Electronic device aligned with charging device by using magnet, operation method therefor, and recording medium

Abstract

Disclosed are an electronic device aligned with a charging device by using a magnet, and an operation method therefor. The electronic device may comprise one or more processors, a memory including one or more storage media for storing instructions, and a magnetic sensor. The instructions, when executed individually or collectively by the one or more processors, may cause: receiving a request for wireless charging; detecting a magnetic field associated with a cover device through the magnetic sensor; when the detected magnetic field corresponds to a preconfigured criterion, performing wireless charging using a first wireless charging profile; and when the detected magnetic field does not correspond to the preconfigured criterion, performing wireless charging using a second wireless charging profile. The magnetic field detected through the magnetic sensor may be generated by an annular magnet member disposed on the cover device and a magnetic shielding material which is disposed on one surface of the magnet member and has a gap region formed in a partial region thereof. In addition, various embodiments that can be understood through the present disclosure are also possible.

Description

Electronic device aligned with a charging device using a magnet, method of operation thereof, and recording medium

[0001] Embodiments of the present disclosure relate to an electronic device aligned with a charging device using a magnet, a method of operating the same, and a recording medium.

[0002] Wireless power transmission technology is a method of transmitting power using an electromagnetic field induced in a coil. A wireless power transmission device generates an electromagnetic field by applying a current to a transmitting coil, and an induced electromotive force is formed in a receiving coil of a wireless power receiving device by the generated electromagnetic field, thereby allowing power to be transmitted wirelessly.

[0003] Recently, with the release of the magnetic power profile (MPP), a magnet-based wireless charging technology in the wireless charging standard Qi 2.0, technology that aligns the transmitting coil of a wireless power transmission device and the receiving coil of a wireless power reception device using magnets and performs wireless charging is attracting attention.

[0004] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art related to the present disclosure.

[0005] According to one embodiment, an electronic device may include one or more processors, a memory including one or more storage media storing instructions, and a magnetic sensor. The instructions, when individually or collectively executed by the one or more processors, may receive a request for wireless charging, detect a magnetic field associated with a cover device through the magnetic sensor, and perform the wireless charging using a first wireless charging profile when the detected magnetic field corresponds to a preset criterion, and perform the wireless charging using a second wireless charging profile when the detected magnetic field does not correspond to the preset criterion. The magnetic field detected by the magnetic sensor may be generated by an annular magnet member disposed on the cover device and a magnetic shielding material disposed on one surface of the magnet member and having a gap region formed in a portion of the magnetic shielding material.

[0006] According to one embodiment, the cover device may include a housing having a first side formed to be coupled with an electronic device and a second side opposite the first side. The cover device may include an annular magnetic member disposed in the housing and surrounding at least a portion of an induction coil provided in the electronic device when the first side is coupled to the electronic device. The cover device may include a magnetic shielding material having a shape corresponding to the magnetic member and formed to cover a portion of the magnetic member. The magnetic shielding material and the magnetic member may be configured to generate a magnetic field deviation by utilizing a gap area formed by the magnetic shielding material covering a portion of one side of the magnetic member and not covering the other portion, so that a magnetic field generated by the magnetic field deviation is detected by a magnetic sensor of the electronic device.

[0007] According to one embodiment, a method of operating an electronic device may determine whether a wireless charger supports a first wireless charging standard through packet exchange with the wireless charger when the electronic device is in contact with the wireless charger. The method of operating the electronic device may obtain magnetic field information through a magnetic sensor arranged in an area of ​​the electronic device. The method of operating the electronic device may determine whether to charge the electronic device through the first wireless charging standard by using the obtained magnetic field information and a preset reference value for detecting a cover device having a magnetic member. The magnetic field information obtained through the magnetic sensor may be formed by a cover device in which a magnet corresponding to an area closest to the magnetic sensor among a plurality of magnets constituting the magnetic member is identified as a molded magnet, and at least one of a shape, a polarity, a strength grade, or a magnetization structure of the identified molded magnet is changed.

[0008] According to one embodiment, instructions stored on a non-transitory computer-readable recording medium, when executed by one or more processors, can cause the electronic device to perform operations of a method of operating the electronic device.

[0009] In connection with the description of the drawings, the same or similar reference numerals may be used for identical or similar components.

[0010] FIG. 1 is a block diagram of an electronic device within a network environment according to various embodiments.

[0011] FIG. 2 is a block diagram of a wireless power transmission system according to one embodiment.

[0012] FIG. 3 is a circuit diagram of a wireless power transmission device and a wireless power reception device according to one embodiment.

[0013] FIG. 4 is a diagram showing the structure of a wireless power transmission system for applying a specific type of wireless charging technology according to one embodiment.

[0014] FIG. 5 is a diagram showing simulation results comparing the magnetic field distribution when there is a magnetic shielding material and when there is no magnetic shielding material according to one embodiment.

[0015] Fig. 6 is a drawing for explaining the structure of a cover device according to one embodiment.

[0016] FIGS. 7A and 7B are diagrams showing the structure of an electronic device to which a cover device is attached according to one embodiment.

[0017] FIG. 8 is a conceptual diagram illustrating a method for detecting a cover device having a magnetic member performed by an electronic device according to one embodiment.

[0018] FIGS. 9A to 9C are drawings showing the structure of a magnetic member included in a cover device according to one embodiment.

[0019] FIG. 10 is a drawing showing a method for forming a magnet member included in a cover device according to one embodiment.

[0020] FIG. 11 is a flowchart illustrating a method for determining whether a magnetic member included in a cover device according to one embodiment is genuine.

[0021] FIG. 12 is a flowchart illustrating a detection method of a cover device having a magnetic member according to one embodiment.

[0022] Fig. 13 is a drawing showing a method for determining whether or not authentication is performed through the formation of a magnetizing structure of a molded magnet according to one embodiment.

[0023] FIG. 14 is a drawing showing a magnetic field distribution in a case where the magnetization structure of a molded magnet among a plurality of magnets constituting a magnet member included in a cover device according to one embodiment is changed from a top-bottom magnetization type to a radial magnetization type, unlike other magnets.

[0024] Fig. 15 is a drawing showing a method for determining whether authentication is possible through a change in the grade of a molded magnet according to one embodiment.

[0025] Fig. 16 is a drawing showing a method for determining cover through a change in the gap area of ​​a magnetic shielding material according to one embodiment.

[0026] Fig. 17 is a drawing showing a cover determination method according to the structure of a cover device according to one embodiment.

[0027] FIGS. 18A to 18E are diagrams showing magnetic field strengths obtained according to the structure of a cover device according to one embodiment.

[0028] Hereinafter, embodiments will be described in detail with reference to the attached drawings. However, the present disclosure may be implemented in various different forms and is not limited to the embodiments described herein. In the description with reference to the attached drawings, identical components will be assigned the same reference numerals regardless of the drawing numbers, and redundant descriptions thereof will be omitted.

[0029] FIG. 1 is a block diagram of an electronic device (101) within a network environment (100) according to various embodiments. Referring to FIG. 1, in the network environment (100), the electronic device (101) may communicate with the electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of the electronic device (104) or the server (108) via a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In some embodiments, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0030] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store result data in a non-volatile memory (134). The processor (120) may also be implemented as a system on chip (SoC) or an integrated circuit (IC) that performs processing. The processor (120) may include one or more processors, and the operations of the electronic device (101) described in the present disclosure may be performed by a single processor or by a combination of multiple processors. When the operations of the electronic device (101) are performed by a combination of multiple processors, any one processor included in the combination of processors may perform some of the operations of the electronic device (101). For example, the processor (120) may correspond to multiple processors that collectively perform a plurality of operations by dividing them among the processors.

[0031] According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or an auxiliary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (121). For example, when the electronic device (101) includes the main processor (121) and the auxiliary processor (123), the auxiliary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a given function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0032] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0033] The memory (130) can store various data used by at least one component (e.g., the processor (120) or the sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., the program (140)) and input data or output data for commands related thereto. The memory (130) can include a volatile memory (132) or a non-volatile memory (134). The memory (130) can store at least one instruction executable by the processor (120). The memory (130) can include one or more memories, and instructions for controlling the processor (120) to perform operations of the electronic device (101) described in the present disclosure can be stored in one memory or can be divided and stored in multiple memories.

[0034] The program (140) may be stored as software in the memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0035] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0036] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0037] The display module (160) can visually provide information to an external device (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector, and a control circuit for controlling the device. According to one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch. The display module (160) may be implemented with an illustrative foldable structure and / or a rollable structure. For example, the size of the display screen of the display module (160) may be reduced when folded, and may be expanded when unfolded.

[0038] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0039] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0040] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)). In one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0041] The connection terminal (178) may include a connector that allows the electronic device (101) to be physically connected to an external electronic device (e.g., the electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0042] A haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. In one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0043] The camera module (180) can capture still images and videos. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0044] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented, for example, as at least a part of a power management integrated circuit (PMIC).

[0045] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0046] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., a Wi-Fi communication module, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0047] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional multiple input multiple output (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0048] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (197) may include a plurality of antennas (e.g., 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 (198) or the second network (199), may be selected from the plurality of antennas by, for example, the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0049] According to various embodiments, the antenna module (197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band.

[0050] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0051] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0052] Electronic devices according to various embodiments disclosed in this disclosure may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to embodiments of this disclosure are not limited to the aforementioned devices.

[0053] The various embodiments of the present disclosure and the terminology used therein are not intended to limit the technical features described in the present disclosure 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, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In the present disclosure, each of the phrases "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 "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among the phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0054] The term "module" used in various embodiments of the present disclosure may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0055] Various embodiments of the present disclosure may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101) of FIG. 1). For example, a processor (e.g., a processor (120)) of a machine (e.g., an electronic device (101)) may call at least one command among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0056] According to one embodiment, the method according to various embodiments disclosed in the present disclosure may be provided as a computer program product. The computer program product may be traded between sellers and buyers as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory; CD-ROM) or may be provided through an application store (e.g., Play Store). TM ) or directly between two user devices (e.g., smart phones), online distribution (e.g., downloading or uploading). In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0057] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and arranged in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

[0058] According to one embodiment, the electronic device (101) may include one or more processors (120), a memory (130) including one or more storage media for storing instructions, and a magnetic sensor. The instructions, when individually or collectively executed by the one or more processors (120), may cause the device to receive a request for wireless charging, detect a magnetic field associated with a cover device through the magnetic sensor, and perform wireless charging using a first wireless charging profile when the detected magnetic field corresponds to a preset criterion, and perform wireless charging using a second wireless charging profile when the detected magnetic field does not correspond to the preset criterion.

[0059] According to one embodiment, a magnetic field detected by a magnetic sensor may be generated by a magnetic shielding material having a gap region formed in a portion of an annular magnetic member disposed on a cover device and a surface of the magnetic member.

[0060] According to one embodiment, the instructions, when executed individually or collectively by one or more processors (120), may cause, based at least in part on the request, to identify a wireless power transmission device attached via a magnetic member and receive information from the wireless power transmission device, including whether it supports at least one of a first wireless charging profile or a second wireless charging profile.

[0061] According to one embodiment, the instructions, when individually or collectively executed by one or more processors (120), may cause the electronic device (101) to set the wireless charging profile to a first wireless charging profile when a sensed magnetic field corresponds to a preset criterion, and, based at least in part on the request, cause the electronic device (101) to wirelessly receive power using the first wireless charging profile from a wireless power transmission device that supports the first wireless charging profile and the second wireless charging profile.

[0062] In one embodiment, the first wireless charging profile may correspond to a magnetic power profile, and the second wireless charging profile may correspond to an extended power profile.

[0063] According to one embodiment, the electronic device (101) may further include an induction coil arranged to be surrounded by a magnetic member when coupled with the cover device.

[0064] According to one embodiment, the instructions, when individually or collectively executed by one or more processors (120), may cause the electronic device (101) to determine that the electronic device (101) is coupled with the cover device and to change the impedance associated with the induction coil from a first impedance to a second impedance when the sensed magnetic field corresponds to a preset criterion.

[0065] According to one embodiment, the instructions, when executed individually or collectively by one or more processors (120), may cause the electronic device (101) to determine that the electronic device (101) is coupled with the cover device if the sensed magnetic field satisfies a preset criterion for a specified period of time.

[0066] According to one embodiment, the commands, when individually or collectively executed by one or more processors (120), may cause a user interface to be output indicating the presence of an external object other than the cover device if the detected magnetic field does not meet a preset criterion.

[0067] According to one embodiment, the electronic device (101) may further include an additional magnetic sensor.

[0068] According to one embodiment, the instructions, when individually or collectively executed by one or more processors (120), may cause the electronic device (101) to determine that it is coupled with the cover device if a magnetic field detected by the magnetic sensor satisfies a first preset criterion and a magnetic field detected by the additional magnetic sensor satisfies a second preset criterion.

[0069]

[0070] FIG. 2 is a block diagram of a wireless power transmission system according to one embodiment.

[0071] Referring to FIG. 2, the wireless power transmission system (200) may be composed of a wireless power transmission device (210) and a wireless power reception device (220). More specifically, the wireless power transmission system (200) may supply an alternating current to a transmission coil included in the wireless power transmission device (210) through an external power source applied to the wireless power transmission device (210). The alternating current supplied in this manner may generate a magnetic field in the wireless power transmission device (210).

[0072] The wireless power receiving device (220) of the wireless power transmission system (200) can perform wireless charging by generating an alternating current in a receiving coil included in the wireless power receiving device (220) using a magnetic field generated in the wireless power transmitting device (210).

[0073] At this time, the wireless power transmission device (210) may be, for example, a wireless charging pad, a wireless charging dock, or a wireless charging puck, but the examples of such wireless power transmission devices (210) are only one example and are not limited to the above examples.

[0074] In addition, the wireless power receiving device (220) may be, for example, a portable electronic device such as a smartphone, a smartwatch, a tablet computer, or a laptop computer; however, examples of such wireless power receiving devices (220) are also just one example and are not limited to the above examples.

[0075]

[0076] FIG. 3 is a circuit diagram of a wireless power transmission device and a wireless power reception device according to one embodiment.

[0077] According to one embodiment, referring to FIG. 3, the wireless power transmission system (300) may be composed of a wireless charging circuit portion of a wireless power transmission device (310) and a circuit portion of a wireless power reception device (320). According to one embodiment, the wireless power transmission device (310) may perform wireless charging by controlling components of a circuit for wireless power transmission through a controller (311). More specifically, the controller (311) controls an inverter (312) while wireless charging is performed to generate an AC current I TX can be generated, and the AC current generated in this way I TX A magnetic field can be generated in the transmitting coil (313) of the wireless power transmitting device (310). The capacitor (314) of the wireless power transmitting device (310) can form a resonant circuit together with the transmitting coil (313) to transmit maximum power at a specific frequency.

[0078] According to one embodiment, the wireless power receiving device (320) can perform wireless charging by controlling the components of the circuit for wireless power reception through the controller (321). While wireless charging is performed, an AC current I is generated in the receiving coil (322) of the wireless power receiving device (320) by the magnetic field generated in the wireless power transmitting device (310). RX can be generated. The controller (321) uses the rectifier (323) of the wireless power receiving device (320) to generate AC power (V RX_AC ,I RX ) is a rectified DC power supply (V RX_DC ) can be converted into DC power (V) converted in this way. RX_DC ) can be used to charge the battery of the wireless power receiving device (320).

[0079] According to one embodiment, the capacitor (324) of the wireless power receiving device (320) may form a resonant circuit together with the receiving coil (322) to receive maximum power at a specific frequency. The capacitor (325) of the wireless power receiving device (320) may be used to set the resonant frequency of the resonant circuit, and may operate together with the capacitor (324) to adjust the resonant characteristics of the resonant circuit, thereby maintaining maximum energy transfer efficiency.

[0080] According to one embodiment, the controller (321) of the wireless power receiving device (320) can control the switch (326) to receive power in a frequency band for a wireless charging standard (e.g., Qi specification) in a preset manner.

[0081] According to one embodiment, the wireless power transmitter (310) and the wireless power receiver (320) may include a communication circuit (327) for exchanging data between them. The wireless power receiver (320) may transmit information related to transmission power control, the amount of received power, or the status of the electronic device (e.g., battery status, temperature status, or abnormality detection) to the wireless power transmitter (310) through the communication circuit (327), and the wireless power transmitter (310) may adjust the required power output based on the information transmitted in this manner. For example, the battery status may include information on whether the battery is fully charged and / or abnormal conditions such as overcurrent and overvoltage.

[0082]

[0083] FIG. 4 is a diagram showing the structure of a wireless power transmission system for applying a specific type of wireless charging technology according to one embodiment.

[0084] The existing wireless charging standard, Qi, defines the baseline power profile (BPP) and the extended power profile (EPP). For example, the BPP wireless charging technology relates to a wireless power transfer system that supports power transfer of up to 5W, and the EPP wireless charging technology relates to a wireless power transfer system that supports power transfer in the range of more than 5W and less than 30W.

[0085] The recently proposed wireless charging standard, Qi 2.0, defines a magnetic power profile (MPP). This MPP wireless charging technology can provide a method for improving charging efficiency by aligning the transmitting coil of a wireless power transmitter and the receiving coil of a wireless power receiver using magnets. In this MPP method, the magnet can physically assist in the alignment between the transmitting coil and the receiving coil. For example, the magnet for alignment with the transmitting coil (hereinafter, referred to as the alignment magnet) can be provided within the wireless power receiver. Alternatively, the alignment magnet can be included in a cover device (e.g., an accessory cover, a protective cover, a magnetic cover, a keyboard cover, or a storage case) so that the cover device is coupled or attached to the wireless power receiver. When the wireless power receiver detects that the cover device including the alignment magnet is coupled to the wireless power receiver, the wireless power receiver can be configured to perform wireless charging using the magnetic power profile.

[0086] Referring to FIG. 4, a wireless power transmission system (400) to which MPP wireless charging technology is applied may include a wireless power transmission device (e.g., wireless charger (410)), a wireless power reception device (e.g., electronic device (420)), and a cover device (430).

[0087] According to one embodiment, a cover device (430) including a magnetic member (431) may be fastened to an electronic device (420). For example, one side of the cover device (430) may be formed in a form that can be physically fastened while covering the entire rear surface of the electronic device (420), and the opposite side may be in contact with the wireless charger (410). Alternatively, the cover device (430) may be formed in a form smaller than the rear surface of the electronic device (420) and may be attached to a portion of the rear surface of the electronic device (420) by an adhesive member or magnetic force. However, the shape of the cover device (430) is merely an example and is not limited to the above example.

[0088] Through this structure, when wireless charging is performed, the magnetic member (431) of the cover device (430) and the magnetic member (411) included in the wireless charger (410) are combined, so that the transmitting coil (412) of the wireless charger (410) and the receiving coil (421) of the electronic device (420) can be stably fixed and aligned. At this time, the receiving shield (Rx shield) (422) arranged on one surface of the receiving coil (421) of the electronic device (420) can limit the magnetic field generated by the receiving coil (421) from spreading into the interior of the electronic device (420), thereby reducing electromagnetic interference and improving wireless charging efficiency.

[0089] According to one embodiment, the cover device (430) may include a magnetic member (431) formed in a loop or annular shape that surrounds at least a portion of a receiving coil (421) provided in the electronic device (420) when coupled with the electronic device (420). As an example, the magnetic member (431) may be formed in an annular shape by connecting a plurality of arch-shaped (arc-shaped) segmented magnets.

[0090] According to one embodiment, the cover device (430) may have a magnetic shielding material (e.g., steel plate cold commercial (SPCC), DC shield) (432) disposed on one surface of the magnet member (431). The magnetic shielding material (432) may limit a magnetic field generated by the magnet member (431) to prevent the magnetic field from affecting internal components of the electronic device (420) (e.g., a sensor for recognizing a stylus pen (423), a camera module (180), or an antenna module (197)). For example, the magnetic shielding material (432) may be disposed so that heat that may be generated during the performance of a function of the electronic device (420) (e.g., a wireless charging function) is not concentrated in a specific area but rather can be lowered more quickly.

[0091] In one embodiment, the magnetic shielding material (432) may be formed of a soft magnetic material. In one embodiment, the magnetic shielding material (432) may be formed of at least one material selected from the group consisting of electrical steel, ferrite, amorphous, and sentust. However, the types of materials of the magnetic shielding material (432) are merely examples and are not limited to the above examples.

[0092] According to one embodiment, when one side of the cover device (430) has a curved or irregularly curved shape, the magnetic member (431) and / or the magnetic shielding material (432) may be set to be curved or have a different thickness in a specific area according to the curved shape of the one side of the cover device (430).

[0093] According to one embodiment, the cover device (430) may include a magnetic member (431) in which a plurality of arch-shaped segmented magnets are arranged in an array form and a magnetic shielding material (432) arranged on one surface of the magnetic member (431).

[0094] According to one embodiment, the cover device (430) may be implemented to generate a magnetic field deviation in a certain area by using a magnet member (431) and a magnetic shielding material (432). In this case, the magnetic field deviation may mean that the strength or direction of the magnetic field within a certain area is not constant but changes through shaping of at least one specific area among the magnet member (431) and the magnetic shielding material (432).

[0095] According to one embodiment, the magnet member (431) is formed by segmenting a segment magnet corresponding to an area closest to the magnetic sensor among a plurality of arch-shaped segment magnets into a molded magnet, and at least one of the shape, polarity, strength, grade, or magnetization structure of the divided molded magnet can be changed.

[0096] According to one embodiment, the magnetic shielding material (432) may form a gap region in the region furthest from the magnetic sensor of the electronic device (101) to which the cover device (430) is fastened.

[0097] According to one embodiment, the magnetic shielding material (432) disposed on one surface of the magnet member (431) may be formed to have an area different from the area of ​​the magnet member (431).

[0098] According to one embodiment, the magnetic shielding material (432) disposed on one side and side of the magnet member (431) can be formed to cover the entire one side and side of the magnet member (431).

[0099] According to one embodiment, the magnetic shielding material (432) disposed on one side and a side surface of the magnet member (431) can be formed to surround a side surface having the same height as one side of the magnet member (431).

[0100] According to one embodiment, the magnetic shielding material (432) disposed on one side and a side surface of the magnet member (431) may be formed to surround a side surface having a different height from one side of the magnet member (431).

[0101] According to one embodiment, the cover device (430) may include a housing having a first side formed to be coupled with the electronic device (420) and a second side opposite the first side. The cover device (430) may include an annular magnetic member (431) disposed in the housing and surrounding at least a portion of an induction coil provided in the electronic device (420) when the first side is coupled to the electronic device (420). The cover device (430) may include a magnetic shielding material (432) having a shape corresponding to the magnetic member (431) and formed to cover a portion of the magnetic member (431).

[0102] According to one embodiment, the magnetic shielding material (432) and the magnet member (431) can be configured to generate a magnetic field deviation by utilizing a gap area formed by the magnetic shielding material (432) covering a portion of one side of the magnet member (431) and not covering the other portion, so that a magnetic field resulting from the magnetic field deviation is detected by a magnetic sensor of the electronic device (420).

[0103] According to one embodiment, a gap region may be formed between a central portion defining a radius of curvature of the magnet member (431) and the magnetic sensor.

[0104] In one embodiment, the magnet member (431) may be formed by connecting a plurality of arcuate segment magnets. The plurality of arcuate segment magnets may include first segment magnets having a first polarity arrangement corresponding at least partially to one side and providing a tensile force to attach to another annular magnet member (431) disposed in the wireless power transmission device when the second side of the housing is coupled to the wireless power transmission device. The plurality of arcuate segment magnets may include at least one second segment magnet having a second polarity arrangement disposed adjacent to the gap region and providing at least a portion of a magnetic field.

[0105] According to one embodiment, the magnetic shielding material (432) may further include a first side region covering at least a portion of an outer surface of the magnet member (431) and a second side region covering at least a portion of an inner surface. The length of the first side region and the length of the second side region may be distinguished from each other.

[0106] In one embodiment, the gap region may include a second side region without a first side region.

[0107] In one embodiment, the magnetic shielding material (432) and the magnet member (431) may form an additional gap region. The sizes of the gap region and the additional gap region may be distinguished from each other.

[0108]

[0109] FIG. 5 is a diagram showing simulation results comparing the magnetic field distribution when there is a magnetic shielding material and when there is no magnetic shielding material according to one embodiment.

[0110] When a magnetic shielding material (e.g., SPCC or DC shield) is provided in a cover device (e.g., cover device (430) of FIG. 4), the magnetic field can be limited through the magnetic shielding material to minimize magnetic interference caused by the magnetic field to internal components (e.g., stylus pen recognition sensor (423) of FIG. 4) of an electronic device (e.g., electronic device (101) of FIG. 1, electronic device (420) of FIG. 4).

[0111] In one embodiment, SPCC serves to shield DC magnetic fields, and its high permeability can change the magnetic field path, minimizing magnetic field leakage. Additionally, in MPP wireless charging technology, SPCC can increase tensile strength due to its high saturation magnetic flux density.

[0112] Referring to FIG. 5, the maximum magnetic field strength and average magnetic field strength measured by the stylus pen recognition sensor of the electronic device when SPCC is present are smaller than the maximum magnetic field strength and average magnetic field strength when SPCC is not present, which indicates that the magnetic field is reduced through SPCC.

[0113] Additionally, when the cover device has SPCC, the physical fixing force generated by the magnetic coupling between the electronic device and the wireless charger (e.g., the wireless charger (410) of FIG. 4) through the SPCC can be increased. Referring to FIG. 5, the tensile force between the electronic device and the wireless charger when the SPCC is present is greater than the tensile force when the SPCC is not present, indicating that the electronic device and the wireless charger are stably fixed through the SPCC, thereby increasing the charging efficiency.

[0114]

[0115] Fig. 6 is a drawing for explaining the structure of a cover device according to one embodiment.

[0116] According to one embodiment, a magnetic member (e.g., a magnetic member (431) of FIG. 4) of a cover device (e.g., a cover device (430) of FIG. 4) may be positioned such that a lower surface thereof is attached to a first surface of a cover device housing, and a lower surface thereof is in contact with a magnetic shielding material (e.g., a magnetic shielding material (432) of FIG. 4)) of an upper surface thereof. For example, the first surface of the cover device housing may mean an inner surface into which an electronic device (e.g., an electronic device (101) of FIG. 1, an electronic device (420) of FIG. 4) is inserted.

[0117] In one embodiment, the magnetic shielding material of the cover device may be positioned such that its upper surface is attached to the second surface of the cover device housing and its lower surface is in contact with the upper surface of the magnet member. For example, the second surface of the cover device housing may refer to an externally exposed surface.

[0118] Such magnetic shielding materials can improve wireless charging efficiency by limiting the magnetic field generated from the magnet element from spreading inside the electronic device and directing it to flow in the desired direction.

[0119] At this time, the magnetic shielding material placed in one area of ​​the magnet member can be implemented in various forms. For example, referring to the drawing (610) of FIG. 6, the magnetic shielding material (432) can be implemented in a form having the same area as the upper surface area of ​​the magnet member (431). In this case, since the magnetic shielding material (432) covers the entire upper surface of the magnet member (431), the magnetic field emission in the direction of the upper surface of the magnet member (431) can be reduced.

[0120] Referring to the drawing (620) of FIG. 6, the magnetic shielding material (432) can be implemented in a form having an area smaller than the upper surface area of ​​the magnet member (431). In this case, the magnetic shielding material (432) can reduce the magnetic field emission in a specific area of ​​the upper surface of the magnet member (431).

[0121] Referring to the drawing (630) of FIG. 6, the magnetic shielding material (432) can be implemented in a form having a larger area than the upper surface area of ​​the magnet member (431). In this case, the magnetic field emission can be reduced for the surrounding area including the magnet member (431) through the magnetic shielding material (432).

[0122] Referring to the drawing (640) of FIG. 6, the magnetic shielding material (432) can be implemented in a form (640) that covers the entirety of both sides of the magnet member (431). In this case, the magnetic shielding material (432) can reduce the magnetic field emission generated in all directions of the magnet member (431).

[0123] Referring to the drawing (650) of FIG. 6, the magnetic shielding material (432) may be implemented to wrap part of both sides of the magnet member (431) in an open form. Alternatively, as shown in the drawing (660) of FIG. 6, the magnetic shielding material (432) may be implemented to wrap part of the outer side of the magnet member (431), or as shown in the drawing (670), the magnetic shielding material (432) may be implemented to wrap part of the inner side of the magnet member (431). In this case, the magnetic shielding material (432) may be used to limit or guide the emission of a magnetic field in a specific direction.

[0124] However, the implementation form of such a magnetic shielding material (432) is only one example and is not limited to the above example.

[0125]

[0126] FIGS. 7A and 7B are diagrams showing the structure of an electronic device to which a cover device is attached according to one embodiment.

[0127] Referring to FIG. 7A, in the fastening structure (730) of the cover device (710) and the electronic device (720), the electronic device (720) can obtain magnetic field information through a magnetic sensor (721) arranged in one area, and can detect that the cover device (710) equipped with an alignment magnet for using the MPP type wireless charging technology is fastened using the obtained magnetic field information. At this time, the magnetic sensor (721) may be a geomagnetic sensor (magnetometer) or a Hall IC sensor, but the type of the magnetic sensor (721) is only one example and is not limited to the above example.

[0128] More specifically, in the fastening structure (730) of the cover device (710) and the electronic device (720), the magnetic field strength for each direction of the magnetic field obtained through the magnetic sensor (721) and the sum of the magnetic field strengths of the individual directions may vary depending on the shape, polarity, strength, grade or magnetization structure of the alignment magnet, i.e., the magnetic member (711) included in the cover device (710).

[0129] The electronic device (720) can perform wireless charging using the MPP wireless charging technology by detecting whether the cover device (710) equipped with the magnet member (711) is fastened using the magnetic field information obtained through the magnetic sensor (721), i.e., unique information according to the formation of the magnetic field.

[0130] According to one embodiment, when the electronic device (720) detects a magnetic field through the magnetic sensor (721) (e.g., when a magnetic field is detected in which a sensing value detected by the magnetic sensor (721) satisfies a preset criterion), the electronic device (720) may set the wireless charging profile of the electronic device (720) to a magnetic power profile. In the present disclosure, the expression “when a magnetic field is detected” is not intended to be limited to a specific point in time, and may include the meaning of performing a specified operation based at least in part on the condition that a magnetic field is detected or on a determination that a magnetic field is detected.

[0131] For example, if a magnetic field sensed through a magnetic sensor (721) satisfies a preset criterion (e.g., the strength of a magnetic force received from a specific direction exceeds a threshold value), the electronic device (720) may determine that the cover device (710) is coupled and change the wireless charging profile of the electronic device (720) to a magnetic power profile. When the electronic device (720) is attached (or placed) to a wireless power transmission device (e.g., the wireless power transmission device (210) of FIG. 2) through the magnetic member (711), the electronic device (720) may wirelessly receive power from the wireless power transmission device based at least in part on the magnetic power profile.

[0132] In one embodiment, the electronic device (720) can determine whether a magnetic field satisfying a preset criterion is maintained for a specified period of time. In one embodiment, the electronic device (720) can compare the sensed value detected by the magnetic sensor (721) with the preset criterion at least twice and determine whether the sensed magnetic field satisfies the preset criterion a specified number of times or more. For example, the electronic device (720) can determine that the cover device (710) is engaged if the sensed magnetic field satisfies the preset criterion for a specified period of time and / or a specified number of times.

[0133] According to one embodiment, the electronic device (720) can detect the cover device (710) through a plurality of magnetic sensors. For example, a first reference corresponding to a first magnetic sensor among the plurality of magnetic sensors and a second reference corresponding to a second magnetic sensor can be set. For example, the electronic device (720) can determine that a specific type of cover device (710) is coupled if the magnetic fields detected by each of the first magnetic sensor and the second magnetic sensor satisfy both the first reference and the second reference, respectively.

[0134] According to one embodiment, the magnetic sensor (721) of the electronic device (720) may support not only the function of detecting the cover device (710) but also the function of detecting other external objects or detecting movement or deformation of the electronic device (720). For example, the magnetic sensor (721) may be provided in a first housing among a plurality of housing parts provided in the electronic device (720) and may be used to detect that the first housing is converted into a folding or unfolding state with respect to the second housing by detecting another magnet provided in the second housing.

[0135] According to one embodiment, the electronic device (720) may receive information related to wireless charging profiles supported by the wireless power transmission device from the wireless power transmission device. For example, if the wireless power transmission device supports both a magnetic power profile and other wireless charging profiles, and the electronic device (720) is coupled to a cover device (710) having a magnetic member (711), the electronic device (720) may select a magnetic power profile and transmit or receive power based on the selected magnetic power profile.

[0136] According to one embodiment, the change of the wireless charging profile of the electronic device (720) may be performed upon detection of the cover device (710), or may be performed upon detection of the wireless power transmission device.

[0137] According to one embodiment, when a wireless power transmission device supporting a magnetic power profile is detected, the electronic device (720) determines whether a cover device (710) equipped with a magnetic member (711) is coupled, and if it is determined that the cover device (710) equipped with a magnetic member (711) is coupled, wireless charging can be performed based on the magnetic power profile.

[0138] According to one embodiment, after the wireless power transmission device is detected, if it is determined that the cover device (710) having the magnet member (711) is not engaged, the electronic device (720) may perform wireless charging based on another wireless charging profile (e.g., at least one of BPP or EPP). According to one embodiment, after the wireless power transmission device is detected, if it is determined that the cover device (710) having the magnet member (711) is not engaged, the electronic device (720) may output a user interface including a warning message without performing wireless charging. The warning message may include content notifying that the cover device (710) having the magnet member (711) must be mounted.

[0139] According to one embodiment, the electronic device (720) may output a user interface including a warning message that, if the strength of the magnetic field detected by the magnetic sensor (721) falls within a first range, wireless charging should be performed using a different wireless charging profile or a cover device (710) equipped with a magnet member (711) should be mounted, and if the strength falls within a second range, a foreign substance should be checked between the electronic device (720) and the wireless power transmission device. For example, the warning message may include content that notifies the need to mount the cover device (710) equipped with a magnet member (711) or that a foreign substance exists between the electronic device (720) and the wireless power transmission device.

[0140] According to one embodiment, when the electronic device (720) determines that a cover device (710) having a magnetic member (711) is coupled, the electronic device (720) may output a user interface indicating that a specific function (e.g., a camera-related function or a stylus pen-related function) of the electronic device (720) may malfunction. This user interface may be output when the cover device (710) is coupled, or may be output when the corresponding function is initiated (e.g., when the stylus pen is detached from the electronic device (720).

[0141] In one embodiment, the electronic device (720) may display a user interface on the screen that indicates where the magnetic sensor (721) for detecting the cover device (710) having the magnetic member (711) is positioned on the electronic device (720). For example, the electronic device (720) may display an image corresponding to the rear housing of the electronic device (720) in which the location of the magnetic sensor (721) is indicated.

[0142] According to one embodiment, based at least in part on a determination that the electronic device (720) and the cover device (710) are engaged, the electronic device (720) can change the resonant impedance associated with a receiving coil (e.g., receiving coil (421) of FIG. 4) from a first resonant impedance to a second resonant impedance. For example, the change in resonant impedance can be performed by switching a switch connected to the receiving coil. For example, the change in resonant impedance can be performed by dynamically adjusting a capacitance value or an inductance value associated with the receiving coil.

[0143] At this time, the electronic device (720) detects the cover device (710) equipped with the magnet member (711) by using the unique information according to the formation of the magnetic field as mentioned above, so not only does it not require an additional circuit or element, but it can also detect the cover device (710) with high resolution.

[0144] Referring to FIG. 7b, the magnetic shielding material (712) of the cover device (710) is positioned at a preset angle (θ) in an area close to the magnetic sensor (721). angle ) can be formed so that a magnetic field can leak from a specific area of ​​the magnet member (711). The electronic device (720) can measure such a leakage magnetic field through a magnetic sensor (721) and detect the cover device (710) equipped with the magnet member (711) using the strength and direction of the measured leakage magnetic field.

[0145] In one embodiment, the characteristics (e.g., strength and / or direction) of the magnetic field detected by the magnetic sensor (721) may be determined by a gap region (713) formed by a magnetic shielding material (712) arranged to cover a portion of the magnet member (711) and not cover another portion. At least a portion of the gap region (713) may be arranged to overlap a straight path connecting a central portion (714) defining a radius of curvature of the magnet member (711) and the magnetic sensor (721).

[0146] According to one embodiment, the gap region (713) may be formed to a length corresponding to one of the plurality of arch-shaped segment magnets forming the magnet member (711).

[0147] According to one embodiment, the gap region (713) can be implemented in various shapes. For example, the gap region (713) can be formed by the magnetic shielding material (712) covering substantially the entire top surface of the magnet member (711) and leaving uncovered only a portion of the outer surface (e.g., a portion facing the magnetic sensor (721). As another example, the gap region (713) can be formed by the magnetic shielding material (712) covering substantially the entire inner surface (e.g., a portion facing the induction coil of the electronic device (720)) and leaving uncovered only a portion of the top surface and the outer surface (e.g., a portion facing the magnetic sensor (721). The shape of the gap region (713) may be an arc shape, a square shape, or a round shape, but the shape of the gap region (713) is merely an example and is not limited to the above examples.

[0148] According to one embodiment, two or more gap regions (713) may be formed in the magnetic shielding material (712) of the cover device (710). For example, the plurality of gap regions (713) formed in the magnetic shielding material (712) may be arranged to be spaced apart from each other by a specified distance, and each gap region (713) may be formed to have a different size and / or shape.

[0149] In addition, the gap region (713) formed in the magnetic shielding material (712) can be set so that heat that may be generated during the performance of a function (e.g., wireless charging function) of the electronic device (720) is not concentrated in a specific area, but is more quickly dispersed and efficiently released.

[0150] In the example of Fig. 7b, a gap region (713) of a magnetic shielding material (712) is formed corresponding to the direction in which the magnetic sensor (721) is located, but the formation position of such a gap region (713) is only one example and is not limited to the above example.

[0151]

[0152] FIG. 8 is a conceptual diagram illustrating a method for detecting a cover device equipped with a magnetic member performed by an electronic device according to one embodiment.

[0153] According to one embodiment, one or more processors (e.g., the processor (120) of FIG. 1) included in an electronic device (e.g., the electronic device (101) of FIG. 1, the electronic device (420) of FIG. 4, the electronic device (720) of FIG. 7) may obtain magnetic field information in an area of ​​the electronic device through a magnetic sensor (811) disposed in an area of ​​the electronic device, as in operation (810). At this time, the magnetic sensor (811) disposed in an area of ​​the electronic device may be the same as the magnetic sensor (721) disclosed in FIGS. 7A and 7B.

[0154] According to one embodiment, one or more processors can obtain magnetic field information for cases where a cover device (e.g., cover device (410) of FIG. 4 and cover device (710) of FIG. 7) is attached to the electronic device and cases where it is not attached, respectively, via a magnetic sensor (811). Based on the magnetic field information thus obtained, one or more processors can obtain a magnetic field distribution for cases where a magnet is present and cases where a magnet is not present, as in operation (820).

[0155] At this time, when examining the acquired magnetic field distribution, it can be confirmed that there is a difference between the magnetic field pattern when the cover device is attached to the electronic device and there is a magnet and the magnetic field pattern when the cover device is not attached to the electronic device and there is no magnet.

[0156] According to one embodiment, one or more processors may use magnetic field information in the case where a magnet is present among the magnetic field information constituting the acquired magnetic field distribution, such as operation (820), to set a reference value for detecting a cover device equipped with a magnet member (e.g., magnet member (431) of FIG. 4, magnet member (711) of FIG. 7a).

[0157] More specifically, one or more processors may decompose the magnetic field information in the presence of a magnet into magnetic field strengths for individual directions and the sum of magnetic field strengths of individual directions, and analyze the interrelationships, as in operation (830), to set a reference value for detecting a cover device having a magnet absence.

[0158] For example, one or more processors may be configured to generate magnetic field information in the case of a magnet among the magnetic field information constituting the magnetic field distribution, as the magnetic field strength in the x-axis direction ( ), magnetic field strength in the y-axis direction ( ), magnetic field strength in the z-axis direction ( ) and / or the sum of the magnetic field strengths in individual directions ( mag ) can be composed of. Here, the magnetic field strength in each direction (e.g. , and ) and the sum of the magnetic field strengths in individual directions can all have vector values.

[0159] One or more processors can identify a range of magnetic field strengths in the presence of a magnet from the magnetic field strengths of the individual directions and the sum of the magnetic field strengths of the individual directions thus resolved. The one or more processors can set and store the range of magnetic field strengths thus identified as a reference value for detecting a cover device equipped with a magnet member.

[0160] According to one embodiment, one or more processors can select two different vector values ​​from among the magnetic field strengths of the individual directions and the sum of the magnetic field strengths of the individual directions thus decomposed. One or more processors can analyze the correlation of the magnetic field strengths in the case where there is a magnet identified in the two different vector values ​​thus selected. One or more processors can set and store a reference value for detecting a cover device having a magnet member in a vector plane formed by the two different vectors based on the correlation of the magnetic field strengths thus analyzed. At this time, the set and stored reference value is the two different vectors (e.g., vs , vs , mag vs ) can correspond to the range of areas set on the vector plane formed by the vector.

[0161] According to one embodiment, when contact occurs between an electronic device and a wireless charger (e.g., the wireless charger (410) of FIG. 4) at a later time and wireless charging is performed, the one or more processors may compare magnetic field information acquired through a magnetic sensor (811) disposed in an area of ​​the electronic device with a pre-stored reference value, as in operation (840). The one or more processors may detect a cover device having a magnetic member based on the comparison result, and may determine whether to charge the electronic device using the MPP wireless charging technology based on the detection result of the cover device. Alternatively, the one or more processors may detect a cover device having a magnetic member by comparing magnetic field information acquired through a magnetic sensor (811) disposed in an area of ​​the electronic device with a pre-stored reference value before wireless charging is performed between the electronic device and the wireless charger.

[0162] Although the example of Fig. 8 provides a configuration for detecting whether a cover device equipped with a magnetic member is fastened to an electronic device using a pre-stored reference value, this is only one example and is not limited to the above example.

[0163] According to one embodiment, one or more processors may obtain additional magnetic field information via a magnetic sensor (811) when a cover device equipped with a magnetic member is attached to an electronic device and contact with a wireless charger occurs. The one or more processors may analyze the additional magnetic field information thus obtained to set a reference value, and may additionally detect the wireless charger while the cover device is attached based on the set reference value.

[0164] In this way, one or more processors can analyze magnetic field information for various cases that may occur to set a reference value, and perform detection of devices equipped with a magnet member for various cases through the set reference value.

[0165]

[0166] FIGS. 9A to 9C are drawings showing the structure of a magnetic member included in a cover device according to one embodiment.

[0167] Referring to FIG. 9a, a magnet member (e.g., a magnet member (431) of FIG. 4, a magnet member (711) of FIG. 7) included in a cover device (e.g., a cover device (410) of FIG. 4, a cover device (710) of FIG. 7) may be a result of a plurality of arch-shaped segmented magnets being arranged in a circular array form. However, the shape of the magnet member is merely one example and is not limited to the above example.

[0168] More specifically, referring to FIG. 9a, each of the plurality of arch-shaped segment magnets constituting the magnet member may have a form in which two sub-magnets (910, 930) having different polarities magnetized in a first direction (e.g., vertical direction) are arranged in a second direction (e.g., horizontal direction) with a constant gap (non-magnetic zone) (920).

[0169] According to one embodiment, by forming a portion of a magnetic member included in a cover device, a change in a magnetic field in the portion may be generated. One or more processors (e.g., the processor (120) of FIG. 1) included in an electronic device (e.g., the electronic device (101) of FIG. 1, the electronic device (420) of FIG. 4, the electronic device (720) of FIG. 7) may acquire the magnetic field change generated in this manner through a magnetic sensor (e.g., the magnetic sensor (721) of FIG. 7A, the magnetic sensor (811) of FIG. 8) to thereby detect various shapes of the magnetic member. For example, the processor may detect a cover device equipped with a magnetic member by comparing magnetic field information acquired through the magnetic sensor with a pre-stored reference value, and may determine whether to charge the electronic device using a wireless charging technology of the MPP method based on the detection result.

[0170] According to one embodiment, the cover device may include a magnetic shielding material (940) disposed on one surface of a magnet member in which a plurality of arch-shaped segmented magnets are arranged in a circular array. Such a magnetic shielding material (940) may reduce the influence of a magnetic field generated by the magnet member on internal components and / or a receiving coil of the electronic device.

[0171] At this time, the cover device may be implemented in a circular shape with the magnetic shielding material (940) identical to the magnet member, as shown in FIG. 9A. Alternatively, the cover device may be implemented in a form in which a gap region (951) is formed in the magnetic shielding material (940), as shown in FIG. 9B (950), but segmented magnets (952) corresponding to the gap region (951) exist. Alternatively, the cover device may be implemented in a form in which the magnetic shielding material (940) does not exist, as shown in FIG. 9B (960), or in a form in which a blank region (971) is formed at the same position of the magnet member and the magnetic shielding material (940), as shown in FIG. 970. At this time, the segmented magnets (972, 973) arranged on the left and right sides of the blank region (971) may have a polarity arrangement different from the polarity arrangements of other segmented magnets. The electronic device can identify that the cover device is attached by detecting a magnetic field generated by at least one of the segmented magnets (972, 973) arranged on each of the left and right sides of the blank area (971) by a Hall sensor (e.g., the magnetic sensor (721) of FIG. 7A, the magnetic sensor (811) of FIG. 8). However, the form of the cover device is merely an example and is not limited to the above example.

[0172] According to one embodiment, the magnetic member may have a plurality of arch-shaped segment magnets arranged in a circular array, and a region (951, 971) in which the magnetic shielding material (940) is removed may be formed in at least one of the segment regions in which the plurality of segment magnets are arranged. For example, although the gap region (951) or the blank region (971) illustrated in the drawings (950, 970) of FIG. 9b is illustrated as being formed on one segment region, the present invention is not limited thereto, and the magnetic shielding material (940) may not be arranged on a plurality of segment regions as in the drawings (950-1, 970-1).

[0173] According to one embodiment, the magnetic shielding material (940) disposed on one surface of the magnet member may also generate a magnetic field change in a certain area through molding. More specifically, the magnetic field information acquired through the magnetic sensor may vary depending on the presence, location, and number of gap areas formed in the magnetic shielding material (940). One or more processors may detect a cover device equipped with a magnet member based on the magnetic field change that varies through the molding of the magnetic shielding material (940).

[0174] Referring to FIG. 9c, the cover device may further include an orientation fixing magnet (980) arranged at a predetermined interval based on a magnet member in which a plurality of arch-shaped segment magnets are arranged in a circular array. More specifically, the orientation fixing magnet (980) may have a form in which two sub-magnets (982, 984, 986) having different polarities magnetized in a first direction (e.g., vertical direction) are repeatedly arranged in a second direction (e.g., horizontal direction) with a predetermined gap (non-magnetic zone) (983, 985).

[0175] According to one embodiment, one or more processors included in the electronic device can detect the cover device by acquiring magnetic field information generated by the orientation fixing magnet (980) through a magnetic sensor and comparing it with a preset reference value.

[0176] At this time, a magnetic shielding material may be additionally placed on one side of the orientation fixing magnet (980), and one or more processors may detect the cover device by utilizing the magnetic field change (strength and / or direction) caused by the magnetic shielding material.

[0177] However, in FIG. 9c, the orientation fixing magnet (980) is implemented in the shape of a rectangular parallelepiped, but the shape, size, or arrangement of the orientation fixing magnet (980) is only one example and is not limited to the above example.

[0178]

[0179] FIG. 10 is a drawing showing a method for forming a magnet member included in a cover device according to one embodiment.

[0180] According to one embodiment, a cover device (e.g., a cover device (410) of FIG. 4, a cover device (710) of FIG. 7) can generate a change in a magnetic field by shaping a portion of a magnet member (e.g., a magnet member (431) of FIG. 4, a magnet member (711) of FIG. 7). More specifically, among a plurality of arch-shaped segmented magnets constituting a magnet member included in the cover device, a segmented magnet corresponding to a region closest to a magnetic sensor (e.g., a magnetic sensor (721) of FIG. 7, a magnetic sensor (811) of FIG. 8) of an electronic device (e.g., an electronic device (101) of FIG. 1, an electronic device (420) of FIG. 4) can be identified as a molded magnet. In one embodiment, by applying the methods below to mold the identified molded magnet, a change in a magnetic field measured by a magnetic sensor can be generated through a region in which the corresponding molded magnet exists.

[0181] Referring to Fig. 10, among the plurality of arch-shaped segment magnets constituting the magnet member, a molded magnet may be indicated as "A", and the remaining other segment magnets may be indicated as "B". The magnet member according to the example of Fig. 10 provides an example in which the molded magnet "A" is one of the plurality of segment magnets, but this is only one example, and two or more consecutive segment magnets may be implemented as molded magnets, or segment magnets spaced apart from each other by a certain distance may be implemented as molded magnets. However, the magnet member may be formed such that the area of ​​the molded magnet "A" is smaller than the area of ​​the other segment magnet "B". In addition, although not shown in Fig. 10, a magnetic shielding material may be disposed or removed on one surface of the magnet member, and even when a magnetic shielding material is disposed, the magnetic shielding material may be removed from the area of ​​the molded magnet "A".

[0182] According to one embodiment with reference to the drawing (1012) of FIG. 10, the magnetization region of the molded magnet (e.g., s1 of FIG. 10) may be formed differently from the magnetization regions of other segmented magnets. For example, unlike the magnetization regions of other segmented magnets that are formed wider than the gap region (e.g., s2 of FIG. 10), the magnetization region of the molded magnet may be formed narrower than the gap region. Or, for example, the gap region of the molded magnet may be formed wider than the gap regions of other segmented magnets. In this case, since the magnetic field of the molded magnet tends to be dispersed and diffused outward due to the wide gap region, the strength of the magnetic field may be weakened compared to other segmented magnets. That is, a decrease in the magnetic field strength generated in the molded magnet may cause a change in the magnetic field to the magnetic sensor.

[0183] According to one embodiment with reference to the drawing (1014) of FIG. 10, unlike other segmented magnets in which the magnetization area is formed wider than the gap area, the magnetization area of ​​the molded magnet may be formed narrower than the gap area and smaller than the magnetization area of ​​the other segmented magnets. Or, for example, the gap area of ​​the molded magnet may be wider than the gap area of ​​the other segmented magnets, and the magnetization area of ​​the molded magnet may be formed smaller than the magnetization areas of the other segmented magnets. In this case, the strength of the magnetic field of the molded magnet may be weakened compared to other segmented magnets due to a reduction in the magnetization area as well as the dispersion of the magnetic field due to the wide gap area. That is, the reduction in the magnetic field strength generated in the molded magnet may cause a change in the magnetic field to the magnetic sensor.

[0184] According to one embodiment with reference to the drawing (1016) of FIG. 10, when the polarities of the magnetization region of the molded magnet and the magnetization region of another segmented magnet are different, the magnetic field strength generated in the molded magnet and other adjacent segmented magnets may be weakened due to the cancellation of the magnetic fields generated in the two regions. In other words, a decrease in the magnetic field strength generated in the molded magnet may cause a change in the magnetic field to the magnetic sensor.

[0185] According to one embodiment with reference to the drawing (1018) of FIG. 10, if the magnetization area of ​​the molded magnet is molded to be smaller than that of other segmented magnets while having the same gap area, the strength of the magnetic field of the molded magnet may be weakened compared to that of other segmented magnets due to the reduction in the magnetization area. That is, the reduction in the magnetic field strength generated from the molded magnet may cause a change in the magnetic field to the magnetic sensor.

[0186] According to an embodiment with reference to the drawing (1020) of FIG. 10, the magnetic strength of the molded magnet may be molded differently from the magnetic strength of other segmented magnets. For example, if the magnetic strength of the molded magnet is molded with an N48 grade that is stronger than the N45 grade, while the magnetic strength of other segmented magnets is formed with an N45 grade, the magnetic field strength of the molded magnet may be stronger than that of other segmented magnets due to the higher grade of magnetic strength. That is, the increase in the magnetic field strength generated by the molded magnet may cause a magnetic field change to the magnetic sensor. However, the method of molding the magnetic strength of the molded magnet is only one example and is not limited to the above example. For example, the molded magnet may be molded with a lower grade of magnetic strength than that of other segmented magnets, and thus the decrease in the magnetic field strength generated by the molded magnet may cause a magnetic field change to the magnetic sensor.

[0187] According to one embodiment with reference to drawing (1022) of FIG. 10, the thickness of the molded magnet may be molded differently from the thickness of other segmented magnets. For example, if the molded magnet is molded thicker than the thickness of other segmented magnets, the strength of the magnetic field of the molded magnet may be stronger than that of the other segmented magnets due to the thick magnet thickness. That is, the increase in the strength of the magnetic field generated from the molded magnet may cause a change in the magnetic field toward the magnetic sensor. However, the method of molding the thickness of the molded magnet is only one example and is not limited to the above example. For example, the thickness of the molded magnet may be molded thinner than that of other segmented magnets, and the decrease in the strength of the magnetic field generated by the molded magnet may cause a change in the magnetic field toward the magnetic sensor.

[0188] According to one embodiment with reference to drawing (1024) of FIG. 10, the magnetization structure of the molded magnet may be molded differently from the magnetization structures of other segmented magnets. For example, if the magnetization structure of other segmented magnets is a top-bottom magnetization type and the magnetization structure of the molded magnet is a radial magnetization structure, the magnetic field distributions occurring in the two areas may be different from each other. That is, interference or harmonization of the magnetic fields in the molded magnet may occur, which may cause a change in the magnetic field to the magnetic sensor.

[0189] According to one embodiment with reference to drawings (1026) and (1028) of FIG. 10, the shape of the molded magnet may be molded differently from the shapes of other segmented magnets. For example, if the inner and outer sub-magnets included in other segmented magnets have an inclined shape so that the upper surface is wider than the lower surface, while the inner and outer sub-magnets included in the molded magnet have an inclined shape so that the lower surface is wider than the upper surface, the magnetic field distribution and directionality generated in the two magnet regions may be different from each other. In this way, the molded magnet molded into a different shape compared to other segmented magnets may have a different magnetic field strength compared to other segmented magnets, which may cause a change in the magnetic field to the magnetic sensor.

[0190] At this time, a change in the magnetic field to the magnetic sensor can be generated by molding the gap area size of the molded magnet differently from the gap area size of other segmented magnets as in Figure (1026), or molding the magnetization area size of the molded magnet differently from the magnetization area size of other segmented magnets as in Figure (1028).

[0191] According to one embodiment with reference to the drawing (1030) of FIG. 10, when there is no void region in the molded magnet, unlike the other segmented magnets where there is a void region, a stronger magnetic field may be formed in the molded magnet, which may cause a magnetic field change to the magnetic sensor.

[0192]

[0193] FIG. 11 is a flowchart illustrating a method for determining whether a magnetic member included in a cover device is genuine according to one embodiment. In one embodiment, at least one of the operations in FIG. 11 may be performed simultaneously or in parallel with other operations, and the order between the operations may be changed. In addition, at least one of the operations may be omitted, and other operations may be additionally performed. The operations illustrated in FIG. 11 may be performed by a processor (e.g., processor 120) of an electronic device (e.g., electronic device 101 of FIG. 1 , electronic device 420 of FIG. 4 , electronic device 720 of FIG. 7 ).

[0194] In operation (1110), the processor may obtain magnetic field information through a magnetic sensor (e.g., magnetic sensor (721) of FIG. 7, magnetic sensor (811) of FIG. 8) placed in an area of ​​the electronic device before the electronic device is coupled with a wireless charger (e.g., wireless charger (410) of FIG. 4) that supports a wireless charging standard (e.g., MPP) of a preset manner. At this time, the obtained magnetic field information may include a magnetic field intensity in the x-axis direction ( ), magnetic field strength in the y-axis direction ( ), magnetic field strength in the z-axis direction ( ) and / or the sum of the magnetic field strengths in individual directions ( mag ) may be.

[0195] In operation (1120), the processor acquires the magnetic field strength of individual directions through the magnetic sensor (e.g. , and ) can be compared with a pre-stored reference value. More specifically, the processor can determine whether the magnet member (e.g., the magnet member (431) of FIG. 4, the magnet member (711) of FIG. 7) included in the cover device (e.g., the cover device (410) of FIG. 4, the cover device (710) of FIG. 7) is genuine by determining whether the magnetic field strength in each direction obtained through the magnetic sensor exists within the pre-stored reference value. Whether genuine may mean confirmation of a magnet member appropriate for performing a magnetic power profile. Alternatively, whether genuine may mean information for recognizing the type of cover in an electronic device and / or providing a separate service in an electronic device.

[0196] More specifically, if the magnetic field strength in each direction acquired through the magnetic sensor has a difference within a certain range compared to a pre-stored reference value, the processor can confirm that the magnetic member included in the cover device is genuine, as in operation (1130). Conversely, if the magnetic field strength in each direction acquired through the magnetic sensor has a difference exceeding a certain range compared to a pre-stored reference value, the processor can confirm that the magnetic member included in the cover device is not genuine. According to one embodiment, if the magnetic member included in the cover device is not genuine, the processor can provide a warning message related to the cover device that is set in advance. For example, the processor can provide a warning message such as "Charging performance may be reduced if you do not use an authorized cover device. Please use an authorized cover." However, the types of such warning messages are merely examples and are not limited to the above examples.

[0197] Although the above example provides a configuration for verifying whether the magnet member included in the cover device is genuine by using the magnetic field strength in individual directions acquired through the magnetic sensor, the method for determining whether there is such a genuine magnet is only one example and is not limited to the above example. For example, the processor may also verify whether the magnet member included in the cover device is genuine by using the sum of the magnetic field strengths in individual directions acquired through the magnetic sensor. According to one embodiment, the processor may verify the magnetic member included in the cover device, and if the cover device is determined to be genuine, the processor may determine to support charging of the electronic device using the MPP wireless charging technology during wireless charging.

[0198]

[0199] FIG. 12 is a flowchart illustrating a detection method of a cover device equipped with a magnetic member according to one embodiment. In one embodiment, at least one of the operations of FIG. 12 may be performed simultaneously or in parallel with other operations, and the order between the operations may be changed. In addition, at least one of the operations may be omitted, and other operations may be additionally performed. The operations illustrated in FIG. 12 may be performed by a processor (e.g., processor 120) of an electronic device (e.g., electronic device 101 of FIG. 1 , electronic device 420 of FIG. 4 , electronic device 720 of FIG. 7 ).

[0200] In operation (1210), the processor can determine whether a wireless charger (e.g., wireless charger (410) of FIG. 4) that is in contact with an electronic device to which a cover device (e.g., cover device (410) of FIG. 4, cover device (710) of FIG. 7) is fastened is a wireless charger that uses MPP wireless charging technology. More specifically, when the processor is in contact with a wireless charger, the processor can determine whether the wireless charger is a wireless charger that uses MPP wireless charging technology through packet exchange with the wireless charger.

[0201] For example, when in contact with a wireless charger, the processor may transmit an XID (eXchange IDentifier) ​​packet supporting the MPP method to the wireless charger. If it is identified through packet exchange that the wireless charger does not support the MPP wireless charging technology, the processor may perform wireless charging with the wireless charger in the existing baseline power profile (BPP) method or the extended power profile (EPP) method in operation (1220).

[0202] In contrast, if the wireless charger is identified as supporting MPP wireless charging technology through packet exchange, the processor may perform additional operations to detect a cover device equipped with a magnetic member (e.g., a magnetic member (431) of FIG. 4, a magnetic member (711) of FIG. 7) to apply the MPP method.

[0203] More specifically, in operation (1230), the processor may obtain magnetic field information through a magnetic sensor (e.g., magnetic sensor (721) of FIG. 7, magnetic sensor (811) of FIG. 8) placed in an area of ​​the electronic device. At this time, the obtained magnetic field information may include the magnetic field strength in the x-axis direction ( ), magnetic field strength in the y-axis direction ( ), magnetic field strength in the z-axis direction ( ) and the sum of the magnetic field strengths in individual directions ( mag ) can be decomposed into.

[0204] In operation (1240), the processor obtains the magnetic field strength of individual directions through the magnetic sensor (e.g. , and ) can be compared with a preset reference value. More specifically, the processor can detect a cover device to which the MPP wireless charging technology can be applied by determining whether the magnetic field strength in each direction obtained through the magnetic sensor exists within a preset reference value.

[0205] For example, if the processor determines that the magnetic field strength in each direction acquired through the magnetic sensor does not fall within a preset reference value, the processor may determine that a foreign substance exists between the cover device and the wireless charger. In this case, the processor may provide a preset warning message related to the presence of the foreign substance, as in operation (1250). For example, the processor may provide a warning message such as, "There is a metal substance on the charging pad. Please remove it and try again." However, the types of such warning messages are merely examples and are not limited to the above examples.

[0206] In contrast, if the magnetic field strength in each direction acquired through the magnetic sensor is identified as existing within a preset reference value, the processor may determine that a cover device capable of applying MPP wireless charging technology has been detected and perform the following actions.

[0207] In operation (1260), the processor may compare the sum of the magnetic field strengths of individual directions acquired through the magnetic sensor with a preset reference value. More specifically, the processor may determine whether the detected cover device is authenticated based on whether the sum of the magnetic field strengths of individual directions acquired through the magnetic sensor is within the preset reference value.

[0208] For example, if the processor determines that the sum of the magnetic field strengths of individual directions acquired through the magnetic sensor does not fall within a preset reference value, the processor may determine that the detected cover device is not a product certified by the manufacturer. In this case, the processor may provide a warning message related to the preset cover device, such as in operation (1270). For example, the processor may provide a warning message such as "Charging performance may be reduced if an authorized cover device is not used. Please use an authorized cover." However, the types of such warning messages are merely examples and are not limited to the above examples.

[0209] According to one embodiment, if the sum of the magnetic field strengths of individual directions acquired through the magnetic sensor is identified as being within a preset reference value, the processor may determine, in operation (1280), that the detected cover device is a product certified by the manufacturer. In this case, the processor may provide a guidance message notifying that wireless charging has started using the MPP wireless charging technology. For example, the processor may provide a guidance message such as "Wireless charging has started using the MPP method." However, the types of such guidance messages are merely examples and are not limited to the above examples.

[0210] Although the above example provides a configuration for determining whether the cover device is authenticated through the sum of the magnetic field strengths of individual directions acquired through the magnetic sensor, the magnetic field information used to determine whether the cover device is authenticated is only an example and is not limited to the above example. For example, the processor may determine the correlation between any two magnetic field strengths of individual directions (e.g., ) can also be used to determine whether the cover device is authenticated.

[0211] Meanwhile, the authenticity of the detected cover device can be more accurately determined by changing at least one of the shape, polarity, strength, grade, or magnetization structure of the molded magnet among the multiple arch-shaped segmented magnets constituting the magnet member. A more detailed method for determining the authenticity of the detected cover device will be described in detail with reference to the drawings below.

[0212] According to one embodiment, the operating method of the electronic device (101; 420; 720) can determine whether the wireless charger supports the first wireless charging standard through packet exchange with the wireless charger when in contact with the wireless charger. The operating method of the electronic device (101; 420; 720) can obtain magnetic field information through a magnetic sensor arranged in one area of ​​the electronic device (101; 420; 720). The operating method of the electronic device (101; 420; 720) can determine whether to charge the electronic device (101; 420; 720) through the first wireless charging standard by using the obtained magnetic field information and a preset reference value for detecting a cover device equipped with a magnet member.

[0213] According to one embodiment, the magnetic field information acquired through the magnetic sensor may be formed by a cover device in which a segmented magnet corresponding to an area closest to the magnetic sensor among a plurality of arch-shaped segmented magnets constituting the magnet member is distinguished as a molded magnet, and at least one of the shape, polarity, strength, grade, or magnetization structure of the distinguished molded magnet is changed.

[0214] According to one embodiment, the operation of determining whether to charge via the first wireless charging standard may identify whether the magnetic field strength in each direction constituting the acquired magnetic field information is within a preset first reference value. The operation of determining whether to charge via the first wireless charging standard may determine that a cover device capable of applying the first wireless charging standard has been detected if the magnetic field strength in each direction is identified as being within the first reference value.

[0215] In one embodiment, the operation of determining whether to charge via the first wireless charging standard may provide a warning message related to the presence of a preset foreign object if the magnetic field strength in an individual direction is identified as not being within a first reference value.

[0216] According to one embodiment, the operation of determining whether to charge via the first wireless charging standard may determine whether the sum of the magnetic field intensities of the individual directions constituting the acquired magnetic field information is within a preset second reference value when the magnetic field intensities of the individual directions are identified as being within a first reference value. The operation of determining whether to charge via the first wireless charging standard may determine the detected cover device as a product certified by the manufacturer when the sum of the magnetic field intensities of the individual directions is identified as being within the second reference value.

[0217] In one embodiment, the operation of determining whether to charge via the first wireless charging standard may provide a warning message related to the cover device set in advance if the sum of the magnetic field strengths of the individual directions is identified as not being within a second reference value.

[0218] According to one embodiment, the operation of determining whether to charge via the first wireless charging standard may include providing a guidance message indicating that wireless charging has begun via the first wireless charging standard when it is determined that a cover device capable of applying the first wireless charging standard has been detected.

[0219] In one embodiment, if the wireless charger is determined to not support the first wireless charging standard, charging may be performed using a second wireless charging standard instead of the first wireless charging standard. The first wireless charging standard may include a magnetic power profile (MPP).

[0220]

[0221] Fig. 13 is a drawing showing a method for determining whether or not authentication is performed through the formation of a magnetizing structure of a molded magnet according to one embodiment.

[0222] The upper drawing of Fig. 13 shows magnetic field information acquired through a magnetic sensor (e.g., a magnetic sensor (721) of Fig. 7, a magnetic sensor (811) of Fig. 8) of an electronic device (e.g., an electronic device (101) of Fig. 1, an electronic device (420) of Fig. 4, an electronic device (720) of Fig. 7)) when all of the plurality of arch-shaped segmented magnets constituting the magnetic member (e.g., a magnet member (431) of Fig. 4, a magnet member (711) of Fig. 7) included in a cover device (e.g., a cover device (410) of Fig. 4, a cover device (710) of Fig. 7) have an axial type magnetization structure. In this case, since the Earth's magnetic field intensity in the z-axis direction has a (-) polarity value, and the z-axis direction magnetic field intensity of the magnet member included in the cover device also has a (-) polarity value, the z-axis direction composite magnetic field intensity acquired through the magnetic sensor has a (-) polarity value.

[0223] According to one embodiment, one or more processors of the electronic device (e.g., the processor (120) of FIG. 1) can more accurately determine whether the cover device is authenticated by using the polarity characteristics for the magnetic field strength in the z-axis direction. As an example, the lower drawing of FIG. 13 shows the result of changing the magnetization structure of a molded magnet among a plurality of arch-shaped segmented magnets constituting a magnet member included in the cover device from the existing top-bottom magnetization type to a radial magnetization type, unlike other magnets. In this case, the polarity of the magnetic field strength in the z-axis direction of the magnet member included in the cover device can be changed from (-) to (+).

[0224] For example, Fig. 14 shows the magnetic field distribution in the case where the magnetization structure of the molded magnet among the plurality of arch-shaped segment magnets constituting the magnet member included in the cover device is changed from the top-bottom magnetization type to the radial magnetization type, unlike other single segment magnets. In this case, in the case where there is a cover device certified by the manufacturer as in the example of Fig. 14, the z-axis direction magnetic field intensity of the magnetic field information acquired through the magnetic sensor ( ) can be confirmed to have a certain value or higher.

[0225] According to one embodiment, the processor of the electronic device is configured to: determine the magnetic field strength in the z-axis direction among the magnetic field information obtained through the magnetic sensor; ) can be compared with a preset reference value to determine whether the detected cover device is authenticated. That is, the processor determines whether the magnetic field strength in the z-axis direction among the magnetic field information acquired through the magnetic sensor is ) is greater than the preset standard value, the detected cover device can be judged as a product certified by the manufacturer.

[0226] At this time, the processor obtains the magnetic field strength in the remaining direction from among the magnetic field information obtained through the magnetic sensor. , ) and the sum of the magnetic field strengths in individual directions ( ) can be additionally considered and compared with preset reference values ​​to determine whether authentication is more accurate.

[0227] Meanwhile, the processor can also distinguish the shape, polarity, strength, grade, or magnetization structure of a magnet member by comparing the magnetic field information acquired through the magnetic sensor with a preset reference value according to various magnet members.

[0228]

[0229] Fig. 15 is a drawing showing a method for determining whether authentication is possible through a change in the grade of a molded magnet according to one embodiment.

[0230] The present disclosure can determine whether a cover device is authenticated by detecting a change in the grade of a molded magnet among a plurality of arch-shaped segmented magnets constituting a magnet member (e.g., a magnet member (431) of FIG. 4, a magnet member (711) of FIG. 7) included in a cover device (e.g., a cover device (410) of FIG. 4, a cover device (710) of FIG. 7). For example, referring to FIG. 15, a magnetic field intensity acquired through a magnetic sensor (e.g., a magnetic sensor (721) of FIG. 7, a magnetic sensor (811) of FIG. 8) of an electronic device (e.g., an electronic device (101) of FIG. 1, an electronic device (420) of FIG. 4, an electronic device (720) of FIG. 7) may vary depending on a change in the grade of the molded magnet. A processor (e.g., a processor (120) of FIG. 1) of the electronic device can distinguish and store a plurality of reference values ​​depending on a change in the grade of the molded magnet based on the magnetic field intensity acquired in this manner.

[0231] For example, referring to Fig. 15, in a situation where the magnetic strength of other segmented magnets is implemented as N48 grade by the manufacturer, when the magnetic strength of the molded magnet is implemented as N35 grade, the measured magnetic field strength obtained through the magnetic sensor is (55), (43), (-271) and (279). If the magnetic strength of such a magnetic member is not known, the magnetic field strength obtained through the magnetic sensor is (55), (43), (-271) and (279) If it is identified that the cover device including the magnetic member exists within a certain range, the processor may determine that the cover device including the magnetic member is a product certified by the manufacturer.

[0232] That is, if the magnetic member of the cover device is manufactured using a molded magnet of a preset grade according to the intention of the manufacturer, the processor can determine whether the detected cover device is authenticated through a reference value stored corresponding to the molded magnet of the preset grade.

[0233]

[0234] FIG. 16 is a diagram illustrating a cover determination method through a change in a segmented area of ​​a magnetic shielding material according to one embodiment.

[0235] A magnetic member (e.g., a magnetic member (431) of FIG. 4, a magnetic member (711) of FIG. 7) included in a cover device (e.g., a cover device (410) of FIG. 4, a cover device (710) of FIG. 7) may have a magnetic shielding material (e.g., a magnetic shielding material (432) of FIG. 4, a magnetic shielding material (712) of FIG. 7, a magnetic shielding material (940) of FIG. 9) disposed on one surface thereof. According to one embodiment, a method for determining a state of the corresponding magnetic member through a change in a segmented area of ​​the magnetic shielding material may be provided. For example, a specified state of the arrangement of the corresponding magnetic member may be determined through a change in a segmented area of ​​the magnetic shielding material. According to one embodiment, a method for determining the corresponding cover device through a change in a segmented area of ​​the magnetic shielding material may be provided.

[0236] According to one embodiment, referring to FIG. 16, the magnetic field intensity obtained through a magnetic sensor (e.g., the magnetic sensor (721) of FIG. 7, the magnetic sensor (811) of FIG. 8) of an electronic device (e.g., the electronic device (101) of FIG. 1, the electronic device (420) of FIG. 4, the electronic device (720) of FIG. 7) may vary depending on a change in a segmented area formed in a magnetic shielding material. A processor (e.g., the processor (120) of FIG. 1) of the electronic device may distinguish and store a plurality of reference values ​​depending on a change in a segmented area of ​​the magnetic shielding material based on the magnetic field intensity obtained in this manner.

[0237] For example, the magnetic field strength measured in a situation where a segmented area is formed in the 30 degree direction of the magnetic shielding material by the manufacturer is (52), (-12), (-229) and (235). If the segmentation area of ​​such magnetic shielding material is not known, the magnetic field intensity obtained through the magnetic sensor is (52), (-12), (-229) and (235) If it is identified that the cover device containing the magnetic shielding material exists within a certain range, the processor may determine that the cover device containing the magnetic shielding material is a product certified by the manufacturer.

[0238] For example, the magnetic field strength measured in a situation where a segmented area is formed in the 0 degree direction of the magnetic shielding material by the manufacturer is (118), (-45), (-312) and (336). If the segmentation area of ​​such magnetic shielding material is not known, the magnetic field intensity obtained through the magnetic sensor is (118), (-45), (-312) and (336) If it is identified as existing within a certain range, the processor may determine that the cover device containing the magnetic shielding material is another product certified by the manufacturer.

[0239] That is, if the magnetic shielding material of the cover device is manufactured using a magnetic shielding material in which a segmented area is formed in a preset direction according to the manufacturer's intention, the processor can determine whether the cover device is authenticated by identifying the segmented area of ​​the magnetic shielding material using a pre-stored reference value.

[0240]

[0241] Fig. 17 is a drawing showing a cover determination method according to the structure of a cover device according to one embodiment.

[0242] According to one embodiment, a processor (e.g., processor (120) of FIG. 1) of an electronic device (e.g., electronic device (101) of FIG. 1, electronic device (420) of FIG. 4, electronic device (720) of FIG. 7) may determine the presence or structure of a cover device (e.g., cover device (410) of FIG. 4, cover device (710) of FIG. 7) based on a magnetic field strength obtained through a magnetic sensor (e.g., magnetic sensor (721) of FIG. 7, magnetic sensor (811) of FIG. 8).

[0243] In one embodiment, the electronic device can measure the magnetic field strength when in a state of engagement with the cover device. Alternatively, the electronic device can measure the magnetic field strength when in a state of engagement with the cover device and connected to the wireless power transmission device.

[0244] According to one embodiment with reference to the drawing (1710) of FIG. 17, the processor acquires a magnetic field intensity ( ) is about 801 uT, it can be determined that there is no cover device or genuine cover device. For example, FIG. 18a shows the magnetic field strength obtained when there is no cover device or genuine cover device, and it can be confirmed that the magnetic field strength obtained through the magnetic sensor by the magnet of the wireless power transmission device is large due to the absence of the cover device. Although the example of Figure (1710) provides a configuration for determining the absence of a cover device for MPP, this is only one example, and it can also determine the presence or absence of a general cover device (e.g., a plastic cover device) that is not for MPP.

[0245] According to one embodiment with reference to Figure 17 (1720), the processor acquires a magnetic field intensity ( ) is about 400 uT, it can be determined that there is a cover device including a magnet member (e.g., a magnet member (431) of FIG. 4, a magnet member (711) of FIG. 7) in which a plurality of arch-shaped segment magnets are arranged in a circular array form and a magnetic shielding material (e.g., a magnetic shielding material (432) of FIG. 4, a magnetic shielding material (712) of FIG. 7, a magnetic shielding material (940) of FIG. 9) arranged on one surface of the magnet member. As an example, FIG. 18b shows the obtained magnetic field intensity when there is a cover device including a magnet member and a magnetic shielding material, and it can be confirmed that the concentration of the magnetic field in the segmented area formed in the magnetic shielding material is higher than in other areas.

[0246] According to one embodiment with reference to Figure 17 (1730), the processor acquires a magnetic field intensity ( ) is approximately 731 uT, it can be determined that a cover device including only a magnet member exists. For example, Fig. 18c shows the obtained magnetic field strength when a cover device including only a magnet member exists, and it can be confirmed that the magnetic field is widely spread due to the absence of a magnetic shielding material, and the concentration in a specific direction is low.

[0247] According to one embodiment with reference to Figure 17 (1740), the processor acquires a magnetic field intensity ( ) is about 625 uT, it can be determined that there is a cover device including a magnet member in which the segmented magnets of a specific region are formed with a radial magnetization structure. For example, FIG. 18d shows the obtained magnetic field strength when there is a cover device including a magnet member in which the segmented magnets of a specific region have a radial magnetization structure, and it can be confirmed that there is a difference in the obtained magnetic field strength due to the position of the gap region with respect to the magnetic sensor and the magnetization path of different magnets by comparing it with the drawing (1720) of a similar structure.

[0248] According to one embodiment with reference to the drawing (1750) of FIG. 17, the processor acquires the magnetic field intensity ( ) is about 361 uT, it can be determined that there is a cover device including a magnet member formed with a top-bottom magnetization structure in which the segmented magnets of a specific region are formed. For example, FIG. 18e shows the obtained magnetic field intensity when there is a cover device including a magnet member having a top-bottom magnetization structure in which the segmented magnets of a specific region are formed, and it can be confirmed that there is a difference in the obtained magnetic field intensity due to the difference in the non-magnetization area by comparing it with the drawing (1720) of a similar structure.

[0249] Embodiments of the present disclosure may be applied to a rollable, foldable, or multi-foldable electronic device. The multi-foldable electronic device may be a two-stage foldable electronic device including two folding axes, a three-stage foldable electronic device including three folding axes, or a four-stage foldable electronic device including four folding axes.

[0250] A foldable electronic device may include a flexible display including housing portions (a first housing and a second housing) that are rotatably connected to each other about a folding axis, and display portions (a first display area and a second display area) accommodated in the housings. A hinge assembly coupled to each housing and supporting a folding function may be included between the first housing and the second housing. A hinge housing for accommodating at least a portion of the hinge assembly may be disposed between the first housing and the second housing. A multi-foldable electronic device may include a second housing that is rotatably connected to the first housing about a first folding axis, and a third housing that is rotatably connected to the second housing about a second folding axis. The multi-foldable electronic device may include a flexible display including a first display area, a second display area, and a third display area accommodated in the first housing, the second housing, and the third housing, respectively.

[0251] The folding axis of the foldable electronic device may support in-folding or out-folding. In-folding may correspond to a method in which corresponding display areas are folded in a direction facing each other. The in-folding hinge portion may include a hinge housing. Out-folding may correspond to a method in which corresponding display areas are folded in opposite directions facing each other. The out-folding recognition portion may not include a hinge housing. The first folding axis of the multi-foldable electronic device may support out-folding, and the second folding axis may support in-folding. The first housing and the second housing may be folded in an out-folding manner, and the second housing and the third housing may be folded in an in-folding manner.

[0252] The magnet member and magnetic shielding material of the present disclosure may be disposed on a rear cover portion (e.g., between a battery and a rear cover) of a housing (e.g., a third housing) that folds inwardly relative to another housing. The magnet member and magnetic shielding material of the present disclosure may be provided on at least a portion of a cover device that is coupled to the rear cover portion of a housing (e.g., a third housing) that folds inwardly relative to another housing. In the present disclosure, the housing portion may refer to each separate housing that is separable or each region of one housing.

[0253] Embodiments of the present disclosure can be implemented in an electronic device including a wearable device (e.g., a smartwatch, AR, VR, glasses, or a smart ring) and a cover for the electronic device (e.g., a case for charging and storing earbuds, or a keyboard case for a tablet). The electronic device of the present disclosure and a counterpart device that transmits / receives power and / or data may be at least a part of an electrical or electronic device included in a smartphone, a smartwatch, a charging station, a docking station, or a vehicle. At least one of the two devices may include a structure in which the direction of magnetic force, the arrangement of the magnet, and / or the arrangement of the housing including the magnet can be changed according to conditions. The two devices may have a mechanical coupling structure to each other.

[0254] The magnetic member and magnetic shielding material of the present disclosure may be provided in various sizes and / or shapes depending on the type of form factor of the electronic device.

[0255] The magnetic member and magnetic shielding material of the present disclosure may be disposed on a cover device that is coupled to the upper / lower / left / right sides or the upper / lower / left / right sides of an electronic device. The magnetic member and magnetic shielding material may be provided in various shapes (e.g., square) in addition to a loop shape. The magnetic shielding material may be provided in the form of a square sheet that covers the loop-shaped magnetic member.

[0256] In addition, the embodiments of the present disclosure disclosed in this specification and drawings are merely specific examples presented to easily explain the technical contents according to the embodiments of the present disclosure and to help understand the embodiments of the present disclosure, and are not intended to limit the scope of the embodiments of the present disclosure. Therefore, the scope of the embodiments of the present disclosure should be interpreted as including all changes or modified forms derived based on the technical idea of ​​the embodiments of the present disclosure in addition to the embodiments disclosed herein.

Claims

1. In electronic devices (101; 420; 720), One or more processors (120); A memory (130) comprising one or more storage media for storing commands; and magnetic sensor (721; 811) Including, The above instructions, when individually or collectively executed by one or more processors (120), cause the electronic device (101; 420; 720) to: Receive a request for wireless charging, Detecting the magnetic field associated with the cover device (410; 710) through the above magnetic sensor (721; 811), If the detected magnetic field corresponds to a preset standard, the wireless charging is performed using the first wireless charging profile, If the detected magnetic field does not correspond to a preset standard, the wireless charging is performed using the second wireless charging profile, The magnetic field detected through the above magnetic sensor (721; 811) is It is generated by a magnetic shielding material (432; 712; 940) which is formed by a ring-shaped magnetic member (431; 711) placed on the cover device (410; 710) and a gap region formed in a part of the magnetic member (431; 711) while being placed on one side of the magnetic member (431; 711). Electronic devices (101; 420; 720).

2. In paragraph 1, The above instructions, when individually or collectively executed by one or more processors (120), cause the electronic device (101; 420; 720) to: Based at least in part on the above request, identifying a wireless power transmission device attached via the magnet member (431; 711), To receive information including whether at least one of the first wireless charging profile or the second wireless charging profile is supported from the wireless power transmission device. Electronic devices (101; 420; 720).

3. In any one of paragraphs 1 to 2, The above instructions, when individually or collectively executed by one or more processors (120), cause the electronic device (101; 420; 720) to: If the detected magnetic field corresponds to a preset standard, the wireless charging profile of the electronic device (101; 420; 720) is set to the first wireless charging profile, At least in part based on the request, a wireless power transmission device supporting the first wireless charging profile and the second wireless charging profile, to wirelessly receive power using the first wireless charging profile. Electronic devices (101; 420; 720).

4. In any one of paragraphs 1 to 3, The first wireless charging profile corresponds to a magnetic power profile, and the second wireless charging profile corresponds to an extended power profile. Electronic devices (101; 420; 720).

5. In any one of paragraphs 1 to 4, When the electronic device (101; 420; 720) is coupled with the cover device (410; 710), an induction coil is arranged to be surrounded by the magnetic member (431; 711). Including more, The above instructions, when individually or collectively executed by one or more processors (120), cause the electronic device (101; 420; 720) to: If the detected magnetic field corresponds to a preset criterion, it is determined that the electronic device (101; 420; 720) is coupled with the cover device (410; 710). To change the impedance related to the above induction coil from the first impedance to the second impedance, Electronic devices (101; 420; 720).

6. In any one of paragraphs 1 to 5, The above instructions, when individually or collectively executed by one or more processors (120), cause the electronic device (101; 420; 720) to: If the detected magnetic field satisfies a preset criterion for a specified period of time, the electronic device (101; 420; 720) is determined to be coupled with the cover device (410; 710). Electronic devices (101; 420; 720).

7. In any one of paragraphs 1 to 6, The above instructions, when individually or collectively executed by one or more processors (120), cause the electronic device (101; 420; 720) to: If the detected magnetic field does not satisfy the preset criteria, output a user interface indicating the presence of an external object other than the cover device (410; 710). Electronic devices (101; 420; 720).

8. In any one of paragraphs 1 to 7, Additional magnetic sensor Including more, The above instructions, when individually or collectively executed by one or more processors (120), cause the electronic device (101; 420; 720) to: When the magnetic field detected through the magnetic sensor (721; 811) satisfies a first preset criterion and the magnetic field detected through the additional magnetic sensor satisfies a second preset criterion, it is determined that the electronic device (101; 420; 720) is coupled with the cover device (410; 710). Electronic devices (101; 420; 720).

9. In the cover device (410; 710), A housing comprising a first side formed to be coupled with an electronic device (101; 420; 720) and a second side opposite the first side; An annular magnetic member (431; 711) disposed in the housing and surrounding at least a portion of an induction coil provided in the electronic device (101; 420; 720) when the first surface is coupled to the electronic device (101; 420; 720); and It includes a magnetic shielding material (432; 712; 940) having a shape corresponding to the above magnetic member (431; 711) and formed to cover a part of the above magnetic member (431; 711). The above magnetic shielding material (432; 712; 940) and the magnet member (431; 711) are The magnetic shielding material (432; 712; 940) generates a magnetic field deviation by utilizing a gap area formed by covering part of one side of the magnet member (431; 711) and not covering the other part, so that the magnetic field generated by the magnetic field deviation is detected through the magnetic sensor (721; 811) of the electronic device (101; 420; 720). Cover device (410; 710).

10. In paragraph 9, The above gap area is, Formed between the central portion defining the radius of curvature of the magnetic member (431; 711) and the magnetic sensor (721; 811), Cover device (410; 710).

11. In any one of paragraphs 9 to 10, The above magnet member (431; 711) is It is formed by connecting multiple arch-shaped segment magnets, The above multiple arch-shaped segmented magnets are, First segment magnets having a first polarity arrangement corresponding at least partially to said one surface and providing a tensile force to be attached to another annular magnet member disposed in said wireless power transmission device when said second surface of said housing is coupled to said wireless power transmission device; and At least one second segment magnet disposed adjacent to the gap region and having a second polarity arrangement providing at least a portion of the magnetic field; Cover device (410; 710).

12. In any one of paragraphs 9 to 11, The above magnetic shielding material (432; 712; 940) is Further comprising a first side region covering at least a portion of the outer surface of the magnet member (431; 711) and a second side region covering at least a portion of the inner surface, The length of the first side region and the length of the second side region are distinct from each other, Cover device (410; 710).

13. In any one of paragraphs 9 to 12, The above gap area is, Without the first side area, including the second side area, Cover device (410; 710).

14. In any one of paragraphs 9 to 13, The above magnetic shielding material (432; 712; 940) and the magnet member (431; 711) form an additional gap area, The sizes of the above gap area and the above additional gap area are distinct from each other. Cover device (410; 710).

15. In the operating method of an electronic device (101; 420; 720), When in contact with a wireless charger (410), an operation of determining whether the wireless charger (410) supports the first wireless charging standard through packet exchange with the wireless charger (410); An operation of acquiring magnetic field information through a magnetic sensor (721; 811) placed in one area of ​​the above electronic device (101; 420; 720); and An operation of determining whether the electronic device (101; 420; 720) can be charged through the first wireless charging standard by using the acquired magnetic field information and a preset reference value to detect a cover device (410; 710) equipped with a magnet member (431; 711). To perform, The magnetic field information obtained through the above magnetic sensor (721; 811) is An operating method formed by a cover device (410; 710) implemented to generate a magnetic field deviation in one area by using a magnetic member (431; 711) in which a plurality of arch-shaped segmented magnets are arranged in an array form and a magnetic shielding material (432; 712; 940) arranged on one surface of the magnetic member (431; 711).

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