WO2023033571A1

WO2023033571A1 - Wireless power transmission device

Info

Publication number: WO2023033571A1
Application number: PCT/KR2022/013129
Authority: WO
Inventors: 조용원
Original assignee: 삼성전자 주식회사
Priority date: 2021-09-01
Filing date: 2022-09-01
Publication date: 2023-03-09
Also published as: KR20230033390A

Abstract

A wireless power transmission apparatus according to various embodiments disclosed in the present document comprises: a case including a loading area in which a first electronic device is to be loaded and a mounting area in which a second electronic device is to be inserted; a first coil arranged to correspond to the loading area; and a second coil arranged to correspond to at least a portion of the mounting area, wherein the loading area is formed on the upper portion of the case so as to be parallel to a first direction, the mounting area is formed as a recessed portion at a location adjacent to the loading area, the second coil can be arranged to be spaced a predetermined distance or more apart from the first coil in a second direction, which differs from the first direction.

Description

wireless power transmission device

Various embodiments disclosed in this document relate to a wireless power transmission device, for example, to a wireless power transmission device capable of charging a plurality of electronic devices.

The use of portable electronic devices such as smart phones, tablet PCs, and wearable devices is increasing, and it is becoming increasingly common for one user to utilize multiple portable electronic devices. Since the portable electronic device includes a rechargeable secondary battery, the user can use the electronic device for a specified period of time even without a separate external power supply. The secondary battery may be recharged in a wired or wireless manner. The wired charging method requires a cable or a charger suitable for the electronic device, which can be cumbersome to carry or store. The wireless charging method can convert electric energy into electromagnetic waves having a frequency suitable for each different electronic device and wirelessly transmit the energy without a transmission line. For example, different electronic device(s) may be charged using one wireless power transmission device (eg, a charging pad).

Wireless power transmission technology is a method of transmitting power using an electromagnetic field induced in a coil. An electromagnetic field is generated by applying a current to a transmitting coil, and an induced current is formed in a receiving coil by the generated electromagnetic field to supply electrical energy. there is.

When wireless power is transmitted to a plurality of external electronic devices using one wireless charging device, crosstalk may occur between the wireless powers transmitted to the respective external electronic devices.

According to various embodiments, a wireless power transmission device in which crosstalk between wireless powers is prevented while transmitting wireless power to a plurality of external electronic devices may be provided.

According to various embodiments, a case including a seating area for mounting a first electronic device and a mounting area for inserting a second electronic device; a first coil disposed to correspond to the seating area; and a second coil disposed to correspond to at least a portion of the mounting area, wherein the seating area is formed parallel to the first direction on the upper portion of the case, and the mounting area is formed as a concave portion adjacent to the seating area. And, the second coil may be provided with a wireless power transmission device disposed to be spaced apart from the first coil by a predetermined distance or more in a second direction different from the first direction.

According to various embodiments, a first coil for charging a first electronic device and a second coil for charging a second electronic device are spaced apart in a specific direction, so that wireless power generated from the first coil and second coil Confusion of generated wireless power can be prevented

1 is a block diagram illustrating an electronic device in a network environment according to various embodiments disclosed herein.

2 is a block diagram illustrating a wireless power transmission device according to various embodiments disclosed in this document.

3 is a diagram illustrating an implementation example of a wireless power transmission system according to various embodiments.

4 is a diagram illustrating a state in which a second electronic device is mounted on a wireless power transmission device according to various embodiments.

5 is an exploded perspective view of the wireless power transmission device of FIG. 3 .

FIG. 6 is a diagram showing the lower surface of the main case of the wireless power transmission device of FIG. 3 .

7 is a top view of a wireless power transmission device according to various embodiments.

8 is a view showing a side view of the A-A' section of FIG. 7 and the wireless power transmission device.

9 illustrates another implementation example of a wireless power transmission device according to various embodiments.

10 illustrates another implementation example of a wireless power transmission device according to various embodiments.

11 is a diagram illustrating a process of inserting a second electronic device into a wireless power transmission device from the side of a wireless power transmission device according to various embodiments.

12 is a diagram showing another embodiment of a wireless power transmission device according to various embodiments from the side of the wireless power transmission device.

1 is a block diagram of an electronic device 2001 in a network environment 2000, according to various embodiments. Referring to FIG. 1 , in a network environment 2000, an electronic device 2001 communicates with an electronic device 2002 through a first network 2098 (eg, a short-range wireless communication network) or through a second network 2099. It is possible to communicate with the electronic device 2004 or the server 2008 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 2001 may communicate with the electronic device 2004 through the server 2008. According to an embodiment, the electronic device 2001 includes a processor 2020, a memory 2030, an input module 2050, an audio output module 2055, a display module 2060, an audio module 2070, a sensor module ( 2076), interface 2077, connection terminal 2078, haptic module 2079, camera module 2080, power management module 2088, battery 2089, communication module 2090, subscriber identification module 2096 , or an antenna module 2097. In some embodiments, in the electronic device 2001, at least one of these components (eg, the connection terminal 2078) may be omitted or one or more other components may be added. In some embodiments, some of these components (eg, sensor module 2076, camera module 2080, or antenna module 2097) are integrated into a single component (eg, display module 2060). It can be.

The processor 2020, for example, executes software (eg, the program 2040) to cause at least one other component (eg, hardware or software component) of the electronic device 2001 connected to the processor 2020. It can control and perform various data processing or calculations. According to one embodiment, as at least part of data processing or operation, processor 2020 transfers instructions or data received from other components (e.g., sensor module 2076 or communication module 2090) to volatile memory 2032. , process commands or data stored in the volatile memory 2032 , and store resultant data in the non-volatile memory 2034 . According to an embodiment, the processor 2020 may include a main processor 2021 (eg, a central processing unit or an application processor), or a secondary processor 2023 (eg, a graphic processing unit, a neural network processing unit) that may operate independently or together with the main processor 2021 . (NPU; neural processing unit), image signal processor, sensor hub processor, or communication processor). For example, when the electronic device 2001 includes a main processor 2021 and an auxiliary processor 2023, the auxiliary processor 2023 may use less power than the main processor 2021 or be set to be specialized for a designated function. can The auxiliary processor 2023 may be implemented separately from or as part of the main processor 2021 .

The auxiliary processor 2023 may, for example, take place of the main processor 2021 while the main processor 2021 is in an inactive (eg, sleep) state, or when the main processor 2021 is active (eg, running an application). ) state, together with the main processor 2021, at least one of the components of the electronic device 2001 (eg, the display module 2060, the sensor module 2076, or the communication module 2090) It is possible to control at least some of the related functions or states. According to one embodiment, the auxiliary processor 2023 (eg, image signal processor or communication processor) may be implemented as part of other functionally related components (eg, camera module 2080 or communication module 2090). there is. According to an embodiment, the auxiliary processor 2023 (eg, a neural network processing device) may include a hardware structure specialized for processing an artificial intelligence model. AI models can be created through machine learning. Such learning may be performed, for example, in the electronic device 2001 itself where artificial intelligence is performed, or may be performed through a separate server (eg, server 2008). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning or reinforcement learning, but the foregoing example not limited to The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the foregoing, but is not limited to the foregoing examples. The artificial intelligence model may include, in addition or alternatively, software structures in addition to hardware structures.

The memory 2030 may store various data used by at least one component (eg, the processor 2020 or the sensor module 2076) of the electronic device 2001 . The data may include, for example, input data or output data for software (eg, the program 2040) and commands related thereto. The memory 2030 may include a volatile memory 2032 or a non-volatile memory 2034 .

The program 2040 may be stored as software in the memory 2030, and may include, for example, an operating system 2042, middleware 2044, or an application 2046.

The input module 2050 may receive a command or data to be used for a component (eg, the processor 2020) of the electronic device 2001 from an outside of the electronic device 2001 (eg, a user). The input module 2050 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).

The sound output module 2055 may output sound signals to the outside of the electronic device 2001 . The sound output module 2055 may include, for example, a speaker or receiver. The speaker can be used for general purposes such as multimedia playback or recording playback. A receiver may be used to receive an incoming call. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.

The display module 2060 may visually provide information to the outside of the electronic device 2001 (eg, a user). The display module 2060 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device. According to an embodiment, the display module 2060 may include a touch sensor configured to detect a touch or a pressure sensor configured to measure the intensity of force generated by the touch.

The audio module 2070 may convert sound into an electrical signal or vice versa. According to an embodiment, the audio module 2070 acquires sound through the input module 2050, the sound output module 2055, or an external electronic device connected directly or wirelessly to the electronic device 2001 (eg : Sound may be output through the electronic device 2002 (eg, a speaker or a headphone).

The sensor module 2076 detects an operating state (eg, power or temperature) of the electronic device 2001 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state. can do. According to one embodiment, the sensor module 2076 may include, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, humidity sensor, or light sensor.

The interface 2077 may support one or more specified protocols that may be used to directly or wirelessly connect the electronic device 2001 to an external electronic device (eg, the electronic device 2002). According to one embodiment, the interface 2077 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 2078 may include a connector through which the electronic device 2001 may be physically connected to an external electronic device (eg, the electronic device 2002). According to one embodiment, the connection terminal 2078 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 2079 may convert electrical signals into mechanical stimuli (eg, vibration or motion) or electrical stimuli that a user can perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module 2079 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 2080 may capture still images and moving images. According to one embodiment, the camera module 2080 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 2088 may manage power supplied to the electronic device 2001 . According to one embodiment, the power management module 2088 may be implemented as at least part of a power management integrated circuit (PMIC), for example.

The battery 2089 may supply power to at least one component of the electronic device 2001 . According to one embodiment, the battery 2089 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

The communication module 2090 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 2001 and an external electronic device (eg, the electronic device 2002, the electronic device 2004, or the server 2008). It is possible to support the establishment of and communication through the established communication channel. The communication module 2090 may include one or more communication processors that operate independently of the processor 2020 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 2090 may be a wireless communication module 2092 (eg, a cellular communication module, a short range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 2094 (eg : a local area network (LAN) communication module or a power line communication module). Among these communication modules, the corresponding communication module is a first network 2098 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 2099 (eg, a legacy communication module). It may communicate with an external electronic device through a cellular network, a 5G network, a next-generation communication network, the Internet, or a telecommunications network such as a computer network (eg, LAN or WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or implemented as a plurality of separate components (eg, multiple chips). The wireless communication module 2092 uses subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 2096 within a communication network such as the first network 2098 or the second network 2099. The electronic device 2001 may be identified or authenticated.

The wireless communication module 2092 may support a 5G network after a 4G network and a next-generation communication technology, for example, NR access technology (new radio access technology). NR access technologies include high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and access of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low latency (URLLC)). -latency communications)) can be supported. The wireless communication module 2092 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example. The wireless communication module 2092 uses various technologies for securing performance in a high frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), and full-dimensional multiplexing. Technologies such as input/output (FD-MIMO: full dimensional MIMO), array antenna, analog beam-forming, or large scale antenna may be supported. The wireless communication module 2092 may support various requirements specified in the electronic device 2001, an external electronic device (eg, the electronic device 2004), or a network system (eg, the second network 2099). According to an embodiment, the wireless communication module 2092 may include a peak data rate (eg, 20 Gbps or more) for realizing eMBB, a loss coverage (eg, 164 dB or less) for realizing mMTC, or a U-plane latency (for realizing URLLC). Example: downlink (DL) and uplink (UL) each of 0.5 ms or less, or round trip 1 ms or less) may be supported.

The antenna module 2097 may transmit or receive signals or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (eg, PCB). According to an embodiment, the antenna module 2097 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 2098 or the second network 2099 is selected from the plurality of antennas by, for example, the communication module 2090. can be chosen A signal or power may be transmitted or received between the communication module 2090 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module 2097 in addition to the radiator.

According to various embodiments, the antenna module 2097 may form a mmWave antenna module. According to one embodiment, the mmWave antenna module includes a printed circuit board, an RFIC disposed on or adjacent to a first surface (eg, a bottom surface) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, array antennas) disposed on or adjacent to a second surface (eg, a top surface or a side surface) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. there is.

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and signal (e.g. commands or data) can be exchanged with each other.

According to an embodiment, commands or data may be transmitted or received between the electronic device 2001 and the external electronic device 2004 through the server 2008 connected to the second network 2099 . Each of the external

electronic devices

2002 or 2004 may be the same as or different from the electronic device 2001 . According to an embodiment, all or part of operations executed in the electronic device 2001 may be executed in one or more external devices among the external

electronic devices

2002, 2004, or 2008. For example, when the electronic device 2001 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 2001 instead of executing the function or service by itself. Alternatively or additionally, one or more external electronic devices may be requested to perform the function or at least part of the service. One or more external electronic devices receiving the request may execute at least a part of the requested function or service or an additional function or service related to the request, and deliver the execution result to the electronic device 2001 . The electronic device 2001 may provide the result as at least part of a response to the request as it is or after additional processing. To this end, for example, cloud computing, distributed computing, mobile edge computing (MEC) or client-server computing technology may be used. The electronic device 2001 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device 2004 may include an internet of things (IoT) device. Server 2008 may be an intelligent server using machine learning and/or neural networks. According to an embodiment, the external electronic device 2004 or server 2008 may be included in the second network 2099 . The electronic device 2001 may be applied to intelligent services (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.

Electronic devices according to various embodiments disclosed in this document may be devices of various types. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. An electronic device according to an embodiment of the present document is not limited to the aforementioned devices.

Various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, like reference numbers may be used for like or related elements. The singular form of a noun corresponding to an item may include one item or a plurality of items, unless the relevant context clearly dictates otherwise. In this document, "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "A Each of the phrases such as "at least one of , B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof. Terms such as "first", "second", or "first" or "secondary" may simply be used to distinguish that component from other corresponding components, and may refer to that component in other respects (eg, importance or order) is not limited. A (eg, first) component is said to be "coupled" or "connected" to another (eg, second) component, with or without the terms "functionally" or "communicatively." When mentioned, it means that the certain component may be connected to the other component directly (eg by wire), wirelessly, or through a third component.

The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeably interchangeable with terms such as, for example, logic, logical blocks, parts, or circuits. can be used as A module may be an integrally constructed component or a minimal unit of components or a portion thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of this document provide one or more instructions stored in a storage medium (eg, internal memory 2360 or external memory 2380) readable by a machine (eg, electronic device 2001). It may be implemented as software (eg, the program 2040) including them. For example, a processor (eg, the processor 2020) of a device (eg, the electronic device 2001) may call at least one command among one or more instructions stored from a storage medium and execute it. This enables the device to be operated to perform at least one function according to the at least one command invoked. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' only means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and this term refers to the case where data is stored semi-permanently in the storage medium. It does not discriminate when it is temporarily stored.

According to one embodiment, the method according to various embodiments disclosed in this document may be included and provided in a computer program product. Computer program products may be traded between sellers and buyers as commodities. A computer program product is distributed in the form of a device-readable storage medium (eg compact disc read only memory (CD-ROM)), or through an application store (eg Play Store ^TM ) or on two user devices ( It can be distributed (eg downloaded or uploaded) online, directly between smartphones. In the case of online distribution, at least part of the computer program product may be temporarily stored or temporarily created in a storage medium readable by a device such as a manufacturer's server, an application store server, or a relay server's memory.

According to various embodiments, each component (eg, module or program) of the above-described components may include a single object or a plurality of objects, and some of the plurality of objects may be separately disposed from other components. there is. According to various embodiments, one or more components or operations among the aforementioned corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg modules or programs) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by a corresponding component of the plurality of components prior to the integration. . According to various embodiments, the actions performed by a module, program, or other component are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the actions are executed in a different order, or omitted. or one or more other actions may be added.

FIG. 2 is a block diagram illustrating a wireless power transmission device 3200 (eg, the wireless power transmission device 300 of FIG. 3 ) according to various embodiments disclosed in this document.

Referring to FIG. 2 , a wireless power transmitter 3200 includes a first external electronic device 3291 (eg, the electronic device 2002 of FIG. 1 ) and a second external electronic device 3293 (eg, the electronic device 2002 of FIG. 1 ). Device 2002) may transmit power wirelessly, and the first external electronic device 3291 and the second external electronic device 3293 may receive power wirelessly.

According to various embodiments, the wireless power transmission device 3200 may include a transmission module 3201 (3201a, 3201b) and a coil unit 3202 (3202a, 3202b), and the transmission module 3201 includes a plurality of coils ( 3201) may be selected to wirelessly transmit power. For example, the wireless power transmitter 3200 may wirelessly transmit power to at least one external

electronic device

3291 or 3293, and a plurality of external

electronic devices

3291 or 3293 may receive power. In this state, power may be transmitted wirelessly sequentially and/or concurrently.

According to various embodiments, the transmission module 3201 may include a first transmission module 3201a and a second transmission module 3201b, and the first transmission module 3201a and the second transmission module 3201b are each other. can operate independently of In the illustrated embodiment, the coil unit 3202 may include a first coil unit 3202a and a second coil unit 3202b, and may generate an electromagnetic field by receiving voltage or current from the transmission module 3201. there is. When the external

electronic devices

3291 and 3293 are located within the electromagnetic field generated by the coil unit 3202, a receiving side coil (not shown) generates an induced current to wirelessly power (e.g., charging power) can be provided.

According to various embodiments, the first transmission module 3201a includes a first control circuit 3211a, and/or a first power transmission circuit 3213a (eg, a first power adjustment circuit 3215a, a first power generation circuit) 3217a), and power may be wirelessly transmitted using at least one of the

coils

3201a, 3223a, and 3225a of the first coil unit 3202a. The second transmission module 3201b includes a second control circuit 3211b and/or a second power transmission circuit 3213b (eg, a second power adjustment circuit 3215b and a second power generation circuit 3217b). and power may be transmitted wirelessly using at least one of the

coils

3201b, 3223b, and 3225b of the second coil unit 3202b. In some embodiments, the first control circuit 3211a and the second control circuit 3211b are substantially one control circuit, and the first power transfer circuit 3213a and the second power transfer circuit 3213b are independently and / or can be driven selectively.

According to various embodiments, the coil unit 3202 may include a plurality of coils 3201 that generate an electromagnetic field by receiving voltage and/or current. According to an embodiment, the first coil unit 3202a includes some of the coils 3201 (eg, the first coil 3221a, the second coil 3223a, and/or the n-th coil 3225a). and may be electrically connected to the first transmission module 3201a. For example, the first transmission module 3201a selects at least one of the first coil 3221a, the second coil 3223a, and/or the n-th coil 3225a to wirelessly power the first external electronic device 3291. can send

According to various embodiments, the first power transmission circuit 3213a may include a first power adjustment circuit 3215a and/or a first power generation circuit 3217a. In one embodiment, the first power regulation circuit 3215a may provide a first voltage (power or current) to the first power generation circuit 3217a, and the first power generation circuit 3217a may provide a first You can change the voltage (power or current). In some embodiments, the first power generating circuit 3217a uses a first voltage (power or current) provided from the first power adjusting circuit 3215a to provide the first power at a specified frequency (hereinafter referred to as “first power”). Also referred to as 'frequency') may generate a first signal. In another embodiment, the first power generation circuit 3217a may include an inverter (eg, a bridge circuit) including a plurality of switches, and generate the first power through an on or off operation of each of the plurality of switches. A first signal for providing may be generated. According to an embodiment, the first power generation circuit 3217a may change the first frequency to another frequency by controlling an on or off operation of each of the plurality of switches.

According to various embodiments, a switch (not shown) may be further included between the first power generation circuit 3217a and the first coil unit 3202a (eg, the plurality of

coils

3221a, 3223a, and 3225a), , At least one selected from among the plurality of

coils

3221a, 3223a, and 3225a may be connected to the first power generation circuit 3217a through a switch. In one embodiment, the first signal generated from the first power generation circuit 3217a may be radiated in the form of electromagnetic waves through at least one selected from among the plurality of

coils

3221a, 3223a, and 3225a. For example, the first transmission module 3201a may wirelessly transmit power to the first external electronic device 3291 using at least one selected from among the plurality of

coils

3221a, 3223a, and 3225a.

According to various embodiments, the second coil unit 3202b may include other parts of the coils 3201 (eg, the n+1th coil 3221b, the n+2th coil 3223b, and/or the n+nth coil 3223b). Coil 3225b), and may be electrically connected to the second transmission module 3201b. For example, the second transmission module 3201b selects at least one of the n+1th coil 3221b, the n+2th coil 3223b, and/or the n+nth coil 3225b to provide a second external electronic device ( 3293) can transmit power wirelessly.

According to various embodiments, the second power transmission circuit 3213b may include a second power adjustment circuit 3215b and/or a second power generation circuit 3217b. In one embodiment, the second power regulation circuit 3215b may provide a second voltage (power or current) to the second power generation circuit 3217b, and the second power generation circuit 3217b may provide the second voltage (power or current). You can change the voltage (power or current). In some embodiments, the second power generating circuit 3217b uses the second voltage (power or current) provided from the second power adjusting circuit 3215b at a designated frequency (hereinafter referred to as 'second power') to provide second power. Also referred to as 'frequency') may generate a second signal. In another embodiment, the second power generation circuit 3217b may include an inverter (eg, a bridge circuit) including a plurality of switches, and generate second power through an on or off operation of each of the plurality of switches. A second signal for providing may be generated. According to an embodiment, the second power generation circuit 3217b may change the second frequency to another frequency by controlling an on or off operation of each of the plurality of switches.

According to various embodiments, when the first transmission module 3201a and the second transmission module 3201b simultaneously perform wireless power transmission, the first transmission module 3201a uses one of the first frequency and the second frequency. The second transmission module 3201b wirelessly transmits power through the selected coil 3221 using the other one of the first frequency and the second frequency. can In one embodiment, when the wireless power transmitter 3200 performs wireless power transmission according to the wireless power consortium (WPC) standard, the first frequency and the second frequency may be selected in the range of 110 to 205 kHz. For example, when the first transmission module 3201a selects a frequency of 110 to 115 kHz to transmit power wirelessly, the second transmission module 3201b selects a frequency of 140 to 145 kHz to transmit power wirelessly. can

According to various embodiments, a switch (not shown) may be further included between the second power generation circuit 3217b and the second coil unit 3202b (eg, the plurality of

coils

3221b, 3223b, and 3225b), , At least one selected from among the plurality of

coils

3221b, 3223b, and 3225b may be connected to the second power generation circuit 3217b through a switch. In one embodiment, the second signal generated from the second power generation circuit 3217b may be radiated in the form of electromagnetic waves through at least one selected from among the plurality of

coils

3221b, 3223b, and 3225b. For example, the second transmission module 3201b may wirelessly transmit power to the second external electronic device 3293 using at least one selected from among the plurality of

coils

3221b, 3223b, and 3225b. In some embodiments, the second signal may have the same frequency and different voltage as the first signal, and in other embodiments, the second signal may have the same voltage and different frequency as the first signal.

According to various embodiments, the

control circuits

3211a and 3211b control the first power generation circuit 3217a to generate a first signal for providing first power to the first external electronic device 3291, and second The second power generation circuit 3217b may be controlled to generate a second signal for providing second power to the external electronic device 3293 . For example, when the

control circuits

3211a and 3211b require the first external electronic device 3291 to transmit power for wireless charging, the first power adjusting circuit 3215a is configured to the first power generating circuit 3217a. Control to provide a first voltage, control the first power generation circuit 3217a to generate a first signal of a first frequency, and generate the first signal to the first coil unit 3202a (e.g.: (e.g.: Control may be transmitted to the first external electronic device 3291 through the first coil 3221a, the second coil 3223a, and/or the n-th coil 3225a. In another embodiment, the

control circuit

3211a , 3211b), when the second external electronic device 3293 requires power transmission for wireless charging, the second power adjusting circuit 3215b applies a voltage different from the first voltage to the second power generating circuit 3217b. and control the second power generation circuit 3217b to generate a second signal of the first frequency, and the generated second signal is transmitted to the second coil unit 3202b (e.g.: (e.g. n+1 Control may be transmitted to the second external electronic device 3293 through the coil 3221b, the n+2th coil 3223b, and/or the n+nth coil 3225b. In another embodiment, the control circuit (3211a, 3211b) controls the second power adjusting circuit 3215b to provide the first voltage to the second power generating circuit 3217b when the second external electronic device 3293 requires power transmission for wireless charging. and controls the second power generation circuit 3217b to generate a second signal having a frequency different from the first frequency, and the generated second signal is transmitted to the second coil unit 3202b (e.g.: (e.g. n+1 It can be controlled to be transmitted to the second external electronic device 3293 through the coil 3221b, the n+2th coil 3223b, and/or the n+nth coil 3225b.

According to various embodiments, when one external electronic device is located adjacent to and transmits power in a default state (a state in which power is not transmitted), at least one of the first power transmission circuit 3213a or the second power transmission circuit 3213b One transmission frequency may be set as the first frequency. According to various embodiments, the

control circuits

3211a and 3211b may include a plurality of external electronic devices (eg, the first external electronic device 3291 and the second external electronic device 3293) in a default state (a state in which power is not transmitted). When power transmission is required, respectively, the frequency of one of the first power generation circuit 3217a or the second power generation circuit 3217b is set to the first frequency and the frequency of the other is set to the second frequency. can For example, when power is simultaneously transmitted wirelessly to a plurality of external electronic devices, the first coil unit 3202a and the second coil unit 3202b may radiate signals of different frequencies.

According to various embodiments, while power is wirelessly provided to the first external electronic device 3291 through a signal of a first frequency using the first power generation circuit 3217a, the second external electronic device 3293 When proximity is detected, the

control circuits

3211a and 3211b set the frequency of the second power generation circuit 3217b to a second frequency different from the first frequency, and control the voltage supplied to the second power generation circuit 3217b. 2 It can be controlled to set the voltage corresponding to the frequency. According to an embodiment, the

control circuits

3211a and 3211b may receive an approach detection signal from a detection means for detecting the approach of the second external electronic device 3293.

control circuits

3211a and 3211b set the frequency of the first power generation circuit 3217a to a second frequency different from the first frequency, provide power to the first external electronic device 3291, and 2 Power may be provided to the second external electronic device 3293 by setting the frequency of the power generation circuit 3217b to the first frequency.

According to various embodiments, the

control circuits

3211a and 3211b provide power to the first external electronic device 3291 by using a first signal of a first frequency and provide power to the second external electronic device 3293 of a second frequency. The first frequency and the second frequency may be controlled to be changed, respectively, based on the charging states of the first external electronic device 3291 and the second external electronic device 3293 while the second power is provided using a signal of there is.

According to various embodiments, the

control circuits

3211a and 3211b provide power to the first external electronic device 3291 by using a signal of a first frequency and provide power to the second external electronic device 3293 by using a signal of a second frequency. If the charging power charged in the first external electronic device 3291 is lower than the charging power charged in the second external electronic device 3293 while providing power using 3291) is fully charged and the charging power charged in the first external electronic device 3291 becomes lower than the charging power charged in the second external electronic device 3293), the signal or voltage of the first frequency is converted to a different frequency (eg: The power provided to the first external electronic device 3291 may be lowered by changing to a second frequency) or a voltage (eg, the second voltage). For example, the

control circuits

3211a and 3211b may lower power provided to the first external electronic device 3291 and provide higher power to the second external electronic device 3293 .

According to various embodiments, the

control circuits

3211a and 3211b may be controlled by any one of the first external electronic device 3291 and the second external electronic device 3293 (eg, the first external electronic device 3291). When high power transmission is required, for example, a power transmission circuit for providing high power to the first external electronic device 3291 among the first power transmission circuit 3213a and the second power transmission circuit 3213b (eg, the second power transmission circuit 3213b). 1 The power transmission circuit 3213a) is set to generate a signal of the first frequency for high power transmission, and another power transmission circuit (eg, the second power transmission circuit 3213b) generates a lower power than the signal of the first frequency. It can be set to generate a signal of a frequency that can be transmitted.

According to various embodiments, different frequencies are transmitted from the wireless power transmitter 3200 (eg, the electronic device 2001 of FIG. 1) to a plurality of external electronic devices (eg, the

electronic devices

2002 and 2004 of FIG. 1). By providing power using a frequency band or non-adjacent frequency band, it is possible to increase H-Field Strength or to cause electromagnetic interference (EMI), radiated emission (RE) or conducted emission (CE). can be suppressed In some embodiments, while providing power to the first external electronic device 3291 using the first frequency, when the second external electronic device 3293 approaches, the wireless power transmission device 3200 transmits power at the first frequency and By providing power to the second external electronic device 3293 using a different second frequency, a signal of the first frequency provided to the first external electronic device 3291 and a signal of the second frequency provided to the second external electronic device 3293 Interference between signals of two frequencies can be prevented. In another embodiment, while providing power to the first external electronic device 3291 using the first frequency and providing power to the second external electronic device 3293 using the second frequency, the wireless power transmitter ( 3200 changes the first frequency and the second frequency based on the state of charge of the first external electronic device 3291 and the second external electronic device 3293, thereby changing the first external electronic device 3291 and the second external electronic device 3291 and the second external electronic device 3291. The amount of power provided to each of the first external electronic device 3291 and the second external electronic device 3293 may be adjusted according to the state of charge of the electronic device 3293 . In another embodiment, when the power provided to the first external electronic device 3291 and the power provided to the second external electronic device 3293 are different, the wireless power transmission device 3200 moves to the side requiring higher power. By setting the frequency of the transmitted signal to a lower frequency, power transmission efficiency can be increased.

In the above embodiment, the first coil unit 3202a is electrically connected to the first transmission module 3201a, and the second coil unit 3202b is electrically connected to the second transmission module 3201b. , it should be noted that various embodiments of the present invention are not limited thereto. For example, one transmission module 3201 is electrically connected to a plurality of coils 3201, and the transmission module 3201 transmits a signal of a first frequency using at least one selected from among the plurality of coils 3201. Power can be transmitted wirelessly, and power can be transmitted wirelessly through a signal of the second frequency using at least one other selected coil 3201 . In another embodiment, the wireless power transmission device 3200 includes the sensor module 2076, the communication module 2090, and/or the antenna module 2097 of FIG. 1 so that the external

electronic devices

3291 and 3293 can access may be sensed or a wireless power transmission request may be received from the external

electronic devices

3291 and 3293.

In examining various embodiments below, reference may be made to the

electronic devices

2001, 2002, and 2004 of FIG. 1 and/or the wireless power transmitter 3200 of FIG. 2 .

Referring to FIG. 3 , the wireless power transmission system 10 may include an external electronic device (eg, a first electronic device 100 and a second electronic device 200) and a wireless power transmission device 300. The description of the external

electronic devices

100 and 200 is the aforementioned wireless power transmitter (eg, the wireless power transmitter 3000 of FIG. 2) and/or the electronic device (eg, the electronic device 2010 of FIG. 1) Since the description of can be applied mutatis mutandis, duplicate descriptions will be omitted.

According to various embodiments, the wireless power transmitter 300 may charge the first electronic device 100 and/or the second electronic device 200 together or individually. According to an embodiment, the wireless power transmitter 300 may be a charging pad on which one or more electronic device(s) 100 or 200 may be placed. The electronic device(s) 100 and 200 may include, for example, a smart phone, a wearable electronic device, a wireless earphone charging case, and/or a wireless rechargeable battery pack, and a stylus pen. In the following description of this document, for convenience of explanation, a case in which the first electronic device 100 is a smart phone and the second electronic device 200 is a stylus pen will be mainly described, but the concept of this document is not limited thereto. does not According to an embodiment, the wireless power transmitter 300 may receive external power through a wire, convert the signal into a signal suitable for reception by the external electronic device(s) 100, 200, and radiate the power to the outside.

Referring to FIG. 4 , the wireless power transmitter 300 may include

main charging areas

310a and 310b and a mounting area 320 . Since the description of the wireless power transmitter 2000 of FIG. 2 can be applied to the wireless power transmitter 300 of FIG. 4, duplicate descriptions will be omitted.

According to various embodiments, the main charging area 310 may be formed on the top surface 301 of the wireless power transmission device 300 . According to an embodiment, the main charging area 310 may include a first main charging area 310a and a second main charging area 310b. According to an embodiment, the main charging area 310 may mean an area for the wireless power transmitter 300 to charge the first electronic device (eg, the smart phone 100, see FIG. 3). According to an embodiment, the mounting area 320 may be formed as a concave portion in a portion of the wireless power transmission apparatus 300 (eg, a portion of the case 340 of FIG. 5 ). Also, the mounting area 320 may be located between the first main charging area 310a and the second charging area 310b.

According to various embodiments, the mounting area 320 may mean an area for the wireless power transmission device 300 to charge the second electronic device (eg, the stylus pen 200). According to an embodiment, the width and/or depth of the mounting area 320 may be formed to correspond to the size of the second electronic device 200 . According to an embodiment, an auxiliary charging area 320a may be formed in a part of the mounting area 320 . For example, a second coil (eg, the second coil 346 of FIG. 5 ) for wireless power transmission may be disposed below the auxiliary charging area 320a. According to an embodiment, the second electronic device 200 may include a power reception area 220 . According to an embodiment, a receiving coil (not shown) for receiving wireless power from the auxiliary charging area 320a may be disposed at a position corresponding to the power receiving area 220 . According to an embodiment, the second electronic device 200 is accommodated in the mounting area 320 such that the power reception area 220 corresponds to the auxiliary charging area 320a, and receives wireless power from the auxiliary charging area 320a. It can be received and charged.

According to various embodiments (eg, see FIG. 3 ), in a state in which the second electronic device 200 is mounted on the mounting area 320, the first electronic device 100 may be seated on the main charging area 310. there is. According to an embodiment, the first electronic device 100 receives wireless power from the main charging area 310, and the second electronic device 200 receives wireless power from the auxiliary charging area 320a. The transmission device 300 can simultaneously charge the first electronic device 100 and the second electronic device 200 .

5 is an exploded perspective view of the wireless power transmission device of FIG. 3 . 6 is a view showing a lower surface of a main case according to various embodiments.

5 and 6, the wireless power transmitter 300 includes a main case 340, a main coil 342 disposed on the main case 340, and a main pad disposed on the main coil 342 ( 344), a lower plate 360, and an auxiliary coil 346 disposed between the lower plate 360 and the main case 340. The wireless power transmission device 300 of FIG. 5 may apply mutatis mutandis to the wireless power transmission device 300 described in FIGS. 3 and 4 .

According to various embodiments, the main case 340 may form the overall appearance of the wireless power transmission device 300 . According to one embodiment, the main coil accommodating area 341 may be formed on the upper part of the main case 340 . The main coil accommodating area 341 may be formed as a concave portion on at least a part of the upper surface of the main case 340 . According to one embodiment, the mounting area 320 may be formed on at least a part of the main case 340 . As described above, the mounting area 320 may be formed as a concave portion. According to one embodiment, the mounting area 320 may be formed as a recess deeper than the main coil accommodating area 341 . Also, according to one embodiment, the mounting area 320 may be formed adjacent to the main coil accommodating area 341 . For example, the mounting area 320 may be formed between the first main coil accommodating area 341a and the second main coil accommodating area 341b.

According to various embodiments, an indicator element 348 may be disposed on a portion of a side surface of the case 340 . According to an embodiment, the indicator element 348 provides an indication corresponding to whether the first electronic device 100 and/or the second electronic device 200 are electrically connected to the wireless power transmission device 300. can provide According to one embodiment, the indicator element 348 may operate while being electrically connected to a circuit structure (eg, the transmission module 3201 of FIG. 2 ) disposed inside the wireless power transmission device 300.

According to various embodiments, the main coil 342 may be disposed in the main coil accommodating area 341 . According to one embodiment, the shape of the main coil 342 may correspond to the shape of the main coil accommodation area 341 . For example, the first main coil 342a may correspond to the shape of the first main coil accommodating area 341a, and the second main coil 342b may correspond to the shape of the second main coil accommodating area 341b. there is. According to an embodiment, the first main coil 342a and the second main coil 342b may have the same shape or symmetrical shapes. However, this is just an example and may have different shapes. According to one embodiment, the main coil 342 is electrically connected to the power supply module (or circuit structure (eg, the transmission module 3201 of FIG. 2) inside the wireless power transmission device 300), and the first electronic Wireless power for delivery to the device 100 may be radiated.

According to various embodiments, a main pad 344 may be disposed above the main coil 342 . According to one embodiment, the main pad 344 may mean a cover for covering an upper portion of the main coil accommodating area 341 . For example, the main pad 344 is disposed to cover the upper part of the main coil accommodating region 341 while the main coil 342 is accommodated in the main coil accommodating region 341, thereby shielding the main coil 341. or protect. According to an embodiment, the upper surface of the main pad 344 may be formed of a material having high frictional force in order to prevent the first electronic device 100 from slipping. For example, the top surface of the main pad 344 may be formed of a rubber material. According to an embodiment, the main pad 344 may include first and second

main pads

344a and 344b, and their shapes are the first and second main

coil accommodating areas

341a and 341b and/or Alternatively, it may correspond to the first and second

main coils

342a and 342b.

According to various embodiments (see FIG. 6 ), the auxiliary coil 346 may be disposed in the auxiliary coil accommodation area 351 formed on the lower surface 302 of the main case 340 . The auxiliary coil accommodating area 351 may be formed below the mounting area 320 . For example, the formation position of the auxiliary charging region 320a (refer to FIG. 4 ) may be determined corresponding to the formation position of the auxiliary coil accommodating region 351 . According to one embodiment, the auxiliary coil 346 may be disposed on an upper surface of the lower cover 360 . For example, in a state in which the auxiliary coil 346 is disposed on a portion of the upper surface of the lower cover 360, the lower cover 360 is placed in the case 340 so that the auxiliary coil 346 is accommodated in the auxiliary coil accommodating area 351. It can be bonded to the bottom. According to an embodiment, the auxiliary charging area 320a (refer to FIG. 4 ) may be determined in correspondence with the arrangement position of the auxiliary coil 346 . According to one embodiment, the auxiliary coil accommodating area 351 may be located in various positions of the mounting area 320 . For example, the auxiliary coil accommodating area 351 may be formed so that the auxiliary coil 346 is disposed near the central area of the mounting area 320 . As another example, the auxiliary coil accommodating area 351 may be formed so that the auxiliary coil is disposed at an edge area of the mounting area 320 . According to one embodiment, there may be a plurality of auxiliary coil accommodating regions 351 .

However, this is only exemplary, and the auxiliary coil 346 may be disposed in the main case 340 to correspond to various positions of the mounting area 320 without the auxiliary coil accommodating area 351 . For example, in a state where the auxiliary coil 346 is disposed on the lower cover 360 , the lower cover 360 may be mounted on the main case 340 .

In the above description of this document, only the coil (eg, the main coil 342 and/or the auxiliary coil 346) has been mentioned as an intermediate member through which the wireless power transmitter 300 transmits wireless power, but is not limited thereto, and various For example, the wireless power transmitter 300 may transmit wireless power to external electronic devices via a flexible printed circuit board (FPCB). Various members can be used (for example, combined with an external electronic device to generate an induced current). However, for convenience of description, this document will focus on the case where the coil is used in a wireless power transmission device. .

According to various embodiments, the wireless power transmission device 300 may include a power supply connector 349. According to one embodiment, the power supply connector 349 may be connected to an external power source. For example, the power supply connector 349 transmits power applied from an external power source to a separate power control module (or circuit structure (eg, the transmission module 3201 of FIG. 2) inside the wireless power transmission device 300). Through this, the wireless power transmitter 300 may receive power for transmitting wireless power to the first electronic device 100 and/or the second electronic device 200. In one embodiment, According to this, the wireless power transmitter 300 may include a separate rechargeable battery (not shown), through which wireless power is transmitted to the first electronic device 100 and/or the second electronic device 200. You can also save power.

7 is a top view of a wireless power transmission device according to various embodiments. 8 is a view showing a side view of the A-A' section of FIG. 7 and the wireless power transmission device.

The wireless power transmission device 300 of FIGS. 7 and 8 may be applied to the wireless power transmission device 300 mentioned in the above-described embodiments.

Referring to FIGS. 7 and 8 , the mounting area 320 may have a depth equal to or greater than a predetermined distance. According to an embodiment, the distance from the bottom area 320-1 of the mounting area 320 to the top surface 301 of the wireless power transmission device 300 (eg, the top surface of the main pad 344) is the first distance H1. ) can be more than For example, the first distance H1 may be determined to be greater than or equal to the width of the second electronic device 200 (see FIG. 3). For this reason, in a state where the second electronic device 200 (see FIG. 3) is accommodated in the mounting area 320, the first electronic device 100 (see FIG. 3) is formed with the mounting area 320 interposed therebetween. It can be placed to cover the second main charging

areas

310a and 310b and can receive wireless power from both the first and second main charging

areas

310a and 310b.

According to various embodiments, the main coil 342 and the auxiliary coil 346 may be spaced apart from each other by a predetermined distance or more. According to an embodiment, the main coil 341 and the auxiliary coil 346 may be spaced apart from each other by a second distance H2 or more in a vertical direction (z-axis direction). For example, the second distance H2 may be determined in consideration of the size of a magnetic field or wireless power generated in the main coil 342 and/or the auxiliary coil 346, respectively. As a result, the first electronic device 100 and the second electronic device 200 can be charged separately. For example, the first electronic device 100 may be charged by wireless power radiated from the main charging area 310, and the second electronic device 200 may be charged by wireless power radiated from the auxiliary charging area 320a. can be charged by In addition, crosstalk between wireless power radiated from the main charging area 310 and wireless power radiated from the auxiliary charging area 320a may be prevented. Also, the second distance H2 may be larger than the width of the second electronic device 200 . In this case, the aforementioned first distance H1 may also be formed larger than the width of the second electronic device 200 .

Referring to FIG. 9 , the wireless

power transmission devices

500 and 700 may include a plurality of auxiliary charging areas 520-1 and 720-1. The description of the

wireless power transmitters

500 and 700 of FIG. 8 may be all or partly the same as or similar to the wireless power transmitter 300 described in FIGS. 3 to 7, so duplicate descriptions will be omitted.

According to various embodiments, each of the plurality of

auxiliary charging areas

720a and 720b may be located near the edge of the mounting area 720 . In this case, the auxiliary coil(s) (eg, the auxiliary coil 346, see FIG. 5 ) corresponding to each of the

auxiliary charging regions

720a and 720b are disposed below the

auxiliary charging regions

720a and 720b. It can be as described above. According to various embodiments, some of the

auxiliary charging areas

520a and 520c are formed near the edges of the mounting area 520, and some of the auxiliary charging areas 520b are formed near the center of the mounting area 520. can In addition, corresponding to the above-described embodiments, the second electronic device (eg, the second electronic device 200 of FIG. 3 ) according to various embodiments includes a plurality of charging areas (eg, the power receiving area 220 of FIG. 3 ). )) can be determined. Alternatively, the plurality of auxiliary charging areas correspond to the positions of the plurality of charging areas (eg, the power receiving area 220 of FIG. 3 ) formed in the second electronic device (eg, the second electronic device 200 of FIG. 3 ). The positions of s 520a, 520b, 520c, 720a, 720b may be determined. In addition to this, the location of the auxiliary charging area(s) of the wireless

power transmission devices

300, 500, and 700 may be determined in correspondence with the power reception areas 220 in various positions that may be formed in the second electronic device 200. can

10 illustrates an implementation example of a wireless power transmission device according to another embodiment.

Referring to FIG. 10 , the mounting area 920 may be arranged considering the expansion of the main charging area 910a. Since the wireless power transmitter 900 of FIG. 9 is the same or similar in whole or in part to the

wireless power transmitters

300, 500, and 700 mentioned in the above-described embodiments, duplicate descriptions will be omitted.

According to various embodiments, the wireless power transmission device 900 may include a mounting area 920 formed near an edge. For example, the mounting area 920 is formed near the edge away from the center (c) of the wireless power transmission device 900, and as a result, the contact area between the first electronic device 100 and the main charging area 910a is increased. and the charging efficiency can be improved. According to an embodiment, the main coil (eg, the main coil 342, see FIG. 4) may be disposed only in the first main charging region 910a having a larger area for manufacturing efficiency, but it is not essential, and a smaller A main coil (eg, the main coil 342, see FIG. 4) may also be disposed in the second main charging region 910b of the area.

11 is a diagram illustrating a process of inserting a second electronic device into a wireless power transmission device according to another embodiment from the side of a wireless power transmission device.

Referring to FIG. 11 , the second electronic device 400 and/or the wireless power transmitter 1100 may include a first magnet 427 and a second magnet 1107, respectively. The second electronic device 400 and the wireless power transmission device 1100 of FIG. 11 relate to the second electronic device 200 and the wireless

power transmission devices

300, 500, 700, and 900 described in the above-described embodiments. Content may be applied.

According to various embodiments, the first magnet 427 may be disposed in an area corresponding to the power reception area 420 (eg, a lower portion of the power reception area 420). According to one embodiment, the first magnet 427 may be overlapped with the charging coil 421 . For example, the first magnet 427 may be disposed above or below the charging coil 421 . As another example, the first magnet 427 may be disposed side by side adjacent to the charging coil 421 .

According to various embodiments, the second magnet 1107 may be disposed in an area corresponding to the auxiliary charging area 1120 (eg, a lower portion of the auxiliary charging area 1120). According to one embodiment, the second magnet 1107 may be overlapped with the auxiliary coil 1106 . For example, the second magnet 1107 may be disposed above or below the auxiliary coil 1106 . As another example, the second magnet 1107 may be disposed side by side adjacent to the auxiliary coil 1106 .

According to various embodiments, the first magnet 427 and the second magnet 1107 may cooperate with each other to guide a mounting posture of the second electronic device 400 within the mounting area 1120. .

In various usage environments (see (a)), the second electronic device 400 may be inserted into the mounting area 1120 in a state where the charging area 420 is not aligned with the auxiliary charging area 1120a. For example, in the second electronic device 400, in a state in which the power reception area 420 faces in a direction (eg, the x-axis direction) different from the vertical direction (z-axis direction) in which the auxiliary charging area 1120a is directed, It can be inserted into the mounting area 1120 .

According to an embodiment (see (b)), the first magnet 427 mounted on the second electronic device 400 and the second magnet 1107 mounted on the wireless power transmission device 1100 have an attractive force acting on each other. In addition, the posture of the second electronic device 400 may be changed so that the power receiving area 420 is placed in a position corresponding to the auxiliary charging area 1120a. For example, the second electronic device 400 may be rotated or translated.

12 illustrates another embodiment of a wireless power transmission device according to another embodiment from the side of the wireless power transmission device.

Referring to FIG. 12 , the wireless power transmission device 1300 may include an indicator element 1348 for displaying a charging state. According to various embodiments, the indicator element 1348 may include a first element 1348a and a second element 1348b. According to an embodiment, the first and

second elements

1348a and 1348b may emit different colors or may emit the same color. The wireless power transmission device 1300 of FIG. 11 may be applied to the wireless

power transmission devices

300, 500, 700, 900, and 1100 described in the above-described embodiments.

According to various embodiments, the wireless power transmitter 1300 may provide an indication based on the mounting state of the external electronic device(s) 100 or 600. For example, the indication may be expressed as whether to turn on or not or the color of light emitted from the light emitting element 1348 . In addition to the above examples, various indications may be provided. For example, the wireless power transmitter 1300 includes a separate sound output module (eg, the sound output module 2055 of FIG. 1), and includes an audio output module (eg, the sound output module 2055 of FIG. 1). Indications can be provided through sound. As another example, the wireless power transmission device 1300 includes a separate haptic module (eg, the haptic module 2079 of FIG. 1), and through the haptic module (eg, the haptic module 2079 of FIG. 1), the vibration is indicated. application can be provided. As another example, the wireless power transmitter 1300 may include a separate heating module (not shown) and provide an indication using a temperature difference. For the above-mentioned examples, the information on providing indication using the light emitting element 1348 to be described later may be applied. In addition, in addition to the examples mentioned above, various indications may be provided to the wireless power transmitter 1300 to reflect mounting states of the external electronic device(s) 100 or 600.

According to an embodiment, in a state in which no external electronic device is seated in the wireless power transmitter 1300, all of the light emitting elements 1348 may not be turned on. According to an embodiment (see (a)), when only the first electronic device 100 is mounted in the wireless power transmitter 1300, the first element 1348a may be turned on to provide an indication. According to an embodiment (see (b)), when only the second electronic device 600 is mounted in the wireless power transmitter 1300, the second element 1348b may be turned on to provide an indication. According to an embodiment (see (c)), when both the first and second

electronic devices

100 and 600 are mounted in the wireless power transmission device 1300, the first and

second elements

1348a and 1348b All are turned on so that indications can be provided. In the above-described embodiments, the indications related to whether or not the light emitting element 1348 provided by the wireless power transmission device 1300 is turned on have been mainly described, but in a similar way, the color of light emitted from the light emitting element 1348 or the above description It will be appreciated that indications expressed in one example (sound output module, haptic module, heating module) can be implemented.

According to various embodiments, a seating area (eg, the main charging area 310 of FIG. 3 ) and a second electronic device (eg, the first electronic device 100 of FIG. 3 ) are seated and the second electronic device (eg, the first electronic device 100 of FIG. : a case (eg, the main case 340 of FIG. 5 ) including a mounting area (eg, the mounting area 320 of FIG. 3 ) into which the second electronic device 200 of FIG. 3 is inserted; a first coil (eg, the main coil 342 of FIG. 5) disposed to correspond to the seating area; and a second coil (eg, the auxiliary coil 346 of FIG. 5) arranged to correspond to at least a portion of the mounting area, wherein the seating area is formed parallel to the first direction on the upper portion of the case, and The area is formed as a concave portion adjacent to the seating area, and the second coil is spaced apart from the first coil in a second direction different from the first direction by a predetermined distance or more. It can be.

According to various embodiments, a wireless power transmission device in which the first direction and the second direction are perpendicular to each other may be provided.

According to various embodiments, the predetermined distance may be determined in consideration of the magnitude of wireless power radiated from the first coil or the second coil.

According to various embodiments, an area of the seating area may be greater than that of the mounting area in a wireless power transmission device.

According to various embodiments, the seating area may include a first area and a second area, and the mounting area may be disposed between the first area and the second area.

According to various embodiments, the mounting area may be provided with a wireless power transmission device formed in an edge area of the case.

According to various embodiments, an indicator element (eg, the indicator element 348 of FIG. 5 ) is further included, wherein the indicator element is based on a state of charge of at least one of the first electronic device and the second electronic device. A wireless power transmission device that operates in the same manner may be provided.

According to various embodiments, a wireless power transmission device further including a magnet disposed adjacent to the second coil (eg, the second magnet 1107 of FIG. 11 ) may be provided.

According to various embodiments, the second coil may include a plurality of coils, and each of the plurality of coils may be disposed below an edge of the mounting area.

According to various embodiments, a wireless power transmission device may further include an upper pad (eg, the main pad 344 of FIG. 5 ), wherein the upper pad is disposed to cover the first coil.

According to various embodiments, at least a portion of the upper pad may be provided in a wireless power transmission device formed of a rubber material.

According to various embodiments, the depth of the mounting area may be greater than the width of the second electronic device in the wireless power transmission device.

According to various embodiments, a first accommodating area (eg, the first main accommodating area 341a of FIG. 5 ) and a second accommodating area formed parallel to the first accommodating area (eg, the second main accommodating area 341a of FIG. 5 ) 341b)) and a concave area formed between the first accommodating area and the second accommodating area (eg, the mounting area 320 of FIG. 5); a first coil disposed in the first accommodation area (eg, the first main coil 342a of FIG. 5 ); a second coil disposed in the second accommodation area (eg, the second main coil 342b of FIG. 5 ); and an auxiliary coil (for example, the auxiliary coil 346 of FIG. 5) facing the concave region, and a distance between the auxiliary coil and the first coil or a vertical distance between the auxiliary coil and the second coil. A wireless power transmission device having a distance greater than or equal to a predetermined distance may be provided.

According to various embodiments, the predetermined distance is determined in consideration of the magnitude of wireless power radiated from at least one of the first coil, the second coil, and the auxiliary coil. A wireless power transmission device may be provided.

According to various embodiments, a wireless power transmitter may further include a magnet (eg, the second magnet 1107 of FIG. 11 ), wherein the magnet is disposed adjacent to the auxiliary coil.

According to various embodiments, a first pad (eg, the first main pad 344a of FIG. 5 ) disposed to cover the first coil; and a second pad (eg, the second main pad 344b of FIG. 5) disposed to cover the second coil.

According to various embodiments, at least one or more of the first pad or the second pad may be provided with a wireless power transmission device in which an upper surface is formed of a rubber material.

According to various embodiments, an indicator element (eg, the indicator element 348 of FIG. 5) disposed on a side surface of the case may be further included, and the indicator element may include the first coil, the second coil, or the auxiliary coil. A wireless power transmission device that operates based on an operating state of at least one of the coils may be provided.

According to various embodiments, a wireless power transmission device may be provided in which a plurality of auxiliary coils are formed, and at least some of the plurality of auxiliary coils are disposed near an edge of the concave area.

According to various embodiments, an area of at least one of the first accommodating area and the second accommodating area may be greater than that of the concave area.

In the above detailed description of this document, specific embodiments have been described, but it will be apparent to those skilled in the art that various modifications are possible without departing from the scope of the present invention.

Claims

In the wireless power transmission device,

a case including a seating area for mounting a first electronic device and a mounting area for inserting a second electronic device;

a first coil disposed to correspond to the seating area;

A second coil disposed to correspond to at least a portion of the mounting area; includes,

The seating area is formed parallel to a first direction on the upper portion of the case,

The mounting area is formed as a concave portion adjacent to the seating area,

The second coil is disposed apart from the first coil by a predetermined distance or more in a second direction different from the first direction.
According to claim 1,

The first direction and the second direction are perpendicular to each other wireless power transmission device.
According to claim 1,

The predetermined distance is determined in consideration of the magnitude of wireless power radiated from the first coil or the second coil.
According to claim 1,

The width of the seating area is greater than the width of the mounting area wireless power transmission device.
According to claim 1,

The seating area includes a first area and a second area,

The mounting area is disposed between the first area and the second area.
According to claim 1,

The mounting area is a wireless power transmission device formed in an edge area of the case.
According to claim 1,

It further includes; an indicator element;

The indicator element operates based on a state of charge of at least one of the first electronic device and the second electronic device.
According to claim 1,

A magnet disposed adjacent to the second coil; further comprising

Wireless power transmission device.
According to claim 1,

The second coil includes a plurality of coils,

The plurality of coils are disposed below the edge of the mounting area, respectively.

Wireless power transmission device.
According to claim 1,

An upper pad; further comprising,

The upper pad is disposed to cover the first coil.
According to claim 10,

The upper pad is a wireless power transmission device at least partially formed of a rubber material.
According to claim 1,

A depth of the mounting area is greater than a width of the second electronic device.
According to claim 1,

The seating area includes a first accommodating area and a second accommodating area formed parallel to the first accommodating area.
According to claim 13,

The first coil includes a coil disposed in the first accommodating area and a coil disposed in the second accommodating area.
According to claim 1,

Further comprising an upper pad,

The upper pad may include a first pad disposed to cover the coil disposed in the first accommodating area; and a second pad disposed to cover the coil disposed in the second accommodating area.