KR100770904B1 - Antenna device of portable terminal - Google Patents

Abstract

The present invention relates to an RF ID antenna device of a portable terminal, comprising: a housing constituting a battery pack of the terminal; A battery cell attached to an inner side of the housing; An antenna frame mounted to an inner side of the housing and provided to surround the battery cell; And antenna means attached along an outer circumferential surface of the antenna frame; The antenna frame is made of an insulating material to disclose an RF ID antenna device of a portable terminal to block the electromagnetic interference between the battery cell and the antenna means. The RF ID antenna device of the portable terminal configured as described above is installed in a form surrounding the outer circumferential surface of the battery cell attached to the inner surface of the battery pack, and does not exceed the thickness of the battery cell, thereby preventing the overall thickness of the battery pack from increasing. It became. As a result, this has contributed to the miniaturization of the portable terminal by making it possible to install a service fee payment system using the portable terminal without increasing the thickness of the portable terminal.

Terminal, Billing System, RFID Antenna, Battery Pack

Description

ANTENNA APPARATUS FOR PORTABLE TERMINAL}

1 is an exploded perspective view illustrating a battery pack in which an RFID antenna device of a portable terminal according to an embodiment of the prior art is installed;

2 is an exploded perspective view illustrating a portable terminal in which an RFID antenna is installed in a battery pack according to a preferred embodiment of the present invention;

3 is an exploded perspective view illustrating the battery pack illustrated in FIG. 2;

4 is a diagram illustrating a configuration of a portable terminal according to an exemplary embodiment of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable terminal, and more particularly to a radio frequency identification antenna device mounted on a battery pack of a portable terminal.

In general, the term 'portable terminal' refers to a communication device that provides voice information, data communication function, etc. between a user and a service provider or a user and a user while performing wireless communication with a base station. Initially, mobile communication service was limited to services such as short text transmission and voice call. However, with the rapid development of mobile communication technology, the service areas such as multimedia, traffic information, financial information, and video call such as video are gradually expanding. to be. In this example, the service fee payment system using the portable terminal replaces payment means such as cash, credit card, electronic money, and the like. The service fee is provided by installing a contactless electronic chip that stores personal information such as user financial information in a portable terminal, and an RF ID antenna that generates induction electromotive force by wirelessly communicating with an RF reader such as a service provider's payment terminal. Payment, the amount of money can be made.

1 is an exploded perspective view illustrating a battery pack 10 in which an RFID antenna device of a portable terminal according to an exemplary embodiment is installed. As shown in FIG. 1, the RFID antenna device of a portable terminal according to an exemplary embodiment of the present disclosure includes a loop antenna 14 attached to a battery cell 12.

The battery pack 10 includes a battery cell 12 attached to inner surfaces of the housings 11a and 11b, a shield plate 13 attached to an upper surface of the battery cell 12, and the shield plate 13. It consists of a loop antenna 14 attached to it. In order to connect the battery cell 12 and the loop antenna 14 to a radio frequency board (not shown) of the terminal body, the battery pack 10 is provided on the inner surfaces of the housings 11a and 11b. The power supply terminal 15 and the antenna terminal 16 are provided.

The shield plate 13 is installed between the battery cell 12 and the loop antenna 14 to block electromagnetic interference between the battery cell 12 and the loop antenna 14. The electronic chip embedded in the portable terminal can communicate with the RF reader by the induced electromotive force generated in the loop antenna 14 by the RF reader.

However, the conventional RF ID antenna device is attached to one surface of the battery cell to increase the overall thickness of the battery pack, which has been an obstacle to miniaturization of the terminal. That is, in order to sufficiently secure the capacity of the power charged in the battery, there is a limit in miniaturizing the size of the battery cell. Furthermore, in such a condition, attaching a loop antenna to one surface of the battery cell increases the thickness of the battery pack. It is against the miniaturization.

In order to solve the above problems, an object of the present invention is to provide an RF ID antenna device of a portable terminal, which enables the payment of a service fee using the portable terminal, which is advantageous for miniaturization of the terminal.

In order to achieve the above object, the present invention in the RF ID antenna device of the portable terminal,

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A housing constituting a battery pack of the terminal;

A battery cell attached to an inner side of the housing;

An antenna frame mounted to an inner side of the housing and provided to surround the battery cell; And

Antenna means attached along an outer circumferential surface of the antenna frame;
The antenna frame is made of an insulating material to disclose an RF ID antenna device of a portable terminal to block the electromagnetic interference between the battery cell and the antenna means.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

2 is an exploded perspective view illustrating a portable terminal 200 in which an RFID antenna is installed in the battery pack 203 according to an exemplary embodiment of the present invention. As shown in FIG. 2, the portable terminal 200 is a foldable terminal having a main body 201 and a folder 202 rotatably coupled to the main body 201, and the main body 201 of the main body 201 is provided. The battery pack 203 is mounted on the rear side.

The main body 201 includes a keypad for inputting information such as text and voice on a front surface thereof, a talker (not shown), and the folder 202 has a display device and a sign language unit on a surface facing the main body 201. Not shown) to output text, image, voice information, and the like, and an antenna device 219 is installed on the main body 201 to perform transmission and reception with a mobile communication base station.

On the other hand, the main body 201 is embedded with an electronic chip (not shown) that stores the user's financial information. As an electronic chip embedded in the main body 201, a known SIM card may be used.

In order to mount the battery pack 203, a mounting groove 211 is formed in the rear surface of the main body 201, the power of the battery pack 203 and the main body 201 of the mounting groove 211 A first antenna terminal for electrically connecting the first power supply terminal 213 for electrically connecting the RF board, the electronic chip embedded in the main body 201, and the RF ID antenna device embedded in the battery pack 203 ( 214 is installed. In addition, in order to prevent the battery pack 203 mounted on the seating groove 211 from being separated, a locking lever 212 is installed at one end of the seating groove 211, and the At one end, a locking groove 239 is formed to engage the locking lever 212.

3 is an exploded perspective view illustrating the battery pack 203 shown in FIG. 2. As shown in FIG. 3, the battery pack 203 includes a housing 231a and 231b, a battery cell 232, a frame 233, and an antenna means 234, each of which includes a case 231a and a case cover 231b. ).

Cases 231a of the housings 231a and 231b are opened on one surface, and the locking groove 239 is formed at one end thereof, and the opened surface is sealed by the case cover 231b. The case 231a and the case cover 231b are sealed through a process such as ultrasonic welding.

The battery cell 232 is attached to the inner surface of the case cover 231b to supply power to the terminal body 201 while repeating charging and discharging. In order to supply power of the battery cell 232 to the main body 201, a second power terminal 235 is installed in the case cover 231b. The second power terminal 235 is electrically connected to the battery cell 232 and abuts the first power terminal 213 installed in the seating groove 211 of the main body 201 so that the battery cell 232 is connected to the battery cell 232. Power is supplied to the main body 201.

The frame 233 is mounted in the housings 231a and 231b so as to surround the outer circumferential surface of the battery cell 232, and the antenna means 234 is attached along the outer circumferential surface thereof. That is, the frame 233 and the antenna means 234 may be manufactured in one module form. The height of the frame 233 does not exceed the height of the battery cell 232, thereby preventing the overall thickness of the battery pack 203 from increasing.

The antenna means 234 may use any one antenna selected from a loop antenna or a microstrip antenna wound at least once along the outer circumferential surface of the frame 233.

The frame 233 may be integrally provided on the outer circumferential surface of the battery cell 232. When the frame 233 is integrally provided with the battery cell 232, the antenna means 234 may have the same shape as that attached along the outer circumferential surface of the battery cell 232.

In addition, the frame 233 may be provided close to the inner circumferential surface of the case 231a. When the frame 233 is provided in close proximity to the inner circumferential surface of the case 231a, the distance between the outer circumferential surface of the frame 233 and the inner circumferential surface of the case 231a corresponds to the thickness of the antenna means 234. Therefore, the antenna means 234 may have a shape similar to that interposed between the outer circumferential surface of the frame 233 and the inner circumferential surface of the case 231a.

Since the antenna means 234 is attached to the frame 233 as described above, the frame 233 is made of an insulating material to block the electromagnetic interference between the battery cell 232 and the antenna means 234, etc. This is preferred.

The antenna means 234 is electrically connected to the second antenna terminal 236 provided on the case cover 231b. The second antenna terminal 236 is provided to face the first antenna terminal 214 of the main body 201 and consequently electrically connects the antenna means 234 to an electronic chip embedded in the main body 201. Let's go. Accordingly, the antenna means 234 operates as an RFID antenna of the terminal 200.

4 is a diagram illustrating a configuration of a portable terminal according to an exemplary embodiment of the present invention.                     

In the embodiment of the present invention, the communication mode indicates all operation states that can be performed through an antenna in a general portable terminal such as voice communication and text communication. In addition, in the embodiment of the present invention, the wireless payment mode indicates a state in which the mobile terminal can be used like a credit card or a traffic card. An embodiment of the present invention will be described under the assumption that the antenna 219 shown in FIG. 2 is not provided.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 2 and 3.

Referring to FIG. 2, the portable terminal can receive power by mounting the battery pack 203 in the main body 201 and perform wireless communication and wireless payment through the antenna 234 provided in the battery pack 203. . First, referring to the configuration of the main body 201 of the portable terminal, the RF unit 123 performs a wireless communication function of the portable terminal. The RF unit 123 includes an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal. The RF unit 123 transmits and receives a communication signal using the antenna 234 built in the battery pack 203 according to an embodiment of the present invention, and performs wireless communication through the transmitted and received communication signal. The data processor 120 includes a transmitter for encoding and modulating the transmitted signal and a receiver for demodulating and decoding the received signal. That is, the data processor 123 may be configured of a modem and a codec CODDEC. The codec includes a data codec for processing packet data and an audio codec for processing an audio signal such as voice. The audio processor 125 plays a function of playing a received audio signal output from the audio codec of the data processor 120 or transmitting a transmitted audio signal generated from a microphone to the audio codec of the data processor 120. .

The memory 130 may be composed of program memory and data memories. The program memory performs a wireless communication function through the antennas 234 in the communication mode and the programs for controlling the general operation of the portable terminal, and the antenna 234 in the wireless payment mode. ) Allows you to store programs that control the transmission of information with external readers. The data memory also temporarily stores data generated during the execution of the programs.

The controller 110 controls a general operation of the portable terminal. In addition, the controller 110 may include the data processor 120. In addition, the control unit 110 controls to perform a wireless communication function through the antenna 234 in a communication mode according to an embodiment of the present invention. In addition, the control unit 110 controls to transmit and receive information with an external reader through the antenna 234 in the wireless payment mode according to an embodiment of the present invention.

The display unit 160 displays user data output from the control unit 110 when the mobile terminal is in a communication mode according to an exemplary embodiment of the present invention. In this case, the display unit 160 may use an LCD. In this case, the display unit 160 may include an LCD controller, a memory capable of storing image data, and an LCD display device. In this case, when the LCD is implemented using a touch screen method, the LCD may operate as an input unit. In addition, the display unit 160 controls to display information transmitted and received with the external reader when the mobile terminal is in a wireless payment mode according to an embodiment of the present invention.

The key input unit 127 includes keys for inputting numeric and character information and function keys for setting various functions. In addition, the key input unit 127 may be provided with various keys required during the wireless payment mode switching and performing the wireless payment mode according to an embodiment of the present invention.

The electronic chip 170 has its own microprocessor and memory that can be mounted in the main body 201 or the battery pack 203 of the portable terminal, and stores its own unique identification number and various user information. .

The power input terminal V '+ terminal 213 and the V'-terminal 213 detect the power supplied from the V + terminal 235 and the V- terminal 235, which are the power output terminals of the battery pack 200. After appropriate processing, the control unit 110 outputs the control unit 110.

The C'1 terminal 234 and the C'2 terminal 234, which are antenna input terminals, provide specification information of the battery at the C1 terminal 236 of the battery pack 203 when the portable terminal is in communication mode, and the C2 terminal 236. Receives the battery surface temperature information from the output to the control unit 110. Alternatively, when the mobile terminal is connected to the electronic chip 170 in the wireless payment mode, the electronic chip 170 transmits and receives information received from the C1 terminal 236 and the C2 terminal 236 of the battery pack 200. Or the information of the electronic chip 170 is transmitted to the C1 terminal 236 and the C2 terminal 236.

Looking at the configuration of the battery pack 200, the battery pack 203 is a battery cell 232 for charging and discharging the power to be supplied to the main body of the portable terminal 201, an antenna 234 provided surrounded by the battery cell outer periphery ), Four terminals are provided. The antenna 234 performs a wireless communication function when the portable terminal is in a communication mode, and transmits and receives information with an external reader in a wireless payment mode.

The V + terminal 235 and the V-terminal 235, which are power output terminals, are provided to supply power to the main body 201 of the portable terminal. The C1 terminal 236 and the C2 terminal 236 provide the specification information of the battery and the surface of the battery to the C'1 terminal 234 and the C'2 terminal 234 of the main body 201 of the portable terminal when the portable terminal is in the communication mode. Send temperature information. In addition, the C1 terminal 236 and the C2 terminal 236 is the electron through the C'1 terminal 234 and C'2 terminal 234 provided in the main body of the portable terminal 201 when the portable terminal is in the payment mode; It is connected to the chip 170 and transmits and receives information with the external reader.

Referring to FIG. 4, the operation of the mobile terminal is as follows.

When the portable terminal is in the communication mode, when the user performs a dialing operation through the key input unit 127 and sets a transmission mode, the controller 110 detects this and dials received through the data processor 120. After processing the information is converted into an RF signal through the RF unit 123. The converted RF signal is output through the antenna 234. When the response signal of the other subscriber is generated through the antenna 234, it is detected by the RF unit 123 and the data processor 1200. After that, the user is formed a voice call path through the audio processor 125 In addition, when a call is received through the antenna 234, the controller 110 detects the incoming mode through the data processor 120 and generates a ring signal through the audio processor 125. Thereafter, when the user responds, the control unit 110 detects this, and a voice call path is formed through the audio processing unit 125 to perform a communication function.

In addition, when the portable terminal contacts the external reader or maintains a certain distance, the portable terminal switches to the wireless payment mode. Alternatively, the portable terminal may switch to the wireless payment mode through the input of a key provided in the key input unit 127. When the portable terminal switches to the wireless payment mode, the interface between the electronic chip 170 and the external reader transmits and receives various information through the antenna 234 embedded in the battery pack and the antenna of the external reader.

At this time, the interface unit of the external reader detects the information recorded in the electronic chip 170 and transmits it to the main controller of the external reader. Accordingly, the main controller determines whether the electronic chip 170 is a usable chip. As a result of the determination, if it is determined that the chip is a normal chip, the main controller reads the current charge amount recorded in the electronic chip 170, temporarily stores it in a buffer, and then stores the current charge amount recorded in the electronic chip 170. The new amount is deleted and subtracted by a predetermined amount from the charge amount temporarily stored in the buffer in the electronic chip 170.

In addition, in order to charge a new amount of money in the electronic chip 170, the user selects a predetermined key assigned to charge the amount of money among the various function keys provided in the key input unit 127 of the portable terminal (financial server ( Alternatively, the base station receives information about the new charge amount into the portable terminal, and the controller 110 of the portable terminal detects this and generates a signal corresponding to a predetermined amount. Therefore, as the charge amount information transmitted from the mobile terminal is received by the antenna 234 in the battery pack 203, a new charge amount is written in the electronic chip 170 according to the received charge amount information. In this case, the payment of the new recharge amount may exist in a number of ways that can be set, such as a post-payment method applied to a credit card, and a method of charging the corresponding amount after withdrawing from the balance of the bank specified by the user.

In addition, when the user wants to check the charged amount as needed, the electronic chip 170 selects a predetermined key assigned for checking the amount of money among various function keys provided in the key input unit 127 of the portable terminal. The current charge amount recorded in the is detected and displayed on the display unit 160 of the portable terminal.

In the exemplary embodiment of the present invention, the wireless communication function and the wireless payment function are performed through one antenna 234 embedded in the battery pack 203. However, the antenna 219 and the battery pack 203 of FIG. The antenna 234 built in the) can be used together. While using one of the two antennas as the main antenna, in the region with low reception sensitivity, the remaining antennas may be used as an auxiliary antenna to increase the reception sensitivity. In addition, the antenna 219 of FIG. 2 performs only a wireless communication function, and the antenna 234 built in the battery pack 203 may perform only a wireless payment function.

In the foregoing detailed description of the present invention, specific embodiments have been described. However, it will be apparent to those skilled in the art that various modifications can be made without departing from the scope of the present invention.

As described above, the RF ID antenna device of the portable terminal according to the present invention is installed in a form surrounding the outer circumferential surface of the battery cell attached to the inner surface of the battery pack, so that the overall thickness of the battery pack does not exceed the thickness of the battery cell. Prevented the increase. As a result, this has contributed to the miniaturization of the portable terminal by making it possible to install a service fee payment system using the portable terminal without increasing the thickness of the portable terminal.

Claims (10)

In the RFID terminal device of a portable terminal, A housing constituting a battery pack of the terminal; A battery cell attached to an inner side of the housing; An antenna frame mounted to an inner side of the housing and provided to surround the battery cell; And Antenna means attached along an outer circumferential surface of the antenna frame; The antenna frame is made of an insulating material, RF ID antenna device of the portable terminal, characterized in that to block the electromagnetic interference between the battery cell and the antenna means. According to claim 1, The antenna frame of the RFID terminal of the portable terminal, characterized in that integrally provided on the outer peripheral surface of the battery cell. According to claim 1, The antenna frame is provided in close proximity to the inner circumferential surface of the housing, wherein the antenna means is interposed between the outer circumferential surface of the antenna frame and the inner circumferential surface of the housing of the RFID terminal of the portable terminal. According to claim 1, The housing is composed of a case open one side, and a case cover for closing one side of the case, The battery cell of the RFID terminal of the portable terminal, characterized in that attached to the inner surface of the case cover. The method of claim 4, wherein At least one power supply terminal provided in the case cover and electrically connected to the battery cell; And And at least one antenna terminal mounted on the case cover and electrically connected to the antenna means. According to claim 1, And said antenna means is a loop antenna wound at least once along the outer circumferential surface of said frame. According to claim 1, And the antenna means is a microstrip line antenna attached along the outer circumferential surface of the frame. delete delete delete

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