WO2025209318A1 - Button module and electronic device - Google Patents

Abstract

The present application provides a button module and an electronic device. The button module comprises a cover plate, a first detection assembly, and a second detection assembly, wherein the cover plate comprises a first region for arranging the first detection assembly and a second region for arranging the second detection assembly, the first detection assembly is an optical heart rate detection module or an electrocardiogram detection module, and the second detection assembly is one or more of a camera, an ambient light sensor, a fingerprint detection module, an infrared emitter, a distance sensor, and a body fat detection module. The button module is used for detecting a user operation on the button module. By integrating the first detection assembly and the second detection assembly on the button module, the functions of the button module can be further expanded, facilitating multifunctionalization of the electronic device.

Description

Key modules and electronic devices

This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on April 1, 2024, with application number: 202410396426.7, and priority to the Chinese patent application with the invention name “Key module and electronic device”, all contents of which are incorporated by reference into this application.

Technical Field

The present application relates to the technical field of electronic devices, and in particular to a key module and an electronic device.

Background Art

Today, people's demands for electronic devices are increasing. Users hope to integrate more health monitoring, environmental monitoring, and interactive functions into small electronic devices. For example, users hope that electronic devices can not only detect multiple indicators such as blood oxygen, electrocardiogram, heart rate, blood pressure, blood lipids, blood sugar, body fat, and ultraviolet rays, but also perform comprehensive analysis based on some of these indicators to form micro-physical examination modes or stress detection modes, allowing users to monitor their physical health. Interactive functions make it easier for users to operate electronic devices. Therefore, how to make electronic devices multifunctional while achieving miniaturization and portability has become an industry development trend.

Summary of the Invention

The present application provides a key module and an electronic device.

In a first aspect, embodiments of the present application provide a key module. The key module includes a cover plate, a first detection component, and a second detection component. The cover plate includes a first area for arranging the first detection component and a second area for arranging the second detection component. The first detection component is an optical heart rate detection module or an electrocardiogram detection module. The second detection component is one or more of a camera, an ambient light sensor, a fingerprint detection module, an infrared emitter, a distance sensor, and a body fat detection module. The key module is used to detect user operations on the key module.

It can be understood that by integrating the first detection component and the second detection component on the button module, the first detection component can be used to detect the user's heart rate or electrocardiogram, which can reflect the physiological indicators of the user's physical health. The second detection component is one or more of a camera, an ambient light sensor, a fingerprint detection module, an infrared emitter, a distance sensor and a body fat detection module. The quantity and category of the second components are selected according to needs and integrated into the button module, which can further increase the function of the button module and is conducive to the multifunctionality of the button module.

Moreover, through the combination of the first detection component and the second detection component, the button module can not only have the functions that can be achieved when the first detection component or the second detection component is used as a single device, but the first detection component and the second detection component can also cooperate with each other to achieve the functions of multiple devices. This is conducive to the multifunctionality of the button module and can improve the user experience.

The user can also operate the electronic device by touching or pressing the button module to achieve interaction with the electronic device. For another example, the button module can recognize the user's gestures, and the user can operate the electronic device through different gestures to achieve interaction with the electronic device.

In one embodiment, the button module is disposed on a side of the electronic device.

It is understood that installing the button module on the side of the electronic device makes it easier for users to touch or press it. Compared with the solution of installing the button module on the screen, installing the button module on the side of the electronic device does not occupy the display area of the screen, which helps to increase the display area of the electronic device.

In one embodiment, the first detection component is an optical heart rate detection module, which includes a light receiver and a light emitter arranged at intervals. The first area is a light-transmitting area for transmitting light emitted by the light emitter, and the light receiver is used to receive light passing through the light-transmitting area.

It is understood that the side of the electronic device can surround the front of the electronic device (the side facing the user when the electronic device is in normal use). For electronic devices with a display screen, such as smart watches or smart bracelets, the front is the side where the screen is located, and the side of the electronic device can surround the screen. For electronic devices without a screen, the front can be the main user interface of the electronic device, and the side of the electronic device can surround the main user interface.

Mounting the button module on the side of the electronic device makes it easier for users to touch or press it. Compared with the solution of mounting the button module on the screen, mounting the button module on the side of the electronic device does not occupy the display area of the screen, which helps to increase the display area of the electronic device.

In one embodiment, the key module further includes a light-shielding structure, and the light-shielding structure is located between the light emitter and the light receiver.

It is understood that the light shielding structure can be used to block light emitted by the light emitter from directly entering the light receiver along the path below the top surface of the cover plate, thereby interfering with the light receiver's reception of light reflected or scattered by the user's tissue. Alternatively, the light shielding structure can be used to ensure that as much light as possible is received by the light receiver from light reflected or scattered by the user's tissue, thereby improving the detection accuracy of the optical heart rate detection module.

In one embodiment, the key module further includes a Fresnel film, and the Fresnel film is disposed between the light emitter and the first area.

It is understood that the Fresnel film can be used to shield other structures near the light emitter, preventing users from seeing these structures from the outside of the cover plate, thereby enhancing the product's appearance. The Fresnel film can also allow light emitted by the light emitter to pass through, making the light more concentrated or reducing scattering, thereby enhancing the brightness of the light emitter.

In one embodiment, the key module further includes a bracket and a circuit board, the cover is arranged on the first surface of the bracket, the circuit board is arranged on the second surface of the bracket, and the first surface and the second surface are arranged opposite to each other.

It is understood that the bracket can support a space between the cover and the circuit board for placing the optical heart rate detection module and the ambient light sensor. It is understood that the cover, bracket and circuit board can be used to protect the components located in the space.

In one embodiment, the first detection component is an optical heart rate detection module, which includes a light receiver and a light emitter that are spaced apart, and the light receiver and the light emitter are located between the cover and the circuit board.

It can be understood that the cover plate, the bracket and the circuit board can protect the light receiver and the light emitter and prevent dust.

In one embodiment, the second detection component is located between the cover plate and the circuit board. The key module further includes a light-transmitting member, which is used to fill the accommodation space formed by the circuit board, the bracket and the cover plate, and connects the first detection component, the second detection component and the circuit board.

It is understandable that the provision of the light-transmitting member can protect the first detection component and the second detection component from dust and water, and the light-transmitting member will not interfere with the first detection component or the second detection component emitting and receiving light.

In one embodiment, the bracket includes a sidewall and a baffle. The sidewall is annular. The sidewall, the circuit board, and the cover plate enclose a storage space. The baffle connects the inner side of the sidewall, the cover plate, and the circuit board. The baffle, the first area, and the circuit board enclose a first storage space. The baffle, the second area, and the circuit board enclose a second storage space. The first detection assembly is disposed in the first storage space, and the second detection assembly is disposed in the second storage space.

It is understood that the baffle divides the accommodating space into a first space and a second space, with the first detection component disposed in the first space and the second detection component disposed in the second space. Thus, if water intrudes into one of the first and second spaces, causing a device failure, the baffle can prevent the water vapor from spreading to the other space, while the device in the other space remains protected and the key module can retain some functionality.

In one embodiment, the circuit board includes a first portion and a second portion, the first portion and the second portion are arranged along the length of the cover plate, and the first portion and the second portion are arranged at an angle therebetween. The first detection component is disposed in the first portion, and the second detection component is disposed in the second portion.

It is understandable that when the side of the electronic device is curved, the circuit board is divided into a first part and a second part set at an angle. When the key module is installed on the side, the circuit board can better match the shape of the side, avoiding space waste of the electronic device.

In one embodiment, the first region and the second region are arranged along the length direction of the cover plate.

It is understood that when the key module is mounted on the side of an electronic device, the first direction can be arranged substantially parallel to the screen. Compared to the first direction being perpendicular to the screen, the first and second regions of this embodiment are arranged parallel to the screen, which reduces the thickness requirement of the electronic device and allows the key module to meet the requirements for thinning the electronic device.

In one embodiment, the key module further includes a pressure sensing circuit and a pressure sensing component, wherein the pressure sensing component is disposed on the inner side of the cover plate, and the pressure sensing circuit is fixed to the pressure sensing component. When the cover plate is subjected to pressure and the pressure sensing component deforms, the pressure sensing circuit is used to detect the deformation of the pressure sensing component.

It is understood that the resistance value of the pressure-sensing circuit can change based on the degree of deformation of the pressure-sensing component. The electronic device can be provided with a pressure-sensing chip. The pressure-sensing chip can be mounted on a motherboard and electrically connected to the motherboard. The pressure-sensing chip can be electrically connected to the pressure-sensing circuit. The electronic device can provide a current with a fixed voltage value to the pressure-sensing circuit. When the resistance value of the pressure-sensing circuit changes, the current in the pressure-sensing circuit will also change accordingly. The pressure-sensing chip can determine the force with which the user presses the housing based on the magnitude of the current.

When the force between the user's finger and the cover is small, the depth of penetration of the light emitted by the light emitter into the tissue under the user's skin is limited, and the user's blood vessels are at a certain depth from the surface of the user's skin. Generally, the greater the force applied by the user on the cover, the better the fit between the finger and the cover, and the deeper the light emitted by the light emitter penetrates into the user's skin. Therefore, when the key module 100 is used to measure the PPG signal, a first threshold value can be set. When the force between the user's finger and the cover is greater than or equal to the first threshold value, the light emitted by the light emitter penetrates the user's skin to a greater depth, allowing most of the light to illuminate the location of the blood vessels under the user's skin. When the pressure sensing chip monitors that the real-time force detected by the pressure sensing component is greater than or equal to the first threshold value, the pressure sensing chip controls the key module 100 to start collecting the user's PPG signal, so that the collected PPG signal has better accuracy.

In one embodiment, the first detection component is an electrocardiogram detection module, which includes a first electrode. The first electrode is at least partially disposed on an outer surface of the first region.

It can be understood that the outer surface of the first area is part of the top surface of the cover. When the user performs an electrocardiogram test, the user can touch the top surface of the cover with his finger, touch the first electrode, and achieve electrical connection of the first electrode, so that the first electrode can collect the user's electrical signal.

In one embodiment, the button module further includes a third detection component, and the cover plate further includes a third area for arranging the third detection component.

It is understandable that the key module may further include more detection components, and the key module may have more functions, which is conducive to the multifunctionality of the key module.

In one embodiment, the first detection component is an optical heart rate detection module, the third detection component is an electrocardiogram detection module, the electrocardiogram detection module includes a first electrode, and the first electrode is at least partially disposed on the outer surface of the third region.

It is understandable that when the user's finger touches the top surface of the cover, the button module can simultaneously measure the user's ECG signal and PPG signal. The PPG signal (a type of heart rate signal) can also be combined with the ECG waveform to determine through an algorithm a more accurate user's blood pressure and other biometric information related to the human cardiovascular system. The button module can simultaneously collect the user's ECG waveform and PPG signal, calculate the time difference PPT between the two through an algorithm, and then convert the formula to obtain the user's blood pressure data.

In one embodiment, the key module further includes a bracket and a circuit board, wherein the cover is disposed on a first side of the bracket and the circuit board is disposed on a second side of the bracket, with the first side and the second side being disposed opposite each other. The electrocardiogram detection module further includes a conductive member disposed between the cover and the circuit board and electrically connected between the first electrode and the circuit board.

It can be understood that the conductive member can transmit the electrical signal collected by the first electrode to the circuit board.

In one embodiment, the second detection component is a body fat detection module, which includes a second electrode disposed on an outer surface of the second region. An insulating structure is disposed between the first electrode and the second electrode.

It is understood that an insulating structure made of insulating material is provided between the first electrode and the second electrode to insulate the first electrode from the second electrode. The first electrode of the ECG detection module can also participate in body fat detection, serving as an electrode for body fat detection, that is, the ECG detection module and the body fat detection module can share the first electrode. By eliminating one electrode for body fat detection, the area required for the cover plate is reduced, which is conducive to reducing the area of the cover plate and facilitating the miniaturization of the key module.

When a user wears an electronic device to measure body fat, he or she touches the second area and the third area with one finger at the same time. A reference electrode can also be provided on the back of the electronic device, and the reference electrode contacts the user's wrist skin. The first electrode, the second electrode and the reference electrode can all be electrically connected to the body fat chip. The body fat chip obtains the user's body fat data based on the electrical signals collected by the three electrodes.

In a second aspect, an embodiment of the present application provides an electronic device, which includes a housing and a key module, wherein the key module is mounted on the housing.

It is understandable that when the key module is installed on an electronic device, it is conducive to the miniaturization of the electronic device. The key module can occupy a smaller surface area of the electronic device, which is conducive to saving the stacking space of the entire device. More other functional components can be installed on the surface of the electronic device, thereby meeting the diverse needs of users.

In one embodiment, the electronic device is a watch or a bracelet.

It is understandable that a watch or a bracelet can integrate more functions on the button module in a small size, which is conducive to the multifunctionality of the watch or the bracelet.

In one embodiment, the electronic device further includes a screen, the housing includes a middle frame and a back cover, the middle frame is connected between the screen and the back cover, and the button module is installed on the outer surface of the middle frame.

It is understood that the outer surface of the middle frame refers to the surface of the middle frame away from the internal space of the electronic device, that is, the side of the electronic device. Mounting the key module 100 on the side of the electronic device makes it easier for the user to touch or press it. Compared to mounting the key module 100 on the screen, mounting the key module 100 on the side of the electronic device does not occupy the display area of the screen, which helps to increase the display area of the electronic device.

In one embodiment, the electronic device further includes a motor, which is disposed in the housing and vibrates according to data detected by the key module.

It's understandable that the entire device's algorithm sets a corresponding threshold. When a user presses the cover with their finger, the resistance of the pressure-sensing circuit changes, generating an electrical signal that is calculated by the pressure-sensing chip inside the device. The pressure-sensing chip can be electrically connected to a motor, controlling the motor to produce a vibration, achieving a function similar to a virtual button. When the button module is used as a button on an electronic device, the motor can vibrate to indicate to the user whether the button operation is valid.

In one embodiment, the motor may be mounted on the rear cover.

It is understandable that when a user wears an electronic device, the back cover is in close contact with the user's wrist skin, and the motor vibration can be better perceived by the user through the back cover.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be described below.

FIG1 is a schematic diagram of an embodiment of an electronic device provided in an embodiment of the present application;

FIG2 is an exploded schematic diagram of an embodiment of the watch body shown in FIG1 ;

FIG3 is a partial cross-sectional view of one embodiment of the electronic device shown in FIG1 taken along section line A-A;

FIG4 is a structural diagram of an embodiment of the key module shown in FIG3 ;

FIG5 is an exploded schematic diagram of an embodiment of the key module shown in FIG4 ;

FIG6 is a cross-sectional view of an embodiment of the key module shown in FIG4 at section line B-B;

FIG7 is a schematic diagram of an embodiment of the cover plate shown in FIG6 at another angle;

FIG8 is a schematic diagram of an assembly of the light emitter, light receiver, ambient light sensor, and circuit board shown in FIG6 ;

FIG9 is a schematic structural diagram of an embodiment of the bracket shown in FIG5 ;

FIG10 is a schematic structural diagram of the bracket shown in FIG8 at another angle;

FIG11 is a partial cross-sectional view of one embodiment of the electronic device shown in FIG1 taken along section line C-C;

FIG12 is an exploded schematic diagram of another embodiment of the key module shown in FIG4 ;

FIG13 is a schematic structural diagram of an embodiment of the key module shown in FIG4 at section line D-D;

FIG14 is a partial structural diagram of another embodiment of the key module shown in FIG4 at another angle;

FIG15 is a partial structural diagram of another embodiment of the key module shown in FIG4 at another angle;

FIG16 is a schematic structural diagram of another embodiment of the watch body shown in FIG1 ;

FIG17 is a schematic structural diagram of another embodiment of the watch body shown in FIG1 ;

FIG18 is a schematic structural diagram of another embodiment of the watch body shown in FIG1 .

DETAILED DESCRIPTION

The embodiments of the present application are described below in conjunction with the accompanying drawings. The embodiments described herein with reference to the accompanying drawings are exemplary and intended to be used to explain the present application, and should not be understood as limiting the present application.

In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. 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 the present application, "electrical connection" can be understood as the physical contact and electrical conduction of components; it can also be understood as the form in which different components in the circuit structure are connected through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals. "Connection" and "connected" can both refer to a mechanical connection relationship or a physical connection relationship. For example, A is connected to B or A and B are connected to each other, which means that there is a fastening component (such as a screw, bolt, rivet, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to separate.

Furthermore, the word "fixed" in this article should also be understood in a broad sense. For example, "fixed" can be directly fixed or indirectly fixed through an intermediate medium. Among them, "fixed" means connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present application, such as "upper", "lower", etc., are only referenced to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. "Multiple" refers to two or more than two.

In the embodiments of this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first," "second," "third," or "fourth" may explicitly or implicitly include one or more of the features.

In the embodiments of the present application, the mathematical concepts mentioned, such as parallel and perpendicular, are all in terms of the current state of the art, rather than being absolutely strict definitions in a mathematical sense. A small amount of deviation is allowed, and being approximately parallel or approximately perpendicular is acceptable. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 and 10 degrees. For example, A and B are perpendicular, which means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 1 and 100 degrees.

In the description of the embodiments of this application, unless otherwise specified, "and/or" is simply a description of an association relationship between associated objects, indicating that three relationships can exist. For example, "A and/or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone.

It is understood that the specific embodiments described herein are only used to explain the relevant application, rather than to limit the application. It should also be noted that, for ease of description, only the parts related to the present application are shown in the drawings.

FIG1 is a schematic diagram of an electronic device 1000 according to an embodiment of the present application.

The electronic device 1000 may include but is not limited to wearable devices such as smart watches, sports watches, bracelets, augmented reality (AR) glasses, virtual reality (VR) glasses or headphones. The electronic device 1000 may also be a terminal product such as a mobile phone, a tablet or a home appliance. The electronic device 1000 shown in Figure 1 is described using a smart watch as an example. It should be noted that Figure 1 only schematically shows some components included in the electronic device 1000, and the actual size, actual position and actual structure of these components are not limited by the figure. The following figures also only schematically show some components, and the actual size, actual position and actual structure of these components are also not limited by the following figures. The details will not be repeated below.

As shown in Figure 1, electronic device 1000 may include a watch body 1001 and a watch strap 1002. Watch strap 1002 is connected to watch body 1001. For example, there may be two watch straps 1002, connected to both ends of watch body 1001. When a user wears electronic device 1000, watch strap 1002 may be used to secure watch body 1001 to the user. In other embodiments, there may be only one watch strap 1002.

FIG2 is an exploded schematic diagram of an embodiment of the watch body 1001 shown in FIG1 .

As shown in Figures 1 and 2, the watch body 1001 may include a key module 100, a screen 200, and a housing 300. The key module 100 may be mounted on the housing 300. The key module 100 may be used to detect user operations on the key module 100.

In some embodiments, 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, an active-matrix organic light-emitting diode (AMOLED) display screen, or a liquid crystal display (LCD).

Exemplarily, the housing 300 may include a middle frame 310 and a back cover 320. The screen 200 and the back cover 320 are spaced apart relative to each other, and the middle frame 310 is connected between the screen 200 and the back cover 320. The screen 200, the middle frame 310 and the back cover 320 together enclose an internal space 1003 of the electronic device 1000. The internal space 1003 of the electronic device 1000 can be used to place components of the electronic device 1000, such as a motherboard, a battery, a speaker, or a microphone. In other embodiments, the middle frame 310 and the back cover 320 may also be an integral structural component. When the 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.

In other embodiments, when the electronic device 1000 does not include the screen 200, the housing 300 may further include a front cover, the front cover and the back cover 320 are spaced apart from each other, and the middle frame 310 is connected between the front cover and the back cover 320. The front cover, the middle frame 310, and the back cover 320 together enclose the interior space 1003 of the electronic device 1000.

FIG3 is a partial cross-sectional view of one embodiment of the electronic device 1000 shown in FIG1 at section line A-A.

As shown in Figures 1 and 3, the button module 100 can be set on the side 1004 of the electronic device 1000. The side 1004 of the electronic device 1000 can surround the front of the electronic device 1000 (the side facing the user when the electronic device 1000 is in normal use). Among them, for an electronic device 1000 with a display screen, such as a smart watch or smart bracelet, the front is the side where the screen 200 is located, and the side 1004 of the electronic device 1000 can surround the screen 200. For an electronic device 1000 without a screen 200, the front can be the main user interface of the electronic device 1000, and the side 1004 of the electronic device 1000 can surround the main user interface.

Exemplarily, when the housing 300 includes a middle frame 310 and a back cover 320, the button module 100 can be installed on the middle frame 310 and exposed relative to the outer surface 3101 of the middle frame 310. The outer surface 3101 of the middle frame 310 refers to the surface of the middle frame 310 away from the internal space 1003 of the electronic device 1000, that is, the side 1004 of the electronic device 1000. It can be understood that installing the button module 100 on the side 1004 of the electronic device 1000 is convenient for the user to touch or press. Compared with the solution of installing the button module 100 on the screen 200, installing the button module 100 on the side 1004 of the electronic device 1000 does not need to occupy the display area of the screen 200, which is conducive to increasing the display area of the electronic device 1000.

In some embodiments, when the electronic device 1000 is not provided with a screen 200 , the button module 100 can be installed on the front side of the electronic device 1000 .

The key module 100 is used to detect user operations on the key module 100. For example, the user can also operate the electronic device 1000 by touching or pressing the key module 100 to interact with the electronic device 1000. For another example, the key module 100 can recognize user gestures, and the user can operate the electronic device 1000 through different gestures to interact with the electronic device 1000.

In some embodiments, the button module 100 can 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. In other embodiments, the button module 100 can also be a button with a travel distance. To activate the button function, the user needs to press the button module 100 to move the button module 100 relative to the middle frame 310, generating a certain displacement, in order to activate the button function.

In some embodiments, the key module 100 can be used to detect the user's health parameter indicators. This allows the user to monitor their health status at any time. For example, the key module 100 can be used to measure the user's blood pressure, electrocardiogram, heart rate, blood oxygen, blood lipids, blood sugar and other physiological health parameters. It is understandable that by integrating the health monitoring function of the electronic device 1000 into the key module 100, the key module 100 can have more functions and can also save space for setting up additional health detection devices, which is conducive to the miniaturization of the electronic device 1000 while achieving multifunctionality.

In some embodiments, the key module 100 can also be electrically connected to circuits within the electronic device 1000. For example, when the electronic device 1000 includes a main board and a sub-board, the key module 100 can be electrically connected to the main board and/or the sub-board to achieve signal transmission. When the electronic device 1000 includes only a main board, the key module 100 can be electrically connected to the main board.

In some embodiments, the electronic device 1000 may further include a processor (not shown), which may be fixed to and electrically connected to the mainboard. The key module 100 may be electrically connected to the processor. Signals collected by the key module 100 may be transmitted to the processor via the mainboard.

In some embodiments, the processor can be configured to comprehensively analyze the health parameters of multiple users detected by the key module 100 to determine whether the user's current physical condition is healthy. If the analysis results indicate that the user is currently in a sub-healthy state, the processor can also provide adjustment suggestions for the user's lifestyle, work, and eating habits based on the analysis results. In some embodiments, the processor can also be configured to analyze the user's current mental state based on the parameters detected by the key module 100 to determine whether the user has mental health issues such as depression.

As shown in Figure 1, the button module 100 can be set on the left or right side of the middle frame 310. When the user wears the electronic device 1000 and the arm is naturally hanging down, 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 a 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 surrounds the user's wrist, and the electronic device 1000 is wearable. It can be understood that compared with the top or bottom of the middle frame 310, the left or right side of the middle frame 310 has a larger space, which can be used to set the button module 100.

As shown in Figure 3, the key module 100 may include a cover plate 10, a first detection component 20, and a second detection component 30. For ease of description, the width direction of the key module 100 is defined as the X-axis. The length direction of the key module 100 is defined as the Y-axis. The thickness direction of the key module 100 is defined as the Z-axis. It is understood that the coordinate system setting can be flexibly set according to specific actual needs. It is understood that the coordinate system direction here applies to all embodiments of the present application.

The cover plate 10 can be used as a working panel for the key module 100. For example, the cover plate 10 may include a top surface 101, a bottom surface 102, and side surfaces 103. The top surface 101 and the bottom surface 102 are disposed opposite each other, and the side surfaces 103 are connected between the top surface 101 and the bottom surface 102. In other words, the top surface 101, the side surfaces 103, and the bottom surface 102 of the cover plate 10 may be arranged sequentially from top to bottom along the Z-axis.

When the button module 100 is mounted on the middle frame 310, the top surface 101 of the cover plate 10 can be exposed from the middle frame 310. When the button module 100 is in operation, the user can touch the top surface 101 of the cover plate 10 to perform user operations. The following describes in detail how the user can perform user operations by touching the top surface 101 of the cover plate 10.

For example, the cover plate 10 may be entirely made of glass, plastic or other materials, or the cover plate 10 may be formed by assembling a plurality of structural parts made of various materials through gluing or other methods.

The cover plate 10 includes a first area 1 for arranging a first detection component 20 and a second area 2 for arranging a second detection component 30 .

In some embodiments, the first area 1 and the second area 2 can be arranged along a first direction. The first direction can be parallel to the length of the cover plate 10. When the key module 100 is mounted on the side 1004 of the electronic device 1000, the first direction can be substantially parallel to the screen 200. It will be appreciated that, compared to the first direction being perpendicular to the screen 200, the arrangement direction of the first area 1 and the second area 2 in this embodiment is parallel to the screen 200, which reduces the thickness requirement for the electronic device 1000. The key module 100 can meet the thinning requirements of the electronic device 1000.

It is understood that the first region 1 and the second region 2 may be directly connected or spaced apart. For example, the cover plate 10 may further include a connecting region 3 connected between the first region 1 and the second region 2 (the first region 1, the second region 2, and the connecting region 3 are distinguished by dotted lines and fill patterns in FIG7 ).

For example, the first detection component 20 may be an optical heart rate detection module 21 or an electrocardiogram detection module. The second detection component 30 may be one or more of an ambient light sensor 31, a camera, a fingerprint detection module, an infrared transmitter, a distance sensor, and a body fat detection module.

It can be understood that by integrating the first detection component 20 and the second detection component 30 on the button module 100, the first detection component 20 can be used to detect the user's heart rate or electrocardiogram, which can reflect the physiological indicators of the user's physical health. The second detection component 30 is one or more of a camera, an ambient light sensor 31, a fingerprint detection module, an infrared emitter, a distance sensor and a body fat detection module. The number and category of the second components are selected according to needs and integrated into the button module 100, which can further increase the function of the button module 100 and is conducive to the multifunctionality of the button module 100.

Furthermore, through the combination of the first detection component 20 and the second detection component 30, the key module 100 can not only have the functions that can be achieved by using the first detection component 20 or the second detection component 30 alone, but the first detection component 20 and the second detection component 30 can also achieve the functions of multiple components in combination, which is conducive to the multifunctionality of the key module 100 and can improve the user experience. The following will specifically introduce several functions that can be achieved by combining the first detection component 20 and the second detection component 30 alone that cannot be achieved by the first detection component 20 or the second detection component 30 alone.

For example, the first region 1 may include an inner surface 1a and an outer surface 1b disposed opposite each other. It is understood that the inner surface 1a of the first region 1 is a portion of the bottom surface of the cover plate 10. The outer surface 1b of the first region 1 is a portion of the top surface 101 of the cover plate 10. The outer surface 1b of the first region 1 and the inner surface 1a of the first region 1 may be arranged sequentially from top to bottom along the Z-axis.

The second region 2 may include an inner surface 2a and an outer surface 2b disposed opposite each other. It is understood that the inner surface 2a of the second region 2 is a portion of the bottom surface of the cover plate 10. The outer surface 2b of the second region 2 is a portion of the top surface 101 of the cover plate 10. The outer surface 2b of the second region 2 and the inner surface 2a of the second region 2 may be arranged sequentially from top to bottom along the Z-axis.

Figure 4 is a schematic structural diagram of an embodiment of the key module 100 shown in Figure 3. Figure 5 is an exploded schematic diagram of an embodiment of the key module 100 shown in Figure 4. Figure 6 is a cross-sectional view of an embodiment of the key module 100 shown in Figure 4 taken along section line B-B. For example, the embodiment shown in Figure 5 illustrates that the first detection component 20 is an optical heart rate detection module 21, and the second detection component 30 is an ambient light sensor 31.

As shown in Figures 4 to 6, the optical heart rate detection module 21 may include a light emitter 211 and a light receiver 212. The light emitter 211 and the light receiver 212 are arranged at intervals in the first area 1. The light emitter 211 can be used to emit light. The light receiver 212 is used to receive light and convert the light signal into an electrical signal. It will be understood that the light emitter 211 and the light receiver 212 shown in Figures 5 and 6 are only schematic representations. In other embodiments, the positions of the light emitter 211 and the light receiver 212 can also be interchanged.

In some embodiments, the light emitter 211 may include one light source or multiple light sources. When the light emitter 211 includes multiple light sources, the wavelengths of light emitted by these light sources may be different from each other, or in other words, the wavelengths of these light sources are different from each other. Illustratively, the wavelengths of the multiple light sources may include near-infrared light, red light, blue light, yellow light, green light, etc.

For example, the light emitter 211 and the light receiver 212 can be spaced apart and arranged on one side of the inner surface 1a of the first region 1. The first region 1 is a light-transmitting region for transmitting light emitted by the light emitter 211, and the light receiver 212 for receiving light passing through the light-transmitting region.

It is understood that the outer surface 1 b of the first area 1 can be used as a contact surface when the user detects the heart rate signal. The first area 1 of the cover 10 can be used to protect the light emitter 211 and the light receiver 212.

Exemplarily, the optical heart rate detection module 21 can detect blood flow information. Among them, blood flow generally refers to the flow of blood in the blood vessels in the body. It is a basic parameter of the blood circulation system, reflecting the process of blood flowing through arteries, capillaries and veins under the action of the heart pumping blood. Blood flow can be characterized by a variety of parameters, including but not limited to speed, flow, direction, stability (whether the flow of blood in the circulatory system is stable), resistance (blood flow is affected by the resistance of the blood vessel wall), pulsatility (fluctuation of blood flow during heart beating), distribution (distribution of blood flow in the body), etc. By measuring and analyzing this blood flow information, the function of the heart and vascular system can be evaluated, cardiovascular diseases can be diagnosed, and effective treatment plans can be formulated.

Blood flow information is interrelated and mutually influential with other physiological characteristics such as heart rate, blood oxygen, and respiration. In physiological characteristic detection, comprehensive consideration of this information helps to more accurately understand the body's physiological state and health status.

As shown in Figure 6, the keypad module 100, by providing an optical heart rate detection module 21, can be used to measure a user's heart rate, blood oxygen, respiration, and other physiological health parameters. For example, when a user uses the keypad module 100 to measure their heart rate, the user can place their finger on the outer surface 1b of the first region 1, so that the user's finger covers the outer surface 1b of the first region 1. Light emitted by the light emitter 211 can then pass through the first region 1 and illuminate the user's finger. The light can then be reflected or scattered by the blood vessels in the user's finger, received by the light receiver 212 through the first region 1, and converted into an electrical signal through photoelectric conversion by the light receiver 212.

In some embodiments, the key module 100 may further include a light shielding structure 50, located between the light emitter 211 and the light receiver 212. The light shielding structure 50 can be used to block light emitted by the light emitter 211 from directly entering the light receiver 212 along a path below the top surface of the cover 10, thereby interfering with the light receiver 212's reception of light reflected or scattered by the user's tissue. In other words, the light shielding structure 50 can be used to ensure that as much light as possible is received by the light receiver 212 from light reflected or scattered by the user's tissue, thereby improving the detection accuracy of the optical heart rate detection module 21.

FIG. 7 is a schematic diagram of an embodiment of the cover plate shown in FIG. 6 at another angle.

In some embodiments, the first region 1 may include a first light-transmitting area 1c, a second light-transmitting area 1d, and a light-shielding area 1e, and the light-shielding area 1e may be located between the first light-transmitting area 1c and the second light-transmitting area 1d. The first light-transmitting area 1c may be disposed opposite the light emitter 211. The second light-transmitting area 1d may be disposed opposite the light receiver 212. The first light-transmitting area 1c may be used to project light emitted by the light emitter 211. The light receiver 212 may receive light from the outer side of the cover plate 10 that passes through the light-transmitting area. It is understood that the light-shielding area 1e may serve as the light-shielding structure 50 of the key module 100.

For example, the light-shielding area 1e can be made of a light-shielding material for shielding light, and the first light-transmitting area 1c and the second light-transmitting area 1d can be made of a light-transmitting material.

For example, the first light-transmitting region 1c, the second light-transmitting region 1d, and the light-shielding region 1e may be spaced apart from each other (as shown in Figures 6 and 7). The first light-transmitting region 1c, the second light-transmitting region 1d, and the light-shielding region 1e are connected by a connecting region 3. For ease of understanding, in Figure 7, dotted lines are used to distinguish the first light-transmitting region 1c, the second light-transmitting region 1d, the light-shielding region 1e, the second region 2, and the connecting region 3, and a fill pattern is used to fill the connecting region 3.

In some embodiments, the light-shielding region 1e can be an integrally formed structural component with other regions of the cover plate 10, that is, the light-shielding region 1e is integrally connected to other regions of the cover plate 10 and can be formed during the manufacturing process of the cover plate 10. In other embodiments, the light-shielding region 1e can be pre-manufactured (the light-shielding region 1e is an opaque component) and assembled with the first light-transmitting region 1c, the second light-transmitting region 1d, the second region 2, and the connecting region 3 through an assembly process to form the cover plate 10.

In other embodiments, the light-shielding area 1e may also be directly connected between the first light-transmitting area 1c and the second light-transmitting area 1d.

In other embodiments, the first region 1 may not be provided with the light-shielding area 1e, and may be entirely made of light-transmitting materials (as shown in FIG. 3 ).

As shown in Figure 6 , the key module 100 may further include a Fresnel film 40, which may be positioned between the light emitter 211 and the first region 1. The Fresnel film 40 can be used to shield other structures near the light emitter 211 from view from outside the cover 10, thereby enhancing the product's aesthetics. The Fresnel film 40 also allows light from the light emitter 211 to pass through, concentrating the light or reducing scattering, thereby enhancing the brightness of the light emitter 211.

6 and 7 , the ambient light sensor 31 may be disposed on the inner surface 2 a of the second region 2 . It is understood that the second region 2 of the cover 10 may be used to protect the ambient light sensor 31 .

In some embodiments, the ambient light sensor 31 can be used to detect the ultraviolet content in the ambient light. The second region 2 can be a light-transmitting region. In this way, the ambient light can pass through the second region 2 and be collected by the ambient light sensor 31. The ambient light sensor 31 can be used to generate an electrical signal based on the ultraviolet content in the ambient light.

In some embodiments, the ambient light sensor 31 may also be used to detect the intensity of ambient light, that is, the brightness of the ambient light. The ambient light sensor 31 may be used to generate an electrical signal according to the intensity of the ambient light.

It can be understood that when the button module 100 is installed on the side 1004 of the electronic device 1000 (as shown in Figure 1), the ambient light sensor 31 can be located on the side 1004 of the electronic device 1000. When the user wears the electronic device 1000, the ambient light sensor 31 can detect the light in the environment in which the electronic device 1000 is located in real time. Compared with the solution of installing the button module 100 on the back of the electronic device 1000, there is no need to remove the electronic device 1000 from the user, thereby simplifying the operation and improving the user experience.

It can be understood that the first detection component 20 and the second detection component 30 can be directly fixed to the cover plate 10, or the first detection component 20 and the second detection component 30 can also be indirectly fixed to the cover plate 10 through other structural parts, and the first detection component 20 and the second detection component 30 can be spaced apart from the cover plate 10.

By way of example, a method for fixing and connecting the optical heart rate detection module 21 , the ambient light sensor 31 and the cover 10 is described below.

As shown in Figures 5 and 6, the key module 100 may further include a bracket 60 and a circuit board 70. The bracket 60 may include a first surface 61 and a second surface 62, with the first surface 61 and the second surface 62 being disposed opposite each other. For example, the first surface 61 and the second surface 62 are disposed sequentially from top to bottom along the Z-axis.

The cover plate 10 can be mounted on the first surface 61 of the bracket 60, and the circuit board 70 can be mounted on the second surface 62 of the bracket 60. In other words, the cover plate 10, the bracket 60, and the circuit board 70 are arranged sequentially from top to bottom along the Z-axis. The first detection assembly 20 and the second detection assembly 30 can be disposed between the circuit board 70 and the cover plate 10. The first detection assembly 20 can be disposed opposite the first area 1, and the second detection assembly 30 can be disposed opposite the second area 2. The first detection assembly 20 and the second detection assembly 30 can be indirectly fixed to the cover plate 10 via the bracket 60 and the circuit board 70.

It is understood that by providing the bracket 60 and the circuit board 70, the cover 10 is disposed on the first side 61 of the bracket 60, and the circuit board 70 is disposed on the second side 62 of the bracket 60, with the first side 61 and the second side 62 disposed opposite each other. The bracket 60 can create a space between the cover 10 and the circuit board 70 for placing the optical heart rate detection module 21 and the ambient light sensor 31. It is understood that the cover 10, the bracket 60, and the circuit board 70 can be used to protect the components located in the space.

In some embodiments, the bracket 60 can be made of materials such as plastic, etc. In this way, the bracket 60 is light in weight and easy to process.

In some embodiments, the first detection component 20 and the second detection component 30 may be disposed on a circuit board 70 and electrically connected to the circuit board 70 .

FIG8 is a schematic assembly diagram of an embodiment of the light emitter 211 , the light receiver 212 , the ambient light sensor 31 , and the circuit board 70 shown in FIG6 .

As shown in Figures 6 and 8, the light emitter 211, the light receiver 212, and the ambient light sensor 31 can be fixed to the circuit board 70 at intervals and electrically connected to the circuit board 70. The bracket 60 is fixedly connected between the cover 10 and the circuit board 70. The light emitter 211, the light receiver 212, and the ambient light sensor 31 can be fixedly connected to the cover 10 via the bracket 60 and the circuit board 70.

In some embodiments, the circuit board 70 can also be used to transmit electrical signals. For example, the circuit board 70 can be a rigid printed circuit board (PCB) or a flexible printed circuit board (FPC).

In some embodiments, the circuit board 70 can be electrically connected to the mainboard (not shown). The light emitter 211, light receiver 212, and ambient light sensor 31 are electrically connected to the circuit board 70. When light receiver 212 receives light reflected from the user's finger, it converts the light signal into an electrical signal. When the ambient light sensor 31 receives ambient light, it converts the signal into an electrical signal based on the ambient light information. Both the electrical signals generated by the ambient light sensor 31 and the light receiver 212 can be transmitted to the mainboard via the circuit board 70.

Exemplarily, the button module 100 may further include a flexible circuit board 80 (different filling patterns are used to distinguish the circuit board 70 and the flexible circuit board 80 in FIG6 ). The flexible circuit board 80 can be used to transmit the signal on the circuit board 70 to the mainboard. In addition, the flexible circuit board 80 and the circuit board 70 can also be used to electrically connect the battery of the electronic device 1000 and the light emitter 211, the light receiver 212, and the ambient light sensor 31 to achieve power supply. Alternatively, the chip on the mainboard can also send instructions to the ambient light sensor 31 and/or the light emitter 211 through the flexible circuit board 80 and the circuit board 70 to detect ambient light and/or the user's heart rate signal.

In some embodiments, the flexible circuit board 80 and the circuit board 70 may be integrally formed structural components. For example, the flexible circuit board 80 and the circuit board 70 may be part of an integrally formed rigid-flex board. Alternatively, the flexible circuit board 80 and the circuit board 70 may be part of an integrally formed flexible circuit board 80. In other embodiments, the flexible circuit board 80 may also be electrically connected to the circuit board 70 by providing an electrical connector. The electrical connector may be a board-to-board connector (BTB) or a zero insertion force connector (ZIF).

As shown in FIG8 , the circuit board 70 may include a first portion 76 and a second portion 77 . The first portion 76 and the second portion 77 may be arranged at an angle. As shown in FIG8 , the first portion 76 and the second portion 77 define an angle A. The first detection assembly 20 may be fixed to the first portion 76 , and the second detection assembly 30 may be fixed to the second portion 77 . For example, the light emitter 211 and the light receiver 212 may be fixed to the first portion 76 , and the ambient light sensor 31 may be fixed to the second portion 77 .

It can be understood that when the side 1004 of the electronic device 1000 is a curved surface (as shown in Figure 1), the circuit board 70 is divided into a first part 76 and a second part 77 set at an angle. When the key module 100 is installed on the side 1004, the circuit board 70 can better match the shape of the side 1004, avoiding space waste of the electronic device 1000.

In some embodiments, the first portion 76 and the second portion 77 may be part of an integrally formed flexible circuit board. Alternatively, the first portion 76 and the second portion 77 may be part of an integrally formed rigid-flex circuit board. In other embodiments, the first portion 76 and the second portion 77 may be two separate circuit boards.

Fig. 9 is a schematic structural diagram of an embodiment of the bracket 60 shown in Fig. 5. Fig. 10 is a schematic structural diagram of the bracket 60 shown in Fig. 8 at another angle.

As shown in Figures 9 and 10 , the bracket 60 may include a side wall 63 and a baffle 64. In Figure 9 , the side wall 63 and the baffle 64 are schematically divided by a dotted line.

Illustratively, the sidewall 63 may include a top surface 631, a bottom surface 632, an inner side surface 633, and an outer side surface 634. The top surface 631 and the bottom surface 632 are disposed opposite each other. The inner side surface 633 and the outer side surface 634 are spaced apart, and the outer side surface 634 surrounds the inner side surface 633. The inner side surface 633 of the sidewall 63 may be connected between the top surface 631 of the sidewall 63 and the bottom surface 632 of the sidewall 63. The outer side surface 634 of the sidewall 63 may be connected between the top surface 631 of the sidewall 63 and the bottom surface 632 of the sidewall 63. It will be understood that the top surface 631 of the sidewall 63 may be part of the first surface 61 of the bracket 60. The bottom surface 632 of the sidewall 63 may be part of the second surface 62 of the bracket 60.

6 , 9 and 10 , the side wall 63 may be fixed between the cover plate 10 and the circuit board 70. For example, the top surface 631 of the side wall 63 may be fixedly connected to the bottom surface 102 of the cover plate 10, and the bottom surface 632 of the side wall 63 may be fixedly connected to the circuit board 70.

In some embodiments, the top surface 631 of the side wall 63 is a stepped surface. The cover plate 10 can be overlapped on the stepped surface. A portion of the stepped surface can be opposite to and spaced apart from the side surface 103 of the cover plate 10. In this way, the top surface 631 of the side wall 63 can serve as a positioning structure for the cover plate 10 when the cover plate 10 is installed on the bracket 60, limiting the position of the cover plate 10 relative to the bracket 60, which is conducive to quick installation and improves installation efficiency. In addition, a portion of the stepped surface can be opposite to and spaced apart from the side surface 103 of the cover plate 10, and glue can be applied between the stepped surface and the side surface of the cover plate 10 to achieve a fixed connection between the cover plate 10 and the side wall 63.

In some embodiments, the top surface 631 of the side wall 63 and the cover plate 10 may be fixedly connected by gluing or welding.

In some embodiments, the bottom surface 632 of the side wall 63 and the circuit board 70 can be fixedly connected by gluing or welding. For example, the bottom surface 632 of the side wall 63 and the circuit board 70 can be fixedly connected by waterproof glue.

Illustratively, the sidewall 63 may be annular, and the sidewall 63, the cover plate 10, and the circuit board 70 may enclose an accommodation space 109. The first detection assembly 20 and the second detection assembly 30 may be installed in the accommodation space 109. Illustratively, the inner side surface 633 of the sidewall 63, the cover plate 10, and the circuit board 70 may enclose the accommodation space 109.

The first detection assembly 20 and the second detection assembly 30 can be located in the accommodation space 109. For example, the light emitter 211, the light receiver 212, and the ambient light sensor 31 can be located in the accommodation space 109. It is understood that the cover 10, the bracket 60, and the circuit board 70 can protect the components located in the accommodation space 109.

For example, when the sidewall 63 is annular, the waterproof adhesive can be annular. It is understood that when the sidewall 63 is fixed to the circuit board 70 via the waterproof adhesive, the waterproof adhesive can seal the accommodating space 109. Furthermore, when the button module 100 is located in a humid environment or underwater, the waterproof adhesive can prevent moisture from entering the accommodating space 109 through the gap between the housing and the circuit board 70, thereby providing waterproof protection for components within the accommodating space 109 (e.g., the optical heart rate detection module 21/ambient light sensor 31, etc.).

In some embodiments, the baffle 64 may be connected to the inner side 633 of the sidewall 63. For example, the sidewall 63 may include a first sidewall 635 and a second sidewall 636. The first sidewall 635 and the second sidewall 636 may be spaced apart and disposed opposite each other. The baffle 64 may be connected between the first sidewall 635 and the second sidewall 636. The baffle 64 may be located between the cover plate 10 and the circuit board 70. In this manner, the baffle 64 may be used to divide the receiving space 109 into a plurality of subspaces.

It is understood that the surface of the first side wall 635 facing the accommodating space 109 may be a portion of the inner side surface 633 of the side wall 63, and the surface of the second side wall 636 facing the accommodating space 109 may be a portion of the inner side surface 633 of the side wall 63. The surface of the first side wall 635 facing away from the accommodating space 109 may be a portion of the outer side surface 634 of the side wall 63, and the surface of the second side wall 636 facing away from the accommodating space 109 may be a portion of the outer side surface 634 of the side wall 63.

In some embodiments, the first side wall 635 and the second side wall 636 may be arranged along the width direction (X-axis direction) of the key module 100 .

In some embodiments, the baffle 64 and the side wall 63 may be an integrally formed structural member. For example, the baffle 64 and the side wall 63 may be formed into an integrally formed structural member through a mold infusion process.

In other embodiments, the baffle 64 and the side wall 63 can be prepared separately and then assembled and connected by processes such as gluing or welding.

It is understandable that the number of the baffle 64 can be one or more. When the number of the baffle 64 is more than one, the baffles 64 can be arranged at intervals to divide the accommodating space 109 into two or more subspaces.

For example, the bracket 60 may include a baffle 64 that divides the accommodating space 109 into two subspaces. The first detection assembly 20 and the second detection assembly 30 may be located in the two subspaces, respectively. For ease of understanding, the subspace where the first detection assembly 20 is located is referred to as the first space 1091, and the subspace where the second detection assembly 30 is located is referred to as the second space 1092.

For example, the baffle 64 may also cover the plate 10 and the circuit board 70. The baffle 64, a portion of the sidewall 63, the first region 1, and the circuit board 70 define a first space 1091. The baffle 64, another portion of the sidewall 63, the second region 2, and the circuit board 70 define a second space 1092. The first detection assembly 20 is disposed in the first space 1091, and the second detection assembly 30 is disposed in the second space 1092.

For example, the optical heart rate detection module 21 may be located in the first space 1091 , and the ambient light sensor 31 may be located in the second space 1092 .

It is understood that the baffle 64 divides the accommodating space 109 into a first space 1091 and a second space 1092. The first detection assembly 20 is disposed on the circuit board of the first space 1091, and the second detection assembly 30 is disposed on the second space 1092. Thus, if water enters one of the first space 1091 and the second space 1092, causing a device failure, the baffle 64 can prevent the water vapor from spreading to the other space. The devices in the other space can still be protected, and the key module 100 can still retain some functionality.

In some embodiments, the bracket 60 may further include a light shielding plate 65. The light shielding plate 65 may be connected to the inner side surface 633 of the side wall 63, the bottom surface 102 of the cover plate 10, and the circuit board 70. The light shielding plate 65 may be arranged between the light emitter 211 and the light receiver 212 of the optical heart rate detection module 21. The light shielding plate 65 is made of a light-shielding material. In this way, the light shielding plate 65 may serve as a light-shielding structure 50 between the light emitter 211 and the light shield, and may be used to block the light emitted by the light emitter 211 from directly entering the light receiver 212 in the accommodating space 109, thereby interfering with the light receiver 212 receiving light reflected or scattered by the user's tissue.

As shown in FIG6 , the first region 1 of the cover plate 10 includes a light shielding region 1e, and the bracket 60 may include a light shielding plate 65. The light shielding plate 65 of the bracket 60 may be disposed opposite the light shielding region 1e of the first region 1. In this case, the light shielding region 1e and the light shielding plate 65 may together form a light shielding structure 50.

In other embodiments, a portion of the second detection assembly 30 may be located between the light emitter 211 and the light receiver 212 to provide light shielding. For example, if the distance between the light emitter 211 and the light receiver 212 is 2 mm along the length of the key module 100, components smaller than 2 mm in the second detection assembly 30 may be located between the light emitter 211 and the light receiver 212.

In other embodiments, when the bracket 60 is a columnar or plate-shaped structure, the space for accommodating the optical heart rate detection module 21 and the ambient light sensor 31 can be open space. When the key module 100 is installed in the housing 300, the cover 10, the bracket 60, the circuit board 70 and the housing 300 can enclose a receiving space 109.

It is understood that the above embodiments describe that the first detection assembly 20 and the second detection assembly 30 are indirectly disposed on the cover plate via the circuit board 70 and the bracket 60. In other embodiments, the first detection assembly 20 and the second detection assembly 30 may also be directly disposed on the inner side of the cover plate 10 by gluing or other methods.

As shown in Figures 5 and 6, the key module 100 may further include a light-transmitting member 90, which may be used to fill the accommodation space 109. The light-transmitting member 90 connects the first detection component 20, the second detection component 30, and the circuit board 70. For example, the light-transmitting member 90 may fill the accommodation space 109. The light-transmitting member 90 may connect the light emitter 211, the light receiver 212, and the ambient light sensor 31.

In some embodiments, the light-transmitting member 90 can be made of a translucent material, such as transparent glue or transparent plastic. This ensures that the light-transmitting member 90 does not interfere with light transmission when it is placed in the receiving space 109. For example, light emitted by the light emitter 211 can pass through the light-transmitting member 90 and the first region 1 to the exterior of the cover 10. The light receiver 212 can receive light transmitted through the first region 1 and the light-transmitting member 90. The ambient light sensor 31 can receive light transmitted through the second region 2 and the light-transmitting member 90.

As shown in FIG6 , the light emitter 211 may include a top surface 1111, a bottom surface 1112, and a side surface 1113. The side surface 1113 of the light emitter 211 is connected between the top surface 1111 of the light emitter 211 and the bottom surface 1112 of the light emitter 211. The bottom surface 1112 of the light emitter 211 may be fixedly connected to the circuit board 70. When the light-transmitting member 90 is filled in the accommodating space 109, the light-transmitting member 90 may connect the side surface 1113 of the light emitter 211, the top surface 1111 of the light emitter 211, and the circuit board 70. In this way, the light-transmitting member 90 may cover the light emitter 211, protect the light emitter 211, and provide a waterproof effect for the light emitter 211. The connection relationship between the light-transmitting member 90 and the light receiver 212 and the ambient light sensor 31 can refer to the connection relationship between the light-transmitting member 90 and the light emitter 211, so that the light-transmitting member 90 can be used to protect the light receiver 212 and the ambient light sensor 31, and can play a waterproof role for the light receiver 212 and the ambient light sensor 31.

It is understood that the provision of the light-transmitting member 90 can protect the light receiver 212, the light emitter 211, and the ambient light sensor 31 from dust and water. Furthermore, the light-transmitting member 90 can also assist the bracket 60 in supporting the space between the cover 10 and the circuit board 70, thereby preventing collapse and damage to the light receiver 212, the light emitter 211, and the ambient light sensor 31.

In some embodiments, the cover plate 10, the light-transmitting member 90, and the bracket 60 can be an integrally formed structural member. This provides for improved connection strength among the cover plate 10, the light-transmitting member 90, and the bracket 60. It should be noted that the use of an integral molding process to form an integrated structural member means that during the formation of one of the two components, the component is immediately connected to the other component, without the need for further processing (such as bonding, welding, snap-fit connection, or screw connection) to connect the two components together.

In some embodiments, the light-transmitting member 90 can be formed by curing transparent glue. For example, when the light-transmitting member 90 is glue, it can be used to form a fixed connection structure between the cover plate 10 and the bracket 60, so that no additional fixing structure is required between the cover plate 10 and the bracket 60, simplifying the assembly process.

As shown in Figures 6 and 8, the circuit board 70 can be provided with a first through hole 71 and a second through hole 72 that are spaced apart. The first through hole 71 and the second through hole 72 can both connect the accommodating space 109 and the outside world. The light emitter 211 can be spaced apart from the first through hole 71 and the second through hole 72. The light receiver 212 can be spaced apart from the first through hole 71 and the second through hole 72. The ambient light sensor 31 can be spaced apart from the first through hole 71 and the second through hole 72. When the light-transmitting member 90 can be formed by a glue pouring process, one of the first through hole 71 and the second through hole 72 can be used as a glue pouring hole, and the other can be used as a glue outlet hole.

Exemplarily, the light emitter 211 and the light receiver 212 may be located between the first through hole 71 and the second through hole 72 .

Exemplarily, the assembly steps of the button module 100 may include: first, securing the optical heart rate detection module 21 and the ambient light sensor 31 to the circuit board 70; then, pre-securing the bracket 60 to the circuit board 70 using waterproof adhesive; and securing the cover 10 to the side of the bracket 60 away from the circuit board 70 using a fixture. The circuit board 70, the cover 10, and the sidewall 63 of the bracket 60 enclose a receiving space 109. The circuit board 70 may be provided with a first through hole 71 and a second through hole 72 spaced apart, each of which connects the receiving space 109 to the outside world. Glue is poured into the receiving space 109 through the first through hole 71/the second through hole 72, and the glue solidifies to form the light-transmitting member 90. The light-transmitting member 90 can simultaneously contact and connect the bracket 60, the cover 10, the optical heart rate detection module 21 (including the light receiver 212 and the light emitter 211), the ambient light sensor 31, and the circuit board 70, forming an integrally formed structure of the bracket 60, the cover 10, the light-transmitting member 90, the optical heart rate detection module 21 (including the light receiver 212 and the light emitter 211), the ambient light sensor 31, and the circuit board 70. In this case, the light-transmitting member 90 can also be used to strengthen the connection strength between the circuit board 70 and the housing.

In other embodiments, the baffle 64 of the bracket 60 can separate the accommodating space 109 into an independent first space 1091 and a second space 1092. In this way, when water enters one of the first space 1091 and the second space 1092, the operation of the components in the other space will not be disturbed.

When the light-transmitting component 90 is assembled with the bracket 60, the cover plate 10, and the circuit board 70 through the jig glue-filling process, the first space 1091 and the second space 1092 can be glue-filled separately. For example, the first through hole 71 and the second through hole 72 can be located on both sides of the baffle 64, respectively. The first through hole 71 can connect the outside world and the first space 1091. The second through hole 72 can connect the outside world and the second space 1092. The first through hole 71 and the second through hole 72 can both serve as glue-filling holes. The light-transmitting component 90 fills the first space 1091 through the first through hole 71 through the vacuum glue-filling process, and the light-transmitting component 90 fills the second space 1092 through the second through hole 72 through the vacuum glue-filling process. In other embodiments, more through holes can also be provided on the circuit board 70 to enable glue injection and outflow during the glue-filling process. This application is not limited thereto.

In other embodiments, the light-transmitting member 90 may be first formed by processing and then fixed to the bracket 60 and the cover 10 by gluing, clamping or welding. At this time, welding or gluing is further performed to fix the cover 10 to the bracket 60.

In some embodiments, the transmittance of the light-transmitting element 90 can be greater than 90%. In this way, the light-transmitting element 90 has a smaller light-blocking effect. When the light emitter 211 emits light and the light receiver 212 and the ambient light sensor 31 receive light through the light-transmitting element 90, light loss is small, and the measurement accuracy of the optical heart rate detection module 21 and the ambient light sensor 31 is higher.

The above describes several structures of the key module 100 . The following describes an implementation method of signal transmission between the key module 100 and the mainboard of the electronic device 1000 .

As shown in FIG3 , the housing 300 may be provided with a mounting hole 301. The key module 100 may be electrically connected to a mainboard (not shown) disposed inside the housing 300 through the mounting hole 301. For example, when the key module 100 is mounted on the middle frame 310, the mounting hole 301 may be located on the middle frame 310.

For example, the flexible circuit board 80 can be located outside the accommodation space 109. The flexible circuit board 80 can be connected to the circuit board 70 and electrically connected to the circuit board 70. For example, when the key module 100 is installed in the middle frame 310, a portion of the flexible circuit board 80 can be located in the internal space 1003 for connection to the mainboard, a portion can be located in the mounting hole 301, and another portion can be located outside the middle frame 310 for electrical connection to the circuit board 70. The circuit board 70 can be electrically connected to the mainboard via the flexible circuit board 80.

As shown in Figures 3 and 6 , the user's heart rate signal collection path may include: light emitted by the light emitter 211 can pass through the light-transmitting member 90, then through the first region 1 of the cover 10, and onto the user's finger. The light can then be reflected or scattered by the blood vessels in the user's finger, return to the receiving space 109 through the first region 1 of the cover 10, and pass through the light-transmitting member 90 to be received by the light receiver 212. After the light receiver 212 of the optical heart rate detection module 21 collects the optical signal reflected from the user's skin, it converts the optical signal into an electrical signal, which is then transmitted to the main board of the electronic device 1000 via the circuit board 70 and the flexible circuit board 80.

For example, electronic device 1000 may include a PPG chip (not shown), which may be fixed to and electrically connected to a mainboard. The PPG chip may be electrically connected to optical receiver 212 via the mainboard and circuit board 70. The PPG chip may be used to process electrical signals collected by optical receiver 212 to obtain a user's photoplethysmography (PPG) signal.

In other embodiments, the electronic device 1000 may further 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 signal converted by the optical receiver 212 to obtain the user's heart rate information.

For example, the ambient light collection path may include: external light can pass through the second area 2 of the cover 10, enter the receiving space 109, pass through the light-transmitting member 90, and be received by the ambient light sensor 31. The ambient light sensor 31 converts the collected light signal into an electrical signal, which is then transmitted to the main board of the electronic device 1000 through the circuit board 70 and the flexible circuit board 80.

For example, the electronic device 1000 may further include a chip for processing electrical signals converted from ambient light (hereinafter referred to as the ambient light chip). The ambient light chip may be fixed to the mainboard and electrically connected to the mainboard. The ambient light chip may be electrically connected to the ambient light sensor 31 via the mainboard and the circuit board 70. The ambient light chip may be used to process the electrical signals from the ambient light sensor 31, thereby obtaining light-related parameter information of the external environment in which the key module 100 is located, such as the ultraviolet content or light intensity in the ambient light.

It is understandable that by setting up an ambient light sensor 31, the ultraviolet content in the environment where the button module 100 is located can be detected in real time, and the ambient light chip can provide protective advice to the user when traveling. The ambient light chip can also be electrically connected to the screen 200 of the electronic device 1000. When the ambient light sensor 31 detects that the ambient light intensity (brightness) is large, the ambient light chip can be used to increase the brightness of the screen 200 accordingly so that the user can clearly see the text and patterns on the screen 200; when the ambient light intensity (brightness) is detected to be small, the ambient light chip can be used to decrease the brightness of the screen 200 accordingly so that the user can clearly see the text and patterns displayed on the screen 200, while saving energy consumption of the screen 200. The ambient light chip can also count the sunshine time of a day based on the ambient light monitored by the ambient light sensor 31.

A specific implementation of installing the button module 100 on the electronic device 1000 will be described below.

As shown in Figures 2 and 3, the housing 300 of the electronic device 1000 may be provided with a mounting slot 302. The opening of the mounting slot 302 may be located on a side surface 1004 of the electronic device 1000. The key module 100 may be mounted in the mounting slot 302. For example, when the key module 100 may be mounted on the middle frame 310, the mounting slot 302 may be located on the middle frame 310.

Exemplarily, the wall surface of the mounting groove 302 may be provided with a stop structure 3109. The stop structure 3109 may be in the form of a snap. One end of the bracket 60 may also have a connecting structure 69 (as shown in FIG10 ). The connecting structure 69 may be in the form of a snap. When the key module 100 is mounted on the electronic device 1000, the stop structure 3109 may be located on the outside of the connecting structure 69 of the bracket 60. In other words, the stop structure 3109 may be located on the side of the connecting structure 69 away from the internal space 1003 of the electronic device 1000. In this way, the stop structure 3109 and the connecting structure 69 cooperate with each other to prevent the key module 100 from falling off toward the outside of the electronic device 1000.

For example, there may be two connecting structures 69, which are arranged along the length direction of the bracket 60 and are respectively connected to both ends of the bracket 60. There may also be two stopper structures 3109.

Fig. 11 is a partial cross-sectional view of an embodiment of the electronic device 1000 shown in Fig. 1 at the section line C-C. Fig. 11 is intended to illustrate the installation of the key module 100 shown in Fig. 5 on the electronic device 1000.

As shown in Figures 5 and 11, the key module 100 may further include a pressure sensing circuit 98 and a pressure sensing component 99. The pressure sensing component 99 may be disposed on the inner side of the cover plate 10, and the pressure sensing circuit 98 is fixed to the pressure sensing component 99. When the cover plate 10 is subjected to pressure and the pressure sensing component 99 deforms, the pressure sensing circuit 98 is used to detect the deformation of the pressure sensing component 99.

Exemplarily, the resistance value of the pressure sensing circuit 98 can change according to the degree of deformation of the pressure sensing component 99. The electronic device 1000 can be provided with a pressure sensing chip (not shown). Exemplarily, the pressure sensing chip can be installed on the mainboard and electrically connected to the mainboard. The pressure sensing chip can be electrically connected to the pressure sensing circuit 98. The electronic device 1000 can provide a current with a fixed voltage value to the pressure sensing circuit 98. When the resistance value of the pressure sensing circuit 98 changes, the current on the pressure sensing circuit 98 will also change accordingly. The pressure sensing chip can judge the strength of the user's pressing on the shell based on the magnitude of the current.

For example, when a user measures an electrocardiogram (ECG) signal or a heart rate signal, the user places a finger on the cover plate 10. The pressure sensing component 99 may deform to varying degrees depending on the force acting between the user's finger and the cover plate 10. The pressure sensing circuit 98 may be used to detect the deformation of the pressure sensing component 99. Thus, the force exerted by the user's finger pressing the cover plate 10 can be determined by the degree of deformation of the pressure sensing component 99 detected by the pressure sensing circuit 98.

In some embodiments, when the force between the user's finger and the cover plate 10 is low, the depth of penetration of the light emitted by the light emitter 211 into the tissue beneath the user's skin is limited, and the user's blood vessels are located 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 of the finger and the cover plate 10, and the deeper the light emitted by the light emitter 211 penetrates the user's skin. Therefore, when the key module 100 is used to measure PPG signals, a first 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 first threshold value, the light emitted by the light emitter 211 penetrates the user's skin to a greater depth, allowing most of the light to illuminate the location of the blood vessels beneath the user's skin. When the pressure sensing chip detects that the real-time force detected by the pressure sensing component 99 is greater than or equal to the first threshold value, the pressure sensing chip controls the key module 100 to begin collecting the user's PPG signal, thereby improving the accuracy of the collected PPG signal.

In some embodiments, the pressure sensing circuit 98 and the pressure sensing component 99 cooperate to implement the key function of the key module 100. For example, when the electronic device 1000 is not in the health detection state, when the pressure sensing chip monitors that the real-time force detected by the pressure sensing component 99 is greater than or equal to the second threshold value, that is, when the force applied by the user to press the cover plate 10 is greater than or equal to the second threshold value, it is determined that the user is using the key function of the key module 100.

In some implementations, the second threshold value may be greater than the first threshold value.

In some embodiments, the electronic device 1000 may further include a motor (not shown). The motor may be mounted on the housing 300. For example, the motor may be disposed in the internal space 1003 of the electronic device 1000, and the key module 100 may be electrically connected to the motor.

In some embodiments, the motor can be mounted on the back cover 320 (as shown in FIG1 ). It is understood that when the 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 better felt by the user through the back cover 320 .

The motor can be used to vibrate according to the data detected by the key module 100. Several implementations of the motor vibrating according to the data monitored by the key module 100 will be described below.

In some embodiments, when the button module 100 is used as a touch button of the electronic device 1000, the motor can vibrate to prompt the user whether the operation of the button is valid.

In some embodiments, the pressure sensing circuit 98 can be electrically connected to the motor of the electronic device 1000. When the user presses the cover 10 and the pressure sensing circuit 98 detects that the pressure sensing component 99 is deformed, the motor can vibrate. The pressure sensing circuit 98 and the pressure sensing component 99 can cooperate with the motor to realize the virtual key function of the key module 100. For example, the whole machine algorithm sets a corresponding threshold. When the user presses the cover 10 with a finger, the resistance of the pressure sensing circuit 98 changes, generating an electrical signal, which is calculated by the pressure sensing chip inside the whole machine. The pressure sensing chip can be electrically connected to the motor to control the motor to generate vibration, thereby achieving a function similar to a touch button.

In some embodiments, when the button module 100 collects the user's health parameters, when the collection of the electrocardiogram signal or the heart rate signal is completed, the motor can vibrate to indicate that the detection is complete.

Exemplarily, the pressure sensing component 99 may include a button rod 991 and a supporting steel sheet 992. The button rod 991 may include a first surface 9911 and a second surface 9912. The first surface 9911 of the button rod 991 and the second surface 9912 of the button rod 991 are arranged opposite to each other. The first surface 9911 of the button rod 991 is fixed to the side of the circuit board 70 facing away from the cover plate 10. The supporting steel sheet 992 is connected to the second surface 9912 of the button rod 991, and the pressure sensing circuit 98 is fixed to the side of the supporting steel sheet 992 away from the button rod 991. When the cover plate 10 is subjected to pressure, the supporting steel sheet 992 may undergo elastic deformation, and the pressure sensing circuit 98 can be used to detect the deformation of the supporting steel sheet 992.

In other words, the cover plate 10 , the circuit board 70 , the button rod 991 and the supporting steel sheet 992 may be arranged in sequence from top to bottom along the Z-axis direction.

It is understandable that the distance between the pressure sensing circuit 98 and the circuit board 70 is relatively far. When the pressure sensing circuit 98 fails, the pressure sensing circuit 98 can be repaired alone without affecting the optical heart rate detection module 21, making maintenance more convenient.

In some embodiments, when the key module 100 is installed in the middle frame 310, a portion of the key rod 991 is located in the internal space 1003 of the electronic device 1000, and the other portion is exposed from the middle frame 310. The supporting steel sheet 992 and the pressure sensing circuit 98 can be installed in the internal space 1003 of the electronic device 1000. In this way, the supporting steel sheet 992 and the pressure sensing circuit 98 can be installed in the internal space 1003 of the electronic device 1000. When the electronic device 1000 falls or is hit by a large external force, the middle frame 310 can protect the pressure sensing circuit 98 and the supporting steel sheet 992, thereby improving the reliability of the electronic device 1000. In addition, the key module 100 does not need to be equipped with an additional waterproof structure to waterproof the pressure sensing circuit 98.

In some embodiments, the pressure sensing component 99 may further include an elastic member 993, which abuts between the button rod 991 and the supporting steel sheet 992, and the elastic member 993 is elastic. It is understandable that by providing the elastic member 993, the structural tolerances of the button rod 991 and the supporting steel sheet 992 can be absorbed, and the assembly tolerances between the button rod 991 and the supporting steel sheet 992 can also be absorbed, thereby avoiding excessive holding force between the button rod 991 and the supporting steel sheet 992, resulting in a large deformation of the supporting steel sheet 992, reducing the pressure sensing detection accuracy or causing the pressure sensing detection to fail. In addition, when the button module 100 is used as a button, when the user presses the button module 100, the elastic member 993 can play a buffering role, and the elastic member 993 can also improve the feel of use.

In some embodiments, the pressure sensing component 99 may further include a waterproof ring 994, which is sleeved on the button rod 991. When the button module 100 is fixed to the housing 300 of the electronic device 1000, the housing 300 may be provided with a fixing hole 303, and a portion of the button rod 991 is located in the fixing hole 303. At this time, the waterproof ring 994 may abut between the button rod 991 and the wall surface of the fixing hole 303. It is understandable that by providing the waterproof ring 994, it is possible to reduce the amount of external water vapor or dust that enters the internal space 1003 of the electronic device 1000 through the gap between the button rod 991 and the fixing hole 303, thereby preventing the device (such as the motherboard) in the internal space 1003 of the electronic device 1000 from interfering with the operation of the components (such as the motherboard) in the internal space 1003 of the electronic device 1000.

For example, when the button module 100 is mounted on the middle frame 310 , the fixing hole 303 may be located on the middle frame 310 . The fixing hole 303 may be connected to the mounting groove 302 .

In some embodiments, the waterproof ring 994 can be made of elastic materials such as silicone or rubber.

In some embodiments, the pressure sensing assembly 99 may further include a retaining spring 995. The button stem 991 may be provided with a retaining groove 9913. The retaining groove 9913 may open on a side of the button stem 991. When the button module 100 is mounted in the housing 300, the retaining groove 9913 may open in the interior space 1003 of the electronic device 1000. Part of the retaining spring 995 may be fixed within the retaining groove 9913, while part of the retaining spring 995 may extend out of the retaining groove 9913. In this way, the retaining spring 995 can prevent the button module 100 from loosening outside the electronic device 1000.

In some embodiments, the key module 100 may further include a retaining ring 996. The retaining ring 996 may be fixed to the key rod 991. When the key module 100 is mounted on the housing 300, the retaining ring 996 may abut against the housing 300. The retaining ring 996 and the retaining spring 995 may work together to retain the key rod 991 on the housing 300, thereby preventing the key rod 991 from detaching from the housing 300. For example, when the key module 100 is mounted on the middle frame 310, the retaining ring 996 may abut against the middle frame 310.

It is understood that the key module 100 of the present application can be installed as a standalone product on the housing 300 of the electronic device 1000. During installation of the key module 100 to the housing 300, the flexible printed circuit board 80 of the key module 100 can enter the internal space 1003 of the electronic device 1000 through the mounting hole 301. The housing 300 can be provided with a fixing hole 303, and the key rod 991 can be partially located in the fixing hole 303. The pressure sensing component 99 can be restrained relative to the housing 300 by a waterproof ring 994, a retaining ring 995, and a retaining ring 996. The waterproof ring 994 can be used to prevent external moisture or dust from entering the internal space 1003 of the electronic device 1000 through the gap between the key rod 991 and the fixing hole 303. A sealing member 305 is placed in the mounting hole 301. The sealing member 305 can seal the gap between the flexible printed circuit board 80 and the mounting hole 301, preventing moisture or dust from entering the internal space 1003 of the electronic device 1000 through the mounting hole 301. In this way, the assembly seal between the key module 100 and the housing 300 is completed. The overall waterproof function of the electronic device 1000 is better. In some embodiments, the electronic device 1000 can achieve a waterproof level of 5ATM.

In some embodiments, a curable waterproof adhesive may be used to wrap the portion of the key module 100 located outside the housing 300 to achieve waterproofing.

In some embodiments, the seal 305 can be formed by applying and curing waterproof glue within the mounting hole 301. It is understood that, compared to a seal 305 made of an elastic material such as a rubber plug, the waterproof glue is fluid before curing, can fill smaller gaps, and can better adapt to the shape of the gap between the mounting hole 301 and the flexible circuit board 80, thereby better sealing the gap between the mounting hole 301 and the flexible circuit board 80.

In some embodiments, the technical content of the key module 100 that is the same as that of the previous embodiments is not repeated. FIG12 is an exploded schematic diagram of another embodiment of the key module 100 shown in FIG4 . FIG13 is a structural schematic diagram of an embodiment of the key module 100 shown in FIG4 at section line D-D . FIG14 is a partial structural schematic diagram of another embodiment of the key module shown in FIG4 at another angle.

In some embodiments, the key module 100 may further include a third detection component, and the cover plate 10 may further include a third area 4 for arranging the third detection component. The third detection component is different from the second detection component 30. It is understood that the key module 100 may further include more detection components, allowing the key module 100 to have more functions, thereby facilitating the multifunctionality of the key module 100.

Exemplarily, the first detection component 20 is an optical heart rate detection module 21, and the third detection component can be an electrocardiogram detection module 22. The electrocardiogram detection module 22 can include a first electrode 221, which can be at least partially disposed on the outer surface 4b of the third region 4. The outer surface 4b of the third region 4 can be a portion of the top surface 101 of the cover 10. In Figure 14, dotted lines schematically distinguish the first light-transmitting area 1c, the second light-transmitting area 1d, the light-shielding area 1e, the second region 2, the connection region 3, and the third region 4, and a fill pattern is used to schematically represent the first electrode 221 and the connection region 3.

For example, the first electrode 221 may be partially disposed on the top surface 101 of the cover plate 10, partially disposed on the side surface 103 of the cover plate 10, and partially disposed on the bottom surface 102 of the cover plate 10. The first electrode 221 may be electrically connected to the circuit board 70. When a user performs an electrocardiogram (ECG) test, the user's finger may touch the portion of the first electrode 221 disposed on the top surface 101 of the cover plate 10. The user's electrical signal may be transmitted sequentially through the first electrode 221, the circuit board 70, and the flexible circuit board 80 to the main board of the electronic device 1000.

It is understood that the first detection component 20 is configured as an optical heart rate detection module 21, and the third detection component is configured as an electrocardiogram detection module 22. When the user's finger touches the top surface of the cover 10, the key module 100 can simultaneously measure the user's electrocardiogram signal and heart rate signal (e.g., PPG signal).

In some embodiments, the PPG signal (a type of heart rate signal) can be combined with the ECG waveform to obtain more accurate blood pressure and other biometric information related to the human cardiovascular system through an algorithm. For example, the key module 100 can simultaneously collect the user's ECG waveform and PPG signal, calculate the time difference (PPT) between the two through an algorithm, and then convert the difference using a formula to obtain the user's blood pressure data.

It is understandable that the first detection component 20 and the third detection component may overlap in the thickness direction of the key module 100. In this way, the device arrangement of the key module 100 is more compact, which is conducive to setting more functional devices in a smaller volume of the key module 100.

For example, the third area 4 may be arranged around the first area 1 .

In some embodiments, the first electrode 221 can be formed using a physical vapor deposition (PVD) process. This allows the first electrode 221 to have high hardness, wear resistance, and corrosion resistance. In other embodiments, the first electrode 221 can be coated with diamond-like carbon, for even higher hardness.

In some embodiments, the first electrode 221 may be made of chromium or a chromium alloy.

In other embodiments, when the material of the first electrode 221 can also be a transparent conductive material such as indium tin oxide (ITO), a portion of the first electrode 221 can also be fixed to the outer surface 1b of the first region 1.

As shown in FIG13 , when the key module 100 includes a bracket 60 and a circuit board 70, the ECG detection module 22 may further include a conductive member 222, which may be disposed between the cover plate 10 and the circuit board 70. The conductive member 222 may electrically connect the first electrode 221 and the circuit board 70 to transmit the electrical signal collected by the first electrode 221 to the circuit board 70. For example, the conductive member 222 may be located in the accommodation space 109.

It can be understood that when the button module 100 can also include a conductive part 222, the user's electrocardiogram signal collection path can include: the user's electrical signal can be transmitted to the main board of the electronic device 1000 through the first electrode 221, the conductive part 222, the circuit board 70, and the flexible circuit board 80 in sequence.

In some embodiments, the conductive member 222 may be made of conductive silicone, a conductive spring, a conductive spring, a conductive wire, or the like.

In other embodiments, the cover plate 10 includes a conductive portion (not shown) made of a conductive material, the conductive portion is exposed from the cover plate 10, and the conductive portion is electrically connected to the first electrode 221 of the electrocardiogram detection module 22. The conductive portion can be electrically connected to the circuit board 70. The user's electrical signal can be transmitted to the main board of the electronic device 1000 through the first electrode 221, the conductive portion, the conductive member 222, the circuit board 70, and the flexible circuit board 80 in sequence. In this way, the first electrode 221 can be entirely provided on the top surface of the cover plate 10, and does not need to be connected to the bottom surface of the cover plate 10 through the side surface of the cover plate 10. The molding difficulty of the first electrode 221 is relatively small.

For example, the electronic device 1000 may include an electrocardiography (ECG) chip (not shown). The ECG chip may be located in the interior space 1003 of the housing 300. For example, the ECG chip may be fixed to the mainboard and electrically connected to the mainboard. The ECG chip may be electrically connected to the conductive portion of the housing via the mainboard, the flexible printed circuit board 80, and the printed circuit board 70. The ECG chip may be used to process the electrical signals obtained by the housing to obtain an electrocardiogram waveform of the user.

In other embodiments, the electronic device 1000 may further include an ECG chip for processing other types of ECG signals in addition to ECG. The ECG chip may be used to process the electrical signals collected by the conductive portion to obtain ECG information of the user.

In some embodiments, when the second detection component 30 is disposed on the inner surface 2a of the second region 2, the first electrode 221 may also be partially disposed on the outer surface 2b of the second region 2. In this way, the area of the first electrode 221 can be larger, and when the user touches the top surface 101 of the cover 10, the electrical connection area between the first electrode 221 and the user can also be larger, which is beneficial to the stability of the electrical connection between the user and the first electrode 221.

In other embodiments, when the first detection component 20 is an electrocardiogram detection module 22, the third detection component can be configured as an optical heart rate detection module 21. This application does not impose any limitations. The key module 100 can integrate more modules for measuring physiological parameters. For example, when the first detection component 20 is an electrocardiogram detection module 22, the first electrode 221 can be at least partially disposed on the outer surface 1b of the first region 1 (not shown).

It is understood that when the first detection component 20 is an electrocardiogram detection module 22, the first area 1 may not be set as a light-transmitting area. In other words, the material, color, and light transmittance of the first area 1 are not limited and can be selected according to needs. For example, the first area 1 can be made of an opaque metal material, and the color of the first area 1 can be consistent with the color of the middle frame 310. When the button module 100 is installed on the middle frame 310, the outer surface 3101 of the middle frame 310 can have good appearance consistency.

In some embodiments, the same technical contents as those of the key module 100 in the above embodiments are not described in detail. Fig. 15 is a partial structural diagram of another embodiment of the key module 100 shown in Fig. 4 at another angle.

As shown in FIG15 , the button module may include a first detection component 20 , a second detection component 30 , and a third detection component. The first detection component 20 is an optical heart rate detection module 21 , the second detection component 30 is a body fat detection module, and the third detection component may be an electrocardiogram detection module 22 .

As shown in Figures 3 and 15 , the body fat detection module may include a second electrode 361, which may be at least partially disposed on the outer surface 2b of the second region 2. When a user needs to measure body fat, they place their finger on the outer surface 2b of the second region 2, contacting the second electrode 361, which can then collect the user's electrical signal.

For example, the second electrode 361 may be partially disposed on the top surface 101 of the cover plate 10, partially disposed on the side surface 103 of the cover plate 10, and partially disposed on the bottom surface 102 of the cover plate 10. The electrical connection between the second electrode 361 and the motherboard of the electronic device 1000 can refer to the electrical connection between the first electrode 221 and the motherboard, and will not be repeated here.

The number of second electrodes 361 can be one or two. For example, when the first detection component 20 is an electrocardiogram detection module 22, the number of second electrodes 361 of the body fat detection module can be one, and the first electrode 221 of the electrocardiogram detection module 22 can also participate in body fat detection as an electrode for body fat detection. That is, the electrocardiogram detection module 22 and the body fat detection module can share the first electrode 221. In this way, one less electrode for body fat detection can be provided, which reduces the area requirement of the cover plate 10, helps reduce the area of the cover plate 10, and helps miniaturize the key module 100.

In some embodiments, an insulating structure 19 made of an insulating material is disposed between the first electrode 221 and the second electrode 361 to insulate the first electrode 221 from the second electrode 361. In some embodiments, when there are two second electrodes 361, the two second electrodes 361 are insulated from each other. For ease of understanding, FIG15 illustrates the first electrode 221, the second electrode 361, and the insulating structure 19 using different fill patterns.

In other embodiments, when the first detection component 20 is an optical heart rate module, the number of the second electrodes 361 is two, and the two electrodes are in contact with the user to collect the user's electrical signals.

Exemplarily, the electronic device 1000 may further include a chip for processing the electrical signals collected by the body fat detection module (hereinafter referred to as the body fat chip). The body fat chip may be fixed on the main board and electrically connected to the main board. The body fat chip may be electrically connected to the body fat detection module through the main board and the circuit board 70. The body fat chip may be used to process the electrical signals collected by the body fat detection module to obtain body fat data of the detected user. It will be understood that when the body fat detection module and the electrocardiogram detection module 22 share the first electrode 221, the first electrode 221 may also be electrically connected to the body fat chip.

For example, when a user wears the electronic device to measure body fat, they simultaneously touch the second area 2 and the third area 4 with one finger. A reference electrode can be provided on the back of the electronic device 1000, contacting the user's wrist skin. The first electrode 221, the second electrode 361, and the reference electrode can all be electrically connected to the body fat chip, which then obtains the user's body fat data based on the electrical signals collected by the three electrodes. In other embodiments, the user can also measure body fat by touching the second area 2 and the third area 4 with two fingers, respectively.

It is understood that by providing a body fat detection module, the key module 100 can be used for body fat detection, and the electronic device 1000 has a body fat detection function. Integrating the body fat detection function into the key module 100 allows the key module 100 to not only perform basic key functions but also have a body fat detection function, thus facilitating the multifunctionality of the electronic device 1000. Furthermore, integrating the key and body fat detection functions into a single module facilitates the miniaturization of the electronic device 1000.

In other embodiments, the second detection component 30 may further include other functional devices having electrodes, and these functional devices may also share the first electrode 221 with the electrocardiogram detection module 22 .

In some embodiments, the technical contents that are the same as those of the button module 100 in the previous embodiment are not repeated.

In some embodiments, the second detection component 30 may also be a camera. For example, the camera may be disposed on the inner surface 2a of the second area 2. It is understood that the second area 2 of the cover 10 may be used to protect the camera.

For example, the second area 2 may be a light-transmitting area, so that light outside the key module 100 can pass through the second area 2 and be received by the camera, and the camera can convert the collected light signal into an electrical signal.

For example, the camera's signal collection path may include: external light can pass through the second area 2 of the cover 10, enter the receiving space 109, and pass through the light-transmitting member 90 to be received by the camera. The camera converts the collected optical signal into an electrical signal, which is then transmitted to the main board of the electronic device 1000 through the circuit board 70 and the flexible circuit board 80.

For example, the electronic device 1000 may further include a chip for processing electrical signals generated by the camera (hereinafter referred to as a camera chip). The camera chip may be fixed to the mainboard and electrically connected to the mainboard. The camera may be fixed to the circuit board 70 and electrically connected to the circuit board 70. The camera chip may be electrically connected to the camera via the mainboard and the circuit board 70. The camera chip may be used to process the electrical signals of the camera module, thereby obtaining information related to the external environment in which the key module 100 is located.

It can be understood that by setting up a camera, a photo-taking function can be added; the camera can also recognize user gestures, and the user can operate the electronic device 1000 through different gestures. For example, specific gestures can correspond to different operations of the electronic device 1000 (including turning pages, sliding down, starting, stopping, etc.). For example, specific gestures can also correspond to different applications of the electronic device 1000, and the user can wake up different applications of the electronic device 1000 through different gestures.

In some embodiments, the camera can also be used to collect user identity information. For example, the camera can collect the user's facial features or fingerprint features as the user's identity information for starting the electronic device 1000.

In some embodiments, the electronic device 1000 can archive physiological health parameters of different users. This allows users to not only archive and monitor their own health over the long term, but also the health of their family and friends. When the key module 100 is used to detect heart rate information or electrocardiogram information, the electronic device 1000 can confirm the identity of the person being measured based on facial or fingerprint features detected by the camera, and archive the corresponding health parameters of different people measured by the first detection component 20.

In some embodiments, a second camera may be further provided on the front of the electronic device 1000, and the user may take a selfie through the camera on the front. The button module 100 provided on the side 1004 of the electronic device 1000 may be used to recognize the user's gestures, and the user may control the camera on the front to take a photo through a specific gesture. It is understandable that the camera that recognizes gestures is located on the side 1004 of the electronic device 1000. When the user takes a selfie, the camera on the front of the electronic device 1000 will not capture the user's gestures into the photo, and the user experience is better. In addition, when the electronic device 1000 is a watch or a bracelet, the camera that recognizes gestures is located on the side 1004 of the electronic device 1000. When the user performs gesture control to take a photo, there is no need to remove the watch or bracelet, and the user experience is better.

In some embodiments, when the camera of the second detection component 30 can be used to shoot outdoor scenes, the second detection component 30 is installed on the side 1004 of the electronic device 1000. When the electronic device 1000 is a watch or a bracelet, the user can raise his hand and point the second detection component 30 toward the object to be photographed, and the shooting can be completed without taking off the electronic device 1000.

In some embodiments, the second detection component 30 may also be a fingerprint detection module. For example, the fingerprint detection module may be a capacitive fingerprint module or an ultrasonic fingerprint module.

For example, the fingerprint detection module can be located on the inner surface 2a of the second region 2 of the cover 10. It is understood that the fingerprint detection module does not need to collect external ambient light, and the second region 2 of the cover 10 can be made of an opaque material. For example, the second region 2 of the cover 10 can be made of the same color and material as the middle frame 310, so that the side surface 1004 of the sub-electronic device 1000 can have a more consistent appearance.

For example, when the fingerprint detection module is an ultrasonic fingerprint module, the ultrasonic fingerprint module may include a transmitter and a receiver. When a user performs fingerprint recognition, the user places their finger on the second area 2 of the cover 10. The transmitter can be used to emit ultrasound, which can pass through the second area 2 to the user's finger position. The ultrasound, after being reflected by the user's finger, passes through the second area 2 again and is received by the receiver. The receiver can convert the collected ultrasound information after being reflected by the user's finger into an electrical signal.

In some embodiments, the fingerprint detection module can be fixed to the circuit board 70 and electrically connected to the circuit board 70. For example, the transmitter and the receiver can be arranged on the circuit board 70 at intervals.

For example, the electronic device 1000 may further include a chip for processing the electrical signal generated by the fingerprint detection module (hereinafter referred to as a fingerprint chip). The fingerprint chip may be fixed to the mainboard and electrically connected to the mainboard. The fingerprint chip may be electrically connected to the fingerprint detection module via the mainboard and the circuit board 70. The fingerprint chip may be used to process the electrical signal of the fingerprint detection module, thereby obtaining fingerprint information. The electronic device 1000 may compare the identified fingerprint information with the pre-stored fingerprint information to achieve identity recognition.

It is understandable that by providing a fingerprint detection module, the electronic device 1000 can have an identity recognition function.

In some embodiments, the electronic device 1000 can archive physiological health parameters of different users. This allows users to not only archive and monitor their own health over the long term, but also the health of their family and friends. When the key module 100 is used to detect heart rate or electrocardiogram (ECG) information, the electronic device 1000 can confirm the identity of the person being measured based on the fingerprint information recognized by the fingerprint detection module, and archive the corresponding health parameters measured by different individuals using the first detection component 20.

In some embodiments, the user can associate different fingerprints of their own fingers with functions of the electronic device 1000. The electronic device 1000 can confirm the function that the user currently wants to activate based on the fingerprint information recognized by the fingerprint detection module. For example, when the user sets the fingerprint of their middle finger as the switch signal to activate the heart rate or electrocardiogram measurement of the key module 100, the user touches the cover 10 with the middle finger. When the fingerprint detection module recognizes the fingerprint information of the middle finger, the first detection component 20 of the key module 100 activates the heart rate or electrocardiogram measurement.

In some embodiments, the second detection component 30 may also be an infrared emitter. The infrared emitter may be disposed on the inner surface 2a of the second region 2. The infrared emitter may be configured to emit infrared rays, which may penetrate the second region 2 and reach the outside of the key module 100.

It is understood that the infrared emitter does not need to collect external ambient light, and the second area 2 of the cover 10 can be made of an opaque material. For example, the second area 2 of the cover 10 can be made of the same color and material as the middle frame 310, so that the side surface 1004 of the electronic device 1000 can have a more consistent appearance.

In some embodiments, the infrared emitter can be fixed to the circuit board 70 and electrically connected to the circuit board 70. For example, the infrared emitter can include a light source and a driving circuit. The light source is electrically connected to the driving circuit. The light source and the driving circuit can be spaced apart on the circuit board 70.

For example, the electronic device 1000 may further include a chip for emitting infrared rays from an infrared emitter (hereinafter referred to as the infrared chip). The infrared chip may be fixed to the mainboard and electrically connected to the mainboard. The infrared chip may be electrically connected to the infrared emitter via the mainboard and the circuit board 70. The infrared chip may be used to transmit infrared emission instructions to the infrared emitter. The infrared emission instructions are transmitted to the driving circuit via the mainboard and the circuit board 70, and the driving circuit drives the infrared emitter to emit infrared rays.

It is understandable that by providing the key module 100 with an infrared transmitter, the electronic device 1000 can have an infrared remote control function.

In some embodiments, the second detection component 30 may also be a distance sensor. For example, the distance sensor may be an optical distance sensor, an infrared distance sensor, an ultrasonic distance sensor, etc. This application does not limit the type of distance sensor.

The following describes an infrared distance sensor as an example. The infrared distance sensor may include an infrared emitting tube and an infrared receiving tube. For example, the infrared emitting tube and the infrared receiving tube may be spaced apart on a circuit board 70 and electrically connected to the circuit board 70. When a user needs to measure distance, the infrared emitting tube emits infrared light. The infrared light can penetrate the second area 2 and reach the outside of the key module 100. Upon encountering an obstacle, it is reflected by the obstacle and then received by the infrared receiving tube. The infrared receiving tube converts the received infrared light signal into an electrical signal.

In some embodiments, when the second detection component 30 may include an infrared distance sensor and an infrared transmitter with an infrared remote control function, the infrared distance sensor and the infrared transmitter of the infrared remote control may share an infrared emitting tube.

Exemplarily, the electronic device 1000 may further include a chip for controlling the distance sensor to perform distance measurement (hereinafter referred to as the distance chip). The distance chip may be fixed on the mainboard and electrically connected to the mainboard. The distance chip may be electrically connected to the distance sensor through the mainboard and the circuit board 70. The distance chip may be used to send distance detection instructions to the distance sensor, and may also be used to analyze the electrical signal generated by the distance sensor to obtain distance information. Taking the distance sensor as an infrared distance sensor as an example, the distance chip may calculate the distance between the obstacle and the infrared generating tube based on the time difference between the infrared emitting tube emitting infrared rays and the infrared receiving tube receiving infrared rays. This distance is approximately the distance between the electronic device 1000 and the obstacle.

It is understood that by providing a distance sensor in the key module 100, the electronic device 1000 can have a distance detection function. The distance detection function can be applied to various scenarios in the user's daily life. The following describes several specific application scenarios of the distance sensor.

In some embodiments, by providing a distance sensor, the electronic device 1000 can have fall detection.

In some embodiments, by providing a distance sensor, the electronic device 1000 can have a height measurement function. For example, when a user needs to measure their height, they can hold the electronic device 1000 above their head, so that the cover 10 of the key module 100 is roughly at head height. At the same time, the cover 10 is facing the bottom surface. When the infrared emitting tube emits infrared light, the infrared light hits the ground and returns to be received by the infrared receiving tube. The distance chip can analyze the electrical signal generated by the distance sensor to obtain the distance information between the infrared emitting tube and the bottom surface, thereby achieving height measurement.

In some embodiments, the electronic device 1000 can be equipped with a distance sensor to detect nearby obstacles. For example, if the distance sensor is an infrared distance sensor, when the infrared emitting diode emits infrared light but the infrared receiving diode does not receive the reflected infrared light, it indicates that there are no obstacles nearby. This function can help users with poor eyesight when traveling.

In some embodiments, when electronic device 1000 includes a motor, the distance chip can be electrically connected to the motor. The motor can then notify the user of nearby obstacles based on the detection results of the distance sensor. For example, when the distance chip detects an obstacle within 3 meters using the distance sensor, the distance chip can send a vibration command to the motor to alert the user of the nearby obstacle.

In some embodiments, the technical contents that are the same as those of the button module 100 in the previous embodiment are not repeated.

In some embodiments, the second detection component 30 of the button module 100 may include two or more of the following: a camera, an ambient light sensor 31, a fingerprint detection module, an infrared emitter, and a distance sensor. It is understood that the second detection component 30 may include multiple functional components, which can be combined to achieve functions not available to a single functional component, or to improve the measurement accuracy of a single functional component. Several combinations of multiple functional components in the second detection component 30 are described below for illustrative purposes.

FIG16 is a schematic structural diagram of yet another embodiment of the watch body 1001 shown in FIG1 .

Exemplarily, the second detection component 30 comprises an ambient light sensor 31 and a camera. The key module 100 can calculate sunshine hours using the light intensity detected by the ambient light sensor 31. However, when the user enters a room or the cover 10 of the key module 100 is blocked by clothing, the light intensity can be reduced. In this case, the camera can identify whether the light is reduced due to clothing or the indoor environment, and then adjust the statistical results of the ambient light sensor, making the sunshine hours statistics of the key module 100 more accurate.

In some embodiments, when the second detection component 30 includes two or more of the camera, ambient light sensor 31, fingerprint detection module, infrared emitter, and distance sensor, the second area 2 may include multiple spaced sub-areas 29, and the functional components included in the second detection component 30 may be respectively disposed in a one-to-one correspondence with the multiple sub-areas 29. The multiple spaced sub-areas 29 may be connected via a connection area 3.

For example, when the second detection component 30 is an ambient light sensor 31 and a camera, the second area 2 may include two spaced-apart sub-areas 29, with the ambient light sensor 31 and the camera respectively disposed in a one-to-one correspondence with the two sub-areas 29. For example, the ambient light sensor 31 may be disposed in the first sub-area 29 from left to right, and the camera may be disposed in the second sub-area 29.

For example, among the multiple sub-areas 29, a portion of the sub-areas 29 can be set as light-transmitting areas, and another portion can be set as light-impermeable areas, so as to meet the requirements of different functional devices for collecting light.

For example, the shapes and sizes of the plurality of sub-regions 29 may be different, and the shapes of the sub-regions 29 may be designed according to the corresponding functional devices.

For example, when the plurality of sub-regions 29 have different requirements for light transmission performance, the plurality of sub-regions 29 can be prepared in advance and then fixedly connected to other regions of the cover plate 10 .

FIG17 is a schematic structural diagram of yet another embodiment of the watch body 1001 shown in FIG1 .

It is understandable that some functional components can be combined in the first detection assembly 20 and the second detection assembly 30 so that the key module 100 can have new functions. Functional components that need to be used in combination can be arranged adjacent to each other.

Exemplarily, the second detection component 30 may include an ambient light sensor 31, a camera, and a fingerprint detection module. The ambient light sensor 31, the camera, and the fingerprint detection module may be arranged along the length of the key module 100. The camera may be located between the ambient light sensor 31 and the fingerprint detection module. The ambient light sensor 31 and the camera may be positioned adjacent to each other, and their combined effect may improve the accuracy of sunlight detection. The fingerprint detection module may be located on a side of the camera away from the ambient light sensor, or on a side of the ambient light sensor 31 away from the camera.

For example, the fingerprint detection module can be arranged adjacent to the first detection component 20. When the button module 100 performs health detection, the fingerprint module can be used for identity recognition. The user only needs to place the finger used for identity recognition on the cover so that the finger can cover the first area 1 and the second area 2 at the same time, and the detection can be completed with one click, which provides a better user experience.

FIG18 is a schematic structural diagram of yet another embodiment of the watch body 1001 shown in FIG1 .

As shown in Figure 18, some decorative patterns can be provided on the outer surface 2b of the second area 2 to improve the appearance of the key module 100. In Figure 18, the decorative pattern of the second area 2 is indicated by the word "LOGO".

For example, when the second detection component 30 can be a device that does not need to collect ambient light, such as an ultrasonic fingerprint module or an infrared transmitter, the decorative pattern will not affect the functional use of the second detection component 30.

In other embodiments, the first detection component 20 may also be a functional component other than the optical heart rate detection module 21 and the electrocardiogram detection module 22. The second detection component 30 may also be a functional component other than the camera, ambient light sensor 31, fingerprint detection module, infrared transmitter, distance sensor, and body fat detection module, such as a speaker, microphone, etc.

It is understood that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other, and any combination of features in different embodiments is also within the scope of protection of the present application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

It should be understood that all the above drawings are illustrative illustrations of the present application and do not represent the actual size of the product. Moreover, the dimensional ratios between the components in the drawings are not intended to limit the actual product of the present application.

The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims (21)

A key module (100), characterized in that it comprises a cover plate (10), a first detection component (20) and a second detection component (30), wherein the cover plate (10) comprises a first area (1) for arranging the first detection component (20) and a second area (2) for arranging the second detection component (30), the first detection component (20) is an optical heart rate detection module (21) or an electrocardiogram detection module (22), and the second detection component (30) is one or more of a camera, an ambient light sensor (31), a fingerprint detection module, an infrared transmitter, a distance sensor and a body fat detection module; The key module (100) is used to detect user operations on the key module (100). The key module (100) according to claim 1 is characterized in that the key module (100) is arranged on a side (1004) of the electronic device (1000). The key module (100) according to claim 1 or 2, characterized in that the first detection component (20) is an optical heart rate detection module (21), and the optical heart rate detection module (21) includes a light receiver (212) and a light emitter (211) arranged at intervals; The first area (1) is a light-transmitting area, and the light-transmitting area is used to transmit the light emitted by the light emitter (211), and the light receiver (212) is used to receive the light that passes through the light-transmitting area. The key module (100) according to claim 3 is characterized in that the key module (100) further includes a shading structure (50), and the shading structure (50) is located between the light emitter (211) and the light receiver (212). The key module (100) according to claim 3 or 4 is characterized in that the key module (100) further comprises a Fresnel film (40), and the Fresnel film (40) is arranged between the light emitter (211) and the first area (1). The key module (100) according to claim 1 or 2 is characterized in that the key module (100) further includes a bracket (60) and a circuit board (70), the cover plate (10) is arranged on the first surface (61) of the bracket (60), and the circuit board (70) is arranged on the second surface (62) of the bracket (60), and the first surface (61) and the second surface (62) are arranged opposite to each other. The key module (100) according to claim 6 is characterized in that the first detection component (20) is an optical heart rate detection module (21), and the optical heart rate detection module (21) includes a light receiver (212) and a light emitter (211) arranged at intervals, and the light receiver (212) and the light emitter (211) are located between the cover plate (10) and the circuit board (70). The key module (100) according to claim 6 or 7, characterized in that the second detection component (30) is located between the cover plate (10) and the circuit board (70); The key module (100) further includes a light-transmitting member (90), the light-transmitting member (90) being used to fill a receiving space (109) formed by the circuit board (70), the bracket (60) and the cover plate (10), and the light-transmitting member (90) connecting the first detection component (20), the second detection component (30) and the circuit board (70). The key module (100) according to any one of claims 6 to 8, characterized in that the bracket (60) includes a side wall (63) and a baffle (64), the side wall (63) is annular, the side wall (63), the circuit board (70) and the cover plate (10) enclose an accommodating space (109), the baffle (64) connects the inner side surface (633) of the side wall (63), the cover plate (10) and the circuit board (70), the baffle (64) and the side wall (63), the first area (1) and the circuit board (70) enclose a first accommodating space (109), and the baffle (64) and the side wall (63), the second area (2) and the circuit board (70) enclose a second accommodating space (109); The first detection component (20) is disposed in the first accommodating space (109), and the second detection component (30) is disposed in the second accommodating space (109). The key module (100) according to any one of claims 6 to 8, characterized in that the circuit board (70) comprises a first portion (76) and a second portion (77), the first portion (76) and the second portion (77) being arranged along the length direction of the cover plate (10), and the first portion (76) and the second portion (77) being arranged at an angle therebetween; The first detection component (20) is disposed on the first portion (76), and the second detection component (30) is disposed on the second portion (77). The key module (100) according to any one of claims 6 to 10 is characterized in that the first area (1) and the second area (2) are arranged along the length direction of the cover plate (10). The key module (100) according to any one of claims 1 to 11, characterized in that the key module (100) further comprises a pressure sensing circuit (98) and a pressure sensing component (99), wherein the pressure sensing component (99) is arranged on the inner side of the cover plate (10), and the pressure sensing circuit (98) is fixed to the pressure sensing component (99); When the cover plate (10) is subjected to pressure and the pressure sensing component (99) is deformed, the pressure sensing circuit (98) is used to detect the deformation of the pressure sensing component (99). The key module (100) according to claim 1 or 2 is characterized in that the first detection component (20) is an electrocardiogram detection module (22), and the electrocardiogram detection module (22) includes a first electrode (221), and the first electrode (221) is at least partially arranged on the outer surface (1b) of the first area (1). The key module (100) according to claim 1 or 2 is characterized in that the key module (100) further includes a third detection component, and the cover plate (10) further includes a third area (4) for arranging the third detection component. The button module (100) according to claim 14 is characterized in that the first detection component (20) is an optical heart rate detection module (21), the third detection component is an electrocardiogram detection module (22), and the electrocardiogram detection module (22) includes a first electrode (221), and the first electrode (221) is at least partially arranged on the outer surface (4b) of the third area (4). The key module (100) according to claim 13 or 15, characterized in that the key module (100) further comprises a bracket (60) and a circuit board (70), the cover plate (10) is arranged on a first surface (61) of the bracket (60), the circuit board (70) is arranged on a second surface (62) of the bracket (60), and the first surface (61) and the second surface (62) are arranged opposite to each other; The electrocardiogram detection module (22) further includes a conductive member (222), which is disposed between the cover plate (10) and the circuit board (70) and electrically connected between the first electrode (221) and the circuit board (70). The key module (100) according to claim 13 or 15, characterized in that the second detection component (30) is a body fat detection module, the body fat detection module comprises a second electrode (361), and the second electrode (361) is at least partially arranged on the outer surface (2b) of the second area (2); An insulating structure (19) is provided between the first electrode (221) and the second electrode (361). An electronic device (1000) is characterized by comprising a housing (300) and a key module (100) according to any one of claims 1 to 17, wherein the key module (100) is mounted on the housing (300). The electronic device (1000) according to claim 18, characterized in that the electronic device (1000) is a watch or a bracelet. The electronic device (1000) according to claim 18 or 19 is characterized in that the electronic device (1000) further includes a screen (200), the housing (300) includes a middle frame (310) and a back cover (320), the middle frame (310) is connected between the screen (200) and the back cover (320), and the button module (100) is installed on the outer surface (3101) of the middle frame (310). The electronic device (1000) according to any one of claims 18 to 20 is characterized in that the electronic device (1000) further includes a motor, the motor is provided in the housing (300), and the motor vibrates according to data detected by the key module (100).