KR20120114100A - Method for manufacturing case of mobile device with antenna - Google Patents

Abstract

PURPOSE: An antenna embedded cell phone case manufacturing method is provided to rapidly produce a large amount of antenna modules by forming an antenna pattern of an antenna sheet through etching or patterning. CONSTITUTION: A second intermediate is arranged in a second metallic mold including a molding groove(140). The molding groove has the same shape as the shape of an inside of a cell phone case or an antenna carrier. The second intermediate is molded into the shape of the molding groove. The molded second intermediate is cut based on an antenna pattern. An antenna module is formed(160). The antenna module is connected to the inside of the cell phone case or the antenna carrier. [Reference numerals] (100) Forming a first intermediate by combining a lower layer sheet and a conductive material; (110) Forming an antenna pattern by etching or patterning the conductive material of the first intermediate; (120) Printing ink on the antenna pattern; (130) Forming a guide hole on a second intermediate including the antenna pattern; (140) Inserting the second intermediate into a mold around the guide hole; (150) Molding the second intermediate; (160) Forming an antenna module by cutting the molded second intermediate based on the antenna pattern; (170) Bonding the antenna module in a cellular phone case; (AA) Start; (BB) End

Description

METHOOD FOR MANUFACTURING CASE OF MOBILE DEVICE WITH ANTENNA}

It relates to an antenna module and a case manufacturing method of a mobile phone.

Due to the rapid development of information in recent years, portable wireless communication devices have been widely distributed. The portable wireless communication device goes beyond simple communication means and functions as a payment means such as credit cards and electronic money as well as the Internet, and the demand for miniaturization and light weight with the additional functions of the portable wireless communication device is constantly increasing. The trend is.

Portable wireless communication devices have antennas for communication. In addition, this antenna is usually embedded in a portable wireless communication device, but often protrudes outward when used. The external exposure of such antennas is an obstacle that does not meet the demand for miniaturization and weight reduction.

Accordingly, a built-in antenna has emerged, in which the antenna is not exposed even in use. Typically, the built-in antenna is formed by making a copper sheet in the form of an antenna and attaching it on a thin film. However, this type of built-in antenna has a problem in that it is not easy to make an antenna circuit and is not particularly firmly coupled to a portable wireless communication device.

The present invention provides a method of manufacturing an antenna-embedded mobile phone case that is firmly coupled to a mobile phone case and capable of mass production.

According to an embodiment of the present invention, there is provided a method of manufacturing a mobile phone case with a built-in antenna, after placing a first intermediate body including an antenna pattern in a first mold including a molding groove having a shape substantially the same as an inner shape of a mobile phone case. Forming an antenna module by cutting the first intermediate body formed on the basis of the antenna pattern, and bonding the formed antenna module to the inside of the mobile phone case; .

Molding may include sucking air present in the space between the first intermediate and the first mold.

The molding may include pressing the punch formed on the lower portion of the second mold into the molding groove of the first mold.

The molding may include preheating the punch formed at the bottom of the second mold at 90 degrees to 115 degrees for 5 seconds, and pressing the punch into the molding groove of the first mold for 25 seconds.

The molding may include suctioning air present in the space between the first intermediate body and the first mold, and simultaneously compressing a punch formed in the lower portion of the second mold to the molding groove of the first mold.

Forming may include forming guide holes in the first intermediate body; And positioning the first intermediate body in the first mold by using the guide hole.

The method of manufacturing an antenna-embedded cellular phone case may further include combining a lower sheet made of a plastic resin and a conductive material, and etching or patterning the conductive material to form a first intermediate including an antenna pattern.

Forming the first intermediate may include printing ink on the antenna pattern.

According to another embodiment of the present invention, a method for manufacturing an antenna-embedded cellular phone case includes a lower layer sheet and a conductive material made of a plastic resin, which is at least one of PC resin, ABS resin, and PET resin, using a hot roller. Forming an antenna pattern by etching or patterning a conductive material, printing ink on the formed antenna pattern, forming a first intermediate body, and forming a guide hole in the first intermediate body; Positioning the first intermediate body in a first mold including a forming groove having a shape substantially the same as the inner shape of the mobile phone case by using a guide hole, and air in the space between the first intermediate body and the first mold. Suction, and at the same time, the punch formed in the lower part of the second mold is preheated at 90 to 115 degrees for 5 seconds, and the first mold is molded for 25 seconds. Molding the first intermediate body into a shape of a molding groove by pressing the groove, cutting the molded first intermediate body based on the antenna pattern to form an antenna module, and bonding the antenna module to the inside of the mobile phone case. can do.

According to the disclosed contents, by forming the antenna module in the same shape as the inside of the mobile phone case, and then bonded to the mobile phone case, the antenna module can be firmly coupled to the mobile phone case.

In addition, by forming the antenna pattern of the antenna sheet through etching or patterning it is possible to quickly produce a large amount of antenna module.

1 is a flowchart of a method for manufacturing an antenna-embedded cellular phone case according to an embodiment of the present invention.
2A to 2I are views for explaining a method for manufacturing an antenna-embedded cellular phone case according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Terms used are terms selected in consideration of functions in the embodiment, the meaning of the terms may vary depending on the intention or precedent of the user or operator. Therefore, the meaning of the terms used in the embodiments to be described later, according to the definition if specifically defined herein, and if there is no specific definition should be interpreted as meaning generally recognized by those skilled in the art.

1 is a flowchart of a method for manufacturing an antenna-embedded cellular phone case according to an embodiment of the present invention.

Referring to FIG. 1, a lower sheet composed of a plastic resin and a conductive material are combined (100). The plastic resin may be PC (polycarbonate), ABS (Acrylonitrile-butadiene-styrene), PET (polyethylene terephtalate) resin, or the like. For example, the lower layer sheet and the conductive material can be joined using a hot roller. As another example, an adhesive sheet may be placed between the lower layer sheet and the conductive material, and the lower layer sheet and the conductive material may be compressed to bond the lower layer sheet and the conductive material.

The conductive material is etched or patterned to form an antenna pattern (110). It is possible to remove some of the conductive material to form the antenna pattern. For example, a photosensitive material may be applied onto the conductive material, a patterning mask may be placed on the photosensitive material, and then exposed to light to form a predetermined antenna pattern.

Ink is printed on the formed antenna pattern to form a first intermediate (120). A guide hole is formed in the first intermediate body (130). The guide hole is a space formed for convenience when coupled to other parts such as a mold, a mobile phone case, and the like. In addition, the guide hole may serve to prevent the reference point and the movement of the antenna module to be located in the mold when the antenna module is coupled to the mobile phone case.

The first intermediate body is positioned in the first mold based on the guide hole (140). The first mold may include a molding groove having a shape substantially the same as the shape of the antenna carrier or inside the mobile phone case in which the antenna module is to be mounted.

The first intermediate body is formed into a shape of a forming groove of the first mold (150). For example, the first intermediate may be formed into a shape of a forming groove of the first mold by sucking air existing in the space between the first intermediate body and the first mold. As another example, the punch formed in the lower portion of the second mold may be pressed into the molding groove of the first mold to mold the first intermediate body into the shape of the molding groove of the first mold. At this time, the punch formed in the lower part of the second mold is preheated at 90 degrees to 115 degrees for 5 seconds, and pressed for 25 seconds to the molding groove of the first mold to form the first intermediate body into the shape of the molding groove of the first mold. have. As another example, the air present in the space between the first intermediate body and the first mold is sucked, and at the same time, a punch formed in the lower portion of the second mold is pressed into the forming groove of the first mold to press the first intermediate body. It can be molded into the shape of the molding groove of the mold.

An antenna module is formed by cutting the molded first intermediate body based on the antenna pattern in operation 160. The antenna module is bonded to the inside of the mobile phone case or the antenna carrier (170). In addition, the antenna module may be bonded to various objects.

In the method of manufacturing an antenna-embedded cellular phone case, the antenna module may be molded in the same shape as the inside of the cellular phone case, and then bonded to the cellular phone case, thereby firmly coupling the antenna module to the cellular phone case.

In addition, by forming the antenna pattern of the antenna sheet through etching or patterning it is possible to quickly produce a large amount of antenna module.

2A to 2I are views for explaining a method for manufacturing an antenna-embedded cellular phone case according to an embodiment of the present invention.

Referring to FIG. 2A, a lower sheet 201 made of a plastic resin and a conductive material 202 are combined. The plastic resin may be PC (polycarbonate), ABS (Acrylonitrile-butadiene-styrene), PET (polyethylene terephtalate) resin, or the like. For example, the lower layer sheet 201 and the conductive material 202 may be joined using a hot roller. In another example, an adhesive sheet is placed between the lower layer sheet 201 and the conductive material 202, and the lower layer sheet 201 and the conductive material 202 are pressed to form the lower layer sheet 201 and the conductive material 202. Can be combined.

2B and 2C, the conductive material 202 is etched or patterned to form the antenna pattern 211. Ink is printed 221 on the antenna pattern 211 to form a first intermediate body 210. For example, the color of the ink may be the same as the color of the phone case. Hereinafter, the intermediate body including the antenna pattern 211 or the antenna pattern 211 printed with ink 221 is referred to as a first intermediate body 210. Although the present embodiment has been described with reference to a case in which two antenna patterns are formed, one or more antenna modules may be formed.

Referring to FIG. 2D, a guide hole 231 is formed in the first intermediate body 210 including the antenna pattern 211.

2E and 2F, FIGS. 2E and 2F are views for explaining a process of forming the first intermediate body into a shape of a forming groove of the first mold.

Referring to FIG. 2E, the first intermediate body 210 is positioned in the first mold 240 based on the guide hole 231. The first mold may include a molding groove 241 having a shape substantially the same as the shape of the inside of the mobile phone case in which the antenna module is to be mounted. When the first intermediate body 210 is positioned in the first mold 240, a space is formed between the first intermediate body 210 and the first mold 240. By suctioning air existing in the space between the first intermediate body 210 and the first mold 240 by using the air suction device 242, the first intermediate body 210 is formed in the molding groove of the first mold 240 ( 241) can be molded.

Referring to FIG. 2F, the first intermediate body 210 is positioned in the first mold 240 based on the guide hole 231. The first mold may include a molding groove 241 having a shape substantially the same as the shape of the inside of the mobile phone case in which the antenna module is to be mounted. The punch 244 protruding from the lower part of the second mold 243 is pressed into the molding groove 241 of the first mold 240 so that the first intermediate body 210 is molded into the molding groove 241 of the first mold 240. It can be shaped into a shape. At this time, the second die 243, the punch 244 protruding from the lower 90 [deg.] To 115 5 seconds of warm-up, and 25 seconds pressing the molding groove 241 of the first mold 240 to the first intermediate The 210 may be shaped into a shape of the molding groove 241 of the first mold 240.

For another example, the first intermediate body 210 may be formed into a shape of the forming groove 241 of the first mold 240 by using the method described with reference to FIGS. 2E and 2F simultaneously. For example, a punch formed in the air between the first intermediate body 210 and the first mold 240 is sucked using the air suction device 242, and at the same time protrudes from the lower portion of the second mold 243. The first intermediate body 210 may be molded into the shape of the molding groove 241 of the first mold 240 by pressing 244 to the molding groove 241 of the first mold 240.

As illustrated in FIG. 2G, the molded first intermediate body 250 has a shape of a molding groove 241 of the first mold 240.

Referring to FIG. 2H, the antenna modules 261 are formed by cutting the first intermediate body 250 formed based on the antenna pattern 211.

Referring to FIG. 2I, one of the antenna modules 261 is bonded to the inside of the mobile phone case 270.

In the method of manufacturing an antenna-embedded cellular phone case, the antenna module may be molded in the same shape as the inside of the cellular phone case, and then bonded to the cellular phone case, thereby firmly coupling the antenna module to the cellular phone case.

In addition, by forming the antenna pattern of the antenna sheet through etching or patterning it is possible to quickly produce a large amount of antenna module.

The embodiments described may be constructed by selectively combining all or a part of each embodiment so that various modifications can be made.

It should also be noted that the embodiments are for explanation purposes only, and not for the purpose of limitation. In addition, those skilled in the art will understand that various embodiments are possible within the scope of the technical idea of the present invention.

Further, according to an embodiment of the present invention, the above-described method can be implemented as a code that can be read by a processor on a medium on which the program is recorded. Examples of the medium that can be read by the processor include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, etc., and may be implemented in the form of a carrier wave (e.g., transmission over the Internet) .

Claims (9)

After placing the first intermediate including the antenna pattern in a first mold including a molding groove having a shape substantially the same as the shape of the antenna carrier or inside the mobile phone case, the first intermediate is molded into the shape of the molding groove forming;
Cutting the molded first intermediate body based on the antenna pattern to form an antenna module; And
And bonding the formed antenna module to the inside of the mobile phone case or the antenna carrier.
The method of claim 1,
The molding step,
And a step of sucking air present in the space between the first intermediate body and the first mold.
The method of claim 1,
The molding step,
And pressing the punch formed on the lower portion of the second mold to the molding groove of the first mold.
The method of claim 3, wherein
The molding step,
And preheating the punch formed at the lower portion of the second mold at 90 degrees to 115 degrees for 5 seconds, and pressing the punch into the molding groove of the first mold for 25 seconds.
The method of claim 1,
The molding step,
Manufacturing an antenna-embedded cellular phone case comprising sucking air existing in a space between the first intermediate body and the first mold and simultaneously compressing a punch formed at a lower portion of the second mold into a molding groove of the first mold Way.
The method of claim 1,
The molding step,
Forming a guide hole in the first intermediate body; And
And positioning the first intermediate body in the first mold using the guide hole.
The method of claim 1,
Bonding the lower layer sheet made of plastic resin and the conductive material; And
And etching or patterning the conductive material to form the first intermediate including the antenna pattern.
The method of claim 7, wherein
Forming the first intermediate,
Method of manufacturing an antenna-embedded mobile phone case comprising the step of printing ink on the antenna pattern.
Bonding a lower layer sheet made of a plastic resin, which is at least one of PC resin, ABS resin, and PET resin, and a conductive material using a hot roller;
Etching or patterning the conductive material to form an antenna pattern;
Printing an ink on the formed antenna pattern to form a first intermediate body;
Forming a guide hole in the first intermediate body;
Using the guide hole to position the first intermediate body in a first mold including a molding groove having a shape substantially the same as the shape of the inside of the mobile phone case or the antenna carrier;
The air present in the space between the first intermediate body and the first mold is sucked, and at the same time, the punch formed at the bottom of the second mold is preheated at 90 to 115 degrees for 5 seconds, and the molding of the first mold is performed for 25 seconds. Pressing the grooves to form the first intermediate body into a shape of the molding groove;
Cutting the molded first intermediate body based on the antenna pattern to form an antenna module; And
And bonding the antenna module to the inside of the mobile phone case or to the antenna carrier.

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