Key assembly and mobile terminal

Abstract

The application provides a key assembly and a mobile terminal. The key assembly comprises a shell body arranged on the back of a mobile terminal body, the shell body comprising an inner surface and an outer surface, the inner surface being spaced apart from the back of the mobile terminal body, and the outer surface comprising a trigger area. The key assembly further comprises a first sensor assembly arranged on the back of the mobile terminal body and corresponding to the trigger area, and a signal transmission member connected with the first sensor assembly and the inner surface of the shell body and used for transmitting signals from the trigger area. The first sensor assembly is used for receiving signals of the trigger area, so that the key assembly triggers corresponding key operations. Therefore, by using the sensor assembly and the signal transmission member on the inner side of the shell body, signals received by the trigger area of the shell body can be smoothly transmitted to the sensor assembly, so that a user can control the mobile terminal through the keys on the back. Moreover, the key assembly has a simple structure and is convenient to assemble.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a button assembly and a mobile terminal having the button assembly. Background Technology

[0002] With the widespread use of smartphones, tablets, and other electronic devices, people are increasingly accustomed to using touch controls to perform corresponding functions. Currently, most touch control methods on the market employ flexible printed circuits (FPCs) with sensors attached to them. The flexible circuit board with the sensors is attached to the casing of the electronic device to form a corresponding sensing area, and the button switch is triggered by touching this sensing area.

[0003] However, in related technologies, there are very few functional designs on the back of mobile terminals. Even if there is a secondary screen, it is impossible to control the mobile terminal by setting buttons on the back. Utility Model Content

[0004] This application aims to at least solve one of the technical problems existing in the related art. Therefore, the purpose of this application is to provide a button assembly and a mobile terminal that solves the technical problem in the related art where the back of the mobile terminal rarely has functional design, and even if there is a secondary screen, it is impossible to control the mobile terminal by setting buttons on the back.

[0005] To address the aforementioned technical problems, this application provides a button assembly applied to a mobile terminal. The button assembly includes a housing body disposed on the back of the mobile terminal body. The housing body includes an inner surface and an outer surface disposed opposite to each other. The inner surface forms a gap with the back of the mobile terminal body, and the outer surface includes a trigger area. The button assembly further includes: a first sensor assembly disposed on the back of the mobile terminal body and corresponding to the trigger area; and a signal transmitter connected to the first sensor assembly and the inner surface of the housing body, used to transmit signals from the trigger area. The first sensor assembly is used to receive signals from the trigger area, causing the button assembly to trigger a corresponding button operation.

[0006] In an exemplary embodiment, the button assembly further includes a support member disposed inside the housing body and spaced apart from it. The first sensor assembly is attached to the surface of the support member facing the housing body. One end of the signal transmitter abuts against the first sensor assembly, and the other end of the signal transmitter elastically abuts against the inner surface of the housing body. When pressure is applied to the trigger area, the signal transmitter undergoes elastic deformation and applies pressure to the first sensor assembly. The first sensor assembly acquires the pressure signal generated by the deformation of the signal transmitter and triggers a corresponding button operation based on the pressure signal.

[0007] In an exemplary embodiment, the button assembly further includes a second sensor assembly, which is used to detect a second signal of the mobile terminal and dynamically adjust the trigger threshold of the first sensor assembly according to the second signal of the mobile terminal.

[0008] In an exemplary embodiment, the second signal includes one or more of posture information, ambient light information, and human body information.

[0009] In an exemplary embodiment, the signal transmitting element includes a fitting portion, a deformable portion, and a supporting portion. The fitting portion is fitted to the surface of the first sensor assembly facing away from the support member. The deformable portion is connected between the fitting portion and the supporting portion. The supporting portion elastically abuts against the inner surface of the housing body and corresponds to the position of the trigger area.

[0010] In an exemplary embodiment, the first sensor component is a pressure sensor, the signal transmission element is an elastic sheet, the fitting portion has a through hole, the size and shape of the through hole match the size and shape of the deformable portion, and the position of the deformable portion corresponds to the position of the through hole.

[0011] In an exemplary embodiment, the trigger area is located on the outer surface of the housing body near the edge and adjacent to the frame of the mobile terminal.

[0012] In an exemplary embodiment, the button assembly further includes a protective member, which is attached to the inner surface of the housing body, the abutting portion abuts against the surface of the protective member opposite to the housing body, the fitting portion is attached to the surface of the first sensor assembly opposite to the support member, and the position of the protective member corresponds to the position of the trigger area.

[0013] In an exemplary embodiment, the button assembly is provided with a plurality of signal transmitting elements, each of which corresponds one-to-one with a plurality of sensing zones of the first sensor assembly; or, the button assembly is provided with a plurality of first sensor assemblies, each of which includes a plurality of contact portions, each of which corresponds one-to-one with a plurality of contact portions of the signal transmitting element.

[0014] In an exemplary embodiment, the bonding portion is sheet-shaped, the thickness of the bonding portion is 0.08-0.15 mm, the width of the deformable portion is 1.5-2.5 mm, and the sum of the lengths of the deformable portion and the abutting portion is 5.5-6.5 mm.

[0015] In an exemplary embodiment, the housing body is a transparent housing, the support member includes a groove and a through hole, the first sensor assembly includes a flexible circuit board, the flexible circuit board is disposed in the groove and connected to the circuit board of the mobile terminal along the through hole; the button assembly also includes a decorative piece, the decorative piece covering the groove and the through hole.

[0016] In an exemplary embodiment, the first sensor component is a sensor with multiple trigger signals. The sensor receives signals from different pressures in the trigger area to trigger different trigger levels, thereby causing the button component to trigger corresponding button operations.

[0017] Based on the same technical concept, this application also provides a mobile terminal, which includes the above-mentioned button components.

[0018] In an exemplary embodiment, the back cover of the mobile terminal is provided with one or more of a rear display module, a camera module, and a main display module composed of multiple LEDs, and the button assembly is used to control one or more of the rear display module, the camera module, and the main display module.

[0019] In summary, the mobile terminal and button assembly provided in this application include the aforementioned button assembly. The button assembly comprises a housing body, a first sensor assembly, and a signal transmitter. The housing body is disposed on the back of the mobile terminal body and includes an inner surface and an outer surface facing away from each other. The inner surface forms a gap with the back of the mobile terminal body, and the outer surface includes a trigger area. The first sensor assembly is disposed on the back of the mobile terminal body and corresponds to the trigger area. The signal transmitter is connected to the first sensor assembly and the inner surface of the housing body, and is used to transmit signals from the trigger area. The first sensor assembly receives signals from the trigger area, causing the button assembly to trigger corresponding button operations. Therefore, the button assembly of this application, by employing a sensor assembly and a signal transmitter on the inner side of the housing body, ensures that signals received by the housing trigger area can be smoothly transmitted to the sensor assembly, allowing the user to control the mobile terminal via buttons on the back. Therefore, the button assembly is not only simple in structure and easy to assemble, but also helps to reduce overall structural design costs and assembly process costs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a mobile terminal disclosed in an embodiment of this application.

[0022] Figure 2 for Figure 1 The diagram shows the structure of the mobile terminal from another perspective.

[0023] Figure 3 for Figure 1 The diagram shows the internal structure of the mobile terminal.

[0024] Figure 4 This is a schematic diagram of the structure of a button assembly disclosed in an embodiment of this application.

[0025] Figure 5 for Figure 4 The diagram shows a partial structural schematic of the button assembly.

[0026] Figure 6 for Figure 4 The diagram shows the location of the first sensor assembly.

[0027] Figure 7 for Figure 5The diagram shows a three-dimensional structure of the signal transmission component.

[0028] Figure 8 for Figure 7 The diagram shows a front view of the signal transmission component.

[0029] Figure 9 This is a schematic diagram of another button component disclosed in an embodiment of this application.

[0030] Figure 10 This is a schematic diagram of the layout of the trigger area of ​​the housing body disclosed in an embodiment of this application.

[0031] Figure 11 This is a schematic diagram of another layout of the trigger area of ​​the housing body disclosed in the embodiments of this application.

[0032] Figure 12 This is another schematic diagram of the layout of the trigger area of ​​the housing body disclosed in the embodiments of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1-Mobile terminal; 10-Housing; 20-Main display module; 30-Battery module; 40-Camera module; 50-Rear display

[0035] Display module 60 - back cover assembly; 11 - middle frame; 111 - border; 61 - back cover; 611 - first surface; 80 - button assembly; 81 - housing body; 811 - outer surface; 812 - inner surface; 813 - trigger area; 82 - first sensor assembly; 83 - signal transmission component;

[0036] 84-Support component; 86-Second sensor assembly; 841-Mounting surface; 843-Mating surface; 831-Fitting part; 832-Deformation part;

[0037] 833-Supporting part; 835-Through hole; 87-Protective part; 8322-Notch; 841-Groove; 842-Through hole; 822-Flexible circuit board. Detailed Implementation

[0038] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0039] The following descriptions of the embodiments are based on the accompanying illustrations and are used to illustrate specific embodiments in which this application can be implemented. The component designations used herein, such as "first," "second," etc., are merely for distinguishing the described objects and have no sequential or technical meaning. Directional terms used in this application, such as "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "side," etc., are only for reference to the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of this application, and are not intended to indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this application.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" or "including" indicate the presence of the corresponding features, numbers, steps, operations, elements, components, or combinations thereof disclosed in the specification, but do not exclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, and are intended to cover non-exclusive inclusion. In the exemplary embodiments of this application, "the orthographic projection of B is within the range of the orthographic projection of A" or "the orthographic projection of A includes the orthographic projection of B" means that the boundary of the orthographic projection of B falls within the boundary range of the orthographic projection of A, or the boundary of the orthographic projection of A overlaps with the boundary of the orthographic projection of B.

[0041] In this application, unless otherwise expressly specified and limited, the terms "above," "over," and "on top" for "first feature" and "second feature" can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, the terms "below," "under," and "beneath" for "first feature" and "second feature" can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0042] Please see Figure 1 , Figure 2and Figure 3 , Figure 1 This is a schematic diagram of the structure of a mobile terminal disclosed in an embodiment of this application. Figure 2 for Figure 1 The diagram shows the structure of the mobile terminal from another perspective. Figure 3 for Figure 1 The diagram shows the internal structure of the mobile terminal. Figure 1 , Figure 2 and Figure 3 As shown, the mobile terminal 1 provided in this application embodiment may include, but is not limited to, mobile terminal devices such as smartphones, tablets, handheld computers, handheld game consoles, and personal digital assistants (PDAs).

[0043] For ease of description, the specific structure of the mobile terminal 1 provided in this application will be further illustrated below using a smartphone as an example.

[0044] It should be noted that in the accompanying drawings of the embodiments of this application, the X-axis direction can be defined as the width direction of the mobile terminal 1, the Y-axis direction as the length direction of the mobile terminal 1, and the Z-axis direction as the thickness direction of the mobile terminal 1 (i.e., the direction from the display surface of the mobile terminal to the back). The X-axis, Y-axis, and Z-axis directions are mutually perpendicular. The X-axis direction can be defined as a first direction, the Y-axis direction as a second direction, and the Z-axis direction as a third direction. More specifically, the positive direction of the X-axis can be defined as the direction from right to left on the display surface when the user uses the mobile terminal 1, the positive direction of the Y-axis can be defined as the direction from bottom to top on the display surface when the user uses the mobile terminal 1, and the positive direction of the Z-axis can be defined as the direction from the back of the mobile terminal 1 to the display surface. It is understood that, according to product design needs, the length direction of the mobile terminal 1 can also be defined as the X-axis direction, and the width direction of the mobile terminal 1 can be defined as the Y-axis direction; this application does not specifically limit this.

[0045] like Figure 1 , Figure 2 and Figure 3 As shown, the mobile terminal 1 provided in this application embodiment includes a housing 10, a main display module 20, a battery module 30, a camera module 40, a rear display module 50, and a back cover assembly 60. The housing 10 can be used to provide positioning support and protection for the main display module 20, the battery module 30, the camera module 40, the rear display module 50, and the back cover assembly 60.

[0046] The housing 10 includes a middle frame 11, with the main display module 20 and the rear cover assembly 60 located on opposite sides of the middle frame 11 and fixedly connected to it. Specifically, the main display module 20 and the rear cover assembly 60 can be fixedly connected to the middle frame 11 via a dispensing process to improve the reliability and stability of the connection. In this embodiment, the main display module 20 and the rear cover assembly 60 are fixedly connected to opposite sides of the housing 10, and the main display module 20, the rear cover assembly 60, and the housing 10 together form an accommodating space for accommodating and installing electronic components such as the battery module 30, camera module 40, rear display module 50, and circuit board of the mobile terminal 1. Specifically, a first accommodating space can be formed between the mid-frame 11 and the rear cover assembly 60, and at least some of the aforementioned electronic components can be disposed within the first accommodating space. A second accommodating space can be formed between the mid-frame 11 and the main display module 20, and some of the aforementioned electronic components can be disposed within the second accommodating space. It is understood that the battery module 30 can provide power to the main display module 20, the camera module 40, and the rear display module 50.

[0047] The middle frame 11 includes a border 111, which can be made of materials such as aluminum alloy, magnesium alloy, stainless steel, ceramic, glass, or plastic, but is not limited to these. Function buttons such as volume buttons and a screen-off button can be disposed on the border 111, and these function buttons are electrically connected to the processor of the mobile terminal 1. In an exemplary embodiment, the border 111 can be manufactured by at least one of the following methods: injection molding, compression molding, extrusion, forging, die casting, and computer numerical control (CNC) machine tool processing.

[0048] In this embodiment, the frame 111 may be made wholly or partially of a transparent material (not limited to glass, transparent plastic, etc.). By making the frame 111 of a transparent material, not only is processing and manufacturing easier, but the electronic components inside the mobile terminal 1 can also be displayed visually.

[0049] The main display module 20 has display and touch functions, meaning that the mobile terminal 1 can be operated by clicking on the main display module 20. The main display module 20 may include structural layers such as a touch screen, a light-emitting layer, a backplane layer, and a substrate layer, and its specific structure can be selected according to different products.

[0050] In this embodiment, the main display module 20 can be a liquid crystal display (LCD), an organic light-emitting diode (OLED) display, an active-matrix organic light-emitting diode (AMOLED) display, a flexible light-emitting diode (FLED) display, or a quantum dot light-emitting diode (QLED) display, etc. The main display module 20 can be used to display image information and provide an interactive interface for the user.

[0051] In this embodiment, the rear display module 50 may be a dot matrix screen, which is used to display functional image information to the user. The functional image information includes, but is not limited to, displaying time, date, preset patterns, logos, and other image information, to increase the functional diversity, visual appeal, and personalized design of the mobile terminal 1.

[0052] In this embodiment, the mobile terminal 1 may further include a circuit board located within the accommodating space and fixedly mounted on the housing 10. The circuit board is electrically connected to the battery module 30, the main display module 20, the camera module 40, and the rear display module 50, and may also integrate electronic components such as the processor, storage unit, baseband chip, and power management unit of the mobile terminal 1. The processor controls the display of the main display module 20 and the rear display module 50, as well as the shooting of the camera module 40. The power management unit distributes the voltage provided by the battery module 30 to the various electronic components in the mobile terminal 1. The circuit board may be a printed circuit board (PCB), consisting of an insulating base plate, connecting wires, and pads for assembling and soldering electronic components, serving the dual function of conductive lines and an insulating base plate. The circuit board may be a single-sided board, a double-sided board, or a multi-layer board, which can replace complex wiring, enabling wiring and electrical connections or electrical insulation between various electronic components, providing the required electrical characteristics.

[0053] In this embodiment, the back cover assembly 60 includes a transparent back cover 61, which is disposed opposite to the main display module 20 and detachably mounted on the housing 10. The back cover 61 includes a first surface 611 and a second surface disposed opposite to each other. The first surface 611 is the outer surface of the back cover 61, which is visible to the user, and the second surface is the inner surface of the back cover 61, facing the interior of the mobile terminal 1.

[0054] In this embodiment of the application, the back cover 61 can be the battery cover of the mobile terminal 1 made of a transparent material (such as glass, transparent plastic, etc.).

[0055] In one embodiment of this application, the back cover 61 and the frame 111 may be made entirely or partially of transparent materials (such as glass, transparent plastic, etc.). This not only facilitates processing and manufacturing, but also allows at least some electronic components of the mobile terminal 1, such as the camera module 40 and the rear display module 50, to be visible through the transparent back cover 61. Users can see at least some of the electronic components and their arrangement on the back of the mobile terminal 1, which helps to improve the technological feel, personalization and overall aesthetics of the mobile terminal 1.

[0056] In this embodiment, after the back cover 61 is fixedly connected to the middle frame 11, the first surface 611 of the back cover 61 is exposed so that the user can directly view the appearance of the back cover 61, thereby enhancing the appearance of the mobile terminal 1. Furthermore, the back cover 61 is made of glass, such as high-alumina-silicon glass or nanocrystalline glass, which has characteristics such as high hardness, wear resistance, and scratch resistance. It is understood that the first surface 611 (i.e., the appearance surface) of the back cover 61 is a relatively smooth surface to give the back cover 61 better appearance characteristics.

[0057] In this embodiment, the mobile terminal 1 further includes a button assembly, which is applied to the mobile terminal. The button assembly includes a housing body disposed on the back of the mobile terminal body. The housing body includes an inner surface and an outer surface disposed opposite to each other. The inner surface forms a gap with the back of the mobile terminal body, and the outer surface includes a trigger area. The button assembly further includes a first sensor assembly disposed on the back of the mobile terminal body and corresponding to the trigger area; and a signal transmitter connected to the first sensor assembly and the inner surface of the housing body, used to transmit signals from the trigger area. The first sensor assembly is used to receive signals from the trigger area, causing the button assembly to trigger a corresponding button operation.

[0058] Please refer to the following: Figure 4 , Figure 4 This is a schematic diagram of a button assembly disclosed in an embodiment of this application. Figure 4 As shown, the mobile terminal 1 also includes a button assembly 80, which includes a housing body 81. The housing body 81 is disposed on the back of the mobile terminal body. The housing body 81 includes an outer surface 811 and an inner surface 812 disposed opposite to each other. The inner surface 812 and the back of the mobile terminal body are spaced apart, that is, they are spaced apart. The outer surface 811 includes a trigger area 813.

[0059] In this embodiment, the housing body 81 may be a portion of the housing of the rear cover 61, or it may be the entire rear cover 61. Correspondingly, the outer surface 811 may be a portion or the entire surface of the first surface 611 of the rear cover 61, and the inner surface 812 may be a portion or the entire surface of the second surface of the rear cover 61. The trigger area 813 is located on the outer surface 811 of the housing body 81, making it easily visible and operable by the user. The trigger area 813 is disposed on the first surface 611 of the rear cover 61, and an opaque adhesive patch area is formed on the first surface 611. The user can perform input operations on the button assembly 80 by pressing the opaque adhesive patch area.

[0060] It is understandable that, in order to prevent accidental operation when the mobile terminal 1 is grasped, the trigger area 813 is located on the outer surface 811 of the housing body 81 near the edge and adjacent to the frame 111 of the mobile terminal 1.

[0061] The button assembly 80 further includes a first sensor assembly 82 and a signal transmitter 83. The first sensor assembly 82 is disposed on the back of the mobile terminal body and corresponds to the trigger area 813. One end of the signal transmitter 83 is connected to the first sensor assembly 82, and the other end of the signal transmitter 83 is connected to the inner surface 812 of the housing body 81, for transmitting signals from the trigger area 813. The first sensor assembly 82 is used to receive signals from the trigger area 813, causing the button assembly 80 to trigger corresponding button operations.

[0062] It is understood that the signal transmission component 83 can be a light guide column, which is used to effectively guide and transmit light through total internal reflection to ensure that the light can be projected uniformly and stably onto the predetermined target area. The light guide column is mainly made of optical materials, such as transparent or translucent materials like acrylic resin, polycarbonate, epoxy resin, and glass. Correspondingly, the first sensor component 82 can be a light sensor (e.g., a reflective light sensor). When the user touches or approaches the trigger area 813, the light signal intensity of the light guide column changes, and the change in light signal intensity is transmitted to the light sensor. The light sensor receives the change in light signal intensity, causing the button component 80 to trigger a corresponding button input operation.

[0063] It is understood that the signal transmission element 83 can also be an elastic sensitive element (i.e., a pressure-sensitive elastic element), which can be a solid or hollow cylinder. This elastic sensitive element is used to convert the measured parameters such as pressure and torque into strain or displacement during operation, and then converts the strain or displacement into an electrical signal through a relevant conversion element. The first sensor assembly 82 receives the electrical signal, causing the button assembly 80 to trigger the corresponding button input operation.

[0064] Therefore, the signal transmission element 83, by employing non-button travel triggering methods such as pressure sensing and light sensing, can achieve button functions through force / light conduction from the housing, allowing the back cover and housing body to be designed as a single unit, eliminating the need for additional openings for buttons and facilitating the overall waterproof and dustproof design. Furthermore, the flat surface formed by the housing ensures that the trigger area 813 is not easily triggered accidentally when the mobile terminal 1 is placed face up.

[0065] It is understood that the signal transmission element 83 can also be a push-push structure of a physical button, a deformable elastic element, or other signal transmission structure.

[0066] In this embodiment, the signal transmission element 83 can be any one of the following: a light guide post for light sensing, an elastic sensitive element, a push-push structure of a physical button, a deformable elastic element, a metal thin film strain gauge, a rotating strain gauge, or a piezoelectric crystal.

[0067] In this embodiment, the first sensor assembly 82 may be a pressure sensor, and the signal transmitter 83 may be an elastic sheet. The button assembly 80 further includes a support member 84, which is disposed on the inner side of the housing body 81 and forms a gap with the housing body 81, i.e., the support member 84 is spaced apart from the housing body 81. The first sensor assembly 82 is attached to the surface of the support member 84 facing the housing body 81. One end of the signal transmitter 83 abuts against the first sensor assembly 82, and the other end of the signal transmitter 83 elastically abuts against the inner surface 812 of the housing body 81. When the trigger area 813 is subjected to pressure, the signal transmitter 83 undergoes elastic deformation and applies pressure to the first sensor assembly 82. The first sensor assembly 82 is used to acquire the pressure signal generated by the deformation of the signal transmitter 83 and trigger the corresponding button operation according to the pressure signal.

[0068] In this embodiment, the button assembly 80 is electrically connected to the circuit board and the rear display module 50, and can control the rear display module 50 to display corresponding image information, such as controlling the rear display module 50 to light up the screen; or, for example, pressing and holding the button assembly 80 can turn off the screen of the rear display module 50; double-clicking the button assembly 80 can adjust the display brightness of the rear display module 50 or change the display pattern. It is understood that the way the button assembly 80 controls the rear display module 50 can be adjusted and preset according to specific needs, and this application does not specifically limit this.

[0069] It is understood that the outer surface 811 of the housing body 81 may also be provided with multiple trigger areas 813. When any of the trigger areas 813 is pressed, it can deform toward the interior of the housing body 81. Specifically, when any of the trigger areas 813 on the outer surface 811 is pressed, the trigger area 813 will deform and generate displacement toward the interior of the housing body 81; when the trigger area 813 is no longer pressed, the housing body 81 can restore its deformation.

[0070] In this embodiment, the button assembly 80 may further include a second sensor assembly 86, which is electrically connected to a processor on the circuit board. The second sensor assembly 86 is used to detect a second signal from the mobile terminal 1 and dynamically adjust the trigger threshold of the first sensor assembly 82 based on the second signal from the mobile terminal 1 to prevent accidental touches of the button assembly 80.

[0071] In this embodiment, the second sensor component 86 may be one or more of a gyroscope sensor, a capacitive sensor, a light sensor, an accelerometer, a distance sensor, and a displacement sensor. Correspondingly, the second signal may include one or more of attitude information, ambient light information, and human body information.

[0072] In one embodiment of this application, the second sensor assembly 86 may be a gyroscope sensor, and the second sensor assembly 86 is disposed within the housing 10 (e.g., Figure 1 As shown, the second sensor component 86 is used to sense the rotational angular velocity and angle changes of the mobile terminal 1 in real time (such as the flipping action when the mobile terminal is picked up from a table). When the mobile terminal 1 rotates or tilts rapidly, the second sensor component 86 outputs corresponding three-dimensional motion data. For example, if the second sensor component 86 detects that the mobile terminal 1 changes from a horizontal to a vertical state (such as an angle change > 15°) and is accompanied by a low angular velocity, it can be determined that the mobile terminal 1 is being picked up by hand; if the mobile terminal 1 shakes irregularly (such as a high-frequency, small-amplitude angular velocity change in a pocket), it can be determined that the mobile terminal 1 is in a non-active operation state. Therefore, when the second sensor component 86 determines that the mobile terminal 1 is in a non-active operation state (such as being placed in a pocket or accidentally shaken), it means that there is no need to trigger the corresponding button operation. The second sensor component 86 then adjusts the trigger threshold of the first sensor component 82 to prevent the button component 80 from being accidentally touched. For example, the first sensor component 82 increases the trigger threshold or automatically locks the button function to block invalid touch signals and avoid accidental triggering. Understandably, in this situation, increasing the trigger threshold instead of directly disabling the button function would allow users to operate blindly, although it would require a bit more force.

[0073] In one embodiment of this application, the second sensor assembly 86 may be a capacitive sensor, which is electrically connected to the processor on the circuit board. The second sensor assembly 86 is disposed on the inner surface 812 of the housing body 81 and near the trigger area 813 (e.g., Figure 2As shown, the second sensor component 86 detects the approach of an object by detecting changes in capacitance, such as when a user's palm approaches the mobile terminal 1 or their ear approaches the mobile terminal 1. Furthermore, the second sensor component 86 can analyze features such as touch duration and touch area to exclude brief / unintentional touches, and distinguish between unintentional touches and intentional operations by sensing the spatial position of the finger. Therefore, when the second sensor component 86 does not detect an approaching object, for example, the second sensor component 83 determines that the user's finger has not touched the trigger area 813 by detecting parameters such as the intensity, change pattern, and contact area of ​​the capacitance signal. This means that the corresponding button operation does not need to be triggered. The second sensor component 86 then adjusts the trigger threshold of the first sensor component 82 to prevent accidental touches of the button component 80. For example, the first sensor component 82 increases the trigger threshold or automatically locks the button function to block invalid touch signals and avoid accidental triggering.

[0074] Understandably, the state of the mobile terminal 1 can be determined by combining the accelerometer sensor (such as the tilt angle when the mobile terminal is placed in a pocket), assisting the second sensor component 86 in accurately locking onto accidental touch scenarios. The second sensor component 86 can also automatically adjust the trigger threshold of the first sensor component 82 according to environmental changes (such as temperature and humidity) to prevent accidental triggering of the button component 80 due to environmental interference.

[0075] Please refer to the following: Figure 5 and Figure 6 , Figure 5 for Figure 4 The diagram shows a partial structural representation of the button assembly. Figure 6 for Figure 4 The diagram shows the location of the first sensor assembly. Figure 4 , Figure 5 and Figure 6As shown in this embodiment, the support member 84 is disposed inside the housing body 81 and spaced apart from the housing body 81. The support member 84 provides a fixed and support base for the first sensor assembly 82 and the signal transmitter 83. The support member 84 includes a mounting surface 841 and a mating surface 843 disposed opposite to each other. The mounting surface 841 faces the housing body 81, and the mating surface 843 faces away from the housing body 81. The first sensor assembly 82 is disposed on the mounting surface 841 of the support member 84, that is, the first sensor assembly 82 is attached to the surface of the support member 84 facing the housing body 81. The signal transmitter 83 is disposed between the housing body 81 and the first sensor assembly 82, that is, one end of the signal transmitter 83 is attached to the surface of the first sensor assembly 82 facing away from the support member 84, and the other end of the signal transmitter 83 abuts against the inner surface 812 of the housing body 81 and corresponds to the trigger area 813. The signal transmitting element 83 can undergo elastic deformation after the housing body 81 is compressed, and apply corresponding pressure to the first sensor assembly 82. The first sensor assembly 82 is used to measure the pressure signal generated by the deformation of the signal transmitting element 83, and trigger corresponding button operation according to the pressure signal.

[0076] It is understood that when the trigger area 813 of the housing body 81 is pressed, the housing body 81 deforms and displaces towards the interior of the housing 10. The signal transmission element 83 also undergoes elastic deformation as the housing body 81 deforms under pressure, applying corresponding pressure to the first sensor assembly 82 attached to one end of the signal transmission element 83. The first sensor assembly 82 collects and measures the pressure value applied by the signal transmission element 83 and outputs different electrical signals according to different pressure values, thereby triggering corresponding button operations. The rear display module 50 can display corresponding images according to the button operations. It is understood that when the trigger area 813 of the housing body 81 is no longer pressed, the signal transmission element 83 can recover its deformation under its own elastic force, and one end of the signal transmission element 83 always remains in contact with the housing body 81.

[0077] It is understood that the support member 84 can be arranged parallel to the main display module 20, or it can be arranged perpendicular to the main display module 20 or at an angle. The support member 84 can be an independent component, or it can be an inherent structure of the circuit board or other various button components of the mobile terminal 1. The support member 84 can also be the mid-frame, back panel, or other inherent structure of the mobile terminal 1.

[0078] In this embodiment, the support member 84 is arranged parallel to and opposite to the main display module 20. The support member 84 can be the bracket body of the mobile terminal 1, or it can be other inherent structures of the button assembly 80.

[0079] In this embodiment, the first sensor assembly 82 and the support member 84 can be connected by glue, double-sided foam tape, snap-fit ​​connection or other means, and this application does not make specific limitations on this.

[0080] In this embodiment, the first sensor assembly 82 can be a gauge pressure sensor, a differential pressure sensor, or an absolute pressure sensor, such as a piezoresistive pressure sensor, a ceramic pressure sensor, a piezoelectric pressure sensor, or other sensors used to measure the pressure applied by the deformation of the signal transmission element 83. The first sensor assembly 82 mainly consists of a pressure-sensitive element and a signal processing unit. It can sense pressure signals and convert them into electrical signals that characterize button operations according to a certain rule. The signal processing unit is electrically connected to the rear display module 50, which receives the electrical signals output by the signal processing unit and can display corresponding images according to the button operations.

[0081] Understandably, when the trigger area 813 of the housing body 81 is pressed by a first pressure, the first sensor component 82 acquires a first pressure signal corresponding to the first pressure and outputs a first control electrical signal corresponding to the first pressure signal to control the rear display module 50 to light up the screen and display an image. When the trigger area 813 of the housing body 81 is pressed by a second pressure, the first sensor component 82 acquires a second pressure signal corresponding to the second pressure and outputs a second control electrical signal corresponding to the second pressure signal to control the rear display module 50 to increase the brightness of the displayed image or change the color or content of the image, wherein the second pressure is greater than the first pressure. When the housing body 81 is pressed by a third pressure, the first sensor component 82 acquires a third pressure signal corresponding to the third pressure and outputs a third control electrical signal corresponding to the third pressure signal to control the rear display module 50 to change the pattern of the displayed image.

[0082] In this embodiment, the signal transmitter 83 is attached to the surface of the first sensor assembly 82 facing away from the support member 84. The signal transmitter 83 and the first sensor assembly 82 can be connected by adhesive, foam double-sided tape, welding, snap-fit ​​connection, or other methods. This application does not specifically limit the connection. Because one end of the signal transmitter 83 is completely attached to the first sensor assembly 82, the contact area between them is large. The first sensor assembly 82 can more accurately and sensitively collect and sense the pressure applied by the signal transmitter 83, and can more accurately obtain and calculate the pressure value, thereby triggering the corresponding button operation more precisely.

[0083] One end of the signal transmitter 83 is attached to the surface of the first sensor assembly 82 facing away from the support member 84, and the other end abuts against the inner surface 812 of the housing body 81 and corresponds to the trigger area 813. The signal transmitter 83 can undergo elastic deformation after the housing body 81 is compressed, and apply corresponding pressure to the first sensor assembly 82. The first sensor assembly 82 is used to measure the pressure signal generated by the deformation of the signal transmitter 83, and trigger the corresponding button operation according to the pressure signal to control the rear display module 50 to display the corresponding image.

[0084] It is understood that the signal transmitting element 83 can be integrally molded, and the material of the signal transmitting element 83 can be various elastic metals or non-metals. For example, the material of the signal transmitting element 83 can be steel, magnesium alloy, elastic alloy, beryllium bronze, or other various metal materials. Therefore, when the housing body 81 is no longer under pressure, the signal transmitting element 83 can recover its deformation under the action of its own elastic force, and the signal transmitting element 83 always abuts against the inner surface 812 of the housing body 81.

[0085] Please refer to the following: Figure 7 and Figure 8 , Figure 7 for Figure 5 The diagram shows a three-dimensional structure of the signal transmission component. Figure 8 for Figure 7The diagram shows a front view of the signal transmission component 83. The signal transmission component 83 includes a bonding portion 831, a deformable portion 832, and a supporting portion 833. The bonding portion 831 is bonded to the surface of the first sensor assembly 82 facing away from the support member 84. Specifically, the bonding portion 831 and the first sensor assembly 82 can be connected by adhesive, double-sided foam tape, welding, snap-fit ​​connection, or other methods; this application does not impose specific limitations on these methods. Because the bonding portion 831 is completely bonded to the first sensor assembly 82, the contact area between them is large. This allows the first sensor assembly 82 to more sensitively collect and sense the pressure applied by the signal transmission component 83, enabling more accurate acquisition and calculation of the pressure value, and thus more precisely triggering the corresponding button operation.

[0086] In this embodiment, a copper leakage design is made on the surface of the first sensor assembly 82 facing the bonding portion 831. Therefore, when the bonding portion 831 is bonded and assembled with the first sensor assembly 82, no additional pressing structure is required, which greatly saves structural cost and assembly process cost.

[0087] The deformable portion 832 is generally plate-shaped and is inclined relative to the fitting portion 831. One end of the deformable portion 832 is connected to the fitting portion 831, and the other end is connected to the abutting portion 833, i.e., the deformable portion 832 is connected between the fitting portion 831 and the abutting portion 833. The abutting portion 833 elastically abuts against the inner surface 812 of the housing body 81 and corresponds to the position of the trigger area 813. The deformable portion 832 can elastically deform after the housing body 81 is pressed, and apply corresponding pressure to the first sensor assembly 82 through the fitting portion 831. The first sensor assembly 82 is used to measure the pressure value generated by the deformation of the deformable portion 832 and trigger the corresponding button operation according to the pressure value.

[0088] It is understood that the fitting part 831, the deformable part 832, and the supporting part 833 can be integrally formed, or connected by welding or other various methods. The fitting part 831, the deformable part 832, and the supporting part 833 can be made of various elastic metals or non-metals. The fitting part 831, the deformable part 832, and the supporting part 833 together constitute a cantilever beam spring structure.

[0089] In this embodiment, the fitting portion 831 can be generally sheet-shaped, with a through hole 835 in its center. The size and shape of the through hole 835 match the size and shape of the deformable portion 832, and the position of the deformable portion 832 corresponds to the position of the through hole 835. When the housing body 81 is subjected to downward pressure and deforms, a portion of the deformable portion 832 can enter the through hole 835, preventing the deformable portion 832 from colliding with the fitting portion 831 and saving design space.

[0090] In this embodiment, the diameter of the bonding portion 831 can be 9-11 millimeters (mm), for example, 9mm, 9.2mm, 9.5mm, 9.8mm, 10mm, 10.2mm, 10.6mm, 11mm, or other values. This application does not impose specific limitations on this. The thickness of the bonding portion 831 can be 0.08-0.15mm, for example, 0.08mm, 0.1mm, 0.12mm, 0.13mm, 0.15mm, or other values. This application does not impose specific limitations on this.

[0091] In this embodiment, the width of the deformable portion 832 can be 1.5-2.5 mm, for example, 1.5 mm, 1.8 mm, 2 mm, 2.1 mm, 2.4 mm, 2.5 mm, or other values. This application does not impose specific limitations on this. The sum of the lengths of the deformable portion 832 and the abutting portion 833 can be 5.5-6.5 mm, for example, 5.5 mm, 5.7 mm, 5.9 mm, 6 mm, 6.3 mm, 6.5 mm, or other values. This application does not impose specific limitations on this.

[0092] In other embodiments, the shape of the bonding portion 831 may also be a strip, a U-shaped sheet, or other shapes to adapt to different design requirements.

[0093] In this embodiment, one end of the abutting part 833 elastically abuts against the inner surface 812 of the housing body 81, corresponding to the position of the trigger area 813, and the other end is connected to the deformable part 832. When the trigger area 813 of the housing body 81 is compressed and deformed inward, the abutting part 833 moves synchronously toward the interior of the housing 10 along with the housing body 81, while the abutting part 833 slides relative to the inner surface 812 of the housing body 81. At this time, the end of the deformable part 832 connected to the abutting part 833 undergoes elastic deformation as the abutting part 833 moves.

[0094] In this embodiment, the abutment portion 833 can be generally arc-shaped, abutting against and tangent to the inner surface 812 of the housing body 81. This allows the abutment portion 833 to slide relative to the inner surface 812 of the housing body 81 while moving downwards synchronously with the housing body 81. It is understood that the shape of the abutment portion 833 can also be hemispherical or spherical. Therefore, by setting the shape of the abutment portion 833 to arc, hemispherical, or spherical, the frictional force between the abutment portion 833 and the housing body 81 can be effectively reduced.

[0095] Please see Figure 9 , Figure 9 This is a schematic diagram of another button assembly disclosed in an embodiment of this application. Figure 9 As shown, the button assembly 80 further includes a protective member 87, which is attached to the inner surface 812 of the housing body 81 and corresponds to the position of the trigger area 813. The abutting part 833 abuts against the surface of the protective member 87 opposite to the housing body 81, and the fitting part 831 fits against the surface of the first sensor assembly 82 opposite to the support member 84. The position of the protective member 87 corresponds to the position of the trigger area 813.

[0096] Specifically, the protective member 87 is attached to the inner surface 812 of the housing body 81 and corresponds to the position of the trigger area 813. The signal transmission member 83 is disposed between the protective member 87 and the first sensor assembly 82, that is, the contact portion 831 of the signal transmission member 83 is attached to the surface of the first sensor assembly 82 facing away from the support member 84, and the abutting portion 833 abuts against the inner surface 812 of the protective member 87 facing away from the housing body 81 and corresponds to the position of the trigger area 813.

[0097] In this embodiment, the protective member 87 can be a sheet-like structure made of a metal or non-metal material with a certain degree of hardness. It is used to prevent the abutting portion 833 of the signal transmitting member 83 from directly contacting the housing body 81 and damaging the housing body 81, for example, by causing wear or scratches on the housing body 81. Furthermore, because the protective member 87 has a certain degree of hardness, when the housing body 81 is pressed, the pressure can be better transmitted to the signal transmitting member 83 through the protective member 87.

[0098] It is understood that the protective component 87 is made of a metal material with a certain degree of hardness. By setting a protective component made of metal, accidental touch operation can be prevented when the mobile terminal 1 is placed in a pocket, on a table or other similar location.

[0099] In this embodiment, the protective member 87 is attached to the inner surface 812 of the housing body 81. The protective member 87 and the housing body 81 can be connected by glue, foam double-sided tape or other means. This application does not make specific limitations in this regard.

[0100] In an exemplary embodiment, the orthographic projection of the entire signal transmitting element 83 onto the support 84 is located within the range of the orthographic projection of the protective element 87 onto the support 84, that is, the boundary of the orthographic projection of the entire signal transmitting element 83 onto the support 84 falls within the boundary range of the orthographic projection of the protective element 87 onto the support 84, or the boundary of the orthographic projection of the entire signal transmitting element 83 onto the support 84 overlaps with the boundary of the orthographic projection of the protective element 87 onto the support 84.

[0101] Please refer to it again. Figure 7 In this embodiment, the deformable portion 832 has notches 8322 on opposite sides along its width, and the two notches 8322 are located at the connection between the deformable portion 832 and the fitting portion 831. It is understood that by providing notches 8322 on the deformable portion 832 near the fitting portion 831, the deformation of the deformable portion 832 during bending is concentrated at the notches 8322, making it easier for the first sensor assembly 82 to collect and acquire strain information, thereby improving the sensitivity of the first sensor assembly 82.

[0102] In summary, the button assembly 80 provided in this application is applied to a mobile terminal 1. The button assembly 80 includes a housing body 81, a first sensor assembly 82, and a signal transmitter 83. The housing body 81 is disposed on the back of the mobile terminal body and includes an inner surface 812 and an outer surface 811 disposed opposite to each other. The inner surface 812 forms a gap with the back of the mobile terminal body, and the outer surface includes a trigger area 813. The first sensor assembly 82 is disposed on the back of the mobile terminal body and corresponds to the trigger area 813. The signal transmitter 83 is connected to the first sensor assembly 82 and the inner surface 812 of the housing body 81 and is used to transmit signals from the trigger area 813. The first sensor assembly 82 is used to receive signals from the trigger area 813, causing the button assembly 80 to trigger corresponding button operations. Therefore, the button assembly 80 of this application, by employing a sensor assembly and a signal transmitter 83 on the inner side of the housing body 81, enables the signals received by the housing trigger area to be smoothly transmitted to the sensor assembly, allowing the user to control the mobile terminal 1 through the buttons on the back. Furthermore, the housing body 81 does not pose a risk of pulling during assembly, avoiding the problem of surface contamination caused by a large exposed area of ​​the housing body. Therefore, the button assembly 80 is not only simple in structure and easy to assemble, but also helps to reduce the overall structural design cost and assembly process cost.

[0103] Furthermore, by providing a second sensor component 86 within the housing 10 of the mobile terminal 1 or near the first sensor component 82, the button assembly 80 can dynamically adjust the trigger threshold of the first sensor component 82 based on the second signal of the mobile terminal 1 to prevent accidental touches of the button assembly 80. For example, the first sensor component 82 can increase the trigger threshold or automatically lock the button function to shield invalid touch signals and avoid accidental triggering.

[0104] Furthermore, by providing a signal transmitter 83 and a first sensor assembly 82 on one side of the housing body 81, and with one end of the signal transmitter 83 always abutting against the inner surface 812 of the housing body 81, when the housing body 81 is subjected to different pressures, the signal transmitter 83 undergoes different degrees of elastic deformation as the housing body 81 deforms under pressure, and applies different magnitudes of pressure to the first sensor assembly 82 attached to one end of the signal transmitter 83. The first sensor assembly 82 can then collect and acquire the pressure value applied by the signal transmitter 83, and output different electrical signals according to the different pressure values, thereby triggering corresponding button operations. This achieves the effect of realizing more button touch operations on the housing body 81 using limited touch positions.

[0105] In order to implement multiple button touch operations with different functions on the housing body 81 of the mobile terminal 1, the following will refer to... Figures 4 to 8 The button assembly 80 shown is used as an example to describe how multiple button touch operations are implemented to control different electronic components and functional modules of the mobile terminal 1.

[0106] In one embodiment of this application, the button assembly 80 may include a first sensor assembly 82 and a plurality of signal transmitters 83. The first sensor assembly 82 has a plurality of sensing zones. One end of each signal transmitter 83 is attached to the surface of the first sensor assembly 82 facing away from the support member 84, and the other end of the signal transmitter 83 abuts against the inner surface 812 of the housing body 81. Each signal transmitter 83 corresponds to a trigger area 813, and the plurality of signal transmitters 83 correspond one-to-one with the plurality of sensing zones of the first sensor assembly 82.

[0107] In another embodiment of this application, the button assembly 80 includes a plurality of first sensor assemblies 82 and a signal transmitter 83. The signal transmitter 83 includes a plurality of contact portions 831, which are respectively attached to the surfaces of the first sensor assemblies 82 opposite to the support member 84. The opposite end of the signal transmitter 83 abuts against the inner surface 812 of the housing body 81 and corresponds to one of the trigger areas 813. That is, the plurality of first sensor assemblies 82 share one signal transmitter 83, and the plurality of first sensor assemblies 82 correspond one-to-one with the plurality of contact portions 831 of the signal transmitter 83.

[0108] For ease of description, this application embodiment uses the example of the button assembly 80 including a first sensor assembly 82 and a plurality of signal transmission elements 83 for description.

[0109] Please refer to the following: Figure 10 , Figure 10 This is a schematic diagram illustrating the layout of the trigger area of ​​the housing body disclosed in an embodiment of this application. For example... Figure 10 As shown, there are two signal transmitters 83. The first sensor assembly 82 has two sensing zones, and the two signal transmitters 83 correspond one-to-one with the two sensing zones. The two signal transmitters 83 are respectively located near the two long edges of the housing body 81. Correspondingly, the two trigger areas 813 corresponding to the signal transmitters 83 are located on the outer surface 811 of the housing body 81 near the long edge, and are close to the frame 111 of the mobile terminal 1, to meet the button touch operation requirements of the mobile terminal 1.

[0110] Please see Figure 11 , Figure 11This is a schematic diagram illustrating another layout of the trigger area of ​​the housing body disclosed in an embodiment of this application. For example... Figure 11 As shown, there are three signal transmitting elements 83. The first sensor assembly 82 has three sensing zones, and the three signal transmitting elements 83 correspond one-to-one with the three sensing zones. Two of the signal transmitting elements 83 are respectively located near the two long edges of the housing body 81, and the other is located near the short edge of the housing body 81. Correspondingly, two trigger areas 813 corresponding to the two signal transmitting elements 83 are located on the outer surface 811 of the housing body 81 near the long edge and adjacent to the frame 111 of the mobile terminal 1. The other trigger area 813 is located on the outer surface 811 of the housing body 81 near the short edge and adjacent to the frame 111 of the mobile terminal 1, to meet the button touch operation requirements of the mobile terminal 1.

[0111] Please see Figure 12 , Figure 12 This is another schematic diagram showing the layout of the trigger area of ​​the housing body disclosed in the embodiments of this application. For example... Figure 12 As shown, there are four signal transmitters 83. The first sensor assembly 82 has four sensing zones, and the four signal transmitters 83 correspond one-to-one with the four sensing zones. The four signal transmitters 83 are respectively arranged along the X-axis and Y-axis directions of the housing body 81. Two signal transmitters 83 are arranged along the length direction at the edge of each long side of the housing body 81. Correspondingly, two trigger areas 813 are arranged along the length direction at the edge of each long side of the outer surface 811 of the housing body 81. Thus, the four trigger areas 813 are spaced apart along the X-axis and Y-axis directions on the outer surface 811 of the housing body 81 and are adjacent to the frame 111 of the mobile terminal 1 to meet the button touch operation requirements of the mobile terminal 1.

[0112] It is understood that the number and arrangement of the button components 80 are not limited to this, and can be set as needed.

[0113] In this embodiment, the first sensor component 82 can be a sensor with multiple trigger signals. The sensor receives signals of different pressures in the trigger area 813, thereby triggering different trigger levels, so that the button component 80 triggers corresponding button operations to control different electronic components and functional modules of the mobile terminal 1.

[0114] Please refer to the following: Figure 6In this embodiment, the housing body 81 can be a transparent housing. The support member 84 includes a groove 841 and a through hole 842. The first sensor assembly 82 includes a flexible printed circuit board (FPC) 822. The first sensor assembly 82 is electrically connected to the circuit board through the flexible printed circuit board 822. The groove 841 is used to accommodate the flexible printed circuit board 822. The through hole 842 is used to allow the flexible printed circuit board 822 to pass through the support body of the mobile terminal 1 and then be electrically connected to the circuit board of the mobile terminal 1. That is, the flexible printed circuit board 822 is disposed in the groove 841 and connected to the circuit board of the mobile terminal 1 along the through hole 842. Therefore, by providing the through hole 842 for the flexible printed circuit board 822 to pass through and be electrically connected to other internal components, not only is more design space provided and more new appearance experiences given to users, but the connection reliability of the mobile terminal 1 is also improved.

[0115] In this embodiment, the button assembly 80 may further include a decorative piece that covers the groove and the through hole. Specifically, the decorative piece may be sheet-like, conforming to the surface of the support member 84 facing the housing body 81, and may be arranged around the outer edge of the first sensor assembly 82, so that the appearance is not affected by the shape of other electronic components. The decorative piece corresponds to the groove and the through hole of the support member 84, and can cover the groove and the through hole, which helps to improve the appearance and overall aesthetics of the mobile terminal 1.

[0116] It is understood that in other embodiments of this application, the button assembly 80 may further include multiple decorative pieces, each corresponding to the position of electronic components such as ribbon cables, coils, processors, battery modules, circuit boards, and other functional components of the mobile terminal 1. These decorative pieces are used to conceal the electronic components and are visible through the transparent back cover 61, which helps improve the appearance and overall aesthetics of the mobile terminal 1. The decorative pieces can cover at least part of the clearance holes, mounting holes, receiving slots, or injection holes. Furthermore, the decorative pieces can also provide users with labeled information about the electronic components. Users can learn about the distribution of electronic components inside the mobile terminal 1 through the decorative pieces, allowing them to easily understand the installation location, naming, and function of the electronic components, thus enhancing the information delivery of the mobile terminal 1. For example, if the decorative piece is labeled as a coil and presented to the user through the back cover 61, then the user can know through the decorative piece that the electronic component is a coil, the installation location of the coil, and the function of the coil. This obviously enhances the technological feel and personalized design of the mobile terminal 1.

[0117] Based on the same technical concept, embodiments of this application also provide a mobile terminal. Please refer to... Figure 1 , Figure 2 , Figure 3 and Figure 4 The mobile terminal 1 provided in this application includes a housing 10, a main display module 20, a battery module 30, a camera module 40, a rear display module 50, a back cover assembly 60, and a button assembly 80. Since the housing 10, main display module 20, battery module 30, camera module 40, rear display module 50, back cover assembly 60, and button assembly 80 have been described in detail in the above embodiments, they will not be repeated here. Therefore, the mobile terminal 1 provided in this application has the technical effects of the technical solutions in any of the above embodiments, and the explanations of structures and terms that are the same as or corresponding to those in the above embodiments will not be repeated here.

[0118] In this embodiment, the button assembly 80 includes a housing body 81 disposed on the back of a mobile terminal body. The housing body 81 includes an inner surface 812 and an outer surface 811 disposed opposite to each other. The inner surface 812 forms a gap with the back of the mobile terminal body, and the outer surface includes a trigger area 813. The button assembly further includes a first sensor assembly 82 and a signal transmitter 83. The first sensor assembly 82 is disposed on the back of the mobile terminal body and corresponds to the trigger area 813. The signal transmitter 83 is connected to the first sensor assembly 82 and the inner surface 812 of the housing body 81, and is used to transmit signals from the trigger area 813. The first sensor assembly 82 is used to receive signals from the trigger area 813, causing the button assembly 80 to trigger a corresponding button operation.

[0119] In this embodiment, the camera module 40 may include multiple cameras for taking photos and videos. The multiple cameras may be any different type of camera selected from periscope cameras, conventional cameras, wide-angle cameras, ultra-wide-angle cameras, telephoto cameras, monochrome cameras, and depth cameras.

[0120] It is understood that the camera module 40 may also include an image sensor, a filter, an image signal processor, a flash, focusing and optical image stabilization elements, and other auxiliary components to increase the imaging quality of the camera module 40.

[0121] In this embodiment, the back cover 61 may further include a brightening area, which is disposed on the second surface of the back cover 61 and corresponds to the position of the flash of the camera module 40. By setting multiple concentric ring patterns or spiral patterns in the brightening area of ​​the back cover 61, the light from the flash can be utilized more efficiently, improving the illumination brightness of the brightening area and thus enhancing the shooting effect of the camera module 40.

[0122] Understandably, in some embodiments, the mobile terminal 1 may have communication capabilities, i.e., it can establish communication with the network via 4G (fourth-generation mobile communication technology), 5G (fifth-generation mobile communication technology), 6G (sixth-generation mobile communication technology), or W-LAN (wireless local area network), or other communication methods that may emerge in the future. For the sake of simplicity, this application embodiment does not further limit this aspect.

[0123] In an exemplary embodiment, the mobile terminal 1 may further include a processor and a memory. The processor is electrically connected to the main display module 20, the camera module 40, and the rear display module 50, and is used to control the main display module 20 and the rear display module 50 to display content, and to control the camera module 40 to take pictures. The memory is electrically connected to the processor, and is used to store the program code required for the processor to run, and to control the display content of the main display module 20 and the rear display module 50, etc.

[0124] In an exemplary embodiment, the memory may include volatile memory, such as random access memory (RAM); the memory may also include non-volatile memory (NVM), such as read-only memory (ROM), flash memory (FM), hard disk drive (HDD), or solid-state drive (SSD). The memory may also include combinations of the above types of memory.

[0125] In an exemplary embodiment, the processor includes one or more general-purpose processors, wherein the general-purpose processor can be any type of device capable of processing electronic instructions, including a central processing unit (CPU), microprocessor, microcontroller, main processor, and controller, etc. The processor is used to execute various types of digital storage instructions, such as software or firmware programs stored in the memory, which enable the computing device to provide a wide range of services.

[0126] In summary, the mobile terminal 1 provided in this application embodiment includes the aforementioned button assembly 80. The button assembly 80 includes a housing body 81, a first sensor assembly 82, and a signal transmitter 83. The housing body 81 is disposed on the back of the mobile terminal body and includes an inner surface 812 and an outer surface 811 disposed opposite to each other. The inner surface 812 forms a gap with the back of the mobile terminal body, and the outer surface includes a trigger area 813. The first sensor assembly 82 is disposed on the back of the mobile terminal body and corresponds to the trigger area 813. The signal transmitter 83 is connected to the first sensor assembly 82 and the inner surface 812 of the housing body 81 and is used to transmit signals from the trigger area 813. The first sensor assembly 82 is used to receive signals from the trigger area 813, causing the button assembly 80 to trigger corresponding button operations. Therefore, the button assembly 80 of this application employs a sensor assembly and a signal transmission element 83 on the inner side of the housing body 81, so that the signal received by the housing trigger area 813 can be smoothly transmitted to the sensor assembly, allowing the user to control the mobile terminal 1 through the buttons on the back.

[0127] Meanwhile, the button assembly 80 of this application employs an elastic pressure-sensitive structure design on the inner side of the housing body 81, attaching one end of the signal transmission element 83 to the first sensor assembly 82, and assembling the first sensor assembly 82 and the signal transmission element 83 together onto the support member 84. Therefore, the housing body 81 does not require an FPC redundancy design to assemble electronic components such as sensing devices. Moreover, there is no risk of pulling during the assembly process of the housing body 81, avoiding the problem of surface contamination caused by a large exposed area of ​​the housing body. Therefore, the button assembly 80 is not only simple in structure and easy to assemble, but also helps to reduce the overall structural design cost and assembly process cost.

[0128] Furthermore, by providing a second sensor component 86 within the housing 10 of the mobile terminal 1 or near the first sensor component 82, the button assembly 80 can dynamically adjust the trigger threshold of the first sensor component 82 based on the second signal of the mobile terminal 1 to prevent accidental touches of the button assembly 80. For example, the first sensor component 82 can increase the trigger threshold or automatically lock the button function to shield invalid touch signals and avoid accidental triggering.

[0129] Furthermore, by providing a signal transmitter 83 and a first sensor assembly 82 on one side of the housing body 81, and with one end of the signal transmitter 83 always abutting against the inner surface 812 of the housing body 81, when the housing body 81 is subjected to different pressures, the signal transmitter 83 undergoes different degrees of elastic deformation as the housing body 81 deforms under pressure, and applies different magnitudes of pressure to the first sensor assembly 82 attached to one end of the signal transmitter 83. The first sensor assembly 82 can then collect and acquire the pressure value applied by the signal transmitter 83, and output different electrical signals according to the different pressure values, thereby triggering corresponding button operations. This achieves the effect of realizing more button touch operations on the housing body 81 using limited touch positions.

[0130] It should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0131] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0132] It should be understood that the application of this application is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims. Those skilled in the art will understand that implementing all or part of the methods of the above embodiments, and equivalent changes made in accordance with the claims of this application, still fall within the scope of this application.

Claims

1. A button assembly, applied in a mobile terminal, characterized in that, The button assembly includes a housing body disposed on the back of the mobile terminal body. The housing body includes an inner surface and an outer surface disposed opposite to each other. The inner surface forms a gap with the back of the mobile terminal body, and the outer surface includes a trigger area. The button assembly also includes: A first sensor assembly is disposed on the back of the mobile terminal body and corresponds to the trigger area; A signal transmitter is connected to the inner surface of the first sensor assembly and the housing body, and is used to transmit signals from the trigger area. The first sensor assembly is used to receive signals from the trigger area, so that the button assembly triggers a corresponding button operation.

2. The button assembly as described in claim 1, characterized in that, The button assembly further includes a support member disposed inside the housing body and spaced apart from the housing body. The first sensor assembly is attached to the surface of the support member facing the housing body. One end of the signal transmitting member abuts against the first sensor assembly, and the other end of the signal transmitting member elastically abuts against the inner surface of the housing body. When the signal transmitter is subjected to pressure in the trigger area, it undergoes elastic deformation and applies pressure to the first sensor assembly. The first sensor assembly is used to acquire the pressure signal generated by the deformation of the signal transmitter and trigger the corresponding button operation based on the pressure signal.

3. The button assembly as described in claim 1, characterized in that, The button assembly further includes a second sensor assembly, which is used to detect a second signal of the mobile terminal and dynamically adjust the trigger threshold of the first sensor assembly according to the second signal of the mobile terminal.

4. The button assembly as described in claim 3, characterized in that, The second sensor includes one or more of the following: attitude information sensor, ambient light information sensor, and human body information sensor.

5. The button assembly as described in claim 2, characterized in that, The signal transmitting component includes a fitting part, a deformable part, and a supporting part. The fitting part is fitted to the surface of the first sensor assembly facing away from the support member. The deformable part is connected between the fitting part and the supporting part. The supporting part elastically abuts against the inner surface of the housing body and corresponds to the position of the trigger area.

6. The button assembly as described in claim 5, characterized in that, The first sensor assembly is a pressure sensor, the signal transmission element is an elastic sheet, the fitting part has a through hole, the size and shape of the through hole match the size and shape of the deformable part, and the position of the deformable part corresponds to the position of the through hole.

7. The button assembly as described in claim 2, characterized in that, The trigger area is located on the outer surface of the housing body near the edge and adjacent to the frame of the mobile terminal.

8. The button assembly as described in claim 5, characterized in that, The button assembly further includes a protective member, which is attached to the inner surface of the housing body. The abutting portion abuts against the surface of the protective member opposite to the housing body, and the fitting portion is attached to the surface of the first sensor assembly opposite to the support member. The position of the protective member corresponds to the position of the trigger area.

9. The button assembly as described in claim 5, characterized in that, The button assembly is provided with multiple signal transmitting elements, and each of the multiple signal transmitting elements corresponds one-to-one with a multiple sensing zone of the first sensor assembly; or, The button assembly is provided with a plurality of first sensor assemblies, and the signal transmission component includes a plurality of the bonding portions, with each of the plurality of first sensor assemblies corresponding one-to-one with a plurality of bonding portions of the signal transmission component.

10. The button assembly as described in claim 5, characterized in that, The bonding part is sheet-shaped, the thickness of the bonding part is 0.08-0.15 mm, the width of the deformable part is 1.5-2.5 mm, and the sum of the lengths of the deformable part and the supporting part is 5.5-6.5 mm.

11. The button assembly as described in claim 2, characterized in that, The housing body is a transparent housing, the support member includes a groove and a through hole, and the first sensor assembly includes a flexible circuit board, which is disposed in the groove and connected to the circuit board of the mobile terminal along the through hole; The button assembly also includes a decorative piece that covers the groove and the through hole.

12. The button assembly as described in any one of claims 1 to 11, characterized in that, The first sensor assembly is a sensor with multiple trigger signals. The sensor receives signals from different pressures in the trigger zone to trigger different trigger levels, thereby causing the button assembly to trigger corresponding button operations.

13. A mobile terminal, characterized in that, Includes the button assembly as described in any one of claims 1 to 12.

14. The mobile terminal as described in claim 13, characterized in that, The back cover of the mobile terminal is provided with one or more of a rear display module, a camera module, and a main display module composed of multiple LEDs. The button assembly is used to control one or more of the rear display module, the camera module, and the main display module.

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