Hinge assembly and electronic device comprising same

Abstract

According to an embodiment of the present disclosure, a hinge assembly and / or an electronic device comprising same comprises: a fixing member comprising a hollow shaft extending in the hinge axis direction; a shaft which is at least partially accommodated in the hollow shaft and rotates about the hinge axis in the hollow shaft; a bracket which is coupled to the hollow shaft so as to at least partially surround the hollow shaft and rotates about the hinge axis; and at least one link member having a part coupled to the shaft and another part fixed to the bracket. In one embodiment, the shaft and the bracket are connected via the at least one link member so as to rotate along with each other with respect to the hollow shaft. Other various embodiments may also be possible.

Description

Hinge assembly and electronic device including the same

[0001] Embodiments of the present disclosure relate to electronic devices, for example, hinge assemblies and / or electronic devices including the same.

[0002] Typically, the term "electronic device" can be used to refer to devices that enable communication functions such as voice calls and text messaging, multimedia functions such as music or video playback, and entertainment functions such as games. Such electronic devices can include desktop computers used at home or in the office, as well as laptop computers that offer improved portability and space efficiency in general use environments, including the home or office.

[0003] Electronic devices that include multiple housings or flexible displays can be useful for enhancing portability and space efficiency. For example, the housings can be unfolded to provide an expanded screen or input device during use, and folded or rolled for portability or storage. By incorporating touchscreen functionality into output devices such as displays, replacing input devices like keyboards (or keypads), electronic devices such as smartphones and tablet personal computers (PCs) have become more portable and usable on a daily basis. Despite the widespread use of electronic devices such as smartphones, demand for electronic devices such as laptops persists due to manufacturing costs and intended use. Efforts to miniaturize and lighten these office and home electronic devices are ongoing.

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

[0005] According to one embodiment of the present disclosure, a hinge assembly includes a fixed member including a hollow shaft extending along a hinge axis direction, a shaft at least partially received in the hollow shaft and configured to rotate about the hinge axis within the hollow shaft, a bracket coupled to surround at least a portion of the hollow shaft and configured to rotate about the hinge axis, and at least one link member having a portion coupled to the shaft and another portion fixed to the bracket. In one embodiment, the shaft and the bracket may be configured to rotate together with respect to the hollow shaft by being connected through the at least one link member.

[0006] According to one embodiment of the present disclosure, an electronic device includes a first housing, a second housing configured to pivot about a hinge axis between a first position facing the first housing and a second position extended from the first position by a specified angle, and a hinge assembly rotatably connecting the first housing and the second housing. In one embodiment, the hinge assembly includes a fixing member including a hollow shaft, at least partially disposed in one of the first housing and the second housing, and extending along the hinge axis direction, a shaft, at least partially received in the hollow shaft, and configured to rotate about the hinge axis within the hollow shaft, a bracket, at least partially disposed in the other of the first housing and the second housing, coupled to surround at least a portion of the hollow shaft and configured to rotate about the hinge axis, and at least one link member, a portion of which is coupled to the shaft and the other portion of which is fixed to the bracket. In one embodiment, the shaft and the bracket may be configured to rotate together with respect to the hollow shaft by being connected via the at least one link member.

[0007] The above-described aspects or other aspects, configurations and / or advantages of one embodiment of the present disclosure may be further clarified by the following detailed description taken in conjunction with the accompanying drawings.

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

[0009] FIG. 2 is a perspective view showing an electronic device according to one embodiment of the present disclosure.

[0010] FIG. 3 is a perspective view showing the electronic device of FIG. 2 unfolded according to one embodiment of the present disclosure.

[0011] FIG. 4 is a side view showing the arrangement of the hinge assembly of the electronic device of FIG. 2 according to one embodiment of the present disclosure.

[0012] FIG. 5 is a plan view showing the arrangement of the hinge assembly of the electronic device of FIG. 2 according to one embodiment of the present disclosure.

[0013] FIG. 6 is an exploded perspective view showing a hinge assembly of an electronic device according to one embodiment of the present disclosure.

[0014] FIG. 7 is a perspective view showing a fixing member in the hinge assembly of FIG. 6, according to one embodiment of the present disclosure.

[0015] FIG. 8 is a perspective view showing a shaft and / or bracket assembled to a fixing member in the hinge assembly of FIG. 6 according to one embodiment of the present disclosure.

[0016] FIG. 9 is a perspective view showing how link members(s) are assembled in the hinge assembly of FIG. 6 according to one embodiment of the present disclosure.

[0017] FIG. 10 is a perspective view showing a hinge assembly according to one embodiment of the present disclosure.

[0018] FIG. 11 is a drawing for explaining the operation of a hinge assembly according to one embodiment of the present disclosure.

[0019] FIG. 12 is a drawing showing a portion of a hinge assembly according to one embodiment of the present disclosure, taken along line A-A' of FIG. 10.

[0020] FIG. 13 is a perspective view showing a fixing member and / or shaft of a hinge assembly according to one embodiment of the present disclosure.

[0021] FIG. 14 is a drawing for explaining a state in which a shaft is assembled to a fixing member of a hinge assembly according to one embodiment of the present disclosure.

[0022] FIG. 15 is a perspective view showing a hinge assembly according to one embodiment of the present disclosure.

[0023] FIG. 16 is a perspective view showing a hinge assembly according to one embodiment of the present disclosure.

[0024] FIG. 17 is a drawing illustrating an unfolded state of an electronic device according to one embodiment of the present disclosure.

[0025] FIG. 18 is a drawing illustrating a folded state of an electronic device according to one embodiment of the present disclosure.

[0026] FIG. 19 is an exploded perspective view of an electronic device according to one embodiment of the present disclosure.

[0027] Throughout the attached drawings, similar reference numbers may be assigned to similar parts, components and / or structures.

[0028] An electronic device may be implemented with a structure in which a plurality of housings are connected to each other in a foldable or unfoldable manner by including a hinge assembly. Various components, such as input devices, output devices, processors, memories, and communication modules, may be appropriately arranged in the housings, thereby improving the usability and portability of the electronic device. One of the housings connected via the hinge assembly (e.g., a housing equipped with an input device such as a keyboard) may be placed on a flat surface such as a table, while the other (e.g., a housing equipped with an output device such as a display) may be placed facing the user in a state in which it is unfolded at a specified angle with respect to the housing placed on the flat surface. Maintaining the relative angles of these housings during use may be an indicator for evaluating the mechanical stability of the hinge assembly and / or the mechanical stability of the electronic device including the plurality of housings. However, in an environment in which electronic devices are increasingly becoming lighter or thinner, it may be difficult to implement a hinge assembly that provides mechanical stability sufficient to maintain a folded or unfolded state while mechanically connecting the housings.

[0029] One embodiment of the present disclosure is intended to at least resolve the above-described problems and / or disadvantages and provide at least the advantages described below, and can provide a hinge assembly having mechanical stability and / or an electronic device including the same.

[0030] One embodiment of the present disclosure can provide a hinge assembly and / or an electronic device including the same that can more stably maintain a mounting state of housings when manufactured to substantially the same size.

[0031] One embodiment of the present disclosure can provide a hinge assembly and / or an electronic device including the hinge assembly that can stably maintain a mounting state of housings while being miniaturized.

[0032] The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present disclosure belongs from the description below.

[0033] The following description of the accompanying drawings may provide an understanding of various exemplary implementations of the present disclosure, including the claims and their equivalents. While the exemplary embodiments disclosed in the following description include numerous specific details to aid understanding, they are to be considered as one example of various exemplary embodiments. Accordingly, those skilled in the art will appreciate that various modifications and variations of the various implementations described herein may be made without departing from the scope and spirit of the disclosure. Furthermore, descriptions of well-known functions and configurations may be omitted for clarity and conciseness.

[0034] The terms and words used in the following description and claims are not limited to their reference meanings and can be used to clearly and consistently describe one embodiment of the present disclosure. Therefore, it will be apparent to those skilled in the art that the following description of various implementations of the disclosure is provided for illustrative purposes, not for the purpose of limiting the scope of the disclosure and its equivalents.

[0035] Unless the context clearly dictates otherwise, the singular forms of "a," "an," and "the" should be understood to include plural meanings. Thus, for example, "a component surface" could be understood to include one or more of the surfaces of the component.

[0036] FIG. 1 is a block diagram of an electronic device (101) within 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 the electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of the electronic device (104) or the server (108) via a second network (199) (e.g., a long-range wireless communication network). In one embodiment, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In one embodiment, the electronic device (101) may have at least one of these components (e.g., the connection terminal (178)) omitted, or one or more other components added. In one embodiment, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0037] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store result data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor), or an auxiliary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (121). For example, when the electronic device (101) includes the main processor (121) and the auxiliary processor (123), the auxiliary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a given function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0038] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0039] The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto. The memory (130) can include volatile memory (132) or non-volatile memory (134).

[0040] The program (140) may be stored as software in the memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0041] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0042] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0043] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. According to one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0044] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0045] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0046] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) to an external electronic device (e.g., the electronic device (102)). In one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0047] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0048] The haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. According to one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0049] The camera module (180) can capture still images and videos. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0050] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0051] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0052] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with an external electronic device via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0053] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0054] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (198) or the second network (199), may be selected from the plurality of antennas, for example, by the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device via the at least one selected antenna. In one embodiment, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0055] In one embodiment, the antenna module (197) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.

[0056] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0057] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In one embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0058] Electronic devices according to embodiments of the present disclosure may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to embodiments of the present disclosure are not limited to the aforementioned devices.

[0059] The embodiments of the present disclosure and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to encompass various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly dictates otherwise. In this document, phrases such as "A or B," "at least one of A and B," "at least one of A or B," "A, B, or C," "at least one of A, B, and C," and "at least one of A, B, or C" can each include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used simply to distinguish the corresponding component from other corresponding components, and do not limit the corresponding components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as being “coupled” or “connected” to another component (e.g., a second component), with or without the terms “functionally” or “communicatively,” it is understood that the component can be connected to the other component directly (e.g., wired), wirelessly, or via a third component.

[0060] The term "module" 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. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0061] Embodiments of the present disclosure may be implemented as software (e.g., a program) including one or more instructions stored in a storage medium (e.g., built-in 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 instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, "non-transitory" only 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.

[0062] According to one embodiment, a method according to the embodiment(s) of the present disclosure may be provided as a computer program product. The computer program product may be traded between sellers and buyers as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read only memory (CD-ROM)) or may be provided through an application store (e.g., Play Store). TM ) or directly between two user devices (e.g., smartphones), online distribution (e.g., downloading or uploading). In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0063] According to one embodiment, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to one embodiment, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to one embodiment, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

[0064] FIG. 2 is a perspective view illustrating an electronic device (200) (e.g., electronic devices (101, 102, 104) of FIG. 1) according to one embodiment of the present disclosure. FIG. 3 is a perspective view illustrating an unfolded state of the electronic device (200) of FIG. 2 according to one embodiment of the present disclosure. FIG. 4 is a side view illustrating an arrangement of a hinge assembly (203) of the electronic device (200) of FIG. 2 according to one embodiment of the present disclosure. FIG. 5 is a plan view illustrating an arrangement of a hinge assembly (203) of the electronic device (200) of FIG. 2 according to one embodiment of the present disclosure.

[0065] Referring to FIGS. 2 to 5, an electronic device (200) according to one embodiment of the present disclosure (e.g., the electronic device (101, 102, 104) of FIG. 1) may include a first housing (201), a second housing (202), and / or a hinge assembly (203). The hinge assembly (203) may be disposed between the first housing (201) and the second housing (202) and may provide a hinge axis (H) extending in one direction. For example, the first housing (201) and / or the second housing (202) may rotate about the hinge axis provided by the hinge assembly between a first position facing each other (e.g., a state illustrated in FIG. 2) and a second position extended by a specified angle from the first position.

[0066] Here, the 'specified angle' may be generally within 180 degrees, and the second housing (202) may be stopped at an angle with respect to the first housing (201) at any angle position within the specified angle range. The stopped state of the second housing (202) with respect to the first housing (201) may be maintained by a torque or static friction provided by the hinge assembly (203). In one embodiment, the 'specified angle' may be approximately 360 degrees. For example, the second housing (202) may be rotated approximately 360 degrees from a first position where it is folded to face the upper surface of the first housing (201) and may be folded to face the lower surface of the first housing (201). When the display (221) positioned in the second housing (202) at the first position is defined as being concealed, the display (221) can be visually exposed to the external space when the second housing (202) is rotated by approximately 360 degrees from the first position.

[0067] According to one embodiment, the first housing (201) may be understood as a main body or main housing, and may house electronic components such as a processor (e.g., a processor (120) of FIG. 1), a battery (e.g., a battery (189) of FIG. 1), a memory (e.g., a memory (130) of FIG. 1), and / or a communication module (e.g., a communication module (190) of FIG. 1), as well as input devices (211a, 211b). Examples of the input devices (211a, 211b) include a keyboard (211a) or a touch pad (211b).

[0068] According to one embodiment, the second housing (202) as a sub-housing is rotatably coupled to one edge of the first housing (201) and may house an output device (e.g., a display (221)) as well as electronic components such as a sensor module (e.g., a sensor module (176) of FIG. 1), a camera module (e.g., a camera module (180) of FIG. 1) or an antenna module (e.g., an antenna module (197) of FIG. 1). The display (221) may be an example of the output device. In one embodiment, when a touchscreen function is installed, the display (221) may be understood as both an output device and an input device. For example, the keyboard (211a) or the touchpad (211b) of FIG. 3 may be replaced with a touchscreen display. In this case, the electronic device (200) may include a flexible display that provides a first display area disposed in the first housing and a second display area extending from the first display area and disposed in the second housing.

[0069] In one embodiment, the display (221) of FIG. 3 may be implemented as a flexible display that extends further than shown and extends to the first housing (201). For example, the electronic device (200) may include a flexible display that extends from the first housing (201) to the second housing (202). The flexible display generally functions as an output device that provides visual information, and may function as an input device by including a touch screen function in at least a portion of the area (e.g., an area disposed in the first housing (201).

[0070] In one embodiment, the hinge assembly (203) can pivotally couple the first housing (201) and the second housing (202) with respect to one edge of the first housing (201) and / or the second housing (202) such that the one edge of the first housing (201) and / or the second housing (202) is adjacent to one another. For example, the hinge axis (H) can be implemented at one edge of the first housing (201) and / or the second housing (202). In one embodiment, the first housing (201) and the second housing (202) can be pivotally coupled by a pair of hinge assemblies (203) being positioned at different locations with a specified interval between them. In the illustrated embodiment, the pair of hinge assemblies (203) can be at least partially positioned on a corresponding one of the hinge arms (213).

[0071] According to one embodiment, the first housing (201) may include hinge arms (213) provided at both ends of one edge. The hinge arms (213) are arranged on a hinge axis (H), and a portion of the second housing (202) (hereinafter, “hinge portion (223)”) may be arranged between the hinge arms (213). For example, the hinge portion (223) may rotate about the hinge axis (H) between the hinge arms (213), thereby allowing the second housing (202) to rotate about the hinge axis (H). In one embodiment, the hinge assembly (203) may rotatably couple the first housing (201) and the second housing (202) by having a portion (e.g., a rotating member (233)) fixed to one of the first housing (201) and the second housing (202) and another portion (e.g., a fixed member (231)) fixed to the other of the first housing (201) and the second housing (202).

[0072] In the illustrated embodiment, it can be understood that the fixed member (231) of the hinge assembly (203) is fixed to the interior of the second housing (202) (e.g., the hinge portion (223)), and the rotating member (233) (e.g., the bracket (233a) and the link member (233b)(s)) is fixed to the first housing (201) (e.g., one of the hinge arms (213)). As will be described later, the fixed member (231) and the rotating member (233) are structures that are rotatably coupled to each other, and the rotation of the first housing (201) and the second housing (202) with respect to each other can be understood as the rotation of the fixed member (231) and the rotating member (233) with respect to each other.

[0073] In describing the embodiment(s) of the present disclosure, a part of the hinge assembly (203) is referred to as a 'fixed member (231)' and another part is referred to as a 'rotating member (233)'. However, this is to distinguish the components when describing the hinge assembly (203), and it should be noted that the embodiment(s) of the present disclosure are not limited thereto. For example, the expression 'the rotating member (233) rotates (or rotates)' refers to the fixed member (231) when describing the operation of the hinge assembly (203), and the same expression can be understood as the fixed member (231) rotating or rotating with respect to the rotating member (233). Therefore, even if referred to as a 'fixed member (231)', it should be noted that the component indicated by reference numeral '231' can rotate with respect to another component (e.g., the rotating member (233)). In one embodiment, the fixed member (231) may be described as a first hinge member, and / or the rotating member (233) may be described as a second hinge member, and it is noted that the names of these components are not intended to limit the operation or function of the components when describing the embodiment(s) of the present disclosure.

[0074] According to one embodiment, the fixed member (231) is substantially fixed to the interior of the hinge portion (223) and may be partially disposed within the interior of the hinge arm (213)(s). For example, the rotating member (233) fixed to the first housing (201) within the hinge arm (213)(s) may be coupled to surround a portion of the fixed member (231) within the hinge arm (213)(s) so as to rotate (or pivot) about the hinge axis (H). In one embodiment, the rotating member (233) can rotate about the hinge axis (H) by including a bracket (233a) and / or a shaft (e.g., shaft (321) of FIG. 6) that is coupled to substantially surround a portion of the fixed member (231), and the bracket (233a) and shaft (321) are connected by link members (233b)(s) to rotate together with respect to the fixed member (231).

[0075] A more specific configuration of the hinge assembly (203) will be described with reference to FIGS. 6 to 15. In describing the embodiments described below, the electronic devices (101, 102, 104, 200) and / or the hinge assembly (203) of the preceding embodiments may be referred to.

[0076] FIG. 6 is an exploded perspective view showing a hinge assembly (300) (e.g., hinge assembly (203) of FIGS. 3 to 5) of an electronic device (e.g., electronic devices (101, 102, 104, 200) of FIGS. 1 to 5) according to one embodiment of the present disclosure.

[0077] Referring to FIG. 6, a hinge assembly (300) (e.g., hinge assembly (203) of FIGS. 3 to 5) may include a rotating member (302) (e.g., rotating member (233) of FIGS. 3 to 5) and a fixed member (301) (e.g., fixed member (231) of FIGS. 3 to 5). The rotating member (302) may be implemented as a combination of, for example, a shaft (321), a bracket (323) (e.g., bracket (233a) of FIG. 5), and / or a link member (325) (e.g., link member (233b) of FIG. 5). In one embodiment, the shaft (321) is at least partially housed within the interior of the fixed member (301) (e.g., a hollow shaft (315)), and the bracket (323) can be coupled to surround at least a portion of the fixed member (301) at the portion where the shaft (321) is housed.

[0078] In one embodiment, an environment capable of generating frictional force may be created on the outer surface of the shaft (321) and / or the inner surface of a portion of the bracket (323). This frictional force may be proportional to the area of ​​direct contact between the two components, for example. In one embodiment, the contact area between the rotating member (302) and the fixed member (301) may be understood as the outer surface area of ​​the shaft (321) and the inner surface area of ​​a portion of the bracket (323) (e.g., the sleeve (323a)). For example, the hinge assembly (300) may provide a wide area for generating frictional force by configuring the shaft (321) and the bracket (323) to rotate relative to the fixed member (301) (e.g., the hollow shaft (315)). In one embodiment, the frictional force generated between the rotating member (302) and the fixed member (301) by the outer surface of the shaft (321) and / or the inner surface of a portion of the bracket (323) can keep the housings (e.g., the first housing (201) and the second housing (202) of FIG. 2 or 3) in a folded state or stationary state relative to each other at an angle desired by the user.

[0079] According to one embodiment, the shaft (321) may be a rod-shaped member extending in one direction and may be arranged substantially coincident with or parallel to the hinge axis (H). For example, the shaft (321) may be accommodated in a fixed member (301) (e.g., a hollow shaft (315)) so as to be rotatable (e.g., rotated) about the hinge axis (H). At a portion accommodated in the fixed member (301), the shaft (321) may have a circular cross-section, thereby providing a wide contact area with the fixed member (301) during the rotational motion. Similarly, since the space in which the shaft (321) is accommodated is provided in a cylindrical shape, the shaft (321) and the fixed member (301) may be in substantial surface contact.

[0080] As will be described later, the shaft (321) may be coupled with the link member(s) and may be constrained to the link member(s) (325) in the rotational direction. For example, an end of the shaft (321) may be exposed to the outside of the fixed member (301), and at least a portion of the outer surface of the exposed portion may have a planar shape rather than a curved surface (e.g., the first D-shaped plane (321a) of FIG. 8). In one embodiment, the end of the shaft (321) may be positioned substantially within the space provided by the fixed member (301), and a portion of the link member(s) (325) may be constrained to the end of the shaft (321) within the space of the fixed member (301).

[0081] According to one embodiment, the bracket (323) may include a sleeve (323a) and a first fixing plate (323b). In one embodiment, the bracket (323) may be, for example, a plate whose one edge is processed into a tube shape (or rolled), and the portion processed into the tube shape may be provided as the sleeve (323a) and the remaining portion may be provided as the first fixing plate (323b). In one embodiment, the first fixing plate (323b) may be understood as extending from the sleeve (323a) to one side. In one embodiment, the sleeve (323a) may be a cylindrical tube shape extending along one direction (e.g., the direction of the hinge axis (H)) and may be coupled to surround a portion of the fixing member (301) (e.g., the hollow shaft (315)) while being aligned with the hinge axis (H). The inner surface of the sleeve (323a) and / or a portion of the fixing member (301) (e.g., a portion surrounded by a portion of the bracket (323) (e.g., a sleeve (323a))) may have a circular cross-section. For example, similar to the shaft (321), a sufficient contact area or frictional force of the sleeve (323a) or a portion of the fixing member (301) (e.g., a portion surrounded by the sleeve (323a)) may be secured during a rotational motion.

[0082] According to one embodiment, the rotating member (302) and / or the bracket (323) may include first fastening holes (323c)(s) for fastening with the link members (325)(s) and / or second fastening holes (323d)(s) for fastening or fixing within one of the housings (201, 202). The link members (325)(s) may be coupled to the shaft (321) while at least partially facing the bracket (323) (e.g., the first fixing plate (323b)). For example, by being interlocked by the link members (325)(s), the shaft (321) and the bracket (323) may rotate substantially simultaneously with respect to the fixing member (301).

[0083] In one embodiment, the first fastening hole (323c)(s) may be arranged in an area facing the link member (325)(s) on the first fixing plate (323a), and the fastening member (399) (e.g., rivet)(s) may fasten or secure the link member (325)(s) to the first fixing plate (323b) while facing each other. In the illustrated embodiment, a rivet is exemplified as the fastening member (399), but other fastening members such as screws or bolts may be used, and in one embodiment, the fastening member (399) may be omitted and the link member (325)(s) may be secured to the bracket (323) (e.g., the first fixing plate (323b)) by a bonding structure or a welding structure.

[0084] According to one embodiment, the link members (325)(s) may include a hub portion (325a) that is coupled or fixed to one of both ends of the shaft (321), and a second fixed plate (325b) extending from the hub portion (325a). The second fixed plate (325b) may be understood as a portion that is arranged to face the first fixed plate (323b), for example. For example, when the link members (325)(s) and the bracket (323) are fixed to each other, the fastening member (399) may be coupled or fixed by penetrating through the first fixed plate (323b) and the second fixed plate (325b).

[0085] In one embodiment, the second fixing plate (325b) may include a third fixing hole (325c) that is aligned to face the first fixing hole (323c) and / or accommodates at least a portion of the fixing member (399). For example, the fixing member (399) may pass through the first fixing hole (323c) and the third fixing hole (325c) to fix the first fixing plate (323b) and the second fixing plate (325b) to each other. In the illustrated embodiment, a configuration is exemplified in which link members (325) are respectively provided at both ends of the shaft (321) and coupled to a bracket (323) (e.g., the first fixing plate (323b)). For example, in rotating the shaft (321) and the bracket (323) substantially simultaneously on the fixed member (301) (e.g., the hollow shaft (315)), the rotational motion can be made more stable by providing a pair of link members (325).

[0086] In one embodiment, although not given a reference number, the link member (325)(s) may include a fastening hole that receives one end of the shaft (321). The fastening hole may have, for example, a shape corresponding to the end of the shaft (321) (e.g., a shape including a first D-shaped plane (321a)) such that the link member (325)(s) may be fastened to the shaft (321) in the rotational direction. In one embodiment, the shaft (321), the sleeve (323a) and / or the hub portion (325a) may be understood to rotate about the hinge axis (H), and the first fixed plate (323b) and / or the second fixed plate (325b) may be understood to pivot about the hinge axis (H). In the embodiments described below, the rotational motion or the pivotal motion may be referred to as substantially the same motion.

[0087] According to one embodiment, the fixing member (301) may include a third fixing plate (311) extending in one direction and a hollow shaft (315). The hollow shaft (315) has a substantially cylindrical tube shape and may accommodate at least a portion of the shaft (321). When arranging the hollow shaft (315), the fixing member (301) may further include a fixing boss (313) provided on the third fixing plate (311), and one end of the hollow shaft (315) may be fixed to the fixing boss (313). An adhesive may be utilized when coupling the hollow shaft (315) to the fixing boss (313). However, it should be noted that the embodiments of the present disclosure are not limited thereto. In one embodiment, the hollow shaft (315) may be arranged substantially aligned with the hinge axis (H), and the third fixed plate (311) may be arranged parallel to the hinge axis (H) at a specified interval. For example, when the second housing (202) rotates with respect to the first housing (201), the third fixed plate (311) may be understood to rotate around the hinge axis (H).

[0088] According to one embodiment, in the electronic device (200) of FIGS. 2 to 5, the fixing member (231, 301) (e.g., the third fixing plate (311)) is substantially fixed to the interior of the second housing (202) (e.g., the interior of the hinge portion (223)) and the hollow shaft (315) can be arranged in the interior of the first housing (201) (e.g., the interior of any one of the hinge arms (213)) while being aligned with the hinge axis (H). Although not given a reference number, the fixing member (301) includes fastening holes penetrating the third fixing plate (311), and the fastening holes of the third fixing plate (311) can be utilized in fixing the fixing member (301) to any one of the housings (201, 202) (e.g., the second housing (202)). In one embodiment, the rotating member (302), for example, the shaft (321), the bracket (323), and / or the link member (325)(s), may be rotatably disposed on the hollow shaft (315) while being substantially fixed inside the first housing (201). In one embodiment, in fixing the rotating member (302) inside the first housing (201), a fastening member (e.g., a screw) not shown may pass through the second fastening hole (323d) and be fastened to an internal structure (e.g., a fastening boss) of the first housing (201).

[0089] In one embodiment, the third fixed plate (311) may be disposed within one of the hinge arms (213) while the hollow shaft (315) is disposed within the hinge portion (223). For example, in the illustrated embodiment, the third fixed plate (311) is illustrated as being disposed within the second housing (202) (e.g., the hinge portion (223)), but it should be noted that the present disclosure is not limited to the illustrated embodiment in disposing the hinge assembly (300) on the housings (201, 202).

[0090] Hereinafter, the assembly structure of the hinge assembly (203, 300) described above will be described with reference to FIGS. 7 to 11. Since the configuration or assembly structure of the hinge assembly (203, 300) described below may be similar to the above-described embodiment, the reference numbers in the drawings may be assigned the same or may be omitted. When assembling the components of the hinge assembly (203, 300), it should be noted that the arrangement order or assembly order in the drawings described below does not limit the embodiments of the present disclosure, and the assembly order may vary depending on the specifications of the hinge assembly (203, 300) to be actually manufactured.

[0091] FIG. 7 is a perspective view showing a fixing member (301) in the hinge assembly of FIG. 6 (e.g., the hinge assembly (203, 300) of FIGS. 3 to 6) according to one embodiment of the present disclosure.

[0092] Referring to FIG. 7, the fixed member (301) can be implemented by combining a third fixed plate (311) (and / or a fixed boss (313)) and a hollow shaft (315). For example, one end (315a) of the hollow shaft (315) can be inserted into the fixed boss (313) along the hinge axis (H), so that the hollow shaft (315) can be aligned or assembled in a state substantially parallel to the third fixed plate (311) and substantially coincident with the hinge axis (H). In one embodiment, the hollow shaft (315) can be fixed to the fixed boss (313) (and / or the third fixed plate (311)) in a non-rotatable state. For example, even if the rotating member (302) rotates, the hollow shaft (315) maintains a fixed state, thereby generating a frictional force, and thereby provides a static frictional force at an angular position desired by the user to keep the housings stationary. When coupled to a fixed boss (313) in a non-rotatable state, the hollow shaft (315) may include a D-shaped plane (e.g., the second D-shaped plane (415b) of FIG. 14) formed on the outer surface of the end (315a). The plane structure for restraint in the rotational direction may be similar to the coupling structure between the shaft (321) and the link member (325) described above, and thus a detailed description thereof will be omitted.

[0093] FIG. 8 is a perspective view showing a shaft (321) and / or a bracket (323) being assembled to a fixing member (301) in the hinge assembly of FIG. 6 (e.g., the hinge assembly (203, 300) of FIGS. 3 to 6) according to one embodiment of the present disclosure.

[0094] Referring to FIG. 8, the shaft (321) may be substantially accommodated in the hollow shaft (315) and may protrude from both ends of the hollow shaft (315) at respective ends (e.g., a portion where the first D-shaped plane is formed). In one embodiment, one end of the shaft (321) may be understood to protrude from one side of the fixed boss (315). In one embodiment, the outer surface of the shaft (321) and the inner surface of the hollow shaft (315) are arranged to substantially contact each other, thereby providing a static frictional force that maintains the housings (201, 202) in a stationary state at an angular position according to a user's request.

[0095] In one embodiment, a portion of the bracket (323) (e.g., a sleeve (323a)) may be rotatably coupled to surround the hollow shaft (315). For example, the outer surface of the hollow shaft (315) and the inner surface of the sleeve (323a) may be arranged to substantially contact each other, thereby providing a static frictional force that keeps the housings (201, 202) stationary at an angular position according to a user's request. In one embodiment, when the shaft (321) and / or the sleeve (323a) rotate with respect to the hollow shaft (315), the first fixed plate (323b) may be understood to rotate about the hollow shaft (315). As mentioned above, this 'rotation of the first fixed plate (323b)' may be referred to as 'rotation of the first fixed plate (323b)' when describing the embodiment(s) of the present disclosure.

[0096] FIG. 9 is a perspective view illustrating an assembly of link members (325)(s) in the hinge assembly of FIG. 6 (e.g., hinge assemblies (203, 300) of FIGS. 3 to 6) according to one embodiment of the present disclosure. FIG. 10 is a perspective view illustrating a hinge assembly (300) according to one embodiment of the present disclosure. FIG. 11 is a drawing for explaining the operation of the hinge assembly (300) according to one embodiment of the present disclosure.

[0097] When the hinge assembly (300) is defined as being in a first position (e.g., the state of FIG. 2) where the housings (201, 202) face each other as illustrated in FIG. 10, FIG. 11 can illustrate the hinge assembly (300) when the housings (201, 202) are in a second position (e.g., the state of FIG. 3) where the housings (201, 202) are spread out at an angle of approximately 130 degrees.

[0098] Referring to FIGS. 9 to 11, the link members (325)(s) can be coupled to either end of the shaft (321) such that the hub portion (325a) accommodates the first D-shaped plane (321d). Although not given a reference number, the link members (325)(s) (e.g., the hub portion (325a)) can include a fastening hole having a shape corresponding to the end shape of the shaft (321) (e.g., the first D-shaped plane (321a)). For example, when the shaft (321) rotates, the link members (325)(s) can rotate (or pivot) with respect to the hollow shaft (315) together with the shaft (321).

[0099] According to one embodiment, when the second fixed plate (325b) is aligned at a position facing and / or in direct contact with the first fixed plate (323b), the fastening member (399) (e.g., a rivet) may be fastened to the first fastening hole (323c) and the third fastening hole (325c). For example, the link member (325)(s) may connect the shaft (321) and the bracket (323), so that when one of the shaft (321) and the bracket (323) rotates, the other of the shaft (321) and the bracket (323) may rotate. In the illustrated embodiment, by providing the link member (325) at each end of the shaft (321), the interlocking structure of the shaft (321) and the bracket (323) may be further stabilized.

[0100] In one embodiment, frictional force can be generated substantially simultaneously on the inner and outer surfaces of the hollow shaft (315). This frictional force can keep the housings (201, 202) stationary at an angular position according to a user's request. In one embodiment, when implemented with the same size, the hinge assembly (300) according to the embodiment(s) of the present disclosure can provide a larger area for generating frictional force, thereby providing a greater static frictional force. In one embodiment, the hinge assembly (300) according to the embodiment(s) of the present disclosure can be miniaturized while providing the same static frictional force. For example, the hinge assembly (300) according to the embodiment(s) of the present disclosure can stably maintain the stationary state of the housings (201, 202) at an angular position according to the user's request by miniaturizing and providing sufficient contact area between the hollow shaft (315) and the shaft (321) and / or between the hollow shaft (315) and the bracket (323 (e.g., sleeve (323a)).

[0101] FIG. 12 is a drawing showing a portion of a hinge assembly (e.g., hinge assembly (203, 300) of FIGS. 3 to 6) according to one embodiment of the present disclosure, cut along line A-A' of FIG. 10.

[0102] Referring to FIG. 12, when manufacturing a bracket (323) (e.g., a sleeve (323a) and / or a first fixing plate (323b)) by rolling up a portion of an edge of a plate member, a first slit (323e) may be formed between the sleeve (323a) and the first fixing plate (323b). For example, a specified gap may be provided between an end of the sleeve (323a) and another portion of the sleeve (323a) (or a portion of the surface of the first fixing plate (323b)) to implement the first slit (323e). In one embodiment, in an initial manufacturing state and / or a pre-assembly state, the inner diameter of the sleeve (323a) may be smaller than the outer diameter of the hollow shaft (315), and when deformed by an external force, the sleeve (323a) may accumulate elastic restoring force.

[0103] In one embodiment, when the first slit (323e) is deformed into a slightly expanded form when coupled to surround the hollow shaft (315), the sleeve (323a) can accumulate elastic force. The elastic force accumulated in the sleeve (323a) can substantially act as a force that adheres the sleeve (323a) to the outer surface of the hollow shaft (315). For example, the first slit (323e) can provide a condition that allows the hinge assembly (300) to generate a greater static frictional force between the hollow shaft (315) and the bracket (323) (e.g., the sleeve (323a)).

[0104] Similar to the first slit (323e), the hollow shaft (315) may include a second slit (e.g., the second slit (415a) of FIGS. 13 and 14). An embodiment of such a hollow shaft will be described with reference to FIGS. 13 and 14.

[0105] FIG. 13 is a perspective view showing a fixing member (301) and / or a shaft (321) of a hinge assembly (e.g., hinge assembly (203, 300) of FIGS. 3 to 6) according to one embodiment of the present disclosure. FIG. 14 is a drawing for explaining a state in which a shaft (321) is assembled to a fixing member (301) of a hinge assembly (300) according to one embodiment of the present disclosure.

[0106] Referring further to FIGS. 13 and 14, the hollow shaft (415) of the fixed member (301) may include a second slit (415a) extending along the longitudinal direction, and may accumulate elastic restoring force as the second slit (415a) expands or contracts when deformed by an external force. In the initial manufacturing state or the pre-assembly state, the inner diameter of the hollow shaft (415) may be smaller than the outer diameter of the shaft (321). For example, when the second slit (415a) is somewhat expanded when combined to wrap around the shaft (321), the hollow shaft (415) may accumulate elastic force. The elastic force accumulated in the hollow shaft (415) may substantially act as a force that brings the hollow shaft (415) into close contact with the outer surface of the shaft (321). For example, the second slit (415a) can provide conditions for generating a greater static frictional force between the shaft (321) and the hollow shaft (415).

[0107] According to one embodiment, the hollow shaft (415) may be manufactured as a single piece body with the third fixed plate (311) and / or the fixed boss (313). In one embodiment of the present disclosure, the hollow shaft (415) may be manufactured separately from the third fixed plate (311) and / or the fixed boss (313) and may be coupled to the fixed boss (313) in a separate assembly process. In a structure in which the hollow shaft (415) is coupled to the fixed boss in a separate assembly process (313), the hollow shaft (415) may further include a second D-shaped flat surface (415b) provided at one end (e.g., the portion indicated as '315a' in FIG. 7). By including the second D-shaped flat surface (415b), the hollow shaft (415) may be restrained from rotating on the third fixed plate (311) and / or the fixed boss (313). For example, in the folding or unfolding motion of the housings (201, 202), the rotating member (302) (e.g., shaft (321), bracket (e.g., bracket (323) of FIG. 6) and / or link member (e.g., link member (325) of FIG. 6))(s) rotates with respect to the hollow shaft (415), and provides static frictional force on the inner and outer surfaces of the hollow shaft (415) to maintain the folded state (or the state of unfolding at an angle relative to each other) of the housings (201, 202) according to the user's request. The shape of the hollow shaft (415), for example, the second D-shaped plane (415b), can also be provided in the embodiment of the hollow shaft (315) of FIG. 6.

[0108] In one embodiment, as the second slit (415a) is formed, an acute, obtuse, and / or right-angled corner may be created between the inner wall of the second slit (415a) and the outer surface (or inner surface) of the hollow shaft (415). Such a corner may cause damage, such as scratches, to the inner surface of the sleeve (323a) or the outer surface of the shaft (321) during the assembly process or during a rotational motion. In one embodiment, the corner portion(s) of the hollow shaft (415) and / or its surrounding area due to the formation of the second slit (415a) can be processed, such as by a beveled surface treatment (I) or a curved surface treatment (R), to suppress damage due to friction or interference between different parts (e.g., the hollow shaft (415) and the sleeve (323a), or the hollow shaft (415) and the shaft (321)) during the assembly process or operation of the hinge assembly (203, 300).

[0109] FIG. 15 is a perspective view showing a hinge assembly (500) (e.g., hinge assembly (203, 300) of FIGS. 3 to 6) according to one embodiment of the present disclosure.

[0110] Referring to FIG. 15, the hinge assembly (500) may include a first hinge assembly (500a) and a second hinge assembly (500b) that are connected (or coupled) in parallel. Although not shown, the hinge assembly (500) may further include a third hinge assembly connected in parallel to the rotation member (302) of the second hinge assembly (500b), and / or a fourth hinge assembly connected in parallel to the rotation member of the third hinge assembly. For example, the hinge assembly (500) of FIG. 15 may be implemented by connecting the above-described hinge assemblies (e.g., the hinge assembly (300) of FIGS. 3 to 14) in parallel. In one embodiment, the structure of the first hinge assembly (500a) and / or the structure of the second hinge assembly (500b) may be substantially the same as the hinge assembly (300) discussed with reference to FIGS. 3 to 14.

[0111] According to one embodiment, the shape of the fixed member (301, 501) or the rotating member (302) may be appropriately modified depending on the specifications of the electronic device (e.g., the electronic devices (101, 102, 104, 200) of FIGS. 1 to 5) and / or the hinge assembly (203, 300, 500). For example, the fixed member (501) of the first hinge assembly (500a) may have a plate shape arranged parallel to one side of the rotating member (302). For example, the hinge arm (213) of FIG. 3 and / or the hinge portion (223) of FIG. 3 may be omitted, and a portion of the fixed member (501) of the first hinge assembly (500a) may be fixed inside either the first housing (201) or the second housing (202). In this case, a portion of the rotation member (302) of the second hinge assembly (500b) may be fixed to the inside of the other of the first housing (201) and the second housing (202). When including such a hinge assembly (500), the hinge arm (213) and / or the hinge portion (223) of FIG. 3 may be omitted, and the first housing (201) and the second housing (202) may have a substantially rectangular shape or a rectangular parallelepiped shape. However, the embodiment of the present disclosure is not limited thereto, and some of the surfaces of the first housing (201) and the second housing (202) may include a curved surface or an inclined surface.

[0112] In one embodiment, the first hinge assembly (500a) may provide a first hinge axis (H1), and the second hinge assembly (500b) may provide a second hinge axis (H2) disposed at a specified distance from the first hinge axis (H1). The first hinge axis (H1) and the second hinge axis (H2) may be substantially parallel. In one embodiment, each of the hollow shaft of the first hinge assembly (500a) (e.g., the hollow shaft (315) of FIG. 6) and / or the hollow shaft of the second hinge assembly (500b) (e.g., the hollow shaft (315) of FIG. 6)) may generate a static frictional force to support or maintain the housings (201, 202) in a state desired by a user. In one embodiment, the hinge arm (213) and / or the hinge portion (223) of FIG. 3 are omitted so that the first housing (201) and the second housing (202) have a structure that is substantially rectangular or rectangular parallelepiped, and / or when a portion of the fixed member (501) of the first hinge assembly (500a) and a portion of the rotational member (302) of the second hinge assembly (500b) are fixed to the inside of one of the housings (201, 202), the first hinge axis (H1) and the second hinge axis (H2) can be arranged in the areas of the first housing (201) and the second housing (202). For example, when the hinge axis (H) of FIG. 2 or FIG. 3 is defined as penetrating a portion of the first housing (201) on the hinge arm (213) and penetrating a portion of the second housing (202) on the hinge portion (223), in an electronic device including the hinge assembly (500) of FIG. 15, it can be understood that the hinge axes (H1, H2) are located outside of the housings (e.g., the housings (201, 202) of FIG. 2 or FIG. 3).

[0113] According to one embodiment, the display (221) may be extended to reach the area where the input devices (211a, 211b) of the first housing (201) of FIG. 3 are arranged, and the display (221) may include a touchscreen function at least in an area corresponding to the first housing (201), thereby replacing the input devices (211a, 211b) of FIG. 3. For example, the electronic device (200) according to the embodiment(s) of the present disclosure may include a flexible display arranged from the first housing (201) to the second housing (202). In this case, when the housings (201, 202) are folded, a portion of the display (221) adjacent to the hinge arm (213)(s) and / or the hinge portion (223) may be deformed into a shape having a significantly large curvature (e.g., a radius of curvature of approximately 1 mm or less). When the display (221) is structured to be deformed into a shape having a considerably large curvature, the internal structure of the display (221) (e.g., pixel(s), arrangement of pixels, and / or various electrical wirings) may be damaged by the deformation of the display (221). The hinge assembly (500) of FIG. 15 has a first hinge axis (H1) and a second hinge axis (H2) arranged at a specified interval, so that even when the housings (201, 202) are folded, the curvature of the display (221) can be maintained within a specified range (e.g., a radius of curvature of approximately 2 mm or more).

[0114] FIG. 16 is a perspective view showing a hinge assembly (600) (e.g., hinge assembly (203, 300) of FIGS. 3 to 6 or FIG. 15) according to one embodiment of the present disclosure.

[0115] The hinge assembly (600) illustrated in FIG. 16 may be similar to the hinge assembly (500) of FIG. 15 in that it provides a first hinge axis (H1) and a second hinge axis (H2) that are substantially parallel and spaced apart from each other. However, the hinge assembly (600) of FIG. 16 may differ from the hinge assembly (500) of the preceding embodiment in that it includes a plurality of rotating members (602) that are rotatably (or pivotally) coupled to a single fixed member (601).

[0116] According to one embodiment, the fixing member (601) may be a plate-shaped member extending along the direction of the hinge axis (H1, H2)(s) and may provide receiving spaces (619a) extending inwardly from different side surfaces (or edges). In one embodiment, the fixing member (601) may include hollow shafts (615) (e.g., the hollow shafts (315) of FIG. 6 or 7) arranged in the receiving spaces (619a). It may be understood that one of the hollow shafts (615) is aligned with the first hinge axis (H1), and the other of the hollow shafts (615) is aligned with the second hinge axis (H2). The shape or structure of the hollow shafts (615) may be similar to the above-described embodiment. In one embodiment, one end of the hollow shaft (615) may be fixed to the inner wall of the receiving space (619a), and the other end may be positioned spaced apart from the inner wall of the receiving space (619). In one embodiment, when both inner walls of the receiving space (619) have a structure similar to the fixed boss (313) of FIG. 7, both ends of the hollow shaft (615) may have a structure in which they are fixed to both inner walls of the receiving space (619a).

[0117] According to one embodiment, although not shown, similarly to FIG. 6 or FIG. 8, a shaft (shaft (321) of FIG. 6 or FIG. 8) may be rotatably received in a hollow shaft (615). When received in the hollow shaft (615), one end of the shaft (e.g., the first D-shaped plane (321a) of FIG. 8) may be exposed at an end of the hollow shaft (615). For example, when one end of the hollow shaft (615) is arranged spaced apart from the inner wall of the receiving space (619a), one end of the shaft (e.g., the first D-shaped plane (321a) of FIG. 8) may be exposed at an end of the hollow shaft (615) while being positioned in the receiving space (619a). In one embodiment, when the fixed member (601) has a structure similar to the fixed boss (313) of FIG. 7, both ends of the hollow shaft (615) are fixed to the inner wall of the receiving space (619a), and both ends of the shaft can be positioned on the fixed member (601) while being arranged outside the receiving space (619a).

[0118] In one embodiment, the rotating member (602)(s) may include a bracket (623) (e.g., bracket (323) of FIG. 6) and a link member (625) (e.g., link member (325) of FIG. 6). For example, the bracket (623) may be coupled to surround the hollow shaft (615) so as to be rotatable about the hollow shaft (615), similar to the embodiment of FIG. 6, and the link member (625) may be secured to the shaft via a hub portion (625a) while being secured to the bracket (623). For example, the shaft and the bracket (623) may be connected via the link member (625) (and / or the hub portion (625a)) such that they may rotate substantially simultaneously about the hollow shaft (615). In one embodiment, when the fixed member (601) is defined as being fixed on the hinge axes (H1, H2), the rotating member (602) can be understood to rotate around one of the hinge axes (H1, H2).

[0119] According to one embodiment, the hinge assembly (600) and / or the rotational member (602)(s) may further include a fixed piece (629)(s). The fixed piece (629) may be understood to extend from, for example, a bracket (623) or a link member (625) and be arranged parallel to the hinge axis (H1, H2)(s). When the hinge assembly (600) connects or couples the housings (e.g., the housings (201, 202) of FIG. 2 or 3), at least a portion of the bracket (623), the link member (625) and / or the fixing member (629) may be accommodated (or fixed) in one of the housings (201, 202). For example, in FIG. 16, when the rotating member (602) illustrated in dotted lines is at least partially accommodated (or fixed) in the first housing (201), the rotating member (602) illustrated in solid lines may be at least partially accommodated in the second housing (202). When the rotating member (602) is accommodated or fixed in one of the housings (201, 202), the fixing member (629) may provide a stable connection or fixing structure.

[0120] In one embodiment, the hinge assembly (600) may further include an interlocking hinge module (609). The interlocking hinge module (609) may include a first engaging piece (691) that pivots (or rotates) about a first hinge axis (H1), a second engaging piece (692) that pivots (or rotates) about a second hinge axis (H2), and / or a gear module (693). The first engaging piece (691) may be secured to the first housing (201) of FIG. 2 or 3, for example, and the second engaging piece (692) may be secured to the second housing (202) of FIG. 2 or 3. In one embodiment, the gear module (693) may include at least one pair of sun gears meshed with each other, one of the sun gears rotating in response to the rotation of the first engagement piece (691), and the other of the sun gears rotating in response to the rotation of the second engagement piece (692).

[0121] In one embodiment, since the sun gears are in mesh, when the first engagement piece (691) rotates, the second engagement piece (692) can rotate by the sun gears. In one embodiment, when the first housing (201) rotates in a direction facing the second housing (202) (e.g., a folding direction), the second housing (202) can rotate in a direction in which it is folded to the first housing (201) by the interlocking hinge module (609) (e.g., the gear module (693)). In the illustrated embodiment, a configuration in which the interlocking hinge module (609) is arranged (or coupled) to one side of the fixing member (601) is illustrated, but it should be noted that the embodiment(s) of the present disclosure are not limited thereto. In one embodiment, the interlocking hinge module (609) can be arranged at a position a specified distance away from the fixing member (601). For example, the linkage hinge module (609) can be moved to the left along the first hinge axis (H1) or the second hinge axis (H2) from the state illustrated in FIG. 16 and placed at a position spaced apart from the fixed member (601) by a specified distance.

[0122] In this way, in implementing the hinge assembly (600) including the hollow shaft (615), rotating members (602) that rotate around different hinge axes (H1, H2) may be provided on one fixed member (601). When the display (221) is extended to reach the area where the input devices (211a, 211b) of the first housing (201) of FIG. 3 are arranged, the display (221) may be deformed between a curved shape and a flat shape in the portion (or area) adjacent to the hinge assembly (600). As described with reference to FIG. 15, in an electronic device including such an extended display structure, the hinge assembly (600) providing a plurality of different hinge axes (H1, H2) can facilitate deformation of the display while suppressing or alleviating damage to the display.

[0123] An electronic device including a hinge assembly (500, 600) of FIG. 15 or FIG. 16 will now be described with reference to FIGS. 17 to 19. In the embodiments described below, a plurality of housings are rotatably coupled so that the housings can rotate relative to each other between a first position in which they are folded to face each other and a second position in which they are unfolded parallel to one side of each other. In referring to the embodiments of the electronic device in the embodiments described below, a description referring to an orthogonal coordinate system may generally be described based on the unfolded state. In the electronic device of the embodiments described below, the folding axis(es) may be understood to be substantially parallel to the Y-axis direction. However, the embodiments of the present disclosure are not limited thereto, and the embodiments of the present disclosure may be understood to include an electronic device having a structure in which the folding axis(es) are parallel to the X-axis direction.

[0124] FIG. 17 is a diagram illustrating an unfolded state of an electronic device according to one embodiment of the present disclosure. FIG. 18 is a diagram illustrating a folded state of an electronic device according to one embodiment of the present disclosure.

[0125] Referring to FIGS. 17 and 18, the electronic device (700) may include a housing (701), a hinge cover (740) covering a foldable portion of the housing (701), and a display (730) disposed within a space formed by the housing (701). According to one embodiment, a surface on which a screen output from the display (730) is exposed may be defined as a front surface of the electronic device (700) (e.g., a first front surface (710a) and a second front surface (720a)). A surface opposite to the front surface may be defined as a back surface of the electronic device (700) (e.g., a first back surface (710b) and a second back surface (720b)). In one embodiment, a surface surrounding a space between the front surface and the back surface may be defined as a side surface of the electronic device (700) (e.g., a first side surface (710c) and a second side surface (720c)). The side of the electronic device (700) may be at least one side of the first housing (710) or the second housing (720). The electronic device (700) of FIGS. 17 and 18 may be referred to as a foldable electronic device, a portable electronic device, or a portable foldable electronic device. According to one embodiment, the housing (701) may be referred to as a foldable housing. The display (730) may be referred to as a “flexible display.”

[0126] In one embodiment, the housing (701) may include a first housing (710), a second housing (720) rotatable with respect to the first housing (710), a first rear cover (780), and a second rear cover (790). The housing (701) of the electronic device (700) is not limited to the shape and combination illustrated in FIGS. 17 and 18, and may be implemented by other shapes or combinations and / or combinations of parts. For example, in one embodiment, the first housing (710) and the first rear cover (780) may be formed integrally, and the second housing (720) and the second rear cover (790) may be formed integrally.

[0127] According to one embodiment, the first housing (710) is connected to a hinge structure (e.g., the hinge assembly (600) of FIG. 16 and / or the hinge assembly (702) of FIG. 19) and may include a first front surface (710a) facing a first direction and a first rear surface (710b) facing a second direction opposite to the first direction. The second housing (720) is connected to the hinge assembly (702) and includes a second front surface (720a) facing a third direction and a second rear surface (720b) ​​facing a fourth direction opposite to the third direction, and may rotate about the hinge assembly (702) with respect to the first housing (710). Accordingly, the electronic device (700) may be variable between a folded state and an unfolded state. The electronic device (700) may have the first front side (710a) facing the second front side (720a) in a folded state, and the third direction may be the same as the first direction in an unfolded state. In the following, unless otherwise stated, the directions are described based on the unfolded state of the electronic device (700).

[0128] According to one embodiment, the first housing (710) and the second housing (720) are arranged on both sides with respect to the folding axis (A) as the center, and may have an overall symmetrical shape with respect to the folding axis (A). As described below, the angle or distance between the first housing (710) and the second housing (720) may vary depending on whether the state of the electronic device (700) is in an unfolded state, a folded state, or an intermediate state. According to one embodiment, the second housing (720) additionally includes a sensor area (724) in which sensors (e.g., a front camera) are arranged, but may have a mutually symmetrical shape in other areas.

[0129] According to one embodiment, the folding axis (A) (e.g., the hinge axes (H1, H2)(s) of FIG. 16) may be a plurality (e.g., two) of parallel folding axes. In the present disclosure, the folding axis (A) is provided along the longitudinal direction (Y-axis direction) of the electronic device (700), but the direction of the folding axis (A) is not limited thereto. For example (not shown), the electronic device (700) may include a folding axis extending along the width direction (e.g., X-axis direction).

[0130] According to one embodiment, the electronic device (700) may include a structure into which a digital pen (not shown) can be attached. For example, the electronic device (700) may include a magnetic body configured to attach the digital pen to a side of the first housing (710) or a side of the second housing (720). According to one embodiment, the electronic device (700) may include a structure into which a digital pen can be inserted. For example, a hole (not shown) into which a digital pen can be inserted may be formed in a side of the first housing (710) or a side of the second housing (720) of the electronic device (700).

[0131] According to one embodiment, at least a portion of the first housing (710) and the second housing (720) may be formed of a metallic or non-metallic material having a rigidity of a size selected to support the display (730). At least a portion formed of the metallic material may provide a ground plane of the electronic device (700) and may be electrically connected to a ground line formed on a printed circuit board (e.g., the board portion (760) of FIG. 19).

[0132] According to one embodiment, the sensor area (724) may be formed to have a predetermined area adjacent to one edge or one corner of the second housing (720). However, the arrangement, shape, and size of the sensor area (724) are not limited to the illustrated example. For example, in another embodiment, the sensor area (724) may be provided in another corner of the second housing (720) or any area between the upper and lower corners or in the first housing (710). In one embodiment, components for performing various functions built into the electronic device (700) may be exposed to the front of the electronic device (700) through the sensor area (724) or through one or more openings provided in the sensor area (724). In one embodiment, the components may include various types of sensors. The sensor(s) may include, for example, at least one of a front camera, a receiver, or a proximity sensor.

[0133] In one embodiment, the first rear cover (780) is disposed on one side of the folding axis (A) at the rear of the electronic device (700) and may have, for example, a substantially rectangular periphery, the periphery of which may be wrapped by another structure of the first housing (710). Similarly, the second rear cover (790) is disposed on the other side of the folding axis (A) at the rear of the electronic device (700) and the periphery of which may be wrapped by another structure of the second housing (720).

[0134] According to one embodiment, the first rear cover (780) and / or the second rear cover (790) may have a shape that is substantially symmetrical about the folding axis (A axis). However, the first rear cover (780) and the second rear cover (790) do not necessarily have mutually symmetrical shapes, and in one embodiment, the electronic device (700) may include the first rear cover (780) and the second rear cover (790) of different shapes that are not symmetrical.

[0135] In one embodiment, the first rear cover (780), the second rear cover (790), the first housing (710), and the second housing (720) may provide spaces in which various components of the electronic device (700) (e.g., a printed circuit board or a battery) may be placed. In one embodiment, one or more components may be placed or visually exposed on the rear surface of the electronic device (700). For example, at least a portion of the sub-display (734) may be visually exposed through at least a portion of the first rear cover (780). In another embodiment, one or more components or sensors may be visually exposed through at least a portion of the second rear cover (790). In various embodiments, the sensors may include a proximity sensor and / or a camera module (706) (e.g., a rear camera).

[0136] According to one embodiment, a front camera exposed to the front of the electronic device (700) through one or more openings provided in the sensor area (724) or a camera module (706) exposed through at least a portion of the second rear cover (790) may include one or more lenses, image sensors, and / or image signal processors. In some embodiments, seven or more lenses (infrared camera, wide-angle and telephoto lenses) and image sensors may be arranged on one side of the electronic device (700).

[0137] According to one embodiment, the hinge cover (740) may be disposed between the first housing (710) and the second housing (720) to cover internal components (e.g., the hinge assembly (600) of FIG. 16 or the hinge assembly (702) of FIG. 19). According to one embodiment, the hinge cover (740) may be covered by portions of the first housing (710) and the second housing (720) or exposed to the outside, depending on the state of the electronic device (700) (flat state or folded state).

[0138] According to one embodiment, as illustrated in FIG. 17, when the electronic device (700) is in an unfolded state, the hinge cover (740) may be covered by the first housing (710) and the second housing (720) and may not be exposed. As another example, as illustrated in FIG. 18, when the electronic device (700) is in a folded state (e.g., a fully folded state), the hinge cover (740) may be exposed to the outside between the first housing (710) and the second housing (720). As another example, when the first housing (710) and the second housing (720) are in an intermediate state where they are folded at a certain angle, the hinge cover (740) may be partially exposed to the outside between the first housing (710) and the second housing (720). However, in this case, the exposed area may be less than that in the fully folded state. In one embodiment, the hinge cover (740) may include a curved surface.

[0139] In one embodiment, the display (730) may be positioned on a space formed (or defined) by the housing (701). For example, the display (730) may be seated on a recess provided by the housing (701) and may form a majority of the front surface of the electronic device (700). Accordingly, the front surface of the electronic device (700) may include the display (730), a portion of the first housing (710) adjacent to the display (730) and a portion of the second housing (720). The back surface of the electronic device (700) may include a first back cover (780), a portion of the first housing (710) adjacent to the first back cover (780), a second back cover (790), and a portion of the second housing (720) adjacent to the second back cover (790).

[0140] In one embodiment, the display (730) may include a plurality of spaced-apart display areas. For example, the display (730) may include a first display area (731) disposed on a first housing (710), a second display area (732) disposed on a second housing (720), and a folding area (733). In one embodiment, the first display area (731) and the second display area (732) may rotate about a folding axis (A).

[0141] According to one embodiment, the display (730) may refer to a display in which at least a portion of the display can be transformed into a flat or curved surface. For example, the display (730) may be a foldable or flexible display. According to one embodiment, the display (730) may include a folding area (733), a first display area (731) arranged on one side (e.g., the left side of the folding area (733) illustrated in FIG. 17) with respect to the folding area (733), and a second display area (732) arranged on the other side (e.g., the right side of the folding area (733) illustrated in FIG. 17). However, the division of the areas of the display (730) is exemplary, and the display (730) may be divided into a plurality of areas (e.g., four or more or two) depending on the structure or function. For example, in the embodiment illustrated in FIG. 17, the display (730) may be divided into regions by a folding region (733) extending parallel to the Y-axis or a folding axis (A), but in other embodiments, the display (730) may be divided into regions based on other folding regions (e.g., a folding region parallel to the X-axis) or other folding axes (e.g., a folding axis parallel to the X-axis). According to one embodiment, the display (730) may be coupled to or disposed adjacent to a touch detection circuit, a pressure sensor capable of measuring the intensity (pressure) of a touch, and / or a digitizer (not shown) configured to detect a magnetic field-type stylus pen.

[0142] According to one embodiment, the first display area (731) and the second display area (732) may have an overall symmetrical shape centered on the folding area (733). According to one embodiment (not shown), the second display area (732), unlike the first display area (731), may include a cut notch depending on the presence of the sensor area (724), but may have a shape that is substantially symmetrical with respect to the first display area (731) in other areas. For example, the first display area (731) and the second display area (732) may include a portion having a symmetrical shape with respect to each other and a portion having an asymmetrical shape with respect to each other.

[0143] Hereinafter, the operation of the first housing (710) and the second housing (720) and each area of ​​the display (730) according to the state of the electronic device (700) (e.g., flat state or unfolded state and folded state) will be described.

[0144] According to one embodiment, when the electronic device (700) is in a flat state (e.g., FIG. 17), the first housing (710) and the second housing (720) may be arranged to face the same direction at a substantially 180-degree angle. The surface of the first display area (731) of the display (730) and the surface of the second display area (732) may form a 180-degree angle with each other and face the same direction (e.g., toward the front of the electronic device). The folding area (733) may form the same plane as the first display area (731) and the second display area (732).

[0145] According to one embodiment, when the electronic device (700) is in a folded state (e.g., FIG. 18), the first housing (710) and the second housing (720) may be arranged to face each other. The surface of the first display area (731) of the display (730) and the surface of the second display area (732) may form a narrow angle (e.g., between about 0 and 10 degrees) with each other and may face each other. When the electronic device (700) is in a folded state, the folding area (733) may be formed as a curved surface having at least a predetermined curvature.

[0146] According to one embodiment, when the electronic device (700) is in an intermediate state (not shown), the first housing (710) and the second housing (720) may be arranged at a certain angle with respect to each other. The surface of the first display area (731) of the display (730) and the surface of the second display area (732) may form an angle that is greater than the angle in the folded state and less than the angle in the unfolded state. The folding area (733) may be formed as a curved surface having at least a portion of a certain curvature, and the curvature in this case may be less than that in the folded state.

[0147] FIG. 19 is an exploded perspective view of an electronic device according to one embodiment of the present disclosure.

[0148] Referring to FIG. 19, an electronic device (700) (e.g., the electronic device (101) of FIG. 1) may include a housing (701), a display (730), a hinge assembly (702), a battery (750), and a substrate (760). For example, the housing (701) may include a first housing (710), a second housing (720), a first rear cover (780), and a second rear cover (790). The configurations of the first housing (710), the second housing (720), the hinge cover (740), the first rear cover (780), and the second rear cover (790) of FIG. 19 may be all or part of the same as the configurations of the first housing (710), the second housing (720), the hinge cover (740), the first rear cover (780), and the second rear cover (790) of FIG. 17 and / or FIG. 18.

[0149] According to one embodiment, the first housing (710) and the second housing (720) may be assembled to each other so as to be coupled to both sides of the hinge assembly (702). For example, the hinge assembly (702) may be disposed in a hinge area between the first housing (710) and the second housing (720) to rotatably couple the first housing (710) and the second housing (720). Here, the 'hinge area' may refer to a space in which the hinge assembly (702) is disposed, an area at least partially surrounded by the hinge cover (740), and / or a space between the folding area (733) of the display (730) and the hinge cover (740). In one embodiment, the hinge area may be understood as a space substantially disposed corresponding to the folding area (733).

[0150] According to one embodiment, the first housing (710) may include a first support area (712) (e.g., a first support member) capable of supporting a component of the electronic device (700) (e.g., a first circuit board (762) and / or a first battery (752)) and a first side wall (711) surrounding at least a portion of the first support area (712). The first side wall (711) may include a first side of the electronic device (700) (e.g., the first side (710c) of FIG. 17). According to one embodiment, the second housing (720) may include a second support area (722) capable of supporting a component of the electronic device (700) (e.g., a second circuit board (764) and / or a second battery (754)) and a second side wall (721) surrounding at least a portion of the second support area (722). The second side wall (721) may include a second side of the electronic device (700) (e.g., the second side (720c) of FIG. 17).

[0151] In one embodiment, although not shown, the first housing (710) may include a first waterproof member disposed in the first support area (712), and / or the second housing (720) may include a second waterproof member disposed in the second support area (722). The first waterproof member and / or the second waterproof member may be disposed in a gap between the display (730) and the support area(s) (712, 722) to prevent moisture or foreign substances from entering the interior of the first housing (710) and / or the second housing (720).

[0152] According to one embodiment, the display (730) may include a first display area (731), a second display area (732), and / or a folding area (733). The configuration of the first display area (731), the second display area (732), and the folding area (733) of FIG. 19 may be all or part of the same as the configuration of the first display area (731), the second display area (732), and the folding area (733) of FIG. 17.

[0153] According to one embodiment, the electronic device (700) may further include a sub-display (734). In one embodiment, the sub-display (734) may display a screen in a different direction from the display areas (731, 732). For example, the sub-display (734) may output a screen in a direction opposite to the first display area (731). According to one embodiment, the sub-display (734) may be disposed on the first rear cover (780).

[0154] In one embodiment, the battery (750) may include a first battery (752) disposed within the first housing (710) and a second battery (754) disposed within the second housing (720). In one embodiment, the first battery (752) may be connected to the first circuit board (762), and the second battery (754) may be connected to the second circuit board (764). In one embodiment, the battery (750) may supply power to at least one component of the electronic device (700). In one embodiment, the battery (750) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0155] In one embodiment, the substrate portion (760) may include a first circuit board (762) disposed within a first housing (710) and a second circuit board (764) disposed within a second housing (720). In one embodiment, the first circuit board (762) and the second circuit board (764) may be electrically connected by at least one flexible printed circuit board (766). In one embodiment, at least a portion of the flexible printed circuit board (766) may be disposed across a hinge region or a hinge structure (e.g., a hinge assembly (702)). In one embodiment, the first circuit board (762) and the second circuit board (764) may be disposed within a space formed by the first housing (710), the second housing (720), the first rear cover (780), and the second rear cover (790). Components for implementing various functions of the electronic device (700) can be placed on the first circuit board (762) and the second circuit board (764).

[0156] According to one embodiment, the electronic device (700) may include speakers (708a, 708b). According to one embodiment, the speakers (708a, 708b) may convert electrical signals into sound. According to one embodiment, the speakers (708a, 708b) may be disposed within a space formed by the first housing (710), the second housing (720), the first rear cover (780), and the second rear cover (790). According to one embodiment, the speakers (708a, 708b) may include an upper speaker (708a) positioned at the top (+Y direction) of the electronic device (700) and a lower speaker (708b) positioned at the bottom (-Y direction) of the electronic device (700). In the present disclosure, the speakers (708a, 708b) are illustrated as being positioned within one housing (e.g., the first housing (710) of FIG. 19), but this is an optional structure. For example, the speakers (708a, 708b) may be located within at least one of the first housing (710) or the second housing (720). The configuration of the speakers (708a, 708b) of FIG. 19 may be all or part of the same as the configuration of the audio output module (155) of FIG. 1.

[0157] In one embodiment, the electronic device (700) may include a rear member (770) (or rear case). In one embodiment, the rear member (770) may be disposed within a housing (701) (e.g., a second housing (720)). In one embodiment, the rear member (770) may accommodate at least one antenna (775).

[0158] According to one embodiment, the electronic device (700) may include an antenna (775). The antennas (775a, 775b) may include, for example, an ultra wide band (UWB) antenna (775a), a near field communication (NFC) antenna, a wireless charging antenna, and / or a magnetic secure transmission (MST) antenna (775b). The antenna (775) may, for example, perform short-range communication with an external device or wirelessly transmit and receive power required for charging.

[0159] In one embodiment, an antenna structure may be formed by a portion or a combination of the housing (701). For example, the antenna (775) may include a communication antenna (775c) that is at least partially exposed to the exterior of the electronic device (700) and forms at least a portion of the exterior of the electronic device (700). The communication antenna (775c) may be used for communication with an external electronic device (e.g., Wi-Fi). For example, the communication antenna (775c) may be positioned at the upper portion (771a) or the lower portion (771b) of the rear member (770).

[0160] In the above-described embodiment, a configuration in which a pair of housings (or housing structures) are rotatably coupled by a hinge structure (or hinge assembly) may be exemplified. However, it should be noted that this embodiment does not limit the electronic device according to the embodiment(s) disclosed in the present document. For example, the electronic device according to the embodiment(s) of the present disclosure may include three or more housings, and the "pair of housings" in the above-described embodiment may refer to "two housings rotatably coupled to each other among the three or more housings."

[0161] As described above, the hinge assembly according to the embodiment of the present disclosure (e.g., the hinge assembly (203, 300, 500) of FIGS. 3, 6 and / or 15) and / or the electronic device including the same (e.g., the electronic device (101, 102, 104, 200) of FIGS. 1 to 5) can substantially simultaneously generate static frictional force on the inner and outer surfaces of a hollow shaft (e.g., the hollow shaft (315, 415) of FIG. 6 or 13). For example, when rotatably connecting housings (e.g., the first housing (201) and the second housing (202) of FIG. 2 or 3), the housings can be stably maintained in a folded state or an unfolded state according to a user's request. In one embodiment, by generating static friction simultaneously on the inner and outer surfaces of the hollow shaft, the hinge assembly can provide greater static friction even when manufactured to substantially the same size as a typical hinge structure, and miniaturization of the hinge assembly can be facilitated when providing static friction of substantially the same size.

[0162] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure pertains from the description of the above-described embodiment(s).

[0163] According to one embodiment of the present disclosure, a hinge assembly (e.g., hinge assembly (203, 300, 500) of FIGS. 3, 6 and / or 15) comprises a fixing member (e.g., fixing member (301) of FIG. 6) including a hollow shaft (e.g., hollow shaft (315, 415) of FIG. 6 or FIG. 13) extending along a hinge axis (e.g., hinge axis (H) of FIG. 6), a shaft (e.g., shaft (321) of FIG. 6) at least partially accommodated in the hollow shaft and configured to rotate about the hinge axis within the hollow shaft, a bracket (e.g., bracket (323) of FIG. 6) coupled to surround at least a portion of the hollow shaft and configured to rotate about the hinge axis), and at least one link member (e.g., bracket (323) of FIG. 6) of which a portion is coupled to the shaft and the other portion is fixed to the bracket. In one embodiment, the shaft and the bracket may be configured to rotate together with respect to the hollow shaft by being connected through the at least one link member.

[0164] In one embodiment, the shaft may be configured to rub against an inner surface of the hollow shaft, and the bracket may be configured to rub against an outer surface of the hollow shaft.

[0165] According to one embodiment, the bracket may include a sleeve (e.g., sleeve (323a) of FIG. 6) configured to surround and rotate an outer surface of the hollow shaft, and a first fixed plate (e.g., first fixed plate (323b) of FIG. 6) extending from the sleeve and configured to pivot around the hollow shaft as the sleeve rotates.

[0166] In one embodiment, as the bracket rotates, the sleeve may be configured to rub against the outer surface of the hollow shaft.

[0167] According to one embodiment, the bracket may further include at least one first fastening hole (e.g., the first fastening hole (323c) of FIG. 6) provided in an area facing the link member on the first fixed plate, and at least one second fastening hole (e.g., the second fastening hole (323b) of FIG. 6) arranged adjacent to the at least one first fastening hole.

[0168] According to one embodiment, the at least one link member may include a hub portion (e.g., hub portion (325a) of FIG. 6) that is coupled or fixed to one of the ends of the shaft, and a second fixed plate (e.g., second fixed plate (325b) of FIG. 6) that extends from the hub portion and is positioned to at least partially face the first fixed plate.

[0169] According to one embodiment, the second fixed plate can be fixed to the first fixed plate in a state where it faces the first fixed plate.

[0170] According to one embodiment, the at least one link member may further include a third fastening hole (e.g., the third fastening hole (325c) of FIG. 6) provided to penetrate the second fixed plate.

[0171] According to one embodiment, the hinge assembly as described above may further include a fastening member (e.g., fastening member (399) of FIG. 6) fastened to the first fixing plate through the third fastening hole.

[0172] According to one embodiment, the hollow shaft may include a slit extending along the hinge axis direction (e.g., the second slit (415a) of FIG. 13 or FIG. 14).

[0173] According to one embodiment, the fixing member may include a third fixing plate extending along the hinge axis direction (e.g., the third fixing plate (311) of FIG. 6), and a fixing boss provided at one end of the third fixing plate (e.g., the fixing boss (313) of FIG. 6). In one embodiment, the hollow shaft may be coupled or fixed to the fixing boss.

[0174] According to one embodiment, one end of the shaft may protrude from one end of the hollow shaft, and the other end of the shaft may protrude from the other end of the hollow shaft and protrude toward one side of the fixed boss.

[0175] According to one embodiment, the hollow shaft may include a D-shaped plane (e.g., the second D-shaped plane (415b) of FIG. 14) provided on the outer surface of the portion that is coupled to the fixed boss.

[0176] According to one embodiment of the present disclosure, an electronic device (e.g., an electronic device (101, 102, 104, 200) of FIGS. 1 to 5) includes a first housing (e.g., a first housing (201) of FIG. 2 or 3), a second housing (e.g., a second housing (202) of FIG. 2 or 3) configured to rotate about a hinge axis (e.g., a hinge axis (H) of FIG. 2, FIG. 3, and / or FIG. 6) between a first position facing the first housing and a second position extended by a specified angle from the first position, and a hinge assembly (e.g., a hinge assembly (203, 300, 500) of FIGS. 3, FIG. 6, and / or FIG. 15) that rotatably couples the first housing and the second housing. In one embodiment, the hinge assembly comprises a fixing member (e.g., fixing member (301) of FIG. 6) that is at least partially disposed within one of the first housing and the second housing and includes a hollow shaft extending along the hinge axis direction (e.g., hollow shaft (315, 415) of FIG. 6 or FIG. 13), a shaft (e.g., shaft (321) of FIG. 6) that is at least partially received within the hollow shaft and configured to rotate about the hinge axis within the hollow shaft, a bracket (e.g., bracket (323) of FIG. 6) that is at least partially disposed within the other of the first housing and the second housing and is coupled to surround at least a portion of the hollow shaft and configured to rotate about the hinge axis, and at least one link member (e.g., link member (325)(s) of FIG. 6) that is one portion coupled to the shaft and the other portion fixed to the bracket. In one embodiment, the shaft and the bracket may be configured to rotate together with respect to the hollow shaft by being connected via the at least one link member.

[0177] According to one embodiment, the electronic device as described above may further include an input device (e.g., input device (211a, 211b) of FIG. 3) disposed in the first housing, and an output device (e.g., display (221) of FIG. 3) disposed in the second housing.

[0178] In one embodiment, the input device may include a touchscreen display.

[0179] According to one embodiment, the bracket may include a sleeve (e.g., sleeve (323a) of FIG. 6) configured to rotate and surround an outer surface of the hollow shaft, and a first fixed plate (e.g., first fixed plate (323b) of FIG. 6) extending from the sleeve and configured to rotate around the hollow shaft as the sleeve rotates.

[0180] According to one embodiment, the at least one link member may include a hub portion (e.g., hub portion (325a) of FIG. 6) coupled or fixed to one of the ends of the shaft, and a second fixed plate (e.g., second fixed plate (325b) of FIG. 6) extending from the hub portion and positioned at least partially facing the first fixed plate.

[0181] According to one embodiment, the hinge assembly may further include a fastening member (e.g., fastening member (399) of FIG. 6) that is positioned to penetrate the first fixed plate and the second fixed plate, thereby fastening the first fixed plate and the second fixed plate so as to face each other.

[0182] According to one embodiment, the hollow shaft may include a slit extending along the hinge axis direction (e.g., the second slit (415a) of FIG. 13 or FIG. 14).

[0183] While the present disclosure has been described by way of example with respect to one embodiment, it should be understood that the embodiment is illustrative and not limiting of the present disclosure. It will be apparent to those skilled in the art that various changes in form and detailed construction may be made therein without departing from the overall scope of the present disclosure, including the appended claims and their equivalents. For example, a reinforced coating (e.g., dismond-like carbon (DLC) coating) may be provided for wear prevention in areas that directly rub during rotational or pivotal motion (e.g., the outer surface of the shaft, the inner surface and outer surface of the hollow shaft, and / or the inner surface of the sleeve), and interference phenomena (e.g., scratching of the contact area) during rotational motion can be suppressed by processing the edges of the shaft or hollow shaft into a beveled or curved surface.

Claims

1. In the hinge assembly (203, 300, 500), A fixed member (301) including a hollow shaft (315) extending along the hinge axis (H) direction; A shaft (321) at least partially accommodated in said hollow shaft and configured to rotate about said hinge axis within said hollow shaft; A bracket (323) configured to surround at least a portion of the hollow shaft and rotate around the hinge axis; and At least one link member, a portion of which is coupled to the shaft and another portion of which is fixed to the bracket (325), A hinge assembly wherein the shaft and the bracket are connected through at least one link member so as to rotate together with respect to the hollow shaft.

2. A hinge assembly in which, in the first paragraph, the shaft is configured to rub against the inner surface of the hollow shaft, and the bracket is configured to rub against the outer surface of the hollow shaft.

3. In any one of paragraphs 1 to 2, the bracket, A sleeve (323a) configured to rotate by wrapping around the outer surface of the hollow shaft; and A hinge assembly including a first fixed plate (323b) extending from said sleeve and configured to pivot around said hollow shaft as said sleeve rotates.

4. A hinge assembly in the third paragraph, wherein the sleeve is configured to rub against the outer surface of the hollow shaft as the bracket rotates.

5. In any one of clauses 3 to 4, the bracket, At least one first fastening hole (323c) provided in an area facing the link member on the first fixed plate; and A hinge assembly further comprising at least one second fastening hole (323d) positioned adjacent to the at least one first fastening hole.

6. In any one of clauses 3 to 5, at least one link member, A hub portion (325a) connected or fixed to one of the two ends of the shaft; and A hinge assembly including a second fixed plate (325b) extending from the hub portion and positioned at least partially facing the first fixed plate.

7. In the 6th paragraph, the second fixed plate is a hinge assembly fixed to the first fixed plate in a state facing the first fixed plate.

8. A hinge assembly according to any one of claims 6 to 7, wherein the at least one link member further includes a third fastening hole (325c) provided to penetrate the second fixed plate.

9. In paragraph 8, A hinge assembly further comprising a fastening member (399) fixed to the first fixing plate through the third fastening hole.

10. A hinge assembly according to any one of claims 1 to 9, wherein the hollow shaft includes a slit (415a) extending along the hinge axis direction.

11. In any one of clauses 1 to 10, the fixing member is: A third fixed plate (311) extending along the hinge axis direction; and Including a fixed boss (313) provided at one end of the third fixed plate, The above hollow shaft is a hinge assembly connected or fixed to the above fixed boss.

12. In the 11th paragraph, a hinge assembly in which one end of the shaft protrudes from one end of the hollow shaft, and the other end of the shaft protrudes from the other end of the hollow shaft and protrudes toward one side of the fixed boss.

13. A hinge assembly according to any one of claims 11 to 12, wherein the hollow shaft includes a D-shaped flat surface (415b) provided on the outer surface of a portion connected to the fixed boss.

14. In electronic devices (101, 102, 104, 200), 1st housing (201); A second housing (202) configured to rotate about a hinge axis (H) between a first position facing the first housing and a second position extended from the first position by a specified angle; and An electronic device comprising a hinge assembly (203, 300, 500) that rotatably connects the first housing and the second housing, the hinge device according to any one of claims 1 to 13.

15. In paragraph 14, An input device (211a, 211b) arranged in the first housing; and An electronic device further comprising an output device (221) arranged in the second housing.

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