Wearable electronic device capable of changing wearing state

Abstract

According to an embodiment of the present disclosure, a wearable electronic device comprises a link structure provided between a first casing and a second casing and configured to maintain a state in which the first casing is mechanically connected to the second casing when the second casing is spaced apart from the first casing in a state in which a contact area is exposed to an external space, wherein, when the wearable electronic device is worn on the body of a user in a state in which the second casing is coupled to the first casing, a soundproof hole is configured to be disposed to face the earhole of the ear of the user, and when the second casing is spaced apart from the first casing, the second casing and the first casing may be configured to contact the body of the user, while facing each other with a part of the body of the user interposed therebetween.

Description

Wearable electronic device capable of changing wearing state

[0001] The embodiments of the present disclosure relate to electronic devices, for example, wearable electronic devices capable of changing the wearing state.

[0002] With the development of electronic, information, and communication technologies, various functions are being integrated into a single electronic device. For example, an electronic device (e.g., a smartphone) includes communication functions as well as functions such as an audio player, an imaging device, or an electronic notebook, and even more diverse functions can be implemented on the smartphone through the additional installation of applications. In addition to executing installed applications or stored functions, the electronic device can receive various information in real time by connecting to a server or other electronic device via wired or wireless means.

[0003] As the use of electronic devices becomes commonplace, user demand for the portability and usability of such devices may increase. In response to these user demands, electronic devices that can be carried and used while worn on the body, similar to wristwatches or glasses (hereinafter referred to as "wearable electronic devices") have come to commercialization. Prior to wristwatch-type or glasses-type electronic devices, electronic devices providing audio functions, such as earphones or hands-free sets, have provided an environment that allows for more convenient use of other electronic devices, such as smartphones. With the widespread adoption of short-range wireless communication such as Bluetooth, electronic devices such as earphones or hands-free sets can transmit and receive audio signals via wireless communication with other electronic devices while worn on the user's body (e.g., ears).

[0004] The information described above may be provided as related art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art in relation to the present disclosure.

[0005] According to one embodiment of the present disclosure, a wearable electronic device may include: a first casing that accommodates a speaker unit and includes an acoustic hole for acoustic output; a second casing configured to accommodate at least one of a circuit board or a battery electrically connected to the speaker unit and to be coupled to the first casing with a portion of its surface (hereinafter referred to as a 'contact area') concealed; and a link structure provided between the first casing and the second casing and configured to maintain the first casing in a state of being mechanically connected to the second casing when the second casing is separated from the first casing with the contact area exposed to an external space. In one embodiment, when the wearable electronic device is worn on a user's body with the second casing coupled to the first casing, the acoustic hole may be configured to be positioned toward the inside of the user's ear canal. In one embodiment, when the second casing is spaced apart from the first casing, the second casing and the first casing may be configured to come into contact with the user's body while facing each other with a part of the user's body in between.

[0006] According to one embodiment of the present disclosure, a wearable electronic device may include: a first casing that accommodates a speaker unit and includes an acoustic hole for acoustic output and at least one vent hole; a second casing that accommodates a battery and a circuit board and is configured to be coupled to the first casing with a portion of its surface (hereinafter referred to as a 'contact area') concealed; and a link structure provided between the first casing and the second casing and configured to maintain the first casing in a state of being mechanically connected to the second casing when the second casing is separated from the first casing with the contact area exposed to the external space. In one embodiment, when the wearable electronic device is worn on a user's body with the second casing coupled to the first casing, the acoustic hole may be configured to be positioned toward the inside of the user's ear canal. In one embodiment, when the second casing is spaced apart from the first casing with a part of the user's body in between, the link structure may be configured to provide a force acting in a direction that brings the contact area closer to the first casing.

[0007] The aspects, configurations, and / or advantages described above regarding one embodiment of the present disclosure may become more apparent from the following detailed description with reference to the accompanying drawings.

[0008] FIG. 1 is a block diagram showing an electronic device in a network environment according to one embodiment of the present disclosure.

[0009] FIG. 2 is a drawing showing a first state of a wearable electronic device according to one embodiment of the present disclosure.

[0010] FIG. 3 is a drawing for explaining how the wearable electronic device of FIG. 2 according to one embodiment of the present disclosure is worn on a user's body.

[0011] FIG. 4 is a drawing showing a second state of a wearable electronic device according to one embodiment of the present disclosure.

[0012] FIG. 5 is a drawing for explaining how the wearable electronic device of FIG. 4 according to one embodiment of the present disclosure is worn on a user's body.

[0013] FIG. 6 is a drawing showing a first state of a wearable electronic device according to one embodiment of the present disclosure.

[0014] FIG. 7 is a drawing showing a second state of a wearable electronic device according to one embodiment of the present disclosure.

[0015] FIG. 8 is a drawing showing a first state of a wearable electronic device according to one embodiment of the present disclosure.

[0016] FIG. 9 is a drawing showing a second state of a wearable electronic device according to one embodiment of the present disclosure.

[0017] FIG. 10 is a drawing showing a wearable electronic device according to one embodiment of the present disclosure.

[0018] FIG. 11 is a first perspective view showing a first state of a wearable electronic device according to one embodiment of the present disclosure.

[0019] FIG. 12 is a second perspective view showing a first state of a wearable electronic device according to one embodiment of the present disclosure.

[0020] FIG. 13 is a perspective view showing a second state of a wearable electronic device according to one embodiment of the present disclosure.

[0021] FIG. 14 is a drawing showing a first casing of a wearable electronic device according to one embodiment of the present disclosure.

[0022] FIG. 15 is a drawing showing a second casing of a wearable electronic device according to one embodiment of the present disclosure.

[0023] Throughout the attached drawings, similar parts, configurations, and / or structures may be assigned similar reference numbers.

[0024] Since wearable electronic devices are worn on the user's body, they can be exposed to various environments. Devices that provide audio functions, such as wireless earphones, can be classified into open-type and in-ear earphones. For example, open-type earphones can provide a comfortable fit for the user, but their performance in suppressing external noise may be somewhat lower. In-ear earphones are more effective at suppressing external noise, but they may offer a less comfortable fit, and user fatigue may be greater over time compared to open-type earphones. On the one hand, in a good environment where external noise is suppressed, users may prefer open-type earphones for their comfortable fit, while in poor listening conditions, they may prefer in-ear earphones for their ability to suppress external noise more effectively. However, acquiring multiple earphones that account for both external noise suppression performance and comfort can increase the financial burden on the user.

[0025] One embodiment of the present disclosure is intended to at least resolve the aforementioned problems and / or disadvantages and at least provide the advantages described below, and can provide a wearable electronic device capable of adjusting performance regarding external noise suppression or comfort according to the user's requirements.

[0026] One embodiment of the present disclosure can provide a wearable electronic device that can be transformed into an open-type earphone form and an in-ear earphone form to suit the user's needs or usage environment.

[0027] One embodiment of the present disclosure can provide a wearable electronic device that allows for adjustment of the wearing form or wearing comfort, thereby enabling the user to reduce the economic burden.

[0028] The technical problems to be solved in this document are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art to which this disclosure belongs from the description below.

[0029] The following description relating to the attached drawings may provide an understanding of various exemplary embodiments of the present disclosure, including the claims and their corresponding contents. While the exemplary embodiments disclosed in the following description include various specific details to aid understanding, they are to be considered as one of various exemplary embodiments. Accordingly, those skilled in the art will understand that various changes and modifications to the various embodiments described herein may be made without departing from the scope and technical spirit of the disclosure. Additionally, for clarity and brevity, descriptions of well-known functions and configurations may be omitted.

[0030] The terms and words used in the following description and claims are not limited to their literal meanings but may be used to clearly and consistently describe an embodiment of the present disclosure. Accordingly, it will be apparent to a person skilled in the art that the following description of various embodiments of the disclosure is provided for illustrative purposes, not for the purpose of limiting the scope of the rights or the disclosure defined as equivalent thereto.

[0031] Unless the context clearly indicates otherwise, it should be understood that the singular forms of "a," "an," and "the" include a plural meaning. Thus, for example, "component surface" can be understood to include one or more of the component surfaces.

[0032] FIG. 1 is a block diagram of an electronic device (101) in a network environment (100) according to one embodiment of the present disclosure. Referring to FIG. 1, in the network environment (100), the electronic device (101) may communicate with an electronic device (102) through 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) through a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) through a server (108). According to one embodiment, the electronic device (101) may include a processor (120), memory (130), input module (150), sound output module (155), display module (160), audio module (170), sensor module (176), interface (177), connection terminal (178), haptic module (179), camera module (180), power management module (188), battery (189), communication module (190), subscriber identification module (196), or antenna module (197). In one embodiment, at least one of these components (e.g., connection terminal (178)) may be omitted from the electronic device (101), or one or more other components may be added. In one embodiment, some of these components (e.g., sensor module (176), camera module (180), or antenna module (197)) may be integrated into a single component (e.g., display module (160)).

[0033] The processor (120) can control at least one other component (e.g., hardware or software component) of the electronic device (101) connected to the processor (120) by executing software (e.g., program (140)), for example, and can perform various data processing or operations. According to one embodiment, as at least part of the data processing or operations, the processor (120) can store commands or data received from other components (e.g., sensor module (176) or communication module (190)) in volatile memory (132), process the commands or data stored in volatile memory (132), and store the resulting data in non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., central processing unit or application processor) or an auxiliary processor (123) that can operate independently or together with it (e.g., graphics processing unit, neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor). For example, if the electronic device (101) includes a main processor (121) and an 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 designated function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as part thereof.

[0034] The auxiliary processor (123) may control at least some of the functions or states associated with at least one component of the electronic device (101) (e.g., display module (160), sensor module (176), or communication module (190)) 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. According to one embodiment, the auxiliary processor (123) (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module (180) or communication module (190)). According to one embodiment, the auxiliary processor (123) (e.g., neural network processing unit) 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, on the electronic device (101) itself where the artificial intelligence model is executed, or 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.An artificial neural network may be 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 the hardware structure, the artificial intelligence model may include a software structure, either additionally or substantially.

[0035] The memory (130) can store various data used by at least one component of the electronic device (101) (e.g., processor (120) or sensor module (176)). The data may include, for example, input data or output data for software (e.g., program (140)) and related commands. The memory (130) may include volatile memory (132) or non-volatile memory (134).

[0036] The program (140) may be stored as software in memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0037] The input module (150) can receive commands or data to be used for a component of the electronic device (101) (e.g., processor (120)) from outside the electronic device (101) (e.g., user). The input module (150) may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0038] The sound output module (155) can output a sound signal to the outside of the electronic device (101). The sound output module (155) may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as multimedia playback or recording playback. The receiver may be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part thereof.

[0039] The display module (160) can visually provide information to an external (e.g., user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling said device. According to one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of the force generated by said touch.

[0040] The audio module (170) can convert sound into an electrical signal or, conversely, 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 headphones) that is directly or wirelessly connected to the electronic device (101).

[0041] The sensor module (176) can detect the operating state of the electronic device (101) (e.g., power or temperature) or the external environmental state (e.g., user state) and generate an electrical signal or data value corresponding to the detected state. According to one embodiment, the sensor module (176) may include, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0042] The interface (177) may support one or more specified protocols that can be used for the electronic device (101) to be connected directly or wirelessly to an external electronic device (e.g., electronic device (102)). According to 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.

[0043] The connection terminal (178) may include a connector through which the electronic device (101) can 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).

[0044] The haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module (179) may include, for example, a motor, a piezoelectric element, or an electric stimulation device.

[0045] The camera module (180) can capture still images and video. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0046] The power management module (188) can manage the power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented, for example, as at least part of a power management integrated circuit (PMIC).

[0047] The battery (189) can supply power to at least one component of the electronic device (101). According to one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0048] The communication module (190) can support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between an electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may include one or more communication processors that operate independently of the processor (120) (e.g., application processor) and 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., cellular communication module, short-range wireless communication module, or GNSS (global navigation satellite system) communication module) or a wired communication module (194) (e.g., LAN (local area network) communication module, or power line communication module). The corresponding communication module among these communication modules can communicate with an external electronic device through a first network (198) (e.g., a short-range communication network such as Bluetooth, WiFi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (199) (e.g., 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 may 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 identify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) using subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module (196).

[0049] The wireless communication module (192) can support 5G networks and next-generation communication technologies following 4G networks, for example, new radio access technology. NR access technology can support high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and connection of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low-latency communications (URLLC)). The wireless communication module (192) can support a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate, for example. The wireless communication module (192) can support various technologies for securing performance in the high-frequency band, such as beamforming, massive MIMO (multiple-input and multiple-output), full-dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large-scale antenna. The wireless communication module (192) can support various requirements specified by the electronic device (101), an external electronic device (e.g., electronic device (104)), or a network system (e.g., a second network (199)). According to one embodiment, the wireless communication module (192) can support a Peak data rate (e.g., 20 Gbps or more) for realizing eMBB, loss coverage (e.g., 164 dB or less) for realizing mMTC, or U-plane latency (e.g., downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) for realizing URLLC.

[0050] An antenna module (197) can transmit a signal or power to an external source (e.g., an external electronic device) or receive it from an external source. According to one embodiment, the antenna module may include an antenna comprising a radiator made 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 a first network (198) or a second network (199), may be selected from the plurality of antennas, for example, by a communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. According to one embodiment, in addition to the radiator, other components (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module (197).

[0051] According to one embodiment, the antenna module (197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent to a first surface (e.g., bottom surface) of the printed circuit board and capable of supporting a specified high frequency band (e.g., mmWave band), and a plurality of antennas (e.g., array antennas) disposed on or adjacent to a second surface (e.g., top surface or side surface) of the printed circuit board and capable of transmitting or receiving a signal of the specified high frequency band.

[0052] At least some of the above components can be connected to each other via a communication method between peripheral devices (e.g., bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)) and exchange signals (e.g., commands or data) with each other.

[0053] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) through a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or different type of device as the electronic device (101). According to one embodiment, all or part of the operations performed on the electronic device (101) may be performed on one or more of the external electronic devices (102, 104 or 108). For example, if the electronic device (101) needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device (101) may request one or more external electronic devices to perform at least part of the function or service instead of performing the function or service itself or additionally. One or more external electronic devices that receive the above request may execute at least part of the requested function or service, or additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may provide the result as is or additionally processed as at least part of the response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device (101) may provide ultra-low latency services using, for example, distributed computing or mobile edge computing. In one embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server using machine learning and / or neural networks. According to one embodiment, the external electronic device (104) or the server (108) may be included within the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0054] The electronic device according to the embodiment(s) of the present disclosure may be of various forms. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a consumer electronics device. The electronic device according to the embodiment of the present document is not limited to the devices described above.

[0055] The embodiments of the present disclosure and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said 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 said items unless the relevant context clearly indicates 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” each may 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 simply to distinguish said components from other said components and do not limit said components in any other aspect (e.g., importance or order). Where any (e.g., first) component is referred to as “coupled” or “connected” to another (e.g., second) component, with or without the terms “functionally” or “communicationly,” it may be understood that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0056] The term “module” as used in the embodiments of the present disclosure may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example. A module may be a component formed integrally, or a minimum unit of said component or a part thereof 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).

[0057] Embodiments of the present disclosure may be implemented as software (e.g., a program) comprising one or more instructions stored in a storage medium (e.g., internal memory or external memory) readable by a machine (e.g., an electronic device). For example, a processor (e.g., a processor) of the machine (e.g., an electronic device) may call at least one of the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The storage medium readable by the machine may be provided in the form of a non-transitory storage medium. Here, "non-transitory" simply means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and this term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily in the storage medium.

[0058] According to one embodiment, the method according to the embodiment(s) of the present disclosure may be provided by being included in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)) or an application store (e.g., Play Store). TM It can be distributed online (e.g., downloaded or uploaded) through ) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created on a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0059] According to one embodiment, each component (e.g., module or program) of the components described above may include a singular or multiple entities, and some of the multiple entities may be separated and placed in other components. According to one embodiment, one or more of the components or operations among the aforementioned components may be omitted, or one or more other components or operations may be added. Generally or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the multiple components in the same or similar manner as those performed by the corresponding component among the multiple components prior to integration. According to one embodiment, operations performed by the module, program, or other components 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.

[0060] FIG. 2 is a drawing showing a first state of a wearable electronic device (10) (e.g., the electronic device (101) of FIG. 1) according to one embodiment of the present disclosure. FIG. 3 is a drawing for explaining how the wearable electronic device (10) of FIG. 4 according to one embodiment of the present disclosure is worn on a user's body. FIG. 4 is a drawing showing a second state of a wearable electronic device (10) according to one embodiment of the present disclosure. FIG. 5 is a drawing for explaining how the wearable electronic device (10) of FIG. 4 according to one embodiment of the present disclosure is worn on a user's body.

[0061] The first state of FIG. 2 and / or FIG. 3 may be defined as the wearable electronic device (10) being in the form of an in-ear earphone, and the second state of FIG. 4 and / or FIG. 5 may refer to a state in which the wearable electronic device (10) is transformed into the form of an open earphone. For example, in the first state, at least a portion of the wearable electronic device (10) may be in close contact with a portion of the user's body (UB) or received inside the user's body, such as an ear canal. In one embodiment, in the second state, two different portions of the wearable electronic device (10) may be positioned facing each other with another portion of the user's body (UB) in between. When worn on the user's body in the second state, the wearable electronic device (10) may output sound in a direction toward the user's ear canal. In one embodiment, the environment in which sound output from the wearable electronic device (10) is provided to the user may differ when worn in the first state of FIG. 3 and when worn in the second state of FIG. 5. In one embodiment, the wearable electronic device (10) can suppress deviations in sound quality due to changes in the environment by adjusting the sound output according to whether it is worn in the first state and / or whether it is worn in the second state. The configuration for checking whether it is worn in the first state and / or whether it is worn in the second state will be examined again with reference to FIG. 11 to 13.

[0062] Referring to FIGS. 2 through 5, the wearable electronic device (10) may include a first casing (11a), a second casing (11b), and / or a link structure (13). In one embodiment, the second casing (11b) may be detachably provided to the first casing (11a). In a state where the first casing (11a) is coupled to the second casing (11b), for example, in the first state of FIG. 2, the combination of the first casing (11a) and the second casing (11b) may be referred to as a 'casing' or a 'housing' (e.g., the housing (201) of FIG. 11). Even if the second casing (11b) is separated or spaced apart from the first casing (11a), for example, in the second state of FIG. 4, the link structure (13) can maintain the first casing (11a) and the second casing (11b) in a mechanically connected state. For example, the link structure (13) can connect the first casing (11a) and the second casing (11b) in a bridge form, thereby providing a gap of a specified size between the first casing (11a) and the second casing (11b) in the second state while maintaining a mechanical connection.

[0063] According to one embodiment, it should be noted that in describing the embodiment(s) of the present disclosure, even when referring to a state in which the first casing (11a) and the second casing (11b) are separated or spaced apart, the link structure (13) maintains a mechanical connection state between the first casing (11a) and the second casing (11b). In one embodiment, the link structure (13) may provide a force acting in a direction that brings the first casing (11a) and the second casing (11b) closer together when the wearable electronic device (10) is in a second state. The force provided by the link structure (13) may be, for example, an elastic force. In one embodiment, the first state of the wearable electronic device (10) may be described as an in-ear mode, and the second state may be described as an open mode. In open mode, a part of the user's body is positioned between the first casing (11a) and the second casing (11b), so that the wearable electronic device (10) can be worn on the user's body.

[0064] According to one embodiment, the first casing (11a) may accommodate a speaker unit (19a) and may include an acoustic hole (15) that outputs sound pressure or sound generated from the speaker unit (19a). For example, the first casing (11a) may be understood as a speaker casing or a speaker part. The acoustic hole (15) may refer to, for example, a hole that radiates sound generated from the speaker unit (19a) into an external space. In one embodiment, when the wearable electronic device (10) is in a first state and is worn on the user's body, the acoustic hole (19a) may be configured to be positioned so as to be directed toward the inside of the user's ear canal. For example, when the wearable electronic device (10) is worn on the user's body in the form of an in-ear earphone, the first casing (11a) is positioned to contact the user's body so as to align the soundproofing hole (15) toward the inside of the user's ear canal.

[0065] According to one embodiment, the first casing (11a) may include at least one vent hole (e.g., port hole (219a) of FIG. 14). In one embodiment, the at least one vent hole may allow air inside the first casing (11a) to be discharged to the outside or outside air to be drawn into the first casing (11a) depending on the change in internal pressure that occurs when the speaker unit (e.g., speaker unit (19a) of FIG. 2) is in operation. In one embodiment, the at least one vent hole (e.g., port hole (219a) of FIG. 14) may output a second sound that is in inverse phase with respect to the first sound when the first sound is output while the soundproofing hole (15) is exposed to the outside space. For example, a second sound output from the port hole (219a)(s) can suppress the exposure (or perception) of the sound output through the soundproofing hole (15) to a person in the vicinity who is not the actual user of the wearable electronic device (10). In one embodiment, the wearable electronic device (10) can amplify the sound in a specified band by outputting a third sound that is in phase with the first sound in a specified band.

[0066] According to one embodiment, as will be seen with reference to FIGS. 11 through 15, when the wearable electronic device is in in-ear mode (e.g., the second state of FIG. 4), the port holes (219a)(s) may be substantially concealed or closed by the second casing (11b). In one embodiment, a through-hole structure connecting the internal space of the first casing (11a) (or the second casing (11b)) to the external space, such as a soundproof hole (15) from which sound is output, or an acoustic input hole not shown, may be understood to correspond to at least one vent hole.

[0067] According to one embodiment, the second casing (11b) may accommodate a circuit board (19b) and / or a battery (19c). For example, the second casing (11b) may be understood as a circuit casing or a circuit part. In one embodiment, the first casing (11a) and the second casing (11b) may be mechanically connected through a link structure (13) and / or electrically connected internal components through electrical wiring arranged through the link structure (13). Here, "internal components" may be understood to include a speaker unit (19a), a circuit board (19b), and / or a battery (19c). For example, the circuit board (19b) and / or the battery (19c) may be electrically connected to the speaker unit (19a).

[0068] According to one embodiment, although not illustrated, when the wearable electronic device (10) performs the function of converting external sound into an electrical signal, the second casing (11b) may accommodate at least one microphone. In one embodiment, when at least one microphone is placed in the second casing (11b), the wearable electronic device (10) may include at least one acoustic input hole (e.g., acoustic holes (211a, 211b)(s)) provided in the second casing (11b). In one embodiment, when a circuit board (19b) and / or a battery (19c) is accommodated in the second casing (11b) and a speaker unit (19a) is placed in the first casing (11a), the link structure (13) may provide an environment in which electrical wiring extending from the circuit board (19b) and / or battery (19c) to the speaker unit (19a) can be arranged.

[0069] According to one embodiment, a link structure (13) may be provided between a first casing (11a) and a second casing (11b). For example, the link structure (13) may mechanically connect the first casing (11a) and the second casing (11b) and allow movement or displacement of the first casing (11a) and the second casing (11b) relative to each other, thereby guiding the deformation of the wearable electronic device (10) between a first state and a second state. Here, 'movement or displacement of the first casing (11a) and the second casing (11b) relative to each other' may refer to the first casing (11a) and the second casing (11b) moving relative to each other between a state in which a portion of the surface of the second casing (11a) (e.g., 'contact area' or the second area (SA2) of FIG. 15) is concealed by the first casing (11a) (or substantially in contact with the first casing (11a)) and a state in which the contact area is exposed to the outside space.

[0070] According to one embodiment, when the wearable electronic device (10) is in a first state, the contact area may be substantially concealed by the first casing (11a). In one embodiment, when the wearable electronic device (10) is in a second state, the contact area is exposed to the external space, and a gap of a specified size may be formed between the first casing (11a) and the second casing (11b). In one embodiment, when the wearable electronic device (10) is in a second state, a part of the user's body (e.g., an earlobe) may be positioned between the first casing (11a) and the second casing (11b). For example, the first casing (11a) may be positioned facing one side of the earlobe, and the second casing (11b) may be positioned on the other side of the earlobe. In other words, the first casing (11a) can be positioned to face the second casing (11b) with a part of the user's body in between.

[0071] According to one embodiment, when the wearable electronic device (10) is in a second state, the link structure (13) may provide a force acting in a direction that brings the second casing (11b) (e.g., contact area or second area (SA2) of FIG. 15) closer to the first casing (11a). In one embodiment, the wearable electronic device (10) can stably maintain a state of being worn on the user's body by the force provided by the link structure (13). For example, when the wearable electronic device (10) is worn on the user's body in the second state, the second casing (11b) (e.g., contact area) and the first casing (11a) may be brought closer to the user's body by the force provided by the link structure (13). In one embodiment, when the wearable electronic device (10) is worn on a user's body in a second state, at least some of the circuit board (19b) and / or battery (19c) may be placed in the first casing (11a), taking into account the weight distribution of the first casing (11a) and the second casing (11b) and / or the resulting user fatigue. For example, the parts placed in the first casing (11a) and / or the second casing (11b) may be implemented differently from the illustrated embodiment, taking into account the wearing comfort of the wearable electronic device (10) in the second state.

[0072] According to one embodiment, in the wearing state of FIG. 5, the port holes (219a)(s) may be positioned facing the user's body. For example, on the first casing (11a), the port holes (219a)(s) may be understood to be positioned in a different area from the soundproofing hole (15) or positioned to be oriented in a different direction. In one embodiment, even though the port holes (219a)(s) are positioned facing the user's body, sound output through the port holes (219a)(s) may be radiated into the external space via the curves of the user's body. In one embodiment, in the wearing state of FIG. 5, the port holes (219a)(s) may function as at least one vent hole that harmonizes the internal pressure of the first casing (11a) with the external pressure by being connected to the external space via the curves of the user's body.

[0073] According to one embodiment, the link structure (13) includes a plurality of sliders (13a, 13b, 13c), and by the sliders (13a, 13b, 13c) sliding in a designated direction relative to each other, the first casing (11a) and the second casing (11b) can be moved or displaced relative to each other. In the illustrated embodiment, the sliders (13a, 13b, 13c) may have a tube structure so that any one of the sliders (13a, 13b, 13c) is received inside the other or a part of the other. For example, the link structure (13) may be configured to contract or expand by being implemented in the form of a telescopic tube structure. Here, "the link structure (13) contracts" can describe an action that brings the first casing (11a) and the second casing (11b) closer together, and "the link structure (13) expands" can describe an action that separates or separates the first casing (11a) and the second casing (11b). In one embodiment, when the sliders (13a, 13b, 13c) have a tube structure, the internal space of the first casing (11a) can be connected to the internal space of the second casing (11b) through the link structure (13). For example, the link structure (13) can connect the internal space of the first casing (11a) to the internal space of the second casing (11b). When the internal spaces are connected to each other through the link structure (13), the internal space of the second casing (11b) can be utilized as the back volume of the speaker unit (19a).

[0074] According to one embodiment, a link structure (13) implemented in the form of a barrel structure may include a first slider (13a) provided in a first casing (11a), a second slider (13b) provided in a second casing (11b), and / or a third slider (13c). In one embodiment, a portion of the third slider (13c) may be configured to be received in the first slider (13a) or withdrawn from the first slider (13a). In one embodiment, another portion of the third slider (13c) may be configured to be received in the second slider (13b) or withdrawn from the second slider (13b). In one embodiment, the third slider (13c) may be understood as a structure that guides the movement of the first slider (13a) and / or the second slider (13b).

[0075] According to one embodiment, when the third slider (13c) is substantially accommodated in the first slider (13a) and / or the second slider (13b), the first casing (11a) and the second casing (11b) may be coupled to each other. For example, when the wearable electronic device (10) is in a first state, the third slider (13c) may be understood to be accommodated to the maximum extent in the first slider (13a) and / or the second slider (13b) to the extent permissible. In one embodiment, when the third slider (13c) is at least partially withdrawn from the first slider (13a) and / or the second slider (13b), the first casing (11a) may be separated from the second casing (11b). For example, when the wearable electronic device (10) is in a second state, the third slider (13c) may be understood to have been withdrawn at least partially from the first slider (13a) and / or the second slider (13b) to an acceptable range.

[0076] According to one embodiment, although not illustrated, the third slider (13c) may be provided with a rail extending in a designated direction. For example, the link structure (13) may be implemented by a slide rail structure different from the tube structure. Although not illustrated, the link structure (13) in the form of a rail structure may further include at least one roller or at least one ball to facilitate the movement of the third slider (13c) relative to the first slider (13a) and / or the second slider (13b). In one embodiment, when the link structure (13) provides a force acting in a direction that brings the first casing (11a) and the second casing (11b) closer together, the third slider (13c) may be implemented with a structure or material that provides elastic force.

[0077] FIG. 6 is a drawing showing a first state of a wearable electronic device (20) according to one embodiment of the present disclosure (e.g., the electronic device (101) of FIG. 1 or the wearable electronic device (10) of FIG. 4). FIG. 7 is a drawing showing a second state of a wearable electronic device (20) according to one embodiment of the present disclosure.

[0078] The wearable electronic device (20) of FIGS. 6 and FIGS. 7 may differ from the wearable electronic device (10) of FIGS. 2 or FIGS. 4 in its link structure (23). In describing the wearable electronic device (20) of FIGS. 6 and FIGS. 7 and / or the following embodiments, the same reference numerals may be assigned or omitted for configurations that can be easily understood through prior embodiments, and detailed descriptions thereof may also be omitted. Even if not directly mentioned in the drawings or detailed descriptions, configuration(s) included in different embodiments of the present disclosure may be selectively combined to implement additional embodiments.

[0079] Referring to FIGS. 6 and 7, a wearable electronic device (20) and / or its link structure (23) according to one embodiment may include a first slider (23a) extending from a first casing (11a) and a second slider (23b) extending from a second casing (11b). For example, the link structure (23) may include sliders (23a, 23b) that are slidably coupled to each other. In one embodiment, the first slider (23a) and the second slider (23b) may be coupled to face each other while aligned parallel along the longitudinal direction. For example, the first slider (23a) and the second slider (23b) may be coupled to face each other and move relative to each other along the longitudinal direction. In one embodiment, as the first slider (23a) and the second slider (23b) move relative to each other, the first casing (11a) and the second casing (11b) may be moved or displaced between a position where they are joined facing each other (e.g., the first state in FIG. 6) and a position where a gap of a specified size is formed (e.g., the second state in FIG. 7). In one embodiment, the link structure (23) of FIG. 6 and FIG. 7 may provide an environment where electrical wiring can be placed, and / or connect the internal space of the first casing (11a) to the internal space of the second casing (11b).

[0080] According to one embodiment, the first slider (23a) and the second slider (23b) may be combined in the form of a tube structure. For example, the first slider (23a) and / or the second slider (23b) may be implemented in the form of a tube. In the illustrated embodiment, it may be understood that a tube structure (e.g., link structure (23)) in which the first slider (23a) is received in the second slider (23b) is illustrated. For example, as the first slider (23a) and the second slider (23b) move relative to each other, the first slider (23a) may be received in the second slider (23b) or withdrawn from the second slider (23b). However, embodiments of the present disclosure are not limited thereto, and as the first slider (23a) and the second slider (23b) move relative to each other, the second slider (23b) may be received in the first slider (23a) or withdrawn from the first slider (23b).

[0081] According to one embodiment, when the wearable electronic device (20) is in a first state, the first slider (23a) may be understood to be accommodated to the maximum extent in the second slider (23b) within an acceptable range. In one embodiment, when the first slider (23a) is at least partially withdrawn from the second slider (23b), the first casing (11a) may be separated from the second casing (11b). For example, when the wearable electronic device (20) is in a second state, the first slider (23a) may be understood to be at least partially withdrawn from the second slider (23b) within an acceptable range. In one embodiment, when the first slider (23a) is implemented with a structure or material that provides elastic force, the link structure (23) may provide a force acting in a direction that brings the first casing (11a) and the second casing (11b) closer together using the first slider (23a).

[0082] FIG. 8 is a drawing showing a first state of a wearable electronic device (30) according to one embodiment of the present disclosure (e.g., the electronic device (101) of FIG. 1 or the wearable electronic device (10) of FIG. 4). FIG. 9 is a drawing showing a second state of a wearable electronic device (30) according to one embodiment of the present disclosure.

[0083] Referring to FIGS. 8 and 9, a wearable electronic device (30) and / or its link structure (33) according to one embodiment may include a hinge connecting a first casing (11a) and a second casing (11b). The hinge implementing the link structure (33) may allow, for example, movement or displacement of the first casing (11a) and the second casing (11b) relative to each other. In one embodiment, the link structure (33) implemented with the hinge may maintain a mechanically connected state even when the second casing (11b) is separated from the first casing (11a), and / or may provide a force acting in a direction that brings the second casing (11b) and the first casing (11a) closer together. For example, when the wearable electronic device (30) is worn on the user's body in the second state of FIG. 9, the force provided by the link structure (33) can stably maintain the wearing state of the wearable electronic device (30).

[0084] According to one embodiment, the wearable electronic device (30) may include at least one magnet (37a, 37b) and / or at least one hook (37c). In one embodiment, the at least one magnet (37a, 37b) and / or at least one hook (37c) may maintain a first state of the wearable electronic device (30) or a state in which the first casing (11a) and the second casing (11b) are in substantial contact. For example, the wearable electronic device (30) may maintain the first state by the at least one magnet (37a, 37b) and / or at least one hook (37c) unless intended by the user. In one embodiment, when at least one magnet (37a, 37b) is placed, at least one hook (37c) may be omitted. In one embodiment, when at least one hook (37c) is placed, at least one magnet (37a, 37b) may be omitted. In one embodiment, at least one magnet (37a, 37b) and at least one hook (37c) may be combined and placed in a wearable electronic device (30).

[0085] According to one embodiment, at least one magnet (37a, 37b) may include a first magnet (37a) placed in a first casing (11a) and a second magnet (37b) placed in a second casing (11b). In one embodiment, the first magnet (37a) and the second magnet (37b) may be configured to generate an attractive force when aligned within a specified distance. For example, the first magnet (37a) and the second magnet (37b) may be configured to generate an attractive force when the first casing (11a) and the second casing (11b) are substantially in contact. In one embodiment, the first casing (11a) and the second casing (11b) may remain in a contacted or coupled state relative to each other in a specified direction or at a specified location due to the attractive force of the first magnet (37a) and the second magnet (37b).

[0086] According to one embodiment, at least one hook (37c) may be disposed in either the first casing (11a) or the second casing (11b). In one embodiment, when the hook (37c)(s) are disposed in either the first casing (11a) or the second casing (11b), a hook hole(s) not illustrated may be formed in the other of the first casing (11a) and the second casing (11b). For example, the second casing (11b) may be substantially fixed on the first casing (11a) by the hook (37c)(s) being fastened to the other of the first casing (11a) and the second casing (11b). Although not illustrated, similar to the arrangement of magnets (37a, 37b), at least one hook (37c) may include a first hook placed in the first casing (11a) and a second hook placed in the second casing (11b). For example, the second casing (11b) and the first casing (11a) may be connected or fixed to each other by the hooks (37c) placed in different casings (11a, 11b) being connected to each other.

[0087] FIG. 10 is a drawing showing a wearable electronic device (40) according to one embodiment of the present disclosure (e.g., the electronic device (101) of FIG. 1 or the wearable electronic device (10) of FIG. 4).

[0088] Referring to FIG. 10, the link structure (43) may have one end connected to the first casing (11a) and the other end connected to the second casing (11b). In one embodiment, the link structure (43) is substantially the same as the hinge of FIG. 8, but there may be differences in the connection structure with the casings (11a, 11b). In one embodiment, at least one of the first casing (11a) or the second casing (11b) may be configured to rotate under the guidance of the link structure (43). For example, at least one of the first casing (11a) and / or the second casing (11b) may rotate relative to the link structure (43) within a specified angle range. In the illustrated embodiment, it may be understood that the first casing is rotatably coupled to one end of the link structure (43), and the second casing (11b) is fixed to the other end of the link structure (43). For example, the first casing (11b) can rotate between a position coupled to the second casing (11b) (e.g., the first state in FIG. 2) and a specified angle position (e.g., the second state in FIG. 4).

[0089] According to one embodiment, FIG. 10 may illustrate a state in which the first casing (11a) is coupled to the second casing (11b), for example, a state in which the wearable electronic device (40) is in an in-ear mode. In one embodiment, when the wearable electronic device (40) is in an in-ear mode, the user may wear the wearable electronic device (40) by aligning the soundproofing hole (15) so as to be directed toward the inside of the user's ear canal. In one embodiment, in FIG. 10, reference numeral '41a' may illustrate a state in which the first casing (11a) is rotated to a designated angle position (e.g., the second state of FIG. 4). Here, 'a state in which the first casing (11a) is rotated to a designated angle position' may refer to a state in which the wearable electronic device (40) is in an open mode. In one embodiment, when the wearable electronic device (40) is in an open mode, the user can wear the wearable electronic device (40) with the soundproofing hole (15) aligned adjacent to the user's ear canal and a part of the body (e.g., earlobe or outer ear) placed between the first casing (11a) and the second casing (11b).

[0090] In the detailed description with reference to FIGS. 11 through 15, detailed descriptions regarding link structures (e.g., link structures (13, 23, 33, 43) of FIGS. 4, FIG. 7, FIG. 9, and / or FIG. 10), magnets (e.g., magnets (37a, 37b) of FIG. 8 or FIG. 9), and / or hooks (e.g., hook (37c) of FIG. 9)(s) may be omitted. In the embodiments disclosed through FIGS. 11 through 15, the link structures, magnets, and / or hook(s) may be provided by arbitrarily selecting or combining the configurations of the above-described embodiments.

[0091] FIG. 11 is a first perspective view showing a first state of a wearable electronic device (200) according to one embodiment of the present disclosure (e.g., the electronic device (101) of FIG. 1 or the wearable electronic device (10) of FIG. 4). FIG. 12 is a second perspective view showing a first state of a wearable electronic device (200) according to one embodiment of the present disclosure.

[0092] Referring to FIGS. 11 and FIGS. 12, the wearable electronic device (200) may include a housing (201) and various structures and / or electrical components (e.g., speaker unit (19a), circuit board (19b), and / or battery (19c))(s) accommodated in the internal space of the housing (201). The housing (201) may refer to a combination of, for example, a first casing (201a) (e.g., first casing (11a) in FIG. 2) and a second casing (201b) (e.g., second casing (11b) in FIG. 2). In one embodiment, by combining the first casing (201a) and the second casing (201b) so as to face each other, the wearable electronic device (200) can operate in an in-ear mode, and when the first casing (201a) and the second casing (201b) are spaced apart from each other, the wearable electronic device (200) can operate in an open mode. Depending on whether the first casing (201a) and the second casing (201b) are combined, and / or depending on the wearing state or external noise environment, the wearable electronic device (200) can provide optimal sound to the user by controlling the speaker unit (19a) differently. A more detailed description regarding the control of the speaker unit (19a) according to the wearing state or external noise environment is omitted.

[0093] According to one embodiment, the first casing (201a) and / or the second casing (201b) may be formed from ceramic, polymer, metal, or a combination of at least two of the materials and may include at least one coating layer formed on an outer surface or an inner surface. Since the wearable electronic device (200) is used while being worn on a user's body, the materials of the first casing (201a) and / or the second casing (201b) may be appropriately selected or combined in consideration of the weight or wearing comfort of the wearable electronic device (200).

[0094] According to one embodiment, the wearable electronic device (200) may include a plurality of acoustic holes (211a, 211b, 211c) and / or a plurality of electrodes (241a). In one embodiment, when the wearable electronic device (200) is worn on a user's body (e.g., user body (UB) in FIG. 2), the first casing (201a) may be positioned substantially facing the user's body so as to make contact with the user's body on the outer surface (CS), and the second casing (201b) may be positioned facing the external space. For example, when the wearable electronic device (200) is in in-ear mode, the first casing (201a) may be positioned substantially in contact with the user's body, and the second casing (201b) may be positioned substantially facing the external space. In one embodiment, depending on the shape of the user's body (e.g., user body (UB) in FIG. 2) or the state of wearing the wearable electronic device (200), some of the outer surfaces (ES) of the second casing (201b) may be exposed to the outside space and other parts may be concealed by the user's body.

[0095] According to one embodiment, among a plurality of acoustic holes (211a, 211b, 211c), the first acoustic hole (211a) and the second acoustic hole (211b) may be formed to penetrate the second casing (201b) at different locations. For example, the wearable electronic device (200) may receive external sound (e.g., the user's voice or sound from the surrounding environment) through at least two different paths. In one embodiment, the wearable electronic device (200) is worn on the user's body in an in-ear mode, and even if the outer surface (ES) of the second casing (201b) is partially concealed by the user's body, the first acoustic hole (211a) and the second acoustic hole (211b) may be aligned so as to be exposed to the external space. In one embodiment, the second acoustic hole (211b) extends from the outer surface (ES) of the second casing (201b) to the inner side of the second casing (201b), thereby providing an environment in which the wearable electronic device (200) can receive external sound.

[0096] According to one embodiment, among a plurality of acoustic holes (211a, 211b, 211c), a third acoustic hole (211c) is formed to penetrate the first casing (201a), and sound output from a speaker unit (e.g., speaker unit (19a) of FIG. 2) embedded in the housing (201) can be radiated to the outside through the third acoustic hole (211c). For example, the third acoustic hole (211c) can be understood as the soundproofing hole (15) of FIG. 2. In one embodiment, the third acoustic hole (211c) can function as a path for receiving sound from an external space while radiating sound output from the speaker unit (253). For example, an in-ear microphone not illustrated may be embedded in the first casing (201a), and the third acoustic hole (211c) can function as a path for the in-ear microphone to receive sound. In one embodiment, the wearable electronic device (200) may process an acoustic signal based on acoustics received through the first acoustic hole (211a), the second acoustic hole (211b) and / or the third acoustic hole (211c), respectively. In the various embodiments disclosed herein, "the wearable electronic device (200) processes an acoustic signal" may be understood to include acoustic signal processing for performing at least one of acoustic beamforming, active noise cancelling (ANC), echo canceling (EC), noise suppression (NS), and / or feedforward (FF).

[0097] According to one embodiment, the wearable electronic device (200) may further include a first dummy hole (211d) formed to penetrate the first casing (201a) at a location different from the third acoustic hole (211c). In one embodiment, the first dummy hole (211d) may function as a path for receiving external sound and / or as a path that, when the wearable electronic device (200) is worn, is combined with a vent hole (215) to regulate the pressure inside the ear canal to correspond to the pressure of the external environment. In one embodiment, when the first dummy hole (211d) functions as a path for regulating the pressure inside the ear canal, the wearable electronic device (200) may further include the port hole (219a)(s) of FIG. 14 and / or the second dummy hole (219b) of FIG. 15.

[0098] According to one embodiment, a plurality of electrodes (241a) may be exposed to the outer surface of the first casing (201a), for example, as electrodes for receiving charging power. Since the outer surface (CS) of the first casing (201a) is configured to substantially contact the user's body, the plurality of electrodes (241a) may be visually concealed when the wearable electronic device (200) is worn on the user's body. In one embodiment, the wearable electronic device (200) may receive charging power in an inductive or resonant manner. For example, the wearable electronic device (200) may receive charging power wirelessly even without including the plurality of electrodes (241a) exposed to the outer surface of the first casing (201a). According to one embodiment, it will be readily understood by those skilled in the art that at least one of the shape and material of each of the plurality of electrodes (241a) may be different.

[0099] According to one embodiment, the wearable electronic device (200) may further include an optical window (219) and / or a vent hole (215). The optical window (219) may be exposed, for example, to the outer surface of the first casing (201a), and the wearable electronic device (200) may detect whether the wearable electronic device (200) is worn on the user's body by including a sensor (e.g., a proximity sensor) positioned correspondingly to the optical window (219). The vent hole (215) may be formed to penetrate the second casing (201b) and may be exposed to the outside space while the user is wearing the wearable electronic device (200).

[0100] According to one embodiment, when electrical components inside the housing (201) generate heat, the vent hole (215) can induce or release the heat inside the housing (201) to the outside. In another embodiment, when a speaker unit (e.g., speaker unit (19a) of FIG. 2) is embedded in the housing (201), the vent hole (215) can provide an environment in which the speaker unit (e.g., diaphragm) can operate stably. In one embodiment, although not given a reference number, the wearable electronic device (200) includes a screen member placed over the vent hole (215) so as to allow heat or gas to flow through the vent hole (215) while blocking external foreign matter, such as dust, from entering the interior of the housing (201).

[0101] According to one embodiment, the wearable electronic device (200) may further include an ear tip (217) provided detachably to the first casing (201a) at least a portion of the circumference of a soundproof hole (e.g., a third acoustic hole (211c)). The ear tip (217) may be placed on the outer surface (CS) of the first casing (201a) by means of, for example, a press fit, magnetic force, screw connection, adhesive and / or adsorption. In one embodiment, when the wearable electronic device (200) is worn on a user's body with the second casing (201b) coupled to the first casing (201a), for example, when the wearable electronic device (200) is used in an in-ear mode, at least a portion of the ear tip (217) may be configured to come into direct contact with the user's body. In one embodiment, when the wearable electronic device (200) in in-ear mode is worn on the user's body, the ear tip (217) contacts the inner wall of the ear canal and can provide the user with sound output through the third acoustic resonance (211c). In one embodiment, when the user wishes to use the wearable electronic device (200) in open mode, the user can detach the ear tip (217) from the first casing (201a).

[0102] FIG. 13 is a perspective view showing a second state of a wearable electronic device (200) according to one embodiment of the present disclosure (e.g., the electronic device (101) of FIG. 1 or the wearable electronic device (10) of FIG. 4). FIG. 14 is a drawing showing a first casing (201a) of a wearable electronic device (200) according to one embodiment of the present disclosure (e.g., the first casing (11a) of FIG. 2 or FIG. 4). FIG. 15 is a drawing showing a second casing (201b) of a wearable electronic device (200) according to one embodiment of the present disclosure (e.g., the second casing (11b) of FIG. 2 or FIG. 4).

[0103] Note that FIG. 13 is intended to illustrate a second state (e.g., the state illustrated in FIG. 4) of a wearable electronic device (200), and the gap between the first casing (201a) and the second casing (201b) is exaggerated to illustrate the contact area (e.g., the first area (SA1) and / or the second area (SA2) of FIG. 14). As described in the preceding embodiment, when the wearable electronic device (200) is in a second state (e.g., open mode), the first casing (201a) and the second casing (201b) are separated by a gap of a specified size, but can be mechanically connected by a link structure (203; 203a, 203b). In one embodiment, reference numerals '203a' and '203b' may illustrate different parts of a hinge that implements either one of the sliders (13a, 13b, 23a, 23b) of FIG. 4 or FIG. 7, or the link structure (33, 43) of FIG. 8 through 10. In one embodiment, when the wearable electronic device (200) is in a second state, the link structure (203) may provide a force acting in a direction that brings the first casing (201a) and the second casing (201b) closer together. The link structure (203) may include, for example, a first link (203a) and a second link (203b), and as seen with reference to FIG. 2 through 10, the first link (203a) and the second link (203b) may implement a barrel structure, a rail structure and / or a hinge.

[0104] Referring further to FIGS. 13 through 15, the wearable electronic device (200) may be arranged such that a first region (SA1) of the first casing (201a) and a second region (SA2) of the second casing (201b) are substantially facing each other. In one embodiment, the first region (SA1) may be part of the surface of the first casing (201a), and the second region (SA2) may be understood as part of the surface of the second casing (201b). For example, when the wearable electronic device (200) is in in-ear mode, the first casing (201a) and the second casing (201b) may be joined with the first region (SA1) and the second region (SA2) in a substantially contacted (or facing) state. In one embodiment, when the wearable electronic device (200) is in open mode, a gap of a specified size may be formed between the first region (SA1) and the second region (SA2). For example, when the wearable electronic device (200) is in open mode, a part of the user's body may be located between the first region (SA1) and the second region (SA2). In one embodiment, when the wearable electronic device (200) is in open mode and the link structure (203) provides an elastic force acting in a direction that brings the first casing (201a) and the second casing (201b) closer together, the first region (SA1) and / or the second region (SA2) may be in close contact with the user's body. For example, the elastic force provided by the link structure (203) can stably maintain the state in which the wearable electronic device (200) is worn on the user's body in open mode.

[0105] According to one embodiment, the wearable electronic device (200) may include at least one port hole (219a) provided in the first casing (201a) and / or at least one second dummy hole (219b) provided in the second casing (201b). In one embodiment, at least one port hole (219b) may be placed in an area of ​​the surface of the first casing (201a) that contacts the second casing (201b) (e.g., a first area (SA1)), and / or at least one second dummy hole (219b) may be placed in an area of ​​the surface of the second casing (201b) that contacts the first casing (201a) (e.g., a second area (SA2)). For example, at least one port hole (219a) and / or at least one second dummy hole (291b) may be concealed or exposed to the outside space depending on the in-ear mode / open mode of the wearable electronic device (200).

[0106] According to one embodiment, when the wearable electronic device (200) is in in-ear mode, for example, when the first region (SA1) and the second region (SA2) are substantially in contact, at least one port hole (219a) and / or at least one second dummy hole (219b) may be aligned to face each other. When the wearable electronic device (200) is in in-ear mode, the first region (SA1) and the second region (SA2) may be substantially concealed by the first casing (201a) and the second casing (201b) being joined to face each other. For example, at least one port hole (219a) may be connected to the internal space of the second casing (201b) through at least one second dummy hole (219b). In one embodiment, when the first casing (201a) and the second casing (201b) are joined facing each other, the internal space of the first casing (201a) can be connected to the internal space of the second casing (201b) through at least one port hole (219a) and at least one second dummy hole (219b). In one embodiment, when the internal space of the first casing (201a) is connected through at least one port hole (219a) and at least one second dummy hole (219b), the internal space of the second casing (201b) can function as a resonance space to improve sound quality. In one embodiment, the phrase “at least one port hole (219a) and / or at least one second dummy hole (219b) are aligned facing each other” may refer to the internal space of the first casing (201a) being connected to the internal space of the second casing (201b) through at least one port hole (219a) and / or at least one second dummy hole (219b) when the wearable electronic device (200) is in in-ear mode. In one embodiment, when the internal space of the first casing (201a) is connected to the internal space of the second casing (201b), the internal space of the second casing (201b) may function as part of the rear volume of a speaker unit (e.g., speaker unit (19a) of FIG. 2).

[0107] According to one embodiment, when the wearable electronic device (200) is worn on a user's body in an in-ear mode, the first dummy hole (211d) of FIG. 11, the internal space of the first casing (201a), at least one port hole (219a), at least one second dummy hole (219b), the internal space of the second casing (201b) and / or the vent hole (215) may provide an air passage or a path for pressure regulation. For example, even when the wearable electronic device (200) is worn on a user's body in an in-ear mode, at least one port hole (219a) and / or at least one second dummy hole (219b) are provided so that the internal pressure may be regulated to be similar to the atmospheric pressure of the external environment. Thus, even when the wearable electronic device (200) is worn in an in-ear mode, the user may be provided with a comfortable fit and may reduce fatigue caused by wearing it for a long time. For example, the hole designated as ‘port hole’ but indicated as ‘219a’ can function as a vent hole for regulating the internal pressure of the wearable electronic device (200).

[0108] According to one embodiment, when the wearable electronic device (200) is in open mode, the second casing (201b) may be spaced apart from the first casing (201a) with the first region (SA1) and / or the second region (SA2) exposed to the outside space. It has been previously mentioned that even when the second casing (201b) is spaced apart from the first casing (201a), the second casing (201b) and the first casing (201a) remain mechanically connected by a link structure (203). In one embodiment, when the wearable electronic device (200) in open mode is worn on a user's body, the third acoustic hole (211c) of the first casing (201a) (e.g., the soundproof hole (15) in FIG. 2)) may be aligned to face the user's ear canal. In one embodiment, even if the wearable electronic device (200) is in an open mode and is worn on the user's body, at least one port hole (219a) can be connected to an external space through the curvature of the user's body. For example, when a first sound is output from the soundproof hole (15) of FIG. 2 or the third acoustic hole (211c) of FIG. 11, at least one port hole (219a) can output a second sound that is in inverse phase with respect to the first sound, thereby suppressing the exposure of the currently output sound to people around the user who are not the user.

[0109] According to one embodiment, as illustrated in FIG. 11, FIG. 13 and / or FIG. 14, the wearable electronic device (200) may include at least one wear detection sensor. In the illustrated embodiment, the wearable electronic device (200) may include a first wear detection sensor (213a) and a second wear detection sensor (213b) provided in a speaker casing (e.g., a first casing (201a)). In one embodiment, a third wear detection sensor not illustrated may be provided in a circuit casing (e.g., a second casing (201b)). In one embodiment, when a third wear detection sensor not illustrated is provided in a circuit casing (e.g., a second casing (201b)), the first wear detection sensor (213a) provided in the first casing (201a) may be omitted. In one embodiment, the first wear detection sensor (213a), the second wear detection sensor (213b) and / or the third wear detection sensor not shown may be implemented by any one of a proximity sensor, a skin sensor, or an infrared detection sensor.

[0110] According to one embodiment, a first wear detection sensor (213a) may be provided on an outer surface (CS) of the first casing (201a). In one embodiment, the outer surface (CS) of the first casing (201a) may be an area that comes into substantial direct contact with the user's body when the wearable electronic device (200) is worn on the user's body in a first state (e.g., the state shown in FIG. 2). For example, the wearable electronic device (200) may detect that it is in the first state and is worn on the user's body using the first wear detection sensor (213a).

[0111] According to one embodiment, a second wear detection sensor (213b) and / or a third wear detection sensor not illustrated may be provided in at least one contact area of ​​the first casing (201a) and the second casing (201b) (e.g., the first area (SA1) or the second area (SA2) of FIG. 13). In one embodiment, the first area (SA1) or the second area (SA2) may be an area that comes into substantial direct contact with the user's body when the wearable electronic device (200) is worn on the user's body in a second state (e.g., the state illustrated in FIG. 4). For example, the wearable electronic device (200) may detect that it is in the second state and is worn on the user's body using the second wear detection sensor (213b) and / or a third wear detection sensor not illustrated.

[0112] According to one embodiment, the wearable electronic device (200) may tune the output sound upon detecting wearing in a first state and / or wearing in a second state. In one embodiment, when the wearable electronic device (200) is worn in a second state, the soundproofing hole or the third acoustic hole (211c) may be moved away from the user's ear canal, thereby degrading the low-frequency sound provided to the user. For example, when it is detected that it is worn in a second state, the wearable electronic device (200) may control a speaker unit (e.g., speaker unit (19a) of FIG. 2) to reinforce the low-frequency sound.

[0113] As described above, a wearable electronic device according to the embodiment(s) of the present disclosure (e.g., the electronic device (101) of FIG. 1, or the wearable electronic device (10, 200) of FIG. 4 or FIG. 13) can be varied between an in-ear mode and an open mode, making it easy to adjust performance regarding external noise suppression or comfort. For example, a wearable electronic device according to the embodiment(s) of the present disclosure can provide optimal sound corresponding to the user's needs or usage environment. Depending on the wearing state, the user can select the comfort or performance regarding external noise suppression of one wearable electronic device to receive optimal sound, thereby reducing the user's economic burden and improving portability.

[0114] The effects obtainable from the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present disclosure belongs from the description of the above-described embodiment(s).

[0115] According to one embodiment of the present disclosure, a wearable electronic device (e.g., electronic device (101) of FIG. 1, or wearable electronic device (10, 200) of FIG. 4 or FIG. 13) comprises: a first casing (e.g., first casing (201a) of FIG. 4 or FIG. 13) that accommodates a speaker unit (e.g., speaker unit (19a) of FIG. 2)) and includes an acoustic hole (e.g., acoustic hole (15) of FIG. 4 or third acoustic hole (211c) of FIG. 11) for acoustic output; a second casing (e.g., first casing (201a) of FIG. 4 or FIG. 13)) that accommodates at least one of a circuit board (e.g., circuit board (19b) of FIG. 2) or a battery (e.g., battery (19c) of FIG. 2) electrically connected to the speaker unit, and is configured to be coupled to the first casing with a portion of its surface (hereinafter referred to as a 'contact area') (e.g., second area (SA2) of FIG. 15) concealed (e.g. It may include a second casing (201b) of FIG. 13 or 4), and a link structure (e.g., a link structure (13, 203) of FIG. 4 or 13) provided between the first casing and the second casing and configured to maintain the first casing mechanically connected to the second casing when the second casing is separated from the first casing with the contact area exposed to the external space. In one embodiment, when the wearable electronic device is worn on a user's body with the second casing coupled to the first casing, the soundproofing may be configured to be positioned toward the inside of the user's ear canal. In one embodiment, when the second casing is separated from the first casing, the second casing and the first casing may be configured to come into contact with the user's body with the second casing and the first casing facing each other with a part of the user's body in between.

[0116] According to one embodiment, when the second casing is spaced apart from the first casing, the link structure may be configured to provide a force acting in a direction that brings the contact area closer to the first casing.

[0117] According to one embodiment, the first casing may further include at least one vent hole (e.g., port hole (219a) in FIG. 14). In one embodiment, when the second casing is coupled to the first casing, the at least one vent hole may be disposed within an area facing the contact area (e.g., first area (SA1) in FIG. 14).

[0118] According to one embodiment, the wearable electronic device described above may further include at least one vent hole provided in the first casing and a dummy hole provided in the contact area (e.g., the second dummy hole (219b) of FIG. 15). In one embodiment, when the second casing is coupled to the first casing, the at least one vent hole may be configured to be connected to the internal space of the second casing through the dummy hole.

[0119] According to one embodiment, the wearable electronic device described above may further include an ear tip (e.g., ear tip 217 of FIG. 11)) detachably provided to the first casing at least a portion of the circumference of the soundproofing hole. In one embodiment, when the wearable electronic device is worn on a user's body with the second casing coupled to the first casing, at least a portion of the ear tip may be configured to come into direct contact with the user's body.

[0120] According to one embodiment, the wearable electronic device described above may further include a first magnet disposed in the first casing (e.g., the first magnet (37a) of FIG. 8 or 9), and a second magnet disposed in the second casing (e.g., the second magnet (37b) of FIG. 8 or 9). In one embodiment, when the second casing is coupled to the first casing, the first magnet and the second magnet may be configured to generate an attractive force.

[0121] According to one embodiment, the electronic device described above may further include a hook (e.g., hook (37c) of FIG. 9) disposed on either the first casing or the second casing. In one embodiment, when the second casing is coupled to the first casing, the hook may be configured to secure the second casing onto the first casing by being fastened to the other of the first casing or the second casing.

[0122] According to one embodiment, the link structure may be configured to contract or expand by including a telescopic tube structure (e.g., see FIG. 4 or FIG. 7).

[0123] According to one embodiment, the internal space of the second casing may be connected to the internal space of the second casing through the barrel structure.

[0124] According to one embodiment, the link structure may include a first slider provided in either the first casing or the second casing (e.g., the first slider (13a, 23a) of FIG. 4 or FIG. 7), and a second slider provided in the other of the first casing or the second casing (e.g., the second slider (13b, 23b) of FIG. 4 or FIG. 7). In one embodiment, the second slider may be configured to be received in the first slider or withdrawn from the first slider by reciprocating along a designated direction.

[0125] According to one embodiment, the link structure may include a hinge (e.g., see FIGS. 8 to 10) having one end connected to the first casing and the other end connected to the second casing. In one embodiment, the first casing may be configured to rotate between a specified angle position and a position coupled to the second casing, guided by the hinge.

[0126] According to one embodiment, the hinge may be fixed to either the first casing or the second casing and may be rotatably or movably coupled to the other of the first casing or the second casing.

[0127] According to one embodiment of the present disclosure, a wearable electronic device (e.g., electronic device (101) of FIG. 1, or wearable electronic device (10, 200) of FIG. 4 or FIG. 13) accommodates a speaker unit (e.g., speaker unit (19a) of FIG. 2)) and includes a first casing (e.g., first casing (201a) of FIG. 4 or FIG. 13) comprising an acoustic hole for acoustic output (e.g., acoustic hole (15) of FIG. 4 or third acoustic hole (211c) of FIG. 11) and at least one vent hole (e.g., port hole (219a) of FIG. 14), accommodates a battery (e.g., battery (19c) of FIG. 2)) and a circuit board (e.g., circuit board (19b) of FIG. 2)) and the first casing having a portion of a surface (hereinafter referred to as a 'contact area') (e.g., second area (SA2) of FIG. 15) concealed therefrom It may include a second casing configured to be coupled to a casing (e.g., the second casing (201b) of FIG. 4 or FIG. 13), and a link structure (e.g., the link structure (13, 203) of FIG. 4 or FIG. 13) provided between the first casing and the second casing and configured to maintain the first casing mechanically connected to the second casing when the second casing is separated from the first casing with the contact area exposed to the outside space. In one embodiment, when the wearable electronic device is worn on a user's body with the second casing coupled to the first casing, the soundproofing may be configured to be positioned toward the inside of the user's ear canal. In one embodiment, when the second casing is separated from the first casing with a part of the user's body in between, the link structure may be configured to provide a force acting in a direction that brings the contact area closer to the first casing.

[0128] According to one embodiment, when the second casing is coupled to the first casing, the at least one vent hole may be positioned within an area facing the contact area (e.g., the first area (SA1) of FIG. 14).

[0129] According to one embodiment, the wearable electronic device described above may further include a dummy hole provided in the contact area (e.g., the second dummy hole (219b) of FIG. 15). In one embodiment, when the second casing is coupled to the first casing, the at least one vent hole may be configured to be connected to the internal space of the second casing through the dummy hole.

[0130] According to one embodiment, the wearable electronic device described above may further include an ear tip (e.g., ear tip 217 of FIG. 11)) detachably provided to the first casing at least a portion of the circumference of the soundproofing hole. In one embodiment, when the wearable electronic device is worn on a user's body with the second casing coupled to the first casing, at least a portion of the ear tip may be configured to come into direct contact with the user's body.

[0131] According to one embodiment, the wearable electronic device described above may further include a first magnet disposed in the first casing (e.g., the first magnet (37a) of FIG. 8 or 9), and a second magnet disposed in the second casing (e.g., the second magnet (37b) of FIG. 8 or 9). In one embodiment, when the second casing is coupled to the first casing, the first magnet and the second magnet may be configured to generate an attractive force.

[0132] According to one embodiment, the wearable electronic device described above may further include a hook (e.g., hook (37c) of FIG. 9) disposed on either the first casing or the second casing. In one embodiment, when the second casing is coupled to the first casing, the hook may be configured to secure the second casing onto the first casing by being fastened to the other of the first casing or the second casing.

[0133] According to one embodiment, the link structure may be configured to contract or expand by including a telescopic tube structure (e.g., see FIG. 4 or FIG. 7). In one embodiment, the internal space of the second casing may be connected to the internal space of the second casing through the telescopic tube structure.

[0134] According to one embodiment, the link structure may include a first slider provided in either the first casing or the second casing (e.g., the first slider (13a, 23a) of FIG. 4 or FIG. 7), and a second slider provided in the other of the first casing or the second casing (e.g., the second slider (13b, 23b) of FIG. 4 or FIG. 7). In one embodiment, the second slider may be configured to be received in the first slider or withdrawn from the first slider by reciprocating along a designated direction.

[0135] According to one embodiment, the link structure may include a hinge, one end of which is fixed to either the first casing or the second casing and the other end of which is rotatably or movably coupled to the other of the first casing or the second casing (e.g., see FIGS. 8 to 10). In one embodiment, the first casing may be configured to rotate between a specified angle position from a position coupled to the second casing under the guidance of the hinge.

[0136] Although the present disclosure has been described by way of example with respect to one embodiment, it should be understood that the embodiment is for illustrative purposes only and not to limit the present disclosure. It will be obvious to those skilled in the art that various changes in form and detailed configuration may be made without departing from the whole context of the present disclosure, including the appended claims and their equivalents. Any one of the link structures (13, 23, 33, 43, 203) of the above-described embodiment(s) may be combined with the magnets or hook(s) of FIG. 9 to implement additional embodiments.

Claims

1. In a wearable electronic device (101; 10; 20; 30; 40; 200), A first casing (11a; 201a) that accommodates a speaker unit (19a) and includes an acoustic hole (15; 211c) for acoustic output; A second casing (11b; 201b) configured to accommodate at least one of a circuit board (19b) or a battery (19c) electrically connected to the speaker unit, and configured to be coupled to the first casing with a portion of its surface (hereinafter, 'contact area') (SA2) concealed; and It includes a link structure (13; 203) provided between the first casing and the second casing, configured to maintain the first casing mechanically connected to the second casing when the second casing is separated from the first casing with the contact area exposed to the external space, When the wearable electronic device is worn on a user's body with the second casing coupled to the first casing, the soundproofing hole is configured to be positioned toward the inside of the user's ear canal, and A wearable electronic device configured such that when the second casing is separated from the first casing, the second casing and the first casing face each other and come into contact with the user's body with a part of the user's body in between.

2. A wearable electronic device according to claim 1, wherein when the second casing is spaced apart from the first casing, the link structure is configured to provide a force acting in a direction that brings the contact area closer to the first casing.

3. In any one of paragraphs 1 to 2, The first casing further includes at least one vent hole (219a), and A wearable electronic device in which, when the second casing is coupled to the first casing, the at least one vent hole is disposed within an area (SA1) facing the contact area.

4. In any one of paragraphs 1 to 2, At least one vent hole (219a) provided in the first casing; and It further includes a dummy hole (219b) provided in the above contact area, A wearable electronic device configured such that when the second casing is coupled to the first casing, the at least one vent hole is connected to the internal space of the second casing through the dummy hole.

5. In any one of paragraphs 1 through 4, The above soundproofing device further includes an ear tip (217) detachably provided to the first casing at least in part of the perimeter, and A wearable electronic device configured such that when the wearable electronic device is worn on a user's body with the second casing coupled to the first casing, at least a portion of the ear tip is configured to come into direct contact with the user's body.

6. In any one of paragraphs 1 through 5, A first magnet (37a) placed in the first casing above; and It further includes a second magnet (37b) placed in the second casing, and A wearable electronic device configured such that when the second casing is coupled to the first casing, the first magnet and the second magnet generate an attractive force.

7. In any one of paragraphs 1 through 5, It further includes a hook (37c) disposed in either the first casing or the second casing, and A wearable electronic device configured to secure the second casing onto the first casing by fastening the hook to either the first casing or the second casing when the second casing is coupled to the first casing.

8. A wearable electronic device configured to contract or expand by including a telescopic tube structure in any one of claims 1 to 7.

9. A wearable electronic device according to claim 8, wherein the internal space of the second casing is connected to the internal space of the second casing through the barrel structure.

10. In any one of claims 1 to 7, the link structure is, A first slider (13a; 23a) provided in either the first casing or the second casing; and It includes a second slider (13b; 23b) provided in the other of the first casing or the second casing, and A wearable electronic device configured such that the second slider is received by or withdrawn from the first slider by reciprocating along a designated direction.

11. In any one of claims 1 to 7, the link structure comprises a hinge having one end connected to the first casing and the other end connected to the second casing, and A wearable electronic device configured such that the first casing rotates between a specified angle position and a position coupled to the second casing under the guidance of the hinge.

12. A wearable electronic device according to any one of claims 1 to 11, wherein when the second casing is spaced apart from the first casing and the second casing and the first casing are in contact with the user's body with the second casing and the first casing facing each other with a part of the user's body in between, the link structure is configured to bring the first casing and the second casing into close contact with the user's body.

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