KR20140011855A - Insert antenna module and fabrication method for the same - Google Patents

Insert antenna module and fabrication method for the same Download PDF

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Publication number
KR20140011855A
KR20140011855A KR1020120079331A KR20120079331A KR20140011855A KR 20140011855 A KR20140011855 A KR 20140011855A KR 1020120079331 A KR1020120079331 A KR 1020120079331A KR 20120079331 A KR20120079331 A KR 20120079331A KR 20140011855 A KR20140011855 A KR 20140011855A
Authority
KR
South Korea
Prior art keywords
antenna
film
insert
case frame
antenna module
Prior art date
Application number
KR1020120079331A
Other languages
Korean (ko)
Inventor
박광순
Original Assignee
엘에스엠트론 주식회사
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 엘에스엠트론 주식회사 filed Critical 엘에스엠트론 주식회사
Priority to KR1020120079331A priority Critical patent/KR20140011855A/en
Publication of KR20140011855A publication Critical patent/KR20140011855A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • B29C2045/1673—Making multilayered or multicoloured articles with an insert injecting the first layer, then feeding the insert, then injecting the second layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3456—Antennas, e.g. radomes

Abstract

The present invention provides an insert antenna module and a fabrication method for the same including: a step of preparing a film antenna and a case frame; a step of primarily insert-molding the film antenna to the seating part of the case frame; and a step of forming a secondary molded material to cover the film antenna.

Description

Insert antenna module and its manufacturing method {INSERT ANTENNA MODULE AND FABRICATION METHOD FOR THE SAME}

The present invention relates to an insert antenna module and a method of manufacturing the same, and more particularly, to an insert antenna module having a structure in which the radiator is embedded in the injection molding of the device and a method of manufacturing the same.

In general, an antenna for transmitting and receiving radio waves is installed in a communication terminal such as a mobile phone or a radio.

In accordance with the trend toward miniaturization and lightening of communication terminals, antennas have also been miniaturized. In recent years, insert antennas embedded in devices have been widely used.

Techniques for insert antennas are disclosed in Korean Patent Publication Nos. 2005-13705, 2007-0021643, and 2004-0105156.

Korean Patent Laid-Open No. 2005-13705 discloses a built-in antenna device of a portable terminal in which an antenna plate is embedded. The built-in antenna device may include a shield plate grounded to a ground coated with a conductive material on a predetermined area of an inner surface of a terminal, an antenna plate disposed to face the shield plate while approaching an inner surface of the terminal, and the shield plate and an antenna And a carrier interposed between the plates.

However, the built-in antenna has a disadvantage in that the manufacturing process is cumbersome and expensive because the antenna plate, the carrier, and the PCB must be assembled separately.

Korean Patent Laid-Open Publication No. 2007-0021643 discloses a method of manufacturing an embedded antenna that manufactures an internal antenna by metal powder injection molding to efficiently use a space inside a terminal and manufactures antennas of various shapes.

However, the manufacturing method of the built-in antenna has a limitation in the simplification of the manufacturing process because the process of mounting the injection-molded built-in antenna in the antenna housing of the terminal.

Korean Patent Laid-Open Publication No. 2004-0105156 discloses a method of manufacturing a built-in antenna for forming a carrier having a pattern using a mold, injecting a resin for plating into the pattern of the carrier, and then plating a conductive material to form a radiator. .

According to the built-in antenna manufacturing method it is not necessary to assemble the radiator and the carrier, the manufacturing process can be simplified. However, the internal antenna manufacturing method has a problem that it is difficult to obtain a precise radiator pattern because partial plating is difficult and plating is performed around not only the resin for plating.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an insert antenna module having a structure in which a film-type antenna is integrated in a case, and a method of manufacturing the same.

The present invention in order to achieve the above object is made of a resin frame; A film antenna injecting a primary insert into a seating portion of the case frame; And a secondary injection molding covering the film antenna.

The film antenna has a structure in which a SUS or a radiator of a conductive material is formed on a polymer film.

A bent structure is provided at the edge of the case frame, and the edge of the film antenna may be bent to correspond to the bent structure of the edge.

According to another aspect of the invention, (a) preparing a film antenna and the case frame; (b) injecting a primary insert into the seating portion of the case frame; And (c) forming a secondary injection molding covering the film antenna.

In the step (a), the film antenna is preferably produced by forming a radiator of SUS or a conductive material on a film of a polymer material.

In the step (a), a bent structure is provided at the edge of the case frame, and bending the edge of the film antenna to correspond to the bent structure of the edge;

In the step (c), direct injection, fusion, ultrasonic bonding or adhesive bonding may be performed when the secondary injection molding product is formed.

According to the present invention, since the antenna module is manufactured by primary and secondary injection molding of the film antenna with respect to the case frame, the manufacturing process is simple and the antenna can be easily slimmed.

In the case of applying the present invention, since the film antenna is molded in the case frame, it can be effectively protected from external impact.

According to another aspect of the present invention, since the radiator of the film antenna can be formed of SUS material, it is easy to maintain the shape when the film antenna is bent, and the plating process is omitted, thereby simplifying the process and reducing the cost.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further the understanding of the technical idea of the invention. And should not be construed as limiting.
1 is an exploded perspective view showing the configuration of an insert antenna module according to an embodiment of the present invention,
2 is a flowchart illustrating a method of manufacturing an insert antenna module according to an embodiment of the present invention;
3 is a detailed process chart of performing a method of manufacturing an insert antenna module 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. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

1 is an exploded perspective view showing the configuration of an insert antenna module according to an embodiment of the present invention.

Referring to FIG. 1, an insert antenna module according to a preferred embodiment of the present invention may include a case frame 100 made of a resin material and a primary portion of a seating portion 101 of the case frame 100. The film is inserted into the insert 110, and the second injection molding 120 covering the film antenna (110).

The case frame 100 is injection molded by resin such as polycarbonate (PC), polycarbonate (PC), and ABS (acrylonitrile-butadiene-styrene), for example. The case frame 100 is coupled to or becomes part of a case of the communication terminal, and is not limited to the example illustrated in the drawings and may be configured in various shapes.

The film antenna 110 includes a polymer base film and a radiator formed on the base film. The material of the radiator may be variously changed depending on the frequency of use or the structure of the radiator. Preferably, the radiator is formed of a metal material such as stainless steel (SUS) or a conductive material such as a conductive polymer material that does not corrode.

The secondary injection molding 120 is formed to cover the film antenna 110 inserted into the seating portion 101 of the case frame 100 to protect the film antenna 110 from internal / external shocks to prevent breakage. .

2 is a flowchart illustrating a method of manufacturing an insert antenna module according to an exemplary embodiment of the present invention.

Referring to FIG. 2, the method of manufacturing an insert antenna module according to an exemplary embodiment of the present invention includes a process of manufacturing a film antenna 110 (S10), and mounting the film antenna 110 to the case frame 100. Bending the film into a predetermined shape so as to correspond to the unit 101 (step S20), first inserting the film antenna 120 into the case frame 100 (step S30), and the film antenna ( A second injection process (step S40) of covering 120 with an injection product.

3 illustrates a specific process of performing a method of manufacturing an insert antenna module according to an exemplary embodiment of the present invention.

Referring to FIG. 3, a method of manufacturing an insert antenna module according to an exemplary embodiment of the present invention may include a process of fabricating a film antenna 110, a process of bending a film antenna 110, and a film. And a step (c) of injecting the antenna 110 into the case frame 100 in a primary insert, and a step (d) of forming a secondary injection product 120 covering the film antenna 110.

In the manufacturing process (a) of the film antenna 110, a film-type antenna is manufactured by forming a radiator pattern of a metal material or conductive material such as SUS on a polymer film.

In the bending process (b) of the film antenna 110, the edge of the film antenna 110 is bent to correspond to a predetermined bending structure provided at the edge of the case frame 100. Here, the film antenna 110 may be bent in various shapes according to the shape of the case frame 100 or the component arrangement form. In this case, the film antenna 110 having the SUS radiator has an advantage of easy shape maintenance after bending.

A mounting portion 101 for accommodating the film antenna 110 is provided at one side of the case frame 100. The seating portion 101 is a portion defined by the bending structure of at least one edge of the case frame 100 and the inner bottom portion adjacent to the bending structure, and is not limited to the example shown in the drawings and may be configured in various shapes. Can be.

In the first insert injection process (c) of the film antenna 110, insert injection is performed in a state in which the film antenna 110 having at least one edge portion is disposed on the seating portion 101 of the case frame 100.

In the secondary injection molding process (d), injection molding is performed to cover the film antenna 110 on which the primary insert injection process is completed. Here, the secondary injection 120 may be formed by a bonding process using direct injection, fusion, ultrasonic bonding or adhesive.

In the first insert injection process, the fixing of the film antenna 110 is performed by a predetermined lower mold (not shown), and the height of the fixing protrusion (not shown) fixing the film antenna 110 is greater than the thickness of the case frame. Should be low. Since the fixing protrusion is covered by the secondary injection molding 120, the hole due to the fixing protrusion does not occur in the final product.

The primary and secondary injection process as described above may be performed by a conventional double injection machine, or a general injection machine such as a vertical, horizontal, rotary injection machine.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not to be limited to the details thereof and that various changes and modifications will be apparent to those skilled in the art. And various modifications and variations are possible within the scope of the appended claims.

100: case frame 101: seating portion
110: film antenna 120: secondary injection

Claims (7)

A case frame made of resin material;
A film antenna injecting a primary insert into a seating portion of the case frame; And
Insert antenna module comprising; secondary injection molding covering the film antenna. The method of claim 1,
The film antenna is an insert antenna module, characterized in that having a structure formed with a SUS or a conductive material radiator on a film of a polymer material. The method of claim 1,
A bending structure is provided at the edge of the case frame,
Insert antenna module, characterized in that the edge of the film antenna is bent to correspond to the bending structure of the edge end. (a) preparing a film antenna and a case frame;
(b) injecting a primary insert into the seating portion of the case frame; And
(C) forming a secondary injection molding covering the film antenna; manufacturing method of an insert antenna module comprising a. 5. The method of claim 4, wherein in step (a)
The film antenna is a manufacturing method of the insert antenna module, characterized in that to produce a film made of a SUS or a conductive material radiator on the film. 5. The method of claim 4, wherein in step (a)
A bending structure is provided at the edge of the case frame,
Bending the edge of the film antenna to correspond to the bending structure of the edge end; manufacturing method of an insert antenna module further comprising. The method of claim 4, wherein in step (c),
The method of manufacturing an insert antenna module characterized in that for performing the direct injection, fusion, ultrasonic bonding or adhesive bonding process when forming the secondary injection.
KR1020120079331A 2012-07-20 2012-07-20 Insert antenna module and fabrication method for the same KR20140011855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120079331A KR20140011855A (en) 2012-07-20 2012-07-20 Insert antenna module and fabrication method for the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120079331A KR20140011855A (en) 2012-07-20 2012-07-20 Insert antenna module and fabrication method for the same

Publications (1)

Publication Number Publication Date
KR20140011855A true KR20140011855A (en) 2014-01-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120079331A KR20140011855A (en) 2012-07-20 2012-07-20 Insert antenna module and fabrication method for the same

Country Status (1)

Country Link
KR (1) KR20140011855A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160082893A (en) * 2014-12-29 2016-07-11 주식회사 이랜텍 Housing of mobile communication device and method of manufacturing the same in which antenna pattern if formed

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160082893A (en) * 2014-12-29 2016-07-11 주식회사 이랜텍 Housing of mobile communication device and method of manufacturing the same in which antenna pattern if formed

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