KR20120134402A - A mobile phone case to which a rf card is embedded and a mobile phone - Google Patents

A mobile phone case to which a rf card is embedded and a mobile phone Download PDF

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Publication number
KR20120134402A
KR20120134402A KR1020110053271A KR20110053271A KR20120134402A KR 20120134402 A KR20120134402 A KR 20120134402A KR 1020110053271 A KR1020110053271 A KR 1020110053271A KR 20110053271 A KR20110053271 A KR 20110053271A KR 20120134402 A KR20120134402 A KR 20120134402A
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KR
South Korea
Prior art keywords
card
case
chip
loop antenna
portable terminal
Prior art date
Application number
KR1020110053271A
Other languages
Korean (ko)
Inventor
유인종
Original Assignee
(주)이.씨테크날리지
유인종
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 (주)이.씨테크날리지, 유인종 filed Critical (주)이.씨테크날리지
Priority to KR1020110053271A priority Critical patent/KR20120134402A/en
Publication of KR20120134402A publication Critical patent/KR20120134402A/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
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • 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
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0262—Details of the structure or mounting of specific components for a battery compartment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/04—Details of telephonic subscriber devices including near field communication means, e.g. RFID

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Credit Cards Or The Like (AREA)
  • Telephone Set Structure (AREA)

Abstract

PURPOSE: A portable terminal case equipped with an RF(Radio Frequency) card and a portable terminal are provided to install an RF card in an attachable case. CONSTITUTION: An adhesive layer is formed inside of an attachable portable terminal case. A base layer is formed on the adhesive layer. A loop antenna(53) is formed on the base layer. An IC chip(60) has terminals(62,62`). The terminals are connected with an end of the loop antenna. A coating layer coats the loop type antenna and the IC chip.

Description

Mobile terminal case and portable terminal with RF card {A MOBILE PHONE CASE TO WHICH A RF CARD IS EMBEDDED AND A MOBILE PHONE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable terminal case and a portable terminal on which an RF card is mounted, and more particularly, to a portable terminal case and a portable terminal to be mounted on a detachable case which is easy to replace a thin RF card and is inexpensive.

Generally, non-contact RF card among chip embedded RF card is used as security card key to control access or as a micro payment method for paying the subway or bus fee, and there is a loop type antenna and wireless electronic chip inside. While communicating with the card reader installed at the place, the identifier information and the use price information registered in the electronic chip are read and transmitted to the financial server or the security system through the communication means.

In the above-mentioned small payment RF card, a user first receives a service, and then the price information of the provided service and the unique identifier information of the electronic chip embedded in the RF card are immediately or artificially transmitted to the financial server. As a result, after a certain time has passed (payment date), the payment is made by postpay method.

However, in recent years, the harmfulness of electromagnetic waves has been known through various papers and experiments, and in the case of mobile communication terminals, much attention has been focused on electromagnetic hazards than any other electronic products. The mobile communication terminal is applied to apply various kinds of electromagnetic wave blocking means such as a blocking case. In the case of the mobile communication terminal with the RF electronic chip and the loop antenna, the above-described electromagnetic wave blocking means is applied to the loop antenna and the card. RF communication for forming induced electromotive force between readers is disturbed, and the recognition distance is shortened. As a result, communication is incomplete if the terminal is not brought closer to the card reader.

Therefore, in the related art, the RF electronic chip is embedded in a wireless communication terminal, that is, the mobile communication terminal, and the loop antenna is installed in the battery, so that a sufficient recognition distance is obtained regardless of the electromagnetic wave blocking means in the mobile communication terminal. The battery to be mounted not only generates electromagnetic waves by itself but also basically contains a metal component, thereby preventing a sufficient recognition distance as it interferes with RF transmission and reception.

The present invention relates to a built-in RF card attached to a conventional mobile phone to solve the problem of recognition distance, Korean Patent Publication No. 2003-35265 "Built-in contactless electronic card" and 2003-17590 "Mobile communication terminal built-in traffic card" Etc.

Briefly describing the first conventional electronic card, as shown in FIG. 1, the built-in contactless electronic card 2 is a portable terminal 1 carried by a user such as a mobile phone, a PDA, and an IMT-2000 terminal. It is built in a predetermined position, that is, inside the front of the portable terminal 1, or inside the battery fastened to the back. For example, a built-in contactless electronic card 2 between an inner surface of a non-metallic material constituting the external appearance of the portable terminal 1 and a metallic material or device mounted on the inner surface, for example, an EMI shielding device or an applied EMI shielding material. Will be built.

The electronic card 2 stores a loop antenna and user identifier information that can communicate with a card reader installed in a subway or a bus, and transmits the user identifier information according to a request of the card reader, and a request of the card reader. As a result, a ferrite core (22), which is an oxide of iron oxide (Fe 2 O 4 ) and a specific material (such as manganese or zinc), is embedded in the card to cancel interference or interference with electromagnetic waves and magnetic fields. It is composed.

The electronic card 2 is embedded in a predetermined position of the portable terminal 1, and the coating agent 21 is provided on the back of the card, and the upper surface of the coating agent 21 interferes with or interferes with electromagnetic waves and magnetic fields during card reading. The ferrite core 22 is offset, and the roof antenna and the electronic chip 23 are provided on the upper surface of the ferrite core 22, and the adhesive 24 is applied to the upper surface as necessary.

On the other hand, a brief description of the electronic card according to the second prior art, as shown in Figure 2, is embedded in the battery case 10 of the portable terminal, where the terminal battery is a removable type to supply power to the portable terminal Means a conventional rechargeable battery that is mounted to, and as shown in the cross-sectional view shown in FIG. Thus, a traffic card 13 having a built-in RF electronic chip and an etched antenna is installed. The ferrite 12, which is an electromagnetic shielding agent, is disposed between the back of the battery 11 and the traffic card 13. ) Is installed.

However, the conventional methods are all built in the cell phone or the battery, for example, there is a problem that the cell phone or battery should be changed when the card reader is changed or used in a new card recognition device. In addition, there was a problem that can not meet the needs of consumers who want to continue using the existing mobile phone. Also, there was a problem that the recognition distance did not improve much.

Therefore, in order to solve the above problems, the inventors made the invention as shown in Republic of Korea Utility Model Registration No. 335583 as shown in FIG.

The external RF card attaching apparatus attached to the third conventional portable terminal includes a base film 51 having an IC insertion hole 51a on which an IC chip is to be mounted, and a side surface of the base film. An IC support plate (50) formed of a loop antenna (53) formed thereon and a support plate electrode (52) connected to the loop antenna formed on the other side of the base film and for connection with an IC chip terminal; Mounted on the IC support plate 50, a circuit portion 61 is inserted into the IC insertion hole 51a, chip terminals 62, 62 'are electrically connected to the support plate electrode 52, the reader and the loop antenna IC chip 60 for wireless communication through; A ferrite core 40 bound to the inner side (cell phone direction) of the IC support plate 50; Detachable means (30) capable of attaching and detaching the RF card to a portable terminal; And protective coating 70 formed on the outside of the RF card; Characterized in that it comprises a. Therefore, the recognition distance is improved, so that the convenience can be further enhanced, and it is possible to change easily by detachable even when replacing the type of transportation card or reverse mobile phone, which is much more convenient than the conventional built-in type. In addition, it has several advantages that it is excellent in appearance.

However, the third conventional technology also has various problems since the RF antenna is installed to the battery part only. In the case of the conventional technologies, a metallic battery part and a ferrite core for shielding are necessary, In this case, there is a problem that two external RF cards are required because a spare battery needs to be prepared.If there is a problem that two RF cards must be replaced at the same time or a relatively expensive battery must be replaced if the RF card is to be replaced. However, there is a problem in that there is a limit in reducing the thickness.

Furthermore, if the coil is wound around the battery, deformation may occur at 67 ~ 80 degrees for PVC, which is relatively easy to work, and for PC or PET that cannot be deformed even at higher temperatures, the coil is difficult to work or coiled during winding. There was another problem such as not winding well.

The present invention is to solve the above problems, in the case of a portable terminal such as a mobile phone in recent years, with a battery attached to the cover attached to the focus on the fact that there is a gap between the cover and the battery, RF card is installed on the battery cover, but the technology to provide as thin as possible.

A portable terminal case on which the RF card is mounted according to an aspect of the present invention includes: an adhesive layer 14 formed on an inner side of a removable case 10 '; A base layer 15 formed on the adhesive layer 14; A loop antenna (53) formed on the base layer (15); An IC chip (60) having terminals (62, 62 ') connected to ends (53a) of said loop antenna (53); And a coating layer 16 covering the loop antenna 53 and the IC chip 60. Including, the loop antenna 53 is characterized in that the wound so as not to overlap the position of the battery (11).

Preferably, a part of the loop antenna 53 passes through the upper portion of the IC chip 60 so that the antenna coils do not overlap in the vertical direction.

More preferably, the RF card 13 'composed of the adhesive layer 14, the base layer 15, the loop antenna 53, the IC chip 60, and the cover layer 16 is the case 10'. It is characterized in that it is mounted on the depression site.

On the other hand, the portable terminal case mounted with the RF card according to another aspect of the present invention, the adhesive layer 14 formed on the inner surface of the removable case (10 '); A base layer 15 formed on the adhesive layer 14; A loop antenna (53) formed on the base layer (15); And a coating layer 16 covering the loop antenna 53. It includes, but the loop antenna 53 is wound so as not to overlap in the position of the battery 11, IC mounted on the mobile phone body 1 when the removable case (10 ') is mounted to the mobile phone body (1) The end portion 53a of the loop antenna 53 is disposed at a position such that the terminals 62 and 62 'of the chip 60 and the end portion 53a of the loop antenna 53 are in contact with each other. It is done.

On the other hand, the portable terminal equipped with the RF card according to another aspect of the present invention includes a portable terminal case on which the RF card is mounted, and a portable terminal body having the IC chip 60, wherein the antenna coil ( The end portion 53a of the 53 is in contact with the chip terminals 62, 62 'positioned in the main body when the terminal case 10' is mounted, and conversely, when the case 10 'is removed, the chip terminal 62, The contact portion is rounded so as to naturally move away from 62 ', and the chip terminals 62 and 62' are formed while being touched by the fingering means.

According to the present invention, since the RF card is mounted in the removable case, the area of the case is relatively larger than that of the battery, so that the number of antenna windings may be reduced, so the productivity is excellent, and the antenna may be moved out of the metallic battery part. Because it can be deployed, there is no need for ferrite cores, and the RF card can be installed in only one removable case regardless of the number of spare batteries.If you want to replace the RF card, the RF card can be installed without replacing a relatively expensive battery. It is only economical and easy to replace because it only needs to be replaced or replaced only with a new case, and it is possible to significantly reduce the thickness of the mobile phone, which absolutely affects the quality of the mobile phone. In the case of the third conventional technology, it is true that the thickness is actually about 2-3 mm, but recently, cell phone manufacturers require an RF card of about 0.45 mm for the thinner cell phone. The above-mentioned thin RF card can be mounted.

1 is a use state diagram of a first conventional built-in contactless electronic card.
Figure 2 is an exploded perspective view and cross-sectional view of a mobile communication terminal with a second conventional traffic card embedded.
3 is a cross-sectional view of the RF card attachment device to a battery according to the third prior art.
Figure 4 is a mobile phone body and a case picture having a removable case related to the present invention.
5 is a plan view of a mobile phone case mounted with an RF card according to the present invention.
Figure 6 is a cross-sectional view of the mobile phone case mounted with the RF card according to the present invention (AA sectional view of Figure 5).
7 is a cross-sectional view of a mobile phone case equipped with an RF card according to another embodiment of the present invention.
8 is a cross-sectional view of a mobile phone case equipped with an RF card according to another embodiment of the present invention.

Hereinafter, an external RF card attaching apparatus attached to the portable terminal of the present invention will be described in detail with reference to FIGS. 4 to 6.

Figure 4 is a mobile phone body and a case picture having a removable case associated with the present invention, Figure 5 is a plan view of a mobile phone case is mounted with an RF card according to the present invention, Figure 6 is a mobile phone case is mounted with an RF card according to the present invention A cross-sectional view of FIG. 5, that is, AA cross-sectional view of FIG. 5.

First, as shown in FIG. 4, the mobile phone 1, which is a kind of portable terminal, is seated so as to be detachable from the battery seating groove installed in the rear of the main body, and the battery and the mobile phone through the detachable case 10 ′. Protect the back.

In the RF card according to the present invention, as shown in Figs. 5 and 6, the RF loop-type antenna 53 is wound around the edge of the inner side of the removable case 10 ', and the antenna end is also on one side of the inner side of the case. The terminals 62 and 62 'of the mounted IC chip 60 are connected via spot welding or conductive paste.

At this time, the antenna coil is preferably wound around the edge of the case to avoid the camera hole 17 or other protruding parts while not affecting the binding portion 18, so as to reduce the number of turns, moreover, the metal of the battery Avoid winding the part so that no ferrite layer is provided for shielding.

In addition, when the antenna coil is to be wound two or more times, it is preferable that the intermediate rotating coil passes through the center of the chip 60. In this way, the coil and the coil may be wound two or more times without overlapping in the vertical direction. Because it is possible.

The cross-sections of the case 10 'and the RF card 13' will be described in detail with reference to FIG. 6, first, with an adhesive layer having a thickness of approximately 0.08 mm around the IC chip 60 mounted on the inner surface of the case 10 '. 14) is formed, and a base layer 15 such as PVC having a thickness of about 0.1 mm is formed thereon. After that, the coil of the loop type RF antenna 53 (approximately 0.1 mm) is wound around the edge of the base layer 15 so that the end 53a of the RF antenna 53 is located at the chip terminals 62 and 62 '. do. The antenna end portion 53a and the chip terminals 62, 62 'may be connected during the winding of the coil, or may be connected after the coil has been wound.

Thereafter, the coating layer 16 is formed of a material such as silicon having a thickness of about 0.1 mm thereon, thereby completing the RF card 13 '. Therefore, the RF card formed as described above does not exceed 0.48mm even if the coil and the coil overlap, which is the maximum limit required by mobile phone manufacturers. Moreover, as shown in FIG. 17, when the coil and the coil are wound so as not to overlap in the vertical direction, the thickness of the RF card can be thin as about 0.38 mm, so that cell phone makers requesting a thickness of less than 0.5 mm are required. It will be able to satisfy.

However, there may be a part that must be partially shielded. In that case, only the part should be shielded using a double-sided tape mixed with ferrite and adhesive, but this is limited to some spaces, while reducing the thickness of the entire mobile phone. There is no difficulty in maintaining the strength of the case.

For reference, the antenna coil may be considered to be in the form of a PCB, but there is a problem that the process is complicated, the price is expensive, there is a problem of environmental pollution, it is difficult to cope with the model change, and the resistance value does not come out well, In the case of the method of printing the coil, there is a problem that the process is complicated and the resistance value is not uniform. Therefore, it is preferable to wind the coil.

Meanwhile, as shown in FIG. 7 as another embodiment of the present invention, a part of the removable case 10 '(the part where the antenna coil 53 and the IC chip 60 will be located) is excavated, By forming the antenna coil 53 and the IC chip 60, and other necessary adhesive layers 14, base layer 15, and coating layer 16, the case has an embossed shape, thereby reducing the thickness to the maximum while the strength of the case It is possible to keep it.

Finally, another embodiment of the present invention will be described with reference to FIG. 8, which differs from the previous embodiment in that the IC chip 60, which occupies a considerable thickness, is installed in the cellular phone main body 1, and is removable. Part of the case 10 '(part where the antenna coil 53 is to be located) is dug out, and the antenna coil 53 and other necessary adhesive layers 14, base layer 15, and coating layer 16 are disposed at the corresponding portions. When the removable case 10 'is mounted on the cellular phone main body 1, the terminals 62 and 62' of the IC chip and the end portion 53a of the antenna coil 53 come into contact with each other. It is possible to reduce the thickness even further while maintaining the strength of the case.

At this time, the end portion 53a of the antenna coil 53 is in contact with the chip terminals 62 and 62 'positioned in the main body when the case 10' is mounted, and conversely, when the case 10 'is removed, It is preferable that the contact portion is rounded so as to naturally move away from the 62 and 62 ', and the chip terminals 62 and 62' are preferably formed by separate gripping means.

The present invention has been described above with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto, and various modifications are possible within a range that can be easily conceived by those skilled in the art. Therefore, the limitation of the present invention should be limited only by the following claims.

1: handheld terminal 2: electronic card
21: Coating 22: Ferrite Core
23: electronic chip 24: adhesive
10: battery case 11: battery
12: Ferrite 13: Traffic Card
30: adhesive 40: ferrite core
41, 43, 44, 45: PVC 42: Ferrite
50: base 51: base film
51a: IC insertion hole 52: base electrode
53: loop antenna
60: IC chip 61: circuit part
62, 62 ': chip terminal 63: substrate
70: coating agent 80: printing layer
90: shield
10 ': removable case 13': RF card of the present invention
14: adhesive layer 15: base film
16: covering layer 17: camera hole
18: Case binding

Claims (5)

An adhesive layer 14 formed on the inner side of the removable phone case 10 ';
A base layer 15 formed on the adhesive layer 14;
A loop antenna (53) formed on the base layer (15);
An IC chip (60) having terminals (62, 62 ') connected to ends (53a) of said loop antenna (53); And
A coating layer 16 covering the loop antenna 53 and the IC chip 60;
Including,
The loop antenna (53) is a portable terminal case equipped with an RF card, characterized in that the wound so as not to overlap the position of the battery (11). An adhesive layer 14 formed on the inner side of the removable case 10 ';
A base layer 15 formed on the adhesive layer 14;
A loop antenna (53) formed on the base layer (15); And
A covering layer 16 covering the loop antenna 53;
Including,
The loop antenna 53 is wound so as not to overlap the position of the battery 11,
When the removable case 10 'is mounted on the cellular phone main body 1, the terminals 62 and 62' of the IC chip 60 mounted on the cellular phone main body 1 and the end portion 53a of the loop antenna 53 are attached. ), The end portion (53a) of the loop antenna (53) is disposed in a position to be in contact with the RF card. 3. The method according to claim 1 or 2,
Part of the loop-type antenna (53) to pass the upper portion of the IC chip (60) so that the antenna coil is not overlapping in the vertical direction characterized in that the portable terminal case equipped with the RF card. 3. The method according to claim 1 or 2,
The RF card 13 'comprising the adhesive layer 14, the base layer 15, the loop antenna 53, and the cover layer 16 is mounted on the recessed portion of the case 10'. Portable terminal case with card. A portable terminal case equipped with the RF card of claim 2,
Including a portable terminal body having the IC chip 60,
The end portion 53a of the antenna coil 53 is in contact with the chip terminals 62, 62 'positioned in the main body when the terminal case 10' is mounted, and conversely, when the case 10 'is removed, The contact portion is rounded so as to naturally move away from the terminals 62 and 62 ',
The chip terminal (62, 62 ') is a portable terminal, characterized in that formed by being touched by the fingering means.
KR1020110053271A 2011-06-02 2011-06-02 A mobile phone case to which a rf card is embedded and a mobile phone KR20120134402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110053271A KR20120134402A (en) 2011-06-02 2011-06-02 A mobile phone case to which a rf card is embedded and a mobile phone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110053271A KR20120134402A (en) 2011-06-02 2011-06-02 A mobile phone case to which a rf card is embedded and a mobile phone

Publications (1)

Publication Number Publication Date
KR20120134402A true KR20120134402A (en) 2012-12-12

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KR1020110053271A KR20120134402A (en) 2011-06-02 2011-06-02 A mobile phone case to which a rf card is embedded and a mobile phone

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101647981B1 (en) 2015-05-15 2016-08-16 서울전자통신(주) Winding type antenna using multi-layer wiring substrate
KR101704801B1 (en) 2016-05-02 2017-02-08 이재군 Laminate-type antenna using magnetic sheet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101647981B1 (en) 2015-05-15 2016-08-16 서울전자통신(주) Winding type antenna using multi-layer wiring substrate
KR101704801B1 (en) 2016-05-02 2017-02-08 이재군 Laminate-type antenna using magnetic sheet

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