CN114697430A - Shell assembly, preparation method thereof and electronic equipment - Google Patents
Shell assembly, preparation method thereof and electronic equipment Download PDFInfo
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- CN114697430A CN114697430A CN202011632152.5A CN202011632152A CN114697430A CN 114697430 A CN114697430 A CN 114697430A CN 202011632152 A CN202011632152 A CN 202011632152A CN 114697430 A CN114697430 A CN 114697430A
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- plastic substrate
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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
- H04M1/0202—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
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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
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
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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
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0279—Improving the user comfort or ergonomics
- H04M1/0283—Improving the user comfort or ergonomics for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The application provides a shell assembly, a preparation method thereof and an electronic device. The shell assembly comprises a plastic substrate, wherein the plastic substrate comprises at least one layer of colored plate. From this, the setting of coloured panel can be so that plastic substrate itself has the colour, provide the outward appearance color for casing assembly, thereby need not to set up the colour printing ink layer that is used for embodying casing assembly outward appearance color in the casing assembly, so, the brightness and the fullness of casing assembly outward appearance colour can be improved, casing assembly's whole thickness can also be reduced, save preparation process and raw materials cost, and can also eliminate the harmful effects (such as dirt point, granule, broken filament, brilliant defect such as bad) that bring because of setting up the printing ink layer, improve the straight through rate (can improve 5% at least) and the product yield of product.
Description
Technical Field
The present application relates to the field of electronic technologies, and in particular, to a housing assembly, a manufacturing method thereof, and an electronic device.
Background
At present, the color of the mobile phone shell is generally that the inner surface of the shell substrate is sprayed with ink, so that the appearance of the shell assembly has a preset color, but because the ink layer is thinner, when the shell is viewed from the front, the color of the shell is thinner, and the transparency is insufficient.
Therefore, research on the housing 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 housing assembly having a housing with a better color transparency.
In one aspect of the present application, a housing assembly is provided. According to an embodiment of the present application, the housing assembly includes a plastic substrate including at least one layer of colored sheet material. From this, the setting of coloured panel can be so that plastic substrate itself has the colour, provide the outward appearance color for casing assembly, thereby need not to set up the colour printing ink layer that is used for embodying casing assembly outward appearance color in the casing assembly, so, the brightness and the fullness of casing assembly outward appearance colour can be improved, casing assembly's whole thickness can also be reduced, save preparation process and raw materials cost, and can also eliminate the harmful effects (such as dirt point, granule, broken filament, brilliant defect such as bad) that bring because of setting up the printing ink layer, improve the straight through rate (can improve 5% at least) and the product yield of product.
In one aspect of the present application, a method of making a housing assembly is provided. According to an embodiment of the present application, a method of manufacturing a housing assembly includes a step of manufacturing a plastic substrate, the step of manufacturing the plastic substrate including: at least one layer of colored sheet material is formed. From this, the formation of coloured panel can be so that the plastic substrate itself has the colour, provide the outward appearance color for casing subassembly, thereby need not to set up the colour printing ink layer that is used for embodying casing subassembly outward appearance color in the casing subassembly, so, can improve the brightness of passing through of casing subassembly outward appearance colour, can also reduce casing subassembly's whole thickness, save preparation process and raw materials cost, and can also eliminate the harmful effects (for example dust point, granule, broken filament, brilliant defect such as bad) that bring because of setting up the printing ink layer, improve the straight through rate (can improve 5% at least) and the product yield of product.
In one aspect of the present application, an electronic device is provided. According to an embodiment of the present application, an electronic device includes: the housing assembly described above; the display screen assembly is connected with the shell assembly, and an installation space is defined between the display screen assembly and the shell assembly; and the mainboard is arranged in the installation space and is electrically connected with the display screen assembly. Therefore, the appearance color and the transparency of the shell assembly of the electronic equipment are good. Those skilled in the art will appreciate that the electronic device has all of the features and advantages of the housing assembly previously described and will not be redundantly described here.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a plastic substrate according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural view of a housing assembly according to another embodiment of the present application;
FIG. 3 is a schematic structural view of a housing assembly according to yet another embodiment of the present application;
FIG. 4 is a graph of light transmittance through a plastic substrate according to yet another embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of an electronic device in another embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In one aspect of the present application, a housing assembly is provided. According to an embodiment of the application, the housing assembly comprises a plastic substrate comprising at least one layer of colored sheet material. From this, the setting of coloured panel can be so that plastic substrate itself has the colour, provide the outward appearance color for casing assembly, thereby need not to set up the colour printing ink layer that is used for embodying casing assembly outward appearance color in the casing assembly, so, the brightness and the fullness of casing assembly outward appearance colour can be improved, casing assembly's whole thickness can also be reduced, save preparation process and raw materials cost, and can also eliminate the harmful effects (such as dirt point, granule, broken filament, brilliant defect such as bad) that bring because of setting up the printing ink layer, improve the straight through rate (can improve 5% at least) and the product yield of product.
In some embodiments, the plastic substrate may comprise only one layer of sheet material, i.e., a colored sheet material; in other embodiments, the plastic substrate is a composite board, that is, the plastic substrate includes at least two layers of boards stacked one on another, and at least one of the at least two layers of boards is a colored board. Wherein, the material for forming the plastic substrate includes but is not limited to at least one of PET, PMMA and PC.
When the plastic substrate is a composite plate, for example, a PC/PMMA composite plate, and both PC and PMMA are colored plates, the colors of the two can be the same or different, and those skilled in the art can flexibly select the color according to the actual design condition, which is not limited herein.
Wherein, the colored sheet material comprises transparent plastic resin and colorant. Thus, the transparent plastic resin is dyed by the colorant to obtain a colored plate, and the plastic base material with color is obtained. Further, the colored sheet material includes, in addition to the colorant and the transparent plastic resin: carrier particles dyed by the colorant. Thus, the colored carrier particles are mixed with the transparent plastic resin to form a colored sheet.
According to the embodiment of the present application, the light transmittance of the plastic substrate to visible light is 83% to 95%, such as 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 92%, 95%. Therefore, the colored plastic substrate still has higher light transmittance, and can not shield structures such as an appearance film layer arranged on the inner surface of the plastic substrate, and further can not influence the appearance effects such as appearance texture, glossiness and the like of the shell assembly.
Wherein, the thickness of the plastic base material is 0.6 mm-0.8 mm, such as 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8 mm. Therefore, the plastic substrate with the thickness has better mechanical strength, full color, high transparency and better light transmittance.
According to an embodiment of the present application, when the housing assembly is used in an electronic device, referring to fig. 1, the plastic substrate 10 has an outer surface 11 and an inner surface 12 opposite to each other, and the outer surface 11 has a texture. Therefore, the outer surface of the plastic substrate is provided with the texture, namely the plastic substrate is provided with the texture, and compared with the structure that the texture layer is formed on the outer surface (for example, the texture layer is formed on the outer surface through UV glue), the technical scheme of the application can greatly improve the wear resistance of the texture, the hand feeling is better, the smoothness and the fineness are realized, and the flashing visual effect is better. It should be noted that, the "outer surface" refers to a surface of the plastic substrate away from the inside of the electronic device, that is, a surface of the plastic substrate away from the display screen assembly in the electronic device, and the "inner surface" refers to a surface of the plastic substrate close to the inside of the electronic device, that is, a surface of the plastic substrate close to the display screen assembly in the electronic device.
Wherein the depth d1 of the texture is 20 microns to 30 microns, such as 20 microns, 22 microns, 24 microns, 26 microns, 28 microns or 30 microns. Further, the specific shape of the texture is not particularly required, and may be a pyramid-shaped texture, a prism-shaped texture, or the like. In some embodiments, the texture is pyramid-like texture, and the width d2 of each pyramid-like texture is 80-120 microns, such as 80 microns, 85 microns, 90 microns, 95 microns, 100 microns, 105 microns, 110 microns, 115 microns, or 120 microns. Therefore, the texture with the size can enable the hand feeling of the shell assembly to be smoother and finer, and the glittering visual sense to be better.
It should be noted that, in the same plastic substrate, the depth and the width of the texture at different positions may be the same or different, as long as the depth d1 of the texture is between 20 micrometers and 30 micrometers, and the width d2 of each of the pyramid-shaped textures is between 80 micrometers and 120 micrometers.
Furthermore, the inner surface of the plastic base material can be free of texture, so that the subsequent manufacturing of structures such as a silk-screen pattern layer, a UV texture layer, a film coating layer and the like on the inner surface is facilitated.
According to the embodiment of the present application, the shape and structure of the plastic substrate have no special requirement, and those skilled in the art can flexibly design the plastic substrate according to the actual situation, for example, the plastic substrate can be a 2D structure, a 2.5D structure, or a 3D structure, which is not limited herein.
According to an embodiment of the present application, referring to fig. 2, the housing assembly may further include: a silk-screen pattern layer 20, wherein the silk-screen pattern layer 20 is arranged on the inner surface 12 of the plastic base material; a UV texture layer 30, wherein the UV texture layer 30 is disposed on a side of the silk-screen pattern layer 20 away from the plastic substrate 10 (as will be understood by those skilled in the art, in an area where the inner surface of the silk-screen pattern layer is disposed, the UV texture layer is still disposed, that is, the UV texture layer is disposed on the whole area of the inner surface); the coating layer 40 is arranged on one side, away from the plastic base material 10, of the UV texture layer 30; and the bottom-covering ink layer 50 is arranged on one side of the coating layer 40 far away from the plastic base material 10. Therefore, the shell assembly has a better appearance texture effect. According to the embodiment of this application, because silk screen printing pattern layer is in the below that coloured plastic substrate, the pattern on silk screen printing pattern layer covers the colour of plastic substrate, so the pattern on silk screen printing pattern layer can demonstrate the colour with the plastic substrate homochromy in the vision, and the technical scheme who presents the colour through setting up the printing ink layer among the prior art, because silk screen printing pattern layer is in the top on printing ink layer, the pattern on silk screen printing pattern layer can not be covered the colour, the pattern on silk screen printing pattern layer can not present the colour on printing ink layer in the vision.
The specific patterns of the silk-screen pattern layer do not have special requirements, and technicians in the field can flexibly select the patterns according to actual design conditions, for example, the silk-screen pattern layer can be LOGO patterns and the like.
Wherein, the thickness of the UV texture layer is 5-8 microns, such as 5 microns, 6 microns, 7 microns or 8 microns.
Wherein, when the coating layer is of a single-layer structure and can be made of indium tin (90% indium and 10% tin), the thickness of the coating layer is 40-50 microns; when the coating layer is of a multilayer structure, the coating layer can be made of at least one of titanium oxide, silicon oxide, niobium oxide and aluminum oxide, wherein the outermost layer close to the plastic base material is made of titanium dioxide or silicon dioxide, the thickness of the outermost layer is 150-500 nanometers, the inner layer (which can comprise multiple layers) far away from the plastic base material is made of at least one of titanium oxide, silicon oxide, niobium oxide and aluminum oxide, and the thickness of the inner layer is 200-800 nanometers.
The bottom covering ink layer can comprise a plurality of sub-covering bottom layers, the color of the sub-covering bottom layers can be white or black, and the thickness of the bottom covering ink layer is 15-20 micrometers.
Further, referring to fig. 3, the housing assembly further includes: the membrane layer 60, the membrane layer 60 is arranged on one side of the UV texture layer 30 close to the plastic base material 10; the transparent adhesive layer 70, the transparent adhesive layer 70 is disposed on one side of the film layer 60 close to the plastic substrate 10. Therefore, in the preparation process, the UV texture layer 30, the coating layer 40 and the bottom covering ink layer 50 can be sequentially formed on one surface of the membrane layer 60 in advance, and then the other surface of the membrane layer is attached to the inner surface of the plastic base material with the silk-screen printing pattern layer through the transparent adhesive layer, so that the shell component is obtained.
Wherein, in some embodiments, the membrane layer can be an explosion-proof membrane, such as a 50-micron explosion-proof membrane made of PET; in other embodiments, the film layer can also be made of TPU, PC or the like film. The transparent adhesive layer can be OCA optical adhesive, so that the light transmittance is high.
Furthermore, can also set up the sclerosis layer at the surface of plastic substrate to improve the mechanical properties such as hardness of casing subassembly, wherein, the thickness on sclerosis layer is 10 ~ 15 microns.
According to the embodiment of the application, in the LAB value of the plastic substrate, L is 15 to 25 (for example, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25), so that the color permeability of the colored plastic substrate is good, the transparency is high, and the quality of the overall appearance color of the housing assembly is improved.
Further, when the housing assembly includes the screen printing pattern layer, the UV texture layer, the coating layer, and the bottom ink layer, in the LAB value of the housing assembly, L is 35 to 50 (for example, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, or 50), so that the transparency of the appearance color of the housing assembly is better, and the permeability is better. In some embodiments, the plastic substrate is light blue, and the LAB values of the housing components are: l (41-43), A (-2.1-1.8) and B (-5.5-4.5). Therefore, the shell assembly has the advantages of good color permeability and high brightness.
In one aspect of the present application, a method of making a housing assembly is provided. According to an embodiment of the present application, a method of manufacturing a housing assembly includes a step of manufacturing a plastic substrate, the step of manufacturing the plastic substrate including: at least one layer of colored sheet material is formed. From this, the formation of coloured panel can be so that the plastic substrate itself has the colour, provide the outward appearance color for casing subassembly, thereby need not to set up the colour printing ink layer that is used for embodying casing subassembly outward appearance color in the casing subassembly, so, can improve the brightness of passing through of casing subassembly outward appearance colour, can also reduce casing subassembly's whole thickness, save preparation process and raw materials cost, and can also eliminate the harmful effects (for example dust point, granule, broken filament, brilliant defect such as bad) that bring because of setting up the printing ink layer, improve the straight through rate (can improve 5% at least) and the product yield of product.
According to the embodiment of the application, the plastic substrate can be prepared by an injection molding method or a co-extrusion molding method, and a person skilled in the art can flexibly select an appropriate method according to actual conditions.
According to an embodiment of the present application, the step of preparing the plastic substrate includes:
s110: mixing a colorant with the transparent plastic resin to obtain colored plastic particles;
s120: and carrying out injection molding or extrusion on the colored plastic particles to obtain the plastic base material.
Wherein, the specific color and material of the colorant have no special requirements, and the person skilled in the art can flexibly select the appropriate colorant according to the actual requirements as long as the good appearance effect of the shell component is ensured. Specific materials of the transparent plastic resin include, but are not limited to, plastic resin materials such as PMMA, PET, PC, and the like.
Further, the step of preparing the plastic substrate comprises:
s111: mixing the colorant with carrier particles, and dyeing the carrier particles to obtain a color master batch;
the specific material of the carrier particle has no special requirement, and the carrier particle can have better compatibility with transparent plastic resin when the plastic substrate is prepared subsequently, so that the plastic substrate with excellent performance can be obtained. In some embodiments, specific materials of the carrier particles include, but are not limited to, PC, PET, PMMA, and the like.
S121: mixing the color master batch with the transparent plastic resin to obtain colored plastic particles;
wherein, the mass percentage of the color master batch is 0.1-0.5% (such as 0.1%, 0.2%, 0.3%, 0.4%, 0.5%) based on the total weight of the mixed plastic particles. Therefore, the plastic substrate with uniform color can be obtained, and the light transmittance of the plastic substrate is not greatly influenced.
S131: and carrying out injection molding or extrusion on the colored plastic particles to obtain the plastic substrate.
In some embodiments, the conditions for injection molding are: the melting temperature is 230-250 ℃; the injection pressure is 120-130 MPa, and the injection time is 2-4 seconds; the pressure maintaining pressure is 40-50 MPa, and the pressure maintaining time is 30-40 seconds. Under the conditions, the plastic base material obtained by high-pressure injection molding has better mechanical property, uniform color and high transparency.
In some embodiments, the step of preparing the plastic substrate by injection molding comprises: mixing a colorant with a carrier (which can further comprise other additives according to actual requirements), coloring the carrier to obtain color master batches, uniformly mixing the color master batches with transparent plastic resin to obtain colored plastic particles, putting the colored plastic particles into a mold, and performing injection molding to obtain the colored plastic substrate. The injection molding comprises the specific steps of melting colored plastic particles, upper molding, debugging, mold closing, injecting glue and filling, pressure maintaining molding, cooling and mold opening to obtain a molded plastic base material.
In other embodiments, taking the composite board material with PC/PMMA plastic substrate as an example, the step of preparing the plastic substrate by co-extrusion (a method of extrusion) comprises: weighing 75-200 Kg (weight error +/-1 g/10Kg) of transparent PMMA particles to be subjected to color matching, pouring the weighed particles into a stirrer, weighing toner (color matching according to appearance color and weight error +/-0.001 g) according to technological parameter requirements, pouring the toner into the stirrer, starting a color mixer to perform color matching, wherein the stirring time is 15-30 min according to the mixing state of the PMMA particles and the toner, after the stirring time is up, putting the stirred materials into a transfer bag, pouring the materials into the stirrer again to perform secondary stirring and color mixing, wherein no toner or foreign matter remains on the inner surface of the container wall after the stirring is completed, and the particles have no obvious color difference when being observed visually, so that the colored plastic particles are obtained. The test result of the mechanical property of the plastic base material prepared by the steps of the method (including the steps of adding the pre-obtained colored plastic particles into the screw extruder and re-granulating) can refer to the following table 1, and the table 1 shows that the plastic base material has better mechanical property and can completely meet the performance requirements of electronic equipment on shell components and base materials.
TABLE 1
According to an embodiment of the present application, the step of preparing the plastic substrate further comprises: and forming textures on the outer surface of the plastic substrate. Therefore, the outer surface of the plastic substrate is provided with the texture, namely the plastic substrate is provided with the texture, and compared with the texture layer formed on the outer surface (for example, the texture layer is formed on the outer surface through UV glue), the wear resistance of the texture can be greatly improved, the hand feeling is better, the smoothness and the fineness are realized, and the glittering visual effect is better.
Wherein the depth d1 of the texture is 20 microns to 30 microns, such as 20 microns, 22 microns, 24 microns, 26 microns, 28 microns or 30 microns. Further, the specific shape of the texture is not particularly required, and may be a pyramid-shaped texture, a prism-shaped texture, or the like. In some embodiments, the texture is pyramid-like texture, and the width d2 of each pyramid-like texture is 80-120 microns, such as 80 microns, 85 microns, 90 microns, 95 microns, 100 microns, 105 microns, 110 microns, 115 microns, or 120 microns. Therefore, the texture with the size can enable the shell assembly to have silky and fine hand feeling and better glittering visual sense.
In some embodiments, when the plastic substrate is prepared by the injection molding, the texture is formed on the outer surface of the plastic substrate simultaneously during the injection molding by the mold having a mother texture on the surface. That is, the prepared colored plastic particles are put into a mold with a mother texture on the surface, and the mother texture on the surface of the mold is transferred to the outer surface of the plastic substrate in the injection molding process, so that the surface of the plastic substrate has the texture. Therefore, the method is simple and easy to implement, and has low manufacturing cost and high yield.
In other embodiments, when the plastic substrate is prepared by the co-extrusion method, the texture is formed on the outer surface of the plastic substrate simultaneously during the co-extrusion process by an extrusion roller with a mother texture on the surface. That is, an extrusion roller in an extruder for co-extrusion preparation of a plastic substrate has a master texture, and in the co-extrusion process, the master texture on the surface of the extrusion roller is transferred to the outer surface of the plastic substrate, so that the surface of the plastic substrate has the texture. Therefore, the method is simple and easy to implement, and has low manufacturing cost and high yield.
According to an embodiment of the application, the method of preparing the housing assembly further comprises:
s210: carrying out hardening treatment on the outer surface of the plastic base material, specifically: and (2) carrying out surface hardening treatment on the outer surface of the prepared plastic base material by adopting a process of spraying or curtain coating UV hardening liquid, wherein the main components of the hardening liquid are polyurethane acrylate and an initiator, the mass ratio of the polyurethane acrylate to the initiator is 100 (3-8), the total spraying thickness of the hardening liquid is 10-15 mu M, the UV curing energy is 600-900 mJ, and the time is 10-20 seconds.
S220: silk screen printing pattern layer (for example silk screen LOGO) on the internal surface of plastic substrate, it is specific: and (3) carrying out LOGO printing on the inner surface of a product by adopting a 450-mesh and 8N tension silk-screen printing plate and 70-degree frictioning, and selecting silk-screen mirror silver ink. After finishing silk-screen printing, the silk-screen printing is baked for 30min at the temperature of 80 +/-2 ℃.
S230: keep away from on silk screen printing pattern layer one side UV rendition of plastic substrate forms UV texture layer, and is specific: the texture is transferred to the inner surface of the plastic substrate using a UV mold, the thickness of the UV texture layer being 5-8 microns.
S240: forming a coating film layer on one side of the UV texture layer, which is far away from the plastic substrate, specifically: performing PVD coating on the surface of the UV texture layer, wherein the specific process comprises the following steps: hanging rack → vacuumizing → material pretreatment → ion sputtering coating → air release to obtain the coating layer. Wherein, when the coating layer is of a single-layer structure and can be made of indium tin (90% indium and 10% tin), the thickness of the coating layer is 40-50 microns; when the coating layer is of a multilayer structure, the coating layer can be made of at least one of titanium oxide, silicon oxide, niobium oxide and aluminum oxide, wherein the outermost layer close to the plastic base material is made of titanium dioxide or silicon dioxide, the thickness of the outermost layer is 150-500 nanometers, the inner layer (which can comprise multiple layers) far away from the plastic base material is made of at least one of titanium oxide, silicon oxide, niobium oxide and aluminum oxide, and the thickness of the inner layer is 200-800 nanometers.
S250: keep away from on the coating film layer one side of plastic substrate forms the printing ink layer at the bottom of the lid, it is specific: printing ink on the surface of the coating layer, in some embodiments, printing three primary colors, namely forming a three-layer sub-cover bottom layer, wherein the total thickness of the cover bottom ink layer is 15-20 microns, the first primary printing ceramic white primary color is pre-baked at 80 +/-2 ℃ for 30 min; secondly, printing ceramic white, and pre-baking at 80 +/-2 ℃ for 30 min; and thirdly, printing titanium crystal black, and baking at 80 +/-2 ℃ for 60 min.
In the above steps, structures such as a UV texture layer, a film coating layer, and a bottom-covering ink layer are directly formed on the inner surface of the plastic substrate, and in other embodiments, an appearance film layer can be formed on the inner surface of the plastic substrate by a bonding method, specifically: selecting a proper membrane layer, sequentially forming a UV texture layer, a coating layer and a bottom covering ink layer on one surface of the membrane layer to obtain an appearance membrane layer, cutting the appearance membrane layer into pieces according to the specification of a drawing by adopting a laser cutting process, and finally attaching the other surface of the membrane layer to the inner surface of the plastic base material with the silk-screen pattern layer printed on the inner surface through a transparent adhesive layer. Wherein, in order to ensure a better attaching effect and increase the bonding strength, a vacuum attaching machine can be adopted, the attaching temperature is normal temperature, and the attaching time is 20-40 seconds.
S260: and carrying out numerical control cutting on the attached product through CNC machining to obtain the shell assembly. In some embodiments, the CNC engraving and milling process parameters are as follows: the main shaft rotating speed is 45000-. The process improves the product yield and ensures the processing efficiency.
According to an embodiment of the present application, the method for manufacturing the housing assembly may be used for manufacturing the housing assembly, wherein the requirements for the plastic substrate, the UV texture layer, the film coating layer, the bottom ink layer and other structures are the same as those described above, and further description is omitted here.
In other embodiments, a blue plastic substrate is prepared by a co-extrusion method, the plastic substrate is a PC/PMMA composite board, wherein the PMMA layer is a colored board, the PC layer is a color-coated board, and LAB values (average values obtained by three tests) of the plastic substrate are: l (81.61), A (-15.75), B (7.19), the light transmittance of the prepared plastic substrate is plotted in FIG. 4. Therefore, the prepared plastic substrate has good color permeability and high transparency, and the plastic substrate has higher light transmittance, so that the performance of structures such as a UV texture layer, a coating layer and the like on the appearance surface of the shell assembly is not influenced, and the good appearance effect of the shell assembly is further ensured.
In one aspect of the present application, an electronic device is provided. According to an embodiment of the present application, an electronic device includes: referring to fig. 5, the housing assembly 100 previously described; a display screen assembly 200, wherein the display screen assembly 200 is connected with the housing assembly 100, and an installation space is defined between the display screen assembly 200 and the housing assembly 100; and the mainboard is arranged in the installation space and is electrically connected with the display screen assembly. Therefore, the appearance color and the transparency of the shell assembly of the electronic equipment are good. Those skilled in the art will appreciate that the electronic device has all of the features and advantages of the housing assembly previously described and will not be redundantly described here.
The specific type of the electronic device has no special requirements, and those skilled in the art can flexibly select the electronic device according to actual requirements. In some embodiments, specific types of electronic devices described above include, but are not limited to, a cell phone (such as shown in fig. 5), iPad, notebook, kindle, game console, etc. having an electronic device.
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. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, 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 (17)
1. A shell assembly is characterized by comprising a plastic base material, wherein the plastic base material comprises at least one layer of colored plate.
2. The housing assembly of claim 1 wherein said colored sheet material comprises a transparent plastic resin and a colorant.
3. The housing assembly of claim 2, wherein the colored sheet material further comprises:
carrier particles dyed by the colorant.
4. The housing assembly of claim 1, wherein the plastic substrate has a transmittance of 83% to 95% for visible light.
5. The housing assembly of any one of claims 1 to 4, wherein the plastic substrate has a thickness of 0.6mm to 0.8 mm.
6. The housing assembly of any one of claims 1 to 4, wherein L is 15 to 25 in the LAB value of the plastic substrate.
7. The housing assembly of any one of claims 1 to 4, wherein when the housing assembly is used in an electronic device, the plastic substrate has an outer surface and an inner surface opposite to each other, and the outer surface has a texture.
8. The housing assembly of claim 7 wherein the texture has a depth of 20 to 30 microns.
9. The housing assembly of claim 7, wherein the texture is a pyramid-like texture, each of the pyramid-like textures having a width of 80-120 microns.
10. A method of making a housing assembly comprising the step of preparing a plastic substrate, the step of preparing the plastic substrate comprising: at least one layer of colored sheet material is formed.
11. The method of claim 10, wherein the step of preparing the plastic substrate comprises:
mixing a colorant with the transparent plastic resin to obtain colored plastic particles;
and carrying out injection molding or extrusion on the colored plastic particles to obtain the plastic substrate.
12. The method of claim 11, wherein the step of preparing the plastic substrate comprises:
mixing the colorant with carrier particles, and dyeing the carrier particles to obtain a color master batch;
mixing the color master batch with the transparent plastic resin to obtain the colored plastic particles;
and carrying out injection molding or extrusion on the colored plastic particles to obtain the plastic substrate.
13. The method according to claim 10 or 11, wherein the injection molding conditions are:
the melting temperature is 230-250 ℃;
the injection pressure is 120-130 MPa, and the injection time is 2-4 seconds;
the pressure maintaining pressure is 40-50 MPa, and the pressure maintaining time is 30-40 seconds.
14. The method according to any one of claims 11 to 13, wherein the step of preparing the plastic substrate further comprises: and forming textures on the outer surface of the plastic substrate.
15. The method as claimed in claim 14, wherein the texture is formed on the outer surface of the plastic substrate simultaneously during the injection molding process by a mold having a mother texture on the surface thereof when the plastic substrate is prepared by the injection molding process.
16. The method as claimed in claim 14, wherein the plastic substrate is prepared by the extrusion method, the texture is formed on the outer surface of the plastic substrate simultaneously during the co-extrusion process by an extrusion roller having a mother texture on the surface.
17. An electronic device, comprising:
the housing assembly of claims 1-9;
the display screen assembly is connected with the shell assembly, and an installation space is defined between the display screen assembly and the shell assembly; and
the mainboard sets up in the installation space and with display screen assembly electricity is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011632152.5A CN114697430A (en) | 2020-12-31 | 2020-12-31 | Shell assembly, preparation method thereof and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011632152.5A CN114697430A (en) | 2020-12-31 | 2020-12-31 | Shell assembly, preparation method thereof and electronic equipment |
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| Publication Number | Publication Date |
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| CN114697430A true CN114697430A (en) | 2022-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011632152.5A Pending CN114697430A (en) | 2020-12-31 | 2020-12-31 | Shell assembly, preparation method thereof and electronic equipment |
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| CN (1) | CN114697430A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117507531A (en) * | 2024-01-05 | 2024-02-06 | 咏麦可思(上海)智能科技有限公司 | Automobile interior and exterior film with multilayer structure and preparation method thereof |
-
2020
- 2020-12-31 CN CN202011632152.5A patent/CN114697430A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117507531A (en) * | 2024-01-05 | 2024-02-06 | 咏麦可思(上海)智能科技有限公司 | Automobile interior and exterior film with multilayer structure and preparation method thereof |
| CN117507531B (en) * | 2024-01-05 | 2024-03-12 | 咏麦可思(上海)智能科技有限公司 | Automobile interior and exterior film with multilayer structure and preparation method thereof |
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