Housing and electronic equipment

Abstract

The embodiment of the present application provides a housing and an electronic device, wherein the housing comprises a stacked metal plate, an intermediate layer and a first texture layer, wherein the intermediate layer is located between the metal plate and the first texture layer; and the intermediate layer contains more than 80% by mass of acrylic resin. The housing provided in the embodiment of the present application realizes that the housing has a metallic cool feel, a colorful texture appearance on the outer surface, and seamless refinement, thereby improving the richness and competitiveness of the product appearance.

Description

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on February 7, 2023, with application number 202310145274.9 and application name “housing and electronic device”, the entire contents of which are incorporated by reference in this application. Technical Field

[0002] The present application relates to the field of terminal technology, and in particular to a housing and an electronic device. Background Art

[0003] Electronic devices such as tablet computers and laptops have become inseparable from our lives and can be seen everywhere in our lives, greatly improving people's living standards. With the rapid development of communication equipment technology, users have put forward higher requirements for the appearance of electronic devices.

[0004] At present, the shell of tablet computers is often made of metal, often using anodizing, which is highly homogenized and has limited appearance. Some tablet computers use glass fiber boards, composite boards, and PU leather. Although they have a high-end appearance, they lose the cool feel of the metal itself, and introduce a gap in the fit, which reduces the sophistication. Summary of the invention

[0005] The present application provides a shell and an electronic device, which realizes that the shell has a metallic cool feel, a colorful texture appearance on the outer surface, and seamless refinement, thereby improving the richness and competitiveness of the product appearance.

[0006] In a first aspect, the present application provides a shell, comprising a stacked metal plate, an intermediate layer and a first texture layer, wherein the intermediate layer is located between the metal plate and the first texture layer; the intermediate layer contains more than 80% by mass of acrylic resin.

[0007] The shell provided by the present application is provided with an intermediate layer on one side of a metal plate, and a first texture layer on the intermediate layer, wherein the intermediate layer is prepared by coating paint on one side of the metal plate and then thermally curing, wherein the paint component includes acrylic resin, that is, the component of the intermediate layer includes acrylic resin, and the intermediate layer is used as a primer layer on one side of the metal plate, and the intermediate layer is used to improve the adhesion between the texture layer and the metal surface and to mask the original color of the metal surface of the metal plate. Through the above-mentioned stacked metal plate, intermediate layer and first texture layer, the shell has a metallic cool feel, and the outer surface of the shell has a colorful texture appearance, which improves the richness and competitiveness of the product appearance. Secondly, the stacked arrangement of the metal plate, intermediate layer and first texture layer achieves seamless refinement. Therefore, the shell provided by the embodiment of the present application solves the problem that the shell in the related art cannot have both a metallic cool feel, a colorful texture appearance on the outer surface and seamless refinement.

[0008] In a possible implementation, the acrylic resin is obtained by reacting 60%-90% by mass of a modified acrylic ester and 10%-40% by mass of a polyester acrylic resin, wherein the modified acrylic ester includes a silane-modified acrylic ester and / or a hydroxypropyl-modified acrylic ester.

[0009] In a possible implementation, the intermediate layer further includes additives, and the additives include colorants and fillers.

[0010] In a possible implementation, the intermediate layer is formed by coating a mixture of 60%-90% by mass of modified acrylate, 10%-40% by mass of polyester acrylic resin, a curing agent and the additive on the metal plate and then thermally curing the mixture.

[0011] In a possible implementation manner, the method further includes: a first coating layer, wherein the first coating layer is located on a side of the first texture layer facing away from the intermediate layer.

[0012] In a possible implementation, the invention further includes: a hardening layer and a first bonding layer, wherein the first bonding layer is located between the first coating layer and the hardening layer;

[0013] The first bonding layer is used to connect the first coating layer and the hardening layer.

[0014] In a possible implementation manner, the method further includes: a second texture layer, wherein the second texture layer is located between the first bonding layer and the hardening layer.

[0015] In a possible implementation manner, the method further includes: a second coating layer, wherein the second coating layer is located between the second texture layer and the hardening layer.

[0016] In a possible implementation manner, the method further includes: a second bonding layer, wherein the second bonding layer is located between the second coating layer and the hardening layer.

[0017] In a possible implementation, the first texture layer and the second texture layer both include a UV adhesive layer and a film with a texture structure, and the UV adhesive layer is made of glue mainly composed of polyurethane acrylic resin.

[0018] In a possible implementation, the hardened layer includes at least one of a textured UV texture layer and a non-textured hard film layer, and the hardness of the hardened layer is greater than the hardness of the first texture layer.

[0019] In a possible implementation, the first bonding layer and the second bonding layer are adhesive layers formed of any one of polyurethane, polyester, and epoxy resin.

[0020] In a possible implementation manner, the thickness of the intermediate layer is 10-35 μm.

[0021] In a possible implementation manner, the thickness of the second texture layer and the first texture layer is 10-25 μm.

[0022] In a possible implementation manner, the hardened layer has a thickness of 10-25 μm.

[0023] In a possible implementation manner, the thickness of the second coating layer and the first coating layer is 50-150 nm.

[0024] In a possible implementation manner, the thickness of the second bonding layer and the first bonding layer is 6-10 μm.

[0025] In a possible implementation manner, the first coating layer and the second coating layer include one or more of SiO, ZrO2, Ti3O5 and SiO2.

[0026] In a possible implementation manner, an outer edge of the housing has a chamfered surface.

[0027] In a possible implementation, the chamfered plane extends simultaneously on the metal plate, the intermediate layer, and the first texture layer.

[0028] In a possible implementation manner, the corresponding width of the chamfered plane in the metal layer is greater than or equal to 0.5 mm and less than or equal to 3 mm.

[0029] In a second aspect, the present application provides an electronic device, comprising: any of the housings described above.

[0030] In a possible implementation, the electronic device includes a display screen and a middle frame, wherein the middle frame is disposed between the display screen and the shell, and a side of the metal plate of the shell facing away from the metal plate faces the middle frame.

[0031] In a possible implementation, the electronic device is a tablet computer. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of the overall structure of an electronic device provided in an embodiment of the present application;

[0033] Figure 2 Another schematic diagram of the overall structure of an electronic device provided in an embodiment of the present application;

[0034] Figure 3 A schematic diagram of the disassembled structure of an electronic device provided in an embodiment of the present application;

[0035] Figure 4A It is a schematic diagram of the split structure of a shell;

[0036] Figure 4B A schematic diagram of the disassembled structure of the housing provided in an embodiment of the present application;

[0037] Figure 5 Another schematic diagram of the disassembled structure of the housing provided in the embodiment of the present application;

[0038] Figure 6 A schematic diagram of another disassembled structure of the housing provided in an embodiment of the present application;

[0039] Figure 7 A schematic diagram of a partial structure of a shell provided in an embodiment of the present application.

[0040] Description of reference numerals:

[0041] 100-Electronic device; 100a-Laptop computer; 100b-Tablet computer;

[0042] 110-rear housing; 110a-housing;

[0043] 111-metal plate; 112-middle layer; 113-first texture layer;

[0044] 114-first coating layer; 115-first bonding layer; 116-hardening layer;

[0045] 117 - second texture layer; 118 - second coating layer; 119 - second bonding layer;

[0046] 120-display screen; 130-middle frame; 140-housing;

[0047] 150-first housing; 160-second housing; 161-keyboard;

[0048] 170-chamfered plane; 180-laminated structure. DETAILED DESCRIPTION

[0049] The terms used in the implementation method part of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The implementation method of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0050] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and other forms thereof, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open, inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example" or "some examples" and the like are intended to indicate that a particular feature, structure, material or characteristic associated with the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the particular features, structures, materials or characteristics described may be included in any one or more embodiments or examples in any appropriate manner.

[0051] In addition, in the embodiments of the present application, directional terms such as "front" and "rear" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to changes in the orientation of the components in the drawings.

[0052] In the embodiments of the present application, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0053] An embodiment of the present application provides an electronic device. It can be understood that the electronic device can be a mobile terminal device such as a tablet computer, a mobile phone, a laptop computer, a personal digital assistant (PDA), a smart wearable device, a point of sales (POS) terminal, etc., or the electronic device can also be a fixed terminal device such as a smart TV, a router, a server, a switch, etc., and this embodiment does not limit this.

[0054] In some examples, reference Figure 1 As shown, the electronic device 100 in the embodiment of the present application can be described by taking a laptop computer 100a as an example, see Figure 1As shown, the electronic device 100 may include: a display screen 120, a first housing 150 and a second housing 160, wherein the display screen 120 is connected to the first housing 150, the first housing 150 and the second housing 160 can be rotatably connected, and a keyboard 161 is provided on the second housing 160. The display screen 120 may be electrically connected to a circuit board provided in the second housing 160 through a flexible circuit board or a conductive element (not shown), and components such as a battery may also be provided in the second housing 160. The first housing 150 and the second housing 160 may both be metal housings.

[0055] In other examples, reference Figure 2 As shown, the electronic device 100 in the embodiment of the present application can be described by taking a tablet computer 100b as an example. Figure 2 As shown, the electronic device 100 may include a display screen 120 and a housing 140, wherein the display screen 120 is connected to the housing 140 and defines a receiving cavity therein, and components such as a circuit board and a battery may be disposed in the receiving cavity.

[0056] In the embodiment of the present application, the display screen 120 may be an organic light-emitting diode (OLED) display screen 120 or a liquid crystal display screen 120 (LCD). It should be understood that the display screen 120 may be a touch screen, and further, the display screen 120 may include a display and a touch control device, wherein the display is used to output display content to the user, and the touch control device is used to receive touch events input by the user on the display screen 120.

[0057] Figure 3 The electronic device 100 (100b) is a split structure. Figure 3 As shown, the housing 140 may include a middle frame 130 and a rear housing 110, the middle frame 130 may be disposed between the display screen 120 and the rear housing 110, and the battery may be disposed on a side of the middle frame 130 facing the rear housing 110 (eg, Figure 2 As shown), the rear shell 110 can be set between the middle frame 130 and the rear shell 110, and the rear shell 110 is connected to the middle frame 130. It can be understood that the rear shell 110 and the middle frame 130 are connected to form a hollow internal space, and the battery can be installed in the internal space.

[0058] The middle frame 130 and the rear shell 110 may be metal parts.

[0059] It should be noted that, in some embodiments, the rear shell 110 of the electronic device 100 (eg, the tablet computer 100 b ) may be connected to the middle frame 130 to form an integrally formed (Unibody) shell 140 .

[0060] It is understood that the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the electronic device 100. In other embodiments of the present application, the electronic device 100 (such as the tablet computer 100b) may include more or fewer components than shown in the figure, or combine some components, or separate some components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0061] With the continuous development of electronic devices 100, the requirements for the appearance of the shell (such as the first shell 150, the second shell 160 or the back shell 110) of the electronic device 100 (such as a tablet computer 100b or a laptop computer 100a) are getting higher and higher. In the related art, the shell of the electronic device 100 is mostly made of a metal, such as aluminum alloy, stainless steel or titanium alloy, or made of glass fiber board, composite board, polyurethane skin. In recent years, with the emergence of high-gloss appearance effects of electronic device appearance parts and the development trend of exquisite appearance design, shells with higher strength, higher gloss effects and metal feel have become a development hotspot. However, the shells of electronic devices are highly homogenized, and the richness of appearance effects is also relatively limited. It may not be possible to meet the problem of both achieving the high-end appearance of the electronic device shell and maintaining the cool feel of the metal shell itself.

[0062] Figure 4A The schematic diagram of the structure of a housing of an electronic device is shown in FIG. Figure 4A As shown, in order to achieve the texture effect of the shell, the shell includes a metal plate 11 and a textured thin film diaphragm 14 arranged on the metal plate 11. Among them, when setting, a textured thin film diaphragm 14 is often prepared in advance. The thin film diaphragm 14 can be formed by, for example, arranging a texture layer 13 on a bearing layer 12. The bearing layer 12 can be a thin film layer. A groove 15 is provided on one side of the metal plate 11. The thin film diaphragm 14 is placed in the groove 15, and the thin film diaphragm 14 and the thin film diaphragm 14 are pressed and bonded together by a concave-convex mold. In this way, in the manufacturing process, it is necessary to prepare the thin film diaphragm 14 in advance, and the thin film diaphragm 14 and the metal plate 11 are pressed and bonded together by a concave-convex mold, and the process is cumbersome. In addition, when the thin film diaphragm 14 is arranged in the groove 15 of the metal plate 11, there is often a matching gap between the outer edge of the thin film diaphragm 14 and the groove wall of the groove 15, which reduces the refinement of the shell.

[0063] Therefore, in order to solve the above problems, the embodiment of the present application provides a shell, which can be a first shell 150, a second shell 160, a shell 140, or a rear shell 110. Among them, the shell provided in the embodiment of the present application enables the shell of the electronic device to have a metallic cool feel, a colorful texture appearance on the outer surface, and seamless refinement, effectively improving the richness and competitiveness of the product appearance. The specific structure of the shell provided in the embodiment of the present application is introduced below in conjunction with the accompanying drawings.

[0064] Reference Figure 4B As shown, the housing 110a provided in the embodiment of the present application is specifically a rear housing 110 for illustration. Figure 4B As shown, the housing 110a may include: a metal plate 111, an intermediate layer 112 and a first texture layer 113, wherein the metal plate 111, the intermediate layer 112 and the first texture layer 113 may be stacked. In the embodiment of the present application, the intermediate layer 112 may be located between the metal plate 111 and the first texture layer 113.

[0065] The metal plate 111 may have a metal surface, and the intermediate layer 112 may be located on the metal surface of the metal plate 111. In a possible embodiment, the first texture layer 113 is connected to the metal surface of the metal plate 111 through the intermediate layer 112. The intermediate layer 112 may be a base layer (such as a primer layer) coated on the metal surface of the metal plate 111. It should be noted that the intermediate layer 112 is mainly composed of paint, and the main component of the paint may be a thermosetting resin material. It can be understood that the main function of the intermediate layer 112 is to improve the adhesion between the first texture layer 113 and the metal surface of the metal plate 111. It should be noted that the adhesion can be determined by subjecting the shell 110a to a water boiling test, wherein the water boiling test may refer to a moisture and heat resistance test after coating. For example, if the intermediate layer 112 does not fall off after the shell 110a is boiled in water for two hours at 98°, it can be determined that the standard is met. In addition, in a possible implementation manner, the color of the intermediate layer 112 may be black, so that the intermediate layer 112 can play a role in shielding the original color of the metal surface of the metal plate 111 .

[0066] Based on the above embodiment, the intermediate layer 112 can be a primer layer obtained by coating paint on the metal surface of the metal plate 111, and can be prepared by a thermal curing process. The paint can contain more than 80% by mass of acrylic resin. For example, the intermediate layer 112 contains more than 80% by mass of acrylic resin.

[0067] The manufacturing process of the intermediate layer 112 can be sprayed to coat the paint on the metal surface of the metal plate 111, and then baked to solidify on the metal surface of the metal plate 111, thereby masking the original color of the metal plate 111 and serving as a base color. According to the effect requirements of the rear shell 110 of the tablet computer, the manufacturing method of the intermediate layer 112 can be coated and baked multiple times, for example, two coatings and two bakings, three coatings and three bakings, four coatings and four bakings, five coatings and five bakings, etc.

[0068] In a possible embodiment, the acrylic resin can be obtained by reacting 60%-90% by mass of a modified acrylic ester and 10%-40% by mass of a polyester acrylic resin. For example, the acrylic resin can be obtained by reacting a modified acrylic ester and a polyester acrylic resin, and the ratio of the modified acrylic ester to the polyester acrylic resin can be (6-9): (1-4). For example, the ratio of the modified acrylic ester to the polyester acrylic resin can be 9:1 or 7:3. Among them, the modified acrylic ester includes silane-modified acrylic ester and / or hydroxypropyl-modified acrylic ester. Silane-modified acrylic ester is obtained by adding a silane modifier to an acrylic resin, and hydroxypropyl-modified acrylic ester is obtained by adding a hydroxypropyl resin modifier to an acrylic resin. In the embodiment of the present application, the modified acrylic ester is modified by adding a silane additive or a hydroxypropyl resin to the acrylic resin.

[0069] Based on the above embodiment, the intermediate layer 112 may further include additives, wherein the additives may include colorants and fillers.

[0070] On the basis of the above embodiment, the intermediate layer 112 is formed by coating the metal plate 111 with a mixture of 60%-90% by mass of modified acrylate, 10%-40% by mass of polyester acrylate resin, curing agent and additives and then heat-curing to form a film layer. It should be noted that in the heat-curing process, the modified acrylate and polyester acrylate resin are dissolved in a solvent (diluent), and then the curing agent and additives are added to mix, and then the whole is coated on the metal plate 111 for heat curing. In this way, during the entire heating process, the monomers of the modified acrylate and polyester acrylate resin interweave and react with each other to form a macromolecular film.

[0071] It should be noted that the first texture layer 113 can achieve different texture colors and light and shadow effects. For example, the textures that can be formed include but are not limited to CD texture (an effect similar to the texture of a CD disc obtained by removing material from the metal surface using a precision CD texture machine), diamond texture, three-dimensional texture, etc.

[0072] On the basis of the above embodiments, the first texture layer 113 can be obtained by spraying UV glue with polyurethane acrylic resin as the main body onto the surface, and then laminating a film with a texture structure, and then curing it under light to obtain a UV layer with a texture, thereby achieving different visual and tactile effects. Therefore, in the embodiments of the present application, the first texture layer 113 can include a UV glue layer and a film with a texture structure, wherein the UV glue layer is made of glue with polyurethane acrylic resin as the main body.

[0073] In a possible embodiment, the manufacturing process of the first texture layer 113 can be coated by spraying, silk-screen printing or pouring, and then covered with a textured film for rubbing, and then cured by light. Among them, the first texture layer 113 can be made by mixing a prepolymer, a solvent, a curing agent and an additive and reacting. It should be noted that the first texture layer 113 is not formed by mixing and thermally curing a film layer with a mass percentage of 60%-90% of modified acrylate, a mass percentage of 10%-40% of polyester acrylic resin, a solvent, a curing agent and an additive. It should be noted that the prepolymer in the first texture layer 113 can be selected from polyurethane acrylic resin, polyester acrylic resin and epoxy acrylic resin. In the embodiment of the present application, the prepolymer in the first texture layer 113 can be prepared from polyurethane acrylic resin, and the content of the prepolymer can be about 40-65%. In addition, additives need to be added with wear-resistant additives, AF additives, etc., in order to improve its wear resistance, hardness and anti-oil performance.

[0074] In the embodiment of the present application, the first texture layer 113 may be an outer texture layer to achieve a frosted feel. The outermost texture layer in the film structure may be an outer texture layer.

[0075] Therefore, the shell 110a provided in the embodiment of the present application can set an intermediate layer 112 on one of the metal surfaces of the metal plate 111, and then set a first texture layer 113 with texture and color on the intermediate layer 112, so as to directly form a laminated appearance with texture and color on one of the metal surfaces of the metal plate 111, avoiding the advance preparation of the texture film and simplifying the process.

[0076] Among them, in the embodiment of the present application, the intermediate layer 112 and the first texture layer 113 with texture and color are printed on one of the metal surfaces of the metal plate 111 through a lamination process, so as to achieve the effect of seamless refinement between the metal plate 111, the intermediate layer 112 and the first texture layer 113, and avoid the problem in the related art that the pre-prepared thin film diaphragm 14 is set in the groove 15 of the metal plate 11, resulting in a matching gap between the outer edge of the thin film diaphragm 14 and the groove wall of the groove 15, which leads to a decrease in the refinement of the shell. Therefore, the shell 110a provided in the embodiment of the present application achieves seamless matching between the various layer structures on the outer surface of the shell 110a, and improves the refinement of the shell 110a.

[0077] Therefore, the shell 110a provided in the embodiment of the present application has the effects of a cool metallic feel, a colorful textured appearance on the outer surface, and seamless sophistication, which effectively improves the richness and competitiveness of the product appearance, and solves the problem that the metal shell in the existing tablet computer cannot have the effects of a cool metallic feel, a colorful textured appearance on the outer surface, and seamless sophistication.

[0078] In order to further realize the effect that the rear shell 110 of the tablet computer has a metallic cool feel, a colorful texture appearance on the outer surface, and seamless refinement, so that the outer surface of the rear shell 110 of the tablet computer has a more colorful texture appearance, the embodiment of the present application can also provide a shell 110a with a laminated structure on the surface. The specific structure of the shell 110a provided in the embodiment of the present application is introduced below in conjunction with the accompanying drawings.

[0079] In one possible implementation, see Figure 5 As shown, based on the above embodiment, the housing 110a may further include: a first coating layer 114, wherein the first coating layer 114 may be located on the side of the first texture layer 113 facing away from the intermediate layer 112. It should be noted that the first coating layer 114 may be prepared by an optical physical vapor deposition (OPVD) process, wherein the main function of the first coating layer 114 is to achieve metallic gloss effects, color and light and shadow effects. Specifically, the thickness of the first coating layer 114 is determined according to the appearance effect.

[0080] Based on the above embodiment, the manufacturing process of the first coating layer 114 can adopt the method of electron gun evaporation or magnetron sputtering to deposit the target material on the surface of the first texture layer 113, so as to achieve a better gloss effect. In a possible implementation, the first coating layer 114 can be a multi-layer oxide film structure. For example, in some examples, the first coating layer 114 can include one or more of SiO, ZrO2, Ti3O5 and SiO2, wherein the film structure can be adjusted according to the ID effect.

[0081] Based on the above embodiment, the surface of the first coating layer 114 may have a metallic luster effect. In a possible implementation, the first coating layer 114 may be mainly composed of a metal oxide, which is not limited in the present application. The first coating layer 114 has different colors through the refractive index, and the first coating layer 114 can transmit light, thereby achieving a reflective effect.

[0082] On the basis of the above embodiment, since the first texture layer 113 has different texture colors and light and shadow effects, and the first coating layer 114 can have different colors through the refractive index, it should be noted that the first coating layer 114 will not cover the color of the first texture layer 113. In addition, the first texture layer 113 and the first coating layer 114 can achieve the desired color effect together.

[0083] Continue to refer Figure 5 On the basis of the above embodiment, the shell 110a may further include: a hardening layer 116 and a first bonding layer 115, wherein the first bonding layer 115 may be located between the first coating layer 114 and the hardening layer 116. In a possible implementation, the first bonding layer 115 may be used to connect the first coating layer 114 and the hardening layer 116. Among them, the main component of the first bonding layer 115 may be any one of polyurethane, polyester, and epoxy resin, and the first bonding layer 115 may be prepared by a thermal curing process. In the embodiment of the present application, the first bonding layer 115 may be prepared by epoxy resin. It can be understood that the main function of the first bonding layer 115 is to connect the first coating layer 114 and the hardening layer 116.

[0084] On the basis of the above embodiment, a first bonding layer 115 is provided between the first coating layer 114 and the hardening layer 116, wherein the first bonding layer 115 may have a certain bonding effect, so that the first bonding layer 115 can carry the first coating layer 114 and the hardening layer 116. In a possible implementation, the first bonding layer 115 may be provided as a LOGO layer or as an ink layer, wherein when the first bonding layer 115 is an ink layer, the first bonding layer 115 may contain a solvent, so that the first bonding layer 115 can generate a chemical bond, and the first coating layer 114 and the hardening layer 116 can be better bonded and carried by the chemical action.

[0085] The first bonding layer 115 can be made by spraying or silk-screening to apply ink on the first coating layer 114 , and then baked and cured to obtain the first bonding layer 115 , which serves to connect the first coating layer 114 and the hardening layer 116 .

[0086] On the basis of the above-mentioned embodiment, the hardening layer 116 may include at least one of a textured hardening layer and a non-textured hardcoat layer. Among them, the textured hardening layer in the hardening layer 116 may be a UV outer texture layer. In a possible implementation, the main component of the hardening layer 116 may be glue, and the specific structure of the hardening layer 116 may be similar to the first texture layer 113. It should be noted that the hardness of the hardening layer 116 is greater than the hardness of the first texture layer 113. In the embodiment of the present application, the hardening layer 116 may include a UV glue layer and a solvent, wherein the UV glue layer is made of glue with polyurethane acrylic resin as the main body.

[0087] Based on the above embodiments, different hardening layers 116 can be selected according to the desired appearance effects. For example, if a frosted effect or a tactile appearance effect is required, a textured hardening layer 116 can be selected. If a glossy or matte effect or a smoother appearance effect is required, a non-textured hardening layer 116 can be selected.

[0088] Therefore, based on the above embodiment, the laminated structure of the first texture layer 113 and the first coating layer 114 is adopted to better meet the color effect of the tablet computer rear shell 110. The shell 110a provided in the embodiment of the present application also has the effects of metal cool hand feeling, colorful texture appearance on the outer surface and seamless exquisiteness, effectively improving the richness and competitiveness of product appearance, and solving the problem that the metal rear shell 110 in the existing tablet computer cannot have the effects of metal cool hand feeling, colorful texture appearance on the outer surface and seamless exquisiteness.

[0089] In order to further realize the effect that the rear shell 110 of the tablet computer has a metallic cool feel, a colorful texture appearance on the outer surface, and seamless refinement, so that the outer surface of the rear shell 110 of the tablet computer has a more colorful texture appearance, the embodiment of the present application can also provide a shell 110a with a laminated structure on the surface. The specific structure of the shell 110a provided in the embodiment of the present application is introduced below in conjunction with the accompanying drawings.

[0090] In one possible implementation, see Figure 6As shown, based on the above embodiment, the housing 110a may further include: a second texture layer 117, wherein the second texture layer 117 may be located between the first adhesive layer 115 and the hardening layer 116. It should be noted that the manufacturing process of the second texture layer 117 may be the same as the manufacturing process of the first texture layer 113, and the second texture layer 117 may also be obtained by spraying UV glue with polyurethane acrylic resin as the main body onto the surface, and then attaching a film with a texture structure, and then curing it by light to obtain a UV layer with a texture, thereby achieving different visual and tactile effects. Therefore, in the embodiment of the present application, the second texture layer 117 may also include a UV glue layer and a film with a texture structure, wherein the UV glue layer is made of glue with polyurethane acrylic resin as the main body.

[0091] In a possible implementation, the manufacturing process of the second texture layer 117 can be coated by spraying, silk-screening or pouring, and then covered with a textured film for rubbing, and then cured by light. Among them, the components of the second texture layer 117 may include prepolymers, solvents, curing agents and additives. It should be noted that the prepolymer can be selected from polyurethane acrylic resin, polyester acrylic resin and epoxy acrylic resin. In an embodiment of the present application, the prepolymer in the second texture layer 117 can be prepared from polyurethane acrylic resin, and the content of the prepolymer can account for about 40-65%. In addition, additives need to add wear-resistant additives, AF additives, etc., in order to improve its wear resistance, hardness and anti-oil performance.

[0092] It should be noted that the second texture layer 117 has a different polyurethane acrylic resin system than the first texture layer 113. The second texture layer 117 can also achieve different texture colors and light and shadow effects. For example, the textures that can be formed include but are not limited to CD texture (a CD texture effect similar to that of a CD disc obtained by removing material from a metal surface using a precision CD texture machine), diamond texture, three-dimensional texture, etc.

[0093] In the embodiment of the present application, the first texture layer 113 may be an inner texture layer to achieve light and shadow and color effects, and the second texture layer 117 may be an outer texture layer to achieve a frosted feel. Among them, the outermost texture layer in the film structure may be the outer texture layer, and the inner texture layer in the film structure may be the inner texture layer. The textures of the first texture layer 113 and the second texture layer 117 are different.

[0094] In one possible implementation, continue to refer to Figure 6On the basis of the above embodiment, the housing 110a may further include: a second coating layer 118, wherein the second coating layer 118 may be located between the second texture layer 117 and the hardening layer 116. It should be noted that the manufacturing process of the second coating layer 118 may be the same as the manufacturing process of the first coating layer 114, and the second coating layer 118 may also be prepared by an optical physical vapor deposition (OPVD) process method, wherein the main function of the second coating layer 118 is also to achieve metallic gloss effects, color and light and shadow effects, and specifically, the thickness of the second coating layer 118 is determined according to the appearance effect.

[0095] On the basis of the above embodiment, the manufacturing process of the second coating layer 118 can also adopt the method of electron gun evaporation or magnetron sputtering to deposit the target material on the surface of the second texture layer 117, so as to achieve a better gloss effect. In a possible implementation, the second coating layer 118 can be a multi-layer oxide film structure. For example, in some examples, the second coating layer 118 can include one or more of SiO, ZrO2, Ti3O5 and SiO2, wherein the film structure can be adjusted according to the ID effect.

[0096] On the basis of the above embodiment, the surface of the second coating layer 118 may have a metallic luster effect. In a possible implementation, the second coating layer 118 may also be mainly composed of metal oxides, which is not limited in the present application. The second coating layer 118 has different colors through the refractive index, and the second coating layer 118 can transmit light, thereby achieving a reflective effect.

[0097] Based on the above embodiment, since the second texture layer 117 has different texture colors and light and shadow effects, and the second coating layer 118 can have different colors through the refractive index, it should be noted that the second coating layer 118 will not cover the color of the second texture layer 117. In addition, the second texture layer 117 and the second coating layer 118 can achieve the desired color effect together. Figure 6On the basis of the above embodiment, the housing 110a may further include: a second bonding layer 119, wherein the second bonding layer 119 may be located between the second coating layer 118 and the hardening layer 116. In a possible implementation, the second bonding layer 119 may be used to connect the second coating layer 118 and the hardening layer 116. It should be noted that the components of the second bonding layer 119 may be the same as the components of the first bonding layer 115. Among them, the main component of the second bonding layer 119 may also be any one of polyurethane, polyester, and epoxy resin, and the second bonding layer 119 may be prepared by a thermal curing process. It can be understood that the main function of the second bonding layer 119 is to connect the second coating layer 118 and the hardening layer 116.

[0098] On the basis of the above embodiment, a second bonding layer 119 is provided between the second coating layer 118 and the hardening layer 116, wherein the second bonding layer 119 may have a certain bonding effect, so that the second bonding layer 119 can carry the second coating layer 118 and the hardening layer 116. In a possible implementation, the second bonding layer 119 may be provided as a LOGO layer or as an ink layer, wherein when the second bonding layer 119 is an ink layer, the second bonding layer 119 may contain a solvent, so that the second bonding layer 119 can generate a chemical bond, and the second coating layer 118 and the hardening layer 116 can be better bonded and carried by the chemical action.

[0099] The second bonding layer 119 may also be produced by spraying or silk-screening, where ink is applied onto the second coating layer 118 , and then baked and cured to obtain the second bonding layer 119 , which serves to connect the second coating layer 118 and the hardening layer 116 .

[0100] Therefore, based on the above embodiment, a laminated structure of two texture layers and two coating layers is adopted to further meet the color effect of the tablet computer rear shell 110. The shell 110a provided in the embodiment of the present application also has the effects of metal cool hand feeling, colorful texture appearance on the outer surface and seamless sophistication, effectively improving the richness and competitiveness of the product appearance, and solving the problem that the metal shell in the existing tablet computer cannot have the effects of metal cool hand feeling, colorful texture appearance on the outer surface and seamless sophistication.

[0101] In a possible implementation, the thickness of the middle layer 112 is 10-35 μm. For example, the thickness of the middle layer 112 may be 11 μm or 34 μm.

[0102] In a possible implementation, the thickness of the second texture layer 117 and the first texture layer 113 is 10-25 μm. The thickness of the second texture layer 117 and the first texture layer 113 can be the same or different. For example, the thickness of the second texture layer 117 and the first texture layer 113 can be 11 μm or 24 μm.

[0103] In a possible implementation, the thickness of the hardened layer 116 is 10-25 μm. The thickness of the hardened layer 116 may be 11 μm or 24 μm.

[0104] In a possible implementation, the thickness of the second coating layer 118 and the first coating layer 114 is 50-150 nm. The thickness of the second coating layer 118 and the first coating layer 114 may be the same or different, for example, the thickness of the second coating layer 118 and the first coating layer 114 may be 60 nm or 140 nm. In a possible implementation, when the thickness of the second coating layer 118 and the first coating layer 114 is required to be thicker, the thickness of the second coating layer 118 and the first coating layer 114 may be 300-500 nm. For example, the thickness of the second coating layer 118 and the first coating layer 114 may be 310 nm or 490 nm.

[0105] In a possible implementation, the thickness of the second bonding layer 119 and the first bonding layer 115 is 6-10 μm. The thickness of the second bonding layer 119 and the first bonding layer 115 can be the same or different, for example, the thickness of the second bonding layer 119 and the first bonding layer 115 can be 7 μm or 9 μm.

[0106] The first coating layer 114 and the second coating layer 118 may include one or more of SiO, ZrO 2 , Ti 3 O 5 , and SiO 2 .

[0107] In the embodiment of the present application, the shell 110a may further include a LOGO layer (not shown), the LOGO layer may be located between the first coating layer 114 and the hardening layer 116, or may be located between the second coating layer 118 and the hardening layer 116, and the LOGO layer may be combined with the first bonding layer 115 or the second bonding layer 119 to form a layer structure.

[0108] When the housing 110a provided in the embodiment of the present application is applied to the electronic device 100, see Figure 7 As shown, the outer edge of the housing 110a has a chamfered surface 170, wherein Figure 7 As shown, the width L of the chamfered plane 170 in the metal layer is greater than or equal to 0.5 mm and less than or equal to 3 mm. For example, the width L may be 1 mm or 2 mm.

[0109] Understandably, Figure 7The laminated structure 180 can be a laminated structure consisting of an intermediate layer 112 and a first texture layer 113, or a laminated structure consisting of an intermediate layer 112, a first texture layer 113, a first coating layer 114, a first bonding layer 115 and a hardening layer 116, or a laminated structure consisting of an intermediate layer 112, a first texture layer 113, a first coating layer 114, a first bonding layer 115, a second texture layer 117, a second coating layer 118, a second bonding layer 119 and a hardening layer 116.

[0110] Among them, in the manufacturing process of the shell 110a, when coating each layer structure (such as the intermediate layer 112, the first texture layer 113, the first coating layer 114, the first bonding layer 115 or the hardening layer 116) on the metal plate 111, glue overflow may occur at the place where the two surfaces of the shell 110a interact. In order to ensure the aesthetic appearance of the shell 110a, the part of the shell 110a where the glue overflow occurs can be cut off to form a chamfered plane 170. By setting the chamfered plane 170, the excess glue overflow can be removed without affecting the appearance of the shell 110a. In addition, anodizing can be performed at the chamfered plane 170 to prevent the chamfered plane 170 from being easily corroded after the glue overflow is removed, and to improve the metal hardness, wear resistance and refinement.

[0111] It is understood that in some examples, such as Figure 7 As shown, the chamfered plane 170 extends on the metal plate 111, the middle layer 112 and the first texture layer 113 at the same time, so that the chamfered plane 170 is a highlight chamfered plane. Therefore, in the embodiment of the present application, by including the above-mentioned shell 110a and cooperating with the highlight chamfered plane 170, the back shell 110 has a metallic cool feel, a colorful texture appearance on the outer surface and seamless refinement, which effectively improves the richness and competitiveness of the product appearance.

[0112] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0113] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

Claims

1. A housing, characterized in that: The invention comprises a stacked metal plate, an intermediate layer and a first texture layer, wherein the intermediate layer is located between the metal plate and the first texture layer, and the intermediate layer is used to connect the first texture layer with the metal surface of the metal plate, and the intermediate layer is configured to be formed by applying paint to the metal surface of the metal plate and then thermally curing the paint; The paint contains more than 80% by mass of acrylic resin, and the acrylic resin is obtained by reacting 60% to 90% by mass of modified acrylate and 10% to 40% by mass of polyester acrylic resin.

2. The housing according to claim 1, characterized in that The modified acrylate includes silane-modified acrylate and / or hydroxypropyl-modified acrylate.

3. The housing according to claim 1 or 2, characterized in that: The intermediate layer further comprises additives, and the additives comprise colorants and fillers.

4. The housing according to claim 3, characterized in that: The intermediate layer is formed by coating a mixture of 60%-90% by mass of modified acrylate, 10%-40% by mass of polyester acrylic resin, a curing agent and the additive on the metal plate and then thermally curing the mixture.

5. The housing according to any one of claims 1 to 2 and 4, characterized in that: Also includes: A first coating layer, wherein the first coating layer is located on a side of the first texture layer facing away from the intermediate layer.

6. The housing according to claim 5, characterized in that Also includes: A hardening layer and a first bonding layer, wherein the first bonding layer is located between the first coating layer and the hardening layer; The first bonding layer is used to connect the first coating layer and the hardening layer.

7. The housing according to claim 6, characterized in that Also includes: A second texture layer is located between the first bonding layer and the hardening layer.

8. The housing according to claim 7, characterized in that Also includes: A second coating layer, wherein the second coating layer is located between the second texture layer and the hardening layer.

9. The housing according to claim 8, characterized in that Also includes: The second bonding layer is located between the second coating layer and the hardening layer.

10. The housing according to any one of claims 7 to 9, characterized in that: The first texture layer, the second texture layer and the hardening layer are all UV adhesive layers, and the UV adhesive layers include polyurethane acrylic resin.

11. The housing according to any one of claims 6 to 9, characterized in that: The hardened layer includes at least one of a textured UV texture layer and a non-textured hard film layer, and the hardness of the hardened layer is greater than the hardness of the first texture layer.

12. The housing according to claim 9, characterized in that The first bonding layer and the second bonding layer are adhesive layers formed of any one of polyurethane, polyester, and epoxy resin.

13. The housing according to any one of claims 1-2, 4, 6-9, and 12, characterized in that: The thickness of the intermediate layer is 10-35 μm.

14. The housing according to any one of claims 7 to 9, characterized in that: The thickness of the second texture layer and the first texture layer is 10-25 μm.

15. The housing according to any one of claims 6 to 9, characterized in that: The thickness of the hardened layer is 10-25 μm.

16. The housing according to claim 8, characterized in that The thickness of the second coating layer and the first coating layer is 50-150 nm.

17. The housing according to claim 9, characterized in that The thickness of the second bonding layer and the first bonding layer is 6-10 μm.

18. The housing according to claim 8 or 9, characterized in that: The first coating layer and the second coating layer include one or more of SiO, ZrO2, Ti3O5 and SiO2.

19. The housing according to any one of claims 1-2, 4, 6-9, and 12, characterized in that: The outer edge of the housing has a chamfered surface.

20. The housing according to claim 19, characterized in that The chamfered plane extends simultaneously on the metal plate, the intermediate layer and the first texture layer.

21. The housing according to claim 20, characterized in that The corresponding width in the chamfered plane metal layer is greater than or equal to 0.5 mm and less than or equal to 3 mm.

22. An electronic device, characterized in that: A shell comprising any one of claims 1-21.

23. The electronic device according to claim 22, characterized in that: The electronic device comprises a display screen and a middle frame, wherein the middle frame is arranged between the display screen and the shell, and a side of a metal plate of the shell facing away from the metal plate faces the middle frame.

24. The electronic device according to claim 22 or 23, characterized in that: The electronic device is a tablet computer.

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