KR20060101745A - Contactless charge system and its charging method of mobile communication terminal by being attached to refrigerator - Google Patents

Abstract

The present invention relates to a non-contact charging system and a charging method of a mobile communication terminal by attaching a refrigerator to a built-in contactless charging device in a refrigerator so that power is charged to the battery when the terminal battery is attached to the refrigerator. The refrigerator includes a mobile communication terminal in which power is charged by a current, and a primary coil inside the door, and when the at least one mobile communication terminal is attached to a surface, the refrigerator generates an induced current in the secondary coil built in the terminal. Consists of a separate connector or charger is not required, and since the surface area of the refrigerator is relatively large and is driven for 24 hours, it is possible to simultaneously charge a plurality of terminals or batteries at the same time, thereby maximizing user convenience. , Using the charging method through contact with the connector or charger Therefore, it is possible to prevent a malfunction caused by the contamination or corrosion of the metal terminal used in the conventional method, it is possible to improve the power supply stability of the battery or terminal and to significantly reduce the burden of additional costs.

Refrigerator, contactless charging device, induction current, coil, battery, mobile communication terminal

Description

Contactless charging system and its charging method of a mobile communication terminal by attaching a refrigerator {Contactless Charge System and its Charging method of Mobile Communication Terminal by being Attached to Refrigerator}

1 is an external view showing the appearance of a contactless charging system of a mobile communication terminal according to a preferred embodiment of the present invention;

2 is an external view showing the appearance of a contactless charging system of a mobile communication terminal according to another embodiment of the present invention;

3 is a block diagram showing the internal configuration of a contactless charging system according to the present invention,

4 is a view showing an embodiment of a contactless charging device according to the present invention,

5 is a circuit diagram showing an embodiment of a contactless charging system according to the present invention;

6 is a flowchart illustrating a charging method of a contactless charging system according to the present invention.

<Explanation of symbols on main parts of the drawings>

10: refrigerator 20: battery of the mobile communication terminal

11: power supply unit 12: contactless charging device

16: induction current generating unit 21: charging unit

22: battery cell

The present invention relates to a contactless charging system of a mobile communication terminal through a refrigerator and a charging method thereof. In particular, a contactless charging device is built in a refrigerator which is driven for 24 hours, and the terminal battery is attached to the refrigerator. It relates to a non-contact charging system and a charging method of a mobile communication terminal by attaching a refrigerator to charge the power.

In general, a mobile communication terminal consumes power of a battery installed in the terminal when a user uses the battery for a predetermined time, thereby recharging the discharged battery using an external power source.

That is, the terminal body and the battery are each provided with a metal terminal to be coupled and contact with each other so that the operating power is transferred from the battery to the terminal by contacting the metal terminal with each other, the battery is a charger or connector provided separately It is connected to the self to charge the power through the external power input through the charger or connector.

However, since the battery charging method of the general mobile communication terminal requires a separate charger or connector when charging, an additional cost is required to equip the charger or connector, and when the charger or connector is not carried, the charging operation is performed. There is a problem that cannot be done.

In addition, when a plurality of terminal batteries are all discharged and required to be charged, it is impossible to charge a plurality of batteries at the same time according to the number of chargers or connectors provided.

In particular, since the external power source for charging is input by contacting the metal terminal provided in the charger or the connector, the battery does not operate normally when the metal terminal is contaminated by foreign matters. When the metal terminal is corroded, the charger must be rebuilt, thereby increasing the burden of additional costs and greatly reducing the ease of use.

The present invention has been made to solve the above-mentioned problems of the prior art, provided with a contactless charging device in a refrigerator that is driven for 24 hours in a home or building, at least one mobile communication terminal or a battery thereof on the surface of the refrigerator It is an object of the present invention to provide a non-contact charging system and a charging method of the mobile communication terminal by attaching a refrigerator to perform the charging operation of the battery by attaching.

The refrigerator with a contactless charging function according to the present invention for solving the above problems uses a power supply for supplying power applied from the outside, and when at least one battery for a mobile communication terminal is attached, the power supplied from the power supply unit By generating an induction current in the battery, and accordingly characterized in that it comprises a contactless charging device to charge the power of the battery.

A mobile communication terminal attachable to a refrigerator according to the present invention includes a mobile communication terminal main body for transmitting and receiving data to and from another terminal through a mobile communication network, and supplies operating power to each unit mounted on the terminal main body and constituting the terminal body. It is characterized in that it comprises a battery that is charged by the induction current generated by being attached to the surface.

The contactless charging system of a mobile communication terminal with a refrigerator according to the present invention includes a mobile communication terminal in which power is charged by an induced current, and a primary coil inside a door, so that at least one of the mobile communication terminals is provided on a surface thereof. When attached, it characterized in that it comprises a refrigerator for generating an induced current in the secondary coil built in the terminal.

In addition, the contactless charging method of the mobile communication terminal according to the present invention comprises the first step of attaching the battery of the mobile communication terminal provided with at least one to the refrigerator, and if the attachment is detected, the magnetic field generated by the operating power of the refrigerator Induced current is generated in the coil embedded in the battery, characterized in that it comprises a second step of charging the power through the generated induced current.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. 1 is an external view showing the appearance of a contactless charging system of a mobile communication terminal according to a preferred embodiment of the present invention, Figure 2 is an appearance of a contactless charging system of a mobile communication terminal according to another embodiment of the present invention This is the external view shown.

First, in the contactless charging system of a mobile communication terminal according to the present invention, a refrigerator will be described.

The refrigerator 10 is a home appliance for food storage in which a space for storing food is provided therein. The refrigerant present inside is circulated to prevent heat entry and exit to the outside, and to maintain low temperature to prevent corruption and to store food for a long time. Make this possible.

Recently, a refrigerator such as a microprocessor capable of processing data and / or a chipset, such as a memory for storing data, and an Ethernet module that can be connected to an external Internet network are installed, and various additional functions besides the primary function of food storage are provided. This refrigerator may be referred to as an internet refrigerator.

The Internet refrigerator not only obtains desired information from video / audio data transmitted and received through a web page connected to an external internet network, but also stores internal applications such as a family schedule, a phone book, a notepad, and a household account book. By running the application in the kitchen, you can easily perform family information management. Such refrigerators are generally operated 24 hours a day for food storage.

In addition, when the refrigerator includes the microprocessor and / or memory, the refrigerator may perform a home server function for monitoring and operation of a plurality of home appliances connected to a home network constructed in a home or a building. The refrigerator according to the present invention can be applied not only to the general refrigerator but also to the internet refrigerator as described above.

In the contactless charging system of the mobile communication terminal according to the present invention, as shown in FIG. 1, the mobile communication terminal or the battery 20 of the terminal is attached to the surface of the refrigerator to allow the battery to be charged.

In this case, the charging method of the battery uses an induction current principle generated between two coils spaced at a predetermined distance, and guides the coil inside the battery 20 by the power supplied from the operating power of the refrigerator 10. When current flows, the induced current of the coil is transferred to a cell (storage battery) in the battery 20 so that the power is charged.

Therefore, the refrigerator 10 includes a contactless charging device 12 provided with a coil inside the door, and the contactless charging device 12 may be applied to any device for generating an induced current. In consideration of being mounted inside the door of the refrigerator 10, it is preferably formed in a pad shape.

In addition, the position at which the contactless charging device 12 is built may vary depending on the implementation form of the refrigerator 10 to perform a charging operation on both sides of the refrigerator 10 as well as the entire area or a part of the inside of the door. It may be arranged to perform, and may be released embedded in the set position at the time of production of the product of the refrigerator 10, it is further configured to include a separate coupling member in the refrigerator without a charging function ( By attaching 12), the battery charging operation can be performed.

In particular, the mobile communication terminal or its battery 20 attached to the refrigerator 10 may be attached by magnetic force, in which case the terminal or battery falls during charging due to a weakening of magnetic force or the weight of the terminal. In order to prevent this, as shown in FIG. 2, the battery charging groove 30 may be formed in the front surface of the refrigerator 10 corresponding to the region where the charging device 12 is disposed.

Therefore, the terminal or the battery 20 may be attached to the inside of the battery charging groove 30 to perform a charging operation. It is possible to perform the charging operation without damaging the terminal or the battery 20.

In this case, the battery charging groove 30 may further include a guide 35 having a low height outside the groove in order to prevent the terminal seated on the bottom surface of the groove from falling out of the refrigerator.

Figure 3 is a block diagram showing the internal configuration of a contactless charging system according to the present invention.

The contactless charging system according to the present invention, as described above, a mobile communication terminal or a refrigerator 10 to which the battery is attached, and a mobile communication terminal to which the operating power of the battery 20 is charged when attached to the refrigerator 10. It is configured to include.

In this case, the mobile communication terminal is a terminal equipped with a battery 20, in detail, a terminal main body (not shown) for transmitting and receiving data through a mobile communication network, and a battery 20 for supplying operating power to the main body do.

The refrigerator 10 uses the power supply unit 11 for supplying power applied from the outside and the power supplied from the power supply unit 12 when at least one mobile communication terminal battery 20 is attached. And a contactless charging device 12 for generating an induced current and charging the power of the battery 20 accordingly.

In addition, the contactless charging device 12 is provided with an attachment detecting unit 15 for detecting whether the terminal battery 20 is attached, and a primary coil (not shown) for generating an induced current. And an induction current generator 16 for generating a magnetic field according to the detection signal received from the detector 15.

The attachment detecting unit 15 forms a magnetic field having a predetermined size on the front of the refrigerator 10 to which the battery 20 is attached, and detects the change in the magnetic field when the battery 20 is attached to the battery 10. ) May be attached.

In addition, when each region to which at least one or more of the batteries 20 is attached to the front surface of the refrigerator corresponding to the contactless charging apparatus 20 is allocated to a predetermined size, a predetermined switch (not shown) is part of each region. When the battery is mounted, the switch may operate to determine the attachment of the battery.

In this case, when the respective areas are allocated, whether the battery 20 is fully charged is determined from the size and / or supply time of the induction current supplied to the battery 20, and the battery 20 is being charged or fully charged according to the determination result. It may be configured to further include a display device (not shown) for displaying the status to the outside.

On the other hand, the battery 20 is in contact with the refrigerator 10, the charging unit 21 is provided with a secondary coil through which an induced current flows by a magnetic field generated from the attachment surface of the refrigerator 10, and the charging unit 21 It is configured to include a battery cell (22, storage battery) is charged with power by the induced current applied from).

In addition, when the power is charged or fully charged by the induction current, it may be configured to further include an indicator 23 indicating the outside, the indicator 23 may be provided as an LED or a lamp.

Figure 4 is a view showing an embodiment of a contactless charging device according to the present invention, which will be described by way of example of one of a variety of embodiments that can be implemented differently to suit the characteristics of the product when applied to the actual product Specifies that it can be implemented.

The contactless charging device 12 according to the present invention comprises a microprocessor (not shown) and the primary coil (17, 17 '), the sensor for detecting the attachment of the battery 20, and And a drive circuit (not shown) for switching the primary coils 17 and 17 '.

When the contactless charging device 12 configured as described above detects the attachment of the battery 20 in the sensor and transmits a detection signal according to the sensor, the microprocessor is configured as the primary coils 17 and 17. Generates a switching pattern of '), and the primary coils 17 and 17' perform a switching operation by the switching pattern generated by the microprocessor.

In this case, the primary coils 17 and 17 'are provided in two, and when the two primary coils 17 and 17' are wound at 90 degrees with each other on the thin film core, the respective coils 17 and 17 'are wound. ), Since a switching pattern having a phase difference of 90 degrees is formed, the power may be charged regardless of the attachment position of the battery 20.

On the other hand, the entire circuit of the contactless charging device and the corresponding mobile communication terminal or battery of the refrigerator constituting the contactless charging system according to the present invention can be configured as follows, which is one of various embodiments As an example, it is specified that the present invention may be implemented differently.

5 is a circuit diagram illustrating an embodiment of a contactless charging system according to the present invention.

In an embodiment of the contactless charging system according to the present invention, the contactless charging device is different from the charging method shown in FIG.

The solid-state charging system according to the present invention is a primary rectifying unit for converting and outputting the alternating current of the low frequency applied from the power supply unit 11 of the refrigerator to direct current, and converts the direct current applied from the primary rectifying unit to a high frequency alternating current A resonant inverter, a transformer for magnetically transmitting high frequency alternating current output from the resonant inverter, and a secondary for converting the high frequency alternating current transmitted from the transformer into a direct current suitable for the battery cell 22 and transmitting the same. It is comprised including a rectifying part.

The primary rectifier includes a plurality of rectifier diodes and capacitors to convert the operating power of the refrigerator 10 into a direct current, and the resonant inverter includes a field effect transistor (FET), and a switching pattern transmitted from a microprocessor. According to the switching operation.

The secondary rectifier includes several diodes, a capacitor, and an inductor, and converts an AC component transmitted from the secondary coil of the transformer into a DC current to be transferred to the battery cell 22.

Looking at the operation of the present invention configured as described above are as follows. 6 is a flowchart illustrating a charging method of a contactless charging system according to the present invention.

First, at least one battery of the mobile communication terminal is attached to the refrigerator (S1).

When the attachment of the battery is detected, operating power is supplied from the power supply unit of the refrigerator to form a magnetic field for generating an induced current.

Next, an induction current is generated in a coil embedded in the battery corresponding to the formed magnetic field, and the generated induction current is transferred to a battery cell (storage battery) of the battery and charged with power (S3 and S4).

While the power is being charged by the supplied induction current, the voltage level charged in the battery cell is determined. When the voltage level is higher than or equal to a predetermined voltage, the battery cell is recognized as being fully charged. (S5)

When the battery cell is fully charged according to the recognized result, the battery cell generates and transmits a signal indicating this to the outside, and generates a signal indicating that the battery is being charged even when it is being charged.

As described above, the contactless charging system and the charging method of the mobile communication terminal according to the present invention have been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed herein, and a plurality of terminals Alternatively, the technical idea of the present invention, in which a battery is attached to a refrigerator driven for 24 hours to charge power, can be easily applied by those skilled in the art within a protected range.

The contactless charging system of the mobile communication terminal and a charging method thereof according to the present invention configured as described above may include a built-in contactless charging device and detect an occurrence of at least one terminal attached thereto, thereby generating an induced current. With a refrigerator to charge the battery, a separate connector or charger is not required, the refrigerator has a relatively large surface area and can be charged for 24 hours at a time, because the refrigerator is relatively large and operates for 24 hours, so that the user's convenience There is an effect that can be maximized.

In addition, since the charging method through contact with the connector or the charger is not used, a malfunction caused by the contamination or corrosion of the metal terminal used in the conventional method can be prevented, thereby improving the power stability of the battery or the terminal and increasing the additional cost. There is an effect that can greatly reduce the burden on the dragon.

Claims (15)

A power supply unit supplying power applied from the outside; When a battery for at least one mobile communication terminal is attached to the battery by using the power supplied from the power supply unit to generate an induced current, and accordingly configured to include a non-contact charging device to charge the battery power Refrigerator with contactless charging function. The method of claim 1, The contactless charging device is a refrigerator having a contactless charging function, characterized in that built in the door of the refrigerator. The method of claim 1, The contactless charging device is a refrigerator having a contactless charging function, characterized in that formed in a pad shape of a predetermined size. The method of claim 1, The contactless charging device is a refrigerator having a contactless charging function, characterized in that it further comprises a coupling member to enable the detachable to the inside of the door of the refrigerator. The method of claim 1, The contactless charging device may include: an attachment detecting unit detecting whether the battery for the terminal is attached; And a primary coil for generating an induction current, the induction current generating unit generating a magnetic field according to a detection signal received from the attachment detecting unit. The method of claim 5, The primary coil is a refrigerator having a contactless charging function, characterized in that each of the two coils are wound so as to have a phase difference of 90 degrees by the power supplied from the power supply. A mobile communication terminal main body which transmits and receives data with another terminal through a mobile communication network; The battery is mounted to the terminal body and supplies operating power to each part constituting the terminal body, and includes a battery which is charged with power by induction current generated by being attached to the surface of the refrigerator. Communication terminal. The method of claim 7, wherein The battery is in contact with the refrigerator, the charging unit is provided with a secondary coil through which an induced current flows by a magnetic field generated from the attachment surface of the refrigerator; A mobile communication terminal attachable to a refrigerator, characterized in that it comprises a battery cell is charged with power by the current applied from the charging unit. The method of claim 8, The battery is a mobile communication terminal attachable to the refrigerator, characterized in that it further comprises an indicator indicating that when the power is charged or fully charged by the induced current to the outside. A mobile communication terminal in which power is charged by an induced current; A primary coil is provided inside the door, and when at least one or more of the mobile communication terminals are attached to the surface, the refrigerator comprises a refrigerator for generating an induction current in the secondary coil embedded in the terminal. Contactless charging system of mobile communication terminal. The method of claim 10, The mobile terminal has a contactless charging function, characterized in that attached to the refrigerator by a magnetic force. The method of claim 10, The refrigerator has a contactless charging function, characterized in that the front of the door, the battery charging groove of a predetermined size to which the battery for the mobile communication terminal is attached is formed inside. The method of claim 12, The battery charging groove is a refrigerator having a contactless charging function, characterized in that the guide is provided on the outside horizontally so that the battery for the terminal does not fall. A first step of attaching a battery of the at least one mobile communication terminal to the refrigerator; When the attachment is detected, the magnetic field generated by the operating power of the refrigerator to generate an induction current in the coil embedded in the battery, characterized in that it comprises a second step of charging the power through the generated induction current Contactless charging method of the mobile communication terminal. The method of claim 14, The second step is a contactless charging method of a mobile communication terminal, characterized in that further comprising an output process of notifying the outside during charging or charging of the power supply.

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