ELECTRONIC DEVICES AND EQUIPMENT IN ENCLOSURES

Abstract

The invention relates to an electronic device and a device in the form of an enclosure. The electronic device may consist of a display (330), a coil (370), a magnet assembly (373) comprising several first magnets (610) arranged to surround the coil (370) and several second magnets (620) arranged at specified distances from several first magnets (610) to surround several first magnets (610), a first shield (391) extending along the magnet assembly (373) toward the display (330) toward the magnet assembly (373), a second shield (392) arranged between the coil (370) and the display (330) toward the display (330) from the first shield (391), and a third shield (393) arranged between the display and the second shield. Other variations may be proposed in addition to the variations of the invention.

Description

Electronic devices and case devices containing magnets

[0001] Various embodiments of the present disclosure relate to electronic devices and case devices including magnets.

[0002] An electronic device may include a coil that supports wireless charging. The electronic device may include a magnet positioned around the coil or may be equipped with a case device that includes a magnet. For example, when the electronic device is placed on an attachable wireless charger for charging, the magnet may ensure that the electronic device is aligned with the attachable wireless charger.

[0003] 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.

[0004] An electronic device according to various embodiments of the present disclosure may include a magnet assembly including a display, a coil, a plurality of first magnets arranged to surround the coil, and a plurality of second magnets arranged to surround the plurality of first magnets at positions spaced apart from the plurality of first magnets by a predetermined distance, a first magnetic field shielding sheet attached to the magnet assembly and extending along the magnet assembly in a direction toward the display, a second magnetic field shielding sheet arranged between the coil and the display in a direction from the first magnetic field shielding sheet toward the display, and a third magnetic field shielding sheet arranged between the display and the second magnetic field shielding sheet.

[0005] A case device according to various embodiments of the present disclosure may include a magnet assembly including a plurality of first magnets arranged to surround an electronic device including a coil and facing the coil, a plurality of second magnets arranged to surround the plurality of first magnets at positions spaced apart from the plurality of first magnets by a predetermined distance, and a magnetic field shielding sheet attached to the magnet assembly and extending along the magnet assembly in a direction toward the electronic device.

[0006] Other technical tasks, technical features and effects not mentioned in the present disclosure will be clearly understood by those skilled in the art to which the present invention pertains from the description below.

[0007] FIG. 1 is a block diagram of an electronic device within a network environment according to various embodiments.

[0008] FIG. 2A is a perspective view of the front of an electronic device according to various embodiments.

[0009] FIG. 2B is a perspective view of the rear surface of the electronic device of FIG. 2A, according to various embodiments.

[0010] FIG. 3 is an exploded perspective view of an electronic device according to various embodiments.

[0011] FIG. 4 is an exploded perspective view of an electronic device and a case device according to various embodiments.

[0012] FIG. 5 is a drawing schematically illustrating an operation of a power transmitting device charging a power receiving device according to various embodiments.

[0013] FIGS. 6A, 6B, and 6C are diagrams illustrating coils and a plurality of magnets arranged in an internal space of a power receiving device according to various embodiments.

[0014] FIG. 7 is a diagram illustrating a coil disposed in an internal space of a power receiving device and a plurality of magnets disposed in an internal space of a case device according to various embodiments.

[0015] FIG. 8 is a cross-sectional view of a magnet assembly of a power transmitting device and a power receiving device according to various embodiments.

[0016] FIG. 9 is a diagram for comparing the change in the influence of a magnetic field on a digitizer according to the width of the gap region of a magnet assembly according to various embodiments.

[0017] FIG. 10 is a drawing for comparing changes in the magnetic field influence on a digitizer according to the thickness of a first magnetic field shielding sheet according to various embodiments.

[0018] FIG. 11 is a cross-sectional view of a magnet assembly of a power transmitting device and a power receiving device according to various embodiments.

[0019] FIG. 12 is a diagram for comparing changes in the magnetic field influence on a digitizer according to the thickness of a first magnetic field shielding sheet according to various embodiments.

[0020] FIG. 13 is a diagram for comparing the magnetization direction of a magnet and the magnetic field saturation of a second magnetic field shielding sheet depending on the presence or absence of a first magnetic field shielding sheet according to various embodiments.

[0021] FIG. 14 is a drawing for comparing magnetic field radiation patterns according to the presence or absence of a first magnetic field shielding sheet according to various embodiments.

[0022] FIG. 15 is a drawing for explaining at least one specific area disposed on a first magnetic field shielding sheet according to various embodiments.

[0023] FIG. 16 is a drawing for explaining the placement position of at least one specific area in a first magnetic field shielding sheet according to various embodiments.

[0024] FIG. 1 is a block diagram of an electronic device (101) within a network environment (100) according to various embodiments.

[0025] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (104) or a 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)).

[0026] 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 calculations. According to one embodiment, as at least a part of the data processing or calculations, 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). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or a secondary 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 therewith. For example, if the electronic device (101) includes a main processor (121) and a secondary processor (123), the secondary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a specified function. The secondary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0027] 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.

[0028] The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto. The memory (130) can include volatile memory (132) or non-volatile memory (134).

[0029] 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).

[0030] 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).

[0031] 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.

[0032] The display module (160) can visually provide information to an external party (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. In 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.

[0033] 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).

[0034] 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.

[0035] 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.

[0036] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., 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).

[0037] 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.

[0038] 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.

[0039] 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).

[0040] 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.

[0041] 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 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).

[0042] 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 MIMO (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.

[0043] 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 printed circuit board (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).

[0044] 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.

[0045] 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)).

[0046] 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.

[0047] FIG. 2A is a perspective view of the front of an electronic device (200) according to various embodiments. FIG. 2B is a perspective view of the rear of the electronic device (200) of FIG. 2A according to various embodiments.

[0048] According to various embodiments, the electronic device (200) of FIGS. 2A and 2B may be at least partially similar to the electronic device (101) of FIG. 1 or may include other embodiments of the electronic device.

[0049] Referring to FIGS. 2A and 2B , an electronic device (200) according to one embodiment may include a housing (210) that includes a first side (or front side) (210A), a second side (or back side) (210B), and a side surface (210C) that surrounds a space between the first side (210A) and the second side (210B). In another embodiment (not shown), the housing (210) may refer to a structure that forms a portion of the first side (210A), the second side (210B), and the side surface (210C) of FIGS. 2A and 2B . According to one embodiment, the first side (210A) may be formed by a front plate (202) that is at least partially substantially transparent (e.g., a glass plate or a polymer plate including various coating layers). The second side (210B) may be formed by a substantially opaque back plate (211). The rear plate (211) may be formed of, for example, coated or colored glass, ceramic, polymer, metal (e.g., aluminum, stainless steel (STS), or magnesium), or a combination of at least two of the foregoing materials. The side (210C) may be formed by a side bezel structure (or “side member”) (218) that is coupled to the front plate (202) and the rear plate (211) and comprises a metal and / or polymer. In some embodiments, the rear plate (211) and the side bezel structure (218) may be formed integrally and comprise the same material (e.g., a metal material such as aluminum).

[0050] In the illustrated embodiment, the front plate (202) may include a first region (210D) extending seamlessly from the first surface (210A) toward the rear plate (211), at both ends of a long edge of the front plate (202). In the illustrated embodiment (e.g., see FIG. 2B), the rear plate (211) may include a second region (210E) extending seamlessly from the second surface (210B) toward the front plate (202), at both ends of a long edge. In some embodiments, the front plate (202) or the rear plate (211) may include only one of the first region (210D) or the second region (210E). In some embodiments, the front plate (202) may not include the first region (210D) and the second region (210E), and may only include a flat surface that is arranged parallel to the second side (210B). In the above embodiments, when viewed from the side of the electronic device (200), the side bezel structure (218) may have a first thickness (or width) on the side that does not include the first region (210D) or the second region (210E), and may have a second thickness that is thinner than the first thickness on the side that includes the first region or the second region.

[0051] According to one embodiment, the electronic device (200) may include at least one of a display (201) (e.g., a display module (160) of FIG. 1), an input device (203) (e.g., an input module (150) of FIG. 1), an audio output device (207, 214) (e.g., an audio output module (155) of FIG. 1), a sensor module (204, 219) (e.g., a sensor module (176) of FIG. 1), a camera module (205, 212, 213) (e.g., a camera module (180) of FIG. 1), a key input device (217), an indicator (not shown) (e.g., an interface (177) of FIG. 1), and a connector (208) (e.g., a connection terminal (178) of FIG. 1). In some embodiments, the electronic device (200) may omit at least one of the components (e.g., a key input device (217) or an indicator) or may additionally include other components.

[0052] The display (201) may be exposed, for example, through a substantial portion of the front plate (202). In some embodiments, at least a portion of the display (201) may be exposed through the front plate (202), which forms the first surface (210A) and the first region (210D) of the side surface (210C). The display (201) may be coupled to or disposed adjacent to a touch sensing circuit, a pressure sensor capable of measuring the intensity (pressure) of a touch, and / or a digitizer for detecting a magnetic field-type stylus pen. In some embodiments, at least a portion of the sensor modules (204, 219), and / or at least a portion of the key input device (217), may be disposed in the first region (210D), and / or the second region (210E).

[0053] The input device (203) may include a microphone (203). In some embodiments, the input device (203) may include a plurality of microphones (203) arranged to detect the direction of sound. The audio output device (207, 214) may include speakers (207, 214). The speakers (207, 214) may include an external speaker (207) and a call receiver (214). In some embodiments, the microphone (203), the speakers (207, 214), and the connector (208) may be arranged in the space of the electronic device (200) and may be exposed to the external environment through at least one hole formed in the housing (210). In some embodiments, the hole formed in the housing (210) may be used in common for the microphone (203) and the speakers (207, 214). In some embodiments, the audio output device (207, 214) may include a speaker (e.g., a piezo speaker) that operates without the hole formed in the housing (210).

[0054] The sensor modules (204, 219) can generate electrical signals or data values ​​corresponding to the internal operating state of the electronic device (200) or the external environmental state. The sensor modules (204, 219) may include, for example, a first sensor module (204) (e.g., a proximity sensor) and / or a second sensor module (not shown) (e.g., a fingerprint sensor) disposed on a first surface (210A) of the housing (210), and / or a third sensor module (219) (e.g., a heart rate monitor (HRM) sensor) disposed on a second surface (210B) of the housing (210). The fingerprint sensor may be disposed on the first surface (210A) of the housing (210). The fingerprint sensor (e.g., an ultrasonic or optical fingerprint sensor) may be disposed under the display (201) on the first surface (210A). The electronic device (200) may further include at least one of a sensor module not shown, for example, a gesture sensor, a gyro sensor, a pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor (204).

[0055] Camera modules (205, 212, 213) may include a first camera device (205) disposed on a first side (210A) of the electronic device (200), a second camera device (212) disposed on a second side (210B), and / or a flash (213). The camera modules (205, 212) may include one or more lenses, an image sensor, and / or an image signal processor. The flash (213) may include, for example, a light emitting diode or a xenon lamp. In some embodiments, two or more lenses (e.g., wide-angle and telephoto lenses) and image sensors may be disposed on one side of the electronic device (200).

[0056] The key input device (217) may be positioned on a side surface (210C) of the housing (210). In another embodiment, the electronic device (200) may not include some or all of the above-mentioned key input devices (217), and the key input devices (217) that are not included may be implemented in other forms, such as soft keys, on the display (201). In another embodiment, the key input device (217) may be implemented using a pressure sensor included in the display (201).

[0057] An indicator (not shown) may be disposed, for example, on a first surface (210A) of the housing (210). The indicator may provide, for example, status information of the electronic device (200) in the form of light. In another embodiment, the light-emitting element may provide a light source that is linked to the operation of, for example, the camera module (205). The indicator may include, for example, light-emitting diodes (LEDs), IR LEDs, and xenon lamps.

[0058] The connector hole (208) may include a connector hole that can accommodate a connector (e.g., a USB connector or an IF module (interface connector port module)) for transmitting and receiving power and / or data with an external electronic device, and / or a connector hole (or earphone jack) that can accommodate a connector for transmitting and receiving audio signals with an external electronic device.

[0059] Some of the camera modules (205, 212), some of the sensor modules (204, 219), or indicators may be arranged to be exposed through the display (201). For example, the camera module (205), the sensor module (204), or the indicator may be arranged to be in contact with the external environment through an opening or a transparent area perforated from the internal space of the electronic device (200) to the front plate (202) of the display (201). According to one embodiment, an area where the display (201) and the camera module (205) face each other may be formed as a transparent area having a certain transmittance as part of an area for displaying content. According to one embodiment, the transparent area may be formed to have a transmittance in a range of about 5% to 20%. Such a transparent area may include an area overlapping with an effective area (e.g., a field of view area) of the camera module (205) through which light passes to be imaged by the image sensor to create an image. For example, the transparent area of ​​the display (201) may include an area having a lower pixel density than the surrounding area. For example, the transparent area may replace the opening. For example, the camera module (205) may include an under-display camera (UDC). In another embodiment, some sensor modules (204) may be arranged to perform their functions without being visually exposed through the front plate (202) in the internal space of the electronic device (200). For example, in such a case, the area of ​​the display (201) facing the sensor module may not require a perforated opening.

[0060] FIG. 3 is an exploded perspective view of an electronic device (300) according to various embodiments.

[0061] According to various embodiments, the electronic device (300) of FIG. 3 may be at least partially similar to the electronic device (101) of FIG. 1 or the electronic device (200) of FIGS. 2A and 2B, or may include other embodiments of the electronic device.

[0062] Referring to FIG. 3, the electronic device (300) may include a side member (310) (e.g., a side bezel structure), a first support member (311) (e.g., a bracket or a support structure), a front plate (320) (e.g., a front cover), a display (330), a printed circuit board (340), a battery (350), a second support member (360) (e.g., a rear case), a coil (370), and a rear plate (380) (e.g., a rear cover). In some embodiments, the electronic device (300) may omit at least one of the components (e.g., the first support member (311) or the second support member (360)) or additionally include other components. At least one of the components of the electronic device (300) may be the same as or similar to at least one of the components of the electronic device (200) of FIGS. 2A and 2B, and any redundant description thereof will be omitted below.

[0063] The first support member (311) may be disposed inside the electronic device (300) and connected to the side member (310), or may be formed integrally with the side member (310). The first support member (311) may be formed of, for example, a metallic material and / or a non-metallic (e.g., polymer) material. The first support member (311) may have a display (330) coupled to one surface and a printed circuit board (340) coupled to the other surface. A touch detection circuit, a pressure sensor capable of measuring the intensity (pressure) of a touch, and / or a digitizer (333) for detecting a magnetic field-type stylus pen may be coupled to the display (330) or disposed opposite or adjacent to it. A printed circuit board (340) may be equipped with a processor (e.g., processor (120) of FIG. 1), memory (e.g., memory (130) of FIG. 1), and / or an interface (e.g., interface (177) of FIG. 1).

[0064] The processor may include, for example, one or more of a central processing unit, an application processor, a graphics processing unit, an image signal processor, a sensor hub processor, or a communication processor.

[0065] The memory may include, for example, volatile memory (e.g., volatile memory (132) of FIG. 1) or non-volatile memory (e.g., non-volatile memory (134) of FIG. 1).

[0066] The interface may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, and / or an audio interface. The interface may electrically or physically connect the electronic device (300) to an external electronic device, for example, and may include a USB connector, an SD card / MMC (multimedia card) connector, or an audio connector.

[0067] A battery (350) (e.g., battery (189) of FIG. 1) is a device for supplying power to at least one component of an electronic device (300), and may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell. At least a portion of the battery (350) may be disposed substantially on the same plane as, for example, a printed circuit board (340). The battery (350) may be integrally disposed within the electronic device (300). In another embodiment, the battery (350) may be disposed so as to be detachable from the electronic device (300).

[0068] The electronic device (300) may include a coil (370) wound in a circular shape. For example, the coil (370) may be positioned between the rear plate (380) and the second support member (360) (e.g., attached to the rear plate (380)). The coil (370) may include a magnetic secure transmission (MST) antenna, a near field communication (NFC) antenna, and / or a wireless charging antenna. The coil (370) may, for example, perform short-range communication with an external electronic device or wirelessly transmit and receive power required for charging. In another embodiment, the antenna structure may be formed by a portion or a combination of the side bezel structure (310) and / or the first support member (311).

[0069] In various embodiments, the electronic device (300) may include a magnet assembly (373) comprising a plurality of magnets arranged adjacent to a coil (370). For example, the magnet assembly (373) may be arranged adjacent to an outermost coil of the coil (370) and surrounding the outermost coil.

[0070] In various embodiments, the electronic device (300) may include a first magnetic field shielding sheet (391) to shield a magnetic field generated in a direction toward the interior of the electronic device (300) from the magnet assembly (373). For example, the first magnetic field shielding sheet (391) may be attached to the magnet assembly (373). For example, the first magnetic field shielding sheet (391) may have an area substantially corresponding to an area of ​​the magnet assembly (373) including a plurality of magnets.

[0071] According to various embodiments, the first magnetic field shielding sheet (391) may include a soft magnetic material having a high saturation magnetic flux density (Bs) and / or a high magnetic permeability. The soft magnetic material may include a magnetic material having shielding properties such as a high saturation magnetic flux density of 2.0 T (tesla) or more and a relative magnetic permeability of about 2000 or more. The soft magnetic material that may be used as the first magnetic field shielding sheet (391) may include a material such as a soft magnetic ferrite or a nickel / iron / cobalt alloy material used for magnetic field shielding. For example, it may include SPCC (steel plate cold commercial), permalloy, stainless steel plate (e.g., SUS430, SUS304, SUS630), carbon steel plate (e.g., S45C), and / or Mu-metal. For example, in the case of SPCC, the saturation flux density (Bs) can be about 2.0 T and the permeability can be about 2475.

[0072] In various embodiments, a second magnetic field shielding sheet (392) may be positioned opposite the coil (370) and the first magnetic field shielding sheet (391). For example, the second magnetic field shielding sheet (392) may shield a magnetic field generated in an inward direction of the electronic device (300) from the coil (370) and / or the magnet assembly (373).

[0073] According to various embodiments, the second magnetic field shielding sheet (392) may use a shielding material having low electrical conductivity to prevent eddy current and a heat dissipation effect, taking into account the charging performance of the coil (370). The second magnetic field shielding sheet (392) may include a soft magnetic material having a saturation magnetic flux density (Bs) and / or a magnetic permeability that is somewhat lower than those of the first magnetic field shielding sheet (391). The soft magnetic material that can be used as the second magnetic field shielding sheet (392) may include, for example, nano-crystiline having shielding properties of a saturation magnetic flux density of about 1.2 T and a magnetic permeability of about 2100. The soft magnetic material that can be used as the second magnetic field shielding sheet (392) may include, for example, a material such as a soft magnetic ferrite or a nickel / iron / cobalt alloy material used for magnetic field shielding.

[0074] In various embodiments, a third magnetic field shielding sheet (393) may be disposed between the display (330) and the second magnetic field shielding sheet (392). For example, the third magnetic field shielding sheet (393) may be disposed between the digitizer (333) and the second magnetic field shielding sheet (392). For example, the third magnetic field shielding sheet (393) may be attached to the back surface (e.g., toward the inside of the electronic device) of the digitizer (333). For example, the third magnetic field shielding sheet (393) may shield a magnetic field generated from the coil (370) and the magnet assembly (373) toward the display (330) or the digitizer (333).

[0075] According to one embodiment, the digitizer (333) may include, for example, a flexible printed circuit board, a magnetic layer including a sand dust magnetic material or a magnetic metal powder (MMP) material, and / or a metal layer including a metal such as Cu or Al.

[0076] According to one embodiment, a third magnetic field shielding sheet (393) attached to the back surface (e.g., toward the inside of the electronic device) of the digitizer (333) can shield a magnetic field generated by the magnet assembly (373) that affects the performance of the digitizer (333).

[0077] According to various embodiments, the third magnetic field shielding sheet (393) can prevent eddy current induced in the digitizer (333) and can use a shielding material having a heat dissipation effect. The third magnetic field shielding sheet (393) can include a soft magnetic material having a saturation magnetic flux density (Bs) and / or a magnetic permeability that is somewhat lower than those of the first magnetic field shielding sheet (391). The soft magnetic material that can be used as the third magnetic field shielding sheet (393) can include, for example, nano-crystiline having shielding properties of a saturation magnetic flux density of about 1.6 T and a magnetic permeability of about 1500. The soft magnetic material that can be used as the third magnetic field shielding sheet (393) can include, for example, a material such as a soft magnetic ferrite or a nickel / iron / cobalt alloy material used for magnetic field shielding.

[0078] FIG. 4 is an exploded perspective view of an electronic device (400) and a case device (401) according to various embodiments.

[0079] According to various embodiments, the electronic device (400) of FIG. 4 may be at least partially similar to the electronic device (101) of FIG. 1 or the electronic device (200) of FIGS. 2A and 2B, or may include other embodiments of the electronic device.

[0080] At least one of the components of the electronic device (400) may be identical to or similar to at least one of the components of the electronic device (300) of FIG. 3, and any overlapping description will be omitted below.

[0081] Referring to FIG. 4, the electronic device (400) may include a side member (410) (e.g., a side bezel structure), a first support member (411) (e.g., a bracket or a support structure), a front plate (420) (e.g., a front cover), a display (430), a printed circuit board (440), a battery (450), a second support member (460) (e.g., a rear case), a coil (470), and a rear plate (480) (e.g., a rear cover). In some embodiments, the electronic device (400) may omit at least one of the components (e.g., the first support member (411) or the second support member (460)) or may additionally include other components.

[0082] The first support member (411) may be placed inside the electronic device (400) and connected to the side member (410), or may be formed integrally with the side member (410).

[0083] The electronic device (400) may include a coil (470) wound in a circular shape. For example, the coil (470) may be positioned between the rear plate (480) and the second support member (460) (e.g., attached to the rear plate (480)). The coil (470) may include a magnetic secure transmission (MST) antenna, a near field communication (NFC) antenna, and / or a wireless charging antenna. The coil (470) may, for example, perform short-range communication with an external electronic device or wirelessly transmit and receive power required for charging. In another embodiment, the antenna structure may be formed by a portion or a combination of the side bezel structure (410) and / or the first support member (411).

[0084] Referring to FIG. 4, the case device (401) may have a form that surrounds at least a portion of at least one side of the electronic device (400) when mounted on the electronic device.

[0085] According to various embodiments, the case device (401) may include a magnet assembly (473) including a plurality of magnets arranged so as to be positioned adjacent to a coil (470) of the electronic device (400) when mounted on the electronic device (400). For example, the magnet assembly (473) may have a shape and structure identical or similar to the magnet assembly (373) of the electronic device (300) described with reference to FIG. 3. For example, the magnet assembly (473) may be implemented so as to be positioned adjacent to an outermost coil of the coil (470) and surrounding the outermost coil when the case device (401) is mounted on the electronic device (400).

[0086] In various embodiments, the case device (401) may include a first magnetic field shielding sheet (491) to shield a magnetic field generated in a direction toward the interior of the electronic device (400) from the magnet assembly (473). For example, the first magnetic field shielding sheet (491) may have an area substantially corresponding to an area of ​​the magnet assembly (473) including a plurality of magnets. For example, the first magnetic field shielding sheet (491) may be attached to the magnet assembly (473).

[0087] According to various embodiments, the first magnetic field shielding sheet (491) may include a soft magnetic material having a high saturation magnetic flux density (Bs) and / or a high permeability. The soft magnetic material that can be used as the first magnetic field shielding sheet (491) of the case device (401) is described in the description of the first magnetic field shielding sheet (391) of the electronic device (300) of FIG. 3, and thus a detailed description thereof is omitted here.

[0088] In various embodiments, a second magnetic field shielding sheet (492) may be placed inside the electronic device (400) at a position opposite to the coil (470) of the electronic device (400) and the first magnetic field shielding sheet (491) of the case device (401). For example, the second magnetic field shielding sheet (492) may shield a magnetic field generated in an inward direction of the electronic device (400) from the coil (470) and / or the magnet assembly (473).

[0089] According to various embodiments, the second magnetic field shielding sheet (492) may use a shielding material having low electrical conductivity to prevent eddy current and a heat dissipation effect, taking into account the charging performance of the coil (470). The second magnetic field shielding sheet (492) may include a soft magnetic material having a slightly lower saturation magnetic flux density (Bs) and / or magnetic permeability than the first magnetic field shielding sheet (491). The soft magnetic material that can be used as the second magnetic field shielding sheet (492) is described in the description of the second magnetic field shielding sheet (492) of the electronic device (300) of FIG. 3, and thus a detailed description thereof is omitted here.

[0090] In various embodiments, a third magnetic field shielding sheet (493) may be disposed between the display (430) and the second magnetic field shielding sheet (492). For example, the third magnetic field shielding sheet (493) may be disposed between the digitizer (433) and the second magnetic field shielding sheet (492). For example, the third magnetic field shielding sheet (493) may be attached to the back surface (e.g., toward the inside of the electronic device) of the digitizer (433). For example, the third magnetic field shielding sheet (493) may shield a magnetic field generated from the coil (470) and the magnet assembly (473) toward the display (430) or the digitizer (433).

[0091] According to various embodiments, the third magnetic field shielding sheet (493) can prevent eddy current induced in the digitizer (433) and can use a shielding material having a heat dissipation effect. The third magnetic field shielding sheet (493) can include a soft magnetic material having a saturation magnetic flux density (Bs) and / or a magnetic permeability that is somewhat lower than that of the first magnetic field shielding sheet (491). The soft magnetic material that can be used as the third magnetic field shielding sheet (493) is described in detail in the description of the third magnetic field shielding sheet (493) of FIG. 3, and thus a detailed description thereof is omitted here.

[0092] FIG. 5 is a drawing schematically illustrating an operation of a power transmitting device (530) charging a power receiving device (520) according to various embodiments.

[0093] Referring to FIG. 5, the power transmission device (530) can wirelessly transmit power to charge the power reception device (520). For example, when the battery (e.g., battery (189) of FIG. 1) of the power reception device (520) is discharged or the available power amount is below a specified level, the power transmission device (530) can wirelessly transmit power to charge the battery (189) of the power reception device (520).

[0094] In various embodiments, the power receiving device (520) of FIG. 5 may include the electronic device (101) disclosed in FIG. 1 (or the electronic device (200) of FIGS. 2A and 2B, the electronic device (300) of FIG. 3, or the electronic device (400) equipped with the case device (401) of FIG. 4). For example, the power receiving device (520) may include at least one of a smart phone, a wearable device (e.g., a watch), or a tablet. The power transmitting device (530) may be the same as or similar to the power receiving device (520). For example, the power transmitting device (530) may include a wireless charging pad, a tablet, or a smart phone. The power transmitting device (530) may be implemented by at least one of the electronic devices (101, 102, and / or 104) disclosed in FIG. 1. The power transmission device (530) may include at least one of the components of the electronic device (101) disclosed in FIG. 1.

[0095] In various embodiments, the power transmission device (530) may have a circular housing, but is not limited thereto, and the power transmission device (530) may have a square, rectangular, or oval housing. The power transmission device (530) may include a coil disposed within an interior space of the housing of the power transmission device (530). The power transmission device (530) may include a magnet assembly comprising a plurality of magnets disposed adjacent to and spaced apart from an outermost coil of the coil.

[0096] FIGS. 6A, 6B, and 6C are drawings illustrating coils (370, 470) and magnet assemblies (373, 473) arranged in an internal space of a power receiving device (e.g., power receiving device (520) of FIG. 5) according to various embodiments.

[0097] Referring to FIGS. 6A, 6B, and 6C, a power receiving device (e.g., a power receiving device (520) of FIG. 5) can wirelessly receive power from a power transmitting device (e.g., a power transmitting device (530) of FIG. 5) when brought into contact with the power transmitting device. The power receiving device (520) of FIG. 5 may include the electronic device (101) disclosed in FIG. 1 (or the electronic device (200) of FIGS. 2A and 2B, the electronic device (300) of FIG. 3, or the electronic device (400) equipped with the case device (401) of FIG. 4). Hereinafter, the power receiving device (520) of FIG. 5 will be described with reference to the electronic device (300) of FIG. 3 as an example, but may also be applied to the electronic device (400) equipped with the case device (401) of FIG. 4.

[0098] In one embodiment, the electronic device (300) may include a magnet assembly (e.g., the magnet assembly (373) of FIG. 3) including a plurality of magnets that surround a circularly wound coil (e.g., the coil (370) of FIG. 3). For example, the plurality of magnets of the magnet assembly (373) may be arranged adjacent to an outermost coil of the coil (370), spaced apart from the outermost coil, and surrounding the outermost coil. For example, the magnet assembly (373) of the power receiving device (300) may be implemented in a closed loop shape. In one embodiment, the magnet assembly (373) may be implemented in a substantially arched shape and may include a plurality of magnets each having a rectangular or trapezoidal shape.

[0099] FIG. 6A illustrates a cross-sectional view taken along line A-A' of FIG. 5. When the power receiving device (520) is in contact with (or attached to) the power transmitting device (530), the coil of the power receiving device (520) (e.g., the coil (370) of FIG. 3) and the coil (not shown) of the power transmitting device (530) can be aligned by coupling between the magnet assembly (373) including a plurality of magnets of the power receiving device (520) and the magnet assembly (533) including a plurality of magnets of the power transmitting device (530).

[0100] According to one embodiment, the magnet assembly (373) of the power receiving device (520) may be magnetized with opposite polarities of magnets at positions where they contact (or are attached) each other for coupling with the magnet assembly (533) including a plurality of magnets of the opposing power transmitting device (530).

[0101] According to one embodiment, a first magnetic field shielding sheet (391) may be disposed in the power receiving device (520) to shield a magnetic field generated from the magnet assembly (533) of the power transmitting device (530) as well as the magnet assembly (373) of the power receiving device (520).

[0102] In one embodiment, the power receiving device (520) may have a second magnetic field shielding sheet (392) positioned opposite the coil (370) and the first magnetic field shielding sheet (391) to shield a magnetic field generated in an inward direction of the power receiving device (520) from the coil (370) and / or the magnet assembly (373).

[0103] According to one embodiment, the distance between the magnet assembly (373, 473) or the first magnetic field shielding sheet (391, 491) and the second magnetic field shielding sheet (392, 492) may vary depending on the experimental value, and when the magnet assembly (473) and the first magnetic field shielding sheet (491) are arranged in the case device (401), the distance may be implemented to be greater than when the magnet assembly (373) and the first magnetic field shielding sheet (391) are arranged in the electronic device (300).

[0104] In various embodiments, a third magnetic field shielding sheet (393) may be additionally placed between the display (330) and the second magnetic field shielding sheet (392) to further shield a magnetic field generated in an inward direction of the power receiving device (520) from the coil (370) and / or the magnet assembly (373). For example, the third magnetic field shielding sheet (393) may shield a magnetic field generated from the coil (370) and the magnet assembly (373) toward the display (330) or the digitizer (333).

[0105] Referring to FIG. 6B, the magnet assembly (373) of the power receiving device (520) may include a plurality of first magnets (610) arranged to surround the coil (370), and a plurality of second magnets (620) arranged to surround the plurality of first magnets (610) at positions spaced apart from the plurality of first magnets (610) by a predetermined distance. For example, the predetermined distance spaced apart between the plurality of first magnets (610) and the plurality of second magnets (620) may form a gap (630).

[0106] In one embodiment, the plurality of first magnets (610) may include a first layer (611) and a second layer (612) that is an upper layer of the first layer (611), and the plurality of second magnets (620) may include a third layer (623) and a fourth layer (624) that is an upper layer of the third layer (623). The plurality of first magnets (610) and the plurality of second magnets (620) may be magnetized in opposite perpendicular directions, and the first layer (611) and the fourth layer (624) may have a first polarity, and the second layer (612) and the third layer (623) may have a second polarity that is an opposite polarity to the first polarity.

[0107] According to one embodiment, a first magnetic field shielding sheet (391) may be attached to an area substantially corresponding to an area of ​​a magnet assembly (373) formed by a plurality of first magnets (610) and a plurality of second magnets (620).

[0108] Referring to FIG. 6c, a first magnetic field shielding sheet (391) can be attached to an area substantially corresponding to the area of ​​a magnet assembly (373) including a plurality of magnets.

[0109] According to one embodiment, the first magnetic field shielding sheet (391) may include a specific region (395) in which a soft magnetic material, which is a material constituting the first magnetic field shielding sheet, is not disposed in at least a portion of the first magnetic field shielding sheet. For example, the specific region (395) may not shield a magnetic field generated in a direction toward the inside of the electronic device (300). For example, the specific region may be defined by not disposing a soft magnetic material, which is a material constituting the first magnetic field shielding sheet, in at least a portion of the first magnetic field shielding sheet (391). For example, the specific region may be disposed in multiple regions of the first magnetic field shielding sheet (391).

[0110] According to one embodiment, the width (W) of at least one specific region (395) disposed on the first magnetic field shielding sheet (391) may be smaller than the length (L) of one of the first magnets (373-1) and / or the second magnet (373-2) of the plurality of first magnets (610) and the plurality of second magnets (620).

[0111] According to one embodiment, at least one specific area (395) disposed on the first magnetic field shielding sheet (391) may be disposed at a position facing the first magnet (373-1) and the second magnet (373-2).

[0112] FIG. 7 is a drawing illustrating a coil (470) disposed in an internal space of a power receiving device (e.g., power receiving device (520) of FIG. 5) and a magnet assembly (473) disposed in an internal space of a case device (e.g., case device (401) of FIG. 4) according to various embodiments.

[0113] Referring to FIG. 7, a power receiving device (e.g., a power receiving device (520) of FIG. 5) can wirelessly receive power from a power transmitting device (e.g., a power transmitting device (530) of FIG. 5) when brought into contact with the power receiving device. The power receiving device (520) of FIG. 5 may include an electronic device (400) equipped with a case device (401) of FIG. 4. Hereinafter, the power receiving device (520) of FIG. 5 will be described using the electronic device (400) and the case device (401) of FIG. 4 as examples.

[0114] In one embodiment, the electronic device (400) may include a coil wound in a circular shape (e.g., coil (470) of FIG. 3), and the case device (401) may include a magnet assembly (e.g., magnet assembly (473) of FIG. 4) including a plurality of magnets in a shape surrounding the coil (470). For example, the plurality of magnets of the magnet assembly (473) may be arranged adjacent to an outermost coil of the coil (470), spaced apart from the outermost coil, and surrounding the outermost coil. For example, the magnet assembly (473) of the case device (401) may be implemented in a closed loop shape. In one embodiment, the magnet assembly (473) may include a plurality of magnets each having a substantially rectangular or trapezoidal shape.

[0115] FIG. 7 illustrates a cross-sectional view taken along line A-A' of FIG. 5. When a power receiving device (520) equipped with a case device (401) is brought into contact with (or attached to) a power transmitting device (530), a coil of the power receiving device (520) (e.g., coil (470) of FIG. 4) and a coil (not shown) of the power transmitting device (530) can be aligned by coupling between a magnet assembly (473) including a plurality of magnets of the case device (401) and a magnet assembly including a plurality of magnets of the power transmitting device (530).

[0116] According to one embodiment, the magnet assembly (473) of the case device (401) may be magnetized with opposite polarities of magnets at positions where they contact (or are attached) each other for coupling with a magnet assembly comprising a plurality of magnets of an opposing power transmission device (530).

[0117] According to one embodiment, a first magnetic field shielding sheet (491) may be disposed in the case device (401) to shield a magnetic field generated from the magnet assembly (473) of the case device (401) and / or the magnet assembly (533) of the power transmitting device (530) and directed toward the power receiving device (520).

[0118] In one embodiment, the power receiving device (520) may have a second magnetic field shielding sheet (492) positioned opposite the coil (470) and the first magnetic field shielding sheet (491) of the case device (401) to shield a magnetic field generated in an inward direction of the power receiving device (520) from the coil (470) and / or the magnet assembly (473).

[0119] In various embodiments, a third magnetic field shielding sheet (493) may be additionally placed between the display (430) of the power receiving device (520) and the second magnetic field shielding sheet (492) to further shield a magnetic field generated in an inward direction of the power receiving device (520) from the coil (470) and / or the magnet assembly (473). For example, the third magnetic field shielding sheet (493) may shield a magnetic field generated in the direction of the display (430) or the digitizer (433) from the coil (470) and the magnet assembly (473).

[0120] The configuration of the magnet assembly (473) and the first magnetic field shielding sheet (491) of the case device (401) of FIG. 7 is the same as or similar to the configuration of the magnet assembly (373) and the first magnetic field shielding sheet (491) of the electronic device (300) described with reference to FIGS. 6a, 6b, and 6c, and a detailed description thereof is omitted here.

[0121] FIG. 8 is a cross-sectional view of a magnet assembly of a power transmitting device (e.g., power transmitting device (530) of FIG. 5) and a power receiving device (e.g., power receiving device (520) of FIG. 5) according to various embodiments, and is a drawing showing the direction of magnetic force lines formed inside the magnet assembly.

[0122] Referring to FIG. 8, a magnet assembly (e.g., a magnet assembly (373, 473) of FIG. 3 or FIG. 4) of a power receiving device (e.g., a power receiving device (520) of FIG. 5) may be coupled with a magnet assembly (800) of a power transmitting device (e.g., a power transmitting device (530) of FIG. 5) so that a coil (e.g., a coil (370 or 470) of FIG. 3 or FIG. 4) of the power receiving device (520) and a coil (not shown) of the power transmitting device (530) are aligned for power transmission and reception. The power receiving device (520) may include the electronic device (101) disclosed in FIG. 1 (or the electronic device (200) of FIGS. 2A and 2B, the electronic device (300) of FIG. 3, or the electronic device (400) equipped with the case device (401) of FIG. 4). Hereinafter, the power receiving device (520) of FIG. 5 is described by taking the electronic device (300) of FIG. 3 as an example, but the embodiments are not limited thereto and can also be applied when a case device (401) is mounted on the electronic device (400) of FIG. 4.

[0123] According to one embodiment, the magnet assemblies (373, 473) of the power receiving device (520) may have magnets at positions where they contact (or are attached) each other for coupling with the magnet assemblies (800) including a plurality of magnets of the opposing power transmitting device (530), so that the magnetizations of the magnets can be magnetized with opposite polarities.

[0124] According to one embodiment, a first magnetic field shielding sheet (391, 491) may be arranged in the power receiving device (520) to shield a magnetic field generated from the magnet assembly (373, 473) of the power receiving device (520) as well as the magnet assembly (800) of the power transmitting device (530).

[0125] According to one embodiment, a first magnetic field shielding sheet (391, 491) may be attached to an area substantially corresponding to the area of ​​a magnet assembly (373, 473) formed by a plurality of first magnets (610) and a plurality of second magnets (620).

[0126] According to one embodiment, the magnet assembly (373, 473) of the power receiving device (520) may include a plurality of first magnets (610) arranged to surround the coils (370, 470), and a plurality of second magnets (620) arranged to surround the plurality of first magnets (610) at positions spaced apart from the plurality of first magnets (610) by a predetermined distance. For example, the predetermined distance spaced apart between the plurality of first magnets (610) and the plurality of second magnets (620) may form a gap (630). For example, the gap (630) may be formed as an empty space. For example, the gap (630) may be filled with a non-magnetic material. For example, the gap (630) may be filled with a material that is the same material as the plurality of first magnets (610) and / or the plurality of second magnets (620), but is not magnetized and thus has no polarity.

[0127] In one embodiment, the plurality of first magnets (610) may include a first layer (611) and a second layer (612) that is an upper layer of the first layer (611), and the plurality of second magnets (620) may include a third layer (623) and a fourth layer (624) that is an upper layer of the third layer (623). The plurality of first magnets (610) and the plurality of second magnets (620) may be magnetized in opposite perpendicular directions, and the first layer (611) and the fourth layer (624) may have a first polarity, and the second layer (612) and the third layer (623) may have a second polarity that is an opposite polarity to the first polarity.

[0128] According to one embodiment, the magnet assembly (800) of the power transmitting device (530) may include a plurality of first magnets (810) corresponding to the plurality of first magnets (610) of the power receiving device (520), and a plurality of second magnets (810) corresponding to the plurality of second magnets (620) of the power receiving device (520). The plurality of second magnets (820) may be positioned at a predetermined distance from the plurality of first magnets (810). The predetermined distance between the plurality of second magnets (820) and the plurality of second magnets (820) may form an air gap (830). The gap (630) formed by the predetermined distance between the plurality of first magnets (610) and the plurality of second magnets (620) of the power receiving device (520) may be implemented to correspond to the area of ​​the gap (830) formed by the predetermined distance between the plurality of first magnets (810) and the plurality of second magnets (810) of the power transmitting device (530). A magnetic field shielding sheet (840) may be attached to the magnet assembly (800) of the power transmitting device (530).

[0129] According to one embodiment, the magnet assemblies (373, 473) of the power receiving device (520) can form a magnetic flux closed loop that returns from the plurality of first magnets (610) of the magnet assemblies (373, 473) through the first magnetic field shielding sheets (391, 491) through the plurality of second magnets (620) to the magnet assemblies (800) of the power transmitting device (530) and back to the plurality of first magnets (610) of the power receiving device (520) when the power receiving device (520) including the corresponding magnet assemblies (800) is brought into proximity.

[0130] According to one embodiment, the first magnet (610) and the second magnet (620) form a vertical magnetic field by the gap (630) formed in the magnet assembly (373, 473) of the power receiving device (520), and the first magnetic field shielding sheet (391, 491) forms a horizontal magnetic field, thereby forming a closed loop within the magnet assembly (373, 473) to prevent magnetic flux from leaking to the outside.

[0131] According to one embodiment, the gap (630) formed in the magnet assembly (373, 473) of the power receiving device (520) is formed so that its position and / or area correspond to the gap (830) formed in the magnet assembly (800) of the power transmitting device (530), thereby forming a more appropriate magnetic flux closed loop, and thus the influence of the magnetic field on the digitizer (333, 433) can be further reduced.

[0132] FIG. 9 is a diagram for comparing the change in the magnetic field affecting the digitizer (333, 433) according to the magnet area width of the magnet assembly (e.g., the magnet assembly (373, 473) of FIG. 3 or FIG. 4) according to various embodiments.

[0133] In FIG. 9, the horizontal axis of the graph may represent a magnetic region of a magnet assembly (373, 473) of a power receiving device (520), for example, a region having polarities of a plurality of first magnets (610) and a plurality of second magnets (620), and accordingly, the width of the magnetic region may increase and the area of ​​the gap (630) may decrease as one moves to the right of the horizontal axis. In addition, the vertical axis of the graph may represent a maximum magnetic field or magnetic flux density (G) generated by the magnet assembly (373, 473) on a digitizer surface.

[0134] Referring to FIG. 9, when the area of ​​the gap (630) is relatively large (left part of the graph), the maximum magnetic field (G) exerted on the digitizer may be relatively large, and when the area of ​​the gap (630) is small (right part of the graph), the maximum magnetic field (G) exerted on the digitizer may also be relatively large. It can be seen that the maximum magnetic field (G) exerted on the digitizer may be relatively smallest at a point where the width of the magnet area of ​​the magnet assembly (373, 473) in the middle right of the graph is about 1 to 2 mm and the area of ​​the gap (630) is about 1 to 2 mm. This point may also correspond to a point where the area of ​​the gap (630) of the magnet assembly (373, 473) of the power receiving device (520) is substantially the same as the area of ​​the gap (830) of the magnet assembly (800) of the power transmitting device (530).

[0135] FIG. 10 is a drawing for comparing changes in the magnetic field influence on a digitizer according to the thickness of a first magnetic field shielding sheet (e.g., the first magnetic field shielding sheet (391, 491) of FIG. 3 or FIG. 4) according to various embodiments.

[0136] In FIG. 10, the horizontal axis of the graph may represent the thickness of the first magnetic field shielding sheet (391, 491) of the power receiving device (520). For example, the area of ​​the first magnetic field shielding sheet (391, 491) will decrease as it goes to the right of the horizontal axis. The vertical axis of the graph represents the effect of the magnetic field generated by the magnet assembly (e.g., the magnet assembly (373, 473) of FIG. 3 or FIG. 4) on the digitizer surface, and graph (a) may represent the average magnetic field or magnetic flux density (G), and graph (b) may represent the maximum magnetic field or magnetic flux density (G).

[0137] Referring to FIG. 10, as the thickness of the first magnetic field shielding sheet (391, 491) relatively increases (right part of the graph), the average magnetic field and the maximum magnetic field (G) affecting the digitizer may relatively decrease, but it can be seen that beyond a certain thickness (e.g., about 0.4 mm), even if the thickness increases, the average magnetic field and the maximum magnetic field (G) no longer substantially decrease. Accordingly, it can be seen that the thickness of the first magnetic field shielding sheet (391, 491) can be appropriately adjusted, for example, to within about 1 mm, while reducing the influence of the magnetic field (G) on the digitizer.

[0138] FIG. 11 is a cross-sectional view of a magnet assembly of a power transmitting device (e.g., power transmitting device (530) of FIG. 5) and a power receiving device (e.g., power receiving device (520) of FIG. 5) according to various embodiments.

[0139] According to various embodiments, a magnet assembly (e.g., a magnet assembly (373, 473) of FIG. 3 or 4) of a power receiving device (e.g., a power receiving device (520) of FIG. 5) may be coupled with a magnet assembly (800) of a power transmitting device (e.g., a power transmitting device (530) of FIG. 5) such that a coil (e.g., a coil (370 or 470) of FIG. 3 or 4) of the power receiving device (520) and a coil (not shown) of the power transmitting device (530) are aligned for power transmission and reception. The power receiving device (520) may include the electronic device (101) disclosed in FIG. 1 (or the electronic device (200) of FIGS. 2A and 2B, the electronic device (300) of FIG. 3, or the electronic device (400) equipped with the case device (401) of FIG. 4). Hereinafter, the power receiving device (520) of FIG. 5 is described by taking the electronic device (300) of FIG. 3 as an example, but the embodiments are not limited thereto and can also be applied when a case device (401) is mounted on the electronic device (400) of FIG. 4.

[0140] According to one embodiment, the magnet assembly (373, 473) of the power receiving device (520) may include a plurality of first magnets (610) arranged to surround the coils (370, 470), and a plurality of second magnets (620) arranged to surround the plurality of first magnets (610) at positions spaced apart from the plurality of first magnets (610) by a predetermined distance. For example, the predetermined distance spaced apart between the plurality of first magnets (610) and the plurality of second magnets (620) may form a gap (630). For example, the gap (630) may be filled with a non-magnetic material. For example, the gap (630) may be filled with a material that is the same material as the plurality of first magnets (610) and / or the plurality of second magnets (620), but is not magnetized and thus has no polarity.

[0141] According to one embodiment, a horizontally magnetized magnet (1110) may be placed at a predetermined distance between a plurality of first magnets (610) and a plurality of second magnets (620). For example, the area of ​​the magnet (1110) may correspond to the area of ​​the gap (630).

[0142] In one embodiment, the plurality of first magnets (610) may include a first layer (611) and a second layer (612) that is an upper layer of the first layer (611), and the plurality of second magnets (620) may include a third layer (623) and a fourth layer (624) that is an upper layer of the third layer (623). The plurality of first magnets (610) and the plurality of second magnets (620) may be magnetized in opposite perpendicular directions, and the first layer (611) and the fourth layer (624) may have a first polarity, and the second layer (612) and the third layer (623) may have a second polarity that is an opposite polarity to the first polarity.

[0143] According to one embodiment, the magnet (1110) may be magnetized with a second polarity at a portion thereof opposite the plurality of first magnets (610) and with a first polarity at a portion thereof opposite the plurality of second magnets (620).

[0144] According to one embodiment, the magnet assembly (800) of the power transmitting device (530) may include a plurality of first magnets (810) corresponding to the plurality of first magnets (610) of the power receiving device (520), and a plurality of second magnets (810) corresponding to the plurality of second magnets (620) of the power receiving device (520). The plurality of second magnets (820) may be arranged at a position spaced apart from the plurality of first magnets (810) by a predetermined distance. The predetermined distance between the plurality of second magnets (820) and the plurality of second magnets (820) may form an air gap (830). A magnetic shielding sheet (840) may be attached to the magnet assembly (800) of the power transmitting device (530).

[0145] According to one embodiment, the magnet assemblies (373, 473) of the power receiving device (520) can form a magnetic flux closed loop that returns from the plurality of first magnets (610) of the magnet assemblies (373, 473) through the first magnetic field shielding sheets (391, 491) through the plurality of second magnets (620) to the magnet assemblies (800) of the power transmitting device (530) and back to the plurality of first magnets (610) of the power receiving device (520) when the power receiving device (520) including the corresponding magnet assemblies (800) is brought into proximity.

[0146] According to one embodiment, the first magnet (610) and the second magnet (620) form a vertical magnetic field by the magnet (1110) placed in the gap (630) formed in the magnet assembly (373, 473) of the power receiving device (520), and the first magnetic field shielding sheet (391, 491) forms a horizontal magnetic field, thereby forming a closed loop within the magnet assembly (373, 473) so that the magnetic flux does not leak to the outside.

[0147] According to one embodiment, a magnet (1110) is placed between the first magnet (610) and the second magnet (620) of the power receiving device (520), so that the magnet (1110) forms a horizontal magnetic field together with the first magnetic field shielding sheet (391, 491), thereby sufficiently shielding the magnetic field generated from the magnet assembly (373, 473) even when the thickness of the first magnetic field shielding sheet (391, 491) is relatively thin.

[0148] FIG. 12 is a drawing for comparing changes in the magnetic field influence on a digitizer according to the thickness of a first magnetic field shielding sheet (e.g., the first magnetic field shielding sheet (391, 491) of FIG. 3 or FIG. 4) according to various embodiments.

[0149] In FIG. 12, the horizontal axis of the graph may represent the thickness of the first magnetic field shielding sheet (391, 491) of the power receiving device (520). For example, the area of ​​the first magnetic field shielding sheet (391, 491) may decrease as one moves to the right of the horizontal axis. The vertical axis of the graph may represent the effect of a magnetic field generated by a magnet assembly (e.g., a magnet assembly (373, 473) of FIG. 3 or 4) on a digitizer surface, for example, an average magnetic field or magnetic flux density (G).

[0150] Referring to FIG. 12, the change line (1201) may represent the average magnetic field or magnetic flux density (G) applied to the digitizer depending on the thickness of the first magnetic field shielding sheet (391, 491) of FIG. 8.

[0151] The change line (1202) of FIG. 12 may represent an average magnetic field or magnetic flux density (G) applied to the digitizer according to the thickness of the first magnetic field shielding sheet (391, 491) when a magnetic body (1110) is placed at a predetermined distance between a plurality of first magnets (610) and a plurality of second magnets (620) of FIG. 11.

[0152] According to various embodiments, referring to change lines (1201) and change lines (1202), it can be seen that as the thickness of the first magnetic field shielding sheet (391, 491) increases, the average magnetic field or magnetic flux density (G) affecting the digitizer decreases. In addition, it can be seen that beyond a certain thickness (e.g., about 0.4 mm), even if the thickness increases, the average magnetic field and the maximum magnetic field (G) no longer substantially decrease. Therefore, it can be seen that the thickness of the first magnetic field shielding sheet (391, 491) can be appropriately adjusted to, for example, 0.5 mm or less while reducing the influence of the magnetic field (G) on the digitizer.

[0153] According to various embodiments, it can be seen that the average magnetic field or magnetic flux density (G) affecting the digitizer is relatively smaller for the change line (1202) than for the change line (1201) even at the same thickness.

[0154] According to various embodiments, when the magnets (1110) are arranged at a predetermined distance between the plurality of first magnets (610) and the plurality of second magnets (620), it can be seen that the average magnetic field or magnetic flux density (G) exerted on the digitizer is relatively smaller than when the magnets (1110) are not arranged, depending on the thickness of the first magnetic field shielding sheet (391, 491). Accordingly, when the magnets (1110) are arranged, the thickness of the first magnetic field shielding sheet (391, 491) can be implemented to be relatively thinner.

[0155] FIG. 13 is a diagram for comparing the magnetic field saturation of a second magnetic field shielding sheet with or without a first magnetic field shielding sheet according to various embodiments.

[0156] Referring to FIG. 13, in the case of a general magnet (a) in which a first magnetic field shielding sheet (e.g., the first magnetic field shielding sheet (391, 491) of FIG. 3 or FIG. 4) is not arranged, it can be seen that the magnetic field distributions directed toward the outside and inside of the electronic device (e.g., the electronic device (300, 400) of FIG. 3 or FIG. 4) are the same or similar.

[0157] According to various embodiments, in the case of the magnet assembly (e.g., the magnet assembly (373, 473) of FIG. 3 or 4) (b), by arranging the first magnetic field shielding sheet (e.g., the first magnetic field shielding sheet (391, 491) of FIG. 3 or 4), the magnetic field distribution directed toward the outside of the electronic device (e.g., the electronic device (300 or 400) of FIG. 3 or 4) may have a relatively higher density than the magnetic field distribution directed toward the inside of the electronic device (300 or 400).

[0158] Accordingly, it can be seen that the magnetic field saturation in the second magnetic field shielding sheet (e.g., the second magnetic field shielding sheet (392, 492) of FIG. 3 or FIG. 4) is relatively lower than the saturation (d) of the magnet assembly (b) in which the first magnetic field shielding sheet (391, 491) is arranged, compared to the saturation (c) of the general magnet (a) in which the first magnetic field shielding sheet (391, 491) is not arranged, according to various embodiments.

[0159] FIG. 14 is a drawing for comparing magnetic field radiation patterns according to the presence or absence of a first magnetic field shielding sheet according to various embodiments.

[0160] Referring to FIG. 14, in the case of a magnet assembly in which a first magnetic field shielding sheet (e.g., the first magnetic field shielding sheet (391, 491) of FIG. 3 or FIG. 4) is not arranged, in the case of (a) when not coupled with a power transmission device (e.g., the power transmission device (530) of FIG. 5) and in the case of (c) when coupled, the magnetic field distributions directed to the outside and inside of the electronic device (e.g., the electronic device (300, 400) of FIG. 3 or FIG. 4) may be the same or similar.

[0161] According to various embodiments, in the case of a magnet assembly (e.g., a magnet assembly (373, 473) of FIG. 3 or FIG. 4), when a first magnetic field shielding sheet (e.g., a first magnetic field shielding sheet (391, 491) of FIG. 3 or FIG. 4) is placed, in the case of not being coupled with the power transmission device (530) (c) and in the case of being coupled with the power transmission device (530), it can be seen that the magnetic field distribution directed to the outside of the electronic device (300 or 400) can have a relatively higher density than the magnetic field distribution directed to the inside of the electronic device (300 or 400).

[0162] According to various embodiments, the first magnetic field shielding sheet (391, 491) attached to the magnet assembly (373, 473) can perform the function of forming a magnetic flux closed loop as described above, and can reduce the magnetic field influence on the electronic device (300, 400) and strengthen the tensile force of the magnet assembly (373, 473) by shielding the magnetic field radiated from the magnet assembly (373, 473) toward the electronic device (300, 400) while strengthening the magnetic field radiated toward the outside of the electronic device (300 or 400) on the back surface thereof. When the area of ​​the first magnetic field shielding sheet (391, 491) is configured to be the same as the area of ​​the magnet assembly (373, 473), the shielding effect can be further enhanced.

[0163] FIGS. 15 and 16 are drawings for explaining at least one specific region (e.g., at least one specific region (395) of FIG. 6c) disposed on a first magnetic field shielding sheet (e.g., the first magnetic field shielding sheet (391, 491) of FIG. 3 or FIG. 4) according to various embodiments.

[0164] According to various embodiments, when the first magnetic field shielding sheet (391, 491) approaches a power transmission device (e.g., the power transmission device (530) of FIG. 5), the wireless charging magnetic field generates an eddy current in the ring-shaped first magnetic field shielding sheet (391, 491), so that the power transmission device (530) recognizes the first magnetic field shielding sheet (391, 491) as a foreign object (FOD) and stops charging.

[0165] According to various embodiments, by providing an open effect by arranging at least one specific region (395) on the first magnetic field shielding sheet (391, 491), the eddy current can be significantly reduced, thereby preventing the charging interruption phenomenon. If the specific region is not arranged, an eddy current loss of about 161.5 mW can occur. In contrast, the eddy current loss can be reduced to about 5.011 mW when a specific region of about 0.5 degrees is arranged, as in (a) of FIG. 15, and can be reduced to about 4.859 mW when a specific region of about 15 degrees is arranged, as in (b) of FIG. 15.

[0166] According to various embodiments, the width (W) of the first magnetic field shielding sheet (391, 491) may be set to, for example, about 0.2 degrees or more and 15 degrees or less. For example, when the width (W) of the first magnetic field shielding sheet (391, 491) is about 0.2 degrees or less, charging may be stopped. For example, depending on the width (W) of the first magnetic field shielding sheet (391, 491), when it is about 1.0 degrees or less, the size of the eddy current may be about 1.1 mW or less. For example, the width (W) of the first magnetic field shielding sheet (391, 491) may be implemented to have a value as small as possible while considering the size of the eddy current, for example, 0.5 degrees.

[0167] According to various embodiments, one magnet may be composed of one first magnet (e.g., the first magnet (373-1) of FIG. 6c) and one second magnet (e.g., the second magnet (373-2) of FIG. 6c), in which case the width (W) of at least one specific region (395) may be implemented to be smaller than the length (L) of one first magnet (373-1) and / or second magnet (373-2).

[0168] According to various embodiments, when assembling a magnet assembly (373, 473), a plurality of magnets are used, and in order to ease assembly and reduce unshielded areas, the length of the width (W) of at least one specific area (395) of the first magnetic field shielding sheet (391, 491) may be implemented to be smaller than the length (L) of one magnet of the magnet assembly (373, 473). For example, by implementing the width (W) of at least one specific area (395) of the first magnetic field shielding sheet (391, 491) to be smaller than the length (L) of one magnet (373-1, 373-2) of the magnet assembly (373, 473), both ends of the at least one specific area (395) of the first magnetic field shielding sheet (391, 491) can be attached to one magnet (373-1, 373-2), so that one magnet (373-1, 373-2) can be easily assembled on the at least one specific area (395) where the first magnetic field shielding sheet (391, 491) is excluded.

[0169] According to various embodiments, at least one specific region (395) may be positioned opposite a location excluding an edge of a region where a second magnetic field shielding sheet (e.g., the second magnetic field shielding sheet (392, 492) of FIG. 3 or FIG. 4) is positioned.

[0170] Referring to FIG. 16, the second magnetic field shielding sheet (392) may have difficulty sufficiently shielding the magnetic field generated from the magnet assembly (373) in some edge areas among the areas where it is arranged. At least one specific area (395) may be an area where the first magnetic field shielding sheet (391, 491) is not arranged and thus cannot shield the magnetic field of the magnet assembly (373, 473). Therefore, in order to sufficiently shield the magnetic flux leaking from at least one specific area (395), at least one specific area (395) may be arranged to face a position excluding the edge areas among the areas where the second magnetic field shielding sheet (392, 492) is arranged. For example, at least one specific region (395) can be positioned so as to exclude the edge of the second magnetic field shielding sheet (392, 492) and face a central region (e.g., region A or region B) in which the second magnetic field shielding sheet (392, 492) is sufficiently widely positioned.

[0171] According to various embodiments, the electronic device (300) may include a magnet assembly (373) including a display (330), a coil (370), a plurality of first magnets (610) arranged to surround the coil (370), a plurality of second magnets (620) arranged to surround the plurality of first magnets (610) at positions spaced apart from the plurality of first magnets (610) by a predetermined distance, a first magnetic field shielding sheet (391) extending along the magnet assembly (373) in a direction toward the display (330) and attached to the magnet assembly (373), a second magnetic field shielding sheet (392) arranged between the coil (370) and the display (330) in a direction from the first magnetic field shielding sheet (391) toward the display (330), and a third magnetic field shielding sheet (393) arranged between the display and the second magnetic field shielding sheet.

[0172] According to various embodiments, the first magnetic field shielding sheet (391) may have an area substantially corresponding to the area of ​​the magnet assembly (373) formed by the plurality of first magnets (610) and the plurality of second magnets (620).

[0173] According to various embodiments, the display further includes a digitizer (333) positioned opposite to the display, and the third magnetic field shielding sheet (393) may be positioned between the digitizer (333) and the second magnetic field shielding sheet (392).

[0174] According to various embodiments, a specific area (395) in which a constituent material of the first magnetic field shielding sheet (391) is not disposed may be included in some area of ​​the first magnetic field shielding sheet (391).

[0175] According to various embodiments, the width (W) of the specific region (395) may be less than or equal to the length (L) of one of the first magnets (393-1) or the second magnets (393-2) of the plurality of first magnets (610) and the plurality of second magnets (620).

[0176] According to various embodiments, the specific area (395) may be positioned opposite the first magnet (393-1) and the second magnet (393-2).

[0177] According to various embodiments, the specific region (395) may be positioned so as to face the position of the central region among the regions where the second magnetic field shielding sheet (392) is positioned.

[0178] According to various embodiments, the first magnet (610) includes a first layer (611) and a second layer (612) that is an upper layer of the first layer (611), the second magnet (620) includes a third layer (623) and a fourth layer (624) that is an upper layer of the third layer (623), and the first layer (611) and the fourth layer (624) can be magnetized with a first polarity, and the second layer (612) and the third layer (623) can be magnetized with a second polarity that is an opposite polarity to the first polarity.

[0179] According to various embodiments, the device may further include a magnet (1110) positioned at a predetermined distance between the plurality of first magnets (610) and the plurality of second magnets (620).

[0180] According to various embodiments, the magnet (1110) may be a horizontal magnet in which the direction of the plurality of first magnets (610) is magnetized with a second polarity and the direction of the plurality of second magnets (620) is magnetized with a first polarity.

[0181] According to various embodiments, based on the inclusion of the magnet (1110), the thickness of the first magnetic field shielding sheet (391) can be applied to about 0.5 mm or less.

[0182] According to various embodiments, the first magnetic field shielding member (391) is arranged to shield a magnetic field generated in a direction toward the display (330), and may include a specific area where the constituent material of the first magnetic field shielding sheet (391) is not arranged to reduce the occurrence of eddy current in at least a portion of the first magnetic field shielding sheet (391).

[0183] According to various embodiments, the magnet assembly (373) may be positioned a specified distance away from the second magnetic field shielding sheet (392).

[0184] According to various embodiments, the predetermined gap may be formed to substantially correspond to the area of ​​a gap (830) formed in the magnet assembly (800) of the external device (520) including the corresponding magnet assembly (800).

[0185] According to various embodiments, the case device (401) may include a magnet assembly (473) including a plurality of first magnets (610) arranged to surround the coil (470) facing an electronic device (400) including a coil (470), a plurality of second magnets (620) arranged to surround the plurality of first magnets (610) at positions spaced apart from the plurality of first magnets (610) by a predetermined distance, and a magnetic field shielding sheet (491) attached to the magnet assembly and extending along the magnet assembly (473) in a direction toward the electronic device.

[0186] According to various embodiments, the magnetic field shielding sheet (491) may have an area substantially corresponding to the area of ​​the magnet assembly (473) formed by the plurality of first magnets (610) and the plurality of second magnets (620).

[0187] According to various embodiments, the magnetic shielding sheet (491) may include at least one specific area (395) in which the constituent material of the magnetic shielding sheet is not disposed.

[0188] According to various embodiments, the width (W) of the specific region (395) may be less than or equal to the length of one of the first magnets (373-1) or the second magnets (373-2) of the plurality of first magnets (610) and the plurality of second magnets (620).

[0189] According to various embodiments, the specific area (395) may be positioned opposite the first magnet (373-1) and the second magnet (373-2).

[0190] According to various embodiments, the magnet (1110) is further included, which is arranged at a predetermined distance between the plurality of first magnets (610) and the plurality of second magnets (620), wherein the first magnet (610) includes a first layer (611) and a second layer (612) which is an upper layer of the first layer (611), and the second magnet (620) includes a third layer (623) and a fourth layer (624) which is an upper layer of the third layer (623), and the first layer (611) and the fourth layer (624) are magnetized with a first polarity, and the second layer (612) and the third layer (623) are magnetized with a second polarity which is an opposite polarity to the first polarity, and the magnetic body (1110) is magnetized with a direction of the plurality of first magnets (610) with a second polarity and the plurality of second The magnets (620) may be magnetized in the first polarity. Electronic devices according to various embodiments disclosed in this document may be devices of 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 document are not limited to the aforementioned devices.

[0191] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, 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 this document, 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 those 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.

[0192] The term "module" used in various embodiments of this document 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).

[0193] Various embodiments of the present document 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)). For example, a processor (e.g., a processor (120)) of the machine (e.g., an electronic device (101)) may call at least one instruction 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.

[0194] According to one embodiment, the method according to various embodiments disclosed in this document 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.

[0195] 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 placed 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.

Claims

1. In an electronic device (300), display (330); coil (370); A magnet assembly (373) including a plurality of first magnets (610) arranged to surround the coil (370), and a plurality of second magnets (620) arranged to surround the plurality of first magnets (610) at positions spaced apart from the plurality of first magnets (610) by a predetermined distance; A first magnetic field shielding sheet (391) extending along the magnet assembly (373) in a direction toward the display (330) and attached to the magnet assembly (373); A second magnetic field shielding sheet (392) arranged between the coil (370) and the display (330) in a direction from the first magnetic field shielding sheet (391) toward the display (330); and An electronic device comprising a third magnetic field shielding sheet (393) disposed between the display and the second magnetic field shielding sheet.

2. In paragraph 1, An electronic device in which the first magnetic field shielding sheet (391) has an area substantially corresponding to the area of ​​the magnet assembly (373) formed by the plurality of first magnets (610) and the plurality of second magnets (620).

3. In paragraph 1, Further comprising a digitizer (333) positioned opposite to the above display; The third magnetic field shielding sheet (393) is an electronic device positioned between the digitizer (333) and the second magnetic field shielding sheet (392).

4. In paragraph 1, An electronic device including a specific area (395) in which a constituent material of the first magnetic field shielding sheet (391) is not disposed in a portion of the first magnetic field shielding sheet (391).

5. In paragraph 4, An electronic device in which the width (W) of the above-described specific region (395) is smaller than or equal to the length (L) of one of the first magnets (393-1) or the second magnet (393-2) of the plurality of first magnets (610) and the plurality of second magnets (620).

6. In paragraph 5, The above specific area (395) is an electronic device positioned opposite to the first magnet (393-1) and the second magnet (393-2).

7. In paragraph 4, An electronic device in which the above-mentioned specific region (395) is positioned so as to face the position of the central region among the regions in which the second magnetic field shielding sheet (392) is positioned.

8. In paragraph 1, An electronic device in which the first magnet (610) includes a first layer (611) and a second layer (612) which is an upper layer of the first layer (611), the second magnet (620) includes a third layer (623) and a fourth layer (624) which is an upper layer of the third layer (623), the first layer (611) and the fourth layer (624) are magnetized with a first polarity, and the second layer (612) and the third layer (623) are magnetized with a second polarity which is an opposite polarity to the first polarity.

9. In paragraph 8, An electronic device further comprising a magnet (1110) arranged at a predetermined distance apart position between the plurality of first magnets (610) and the plurality of second magnets (620).

10. In paragraph 9, The above magnet (1110) is an electronic device in which the direction of the plurality of first magnets (610) is magnetized with a second polarity and the direction of the plurality of second magnets (620) is magnetized with a first polarity.

11. In paragraph 9, An electronic device in which the thickness of the first magnetic field shielding sheet (391) is applied to about 0.5 mm or less based on the inclusion of the magnet (1110) above.

12. In paragraph 1, The first magnetic field shielding member (391) is positioned to shield a magnetic field generated in a direction toward the display (330), and is an electronic device including a specific area where a constituent material of the first magnetic field shielding sheet (391) is not positioned to reduce the occurrence of eddy current in at least a portion of the first magnetic field shielding sheet (391).

13. In paragraph 1, An electronic device in which the above magnet assembly (373) is placed at a specified distance from the second magnetic field shielding sheet (392).

14. In paragraph 1, An electronic device in which the above predetermined interval is formed to substantially correspond to the area of ​​a gap (830) formed in the magnet assembly (800) of an external device (520) including a corresponding magnet assembly (800).

15. In the case device (401), A magnet assembly (473) including a plurality of first magnets (610) arranged to surround the coil (470) facing an electronic device (400) including a coil (470), and a plurality of second magnets (620) arranged to surround the plurality of first magnets (610) at positions spaced apart from the plurality of first magnets (610) by a predetermined distance; and A device comprising a magnetic field shielding sheet (491) extending along the magnet assembly (473) in a direction toward the electronic device and attached to the magnet assembly.

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