CN111246692A - Shell, preparation method of shell and electronic device with shell - Google Patents
Shell, preparation method of shell and electronic device with shell Download PDFInfo
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- CN111246692A CN111246692A CN201811448864.4A CN201811448864A CN111246692A CN 111246692 A CN111246692 A CN 111246692A CN 201811448864 A CN201811448864 A CN 201811448864A CN 111246692 A CN111246692 A CN 111246692A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
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Abstract
A shell comprises a first shell and a second shell, wherein the first shell is annular and comprises an inner surface and an outer surface opposite to the inner surface; the second shell comprises a peripheral wall, and the peripheral wall is sleeved on the outer surface of the first shell, wherein the second shell is of a composite structure and comprises at least one composite material layer, and each composite material layer comprises a single layer or a plurality of layers of superposed composite layers. The invention also provides a preparation method of the shell and an electronic device with the shell.
Description
Technical Field
The invention relates to a shell, a preparation method of the shell and an electronic device with the shell.
Background
With the arrival of the 5G communication era, the integrated all-metal mobile phone rear shell is abandoned by the mobile terminal due to interference on antenna signals, and non-metal materials such as plastics, composite plates, glass and ceramics have little interference on the antenna signals, but the plastics and the composite plates are difficult to endow products with high-end, atmosphere and stable gas quality, so that additional value of the products cannot be reflected, and the overall strength of the glass and the ceramic materials does not reach the level of application as a shell core mechanism (middle frame/integrated rear shell) of an electronic product. In view of the above problems, the industry mainly uses different materials and corresponding surface treatment processes to realize the processes, such as plastic material matching with baking finish, in-mold decoration process, glass and ceramic material matching with grinding and polishing, printing, and Physical Vapor Deposition (PVD) process, but all have some problems, for example: (1) the plastic material process has the following defects: a. after the plastic material is formed, the appearance and the reliability requirement specification can be met only by performing paint baking coating or printing decoration for many times; b. the surface hardness and the integral strength of the plastic shell are insufficient; c. the baking varnish process has serious environmental pollution; (2) the glass material process has the following defects: a. the glass forming process is complex, the 3D structure is more difficult to form, and the process and the yield are not easy to control; b. the product structure of the glass shell is not enough, and the strength requirement of the mechanical component of the electronic product can not be met; (3) defects of the ceramic material process: a. the ceramic dry pressing forming processing technology cannot form a complex structure in the shell of the electronic product, and the complex structure needs to be processed after CNC (computerized numerical control) processing, grinding and thinning, polishing and the like to reach the required specification of the product size and the appearance; b. the zirconia ceramic material widely applied in the industry as a mechanism shell generally has the brittleness problem and poor anti-falling performance; c. the stable production color of the ceramic shell is single, and the appearance is mainly black and white; d. the ceramic grinding and polishing process generates a large amount of ceramic grinding waste and sewage, which increases the environmental burden.
Disclosure of Invention
Accordingly, it is desirable to provide a housing with high structural strength and colorful appearance. The invention also provides a preparation method of the shell and an electronic device with the shell.
A shell comprises a first shell and a second shell, wherein the first shell is annular, the first shell comprises an inner surface and an outer surface opposite to the inner surface, the second shell comprises a peripheral wall, the peripheral wall is sleeved on the outer surface of the first shell, the second shell is of a composite structure and comprises at least one composite material layer, and each composite material layer comprises a single layer or a plurality of layers of superposed composite layers.
A preparation method of a shell comprises the following steps:
preparing a first shell, wherein the first shell is annular and comprises an inner surface and an outer surface opposite to the inner surface;
and forming a second shell on the first shell to further form a shell, wherein the second shell comprises a peripheral wall, the peripheral wall is sleeved on the outer surface of the first shell, the second shell is of a composite structure and comprises at least one composite material layer, and each composite material layer comprises a single layer or a plurality of layers of superposed composite layers.
An electronic device includes the housing.
In conclusion, the shell has the advantages of obvious appearance texture, excellent hardness and wear resistance, and no influence on antenna signals. Meanwhile, due to the superposition and compounding of the composite layers, the strength and the toughness of the shell are improved. In addition, the shell 10 has simple manufacturing process, does not have the defects of paint baking process, edge fat and the like, does not need complex spraying and polishing manufacturing processes, and has environment-friendly and pollution-free process.
Drawings
Fig. 1 is a schematic structural diagram of an electronic device according to a preferred embodiment of the invention.
Fig. 2 is a schematic structural diagram of a housing in the electronic device shown in fig. 1.
Fig. 3 is a schematic structural diagram of a first housing of the housings shown in fig. 2.
Fig. 4 is a partial cross-sectional view of the first housing.
FIG. 5 is a schematic partial cross-sectional view taken along line V-V in FIG. 2.
Fig. 6 is a schematic partial cross-sectional view of the first embodiment of the second housing.
FIG. 7 is a schematic partial cross-sectional view of a second embodiment of a second housing.
Fig. 8A is a partially sectional view showing embodiment 1 of the third comparative example of the second housing.
Fig. 8B is a partially sectional view showing embodiment 2 of the third embodiment of the second housing.
Fig. 8C is a partially sectional view showing embodiment 3 of the third embodiment of the second housing.
Fig. 9A is a partially sectional view showing embodiment 1 of a fourth embodiment of a second housing.
Fig. 9B is a partially sectional view showing embodiment 2 of the fourth embodiment of the second housing.
Fig. 9C is a partially sectional view showing embodiment 3 of the fourth embodiment of the second housing.
Fig. 10 is a schematic partial cross-sectional view of a housing.
FIG. 11 is a schematic view, partially in section, of another embodiment of a housing.
Fig. 12 is a schematic structural view of another embodiment of the housing shown in fig. 1.
Description of the main elements
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, an electronic device 100 is provided according to a preferred embodiment of the invention. The electronic device 100 may be, but is not limited to, a mobile phone, a tablet computer, a notebook, a smart wearable device, and the like. In the present embodiment, the electronic device 100 is taken as a mobile phone for illustration.
The electronic device 100 includes a housing 10, a display 30 and electronic components for implementing predetermined functions thereof. The display screen 30 is disposed on the housing 10 to form an accommodating space together with the housing 10. The electronic element is contained in the containing space. The electronic component may be, but is not limited to, a battery, a circuit board, a camera module, and the like.
Referring to fig. 2 and 3, the housing 10 includes a first housing 11 and a second housing 13.
The first housing 11 is annular and serves as a support structure for the housing 10. The first housing 11 includes an inner surface 111 and an outer surface 113 disposed opposite to the inner surface 111. The two side edges of the inner surface 111 and the outer surface 113 are a first edge 112 and a second edge 114, respectively. The cross-sectional shape of the first housing 11 may be, but is not limited to, a crescent structure as shown in fig. 4 or a similar rectangular structure as shown in fig. 5.
Referring to fig. 2, in the present embodiment, the first housing 11 is a rectangular ring structure. Four corners of the first shell 11 are all round corners. The first housing 11 may be made of a metal material, a non-metal material, or a metal and non-metal composite material. The metal material can be aluminum alloy, stainless steel, titanium alloy, magnesium alloy or other types of metal die casting materials. The aluminum alloy may be, but is not limited to, a 5-series aluminum alloy material, a 6-series aluminum alloy material, and a 7-series aluminum alloy material. The stainless steel may be, but is not limited to, SUS304, SUS316, and SUS 316L. The titanium alloy may be, but is not limited to, TC4 and TA 2. The non-metallic material may be different types of engineered or fibrous materials. The engineering material may be, but is not limited to, Polycarbonate (PC), Polyamide (PA), polybutylene terephthalate (PBT), polyphenylene sulfide (PPS), and Polyetheretherketone (PEEK). The fiber material may be, but is not limited to, glass fibers and aramid fibers. The metal and nonmetal composite material can be any one of the metal material and the nonmetal material which are matched and combined.
Referring to fig. 4 and 5, the second housing 13 has a substantially U-shaped cross section, and includes a bottom wall 131 and a peripheral wall 133. The peripheral wall 133 surrounds the peripheral edge of the bottom wall 131. The peripheral wall 133 is matched with the first housing 11, so that the outer surface 113 of the first housing 11 can be just attached to the surface of the peripheral wall 133 facing the bottom wall 131. The first edge 112 of the first housing 11 can abut against the bottom wall 131 or a joint between the bottom wall 131 and the peripheral wall 133.
The second housing 13 is a composite structure. In the present embodiment, the following preferred embodiments of the second housing 13 are given.
Referring to fig. 6, a first preferred embodiment of the second housing 13 is shown. The second housing 13 includes a composite layer 132.
In the present embodiment, the composite layer 132 includes at least one composite layer. The composite layer is made of a composite material. The composite material comprises a powder material, a coupling agent and a coupling agent. Specifically, 50-90% of powder material, 9-49% of coupling agent and 0.01-5% of coupling agent are mixed and made into a composite layer. The raw material ratio for preparing the composite layer is mass percent. A single layer or a plurality of stacked composite layers may be used as the composite layer 132. The powder material can be a ceramic powder material or a non-ceramic powder material. The ceramic powder material may be, but is not limited to, alumina ceramic, zirconia ceramic, boron nitride, silicon carbide, and boron carbide. The non-ceramic powder material may be, but is not limited to, titanium oxide, calcium oxide, vitreous silica powder, and mineral-based powder. The shape of the powder material can be spherical or irregular, and is preferably spherical. The coupling agent may be, but is not limited to, one or more of phenolic resin, epoxy resin, and any other type of thermosetting resin. The coupling agent may be, but is not limited to, one or more of a silane coupling agent, a titanate coupling agent, an aluminate coupling agent, a bimetallic coupling agent, a phosphate coupling agent, and a borate coupling agent. The powder material is used as a preparation raw material of the second shell 13, and is used for improving the strength of the shell 10 and enriching the appearance effect and texture of the shell 10. The coupling agent is used for improving the mechanical processing performance (such as cutting performance and grinding and polishing performance) of the composite material, so that the composite layer can be formed and processed at lower temperature. The coupling agent is used as an interface agent between the powder material and the coupling agent and is used for improving the bonding strength between the powder material and the coupling agent.
Further, an appearance layer 15 is formed on the surface of the composite material layer 132 away from the first shell 11 to serve as an appearance surface of the shell 10, so that the appearance decoration effect of the shell 10 is improved. The appearance layer 15 may be formed on the surface of the composite material layer 132 by spraying, transfer printing (thermal transfer printing or water transfer printing), vacuum coating, glazing with ceramic glaze, or the like.
Referring to fig. 7, a second preferred embodiment of the second housing 13 is shown. The second housing 13 comprises several layers 132 of composite material. Wherein each composite layer 132 has a respective color. Thus, a plurality of composite material layers 132 with different colors are stacked, and a color mixing and stacking principle is combined, so that the second shell 13 with a colorful appearance effect is obtained. Wherein, the color of the composite material layer 132 can be adjusted adaptively according to actual needs.
In this embodiment, the second housing 13 includes three layers of composite material 132. For convenience of description, the three composite material layers 132 are defined as a first composite material layer 132a, a second composite material layer 132b, and a third composite material layer 132 c. The first composite material layer 132a, the second composite material layer 132b and the third composite material layer 132c have different colors, so that the second shell 13 with colorful appearance effect can be formed by sequentially overlapping the first composite material layer 132a, the second composite material layer 132b and the third composite material layer 132 c.
Referring to fig. 8A, 8B and 8C, a third preferred embodiment of the second housing 13 is shown. The second shell 13 comprises at least one composite layer 132 and at least one fibrous layer 134. The fiber layer 134 may be made of one or more of glass fiber and aramid fiber. In this embodiment, the fiber layer 134 is made of a mixture of glass fibers and aramid fibers. Specifically, glass fibers and aramid fibers are woven to obtain fiber cloth with different textures and thicknesses, and then the fiber cloth is subjected to fiber pre-dipping through different resin materials to form pre-dipped fiber cloth. A single layer or a plurality of layers of prepreg fiber cloth can be used as the fiber layer 134. The resin material may be a thermosetting resin or a thermoplastic resin.
In this embodiment, the at least one composite material layer 132 and the at least one fiber layer 134 are sequentially disposed at intervals to form the second shell 13. The composite material layer 132 away from the first housing 11 serves as an external appearance surface of the housing 10. Please refer to the following embodiments.
Embodiment mode 1
Referring to fig. 8A, the second shell 13 includes a composite layer 132 and a fiber layer 134 stacked on the composite layer 132. Wherein the composite material layer 132 serves as an appearance surface of the housing 10.
Embodiment mode 2
Referring to fig. 8B, the second shell 13 includes two composite material layers 132 and a fiber layer 134. The fiber layer 134 is located between two composite material layers 132.
Embodiment 3
Referring to fig. 8C, the second shell 13 includes two composite material layers 132 and two fiber layers 134. The two composite material layers 132 and the two fiber layers 134 are sequentially arranged at intervals. Wherein, the composite material layer 132 far away from the first shell 11 is used as the appearance surface of the shell 10.
Further, the second housing 13 further includes an appearance layer 15. The appearance layer 15 is formed on the surface of the composite layer 132 away from the first housing 11.
Referring to fig. 9A, 9B and 9C, a fourth preferred embodiment of the second housing 13 is shown. The second shell 13 comprises at least one composite layer 132 and at least one fibrous layer 134.
In this embodiment, the at least one composite material layer 132 and the at least one fiber layer 134 are sequentially disposed at intervals to form the second shell 13. The fiber layer 134 far from the first housing 11 serves as an appearance surface of the housing 10. It will be appreciated that in order to enrich the appearance of the housing 10, this may be achieved by changing the weave texture and/or colour of the fabric layer 134. Please refer to the following embodiments.
Embodiment mode 1
Referring to fig. 9A, the second shell 13 includes a composite layer 132 and a fiber layer 134 stacked on the composite layer 132. Wherein the fiber layer 134 serves as an appearance surface of the housing 10.
Embodiment mode 2
Referring to fig. 9B, the second housing 13 includes a composite layer 132 and two fiber layers 134. The composite layer 132 is positioned between two fibrous layers 134.
Embodiment 3
Referring to fig. 9C, the second shell 13 includes two composite material layers 132 and two fiber layers 134. The two composite material layers 132 and the two fiber layers 134 are sequentially arranged at intervals. Wherein the fiber layer 134 far away from the first shell 11 is used as the appearance surface of the shell 10.
It is understood that the above mentioned stacking and bonding between the composite layers, the pre-impregnated fiber cloth and the pre-impregnated fiber cloth, the stacking and bonding between the composite layers and the fiber layers, and the bonding between the first housing 11 and the second housing 13 can be achieved by air-heat isostatic pressing.
Referring to fig. 10 and 11, in this embodiment, the housing 10 further includes a bonding layer 17. The bonding layer 17 is formed on an outer surface 113 of the first housing 11 to enhance bonding performance between the first housing 11 and the second housing 13.
Referring again to fig. 10, in the present embodiment, the bonding layer 17 is an aperture layer 171. The orifice layer 171 may be formed by subjecting the first case 11 to any one of E treatment, T treatment, and anodic oxidation treatment. The holes in the bore layer 171 are filled with the composite material layer 132 or the fiber layer 134 in the second housing 13 to form an anchor effect, thereby improving the bonding performance of the first housing 11 and the second housing 13. Wherein the pore size in the pore layer 171 is in the micrometer and nanometer scale.
In other embodiments, the bonding layer 17 is a coating 172. Specifically, the outer surface 113 of the first housing 11 is subjected to a surface treatment using a surface treatment agent, so that the coating layer 172 is formed on the outer surface 113. The surface treatment agent may be, but is not limited to, one or more of a silane coupling agent, a titanate coupling agent, an aluminate coupling agent, a bimetallic coupling agent, a phosphate coupling agent, and a borate coupling agent. It will be appreciated that the surface treatment acts as a coupling agent, comprising two groups of different chemical nature, one being an inorganophilic group, susceptible to chemical reaction with the surface of the mineral; the other is an organophilic group that can chemically react with synthetic resins or other polymers or produce hydrogen bonds. Therefore, the surface treating agent can improve the interface action between inorganic matters and organic matters, thereby greatly improving the combination performance of heterogeneous materials. In this way, the first shell 11 made of the metal and nonmetal composite material can form a strong chemical bond with the composite material layer 132 or the fiber layer 134 on the second shell 13 under the action of the surface treatment agent, thereby forming the shell 10 with stable bonding strength.
Referring again to fig. 11, in another embodiment, the bonding layer 17 is a combination of the porous layer 171 and the coating 172. Specifically, the surface of the first housing 11 on which the porous layer 171 is formed is subjected to surface treatment using a surface treatment agent to form a coating layer 172 on the surface of the porous layer 171. Wherein the pores in the pore layer 171 are partially filled with the coating 172; the composite material layer 132 or the fiber layer 134 in the second housing 13 is formed on the surface of the coating layer 172 and fills the holes in the hole layer 171.
Referring to fig. 12, it is understood that in other embodiments, the second housing 13 may include only the peripheral wall 133. In this way, the second housing 13 has the same ring structure as the first housing 11 and is matched with the first housing. The second housing 13 can be sleeved on the outer surface 113 of the first housing 11.
The invention provides a preparation method of the shell 10, which comprises the following steps:
the first housing 11 is prepared. The material for preparing the first housing 11 may be a metal material, a non-metal material or a metal and non-metal composite material. The metal material can be one or more of aluminum alloy, stainless steel, titanium alloy, magnesium alloy and die-casting metal material. The aluminum alloy may be, but is not limited to, a 5-series aluminum alloy material, a 6-series aluminum alloy material, and a 7-series aluminum alloy material. The stainless steel may be, but is not limited to, SUS304, SUS316, and SUS 316L. The titanium alloy may be, but is not limited to, TC4 and TA 2. The non-metallic material may be different types of engineered or fibrous materials. The engineering material may be, but is not limited to, Polycarbonate (PC), Polyamide (PA), polybutylene terephthalate (PBT), polyphenylene sulfide (PPS), and Polyetheretherketone (PEEK). The fiber material may be, but is not limited to, glass fibers and aramid fibers. The metal and nonmetal composite material can be any one of the metal material and the nonmetal material which are matched and combined.
The first housing 11 is annular and serves as a support structure for the housing 10. The first housing 11 includes an inner surface 111 and an outer surface 113 disposed opposite to the inner surface 111. The two side edges of the inner surface 111 and the outer surface 113 are a first edge 112 and a second edge 114, respectively. The cross-sectional shape of the first housing 11 may be, but is not limited to, a crescent structure as shown in fig. 4 or a similar rectangular structure as shown in fig. 5.
In this embodiment, the first housing 11 is a rectangular ring structure. Four corners of the first housing 11 are all rounded corners. The process of preparing the first housing 11 according to the different selected materials is known to those skilled in the art and will not be described herein.
A second housing 13 is formed on the first housing 11 to form the housing 10.
Specifically, a composite material or prepreg fiber cloth is coated on the second shell 13 to form the second shell 13. The second housing 13 has a substantially U-shaped cross section, and includes a bottom wall 131 and a peripheral wall 133. The peripheral wall 133 surrounds the periphery of the bottom wall 131. The outer surface 113 of the first housing 11 is attached to the surface of the peripheral wall 133 facing the bottom wall 131. The first edge 112 of the first housing 11 can abut against the bottom wall 131 or a joint between the bottom wall 131 and the peripheral wall 133.
Referring to fig. 12, it is understood that in other embodiments, the second housing 13 may include only the peripheral wall 133. In this way, the second housing 13 has the same ring structure as the first housing 11 and is matched with the first housing. The second housing 13 can be sleeved on the outer surface 113 of the first housing 11.
The second housing 13 is a composite structure. In the present embodiment, the following several preferred embodiments of the second housing 13 are given.
Referring to fig. 6, a first preferred embodiment of the second housing 13 is shown. The second housing 13 includes a composite layer 132.
In the present embodiment, the composite layer 132 includes at least one composite layer. The composite layer is made of a composite material. The composite material comprises a powder material, a coupling agent and a coupling agent. Specifically, 50-90% of powder material, 9-49% of coupling agent and 0.01-5% of coupling agent are mixed and made into a composite layer. The raw material ratio for preparing the composite layer is mass percent. A single layer or a plurality of stacked composite layers may be used as the composite layer 132. The powder material can be a ceramic powder material or a non-ceramic powder material. The ceramic powder material may be, but is not limited to, alumina ceramic, zirconia ceramic, boron nitride, silicon carbide, and boron carbide. The non-ceramic powder material may be, but is not limited to, titanium oxide, calcium oxide, vitreous silica powder, and mineral-based powder. The shape of the powder material can be spherical or irregular, and is preferably spherical. The coupling agent may be, but is not limited to, one or more of phenolic resin, epoxy resin, and any other type of thermosetting resin. The coupling agent may be, but is not limited to, one or more of a silane coupling agent, a titanate coupling agent, an aluminate coupling agent, a bimetallic coupling agent, a phosphate coupling agent, and a borate coupling agent. The powder material is used as a preparation raw material of the second shell 13, and is used for improving the strength of the shell 10 and enriching the appearance effect and texture of the shell 10. The coupling agent is used for improving the mechanical processing performance (such as cutting performance and grinding and polishing performance) of the composite material, so that the composite layer can be formed and processed at lower temperature. The coupling agent is used as an interface agent between the powder material and the coupling agent and is used for improving the bonding strength between the powder material and the coupling agent.
Further, an appearance layer 15 is formed on the surface of the composite material layer 132 away from the first shell 11 to serve as an appearance surface of the shell 10, so that the appearance decoration effect of the shell 10 is improved. The appearance layer 15 may be formed on the surface of the composite material layer 132 by spraying, transfer printing (thermal transfer printing or water transfer printing), vacuum coating, glazing with ceramic glaze, or the like.
Referring to fig. 7, a second preferred embodiment of the second housing 13 is shown. The second housing 13 comprises several layers 132 of composite material. Wherein each composite layer 132 has a respective color. Thus, a plurality of composite material layers 132 with different colors are stacked, and a color mixing and stacking principle is combined, so that the second shell 13 with a colorful appearance effect is obtained. Wherein, the color of the composite material layer 132 can be adjusted adaptively according to actual needs.
In this embodiment, the second housing 13 includes three layers of composite material 132. For convenience of description, the three composite material layers 132 are defined as a first composite material layer 132a, a second composite material layer 132b, and a third composite material layer 132 c. The first composite material layer 132a, the second composite material layer 132b and the third composite material layer 132c have different colors, so that the second shell 13 with colorful appearance effect can be formed by sequentially overlapping the first composite material layer 132a, the second composite material layer 132b and the third composite material layer 132 c.
Referring to fig. 8A, 8B and 8C, a third preferred embodiment of the second housing 13 is shown. The second shell 13 comprises at least one composite layer 132 and at least one fibrous layer 134. The fiber layer 134 may be made of one or more of glass fiber and aramid fiber. In this embodiment, the fiber layer 134 is made of a mixture of glass fibers and aramid fibers. Specifically, glass fibers and aramid fibers are woven to obtain fiber cloth with different textures and thicknesses, and then the fiber cloth is subjected to fiber pre-dipping through different resin materials to form pre-dipped fiber cloth. A single layer or a plurality of layers of prepreg fiber cloth can be used as the fiber layer 134. The resin material may be a thermosetting resin or a thermoplastic resin.
In this embodiment, the at least one composite material layer 132 and the at least one fiber layer 134 are sequentially disposed at intervals to form the second shell 13. The composite material layer 132 away from the first housing 11 serves as an external appearance surface of the housing 10. Please refer to the following embodiments.
Embodiment mode 1
Referring to fig. 8A, the second shell 13 includes a composite layer 132 and a fiber layer 134 stacked on the composite layer 132. Wherein the composite material layer 132 serves as an appearance surface of the housing 10.
Embodiment mode 2
Referring to fig. 8B, the second shell 13 includes two composite material layers 132 and a fiber layer 134. The fiber layer 134 is located between two composite material layers 132.
Embodiment 3
Referring to fig. 8C, the second shell 13 includes two composite material layers 132 and two fiber layers 134. The two composite material layers 132 and the two fiber layers 134 are sequentially arranged at intervals. Wherein, the composite material layer 132 far away from the first shell 11 is used as the appearance surface of the shell 10.
Further, the second housing 13 further includes an appearance layer 15. The appearance layer 15 is formed on the surface of the composite layer 132 away from the first housing 11.
Referring to fig. 9A, 9B and 9C, a fourth preferred embodiment of the second housing 13 is shown. The second shell 13 comprises at least one composite layer 132 and at least one fibrous layer 134.
In this embodiment, the at least one composite material layer 132 and the at least one fiber layer 134 are sequentially disposed at intervals to form the second shell 13. The fiber layer 134 far from the first housing 11 serves as an appearance surface of the housing 10. It will be appreciated that in order to enrich the appearance of the housing 10, this may be achieved by changing the weave texture and/or colour of the fabric layer 134. Please refer to the following embodiments.
Embodiment mode 1
Referring to fig. 9A, the second shell 13 includes a composite layer 132 and a fiber layer 134 stacked on the composite layer 132. Wherein the fiber layer 134 serves as an appearance surface of the housing 10.
Embodiment mode 2
Referring to fig. 9B, the second housing 13 includes a composite layer 132 and two fiber layers 134. The composite layer 132 is positioned between two fibrous layers 134.
Embodiment 3
Referring to fig. 9C, the second shell 13 includes two composite material layers 132 and two fiber layers 134. The two composite material layers 132 and the two fiber layers 134 are sequentially arranged at intervals. Wherein the fiber layer 134 far away from the first shell 11 is used as the appearance surface of the shell 10.
It is understood that the above-mentioned stacking and bonding between the composite layers, the stacking and bonding between the prepreg fiber cloth and the prepreg fiber cloth, the stacking and bonding between the composite material layers and the composite material layers, and the stacking and bonding between the composite material layers and the fiber layers can be achieved by gas-thermal isostatic pressing. Specifically, the stacked products are placed in a closed container, the same pressure is applied to the products, and meanwhile, under the action of high temperature and inert nitrogen and argon as pressurizing media, different substances in the products are firmly combined.
In this embodiment, before forming the second housing 13, the first housing 11 may be pretreated to form a bonding layer 17 on the surface of the first housing 11. Wherein the bonding layer 17 can be formed by the following several ways:
(1) the first case 11 is subjected to any one of E treatment, T treatment, and anodic oxidation treatment to form a bonding layer 17 on the surface of the first case 11. Wherein the bonding layer 17 is the orifice layer 171. The holes in the bore layer 171 are filled with the composite layer 132 or the fibre layer 134 in the second housing 13.
(2) The first case 11 is subjected to surface treatment with a surface treatment agent, thereby forming the bonding layer 17 on the surface of the first case 11. The surface treatment agent may be, but is not limited to, one or more of a silane coupling agent, a titanate coupling agent, an aluminate coupling agent, a bimetallic coupling agent, a phosphate coupling agent, and a borate coupling agent. Wherein the bonding layer 17 is the coating 172. The coating 172 is located between the peripheral wall 133 in the second housing 13 and the outer surface 113 of the first housing 11.
(3) First, any one of E treatment, T treatment, and anodic oxidation treatment is performed on the first case 11 to form the pore layer 171 on the surface of the first case 11. Then, the surface of the first housing 11 on which the orifice layer 171 is formed is subjected to surface treatment using a surface treatment agent to form a coating layer 172 on the surface of the orifice layer 171. The bonding layer 17 is the bond between the orifice layer 171 and the coating 172. Wherein the holes in the bore layer 171 are partially filled with the coating 172; the composite material layer 132 or the fiber layer 134 in the second housing 13 is formed on the surface of the coating layer 172 and fills the holes in the hole layer 171.
The housing 10 is subjected to a gas hot isostatic pressing process.
Specifically, the shell 10 is placed in a closed container, the shell 10 is applied with the same pressure of 0.1-100MPa, and is treated for 1-100min at 50-350 ℃ under the action of inert nitrogen and argon as pressurizing media, so that the composite material layer or the fiber layer in the second shell 13 is firmly combined with the first shell 11, and the composite material layer 132 in the second shell 13 is densified, so that the overall mechanical property of the shell 10 is improved, and the perfect shape forming of the shell 10 is ensured.
The present invention will be specifically described below with reference to examples.
Example 1
The first housing 11 is made of aluminum alloy, stainless steel, titanium alloy, magnesium alloy or die-casting metal. Wherein the first housing 11 is annular.
The first housing 11 is subjected to an E treatment or/and a T treatment to form a hole layer 171 on the surface of the first housing 11.
The second housing 13 is formed on the first housing 11 on which the orifice layer 171 is formed. The outer surface 113 of the first housing 11 is attached to the surface of the peripheral wall 133 facing the bottom wall 131, and the composite material layer 132 or the fiber layer 134 at the peripheral wall 133 of the second housing 13 enters the hole of the hole layer 171 of the first housing 11 to form an anchor bolt effect, so as to enhance the bonding performance between the first housing 11 and the second housing 13.
Example 2
The first housing 11 is made of an aluminum alloy. Wherein the first housing 11 is annular.
The first housing 11 is anodized to form an orifice layer 171 on the surface of the first housing 11.
The second housing 13 is formed on the first housing 11 on which the orifice layer 171 is formed. The outer surface 113 of the first housing 11 is attached to the surface of the peripheral wall 133 facing the bottom wall 131, and the composite material layer 132 or the fiber layer 134 at the peripheral wall 133 of the second housing 13 enters the hole of the hole layer 171 of the first housing 11 to form an anchor bolt effect, so as to enhance the bonding performance between the first housing 11 and the second housing 13.
Example 3
The first housing 11 is made of a metal material, a non-metal material, or a metal and non-metal composite material.
The first housing 11 is surface-treated with a surface treatment agent, so that a coating 172 is formed on the surface of the first housing 11. The surface treatment agent may be, but is not limited to, one or more of a silane coupling agent, a titanate coupling agent, an aluminate coupling agent, a bimetallic coupling agent, a phosphate coupling agent, and a borate coupling agent.
The second housing 13 is formed on the first housing 11 on which the coating layer 172 is formed. Wherein the coating 172 is located between the outer surface 113 of the first housing 11 and the surface of the peripheral wall 133 facing the bottom wall 131.
Example 4
The first housing 11 is made of any metal material. Wherein the first housing 11 is annular.
The first case 11 is subjected to any one of E treatment, T treatment, and anodic oxidation treatment to form a pore layer 171 on the surface of the first case 11.
The surface of the first housing 11 on which the orifice layer 171 is formed is subjected to surface treatment using a surface treatment agent to form a coating layer 172 on the surface of the orifice layer 171. Wherein the holes in the bore layer 171 are partially filled with the coating 172 to securely bond with the first housing 11.
A second housing 13 is formed on the surface-treated first housing 11. Wherein, the composite material layer 132 or the fiber layer 134 in the second shell 13 is formed on the surface of the coating 172 and fills the holes in the hole layer.
In summary, the composite material layer 132 or the bonding layer (i.e., the second housing 13) of the composite material layer 132 and the fiber layer 134 is molded on the first housing 11 made of metal or/and nonmetal, so as to obtain the housing 10 with distinct appearance texture and excellent hardness and wear resistance, and without affecting the antenna signal. Meanwhile, due to the overlapping and compounding of the fiber layers 134, the strength and toughness of the shell 10 are improved. In addition, an appearance layer 15 can be formed on the surface of the second shell 13 far away from the first shell 11, so that the surface of the shell 10 has a colorful appearance, and the visual effect is improved. The shell 10 has simple manufacturing process, no defects such as paint baking process fat edge and the like, no complex spraying and polishing manufacturing process, environment-friendly process and no pollution.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (12)
1. A shell comprises a first shell and a second shell, and is characterized in that the first shell is annular and comprises an inner surface and an outer surface opposite to the inner surface; the second shell comprises a peripheral wall, and the peripheral wall is sleeved on the outer surface of the first shell, wherein the second shell is of a composite structure and comprises at least one composite material layer, and each composite material layer comprises a single layer or a plurality of layers of superposed composite layers.
2. The housing of claim 1, wherein each composite layer has a respective color, wherein the composite layers of different colors are stacked to form a second housing having a multi-color appearance effect.
3. The housing of claim 1, wherein the second housing further comprises at least one fiber layer, each fiber layer comprises a single layer or a plurality of layers of prepreg fiber cloth arranged in an overlapping manner, and the at least one composite material layer and the at least one fiber layer are arranged in an overlapping manner at intervals in sequence.
4. The housing of claim 3, further comprising a bonding layer formed between an outer surface of the first housing and a peripheral wall of the second housing.
5. A preparation method of a shell is characterized by comprising the following steps:
preparing a first shell, wherein the first shell is annular and comprises an inner surface and an outer surface opposite to the inner surface;
and forming a second shell on the first shell to further form a shell, wherein the second shell comprises a peripheral wall, the peripheral wall is sleeved on the outer surface of the first shell, the second shell is of a composite structure and comprises at least one composite material layer, and each composite material layer comprises a single layer or a plurality of layers of superposed composite layers.
6. The method of claim 5, wherein the composite layer is formed by mixing 50-90% of powder material, 9-49% of coupling agent and 0.01-5% of coupling agent.
7. The method for manufacturing the shell according to claim 6, wherein the powder material is a ceramic powder material or a non-ceramic powder material, the ceramic powder material is alumina ceramic, zirconia ceramic, boron nitride, silicon carbide or boron carbide, the non-ceramic powder material is titanium oxide, calcium oxide, silica glass micropowder or mineral powder, the coupling agent is one or more of phenolic resin, epoxy resin and any other type of thermosetting resin, and the coupling agent is one or more of silane coupling agent, titanate coupling agent, aluminate coupling agent, bimetallic coupling agent, phosphate coupling agent and borate coupling agent.
8. The method for manufacturing a shell according to claim 5, wherein the second shell further comprises at least one fiber layer, each fiber layer comprises a single layer or a plurality of layers of prepreg fiber cloth arranged in an overlapping manner, and the at least one composite material layer and the at least one fiber layer are arranged in an overlapping manner at intervals in sequence.
9. The method of manufacturing a housing of claim 5, further comprising: before forming the second shell, the first shell is pretreated so as to form a bonding layer on the surface of the first shell, wherein the bonding layer is positioned between the outer surface of the first shell and the peripheral wall of the second shell.
10. The method of manufacturing a housing of claim 8, further comprising: and carrying out gas-heating isostatic pressing treatment on the shell, wherein the shell is placed in a closed container, the same pressure of 0.1-100MPa is applied to the shell, and the shell is treated for 1-100min at 50-350 ℃ under the action of inert nitrogen and argon as pressurizing media, so that the composite material layer or the fiber layer in the second shell is firmly combined with the first shell.
11. The method of manufacturing a housing according to claim 5, wherein the first housing is made of a metallic material, a non-metallic material, or a composite material of a metal and a non-metal.
12. An electronic device comprising the housing of any one of claims 1-4.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811448864.4A CN111246692A (en) | 2018-11-28 | 2018-11-28 | Shell, preparation method of shell and electronic device with shell |
| TW107143903A TWI693007B (en) | 2018-11-28 | 2018-12-06 | Housing, method for manufacturing the same, and electronic device using the housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811448864.4A CN111246692A (en) | 2018-11-28 | 2018-11-28 | Shell, preparation method of shell and electronic device with shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111246692A true CN111246692A (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811448864.4A Pending CN111246692A (en) | 2018-11-28 | 2018-11-28 | Shell, preparation method of shell and electronic device with shell |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111246692A (en) |
| TW (1) | TWI693007B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113347816A (en) * | 2021-05-31 | 2021-09-03 | Oppo广东移动通信有限公司 | Shell, preparation method thereof and electronic equipment |
| CN113347828A (en) * | 2021-05-31 | 2021-09-03 | Oppo广东移动通信有限公司 | Polymer ceramic case and electronic device |
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| WO2017020223A1 (en) * | 2015-08-03 | 2017-02-09 | Hewlett-Packard Development Company, L. P. | Composite material |
| WO2017070070A1 (en) * | 2015-10-19 | 2017-04-27 | Sun Chemical Corporation | Capacitive devices and methods of fabricating same |
| CN207252069U (en) * | 2017-08-04 | 2018-04-17 | 深圳铭锋达精密技术有限公司 | Mobile phone shell and electronic product |
| CN108437574A (en) * | 2018-04-27 | 2018-08-24 | 广东新秀新材料股份有限公司 | Shock resistance case material, preparation method, the preparation method of digital product shell and digital product shell |
| CN207910858U (en) * | 2018-02-09 | 2018-09-25 | 广东欧珀移动通信有限公司 | Mobile phone |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104053323A (en) * | 2013-03-15 | 2014-09-17 | 美商·悦工坊有限公司 | Protective shell structure for portable electronic devices |
| EP3352543B1 (en) * | 2015-09-18 | 2020-12-09 | Toray Industries, Inc. | Housing |
| CN108705786B (en) * | 2018-05-25 | 2023-10-13 | Oppo广东移动通信有限公司 | Housing, electronic device, and manufacturing method of housing |
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2018
- 2018-11-28 CN CN201811448864.4A patent/CN111246692A/en active Pending
- 2018-12-06 TW TW107143903A patent/TWI693007B/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017020223A1 (en) * | 2015-08-03 | 2017-02-09 | Hewlett-Packard Development Company, L. P. | Composite material |
| WO2017070070A1 (en) * | 2015-10-19 | 2017-04-27 | Sun Chemical Corporation | Capacitive devices and methods of fabricating same |
| CN207252069U (en) * | 2017-08-04 | 2018-04-17 | 深圳铭锋达精密技术有限公司 | Mobile phone shell and electronic product |
| CN207910858U (en) * | 2018-02-09 | 2018-09-25 | 广东欧珀移动通信有限公司 | Mobile phone |
| CN108437574A (en) * | 2018-04-27 | 2018-08-24 | 广东新秀新材料股份有限公司 | Shock resistance case material, preparation method, the preparation method of digital product shell and digital product shell |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113347816A (en) * | 2021-05-31 | 2021-09-03 | Oppo广东移动通信有限公司 | Shell, preparation method thereof and electronic equipment |
| CN113347828A (en) * | 2021-05-31 | 2021-09-03 | Oppo广东移动通信有限公司 | Polymer ceramic case and electronic device |
| WO2022252726A1 (en) * | 2021-05-31 | 2022-12-08 | Oppo广东移动通信有限公司 | Housing and preparation method therefor, and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202021440A (en) | 2020-06-01 |
| TWI693007B (en) | 2020-05-01 |
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Application publication date: 20200605 |