Key module, key device and electronic equipment

Abstract

The application provides a key module, a key device and an electronic device. The key module is used for being installed on a shell of the key device. The shell is provided with a first through hole. The first through hole is communicated with the inside and outside of the shell. The key module comprises a cover plate, a key rod and a pressure sensitive sheet. The top surface of the cover plate is exposed on the outer surface of the shell. The first end of the key rod is arranged on the bottom surface of the cover plate, and the second end of the key rod enters the inside of the shell through the first through hole. The second end of the key rod is connected with the pressure sensitive sheet. When the outer surface of the cover plate is not forced, the pressure sensitive sheet is in a first state. When the outer surface of the cover plate is forced in a first direction, the first direction refers to the direction in which the first end of the key rod is towards the second end of the key rod, the key rod moves along the first direction, and the pressure sensitive sheet is switched from the first state to a second state. The first pressure sensitive circuit is used for detecting the deformation of the pressure sensitive sheet. The key module is more rapid in recognizing and reacting to the operation of the user, is higher in sensitivity, and is better in use feeling of the user.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and in particular to a button module, a button device, and an electronic device. Background Technology

[0002] In today's society, people have increasingly higher demands for the functionality of electronic devices. Users expect these devices to be highly responsive and to quickly recognize user actions. Therefore, how to enable electronic devices to quickly recognize user actions is a key research focus. Utility Model Content

[0003] This application provides a button module, a button device, and an electronic device.

[0004] In a first aspect, embodiments of this application provide a button module. The button module is used to install on the housing of a button device. The housing has a first through hole. The first through hole connects the interior and exterior of the housing. The button module includes a cover plate, a button lever, and a pressure-sensitive sheet. The top surface of the cover plate protrudes from the outer surface of the housing. A first end of the button lever is disposed on the bottom surface of the cover plate, and a second end of the button lever enters the interior of the housing through the first through hole. The second end of the button lever is connected to the pressure-sensitive sheet. When the outer surface of the cover plate is not subjected to force, the pressure-sensitive sheet is in a first state. When the outer surface of the cover plate is subjected to pressure in a first direction, where the first direction refers to the direction from the first end of the button lever towards the second end of the button lever, the button lever moves along the first direction, causing the pressure-sensitive sheet to switch from the first state to the second state. A first pressure-sensitive circuit is used to detect the deformation of the pressure-sensitive sheet.

[0005] Understandably, the first end of the button lever is located on the bottom surface of the cover plate, and the second end of the button lever is connected to the pressure-sensitive sheet. The button lever can be used to transmit the force on the cover plate to the pressure-sensitive sheet. When the pressure-sensitive sheet is in the first state, there may be no interaction force between the pressure-sensitive sheet and the button lever in the first direction, or the pressure-sensitive sheet may be subjected to a tensile force in the opposite direction to the first direction applied by the button lever. When the cover plate is subjected to pressure, the button lever can move with the cover plate. The movement of the button lever in the first direction transmits the pressure to the pressure-sensitive sheet, breaking the force balance of the pressure-sensitive sheet, and the pressure-sensitive sheet switches from the first state to the second state. The change of the pressure-sensitive sheet from the first state to the second state can be understood as the pressure-sensitive sheet undergoing deformation. The different degrees of deformation of the pressure-sensitive sheet between the two states reflect the magnitude of the pressure on the cover plate. The first pressure-sensitive circuit can be used to detect the magnitude of the deformation of the pressure-sensitive sheet when it switches from the first state to the second state. In the solution of this application, when the cover plate is subjected to a force greater than 0 or a force greater than a preset threshold, the force balance of the pressure-sensitive sheet is broken, the pressure-sensitive sheet switches from the first state to the second state, the pressure-sensitive sheet can deform immediately, the pressure detection sensitivity is higher, the button module responds more quickly to the user's operation recognition, the sensitivity is higher, and the user experience is better.

[0006] It should be noted that the deformation of the pressure sensor can include the following situations: the pressure sensor in the first state is not deformed, while the pressure sensor in the second state is deformed; the pressure sensor in the first state is deformed, while the pressure sensor in the second state is not deformed; the pressure sensor in both the first and second states is deformed, but the degree of deformation is different, such as the degree of deformation (or the degree of deformation) increasing or decreasing.

[0007] It should be noted that the first end of the button lever is "set on" the bottom surface of the cover plate, which may include a scheme in which the first end of the button lever is not fixedly connected to the bottom surface of the cover plate. For example, there is a gap between the first end of the button lever and the bottom surface of the connecting cover plate, and the first end of the button lever is set below the connecting cover plate. When the cover plate is subjected to pressure, the button lever can move with the movement of the cover plate.

[0008] In one possible implementation, when the outer surface of the cover plate is not under force, the pressure-sensitive sheet is subjected to a force in the opposite direction to the first direction.

[0009] Understandably, during the assembly of the button module, the pressure-sensitive sheet can be pre-stretched, allowing it to be subjected to force in the opposite direction to the first direction. Compared to the method where the button lever moves along the first direction and the pressure-sensitive sheet is squeezed to deform it, in this embodiment, the pressure-sensitive sheet is subjected to a pre-tension force in the opposite direction to the first direction. When the cover plate is subjected to a force greater than 0 or a force greater than a preset threshold, the pressure-sensitive sheet can be immediately released and deformed. This results in higher pressure sensitivity, a faster response of the button module to user operations, and a better user experience. When the outer surface of the cover plate is not under force, the pressure-sensitive sheet and the button lever remain stably connected due to the pre-tension force of the pressure-sensitive sheet. Simultaneously, the cover plate and the button lever can also be subjected to force along the first direction, which can help fix the cover plate and the button lever relative to the housing position, reducing the risk of the cover plate and the button lever detaching from the housing.

[0010] In one possible implementation, when the outer surface of the cover is not under force, the surface of the pressure-sensitive pad away from the cover abuts against the button lever.

[0011] Understandably, in traditional technical solutions, due to design and assembly tolerances, there is a gap between the button lever and the pressure-sensitive pad in the first direction. When the cover is subjected to force, the button lever needs to move a certain distance in the first direction to abut against the pressure-sensitive pad. In other words, when the user presses the cover immediately, the pressure-sensitive pad cannot deform immediately; it can only deform after the button lever has moved past the gap. Therefore, there is a lag in the deformation time of the pressure-sensitive pad, and the pressure-sensitive circuit also has a lag in detecting the deformation time of the pressure-sensitive pad, resulting in insensitive button module recognition. In the technical solution of this application, the surface of the pressure-sensitive pad away from the cover can abut against the button lever. When the cover is subjected to force, the force balance of the pressure-sensitive pad is immediately broken, and the pressure-sensitive pad can deform according to the force of the cover immediately, making the button module more sensitive in recognizing user operation.

[0012] In one possible implementation, the first end of the button lever is fixed to the bottom surface of the cover plate. This improves the reliability of the connection between the button lever and the cover plate, ensuring that the button lever and the cover plate move synchronously when the cover plate is subjected to force.

[0013] In one possible implementation, the button module further includes a first pressure-sensitive circuit, which is fixedly connected to a pressure-sensitive sheet.

[0014] It is understandable that the first pressure-sensitive circuit is fixedly connected to the pressure-sensitive sheet, and the connection between the first pressure-sensitive circuit and the pressure-sensitive sheet has good reliability.

[0015] In one possible implementation, the cover is mounted to the housing. It is understood that the cover can be mounted directly to the housing or indirectly to the housing via other structures.

[0016] In one possible implementation, the button module also includes an elastic element that abuts against the bottom surface of the cover and the housing.

[0017] Understandably, when the user presses the cover, the cover is subjected to force, the button lever moves in the first direction, and the elastic element is compressed. When the user finishes pressing the cover, the cover is no longer subjected to force, the elastic element rebounds, and a force is applied to the cover in the opposite direction of the first direction to automatically return it to its initial position, thereby achieving button rebound.

[0018] Understandably, when the user is not pressing the cover, the elastic element can provide a force in the opposite direction to the first direction. This allows the pressure-sensitive pad to experience a pre-tension in the opposite direction of the first direction, which cancels out the rebound force of the pressure-sensitive pad, achieving force balance. When the user presses the cover, this force balance is immediately broken. Incorporating an elastic element can help improve pressure sensitivity.

[0019] In one possible implementation, the elastic element is soft rubber, rubber pad, foam, sheet, spring, wave spring, C-shaped spring, or spring.

[0020] Understandably, using spring sheets, leaf springs, wave springs, C-shaped springs, or spring structures to achieve button module rebound is beneficial for improving the stiffness of the elastic components and the creep index of the button module, making the rebound of the button module more sensitive.

[0021] In one possible implementation, the button module is mounted within a mounting slot in the housing. The button module also includes a side plate, which is fixedly connected to the cover plate. The button module further includes a rubber ring, which is fixedly connected to the side plate and abuts against the wall of the mounting slot to seal the gap between the housing and the side plate.

[0022] Understandably, rubber rings are used to prevent moisture or dust from entering the internal space of electronic devices through the gap between the side panel and the housing, thus interfering with the operation of components inside the electronic device (such as the motherboard).

[0023] In one possible implementation, the rubber ring includes a sidewall and a bottom wall, with the bottom wall of the rubber ring connected to the inner side of the sidewall. The side plate is annular, and the sidewall of the rubber ring is fitted onto the outer side of the side plate and abuts against the groove wall of the mounting groove. The bottom surface of the side plate faces away from the cover plate, and the bottom wall of the rubber ring is fixedly connected to the bottom surface of the side plate.

[0024] Understandably, compared to solutions where the rubber ring only connects to the outer side of the sidewall, in this embodiment, the cross-section of the rubber ring can be approximately L-shaped, resulting in a larger connection area between the rubber ring and the sidewall, and better connection strength. When the button module is installed on the housing, the rubber ring is less likely to detach from the side panel due to friction with the housing. The rubber ring also offers better waterproof sealing reliability.

[0025] In one possible implementation, the button lever has a groove with the opening of the groove located on the peripheral side of the button lever, and the groove is used to engage the pressure-sensitive sheet.

[0026] Understandably, compared to the pressure-sensitive sheet being fixedly connected to the button lever, in this embodiment, the pressure-sensitive sheet can be snapped onto the button lever, which requires lower assembly precision and is easier to manufacture.

[0027] It should be noted that the pressure-sensitive sheet and the button lever can be directly fixed together, or they can be indirectly fixed together through other structures.

[0028] In one possible implementation, there is a gap between the pressure-sensitive sheet and the button lever in a direction perpendicular to the first direction.

[0029] Understandably, setting a gap can reduce the risk of the pressure sensor rubbing against the button lever during deformation, which helps improve the quality and accuracy of pressure detection.

[0030] In one possible implementation, the pressure-sensitive sheet is fixedly connected to the second end of the button lever.

[0031] Understandably, by directly fastening the pressure-sensitive sheet to the button lever, the first and second pressure-sensitive circuits are linked with the button lever, reducing the risk of large-range deformation and yielding of the pressure-sensitive sheet, while improving the deviation when pressed.

[0032] In one possible implementation, the button lever includes a first segment and a second segment. Along a first direction, the first segment is detachably connected to the second segment. The end of the first segment furthest from the second segment is the first end of the button lever, and the end of the second segment furthest from the first segment is the second end of the button lever. A pressure-sensitive sheet is fixedly connected between the first and second segments.

[0033] Understandably, the button lever consists of a detachable first section and a second section, with the first pressure-sensitive circuit fixedly connected between the first and second sections. The pressure-sensitive sheet and the button lever are easy to assemble and disassemble, facilitating subsequent maintenance.

[0034] In one possible implementation, the first pressure-sensitive circuit is fixedly connected to the side of the pressure-sensitive sheet near the cover plate.

[0035] It is understandable that the first pressure-sensitive circuit is fixedly connected to the side of the pressure-sensitive sheet near the cover plate. That is, the first pressure-sensitive circuit is located between the pressure-sensitive sheet and the housing. When an electrical signal can be drawn from between the pressure-sensitive sheet and the housing through the flexible circuit board, the problem of the flexible circuit board being torn after repeated pulling can be reduced, as well as the risk of the flexible circuit board and the first pressure-sensitive circuit board being separated can be reduced.

[0036] In one possible implementation, the pressure-sensitive sheet is strip-shaped and includes a first part, a second part, and a third part connected in sequence along its length. The first part of the pressure-sensitive sheet is fixedly connected to the housing, a first pressure-sensitive circuit is fixedly connected to the second part of the pressure-sensitive sheet, and the third part of the pressure-sensitive sheet is connected to the second end of the button lever.

[0037] It is understandable that the pressure-sensitive sheet is strip-shaped, and the first pressure-sensitive circuit is fixedly connected to the second part of the pressure-sensitive sheet. When the pressure-sensitive sheet deforms, the second part of the pressure-sensitive sheet deforms more, which is beneficial to improving the detection accuracy of the first pressure-sensitive circuit.

[0038] In one possible implementation, the pressure-sensitive sheet further includes a fourth part and a fifth part. Along the length of the pressure-sensitive sheet, the fourth part is connected between the third part and the fifth part, and the fifth part is fixedly connected to the housing. The button module also includes a second pressure-sensitive circuit, which is fixedly connected to the fourth part of the pressure-sensitive sheet.

[0039] Understandably, the button module can be equipped with multiple pressure-sensitive circuits. Multiple pressure-sensitive circuits correspond to the detection of deformation at multiple locations on the pressure-sensitive sheet, increasing the area of ​​deformation detection and thus improving the sensitivity of pressure detection.

[0040] In one possible implementation, the button module also includes functional components, including one or more of an optical heart rate detection module, ECG electrodes, a camera, an ambient light sensor, a fingerprint detection module, an infrared emitter, a distance sensor, and a body fat detection module.

[0041] Understandably, button modules can integrate more functions, which is beneficial for the multi-functionality of button modules.

[0042] In one possible implementation, the button module also includes a carrier plate, and the carrier plate and cover plate enclose a receiving space, in which the optical heart rate detection module is located.

[0043] In one possible implementation, the optical heart rate detection module includes an emitter and a receiver spaced apart, the emitter including a red light source, a yellow light source, a blue light source, and an infrared light source.

[0044] It is understandable that light sources with different wavelengths can penetrate different depths of the user's tissue, thereby detecting blood flow information at different depths under the user's skin. The types of light sources included in the emitter can be selectively set according to needs. When the emitter includes red, yellow, blue, and infrared light sources, the receiver can receive the reflected light corresponding to the four wavelengths and convert it into electrical signals. Compared to emitters that include red, green, and infrared light sources, the emitter in this embodiment includes more light sources, which can effectively acquire effective physiological signals at different depths under the user's finger skin.

[0045] In one possible implementation, a yellow light source and a blue light source constitute a first-band light source group, and a red light source and an infrared light source constitute a second-band light source group. The first-band light source group is located on the side of the second-band light source group closer to the receiver.

[0046] Understandably, compared to the scheme where the first band light source group is located on the side of the second band light source group that is far from the receiver, the light source arrangement in this embodiment is more reasonable and is conducive to improving the detection accuracy of the optical heart rate detection module.

[0047] In one possible implementation, the button module further includes ECG electrodes and a conductive element. A portion of the ECG electrodes is fixed to the top surface of the cover plate, and a portion is fixed to the bottom surface of the cover plate. The conductive element is located within the receiving space and is electrically connected to the ECG electrodes. The conductive element is located on the side of the receiver furthest from the emitter.

[0048] Understandably, by keeping the conductive components away from the light emitter, they are further away from significant signal interference, which helps to achieve low noise and anti-interference effects.

[0049] In one possible implementation, the button module further includes a flexible circuit board comprising a first portion and a second portion. The first portion of the flexible circuit board is located within the receiving space and is electrically connected to the optical heart rate detection module. A first end of the second portion of the flexible circuit board is connected to the first portion, and a second end of the second portion extends out of the receiving space and passes through a second through-hole provided on the housing to enter the interior of the housing. The distance between the first end of the second portion of the flexible circuit board and the emitter is less than the distance between the first end of the second portion of the flexible circuit board and the receiver.

[0050] It is understandable that the flexible circuit board outputs the electrical signal from the light-emitting side, which is beneficial to improving the signal-to-noise ratio of small signals, that is, improving the signal-to-noise ratio of the ECG electrode signal and the receiver signal.

[0051] Secondly, embodiments of this application provide a button device. The button device includes a housing and a button module. The button module is mounted on the housing, and the second end of the button lever of the button module enters the interior of the housing through a first through hole on the housing and is connected to a pressure-sensitive sheet located inside the housing.

[0052] In other words, the button module can be detachably fixed to the housing, and when the button module is damaged, the button module can be replaced separately, reducing maintenance costs.

[0053] Understandably, the pressure-sensitive pad of the button module is located inside the housing. When the button device is dropped or subjected to a large external impact, the housing can protect the pressure-sensitive pad 30, thus improving the reliability of the button device.

[0054] In one possible implementation, the flexible circuit board of the button module enters the interior of the housing through a second through-hole on the housing.

[0055] Understandably, the outer casing may have a second through hole so that the flexible circuit board of the button module can enter the interior of the casing, thereby electrically connecting the components inside the casing.

[0056] In one possible implementation, the button device also includes a screw and a nut, with the nut fixedly connected to the housing and the screw passing through the pressure-sensitive plate and locked to the nut.

[0057] Understandably, compared to the pressure sensor being directly locked to the housing with screws, the pressure sensor in this embodiment is secured by screws and nuts, making it easier to control and adjust the installation position of the pressure sensor on the housing, resulting in better installation consistency.

[0058] Thirdly, embodiments of this application provide an electronic device. The electronic device includes a button device.

[0059] Understandably, when button devices are installed on electronic devices, the button module responds more quickly and is more sensitive to user operations, resulting in a better user experience.

[0060] In one possible implementation, the electronic device also includes a screen, a mid-frame, and a back cover, with the mid-frame connecting the screen and the back cover, and the housing of the button device being part of the mid-frame.

[0061] Understandably, a portion of the electronic device's frame serves as the housing for the button mechanism, eliminating the need for a separate housing for the button mechanism and thus reducing the overall size of the electronic device.

[0062] In one possible implementation, the electronic device is a watch or a wristband.

[0063] It is understandable that when an electronic device is a watch, bracelet, or similar device, its casing can also be called a watch case. Furthermore, when a button module is used in an electronic device, such as a watch or bracelet, the button module is small, resulting in a limited contact area and limited force applied by the user. Traditional button modules require significant force to correctly recognize user actions; when the force applied is small, they cannot quickly and sensitively recognize user actions. The button module of this application only requires a small amount of force to recognize user actions, resulting in a faster response, higher sensitivity, and a better user experience.

[0064] In one possible implementation, the electronic device further includes a first watch band and a second watch band, which are connected to both ends of the mid-frame, and a button device is disposed on the side of the mid-frame closer to the first watch band.

[0065] Understandably, when users are using a watch, the location of the button module makes it easier for them to press, which is beneficial for user operation and improves the user experience.

[0066] In one possible implementation, the pressure-sensitive pad is fixedly connected to the middle frame at a first position, and the pressure-sensitive pad is connected to the second end of the button lever at a second position. The first and second positions are arranged circumferentially along the middle frame.

[0067] Understandably, compared to the arrangement of the first and second positions along the thickness direction of the middle frame, the arrangement of the first and second positions along the circumference of the middle frame in this embodiment provides more installation space and reduces assembly difficulty. Furthermore, the circumference of the middle frame is free from interference from the back cover and screen, making it easier to disassemble the pressure-sensitive sheet when the button module needs repair.

[0068] In one possible implementation, the electronic device also includes a motor mounted in the housing of the electronic device, the motor being electrically connected to a first pressure-sensitive circuit, and the motor vibrating based on data detected by the first pressure-sensitive circuit.

[0069] Understandably, when a user presses the cover, the first pressure-sensitive circuit detects deformation of the pressure-sensitive sheet, causing the motor to vibrate. The first pressure-sensitive circuit and the pressure-sensitive sheet, in conjunction with the motor, can realize the button function of the button module. For example, the overall algorithm sets a corresponding threshold; when a user presses the cover with their finger, the resistance of the pressure-sensitive circuit changes, generating an electrical signal, which is calculated by the pressure-sensitive chip inside the device. The pressure-sensitive chip can be electrically connected to the motor, controlling the motor to generate vibration, achieving a function similar to a touch button. When the button module functions as a touch button in an electronic device, the motor can vibrate to indicate to the user whether the button operation is valid. Attached Figure Description

[0070] To illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0071] Figure 1 This is a schematic diagram illustrating one implementation of the electronic device provided in this application.

[0072] Figure 2 yes Figure 1 An exploded view of one embodiment of the table body shown;

[0073] Figure 3 yes Figure 2 A schematic diagram of one embodiment of the middle frame shown in the figure;

[0074] Figure 4 yes Figure 2 A schematic diagram of one embodiment of the button module shown in the figure;

[0075] Figure 5 yes Figure 4 An exploded view of one embodiment of the button module shown;

[0076] Figure 6A yes Figure 1 A partial cross-sectional view of one embodiment of the electronic device shown at AA;

[0077] Figure 6B yes Figure 6A A schematic diagram illustrating one embodiment of the cover plate, button lever, and pressure-sensitive sheet;

[0078] Figure 7 yes Figure 1 A partial cross-sectional view of one embodiment of the electronic device shown at BB;

[0079] Figure 8 yes Figure 4 The diagram shows a partial structural view of the button module from another angle.

[0080] Figure 9 yes Figure 5 A partial structural diagram of the structure shown;

[0081] Figure 10 yes Figure 4 The diagram shows a partial structural view of the button module from another angle.

[0082] Figure 11 yes Figure 1 A partial cross-sectional view of one embodiment of the electronic device shown at CC;

[0083] Figure 12 yes Figure 1 A partial structural schematic diagram of another embodiment of the body of the electronic device shown;

[0084] Figure 13 yes Figure 12 The structure shown is a partial cross-sectional view of one embodiment at DD;

[0085] Figure 14 yes Figure 12 The structure shown is a partial cross-sectional view of one embodiment at EE;

[0086] Figure 15 yes Figure 12 A partial structural diagram of one embodiment of the button module shown in another angle;

[0087] Figure 16 yes Figure 12 The diagram shows a partial structural schematic of one embodiment of the button module shown from another angle.

[0088] Figure 17 yes Figure 1 A partial structural schematic diagram of another embodiment of the body of the electronic device shown;

[0089] Figure 18 yes Figure 17 An exploded view of one embodiment of the button module shown;

[0090] Figure 19 yes Figure 18 An exploded view of one embodiment of the button module shown;

[0091] Figure 20A yes Figure 17 The structure shown is a partial cross-sectional view of one embodiment of the structure at FF;

[0092] Figure 20B yes Figure 20AA schematic diagram illustrating one embodiment of the cover plate, button lever, and pressure-sensitive sheet;

[0093] Figure 21 yes Figure 17 The diagram shows a partial cross-sectional view of one embodiment of the structure at GG. Detailed Implementation

[0094] The embodiments of this application are described below with reference to the accompanying drawings. The embodiments described herein are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0095] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. It should be understood that in this application, "electrical connection" can be understood as components physically contacting and conducting electricity; it can also be understood as a form of connection between different components in a circuit structure through physical lines that can transmit electrical signals, such as copper foil or wires on a printed circuit board (PCB). "Connection" and "connected" can both refer to a mechanical connection relationship or a physical connection relationship. For example, A connecting to B or A being connected to B can mean that there are fastening components (such as screws, bolts, rivets, etc.) between A and B, or that A and B are in contact with each other and are difficult to separate.

[0096] Furthermore, the term "fixed" in this document should be interpreted broadly. For example, "fixed" can mean direct fixing or indirect fixing through an intermediate medium. "Fixed" refers to connections where the relative positional relationship remains unchanged after connection. The directional terms used in the embodiments of this application, such as "upper" and "lower," are merely for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. "Multiple" refers to two or more.

[0097] In the embodiments of this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," and "fourth" may explicitly or implicitly include one or more of that feature.

[0098] In the embodiments of this application, the mathematical concepts mentioned, such as parallel and perpendicular, are limitations specific to the current technological level, rather than absolute and strict mathematical definitions. Slight deviations are permissible; approximations of parallelism or perpendicularity are acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 and 10 degrees. Similarly, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 10 and 100 degrees.

[0099] In the description of the embodiments in this application, unless otherwise stated, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.

[0100] It is understood that the specific embodiments described herein are merely illustrative of the relevant application and not intended to limit the application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings.

[0101] Figure 1 This is a schematic diagram of one embodiment of the electronic device 1000 provided in this application.

[0102] Electronic device 1000 may include, but is not limited to, wearable devices such as smartwatches, sports watches, wristbands, augmented reality (AR) glasses, virtual reality (VR) glasses, or headphones. Electronic device 1000 may also be terminal products such as mobile phones, tablets, or home appliances. Figure 1 The electronic device 1000 shown is described using a smartwatch as an example. It should be noted that... Figure 1 The electronic device 1000 is shown only schematically, and the actual size, location, and structure of these components are not limited by the figures. Similarly, the accompanying figures below also only schematically show some components, and their actual size, location, and structure are not limited by the figures themselves. Further details will not be elaborated upon below.

[0103] like Figure 1 As shown, the electronic device 1000 may include a watch body 1001 and a watch strap 1002. The watch strap 1002 is connected to the watch body 1001. When a user wears the electronic device 1000, the watch strap 1002 can be used to secure the watch body 1001 to the user. Exemplarily, there may be two watch straps 1002, namely a first watch strap 1003 and a second watch strap 1004. The first watch strap 1003 and the second watch strap 1004 are respectively connected to both ends of the watch body 1001. In other embodiments, there may be only one watch strap 1002. Figure 2 yes Figure 1 An exploded view of one embodiment of the table body 1001 shown.

[0104] like Figure 1 and Figure 2 As shown, the watch body 1001 may include a button module 100, a screen 200, and a housing 300. The button module 100 may be mounted on the housing 300. The button module 100 may be used to detect user operations on the button module 100.

[0105] In some implementations, screen 200 can be used to display images, etc. Screen 200 can be a flat screen or a curved screen. The display screen of screen 200 can be an organic light-emitting diode (OLED) display screen, or an active-matrix organic light-emitting diode (AMOLED) display screen, or a liquid crystal display (LCD) display screen, etc.

[0106] In some embodiments, the housing 300 may include a mid-frame 310 and a back cover 320. The screen 200 and the back cover 320 are spaced apart, and the mid-frame 310 connects the screen 200 and the back cover 320. The screen 200, mid-frame 310, and back cover 320 together enclose the internal space 1005 of the electronic device 1000. The internal space 1005 of the electronic device 1000 can be used to house components of the electronic device 1000, such as a motherboard, battery, speaker, or microphone. A first watch band 1003 and a second watch band 1004 are respectively connected to both ends of the mid-frame 310.

[0107] In other embodiments, the mid-frame 310 and the back cover 320 may also be an integral structural component. When a user wears the electronic device 1000, the screen 200 is located on the side of the watch body 1001 facing away from the user's wrist skin, and the back cover 320 is located on the side of the watch body 1001 facing the user's wrist skin, and the back cover 320 can contact the user's wrist skin.

[0108] In other embodiments, when the electronic device 1000 does not have a screen 200, the housing 300 may also include a front cover, with the front cover and the rear cover 320 spaced apart from each other, and a middle frame 310 connected between the front cover and the rear cover 320. The front cover, the middle frame 310, and the rear cover 320 together enclose the internal space 1005 of the electronic device 1000.

[0109] like Figure 1 and Figure 2As shown, the button module 100 can be disposed on the side 1006 of the electronic device 1000. The side 1006 of the electronic device 1000 can surround the front 1007 of the electronic device 1000 (the side of the electronic device 1000 facing the user when in normal use). Specifically, for electronic devices 1000 with a display screen, such as smartwatches or smart bracelets, the front 1007 is the side where the screen 200 is located, and the side 1006 can surround the screen 200. For electronic devices 1000 without a screen 200, the front 1007 can be the main user interface of the electronic device 1000, and the side 1006 can surround the main user interface. The main user interface refers to the primary medium for interaction and information exchange between the electronic device 1000 and the user. For example, the main user interface can be the interface for displaying the time or a watch face on the electronic device 1000.

[0110] For example, when the housing 300 includes a mid-frame 310 and a back cover 320, the button module 100 can be mounted on the mid-frame 310 and exposed relative to the outer surface 3101 of the mid-frame 310. The outer surface 3101 of the mid-frame 310 refers to the surface of the mid-frame 310 that is away from the internal space 1005 of the electronic device 1000, i.e., the side 1006 of the electronic device 1000. It is understood that mounting the button module 100 on the side 1006 of the electronic device 1000 facilitates user touch or pressing. Compared with the solution of mounting the button module 100 on the screen 200, mounting the button module 100 on the side 1006 of the electronic device 1000 does not require occupying the display area of ​​the screen 200, which is beneficial to increasing the display area of ​​the electronic device 1000.

[0111] like Figure 1 As shown, the button module 100 can be located on the left or right side of the middle frame 310. When a user wears the electronic device 1000 with their arm hanging naturally, the cover 10 of the button module 100 can face the ground or face away from the ground. When the electronic device 1000 is a watch or bracelet, the strap 1002 can be connected to the top and bottom of the middle frame 310. When the user wears the electronic device 1000, the strap 1002 wraps around the user's wrist to achieve the wearing of the electronic device 1000. It is understood that compared to the top or bottom of the middle frame 310, the left or right side of the middle frame 310 has more space, which can be used to set up the button module 100.

[0112] In some embodiments, the first watch band 1003 refers to the watch band located above the display screen when the user is using the watch. The button module 100 is located on the side of the mid-frame 310 near the first watch band 1003. Alternatively, the distance between the button module 100 and the first watch band 1003 is the same as the distance between the button module 100 and the second watch band 1004, that is, the button module 100 is located at the 3 o'clock position. It is understood that when the user is using the watch, the position of the button module 100 is more convenient for the user to press, which is beneficial for user operation and improves the user experience.

[0113] In some implementations, when the electronic device 1000 does not have a screen 200, the button module 100 can be installed on the front 1007 of the electronic device 1000.

[0114] Understandably, the button module 100 is used to detect user operations on the button module 100. For example, users can also operate the electronic device 1000 by touching or pressing the button module 100, thus interacting with the electronic device 1000. As another example, the button module 100 can recognize user gestures, allowing users to operate the electronic device 1000 through different gestures, thereby interacting with the electronic device 1000.

[0115] In some embodiments, the button module 100 can be a button with travel distance. To activate the button function, the user needs to press the button module 100 to move it relative to the middle frame 310, creating a certain displacement. In other embodiments, the button module 100 can also be a touch button. To activate the button function, the button module 100 does not need to move relative to the middle frame 310; the user only needs to touch the button module 100 to activate the button function.

[0116] In some implementations, the button module 100 may be electrically connected to circuitry located within the electronic device 1000. For example, when the electronic device 1000 includes a motherboard and a sub-board, the button module 100 may be electrically connected to the motherboard and / or the sub-board to enable signal transmission. When the electronic device 1000 includes only a motherboard, the button module 100 may be electrically connected to the motherboard.

[0117] In some embodiments, the electronic device 1000 may further include a processor (not shown), which may be fixed to and electrically connected to the motherboard. The button module 100 may be electrically connected to the processor. Signals collected by the button module 100 may be transmitted to the processor via the flexible circuit board 92 and the motherboard.

[0118] In some embodiments, the electronic device 1000 may further include a motor (not shown). The motor may be mounted in the housing 300. Exemplarily, the motor may be disposed within the internal space 1005 of the electronic device 1000, and the button module 100 may be electrically connected to the motor. The motor may be used to vibrate based on data detected by the button module 100. For example, the motor may vibrate to indicate to the user whether the button operation is valid.

[0119] In some implementations, the motor may be mounted on the back cover 320. It is understood that when a user wears the electronic device 1000, the back cover 320 is in close contact with the user's wrist skin, and the motor vibration can be well perceived by the user through the back cover 320.

[0120] Understandable, Figure 1 and Figure 2 The illustration shows a button module 100 mounted on the housing 300 of an electronic device 1000. In other embodiments, the button module 100 may also be mounted on a separate housing, forming a separate button device. The button device may be part of the electronic device 1000 or a separate product. For example, Figure 1 and Figure 2 In this design, part of the casing 300 of the electronic device 1000 serves as the outer shell of the button device, used to mount the button module 100. This eliminates the need for a separate outer shell for the button device, thus reducing the size of the electronic device 1000. It should be noted that when the electronic device 1000 is a watch, bracelet, or other electronic device, the casing can also be referred to as a watch case.

[0121] Understandable, Figure 1 and Figure 2 The illustration shows that when the electronic device 1000 is a watch, bracelet, or other electronic device, the button module 100 is located on the watch body 1001. When the electronic device 1000 is a mobile phone, tablet, or other product without a watch strap, the button module 100 can be located on the main body of the electronic device 1000. For example, the button module 100 can be located on the bezel of a mobile phone. Exemplarily, the button module 100 can serve as an interactive button for the mobile phone. For example, the button module 100 can be used to control the power on and off of the mobile phone. When the button module 100 integrates a health monitoring function, the mobile phone can also perform health monitoring functions.

[0122] In some implementations, the button module 100 can be used to detect a user's health parameters. This allows the user to monitor their health status at any time. For example, the button module 100 can be used to measure physiological health parameters such as blood pressure, electrocardiogram (ECG), heart rate, blood oxygen saturation, blood lipids, and blood glucose. It is understood that integrating the health monitoring functions of the electronic device 1000 into the button module 100 allows the button module 100 to have more functions, while also saving space by eliminating the need for separate health monitoring devices. This facilitates the miniaturization of the electronic device 1000 while achieving multifunctionality. In other words, integrating different functions such as health monitoring and interactive functions into the button module 100 contributes to the miniaturization of the electronic device 1000 and meets the diverse needs of users.

[0123] In some implementations, the processor can be used to comprehensively analyze multiple health parameters of the user detected by the button module 100 to determine whether the user's current physical condition is healthy. If the analysis result indicates that the user is currently in a sub-healthy state, the processor can also provide adjustment suggestions for the user's lifestyle, eating habits, etc., based on the analysis results. In some implementations, the processor can also be used to analyze the user's current psychological state based on the parameters detected by the button module 100 to determine whether the user has mental health problems such as depression.

[0124] Figure 3 yes Figure 2 The diagram shows a structural schematic of one embodiment of the middle frame 310 shown.

[0125] like Figure 3 As shown, the housing 300 of the electronic device 1000 may be provided with a first through hole 301 and a second through hole 302. The first through hole 301 and the second through hole 302 are spaced apart. Both the first through hole 301 and the second through hole 302 connect the interior and exterior of the housing 300. For example, when the button module 100 is mounted on the middle frame 310, the first through hole 301 and the second through hole 302 may be located in the middle frame 310. It is understood that the first through hole 301 and the second through hole 302 can be used for signal transmission between the button module 100 and the internal devices located in the housing 300. It should be noted that the embodiments of this application are described using the first through hole 301 and the second through hole 302 as an example. It is understood that the number of through holes is not limited to this, and more or fewer through holes may be provided.

[0126] In some embodiments, the housing 300 of the electronic device 1000 may be provided with a mounting groove 303. The opening of the mounting groove 303 is located on the outer surface of the housing 300. The mounting groove 303 can be used to accommodate a button module. The outer surface of the housing 300 refers to the internal space 1005 of the housing 300 away from the electronic device 1000 (e.g., Figure 2The surface shown. For example, the openings of the first through hole 301 and the second through hole 302 are located at the bottom of the mounting groove 303, connecting the mounting groove 303 and the interior of the housing 300 of the electronic device 1000.

[0127] The button module 100 will be described below with reference to the accompanying drawings. Figure 4 yes Figure 2 The diagram shows a structural schematic of one embodiment of the button module 100 shown. Figure 5 yes Figure 4 The diagram shows an exploded view of one embodiment of the button module 100. For ease of description, the width direction of the button module 100 is defined as the X-axis. The length direction of the button module 100 is defined as the Y-axis. The thickness direction of the button module 100 is defined as the Z-axis. It is understood that the coordinate system can be flexibly set according to specific practical needs. It is understood that the coordinate system orientation here applies to all embodiments of this application.

[0128] like Figure 4 and Figure 5 As shown, the button module 100 may include a cover plate 10 (also called a button cap), a button lever 20, a pressure-sensitive sheet 30, and a first pressure-sensitive circuit 41. The cover plate 10 receives user input. The button lever 20 transmits the user's input to the cover plate 10. The pressure-sensitive sheet 30 deforms according to the force applied to the cover plate 10. The first pressure-sensitive circuit 41 detects the deformation of the pressure-sensitive sheet 30.

[0129] It should be noted that the deformation of the pressure sensor can include the following situations: the pressure sensor changes from no deformation to deformation; the pressure sensor changes from deformation to no deformation; the degree of deformation of the pressure sensor changes, such as the degree of deformation increases or decreases.

[0130] For example, the resistance value of the first pressure-sensitive circuit 41 can change according to the degree of deformation of the pressure-sensitive sheet 30. The electronic device 1000 may include a pressure-sensitive chip (not shown). For example, the pressure-sensitive chip can be mounted on and electrically connected to the motherboard. The pressure-sensitive chip can be electrically connected to the first pressure-sensitive circuit 41. The electronic device 1000 can provide a current with a fixed voltage value to the first pressure-sensitive circuit 41; when the resistance value of the first pressure-sensitive circuit 41 changes, the current in the first pressure-sensitive circuit 41 will also change accordingly. The pressure-sensitive chip can determine the force with which the user presses the cover plate 10 based on the magnitude of the current.

[0131] Figure 6A yes Figure 1 A partial cross-sectional view of one embodiment of the electronic device 1000 shown at AA. Figure 6B yes Figure 6A The diagram shows an assembly schematic of one embodiment of the cover plate 10, button lever 20, and pressure-sensitive sheet 30. Figure 7 yes Figure 1 The diagram shows a partial cross-sectional view of one embodiment of the electronic device 1000 at BB.

[0132] like Figures 6A to 7 As shown, the cover plate 10 can be mounted on the housing 300 of the electronic device 1000. The cover plate 10 may have an outer surface, which refers to the surface of the cover plate 10 that protrudes from the housing 300. Exemplarily, the cover plate 10 includes a top surface 11 and a bottom surface 12 disposed opposite to each other. The top surface 11 of the cover plate 10 faces away from the interior of the housing 300 of the electronic device 1000. The bottom surface 12 of the cover plate 10 faces the interior of the housing 300 of the electronic device 1000. The top surface 11 of the cover plate 10 protrudes from the outer surface of the housing 300 of the electronic device 1000. The top surface 11 of the cover plate 10 can be used to form the outer surface of the cover plate 10. It is understood that when a user needs to operate the button module 100, they can press or touch the top surface 11 of the cover plate 10.

[0133] The first end 21 of the button lever 20 is disposed on the bottom surface 12 of the cover plate 10. When the cover plate 10 is subjected to pressure and moves, the button lever 20 can move along with the cover plate 10. Exemplarily, the first end 21 of the button lever 20 can be fixedly connected to the bottom surface 12 of the cover plate 10. This improves the reliability of the connection between the button lever 20 and the cover plate 10, and the button lever 20 and the cover plate 10 move synchronously when the cover plate 10 is subjected to force. Specifically, the first end 21 of the button lever 20 can directly contact the bottom surface 12 of the cover plate 10; alternatively, the first end 21 of the button lever 20 can be spaced apart from the bottom surface 12 of the cover plate 10, and the first end 21 of the button lever 20 can be indirectly connected to the bottom surface of the cover plate 10 through other structural components. Exemplarily, the cover plate 10 and the button lever 20 are arranged sequentially from top to bottom along the Z-axis direction. In other embodiments, the button lever 20 can also be partially embedded within the cover plate 10.

[0134] In other embodiments, the first end 21 of the button lever 20 may not be fixedly connected to the bottom surface 12 of the cover plate 10. When the cover plate 10 is subjected to pressure and moves, the button lever 20 can still move with the cover plate 10. It is understood that those skilled in the art can adaptively adjust the connection relationship between the first end 21 of the button lever 20 and the bottom surface 12 of the cover plate 10, so that the button lever 20 can move with the cover plate 10, and is not limited to the first end 21 of the button lever 20 being fixedly connected to the bottom surface 12 of the cover plate 10.

[0135] The second end 22 of the button lever 20 is connected to the pressure-sensitive sheet 30. The button lever 20 can be used to transmit the force received by the cover plate 10 to the pressure-sensitive sheet 30. For example, when the button module 100 is installed in the electronic device 1000, the pressure-sensitive sheet 30 and the first pressure-sensitive circuit 41 can be located in the internal space 1005 of the housing 300 of the electronic device 1000 (e.g., ...). Figure 2 (As shown). The second end 22 of the button lever 20 can enter the interior of the housing 300 through the first through hole 301 to connect to the pressure-sensitive sheet 30. Exemplarily, the cover plate 10 and the button lever 20 are arranged sequentially from top to bottom along the Z-axis direction. It can be understood that the pressure-sensitive sheet 30 is located inside the housing 300. When the electronic device 1000 is dropped or subjected to a large external impact, the housing 300 can protect the first pressure-sensitive circuit 41 and the pressure-sensitive sheet 30, thus improving the reliability of the electronic device 1000. Furthermore, the button module 100 does not need to have an additional waterproof structure to waterproof the first pressure-sensitive circuit 41.

[0136] When the outer surface of the cover plate 10 is not under force, the pressure-sensitive sheet 30 is in the first state. When the outer surface of the cover plate 10 is subjected to pressure in a first direction, the first direction refers to the direction from the first end 21 of the button lever 20 to the second end 22 of the button lever 20, the button lever 20 moves along the first direction, causing the pressure-sensitive sheet 30 to switch from the first state to the second state. The first pressure-sensitive circuit 41 is used to detect the deformation of the pressure-sensitive sheet 30. Figure 6B The solid line indicates the position of the pressure-sensitive sheet 30 in the first state when the outer surface of the cover plate 10 is not under force, and the dashed line indicates the position of the pressure-sensitive sheet 30 in the second state. For example, when the pressure-sensitive sheet 30 is in the first state, the pressure-sensitive sheet 30 and the button lever 20 may not have any interaction force with each other in the first direction, for example, there may be no interaction force between the pressure-sensitive sheet 30 and the button lever 20 at all; or, the pressure-sensitive sheet 30 is subjected to a tensile force in the opposite direction to the first direction applied by the button lever 20.

[0137] Understandably, when the outer surface of the cover plate 10 is subjected to pressure in the first direction, the button lever 20 moves along the first direction, transmitting the pressure to the pressure-sensitive sheet 30. The force balance of the pressure-sensitive sheet 30 is broken, and the pressure-sensitive sheet 30 switches from the first state to the second state. Compared to the pressure-sensitive sheet 30 in the first state, the pressure-sensitive sheet 30 in the second state undergoes deformation. The different degrees of deformation of the pressure-sensitive sheet 30 between the two states reflect the magnitude of the pressure applied to the cover plate 10. The first pressure-sensitive circuit 41 can be used to detect the magnitude of the deformation of the pressure-sensitive sheet 30 when switching from the first state to the second state. Furthermore, the pressure-sensitive chip can analyze the data from the first pressure-sensitive circuit 41 to determine the magnitude of the pressure applied to the cover plate 10, and the electronic device 1000 can recognize the user's operation on the button module 100. In the solution of this application, when the cover plate 10 is subjected to a force greater than 0 or a force greater than a preset threshold, the force balance of the pressure-sensitive sheet 30 is broken, the pressure-sensitive sheet 30 switches from the first state to the second state, the pressure-sensitive sheet 30 can deform immediately, the pressure detection sensitivity is higher, the button module 100 responds more quickly to the user's operation recognition, the sensitivity is higher, and the user experience is better.

[0138] For example, the elastic element 60 can be used to provide a pre-tension force in the opposite direction to the first direction to the pressure-sensitive sheet 30. For example, the pre-tension force provided by the elastic element (for providing a force in the opposite direction to the first direction) can be equal to the rebound force provided by the deformation of the pressure-sensitive sheet 30 (for providing a force in the first direction), thereby achieving force balance. When the user presses the cover plate with a force greater than 0, the force balance is broken, and the elastic element 60 is compressed. Alternatively, for example, the pre-tension force provided by the elastic element 60 can be greater than the rebound force provided by the deformation of the pressure-sensitive sheet 30. When the user presses the cover plate 10 with a force greater than a preset threshold, the force balance of the pressure-sensitive sheet 30 is broken, and the pressure-sensitive sheet 30 deforms. It is understood that the above is only an example, and those skilled in the art can add or reduce the mechanism for providing a force in the first direction, and add or reduce the mechanism for providing a force in the opposite direction to the first direction, as needed. Furthermore, when the button module 100 is used on the electronic device 1000, and the electronic device 1000 is a watch or bracelet, the button module 100 is small in size, with a limited user contact area and limited user-applied force. Traditional button modules require a relatively large force to correctly recognize user operations, and when the user's force is small, traditional button modules cannot quickly and sensitively recognize user operations. The button module 100 of this application only requires a small amount of force to recognize user operations, and the button module 100 responds to user operations more quickly, has higher sensitivity, and provides a better user experience.

[0139] Furthermore, when the button module 100 integrates health monitoring functions, the force between the user's finger and the cover plate 10 should not be too great or too small to avoid affecting the health monitoring accuracy of the button module 100. For example, when the button module 100 collects the user's photoplethysmography (PPG) signal through the optical heart rate detection module 71, too much force between the user's finger and the cover plate 10 will cause significant deformation of the user's finger tissue, affecting the detection accuracy; when the force between the user's finger and the cover plate 10 is too small, the depth of light penetration into the tissue is limited, the signal acquisition is incomplete, and the detection accuracy is poor. When the pressure sensitivity of the button module 100 is good, the electronic device 1000 can set a feedback mechanism to remind the user to control the force between the button module 100 and the cover plate 10 within an appropriate range, so that the button module 100 can detect health parameters with high accuracy.

[0140] In some embodiments, when the outer surface of the cover plate 10 is not under stress, the pressure-sensitive sheet 30 is subjected to a force in the opposite direction to the first direction. That is, when the outer surface of the cover plate 10 is not under stress, the pressure-sensitive sheet 30 can be in a pre-stretched state. When the outer surface of the cover plate 10 is subjected to pressure, the button lever 20 moves along the first direction, the pressure-sensitive sheet 30 is released, and the pressure-sensitive sheet 30 deforms. The pressure-sensitive sheet 30 can have an initial shape, which refers to the shape of the pressure-sensitive sheet 30 in the unstressed state.

[0141] Understandably, during the assembly of the button module 100, the pressure-sensitive sheet 30 can be pre-stretched, allowing it to be subjected to force in the opposite direction to the first direction. Compared to the method where the button lever 20 moves along the first direction and the pressure-sensitive sheet 30 is squeezed to deform it, in this embodiment, the pressure-sensitive sheet 30 is subjected to a pre-stretching force in the opposite direction to the first direction. When the cover plate 10 is subjected to a force greater than 0 or greater than a preset threshold, the pressure-sensitive sheet 30 can be immediately released and changes towards its initial shape. As the pressure-sensitive sheet 30 changes from its pre-stretched state to its initial state, it deforms, resulting in higher pressure sensitivity. The button module 100 responds more quickly to user operations, exhibiting higher sensitivity and a better user experience. When the outer surface of the cover plate 10 is not under force, the pressure-sensitive sheet 30 and the button lever 20 remain stably connected due to the preload of the pressure-sensitive sheet 30. Simultaneously, the cover plate 10 and the button lever 20 can also be subjected to force along the first direction, which helps to fix the cover plate 10 and the button lever 20 relative to the housing 300, reducing the risk of the cover plate 10 and the button lever 20 falling off the housing 300. In some embodiments, the first end 21 of the button lever 20 is fixed to the bottom surface 12 of the cover plate 10. It is understood that the button lever 20 is fixedly connected to the cover plate 10, and the button lever 20 moves with the movement of the cover plate 10. The connection between the button lever 20 and the cover plate 10 has good reliability, and the button lever 20 can effectively transmit the user's pressing pressure on the cover plate 10 to the pressure-sensitive sheet 30.

[0142] In some embodiments, the pressure-sensitive sheet 30 includes a first surface 36 and a second surface 37 disposed opposite to each other (e.g., Figure 7 (As shown). The first surface 36 is the surface of the pressure-sensitive sheet 30 furthest from the cover plate 10, and the second surface 37 is the surface of the pressure-sensitive sheet 30 closest to the cover plate 10. When the outer surface of the cover plate 10 is not under force, the first surface 36 of the pressure-sensitive sheet 30 can abut against the button lever 20. There is no gap between the pressure-sensitive sheet 30 and the button lever 20.

[0143] Understandably, in traditional technical solutions, due to design and assembly tolerances, there is a gap between the button lever 20 and the pressure-sensitive sheet 30 in the first direction. When the cover plate 10 is subjected to force, the button lever 20 needs to move a certain distance in the first direction to abut against the pressure-sensitive sheet 30. In other words, when the user presses the cover plate 10 immediately, the pressure-sensitive sheet 30 cannot deform immediately. Instead, it can only deform after the button lever 20 has moved past the gap. Therefore, there is a lag in the deformation time of the pressure-sensitive sheet 30, and the pressure-sensitive circuit also has a lag in detecting the deformation time of the pressure-sensitive sheet 30, resulting in the button module 100 being unresponsive. In the technical solution of this application, the first surface 36 of the pressure-sensitive sheet 30 can abut against the button lever 20. When the cover plate 10 is subjected to force, the force balance of the pressure-sensitive sheet 30 is immediately broken, and the pressure-sensitive sheet 30 can deform according to the force of the cover plate 10 immediately. The button module 100 is more responsive in recognizing user operations.

[0144] In some embodiments, the pressure-sensitive sheet 30 can be snapped onto the button lever 20. Exemplarily, the button lever 20 is provided with a groove 23, the opening of which is located on the peripheral side surface 24 of the button lever 20. The groove 23 is used to snap onto the pressure-sensitive sheet 30. It is understood that, compared to the pressure-sensitive sheet 30 being fixedly connected to the button lever 20, in this embodiment, the pressure-sensitive sheet 30 snaps onto the button lever 20, requiring lower assembly precision and being easier to manufacture.

[0145] In some embodiments, when the pressure-sensitive sheet 30 is engaged with the button lever 20, there is a gap Q1 between the pressure-sensitive sheet 30 and the button lever 20 in a direction perpendicular to the first direction. It is understood that by setting the gap Q1, the risk of the pressure-sensitive sheet 30 rubbing against the button lever 20 during deformation can be reduced, which is beneficial to improving the quality and accuracy of pressure sensing.

[0146] In other embodiments, the pressure-sensitive sheet 30 can also be fixedly connected to the button lever 20. For example, the first surface 36 of the pressure-sensitive sheet 30 can be fixedly connected to the button lever 20 by means of adhesive bonding or welding.

[0147] In some embodiments, the first pressure-sensitive circuit 41 can be fixedly connected to the pressure-sensitive sheet 30 to realize the deformation detection of the pressure-sensitive sheet 30. It is understood that the fixed connection between the first pressure-sensitive circuit 41 and the pressure-sensitive sheet 30 has good reliability.

[0148] In some embodiments, the pressure-sensitive sheet 30 can be fixedly connected to the housing 300 of the electronic device 1000. The connection between the pressure-sensitive sheet 30 and the housing 300 has good reliability. For example, the first portion 31 of the pressure-sensitive sheet 30 can be fixedly connected to the housing 300 of the electronic device 1000 by means of screws, welding or gluing. Figure 6A The diagram illustrates that the first part 31 of the pressure-sensitive sheet 30 can be fixedly connected to the housing 300 of the electronic device 1000 by screw 1.

[0149] In some embodiments, the pressure-sensitive sheet 30 includes a first portion 31, a second portion 32, and a third portion 33. The first portion 31 of the pressure-sensitive sheet 30 is fixedly connected to the housing 300, the first pressure-sensitive circuit 41 is fixedly connected to the second portion 32 of the pressure-sensitive sheet 30, and the third portion 33 of the pressure-sensitive sheet 30 is connected to the second end 22 of the button lever 20. Exemplarily, the pressure-sensitive sheet 30 is strip-shaped, and along the length of the pressure-sensitive sheet 30, the first portion 31, the second portion 32, and the third portion 33 are connected sequentially. It is understood that the strip-shaped pressure-sensitive sheet 30, with the first pressure-sensitive circuit 41 fixedly connected to the second portion 32, allows for greater deformation of the second portion 32 when the pressure-sensitive sheet 30 deforms, which is beneficial for improving the detection accuracy of the first pressure-sensitive circuit 41.

[0150] It is understood that those skilled in the art can adjust the connection positions of screw 1, the first pressure-sensitive circuit 41, and the pressure-sensitive sheet 30 according to specific needs, and this application is not limited thereto. For example, the connection positions of screw 1 and pressure-sensitive sheet 30, and the connection positions of the first pressure-sensitive circuit 41 and pressure-sensitive sheet 30, can also be located on both sides of the connection position between button lever 20 and pressure-sensitive sheet 30. That is, the first part 31 and the second part 32 of pressure-sensitive sheet 30 can also be located on both sides of the third part 33 of pressure-sensitive sheet 30.

[0151] It is understandable that the first pressure-sensitive circuit 41 may not be fixedly connected to the pressure-sensitive sheet 30, but may detect the deformation of the pressure-sensitive sheet 30.

[0152] In some embodiments, the pressure-sensitive sheet 30 is sheet-shaped, and the space required for the deformation of the pressure-sensitive sheet in the first direction is small, which helps to save space and has little impact on the appearance of the product.

[0153] In some embodiments, the pressure-sensitive element 30 can be made of a metallic material, such as steel. This results in a stronger and longer-lasting pressure-sensitive element.

[0154] In some embodiments, the pressure-sensitive sheet 30 is fixedly connected to the middle frame 310 at a first position, and the pressure-sensitive sheet 30 is connected to the second end 22 of the button lever 20 at a second position. The first and second positions are arranged circumferentially along the middle frame 310. It is understood that compared to a scheme where the first and second positions are arranged along the thickness direction of the middle frame 310, this embodiment provides more installation space and reduces assembly difficulty due to the circumferential arrangement of the first and second positions. Furthermore, there is no interference from the back cover 320 and the screen 200 in the circumferential direction of the middle frame 310, making it easier to disassemble the pressure-sensitive sheet 30 when the button module 100 needs maintenance.

[0155] In some embodiments, the first pressure-sensitive circuit 41 can be fixedly connected to the side of the pressure-sensitive sheet 30 away from the cover plate 10. That is, the first pressure-sensitive circuit 41 can be fixedly connected to the first surface 36 of the pressure-sensitive sheet 30. In this way, the assembly of the first pressure-sensitive circuit 41 and the pressure-sensitive sheet 30 is easy.

[0156] In some embodiments, the button module 100 may further include an electrical connector 43. The electrical connector 43 may be electrically connected to the first pressure-sensitive circuit 41, and the electrical connector 43 may be used to transmit electrical signals from the first pressure-sensitive circuit 41. Figure 5 In the illustrated embodiment, the electrical connector 43 is exemplified as a flexible circuit board. In other embodiments, the electrical connector 43 can also be a wire, a rigid-flex board, or other structure capable of transmitting electrical signals. For example, one end of the electrical connector 43 can be fixedly connected to the pressure-sensitive sheet 30, and the other end can be fixedly connected to the motherboard of the electronic device 1000, electrically connected to the pressure-sensitive chip.

[0157] In some embodiments, the button module 100 further includes an elastic element 60, which abuts against the bottom surface 12 of the cover plate 10 and the housing 300. It is understood that when a user presses the cover plate 10, the cover plate 10 is subjected to force, the button lever 20 moves along the first direction, and the elastic element 60 is compressed. When the user finishes pressing the cover plate 10, the cover plate 10 is no longer subjected to force, and the elastic element 60 rebounds, applying a force in the opposite direction to the cover plate 10 to automatically return to its initial position, thereby achieving button rebound and improving pressure sensitivity. Furthermore, when the button module 100 is not in operation, the elastic element 60 and the pressure-sensitive sheet 30 respectively apply two opposing forces to the two ends of the button lever 20 along the first direction, which helps the button lever 20 maintain a stable state relative to the middle frame 310 and prevents the button module 100 from shaking.

[0158] For example, the elastic element 60 can be a structure made of elastic materials such as soft rubber, rubber pads, or foam. For example, Figure 5 and Figure 6A The diagram illustrates that the elastic element 60 can be a rubber pad.

[0159] In some embodiments, the housing 300 of the electronic device 1000 may be provided with a mounting groove 303, the opening of which may be located on the outer surface of the housing 300. The mounting groove 303 is used to accommodate the portion of the button module 100 located on the outside of the housing 300. For example, when the button module 100 is mounted on the middle frame 310, the mounting groove 303 is located on the middle frame 310, and the opening of the mounting groove 303 is located on the outer surface 3101 of the middle frame 310.

[0160] In some embodiments, the electronic device 1000 may further include a motor (not shown). The motor may be mounted in the housing 300. Exemplarily, the motor may be disposed within the internal space of the electronic device 1000, and the button module 100 may be electrically connected to the motor. The motor may be used to vibrate based on data detected by the first pressure-sensitive circuit 41 of the button module 100. Exemplarily, one end of the electrical connector 43 is electrically connected to the first pressure-sensitive circuit 41, and the other end is electrically connected to the motor.

[0161] For example, when the button module 100 is used as a touch button of the electronic device 1000, the motor can vibrate to indicate to the user whether the operation of the button is valid.

[0162] In some implementations, the first pressure-sensitive circuit 41 can be electrically connected to the motor of the electronic device 1000. When a user presses the cover plate 10, the first pressure-sensitive circuit 41 detects deformation of the pressure-sensitive sheet 30, and the motor can vibrate. The first pressure-sensitive circuit 41 and the pressure-sensitive sheet 30, in conjunction with the motor, can realize the button function of the button module 100. For example, the whole machine algorithm sets a corresponding threshold. When the user presses the cover plate 10 with a finger, the resistance of the first pressure-sensitive circuit 41 changes, generating an electrical signal, which is calculated by the pressure-sensitive chip inside the whole machine. The pressure-sensitive chip can be electrically connected to the motor to control the motor to generate vibration, achieving a function similar to a touch button.

[0163] In some embodiments, the button module 100 further includes a functional component 70. The functional component 70 is fixedly connected to the cover plate 10. The functional component 70 includes one or more of the following: an optical heart rate detection module 71, an electrocardiogram electrode 72, a camera, an ambient light sensor, a fingerprint detection module, an infrared emitter, a distance sensor, and a body fat detection module. Thus, the button module 100 can integrate more functions. It is understood that different functional components 70 can be disposed in different locations on the cover plate 10, such as the top surface 11, bottom surface 12, and sides of the cover plate 10.

[0164] In some implementations... Figure 6AThe diagram illustrates that functional component 70 includes an optical heart rate detection module 71 and electrocardiogram (ECG) electrodes 72. The ECG electrodes 72 may be partially disposed on the top surface 11 of the cover plate 10 to collect the user's electrical signals, partially across the side surface 1006 of the cover plate 10, and partially located on the bottom surface 12 of the cover plate 10 to transmit electrical signals. The optical heart rate detection module 71 may be disposed between the bottom surface 12 of the cover plate 10 and the housing 300. Exemplarily, the optical heart rate detection module 71 and the ECG electrodes 72 are arranged sequentially from top to bottom along the Z-axis. It is understood that the ECG electrodes 72 and the optical heart rate detection module 71 can be stacked along the thickness direction (Z-axis direction) of the button module 100. The button module 100 occupies a relatively small area of ​​the electronic device 1000, which helps save overall stacking space. More other functional devices can be disposed on the surface of the electronic device 1000, thereby meeting diverse user needs.

[0165] For example, the optical heart rate detection module 71 may include a light emitter 711 and a receiver 712 spaced apart. The optical heart rate detection module 71 can be used to acquire the user's photoplethysmography (PPG) signal. The light emitted by the light emitter 711 can shine onto the user's finger. The light can then be reflected or scattered by the blood vessels in the user's finger, received by the receiver 712, and converted into an electrical signal after photoelectric conversion.

[0166] For example, light reflected or scattered by blood vessels within a user's finger can reflect the user's blood flow information. Blood flow generally refers to the movement of blood through blood vessels in the body. It is a fundamental parameter of the circulatory system, reflecting the process of blood flowing through arteries, capillaries, and veins under the pumping action of the heart. Blood flow can be characterized by various parameters, including but not limited to velocity, flow rate, direction, stability (whether the blood flow in the circulatory system is stable), resistance (the resistance to blood flow from the vessel walls), pulsatility (the fluctuations in blood flow during heartbeats), and distribution (the distribution of blood flow within the body). By measuring and analyzing this blood flow information, the function of the heart and vascular system can be assessed, cardiovascular diseases can be diagnosed, and effective treatment plans can be developed.

[0167] Blood flow information is interconnected and influences other physiological characteristics such as heart rate, blood oxygenation, and respiration. In physiological characteristic testing, comprehensively considering this information helps to more accurately understand the body's physiological state and health status.

[0168] For example, the emitter 711 may include one light source or multiple light sources. When the emitter 711 includes multiple light sources, the wavelengths of the light emitted by these light sources may be different from each other, or in other words, the wavelengths of these light sources may be different from each other. Illustratively, the wavelengths of the multiple light sources may include near-infrared, red, blue, yellow, and green light bands, etc. Specifically, the blue light source can be selected from optical devices with a wavelength range of 450nm to 490nm, the yellow light source can be selected from optical devices with a wavelength range of 580nm to 595nm, the red light source can be selected from optical devices with a wavelength range of 640nm to 690nm, and the near-infrared light source can be selected from optical devices with a wavelength greater than 800nm. It is understood that light sources with different wavelengths can penetrate different depths of the user's tissue, thereby enabling the detection of blood flow information at different depths under the user's skin. The types of light sources included in the emitter 711 can be selectively set according to requirements. For example, the emitter 711 may include red, green, and infrared light sources.

[0169] It is understood that when the functional component 70 is disposed between the cover plate 10 and the housing 300, and the functional component 70 needs to emit light or receive external light, the cover plate 10 may include a light-transmitting area made of a light-transmitting material to allow light to pass through. For example, when the functional component 70 includes an optical heart rate detection module 71, the cover plate 10 will not affect the light emitted by the emitter 711 from passing through the light-transmitting area to illuminate the user's skin or tissue, nor will it affect the reflected light from passing through the light-transmitting area to be received by the receiver 712. The light-transmitting material can be glass, resin, etc. For example, the cover plate 10 can be a transparent lens. It is understood that the cover plate 10 can be made entirely of a light-transmitting material, or partially of a light-transmitting material; this application does not impose any limitations.

[0170] In some embodiments, the button module 100 also includes a Fresnel membrane 73. The Fresnel membrane 73 can be used to shield the emitter 711 and receiver 712, as well as other nearby structures, preventing the user from seeing these other structures from the outside of the cover plate 10, thereby enhancing the product's appearance. The Fresnel membrane 73 can also allow light emitted by the emitter 711 to pass through, and can concentrate the light or reduce scattering, thereby enhancing the brightness of the emitter 711. Exemplarily, when the button module 100 includes an emitter 711 and a receiver 712, there are two Fresnel membranes 73, spaced apart. Along the thickness direction of the cover plate 10, one Fresnel membrane 73 is positioned opposite the emitter 711, and the other Fresnel membrane 73 is positioned opposite the receiver 712. This prevents light emitted by the emitter 711 from propagating along the Fresnel membrane 73 to the receiver 712, thus preventing the receiver 712 from receiving external light.

[0171] In some embodiments, the button module 100 further includes a carrier plate 81, which, together with the cover plate 10, encloses a receiving space 811. An optical heart rate detection module 71 is located within the receiving space 811. Exemplarily, the emitter 711 and receiver 712 can be fixed to the carrier plate 81. The carrier plate 81 may have through holes to allow the button lever 20 to pass through. Exemplarily, along the Z-axis direction, the cover plate 10, the optical heart rate detection module 71, the carrier plate 81, and the pressure-sensitive sheet 30 are arranged sequentially from top to bottom. It is understood that the cover plate 10 can be used to provide waterproof and dustproof protection for the optical heart rate detection module 71.

[0172] In some embodiments, when the button module 100 includes a support plate 81, the elastic element 60 can abut against the housing 300 and the support plate 81 along a first direction. The support plate 81 is fixedly connected to the cover plate 10, and the elastic element 60 indirectly abuts against the cover plate 10 and the housing 300 through the support plate 81. Exemplarily, along the Z-axis direction, from top to bottom, the cover plate 10, the optical heart rate detection module 71, the support plate 81, the elastic element 60, and the pressure-sensitive sheet 30 are arranged sequentially.

[0173] In some embodiments, the ECG electrodes 72 are made of conductive material. When the button module 100 is mounted on the middle frame 310, the top surface 11 of the cover plate 10 can be exposed outside the middle frame 310 (e.g., Figure 6A As shown, a portion of the ECG electrode 72 is located on the top surface 11 of the cover plate 10. A finger can be placed on the top surface 11 of the cover plate 10 and electrically connected to the ECG electrode 72, thereby enabling the acquisition of the user's electrical signals. It is understood that... Figure 6A The illustration only shows one embodiment where a portion of the ECG electrode 72 is located on the top surface 11 of the cover plate 10. The arrangement of the ECG electrode 72 on the top surface 11 of the cover plate 10 is not limited to this embodiment. Figure 6A As shown in the image.

[0174] For example, the ECG electrode 72 can be made of an opaque conductive material or a transparent conductive material. When the ECG electrode 72 is made of a light-transmitting conductive material, the ECG electrode 72 has less impact on the light emitted by the emitter 711 and the light received by the receiver 712. The ECG electrode 72 can be set to be larger, which is beneficial to increase the contact area for the user and thus improve the detection accuracy.

[0175] For example, the ECG electrode 72 can be formed on the cover plate 10 by a coating process. In this way, the cover plate 10 of the button module 100 has a better integrated effect, and the electronic device 1000 has a more aesthetically pleasing appearance.

[0176] For example, when a user wears the electronic device 1000, the top surface 11 of the cover plate 10 of the button module 100 is exposed. When the user needs to measure an electrocardiogram (ECG), they can touch the top surface 11 of the cover plate 10 with their finger, which is electrically connected to the ECG electrode 72, allowing the cover plate 10 to collect the user's electrical signal. After processing, the electrical signal can be used to obtain the user's electrocardiogram (ECG) waveform. The ECG waveform can reflect the user's cardiac function status.

[0177] In some embodiments, when a user wears the electronic device 1000 to perform ECG measurements, a reference electrode may be provided on the back of the electronic device 1000. The reference electrode is used to contact the user's wrist skin. Both the ECG electrode 72 and the reference electrode can be electrically connected to the user. The ECG electrode 72 and the reference electrode contact and connect to different locations of the user's skin, forming a lead. The electronic device 1000 obtains the user's ECG signal based on the electrical signals collected by the ECG electrode 72 and the reference electrode. For example, when a user wears the electronic device 1000 to perform ECG measurements, the user wears the electronic device 1000 on their left hand, the reference electrode is used to contact the skin of the user's left hand, and the fingers of the user's right hand contact the ECG electrode 72. In the above embodiments, the electrode installed on the button module 100 is referred to as the ECG electrode, and the electrode installed in other locations is referred to as the reference electrode. In the embodiments of this application, the names are not limited to the above descriptions and may also be referred to as the first electrode and the second electrode. In some embodiments, the button module 100 may also include a conductive element 91. The conductive element 91 is fixed to the bottom surface 12 of the cover plate 10 and is electrically connected to the ECG electrode 72. In this way, the user's electrical signal collected by the ECG electrode 72 can be transmitted through the conductive element 91. Exemplarily, the conductive element 91 can be conductive silicone. The conductive element 91 abuts between the cover plate 10 and the carrier plate 81. The contact between the conductive element 91 and the ECG electrode 72 is stable, and the electrical connection stability is good. In other embodiments, the conductive element 91 can also be a metal trace or other electrical connection structure.

[0178] In some implementations, when the button module 100 collects the user's health parameters, the motor may vibrate to indicate that the detection is complete when the PPG and ECG signals are collected.

[0179] In some implementations, when a user performs ECG and PPG signal measurements, the user places their finger on the cover plate 10. The pressure-sensitive pad 30 deforms to varying degrees depending on the force exerted between the user's finger and the cover plate 10. The first pressure-sensitive circuit 41 can detect the deformation of the pressure-sensitive pad 30. Thus, the degree of deformation of the pressure-sensitive pad 30 detected by the first pressure-sensitive circuit 41 can indicate the force with which the user's finger presses the cover plate 10. It is understood that the optical heart rate detection module 71, ECG electrodes 72, and pressure-sensitive functional components (cover plate 10, button lever 20, and pressure-sensitive pad 30, etc.) combined with a motor form a feedback device, enabling the reuse of health monitoring and physical buttons, which is beneficial for improving the appearance and integration of the electronic device 1000. When the electronic device 1000 is a watch or bracelet, integrating the health monitoring function into the button module 100 saves space for additional health monitoring devices, which is beneficial for the miniaturization of the watch or bracelet.

[0180] In some implementations, when the user's finger is placed incorrectly on the cover plate 10, or when the finger is placed off-center from the ideal detection position, the pressure-sensitive pad 30 experiences less force. The pressure-sensitive chip can determine whether the user's finger is properly positioned based on the force applied to the pressure-sensitive pad 30. When the user's finger is not properly positioned, the motor can vibrate to prompt the user to reposition their finger. It is understood that motor vibration feedback can ensure signal acquisition quality and improve measurement accuracy. It is also understood that voice prompts can be used to prompt the user to reposition their finger; this application embodiment does not limit the method of prompting. In other words, the degree of deformation of the pressure-sensitive pad 30 detected by the pressure-sensitive circuit can detect whether the user's finger is properly positioned, evaluate the signal quality acquired by sensors such as the optical heart rate detection module 71 and ECG electrodes 72, and improve acquisition quality and measurement accuracy through real-time feedback.

[0181] For example, during the operation of the first pressure-sensitive circuit 41 and the pressure-sensitive pad 30, a first threshold value can be set. The first threshold value is the minimum force exerted on the pressure-sensitive pad 30 when the user's finger is placed in the correct position. When the pressure-sensitive chip monitors that the real-time force detected by the pressure-sensitive pad 30 is greater than or equal to the first threshold value, the pressure-sensitive chip can control the button module 100 to simultaneously collect the user's ECG and PPG signals, calculate the time difference between the two, i.e., the pulse transit time (PTT), and then convert it through a series of formulas to finally obtain the user's blood pressure data.

[0182] It should be noted that blood pressure data is used as an example here. It is understood that other physiological data of the user, such as heart rate and electrocardiogram, can also be obtained through formula conversion.

[0183] In some implementations, when the force between the user's finger and the cover plate 10 is small, the depth to which the light emitted by the light emitter 711 penetrates the tissue under the user's skin is limited, and the user's blood vessels are at a certain depth from the user's skin surface. Generally, the greater the force applied by the user to the cover plate 10, the better the fit between the user's finger and the keycap 10, and the deeper the light emitted by the light emitter 711 penetrates the user's skin. Therefore, when the key module 100 is used to measure PPG signals, a second threshold value can be set. When the force between the user's finger and the cover plate 10 is greater than or equal to the second threshold value, the depth to which the light emitted by the light emitter 711 penetrates the user's skin is greater, allowing most of the light to illuminate the location of the blood vessels under the user's skin. When the pressure-sensitive chip monitors that the real-time force detected by the pressure-sensitive pad 30 is greater than or equal to the second threshold value, the pressure-sensitive chip then controls the key module 100 to start acquiring the user's PPG signal, thus acquiring a more accurate PPG signal.

[0184] In addition, when the real-time force detected by the pressure-sensitive pad 30 is greater than or equal to the second threshold value, the pressure-sensitive chip controls the button module 100 to start collecting the user's ECG signal, so that the force between the user and the cover plate 10 is within a large range, the electrical connection between the cover plate 10 and the user is more reliable, and the collected ECG signal is more accurate.

[0185] For example, the first threshold value and the second threshold value may be equal or unequal.

[0186] In some embodiments, the cover plate 10 can also be used to sense or detect a user's touch or pressing action to enable the button module 100 to perform button functions. For example, when a user touches or presses the ECG electrode 72, the ECG electrode 72 can collect the user's electrical signal. Based on whether the ECG electrode 72 collects the user's electrical signal, it can be determined whether the user has touched or pressed the cover plate 10. In other words, when the button module is detected to be pressed, it can be determined whether it is a touch or pressing action or an accidental touch by checking whether the ECG electrode 72 collects the user's electrical signal or by checking whether the optical heart rate detection module 71 collects the user's PPG signal.

[0187] In other embodiments, the button module 100 can also be used by other modules to sense touch or press actions performed by the user on the cover 10. For example, the optical heart rate detection module 71 can also be used to sense touch actions performed by the user on the housing.

[0188] Figure 8 yes Figure 4 The diagram shows a partial structural view of the button module 100 from another angle. Figure 9 yes Figure 5 The diagram shows a partial structural schematic of the structure shown.

[0189] like Figures 6A to 9 As shown, the button module 100 may also include a side plate 82. The side plate 82 is fixedly connected between the cover plate 10 and the support plate 81. The side plate 82 and the cover plate 10 can constitute the button cap / keycap of the button module 100. When the button module 100 does not include the side plate, the cover plate 10 can serve as the button cap / keycap of the button module 100 alone. It is understood that the side plate 82 can support the cover plate 10, so that there is a height difference between the cover plate 10 and the light emitter 711 and the receiver 712. During the process of the light emitter 711 emitting light, the height of the housing 300 is relatively high, which can provide a certain travel for the light emitter 711 to emit light, so that the light can illuminate a larger area of ​​the user's skin surface. Exemplarily, the cover plate 10 is mounted on the side plate 82, and the side plate 82 is mounted on the housing 300. The cover plate 10 can be mounted on the housing 300 through the side plate 82.

[0190] For example, the cover plate 10 and the side plate 82 can be formed into an integral structural component through an integral molding process. It is understood that the integral structure obtained by the two components through an integral molding process means that during the formation of one of the two components, that component is connected to the other component, without the need for further processing (such as bonding, welding, snap-fit ​​connection, screw connection) to connect the two components together.

[0191] In some embodiments, the side panel 82 may include a metal portion 821 and a plastic portion 822 (the metal portion 821 and the plastic portion 822 are schematically distinguished by dashed lines in the figure). The plastic portion 822 is fixedly connected to the metal portion 821. It is understood that, compared to a solution where the side panel 82 is entirely made of plastic, in this embodiment, providing a metal portion 821 can effectively improve the strength of the side panel 82. Exemplarily, the metal portion 821 and the plastic portion 822 can be integrally molded using a metal insert molding process.

[0192] In some embodiments, the cover plate 10 and the side plate 82 can be fixedly connected by dispensing / potting adhesive. For example, a protrusion 84 can be provided on the inner side of the side plate 82, and the bottom surface 12 of the cover plate 10 can be fixedly connected to the protrusion 84. This results in a larger connection area between the cover plate 10 and the side plate 82, better connection stability, and facilitates the integrated appearance of the button module 100. For example, the protrusion 84 can be made of plastic. The protrusion 84 and the plastic part 822 can be integrally molded using an injection molding process.

[0193] In some embodiments, waterproofing can be achieved between the cover plate 10 and the side plate 82 through dispensing / potting. That is, cured adhesive is filled between the cover plate 10 and the side plate 82 to seal the gap between them, preventing external moisture from corroding the components within the housing space 811, such as the optical heart rate detection module 71, thus achieving a high level of waterproofing. In some embodiments, when the button module 100 is used as a standalone product, it can achieve a 5ATM waterproof rating, meeting the user's needs for use in high-humidity environments.

[0194] For example, the light transmittance of the adhesive can be greater than 75%, or greater than 80%, or greater than 85%, or greater than 90%, or greater than 95%. In this way, the adhesive does not affect the passage of light.

[0195] In some embodiments, the button module 100 may further include a fixing part 83 (the fixing part 83 and the plastic part 822 are schematically distinguished by dashed lines in the figure). The fixing part 83 is located in the receiving space 811 and is fixedly connected to the inner side of the side plate 82. The fixing part 83 may be disposed on the bottom surface 12 of the cover plate 10. The first end 21 of the button lever 20 may be fixedly connected to the fixing part 83, thereby realizing that the first end 21 of the button lever 20 is fixedly connected to the bottom surface 12 of the cover plate 10. In other embodiments, the first end 21 of the button lever 20 may be directly fixedly connected to the bottom surface 12 of the cover plate 10.

[0196] In some embodiments, the side plate 82, the fixing part 83, and the protrusion 84 can constitute the support of the button module 100. The support can be made entirely of metal materials, or it can include two or more materials simultaneously. For example, the support can include both metal and plastic. This application does not limit the material or shape of the support of the button module 100, and those skilled in the art can make settings according to their needs.

[0197] In some embodiments, the button lever 20 can be made of metal. This increases the strength of the button lever 20, allowing it to withstand repeated presses and improving the lifespan of the button module 100. For example, the fixing part 83 can be made of plastic. The button lever 20 can be made of metal. The fixing part 83, the metal part 821 and plastic part 822 of the side plate 82, and the metal button lever 20 can be integrally molded using a metal insert molding process.

[0198] Figure 10 yes Figure 4 The diagram shows a partial structural view of the button module 100 from another angle. Figure 11 yes Figure 1 The diagram shows a partial cross-sectional view of one embodiment of the electronic device 1000 at CC.

[0199] like Figure 10 and Figure 11 As shown, the button module 100 may also include a flexible circuit board 92. The flexible circuit board 92 is used to electrically connect to the functional component 70, transmitting electrical signals from the functional component 70 to the interior of the housing 300. Exemplarily, the flexible circuit board 92 is electrically connected to the electrocardiogram (ECG) electrode 72 and the optical heart rate detection module 71. When the button module 100 is mounted on the electronic device 1000, the housing 300 may have a second through-hole 302. The flexible circuit board 92 of the button module 100 can be electrically connected to the mainboard disposed inside the housing 300 through the second through-hole 302. Exemplarily, the ECG electrode 72 can be electrically connected to the flexible circuit board 92 through a conductive element 91.

[0200] Understandably, the electrical signals of the pressure-sensitive circuit of the button module 100 and the electrical signals of the functional component 70 are transmitted through the electrical connector 43 and the flexible circuit board 92 respectively, with separate outgoing lines. The positions of the electrical connector 43 and the flexible circuit board 92 are decoupled, and redundancy is reserved to reduce the impact on pressure-sensitive performance.

[0201] In other embodiments, the electrical signals of the pressure-sensitive circuit of the button module 100 and the electrical signals of the functional component 70 can also be transmitted through a flexible circuit board. Those skilled in the art can make the settings as needed, and this application does not impose any restrictions.

[0202] In some embodiments, the flexible circuit board 92 includes a first portion 921 and a second portion 922. The first portion 921 of the flexible circuit board 92 is located in the receiving space 811 and is electrically connected to the optical heart rate detection module 71 and the electrocardiogram electrode 72. The first end 9221 of the second portion 922 of the flexible circuit board 92 is connected to the first portion 921, and the second end 9222 of the second portion 922 extends out of the receiving space 811, passes through the second through hole 302 provided on the housing 300, and enters the interior of the housing 300 for electrical connection to the main board. In this way, the signals from the optical heart rate detection module 71 and the electrocardiogram electrode 72 can be transmitted to the main board sequentially through the first portion 921 and the second portion 922 of the flexible circuit board 92.

[0203] In some embodiments, the second portion 922 of the flexible circuit board 92 includes a horizontal portion 9223 and an extension portion 9224. The horizontal portion 9223 is connected between the extension portion 9224 and the first portion 921 of the flexible circuit board 92, and is electrically connected between the extension portion 9224 and the first portion 921 of the flexible circuit board 92. The horizontal portion 9223 is fixed to the side of the carrier plate 81 facing away from the cover plate 10, and the horizontal portion 9223 and the carrier plate 81 are substantially parallel. Considering assembly accuracy and manufacturing process, the included angle between the horizontal portion 9223 and the carrier plate 81 is less than 10°. Exemplarily, the horizontal portion 9223 can be fixed to the carrier plate 81 by an adhesive. Understandably, compared to a solution where the second portion 922 of the flexible circuit board 92 is not fixed, in this embodiment, after the second portion 922 of the flexible circuit board 92 extends from the receiving space 811, it is first bent horizontally and fixed. Then, the extension 9224 is electrically connected to the main board through the second through hole 302 of the housing 300. This reduces the redundancy of the flexible circuit board 92's movement between the carrier plate 81 and the housing 300. When the button module 100 shakes, the swaying of the flexible circuit board 92 between the carrier plate 81 and the housing 300 can be reduced, thus reducing the occurrence of the flexible circuit board 92 hitting the housing 300. For example, by controlling the connection position of the horizontal portion 9223 and the extension 9224 with the position of the second through hole 302, the extension 9224 can pass through the second through hole 302 as far as possible along its extension direction, reducing the collision between the flexible circuit board 92 and surrounding devices.

[0204] In some embodiments, the flexible circuit board 92 can be electrically connected to the motherboard via a board-to-board connector (BTB) or a zero-insertion-force connector (ZIF). This reduces maintenance difficulty and facilitates subsequent repairs. In other embodiments, the flexible circuit board 92 can also be electrically connected to the motherboard via hotbar soldering.

[0205] For example, the acquisition path for the user's electrocardiogram (ECG) signal may include: ECG electrodes 72 on the top surface 11 of the cover plate 10 (e.g., Figure 6A After the user's electrical signal is collected (as shown), the electrical signal can be transmitted to the main board of the electronic device 1000 through the conductive component 91 and the flexible circuit board 92 in sequence.

[0206] For example, the electronic device 1000 may include an electrocardiography (ECG) chip (not shown). The ECG chip may be located in the internal space 1005 of the housing 300 (e.g., Figure 2(As shown). For example, the ECG chip can be fixed to a motherboard (not shown) and electrically connected to the motherboard. The ECG chip can be electrically connected to the ECG electrode 72 via the motherboard, flexible circuit board 92, and conductive element 91. The ECG chip can be used to process the electrical signals obtained from the ECG electrode 72 to obtain the user's electrocardiogram waveform.

[0207] In other embodiments, the electronic device 1000 may also include an ECG chip for processing other types of ECG signals besides ECG. The ECG chip can be used to process the electrical signals acquired by the ECG electrodes 72 to obtain the user's ECG information.

[0208] For example, the acquisition path of a user's heart rate signal may include: light emitted by the emitter 711 can be projected onto the user's finger through the cover plate 10. The light can then be reflected or scattered by blood vessels in the user's finger, returning to the receiving space 811 through the cover plate 10, and being received by the receiver 712. After the receiver 712 of the optical heart rate detection module 71 acquires the optical signal reflected by the user's tissue, it converts the optical signal into an electrical signal and transmits it to the main board of the electronic device 1000 through the flexible circuit board 92.

[0209] For example, the electronic device 1000 may include a PPG chip (not shown), which may be fixed to and electrically connected to the motherboard. The PPG chip may be electrically connected to the receiver 712 via the motherboard and the flexible circuit board 92. The PPG chip may be used to process the electrical signals acquired by the receiver 712 to obtain the user's photoplethysmography (PPG) signal.

[0210] In other embodiments, the electronic device 1000 may also include a heart rate chip for processing heart rate signals processed by methods other than PPG. The heart rate chip may be used to process the electrical signals received by the receiver 712 to obtain the user's heart rate information.

[0211] In some implementations, the PPG signal can also be combined with the aforementioned ECG waveform to obtain a more accurate user blood pressure and other biometric information related to the human cardiovascular system through algorithms. For example, the button module 100 can simultaneously acquire the user's ECG waveform and PPG signal, calculate the time difference PPT between the two using an algorithm, and then convert the data using a formula to obtain the user's blood pressure data.

[0212] In some implementations, miniaturized choke inductors (not shown) can be arranged on the flexible circuit board 92 to prevent problems caused by mutual interference between radio frequency signals and physiological signals collected on the flexible circuit board 92, such as interference of radio frequency signals causing pressure-sensitive accidental touches.

[0213] It is understood that the ECG electrode 72 of the button module 100 of this application can be used to collect the user's electrical signals and obtain ECG signals, and the optical heart rate detection module 71 can be used to obtain the user's PPG signals. After processing by corresponding algorithms, the ECG and PPG signals can obtain multiple physiological indicators such as the user's electrocardiogram, heart rate, and blood pressure. In traditional technical solutions, the PPG acquisition device and the ECG acquisition device are set separately, and the user needs to touch the PPG acquisition device and the ECG acquisition device simultaneously with two fingers to complete the acquisition of ECG and PPG signals. When the button module 100 of this application collects the user's ECG and PPG signals, the user only needs to place one finger on the top surface 11 of the cover plate 10, making the operation simpler. The button module 100 integrates button functions and health monitoring functions. Compared with the solution of setting the button and health monitoring function modules separately, the button module 100 of this application achieves multiple functions while being smaller in size. When the button module 100 is installed on the electronic device 1000, it is beneficial to the miniaturization of the electronic device 1000. Furthermore, this application uses ECG waveforms combined with PPG signals to measure user blood pressure, heart rate, and other signals. On one hand, compared to traditional oscilloscope methods and dual-channel PPG signal combination methods, the ECG waveform combined with PPG signal measurement method of this application is more accurate in measuring user blood pressure, heart rate, and other signals. On the other hand, compared to traditional blood pressure monitors and other products, it does not require the inclusion of air pumps, air bladders, or other mechanisms, resulting in a smaller size. When measuring blood pressure, the button module 100 of this application only requires the user to place their finger on the cover plate 10 to complete the blood pressure measurement with a single button press, simplifying the measurement process and making it more convenient for users.

[0214] Furthermore, when the button module 100 has health monitoring functions such as blood pressure, heart rate, and ECG, the combination of pressure-sensitive detection can make the health monitoring of the button module 100 more accurate and flexible. The button module 100 realizes virtual button function through pressure-sensitive circuit, which can be seamlessly adapted to various terminal devices with buttons, saving overall space and having strong adaptability.

[0215] In other embodiments, the functional component 70 may also include more devices, thereby integrating more functions onto the button module 100, which is beneficial for the multi-functionality of the button module 100. For example, the button module 100 may also have a temperature sensor on the top surface 11 of the cover plate 10, which can detect the user's body temperature. In addition, when the user touches the cover plate 10, the temperature sensor can identify the temperature change at the top surface 11 of the cover plate 10, which can be used to determine whether the user has touched the top surface 11 of the cover plate 10.

[0216] like Figure 6A and Figure 7As shown, the button module 100 also includes a rubber ring 50. The rubber ring 50 is disposed between the button module 100 and the housing 300 to seal the gap between the button module 100 and the housing 300. This prevents moisture or dust from entering the internal space 1005 of the electronic device 1000 through the gap between the button module 100 and the housing 300, thus preventing interference with the operation of components (e.g., the motherboard) in the internal space 1005 of the electronic device 1000. Exemplarily, the rubber ring 50 can be an O-ring or a shaped ring.

[0217] Understandably, in traditional technical solutions, waterproofing is typically achieved by sealing the gap between the flexible circuit board 92 and the housing 300 with adhesive, and an O-ring is fitted onto the button lever 20 to seal the gap between the button lever 20 and the housing 300. However, the adhesive application process suffers from poor consistency and unreliable waterproofing. Furthermore, when adhesive overflows into areas where waterproofing is not required, it can easily reduce the pressure sensitivity of the button module 100. Additionally, the flexible circuit board 92, fixed to the housing 300, experiences repeated stretching during button module 100 operation, affecting its lifespan. The O-ring on the button lever 20 creates friction between the O-ring, the button lever 20, and the housing 300 when the user presses the button module 100, affecting pressure sensitivity. This embodiment uses a rubber ring 50 for waterproofing and dustproofing. The rubber ring 50 exhibits better consistency and more stable waterproofing; its assembly process is also simpler and less complex. Furthermore, the flexible circuit board 92 and the housing 300 do not require adhesive bonding for fixation, making it easy to disassemble and reducing maintenance costs when the button module 100 needs repair. No O-ring is needed between the button rod 20 and the housing 300 for waterproofing, and there is no friction between them, resulting in high pressure sensitivity.

[0218] In some embodiments, when the button module 100 is installed in the mounting groove 303, the rubber ring 50 can be fixedly connected to the side plate 82 and abut against the groove wall of the mounting groove 303 to seal the gap between the housing 300 and the side plate 82. In this way, the rubber ring 50 can not only prevent moisture or dust from entering the internal space 1005 of the electronic device 1000 through the gap between the side plate 82 and the housing 300 of the button module 100, but also prevent moisture or dust from entering the receiving space 811 between the carrier plate 81 and the cover plate 10, thus providing waterproofing and dustproofing for the optical heart rate detection module 71.

[0219] In some embodiments, the rubber ring 50 can be fabricated using liquid silicone via liquid injection molding (LIM). The LIM process involves injecting liquid silicone into a mold cavity, where it cures at a specific mold temperature. This allows the rubber ring 50 to be directly and securely attached to the side plate 82 without the need for a separate bonding process. Furthermore, since the rubber ring 50 is molded, there is no need to pre-cut grooves in the side plate 82, allowing for a smaller thickness of the side plate 82, which is beneficial for miniaturizing the button module 100.

[0220] In some embodiments, the rubber ring 50 includes a sidewall 51 and a bottom wall 52. The sidewall 51 of the rubber ring 50 is annular, and the bottom wall 52 of the rubber ring 50 is connected to the inner side of the sidewall 51. The side plate 82 is annular, and the sidewall 51 of the rubber ring 50 is fitted onto the outer side of the side plate 82 and abuts against the groove wall of the mounting groove 303. The bottom surface 823 of the side plate 82 faces away from the cover plate 10. The bottom wall 52 of the rubber ring 50 is fixedly connected to the bottom surface 823 of the side plate 82. It can be understood that, compared to the scheme where the rubber ring 50 is only connected to the outer side of the sidewall, in this embodiment, the cross-section of the rubber ring 50 can be approximately L-shaped, the connection area between the rubber ring 50 and the sidewall is larger, and the connection strength is better. When the button module 100 is installed on the housing 300, the rubber ring 50 is not easy to fall off the side plate 82 due to friction with the housing 300. The 50 rubber ring has better waterproof sealing reliability.

[0221] It is understood that the bottom wall 52 of the rubber ring 50 can be annular or block-shaped. When the bottom wall 52 of the rubber ring 50 is plate-shaped, the bottom wall 52 of the rubber ring 50 may include a block structure or multiple spaced-apart block structures. This application does not limit the shape of the bottom wall.

[0222] In other embodiments, the rubber ring 50 may also be fitted onto the button rod 20 to seal the gap between the button rod 20 and the housing 300.

[0223] In some embodiments, the assembly process of the button module 100 and the housing 300 of the electronic device 1000 may include: first, inserting the flexible circuit board 92 through the second through hole 302 of the housing 300 into the whole device; second, inserting the button lever 20 through the first through hole 301 of the housing 300 into the whole device; third, fixing the button module 100 to the housing 300 via the button lever 20 and the pressure-sensitive sheet 30; and finally, tightening the screw 1 to fix the pressure-sensitive sheet 30, thus completing the assembly of the button module 100 onto the whole device. A rubber ring 50 abuts between the button module 100 and the housing 300, sealing the gap between them, giving the electronic device 1000 a high level of waterproofing. For example, the electronic device 1000 may have a 5ATM waterproof rating, meeting the user's needs for use in environments with high humidity.

[0224] In some implementations, the same technical content as in the previous implementations will not be repeated. Figure 12 yes Figure 1 A partial structural schematic diagram of another embodiment of the body of the electronic device 1000 shown. Figure 13 yes Figure 12 The diagram shows a partial cross-sectional view of one embodiment of the structure at DD. Figure 14 yes Figure 12 The diagram shows a partial cross-sectional view of one embodiment of the structure at EE.

[0225] like Figures 12 to 14 As shown, the side panel 82 of the button module 100 can also be entirely composed of metal parts 821. A plastic part 822 is fixedly connected to the inside of the side panel 82, and is fixedly connected to the button lever 20. The metal parts 821 and the plastic parts 822 are distinguished by different filling patterns in the figure.

[0226] Figure 15 yes Figure 12 The diagram shows a partial structural schematic of one embodiment of the button module 100 as seen from another angle. Figure 16 yes Figure 12 The diagram shows a partial structural schematic of one embodiment of the button module 100 at another angle.

[0227] like Figure 15 and Figure 16 As shown, the emitter 711 of the optical heart rate detection module 71 includes a red light source 7111, a yellow light source 7112, a blue light source 7113, and an infrared light source 7114. The blue light source 7113 has a wavelength range of 400nm to 500nm, and the yellow light source 7112 has a wavelength range of 580nm to 595nm. The receiver 712 can receive reflected light corresponding to the four wavelengths and convert it into electrical signals. It is understood that compared to emitters 711 including red, green, and infrared light sources 7114, the emitter 711 in this embodiment includes more light sources, which can effectively acquire effective physiological signals at different depths under the skin of the user's fingers.

[0228] In some embodiments, a yellow light source 7112 and a blue light source 7113 constitute a first-band light source group S1, and a red light source 7111 and an infrared light source 7114 constitute a second-band light source group S2. The first-band light source group S1 is located on the side of the second-band light source group S2 closer to the receiver 712. Thus, compared to a scheme where the first-band light source group S1 is located on the side of the second-band light source group S2 furthest from the receiver 712, the light source arrangement in this embodiment is more reasonable, which is beneficial to improving the detection accuracy of the optical heart rate detection module 71. Exemplarily, the direction along the emitter 711 towards the receiver 712 is the second direction. Along the second direction, the blue light source 7113 is located on the side of the infrared light source 7114 closer to the receiver 712, and the yellow light source 7112 is located on the side of the infrared light source 7114 closer to the receiver 712.

[0229] In some embodiments, the conductive element 91 may be located on the side of the receiver 712 away from the emitter 711. The conductive element 91 is electrically connected between the ECG electrode 72 and the flexible circuit board 92. The electrical signal of the emitter 711 is greater than the electrical signal of the receiver 712. In this way, the conductive element 91 is far away from the emitter 711, thereby avoiding greater signal interference, which is beneficial for achieving low noise and anti-interference effects.

[0230] In some embodiments, the flexible circuit board 92 includes a first portion 921 and a second portion 922. The first portion 921 of the flexible circuit board 92 is located in the receiving space 811 and is electrically connected to the optical heart rate detection module 71. The first end 9221 of the second portion 922 of the flexible circuit board 92 is connected to the first portion 921 of the flexible circuit board 92, and the second end 9222 of the second portion 922 of the flexible circuit board 92 extends out of the receiving space 811 and passes through the second through hole 302 provided on the housing 300 to enter the interior of the housing 300. The distance between the first end 9221 of the second portion 922 of the flexible circuit board 92 and the emitter 711 is less than the distance between the first end 9221 of the second portion 922 of the flexible circuit board 92 and the receiver 712. It is understood that the flexible circuit board 92 outputs electrical signals from the emitter 711 side, which is beneficial for improving the signal-to-noise ratio of small signals, that is, improving the signal-to-noise ratio of the ECG electrode 72 signal and the signal received by the receiver 712.

[0231] In some implementations, the same technical content as in the previous implementations will not be repeated. Figure 17 yes Figure 1 A partial structural schematic diagram of another embodiment of the body of the electronic device 1000 shown. Figure 18 yes Figure 17 An exploded view of one embodiment of the button module 100 shown. Figure 19 yes Figure 18An exploded view of one embodiment of the button module 100 shown. Figure 20A yes Figure 17 The diagram shows a partial cross-sectional view of one embodiment of the structure at FF. Figure 20B yes Figure 20A The diagram shows an assembly schematic of one embodiment of the cover plate 10, button lever 20, and pressure-sensitive sheet 30. Figure 20B The solid line indicates the position of the pressure-sensitive sheet 30 when the outer surface of the cover plate 10 is not under force, and the dashed line indicates the position of the pressure-sensitive sheet 30 after it is released.

[0232] like Figures 17 to 20B As shown, the button module 100 can be equipped with multiple sets of pressure-sensitive circuits. These multiple sets of circuits detect deformation at more than 30 locations on the pressure-sensitive sheet, increasing the area for detecting deformation and thus improving the sensitivity of pressure detection.

[0233] For example, the button module 100 may include a first pressure-sensitive circuit 41 and a second pressure-sensitive circuit 42. The pressure-sensitive sheet 30 includes a first portion 31, a second portion 32, a third portion 33, a fourth portion 34, and a fifth portion 35. Along the length of the pressure-sensitive sheet 30, the first portion 31, the second portion 32, the third portion 33, the fourth portion 34, and the fifth portion 35 are arranged sequentially; that is, the fourth portion 34 is connected between the third portion 33 and the fifth portion 35, and the first portion 31 and the fifth portion 35 are fixedly connected to the housing 300. The first pressure-sensitive circuit 41 is fixedly connected to the second portion 32 of the pressure-sensitive sheet 30 and is used to detect the deformation of the second portion 32. The second pressure-sensitive circuit 42 is fixedly connected to the fourth portion 34 of the pressure-sensitive sheet 30 and is used to detect the deformation of the fourth portion 34 of the pressure-sensitive sheet 30. This increases the strain area of ​​the pressure-sensitive sheet 30, thereby enabling dual-channel pressure detection. Furthermore, when the user presses the edge of the cover plate 10, at least one of the second portion 32 and the fourth portion 34 of the pressure-sensitive sheet 30 deforms, and the first and / or second pressure-sensitive circuits can detect the deformation of the pressure-sensitive sheet, thus achieving pressure detection. Therefore, compared to a scheme where the pressure-sensitive sheet 30 is fixed on one side, the pressure detection in this embodiment is more sensitive.

[0234] Understandably, the pressure-sensitive sheet 30 can be used as follows: Figure 6A The single-sided cantilever fixation shown can also be achieved by, for example... Figure 20A The button lever 20 shown is fixed on both sides. Alternatively, the pressure-sensitive sheet 30 may include more parts and have more fixing positions with the housing 300, thereby achieving three or more pressure detections. Those skilled in the art can adjust the shape of the pressure-sensitive sheet 30 as needed to achieve multi-position pressure detection, and this application does not impose any limitations.

[0235] It is understood that in this embodiment, when the cover plate 10 is not under force, the pressure-sensitive sheet 30 is in the first state. When the pressure-sensitive sheet 30 is in the first state, the pressure-sensitive sheet 30 and the button lever 20 may not have any interaction force with each other in the first direction; for example, there may be no interaction force between the pressure-sensitive sheet 30 and the button lever 20 at all; or, the pressure-sensitive sheet 30 is subjected to a tensile force in the opposite direction to the first direction applied by the button lever 20. When the pressure-sensitive sheet 30 is in the first state, and the pressure-sensitive sheet 30 and the button lever 20 may not have any interaction force with each other in the first direction, those skilled in the art can achieve pressure sensitivity detection by designing the shape of the pressure-sensitive sheet 30.

[0236] In some embodiments, when the cover plate 10 is not under force, the pressure-sensitive sheet 30 can be set perpendicular to the first direction or at an acute angle to the first direction. In some embodiments, the pressure-sensitive sheet 30 is fixedly connected to the second end 22 of the button lever 20. It is understood that directly fastening the pressure-sensitive sheet 30 to the button lever 20 achieves a tight linkage between the first pressure-sensitive circuit 41, the second pressure-sensitive circuit 42, and the button lever 20, reducing the risk of large-range deformation and yielding of the pressure-sensitive sheet, while improving the deviation when pressed.

[0237] In some embodiments, the button lever 20 includes a first segment 25 and a second segment 26. Along a first direction, the first segment 25 is detachably connected to the second segment 26. The end of the first segment 25 furthest from the second segment 26 is the first end 21 of the button lever 20, and the end of the second segment 26 furthest from the first segment 25 is the second end 22 of the button lever 20. A pressure-sensitive sheet 30 is fixedly connected between the first segment 25 and the second segment 26. For example, the second segment 26 can be a screw. A threaded hole can be correspondingly formed at the end of the first segment 25 near the second segment 26, and the second segment 26 passes through the pressure-sensitive sheet 30 and is locked into the threaded hole. It is understood that the detachable connection of the first segment 25 to the second segment 26 facilitates subsequent maintenance.

[0238] In other embodiments, the button lever 20 and the pressure-sensitive sheet 30 can also be fixedly connected by processes such as gluing or welding.

[0239] In some embodiments, the elastic element 60 may also be a reed, wave spring, C-shaped spring, or spring structure. Figure 19 and Figure 20AThe diagram illustrates that the elastic element 60 is a spring structure. It is understood that when the elastic element 60 is a spring structure, its shape is not limited; it can be a tower spring, a coil spring, or other shapes. It is understood that compared to solutions using soft rubber or foam for the elastic element 60, the use of a spring structure in this embodiment to achieve the rebound of the button module 100 helps improve the stiffness of the elastic element 60 and the creep performance of the button module 100, making the rebound of the button module 100 more sensitive.

[0240] In some embodiments, the button device further includes a screw 1 and a nut 2, with the nut 2 fixedly connected to the housing 300, and the screw 1 passing through the pressure-sensitive sheet 30 and locked to the nut 2. It is understood that, compared to the pressure-sensitive sheet 30 being directly locked to the housing 300 by the screw 1, the use of the screw 1 and nut 2 in this embodiment makes it easier to control and adjust the installation position of the pressure-sensitive sheet 30 on the housing 300, resulting in better installation consistency.

[0241] In other embodiments, the positions of screw 1 and nut 2 can also be interchanged, that is, screw 1 is fixedly connected to housing 300, nut 2 is fixedly connected to pressure-sensitive sheet 30, screw 1 passes through pressure-sensitive sheet 30 and is locked to nut 2.

[0242] It is understood that this application does not limit the connection positions of the pressure-sensitive sheet 30 with the button lever 20, the housing 300, and the pressure-sensitive circuit. Those skilled in the art can adjust the connection positions of the screw 1, the pressure-sensitive circuit, and the pressure-sensitive sheet 30 according to specific needs.

[0243] Figure 21 yes Figure 17 The diagram shows a partial cross-sectional view of one embodiment of the structure at GG.

[0244] like Figure 20A and Figure 21 As shown, the first pressure-sensitive circuit 41 and the second pressure-sensitive circuit 42 can be fixedly connected to the side of the pressure-sensitive sheet 30 near the cover plate 10. It is understood that since the first pressure-sensitive circuit 41 and the second pressure-sensitive circuit 42 are fixedly connected to the side of the pressure-sensitive sheet 30 near the cover plate 10, the electrical connector 43 can draw electrical signals between the pressure-sensitive sheet 30 and the housing 300. When the electrical connector 43 is a flexible circuit board, it can reduce the occurrence of tearing of the flexible circuit board after repeated pulling, and reduce the risk of peeling between the flexible circuit board and the first pressure-sensitive circuit 41 and the second pressure-sensitive circuit 42.

[0245] It is understood that this application does not limit the connection position and connection method of the button lever 20 and the pressure-sensitive sheet 30, and those skilled in the art can make settings according to specific needs.

[0246] This application does not limit the connection position and connection method of the button lever 20 and the pressure-sensitive sheet 30. The pressure-sensitive sheet 30 can be fixedly connected to the button lever 20 or not. Those skilled in the art can make the settings according to specific needs.

[0247] This application does not limit the connection method between the button lever 20 and the cover plate 10; those skilled in the art can make the configuration according to specific needs.

[0248] This application does not limit the shape of the pressure-sensitive sheet 30. Those skilled in the art can make it according to specific needs so that the pressure-sensitive sheet 30 can better deform according to the force of the cover plate 10.

[0249] This application does not limit the connection position of the pressure-sensitive sheet 30 and the housing 300. Those skilled in the art can make the settings according to specific needs, and can adjust the locking position of the screw 1 on the pressure-sensitive sheet 30.

[0250] This application does not limit the connection position and connection method of the pressure-sensitive circuit and the pressure-sensitive sheet 30. Those skilled in the art can make the settings according to specific needs.

[0251] It is understood that, without conflict, the embodiments and features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of this application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0252] It is understood that all the above figures are exemplary illustrations of this application and do not represent the actual size of the product. Furthermore, the dimensional proportions between the components in the figures are not intended to limit the actual product of this application.

[0253] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A button module (100), characterized in that, The button module (100) is used to install on the housing of the button device. The housing is provided with a first through hole (301) that connects the inside and outside of the housing. The button module (100) includes a cover plate (10), a button rod (20), and a pressure-sensitive sheet (30). The top surface (11) of the cover plate (10) is exposed on the outer surface of the housing. The first end of the button rod (20) is disposed on the bottom surface of the cover plate (10). The second end of the button rod (20) enters the inside of the housing through the first through hole (301). The second end of the button rod (20) is connected to the pressure-sensitive sheet (30). When the outer surface of the cover plate (10) is not subjected to force, the pressure-sensitive sheet (30) is in the first state. When the outer surface of the cover plate (10) is subjected to pressure in the first direction, the first direction refers to the direction from the first end of the button rod (20) to the second end of the button rod (20). The button rod (20) moves along the first direction, causing the pressure-sensitive sheet (30) to switch from the first state to the second state. The first pressure-sensitive circuit (41) is used to detect the deformation of the pressure-sensitive sheet (30).

2. The button module (100) according to claim 1, characterized in that, When the outer surface of the cover plate (10) is not subjected to force, the pressure-sensitive sheet (30) is subjected to a force in the opposite direction to the first direction.

3. The button module (100) according to claim 2, characterized in that, When the outer surface of the cover plate (10) is not under force, the surface of the pressure-sensitive sheet (30) away from the cover plate (10) abuts against the button rod (20).

4. The button module (100) according to any one of claims 1 to 3, characterized in that, The first end of the button lever (20) is fixedly connected to the bottom surface of the cover plate (10).

5. The button module (100) according to any one of claims 1 to 3, characterized in that, The button module (100) further includes a first pressure-sensitive circuit (41), which is fixedly connected to the pressure-sensitive sheet (30).

6. The button module (100) according to any one of claims 1 to 3, characterized in that, The cover plate (10) is installed on the outer casing.

7. The button module (100) according to any one of claims 1 to 3, characterized in that, The button module (100) also includes an elastic element (60) for abutting against the bottom surface of the cover plate (10) and the outer shell.

8. The button module (100) according to claim 7, characterized in that, The elastic element (60) is soft rubber, rubber pad, foam, spring sheet, spring sheet, wave spring, C-shaped spring or spring.

9. The button module (100) according to any one of claims 1 to 3, characterized in that, The button module (100) is used to be installed in the mounting slot (303) of the housing. The button module (100) also includes a side plate (82), which is fixedly connected to the cover plate (10). The button module (100) also includes a rubber ring (50), which is fixedly connected to the side plate (82) and abuts against the wall of the side plate (82) and the mounting groove (303) to seal the gap between the outer shell and the side plate (82).

10. The button module (100) according to claim 9, characterized in that, The rubber ring (50) includes a side wall (51) and a bottom wall (52), and the bottom wall (52) of the rubber ring (50) is connected to the inside of the side wall (51) of the rubber ring (50); The side plate (82) is annular, and the side wall (51) of the rubber ring (50) is sleeved on the outside of the side plate (82) and abuts against the groove wall of the side plate (82) and the mounting groove (303). The bottom surface of the side plate (82) faces away from the cover plate (10), and the bottom wall (52) of the rubber ring (50) is fixedly connected to the bottom surface of the side plate (82).

11. The button module (100) according to any one of claims 1 to 3, characterized in that, The button lever (20) is provided with a groove (23), the opening of which is located on the peripheral side (24) of the button lever (20), and the groove (23) is used to engage the pressure-sensitive sheet (30).

12. The button module (100) according to claim 11, characterized in that, In a direction perpendicular to the first direction, there is a gap (Q1) between the pressure-sensitive sheet (30) and the button lever (20).

13. The button module (100) according to any one of claims 1 to 3, characterized in that, The pressure-sensitive sheet (30) is fixedly connected to the second end of the button lever (20).

14. The button module (100) according to claim 13, characterized in that, The button lever (20) includes a first segment (25) and a second segment (26). Along the first direction, the first segment (25) is detachably connected to the second segment (26). The end of the first segment (25) away from the second segment (26) is the first end of the button lever (20), and the end of the second segment (26) away from the first segment (25) is the second end of the button lever (20). The pressure-sensitive sheet (30) is fixedly connected between the first segment (25) and the second segment (26).

15. The button module (100) according to any one of claims 1 to 3, characterized in that, The first pressure-sensitive circuit (41) is fixedly connected to the side of the pressure-sensitive sheet (30) near the cover plate (10).

16. The button module (100) according to any one of claims 1 to 3, characterized in that, The pressure-sensitive sheet (30) is strip-shaped. Along the length of the pressure-sensitive sheet (30), the pressure-sensitive sheet (30) includes a first part, a second part, and a third part (33) connected in sequence. The first part of the pressure-sensitive sheet (30) is fixedly connected to the outer shell. The first pressure-sensitive circuit (41) is fixedly connected to the second part of the pressure-sensitive sheet (30). The third part (33) of the pressure-sensitive sheet (30) is connected to the second end of the button lever (20).

17. The button module (100) according to claim 16, characterized in that, The pressure-sensitive sheet (30) further includes a fourth part (34) and a fifth part (35). Along the length direction of the pressure-sensitive sheet (30), the fourth part (34) of the pressure-sensitive sheet (30) is connected between the third part (33) of the pressure-sensitive sheet (30) and the fifth part (35) of the pressure-sensitive sheet (30). The fifth part (35) of the pressure-sensitive sheet (30) is fixedly connected to the outer shell. The button module (100) further includes a second pressure-sensitive circuit (42), which is fixedly connected to the fourth part (34) of the pressure-sensitive sheet (30).

18. The button module (100) according to any one of claims 1 to 3, characterized in that, The button module (100) also includes a functional component (70), which includes one or more of the following: an optical heart rate detection module (71), an electrocardiogram electrode (72), a camera, an ambient light sensor, a fingerprint detection module, an infrared emitter, a distance sensor, and a body fat detection module.

19. The button module (100) according to claim 18, characterized in that, The button module (100) also includes a support plate (81), the support plate (81) and the cover plate (10) enclose an accommodating space (811), and the optical heart rate detection module (71) is located in the accommodating space (811).

20. The button module (100) according to claim 19, characterized in that, The optical heart rate detection module (71) includes a light emitter (711) and a receiver (712) arranged at intervals. The light emitter (711) includes a red light source (7111), a yellow light source (7112), a blue light source (7113), and an infrared light source (7114).

21. The button module (100) according to claim 20, characterized in that, The yellow light source (7112) and the blue light source (7113) constitute a first band light source group (S1), and the red light source (7111) and the infrared light source (7114) constitute a second band light source group (S2). The first band light source group (S1) is located on the side of the second band light source group (S2) closer to the receiver (712).

22. The button module (100) according to claim 20 or 21, characterized in that, The button module (100) also includes an electrocardiogram electrode (72) and a conductive element (91). A portion of the electrocardiogram electrode (72) is fixed to the top surface (11) of the cover plate (10), and a portion is fixed to the bottom surface of the cover plate (10). The conductive element (91) is located in the receiving space (811) and is electrically connected to the electrocardiogram electrode (72). The conductive element (91) is located on the side of the receiver (712) away from the light emitter (711).

23. The button module (100) according to claim 20 or 21, characterized in that, The button module (100) also includes a flexible circuit board (92), which includes a first part and a second part. The first part of the flexible circuit board (92) is located in the receiving space (811) and is electrically connected to the optical heart rate detection module (71). The first end of the second part of the flexible circuit board (92) is connected to the first part of the flexible circuit board (92), and the second end of the second part of the flexible circuit board (92) extends out of the receiving space (811) and passes through the second through hole (302) provided on the housing to enter the interior of the housing. The distance between the first end of the second portion of the flexible circuit board (92) and the light emitter (711) is less than the distance between the first end of the second portion of the flexible circuit board (92) and the receiver (712).

24. A button device, characterized in that, The device includes a housing and a button module (100) according to any one of claims 1 to 23, the button module (100) being mounted on the housing, the second end of the button lever (20) of the button module (100) entering the interior of the housing through a first through hole (301) on the housing and being connected to a pressure-sensitive sheet (30) located inside the housing.

25. The button device according to claim 24, characterized in that, The flexible circuit board (92) of the button module (100) enters the interior of the housing through the second through hole (302) on the housing.

26. The button device according to claim 24 or 25, characterized in that, The button device also includes a screw (1) and a nut (2), the nut (2) being fixedly connected to the housing, and the screw (1) passing through the pressure-sensitive sheet (30) and being locked to the nut (2).

27. An electronic device (1000), characterized in that, Includes the button device according to any one of claims 24 to 26.

28. The electronic device (1000) according to claim 27, characterized in that, The electronic device (1000) further includes a screen (200), a mid-frame (310) and a back cover (320), the mid-frame (310) being connected between the screen (200) and the back cover (320), and the housing of the button device being part of the mid-frame (310).

29. The electronic device (1000) according to claim 28, characterized in that, The electronic device (1000) is a watch or a bracelet.

30. The electronic device (1000) according to claim 29, characterized in that, The electronic device (1000) further includes a first watch band (1003) and a second watch band (1004), the first watch band (1003) and the second watch band (1004) being connected to both ends of the middle frame (310), and the button device being disposed on the side of the middle frame (310) near the first watch band (1003).

31. The electronic device (1000) according to any one of claims 28 to 30, characterized in that, The pressure-sensitive sheet (30) is fixedly connected to the middle frame (310) at a first position, and the pressure-sensitive sheet (30) is connected to the second end of the button bar (20) at a second position. The first position and the second position are arranged circumferentially along the middle frame (310).

32. The electronic device (1000) according to any one of claims 27 to 30, characterized in that, The electronic device (1000) also includes a motor, which is mounted on the housing (300) of the electronic device (1000). The motor is electrically connected to the first pressure-sensitive circuit (41), and the motor vibrates according to the data detected by the first pressure-sensitive circuit (41).

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