KR101610678B1 - Wireless charging apparatus with information providing function - Google Patents

Wireless charging apparatus with information providing function Download PDF

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Publication number
KR101610678B1
KR101610678B1 KR1020150110673A KR20150110673A KR101610678B1 KR 101610678 B1 KR101610678 B1 KR 101610678B1 KR 1020150110673 A KR1020150110673 A KR 1020150110673A KR 20150110673 A KR20150110673 A KR 20150110673A KR 101610678 B1 KR101610678 B1 KR 101610678B1
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KR
South Korea
Prior art keywords
wireless charging
module
unit
power
wireless
Prior art date
Application number
KR1020150110673A
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Korean (ko)
Inventor
한혜운
김성수
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한혜운
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Priority to KR1020150110673A priority Critical patent/KR101610678B1/en
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Publication of KR101610678B1 publication Critical patent/KR101610678B1/en

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    • H02J7/025—
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0075—Magnetic shielding materials
    • H02J2007/0096—

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

A wireless charging apparatus having an information transmission function is disclosed.
A wireless charging device having an information transmission function according to an exemplary embodiment includes a body on which a portable device is placed for wireless charging; A first surface of a first printed circuit board on which a wireless charging module for wireless charging is mounted, and a second surface of the first printed circuit board on which a beacon for transmitting information to the portable device is mounted, Wherein a first coil of the wireless power transmission unit included in the wireless charging module is disposed on a second surface of the first printed circuit board, A shielding member is disposed between the second surface of the first printed circuit board and the primary coil, and the power supply unit and the control unit of the wireless charging module are disposed at positions corresponding to the power supply unit and the control unit of the beacon module, respectively.

Description

[0001] The present invention relates to a wireless charging apparatus with information providing function,

A wireless charging device is disclosed. More particularly, the present invention relates to a wireless charging apparatus having an information transmission function.

Portable devices such as smart phones and tablets have built-in rechargeable batteries. A separate charger is required to charge the battery of the portable device. Generally, the charger is connected to the commercial power line by wire, and charges the battery by the power supplied from the commercial power source.

However, since the connection terminal of the rechargeable battery is exposed to the outside, there is a high possibility that the connection terminal is contaminated by foreign substances such as dust. However, if the connection terminal is contaminated, the charging can not be normally performed.

In order to solve such a problem, a wireless charging technology has recently been developed and used in portable devices. If the portable device is placed on a wireless charger, the battery inside the portable device can be charged without a cable.

However, since the conventional wireless charger simply has a charging function, its utilization is limited.

Korean Patent Laid-Open No. 10-2013-0097462 (entitled: Wireless Charger Having Sound Output Function, Release Date: September 3, 2013)

A wireless charging apparatus having an information transmission function is disclosed.

According to an aspect of the present invention, there is provided a wireless charging apparatus having an information transmission function, including: a body in which a portable device is placed for wireless charging; A first surface of a first printed circuit board on which a wireless charging module for wireless charging is mounted, and a second surface of the first printed circuit board on which a beacon for transmitting information to the portable device is mounted, Wherein a first coil of the wireless power transmission unit included in the wireless charging module is disposed on a second surface of the first printed circuit board, A shielding member is disposed between the second surface of the first printed circuit board and the primary coil, and the power supply unit and the control unit of the wireless charging module are disposed at positions corresponding to the power supply unit and the control unit of the beacon module, respectively.

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The power supply unit of the wireless charging module and the power supply unit of the beacon module are electrically connected, and the power supply unit of the wireless charging module further includes a power connection port to which a cable connected to the commercial power supply is connected.

The power connection port is used as a communication port for communication with the portable device.

And an output unit outputting an operation state of the wireless charging module, wherein the output unit includes at least one of a light emitting device, a speaker, and a vibrator.

According to the present invention, since the wireless charging device and the beacon module are provided in the wireless charging device, various information of the beacon signal received from the beacon module is displayed through the portable device while wirelessly charging the portable device through the wireless charging module , Various information can be provided to the user of the portable device.

Conventionally, there are restrictions on the installation position of the beacon terminal. In contrast, according to the present invention, since the beacon module is provided in the wireless charging device, the restriction on the installation position can be reduced.

1 is a diagram illustrating a wireless charging system in accordance with an embodiment of the present invention.
2 is a view showing an example of a printed circuit board mounted inside the body of the wireless charging device.
3 is a view showing another example of a printed circuit board mounted inside the body of the wireless charging device.
4 is a diagram illustrating a configuration of a wireless charging device according to an embodiment of the present invention.
5 is a diagram showing a configuration of a portable device according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In this specification, singular forms include plural forms unless otherwise specified in the opening paragraph. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, like reference numerals designate like elements.

1 is a diagram illustrating a wireless charging system in accordance with an embodiment of the present invention.

Referring to FIG. 1, a wireless charging system according to an embodiment includes a wireless charging apparatus 100 (hereinafter referred to as a wireless charging apparatus) and a portable apparatus 200 having an information transmission function.

The wireless charging device 100 has an information transmission function and wirelessly transmits power to the portable device 200. [ The wireless charging device 100 includes a body 101 and a cable 102.

Inside the body 101, the components constituting the wireless charging device are disposed. According to one embodiment, the body 101 may have a plate shape to be placed on the floor surface. Specifically, the body 101 may be embodied as a circular plate, an elliptical plate, or a polygonal plate. According to another embodiment, the body 101 may have a shape capable of receiving a portable device. Specifically, the body 101 includes a mounting surface contact portion (not shown) placed on a mounting surface of a table or the like, and a mounting portion formed to have an angle with respect to the mounting surface contacting portion to mount the portable device 200 . FIG. 1 illustrates a case where the body 101 of the wireless charging apparatus 100 is implemented as a circular plate.

Inside the body 101 is provided at least one printed circuit board on which the components of the wireless charging device 100 are mounted.

According to one embodiment, a first printed circuit board 110P and a second printed circuit board 120P are provided inside the body 101 as shown in FIG.

The first surface of the first printed circuit board 110P and the first surface of the second printed circuit board 120P are arranged to face each other. The components of the wireless charging module 110 are mounted on the first side of the first printed circuit board 110P. For example, the power supply unit 111, the output unit 112, the control unit 113, and the wireless power transmission unit 114 shown in FIG. 4 are mounted. The components of the beacon module 120 are mounted on the first surface of the second printed circuit board 120P. For example, the power supply unit 121, the control unit 122, and the wireless communication unit 123 shown in Fig. 4 are mounted. The power supply unit 121 of the beacon module 120 is disposed at a position corresponding to the power supply unit 111 of the wireless charging module 110. The control unit 122 of the beacon module 120 is connected to the wireless charging module 110, The control unit 113 of FIG.

On the other hand, the primary coil 114a of the wireless power transmission unit 114 is disposed on the second surface of the first printed circuit board 110P. A shielding member 103 is disposed between the second surface of the first printed circuit board 110P and the primary coil 114a.

According to another embodiment, only the first printed circuit board 130P is provided inside the body 101 as shown in FIG.

The components of the wireless charging module 110 and components of the beacon module 120 are mounted on the first side of the first printed circuit board 130P. Examples of the components of the wireless charging module 110 include a power supply unit 111, an output unit 112, a control unit 113, and a wireless power transmission unit 114 shown in FIG. Components of the beacon module 120 include the power source unit 121, the control unit 122, and the wireless communication unit 123 shown in FIG. The power supply unit 111 of the wireless charging module 110, the control unit 112 of the wireless charging module 110, and the power supply unit 121 of the beacon module 120 are connected to the first surface of the first printed circuit board 130P, And the control unit 122 of the beacon module 120 may be mounted side by side. As described above, when the components of the wireless charging module 110 and the components of the beacon module 120 are mounted side by side on the first surface of the first printed circuit board 130P, the thickness T of the body 101 is Can be reduced.

On the other hand, the second surface of the first printed circuit board 130P is disposed in the direction opposite to the paper surface, and the primary coil 114a of the wireless power transmission unit 114 is disposed on the second surface. A shielding member 103 is disposed between the second surface of the first printed circuit board 130P and the primary coil 114a.

Referring again to FIG. 1, a marker is displayed on one side of the body 101. The marker allows the user to easily recognize the position where the portable device 200 is to be placed. The marker is transmitted from the wireless power transmission unit 114 of the wireless charging module 110 to the wireless power receiving unit 210 of the portable device 200 when the portable device 200 is placed on the body 101. [ And may be displayed at a position where the power transmission efficiency is maximized. Specifically, when the center of the primary coil 114a of the wireless power transmission unit 114 and the center of the secondary coil 210a of the wireless power reception unit 210 are located on the same axis, the power transmission efficiency becomes maximum The marker can be displayed in consideration of this point.

The body 101 is connected to a commercial power source (not shown) via a cable 102. The cable 102 may be embodied as hardware integrally with the body 101 or electrically separated from the body 101.

The wireless charging apparatus 100 as described above transmits the power supplied by the commercial power supply to the portable device 200 in real time to perform charging or stores the power supplied by the commercial power supply to the portable device 200 Charging is performed by transfer.

The portable device 200 is supplied with power wirelessly from the wireless charging device 100. The portable device 200 may include a communication device. Examples of the communication device include a smart phone and a tablet. However, the communication device is not necessarily limited to the illustrated example, and may be included in the portable device 200 if it is a communication device provided with a wireless power receiving unit 210 capable of receiving power transmitted wirelessly in the wireless charging device 100 .

4 is a diagram showing a configuration of a wireless charging device 100 according to an embodiment of the present invention.

Referring to FIG. 4, the wireless charging apparatus 100 according to an embodiment includes a wireless charging module 110 and a beacon module 120.

The wireless charging module 110 is a module for wirelessly transmitting power to the portable device 200. The wireless charging module 110 transmits power to the portable device 200 according to the wireless power transmission technique when the portable device 200 approaches within a predetermined distance. The wireless power transmission technology converts electric energy into a radio frequency (RF) signal of a specific frequency, and transmits energy to a load using electromagnetic waves generated therefrom. Wireless power transmission techniques can be classified into near-field wireless power transmission technology and remote wireless power transmission technology.

The near field wireless power transmission technique can be classified into a magnetic induction (MI) method, a magnetic resonance (MR) method, and a microwave radiation method. The magnetic induction method is a method of transmitting electric power by using a magnetic field induced between a primary coil (transmission coil) and a secondary coil (receiving coil). The magnetic resonance method uses a resonance phenomenon between the primary coil (transmission coil) connected to the source coil and the secondary coil (reception coil) connected to the device coil to transmit power.

The wireless charging module 110 delivers power wirelessly to one of the illustrated schemes. The wireless charging module 110 includes a power supply unit 111, an output unit 112, a control unit 113, and a wireless power transmission unit 114.

The power supply unit 111 receives power from the commercial power supply. Specifically, the power supply unit 111 is provided with a power connection port (not shown), and one end of the cable 102 is inserted into the power connection port. The other end of the cable 102 is connected to a commercial power source. The power connection port may be implemented as a USB port, for example. In this case, the power connection port can also be used as a communication port.

The output unit 112 outputs the operating state of the wireless charging module 110 to at least one of an optical signal, an audible signal, and a tactile signal. To this end, the output unit 112 may include at least one of a light emitting diode (LED), a speaker, and a vibrator. One or more light emitting devices may be provided and one or more light emitting devices may be disposed on the upper surface of the body 101 or on the side surface of the body 101. [ The speaker and the vibrator may be disposed on the inner lower side of the body 101.

The control unit 113 connects and controls the components of the wireless charging module 110. For example, when the portable device 200 approaches within a predetermined distance, the control unit 113 controls the wireless power transmission unit 114 so that power can be transmitted to the portable device 200. [ Thereafter, when the power transmission interruption signal is received from the portable device 200, the control unit 113 stops power transmission to the portable device 200. [

Based on the control signal from the control unit 113, the radio power transmission unit 114 can convert the direct current power supplied from the commercial power supply to the alternating current power. When AC power is applied to the primary coil 114a of the wireless power transmission unit 114, a current flows through the primary coil 114a, and an AC magnetic field is generated in the primary coil 114a by the current. The alternating magnetic field generated in the primary coil 114a passes through the secondary coil 210a of the wireless power receiving unit 210 provided in the portable device 200 and an induced current flows in the secondary coil 210a do. The AC power is picked up from the induced current flowing in the secondary coil 210a of the wireless power receiving unit 210 and the AC power is converted into the DC power. The direct current power is supplied to the power supply unit 220 of the portable device 200.

The beacon module 120 periodically generates a beacon signal. The beacon signal may include at least one of identification information and additional information of the beacon module 120. The additional information is information related to a place where the beacon module 120 is provided, that is, a place where the wireless charging device 100 is provided. For example, a welcome message, discount coupon, and store information are examples. This additional information may be received from a server (not shown) or stored in the beacon module 120. [

The beacon module 120 includes a power source unit 121, a control unit 122, and a wireless communication unit 123.

The power supply unit 121 supplies power to the respective components of the beacon module 120. The power supply unit 121 of the beacon module 120 is electrically connected to the power supply unit 111 of the wireless charging module. When the power supply unit 121 of the beacon module 120 is electrically connected to the power supply unit 111 of the wireless charging module 110, the power is simultaneously supplied to the wireless charging module 110 and the beacon module 120 by one commercial power supply Can supply.

The control unit 122 connects and controls the respective components of the beacon module 120.

The wireless communication unit 123 can transmit and receive signals according to the wireless communication method with the portable device 200. For example, the wireless communication unit 123 transmits a beacon signal to the portable device 200 and receives a response signal from the portable device 200. [ For this purpose, the wireless communication unit 123 may include a wireless communication unit such as a wireless broadband Internet, a WiFi, a ZIGBEE, a Bluetooth (e.g. Bluetooth 4.0), an Ultra Wide Band (UWB) And Near Field Communication (NFC).

5 is a diagram showing a configuration of a portable device 200 according to an embodiment.

5, the portable device 200 includes a wireless power receiving unit 210, a power supply unit 220, a control unit 230, a communication unit 240, an input unit 250, and a display unit 260 .

The wireless power receiving unit 210 can transmit and receive signals to and from the wireless power transmitting unit 114 of the wireless charging module 110. Specifically, the wireless power receiving unit 210 may request power transmission to the wireless power transmitting unit 114 in response to a signal received from the wireless power transmitting unit 114. In response to the power transmitting request, the wireless power transmitting unit 114 The wireless power receiving unit 210 may provide the received power to the power supply unit 220. [

Thereafter, the wireless power receiving unit 210 can determine whether charging of the power supplying unit 220 is completed. If it is determined that the charging of the power supply unit 220 is completed, the wireless power receiving unit 210 may request the wireless charging module 110 to suspend the power transmission.

The power supply unit 220 may supply power to the respective components of the portable device 200. [ The power supply 220 may include, for example, a battery. The battery may be physically detachable from the portable device 200 or may be implemented as a hardware integral unit with the portable device 200.

The control unit 230 connects and controls the respective components of the portable device 200. For example, in a state in which the wireless charging module 110 of the wireless charging device 100 is receiving power, the controller 230 may transmit an application (Application, App). When the beacon signal including the identification information is received from the beacon module 120, the control unit 230 extracts the identification information from the received beacon signal and displays the extracted identification information through the display unit 260. In this state, when the user selects the identification information displayed on the display unit 260, various communication parameters (e.g., BD Name, BD Address, Major, Minor, RSSI, Measured Power, Distance , Proximity, TX Power, Interval, Battery Level, and Hardware Version) is displayed on the display unit 260.

When the identification information displayed on the display unit 260 is selected by the user or parameter setting for the selected identification information is completed, the controller 230 transmits a response signal to the selected beacon module 120. Thereafter, when a beacon signal including the additional information is received from the beacon module 120 receiving the response signal, the controller 230 extracts the additional information from the received beacon signal and displays the extracted additional information through the display unit 260.

The communication unit 240 can communicate with the beacon module 120 of the wireless charging device 100. To this end, the communication unit 240 may be a wireless communication unit, such as a Wireless Broadband Internet, a WiFi, a ZigBee, a Bluetooth (e.g. Bluetooth 4.0), an Ultra Wide Band (UWB) And Near Field Communication (NFC).

The input unit 250 receives a command from the user. The input unit 250 may include a button and / or a keypad.

The display unit 260 displays a command processing result. For example, the display unit 260 displays identification information and additional information extracted from the beacon signal. Such a display may be implemented as a transparent display, an opaque display, a soft display, a stationary display, or a combination thereof.

The portable device 200 may further include other components in addition to the components described above. For example, the portable device 200 may include at least one of a light emitting element, a speaker, and a vibrator in addition to the display portion 260 as an output portion. Such output means may output identification information or additional information extracted from the beacon signal in at least one form of light, sound, and vibration.

The wireless charging system according to one embodiment of the present invention has been described above with reference to FIGS. Since the wireless charging module 110 and the beacon module 120 are provided in the wireless charging device 100 according to the embodiment of the present invention, And various information of the beacon signal received from the beacon module 120 is displayed through the portable device 200, so that various information can be provided to the user of the portable device 200. [

In addition to the embodiments described above, embodiments of the present invention may be implemented via a medium, e.g., a computer-readable medium, including computer readable code / instructions for controlling at least one processing element of the above described embodiments . The medium may correspond to media / media enabling storage and / or transmission of the computer readable code.

The computer readable code may be recorded on a medium as well as transmitted over the Internet, including, for example, a magnetic storage medium (e.g., ROM, floppy disk, hard disk, etc.) A recording medium such as a recording medium (e.g., CD-ROM, Blu-Ray, DVD), or a transmission medium such as a carrier wave. Since the media may be a distributed network, the computer readable code may be stored / transmitted and executed in a distributed manner. Still further, by way of example only, processing elements may include a processor or a computer processor, and the processing elements may be distributed and / or contained within a single device.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood that the invention may be practiced. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: Wireless charging device
110: Wireless charging module
120: Beacon module
200: Portable device

Claims (10)

A body on which the portable device is placed for wireless charging; And
And a cable connecting the body and a commercial power source,
A first surface of a first printed circuit board on which a wireless charging module for wireless charging is mounted and a first surface of a second printed circuit board on which a beacon module for transmitting information to the portable device is mounted, Are arranged to face each other,
A primary coil of a wireless power transmission unit included in the wireless charging module is disposed on a second surface of the first printed circuit board,
A shielding member is disposed between the second surface of the first printed circuit board and the primary coil,
Wherein the power supply unit and the control unit of the wireless charging module are disposed at positions corresponding to the power unit and the control unit of the beacon module, respectively. delete delete delete delete The method according to claim 1,
The power supply unit of the wireless charging module and the power supply unit of the beacon module are electrically connected,
Wherein the power supply unit of the wireless charging module further comprises a power connection port to which a cable connected to the commercial power supply is connected. The method according to claim 6,
Wherein the power connection port is utilized as a communication port for communication with the portable device. The method according to claim 1,
And an output unit for outputting an operation state of the wireless charging module,
Wherein the output section includes at least one of a light emitting element, a speaker, and a vibrator. Wherein a first surface of a first printed circuit board on which a wireless charging module is mounted and a first surface of a second printed circuit board on which a beacon module is mounted face each other, A wireless power receiving unit wirelessly receiving power from the wireless charging module of the wireless charging device disposed at a position corresponding to the power supply unit and the control unit, respectively;
A controller for extracting information from a beacon signal received from the beacon module when an application for communicating with the beacon module of the wireless charging device is executed in a state where wireless charging is being performed by the wireless charging device; And
And output means operated according to the extracted information. 10. The method of claim 9,
Wherein the output means includes at least one of a display portion, a light emitting element, a speaker, and a vibrator.
KR1020150110673A 2015-08-05 2015-08-05 Wireless charging apparatus with information providing function KR101610678B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017217648A1 (en) * 2016-06-13 2017-12-21 엘지이노텍(주) Wireless power transmission antenna, and device and system using same
CN109121029A (en) * 2018-09-20 2019-01-01 钱军成 Modular speaker wireless contacts charhing unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017217648A1 (en) * 2016-06-13 2017-12-21 엘지이노텍(주) Wireless power transmission antenna, and device and system using same
CN109121029A (en) * 2018-09-20 2019-01-01 钱军成 Modular speaker wireless contacts charhing unit

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