KR20130113738A - A mobile device case with the wireless charger - Google Patents

Abstract

PURPOSE: A mobile terminal case comprising a wireless charger is provided to solve battery problem of a mobile terminal by receiving wireless power energy. CONSTITUTION: A module component unit (110a) converts wireless power energy received from a coil to be supplied to a mobile terminal. The module component unit is separated from a case. A near field communication (NFC) coil is comprised around the coil. When the case and the module component unit are connected with each other through a connection terminal connecting an electric signal, a connection terminal connecting the coil is separated from a connection terminal connecting the NFC coil. [Reference numerals] (11) Communication module

Description

A mobile device case with the wireless charger

The present invention relates to an apparatus for receiving a wireless power energy transmitted from a transmitter of a wireless charger by providing a receiver for a wireless charger in a wallet for a portable terminal.

As mobile phones, smartphones, and tablet PCs (Tablet PCs), which can be referred to as portable terminals, have become commonplace, a lot of accessory technology for portable terminals is being developed. In particular, the market for portable terminals also has a significant increase.

In addition, the case for the mobile terminal is composed of leather, soft or hard synthetic resin, and is configured to protect the surrounding surface of the mobile phone. However, such a mobile phone case does not perform any other function in addition to the function to wrap around the protective surface of the mobile phone.

Of course, prior art 1 to take out the business card or card while making a call using a mobile phone to solve the frequently occurring part of calling the phone number or card registration number of people written on the business card, A cover member having a pair of flaps connected to each other so as to be folded or unfolded therein, and a holder provided on an inner side of the flap to fix the mobile phone, the cover having a pocket formed therein, and the holder having the cover Purse-type cell phone case characterized in that detachably coupled to the member has been presented.

However, the above functions do not significantly improve the function of the case for the mobile terminal. However, such a case may be difficult to perform other functions in addition to the function of wrapping and protecting the circumferential surface of the mobile terminal. There was a discomfort that thickened. Therefore, it is necessary to combine the technology for improving the function of the mobile terminal by utilizing the thick portion.

Prior Art 1: Republic of Korea Utility Model Registration 20-0451310, Registered: December 2, 2010

An object of the present invention is to incorporate a technology for improving the function of a portable terminal in a case for a portable terminal having a certain thickness, and more particularly, by combining a function capable of receiving wireless power energy. In addition to solving the problem, it is to add a function of the NF coil to enable the mobile terminal to perform effective short-range communication.

The object of the present invention is to provide a wireless terminal that can receive wireless power energy for transmitting power wirelessly, and in a case for a portable terminal equipped with a wireless charger functioning to mount a portable terminal, the wireless received from the coil It further comprises a module component portion for functioning to switch the power energy to the portable terminal, the module component portion is achieved by being separated from the case.

In addition, an NFC coil is further provided around the coil, and when the case and the module component part are connected to each other through a connection terminal for connecting an electrical signal, a connection terminal for connecting the coil and a connection terminal for connecting the NFC coil are mutually connected. Are separated.

On the other hand, when the signal from the coil and the signal from the NFC coil is connected to the portable terminal is connected via a USB terminal, the USB terminal is provided in a module unit having a separate module component part.

In addition, a coil is provided to receive the wireless power energy for transmitting the wireless power, and has a function to mount the portable terminal, or to switch to supply the wireless power energy received from the coil to the portable terminal. Further comprising a module component portion, wherein the module component portion is provided in the case.

In addition, when wireless power energy is supplied to the portable terminal through the module component part, the wireless terminal is supplied through the USB terminal, and the USB terminal is connected to the case bottom plate, and when the portable terminal is provided with an NFC coil, The provided coil and the NFC coil provided in the portable terminal do not overlap each other.

In addition, when the module part is provided on the bottom plate of the case, and the coil capable of receiving wireless power is provided on the bottom plate of the case, the area provided with the coil is larger than the area provided with the module part. The USB terminal can be folded and unfolded.

According to the present invention, by incorporating the function to receive the wireless power energy to solve the battery problem of the mobile terminal, as well as the function of the NF coil for the mobile terminal to enable the mobile terminal to perform effective short-range communication effectively The case can be provided.

1 to 4 is a view showing the principle and the coil structure of the wireless charger.
5 to 10 is a view of an embodiment provided with a wireless charger in the mobile phone case.
11 and 12 are views of an embodiment in which a power energy receiving coil and an NFC coil are formed together in a case.
13 to 16 are still another embodiment of the present invention, a view showing an embodiment to be provided in the case the parts provided in the module unit.
17 and 18 are views of an embodiment in which both the wireless power reception coil and the NFC coil are provided on the case bottom plate.
19 and 20 are views of an embodiment in which the battery may be further provided on the bottom plate.

Hereinafter, a case of a portable terminal equipped with a wireless charger according to an embodiment of the present invention will be described in detail.

The portable terminal in the present invention refers to a mobile phone, a smart phone, and a tablet PC. That is, it means a portable communication device.

That is, in the present invention, a wireless power receiver capable of receiving wireless power energy is provided in the case of the portable terminal, so that the power supply is convenient when the portable terminal is used.

- Example 1 -

First, the wireless charging method used in the present invention will be described.

1 to 4 is a view showing the principle and the coil structure of the wireless charger.

1 is a view for explaining a wireless charger principle. 1 is a general structure for supplying power energy. First, the receiving unit 200 has a structure in which antenna loop coils 52 and 53 are connected in series to a capacitor C, (31) are connected in parallel with a capacitor (C). The only difference is that the transmitting unit 300 is further provided with a resonance filter, and the resonance filter is configured as a structure in which the coil 52 and the capacitor C are connected in series. It is a matter of course that the series connection and the parallel connection of the loop coil and the capacitor can be changed.

Generally, a wireless charger uses a wireless power consortium (WPC) scheme. In order to transmit a wireless power energy of a WPC scheme, the following conditions are generally satisfied.

"Voltage: 7-15V (Receiver), Frequency: 100-200kHz, Current: 5V (0.7A), Power: 3.5W, Coil Inductance Value: 6-8 Micro Henry-12 Micro Henry"

On the other hand, the coil and the capacitor are connected in series. In the wireless power energy transmission, the medium is an antenna loop coil 52 (53), and the antenna coil 52 (53) has a structure connected to a capacitor and is connected in series.

Meanwhile, the KTP method, which we developed in-house, has the following features.

"Voltage: 7-48V (receiver), Frequency: 1-3MHz or 3-10 MHz, Current: 5V (0.4-2.5A), Power: 5W or 10W, Coil inductance value: 600nH (Nano Henry)-6 μH (Micro Henry) "

In this case, the voltage and current values shown above do not mean that they exactly correspond to the above numbers, but they do indicate the range.

However, the biggest difference between the WPC and KTP systems is the difference between the coil inductance and frequency. First, the reference can be set to 1 MHz from the difference of the frequency values. In other words, the WPC method is low frequency below 1 MHz (Mega Hertz) and the KTP method is high frequency above 1 MHz (Mega Hertz).

However, in actual use frequency, the WPC method uses a frequency of 100 - 200 KHz and uses a high frequency in KTP method 1 - 3 or 3 - 10 MHz or more.

In addition, the inductance value of the coil is "7 micro Henry-12 micro Henry" and the KTP system is "600 nano Henry-6 micro Henry".

The KTP scheme having the above characteristics has a significant advantage. For example, a high-frequency component is used for a component that oscillates a frequency, thereby enabling downsizing of the component (generally, the high frequency can reduce the size of the component), reducing the inductance value of the coil, A coil formed by printing on a PCB substrate (or a resin substrate) can be used.

By forming a coil on the substrate, it is advantageous in mass production and can reduce the cost. Also, the number of turns of the coil (turns, the number of turns) is more than 50 times for the WPC method, and the KTP method is also possible for less than 50 times.

On the other hand, the number of turns is a number referred to as a standard to be applied to a mobile phone device. In general, a mobile phone device is a number generally calculated when the area is within a maximum of 100 cm square.

2 is a diagram of an embodiment in which a resonator (relay) is provided in the transmitter 300.

The wireless charger is a general structure for supplying power energy. First, the receiving unit 200 has a structure in which an antenna loop coil 52 for receiving wireless power is connected in series to a capacitor C, and the transmitting unit 300 also transmits wireless power And the transmitting antenna loop coil 31 is connected in parallel with the capacitor C. It is a matter of course that the series connection and the parallel connection of the loop coil and the capacitor can be changed.

In general, the receiver 200 is also referred to as a resonator (typically, the resonator is a combination of both the coil and the condenser C). However, in the present invention, only a reference is added to the resonator coil for convenience of illustration. Means that both the coil and the capacitor are included. However, the resonator 31a is generally provided in the transmitter 300.

At this time, the antenna loop coils 31 and 52 are used to transmit or receive the wireless power energy, and the resonator 31a serves to amplify the wireless power energy.

In addition, in order to have a good efficiency, the antenna loop coils 52 and 31 and the resonator 31a should have some distance. However, in order to maintain the above-mentioned separation distance, the thickness of the device becomes thicker, and further, the resonator is further provided, thereby increasing the cost of the device.

In the wireless charger of the present invention, the first scheme has the following conditions.

"Voltage: 7-15 V (receiver), Frequency: 100-200 kHz, Current: 1-0.7 A, Power: 3-10 W, Coil Inductance Value: 1 Micro Henry-30 Micro Henry"

On the other hand, the coil and the capacitor are connected in series. In the wireless power energy transmission, the medium is an antenna loop coil 52 (53), and the antenna coil 52 (53) has a structure connected to a capacitor and is connected in series.

As another method, the second method may have the following conditions.

"Voltage: 7-24V (receiver), Frequency: 1MHz-20 MHz, Current: 1A-3A, Power: 5 -30 W, Coil Inductance Value: 600nH (Nano Henry)-100 Micro Henry"

At this time, the criterion for distinguishing the two methods is the frequency difference. That is, the reference can be set to 1 MHz. That is, the first scheme is low frequency below 1 MHz (Mega Hertz) and the second scheme is high frequency above 1 MHz (Mega Hertz).

However, in practice, a frequency of 100-200 KHz is mainly used, or a high frequency of 6-8 MHz or more is used.

Also, the inductance value of the coil is "8 micro Henry-12 micro Henry" and the second scheme is "600 nano Henry-2 micro Henry".

At this time, the advantage of the second method is that the coil is formed on the substrate, which is advantageous in mass production and can reduce the unit cost. Also, the number of turns of the coil (turns, the number of turns) may be less than 50 times.

3 and 4 are views of an embodiment showing the structure of a coil for transmitting and receiving wireless power energy.

The coil has a structure corresponding to all of the transmitter coil 31, the receiver coil 52 and the repeater coil 31a.

3 is a diagram illustrating an embodiment of the spiral coil, in which the coil 52 is wound as shown. In addition, the NFC (Near Field Communication) coil 51 may be further formed outside.

4A is a diagram of an embodiment in which a coil is formed on a substrate (a PCB or a flexible substrate, which means a substrate on which a coil can be formed by a printing method).

4 (b) is a diagram showing an embodiment of the repeater coil. Generally, the inductance value of the transmission coil 31 is different from the inductance value of the relay coil 31a provided in the transmission unit. Generally, the inductance value of the relay coil 31a is set to the inductance value of the transmission coil 31 2 to 12 times higher.

Therefore, the length of the relay coil 31a is longer than the length of the transmission coil. That is, since the inductance value is 2 to 12 times higher, the length of the repeater coil is also formed to be 2 to 12 times longer than the length of the transmitter coil, and FIG. It is a figure of the Example which made length longer, and showed the said relationship of a transmitter coil and a repeater coil as coil length.

On the other hand, the optimization relationship is most optimized when the relay inductance value of the coil is 7-12 times larger than the inductance value of the transmitter coil 31. The repeater coil will then be 7-12 times longer.

- Example 2 -

5 to 10 is a view of an embodiment provided with a wireless charger in the mobile phone case.

5 to 7, the case for a mobile terminal of the present invention provides a structure for supplying power to the mobile terminal. The module unit 110 having the USB terminal 112 or the connection terminal may supply power to the portable terminal 150 mounted in the case 100. In addition, the portable terminal 150 and the module unit 110 may be separated, and the portable terminal and the case 100 may also be separated.

That is, FIG. 5 is a diagram illustrating a state in which the portable terminal 150 and the module unit 110 are coupled to the case 100, and FIG. 6 is a case 100 and a module in which the portable terminal 150 is not mounted. It is a figure which shows the state in which the part 110 was separated.

In addition, the case 100 for a mobile terminal used in the present invention means a wallet for a mobile terminal or a case for a mobile terminal generally used. As shown in FIG. 6, the cover 102, the side wall portion 106, the bottom plate 103, the locking portion 107, and the like are formed. In some cases, a camera mouth 106 is also formed.

The case 100 is made of leather, soft resins, artificial leather or plastic.

In addition, between the module unit 110 and the case 100, the electrode connecting terminals 104 and 111 to which the pruses and the minus electrodes are respectively connected are further provided in the module unit 110 and the case 100. In addition, the module unit 110 is further provided with a USB terminal 112, it is possible to supply power to the portable terminal 150 through the USB terminal 112.

At this time, in the present invention, the USB terminal 112 means a general terminal that can be connected to a terminal that can supply an electrical signal or data signal from the portable terminal in the external, in the present invention, such a terminal is a USB terminal 112 ). Therefore, if it has a structure that is connected to the terminal for supplying an electrical signal or data signal to the portable terminal from the outside it will be included in the scope of the present invention.

In addition, a separate USB terminal 112a may be provided in the module unit 110. That is, even when the module unit 110 of the present invention is coupled to the USB terminal 112 of the portable terminal, a separate USB terminal is provided to the module unit 110 of the present invention in order to perform data communication by wire to the portable terminal. 112a) is provided.

FIG. 7 is a view illustrating in detail the electrode connecting terminals 104 and 111 to which the plus and minus electrodes are respectively connected between the module unit 110 and the case 100. The electrode connection terminals 104 and 111 are made of a metal material to facilitate the flow of electricity.

Meanwhile, the electrode connection terminals 104 and 111 illustrated in FIG. 7 do not necessarily have a structure limited to the shape of FIG. 7. Of course, if the form of a terminal that can be connected to a power source can be applied to the usual general connection terminal is natural.

8 is a view showing that a coil is formed on the bottom plate 103. That is, in the present invention, the coil 52 is formed inside the bottom plate 103. Therefore, a coil is formed between the outer bottom plate 103a and the inner bottom plate 103b.

The outer bottom plate 103a is formed thicker than the inner bottom plate 103b. In addition, the coil 52 is insulated, and it is natural that a spiral coil or a coil formed on a PCB may be used in various ways. That is, the present invention does not limit the structure of the coil. Therefore, a coil capable of receiving wireless power energy can be applied to an embodiment of the present invention.

Meanwhile, a ferrite sheet 63 may be further provided between the coil 52 and the inner bottom plate 103b to enhance the insulation effect.

9 is a diagram of an embodiment showing a block diagram capable of supplying wireless power energy to a portable terminal.

In the present embodiment, it is characterized by being separated into a module component part 110a and a coil part 100a.

Generally, a wireless charging system is composed of a transmitting unit for transmitting power energy and a receiving unit for receiving power energy, and the transmitting unit periodically senses a certain signal to determine whether a charging request signal is sensed. When the charging request signal is detected, the transmission unit of the transmission unit is turned on. Then, the battery voltage on the receiver side is checked through the signal of the receiver, and when the chargeable state is confirmed, the transmission is performed.

At this time, when the state goes into the above state, reception of power energy is performed at the receiving section, and power of the battery of the receiving section is charged.

And, in the above description, the communication module 11 (Zigbee, etc. can be used as a communication module, but can be used as a short-range communication module can also be used as a communication module 11) in the above description, each signal and component is determined A control unit (MCU) 15 controlled by a program and a DC / DC converter 12 for adjusting a voltage or power to a battery voltage of a final portable terminal 150 or the like are provided. In this case, the DC / DC converter 12 functions to lower the voltage and may also include an LDO or a charger IC.

In addition, a charging part (or matching part) is provided, and the charging part includes a rectifying function to transmit the received wireless power energy to the controller.

On the other hand, the antenna loop coil 52 capable of receiving wireless power energy is provided on the bottom plate 103 of the case 100 as described above. The antenna loop coil 52 is connected to the devices of the module component part 110a of the present invention through the electrode connection terminals 104 and 111 in a circuit.

In addition, a separate USB terminal 112a may be provided in the module unit 110. That is, even when the module unit 110 of the present invention is coupled to the USB terminal 112 of the portable terminal, a separate USB terminal is provided to the module unit 110 of the present invention in order to perform data communication by wire to the portable terminal. 112a) is provided. Therefore, a third device is connected to the separate USB terminal 112a.

In general, the voltage and current received by the receiving coil 52 that receives power energy in the wireless charging system are received through the matching part 10 and sent to the control unit (MCU) 15.

In summary, in the present invention, the wireless power energy transmitted from the transmitter (the convenience module, which is not illustrated separately and means a general apparatus capable of transmitting wireless power energy) to the bottom plate 103 in the present invention. The provided coil 52 receives and transmits the received energy to the module unit 110 through the connection terminals 104 and 111. Then, the module unit 110 converts power energy to be supplied to the battery of the portable terminal, and supplies the converted power energy to the portable terminal through the USB terminal 112.

FIG. 10 is a diagram illustrating a mutual positional relationship between the coil 52 provided in the case and the NFC coil 51 provided in the portable terminal 150.

If the portable terminal is provided with the NFC coil 51, the coil 52 provided in the present invention should not interfere with the communication of the NFC coil 51 provided in the portable terminal. As shown in the figure, if the NFC coil 51 is provided in the mobile terminal 150, the region of the coil 52 and the region of the NFC coil 51 should not overlap each other.

That is, the coil area CA is formed in a portion where the NFC coil 51 is not formed in the entire area NA in which the NFC coil 51 is formed. Of course, some overlap, but not overlapping enough to interfere with communication.

- Example 3 -

11 and 12 are views of an embodiment in which a power energy receiving coil and an NFC coil are formed together in a case.

11 shows a block diagram. The process of supplying the power energy received from the coil 52 to the mobile terminal 150 is similar to the previous embodiment. However, the data received through the NFC coil 51 is delivered to the mobile terminal 150 through a separate path.

As shown in the drawing, the coil unit 100a is provided with a receiving coil 52 and an NFC coil 51, and the two coils are separated into circuits. Therefore, the connection terminal is also divided into two paths.

That is, as shown in the figure, the terminal 104a for connecting the coil 52 and the connection terminal 104b for connecting the NFC coil 51 are provided in the connection terminal 104 provided in the case 100, respectively. In addition, the terminal 111a for connecting the coil 52 and the connection terminal 111b for connecting the NFC coil 51 may be provided in the connection terminal 111 provided in the module unit 100, respectively.

The coils 52 are connected to the terminals 104a and 111a, respectively, with positive (+) portions and negative (-) portions with negative terminals. At this time. The negative connection terminal is connected to ground.

In addition, the connection terminals 104b and 111b connecting the module unit 110 and the NFC coil 51 are connected to each other and connected to the NFC module 13, and as a result, are connected to the portable terminal through the USB terminal 112. Will be connected.

In addition, in the embodiment of FIG. 11, as shown in the embodiment of FIG. 9, a separate USB 112a may be further provided.

The NFC module 13 refers to an NFC transmission module, and the NFC transmission module includes an analog interface, an R / F level interface, a card mode detector, and the like, so that data can be transmitted between terminals at a close distance of 10 cm. Function.

In general, NFC is a non-contact type short-range wireless communication module that uses 13.56Mz frequency band as one of RFID tags and transmits data between terminals at a distance of 10cm. In addition to billing, NFC is used extensively in supermarkets and general stores for transporting travel information for goods information and visitors, as well as traffic and access control locks.

12 is a view showing in more detail that there are separate connecting terminals 104a and 111a connecting the coil 52 and connecting terminals 104b and 111b connecting the NFC coil 51, respectively. The connecting terminal 104a provided in the case 100 as a terminal for connecting the connector is coupled to the connecting terminal 111a of the module unit and the connecting terminal 104b provided in the case 100 as a terminal for connecting the NFC coil 51. ) Is coupled to the connection terminal 111b of the module unit.

Therefore, the terminal 104a connecting the coil and the terminal 104b connecting the NFC coil 51 are separated from each other and are insulated from each other. Similarly, the terminal 111a and the connection terminal 11b are also insulated from each other.

On the other hand, the connection terminal proposed in the present invention is not limited to the structure of FIG. That is, if the terminal for connecting the coil and the terminal for connecting the NFC coil to deliver the electrical signal in a state separated or insulated from each other can be applied to the embodiment of the present invention. In addition, each of the connection terminals is made of metal to facilitate the flow of electricity.

In addition, a user who wants to use the case for a mobile terminal of the present invention should download a separate application, and the application may exist separately for each carrier.

Example 4 -

13 to 16 are diagrams of embodiments in which the case 100 includes components provided in the module unit as still another embodiment of the present invention.

FIG. 13 shows a block diagram, the principle and configuration of which are similar to the previous embodiment, in which only all parts are provided in the case 100. That is, both the case unit 110a and the coil unit 100a may be mounted to the case 100. For this purpose, each part must be used as a small one, for example, it is preferable to use the height of each part within 3mm.

In addition, it has a structure in which the position of the USB is changed left and right in the arrangement of all components. The USB terminal 112 is also mounted to the case 100. Of course, a separate USB terminal 112a may be further provided as in the embodiment of FIG. 9.

Meanwhile, in the drawings, all parts have a shape that is provided in the case bottom plate 103, but for convenience of design structure, the case 100 may be provided in the side surface 106 or the cover 102. And, it is preferable that the connection of each component is made in the flexible substrate.

In addition, when the NFC coil is provided in the mobile terminal, the coil 51 and the NFC coil should be designed so that they do not overlap each other.

Meanwhile, although the NFC coil 51 is not provided in the embodiment of FIG. 13, the NFC coil 51 may be further provided, and components connected to the NFC coil may be further provided as in the embodiment of FIG. 11.

14 is a view illustrating an embodiment in which the USB terminal 112 is provided in the case 100. Although not particularly shown in the drawing, the USB terminal 112 may be folded at the end of the case. Since the folding structure can be inserted into the connection terminal of the portable terminal.

15 is a view showing an embodiment in which the USB terminal 112 can be unfolded. In order to insert and connect the USB terminal 112 connected to the case bottom plate 103 of the present invention to the connection terminal of the portable terminal, the USB terminal 112 should be spread out. And this function can be achieved by making the part of the bottom plate connected with the USB terminal 112 made of a flexible material.

FIG. 16 is a view showing an embodiment in which the size ratio of the component part 110a and the coil part 100a in the bottom plate 103 is illustrated. S1 represents the length of the component portion 110a, and S2 represents the length of the coil portion 100a. And it is preferable that S2 is larger than S1. More preferably up to 50% larger.

As described above, the size of the coil unit 100a is made as large as possible so that wireless power energy can be better received.

- Example 5 -

17 and 18 are views of an embodiment in which both the wireless power reception coil and the NFC coil are provided on the case bottom plate.

17 shows a schematic cross-sectional view of the coil 52 and the NFC coil 51. In the present invention, it is seen that the wireless power reception coil 52 and the NFC coil 51 may be provided integrally. In addition, in the present invention, the integral means that the coil 52 and the NFC coil 51 are provided on the bottom plate 103 of the case 100.

The coil 52 and the NFC coil 51 are formed on the same substrate and the insulating layer 55a may be coated therebetween as shown in FIG. The coil 52 and the NFC coil 51 may be formed on a separate substrate 55 as shown in FIG. It is a matter of course that the substrate 55 uses a normal flexible substrate.

Meanwhile, the relative ratio of the coil 52 and the NFC coil 51 can be determined. In the present invention, the NFC coil 51 is provided with the coil 52 therein. Therefore, the length L1 of the NFC coil 51 can be said to be the thickness of the NFC coil 51 (not the cross-sectional thickness but the thickness in plan view). On the other hand, L2 represents the distance of the area occupied by the coil 52 (that is, the shape of the coil 52 may be donut-shaped and may be empty inside).

In the present invention, the length of L2 is at least two times longer than the length of L1. The reason is to maximize the reception of wireless power energy.

Further, it is preferable that the distance between the coil 52 and the NFC coil 51 (meaning a left-right distance in the drawing) is somewhat spaced apart. The separation distance is about 1-10 mm and most optimally about 5 mm.

18 is a diagram of another embodiment. That is, when the mobile terminal is small within 5 inches, it is common that the coil 52 is provided inside the NFC coil 51 as shown in (A). However, when the mobile terminal is large enough to be 10 or 7, the coil ( 52 may be provided outside the NFC coil 51.

- Example 6-

19 and 20 is a view of the embodiment shown that the battery may be further provided on the bottom plate.

19, the coil 51 is provided on the top of the outer bottom plate 103a, and the battery 63 is provided thereon. In this case, a ferrite sheet 63 is further provided between the battery 62 and the coil 51 to be insulated. And the inner bottom plate 103b is provided for that. At this time, the outer bottom plate is preferably formed thicker than the inner bottom plate, but is not necessarily limited thereto.

In the present invention, the thickness of the bottom plate is preferably less than 5mm and the optimum thickness may be less than 3mm in the state in which the battery is not provided only the coil, and when the battery is provided of the bottom plate 103 The thickness is preferably within 7 mm and the optimum thickness is preferably within 5 mm.

FIG. 20 is a block diagram of a battery in which a battery (Chrdiong) (charging) function (charging IC) is further added between the DC / DC converter 12 and the USB terminal 112. 61 is provided, the final power can be supplied and stored in the battery 62, the battery power is supplied to the mobile terminal 150 through the USB terminal 112.

13: NFC module 51: NFC coil
52; Receiver coil 61; Cell phone connection terminal
62a, 62b: power connection terminal
200; Receiver 300: Transmitter
31: transmitter coil 100: case
110: module portion 110a: circuit component portion
100a: coil part 104, 111: connection terminal
104a, b: connection terminal 111a, b: connection terminal
112: USB terminal 112a: Separate USB terminal

Claims (9)

In the case for a portable terminal provided with a coil for receiving the wireless power energy for transmitting power wirelessly, and equipped with a wireless charger that functions to mount the portable terminal,
And a module component part for converting the wireless power energy received from the coil to the portable terminal, wherein the module component part is separated from the case. . The case of claim 1, wherein an NFC coil is further provided around the coil. The wireless terminal of claim 2, wherein when the case and the module component part are connected to each other through a connection terminal for connecting an electrical signal, the connection terminal for connecting the coil and the connection terminal for connecting the NFC coil are separated from each other. Case for portable terminal with charger. The case of claim 2, wherein the signal from the coil and the signal from the NFC coil are connected through a USB terminal when the signal from the coil is connected to the portable terminal. The case of claim 4, wherein the USB terminal is provided in a module unit provided with a separate module component. In the case for a portable terminal provided with a coil for receiving a wireless power energy for transmitting wireless power, and equipped with a wireless charger functioning to mount the portable terminal,
And a module component part for converting the wireless power energy received from the coil to be supplied to the portable terminal, wherein the module component part is provided in the case. . The portable terminal with a wireless charger according to claim 6, wherein when wireless power energy is supplied to the portable terminal through the module component part, the wireless terminal is supplied through a USB terminal, and the USB terminal is connected to a case bottom plate. Case for terminal. The case of claim 6, wherein when the NFC terminal is provided in the portable terminal, the coil provided in the case and the NFC coil provided in the portable terminal do not overlap each other. The method of claim 6, wherein the bottom plate of the case is provided with a module component portion, when the coil that can receive wireless power on the bottom plate of the case, the coil is provided than the area provided with the module component portion Case for a mobile terminal with a wireless charger, characterized in that the area is larger.

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