KR200194777Y1 - A self-recharging type handfree kit using a solar cell - Google Patents

Abstract

An object of the present invention is to provide a self-charging wireless hand-free kit using a solar cell to recharge the rechargeable battery built in the receiver, the transmitter and the mobile phone using the charging current supplied from the solar cell.

The receiver according to the present invention includes a solar cell generating a charging current and a charging circuit unit for selectively supplying the charging current supplied from the solar cell to any one of the receiver, the transmitter and the mobile phone terminal according to the charging mode. A transmission battery for supplying power, a power supply unit for supplying predetermined power supplied from the transmission battery to each unit, and a charging terminal for supplying a charging current supplied from the charging circuit unit to the transmission battery; It is characterized by.

Therefore, the present invention has a useful effect of self-charging using solar cells even in places where electricity cannot be supplied outdoors or outdoors.

Description

A self-recharging type handfree kit using a solar cell}

The present invention relates to a self-charging wireless hand-free kit using a solar cell, and more particularly, to a self-charging wireless hand-free kit using a solar cell to enable self-charging of a receiver, a transmitter, and a mobile phone terminal using a solar cell.

1 illustrates a configuration of a general mobile phone, including a receiver 1 for receiving a signal transmitted from a base station through an antenna ANT1, a microphone 2 for converting a user's call voice into an electrical signal, and A transmitter 3 for transmitting a voice signal through the microphone 2 through the antenna ANT1, a speaker 4 for outputting the voice signal received by the receiver 1 as sound, and a receiver 1 A ring signal detection unit 5 for detecting a ring signal among the signals received by the power supply unit, a power supply unit 6 for supplying power to each component of the mobile phone, and a switching operation according to a user's operation to output the voltage of the power supply unit 6 A power switch (7) for supplying components to each component, an external connection port (8) for electrically connecting with other devices such as a handfree, a key panel (9) for inputting various functions of a mobile phone, and the key According to the key input of the panel 9, each sphere of the mobile phone Consists of a control device 10 for controlling the component to operate, and a connecting jack 11 for connecting the microphone.

Such a mobile phone is converted into an electrical signal through a microphone (2), the user speaks and is transmitted to the other party through the transmitter 3, the voice signal received from the other party through the receiver (1) As the speaker is output, the user can talk to the other party without being restricted by the location.

However, when the driver wants to talk on the mobile phone while driving, it is necessary to hold the mobile phone with one hand so that it can cause a car crash. use. That is, the mobile terminal is mounted on a cradle installed in the middle of the right side of the driver's seat, and the curl cord connected to the handfree set is inserted into the contact terminal under the mobile terminal. This will be described with reference to FIG. 2.

The hand-free system is used by being plugged into a sun shade in front of a driver's seat and used to convert a voice signal into an electrical signal, a microphone amplifier 21 for amplifying the electrical signal, and the microphone amplifier 21. A comparator 22 for comparing the amplified electrical signal and the electrical signal received from the terminal 28 through a wired curl code (not shown) with a reference voltage, and if the electrical signal is higher than the reference voltage, a contact is formed and is lower. An analog switch 23 having a low contact point, a preamplifier 24 for primary amplifying the electrical signal passing through the analog switch 23, a main amplifier 25 for amplifying the secondary, and an amplified electric signal It is composed of a speaker 26 for switching to an audible sound to be heard by the ear. Reference numeral 27 is a power supply for supplying power to the hand-free system.

However, in the hand-free system according to the related art, since power is supplied to each component of the hand-free system by using the battery power of the vehicle, the hand-free system must be operated while the vehicle is running or the start switch is turned on. For this reason, when the car is inadvertently moved out of the vehicle with the ignition key inserted, the vehicle battery is discharged or the door is locked.

In addition, there is a problem that the hand free system can not be used when the battery power of the vehicle, such as outdoors or outdoors.

The present invention is to solve the above problems, an object of the present invention is to use a solar cell to recharge the rechargeable battery built in the receiver, the transmitter and the mobile phone using the charging current supplied from the solar cell. The present invention provides a self-charging wireless handfree kit.

1 is a block diagram schematically showing the configuration of a typical mobile phone;

2 is a block diagram of a conventional hand-free system,

3 is a block diagram showing a transmitter of a wireless hand prekit according to an embodiment of the present invention;

4 is a block diagram illustrating a receiver of a wireless hand prekit according to an embodiment of the present invention;

5 is a block diagram illustrating a transmitter of a wireless hand prekit according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

100: mobile phone terminal 200: transmitter

210: CPU 220: microphone

230: OP amplifier 240: RF controller

250: RF transmitter 260: power supply

300: receiver 310: RF receiver

320: switch 330: comparison unit

340: amplifier 350: reference voltage generator

360: Speaker 370: Power Supply

380: solar cell 390: charging circuit

Self-charging wireless hand-free kit using a solar cell according to the present invention as described above is a mobile terminal for performing wireless communication with the base station, a transmitter connected to the connection port of the mobile terminal and processes the voice of the user and the other party, and A wireless hand free kit comprising a receiver for voicely outputting a voice of a counterpart party transmitted wirelessly from the transmitter, wherein the receiver comprises a solar cell generating a charging current and a charging current supplied from the solar cell according to a corresponding charging mode. And a charging circuit unit for selectively supplying any one of a transmitting unit and a mobile phone terminal, wherein the transmitting unit includes a transmitting battery for supplying power, a power supply unit supplying predetermined power supplied from the transmitting battery to each unit, and Charge current supplied from the charging circuit unit And a charging terminal for supplying the battery for transmission.

The charging circuit unit is provided with an operation switch for selecting any one of the receiver, the transmitter, and the mobile phone terminal, the charging mode selection unit for setting the charging path according to the operation state of the operation switch, the charging mode selection unit in the mobile phone A first constant voltage unit configured to limit the charging current supplied from the solar cell within a predetermined first constant voltage when the charging path is set to the terminal and to output the charging current supplied from the solar cell when the charging path is set from the charging mode selector to the transmitter; A second constant voltage unit for restricting the output to within a second constant voltage lower than the first constant voltage, and an input terminal is commonly connected to the first and second constant voltage units, and a charging terminal for supplying a charging current through an output terminal on the other side. It is characterized by.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention will be described in detail.

As an embodiment of the present invention, as shown in FIG. 3, when the connection port (not shown) of the transmitter 200 is coupled to an external connection port (not shown) provided at a lower portion of the mobile phone terminal 100. In addition, the CPU 210 provided in the transmitter 200 generates a predetermined control signal to display a character 'hand free' on the LCD screen of the mobile phone terminal 100 and automatically operate the wireless hand free kit. Let's do it.

At this time, when a call is received from the outside, the ring signal detector (not shown) of the mobile phone detects the ring signal and transmits the ring signal to the CPU 210 of the transmitter 200, and the CPU 210 transmits the RF signal through the RF controller 240. Supplying power to the transmitter 250, the voice of the user (driver, passenger) is converted into an electrical signal by the microphone 220 and amplified through the OP amplifier 230 and then the other party through the antenna of the mobile terminal 100 Is sent to. In addition, the power supply device 260 that supplies power to the CPU 210, the RF controller 240, the microphone 220, and the OP amplifier 230 is not connected to an external power source (for example, a vehicle battery power source). And a battery 263 for outputting predetermined charging power, and a power supply section 261 for supplying predetermined power supplied from the battery 263 to each unit. The battery 262 may be recharged when the charging current is applied from the charging terminal A 263.

In addition, the voice of the other party caller is transmitted to the RF transmitter 250 of the transmitter 100 through the mobile phone terminal 100, the RF transmitter 250 in the RF controller 240 in accordance with the control operation of the CPU (210) When the power is supplied to the receiver 300 through the antenna ANT2.

Meanwhile, the receiver 300 receives an RF signal received from the antenna ANT2 of the transmitter 200 through the antenna ANT3 and receives the RF signal received from the RF receiver 310. A switch 320 for transmitting to the amplifier 340, and an amplifier 340 for amplifying the received signal received from the switch 320 to a suitable level. The comparator 330 is connected to an output terminal of the RF receiver 310. The comparison unit 330 compares the received signal received from the RF receiver 310 with the reference signal received from the reference voltage generator 350 to prevent a malfunction due to external noise and the received signal is larger than the reference signal. Only when a predetermined control signal is output to switch the switch 320 to the on state.

The receiver 300 charges a solar cell 380 and a charging current supplied from the solar cell 380 that generate a charging current having a predetermined voltage by photoelectric conversion of a plurality of cells exposed to the outside. A charging circuit unit 390 for supplying the mode is provided.

Then, the receiver 300 is a power supply consisting of a battery 372 for receiving a charging current from the charging circuit unit 390 to recharge and a power supply 371 for supplying predetermined power supplied from the battery 372 to each unit Apparatus 370 is provided.

The charging mode selector 391 is configured to receive a charging current of the solar cell 380 when the user charges the receiver 300 by setting a rotary type operation switch (not shown) to ①. The charging path is specified to be supplied to the battery 372 of 370.

On the other hand, when the battery 262 is discharged inside the power supply device 260 of the transmitter 200, the charging terminal A 263 is connected to the charging terminal B 394 of the receiver 300, and the charging mode selection unit When the operation switch of the 391 is set to ② to charge the transmitter 200, the charging path is specified so that the charging current of the solar cell 380 is supplied to the battery 262 of the power supply 260 for the transmitter. In addition, the charging current of the solar cell 380 is limited to within the predetermined second constant voltage in the second electrostatic child part 393 via the charging mode selection unit 391 (for the purpose of preventing overcharging) and transferred to the charging terminal B. do.

On the other hand, when the battery built in the mobile phone terminal 100 is discharged is connected to the charging terminal (B) using the adapter (charge terminal A), and the operation switch of the charging mode selection unit 391 is set to ③ The charging path is designated to recharge the battery of the mobile phone terminal 100 by the charging current of the solar cell 380, and the charging current of the solar cell 380 passes through the charging mode selecting unit 391 and the first constant voltage unit 392. ) Is limited to within a predetermined first constant voltage (higher than the second constant voltage) (for the purpose of preventing overcharge) and is transmitted to the charging terminal B.

As such, the charging circuit unit 390 integrally configured in the receiving unit 300 supplies power to each unit of the receiving unit 300 and recharges the battery of the transmitting unit and the battery of the mobile terminal when necessary. will be.

As another embodiment of the present invention, the receiver is the same as the configuration of Figure 4, the transmitter is a connection jack (microphone terminal, audio terminal, ground terminal provided to connect a normal earphone jack to the mobile terminal 100, as shown in FIG. ) Can be used by pin connection. The transmitter 400 is connected to the microphone terminal of the connection jack to compare the microphone 410 for transmitting the user's voice to the other party through the antenna of the mobile phone terminal 100 and the audio jack of the connection jack to detect a ring signal. The unit 430 is provided. The comparison unit 430 detects a ring signal by comparing the signal received from the mobile phone terminal 100 with the reference signal input from the reference voltage generator 420, and detects a ring signal only when the ring signal is larger than the reference signal. To the CPU 440 of the transmitter 400. The CPU 440 supplies power to the RF transmitter 460 through the RF controller 450.

In addition, the power supply device 470 that supplies power to the CPU 440 and the RF controller 450 supplies power itself from a battery 472 and a battery 472 that output a predetermined charging power. And a power supply unit 471 for supplying predetermined power to each unit. The battery 472 may be recharged when a charging current is applied from the charging terminal A 473. That is, when the charging terminal A 473 is connected to the charging terminal B 394 of the receiving unit 300, and the operation switch of the charging mode selecting unit 391 is set to ②, the charging unit 400 is charged. The battery 272 of the transmitter power supply 470 for receiving the charging current of the battery 380 is charged.

In addition, the voice of the other party caller is transmitted to the RF transmitter 460 of the transmitter 400 through the mobile phone terminal 100, the RF transmitter 460 in the RF controller 450 in accordance with the control operation of the CPU 440 When the power is supplied to the receiver 300 through the antenna ANT2.

As described above, the present invention receives power from a solar cell provided integrally with a receiving unit, thereby supplying each unit, so that the defects caused by using the battery power of the vehicle as in the past can be eliminated. Since the battery is placed and charged, it has the advantage of being simple and inexpensive. In addition, the present invention has a useful effect that can be self-charged using a solar cell even in a place where electricity can not be supplied outdoors or outdoors.

Claims (2)

A mobile phone terminal for performing wireless communication with a base station, a transmitter connected to a connection port of the mobile phone terminal to process voices of a user and the other party, and a receiver for voice output of voices of the other party transmitted wirelessly from the transmitter; In a wireless handfree kit, The receiving unit And a charging circuit unit for selectively supplying a solar cell generating a charging current and a charging current supplied from the solar cell to any one of the receiver, the transmitter, and the mobile phone terminal according to the charging mode. The transmitting unit A transmission battery for supplying power, a power supply unit for supplying predetermined power supplied from the transmission battery to each unit, and a charging terminal for supplying a charging current supplied from the charging circuit unit to the transmission battery; Self-charging wireless hand free kit using a solar cell, characterized in that. The method of claim 1, wherein the charging circuit unit An operation switch for selecting any one of the reception unit, the transmission unit, and the mobile phone terminal, and a charging mode selection unit for setting a charging path according to an operation state of the operation switch, and a charging path from the charging mode selection unit to the mobile phone terminal Is set to the first constant voltage unit for limiting and outputting the charging current supplied from the solar cell to within a predetermined first constant voltage, and the charging current supplied from the solar cell when the charging path is set from the charging mode selection unit to the transmitting unit. A second constant voltage unit for limiting the output within the second constant voltage lower than the constant voltage, and the input terminal is commonly connected to the first and second constant voltage unit, characterized in that consisting of a charging terminal for supplying a charging current through the output terminal on the other side Self-charging wireless handkit using solar cells.