KR100859445B1 - Non-contact charging battery-pack and mobile divice with non-contact charging battery-pack - Google Patents

Abstract

The present invention relates to a contactless battery pack, and more particularly, wireless data communication is possible while supplying power supplied from the outside using induction electromotive force from a contactless charging device (A) to a rechargeable battery pack of a portable terminal. The present invention provides a contactless battery pack configured to transmit data communication and power supply together, and to provide a good signal transmission without contact failure caused by contact transmission.

Wireless data communication, power transfer, solid state battery pack

Description

NON-CONTACT CHARGING BATTERY-PACK AND MOBILE DIVICE WITH NON-CONTACT CHARGING BATTERY-PACK}

1 is a state diagram used for the charging device for a mobile phone according to the prior art.

2 is a perspective view of a portable terminal mounted on the contactless charging device of the present invention.

3 is a circuit diagram of the contactless charging device of the present invention.

4 is a circuit diagram of a detachable type of a solid-state battery pack according to the present invention.

5 is a circuit diagram of an integrated type of a solid-state battery pack according to the present invention.

6 and 7 are an exploded perspective view according to an embodiment of the present invention a contactless battery pack.

8 is an exploded perspective view of a state in which a shielding member is provided in a contactless battery pack of the present invention.

<Explanation of symbols for the main parts of the drawings>

A: Solid state charger B: Solid state battery pack

C: portable terminal

100: power supply device 120: resonant converter

130: primary side core 170: current detection unit

180 Central processing unit 190: ID signal detecting unit

210: secondary side core portion 211: rectifier circuit portion

212: charging receiver module 213: rechargeable battery cell

214: shielding plate 219: shielding member

221: battery pack control unit 225: charging circuit unit

250: magnetic plate 255: insulating plate

The present invention relates to a contactless battery pack, and more particularly, to supply power supplied from the outside by using induction electromotive force to a rechargeable battery pack of a portable terminal in a contactless charging device, and configured to enable wireless data communication. The present invention provides a contactless battery pack for transmitting data communication and power supply together, and having good signal transmission due to a poor contact caused by contact transmission.

In general, a portable terminal is a device that is convenient for a user to carry and move, such as a mobile phone, PDA, MP3 player.

Such a portable terminal is configured to be used for a predetermined time while mounting a charged battery or charging a battery embedded therein. Therefore, it is configured to charge when needed and receive data from a desktop computer or a notebook to operate the desired function to provide convenience.

According to the Korean Patent Publication No. 10-2001-0026976 (cell phone charging device) shown in FIG. 1, a portable terminal for a mobile terminal for a portable terminal is provided with a power line supplied from the outside on one side of the main body 600, and the main body ( While the bottom of the mobile phone 610 is inserted into the upper mounting space 601 of the 600, the power terminal of the rear bottom of the mobile phone 610 and the inner terminal 602 of the mounting space 601 of the main body 600 is in contact with the mobile phone ( 610 is configured to supply power.

Such a conventional power supply device only supplies power and cannot transmit or process data, so that a state of charge of a mobile phone is not known and thus maintains a state of charge. In addition, since the terminal of the mobile phone and the terminal of the main body are contacted repeatedly a plurality of times, a voltage change occurs between both terminals, resulting in poor electrical contact of the terminal and deterioration of the stability of the device. In particular, where there is a lot of moisture or dust, there is a problem such that there is a possibility that the cell phone and the power supply are broken due to poor electrical contact.

The present invention has been proposed to solve the problems of the prior art, and an object of the present invention is to provide a portable terminal (mobile phone, PDA, by contactless power transmission using a contactless charger and induction electromotive force capable of wireless data communication and power transmission). Simultaneous wireless data communication and wireless charging between MP3 player, DAB or DMB terminal, PMP (Portable Music Player, Handheld terminal, etc.) and a non-contact charging device is possible. It is in the supply box together.

In addition, the contactless charger according to the present invention is a foreign material detection function that can detect and block when a metal foreign material other than the battery pack (pack with a built-in secondary wireless charging module) of the portable terminal to be charged, It has an identification function that can recognize the state of charge by recognizing the battery pack of the portable terminal, and provides an overload and temperature protection function to prevent damage to the device and to maintain an optimal state of charge efficiency.

The contactless battery pack (B) of the present invention for achieving the above object, the power is received from the contactless charging device (A) is internal to the portable terminal to temporarily charge the power and to supply power to the portable terminal (C) In the contactless battery pack (B) to be supplied, induction electromotive force is generated by an induction magnetic field that is inherent in one side of the body of the contactless battery pack (B) and generated in the primary core part of the contactless charging device (A). And a secondary side core unit 210 provided to transmit and receive data signals, a rectifier circuit unit 211 for rectifying AC power of the secondary core unit 210, and connected to the rectifier circuit unit 211. The battery pack control unit 221 controls the power signal to be transmitted to the rechargeable battery cell 213 by transmitting a power signal, and transmits and receives a data signal to the primary side core part and processes the data signal. And a charging circuit unit 225 for transmitting the charging power to the rechargeable battery cell 213 under the control of the unit 221, wherein the charging circuit unit 225 is a power source of the rechargeable battery cell 213. Characterized in that configured to be supplied to the portable terminal (C).

The charging circuit unit 225 supplies the power supplied from the rectifying circuit unit 211 to the portable terminal (C), the charge control circuit 226 controlled by the battery pack control unit 221, and the charge control The power supplied from the circuit 226 is supplied to the rechargeable battery cell 213 through the protection circuit unit 230 and the charging state of the rechargeable battery cell 213 is monitored to generate and record charging state information periodically. A fuel gauge 227 is transmitted to the battery pack control unit 221, and is connected between the charging circuit unit 225 and the rechargeable battery cell 213 to protect whether to charge or discharge according to the state of charge It further includes a circuit unit 230, the battery pack control unit 221 is a battery pack body 201 approaches the contactless charging device (A) when the induced magnetic field is detected when the unique ID for load modulation the secondary side core Through 210 To transmit to the group non-contact charging device (A) can comprise a unique ID 222 for generating a unique ID of the battery pack.

In addition, the body of the contactless battery pack (B) is composed of a separate pack that is formed separately to enable separation and fastening with the portable terminal (C), or is embedded in the body case of the portable terminal (C) integrally The secondary side core part 210 is formed in a spiral shape of a circular, square, or polygonal core, and the body of the contactless battery pack (B) of the separate pack is the battery pack control unit. A terminal block 240 may be further configured to supply power of the rechargeable battery cell 213 to the portable terminal C under the control of 221.

In another embodiment of the present invention, in the portable terminal in which the contactless battery pack is embedded, the body of the contactless battery pack (B) of the integrated pack includes the secondary side core part 210 and the rectifier circuit part 211. ), The battery pack control unit 221, the charging circuit unit 225, the protection circuit unit 230 and the rechargeable battery cell 213, and the charging circuit unit (C) inside the portable terminal (C) 225 is connected to the charging block 310 for supplying power to the circuit of the portable terminal (C) receives the power charged in the rechargeable battery cell 213 and the power supplied from the charging circuit unit 225 DC / DC converter 320 for converting the power to be available to the portable terminal (C) and the terminal block is coupled to the terminal block 240 of the contactless battery pack (B) to transmit and receive signals ( And 330).

The contactless battery pack (B) is the A / S label 431; Upper case 432; A solid state charging PCB board 433 including the rectifying circuit unit 211, the battery pack control unit 221, the charging circuit unit 225, and the protection circuit unit 230. (−) Ni-Plate 434; Bimetal 435; Lead wire 436; (+) Ni-Plate (437); Auxiliary case 438; Nomax tape 439; Connection board 440; The rechargeable battery cell 213; The secondary side core part 210; Lower case 443; And an outer case 444.

In addition, the contactless battery pack (B) is an A / S label 451; Upper case 452; A solid state charging PCB board 453 including the rectifier circuit unit 211, the battery pack control unit 221, the charging circuit unit 225, and the protection circuit unit 23. (−) Ni-Plate 454; Bimetal 455; Lead wire 456; (+) Ni-Plate 457; Auxiliary case 458; Nomax tape 459; Connection board 460; The rechargeable battery cell 213; The secondary side core part 210; Lower case 463; And an outer case 464.

Furthermore, the contactless battery pack (B) surrounds the charging receiver module 212 on which the secondary side core part 210 is wound, the bottom surface of the rechargeable battery cell 213, front, rear, left and right slopes, and includes Al, Cu, or Ni. Shield plates 214, 215, 216, 217 and 218, including the alloy metal, to protect the rechargeable battery cell 213 from a magnetic field, the shield plate 214 on the bottom and the charging receiver. Between the modules 212 are provided ferrite-based, Mn-Zn (50 parts by weight: 50 parts by weight), Ni-Fe (80 parts by weight: 20 parts by weight), or pile metal (Finemetal, Fe-Si-Cu-Nb ) Is configured to include a magnetic plate 250, the shield plate 214 and the rechargeable battery cell 213 between the magnetic plate 250, so that the induction magnetic field is guided well to the secondary side core portion (210) Alternatively, the heat dissipation may be provided as an insulator capable of dropping heat conduction so that the heat of the shielding plate 214 is not conducted to the rechargeable battery cell 213. A soft plate 255, the battery pack control unit 221, the charging circuit unit 225 and the protection circuit unit 230 of the wireless power receiving circuit unit 223 of the battery pack, and includes Al, Cu, or Ni Alloy metal And a shielding member 219 for shielding a magnetic field in the wireless power receiving circuit unit, and the magnetic plate 250 includes an upper magnetic plate 251 between the shielding plate 214 and the charging receiver module 212. ) And a lower magnetic plate 252 positioned below the charging receiver module 212, and the lower magnetic plate 252 has a lower plate through-hole 253 which is a through-hole penetrating up and down in the center thereof. Can be configured.

Hereinafter, with reference to the accompanying drawings will be described in detail.

2 is a perspective view of a portable terminal mounted on a contactless charging device of the present invention, Figure 3 is a circuit diagram for a contactless charging device of the present invention, a contactless charging device (A), a contactless battery pack (B) and It shows a data transmission and a contactless power transmission system between the portable terminal (C). 4 is a circuit diagram of a detachable type of a contactless battery pack of the present invention, FIG. 5 is a circuit diagram of an integrated type of a contactless battery pack of the present invention, and FIGS. 6 and 7 are embodiments of the contactless battery pack of the present invention. Figure 8 is an exploded perspective view, respectively, Figure 8 is an exploded perspective view of a state in which a shielding member is provided in a contactless battery pack of the present invention, a contactless battery pack formed integrally with the portable terminal (C) or formed in a separated form ( Each of B) is illustrated.

That is, the present invention, the contactless charging device system is provided as one side, as shown in Figure 1 to 8, the USB input port (USB Connector) 106, the external connection is possible to connect and disconnect the jack and USB port of a computer or laptop, An input power converter 111 connected to an AC input terminal 105 and a jack jack input terminal 107 supplied with AC power from the outside, and receiving power from the outside, and supplied from the input power conversion unit 111. The contactless charger (A) such as the gate driver 160, the central processing unit 180, and the ion generating unit 182 by accumulating the input power under the control of the central processing unit 180 and adjusting the magnitude of the output voltage and the current. A power supply provided with a voltage regulating circuit 113 for applying an input voltage to each component of the circuit and applying a driving voltage to a half-wave or full-wave serial / parallel resonator converter (LLC) 120, respectively. Supply device 100 on one side It will soundness.

In other words, it is supplied with external power supply to a solid-state battery pack (B), or a series / parallel resonator converter (LLC) 120 for transmitting and receiving data, current sensing block (Current sensing block, 170) and a data processor and a power signal from the central processing unit (Micro Processor Unit Block, MPU Block, 180) and the resonant converter 120 to control the power supply member and the like wireless to the contactless battery pack (B) It consists of a primary side core portion 130 and the like formed to generate an induction magnetic field for transmitting to.

The serial / parallel resonator converter (LLC) 120 is configured to convert and sum data signals and power signals transmitted and received by the contactless battery pack B. The current detection unit 170 detects a load regulation signal by the secondary core unit 210 on the contactless battery pack B side corresponding to the primary core unit 130. By detecting and analyzing a signal from the core unit 130, the primary side core unit 130 and the secondary side core unit 210 are monitored to recognize the contactless battery pack B and control the charging voltage to a stable voltage. And it is configured to transmit a signal to the central processing unit 180. Accordingly, the current detector 170 detects a signal between both ends of the resistor R (sense) interposed between the voltage adjusting circuit 113 and the resonant converter 120 and the signal amplifier. The comparator 172 performs comparative analysis according to the signal of 171.

The primary side core unit 130 is composed of a FPCB, a PCB, a coil, a ferrite core, and the like of a separate transformer, and the resonant converter 120 for this is a general transformer resonant converter. In particular, it is preferable to configure a LLC full-bridge serial resonator converter (LLC full-bridge serial / parallel resonator converter), which is a half-wave or full-wave, in a series / parallel resonant converter.

In addition, a FET Gate Drive having a bootstrap gate driver between the voltage adjusting circuit unit 113, the central processing unit 180, and the resonant converter 120 of the power supply device 100. Block 160 is provided. In addition, the signal is received from the primary core unit 130, which detects a battery charge state signal among the secondary core unit 210 signals, to charge the contactless battery pack B under the control of the central processing unit 180. It further comprises an LCD 185 which is a display unit for displaying the status.

Furthermore, by sensing the temperature inside the contactless charging device (A) and measuring the temperature of the primary side core unit 130 to the central processing unit 180 to block the circuit depending on whether the measured temperature is overheated or high temperature. A bimetal that is connected in series with the temperature protection circuit unit 183 for transmitting a signal and the primary side core unit 130 to block the current when the current flowing in the primary side core unit 130 is excessive or the internal temperature is overheated ( Bimetal) may be provided.

The ion generating unit 182 may further include an ion generating unit generating anion and spraying an antimicrobial spray for bacterial eradication by a dust smell sensor for detecting dust and odor inside the contactless filling device (A). In addition, the temperature protection circuit unit 183, the bimetal, the dust odor sensor, and the ion generator 182 having the temperature sensor for preventing overheating are connected to the contactless charging device A and the contactless battery pack B operates. And the portable terminal C, etc., are preferably provided in an appropriate configuration.

Looking at the configuration and operation of the present invention contactless charging device (A) provided as follows. That is, the present invention uses a core-to-core communication method, and the contactless charging device (A), a contactless battery pack (B) or a portable battery pack (B) is built-in The terminal C is configured to transmit not only data communication but also charging power together.

In addition, the contactless charging device (A) detects whether the contactless battery pack (B) is connected by sending a pulse signal to the primary core unit 130 at a predetermined interval. Thus, wireless data communication and charging power is supplied between the primary side core portion 130 of the contactless charging device A and the secondary side core portion 210 of the contactless battery pack B. The configuration of the contactless charging device (A), the contactless battery pack (B) and the portable terminal (C) is an improvement of the prior art filed by the applicant of the present invention.

The contactless charging device (A) through the resonant converter 120, the primary side core portion 130 and the secondary side core portion 210 by the control of the central processing unit 180 of the contactless charging device (A) In response to the pulse signal of the contactless battery pack (B) generates a unique ID to be transmitted back to the contactless charging device (A). That is, the unique ID signal transmitted from the unique ID unit 222 including the ID chip in which the secondary wireless charging module of the battery pack control unit 221 of the contactless battery pack B is transmitted through the secondary side core unit 210. In this case, the primary side core unit 130, the ID signal detection unit 190, and the current detection unit 170 recognize the unique ID of the contactless battery pack B through the load regulation signal of the supplied power signal. Done.

Thus, when the contactless battery pack (B) is placed on the contactless charging device (A), the ID chip embedded in the contactless battery pack (B) operates to perform load regulation in a no-load state to charge the charging start ID. The contactless charging device (A) receives the signal and checks whether the ID matches to the correct signal, and supplies the power to the contactless battery pack (B) in the full power mode if it matches. .

When the unique ID of the contactless battery pack B is recognized, constant voltage control is always performed on the secondary rectifier voltage of the contactless battery pack B through the primary core 130 and the secondary core 210. do. This controls the secondary charging power of the contactless battery pack B through the primary frequency automatic variable algorithm of the contactless charging device A. In view of the control of the charging power, the primary side of the contactless charging device A The core unit 130, the ID signal detection unit 190, and the current detection unit 170 are provided to minimize the secondary side power consumption [Pdis = (Vrec-Vbat) * Ichg] due to Vdrop (= Vrec-Vbat). Accordingly, Vrec is an output voltage of the secondary rectifier circuit 211 serving as a secondary input voltage (shown in the upper right side of FIG. 3), and Vbat is a secondary side rechargeable battery pack 213 serving as a secondary final charging consumption voltage. Is the voltage of the difference between the charge consumption voltage (ie Vbat) relative to the input voltage (ie Vrec) on the secondary side, and Ichg is applied to the secondary side. Current, and Pdis is the power consumed for charging on the secondary side. Such information is to be controlled by transmitting a signal from the secondary battery pack to the primary side contactless charging device (A). Therefore, it is possible to reduce the absence of a separate secondary charging module in the contactless battery pack (B), and to suppress the temperature rise of other charging chips, thereby eliminating the use of complicated and expensive switching charging ICs. It can be used, and also to secure the internal space of the battery pack.

Next, it can be seen that when a heterogeneous metal body not having a charging module is placed on the contactless charging device (A), the heterogeneous metal body is overheated due to the loss of eddy current due to unwanted induction electromotive force. There is a fear that a phenomenon in which the contactless charging device A is damaged may occur. This phenomenon is a problem that most affects the stability of the contactless charging device (A) using the induced electromotive force. Therefore, it must be equipped with a safety device that recognizes foreign substances, such as coins, metal pens, scissors, and other metal objects, such as metals in the life, which are not provided with a charging module, and cuts off power to be safe from the risk of overheating.

Looking at the configuration for this, the means for transmitting power from the primary side core portion 130 to the secondary side core portion 210 is made of a sinusoidal wave by LC resonance using a half-wave or full-wave series / parallel resonant converter Inductive coupling is to transfer power to the secondary side. At this time, the switching frequency is set higher than the resonant frequency to allow soft switching. Prior to such power transmission, PWM pulses are applied for a very short time at a predetermined interval in the primary core unit 130 to configure a mechanism for detecting and determining whether heterogeneous foreign materials are raised. The switching frequency and the phase of the current are always 90 degrees at no load before power transmission. When the foreign matter is close, the phase of the current is changed by the change of the magnetic inductance, and the degree of the foreign matter is changed according to the level of this phase difference. To be recognized. That is, when the proximity of the object is detected, an ID check signal is transmitted for a predetermined time to apply power, and when the fed back unique ID signal is not detected or when a different ID is recognized as a deformed form, it is recognized as a foreign substance and is connected to a non-discharge device ( Shut down the charging system of A) to prevent the charging power from being supplied to the primary side core part 130, thereby ensuring the stability of the charging circuit of the contactless charging device (A) and the contactless battery pack (B). .

That is, in the current detecting unit 170 of the contactless charging device A, the primary side core unit 130 generates a predetermined interval of PWM pulses and responds to the detection signal from the secondary side core unit 210. If is a prescribed signal, the ID is assigned to continue transmitting the data signal and power signal.If there is no response or if the response signal is detected as not the prescribed signal, it detects it as a foreign object and stops the transmission of the data signal and power signal. It is configured to include more.

In addition, the foreign material detection during the charge by the foreign matter detection function requires a complex technology, the power can be provided so that the power gradually decreases. When a foreign material is raised by putting hysteresis on this power curve, an algorithm that recognizes as a foreign material and shuts down when the hysteresis section is crossed may be implemented.

The present invention can provide a wireless charging solution having a safety and battery condition monitoring function of a contactless battery pack (B) in which the safety device of the contactless charging device (A) and a wireless charging module are incorporated.

In addition, the contactless charging device A basically detects the temperature of various chips configured with the primary core 130 by the temperature protection circuit unit 183 or monitors the internal temperature, so that the constant temperature is always 45 ° C. or more. In this case, shut-down function, protection against overcurrent and overvoltage are built into the chip, and fuse is built in to cut off the overcurrent. When the function of the component chip of the contactless charging device A is paralyzed and an abnormal signal is detected, the circuit is cut off, and a bimetal is connected in series to the resonant converter 120 connected to the primary core 130. The safety device can be configured such that the circuit can be cut off when the primary side core part 130 is overheated.

In addition, the antibacterial spray for anion generating function or bacteria eradication is injected, and the state of being filled with the LCD 185 is displayed. In addition, when the contactless battery pack B is fully charged, the full charge signal output from the charging IC of the charging circuit unit 225 is loaded into the contactless charging device A under the control of the battery pack controller 221. It transmits through regulation, and receives this signal and displays the contact point of the contactless battery pack B in the LCD 185 or the like.

An example of a manufacturing configuration of the contactless battery pack B according to the present invention will be described with reference to FIGS. 4 to 8. That is, FIG. 4 is a contactless battery pack B of an all-in-one hard pack, and FIG. 5 is a circuit diagram of a contactless battery pack B built in the portable terminal C. Referring to FIG.

That is, the solid-state battery pack B of the all-in-one hard pack is composed of a secondary side core unit 210, a magnetic shielding shield, a rectifying circuit, a charging circuit (switching or linear charging circuit), a wireless communication ID recognition circuit, a protection circuit, and a battery. do. That is, the secondary side core part (including coil or core method) 210, rectification circuit part 211, LDO + ID (TX, RX communication) + FET drive + battery charge status input (Empty, Full signal) function + Battery pack control unit 221, which is an adapter control block with an embedded port for enabling or disabling an oscillator + charging circuit, a protection circuit unit (PCM) 230 of a battery pack, a PTC and a rechargeable battery cell 213 ), The charging circuit unit 225, the terminal block 240, which is a terminal connected to the portable terminal (C) and the like.

In the case of the contactless battery pack (B), the secondary core unit 210 and the magnetic shielding shield are built in the case (using a method of injection molding the core to the cover or ultrasonic welding to form a protective case), and the portable terminal (C). Terminal block 240 is a terminal that can be connected to).

Accordingly, when the contactless battery pack B is configured inside the portable terminal C, the secondary terminal core 210, the magnetic shielding shield, the rectifier circuit, the wireless communication ID recognition circuit, the protection circuit, the battery, and the like, may be connected to the portable terminal ( C) Built-in inside without fusion to the case cover, and make the connection terminal such as rectifier circuit output, ground, battery positive pole, charging status pin, built-in DC / DC converter 320 and the charging block (C) 310 may be used as it is to be charged through a terminal connected to the battery.

As shown in FIG. 5, the circuit for the built-in contactless battery pack B is a semi-inner pack for contactless charging applicable to the portable terminal C, and includes a secondary side core part (including a coil or a core method) ( 210), rectification block (211), LDO + ID (TX, RX communication) + FET drive + battery charge status input (Empty, Full signal) function + oscillator + port to enable or disable charging circuit Built in the battery pack control unit 221 which is a built-in adapter control block, the protection circuit unit (PCM) 230 of a battery pack, a PTC and a rechargeable battery 213, and a portable terminal (C) which is a GSM mobile phone. It may be configured to include a DC / DC converter 320, and a charging block 310 built in the portable terminal (C) that is a GSM mobile phone. In this case, the portable terminal C, which is a GSM mobile phone, refers to a portable terminal (eg, GSM mobile phone) in which a DC / DC converter 320 and a charging block 310 are built in the terminal.

The mobile terminal (C), which is a GSM mobile phone with a semi-inner pack for contactless charging, that is, a contactless battery pack (B), is placed on the contactless charging device (A) to generate power in the contactless charging device (A). The power is transmitted to the contactless battery pack B and the portable terminal C through the secondary side core unit 210.

Thus, on the secondary side, which is a contactless battery pack (B), AC power is received from the secondary side core unit 210 and rectified by the rectifying circuit unit 211 to make DC, and the voltage is increased through the RXD pin at the battery pack control unit 221. If the voltage is higher than the stable voltage (eg, 5.5V or higher), power save code for reducing power is transmitted to the contactless charging device (A) through the TXD pin, so that the secondary power is stable voltage (for example, about 5V). To adjust the parameter (frequency). Repeating this case, if the secondary side of the contactless battery pack (B) becomes a stable voltage (for example, 5V) that is an optimal voltage condition, an ID for this is generated, and if it matches the ID of the contactless charging device (A), The contactless charging device (A) generates power. Otherwise, the contactless charging device (A) cuts off the power supply and enters a power saving mode or when there is a foreign object, there is no reception information for the unique ID, thereby generating an error to cut off the power supply.

6 and 7 illustrate an exploded perspective view of the contactless battery pack B according to various embodiments.

First, referring to the configuration of FIG. 6 showing an embodiment of assembling the contactless battery pack B, the A / S label 431, the upper case ( Top case (432), contactless PCB board (433), (-) Ni-Plate (434), PTC or bimetal (435), lead wire (436), (+) Ni-Plate (437), auxiliary Case (can be filled by hot melt method) 438, Nomax tape 439, connecting board 440, battery cell 213, the secondary side core portion 210, bottom case (443) , And an outer case 444.

And Figure 7 is a built-in battery pack assembly diagram (circuit board side arrangement) for contactless charging according to another assembly embodiment, A / S label 451, the top case (452), a contactless charging PCB Board 453, (-) Ni-Plate (454), PTC or Bimetal 455, Lead Wire 456, (+) Ni-Plate (457), Auxiliary Case (can be filled by hot melt method) ( 458, a Nomax tape 459, a connection board 460, a battery cell 213, a secondary side core part 210, a bottom case 463, and an outer case 464.

The contactless battery pack B provided as described above has a shielding member that blocks a magnetic field having a schematic structure as shown in FIG. 8. Such a shielding member prevents malfunction of the battery cell and charging circuits and prevents overheating. That is, the battery cell 213 of FIGS. 6 and 7 may be configured as the configuration of the battery cell 213 provided with the shielding member schematically illustrated in FIG. 8.

That is, Figure 8 is an exploded perspective view according to the configuration of a contactless battery pack (B) having a wireless power receiving module, a battery pack made of coil, fine metal, thin film aluminum (foil, etc.), lithium-ion or lithium polymer has a magnetic field 100 In order to block%, the thin-film aluminum is added so that the cell is not affected so that the cycle of the cell can be charged and discharged more than 500 times. Here the shape of the core includes all types of cores. That is, it can be provided in various shapes, such as a core coil, a spiral core, etc. in rectangular shape, circular shape, or ellipse shape. Thus, the contactless battery pack B having the wireless power receiving module includes a battery pack control unit 221 and a charging circuit unit 225 on one side of the rechargeable battery cell 213 (Wireless Power Receiver). And a shielding member 219 that surrounds the wireless power receiver circuit 223 to block a magnetic field.

In addition, the charging battery cell 213 is provided in the bottom, front, rear, left, and right directions, and shields the magnetic fields of the primary side core part 130 and the secondary side core part 210 to charge the battery cell 213. Shielding plates 214, 215, 216, 217, and 218 are provided to protect the N from magnetic fields.

Thus, the shielding plates 214, 215, 216, 217, and 218 are respectively provided in five directions, that is, the front, rear, right, and bottom directions of the rechargeable battery cell 213, and the primary side core part 130 and the second, respectively. The magnetic field generated by the vehicle side core part 210 is completely blocked to prevent the rechargeable battery cell 213 from being damaged from the magnetic field. In addition, if necessary, the upper surface of the rechargeable battery cell 213 may also be provided with a separate shielding plate. In this case, it is irrelevant to prevent the temperature rise due to the enclosed surroundings of the rechargeable battery cell 213.

The shielding plates 214, 215, 216, 217, 218 and the shielding member 219 may be formed of a thin plate body including Al, Cu, and Ni alloy metal.

In addition, a magnetic plate 250 is provided between the lower shield plate 214 of the rechargeable battery cell 213 and the charging receiver module 212 so that a magnetic field induced in the secondary side core 210 is well induced. The magnetic plate 250 is an amorphous ferrite series, Mn-Zn (50 parts by weight: 50 parts by weight), Ni-Fe (80 parts by weight: 20 parts by weight), or fine metal (Fe-metal) (Fe − Si-Cu-Nb) etc. are comprised.

The magnetic plate 250 is an upper magnetic plate 251 between the shielding plate 214 and the charging receiver module 212 and a lower magnetic plate 252 located below the charging receiver module 212. Can be configured. Accordingly, the lower magnetic plate 252 has a lower plate hole 253 which is a through hole penetrating up and down in particular to the center side. The shape of the lower plate hole 253 is preferably formed in the same shape as the core shape of the secondary side core portion 210. 8 illustrates that the secondary side core part 210 is formed of a circular core, and the lower plate hole 253 of the lower magnetic plate 250 is formed in a circular shape. However, if the core is formed in a quadrangular shape or polygonal shape, it is preferable that the lower plate hole 253 is also formed in the same shape. Thus, the induction electromotive force is generated well in the secondary side core part 210 in the induction magnetic field by the lower plate hole 253, and the signal transmission and reception is configured.

In addition, an insulating plate 255 is provided between the lower shield plate 214 of the rechargeable battery cell 213 and the rechargeable battery cell 213 to insulate the rechargeable battery cell 213. The insulating plate 255 is formed in the form of a mesh or a thin film made of Ni-Cu so that heat of the shielding plate 214 is not conducted to the rechargeable battery cell 213.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art various modifications of the present invention without departing from the spirit and scope of the invention described in the claims below Or it may be modified.

The present invention configured as described above is a portable terminal (mobile phone, PDA, MP3 player, DAB or DMB terminal, PMP (Portable Music Player) by wireless data communication and a contactless charger capable of transmitting power and contactless power transmission using induction electromotive force. ), Handheld terminal, etc.) and the contactless charging device can simultaneously perform wireless data communication and wireless charging, and there is an effect that it is possible to supply power together while transmitting and receiving data stably without error in transmission.

In addition, the contactless charger according to the present invention has a foreign material detection function that can detect and block when a metal foreign material other than the battery pack (pack with a built-in secondary side wireless charging module) of the portable terminal to be charged, it is blocked, It has an identification function for recognizing a battery pack of a portable terminal to recognize a charging state, and provides an overload and temperature protection function to prevent damage to the device and maintain an optimal charging efficiency state.

Claims (8)

In the contactless battery pack (B) that receives power from the contactless charging device (A) and is embedded in the portable terminal to charge power and supply power to the portable terminal (C), 2, which is intrinsic to one side of the body of the contactless battery pack (B) is provided so as to generate induced electromotive force by the induced magnetic field generated in the primary core of the contactless charging device (A), and is provided to transmit and receive data signals Car core part 210, Rectifier circuit 211 for rectifying the AC power of the secondary side core portion 210, A battery pack which processes the power signal connected to the rectifying circuit unit 211 and transmits the charging power to the rechargeable battery cell 213, transmits and receives a data signal to the primary side core part and processes the data signal. Controller 221, And a charging circuit unit 225 for transmitting charging power to the charging battery cell 213 under the control of the battery pack control unit 221, The charging circuit unit 225 is a contactless rechargeable battery pack, characterized in that configured to supply the power of the rechargeable battery cell (213) to the portable terminal (C). The method of claim 1, The charging circuit unit 225 supplies the power supplied from the rectifying circuit unit 211 to the portable terminal (C), the charging control circuit 226 is controlled by the battery pack control unit 221,  And supplying the power supplied from the charge control circuit 226 to the rechargeable battery cell 213 through the protection circuit unit 230 and monitoring the charging state of the rechargeable battery cell 213 to generate charging state information. Fuel gauge 227 to periodically record and transmit to the battery pack control unit 221, It is further provided with a protection circuit unit 230 is connected between the charging circuit unit 225 and the rechargeable battery cell 213 to control whether the charge or discharge according to the state of charge, The battery pack controller 221 charges the contactless through the secondary side core 210 a unique ID for load modulation when the battery pack body 201 approaches the contactless charging device (A) and detects an induced magnetic field. A contactless rechargeable battery pack, characterized in that it comprises a unique ID unit 222 for generating a unique ID of the battery pack to transmit to the device (A) The method of claim 2, The body of the contactless battery pack (B), Consists of a separate pack that is formed separately to enable separation and fastening with the portable terminal (C), or consists of an integrated pack that is integrally formed inside the main body case of the portable terminal (C), The secondary side core part 210 is a contactless rechargeable battery pack, characterized in that formed in a spiral shape of a circular core, square or polygon. The method of claim 3, wherein The body of the contactless battery pack (B) of the separate pack, Contactless rechargeable battery, characterized in that further configured to the terminal block 240 for supplying the power of the rechargeable battery cell 213 to the portable terminal (C) under the control of the battery pack control unit 221. pack. In the portable terminal provided with a contactless battery pack (B) of claim 3, The body of the contactless battery pack B of the integrated pack includes the secondary side core part 210, the rectifier circuit part 211, the battery pack control part 221, the charging circuit part 225, and the protection circuit part 230. ) And the rechargeable battery cell 213, A charging block 310 connected to the charging circuit unit 225 inside the portable terminal C to receive power charged in the rechargeable battery cell 213 to supply power to a circuit of the portable terminal C; In addition, a DC / DC converter 320 for converting power to use the power supplied from the charging circuit unit 225 for the portable terminal C and the jack block and the terminal block 240 of the contactless battery pack (B) And a terminal block (330) provided to transmit and receive a signal. The method according to any one of claims 2 to 4, The contactless battery pack (B), A / S label 431; Upper case 432; A solid state charging PCB board 433 including the rectifying circuit unit 211, the battery pack control unit 221, the charging circuit unit 225, and the protection circuit unit 230. (−) Ni-Plate 434; Bimetal 435; Lead wire 436; (+) Ni-Plate (437); Auxiliary case 438; Nomax tape 439; Connection board 440; The rechargeable battery cell 213; The secondary side core part 210; Lower case 443; And an outer case 444, wherein the contactless rechargeable battery pack is configured. The method according to any one of claims 2 to 4, The contactless battery pack (B), A / S label 451; Upper case 452; A solid state charging PCB board 453 including the rectifier circuit unit 211, the battery pack control unit 221, the charging circuit unit 225, and the protection circuit unit 23. (−) Ni-Plate 454; Bimetal 455; Lead wire 456; (+) Ni-Plate 457; Auxiliary case 458; Nomax tape 459; Connection board 460; The rechargeable battery cell 213; The secondary side core part 210; Lower case 463; And an external case 464, wherein the contactless rechargeable battery pack is configured. The method according to any one of claims 1 to 4, The contactless battery pack (B), Charging receiver module 212, the secondary side core portion 210 is wound, Shield plates 214 and 215 that surround the bottom, front, rear, left and right slopes of the rechargeable battery cell 213 and include Al, Cu, or Ni Alloy metal to protect the rechargeable battery cell 213 from a magnetic field. (216) (217) (218), A ferrite-based, Mn-Zn (50 parts by weight: 50 parts by weight), Ni-Fe (80 parts by weight: 20 parts by weight) provided between the bottom shielding plate 214 and the charging receiver module 212, or Magnetic plate 250 including a pile metal (Finemetal, Fe-Si-Cu-Nb) to induce an induction magnetic field well in the secondary side core portion 210 Between the shield plate 214 and the rechargeable battery cell 213 is provided with a mesh made of NI-Cu or an insulator that can dissipate heat and reduce heat conduction, so that the heat of the shield plate 214 is used for the charge. Insulation plate 255 to prevent the battery cell 213 from conducting, The battery pack control unit 221, the charging circuit unit 225 and the protection circuit unit 230 is wrapped around the wireless power receiving circuit unit 223 of the battery pack is configured to include Al, Cu, or Ni Alloy metal and the wireless power It includes a shielding member 219 for shielding a magnetic field in the receiving circuit portion, The magnetic plate 250 includes an upper magnetic plate 251 between the shielding plate 214 and the charging receiver module 212 and a lower magnetic plate 252 positioned below the charging receiver module 212. Are equipped, The lower magnetic plate 252 is a contactless rechargeable battery pack, characterized in that the lower plate through-hole 253 is formed in the center penetrating up and down.

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