Wearable charging device and set of wearable devices including same

Abstract

According to an embodiment, a wearable charging device may comprise: a charging body having a shape surrounding at least a portion of an accommodation space capable of accommodating an external wearable electronic device; a battery installed in the charging body; an extension part extending from the charging body toward a central axis (O) of the accommodation space; and a charging coil installed in the extension part and capable of transmitting power (P) to the external wearable electronic device by using power supplied from the battery.

Description

Wearable charging device and wearable device set including the same

[0001] The disclosure below relates to a wearable charging device and a set of wearable devices including the same.

[0002] A ring-type wearable electronic device is worn on a part of the user's body (e.g., a finger) and can perform various functions. For example, a ring-type wearable electronic device can utilize at least one sensor to monitor the user's health status (e.g., heart rate, sleep patterns, activity level, or stress level). The wearable electronic device may include a battery to power the electronic components (e.g., sensors) within the device. The user can charge the battery within the wearable electronic device by removing the wearable electronic device from the body and placing it on a charger.

[0003] The related art mentioned above is possessed or acquired during the process of deriving the present disclosure and cannot necessarily be said to be prior art disclosed to the general public prior to the filing of the present disclosure.

[0004] According to one embodiment, a wearable charging device may include a charging body having a shape surrounding at least a portion of an accommodation space capable of accommodating an external wearable electronic device, a battery installed in the charging body, an extension portion extending from the charging body toward a central axis (O) of the accommodation space, and a charging coil installed in the extension portion and capable of transmitting power (P) to the external wearable electronic device using power supplied from the battery.

[0005] According to one embodiment, a wearable device set may include (i) a wearable electronic device having a ring-shaped body, a receiving coil provided in the ring-shaped body and capable of receiving power (P), and (ii) a wearable charging device having a charging body having a shape surrounding at least a portion of an accommodation space capable of accommodating the wearable electronic device, a battery installed in the charging body, an extension portion extending from the charging body toward a central axis (O) of the accommodation space and surrounding at least a portion of a side surface of the wearable electronic device, and a charging coil installed in the extension portion and capable of transmitting power to the receiving coil using power supplied from the battery.

[0006] According to one embodiment, a wearable charging device may include a charging body having a shape surrounding an external wearable electronic device and a receiving space having an inner diameter equal to an outer diameter, a battery having at least a portion disposed on a most outwardly protruding portion of the charging body, an extension portion having a shape extending inwardly from a side surface of the charging body toward a central axis of the receiving space, and a charging coil installed in the extension portion and capable of transmitting power to the external wearable electronic device using power supplied from the battery.

[0007] The above and other aspects, features and advantages according to specific embodiments of the present disclosure will become more apparent from the detailed description below with reference to the accompanying drawings.

[0008] FIG. 1 is a block diagram of a wearable charging device within a network environment according to one embodiment.

[0009] FIG. 2 is a block diagram of a wearable charging device and a wearable electronic device according to one embodiment.

[0010] FIG. 3 is a schematic block diagram of a charger, a wearable charging device, and a wearable electronic device according to one embodiment.

[0011] FIG. 4 is a diagram conceptually illustrating an example of the structure of a wearable electronic device according to one embodiment.

[0012] FIG. 5 is a cross-sectional view showing a wearable charging device according to one embodiment being connected to a wearable electronic device.

[0013] Figure 6 is a front view of a wearable charging device according to one embodiment.

[0014] FIG. 7 is a drawing showing a user additionally wearing a wearable charging device according to an embodiment while wearing a wearable electronic device according to an embodiment.

[0015] Figure 8 is a front view of a wearable charging device according to one embodiment.

[0016] FIG. 9 is a cross-sectional view showing a wearable charging device according to one embodiment being magnetically fastened to a wearable electronic device.

[0017] FIG. 10 is a drawing showing a state in which both ends of a wearable charging device according to one embodiment are spread apart.

[0018] FIG. 11 is a drawing showing a connection structure between two ends of a wearable charging device according to one embodiment.

[0019] FIG. 12 is a cross-sectional view of a wearable charging device according to one embodiment.

[0020] FIG. 13 is a perspective view showing the internal configuration of a wearable electronic device according to one embodiment.

[0021] FIG. 14 is a drawing showing a wearable electronic device according to one embodiment placed on a charger.

[0022] Fig. 15 is a cross-sectional view taken in direction II of Fig. 14.

[0023] FIG. 16 is a cross-sectional view showing a wearable electronic device or a wearable charging device mounted on a charger according to one embodiment.

[0024] Hereinafter, embodiments will be described in detail with reference to the attached drawings. In the description with reference to the attached drawings, identical components are assigned the same reference numerals regardless of the drawing numbers, and redundant descriptions thereof will be omitted.

[0025] FIG. 1 is a block diagram of a wearable charging device within a network environment according to one embodiment.

[0026] Referring to FIG. 1, a wearable charging device (101) according to one embodiment can charge a wearable electronic device (e.g., a ring-type electronic device) (e.g., an electronic device (102)). As described below, a user can charge the wearable electronic device by additionally wearing the wearable charging device (101) while wearing the wearable electronic device. For example, a user can charge the wearable electronic device using the wearable charging device (101) without removing the wearable electronic device from the body.

[0027] According to one embodiment, in a network environment (100), a wearable charging 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 wearable charging device (101) may communicate with the electronic device (104) via the server (108). However, it should be noted that this is merely one embodiment, and the wearable charging device (101) does not necessarily have to have a communication function with another electronic device (102) or the server (108). According to one embodiment, a wearable charging device (101) may include a plurality of electronic components (e.g., 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 wearable charging device (101) may omit at least one of these components (e.g., display module (160), audio module (170), sensor module (176), connection terminal (178), haptic module (179), camera module (180), subscriber identification module (196), or antenna module (197)), or may have one or more other components added. In some embodiments, some of these components (e.g., sensor module (176), camera module (180), or antenna module (197)) may be integrated into one component (e.g., display module (160)).

[0028] 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 wearable charging 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 an auxiliary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (121). For example, when the wearable charging device (101) includes the main processor (121) and the auxiliary processor (123), the auxiliary processor (123) may be configured to use lower power than the main processor (121) or to be specialized for a given function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0029] 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), a power management module (188), a battery (189), or a communication module (190)) of the wearable charging 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), a power management module (188), a battery (189), or a communication module (190)). According to one embodiment, the auxiliary processor (123) (e.g., a neural network processing device) may include a hardware structure specialized for processing an artificial intelligence model. The artificial intelligence model may be generated through machine learning. Such learning may be performed, for example, in the wearable charging device (101) itself on which the artificial intelligence model is executed, or may be performed through a separate server (e.g., server (108)). The learning algorithm may 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 may include a plurality of 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.

[0030] The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the wearable charging 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).

[0031] 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).

[0032] The input module (150) can receive commands or data to be used in a component (e.g., a processor (120)) of the wearable charging device (101) from an external source (e.g., a user) of the wearable charging device (101). The input module (150) can include, for example, a microphone, a key (e.g., a button), a touch sensor, or a pressure sensor.

[0033] The audio output module (155) can output audio signals to the outside of the wearable charging 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. According to one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0034] The display module (160) can visually provide information to an external party (e.g., a user) of the wearable charging 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.

[0035] 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), or 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 wearable charging device (101).

[0036] The sensor module (176) can detect the operating status (e.g., power or temperature) of the wearable charging 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.

[0037] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the wearable charging device (101) to an external electronic device (e.g., 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.

[0038] The connection terminal (178) may include a connector through which the wearable charging 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).

[0039] 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. According to one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0040] 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.

[0041] The power management module (188) can manage the power supplied to the wearable charging device (101). According to one embodiment, the power management module (188) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0042] The battery (189) may power at least one component of the wearable charging 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.

[0043] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the wearable charging 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 wearable charging 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).

[0044] 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 a wearable charging device (101), an external electronic device (e.g., electronic device (104)), or a network system (e.g., second network (199)). According to one embodiment, the wireless communication module (192) may support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 eB 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.

[0045] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). According to one embodiment, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). According to 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, for example, by the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device via the selected at least one antenna. According to 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).

[0046] In one embodiment, the antenna module (197) may form a mmWave antenna module. In 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.

[0047] 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)).

[0048] According to one embodiment, commands or data may be transmitted or received between the wearable charging 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 wearable charging device (101). According to one embodiment, all or part of the operations executed by the wearable charging device (101) may be executed by one or more of the external electronic devices (102, 104, or 108). For example, when the wearable charging device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the wearable charging 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 wearable charging device (101). The wearable charging 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 wearable charging device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In one 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, an external electronic device (104) or server (108) may be included in the second network (199). The wearable charging device (101) may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0049] Electronic devices according to the embodiments may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0050] The embodiments and terminology used herein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to encompass 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 dictates otherwise. In this document, phrases such as "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 each include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish the corresponding component from other corresponding components, and do not limit the corresponding components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as being "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.

[0051] The term "module" used in the embodiments 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).

[0052] According to 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 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 embodiments, 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.

[0053] FIG. 2 is a block diagram of a wearable charging device and a wearable electronic device according to one embodiment.

[0054] Referring to FIG. 2, a wearable charging device (200) according to one embodiment (e.g., the wearable charging device (101) of FIG. 1) can wirelessly transmit power (P) to a wearable electronic device (202) (e.g., the electronic device (102) of FIG. 1). The wearable charging device (200) can transmit power (P) to the wearable electronic device (202) according to various charging methods.

[0055] For example, the wearable charging device (200) can transmit power (P) according to an inductive method. For example, when the wearable charging device (200) uses an inductive method, the wearable charging device (200) can include a power source, a DC-AC conversion circuit, an amplifier circuit, an impedance matching circuit, at least one capacitor, at least one coil, and a communication modulation / demodulation circuit. At least one capacitor can form a resonant circuit together with at least one coil. The wearable charging device (200) can be implemented in a manner defined in the WPC (Wireless Power Consortium) standard (or Qi standard).

[0056] For example, the wearable charging device (200) can transmit power (P) according to a resonance method. For example, when the wearable charging device (200) uses a resonance method, the wearable charging device (200) can include a power source, a DC-AC conversion circuit, an amplifier circuit, an impedance matching circuit, at least one capacitor, at least one coil, and an out-of-band (OOB) communication circuit (e.g., a BLE (Bluetooth low energy) communication circuit). At least one capacitor and at least one coil can constitute a resonance circuit. The wearable charging device (200) can be implemented in a manner defined in the A4WP (Alliance for Wireless Power) standard (or the AFA (air fuel alliance) standard).

[0057] For example, the wearable charging device (200) may include a coil that can generate an induced magnetic field when current flows according to a resonance method or an induction method. The process of the wearable charging device (200) generating an induced magnetic field can be expressed as the wearable charging device (200) wirelessly transmitting power (P). In addition, the wearable electronic device (202) may include a coil that generates an induced electromotive force by a magnetic field whose magnitude changes over time formed around it. The process of the wearable electronic device (202) generating an induced electromotive force through the coil can be expressed as the wearable electronic device (202) wirelessly receiving power (P). The wearable charging device (200) may also be implemented in a manner defined in the airFuel inductive (e.g., PMA (Power Matters Alliance)) or airfuel resonant (e.g., rezence) standard, or in a manner defined in the Qi standard, as a standard for wireless power transmission.

[0058] For example, the wearable charging device (200) can transmit power (P) according to an electromagnetic wave method. For example, when the wearable charging device (200) uses an electromagnetic wave method, the wearable charging device (200) can include a power source, a DC-AC conversion circuit, an amplifier circuit, a distribution circuit, a phase shifter, an antenna array for power transmission including a plurality of patch antennas, and an out-of-band communication circuit (e.g., a BLE communication module). Each of the plurality of patch antennas can form an RF (radio frequency) wave. The wearable electronic device (202) can include a patch antenna that can output current by using an RF wave formed in the surroundings. The process in which the wearable charging device (200) forms an RF wave can be expressed as the wearable charging device (200) wirelessly transmitting power (P). The process in which a wearable electronic device (202) outputs current from a patch antenna using RF waves can be expressed as the wearable electronic device (202) wirelessly receiving power (P).

[0059] FIG. 3 is a schematic block diagram of a charger, a wearable charging device, and a wearable electronic device according to one embodiment.

[0060] Referring to FIG. 3, a charger (300) according to an embodiment can wirelessly transmit power to a wearable charging device (350) (e.g., a wearable charging device (101) of FIG. 1 or a wearable charging device (200) of FIG. 2) and / or a wearable electronic device (370) (e.g., an electronic device (102) of FIG. 1 or a wearable electronic device (202) of FIG. 2) connected to the charger (300). A wearable charging device (350) according to an embodiment can wirelessly transmit power to a wearable electronic device (370).

[0061] According to one embodiment, the charger (300) may include a power transmission circuit (309), a control circuit (302), a communication circuit (303), a memory (305), and a power source (306). According to one embodiment, the wearable charging device (350) may include a power reception circuit (359), a processor (352) (e.g., the processor (120) of FIG. 1), a communication circuit (353) (e.g., the communication module (190) of FIG. 1), a battery (354) (e.g., the battery (189) of FIG. 1), a PMIC (355) (e.g., the power management module (188) of FIG. 1), a memory (356) (e.g., the memory (130) of FIG. 1), and a power transmission circuit (358). A wearable electronic device (370) according to one embodiment may include a power receiving circuit (379), a processor (372), a communication circuit (373), a battery (374), a PMIC (375), and a memory (376).

[0062] According to one embodiment, the power transmission circuit (309) can wirelessly transmit power to the power reception circuit (359) according to at least one of an inductive method, a resonant method, or an electromagnetic wave method.

[0063] For example, the power transmission circuit (309) may include a power adapter, a power generation circuit, a coil, and a matching circuit. The power adapter may receive power from a power source (306) and provide it to the power generation circuit. The power source (306) may include a charging structure (e.g., a protrusion or a pad) that transmits wireless power based on power supplied from, for example, a charger (e.g., a TA, travel adapter). The power generation circuit may convert the received power into, for example, an AC waveform, or amplify it and transmit it to the coil. When power is applied to the coil, an induced magnetic field whose magnitude changes over time may be formed from the coil, thereby allowing power to be transmitted wirelessly. The power transmission circuit (309) may further include capacitors that form a resonant circuit together with the coil. The resonant frequency can be defined according to the standard, and can have a frequency of about 100 to about 205 kHz according to the Qi standard by the inductive method, and can have a frequency of about 6.78 MHz according to the AFA standard by the resonant method. The matching circuit can make the power transmission circuit (309) and the power reception circuit (359) impedance-match each other by changing at least one of the capacitance or reactance of the circuit connected to the coil according to the control of the control circuit (302).

[0064] According to one embodiment, the control circuit (302) performs overall control of the charger (300) and can generate various messages (e.g., instructions) required for wireless power transmission and transmit them to the communication circuit (303). For example, the control circuit (302) can calculate the power (or amount of power) to be transmitted to the wearable charging device (350) based on information received from the communication circuit (303). For example, the control circuit (302) can control the power transmission circuit (309) so that the power generated by the coil included in the power transmission circuit (309) is transmitted to the wearable charging device (350). For example, the control circuit (302) can control the amount of power transmitted by the power transmission circuit (309). For example, the control circuit (302) can control the amount of power output from the power source (306) or control the amplification gain of a power amplifier included in the power transmission circuit (309), thereby controlling the amount of power transmitted by the power transmission circuit (309). For example, the control circuit (302) can adjust the amount of power output from the power source (306) by controlling the duty cycle or frequency of the power output from the power source (306). For example, the control circuit (302) can control the amount of power applied to the power transmission circuit (309) by controlling the amount of bias voltage of the power amplifier.

[0065] The control circuit (302) or processor (352) can be implemented with various circuits capable of performing operations, such as a general-purpose processor such as a CPU, a minicomputer, a microprocessor, a micro controlling unit (MCU), a field programmable gate array (FPGA), and the like, and there is no limitation on the type thereof. The control circuit (302) can control at least one of a power source (306) or a power transmission circuit (309) to transmit, for example, a determined amount of power.

[0066] According to one embodiment, the communication circuit (303) may include a plurality of communication circuits (e.g., a first communication circuit or a second communication circuit). For example, the first communication circuit may communicate with the wearable charging device (350) based on an in-band communication method using a frequency that is the same as or adjacent to a frequency used for power transmission in the coil, and the second communication circuit may communicate with the wearable charging device (350) based on an out-of-band communication method using a frequency different from the frequency used for power transmission in the coil.

[0067] According to one embodiment, the memory (305) may be implemented in various forms such as ROM (read only memory), RAM (random access memory), or flash memory, and there is no limitation on the implementation form.

[0068] According to one embodiment, the power receiving circuit (359) can wirelessly receive power from the power transmitting circuit (309) according to at least one of an inductive method, a resonant method, or an electromagnetic wave method. For example, the power receiving circuit (359) can perform power processing such as rectifying the received AC waveform power into a DC waveform, converting the voltage, or regulating the power.

[0069] For example, the power receiving circuit (359) may include a coil, a rectifier circuit, a converting circuit, and a matching circuit. An induced electromotive force may be generated in the coil of the power receiving circuit (359) by a magnetic field whose magnitude changes over time formed around it, and accordingly, the power receiving circuit (359) may receive power wirelessly. The rectifier circuit may rectify the power of the received AC waveform. The converting circuit may adjust the voltage of the rectified power and transmit it to the PMIC (355). The power receiving circuit (359) may further include a regulator, or the converting circuit may be replaced with a regulator. The matching circuit may change at least one of the capacitance or reactance of a circuit connected to the coil under the control of the processor (352), thereby allowing the power transmitting circuit (309) and the power receiving circuit (359) to be impedance-matched to each other.

[0070] According to one embodiment, the PMIC (355) may process the received and processed power to be suitable for the hardware (e.g., battery (354)) and deliver it to each piece of hardware. For example, the PMIC (355) may include a voltage distribution circuit and a charging circuit.

[0071] According to one embodiment, the battery (354) may store power received from, for example, a charger (300).

[0072] According to one embodiment, the processor (352) can control the overall operation of the wearable charging device (350), and can generate various messages required for wireless power reception or transmission and transmit them to the communication circuit (353). The memory (356) can store instructions for performing the operation of the charger (300).

[0073] According to one embodiment, the communication circuit (353) may include a plurality of communication circuits (e.g., a first communication circuit or a second communication circuit). For example, the first communication circuit may communicate with the wearable electronic device (370) based on an in-band communication method using a frequency that is the same as or adjacent to a frequency used for power transmission in the coil, and the second communication circuit may communicate with the wearable electronic device (370) based on an out-of-band communication method using a frequency different from the frequency used for power transmission in the coil.

[0074] According to one embodiment, the memory (356) may be implemented in various forms such as ROM (read only memory), RAM (random access memory), or flash memory, and there is no limitation on the implementation form.

[0075] According to one embodiment, the power transmission circuit (358) can wirelessly transmit power to the power reception circuit (379) according to at least one of an inductive method, a resonant method, or an electromagnetic wave method. Unless otherwise stated, the description of the power transmission circuit (309) of the charger (300) can be applied to the power transmission circuit (358) of the wearable charging device (350). While the power transmission circuit (358) and the power reception circuit (359) are described separately, it should be noted that at least some components (e.g., coils) may be commonly used in the two circuits (358, 359). For example, the same coil may be used as a transmitting coil of the power transmission circuit (358) and as a receiving coil of the power reception circuit (359).

[0076] Unless otherwise stated, the description of the PMIC (355), battery (354), communication circuit (353), power receiving circuit (359), processor (352), and memory (356) of the wearable charging device (350) may also be applied to the PMIC (375), battery (374), communication circuit (373), power receiving circuit (379), processor (372), and memory (376) of the wearable electronic device (370), and any redundant descriptions will be omitted.

[0077] According to one embodiment, the power transmission circuit (309) of the charger (300) can transmit power from the charger (300) to the wearable electronic device (370) in the same manner (e.g., magnetic induction) as the manner in which power is transmitted from the charger (300) to the wearable charging device (350). With this configuration, both the wearable charging device (350) and the wearable electronic device (370) can be charged using the same charger (300). For example, the method of transmitting power from the power transmission circuit (309) of the charger (300) to the wearable electronic device (370) and the method of transmitting power from the power transmission circuit (358) of the wearable charging device (350) to the wearable electronic device (370) may be the same. According to this configuration, the number of electronic components that must be provided to transmit or receive power between each device (300, 350, 370) can be reduced, thereby helping to reduce the weight and volume of each device (300, 350, 370).

[0078] FIG. 4 is a diagram conceptually illustrating an example of the structure of a wearable electronic device according to one embodiment.

[0079] Referring to FIG. 4, a cross-sectional view (401) and a side perspective view (402) of a wearable electronic device (400) (e.g., the electronic device (102) of FIG. 1, the wearable electronic device (202) of FIG. 2, or the wearable electronic device (370) of FIG. 3) according to one embodiment are illustrated. The wearable electronic device (400) is a device that can be charged by a wearable charging device (not shown) (e.g., the wearable charging device (101) of FIG. 1, the wearable charging device (200) of FIG. 2, or the wearable charging device (350) of FIG. 3). Hereinafter, an exemplary structure of the wearable electronic device (400) will be described first.

[0080] A wearable electronic device (400) according to an embodiment may be worn on a user's body (e.g., a finger). The wearable electronic device (400) may be a ring-shaped electronic device or a smart ring. The wearable electronic device (400) may include a receiving space formed in the center to receive the user's body. For example, the exterior of the wearable electronic device (400) may be formed of a rigid material (e.g., titanium, stainless steel, or ceramic) to withstand external impacts and scratches. For example, the interior of the wearable electronic device (400) may be in contact with the user's body (e.g., a finger). For example, at least a portion of the interior and / or side of the wearable electronic device (400) may be formed of a material (e.g., synthetic resin) that is permeable to a magnetic field for wireless charging.

[0081] According to one embodiment, a wearable electronic device (400) may include a communication circuit (410) (e.g., a communication circuit (373) of FIG. 3), an antenna (411), a processor (420) (e.g., a processor (372) of FIG. 3), a memory (430) (e.g., a memory (376) of FIG. 3), a flexible printed circuit board (FPCB) (440), a battery (450) (e.g., a battery (374) of FIG. 3), a receiving coil (451) (e.g., a power receiving circuit (379) of FIG. 3), a PMIC (452) (e.g., a PMIC (375) of FIG. 3), an inertial sensor (460), a photoplethysmogram (PPG) sensor (470), and a temperature sensor (480). For example, at least some of the sensors (460, 470, 480) may be omitted from the wearable electronic device (400).

[0082] According to one embodiment, the communication circuit (410) may support establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the wearable electronic device (400) and an external electronic device (e.g., the wearable charging device (101) of FIG. 1, the wearable charging device (200) of FIG. 2, or the wearable charging device (350) of FIG. 3). The communication circuit (410) may support communication based on the established communication channel. For example, the communication circuit (410) may support Bluetooth, BLE (Bluetooth Low Energy), ZigBee, ANT+, Wi-Fi, Cellular (LTE, 5G, 6G, NB-IoT), NFC (near field communication), RFID (radio-frequency identification), UWB (ultra wide band), or GNSS (global navigation satellite system)). The communication circuit (410) may operate independently from the processor (420), or may be implemented in an integrated form with the processor (420). The antenna (411) may be an antenna for wireless communication. The antenna (411) may be implemented as a single antenna or multiple antennas. The antenna (411) may also be implemented as part of the exterior of the wearable electronic device (400).

[0083] According to one embodiment, the processor (420) can perform various data processing or calculations. The processor (420) can store commands or data received from other components (e.g., sensors (e.g., 460, 470, 480) or communication circuits (410)) in the memory (430), process the commands or data stored in the memory (430), and store result data in the memory (430). According to one embodiment, the processor (420) can include a main processor (e.g., a central processing unit or an application processor) or an auxiliary processor (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. The processor (420) can be implemented in an integrated form with other components (e.g., sensors (e.g., 460, 470, 480) or communication circuits (410)).

[0084] According to one embodiment, the memory (430) may store various data used by at least one component (e.g., a processor (420) or a sensor (e.g., 460, 470, 480)) of the wearable electronic device (400). The data may include, for example, software (e.g., a program). The data may include input data or output data for commands related to the software.

[0085] According to one embodiment, the FPCB (440) may be an electrical circuit board having flexible characteristics. Components (e.g., a processor (420), memory (430), a battery (450), or sensors (e.g., 460, 470, 480)) may be placed on the FPCB (440). The components placed on the FPCB (440) may be electrically connected to each other.

[0086] According to one embodiment, the battery (450) can store energy to power the wearable electronic device (400). The battery (450) can be charged or discharged and can be formed of, for example, a metal material (e.g., lithium ion, mercury, or a dry cell). For example, the battery (450) can be equipped with a flexible battery pack to be placed inside the wearable electronic device (400). For example, the receiving coil (451) can support various charging methods (e.g., wired charging method or wireless charging method) of the wearable electronic device (400). The PMIC (452) can manage power of the wearable electronic device (400). The PMIC (452) can distribute power to components (e.g., processor (420), memory (430), or sensors (e.g., 460, 470, 480)).

[0087] According to one embodiment, the inertial sensor (460) can detect the inertia of the wearable electronic device (400). For example, the inertial sensor (460) can include an acceleration sensor or a gyroscope sensor. For example, the inertial sensor (460) can be implemented as a three-axis sensor, including a three-axis acceleration sensor. For example, the inertial sensor (460) can be implemented as a six-axis sensor, including a three-axis acceleration sensor and a three-axis gyro sensor. For example, the inertial sensor (460) can sense motion, gesture, impact, posture, or activity of the wearable electronic device (400) or a user wearing the wearable electronic device (400). The inertial sensor (460) can monitor shaking information of the wearable electronic device (400). For example, the wearable electronic device (400) may include a location measurement circuit (e.g., a GPS circuit or a GPS sensor). For example, through the location measurement circuit, the wearable electronic device (400) may obtain its own location information.

[0088] According to one embodiment, the PPG sensor (470) can irradiate light onto a living body (e.g., a user's body). The PPG sensor (470) can receive light that is absorbed, scattered, or reflected. For example, the PPG sensor (470) can include an emitter (471), a receiver (472), and a control unit (473).

[0089] According to one embodiment, the PPG sensor (470) can irradiate light to a living body (e.g., a user's blood vessel) through a light-emitting unit (471). For example, the light-emitting unit (471) can emit light of various bands. For example, the first light-emitting unit (471-1) can emit light of an infrared wavelength, the second light-emitting unit (471-2) can emit green light of a visible light wavelength, and the third light-emitting unit (471-3) can emit red light of a visible light wavelength. For example, the first to third light-emitting units (471-1, 471-2, 471-3) can be implemented with various elements (e.g., a light-emitting diode (LED), a laser diode, or a vertical cavity surface emitting laser (VCSEL)).

[0090] According to one embodiment, the PPG sensor (470) can receive light absorbed, scattered, or reflected through the light receiving unit (472). The light receiving unit (472) can receive the result of the reflected or transmitted light. For example, the light receiving unit (472) can be implemented as a photodiode or a complementary metal-oxide semiconductor (CMOS)-based image sensor. For example, the light receiving unit (472) can convert the received light based on an analog to digital converter (ADC). For example, the light receiving unit (472) can store the result of converting the received light in the memory (430) or a sensor buffer (not shown).

[0091] According to one embodiment, the PPG sensor (470) can control the light emitting unit (471) and the light receiving unit (472) through the control unit (473). The control unit (473) can process data. For example, the control unit (473) can convert light received by the light receiving unit (472) into data and store the converted data in the memory (430).

[0092] According to one embodiment, the temperature sensor (480) may be a sensor that measures the temperature of a living body or a component. For example, the temperature sensor (480) may measure temperature in a contact or non-contact manner. The temperature sensor (480) may store the measured temperature value in the memory (430). For example, the temperature sensor (480) may transmit the measured temperature value to the processor (420), thereby allowing the processor (420) to estimate the skin temperature.

[0093] FIG. 5 is a cross-sectional view illustrating a wearable charging device according to an embodiment of the present invention being connected to a wearable electronic device. FIG. 6 is a front view of a wearable charging device according to an embodiment of the present invention. FIG. 7 is a drawing illustrating a wearable charging device according to an embodiment of the present invention additionally worn by a user while wearing a wearable electronic device according to an embodiment of the present invention.

[0094] Referring to FIGS. 5 to 7, a wearable charging device (500) according to an embodiment (e.g., the wearable charging device (101) of FIG. 1, the wearable charging device (200) of FIG. 2, or the wearable charging device (350) of FIG. 3) may be worn on a user's body (e.g., a finger). The wearable charging device (500) may be worn on a user's body (e.g., a finger) on which a wearable electronic device (600) (e.g., the electronic device (102) of FIG. 1, the wearable electronic device (202) of FIG. 2, the wearable electronic device (370) of FIG. 3, or the wearable electronic device (400) of FIG. 4) is worn, in a state of being coupled with the wearable electronic device (600). According to this structure, even if the user does not remove the wearable electronic device (600) from the body, the wearable electronic device (600) can be charged by power received from the wearable charging device (500). The wearable charging device (500) and the wearable electronic device (600) may be collectively referred to as a “wearable device set.”

[0095] According to one embodiment, the wearable electronic device (600) can detect a biosignal using a sensor (not shown) (e.g., a PPG sensor (470) or a temperature sensor (480) of FIG. 4) while being worn on the user's body, store the detected signal as data, and provide the same to the user. Meanwhile, when the wearable electronic device (600) is discharged or is removed from the user's body for charging, the operation of detecting the biosignal described above may be interrupted, resulting in a data gap during the corresponding period. The wearable charging device (500) according to one embodiment can reduce the period during which the biosignal detection operation of the wearable electronic device (600) is interrupted by allowing the wearable electronic device (600) to be charged even while the user is wearing the wearable electronic device (600). For example, the wearable charging device (500) can enable the bio-signal detection operation of the wearable electronic device (600) to be performed continuously without interruption. Meanwhile, in the process of separating the wearable electronic device (600) from the user's body for charging, the possibility of the wearable electronic device (600) being lost may increase. The wearable charging device (500) according to one embodiment can reduce the risk of loss of the wearable electronic device (600) by eliminating the need to separate the wearable electronic device (600) from the user's body for charging.

[0096] According to one embodiment, a wearable electronic device (600) may include a ring-shaped body (610) that surrounds a receiving space (611) and a receiving coil (640) (e.g., a power receiving circuit (379) of FIG. 3) that receives power from a wearable charging device (500).

[0097] According to one embodiment, the ring-shaped body (610) may include an outer circumferential surface (610-1) positioned outside with respect to the central axis (O) of the receiving space (611), an inner circumferential surface (610-2) positioned toward the receiving space (611), a first side surface (610-3) interconnecting one side of the outer circumferential surface (610-1) (e.g., the - X direction in FIG. 5) and one side of the inner circumferential surface (610-2) (e.g., the - X direction in FIG. 5), and a second side surface (610-4) interconnecting the other side of the outer circumferential surface (610-1) (e.g., the + X direction in FIG. 5) and the other side of the inner circumferential surface (610-2) (e.g., the + X direction in FIG. 5).

[0098] According to one embodiment, the receiving coil (640) may be provided in the ring-shaped body (610). For example, the receiving coil (640) may have a shape that is wound multiple times in the circumferential direction of the receiving space (611). For example, the receiving coil (640) may have a shape that is wound in one of the clockwise and counterclockwise directions with respect to the central axis (O) of the receiving space (611), and the radius from the central axis (O) increases as it goes in the one direction. According to such a shape, the thickness of the receiving coil (640) can be made thinner than a spring-shaped coil formed by winding multiple times with the same diameter. For example, the receiving coil (640) may be arranged to be biased closer to one of the first side (610-3) and the second side (610-4) of the ring-shaped body (610), but is not limited thereto. For example, when the receiving coil (640) is biased toward the first side (610-3) that is positioned in a direction close to the charging coil (540) of the wearable charging device (500) (e.g., the -X direction of FIG. 5), the power reception efficiency of the receiving coil (640) can be improved.

[0099] According to one embodiment, a wearable charging device (500) may include a charging body (510), a battery (520) (e.g., a battery (189) of FIG. 1 or a battery (354) of FIG. 3), an extension (530), a charging coil (540) (e.g., a power receiving circuit (359) or a power transmitting circuit (358) of FIG. 3), a processor (550) (e.g., a processor (120) of FIG. 1 or a processor (352) of FIG. 3), and a power management module (560) (e.g., a power management module (188) of FIG. 1 or a PMIC (355) of FIG. 3).

[0100] According to one embodiment, the charging body (510) may have a shape that surrounds at least a portion of an accommodation space (511) capable of accommodating an external wearable electronic device (600). For example, the accommodation space (511) may have an inner diameter that is the same as an outer diameter of the wearable electronic device (600). For example, the inner diameter of the charging body (510) may have a size that is the same as an outer diameter of the wearable electronic device (600). For example, the interior of the charging body (510) may be filled with a synthetic resin (e.g., plastic, silicone, or epoxy), thereby reducing changes in the positions of electronic components (e.g., a battery (520), a processor (550), or a power management module (560)) provided therein.

[0101] For example, the charging body (510) may include an outer surface (510-1) positioned outside the receiving space (511), an inner surface (510-2) positioned toward the central axis (O) of the receiving space (511), a first side surface (510-3) extending from one side (e.g., the - X direction of FIG. 5) of the outer surface (510-1) toward the central axis (O) of the receiving space (511), and a second side surface (510-4) extending from the other side (e.g., the + X direction of FIG. 5) of the outer surface (510-1) toward the central axis (O) of the receiving space (511) and positioned opposite the first side surface (510-3).

[0102] According to one embodiment, at least a portion of the outer surface (e.g., the outer peripheral surface (510-1), the first side (510-3), or the second side (510-4)) of the charging body (510) may be formed of a synthetic resin. For example, the synthetic resin may include an elastic material (e.g., silicone or rubber (e.g., fluoroelastomer)). With such a configuration, when another body (e.g., another adjacent finger) adjacent to the body (e.g., a finger) on which the wearable charging device (500) is worn comes into contact with the wearable charging device (500), the tactile sensation felt by the user may be improved. For example, the outer surface (e.g., the outer peripheral surface (510-1)) of the charging body (510) may be formed of a metal. With such a configuration, the aesthetic appeal of the wearable charging device (500) may be improved. For example, a wearable charging device (500) can be formed by performing an epoxy molding process while forming the outer surface of the charging body (510) with metal and arranging electronic components inside.

[0103] According to one embodiment, the thickness of the inner surface (510-2) may be the same as the thickness of the wearable electronic device (600) based on the direction in which the wearable electronic device (600) is inserted or removed from the wearable charging device (500) (e.g., + / - X direction in FIG. 5). With this configuration, when the wearable charging device (500) and the wearable electronic device (600) are coupled to each other, the second side (510-4) of the wearable charging device (500) and the second side (610-4) of the wearable electronic device (600) may be positioned on the same plane. According to this structure, when the wearable charging device (500) and the wearable electronic device (600) are combined, the portion of the side of the wearable device set (500, 600) that protrudes outward or is sunken inward can be reduced, thereby improving the user's wearing comfort. Meanwhile, it should be noted that the thickness of the inner surface (510-2) is not necessarily the same as the thickness of the wearable electronic device (600). For example, the inner surface (510-2) may have an inner surface of a closed surface shape that completely surrounds the receiving space (511), but is not limited thereto. For example, a portion of the inner surface (510-2) may be open and may have a shape that surrounds only a portion of the receiving space (511).

[0104] According to one embodiment, the second side (510-4) may have a shape that interconnects the outer surface (510-1) and the inner surface (510-2). For example, the second side (510-4) and the second side (610-4) of the wearable electronic device (600) may be positioned on the same plane, but it should be noted that the present invention is not limited thereto.

[0105] For example, the volume of the charging body (510) may be larger than the volume of the extension part (530). For example, at least a portion of at least one electronic component (e.g., a battery (520), a processor (550), a power management module (560), or an electronic component of FIG. 1) provided inside the wearable charging device (500) may be placed in the charging body (510), which has relatively more free space compared to the extension part (530).

[0106] According to one embodiment, a battery (520) may be installed in the charging body (510). For example, the battery (520) may store electrical energy for generating current supplied to the charging coil (540). For example, the battery (520) may supply power to a processor (550) or a power management module (560).

[0107] According to one embodiment, the extension portion (530) may extend from the charging body (510) toward the central axis (O) of the receiving space (511) and may have a donut shape with an empty center. For example, the extension portion (530) may wrap around at least a portion of a side surface of the wearable electronic device (600). For example, the extension portion (530) may have a shape that extends parallel to a side surface of the charging body (510) (e.g., the first side surface (510-3) or the second side surface (510-4)), but is not limited thereto. For example, the extension portion (530) may also have a shape that extends in a vertical direction from the inner surface (510-2) of the charging body (510).

[0108] For example, at least a part or all of the extension (530) may be formed of a non-metallic material (e.g., synthetic resin). Through such a configuration, the shielding of the magnetic field (B) generated by the charging coil (540) may be reduced. For example, the outer peripheral surface (610-1) of the ring-shaped body (610) may be formed of a metallic material, and at least a part of the inner peripheral surface (610-2) and the side surfaces (610-3, 610-4) may be formed of a non-metallic material. In this case, it is difficult for a magnetic field to pass through the outer peripheral surface (610-1) of the ring-shaped body (610). According to one embodiment, by arranging the charging coil (540) in the extension (530), power can be transmitted from the charging coil (540) to the receiving coil (640) of the wearable electronic device (600) through the inner surface (610-2) and / or the side surface (610-3, 610-4) of the ring-shaped body (610).

[0109] For example, the extension (530) may include an inner surface (530-1) positioned toward the central axis (O) of the receiving space (511), a mounting surface (530-2) facing a side surface (e.g., a first side surface (610-3)) of the ring-shaped body (610), and an outer surface (530-3) positioned between the inner surface (530-1) and the first side surface (510-3) of the charging body (510).

[0110] According to one embodiment, the width of the mounting surface (530-2) of the extension portion (530) may be the same as the width of the first side (610-3) of the ring-shaped body (610). According to one embodiment, when the wearable charging device (500) and the wearable electronic device (600) are coupled, the inner circumferential surface (530-1) of the extension portion (530) may be positioned parallel to the inner circumferential surface (610-2) of the ring-shaped body (610) on the same curved surface. With this structure, when the wearable charging device (500) and the wearable electronic device (600) are coupled, the inner diameter of the wearable device set (500, 600) may be the same over the entire area, thereby improving the user's wearing comfort. Meanwhile, it should be noted that the width of the settling surface (530-2) and the position of the inner circumference (530-1) are not necessarily limited to this.

[0111] According to one embodiment, the outer side surface (530-3) may be positioned on the same plane as the first side surface (510-3) of the charging body (510). With this configuration, the portion of the side surface of the wearable charging device (500) that protrudes outward or is sunken inward may be reduced, thereby improving the user's wearing comfort. Meanwhile, it should be noted that the outer side surface (530-3) is not necessarily required to be positioned on the same plane as the first side surface (510-3) of the charging body (510). For example, the outer side surface (530-3) may have a shape that protrudes outward (e.g., in the - X direction of FIG. 5) or is sunken inward (e.g., in the + X direction of FIG. 5) more than the first side surface (510-3) of the charging body (510).

[0112] According to one embodiment, the charging coil (540) may transmit power to the wearable electronic device (600) using power supplied from the battery (520). For example, the charging coil (540) may be installed in the extension portion (530). For example, the charging coil (540) may have a shape that is wound multiple times in the circumferential direction of the receiving space (511). For example, the charging coil (540) may have a shape that is wound in one of a clockwise and counterclockwise direction based on the central axis (O) of the receiving space (511), and the radius from the central axis (O) increases as it goes in the one direction. According to such a shape, the thickness of the charging coil (540) can be made thinner than a spring-shaped coil formed by winding multiple times with the same diameter. As the thickness of the charging coil (540) becomes thinner, the thickness of the extension portion (530) can become thinner. In other words, the width of the inner surface (530-1) of the extension portion (530) can be reduced. For example, the charging coil (540) can be arranged to be closer to the mounting surface (530-2) among the mounting surface (530-2) and the outer surface (530-3) of the extension portion (530), but is not limited thereto. For example, when the charging coil (540) is arranged to be closer to the mounting surface (530-2) (+ X direction in FIG. 5), the power transmission efficiency of the charging coil (540) can be improved.

[0113] For example, the charging coil (540) can receive external power from an external charger (e.g., the charger (300) of FIG. 3) to supply power to the battery (520). For example, one charging coil (540) can function as both a power transmitting coil and a power receiving coil. Meanwhile, it should be noted that the wearable charging device (500) may also include, in addition to the charging coil (540), a receiving coil (not shown) (e.g., the power receiving circuit (359) of FIG. 3) capable of receiving external power from an external charger to supply power to the battery (520).

[0114] According to one embodiment, an electronic component (e.g., a processor (550) or a power management module (560)) provided inside a wearable charging device (500) may receive power from a battery (520). For example, the electronic component may be positioned on the opposite side of the battery (520) based on the central axis (O) of the receiving space (511). For example, an electronic component (e.g., a processor (550) or a power management module (560)) that occupies the largest volume among the electronic components excluding the battery (520) may be positioned on the opposite side of the battery (520). For example, a plurality of electronic components (e.g., a processor (550) and a power management module (560)) excluding the battery (520) may be positioned on the opposite side of the battery (520). With this configuration, the maximum protruding height of the wearable charging device (500) may be reduced, thereby improving the user's wearing comfort.

[0115] According to one embodiment, as shown in FIG. 6, the height from the central axis (O) of the receiving space (511) to the outer surface of the charging body (510) may vary by region. With this shape, the user's wearing comfort can be improved by placing electronic components (e.g., a battery (520), a processor (550), or a power management module (560)) in a location that relatively less interferes with the user's body movement (e.g., toward the back of the hand or toward the palm).

[0116] For example, the charging body (510) may include a base region (512) and a protruding region (513). Here, the “base region” may be defined as a region located within a minimum distance (D) from the central axis (O) of the receiving space (511) to the outermost portion of the charging body (510). The “protruding region” may be defined as a region protruding outward from the above-described “base region” in the charging body (510). The base region (512) and the protruding region (513) may be understood as regions that are partitioned within the charging body (510).

[0117] For example, the cross-section of the protruding region (513) (e.g., the cross-section in the YZ plane direction of FIG. 6) may have a rectangular shape. With such a shape, the arrangement of electronic components having a rectangular shape (e.g., a battery (520), a processor (550), or a power management module (560)) may be facilitated, and the space utilization within the protruding region (513) may be improved. Meanwhile, it should be noted that the shape of the protruding region (513) is not limited to a rectangular parallelepiped shape.

[0118] According to one embodiment, at least a portion of the battery (520) may be positioned in the protruding area (513). For example, at least a portion of the battery (520) may be positioned in the most outwardly protruding portion of the charging body (510) (e.g., the protruding area (513)). With this arrangement, by positioning the battery (520) in the protruding area (513) that occupies a relatively large volume, the capacity of the battery that can be mounted on the wearable charging device (500) may be increased. For example, a portion that occupies more than two-thirds of the volume of the battery (520) may be positioned in the protruding area (513), and the remaining portion may be positioned in the base area (512). For example, the entire portion of the battery (520) may be positioned in the protruding area (513).

[0119] According to one embodiment, the protruding region (513) may include a first protruding region (513-1) that protrudes in a first direction (e.g., the + Z direction in FIG. 6) from the base region (512), and a second protruding region (513-2) that protrudes in a second direction (e.g., the - Z direction in FIG. 6) opposite to the first direction from the base region (512). For example, at least one electronic component (e.g., a battery (520), a processor (550), or a power management module (560)) may be disposed in each of the first protruding region (513-1) and the second protruding region (513-2). For example, the battery (520), which has the largest volume among the electronic components, may be disposed in the second protruding region (513-2), and a plurality of electronic components (e.g., a processor (550) and a power management module (560)) may be disposed in the first protruding region (513-1). For example, it is to be noted that the protruding region (513) may be formed to protrude in only one direction from the base region (512), or may be formed to protrude in three or more directions.

[0120] According to one embodiment, some of the base regions (512) (512-1, 512-2) may be exposed to the outside. For example, two regions (512-1, 512-2) located in opposite directions on the outer surface of the charging body (510) may not have a protruding region (513). With this configuration, when a user wears the wearable charging device (500), the pressure felt by the surrounding body (e.g., another adjacent finger) of the body (e.g., a finger) on which the wearable charging device (500) is worn may be reduced.

[0121] For example, at least a portion of the exposed portions (512-1, 512-2) of the base region (512) may be formed of a synthetic resin. For example, a portion of the base region (512) in which the protruding region (513) is not formed may be formed of a synthetic resin. For example, two regions (512-1, 512-2) positioned in opposite directions on the outer surface of the charging body (510) may be formed of a synthetic resin. For example, the synthetic resin may include an elastic material (e.g., silicone or rubber (e.g., fluoroelastomer)). For example, the base region (512) may be formed of a material that is more flexible than the protruding region (513). With this configuration, when another body (e.g., another adjacent finger) adjacent to the body (e.g., a finger) on which the wearable charging device (500) is worn comes into contact with the wearable charging device (500), the tactile sensation felt by the user may be improved.

[0122] For example, the portions (512-1, 512-2) positioned in a direction (e.g., + / - Y direction in FIG. 6) orthogonal to the protruding direction (e.g., + / - Z direction in FIG. 6) of the protruding portion (513) of the base portion (512) may be formed of a synthetic resin. When the wearable charging device (500) includes the protruding portion (513), the user may wear the wearable charging device (500) in a manner as shown in FIG. 7 so that the protruding portion (513) does not come into contact with another adjacent body. In this way, by forming the portion of the outer surface of the wearable charging device (500) that is likely to come into contact with another adjacent body using a synthetic resin, the user's wearing comfort can be improved. Meanwhile, as described above, the outer surface of the wearable charging device (500) is not necessarily limited to being formed of a synthetic resin.

[0123] Figure 8 is a front view of a wearable charging device according to one embodiment.

[0124] Referring to FIG. 8, a wearable charging device (800) according to an embodiment (e.g., a wearable charging device (101) of FIG. 1, a wearable charging device (200) of FIG. 2, a wearable charging device (350) of FIG. 3, or a wearable charging device (500) of FIG. 5) includes a charging body (810), a battery (820) (e.g., a battery (189) of FIG. 1, a battery (354) of FIG. 3, or a battery (520) of FIG. 5), an extension (830) (e.g., an extension (530) of FIG. 5), a charging coil (not shown) (e.g., a power receiving circuit (359) of FIG. 3, a power transmitting circuit (358) of FIG. 3, or a charging coil (540) of FIG. 5), a processor (850) (e.g., a processor (120) of FIG. 1, a processor (352) of FIG. 3, or a processor (550) of FIG. 5)). and a power management module (860) (e.g., the power management module (188) of FIG. 1, the PMIC (355) of FIG. 3, or the power management module (560) of FIG. 5).

[0125] According to one embodiment, the charging body (810) may include a base region (812) (e.g., the base region (512) of FIG. 6) and a protruding region (813) (e.g., the protruding region (513) of FIG. 6). The base region (812) and the protruding region (813) may be defined based on a boundary surface located at a minimum distance (D) from a central axis (O) of the receiving space (811) (e.g., the receiving space (511) of FIG. 5) to the outermost portion of the charging body (810).

[0126] For example, a cross-section of the protruding area (813) (e.g., a cross-section in the YZ plane direction of FIG. 8) may have a crescent shape corresponding to a portion of an ellipse. For example, the outer circumference of the protruding area (813) may be formed as a curved surface. With such a shape, even if the protruding area (813) comes into contact with the user's body, the possibility of the user being injured may be reduced.

[0127] For example, the battery (820) may include a flexible, bendable battery pack. For example, the battery (820) may be inserted into the interior of the charging body (810) in a bent state to conform to the aforementioned crescent shape. With this configuration, the capacity of the battery (820) that can be installed inside the wearable charging device (800) may be increased compared to a case where a rectangular parallelepiped battery formed of a rigid material is placed inside the charging body (810).

[0128] For example, the protruding area (813) may include a first protruding area (813-1) (e.g., the first protruding area (513-1) of FIG. 6) and a second protruding area (813-2) (e.g., the second protruding area (513-2) of FIG. 6).

[0129] For example, the battery (820) may include a first battery (820-1) arranged in a first protruding area (813-1) and a second battery (820-2) arranged in a second protruding area (813-2). With such an arrangement, the total capacity of the battery (820) that can be accommodated in the wearable charging device (800) may be increased.

[0130] For example, among a plurality of electronic components (e.g., a processor (850) and a power management module (860)) excluding a battery (820), some (e.g., the processor (850)) may be placed in a first protruding area (813-1), and the remaining (e.g., the power management module (860)) may be placed in a second protruding area (813-2). Through such placement, the weight of the wearable charging device (800) may be evenly distributed.

[0131] In the following embodiments, components that have common functions will be described using the same names. Even if there is no explicit description, unless there is a description to the contrary, the description described in one embodiment can be applied to other embodiments, and a specific description will be omitted to the extent of overlap. For example, the embodiment of any one of the drawings among FIGS. 9 to 16 below can be combined with the embodiment of other drawings including FIGS. 9 to 16. For example, it should be noted that the first end (1191) and the second end (1192) of FIG. 11 may have a hook and groove structure, like the first end (1014) and the second end (1015) of FIG. 10.

[0132] FIG. 9 is a cross-sectional view showing a wearable charging device according to one embodiment being magnetically fastened to a wearable electronic device.

[0133] Referring to FIG. 9, a wearable charging device (900) according to an embodiment (e.g., the wearable charging device (500) of FIG. 5) can be magnetically fastened to a wearable electronic device (900') (e.g., the wearable electronic device (600) of FIG. 5). With this configuration, the wearable charging device (900) and the wearable electronic device (900') can be closely coupled to each other, and the positions of the coils (940, 940') provided in each of the wearable charging device (900) and the wearable electronic device (900') can be correctly aligned with each other, so that charging efficiency can be improved.

[0134] According to one embodiment, a wearable electronic device (900') may include a ring-shaped body (910') (e.g., ring-shaped body (610) of FIG. 5), a receiving coil (940') (e.g., receiving coil (640) of FIG. 5), and a magnet (970').

[0135] According to one embodiment, the magnet (970') may be biasedly installed closer to one of the two sides of the ring-shaped body (910'), but is not limited thereto. For example, when the magnet (970') is biasedly installed in a direction closer to the magnet (970) of the wearable charging device (900) (e.g., the -X direction of FIG. 9) based on a state in which the wearable charging device (900) and the wearable electronic device (900') are coupled, the coupling force between the wearable charging device (900) and the wearable electronic device (900') due to magnetism may be improved.

[0136] According to one embodiment, a wearable charging device (900) may include a charging body (910) (e.g., a charging body (510) of FIG. 5), a battery (920) (e.g., a battery (520) of FIG. 5), an extension (930) (e.g., an extension (530) of FIG. 5), a charging coil (940) (e.g., a charging coil (540) of FIG. 5), a processor (950) (e.g., a processor (550) of FIG. 5), a power management module (960) (e.g., a power management module (560) of FIG. 5), a magnet (970), and a magnetic field sensor (980).

[0137] According to one embodiment, the magnet (970) may be disposed in the extension portion (930) and magnetically coupled to the wearable electronic device (900'). Based on the state in which the wearable charging device (900) and the wearable electronic device (900') are coupled, the magnet (970) may be disposed at a position opposite to the position at which the magnet (970') of the wearable electronic device (900') is installed. For example, the wearable charging device (900) may include a plurality of magnets (970). The plurality of magnets (970) may be disposed in opposite directions with respect to the central axis (O) of the receiving space (e.g., the receiving space (511) of FIG. 5), for example.

[0138] According to one embodiment, the magnetic field sensor (980) may be disposed in the charging body (910) or the extension (930). For example, the magnetic field sensor (980) may detect a change in magnetic force passing through the magnetic field sensor (980). For example, the magnetic field sensor (980) may be disposed on one side of the magnet (970) of the wearable charging device (900) and may detect a change in the magnetic field generated when the magnet (970') of the wearable electronic device (900') approaches. Through this configuration, the magnetic field sensor (980) may detect whether the wearable charging device (900) and the wearable electronic device (900') are in close proximity to each other. For example, the magnetic field sensor (980) may include a Hall sensor.

[0139] FIG. 10 is a drawing showing a state in which both ends of a wearable charging device according to one embodiment are spread apart.

[0140] The left (e.g., - Y direction) drawing of FIG. 10 is a partial cross-sectional view showing a wearable charging device (1000) (e.g., wearable charging device (500) of FIG. 5) in a closed state according to one embodiment, and the right (e.g., + Y direction) drawing of FIG. 10 is a view showing a wearable charging device (1000) in an open state.

[0141] Referring to FIG. 10, a wearable charging device (1000) according to one embodiment may include a charging body (1010) (e.g., a charging body (510) of FIG. 5), a battery (not shown) (e.g., a battery (520) of FIG. 5), an extension (1030) (e.g., an extension (530) of FIG. 5), a charging coil (1040) (e.g., a charging coil (540) of FIG. 5), a processor (not shown) (e.g., a processor (550) of FIG. 5), a power management module (not shown) (e.g., a power management module (560) of FIG. 5), a first end (1014), and a second end (1015).

[0142] According to one embodiment, the first end (1014) and the second end (1015) can be separated from each other as shown in the right drawing of FIG. 10. With this configuration, one side of the wearable charging device (1000) according to one embodiment is opened, so that the user can insert his / her body into the receiving space (1011) (e.g., the receiving space (511) of FIG. 5) through the open gap.

[0143] For example, as shown in the left drawing of Fig. 10, when the first end (1014) and the second end (1015) are interconnected, the receiving space (1011) can form a closed surface. For example, one of the first end (1014) and the second end (1015) (e.g., the first end (1014)) can have a hook shape, and the other one (e.g., the second end (1015)) can have a groove shape that engages with the above-described hook shape. According to this configuration, since the two ends (1014, 1015) have a structure in which they engage with each other, one side of the wearable charging device (1000) can be opened or closed depending on whether the two ends (1014, 1015) are fastened.

[0144] In one embodiment, a portion of the charging body (1010) and / or a portion of the extension (1030) may be formed of an elastic material (e.g., silicone or rubber). With this configuration, the first end (1014) and the second end (1015) may be separated and moved away from each other, thereby allowing the receiving space (1011) to be opened to the outside in a radial direction, while allowing the first end (1014) and the second end (1015) to return to their original shape (e.g., ring shape) when no external force is applied.

[0145] According to one embodiment, among the wearable charging device (1000), a portion (E) located opposite to the portion where the first end (1014) and the second end (1015) are interconnected (e.g., in the - Y direction of FIG. 10) with respect to the central axis (O) of the receiving space (1011) may be formed of an elastic material. The above-described portion (E) may be referred to as an "elastic deformation portion." For example, the elastic deformation portion (E) may be formed in a portion where a protruding area (e.g., a protruding area (513) of FIG. 6) is not formed. With such a configuration, the wearable charging device (1000) may be allowed to deform in a direction in which the first end (1014) and the second end (1015) move away from each other while reducing the external force applied to an electronic component (e.g., a processor (550) or a power management module (560) of FIG. 5) disposed in the protruding area.

[0146] According to one embodiment, the charging coil (1040) may be installed in the extension (1030). For example, the charging coil (1040) may have a shape that is wound multiple times in the circumferential direction of the receiving space (1011). For example, the charging coil (1040) may be wound alternately in a clockwise and counterclockwise direction with respect to the central axis (O) of the receiving space (1011). With this shape, the first end (1014) and the second end (1015) may be separated from each other without physically separating the middle portion of the charging coil (1040). For example, the direction in which the charging coil (1040) is wound may be switched with the boundary being the portion where the first end (1014) and the second end (1015) contact each other.

[0147] FIG. 11 is a drawing showing a connection structure between two ends of a wearable charging device according to one embodiment.

[0148] Referring to FIG. 11, a wearable charging device (1100) according to an embodiment (e.g., the wearable charging device (500) of FIG. 5) may include a charging body (1110) (e.g., the charging body (510) of FIG. 5), a battery (not shown) (e.g., the battery (520) of FIG. 5), an extension (1130) (e.g., the extension (530) of FIG. 5), a charging coil (1140) (e.g., the charging coil (540) of FIG. 5), a processor (not shown) (e.g., the processor (550) of FIG. 5), a power management module (not shown) (e.g., the power management module (560) of FIG. 5), a first end (1191) (e.g., the first end (1014) of FIG. 10)) and a second end (1192) (e.g., the second end (1015) of FIG. 10).

[0149] According to one embodiment, the first end (1191) may include a first facing surface (1191-1) facing the second end (1192) and a first magnet (1191-2) installed on the first facing surface (1191-1), with the first end (1191) and the second end (1192) being mutually coupled.

[0150] According to one embodiment, the second end (1192) may include a second facing surface (1192-1) facing the first facing surface (1191-1) and a second magnet (1192-2) installed on the second facing surface (1192-1) in a state where the first end (1191) and the second end (1192) are mutually coupled.

[0151] According to one embodiment, the second magnet (1192-2) may be installed at a position facing the first magnet (1191-2) while the first end (1191) and the second end (1192) are mutually coupled. The second magnet (1192-2) may be magnetically coupled to the first magnet (1191-2), thereby enhancing the coupling force between the first end (1191) and the second end (1192).

[0152] According to one embodiment, the charging coil (1140) may have a shape that is wound in one of a clockwise and counterclockwise direction with respect to the central axis (O) of the receiving space (511), similar to the charging coil (540) of FIG. 5. In this case, when the first end (1191) and the second end (1192) are separated from each other, a portion of the charging coil (1140) may be separated from each other. For example, the charging coil (1140) may include a first terminal (1140-1) and a second terminal (1140-2) that are physically separable from each other.

[0153] According to one embodiment, the first terminal (1140-1) and the second terminal (1140-2) may be physically contacted and electrically connected when the first end (1191) and the second end (1192) are interconnected, and may be physically and electrically separated when the first end (1191) and the second end (1192) are separated from each other. For example, either one of the first terminal (1140-1) and the second terminal (1140-2) (e.g., the first terminal (1140-1)) may have an elastic contact structure (e.g., a pogo pin structure). For example, the first terminal (1140-1) may include an elastic pin that protrudes from the first facing surface (1191-1) when no external force is applied. For example, the remaining one of the first terminal (1140-1) and the second terminal (1140-2) (e.g., the second terminal (1140-2)) may have a metal pad structure. With such a structure, even when a gap exists between the first end (1191) and the second end (1192), the possibility of the first terminal (1140-1) and the second terminal (1140-2) being stably contacted can be improved.

[0154] FIG. 12 is a cross-sectional view of a wearable charging device according to one embodiment.

[0155] Referring to FIG. 12, a wearable charging device (1200) (e.g., the wearable charging device (500) of FIG. 5) according to one embodiment may include a charging body (1210) (e.g., the charging body (510) of FIG. 5), a battery (1220) (e.g., the battery (520) of FIG. 5), a first extension (1230) (e.g., the extension (530) of FIG. 5), a second extension (1230') (e.g., the extension (530) of FIG. 5), a first charging coil (1240) (e.g., the charging coil (540) of FIG. 5), a second charging coil (1240') (e.g., the charging coil (540) of FIG. 5), a processor (1250) (e.g., the processor (550) of FIG. 5), and a power management module (1260) (e.g., the power management module (560) of FIG. 5). there is.

[0156] According to one embodiment, the second extension part (1230') may have a shape extending inwardly toward the central axis (O) of the receiving space (1211) (e.g., the receiving space (511) of FIG. 5) from the side of the charging body (1210) located opposite the first extension part (1230). For example, the second extension part (1230') may be referred to as an "additional extension part." An external wearable electronic device (not shown) (e.g., the wearable electronic device (600) of FIG. 5) received in the receiving space (1211) may be supported on both sides by the first extension part (1230) and the second extension part (1230').

[0157] According to one embodiment, the second charging coil (1240') may transmit power to the wearable electronic device using power supplied from the battery (1220). The second charging coil (1240') may be biasedly arranged closer to the side of the second extension (1230') that is closer to the receiving space (1211), but is not limited thereto. For example, the second charging coil (1240') may also be referred to as an "additional charging coil."

[0158] According to the above-described structure, regardless of the insertion direction of the wearable electronic device, at least one of the first charging coil (1240) and the second charging coil (1240') can transmit power to the wearable electronic device. For example, both the first charging coil (1240) and the second charging coil (1240') may transmit power to the wearable electronic device simultaneously or sequentially.

[0159] According to one embodiment, the wearable charging device (1200) may have a structure in which a portion is separated, as illustrated in FIG. 10 or FIG. 11. For example, the wearable charging device (1200) may include a first end (e.g., the first end (1014) of FIG. 10 or the first end (1191) of FIG. 11) and a second end (e.g., the second end (1015) of FIG. 10 or the second end (1192) of FIG. 11)) that are mutually separable. With a portion of the wearable charging device (1200) separated, a user can easily insert a wearable electronic device into the receiving space (1211).

[0160] According to one embodiment, at least a portion of the charging body (1210), the first extension portion (1230), and the second extension portion (1230') of the wearable charging device (1200) may be formed of an elastic material. A user may insert a wearable electronic device into the receiving space (1211) by deforming a portion of the wearable charging device (1200).

[0161] FIG. 13 is a perspective view showing the internal configuration of a wearable electronic device according to one embodiment.

[0162] Referring to FIG. 13, a wearable electronic device (1300) according to an embodiment (e.g., the wearable electronic device (400) of FIG. 4 or the wearable electronic device (600) of FIG. 5) may include a ring-shaped body (1310) (e.g., the ring-shaped body (610) of FIG. 5), a battery (1320) (e.g., the battery (450) of FIG. 4), an FPCB (1330) (e.g., the FPCB (440) of FIG. 4), and a receiving coil (1340) (e.g., the receiving coil (451) of FIG. 4 or the receiving coil (640) of FIG. 5).

[0163] According to one embodiment, the receiving coil (1340) may be disposed inside the ring-shaped body (1310). For example, the receiving coil (1340) may be disposed at a position close to the inner surface of the ring-shaped body (1310). For example, the receiving coil (1340) may be formed in a curved shape along a region corresponding to a portion of the inner surface of the ring-shaped body (1310). For example, the receiving coil (1340) may be formed in a shape that is wound clockwise or counterclockwise around an imaginary axis (e.g., + Z axis) orthogonal to the central axis (O) of the receiving space (1311) (e.g., receiving space (611) of FIG. 5).

[0164] It should be noted that a wearable charging device (not shown) according to an embodiment of the present document (e.g., a wearable charging device (500) of FIG. 5) can also be applied to a wearable electronic device (1300) illustrated in FIG. 13. For example, a magnetic field generated from a wearable charging device can be formed in a direction that is wound in the direction of the central axis (O) of the receiving space (1311) and a direction that intersects the direction of the central axis (O), and some of the magnetic fields formed in the above-described winding direction can pass through the receiving coil (1340).

[0165] Fig. 14 is a drawing showing a wearable electronic device according to one embodiment mounted on a charger. Fig. 15 is a cross-sectional view taken in direction II of Fig. 14.

[0166] FIG. 15(A) is a cross-sectional view showing a state in which a wearable electronic device (1470) (e.g., a wearable electronic device (600) of FIG. 5) according to an embodiment is placed on a charger (1400) (e.g., a charger (300) of FIG. 3) according to an embodiment. FIG. 15(B) is a cross-sectional view showing a state in which a wearable charging device (1450) (e.g., a wearable charging device (500) of FIG. 5) according to an embodiment is placed on a charger (1400) according to an embodiment.

[0167] Referring to FIGS. 14 and 15, a wearable charging device (1450) according to an embodiment may be charged using a charger (1400) designed exclusively for a wearable electronic device (1470). According to an embodiment, the charger (1400) may include a mounting plate (1410), a mounting protrusion (1420), and a transmitting coil (1430) (e.g., the power transmitting circuit (309) of FIG. 3). According to an embodiment, the wearable electronic device (1470) may include a ring-shaped body (1471) (e.g., the ring-shaped body (610) of FIG. 5) and a receiving coil (1474) (e.g., the receiving coil (640) of FIG. 5). According to one embodiment, a wearable charging device (1450) may include a charging body (1451) (e.g., charging body (510) of FIG. 5), an extension (1453) (e.g., extension (530) of FIG. 5), and a charging coil (1454) (e.g., charging coil (540) of FIG. 5).

[0168] According to one embodiment, the mounting plate (1410) may have a flat shape and support a side surface of the wearable electronic device (1470). For example, similar to the wearable electronic device (1470), the side surface of the extension portion (1453) of the wearable charging device (1450) may be supported by the mounting plate (1410). For example, the side surface of the extension portion (1453) may be formed flat.

[0169] According to one embodiment, the mounting protrusion (1420) may be formed to protrude from the mounting plate (1410) and be inserted into the receiving space (e.g., the receiving space (611) of FIG. 5) of the wearable electronic device (1470). For example, the diameter of the mounting protrusion (1420) may be formed to be the same as the diameter of the receiving space of the wearable electronic device (1470), thereby preventing the wearable electronic device (1470) from moving freely while being mounted on the mounting protrusion (1420). For example, the diameter of the hollow space formed inside the extension portion (1453) of the wearable charging device (1450) may be formed to be the same as the diameter of the receiving space of the wearable electronic device (1470). For example, when the wearable charging device (1450) is coupled to the wearable electronic device (1470), the distance (R1) from the central axis (O) of the receiving space (1451-1) (e.g., the receiving space (511) of FIG. 5) to the inner surface of the extension portion (1453) may be equal to the distance (R1) from the central axis (O) of the receiving space (1451-1) to the inner surface of the ring-shaped body (1471). According to this structure, similar to the wearable electronic device (1470), the wearable charging device (1450) can be prevented from moving freely when it is mounted on the mounting protrusion (1420).

[0170] According to one embodiment, the transmitting coil (1430) may have a shape that is wound multiple times based on the central axis (O) of the mounting protrusion (1420). For example, the transmitting coil (1430) may have a shape that is wound in one of the clockwise and counterclockwise directions based on the central axis (O), and the radius from the central axis (O) increases as it goes in the one direction. According to this structure, the main direction of the magnetic field formed by the transmitting coil (1430) is aligned with the direction of the central axis (O) of the receiving coil (1474) of the wearable electronic device (1470), so that the charging efficiency may be improved. For example, the transmitting coil (1430) may be formed inside the mounting protrusion (1420). For example, when the wearable electronic device (1470) is placed on the charger (1400), the height of the receiving coil (1474) may be arranged to be the same as the height of the transmitting coil (1430), but is not limited thereto. For example, when the wearable charging device (1450) is placed on the charger (1400), the height of the charging coil (1454) may be arranged to be the same as the height of the transmitting coil (1430), but is not limited thereto. For example, when the wearable charging device (1450) is coupled to the wearable electronic device (1470), the central axis (O) of the charging coil (1454) of the wearable charging device (1450) may coincide with the central axis (O) of the receiving coil (1474) of the wearable electronic device (1470). According to this structure, the charging efficiency from the charger (1400) to the wearable charging device (1450) can be improved. For example, when the wearable charging device (1450) is coupled to the wearable electronic device (1470), the distance (R2) from the central axis (O) of the receiving space (1451-1) to the charging coil (1454) can be the same as the distance (R2) from the central axis (O) of the receiving space (1451-1) to the receiving coil (1474).According to this structure, the charging efficiency from the charger (1400) to the wearable charging device (1450) can be the same as or similar to the charging efficiency from the charger (1400) to the wearable electronic device (1470).

[0171] FIG. 16 is a cross-sectional view showing a wearable electronic device or a wearable charging device mounted on a charger according to one embodiment.

[0172] FIG. 16(A) is a cross-sectional view showing a state in which a wearable electronic device (1670) according to an embodiment (e.g., a wearable electronic device (600) according to FIG. 5 or a wearable electronic device (1470) according to an embodiment) is placed on a charger (1600) according to an embodiment (e.g., a charger (300) according to FIG. 3 or a charger (1400) according to FIG. 14). FIG. 16(B) is a cross-sectional view showing a state in which a wearable charging device (1650) according to an embodiment (e.g., a wearable charging device (500) according to FIG. 5 or a wearable charging device (1450) according to an embodiment) is placed on a charger (1600) according to an embodiment.

[0173] Referring to FIG. 16, the charger (1600) may include a mounting plate (1610) (e.g., the mounting plate (1410) of FIG. 15), a mounting protrusion (1620) (e.g., the mounting protrusion (1420) of FIG. 15), and a transmitting coil (1630) (e.g., the power transmission circuit (309) of FIG. 3 or the transmitting coil (1430) of FIG. 15). According to one embodiment, the wearable electronic device (1670) may include a ring-shaped body (1671) (e.g., the ring-shaped body (610) of FIG. 5 or the ring-shaped body (1471) of FIG. 15) and a receiving coil (1674) (e.g., the receiving coil (640) of FIG. 5 or the receiving coil (1474) of FIG. 15). According to one embodiment, a wearable charging device (1650) may include a charging body (1651) (e.g., the charging body (510) of FIG. 5 or the charging body (1451) of FIG. 15), an extension (1653) (e.g., the extension (530) of FIG. 5 or the extension (1453) of FIG. 15), and a charging coil (1654) (e.g., the charging coil (540) of FIG. 5 or the charging coil (1454) of FIG. 15).

[0174] According to one embodiment, the transmitting coil (1630) may be formed inside the mounting plate (1610). For example, when the wearable electronic device (1670) is mounted on the charger (1600), the receiving coil (1674) may be positioned in a position to overlap the transmitting coil (1630) in a direction perpendicular to the mounting plate (1610), but is not limited thereto. For example, the distance (R) from the central axis (O) of the receiving space (1651-1) (e.g., the receiving space (511) of FIG. 5 or the receiving space (1451-1) of FIG. 15) to the transmitting coil (1630) may be the same as the distance (R) to the receiving coil (1674), but is not limited thereto. For example, when the wearable charging device (1650) is placed on the charger (1600), the charging coil (1654) may be placed in a position that overlaps the transmitting coil (1630) in a direction perpendicular to the placing plate (1610), but is not limited thereto. For example, the distance (R) from the central axis (O) of the receiving space (1651-1) to the transmitting coil (1630) may be the same as the distance (R) to the charging coil (1653), but is not limited thereto.

[0175] According to one embodiment, a wearable charging device (101; 200; 350; 500; 800; 900; 1000; 1100; 1200; 1450; 1650) comprises a charging body (510; 810; 910; 1010; 1110; 1210; 1451; 1651) having a shape that surrounds at least a portion of an accommodating space (511; 811; 1011; 1211; 1311; 1451-1; 1651-1) capable of accommodating an external wearable electronic device (202; 370; 400; 600; 900'; 1300; 1470; 1670), a battery (189; 354; 450; 520; 820; 820-1; 820-2; 920; 1220; 1320), an extension portion (530; 830; 930; 1030; 1130; 1230; 1230'; 1453; 1653) extending from the charging body toward the central axis (O) of the receiving space, and a charging coil (540; 940; 1040; 1140; 1240; 1240'; 1454; 1654) installed in the extension portion and capable of transmitting power (P) to the external wearable electronic device using power supplied from the battery.

[0176] According to one embodiment, the volume of the charging body (510; 810; 910; 1010; 1110; 1210; 1451; 1651) may be greater than the volume of the extension part (530; 830; 930; 1030; 1130; 1230; 1230'; 1453; 1653).

[0177] According to one embodiment, the extension portion (530; 830; 930; 1030; 1130; 1230; 1230'; 1453; 1653) may be formed of a non-metallic material.

[0178] According to one embodiment, the wearable charging device may include an electronic component (550; 560; 850; 860; 950; 960; 980; 1250; 1260) that receives power from the battery. For example, the electronic component may be positioned on the opposite side of the battery with respect to the central axis (O) of the receiving space.

[0179] According to one embodiment, the charging body may include a base region (512; 812) located within a minimum distance (D) from the central axis of the receiving space to the outermost portion of the charging body, and a protruding region (513; 513-1; 513-2; 813; 813-1; 813-2) protruding outward from the base region.

[0180] According to one embodiment, at least a portion of the battery (520; 820; 820-1; 820-2) may be located in the protruding area (513; 513-1; 513-2; 813; 813-1; 813-2).

[0181] According to one embodiment, the protruding region (513; 813) may include a first protruding region (513-1; 813-1) protruding in a first direction from the base region, and a second protruding region (513-2; 813-2) protruding in a second direction opposite to the first direction from the base region. For example, the battery (820) may include a first battery (820-1) disposed in the first protruding region, and a second battery (820-2) disposed in the second protruding region.

[0182] According to one embodiment, at least a portion of the externally exposed portion (512-1, 512-2) of the base area (512; 812) may be formed of synthetic resin.

[0183] According to one embodiment, the portion (512-1, 512-2) positioned in a direction orthogonal to the protruding direction of the protruding portion (513; 513-1; 513-2; 813; 813-1; 813-2) of the base portion (512; 812) may be formed of a synthetic resin.

[0184] According to one embodiment, at least a portion of the outer surface of the charging body (510; 810; 910; 1010; 1110; 1210; 1451; 1651) may be formed of synthetic resin.

[0185] According to one embodiment, two regions (512-1, 512-2) located in opposite directions on the outer surface of the charging body may be formed of synthetic resin.

[0186] According to one embodiment, the wearable charging device may include a magnet (970) disposed in the extension portion and capable of magnetically coupling to the external wearable electronic device.

[0187] According to one embodiment, the wearable charging device may include a magnetic field sensor (980) disposed in the charging body or the extension and capable of detecting a change in magnetic force.

[0188] According to one embodiment, the wearable charging device may include a first end (1014; 1191) and a second end (1015; 1192) that are mutually separable. For example, when the first end and the second end are interconnected, the receiving space may form a closed surface.

[0189] According to one embodiment, among the wearable charging devices, a portion (E) located on the opposite side of the portion where the first end (1014; 1191) and the second end (1015; 1192) are interconnected based on the central axis of the receiving space can be elastically deformed.

[0190] According to one embodiment, the charging coil may include a first terminal (1140-1) and a second terminal (1140-2) that are physically separable from each other. For example, when the first end (1191) and the second end (1192) are interconnected, the first terminal and the second terminal may be electrically connected.

[0191] According to one embodiment, a set of wearable devices comprises: (i) a wearable electronic device (202; 370; 400; 600; 900'; 1300; 1470; 1670) having a ring-shaped body (610; 910'; 1310; 1471; 1671) and a receiving coil (451; 640; 940'; 1340; 1474; 1674) provided in the ring-shaped body and capable of receiving power (P), and (ii) a charging body (510; 810; 910;) having a shape that surrounds at least a portion of an accommodation space (511; 811; 1011; 1211; 1311; 1451-1; 1651-1) capable of accommodating the wearable electronic device. 1010; 1110; 1210; 1451; 1651), a battery (189; 354; 450; 520; 820; 820-1; 820-2; 920; 1220; 1320) installed in the charging body, an extension (530; 830; 930; 1030; 1130; 1230; 1230'; 1453; 1653) extending from the charging body toward the central axis (O) of the receiving space and wrapping at least a part of a side of the wearable electronic device, and a charging coil (540; 640; 940'; 1340; 1474; 1674) that is installed in the extension and can transmit power to the receiving coil (451; 640; 940'; 1340; 1474; 1674) using power supplied from the battery. A wearable charging device (101; 200; 350; 500; 800; 900; 1000; 1100; 1200; 1450; 1650) having a 940; 1040; 1140; 1240; 1240'; 1454; 1654) may be included.

[0192] According to one embodiment, when the wearable charging device is coupled to the wearable electronic device, a distance (R1) from the central axis (O) of the receiving space to the inner circumference of the extension (1453; 1653) may be equal to a distance from the central axis of the receiving space to the inner circumference of the ring-shaped body (1471; 1671).

[0193] According to one embodiment, when the wearable charging device is coupled to the wearable electronic device, a distance (R2) from the central axis (O) of the receiving space to the charging coil (1454; 1654) may be equal to a distance from the central axis of the receiving space to the receiving coil (1474; 1674).

[0194] According to one embodiment, a wearable charging device (101; 200; 350; 500; 800; 900; 1000; 1100; 1200; 1450; 1650) comprises a charging body (510; 810; 910; 1010; 1110; 1210; 1451; 1651) having a shape surrounding an external wearable electronic device (202; 370; 400; 600; 900'; 1300; 1470; 1670) and an accommodation space (511; 811; 1011; 1211; 1311; 1451-1; 1651-1) having an inner diameter equal to an outer diameter, at least a portion of which is external to the charging body It may include a battery (189; 354; 450; 520; 820; 820-1; 820-2; 920; 1220; 1320) arranged at the most protruding part, an extension part (530; 830; 930; 1030; 1130; 1230; 1230'; 1453; 1653) having a shape extending inward from the side of the charging body toward the central axis of the receiving space, and a charging coil (540; 940; 1040; 1140; 1240; 1240'; 1454; 1654) installed in the extension part and capable of transmitting power to the external wearable electronic device using power supplied from the battery.

[0195] According to one embodiment, the wearable charging device may include an additional extension portion (1230') having a shape extending inward toward the central axis (O) of the receiving space (1211) from another side positioned opposite the side of the charging body (1210), and an additional charging coil (1240') installed in the additional extension portion and capable of transmitting power to the external wearable electronic device using power supplied from the battery (1220).

[0196] According to one embodiment, the charging coil (540; 940; 1040; 1140; 1240; 1240'; 1454; 1654) can receive external power from an external charger to supply power to the battery.

[0197] According to one embodiment, the wearable charging device may include a receiving coil capable of receiving external power from an external charger to supply power to the battery.

[0198] According to one embodiment, the embodiments of this document are intended to be illustrative and not restrictive. Various modifications may be made to the details of the disclosure, including those contained within the scope of the appended claims and their equivalents. Any of the embodiments described herein may be used in combination with any of the embodiments described herein.

Claims

1. In a wearable charging device (101; 200; 350; 500; 800; 900; 1000; 1100; 1200; 1450; 1650), A charging body (510; 810; 910; 1010; 1110; 1210; 1451; 1651) having a shape that surrounds at least a portion of a receiving space (511; 811; 1011; 1211; 1311; 1451-1; 1651-1) capable of receiving an external wearable electronic device (202; 370; 400; 600; 900'; 1300; 1470; 1670); A battery (189; 354; 450; 520; 820; 820-1; 820-2; 920; 1220; 1320) installed in the above charging body; An extension (530; 830; 930; 1030; 1130; 1230; 1230'; 1453; 1653) extending from the charging body toward the central axis (O) of the receiving space; and A charging coil (540; 940; 1040; 1140; 1240; 1240'; 1454; 1654) installed in the extension and capable of transmitting power (P) to the external wearable electronic device using power supplied from the battery, Wearable charging device.

2. In paragraph 1, The volume of the above charging body (510; 810; 910; 1010; 1110; 1210; 1451; 1651) is larger than the volume of the above extension part (530; 830; 930; 1030; 1130; 1230; 1230'; 1453; 1653). Wearable charging device.

3. In paragraph 1 or 2, The above extensions (530; 830; 930; 1030; 1130; 1230; 1230'; 1453; 1653) are formed of a non-metallic material. Wearable charging device.

4. In any one of paragraphs 1 to 3, The wearable charging device further includes an electronic component (550; 560; 850; 860; 950; 960; 980; 1250; 1260) that receives power from the battery, The above electronic component is located on the opposite side of the battery based on the central axis (O) of the above receiving space. Wearable charging device.

5. In any one of paragraphs 1 to 4, The above charging body, A base area (512; 812) located within a minimum distance (D) from the central axis of the above-mentioned receiving space to the outermost part of the above-mentioned charging body; and Including a protruding region (513; 513-1; 513-2; 813; 813-1; 813-2) protruding outward from the above base region, Wearable charging device.

6. In any one of paragraphs 1 to 5, At least a portion of the above battery (520; 820; 820-1; 820-2) is located in the protruding area (513; 513-1; 513-2; 813; 813-1; 813-2). Wearable charging device.

7. In any one of paragraphs 1 to 6, The above protruding area (513; 813) is A first protruding region (513-1; 813-1) protruding in a first direction from the base region; and It includes a second protruding region (513-2; 813-2) that protrudes in a second direction opposite to the first direction from the base region, The above battery (820) is A first battery (820-1) arranged in the first protruding area; and Including a second battery (820-2) arranged in the second protruding area, Wearable charging device.

8. In any one of paragraphs 1 to 7, At least a portion of the externally exposed portion (512-1, 512-2) of the above base area (512; 812) is formed of synthetic resin. Wearable charging device.

9. In any one of paragraphs 1 to 8, Among the above base areas (512; 812), the portions (512-1, 512-2) located in a direction perpendicular to the protruding direction of the protruding areas (513; 513-1; 513-2; 813; 813-1; 813-2) are formed of synthetic resin. Wearable charging device.

10. In any one of paragraphs 1 to 9, Two areas (512-1, 512-2) located in opposite directions on the outer surface of the above charging body are formed of synthetic resin. Wearable charging device.

11. In any one of paragraphs 1 to 10, The above wearable charging device, further comprising a magnet (970) disposed in the extension portion and capable of magnetically coupling to the external wearable electronic device; Wearable charging device.

12. In any one of paragraphs 1 to 11, The above wearable charging device, Further comprising a magnetic field sensor (980) disposed in the charging body or the extension and capable of detecting a change in magnetic force. Wearable charging device.

13. In any one of paragraphs 1 to 12, The wearable charging device further comprises a first end (1014; 1191) and a second end (1015; 1192) that are mutually separable, In a state where the first end and the second end are interconnected, the receiving space forms a closed surface. Wearable charging device.

14. In any one of paragraphs 1 to 13, Among the wearable charging devices, a portion (E) located on the opposite side of the portion where the first end (1014; 1191) and the second end (1015; 1192) are interconnected based on the central axis of the receiving space is elastically deformable. Wearable charging device.

15. In any one of paragraphs 1 to 14, The charging coil includes a first terminal (1140-1) and a second terminal (1140-2) that are physically separable from each other, In a state where the first end (1191) and the second end (1192) are interconnected, the first terminal and the second terminal are electrically connected. Wearable charging device.

Images