KR101744215B1 - Metal case of mobile terminal and manufacturing method thereof - Google Patents
Metal case of mobile terminal and manufacturing method thereof Download PDFInfo
- Publication number
- KR101744215B1 KR101744215B1 KR1020150078981A KR20150078981A KR101744215B1 KR 101744215 B1 KR101744215 B1 KR 101744215B1 KR 1020150078981 A KR1020150078981 A KR 1020150078981A KR 20150078981 A KR20150078981 A KR 20150078981A KR 101744215 B1 KR101744215 B1 KR 101744215B1
- Authority
- KR
- South Korea
- Prior art keywords
- metal
- metal enclosure
- mobile terminal
- present
- frame
- Prior art date
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Classifications
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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
- H05K5/04—Metal casings
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casings For Electric Apparatus (AREA)
- Telephone Set Structure (AREA)
Abstract
A metal case for a mobile terminal and a method of manufacturing the same are provided.
The present invention provides a method of manufacturing a metal enclosure, A step of preparing a metal enclosure including the metal enclosure frame and the rear case formed integrally with the lower surface of the metal enclosure frame by charging the metal enclosure frame into the metal mold and then injecting molten metal into the metal enclosure frame ; A step of coating the manufactured metal case; Removing the coating layer formed on the surface of the metal enclosure forming the metal enclosure; And a step of forming an oxide film on the surface of the metal enclosure by anodizing the metal enclosure with the coating layer removed.
Description
BACKGROUND OF THE
As the functions are diversified, the terminal is implemented in the form of a multimedia device having a complex function of, for example, taking pictures or moving pictures, playing music or moving picture files, receiving games and receiving broadcasts have.
Such a terminal may be divided into a mobile terminal and a stationary terminal depending on whether the terminal is movable or not. Among them, the mobile terminal is a portable device having at least one function that can carry out voice and video communication, a function to input and output information, and a function to store data while being portable.
Among the various parts constituting the mobile terminal, since the metal case is exposed as an external appearance of the mobile terminal, excellent external quality is required.
As a conventional method for securing the exterior quality of the metal case of the mobile terminal, a metal case is manufactured by using die casting, then the metal case is polished to a predetermined position, and then the metal case is painted Method. However, the above method is relatively easy and economical, but there is a problem that the exterior quality of the metal case is not good due to the characteristics of the die casting product.
Therefore, in order to solve the problem of the prior art, as shown in FIG. 1, a metal case of a mobile terminal is manufactured through a mechanical process such as CNC machining, and then the metal case is painted or anodized in a subsequent process, A technique for improving the external quality of the product is being developed. However, this technology can achieve excellent exterior quality by the anodizing treatment of the product, but it takes a lot of time and cost to manufacture the metal case, which is problematic in that it is uneconomical.
Therefore, there is a demand for a new technology which can easily manufacture a metal case for a mobile terminal, while ensuring the external quality of the product by an anodizing process.
SUMMARY OF THE INVENTION Accordingly, the present invention has been made to overcome the problems of the prior art, and it is an object of the present invention to provide a metal outer case for a mobile terminal by an INSERT injection molding method, And it is an object of the present invention to provide a method of manufacturing a metal frame for a mobile terminal that exhibits an exterior quality.
It is another object of the present invention to provide a metal case for a mobile terminal manufactured by the above manufacturing method.
Further, the technical problems to be solved by the present invention are not limited to the technical problems mentioned above, and other technical problems which are not mentioned can be understood from the following description in order to clearly understand those skilled in the art to which the present invention belongs .
According to an aspect of the present invention,
A step of providing a metal outer frame;
A step of preparing a metal enclosure including the metal enclosure frame and the rear case formed integrally with the lower surface of the metal enclosure frame by charging the metal enclosure frame into the metal mold and then injecting molten metal into the metal enclosure frame ;
A step of coating the manufactured metal case;
Removing the coating layer formed on the surface of the metal enclosure forming the metal enclosure; And
And a step of forming an oxide film on the surface of the metal enclosure by anodizing the metal enclosure from which the painted layer has been removed, to a method for manufacturing a metal enclosure for a mobile terminal.
Further, according to the present invention,
A metal sheath frame having an oxide film formed on its surface by anodizing; And
And a rear case integrally formed with the lower surface of the metal enclosure frame and having a coating layer formed on the surface thereof, the rear case being manufactured by die casting
In the present invention, the metal constituting the metal sheath frame may be any one of an aluminum alloy, a magnesium alloy, a titanium alloy, and a stainless steel.
Also, in the present invention, the metal enclosure can be manufactured by forging and extrusion molding.
The metal sheath frame can also be manufactured through mechanical processing such as CNC.
Further, in the present invention, the rear case may be made of at least one selected from the group consisting of Al, Mg, Zn and Cu.
The present invention having the above-described structure can easily manufacture a metal enclosure frame by forging and extruding, and includes a rear case integrally formed with a lower surface of a metal enclosure frame by an INSERT method in a subsequent die casting process It is economical.
Also, the metal case formed in the manufacturing process is painted, and then the coating layer formed on the surface of the metal case is removed and anodized to facilitate the metal case for a mobile terminal having excellent exterior quality of two tone .
1 is a schematic view showing a metal outer frame for a mobile terminal manufactured by a conventional machining method.
2 is a schematic view schematically showing the appearance of a typical mobile terminal.
3 (ae) is a schematic view showing a manufacturing process of a metal case for a mobile terminal through a manufacturing method according to an embodiment of the present invention.
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
However, the embodiments of the present invention may be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The shape and the size of the elements in the drawings may be exaggerated for clarity and the same elements are denoted by the same reference numerals in the drawings. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.
Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.
The
However, it will be readily appreciated by those of ordinary skill in the art that the configuration according to the embodiments described herein may be applied to fixed terminals such as a digital TV, a desktop computer, and the like, .
2 is a schematic view schematically showing the appearance of a typical mobile terminal. As shown in FIG. 1, the
However, the present invention is not limited thereto. The metal frame may be a slide type in which two or more bodies are relatively movably coupled, a bar type, a folder type, a swing type , Swivel type, and so on.
3 (a-e) are schematic views showing a manufacturing process of a metal case for a mobile terminal through a manufacturing method according to an embodiment of the present invention.
3 (a), in the present invention, first, a
In the present invention, the
Also, in the present invention, the metal constituting the
Next, in the present invention, the metal
In the present invention, it is preferable to use a metal or an alloy composed of at least one selected from the group consisting of Al, Mg, Zn, and Cu, although it is not limited to the specific kind of the non-ferrous metal component and its component range.
The non-ferrous metal component is also a component constituting the
Subsequently, in the present invention, as shown in Fig. 3 (c), the
3 (d), the coating layer formed on the surface of the
In the present invention, as shown in FIG. 3 (e), the
However, the present invention is not limited to the specific production process conditions of the anodizing process, and general anodizing process conditions well known in the art can be used. For example, the surface of the
Further, in the present invention, a coloring step may be additionally provided to the anodized metal
Next, a metal sheath for a mobile terminal of the present invention will be described.
The
Here, the
In addition, in the present invention, the metal constituting the
The
In the present invention, the
As described above, in the present invention, the
Therefore, the
While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of course, this is possible. Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by equivalents as well as the following claims
110 ......... Metal outer frame
130 ......... rear case
Claims (10)
A step of preparing a metal enclosure including the metal enclosure frame and the rear case formed integrally with the lower surface of the metal enclosure frame by charging the metal enclosure frame into the metal mold and then injecting molten metal into the metal enclosure frame ;
A step of coating the manufactured metal case;
Removing the coating layer formed on the surface of the metal enclosure forming the metal enclosure; And
And forming an oxide film on the surface of the metal enclosure by anodizing the metal enclosure from which the painted layer has been removed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020150078981A KR101744215B1 (en) | 2015-06-04 | 2015-06-04 | Metal case of mobile terminal and manufacturing method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020150078981A KR101744215B1 (en) | 2015-06-04 | 2015-06-04 | Metal case of mobile terminal and manufacturing method thereof |
Publications (2)
Publication Number | Publication Date |
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KR20160143905A KR20160143905A (en) | 2016-12-15 |
KR101744215B1 true KR101744215B1 (en) | 2017-06-12 |
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KR1020150078981A KR101744215B1 (en) | 2015-06-04 | 2015-06-04 | Metal case of mobile terminal and manufacturing method thereof |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016204339A1 (en) * | 2015-06-19 | 2016-12-22 | Tianjin M&C Electronics Co., Ltd. | Metal frame and method of manufacturing the metal frame for the mobile communication terminal |
KR101880251B1 (en) * | 2017-05-22 | 2018-07-20 | (주) 장원테크 | A method for manufacturing case having matal strengthening member, and case therefrom |
KR102018127B1 (en) * | 2017-08-04 | 2019-09-04 | 이성수 | Method of Manufacture for Titanium Alloy With High Electrostatic Transmission |
CN112746301B (en) * | 2019-10-31 | 2022-12-27 | 华为技术有限公司 | Manufacturing method of shell of electronic equipment, shell and electronic equipment |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100695530B1 (en) * | 2005-07-14 | 2007-03-15 | 유진호 | Multicolor formation method of aluminum surface |
KR101201630B1 (en) * | 2011-05-16 | 2012-11-14 | 박갑세 | Cover for portable terminal and manufacturing method thereof |
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2015
- 2015-06-04 KR KR1020150078981A patent/KR101744215B1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100695530B1 (en) * | 2005-07-14 | 2007-03-15 | 유진호 | Multicolor formation method of aluminum surface |
KR101201630B1 (en) * | 2011-05-16 | 2012-11-14 | 박갑세 | Cover for portable terminal and manufacturing method thereof |
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KR20160143905A (en) | 2016-12-15 |
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