptly) is 8.5 ~ 56 microns.
S300, forming a metal-like layer 30 in the fracture 11, wherein the metal-like layer 30 is located on the outer surface 22 of the plastic layer 20, and a color difference value delta E between the appearance color of the metal-like layer 30 and the appearance color of the metal shell body 10 is less than or equal to 2, and the structural schematic diagram refers to FIGS. 1 and 2.
Further, referring to fig. 2, the outer surface 31 of the pseudo-metal layer 30 is flush with the outer surface 13 of the metal shell body 10. From this, the imitative metal level flushes with the surface of metal casing body, can effectively guarantee the planarization of the whole surface of metal casing subassembly to improve the whole outward appearance effect of metal casing subassembly.
In this step, the step of forming the dummy metal layer includes:
the method comprises the following steps: an electrochemical aluminum foil is provided.
Wherein, electrochemical aluminium foil is including the substrate (polyester film) that stacks gradually the setting, from type layer, dyed layer, aluminize layer and the layer of following, and wherein, the substrate plays the supporting role, makes dyed layer, aluminize layer and the layer of following break away from the substrate rapidly and shifts to the plastic layer on the surface from the type layer. Wherein, the thickness of the substrate is 8 to 25 microns, the thickness of the release layer is 0.01 to 0.05 micron, the thickness of the coloring layer is 8 to 50 microns, the thickness of the aluminum coating layer is 0.01 to 0.02 micron, and the thickness of the adhesion layer is 0.5 to 5 microns.
Step two: transferring an adhesive layer 32, an aluminum-plated layer 33 and a coloring layer 34 in the electrochemical aluminum foil onto the outer surface of the plastic layer by using an electrochemical aluminum hot stamping process, wherein the adhesive layer 32 is located on the outer surface 22 of the plastic layer 20; the aluminized layer 33 is arranged on the surface of the adhesion layer 32 far away from the plastic layer 20; the coloring layer 34 is disposed on the surface of the aluminum plating layer 33 away from the plastic layer 20, and the structure schematic diagram refers to fig. 3.
In the step of forming the metal-like layer, referring to fig. 9 and 10, the electrochemical aluminum foil 2 (for example, conveyed by a reel) is placed in the foil placing device 1 of the hot stamping device, the heater 3 of the hot stamping device heats the hot stamping head 4, then the hot stamping head 4 heats the adhesion layer 32 in the electrochemical aluminum foil 2, and the adhesion layer, the aluminum plating layer and the coloring layer in the electrochemical aluminum foil 2 are transferred to the surface of the plastic layer 20 by the hot stamping device, so as to obtain the workpiece 5 (or the metal shell assembly 100), wherein the adhesion layer is hot melt adhesive, and the adhesion layer can be well adhered to the plastic layer after being heated, so that the bonding force between the adhesion layer and the plastic layer is greatly improved. The stamping equipment also comprises a foil collecting device 6 which is used for collecting the electrochemical aluminum foil after transfer printing.
According to the embodiment of the application, in the manufacturing method, the arrangement of the metal-like layer can make up the difference of the appearance visual effect of the metal shell body at the fracture, so that the overall appearance visual effect of the metal shell assembly is uniform and consistent, no appearance visual difference exists, the all-metal appearance effect of the metal shell assembly is realized, and the appearance expressive force of the metal shell assembly is further improved; moreover, the metal imitation layer is arranged to not shield antenna signals; moreover, the preparation method is simple, accurate, easy to implement, mature in process and convenient for industrial production.
In yet another aspect of the present application, an electronic device is provided. According to an embodiment of the present application, referring to fig. 11, the electronic device 100 includes: the metal housing assembly 100 described above; the display screen assembly 200, the display screen assembly 200 is connected with the metal shell assembly 100, and an installation space is defined between the display screen assembly 200 and the metal shell assembly 100; and a main board (not shown in fig. 11) disposed in the installation space and electrically connected to the display screen assembly; and an antenna assembly (not shown in FIG. 11) which is arranged on the surface of the metal shell close to the display screen assembly and is electrically connected with the main board, wherein at least one part of the antenna assembly is in positive correspondence with the fracture of the metal shell body. Therefore, the electronic equipment has the appearance effect of all metal, has no visual fall of appearance and has better appearance expressive force. Those skilled in the art will appreciate that the electronic device has all of the features and advantages of the metal housing assembly described above and will not be redundantly described here.
It will be understood by those skilled in the art that the above-mentioned "at least a portion of the antenna assembly is in positive correspondence with the break in the metal housing body" means that the break in the metal housing body can expose at least a portion of the antenna assembly.
The specific type of the electronic device has no special requirement, and those skilled in the art can flexibly select the electronic device according to actual situations, and in some embodiments, the specific type of the electronic device includes, but is not limited to, an electronic device such as a mobile phone (as shown in fig. 11), a notebook, an iPad, a kindle, a game console, and the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (12)
1. A metal shell assembly, comprising:
a metal shell body having at least one fracture extending from an inner surface of the metal shell body to an outer surface of the metal shell body;
the plastic layer is arranged in the fracture, the inner surface of the plastic layer is flush with the inner surface of the metal shell body, and the thickness of the plastic layer is smaller than that of the metal shell body;
and the imitation metal layer is arranged in the fracture and is positioned on the outer surface of the plastic layer, wherein the color difference value delta E between the appearance color of the imitation metal layer and the appearance color of the metal shell body is less than or equal to 2.
2. The metal shell assembly of claim 1, wherein the difference between the apparent color of the metal-like layer and the apparent color of the metal shell body is Δ E ≦ 0.4.
3. The metal shell assembly of claim 1, wherein an outer surface of the imitation metal layer is flush with an outer surface of the metal shell body.
4. The metal shell assembly of claim 1, wherein the imitation metal layer comprises:
an adhesive layer disposed on an outer surface of the plastic layer;
the aluminum plating layer is arranged on the surface of the adhesive layer far away from the plastic layer;
and the coloring layer is arranged on the surface of the aluminum-plated layer far away from the plastic layer.
5. The metal shell assembly of claim 1 or 2, wherein the discontinuity has a width of 0.8 to 20 mm.
6. The metal shell assembly of claim 1 or 2, wherein there is a gap between the imitation metal layer and the metal shell body.
7. The metal shell assembly of claim 3, wherein the metal imitation layer has a thickness of 8.5-56 microns.
8. A method of making a metal shell assembly, comprising:
providing a metal shell body having at least one fracture extending from an inner surface of the metal shell body to an outer surface of the metal shell body;
forming a plastic layer in the fracture, wherein the inner surface of the plastic layer is flush with the inner surface of the metal shell body, and the thickness of the plastic layer is smaller than that of the metal shell body;
and forming a metal-like layer in the fracture, wherein the metal-like layer is positioned on the outer surface of the plastic layer, and the color difference value delta E between the appearance color of the metal-like layer and the appearance color of the metal shell body is less than or equal to 2.
9. The method of claim 8, wherein an outer surface of the imitation metal layer is flush with an outer surface of the metal shell body.
10. The method of claim 8 or 9, wherein the forming of the plastic layer comprises:
filling a plastic filler in the fracture, wherein the inner surface of the plastic filler is flush with the inner surface of the metal shell body, and the thickness of the plastic filler is equal to that of the metal shell body;
and thinning the thickness of the plastic filler so as to obtain the plastic layer.
11. The method of claim 8 or 9, wherein the step of forming the metal-like layer comprises:
providing an electrochemical aluminum foil;
transferring the adhesive layer, the aluminum-plated layer and the coloring layer in the electrochemical aluminum foil to the outer surface of the plastic layer by an electrochemical aluminum hot stamping process,
wherein the adhesive layer is positioned on the outer surface of the plastic layer; the aluminum-plated layer is arranged on the surface of the adhesive layer far away from the plastic layer; the coloring layer is arranged on the surface of the aluminum plating layer far away from the plastic layer.
12. An electronic device, comprising:
the metal shell assembly of any one of claims 1 to 7;
the display screen assembly is connected with the metal shell assembly, and an installation space is defined between the display screen assembly and the metal shell assembly; and
the main board is arranged in the mounting space and is electrically connected with the display screen assembly;
the antenna assembly is arranged on the surface, close to the display screen assembly, of the metal shell and is electrically connected with the mainboard, wherein at least one part of the antenna assembly is in positive correspondence with the fracture of the metal shell body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010201925.8A CN113497834A (en) | 2020-03-20 | 2020-03-20 | Metal shell assembly, manufacturing method thereof and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010201925.8A CN113497834A (en) | 2020-03-20 | 2020-03-20 | Metal shell assembly, manufacturing method thereof and electronic equipment |
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