CN107278385B - Terminal shell and terminal - Google Patents
Terminal shell and terminal Download PDFInfo
- Publication number
- CN107278385B CN107278385B CN201780000601.4A CN201780000601A CN107278385B CN 107278385 B CN107278385 B CN 107278385B CN 201780000601 A CN201780000601 A CN 201780000601A CN 107278385 B CN107278385 B CN 107278385B
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- layer
- terminal
- stainless steel
- aluminum
- aluminum alloy
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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
- H05K5/0086—Casings, cabinets or drawers for electric apparatus portable, e.g. battery operated apparatus
-
- 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
- H05K5/04—Metal casings
Abstract
The embodiment of the invention provides a terminal shell. At least one part of terminal shell includes inlayer and skin, the inlayer is aluminium lamination or aluminium alloy layer, the skin is the stainless steel layer, aluminium lamination or aluminium alloy layer are towards the inside at terminal, the stainless steel layer orientation the outside at terminal, the thickness on aluminium lamination or aluminium alloy layer is 0.3-1.0mm, the thickness on stainless steel layer is 0.05-0.3 mm. The terminal shell has the metal appearance effect peculiar to stainless steel, the glossiness of the appearance surface is high, and the manufacturing cost is low. The embodiment of the invention also provides a terminal comprising the terminal shell.
Description
Technical Field
The embodiment of the invention relates to the technical field of terminals, in particular to a terminal shell and a terminal.
Background
In recent years, smart phones with metal appearances are becoming more and more popular with consumers. However, most of the existing metal appearance parts of the smart phone are made of aluminum alloy materials, so that the appearance homogeneity of the smart phone is serious. In addition, the appearance piece made of the aluminum alloy material is made of the aluminum alloy, the shape of the appearance piece is obtained through processing technologies such as stamping, CNC (computer numerical control) and the like, and the special appearance effect of the aluminum alloy is achieved through surface processing technologies such as polishing, sand blasting, anode processing and the like.
Disclosure of Invention
The embodiment of the invention aims to provide a terminal shell and a terminal with the same, wherein the shell has the special metal appearance effect of stainless steel, the appearance surface is high in glossiness, and the manufacturing cost is low.
Specifically, an embodiment of the present invention provides a terminal housing, where at least a portion of the terminal housing includes an inner layer and an outer layer, the inner layer is an aluminum layer or an aluminum alloy layer, the outer layer is a stainless steel layer, the aluminum layer or the aluminum alloy layer faces the inside of the terminal, the stainless steel layer faces the outside of the terminal, the aluminum layer or the aluminum alloy layer has a thickness of 0.3 to 1.0mm, and the stainless steel layer has a thickness of 0.05 to 0.3 mm.
Optionally, the thickness of the aluminum layer or the aluminum alloy layer is 0.5-0.9mm, and the thickness of the stainless steel layer is 0.1-0.2 mm.
The stainless steel of the stainless steel layer comprises at least one of 304 stainless steel, 301 stainless steel, or 316 stainless steel. The aluminum alloy of the aluminum alloy layer comprises at least one of A1050, A5052 and A6063.
Optionally, the inner layer and the outer layer are bonded together with molecular force by pressing.
Optionally, a cupping value of an area of the terminal housing including the inner layer and the outer layer is greater than or equal to 6 mm.
Optionally, the surface of the stainless steel layer has a vickers hardness of greater than or equal to 300.
Optionally, a pull strength of an area of the terminal housing including the inner and outer layers is greater than or equal to 200 megapascals.
Optionally, an elongation of an area of the terminal housing including the inner layer and the outer layer is greater than or equal to 20%.
Optionally, the 180 degree peel force of the area of the terminal housing comprising the inner and outer layers is greater than or equal to 100N when the test spline width is 20 mm.
Optionally, the terminal housing is a terminal rear cover.
The embodiment of the invention also provides a terminal, which comprises the terminal shell.
The terminal shell provided by the embodiment of the invention has the metal appearance effect peculiar to stainless steel, is high in surface glossiness of the appearance, lighter in weight, simple in manufacturing process and low in cost, and is suitable for large-scale industrial production.
Drawings
FIG. 1 is a schematic structural diagram of a composite metal material according to an embodiment of the present invention;
FIG. 2 is a schematic view of a process flow of the composite metal material lamination preparation in the embodiment of the present invention;
FIG. 3 is a process flow diagram of a mobile phone back cover in an embodiment of the invention;
FIG. 4 is a photograph of a mobile phone back cover prepared in accordance with an embodiment of the present invention;
FIG. 5 is a process flow diagram of a rear cover of a mobile phone according to another embodiment of the invention;
FIG. 6 is a schematic cross-sectional view of a rear cover of a mobile phone according to another embodiment of the present invention;
fig. 7 is a schematic front structure view of a mobile phone rear case manufactured in another embodiment of the present invention;
fig. 8 is a schematic diagram of a reverse structure of a rear case of a mobile phone manufactured according to another embodiment of the present invention;
fig. 9 is an exploded view of a terminal according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described below with reference to the drawings.
The embodiment of the invention provides a terminal shell. At least a portion of the terminal housing includes an inner layer and an outer layer. The inner layer is an aluminum layer or an aluminum alloy layer, namely the inner layer is made of aluminum or an aluminum alloy. The outer layer is a stainless steel layer, i.e. the outer layer is made of stainless steel. When the terminal housing is mounted on a terminal, the inner layer faces the inside of the terminal and the outer layer faces the outside of the terminal. The inner layer has a thickness of 0.3-1.0 millimeter (mm), and the outer layer has a thickness of 0.05-0.3 mm.
The stainless steel layer faces the outside of the terminal, i.e. the stainless steel layer is on the outer surface side of the terminal housing, i.e. the user can directly touch the stainless steel layer when using the terminal.
In an embodiment of the present invention, at least a part or all of the terminal housing is made of a composite metal material. Specifically, as shown in fig. 1, a schematic structural diagram of a composite metal material according to an embodiment of the present invention is shown, where the composite metal material includes an aluminum or aluminum alloy layer 11 and a stainless steel layer 12. According to the terminal shell provided by the embodiment of the invention, as part or all of the terminal shell is made of the composite metal material, the stainless steel layer faces the outside of the terminal, namely one side of the stainless steel layer is used as the outer surface of the terminal shell, and one side of the aluminum or aluminum alloy layer is used as the inner surface of the terminal shell, the special appearance effect of the stainless steel can be obtained, and the light weight of the terminal shell can be ensured.
In an optional embodiment of the present invention, the thickness of the aluminum layer or the aluminum alloy layer is 0.5 to 0.9mm, the thickness of the stainless steel layer is 0.1 to 0.2mm, further, the thickness of the aluminum layer or the aluminum alloy layer may be 0.6 to 0.8mm or 0.7mm, and the thickness of the stainless steel layer may be 0.15 mm. The composition ratio of the aluminum or aluminum alloy layer and the stainless steel layer can be set according to actual requirements.
In the embodiment of the present invention, the stainless steel layer may be at least one of 304 stainless steel, 301 stainless steel or 316 stainless steel, and specifically, stainless steel of the following types, such as SUS304, SUS301 and SUS316, may be used, but is not limited to the above types. The aluminum layer or the aluminum alloy layer may be made of 1050 aluminum plate, 5052 aluminum plate, or 6063 aluminum plate, but is not limited thereto. Wherein 1050 aluminum plate is generally pure aluminum plate, 5052 aluminum plate and 6063 aluminum plate are aluminum alloy plates.
In an embodiment of the present invention, the aluminum layer or the aluminum alloy layer and the stainless steel layer are tightly bonded together by a molecular force through pressing. When the test strip width is 20mm, the 180 ° peel force of the area made of the composite metal material on the terminal housing is greater than or equal to 100N (N), for example, the peel force may be 110N, 120N, 130N, etc.
In the embodiment of the invention, the cup projection values of the area made of the composite metal material on the terminal shell, which is ejected from one side of the stainless steel layer or one side of the aluminum layer or the aluminum alloy layer, are both greater than or equal to 6mm, specifically 6-15mm, and further 6-12 mm.
In the embodiment of the present invention, the vickers hardness of the surface of the stainless steel layer is greater than or equal to 300, specifically 300-.
In the embodiment of the invention, the drawing strength of the area made of the composite metal material on the terminal housing is greater than or equal to 200 megapascals (MPa), specifically 200-. The elongation of the region made of the composite metal material is greater than or equal to 20%, specifically, 20% to 60%, and further 30% to 55%.
In the embodiment of the present invention, the terminal housing may be a terminal rear cover, such as a mobile phone rear cover.
As shown in fig. 2, in the embodiment of the present invention, the lamination preparation process of the composite metal material specifically includes: providing a stainless steel raw material 1 and an aluminum or aluminum alloy raw material 2, pressing the two raw materials together through pinch roller compounding to obtain a composite metal material precursor 3, then carrying out heat treatment on the composite metal material precursor 3, carrying out surface planarization treatment after the heat treatment is finished, and finally cutting to obtain a composite metal material 4 with a required size for preparing the terminal shell. Alternatively, the stainless steel raw material may have a thickness in the range of 0.1 to 0.5mm, and the aluminum or aluminum alloy raw material may have a thickness in the range of 0.3 to 10 mm.
In the embodiment of the invention, the terminal shell can be prepared by adopting the following process flow: the method comprises the steps of firstly processing a composite metal material with a required size into the shape of a pre-prepared terminal shell by adopting processing technologies such as stamping, CNC (computerized numerical control) and the like, and then realizing the special metal appearance decoration effect of stainless steel through surface treatment to obtain the terminal shell. The surface treatment may be at least one of polishing, sand blasting, wire drawing, PVD (physical vapor deposition) coating, and the like.
Specifically, as shown in fig. 3, in the embodiment of the present invention, taking the rear shell of the mobile phone as an example, when the rear shell of the mobile phone is completely made of the composite metal material, the process flow of the preparation may specifically include the following steps:
s31, providing a composite metal material: providing a composite metal material with a required size in a form of a single plate, wherein the composite metal material is composed of a stainless steel layer and an aluminum alloy layer which are mutually laminated and combined; wherein the thickness of the aluminum layer or the aluminum alloy layer of the composite metal material is 0.3-1.0mm, and the thickness of the stainless steel layer is 0.05-0.3 mm; the composition ratio of the stainless steel and the aluminum or the aluminum alloy can be set according to actual requirements, for example, in a specific embodiment, the thickness of the stainless steel layer is 0.1mm, and the thickness of the aluminum alloy is 0.5 mm;
s32, processing shape: processing the composite metal material prepared in the step S31 into the shape of the rear shell of the mobile phone by adopting a stamping and CNC processing technology;
s33, stainless steel surface polishing: polishing the surface of the stainless steel to realize a high-glossiness mirror effect;
s34, coating a polished stainless steel surface: and coating a film on the stainless steel high-gloss mirror surface in an evaporation or sputtering mode, and protecting the stainless steel mirror surface to finally obtain the mobile phone rear shell product. The real object of the back shell of the mobile phone obtained by the embodiment of the invention can be seen in fig. 4. The coating layer can be transparent or colored, and brings more decorative effect to the mirror surface.
In other embodiments of the present invention, after polishing, the special metal appearance decoration effect of stainless steel can be realized by appearance treatment methods such as sand blasting, wire drawing, and PVD coating.
In another embodiment of the present invention, as shown in fig. 5, for example, when the rear shell of the mobile phone is made of a composite metal material and a part of the rear shell of the mobile phone is made of plastic, the process flow of the preparation may specifically include the following steps:
s51, providing a composite metal material: providing a composite metal material with a required size in a form of a single plate, wherein the composite metal material is composed of a stainless steel layer and an aluminum alloy layer which are mutually laminated and combined; wherein the thickness of the aluminum layer or the aluminum alloy layer of the composite metal material is 0.3-1.0mm, and the thickness of the stainless steel layer is 0.05-0.3 mm; the composition ratio of the stainless steel and the aluminum or the aluminum alloy can be set according to actual requirements, for example, in a specific embodiment, the thickness of the stainless steel layer is 0.1mm, and the thickness of the aluminum alloy is 0.5 mm;
s52, processing the shape and filling the plastic into the shape: processing the composite metal material prepared in the step S51 into the shape of the rear shell of the mobile phone and the shape of a subsequent plastic combined structure (namely a plastic filling shape) by adopting a stamping and CNC processing technology; in the embodiment of the invention, after the appearance of the mobile phone rear shell is processed, surface micropore treatment can be carried out, so that countless nanometer micropores are formed on the surface of the composite metal material, thereby being beneficial to subsequent plastic injection molding;
s53, plastic injection molding: injecting plastic into the reserved combination structure in the step S52 to complete plastic injection; wherein the plastic is polybutylene terephthalate;
s54, processing shape: after the plastic injection molding is finished, milling away the redundant composite metal materials and the plastic part through CNC (computer numerical control) processing again to obtain the shape of the required structural part;
s55, polishing the surfaces of stainless steel and plastic: polishing the surface of the stainless steel and the plastic on one side of the stainless steel to realize a high-glossiness mirror effect;
s56, coating a stainless steel and plastic polished surface: and coating the stainless steel and plastic high-gloss mirror surface by evaporation or sputtering, and protecting the stainless steel mirror surface to finally obtain the mobile phone rear shell product.
Fig. 6 is a schematic cross-sectional view of the back cover of the mobile phone obtained in the present embodiment. The mobile phone back shell is composed of a composite metal material 10 and plastic 20, wherein the composite metal material 10 comprises an inner layer (an aluminum or aluminum alloy layer) 11 and an outer layer (a stainless steel layer) 12. Wherein, the surface of the stainless steel layer 12 is a high-gloss mirror surface, and a protective coating film 30 is arranged on the high-gloss mirror surface. Fig. 7 and 8 are schematic structural diagrams of a front surface (i.e., a surface facing the outside of the mobile phone) and a back surface (i.e., a surface facing the inside of the mobile phone) of the mobile phone rear case prepared in the present embodiment, respectively; the front side is the inner surface that a user can directly contact with one side when using the mobile phone, and the back side is the inner surface that can be seen when the back shell of the mobile phone is detached from the mobile phone.
The embodiment of the invention can be suitable for any electronic equipment with a metal appearance structural part, is not limited to a smart phone structural part, and has the same application method as that of a smart phone.
The relevant parts between the embodiments of the invention can be mutually referred.
As shown in fig. 9, an embodiment of the present invention further provides a terminal, specifically a mobile phone, including a display device 110, a middle frame and a main board 120 of the mobile phone, and a metal rear shell 130. The display device 110 is electrically connected to the main board. The motherboard integrates various processors, memories, sensors, circuit modules, and the like. The metal rear case 130 is located at a side facing away from the display device 110, and the metal rear case 130 is located at an outer side of the terminal. The metal rear shell 130 is the mobile phone rear shell prepared as described above in the embodiments of the present invention, and the mobile phone rear shell is made of a composite metal material or is made of a composite metal material.
It should be noted that, according to the disclosure and the explanation of the above description, the person skilled in the art to which the present invention pertains may make variations and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some equivalent modifications and variations of the present invention should be covered by the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (7)
1. A terminal shell is characterized in that at least one part of the terminal shell comprises an inner layer and an outer layer, wherein the inner layer is an aluminum layer or an aluminum alloy layer, the outer layer is a stainless steel layer, the aluminum layer or the aluminum alloy layer faces the inside of the terminal, the stainless steel layer faces the outside of the terminal, the thickness of the aluminum layer or the aluminum alloy layer is 0.7-1.0mm, and the thickness of the stainless steel layer is 0.1-0.2 mm;
the cupping value of the area of the terminal shell comprising the inner layer and the outer layer is greater than or equal to 6 mm;
the Vickers hardness of the surface of the stainless steel layer is greater than or equal to 300;
the drawing strength of a region of the terminal shell, including the inner layer and the outer layer, is greater than or equal to 200 MPa;
the terminal housing has an elongation of 20% or more in a region including the inner layer and the outer layer.
2. The terminal housing of claim 1, wherein the stainless steel of the stainless steel layer comprises at least one of 304 stainless steel, 301 stainless steel, or 316 stainless steel.
3. The terminal housing of claim 1, wherein the aluminum or aluminum alloy of the aluminum or aluminum alloy layer comprises at least one of 1050 aluminum sheet, 5052 aluminum sheet, or 6063 aluminum sheet.
4. The terminal housing of claim 1, wherein the inner layer and the outer layer are bonded together with molecular force by compression.
5. The terminal housing of any one of claims 1-4, wherein a 180 degree peel force of a region of the terminal housing comprising the inner and outer layers is greater than or equal to 100N when a test spline width is 20 mm.
6. A terminal housing according to any of claims 1-4, characterized in that the terminal housing is a terminal back cover.
7. A terminal, characterized in that the terminal comprises a terminal housing according to any of claims 1-6.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017101514538 | 2017-03-14 | ||
| CN201710151453 | 2017-03-14 | ||
| PCT/CN2017/085131 WO2018166063A1 (en) | 2017-03-14 | 2017-05-19 | Terminal housing and terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107278385A CN107278385A (en) | 2017-10-20 |
| CN107278385B true CN107278385B (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201780000601.4A Active CN107278385B (en) | 2017-03-14 | 2017-05-19 | Terminal shell and terminal |
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| CN (1) | CN107278385B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825648A (en) * | 2017-10-24 | 2018-03-23 | 珠海市魅族科技有限公司 | Composition metal shell, preparation method and electronic equipment |
| CN110662377B (en) * | 2018-06-29 | 2022-03-15 | 比亚迪股份有限公司 | Shell, preparation method thereof and electronic product |
| CN110662378B (en) * | 2018-06-29 | 2021-11-12 | 比亚迪股份有限公司 | Shell, preparation method thereof and electronic product |
| CN110654081A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Shell, preparation method thereof and electronic product |
| CN110662376B (en) * | 2018-06-29 | 2022-03-18 | 比亚迪股份有限公司 | Shell, preparation method thereof and electronic product |
| CN110254023A (en) * | 2019-06-19 | 2019-09-20 | 福州索科特材料科技有限公司 | A kind of processing method of 3D hot press composite board |
| CN112653813B (en) * | 2019-10-11 | 2022-11-11 | 华为技术有限公司 | Camera decoration part and preparation method and terminal thereof |
| CN111906500A (en) * | 2020-06-30 | 2020-11-10 | 深圳艾利门特科技有限公司 | Surface treatment process of steel-aluminum composite board |
| WO2022183957A1 (en) * | 2021-03-05 | 2022-09-09 | 江苏康瑞新材料科技股份有限公司 | Composite plate, composite plate texturing device, and manufacturing method |
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| CN101992567A (en) * | 2009-08-26 | 2011-03-30 | 比亚迪股份有限公司 | Stainless steel/aluminum composite material and preparation method thereof |
| CN103249267A (en) * | 2012-02-13 | 2013-08-14 | 宇龙计算机通信科技(深圳)有限公司 | Outer casing adopting composite structure and manufacture process thereof |
| CN106163165A (en) * | 2015-04-07 | 2016-11-23 | 深圳富泰宏精密工业有限公司 | Electronic installation and preparation method thereof |
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2017
- 2017-05-19 CN CN201780000601.4A patent/CN107278385B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992567A (en) * | 2009-08-26 | 2011-03-30 | 比亚迪股份有限公司 | Stainless steel/aluminum composite material and preparation method thereof |
| CN103249267A (en) * | 2012-02-13 | 2013-08-14 | 宇龙计算机通信科技(深圳)有限公司 | Outer casing adopting composite structure and manufacture process thereof |
| CN106163165A (en) * | 2015-04-07 | 2016-11-23 | 深圳富泰宏精密工业有限公司 | Electronic installation and preparation method thereof |
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Effective date of registration: 20210427 Address after: Unit 3401, unit a, building 6, Shenye Zhongcheng, No. 8089, Hongli West Road, Donghai community, Xiangmihu street, Futian District, Shenzhen, Guangdong 518040 Patentee after: Honor Device Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |
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