Rotating assembly, hinge mechanism and intelligent terminal

Abstract

The invention provides a rotating assembly, a hinge mechanism and an intelligent terminal, the rotating assembly comprises a rotating shaft and at least one swing arm assembly, and the swing arm assembly comprises a swing arm, a first elastic assembly and a second elastic assembly; the first elastic assembly and the second elastic assembly provide asynchronous elastic force for the swing arm by arranging different first cam pairs and second cam pairs.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular to a rotating assembly, a hinge mechanism and a smart terminal. Background Art

[0002] The essence of folding and hovering of smart terminals is to use the torque generated by the hinge mechanism to overcome the rebound force of the screen and the weight of the whole device. The common solution in the industry is to use a spring + cam mechanism to provide rotation torque, in which each set of fixed / moving cams has the same appearance, and the corresponding rotation angle and torque curve are consistent.

[0003] In the process of conceiving and implementing the present application, the inventors discovered that there are at least the following problems: in some implementations, the spring force is increased by increasing the spring wire diameter or using a square spring to increase the rotational torque, which can cause serious attenuation of the spring force and increased wear of the cam, thereby causing the smart terminal to lose its hovering ability within its designed service life.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the invention

[0005] The main purpose of the present application is to provide a rotating assembly, a hinge mechanism and a smart terminal, aiming to achieve asynchronous coordination of the swing arm torque peak through differently set first cam pairs and second cam pairs, thereby ensuring the multi-angle hovering performance of the smart terminal.

[0006] The present application provides a rotating assembly, including a rotating shaft and at least one swing arm assembly, wherein the swing arm assembly includes:

[0007] A swing arm, a first elastic component, and a second elastic component. When the swing arm rotates around the rotating shaft, the first elastic component and the second elastic component provide asynchronous elastic force for the swing arm by setting different first cam pairs and second cam pairs.

[0008] Optionally, the swing arm is rotatably sleeved on the middle part of the rotating shaft.

[0009] Optionally, the swing arm is provided with a first cam and a second cam on opposite sides along the length direction of the rotating shaft.

[0010] Optionally, the first elastic component is movably connected to the rotating shaft.

[0011] Optionally, the first elastic component includes a third cam meshing with the first cam.

[0012] Optionally, the first cam and the third cam are combined to form the first cam pair.

[0013] Optionally, the second elastic component is movably connected to the rotating shaft.

[0014] Optionally, the second elastic component includes a fourth cam meshing with the second cam.

[0015] Optionally, the second cam and the fourth cam are combined to form the second cam pair.

[0016] Optionally, the number or density of the first cam teeth of the first cam pair is different from that of the second cam teeth of the second cam pair.

[0017] Optionally, the first cam teeth of the first cam and the second cam teeth of the second cam are arranged in a staggered manner along the axial direction of the rotating shaft.

[0018] Optionally, the first cam teeth of the third cam and the second cam teeth of the fourth cam are arranged in a staggered manner along the axial direction of the rotating shaft.

[0019] Optionally, the first cam tooth of the first cam pair and the second cam tooth of the second cam pair have different shapes.

[0020] Optionally, the start time and / or end time of the torque peak provided by the first cam pair and the second cam pair are different.

[0021] Optionally, a plurality of first cam teeth are spaced apart from each other around the axis of the rotating shaft, and each of the first cam teeth includes a first contact surface, a second contact surface and a first top surface, the first top surface is connected between the first contact surface and the second contact surface, and a first cam groove is formed between the first contact surface of the first cam tooth and the second contact surface of another adjacent first cam tooth.

[0022] Optionally, a plurality of second cam teeth are spaced apart from each other around the axis of the rotating shaft, and each of the second cam teeth includes a third contact surface, a fourth contact surface and a second top surface, the second top surface is connected between the third contact surface and the fourth contact surface, and a second cam groove is formed between the third contact surface of the second cam tooth and the fourth contact surface of another adjacent second cam tooth.

[0023] Optionally, a rectangular coordinate system is defined, wherein the abscissa axis is the angle of the first cam pair or the second cam pair around the circumferential direction of the rotating shaft, and the ordinate axis is the height h of each of the first cam teeth or the second cam teeth.

[0024] Optionally, the value range of the inclination angle α1 of the first contact surface relative to the abscissa axis is obtained by the following formula:

[0025]

[0026] Wherein, h2 is the closing overlap height of the first cam pair; h3 is the minimum closing overlap height of the first cam pair that can achieve self-locking; β1 is the inclination angle of the second contact surface relative to the horizontal axis; w1 is the width of the first top surface; w 1min is the minimum width that can avoid the first top surface from being worn out; θ1 is the hovering design value of the first cam pair; α 1min It is the minimum angle at which the first cam pair can achieve closed self-locking.

[0027] Optionally, the value range of the inclination angle α2 of the third contact surface relative to the abscissa axis is obtained by the following formula:

[0028]

[0029] Among them, the torque peak interval of the second cam pair is (h2 / tanα1-g, θ2), g is the torque peak interval overlap coefficient, θ2 is the hovering design value of the first cam pair, h2 is the closed overlap height of the first cam pair; w2 is the width of the second top surface; when the second top surface contacts the bottom of the second cam groove, the height of the second cam tooth is h4; when the second top surface contacts the bottom of the second cam groove, the distance between one edge of the second top surface and the edge of the fourth contact surface of the adjacent second cam tooth is w3; α 2min It is the minimum angle at which the second cam pair can achieve closed self-locking.

[0030] Optionally, the second top surface of the second cam tooth is inclined.

[0031] Optionally, the inclination direction of the second top surface is downwardly inclined from the third contact surface toward the fourth contact surface.

[0032] Optionally, the fourth contact surface includes a first contact section and a second contact section.

[0033] Optionally, an upper edge of the first contact section is connected to the second top surface.

[0034] Optionally, a lower edge of the first contact section is connected to an upper edge of the second contact section.

[0035] Optionally, a lower edge of the second contact section is connected to a lower edge of the third contact surface of another adjacent second cam tooth.

[0036] Optionally, the second contact section is arranged across a groove bottom of the second cam groove.

[0037] Optionally, an inclination angle of the first contact section is greater than an inclination angle of the second contact section.

[0038] Optionally, the value range of the inclination angle α2 of the third contact surface relative to the abscissa axis is obtained by the following formula:

[0039]

[0040] Among them, the torque peak interval of the second cam pair is (h2 / tanα1-g, θ2), g is the torque peak interval overlap coefficient, θ2 is the hovering design value of the first cam pair; h1 is the height when the first top surface of the first cam pair contacts the bottom of the first cam groove; h2 is the closed overlap height of the first cam pair; w1 is the width of the first top surface; w2 is the width of the second top surface; h4 is the height of the connection between the second top surface and the third contact surface; when the second top surface contacts the second contact section, the distance between one edge of the second top surface and the lower edge of the first contact section of the adjacent second cam tooth is w3, and the distance between the other edge of the second top surface and the edge of the third contact surface of another adjacent second cam tooth is w4; α1 is the closed self-locking angle of the first cam pair; α2 is the closed self-locking angle of the second cam pair; α 2min is the minimum angle at which the second cam pair can achieve closed self-locking; β2 is the inclination angle of the first contact section.

[0041] Optionally, when the first cam is engaged with the third cam, there is a gap between the first top surface and the bottom of the first cam groove.

[0042] Optionally, the swing arm includes an arm portion, a first rotating drum and a second rotating drum.

[0043] Optionally, the first rotating drum and the second rotating drum are fixed to the ends of the arm portion in an opposite arrangement.

[0044] Optionally, the first rotating drum and the second rotating drum are sleeved on the rotating shaft.

[0045] Optionally, the first cam is formed at an end of the first drum.

[0046] Optionally, the second cam is formed at an end of the second drum.

[0047] Optionally, the first elastic component includes a first baffle, a first main spring and a first cam seat.

[0048] Optionally, the first baffle is connected to the rotating shaft.

[0049] Optionally, the first baffle does not rotate relative to the rotating shaft.

[0050] Optionally, the first main spring and the first cam seat are sleeved on the rotating shaft.

[0051] Optionally, two ends of the first main spring abut against or are connected to the first baffle plate and the first cam seat, and the third cam is formed on the first cam seat.

[0052] Optionally, the second elastic component includes a second baffle, a second main spring and a second cam seat.

[0053] Optionally, the second baffle is connected to the rotating shaft.

[0054] Optionally, the second baffle does not rotate relative to the rotating shaft.

[0055] Optionally, the second main spring and the second cam seat are sleeved on the rotating shaft.

[0056] Optionally, two ends of the second main spring abut against or are connected to the second baffle plate and the second cam seat, and the fourth cam is formed on the second cam seat.

[0057] The present application also relates to a hinge mechanism, comprising at least two of any of the above-mentioned rotating components, wherein the at least two rotating components are at least one first rotating component and at least one second rotating component, and the first rotating component and the second rotating component are arranged relative to each other in a direction parallel to the rotation axis.

[0058] Optionally, the rotation axis of the first rotating assembly and the rotation axis of the second rotating assembly are arranged parallel to each other.

[0059] Optionally, a transmission gear is provided on the swing arm of the first rotating assembly and the swing arm of the second rotating assembly.

[0060] Optionally, the transmission gear of the first rotating assembly and the transmission gear of the second rotating assembly are linked to each other via a synchronous gear set.

[0061] Optionally, the first cam seat of the first rotating assembly and the first cam seat of the second rotating assembly are an integral structure.

[0062] Optionally, the second cam seat of the first rotating assembly and the second cam seat of the second rotating assembly are an integral structure.

[0063] Optionally, at least one fifth cam is formed on a side of the first cam seat close to the synchronous gear set.

[0064] Optionally, at least one sixth cam is provided at the end of at least one gear in the synchronous gear set.

[0065] Optionally, the fifth cam and the sixth cam are engaged with each other.

[0066] Optionally, the fifth cam and the sixth cam are combined into a third cam pair, and the gear tooth arrangement of the third cam pair is the same as that of the first cam pair.

[0067] The present application also provides a smart terminal, comprising any of the above-mentioned rotating components and / or hinge mechanisms.

[0068] The rotating assembly of the present application realizes asynchronous coordination of the swing arm torque peak value by asynchronously designing the first cam pair and the second cam pair, that is, the torque peak values ​​provided by the first cam pair and the second cam pair are generated at different times; for example, in the process of the smart terminal with the rotating assembly of the present application from the closed state to the unfolded state, when the first cam pair reaches the torque peak value first, the second cam pair has not yet reached the torque peak value, and at this time the first cam pair provides the torque for the smart terminal to hover; as the smart terminal gradually unfolds, the torque provided by the first cam pair decreases, and the second cam pair reaches the torque peak value, and at this time the second cam pair provides the torque for the smart terminal to hover. The technical solution of the present application can solve the technical problems of severe spring elastic force attenuation and aggravated cam wear, and can realize the multi-angle free hovering of the smart terminal.

[0069] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specifically cites the preferred embodiments and describes them in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0071] Figure 1 It is a schematic diagram of the hardware structure of an intelligent terminal for implementing various embodiments of the present application;

[0072] Figure 2 It is a communication network system architecture diagram provided by an embodiment of the present application;

[0073] Figure 3 is a structural schematic diagram of the hinge mechanism of the first embodiment of the present application;

[0074] Figure 4 is a schematic diagram of the disassembled structure of the hinge mechanism of the first embodiment of the present application;

[0075] Figure 5 is a schematic diagram of the disassembled structure of the hinge mechanism of the first embodiment of the present application from another perspective;

[0076] Figure 6 is a schematic structural diagram of a first cam seat of a first embodiment of the present application;

[0077] Figure 7 is a structural schematic diagram of the second cam seat of the first embodiment of the present application;

[0078] Figure 8 is a schematic structural diagram of a swing arm of the first embodiment of the present application;

[0079] Fig. 9 is a structural schematic diagram of the swing arm of the first embodiment of the present application from another perspective;

[0080] Fig.10 is a schematic diagram of the first cam pair of the first embodiment of the present application being deployed in a circumferential direction;

[0081] Fig.11 is a schematic diagram of the second cam pair of the first embodiment of the present application being deployed in a circumferential direction;

[0082] Figure 12 to Figure 14 is a schematic diagram of the hinge mechanism of the first embodiment of the present application from a closed state to an unfolded state;

[0083] Fig.15 yes Fig.12 An enlarged structural schematic diagram of the hinge mechanism at the first cam pair is shown;

[0084] Fig.16 yes Fig.12 An enlarged structural schematic diagram of the hinge mechanism at the second cam pair is shown;

[0085] Fig.17 yes Fig.13 An enlarged structural schematic diagram of the hinge mechanism at the first cam pair is shown;

[0086] Fig.18 yes Fig.13 An enlarged structural schematic diagram of the hinge mechanism at the second cam pair is shown;

[0087] Fig.19 yes Fig.14 An enlarged structural schematic diagram of the hinge mechanism at the first cam pair is shown;

[0088] Fig. 20 yes Fig.14 An enlarged structural schematic diagram of the hinge mechanism at the second cam pair is shown;

[0089] Fig.21is a coordinate diagram of a plurality of first cam teeth of the first cam of the present application unfolded around the circumferential direction;

[0090] Fig. 22 yes Fig.21 A coordinate diagram showing the cooperation between the first cam tooth of the first cam and the first cam tooth of the third cam;

[0091] Fig.23 is a coordinate diagram of the cooperation between the second cam tooth of the second cam and the second cam tooth of the fourth cam in the first embodiment of the present application;

[0092] Fig.24 yes Fig.23 A coordinate diagram showing the second cam tooth of the second cam and the second cam tooth of the fourth cam after rotation;

[0093] Fig.25 is a coordinate diagram of the cooperation between the second cam tooth of the second cam and the second cam tooth of the fourth cam in the second embodiment of the present application;

[0094] Fig.26 yes Fig.25 The coordinate diagram shown is of the second cam tooth of the second cam and the second cam tooth of the fourth cam after rotation.

[0095] The realization of the purpose, functional features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The above-mentioned drawings have shown clear embodiments of this application, which will be described in more detail later. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0096] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0097] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element. Optionally, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context in the specific embodiment.

[0098] It should be understood that, although the terms first, second, third, etc. may be used to describe various information in this article, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this article, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein can be interpreted as "at the time of..." or "when..." or "in response to determination". Furthermore, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising", "including" indicate that there are described features, steps, operations, elements, components, projects, kinds, and / or groups, but do not exclude the existence, occurrence or addition of one or more other features, steps, operations, elements, components, projects, kinds, and / or groups. The terms "or", "and / or", "including at least one of the following" etc. used in this application can be interpreted as inclusive, or mean any one or any combination. For example, “comprising at least one of the following: A, B, C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”, and for another example, “A, B or C” or “A, B and / or C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”. An exception to this definition will only occur when a combination of elements, functions, steps or operations are inherently mutually exclusive in some manner.

[0099] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0100] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0101] In the subsequent description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present application and have no specific meaning. Therefore, "module", "component" or "unit" can be used in a mixed manner.

[0102] The smart terminal may be implemented in various forms. For example, the smart terminal described in this application may include smart terminals such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminals such as digital TVs and desktop computers.

[0103] The subsequent description will be illustrated by taking a smart terminal as an example, and those skilled in the art will understand that, in addition to components specifically used for mobile purposes, the construction according to the embodiments of the present application can also be applied to fixed-type terminals.

[0104] Figure 1 This is a schematic diagram of the hardware structure of a smart terminal that implements each embodiment of the present application. Figure 1 , which is a schematic diagram of the hardware structure of a smart terminal for implementing various embodiments of the present application, the smart terminal 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, A / V (audio / video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111 and other components. Those skilled in the art can understand that Figure 1 The structure of the smart terminal shown in the figure does not constitute a limitation on the smart terminal. The smart terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0105] Combine the following Figure 1 A detailed introduction to each component of the smart terminal:

[0106] The radio frequency unit 101 can be used for receiving and sending signals during information transmission or communication. Specifically, after receiving the downlink information of the base station, it is sent to the processor 110 for processing; in addition, the uplink data is sent to the base station. Generally, the radio frequency unit 101 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc. In addition, the radio frequency unit 101 can also communicate with the network and other devices through wireless communication. The above-mentioned wireless communication can use any communication standard or protocol, including but not limited to GSM (Global System of Mobilecommunication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution), 5G and 6G, etc.

[0107] WiFi is a short-range wireless transmission technology. The smart terminal can help users send and receive emails, browse web pages, and access streaming media through the WiFi module 102. It provides users with wireless broadband Internet access. Figure 1 The WiFi module 102 is shown, but it is understandable that it is not a necessary component of the smart terminal and can be omitted as needed without changing the essence of the invention.

[0108] The audio output unit 103 can convert the audio data received by the RF unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output it as sound when the smart terminal 100 is in a call signal receiving mode, a call mode, a recording mode, a voice recognition mode, a broadcast receiving mode, etc. Moreover, the audio output unit 103 can also provide audio output related to a specific function performed by the smart terminal 100 (for example, a call signal receiving sound, a message receiving sound, etc.). The audio output unit 103 may include a speaker, a buzzer, etc.

[0109] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a graphics processor (GPU) 1041 and a microphone 1042, and the graphics processor 1041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The processed image frame can be displayed on the display unit 106. The image frame processed by the graphics processor 1041 can be stored in the memory 109 (or other storage medium) or sent via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) via the microphone 1042 in a telephone call mode, a recording mode, a voice recognition mode, and other operating modes, and can process such sound into audio data. The processed audio (voice) data can be converted into a format output that can be sent to a mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode. The microphone 1042 can implement various types of noise elimination (or suppression) algorithms to eliminate (or suppress) noise or interference generated in the process of receiving and sending audio signals.

[0110] The smart terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. Optionally, the ambient light sensor can adjust the brightness of the panel 1061 according to the brightness of the ambient light, and the proximity sensor can turn off the panel 1061 and / or the backlight when the smart terminal 100 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors that can also be configured on the mobile phone, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., they will not be repeated here.

[0111] The display unit 106 is used to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0112] The user input unit 107 can be used to receive input digital or character information, and to generate key signal input related to the user settings and function control of the intelligent terminal. Optionally, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also known as a touch screen, can collect the user's touch operation on or near it (such as the user's operation on the touch panel 1071 or near the touch panel 1071 using any suitable object or accessory such as a finger, stylus, etc.), and drive the corresponding connection device according to a pre-set program. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Optionally, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into the touch point coordinates, and then sends it to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 1071, the user input unit 107 may further include other input devices 1072. Optionally, the other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, a function key (such as a volume control key, a switch key, etc.), a trackball, a mouse, a joystick, etc., which are not specifically limited here.

[0113] Optionally, the touch panel 1071 may cover the display panel 1061. When the touch panel 1071 detects a touch operation on or near it, it transmits it to the processor 110 to determine the type of touch event, and then the processor 110 provides a corresponding visual output on the panel 1061 according to the type of touch event. Figure 1 In the figure, the touch panel 1071 and the display panel 1061 are used as two independent components to realize the input and output functions of the smart terminal. However, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated to realize the input and output functions of the smart terminal, which is not limited here.

[0114] The interface unit 108 is used as an interface through which at least one external device can be connected to the smart terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, etc. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the smart terminal 100 or may be used to transmit data between the smart terminal 100 and an external device.

[0115] The memory 109 can be used to store software programs and various data. The memory 109 can mainly include a program storage area and a data storage area. Optionally, the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory 109 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0116] The processor 110 is the control center of the smart terminal. It uses various interfaces and lines to connect various parts of the entire smart terminal. It executes various functions of the smart terminal and processes data by running or executing software programs and / or modules stored in the memory 109, and calling data stored in the memory 109, so as to monitor the smart terminal as a whole. The processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor. Optionally, the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 110.

[0117] The intelligent terminal 100 may also include a power supply 111 (such as a battery) for supplying power to various components. Preferably, the power supply 111 may be logically connected to the processor 110 through a power management system, thereby managing functions such as charging, discharging, and power consumption through the power management system.

[0118] although Figure 1 Not shown, the smart terminal 100 may also include a Bluetooth module, etc., which will not be described in detail here.

[0119] To facilitate understanding of the embodiments of the present application, the communication network system on which the smart terminal of the present application is based is described below.

[0120] See also Figure 2 , Figure 2 This is a communication network system architecture diagram provided in an embodiment of the present application. The communication network system is an LTE system of universal mobile communication technology. The LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203 and an operator's IP service 204 that are connected in sequence.

[0121] Optionally, UE201 may be the above-mentioned terminal 100, which will not be described in detail here.

[0122] E-UTRAN 202 includes eNodeB 2021 and other eNodeBs 2022 , etc. Optionally, eNodeB 2021 may be connected to other eNodeBs 2022 via a backhaul (eg, an X2 interface), and eNodeB 2021 is connected to EPC 203 , and eNodeB 2021 may provide UE 201 with access to EPC 203 .

[0123] EPC203 may include MME (Mobility Management Entity) 2031, HSS (Home Subscriber Server) 2032, other MMEs 2033, SGW (Serving Gate Way) 2034, PGW (PDN Gate Way) 2035 and PCRF (Policy and Charging Rules Function) 2036, etc. Optionally, MME 2031 is a control node that processes signaling between UE 201 and EPC 203, and provides bearer and connection management. HSS 2032 is used to provide some registers to manage functions such as home location register (not shown in the figure), and store some user-specific information such as service features and data rates. All user data can be sent through SGW2034, PGW2035 can provide IP address allocation and other functions for UE 201, PCRF2036 is the policy and charging control policy decision point for service data flow and IP bearer resources, which selects and provides available policy and charging control decisions for the policy and charging execution function unit (not shown in the figure).

[0124] The IP service 204 may include the Internet, an intranet, an IMS (IP Multimedia Subsystem) or other IP services.

[0125] Although the above introduction takes the LTE system as an example, those skilled in the art should know that the present application is not only applicable to the LTE system, but also to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, 5G and future new network systems (such as 6G), etc., without limitation here.

[0126] Based on the above-mentioned smart terminal hardware structure and communication network system, various embodiments of the present application are proposed.

[0127] First embodiment

[0128] Figure 3 is a structural schematic diagram of the hinge mechanism of the first embodiment of the present application, Figure 4 is a schematic diagram of the disassembled structure of the hinge mechanism of the first embodiment of the present application, Figure 5 FIG. 1 is a schematic diagram of the split structure of the hinge mechanism of the first embodiment of the present application from another perspective. Figure 3 , Figure 4 and Figure 5 As shown, the hinge mechanism includes a rotating assembly, the rotating assembly includes a rotating shaft 11 and at least one swing arm assembly, and the swing arm assembly includes:

[0129] The swing arm 12, the first elastic component 13, and the second elastic component 14, when the swing arm 12 rotates around the rotating shaft 11, the first elastic component 13 and the second elastic component 14 provide asynchronous elastic force for the swing arm 12 by setting different first cam pairs and second cam pairs.

[0130] The rotating assembly of the present application realizes asynchronous coordination of the torque peak of the swing arm 12 by asynchronously designing the first cam pair and the second cam pair, that is, the torque peaks provided by the first cam pair and the second cam pair are generated at different times; for example, in the process of the smart terminal with the rotating assembly of the present application from the closed state to the unfolded state, when the first cam pair reaches the torque peak first, the second cam pair has not yet reached the torque peak, and at this time the first cam pair provides the torque for the smart terminal to hover; as the smart terminal gradually unfolds, the torque provided by the first cam pair decreases, and the second cam pair reaches the torque peak, and at this time the second cam pair provides the torque for the smart terminal to hover. The technical solution of the present application solves the technical problems of severe spring force attenuation and aggravated cam wear, and can realize multi-angle free hovering of the smart terminal.

[0131] Optionally, the swing arm 12 is rotatably sleeved on the middle part of the rotating shaft 11, and the swing arm 12 is provided with a first cam 121 and a second cam 122 on opposite sides along the length direction of the rotating shaft 11;

[0132] The first elastic component 13 is movably connected to the rotating shaft 11. The first elastic component 13 includes a third cam 131 meshed with the first cam 121. The first cam 121 and the third cam 131 are combined into a first cam pair.

[0133] The second elastic component 14 is movably connected to the rotating shaft 11 . The second elastic component 14 includes a fourth cam 141 meshed with the second cam 122 . The second cam 122 and the fourth cam 141 are combined into a second cam pair.

[0134] Optionally, the density or number of the first cam teeth 1211 of the first cam pair is different from that of the second cam teeth 1221 of the second cam pair.

[0135] Optionally, the first cam teeth 1211 of the first cam and the second cam teeth 1221 of the second cam are arranged in a staggered manner along the axial direction of the rotating shaft 11 .

[0136] Optionally, the first cam teeth 1211 of the third cam 131 and the second cam teeth 1221 of the fourth cam 141 are arranged in a staggered manner along the axial direction of the rotating shaft 11 .

[0137] Optionally, the first cam teeth 1211 of the first cam and the second cam teeth 1221 of the second cam have different shapes along the rotating shaft 11 .

[0138] Optionally, the size of the second cam tooth 1221 is different from the size of the first cam tooth 1211, for example, the volume of the second cam tooth 1221 of the second cam pair is different from the volume of the first cam tooth 1211 of the first cam tooth pair, or the inclination angle of the first contact surface 1211a of the first cam tooth 1211 is different from the inclination angle of the third contact surface 1221a of the second cam tooth 1221, or the inclination angle of the second contact surface 1211b of the first cam tooth 1211 is different from the inclination angle of the fourth contact surface 1221b of the second cam tooth 1221. For details, please refer to the following Fig.10 and Fig.11 ;

[0139] When the swing arm 12 rotates around the rotating shaft 11 , the first cam 121 squeezes the third cam 131 , and the second cam 122 squeezes the fourth cam 141 , so that the first elastic component 13 and the second elastic component 14 are compressed to provide elastic force for the swing arm 12 .

[0140] Optionally, a size of the first cam tooth 1211 is different from a size of the second cam tooth 1221 , for example, the size of the first cam tooth 1211 is larger than or smaller than the size of the second cam tooth 1221 .

[0141] Optionally, Figure 6 This is a schematic diagram of the structure of the first cam seat of the first embodiment of the present application. Figures 3 to 6 The first elastic component 13 includes a first baffle 132, a first main spring 133 and a first cam seat 134. The first baffle 132 is connected to the end of the rotating shaft 11. The first baffle 132 does not rotate relative to the rotating shaft 11. The first main spring 133 and the first cam seat 134 are sleeved on the rotating shaft 11. Both ends of the first main spring 133 abut against or are connected to the first baffle 132 and the first cam seat 134. The third cam 131 is formed on the first cam seat 134. When the swing arm 12 rotates around the rotating shaft 11, the first cam 121 rotates accordingly and then pushes the first cam seat 134 to compress the first main spring 133.

[0142] Optionally, Figure 7 This is a schematic diagram of the structure of the second cam seat of the first embodiment of the present application. Figures 3 to 7 The second elastic component 14 includes a second baffle 142, a second main spring 143 and a second cam seat 144. The second baffle 142 is connected to the other end of the rotating shaft 11 away from the first baffle 132. The second baffle 142 does not rotate relative to the rotating shaft 11. The second main spring 143 and the second cam seat 144 are sleeved on the rotating shaft 11. Both ends of the second main spring 143 abut against or are connected to the second baffle 142 and the second cam seat 144. The fourth cam 141 is formed on the second cam seat 144. When the swing arm 12 rotates around the rotating shaft 11, the second cam 122 rotates accordingly and then pushes the second cam seat 144 to compress the second main spring 143.

[0143] Alternatively, if Figure 3 and Figure 4 As shown, the hinge mechanism includes at least two rotating shafts 11 and at least two swing arms 12, the multiple rotating shafts 11 are arranged parallel to each other, the first cam seat 134 and the second cam seat 144 are sleeved on each rotating shaft 11, at least one swing arm 12 is sleeved on each rotating shaft 11, the two ends of each rotating shaft 11 are connected to the first baffle plate 132 and the second baffle plate 142, and at least one first main spring 133 and at least one second main spring 143 are sleeved on each rotating shaft 11. In this embodiment, the first cam seat 134, the second cam seat 144, and the swing arm 12 are all provided with an axis hole for each rotating shaft 11 to pass through.

[0144] Optionally, the hinge mechanism includes at least two of the above-mentioned rotating components, and the at least two rotating components are at least one first rotating component and at least one second rotating component, and the first rotating component and the second rotating component are arranged opposite to each other in a direction parallel to the rotating shaft 11.

[0145] Optionally, the rotating shaft 11 of the first rotating component and the rotating shaft 11 of the second rotating component are arranged parallel to each other, and the swing arm 12 of the first rotating component and the swing arm 12 of the second rotating component are both provided with a transmission gear 123, and the transmission gear 123 of the first rotating component and the transmission gear 123 of the second rotating component are linked and connected through a synchronous gear set 16.

[0146] Optionally, the first cam seat 134 of the first rotating assembly and the first cam seat 134 of the second rotating assembly are an integral structure.

[0147] Optionally, the second cam seat 144 of the first rotating assembly and the second cam seat 144 of the second rotating assembly are an integral structure.

[0148] Optionally, at least one fifth cam 135 is formed on one side of the first cam seat 134 close to the synchronous gear set 16, and a sixth cam 163 is provided at the end of at least one gear in the synchronous gear set 16, and the fifth cam 135 and the sixth cam 163 are meshed with each other; the fifth cam 135 and the sixth cam 163 are combined into a third cam pair, and the gear tooth setting of the third cam pair is the same as that of the first cam pair.

[0149] Optionally, Figure 8 is a schematic structural diagram of the swing arm of the first embodiment of the present application, Fig. 9 This is a structural diagram of the swing arm of this application from another perspective, please refer to Figures 3 to 9 The hinge mechanism further includes a bracket 15, which is sleeved on each rotating shaft 11 and located between the first cam seat 134 and the second cam seat 144. The synchronous gear set 16 is rotatably connected between the bracket 15 and the first cam seat 134. The synchronous gear set 16 is meshed with the transmission gears 123 on the two swing arms 12. For example, the synchronous gear set 16 includes an even number of gears, and the outermost gears are meshed with the transmission gears 123 on the two swing arms 12. When one swing arm 12 rotates around the rotating shaft 11, the transmission gear 123 drives the synchronous gear set 16 to rotate, and the synchronous gear set 16 drives the other swing arm 12 to rotate synchronously around the other rotating shaft 11.

[0150] Optionally, the synchronous gear set 16 includes a first gear 161 and a second gear 162 meshing with each other, the first gear 161 and the second gear 162 are arranged side by side, the first gear 161 meshes with the transmission gear 123 of one swing arm 12, and the second gear 162 meshes with the transmission gear 123 of another swing arm 12. In this embodiment, connecting shafts are provided at both ends of the first gear 161 and the second gear 162, and the connecting shafts are arranged parallel to the rotating shaft 11, and two connecting holes matching with the connecting shafts are provided on the bracket 15 and the first cam seat 134.

[0151] Alternatively, if Figure 4 and Figure 6 As shown, the synchronous gear set 16 is arranged between the first cam seat 134 and the bracket 15, a fifth cam 135 is formed on the side of the first cam seat 134 close to the gear set 16, and a sixth cam 163 is arranged at the end of the gear set 16 away from the bracket 15. In this embodiment, the first cam seat 134 is provided with two fifth cams 135 corresponding to the first gear 161 and the second gear 162, and a sixth cam 163 is arranged at the end of the first gear 161 and the second gear 162. The fifth cam 135 and the sixth cam 163 are combined into a third cam pair, and the gear teeth of the third cam pair are arranged the same as those of the first cam pair.

[0152] Optionally, the number of the third cam teeth of the third cam pair is the same as the number of the first cam teeth 1211 of the first cam pair.

[0153] Alternatively, if Figure 8 and Fig. 9 As shown, the swing arm 12 includes an arm portion 124, a first rotating cylinder 125 and a second rotating cylinder 126, the first rotating cylinder 125 and the second rotating cylinder 126 are fixed to the ends of the arm portion 124 in an opposite arrangement, the first rotating cylinder 125 and the second rotating cylinder 126 are sleeved on the rotating shaft 11, the first cam 121 is formed at the end of the first rotating cylinder 125 away from the second rotating cylinder 126, the second cam 122 is formed at the end of the second rotating cylinder 126 away from the first rotating cylinder 125, and the transmission gear 123 is formed on the side wall of the first rotating cylinder 125; at least two connecting blocks 151 are provided on the bracket 15, each connecting block 151 is sleeved on each rotating shaft 11, and each connecting block 151 is arranged between the first rotating cylinder 125 and the second rotating cylinder 126. In this embodiment, each connecting block 151 is provided with an axial hole for the rotating shaft 11 to pass through.

[0154] Alternatively, if Figure 4 and Figure 5 As shown, the first elastic component 13 further includes at least one first auxiliary spring 136, the first auxiliary spring 136 is located between two adjacent rotating shafts 11, and both ends of the first auxiliary spring 136 abut against or are connected to the first baffle plate 132 and the first cam seat 134. In this embodiment, a first guide post is provided on one side of the first cam seat 134 close to the first baffle plate 132, and a second guide post is provided on one side of the first baffle plate 132 close to the first cam seat 134, one end of the first auxiliary spring 136 is sleeved on the first guide post, and the other end of the first auxiliary spring 136 is sleeved on the second guide post.

[0155] Alternatively, if Figure 4 and Figure 5 As shown, the second elastic component 14 further includes at least one second auxiliary spring 145, the second auxiliary spring 145 is located between two adjacent rotating shafts 11, and both ends of the second auxiliary spring 145 abut against or are connected to the second baffle plate 142 and the second cam seat 144. In this embodiment, a third guide post is provided on the side of the second cam seat 144 close to the second baffle plate 142, and a fourth guide post is provided on the side of the second baffle plate 142 close to the second cam seat 144. One end of the second auxiliary spring 145 is sleeved on the third guide post, and the other end of the second auxiliary spring 145 is sleeved on the fourth guide post.

[0156] Optionally, the hinge mechanism further comprises a retaining spring 17 , which is provided with a slot 104 for engaging with the rotating shaft 11 , and the rotating shaft 11 is provided with an annular groove 101 , and the retaining spring 17 engages with the annular groove 101 of the rotating shaft 11 through the slot 104 , and the first baffle 132 abuts against the retaining spring 17 .

[0157] Optionally, a limit block 112 is provided at the end of the rotating shaft 11 away from the retaining spring 17 , the outer diameter of the limit block 112 is larger than the diameter of the rotating shaft 11 , and the second baffle 142 abuts against the limit block 112 .

[0158] Optionally, see Figures 6 to 9 , the number of the second cam teeth 1221 of the second cam pair is less than the number of the first cam teeth 1211 of the first cam pair, for example, the number of the second cam teeth 1221 of the second cam 122 and the fourth cam 141 is 2, and the number of the first cam teeth 1211 of the first cam 121 and the third cam 131 is 3, or the number of the second cam teeth 1221 of the second cam 122 and the fourth cam 141 is 3, and the number of the first cam teeth 1211 of the first cam 121 and the third cam 131 is 4, but it is not limited thereto. In this embodiment, the number of the second cam teeth 1221 of the second cam 122 and the fourth cam 141 is the same; the number of the first cam teeth 1211 of the first cam 121 and the third cam 131 is the same.

[0159] In another preferred embodiment, the number of the second cam teeth 1221 of the second cam pair is greater than the number of the first cam teeth 1211 of the first cam pair, for example, the number of the second cam teeth 1221 of the second cam 122 and the fourth cam 141 is 3, and the number of the first cam teeth 1211 of the first cam 121 and the third cam 131 is 2, or the number of the second cam teeth 1221 of the second cam 122 and the fourth cam 141 is 4, and the number of the first cam teeth 1211 of the first cam 121 and the third cam 131 is 3, but it is not limited thereto. In this embodiment, the number of the second cam teeth 1221 of the second cam 122 and the fourth cam 141 is the same; the number of the first cam teeth 1211 of the first cam 121 and the third cam 131 is the same.

[0160] Optionally, Fig.10 Schematic diagram of the first cam pair of the first embodiment of the present application unfolded in the circumferential direction, as shown in FIG. Fig.10 As shown, a plurality of first cam teeth 1211 are arranged at intervals around the axis of the rotating shaft 11, and a first cam groove 102 is formed between two adjacent first cam teeth 1211. Each first cam tooth 1211 includes a first contact surface 1211a, a second contact surface 1211b and a first top surface 1211c. The first top surface 1211c is connected between the first contact surface 1211a and the second contact surface 1211b. A first cam groove 102 is formed between the first contact surface 1211a of the first cam tooth 1211 and the second contact surface 1211b of another adjacent first cam tooth 1211. When the two swing arms 12 rotate from the closed state to the unfolded state (corresponding to the intelligent terminal flipping from the closed state to the unfolded state), the contact area of ​​the first contact surfaces 1211a of the two first cam teeth 1211 of the first cam pair that are meshed with each other gradually decreases, and at this time, the torque provided by the first cam pair gradually increases until the second contact surfaces 1211b of the two first cam teeth 1211 are in contact.

[0161] Optionally, the first top surface 1211c is a plane, and the axis of the rotating shaft 11 is perpendicular to the first top surface 1211c. The first cam tooth 1211 of the present application has no small hovering slope, and the hovering torque is provided by the first cam pair and the second cam pair.

[0162] Optionally, Fig.11 Schematic diagram of the second cam pair of the first embodiment of the present application unfolded in the circumferential direction, as shown in FIG. Fig.11 As shown, a plurality of second cam teeth 1221 are arranged at intervals around the axis of the rotating shaft 11, and a second cam groove 103 is formed between two adjacent second cam teeth 1221. Each second cam tooth 1221 includes a third contact surface 1221a, a fourth contact surface 1221b and a second top surface 1221c. The second top surface 1221c is connected between the third contact surface 1221a and the fourth contact surface 1221b. A second cam groove 103 is formed between the third contact surface 1221a of the second cam tooth 1221 and the fourth contact surface 1221b of another adjacent second cam tooth 1221. When the two swing arms 12 rotate from a closed state to an expanded state (corresponding to the smart terminal flipping from a closed state to an expanded state), the contact area of ​​the first contact surface 1211a of the two mutually meshing first cam teeth 1211 gradually decreases. At this time, the torque provided by the first cam pair gradually increases, and the third contact surfaces 1221a of the two mutually meshing second cam teeth 1221 of the second cam pair are not in contact. When the first cam pair reaches the torque peak, the second cam pair begins to provide torque.

[0163] Optionally, the second top surface 1221c is a plane, and the axis of the rotating shaft 11 is perpendicular to the second top surface. The second cam tooth 1221 of the present application has no hovering small slope, and the hovering torque is provided by the first cam pair and the second cam pair.

[0164] Optionally, the inclination angle of the first contact surface 1211a is different from the inclination angle of the third contact surface 1221a. The inclination angle of the first contact surface 1211a is the following first cam pair closed self-locking angle α1, that is, the angle between the first contact surface 1211a and the x-axis is α1; the inclination angle of the third contact surface 1221a is the following second cam pair closed self-locking angle α2, that is, the angle between the third contact surface 1221a and the x-axis is α2. The size of the second cam tooth provided in the present application is different from that of the first cam tooth. By asynchronously designing the first cam pair and the second cam pair, asynchronous coordination of the torque peak of the swing arm 12 is achieved, that is, the torque peaks provided by the first cam pair and the second cam pair are generated at different times, and there is no need to increase the elastic force of the spring, so that the free hovering of the smart terminal is achieved without sacrificing the life of the hinge mechanism.

[0165] Optionally, the inclination angle of the second contact surface 1211b is different from the inclination angle of the fourth contact surface 1221b. The inclination angle of the second contact surface 1211b is the following flattening self-locking angle β1 of the first cam pair, that is, the angle between the second contact surface 1211b and the x-axis is β1; the inclination angle of the fourth contact surface 1221b is the following flattening self-locking angle β2 of the second cam pair, that is, the angle between the fourth contact surface 1221b and the x-axis is β2. The size of the second cam tooth provided in the present application is different from that of the first cam tooth. By asynchronously designing the first cam pair and the second cam pair, the asynchronous coordination of the torque peak of the swing arm 12 is achieved, that is, the torque peaks provided by the first cam pair and the second cam pair are generated at different times, and there is no need to increase the elastic force of the spring, so that the free hovering of the smart terminal is achieved without sacrificing the life of the hinge mechanism.

[0166] Optionally, when the first cam 121 is engaged with the third cam 131, there is a gap between the first top surface 1211c and the bottom of the first cam groove 102, which can ensure that when the two swing arms 12 are in a closed state, the first contact surfaces 1211a of the two engaged first cam teeth 1211 are in contact.

[0167] Optionally, the gap is 0.05 mm to 0.1 mm.

[0168] Optionally, Figure 12 to Figure 14 is a schematic diagram of the hinge mechanism of the first embodiment of the present application from a closed state to an unfolded state, Fig.15 yes Fig.12 The enlarged structural diagram of the hinge mechanism at the first cam pair is shown in FIG. Fig.16 yes Fig.12 The enlarged structural diagram of the hinge mechanism at the second cam pair is shown in FIG. Fig.17 yes Fig.13 The enlarged structural diagram of the hinge mechanism at the first cam pair is shown in FIG. Fig.18 yes Fig.13 The enlarged structural diagram of the hinge mechanism at the second cam pair is shown in FIG. Fig.19 yes Fig.14 The enlarged structural diagram of the hinge mechanism at the first cam pair is shown in FIG. Fig. 20 yes Fig.14 Please refer to the enlarged structural diagram of the hinge mechanism at the second cam pair shown in FIG. Figures 12 to 20 When the swing arm 12 is in the closed state, the first contact surfaces 1211a of the two adjacent first cam teeth 1211 of the first cam pair are in contact, and the third contact surfaces 1221a of the two adjacent second cam teeth 1221 of the second cam pair are not in contact. Fig.15 and Fig.16As shown; when the swing arm 12 is unfolded to a certain angle (the angle is, for example, 30°-60°), the contact area of ​​the two first contact surfaces 1211a of the first cam pair is reduced. At this time, the first cam pair provides a larger hovering torque, and the third contact surfaces 1221a of the two adjacent second cam teeth 1221 of the second cam pair begin to contact, as shown in FIG. Fig.17 and Fig.18 When the swing arm 12 is fully extended (the two swing arms 12 are extended to a state parallel to each other), the second contact surfaces 1211b of the two adjacent first cam teeth 1211 of the first cam pair are in contact, and the second top surfaces 1221c of the two adjacent second cam teeth 1221 of the second cam pair are in contact, as shown in FIG. Fig.19 and Fig. 20 The present application realizes asynchronous coordination of the torque peak of the swing arm 12 by asynchronously designing the first cam pair and the second cam pair.

[0169] Optionally, Fig.21 is a coordinate diagram of a plurality of first cam teeth of the first cam of the first embodiment of the present application unfolded around the circumferential direction, Fig. 22 yes Fig.21 Please refer to the coordinate diagram of the first cam tooth of the first cam and the first cam tooth of the third cam. Figure 21 to Figure 22 , where the x-axis (abscissa axis) is a circular angle of 360°, and the y-axis (ordinate axis) is the height of the first cam tooth 1211 and the second cam tooth 1221; when the unfolded circular radius is 1, its circumference is 2πr, and its circumference corresponds to 360°, that is, 2πr=360°. The height h of the first cam tooth 1211 and the second cam tooth 1221 is s The height h of the first cam tooth 1211 and the second cam tooth 1221 in the developed coordinate system z There are the following relationships:

[0170]

[0171] The height h1 of the first cam tooth 1211 is determined by the space and stroke of the springs (the first main spring 133, the second main spring 143, the first auxiliary spring 136 and the second auxiliary spring 145). To ensure that the first cam pair keeps the first contact surface 1211a in contact in the closed state, the first top surface 1211c of the first cam pair does not contact the bottom of the first cam groove 102 when closed. The actual design reserves a gap of 0.05-0.1mm, that is, the distance between the first top surface 1211c of the first cam 121 and the bottom of the first cam groove 102 of the third cam 131 is 0.05-0.1mm. Therefore, the closing overlap height of the first cam pair is designed to be h2∈(9 / π, 18 / π). If the overlap of the first cam pair is too large, it will cause serious wear on the first contact surface 1211a. If it is too small, it will cause insufficient overlap and affect the reliability of the self-locking when unfolded. Therefore, the overlap is designed to be 0.15mm-0.2mm, corresponding to Fig. 22 Then it is h3∈(27 / π, 36 / π) (the range of h3 is obtained by substituting h3=0.15mm-0.2mm into the above formula to obtain (27 / π, 36 / π)), that is, h3 is the minimum closing overlap height of the first cam pair that can achieve self-locking.

[0172] The closing self-locking angle of the first cam pair is α1, that is, the angle between the first contact surface 1211a and the x-axis is α1, and the flattening self-locking angle of the first cam pair is β1, that is, the angle between the second contact surface 1211b and the x-axis is β1. The design requirements for the hovering interval of the smart terminal are (θ1, θ2); combined with the rebound tension, screen size, and weight of the specific smart terminal, the minimum closing angle α1min can be determined; the self-locking angle design of the smart terminal refers to the weight and size of the whole machine. If the angle is too large, the flattening to closing feel will be poor, and if the angle is too small, the self-locking will be insufficient. Therefore, the β1 design value should just meet the self-locking requirements. Based on the above data, the size w1 of the first top surface 1211c of the first cam pair is calculated, and the calculation results are:

[0173] w1=90-h2 / tanα1-h3 / tanβ1

[0174] If w1 is too small, the first top surface 1211c will be more worn, affecting the hovering effect. Therefore, w1 needs to be greater than w1min, and we can get:

[0175]

[0176] The design requirement of the hovering interval of the intelligent terminal is (θ1, θ2). The first cam pair is in contact with the first contact surface 1211a in the hovering section. Therefore, it can be obtained that:

[0177]

[0178] Combined with the above calculations, the value range of α1 can be determined:

[0179]

[0180] Wherein, h2 is the closing overlap height of the first cam pair; h3 is the minimum closing overlap height of the first cam pair that can achieve self-locking; β1 is the inclination angle of the second contact surface 1211b relative to the horizontal axis; w1 is the width of the first top surface 1211c; w 1min is the minimum width to avoid aggravated wear of the first top surface 1211c; θ1 is the hovering design value of the first cam pair; α 1min It is the minimum angle at which the first cam pair can achieve closed self-locking.

[0181] Optionally, Fig.23 is a coordinate diagram of the cooperation between the second cam tooth of the second cam and the second cam tooth of the fourth cam in the first embodiment of the present application, Fig.24 yes Fig.23 The coordinate diagram of the second cam tooth of the second cam and the second cam tooth of the fourth cam after rotation is shown in FIG. Fig.23 and Fig.24 As shown, please combine the rebound tension, screen size, and weight of the specific smart terminal to determine the minimum closing angle α 2min In order to ensure the stable cooperation between the first cam pair and the second cam pair, the torque peak intervals of the first cam pair and the second cam pair must overlap to a certain extent. Combined with the torque peak interval of the first cam pair, the torque peak interval of the second cam pair must be (h2 / tanα-g, θ2), where g is the torque peak interval overlap coefficient, usually 5°, and the result is:

[0182]

[0183] In order to meet the hovering requirement, the contact end angle of the third contact surface 1221a of the two second cam teeth of the second cam pair meshing with each other needs to be greater than the hovering interval angle θ2;

[0184] h4 / tanα2+w4≥θ2

[0185] From the above two formulas, we can get:

[0186]

[0187] When the number of the second cam teeth 1221 of the second cam 122 and the fourth cam 141 is 2, there are:

[0188]

[0189] Wherein, w3 is the avoidance safety gap, which is 5-10°. If w2 is too small, it will cause the second top surface 1221c to be worn more severely, affecting the hovering effect, so w2 needs to be greater than w 2min ;w 2minThe minimum width to avoid aggravated wear of the second top surface 1221c. β2 is designed to meet the demoulding requirements, so its maximum value is 90°, and it can be obtained:

[0190]

[0191] Combining the above formulas, we can get:

[0192]

[0193] Among them, the torque peak interval of the second cam pair is (h2 / tanα1-g, θ2), g is the torque peak interval overlap coefficient, θ2 is the hovering design value of the first cam pair, and h2 is the closed overlap height of the first cam pair; w2 is the width of the second top surface 1221c; when the second top surface 1221c contacts the bottom of the second cam groove, the height of the second cam tooth is h4; when the second top surface 1221c contacts the bottom of the second cam groove, the edge spacing between one edge of the second top surface 1221c and the fourth contact surface 1221b of the adjacent second cam tooth is w3, and the edge spacing between the other edge of the second top surface 1221c and the third contact surface 1221a of another adjacent second cam tooth is w4; α 2min It is the minimum angle at which the second cam pair can achieve closed self-locking.

[0194] Second embodiment

[0195] Fig.25 is a coordinate diagram of the cooperation between the second cam tooth of the second cam and the second cam tooth of the fourth cam in the second embodiment of the present application, Fig.26 yes Fig.25 The coordinate diagram of the second cam tooth of the second cam and the second cam tooth of the fourth cam after rotation shows that the hinge mechanism of this embodiment is substantially the same as the hinge mechanism of the first embodiment, except that the local structure of the second cam tooth is different.

[0196] Alternatively, if Fig.25 and Fig.26 As shown, in this embodiment, the second top surface 1221c of the second cam tooth is inclined, and the inclination direction of the second top surface 1221c is downwardly inclined from the third contact surface 1221a to the fourth contact surface 1221b.

[0197] Alternatively, if Fig.25 and Fig.26 As shown, the fourth contact surface 1221b includes a first contact segment and a second contact segment, the upper edge of the first contact segment is connected to the second top surface 1221c, the lower edge of the first contact segment is connected to the upper edge of the second contact segment, the lower edge of the second contact segment is connected to the lower edge of the third contact surface 1221a of another adjacent second cam tooth, and the second contact segment is arranged across the bottom of the second cam groove.

[0198] Optionally, the inclination angle β2 of the first contact section is greater than the inclination angle of the second contact section.

[0199] Alternatively, if Fig.25 and Fig.26 As shown, the minimum closing angle α of the second cam pair can be determined by combining the rebound tension, screen size, and weight of the specific smart terminal. 2min In order to ensure the stable cooperation between the first cam pair and the second cam pair, the torque peak intervals of the first cam pair and the second cam pair must overlap to a certain extent. Combined with the torque peak interval of the first cam pair, the torque peak interval of the second cam pair must be (h2 / tanα-g, θ2), where g is the torque peak interval overlap coefficient, usually 5°, and the result is:

[0200]

[0201] In order to meet the hovering requirement, the contact end angle of the third contact surface 1221a of the two second cam teeth of the second cam pair meshing with each other needs to be greater than the hovering interval angle θ2;

[0202] h4 / tanα2+w4≥θ2

[0203] From the above two formulas, we can get:

[0204]

[0205] When the number of the second cam teeth 1221 of the second cam 122 and the fourth cam 141 is 2, there are:

[0206]

[0207] Wherein, w3 is the avoidance safety gap, which is 5-10°. If w2 is too small, it will cause the second top surface 1221c to be worn more severely, affecting the hovering effect, so w2 needs to be greater than w 2min ;w 2min The minimum width to avoid aggravated wear of the second top surface 1221c. β2 is designed to meet the demoulding requirements, so its maximum value is 90°, and it can be obtained:

[0208]

[0209] If the lifting screen automatically flattens the hand feeling, it is required that when the first cam pair contacts the two first contact surfaces 1211a, the second cam pair has no obstruction to it, that is, the contact of the two third contact surfaces 1221a of the second cam pair ends, and the contact start angle of the two second contact surfaces 1211b of the first cam pair is γ, and γ is obtained by the following formula:

[0210]

[0211] In order to meet the hovering requirement, the contact end angle of the two third contact surfaces 1221a of the second cam pair needs to be smaller than the contact start angle of the two second contact surfaces 1211b of the first cam pair by γ;

[0212] h4 / tanα2+w4≤γ

[0213] From the above two formulas, we can get:

[0214]

[0215] Combining the above formulas, we can get:

[0216]

[0217] Among them, the torque peak interval of the second cam pair is (h2 / tanα1-g, θ2), g is the torque peak interval overlap coefficient, θ2 is the hovering design value of the first cam pair; h1 is the height when the first top surface 1211c of the first cam pair contacts the bottom of the first cam groove 102; h2 is the closed overlap height of the first cam pair; w1 is the width of the first top surface 1211c; w2 is the width of the second top surface 1221c; h4 is the height of the connection between the second top surface 1221c and the third contact surface 1221a; when the second top surface 1221c contacts the second contact section, the distance between one edge of the second top surface 1221c and the lower edge of the first contact section of the adjacent second cam tooth is w3, and the distance between the other edge of the second top surface 1221c and the edge of the third contact surface 1221a of another adjacent second cam tooth is w4; α1 is the closed self-locking angle of the first cam pair; α2 is the closed self-locking angle of the second cam pair; α 2min is the minimum angle at which the second cam pair can achieve closed self-locking; β2 is the inclination angle of the first contact section.

[0218] The present application also relates to a smart terminal, comprising a rotating assembly or a hinge mechanism according to any one of the above embodiments.

[0219] Please refer to the above for the structure and functions of the smart terminal, which will not be repeated here.

[0220] It is understood that the above scenarios are only examples and do not constitute a limitation on the application scenarios of the technical solutions provided in the embodiments of the present application. The technical solutions of the present application can also be applied to other scenarios. For example, it is known to those skilled in the art that with the evolution of the system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0221] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0222] The units in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0223] In the present application, the same or similar terminology concepts, technical solutions and / or application scenario descriptions are generally described in detail only the first time they appear. When they appear again later, they are generally not repeated for the sake of brevity. When understanding the technical solutions and other contents of the present application, for the same or similar terminology concepts, technical solutions and / or application scenario descriptions that are not described in detail later, reference can be made to the previous related detailed descriptions.

[0224] In the present application, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0225] The various technical features of the technical solution of the present application can be arbitrarily combined. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present application.

[0226] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as above, and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, a controlled terminal, or a network device, etc.) to execute the method of each embodiment of the present application.

[0227] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loading and executing computer program instructions on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, a data center, etc. that contains one or more available media integrated. The available medium can be a magnetic medium, (e.g., a floppy disk, a storage disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state storage disk Solid State Disk (SSD)), etc.

[0228] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A rotating assembly, characterized in that: It includes a rotating shaft and at least one swing arm assembly, and the swing arm assembly includes: A swing arm, a first elastic component, and a second elastic component. When the swing arm rotates around the rotating shaft, the first elastic component and the second elastic component provide asynchronous elastic force for the swing arm by setting different first cam pairs and second cam pairs.

2. The rotating assembly according to claim 1, characterized in that: Also includes at least one of the following: The swing arm is rotatably sleeved on the middle part of the rotating shaft, and the swing arm is provided with a first cam and a second cam on two opposite sides along the length direction of the rotating shaft; The first elastic component is movably connected to the rotating shaft, the first elastic component includes a third cam meshing with the first cam, and the first cam and the third cam are combined to form the first cam pair; The second elastic component is movably connected to the rotating shaft. The second elastic component includes a fourth cam meshed with the second cam. The second cam and the fourth cam are combined to form the second cam pair.

3. The rotating assembly according to claim 2, characterized in that: Also includes at least one of the following: The first cam teeth of the first cam pair are different in number or density from the second cam teeth of the second cam pair; The first cam teeth of the first cam and the second cam teeth of the second cam are arranged in a staggered manner along the axis direction of the rotating shaft; The first cam teeth of the third cam and the second cam teeth of the fourth cam are arranged in a staggered manner along the axis direction of the rotating shaft; The first cam teeth of the first cam pair and the second cam teeth of the second cam pair have different shapes; The starting time and / or the ending time of the torque peak provided by the first cam pair and the second cam pair are different.

4. The rotating assembly according to claim 3, characterized in that: The rotating assembly further comprises at least one of the following: A plurality of first cam teeth are arranged at intervals around the axis of the rotating shaft, each of the first cam teeth comprises a first contact surface, a second contact surface and a first top surface, the first top surface is connected between the first contact surface and the second contact surface, and a first cam groove is formed between the first contact surface of the first cam tooth and the second contact surface of another adjacent first cam tooth; A plurality of second cam teeth are arranged at intervals around the axis of the rotating shaft, each of the second cam teeth comprises a third contact surface, a fourth contact surface and a second top surface, the second top surface is connected between the third contact surface and the fourth contact surface, and a second cam groove is formed between the third contact surface of the second cam tooth and the fourth contact surface of another adjacent second cam tooth; The second top surface of the second cam tooth is inclined, and the inclination direction of the second top surface is downwardly inclined from the third contact surface toward the fourth contact surface; The fourth contact surface includes a first contact section and a second contact section, the upper edge of the first contact section is connected to the second top surface, the lower edge of the first contact section is connected to the upper edge of the second contact section, the lower edge of the second contact section is connected to the lower edge of the third contact surface of another adjacent second cam tooth, and the second contact section is arranged across the groove bottom of the second cam groove; The inclination angle of the first contact section is greater than the inclination angle of the second contact section.

5. The rotating assembly according to claim 4, characterized in that: Also includes: When the first cam is meshed with the third cam, a gap is provided between the first top surface and the groove bottom of the first cam groove.

6. The rotating assembly according to any one of claims 2 to 5, characterized in that: Also includes at least one of the following: The swing arm includes an arm portion, a first rotating cylinder and a second rotating cylinder, wherein the first rotating cylinder and the second rotating cylinder are fixed to the end of the arm portion in an opposite manner, the first rotating cylinder and the second rotating cylinder are sleeved on the rotating shaft, the first cam is formed at the end of the first rotating cylinder, and the second cam is formed at the end of the second rotating cylinder; The first elastic component includes a first baffle, a first main spring and a first cam seat, the first baffle is connected to the rotating shaft, the first baffle does not rotate relative to the rotating shaft, the first main spring and the first cam seat are sleeved on the rotating shaft, two ends of the first main spring abut against or are connected to the first baffle and the first cam seat, and the third cam is formed on the first cam seat; The second elastic component includes a second baffle, a second main spring and a second cam seat, the second baffle is connected to the rotating shaft, the second baffle does not rotate relative to the rotating shaft, the second main spring and the second cam seat are sleeved on the rotating shaft, the two ends of the second main spring abut against or are connected to the second baffle and the second cam seat, and the fourth cam is formed on the second cam seat.

7. A hinge mechanism, characterized in that: It comprises at least two rotating components as described in any one of claims 1 to 6, wherein the at least two rotating components are at least one first rotating component and at least one second rotating component, and the first rotating component and the second rotating component are arranged opposite to each other in a direction parallel to the rotation axis.

8. The hinge mechanism according to claim 7, characterized in that: Also includes at least one of the following: The rotating shaft of the first rotating assembly and the rotating shaft of the second rotating assembly are arranged parallel to each other; The swing arm of the first rotating assembly and the swing arm of the second rotating assembly are both provided with a transmission gear; The transmission gear of the first rotating assembly and the transmission gear of the second rotating assembly are linked to each other via a synchronous gear set.

9. The hinge mechanism according to claim 8, characterized in that: Also includes at least one of the following: The first cam seat of the first rotating assembly and the first cam seat of the second rotating assembly are an integral structure; The second cam seat of the first rotating assembly and the second cam seat of the second rotating assembly are an integral structure; At least one fifth cam is also formed on a side of the first cam seat close to the synchronous gear set; A sixth cam is disposed at an end of at least one gear in the synchronous gear set.

10. An intelligent terminal, characterized in that: It comprises the rotating assembly according to any one of claims 1 to 6 and / or the hinge mechanism according to any one of claims 7 to 9.

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