KR101571289B1 - manufacturing method of metal case for mobile terminal and metal case for mobile terminal using the same - Google Patents

manufacturing method of metal case for mobile terminal and metal case for mobile terminal using the same Download PDF

Info

Publication number
KR101571289B1
KR101571289B1 KR1020150067170A KR20150067170A KR101571289B1 KR 101571289 B1 KR101571289 B1 KR 101571289B1 KR 1020150067170 A KR1020150067170 A KR 1020150067170A KR 20150067170 A KR20150067170 A KR 20150067170A KR 101571289 B1 KR101571289 B1 KR 101571289B1
Authority
KR
South Korea
Prior art keywords
case
bracket
outer case
metal
forming step
Prior art date
Application number
KR1020150067170A
Other languages
Korean (ko)
Inventor
이세옥
박헌충
김경일
이윤섭
홍성두
문현봉
Original Assignee
후이저우 유-원 포유 컴퍼니 리미티드
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 후이저우 유-원 포유 컴퍼니 리미티드 filed Critical 후이저우 유-원 포유 컴퍼니 리미티드
Priority to KR1020150067170A priority Critical patent/KR101571289B1/en
Application granted granted Critical
Publication of KR101571289B1 publication Critical patent/KR101571289B1/en

Links

Images

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • 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
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0243—Mechanical details of casings for decorative purposes

Abstract

The present invention relates to a metal case for a mobile terminal and especially, to a method for manufacturing the metal case for the mobile terminal and the metal case for the mobile terminal thereof capable of improving productivity and machinability in relation to manufacturing the case of the mobile terminal formed with a metal. The method for manufacturing the metal case for the mobile terminal of the present invention, where an outer case of a metal material is arranged at a rear of the mobile terminal, includes: an outer case molding step of forming the outer case dented downward by performing press-molding of a metal; a bracket forming step of forming a bracket of a synthetic resin material having a board shape in the outer case by insert-injection; and a post-processing step of processing a surface of the outer case. The bracket is fixed and combined to the outer case during insert-injection in the bracket forming step, and the outer case forms the rear of the mobile terminal, and the bracket supports internal components of the mobile terminal.

Description

TECHNICAL FIELD [0001] The present invention relates to a metal case for a portable terminal, and a metal case for a portable terminal. BACKGROUND OF THE INVENTION 1. Field of the Invention [0002]

The present invention relates to a metal case for a portable terminal and, more particularly, to a method for manufacturing a metal case for a portable terminal and a metal case for a portable terminal which can improve productivity and workability in connection with the manufacture of a case of a portable terminal made of metal will be.

Generally, a portable terminal such as a smart phone, a mobile phone, or a tablet PC is required to protect or fix various electronic components mounted therein, or to use a metal frame to enhance durability and to enhance the appearance of the portable terminal. Is required.

In recent years, in order to enhance the durability against external impacts, the use of a metal case whose outer frame is made of metal or whose entire rear surface is made of metal is increasing.

Such a metal case for a portable terminal is composed of a metal body part and a built-in bracket for supporting electronic parts and the like.

The body portion is divided into an outer case constituting the entire outer surface of the rear surface of the portable terminal and a frame formed in the hollow shape and forming the outer frame of the portable terminal.

When the body part is made of metal and the built-in bracket is made of metal and assembled together, there is a disadvantage that the number of assembled parts is low, the productivity is low, and the defective incidence rate is high due to the product tolerance.

In the case of manufacturing a metal case integrally by cutting a metal material with a CNC machine, there is a disadvantage in that it is difficult to realize a product having a complicated shape due to the nature of the cutting process and the machining time is long.

In addition, when the metal case is integrally manufactured through die casting, it is possible to realize a complicated shape. However, due to the characteristics of the alloy for die casting, it is difficult to apply the surface anodizing method and it is difficult to apply the color anodizing method. There are difficult disadvantages.

Korean Patent No. 10-0761087 Korean Patent Publication No. 10-2007-0103580

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to minimize the occurrence rate of defects due to product tolerance, improve processing time and productivity, and to provide a high- A method of manufacturing a metal case for a portable terminal, and a metal case for a portable terminal.

In order to accomplish the above object, the present invention provides a method of manufacturing a metal case for a portable terminal, the case having a metal case disposed on a rear surface thereof, An outer case forming step of forming a recessed outer case; A bracket forming step of forming a bracket made of a synthetic resin material having a plate shape inside the outer case by insert injection; Wherein the bracket is fixedly coupled to the outer case when the insert is injected in the bracket forming step and the outer case forms the rear surface of the portable terminal, The bracket is characterized by supporting internal parts of the portable terminal.

And a groove forming step of forming an engaging groove on an inner surface of the outer case after the outer case forming step, wherein the bracket formed in the bracket forming step is inserted into and fixedly coupled to the engaging groove.

In the outer case forming step, a connecting portion is formed to protrude from the outer surface of the outer case. The outer case includes a portion having the connecting portion formed therein, and the inner groove and the outer groove are formed through the groove. The bracket formed in the step is inserted into the segmental groove, and in the post-process step, the connection portion is cut so that the bracket inserted in the segmental groove is exposed to the outside, and the bracket is processed.

After forming the outer case, a nano groove is formed on the inner surface of the case using NMT (Nano Molding Technology) method.

The outer case is made of aluminum, and the post-forming step includes an anodizing step of coating the outer case with a color film.

The bracket is formed to be smaller in size than the outer case in the outer case, and the heat-generating component of the wireless terminal is brought into contact with the outer case made of metal.

In the bracket forming step, an insert is injected into the bracket while a fixing nut made of a metal material is placed in contact with the inner surface of the outer case. The fixing nut has one end contacting the outer case, Respectively.

According to another aspect of the present invention, there is provided a metal case for a portable terminal, comprising: an outer case formed of a metal material and recessed in a downward direction by press molding to form a rear surface of the portable terminal; And a bracket which is made of a synthetic resin material having a plate shape and which is formed inside the outer case by insert injection and supports internal parts of the portable terminal, And is fixedly coupled to the side surface.

According to the method for manufacturing a metal case for a portable terminal and the metal case for a portable terminal of the present invention as described above, the following effects can be obtained.

Since the outer case is made of metal, especially aluminum, color anodizing of a luxurious feeling is possible through the coating step.

Further, since the bracket disposed inside the outer case is formed through insert injection, the processing time is short, and productivity and economy can be improved.

In addition, since the outer case is formed to cover both the side surface and the rear surface of the portable terminal, it is possible to enhance the self-rigidity of the metal case, It is possible to prevent occurrence of warpage even if it is produced.

In addition, power can be supplied through the fixing nut made of metal, and the heat-generating part such as a battery can directly solve the heat radiation problem because it directly contacts the outer case made of metal.

FIG. 1 is a perspective view of an external case after the external case forming step in the metal case manufacturing method according to the embodiment of the present invention, FIG.
FIG. 2 is a perspective view of an external case having completed the groove processing step in the metal case manufacturing method according to the embodiment of the present invention,
3 is a perspective view of a metal case in a bracket forming step in a metal case manufacturing method according to an embodiment of the present invention,
4 is a perspective view of a metal case in a post-processing step in a metal case manufacturing method according to an embodiment of the present invention,
5 is a perspective view illustrating a state where a battery is inserted into a metal case according to an embodiment of the present invention.

FIG. 1 is a perspective view of an external case having completed the external case forming step in the method of manufacturing a metal case according to an embodiment of the present invention. FIG. 2 is a perspective view of the external case, FIG. 3 is a perspective view of a metal case with a bracket forming step in a metal case manufacturing method according to an embodiment of the present invention, FIG. 4 is a perspective view of a metal case manufacturing method according to an embodiment of the present invention, FIG. 5 is a perspective view illustrating a state where a battery is inserted into a metal case according to an embodiment of the present invention. FIG.

A method of manufacturing a metal case for a portable terminal according to the present invention is a method of manufacturing a metal case in which a metal case is disposed on a rear surface of the case, A machining step, a bracket forming step, and a post-machining step.

The outer case forming step is a step of forming an outer case 10 recessed downward as shown in FIG. 1 by press-forming a metal.

The case 10 forms a rear surface of the portable terminal. The bottom surface and the side surface are integrally connected to each other and have a concave shape.

The metal for forming the outer case 10 may be made of aluminum, magnesium, titanium, or the like, preferably aluminum.

In particular, the metal is preferably composed of 60 series of aluminum.

That is, in the outer case forming step, the flat aluminum is pressed into a three-dimensional shape by a press apparatus to form the outer case 10 having the concave inner downward direction.

At this time, in the outer case forming step, as shown in FIG. 1 (b), the connecting portion 12 is protruded from the outer surface of the outer case 10 through a pressing process.

The connection portion 12 is formed to be protruded from the rear surface of the case 10 when the case 10 is pressed.

In addition, the outer case 10 is formed with a segmented groove 13 through which an inner side surface and an outer side surface of the outer case 10 including the connection portion 12 are formed.

The segmented groove 13 is formed so as to pass through an inner side surface and an outer side surface of the outer case 10 and the connecting portion 12 is formed in a region where the segmented groove 13 is formed, And the outer case 10 is connected to each other.

The segmented grooves 13 are formed together with the connecting portion 12 during the pressing process.

The groove forming step is a step of forming a coupling groove 11 on the inner surface of the outer case 10 through CNC primary machining as shown in FIG.

The engaging groove 11 is recessed in the inner surface of the case 10 and the bracket 20 as an injection product is inserted into the engaging groove 11 in the bracket forming step, (10) and the bracket (20).

In the groove processing step, an earphone jack, a USB terminal, a microphone hole, and the like are formed in the outer case 10.

In addition, a nano groove (not shown) may be formed on the inner surface of the outer case 10 using NMT (Nano Molding Technology) method after the outer case forming step.

As described later, the bracket 20, which is an injection product in the bracket forming step, is inserted into the nano groove to increase the coupling force between the outer case 10 and the bracket 20, as described later.

The coupling grooves 11 and the nano grooves may be all formed, or only one of them may be formed.

The bracket forming step inserts a synthetic resin material into the bracket 20 as shown in FIG. 3 to form a bracket 20 in the case 10.

The bracket 20 is formed in a plate shape and supports the internal parts (LCD, PCB, etc.) of the portable terminal.

Specifically, the LCD is disposed on the front surface of the bracket 20, and the PCB is disposed on the rear surface.

The bracket 20 is formed in a size smaller than that of the case 10 inside the case 10.

The bracket 20 is inserted into the coupling groove 11 and / or the nano groove formed on the inner surface of the outer frame when the insert is injected, and is fixedly coupled to the outer frame.

In addition, a part of the bracket 20 formed in the bracket forming step is inserted into the inside of the segmented groove 13.

The antenna characteristic of the portable terminal can be improved even when the case 10 is made of metal by the bracket 20 inserted into the segmented groove 13. [

In the bracket forming step, as shown in FIG. 3 (a), a metal fixing nut 25 is disposed in contact with the inner surface of the case 10, So that the bracket 20 is insert-ejected.

Thus, the fixing nut 25 has one end contacting the case 10 and the other end projecting to the upper portion of the bracket 20.

The fixing nut 25 is a nut for fixing a PCB or the like to be supported by the bracket 20 and can be also energized because it is in contact with the outer case 10. [

The post-processing step is a step of processing the surface of the outer case 10 cleanly and beautifully.

Specifically, the post-processing step includes a CNC machining step, a polishing step, a sanding step, a DAI CUT step, a coating step, a peeling step, and the like.

In the second CNC machining step, both sides of the outer case 10 after completion of the bracket forming step are ground, and the earphone jack, the USB terminal, the microphone hole, and the like, which are closed by the bracket 20 which is an injection product, are reworked.

The connecting portion 12 is cut so that the bracket 20 inserted into the segment groove 13 is exposed to the outside through the segment groove 13 and the bracket 20 is processed.

As a result, the bracket 20 inserted in the segment groove 13 is exposed to the outside, as shown in FIG.

In the polishing step, the CNC machining station, the outside surface, and the scratches are concealed.

In the sanding step, metal sensitization and surface treatment are performed.

In the die cutting step, both sides of the outer case 10 are smoothly processed.

In the coating step, the surface of the outer case 10, that is, the outer surface, is anodized to coat various colors of coating.

In the peeling step, an unnecessary portion, that is, a portion coated with a coating on the energized portion by the coating step is peeled off using a laser.

The metal case for a portable terminal of the present invention manufactured by the above method includes the case 10 and the bracket 20 as shown in FIG.

The bracket 20 is formed by insert injection from the inside of the outer case 10 formed by the press and is fixedly coupled to the inner side of the outer case 10 at the same time when the insert is injected.

The bracket 20 is made of synthetic resin and has a size smaller than the size of the outer case 10. The bracket 20 may be formed of a material such as a battery 30, The battery 30 is disposed in the lateral direction of the bracket 20 so that the battery 30 is disposed in direct contact with the outer case 10 made of metal rather than the bracket 20 to solve the heat dissipation problem.

In the present invention, since the outer case 10 is made of metal, especially aluminum, color anodizing with a feeling of luxury can be achieved through the coating step.

Further, since the bracket 20 disposed inside the outer case 10 is formed through insert injection, productivity and economy can be improved by shortening the processing time.

In addition, since the outer case 10 of the present invention is formed in a shape that covers both the side surface and the rear surface of the portable terminal, it is possible to enhance the self-rigidity of the metal case, It is possible to prevent the occurrence of warpage even if it is made of a synthetic resin rather than a metal.

Further, since the heat-generating component such as the battery 30 can be directly contacted to the outer case 10 made of metal, heat dissipation can be solved have.

The method for manufacturing a metal case for a portable terminal and the metal case for a portable terminal according to the present invention are not limited to the above embodiments and can be variously modified within the scope of the technical idea of the present invention.

10: external case, 11: engaging groove, 12: connecting portion, 13:
20: Bracket, 25: Fixing nut,
30: Battery,

Claims (8)

A method of manufacturing a metal case for a portable terminal, the case having a metal case disposed on a rear surface thereof,
Forming an outer case, which is recessed in a downward direction by press-forming a metal;
A bracket forming step of forming a bracket made of a synthetic resin material having a plate shape inside the outer case by insert injection;
And a post-processing step of processing the surface of the outer case,
Wherein the bracket is fixedly coupled to the outer case when the insert is injected in the bracket forming step,
The external case forms a rear surface of the portable terminal, the bracket supports internal parts of the portable terminal,
Wherein the connection case is formed on an outer surface of the case, and the case is formed with an inner side surface and an outer side surface through which the connection part is formed,
Wherein the bracket formed in the bracket forming step is inserted into the segmental groove,
Wherein the connecting portion is cut and the bracket is machined so that the bracket inserted into the segmental groove is exposed to the outside in the post-machining step. The method according to claim 1,
And a groove forming step of forming an engaging groove on an inner surface of the outer case after the outer case forming step,
Wherein the bracket formed in the bracket forming step is inserted into and fixedly coupled to the coupling groove. delete The method according to claim 1,
Wherein the nano grooves are formed on the inner surface of the case by using NMT (Nano Molding Technology) method after the outer case forming step. The method according to claim 1,
Wherein the outer case is made of aluminum,
Wherein the post-processing step includes an anodizing step of coating the outer case with a color film. The method according to claim 1,
Wherein the bracket is formed in a size smaller than a size of the outer case inside the outer case,
Wherein the heat-generating part of the portable terminal is in contact with the outer case made of metal. The method according to claim 1,
In the bracket forming step, the bracket is insert-injected while a fixing nut made of a metal is disposed in contact with the inner surface of the case,
Wherein the fixing nut has one end contacting the outer case and the other end protruding to the upper portion of the bracket. A metal case for a mobile terminal manufactured by any one of the manufacturing methods of claim 1, claim 2, and claims 4 to 7.
KR1020150067170A 2015-05-14 2015-05-14 manufacturing method of metal case for mobile terminal and metal case for mobile terminal using the same KR101571289B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150067170A KR101571289B1 (en) 2015-05-14 2015-05-14 manufacturing method of metal case for mobile terminal and metal case for mobile terminal using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150067170A KR101571289B1 (en) 2015-05-14 2015-05-14 manufacturing method of metal case for mobile terminal and metal case for mobile terminal using the same

Publications (1)

Publication Number Publication Date
KR101571289B1 true KR101571289B1 (en) 2015-11-24

Family

ID=54845165

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150067170A KR101571289B1 (en) 2015-05-14 2015-05-14 manufacturing method of metal case for mobile terminal and metal case for mobile terminal using the same

Country Status (1)

Country Link
KR (1) KR101571289B1 (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170070636A (en) * 2015-12-14 2017-06-22 삼성전자주식회사 Electronic device and manufacturing method for housing of the same
WO2017166974A1 (en) * 2016-03-31 2017-10-05 比亚迪股份有限公司 Metal housing for communication device, preparation method therefor, and applications thereof
KR101812982B1 (en) * 2016-08-31 2017-12-28 주식회사 블루콤 Aluminum case attach of insert manufacturing method for Bluetooth headset case deco
CN107567225A (en) * 2017-08-31 2018-01-09 广东欧珀移动通信有限公司 Center preparation method, center, electronic equipment and center matrix
KR101813504B1 (en) 2017-01-16 2018-01-30 (주) 장원테크 Method for manufacturing metal frmae of mobile terminal
WO2018084443A1 (en) * 2016-11-02 2018-05-11 주식회사 영진전기 Method for manufacturing metal frame for mobile terminal
WO2018199499A1 (en) * 2017-04-28 2018-11-01 삼성전자 주식회사 Electronic device and method for manufacturing housing thereof
WO2019022558A1 (en) * 2017-07-27 2019-01-31 (주)케이에이치바텍 Method for manufacturing frame structure for portable terminal
KR20190013394A (en) * 2017-07-27 2019-02-11 주식회사 케이에이치바텍 Manufacturing method of frame structure for portable device
KR101966949B1 (en) * 2017-11-15 2019-04-09 (주)티에스이 The method for fabricating smart phone cover
WO2019135664A1 (en) * 2018-01-08 2019-07-11 삼성전자 주식회사 Device comprising metal housing
US10819011B2 (en) 2017-05-29 2020-10-27 Samsung Electronics Co., Ltd Electronic device comprising an antenna
KR102298646B1 (en) * 2021-04-14 2021-09-06 주식회사 세명테크 Mobile phone case manufacturing method and mobile phone case manufactured by the manufacturing method
US11463570B2 (en) 2018-02-12 2022-10-04 Samsung Electronics Co., Ltd Electronic device and electronic device housing structure
USRE49451E1 (en) 2015-10-15 2023-03-07 Samsung Electronics Co., Ltd. Electronic device case and material layer details of the same

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE49451E1 (en) 2015-10-15 2023-03-07 Samsung Electronics Co., Ltd. Electronic device case and material layer details of the same
KR102383702B1 (en) 2015-12-14 2022-04-07 삼성전자주식회사 Electronic device and manufacturing method for housing of the same
KR20170070636A (en) * 2015-12-14 2017-06-22 삼성전자주식회사 Electronic device and manufacturing method for housing of the same
WO2017166974A1 (en) * 2016-03-31 2017-10-05 比亚迪股份有限公司 Metal housing for communication device, preparation method therefor, and applications thereof
KR101812982B1 (en) * 2016-08-31 2017-12-28 주식회사 블루콤 Aluminum case attach of insert manufacturing method for Bluetooth headset case deco
KR101857366B1 (en) * 2016-11-02 2018-05-14 주식회사 영진전기 Method for manufacturing metal frame for portable terminal
CN108476250A (en) * 2016-11-02 2018-08-31 永进电气株式会社 The metal frame manufacturing method of portable terminal
WO2018084443A1 (en) * 2016-11-02 2018-05-11 주식회사 영진전기 Method for manufacturing metal frame for mobile terminal
KR101813504B1 (en) 2017-01-16 2018-01-30 (주) 장원테크 Method for manufacturing metal frmae of mobile terminal
WO2018199499A1 (en) * 2017-04-28 2018-11-01 삼성전자 주식회사 Electronic device and method for manufacturing housing thereof
KR20180121218A (en) * 2017-04-28 2018-11-07 삼성전자주식회사 Electronic device and manufacturing method for housing of the same
US11202376B2 (en) 2017-04-28 2021-12-14 Samsung Electronics Co., Ltd. Electronic device including housing and method for manufacturing housing thereof
KR102276886B1 (en) * 2017-04-28 2021-07-14 삼성전자주식회사 Electronic device and manufacturing method for housing of the same
US10819011B2 (en) 2017-05-29 2020-10-27 Samsung Electronics Co., Ltd Electronic device comprising an antenna
KR101964360B1 (en) 2017-07-27 2019-04-02 (주)케이에이치바텍 Manufacturing method of frame structure for portable device
KR20190013394A (en) * 2017-07-27 2019-02-11 주식회사 케이에이치바텍 Manufacturing method of frame structure for portable device
WO2019022558A1 (en) * 2017-07-27 2019-01-31 (주)케이에이치바텍 Method for manufacturing frame structure for portable terminal
CN107567225A (en) * 2017-08-31 2018-01-09 广东欧珀移动通信有限公司 Center preparation method, center, electronic equipment and center matrix
KR101966949B1 (en) * 2017-11-15 2019-04-09 (주)티에스이 The method for fabricating smart phone cover
KR20190084455A (en) * 2018-01-08 2019-07-17 삼성전자주식회사 Apparatus including metal housing
WO2019135664A1 (en) * 2018-01-08 2019-07-11 삼성전자 주식회사 Device comprising metal housing
KR102326235B1 (en) 2018-01-08 2021-11-15 삼성전자 주식회사 Apparatus including metal housing
US11434579B2 (en) 2018-01-08 2022-09-06 Samsung Electronics Co., Ltd. Device comprising metal housing
US11463570B2 (en) 2018-02-12 2022-10-04 Samsung Electronics Co., Ltd Electronic device and electronic device housing structure
KR102298646B1 (en) * 2021-04-14 2021-09-06 주식회사 세명테크 Mobile phone case manufacturing method and mobile phone case manufactured by the manufacturing method

Similar Documents

Publication Publication Date Title
KR101571289B1 (en) manufacturing method of metal case for mobile terminal and metal case for mobile terminal using the same
KR101571288B1 (en) manufacturing method of metal case for mobile terminal
US10931800B2 (en) Method for manufacturing housing and mobile terminal
CN107756722B (en) Mobile phone shell and preparation method thereof
US20120267989A1 (en) Device housing and method for making same
KR102174187B1 (en) Components of an electronic device and methods for their assembly
CN109571871B (en) Compression mold, housing of electronic device, and method for manufacturing housing
WO2018133732A1 (en) Housing manufacturing method and mobile terminal
US20150021064A1 (en) Metallic housing of electronic device and manufacturing method thereof
CN102637062B (en) Notebook computer enclosure and manufacturing method thereof
WO2018001071A1 (en) Method of forming through hole in metal member, electronic apparatus housing, and electronic apparatus
US20070155445A1 (en) Metal case for portabel terminal and method for manufacturing the same
TWI606775B (en) Electronic device and method for manufacturing the same
CN107497986B (en) Shell manufacturing method, shell and mobile terminal
US20170078460A1 (en) Frame for mobile communication terminal and method of manufacturing the same
CN102384096B (en) Fan and manufacture method thereof
CN108232408A (en) Mobile equipment and its manufacturing method
CN105149436A (en) Outer plate stamping process
CN110933880B (en) Cover plate manufacturing method and electronic equipment
CN101862821A (en) Manufacture process of stainless steel zinc covering alloy shell
WO2013123737A1 (en) Mobile terminal housing and fabrication method therefor
CN110524790B (en) Middle frame manufacturing method, middle frame and electronic equipment
CN107896462B (en) Shell, manufacturing method thereof and mobile terminal
CN112654456A (en) Method for manufacturing frame structure for portable terminal
CN106657506B (en) Metal-plastic double-layer mobile phone shell and manufacturing method thereof

Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee