Pressure detection module and wrist wearable device

Abstract

The invention discloses a pressure detection module and wrist wearable equipment. The pressure detection module comprises a first circuit board, a pressure sensor, a first packaging layer and a second packaging layer. Wherein the pressure sensor is fixed on the board surface of the first circuit board and is electrically connected with the first circuit board; the first packaging layer is fixed to the plate surface of the first circuit board and covers the pressure sensor, the first packaging layer comprises a protruding part, the protruding part is located on the side, back to the first circuit board, of the pressure sensor, and at least part of the protruding part right faces the detection surface of the pressure sensor; the second packaging layer is fixed on one side, back to the first circuit board, of the first packaging layer, and the hardness of the second packaging layer is smaller than that of the first packaging layer. According to the pressure sensor, by arranging the protruding part, the detection sensitivity of the pressure sensor can be improved, smaller pressure changes can be detected, the pressure sensor can detect pressure pulse waves under the small pressure, and the use experience of a user is improved.

Description

Technical Field

[0001] This application relates to wearable devices, and more particularly to a pressure detection module and a wrist-worn wearable device. Background Technology

[0002] Currently, the main health characteristic detection methods in wrist-worn wearable devices are developed and implemented based on photoplethysmography (PPG) signals collected by optical sensors from blood vessels on the back of the wrist. Health characteristic detection includes heart rate, blood oxygen, heart health, and prediction of high blood sugar trend risk. However, due to the limited biological information carried by the PPG signal itself, it is becoming increasingly difficult to conduct in-depth analysis based on the PPG signal. Therefore, some wrist-worn wearable devices detect health characteristics by detecting pressure pulse waves.

[0003] The pressure pulse wave is the mechanical signal generated by the impact of blood on blood vessels during the heart's cyclical beating. The pressure pulse wave only exists in arterial blood vessels. You can feel the beating at the same frequency as the heart by touching superficial arteries such as the radial artery, ulnar artery, temporal artery, and carotid artery with your fingers. This beating signal is the pressure pulse wave.

[0004] However, because measuring pressure pulse waves requires applying a certain amount of pressure to the user's wrist via a sensor, the user experience during measurement is not good. Summary of the Invention

[0005] The purpose of this application is to provide a pressure detection module and a wrist-worn wearable device. By incorporating protrusions, the pressure detection module enhances the detection sensitivity of the pressure sensor, enabling it to detect smaller pressure changes. This allows the pressure sensor to detect pressure pulse waves even under relatively low pressure, thus improving the user experience.

[0006] In a first aspect, this application provides a pressure detection module that can be applied to a wrist-worn wearable device. The pressure detection module includes a first circuit board, a pressure sensor, a first encapsulation layer, and a second encapsulation layer.

[0007] The pressure sensor is fixed to the surface of the first circuit board and is electrically connected to the first circuit board;

[0008] A first encapsulation layer is fixed to the surface of the first circuit board and covers the pressure sensor. The first encapsulation layer includes a protrusion located on the side of the pressure sensor facing away from the first circuit board, and at least partially facing the detection surface of the pressure sensor.

[0009] The second encapsulation layer is fixed to the side of the first encapsulation layer facing away from the first circuit board, and the hardness of the second encapsulation layer is less than that of the first encapsulation layer.

[0010] In this application, the first encapsulation layer has a higher rigidity, which can better protect the pressure sensor. Furthermore, by setting protrusions, the first encapsulation layer can improve the detection sensitivity of the pressure sensor, enabling it to detect smaller pressure changes and allowing the pressure sensor to detect pressure pulse waves under relatively low pressure. The second encapsulation layer is softer than the first encapsulation layer. When the pressure detection component presses against the user's skin to perform pressure detection, the second encapsulation layer reduces the pressure exerted on the user, resulting in a better wearing and detection experience.

[0011] The detection surface is used to detect changes in pressure and can convert mechanical signals into electrical signals through deformation. A protrusion protrudes relative to the detection surface. The protrusion is at least partially positioned opposite the detection surface of the pressure sensor, meaning that the projection of the protrusion along the vertical direction of the first circuit board overlaps with the detection surface. Therefore, when the protrusion is subjected to pressure, it can transmit the pressure to the detection surface.

[0012] The protrusion has a first projection on the surface of the first circuit board, and the detection surface of the pressure sensor forms a second projection on the surface of the first circuit board. The area of ​​the first projection is smaller than the area of ​​the second projection, and the first projection falls within the range of the second projection, so that the pressure transmission from the protrusion to the detection surface of the pressure sensor is more accurate.

[0013] The shape of the protrusion can be spherical, cylindrical, frustum, etc.

[0014] The second encapsulation layer can be made of silicone to ensure good skin-friendliness of the pressure detection components and module, thus improving the wearing experience of the wrist-worn device. Alternatively, the first encapsulation layer can also be made of silicone. In this case, the connection between the second and first encapsulation layers is even better.

[0015] In some possible implementations, the hardness of the first encapsulation layer is greater than or equal to Shore A10; and / or, the hardness of the second encapsulation layer is less than or equal to Shore A5.

[0016] In this implementation, by setting the hardness range of the first encapsulation layer and / or the second encapsulation layer, the pressure detection module can have better detection sensitivity and user comfort.

[0017] In some possible implementations, the second encapsulation layer covers the protrusion, the second encapsulation layer includes an outer surface disposed opposite to the first encapsulation layer, the outer surface of the second encapsulation layer covers the protrusion, and the minimum distance between the second encapsulation layer and the protrusion is less than 0.5 mm.

[0018] In this implementation, the protrusion is covered by a second encapsulation layer, creating a hidden design. Since the outer surface of the second encapsulation layer is a complete plane, it adheres better to the user's skin, resulting in a larger contact area and less pressure on the user when wearing the pressure detection module. Furthermore, the protrusion is also protected by the first encapsulation layer, and since it does not directly contact the user's skin, it is more comfortable for the user to wear.

[0019] In some possible implementations, the second encapsulation layer includes an outer surface facing away from the first encapsulation layer, and the protrusion includes a contact surface facing away from the pressure sensor, the contact surface being flush with the outer surface of the second encapsulation layer.

[0020] In this implementation, since the contact surface is flush with the outer surface of the second encapsulation layer, the contact surface and the outer surface of the second encapsulation layer form a complete plane. Therefore, the pressure detection component can not only enable the pressure sensor to have high detection sensitivity and accuracy, but also reduce the pressure on the user's skin by contacting the user's skin through a complete plane. The user will feel less pressure when wearing it, which will help improve wearing comfort.

[0021] In some possible implementations, the pressure sensor includes a detection body and electrodes, with the detection surface located on the detection body; the electrodes are located on the side of the detection body opposite to the detection surface, and the electrodes are fixed and electrically connected to a first circuit board; or, the electrodes and the detection surface are located on the same side of the detection body, the electrodes are located around the detection surface, the electrodes are electrically connected to the first circuit board via bonding wires, and a first encapsulation layer covers the bonding wires.

[0022] In this implementation, the bonding wires are protected by covering them with a first encapsulation layer. Furthermore, the high rigidity of the first encapsulation layer also helps ensure a reliable electrical connection of the bonding wires.

[0023] The protrusions in the first encapsulation layer can be offset from the bonding wires. In this case, the protrusions avoid the bonding wires, and when the protrusions are compressed, they will not compress the bonding wires, which helps to ensure the structural stability of the bonding wires, thereby ensuring the reliability of the electrical connection between the pressure sensor and the first circuit board.

[0024] In some possible implementations, the pressure sensor has a detection cavity located in the detection body, with the opening of the detection cavity facing away from the detection surface; the first circuit board has a vent hole that communicates with the detection cavity.

[0025] In this implementation, a vent is provided at the opening of the detection cavity on the first circuit board, and the vent communicates with the detection cavity, allowing the detection cavity to connect with the atmosphere. In this case, the pressure sensor can use a differential pressure detection mode, and its detection surface is less affected by changes in atmospheric pressure during detection, making the pressure sensor's detection results more accurate.

[0026] In some possible implementations, the number of pressure sensors is multiple.

[0027] In this implementation, multiple pressure sensors can work together to form a larger detection area, giving the pressure detection component a larger detection area and thus better detection adaptability.

[0028] Multiple pressure sensors are arranged in a row and spaced apart from each other. This allows for a larger area of ​​detection around the wrist with a smaller number of pressure sensors.

[0029] The system comprises multiple pressure sensors arranged in an array. These sensors can be arranged in multiple rows and columns, with the row and column directions perpendicular and the row and column spacing equal, resulting in a rectangular distribution. This array arrangement of multiple pressure sensors provides a more regular pattern, facilitating detection by the pressure sensing component. Furthermore, by using a relatively small number of pressure sensors, a larger area can be covered, enabling the pressure sensing component to detect pressure over a wider area, particularly the circumferential region of the wrist.

[0030] The device comprises multiple pressure sensors arranged in multiple rows, with adjacent rows staggered. The row direction of the multiple pressure sensors can be parallel to the length direction of the pressure detection module, aligning with the length extension direction of the wristband. Because of the staggered arrangement of adjacent rows, a larger area coverage can be achieved by using a relatively small number of pressure sensors, and a denser arrangement of detection points along the row direction allows the pressure detection component to detect pressure over a larger area. Furthermore, since the row direction of the multiple pressure sensors is parallel to the length extension direction of the wristband, it wraps around the user's wrist when the wearable device is worn, enabling detection over a wider area around the user's wrist.

[0031] In some possible implementations, the pressure detection module also has a vent hole, which is offset from the pressure sensor and extends through the first circuit board, the first encapsulation layer, and the second encapsulation layer.

[0032] In this implementation, the vents allow air to pass through, and the pressure detection component improves its breathability by setting vents, reducing the risk of the second encapsulation layer sticking to the skin, thereby improving the comfort of use.

[0033] In some possible implementations, the pressure detection module further includes a pressurizing component located on the side of the first circuit board facing away from the pressure sensor. The pressurizing component includes a fixed member and a movable member. The movable member is mounted on the fixed member, and the pressurizing component moves relative to the fixed member in a first direction via the movable member, thereby pushing the first circuit board and the pressure sensor to move in the first direction, wherein the first direction is perpendicular to the surface of the first circuit board.

[0034] In this implementation, the pressurizing component enables the pressure sensor to press against the wrist with appropriate pressure, thereby improving detection accuracy. In some examples, by pushing the pressure detection component with the pressurizing component, the pressure sensor can press against the wrist with different pressures. The pressure sensor can detect pressure pulse waves under different pressures, thus obtaining more multi-dimensional information and making the detection more comprehensive and accurate.

[0035] The first direction can be perpendicular to the surface of the first circuit board. Since the pressure sensor needs to press against the skin of the wrist to detect pressure, when the first direction is perpendicular to the detection area of ​​the user's wrist skin that the pressure sensor contacts, the pressure sensor presses against the detection area in a direction perpendicular to the detection area, thereby achieving higher detection accuracy.

[0036] In some possible implementations, the fixed member has a first fitting portion, the movable member has a second fitting portion, and the first fitting portion and the second fitting portion fit together and are movably connected along a first direction.

[0037] In this implementation, the interlocking fixed and movable parts are easy to install and facilitate the guidance of the relative movement direction of the fixed and movable parts. This ensures that when the movable part pushes the pressure sensor against the user's wrist, the pressure direction is not easily deviated, thereby effectively ensuring the detection accuracy of the pressure sensor.

[0038] In some possible implementations, the first fitting is fitted inside the second fitting. One of the first fitting and the second fitting is provided with a guide groove, and the other is provided with a guide block. The guide block is slidably connected to the guide groove, and the sliding direction is parallel to the first direction.

[0039] In this implementation, by setting a guide groove and a guide block cooperation structure between the first and second fitting parts, and making their relative sliding direction parallel to the first direction, the second fitting part moves relative to the first fitting part along the first direction, and can be circumferentially limited in the circumferential direction, so that the relative movement direction between the second and first fitting parts is more accurate, the driving direction of the pressurizing component to the pressure detection component is more accurate, and the detection of the pressure detection component is more precise.

[0040] The guide grooves and guide blocks can be designed in groups to form a guide structure. The number of guide structures can range from two to six groups. This allows for more accurate guidance of the moving parts and simplifies the structure of the pressurizing assembly.

[0041] In some possible implementations, the pressurizing assembly also includes a rolling element located between the first and second fittings and in contact with both fittings.

[0042] In this implementation, the rolling element is used to reduce the frictional force between the first and second mating parts, thereby improving the smoothness of the relative movement between the first and second mating parts, reducing the risk of jamming, and making the pressurizing action of the pressurizing component more reliable.

[0043] In some possible implementations, the pressurizing assembly also includes an elastic element that elastically connects the first fitting part and the second fitting part.

[0044] In this implementation, the elastic element has a reset function, which is used to keep the moving part in the initial position or restore it to the initial position when the pressurizing component is not pressurized.

[0045] The elastic element can be located in the guide groove between the first and second fitting parts. In this case, the space utilization of the pressurizing assembly is higher.

[0046] In some possible implementations, the fixing component further includes a fixing part connected to one end of the first fitting part, and the movable component further includes a pushing part connected to one end of the second fitting part, with the pushing part and the fixing part disposed opposite to each other; the pressurizing component forms a driving air chamber between the fixing part and the pushing part, and by inflating the driving air chamber, the pushing part moves relative to the fixing part.

[0047] In this implementation, the pressurization component uses a drive air chamber to fill the chamber with air from an air source, thereby driving the moving parts. Compared with mechanical structure drive (such as rack and pinion transmission), the drive structure design in this embodiment is more flexible and smaller, which is beneficial for the miniaturization design of the pressurization component and pressure detection module.

[0048] In some possible implementations, the pressurization assembly also includes an airbag located between the fixed part and the pushing part, with the driving air chamber located inside the airbag.

[0049] In this implementation, the airbag is relatively easy to install, and the sealing environment of the driving air chamber formed by the airbag is relatively reliable, which helps to improve the driving reliability of the pressurization component.

[0050] The airbag can be a stacked airbag, meaning it can be formed by multiple interconnected and stacked sub-airbags. The airbag can expand and contract in at least a first direction. When inflated, the airbag extends along the first direction and pushes the actuating part, causing the movable part to move. When deflated, the airbag retracts, and the movable part returns to its original position. In this configuration, the stacked airbag is easy to assemble, and the coordination of multiple sub-airbags during expansion makes the expansion direction more accurate and the expansion more reliable.

[0051] In some possible implementations, the pressurization assembly also includes an elastic membrane that is sealed to the other end of the first fitting. The driving air chamber is surrounded by the fixed part, the first fitting and the elastic membrane. When the driving air chamber is inflated, the elastic membrane bulges away from the fixed part and abuts against and pushes the driving part.

[0052] In this implementation, the elastic membrane structure is simple and easy to install; and the elastic membrane is close to the pushing part, which facilitates the direct movement of the pushing part under gas drive.

[0053] The elastic membrane can be made of silicone, and its hardness can be less than or equal to Shore A5. Additionally, its elastic modulus can be less than or equal to 50 kPa. In this case, the elastic membrane exhibits good deformability.

[0054] In some possible implementations, the pressurization assembly also includes a folded membrane that is sealed to the other end of the first fitting; the driving air chamber is formed by the fixing part, the first fitting and the folded membrane, and when the driving air chamber is inflated, the folded part of the folded membrane opens, and the folded membrane abuts against and pushes the driving part.

[0055] In this implementation, the folded membrane is easy to install with the first set of parts, and the folded membrane can produce folding deformation, but the folded membrane material does not undergo tensile deformation, resulting in a long service life and greater reliability.

[0056] The folded membrane may include a folded portion and a connecting portion, which can be integrally formed structural components. The folded portion is folded and sealed to the first open end, and can unfold along a first direction. The connecting portion is provided corresponding to the pushing portion and can be close to the pushing portion. The connecting portion can be circular and may not have deformability. In this case, the folded membrane has good deformability and high reliability.

[0057] In some possible implementations, the pressurization assembly also includes a seal that seals the connection between the first fitting and the second fitting; the drive air chamber is formed by the first fitting, the second fitting, and the seal.

[0058] In this implementation, the sealing element directly forms the driving air chamber by sealing the first fitting part and the second fitting part. The structure is relatively simple and reliable.

[0059] The sealing element can be a sealing ring. A sealing groove can be opened on the outside of the first opening end of the first fitting part. The sealing element is embedded in the sealing groove. At the same time, the sealing element abuts against the inner wall of the second fitting part, so that the first fitting part and the second fitting part are sealed and connected, and the two can slide relative to each other.

[0060] In some possible implementations, the pressurization assembly also includes a sliding guide rail fixed to the side of the fixed member facing away from the movable member, and the sliding guide rail is used to thread the wristband of the wrist-worn device.

[0061] In this implementation, a sliding guide rail is set up so that it slides relative to the wristband to adjust the position of the sliding guide rail relative to the wristband, thereby adjusting the relative position of the pressure application component and the wristband, and thus adjusting the position of the pressure detection component. This allows the pressure sensor to be basically aligned with the artery in the wrist, thereby improving the accuracy of the wrist-worn device's detection.

[0062] In some possible implementations, the pressure detection module also includes a clamping element that is fixedly connected to a fastener and is used for detachable connection to the wristband of a wrist-worn device.

[0063] In this implementation, a clamping component is provided so that the pressure assembly can be detachably connected to the wristband, facilitating the adjustment of the position of the pressure assembly.

[0064] In some possible implementations, the pressure detection module also includes a conditioning circuit assembly mounted on the side of the pressurization assembly facing away from the first circuit board; the conditioning circuit assembly includes a second circuit board and a chip, the chip being fixed and electrically connected to the second circuit board, and the second circuit board being electrically connected to the first circuit board.

[0065] In this implementation, the conditioning circuit component can be used to perform preliminary processing on the signal from the pressure detection component, and then send the processed data to the main body of the device to reduce the computational burden on the main body of the device.

[0066] In some possible implementations, the fixture is provided with an air inlet, which is connected to the drive air chamber; the pressure detection module also includes a conditioning circuit assembly, which is installed on the side of the pressurizing assembly facing away from the first circuit board; the conditioning circuit assembly includes a second circuit board and a chip, the chip is fixed and electrically connected to the second circuit board, and the second circuit board is electrically connected to the first circuit board; the conditioning circuit assembly also includes an air inlet pipe, which is connected to the air inlet.

[0067] In this implementation, by setting an air inlet in the fixing component and setting an air inlet pipe in the conditioning circuit assembly, the connection between the driving air chamber and the outside world is achieved through the air inlet inlet and the air inlet pipe of the conditioning circuit assembly, making full use of the space of the pressurization component and having a simple structure.

[0068] In some possible implementations, the conditioning circuit assembly also includes a fixed housing and a display screen, with the bottom of the fixed housing fixed to the pressure assembly, the second circuit board mounted inside the fixed housing, and the display screen mounted on the top of the fixed housing.

[0069] In this implementation, the display screen is designed to independently display the detected content, making it convenient for users.

[0070] The display screen can show electrocardiogram curves, or indicators such as heart rate and blood pressure, providing richer content.

[0071] The second circuit board can avoid the intake pipe, so as to achieve a compact layout, thereby making full use of the thickness space of the conditioning circuit component, reducing the thickness of the conditioning circuit component, and facilitating the miniaturization design of the conditioning circuit component.

[0072] In some possible implementations, the conditioning circuit assembly also includes conditioning wires and wire protection housings; the conditioning wires are electrically connected to the second circuit board and the first circuit board, and the conditioning wires are stretchable wires; the wire protection housing includes a first housing and a second housing, the first housing is fixed to a fixing member, the second housing is fixed to a movable member, the first housing and the second housing are movably connected to form a telescopic cavity, and the conditioning wires are at least partially located in the telescopic cavity.

[0073] In this implementation, the first and second shells are movably connected to form a telescopic cavity, and the conditioning wire is at least partially located within the telescopic cavity. When the fixed and movable parts move relative to each other, the first and second shells move synchronously relative to each other, thereby stretching the telescopic cavity to accommodate the stretching of the conditioning wire itself and to protect the conditioning wire.

[0074] Secondly, this application provides a wrist-worn wearable device, which includes: a device body, a wristband, and a pressure detection module as described above; the wristband is connected to the device body; the pressure detection module is installed on the wristband, and the pressure sensor of the pressure detection module is located on the inside of the wristband.

[0075] In this implementation, the user's pulse wave is detected by a pressure sensor, which can provide more accurate health indicators such as blood pressure and heart rate.

[0076] In some possible implementations, the pressure detection module is actively connected to the wristband.

[0077] In this implementation, the pressure detection module can move on the wristband to adjust its position, allowing the user to adjust the pressure sensor to the skin corresponding to the radial artery when wearing the wrist-worn device, resulting in more accurate detection and adaptability to users with different wrist sizes.

[0078] In some possible implementations, the wrist-worn wearable device also includes a connection module mounted on the outside of the wristband, with its two ends connected to the device body and the pressure detection module, respectively. The connection module is stretchable.

[0079] In this implementation, the connection lines between the pressure detection module and the main body of the device are integrated into a connection line module, which improves the integration and wearability of the wrist-worn device; the connection line module is stretchable and can be adjusted to accommodate the position of the pressure detection module, making it convenient for users.

[0080] In some possible implementations, the connection module includes a substrate and connecting wires. The substrate is made of a flexible or elastic material, and the connecting wires are laid in the substrate. The connecting wires electrically connect the main body and the pressure detection module. The connecting wires are laid in the substrate in a wavy or spiral shape.

[0081] In this implementation, the substrate encapsulates the connecting wires to protect them; the substrate is flexible, and the connecting wires are wavy or spiral, allowing the entire connecting line module to be stretchable and deformable; when the pressure detection component of the pressure detection module moves, it can drive the connecting line module to stretch and retract, ensuring a stable electrical connection between the pressure detection module and the main body of the equipment.

[0082] In some possible implementations, the connecting circuit module also includes an air duct, which is arranged in a wavy or spiral shape on the substrate and connects the main body of the device to the pressure detection module.

[0083] In this implementation, the air guide pipe is used to transport gas from the gas source inside the equipment body to the pressure detection module. The air guide pipe is telescopic in its extension direction and has a certain amount of deformation. When the air guide pipe is subjected to force, it can be stretched and can retract after the external force is released; when the pressure detection component of the pressure detection module moves, it can drive the connecting line module to extend and retract, so as to ensure a stable air circuit connection between the pressure detection module and the equipment body. Attached Figure Description

[0084] Figure 1 This is a schematic diagram of the usage state of a wrist-worn wearable device provided in an embodiment of this application;

[0085] Figure 2 yes Figure 1 The diagram shown is a simplified structural representation of the pressure detection module in some embodiments.

[0086] Figure 3 yes Figure 2 The diagram shows the internal structure of the pressure detection component in some embodiments.

[0087] Figure 4 yes Figure 2The diagram shows the internal structure of the pressure sensing component in some other embodiments;

[0088] Figure 5 yes Figure 2 The diagram shows the internal structure of the pressure sensing component in some other embodiments;

[0089] Figure 6 yes Figure 2 The diagram shows the internal structure of the pressure sensing component in some other embodiments;

[0090] Figure 7 yes Figure 2 The diagram shows a partial structure of the pressure detection component in some embodiments;

[0091] Figure 8 yes Figure 2 The diagram shows a partial structure of the pressure detection component in some other embodiments;

[0092] Figure 9 yes Figure 2 The diagram shows a structural schematic of the pressurization assembly in some embodiments;

[0093] Figure 10 yes Figure 9 The diagram shown is a partial structural diagram of the pressurization component and an internal structural diagram in some embodiments.

[0094] Figure 11 yes Figure 9 Top view of the pressurization component shown;

[0095] Figure 12 yes Figure 9 The diagram shows the internal structure of the pressurization component in some embodiments;

[0096] Figure 13 yes Figure 9 An internal structural diagram of another embodiment of the pressurization assembly shown;

[0097] Figure 14 yes Figure 9 An internal structural diagram of another embodiment of the pressurization assembly shown;

[0098] Figure 15 for Figure 9 An internal structural diagram of yet another embodiment of the pressurization assembly shown;

[0099] Figure 16 yes Figure 2 The diagram shows the internal structure of the conditioning circuit assembly in some embodiments;

[0100] Figure 17 yes Figure 16 A bottom view of the conditioning circuit assembly shown.

[0101] Figure 18 yes Figure 16 The internal structure of the conditioning circuit assembly shown is viewed from another angle.

[0102] Figure 19 yes Figure 2 The diagram shows the internal structure of the pressure detection module.

[0103] Figure 20 yes Figure 19 The diagram shows a structural schematic of the conditioning circuit assembly in some embodiments.

[0104] Figure 21 yes Figure 1 The diagram shows a partial structure of the wristband in some embodiments;

[0105] Figure 22 yes Figure 1 A top view of a portion of the structure of the wrist-worn wearable device shown in some embodiments;

[0106] Figure 23 yes Figure 1 The diagram shows a partial structural view of a wrist-worn wearable device in some embodiments;

[0107] Figure 24 yes Figure 1 A front view of a portion of the structure of the wrist-worn wearable device shown.

[0108] Figure 25 yes Figure 24 A side view of a portion of the structure of the wrist-worn wearable device shown.

[0109] Figure 26 yes Figure 1 The diagram shows the structure of the connection module.

[0110] Figure 27 yes Figure 26 The diagram shows the structure of the connecting wires. Detailed Implementation

[0111] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0112] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. The term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone.

[0113] In the description of this specification, the use of terms such as "embodiment," "specific embodiment," and "example" refers to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0114] Please see Figure 1 , Figure 1 This is a schematic diagram of the usage state of a wrist-worn wearable device 100 provided in an embodiment of this application.

[0115] The wrist-worn wearable device 100 provided in this application can be a bracelet, watch, or other electronic device for wrist wear, and can be used for daily monitoring of cardiovascular health. The specific implementation of this application can be applied in numerous scenarios, such as for daily monitoring of health indicators like heart rate and blood pressure, predicting hypertension risk, daily screening of high-risk groups, and cardiovascular risk assessment. Figure 1 The wrist-worn wearable device 100 in the illustrated embodiment is exemplified by a watch.

[0116] refer to Figure 1 A cross-sectional view of the wrist shows two bones: the radius and the ulna. The wrist also contains multiple flexor tendons responsible for finger movement. Additionally, there are two arteries: the radial and ulnar arteries. The radial artery is closer to the radius, and the ulnar artery is closer to the ulna. Furthermore, the radial artery is closer to the thumb in the wrist, while the ulnar artery is closer to the little finger. The wrist-worn wearable device 100 can be worn on the wrist and secured around it.

[0117] In some embodiments, the wrist-worn wearable device 100 may include a device body 10, a wristband 20, and a pressure detection module 30.

[0118] The main body 10 of the device is typically worn on the back of the wrist, that is, on the side away from the radial and ulnar arteries. The main body 10 can be a smart device, possessing software functions such as time display, voice call functionality, and motion detection and health monitoring capabilities. For example, the main body 10 may include a battery, a control motherboard, a control chip, and an electronic screen. This application embodiment does not strictly limit the number and type of components included in the main body 10. It is understood that when the wrist-worn wearable device 100 is a watch, the main body 10 can be the watch body. The main body 10 may have two ends for connecting to the wristband 20.

[0119] The wristband 20 is connected to both ends of the device body 10 and can form a loop with the device body 10 to allow the wearable wrist device 100 to be worn on the user's wrist. The wristband 20 can be flexible to conform to the shape of the wrist. The wristband 20 can be fixedly connected to the device body 10 or detachably connected to the device body 10 to facilitate the replacement of different wristbands 20. In some examples, the wristband 20 can be a single strip structure, with one end of the wristband 20 connected to one end of the device body 10, and the other end of the wristband 20 can be threaded through the other end of the device body 10 and folded back to connect to other positions of the wristband 20 to accommodate different wrist sizes.

[0120] The pressure detection module 30 is installed on the wristband 20. It detects the pressure pulse wave of the wrist artery and collects parameters such as heart rate and blood pressure to assess health conditions. The pressure detection module 30 can be electrically connected to the main device 10. It can directly analyze the detected signal or send it directly to the main device 10 for analysis; this is not strictly limited. In some cases, the pressure detection module 30 can have an active pressurization function. For example, an air source can be set up, and an airbag can be placed inside the module. The air source inflates the airbag to press the sensor against the artery on the wrist skin, obtaining more accurate and multi-dimensional data. In other cases, the pressure detection module 30 may not have an active pressurization function; the tension of the wristband 20 during wear can be used to make the module conform to the user's skin for detection.

[0121] In some embodiments, the connection lines between the pressure detection module 30 and the device body 10 are integrated into a connection line module 40, improving the integration and wearability of the wrist-worn wearable device 100. The connection line module 40 can be located on the outside of the wristband 20, and the connection line module 40 can be fixedly connected to the device body 10 and the pressure detection module 30.

[0122] In some embodiments, the pressure detection module 30 can be movably connected to the wristband 20. The pressure detection module 30 can move on the wristband 20 to adjust its position, allowing the user to adjust the pressure sensor 12 to the skin corresponding to the radial artery when wearing the wrist-worn device 100, resulting in more accurate detection and adaptability to users with different wrist sizes. In this case, the connecting line module 40 is stretchable to accommodate the positional adjustment needs of the pressure detection module.

[0123] In other embodiments, the pressure detection module 30 can be fixed to the wristband 20, and its position is set to correspond to the position of the radial artery for easy detection. In this case, the wristband 20 can be set to different sizes, and users can select different sizes of wristbands 20 to fit different wrist circumferences.

[0124] Please refer to the following: Figure 1 and Figure 2 , Figure 2 yes Figure 1 The diagram shown is a simplified structural representation of the pressure detection module 30 in some embodiments.

[0125] In some embodiments, the pressure detection module 30 may include a pressure detection component 1, a pressurizing component 2, and a conditioning circuit component 3. The conditioning circuit component 3, the pressurizing component 2, and the pressure detection component 1 may be stacked, with the pressurizing component 2 located between the pressure detection component 1 and the conditioning circuit component 3. For example, the pressure detection module 30 can be connected to the wristband 20 via the pressurizing component 2, with the pressure detection component 1 located inside the wristband 20 and the conditioning circuit component 3 located outside the wristband 20. In this embodiment, the pressure detection module 30 is connected to the wristband 20 via the pressurizing component 2, such that the pressure detection module 30 is partially located inside and partially outside the wristband 20, resulting in a smaller protrusion of the pressure detection component 1 relative to the wristband 20 and improved user comfort.

[0126] For example, the pressure detection module 30 has thickness, length, and width. The thickness direction of the pressure detection module 30 is the Z-direction, which can face inwards towards the wristband 20; the length direction of the pressure detection module 30 is the X-direction, which can be parallel to the length extension direction of the wristband 20; the width direction of the pressure detection module 30 is the Y-direction, which can be parallel to the width direction of the wristband 20. It is easy to understand that the X, Y, and Z directions are perpendicular to each other.

[0127] The pressure detection component 1 is used to contact the skin of the user's wrist. By pressing against the skin of the user's wrist, the pressure detection component 1 detects the pressure pulse wave of the wrist artery. It is easy to understand that the pressure detection component 1 may include a pressure sensor 12. The pressure sensor 12 may be in direct contact with the skin, or the pressure sensor 12 may be encapsulated and not in direct contact with the skin; this is not specifically limited here.

[0128] The pressurizing component 2 is used to ensure that the pressure sensor 12 is pressed against the wrist with appropriate pressure, thereby improving the accuracy of detection. In some examples, by pushing the pressure detection component 1 with the pressurizing component 2, the pressure sensor 12 can be pressed against the wrist with different pressures. The pressure sensor 12 can detect pressure pulse waves at different pressures, thus obtaining more multi-dimensional information and making the detection more comprehensive and accurate. For example, the pressurizing component 2 can move the pressure detection component 1 towards the wrist to make the pressure sensor 12 press against the skin, or it can move the pressure sensor 12 towards the wrist to make the pressure sensor 12 directly press against the skin; this is not strictly limited. The pressurizing component 2 can be driven by inflating an airbag, by using a micro-pump hydraulic system, or by a motor drive; these methods will not be listed here.

[0129] The conditioning circuit assembly 3 is electrically connected to the pressure detection assembly 1, for example, via a retractable wire; the conditioning circuit assembly 3 is also electrically connected to the connection line module 40. The conditioning circuit assembly 3 can perform preliminary processing on the signal from the pressure detection assembly 1, and then send the processed data to the main body 10 to reduce the computational burden on the main body 10. In some examples, the conditioning circuit assembly 3 can display the analysis results corresponding to the processed data visually or aurally. In this case, the conditioning circuit assembly 3 has signal processing, signal transmission, and result display functions.

[0130] In other embodiments, the conditioning circuit assembly 3 can send the signal from the pressure detection assembly 1 to the device body 10, whereby the device body 10 performs signal processing, signal analysis, and result display.

[0131] The connection between the conditioning circuit assembly 3 and the pressure application assembly 2 can be a fixed connection or a detachable connection; this embodiment does not strictly limit this.

[0132] Please refer to the following: Figure 2 and Figure 3 , Figure 3 yes Figure 2 The pressure detection component 1 shown is an internal structural diagram in some embodiments.

[0133] In some embodiments, the pressure detection component 1 may include a first circuit board 11, a pressure sensor 12, a first encapsulation layer 13, and a second encapsulation layer 14.

[0134] The pressure sensor 12 is located on one side of the first circuit board 11. For example, the pressure sensor 12 can be mounted on the first circuit board 11 facing away from the pressurization assembly 2 (see reference). Figure 2 The pressure sensor 12 is fixed to the surface of the first circuit board 11 and electrically connected to the first circuit board 11. There can be one or more pressure sensors 12; this embodiment illustrates and describes multiple pressure sensors. A first encapsulation layer 13 is fixed to the surface of the first circuit board 11 and covers the pressure sensor 12. The first encapsulation layer 13 and the first circuit board 11 completely encapsulate the pressure sensor 12 to protect it. A second encapsulation layer 14 is fixed to the side of the first encapsulation layer 13 facing away from the first circuit board 11. The second encapsulation layer 14 covers the first encapsulation layer 13 and can be used to contact the skin of the wrist.

[0135] The pressure sensor 12 has a detection surface 121 for detecting pressure changes and can convert mechanical signals into electrical signals through deformation. The pressure sensor 12 may include a detection body 122, with the detection surface 121 located within it. The pressure sensor 12 may also have a detection cavity 123 located within the detection body 122. The detection cavity 123 has an opening facing away from the detection surface 121, but towards the first circuit board 11. The first circuit board 11 has a vent 111 corresponding to the opening of the detection cavity 123, communicating with the detection cavity 123 and allowing it to connect to the atmosphere. In this configuration, the pressure sensor 12 can employ a differential pressure detection mode, where the detection surface 121 is less affected by atmospheric pressure changes, resulting in more accurate detection results.

[0136] The pressure sensor 12 may further include an electrode 124, which is located on the side of the detection body 122 facing away from the detection surface 121. The electrode 124 is fixedly connected to and electrically connected to the detection body 122. The electrode 124 is fixedly connected to and electrically connected to the first circuit board 11. For example, the electrode 124 can be soldered (e.g., mounted) onto the first circuit board 11 to fix and electrically connect the detection body 122 to the first circuit board 11. In this embodiment, the pressure sensor 12 is fixed and electrically connected to the first circuit board 11 by the electrode 124 facing away from the detection surface 121, making the electrical connection structure between the pressure sensor 12 and the first circuit board 11 reliable. During the pressure detection process when the pressure sensor 12 is subjected to force, the electrical connection structure is stable and not easily damaged, thereby improving the reliability of the pressure detection component 1.

[0137] For example, the first encapsulation layer 13 may include a protrusion 131 located on the side of the pressure sensor 12 facing away from the first circuit board 11, and at least partially facing the detection surface 121 of the pressure sensor 12. The protrusion 131 protrudes relative to the detection surface 121. The fact that the protrusion 131 is at least partially facing the detection surface 121 of the pressure sensor 12 means that the projection of the protrusion 131 along the vertical direction of the first circuit board 11 overlaps with the detection surface 121. Therefore, when the protrusion 131 is subjected to pressure, it can transmit the pressure to the detection surface 121. The number of protrusions 131 may be the same as the number of pressure sensors 12, with each pair corresponding to the other.

[0138] In some examples, the protrusion 131 has a first projection on the surface of the first circuit board 11, and the detection surface 121 of the pressure sensor 12 forms a second projection on the surface of the first circuit board 11. The area of ​​the first projection is smaller than the area of ​​the second projection, and the first projection falls within the range of the second projection, so that the pressure transmission from the protrusion 131 to the detection surface 121 of the pressure sensor 12 is more accurate. The shape of the protrusion 131 can be spherical, cylindrical, frustum-shaped, etc.

[0139] For example, the hardness of the second encapsulation layer 14 can be less than that of the first encapsulation layer 13. In this embodiment, the first encapsulation layer 13 has a higher hardness, which can better protect the pressure sensor 12. Furthermore, by providing the protrusion 131, the first encapsulation layer 13 can improve the detection sensitivity of the pressure sensor 12, enabling it to detect smaller pressure changes and allowing the pressure sensor 12 to detect pressure pulse waves under relatively low pressure. The second encapsulation layer 14 is softer than the first encapsulation layer 13. When the pressure detection component 1 presses against the user's skin to perform pressure detection, the second encapsulation layer 14 ensures that the pressure detection module 30 (see reference) is more flexible. Figure 1 It exerts less pressure on the user, resulting in a better wearing and testing experience.

[0140] The first encapsulation layer 13 has a hardness greater than or equal to Shore A10. Shore A10 is a parameter measured using a Shore A hardness tester. In some examples, the elastic modulus of the second encapsulation layer 14 can be greater than or equal to 0.2 MPa (megapascals). The hardness of the second encapsulation layer 14 can be less than or equal to Shore A5. In some examples, the elastic modulus of the second encapsulation layer 14 can be less than or equal to 50 kPa (kilopascals). In this embodiment, by setting the hardness range of the first encapsulation layer 13 and / or the second encapsulation layer 14, the pressure detection module 30 can have better detection sensitivity and user comfort.

[0141] For example, the material of the second encapsulation layer 14 can be silicone to give the pressure detection component 1 and the pressure detection module 30 better skin-fitting properties, which is beneficial to improving the wearing experience of the wrist-worn wearable device 100. The first encapsulation layer 13 can also be made of silicone. In this case, the connection between the second encapsulation layer 14 and the first encapsulation layer 13 is better. It is understood that in some other embodiments, the first encapsulation layer 13 and / or the second encapsulation layer 14 can also be made of other materials that meet relevant hardness requirements, such as rubber, etc., and this application does not strictly limit this.

[0142] In some embodiments, the first encapsulation layer 13 covers the pressure sensor 12, forming a complete enclosure. The first encapsulation layer 13 may include an enclosure portion 132 and the aforementioned protrusion 131. The enclosure portion 132 can be fixed to the surface of the first circuit board 11 and covers the pressure sensor 12. The surface of the enclosure portion 132 facing away from the first circuit board 11 can be flat, and the thickness of the enclosure portion 132 can be slightly greater than the height of the pressure sensor 12. In this case, the enclosure portion 132 can adequately protect the pressure sensor 12 and facilitates a thinner design for the pressure detection component 1. For example, the difference between the thickness of the enclosure portion 132 and the height of the pressure sensor 12 can be in the range of 0.1 mm to 0.5 mm.

[0143] The protrusion height of the protrusion 131 relative to the wrapping portion 132 can be in the range of 0.1 mm to 0.5 mm. The wrapping portion 132 and the protrusion 131 can be integrally formed structural components. In this case, the manufacturing of the first encapsulation layer 13 is more convenient, and the connection structure between the protrusion 131 and the wrapping portion 132 is more stable and reliable.

[0144] In some embodiments, the second encapsulation layer 14 may cover the first encapsulation layer 13, including a covering portion 132 and a protrusion 131. In this case, the outer surface of the second encapsulation layer 14 facing away from the first encapsulation layer 13 can be a complete plane, and the outer surface 141 of the second encapsulation layer is used to contact the skin of the wrist. In this embodiment, the outer surface 141 of the second encapsulation layer covers the protrusion 131, and the protrusion 131 is covered by the second encapsulation layer 14, which is a hidden design. In this case, since the outer surface 141 of the second encapsulation layer is a complete plane, the outer surface 141 of the second encapsulation layer has better fit with the user's skin, and the contact area is larger, so that the user feels less pressure when wearing the pressure detection module 30. In addition, the protrusion 131 can also be protected by the first encapsulation layer 13, and the protrusion 131 does not directly contact the user's skin, making it more comfortable for the user to wear.

[0145] In this embodiment, the minimum distance between the outer surface 141 of the second encapsulation layer and the protrusion 131 is less than or equal to 0.5 mm. The small distance between the protrusion 131 and the outer surface 141 of the second encapsulation layer, meaning the thickness of the portion of the protrusion 131 covered by the second encapsulation layer 141 is small, helps ensure the sensitivity of the protrusion 131 in detecting pressure and also reduces pressure on the user's skin. The minimum distance between the outer surface 141 of the second encapsulation layer and the protrusion 131 is generally located between the top of the protrusion 131 facing away from the circuit board and the outer surface 141 of the second encapsulation layer.

[0146] In some embodiments, the pressure detection component 1 may have a vent 15, which is offset from the pressure sensor 12 and can penetrate the first circuit board 11, the first encapsulation layer 13, and the second encapsulation layer 14. In this embodiment, the vent 15 allows air to pass through, improving the breathability of the pressure detection component 1 and reducing the risk of the second encapsulation layer 14 adhering to the skin, thereby improving user comfort. For example, the diameter of the vent 15 may be less than or equal to 1 mm. There may be multiple vents 15, and the spacing between the multiple vents 15 may be less than or equal to 5 mm. In other embodiments, the pressure detection component 1 may not have a vent 15.

[0147] Please refer to the following: Figure 2 and Figure 4 , Figure 4 yes Figure 2 The diagram shows the internal structure of the pressure detection component 1 in some other embodiments. Figure 4 The pressure detection component 1 in the embodiment may include Figure 3 The following mainly describes the differences between the two, focusing on the main technical features of the pressure detection component 1 in the embodiment. Most of the technical content that is the same in both will not be repeated.

[0148] In some embodiments, Figure 4 The illustrated embodiments and Figure 3 The main difference in the illustrated embodiment is the arrangement of the pressure sensor 12.

[0149] The pressure sensor 12 includes an electrode 124 and a detection body 122. The electrode 124 is fixedly connected to the detection body 122, and the electrode 124 and the detection surface 121 are located on the same side of the detection body 122. The electrode 124 is located around the detection surface 121, and the electrode 124 is electrically connected to the first circuit board 11 via a bonding wire 16. For example, the detection body 122 is fixedly connected to the surface of the first circuit board 11; one end of the bonding wire 16 is electrically connected to the electrode 124, and the other end is electrically connected to the first circuit board 11, thereby realizing the electrical connection between the detection body 122 and the first circuit board 11.

[0150] For example, the first encapsulation layer 13 may cover the bonding wire 16. In this embodiment, by covering the bonding wire 16 with the first encapsulation layer 13, the bonding wire 16 can be protected. In addition, since the first encapsulation layer 13 has high rigidity, it is also beneficial to ensure reliable electrical connection of the bonding wire 16.

[0151] For example, the protrusion 131 of the first encapsulation layer 13 can be offset from the bonding wire 16. In this case, the protrusion 131 avoids the bonding wire 16, and when the protrusion 131 is pressed, it will not compress the bonding wire 16, which helps to ensure the structural stability of the bonding wire 16, thereby ensuring the reliability of the electrical connection between the pressure sensor 12 and the first circuit board 11.

[0152] Please refer to the following: Figure 2 and Figure 5 , Figure 5 yes Figure 2 The diagram shows the internal structure of the pressure detection component 1 in some other embodiments. Figure 5 The pressure detection component 1 in the embodiment may include Figure 3 The following mainly describes the differences between the two, focusing on the main technical features of the pressure detection component 1 in the embodiment. Most of the technical content that is the same in both will not be repeated.

[0153] In some embodiments, Figure 5 The illustrated embodiments and Figure 3 The main difference in the illustrated embodiment lies in the configuration of the first encapsulation layer 13.

[0154] In some examples, a first encapsulation layer 13 covers the pressure sensor 12. The first encapsulation layer 13 includes a wrapping portion 132 and a protrusion 131 fixed to the wrapping portion 132. The wrapping portion 132 covers the pressure sensor 12. In some examples, the wrapping portion 132 may be generally a thin film layer, and may three-dimensionally encapsulate the pressure sensor 12 around the portion of the pressure sensor 12 exposed relative to the first circuit board 11, with a small connection area between the wrapping portion 132 and the first circuit board 11. When multiple pressure sensors 12 are present, each wrapping portion 132 can be independent of the others.

[0155] In some examples, the second encapsulation layer 14 covers the first encapsulation layer 13, and the second encapsulation layer 14 is connected to the first circuit board 11. In this case, the first encapsulation layer 13 is essentially wrapped by the first circuit board 11 and the second encapsulation layer 14. In this embodiment, the first encapsulation layer 13 has high rigidity and is used to protect the pressure sensor 12. The force on the protrusions 131 of the first encapsulation layer 13 can be directly transmitted to the detection surface 121 of the pressure sensor 12. The second encapsulation layer 14 then encapsulates and protects the first encapsulation layer 13.

[0156] Please refer to the following: Figure 2 and Figure 6 , Figure 6 yes Figure 2 The diagram shows the internal structure of the pressure detection component 1 in some other embodiments. Figure 6 The pressure detection component 1 in the embodiment may include Figure 3 The following mainly describes the differences between the two, focusing on the main technical features of the pressure detection component 1 in the embodiment. Most of the technical content that is the same in both will not be repeated.

[0157] In some embodiments, Figure 6 The illustrated embodiments and Figure 3 The main difference in the illustrated embodiment lies in the arrangement of the protrusion 131.

[0158] In some examples, the first encapsulation layer 13 may include a covering portion 132 and a protrusion 131. The protrusion 131 has a contact surface 1311 on the side facing away from the pressure sensor 12. The contact surface 1311 may be exposed relative to the second encapsulation layer 14 and is used to contact the user's wrist. The contact surface 1311 may be entirely or partially exposed relative to the second encapsulation layer 14. In this embodiment, by exposing the contact surface 1311 of the protrusion 131 relative to the second encapsulation layer 14, the protrusion 131 can directly contact the user's wrist, which is beneficial for improving the detection sensitivity and accuracy of the pressure sensor 12 and providing a better user experience.

[0159] In some examples, the outer surface of the second encapsulation layer 14 facing away from the first encapsulation layer 13 is flat, and this flat surface is used to contact the user's wrist; the contact surface 1311 and the outer surface 141 of the second encapsulation layer are flush and form a complete surface. In this embodiment, since the contact surface 1311 is flush with the outer surface of the second encapsulation layer 14, and the contact surface 1311 and the outer surface 141 of the second encapsulation layer form a complete plane, the pressure detection component 1 can not only enable the pressure sensor 12 to have high detection sensitivity and detection accuracy, but also reduce the pressure on the user's skin by contacting the user's skin through a complete plane, resulting in less pressure when the user wears it, thereby improving wearing comfort.

[0160] The protrusion 131 may be in the shape of a frustum; or the protrusion 131 may be in the shape of a frustum or a pyramid, etc., and the embodiments of this application do not strictly limit this.

[0161] It is understandable that, in some embodiments, Figure 6 The pressure sensor 12 and its connection structure with the first circuit board 11 in the embodiment can also be adopted. Figure 3 The design scheme in the embodiment.

[0162] Please refer to the following: Figure 2 and Figure 7 , Figure 7 yes Figure 2 The diagram shows a partial structure of the pressure detection component 1 in some embodiments. Figure 7 Pressure detection component 1 can be adopted Figures 3 to 6 The structure in the illustrated embodiment, Figure 7 The diagram mainly illustrates the relative positional relationship between the multiple pressure sensors 12 and multiple vent holes 15 of the pressure detection component 1 and the first circuit board 11.

[0163] In some embodiments, the number of pressure sensors 12 is multiple, and the multiple pressure sensors 12 are arranged at intervals. In this embodiment, the multiple pressure sensors 12 can collectively form a larger detection area, giving the pressure detection component 1 a larger detection area and thus better detection adaptability. In some examples, the pressure detection component 1 can also adapt to more detection scenarios and detection requirements through the cooperation between the multiple pressure sensors 12.

[0164] In one embodiment, multiple pressure sensors 12 can be arranged in multiple rows, with adjacent rows of pressure sensors 12 staggered. The row direction of the multiple pressure sensors 12 arranged in rows can be parallel to the pressure detection module 30 (see reference). Figure 1 The length direction of the wristband 20 (see reference) is aligned with the wristband 20. Figure 1 The length extension direction of the pressure sensor 12 is set. For example, the pressure sensor 12 in the first row is adjacent to the pressure sensor 12 in the second row. In the vertical direction of the row direction, the center of the pressure sensor 12 in the second row is offset from the center of the pressure sensor 12 in the first row and is aligned with the position between the centers of the two pressure sensors 12 in the first row.

[0165] In this embodiment, since the pressure sensors 12 in adjacent rows are staggered, a larger area coverage can be achieved by setting a relatively small number of pressure sensors 12, and a denser arrangement of detection points in the row direction of the multiple pressure sensors 12. Therefore, the pressure detection component 1 can achieve pressure detection over a larger area. In addition, since the row direction of the multiple pressure sensors 12 is parallel to the length extension direction of the wristband, it can surround the user's wrist circumference when wearing the wrist-worn device, enabling detection over a larger area of ​​the user's wrist circumference.

[0166] For example, the length and width of the pressure sensor 12 can both be less than or equal to 1 mm, the spacing between adjacent pressure sensors 12 in the same row can be less than or equal to 1.5 mm, and the row length of multiple pressure sensors 12 in each row can be less than or equal to 10 mm.

[0167] In some usage scenarios, such as static scenarios, when a user wears the wrist-worn device 100, each pressure sensor 12 can be tested and analyzed individually to determine the pressure sensor 12 with the best signal, and that pressure sensor 12 can be used for testing. When the signal of the pressure sensor 12 deteriorates, other pressure sensors 12 with better signals can be searched for and testing can continue. In this scenario, by selecting a single pressure sensor 12 with a good detection signal for testing, the power consumption of the detection can be reduced while maintaining better detection accuracy, resulting in energy savings.

[0168] In some usage scenarios, such as nighttime scenarios, when a user wears the wrist-worn device 100, the user's wrist movements are generally less. The pressure sensors 12 that can measure signals can be detected and confirmed at regular intervals. Signal detection can be performed through these pressure sensors 12. Detection by multiple pressure sensors 12 at the same time can increase the stability of the signal.

[0169] In some usage scenarios, such as daytime scenarios, when a user wears the wrist-worn device 100, the user's wrist may move a lot. When there is a need for detection, all or most of the pressure sensors 12 can be used for detection at the same time, and the signal can be enhanced through signal fusion processing to achieve more accurate detection.

[0170] Please see Figure 8 , Figure 8 yes Figure 2 The diagram shows a partial structure of the pressure detection component 1 in some other embodiments. Figure 8 Pressure detection component 1 can be adopted Figures 3 to 6 The structure in the illustrated embodiment, Figure 8 The diagram mainly illustrates the relative positional relationship between the multiple pressure sensors 12 and multiple vent holes 15 of the pressure detection component 1 and the first circuit board 11.

[0171] In some embodiments, the multiple pressure sensors 12 can be arranged in an array. In this case, the multiple pressure sensors 12 arranged in an array can collectively form a larger detection area, giving the pressure detection component 1 a larger detection area and thus better detection adaptability.

[0172] For example, multiple pressure sensors 12 can be arrayed in multiple rows and columns, with the row and column directions perpendicular and the row and column spacing equal, so that the multiple pressure sensors 12 are distributed in a rectangular plane. The row direction of the multiple pressure sensors 12 can be parallel to the wristband 20 (see reference). Figure 1 The length extension direction of the pressure sensors 12; the column direction of the multiple pressure sensors 12 can be parallel to the wristband 20 (see reference). Figure 1 The width direction of ).

[0173] In this embodiment, since multiple pressure sensors 12 are arranged in an array, the arrangement of pressure sensors 12 is more regular, which facilitates the detection of pressure by pressure detection component 1; and by setting a relatively small number of pressure sensors 12, a larger area of ​​coverage can be achieved. Therefore, pressure detection component 1 can achieve pressure detection over a larger area and can perform detection over a larger range in the circumferential direction of the wrist.

[0174] For example, the width and length of the pressure sensor 12 can both be less than or equal to 1 mm, and the row spacing and column spacing of the multiple pressure sensors 12 can both be less than 0.25 mm; the row length of the multiple pressure sensors 12 is less than or equal to 10 mm.

[0175] In other embodiments of this application, multiple pressure sensors 12 are arranged in a row and spaced apart from each other. Multiple pressure sensors 12 can be arranged in a row; in the wrist-worn wearable device 100, multiple pressure sensors 12 can be arranged in a row along the length of the wristband 20. Multiple pressure sensors 12 can achieve a larger range of detection in the circumferential direction of the user's wrist with a smaller number. For example, the width of the pressure sensor 12 can be less than or equal to 1 mm, the spacing between adjacent pressure sensors 12 can be less than 0.25 mm, and the total length of the multiple pressure sensors 12 arranged in a row can be less than or equal to 10 mm.

[0176] Please refer to the following: Figure 2 , Figure 3 and Figure 9 , Figure 9 yes Figure 2 The diagram shows the structure of the pressurization component 2 in some embodiments.

[0177] In some embodiments, the pressurizing component 2 may include a fixed member 21 and a movable member 22. The movable member 22 is mounted on the fixed member 21, and the movable member 22 and the fixed member 21 are movably connected and can move relative to each other along a first direction. The pressure detection module 30 can be mounted on the wristband 20 via the fixed member 21. The pressurizing component 2 and the pressure detection component 1 are stacked, and the pressure detection component 1 can be located on the side of the movable member 22 facing away from the fixed member 21. The pressurizing component 2 moves relative to the fixed member 21 along the first direction via the movable member 22, pushing the first circuit board 11 and the pressure sensor 12 to move along the first direction.

[0178] Generally, the pressure sensor 12 and the first circuit board 11 are positioned facing the user's wrist in the wearable device. Since the pressure sensor 12 needs to press against the skin of the wrist to detect pressure, when the first direction is perpendicular to the detection area of ​​the user's wrist skin that the pressure sensor 12 contacts, the pressure sensor 12 presses against the detection area in a direction perpendicular to the detection area, thereby achieving higher detection accuracy.

[0179] For example, the first direction is perpendicular to the surface of the first circuit board 11. In this embodiment, the first circuit board 11 of the pressure detection component 1 is perpendicular to the thickness direction of the pressure detection component 1. Therefore, the movable member 22 pushes the pressure sensor 12 along the thickness direction parallel to the pressure detection component 1, so that the pressure sensor 12 can press against the skin of the wrist in a direction perpendicular to or nearly perpendicular to the skin of the wrist, thereby achieving more accurate detection of pressure pulse waves.

[0180] The power source for the pressurization component 2 to drive the moving part 22 to move relative to the fixed part 21 is not strictly limited. For example, it can be hydraulically driven, or it can be gas-driven or electrically driven.

[0181] Please refer to the following: Figure 9 and Figure 10 , Figure 10 yes Figure 9 The partial structural diagram of the pressurization component 2 shown is an internal structural diagram in some embodiments.

[0182] In some embodiments, the fixing member 21 and the movable member 22 can be connected in a nesting relationship. For example, the fixing member 21 has a first nesting portion 211, and the movable member 22 has a second nesting portion 221. The first nesting portion 211 and the second nesting portion 221 are nested and movably connected along a first direction. The nesting direction of the fixing member 21 and the movable member 22 is also the direction of their relative movement. The fixing member 21 and the movable member 22 can be cylindrical structures that nest together and are slidably connected. In other embodiments, the fixing member 21 and the movable member 22 can also be nested together through a prism structure or other shaped sleeve-like structures.

[0183] In this embodiment, the interlocking fixing member 21 and the movable member 22 are easy to install and facilitate the guidance of the relative movement direction of the fixing member 21 and the movable member 22. This makes it easy for the pressure direction to deviate when the movable member 22 pushes the pressure sensor 12 against the user's wrist, thereby effectively ensuring the detection accuracy of the pressure sensor 12.

[0184] For example, one of the first fitting portion 211 and the second fitting portion 221 is provided with a guide groove 2111 and the other is provided with a guide block 2211. The guide block 2211 is slidably connected to the guide groove 2111, and the sliding direction is parallel to the first direction (also parallel to the Z direction). In some examples, the first fitting portion 211 is fitted inside the second fitting portion 221. The outer wall of the first fitting portion 211 may have a guide groove 2111, and the inner wall of the second fitting portion 221 may be provided with a guide block 2211. Both the guide groove 2111 and the guide block 2211 extend along the first direction, and the guide groove 2111 and the guide block 2211 are slidably connected. Alternatively, a guide block can be provided on the outer wall of the first fitting part 211, and a guide groove can be provided on the inner wall of the second fitting part 221. Both the guide groove and the guide block extend along the first direction (also parallel to the Z direction), and the guide groove and the guide block can be slidably connected. Alternatively, a first guide groove and a first guide block can be provided simultaneously in the first fitting part 211, and a second guide groove and a second guide block can be provided correspondingly in the second fitting part 221. The first guide groove and the second guide block are slidably connected, and the first guide block is slidably connected to the second guide groove. This embodiment does not strictly limit this.

[0185] In this embodiment, by providing a guide groove 2111 and a guide block 2211 between the first fitting part 211 and the second fitting part 221, and making their relative sliding direction parallel to the first direction, the second fitting part 221 moves relative to the first fitting part 211 along the first direction, and can be circumferentially limited in the circumferential direction, so that the relative movement direction between the second fitting part 221 and the first fitting part 211 is more accurate, the driving direction of the pressurizing component 2 on the pressure detection component 1 is more accurate, and the detection of the pressure detection component 1 is more precise.

[0186] The guide grooves 2111 and guide blocks 2211 can be designed in groups to form a guide structure; for example, the guide grooves 2111 and guide blocks 2211 can be set in a one-to-one correspondence. For instance, multiple guide structures can be formed between the fixed member 21 and the movable member 22, and these multiple guide structures can be arranged at intervals along the circumference of the fixed member 21. In this case, the multiple guide structures can guide together, reducing the positional offset of the movable member 22 during its movement relative to the fixed member 21 and improving the accuracy of the movable member 22's movement. In some examples, the multiple guide structures can be evenly arranged (i.e., equally spaced) along the circumference of the fixed member 21.

[0187] For example, the number of guide structures can range from 2 to 6 sets, and may include 2 sets or 6 sets. In this case, the number of guide structures can provide more accurate guidance for the moving part 22, and also simplify the structure of the pressurizing assembly 2.

[0188] In some embodiments, the fixing member 21 and the movable member 22 can be an integral structure or both can be separate structures. For example, for ease of installation, the movable member 22 can be set as a separate structure. The movable member 22 can include a first part and a second part. After fitting the fixing member 21 and the first part of the movable member 22 together, the second part of the movable member 22 is then connected to the first part of the movable member 22 to form an integral structure.

[0189] Please refer to the following: Figure 2 , Figure 9 and Figure 11 , Figure 11 yes Figure 9 Top view of pressurization component 2 shown.

[0190] In some embodiments, the pressure component 2 may be secured to the wristband 20 of the wrist-worn device 100 (see reference). Figure 1 The pressure assembly 2 can also be movably connected to the wristband 20 of the wrist-worn wearable device 100. For example, the pressure assembly 2 further includes a sliding guide rail 23, which is fixed to the side of the fixing member 21 facing away from the movable member 22. The sliding guide rail 23 is used to thread the wristband 20 of the wrist-worn wearable device 100 through it. The sliding guide rail 23 can be sleeved on the wristband 20 and slidably connected to it. The sliding direction of the sliding guide rail 23 is its length direction, which is parallel to the X-direction; that is, the length direction of the sliding guide rail 23 is the same as the length extension direction (X-direction) of the wristband 20.

[0191] In this embodiment, by sliding the sliding guide 23 relative to the wristband 20, the position of the sliding guide 23 relative to the wristband 20 is adjusted, thereby adjusting the relative position of the pressure component 2 and the wristband 20, and thus adjusting the position of the pressure detection component 1, so that the pressure sensor 12 can be basically aligned with the artery in the wrist, thereby improving the detection accuracy of the wrist-worn device 100.

[0192] In some examples, the sliding guide 23 forms a sliding cavity 231, the width of which can be adapted to the width of the wristband 20, and the thickness of which can be adapted to the thickness of the wristband 20. This allows the sliding guide 23 to be stably mounted on the wristband 20 and to move relative to the wristband 20, ensuring the stability and slidability of the connection between the pressure assembly 2 and the wristband 20. Specifically, the width direction of the sliding guide 23 is parallel to the Y-direction, meaning the width direction of the sliding guide 23 is the same as the width direction of the wristband 20; the thickness direction of the sliding guide 23 is parallel to the Z-direction, meaning the thickness direction of the sliding guide 23 is the same as the thickness direction of the wristband 20.

[0193] In other examples, the width of the sliding guide 23 may be slightly smaller than the width of the wristband 20, and / or the thickness of the sliding guide 23 may be slightly smaller than the thickness of the wristband 20, so that there is damping between the wristband 20 and the inner wall of the sliding guide 23 to reduce the sway between the sliding guide 23 and the wristband 20, making it easy for the user to adjust the position of the sliding guide 23 relative to the wristband 20, thereby ensuring a stable connection between the pressure assembly 2 and the wristband 20.

[0194] In some embodiments, the pressure assembly 2 may further include a clamping member 24, which is fixedly connected to the fixing member 21. By providing the clamping member 24, it is detachably connected to the wristband 20, allowing the pressure assembly 2 to be detachably connected to the wristband 20 for easy adjustment of its position. The clamping member 24 may be fixed to one side of the fixing member 21, and the arrangement direction of the clamping member 24 and the fixing member 21 may be parallel to the sliding direction of the sliding guide rail 23, thereby parallel to the length extension direction of the wristband 20. The fixing member 21 and the clamping member 24 may be located inside the wristband 20. For example, when the wristband 20 is made of nylon, the clamping member 24 may be Velcro, which is easy to repeatedly adhere to and remove from the wristband 20. When it is necessary to move the pressure component 2, the clamping member 24 can be separated from the wristband 20 first, the pressure component 2 can be adjusted to a suitable position, and then the clamping member 24 can be fixedly connected to the wristband 20 to fix the position of the pressure component 2 and prevent it from loosening. In some other embodiments, the clamping member 24 and the wristband 20 can also be connected by a snap-fit ​​connection, magnetic connection, or other connection structures. For example, when the main body of the wristband 20 is made of steel, the clamping member 24 can be a magnet. The clamping member 24 can be magnetically attached to the wristband 20 to achieve a fixed connection between the pressure component 2 and the wristband 20. When it is necessary to move the pressure component 2, the clamping member 24 can be separated from the wristband 20 first, the pressure component 2 can be adjusted to a suitable position, and then the clamping member 24 can be fixedly connected to the wristband 20 to fix the position of the pressure component 2 and prevent it from loosening.

[0195] In some embodiments, the power source for the pressurizing component 2 to drive the movable part 22 to move relative to the fixed part 21 can be a gas source. In this case, the pressurizing component 2 can also be provided with an air inlet 25. In this embodiment, the air inlet 25 can be connected to a gas pipeline outside the pressurizing component 2 to receive external gas as the power source for the pressurizing component 2. The air inlet 25 can be installed on the side of the fixed part 21 facing away from the movable part 22 and connected to the fixed part 21. The air inlet 25 can be exposed relative to the fixed part 21 to facilitate communication with a gas pipeline outside the pressurizing component 2.

[0196] The following provides examples of the fixed component 21, the movable component 22, and the driving structure of the movable component 22.

[0197] Please see Figure 12 , Figure 12 yes Figure 9 The diagram shows the internal structure of the pressurization component 2 in some embodiments.

[0198] In some embodiments, the fastener 21 may include the first fitting portion 211 and the fixing portion 212 described above. The fixing portion 212 is connected to one end of the first fitting portion 211, and the other end of the first fitting portion 211 may be a first open end 213. The movable member 22 may include the second fitting portion 221 and the pushing portion 222 described above. The pushing portion 222 is connected to one end of the second fitting portion 221, and the other end of the second fitting portion 221 may be a second open end 223. The second fitting portion 221 is fitted onto the first fitting portion 211, and the pushing portion 222 and the fixing portion 212 are disposed opposite to each other. At this time, the pushing portion 222 faces the first open end 213, and the fixing portion 212 faces the second open end 223.

[0199] For example, the pressurizing assembly 2 forms a driving air chamber 210 between the fixed part 212 and the pushing part 222. By inflating the driving air chamber 210, the pushing part 222 can move relative to the fixed part 212. At this time, the movable member 22 moves along the first direction to push the pressure detection assembly 1 to move. For example, the air inlet 25 of the pressurizing assembly 2 can pass through the fixed part 212, and one end of the air inlet 25 is connected to the driving air chamber 210, so that gas can enter the driving air chamber 210 from the air inlet 25.

[0200] In this embodiment, the pressurizing component 2 is equipped with a driving air chamber 210, and air is supplied from the air source to the driving air chamber 210 to drive the moving part 22. Compared with the solution of using mechanical structure drive (such as rack and pinion slider transmission), the driving structure design of this embodiment is more flexible and smaller in size, which is conducive to the miniaturization design of the pressurizing component 2 and the pressure detection module 30.

[0201] In some embodiments, the pressurization component 2 may further include an airbag 26a, which is mounted between the fixing part 212 and the pushing part 222, and the driving air chamber 210 is located inside the airbag 26a. In other words, the driving air chamber 210 is formed in the airbag 26a by the internal space of the airbag 26a. The airbag 26a may be connected to the air inlet 25 to facilitate inflation or deflation through the air inlet 25. For example, the airbag 26a may be a stacked airbag 26a, that is, the airbag 26a may be formed by a plurality of interconnected and stacked sub-airbags 261a. The airbag 26a is capable of expanding and contracting at least in a first direction. When the airbag 26a is inflated, the airbag 26a extends along the first direction and pushes the pushing part 222, causing the movable part 22 to move; when the airbag 26a is not inflated, the airbag 26a retracts, and the movable part 22 returns to its original position. At this point, the stacked airbags are easy to assemble, and when inflated, the expansion direction of the airbags 26a is more accurate and the expansion is more reliable through the cooperation of multiple sub-airbags 261a.

[0202] In this embodiment, the airbag 26a is relatively easy to install, and the sealing environment of the driving air chamber 210 formed by the airbag 26a is relatively reliable, which helps to improve the driving reliability of the pressurization component 2. When the airbag 26a retracts, the gas inside the airbag 26a can be released through the air inlet 25, or it can be released in other ways, such as through a controllable air valve located between the driving air chamber 210 and the atmosphere.

[0203] For example, a connecting hole 262a is provided between adjacent sub-airbags 261a. The connecting hole 262a is used to allow gas to flow between adjacent sub-airbags 261a, so that the airbag 26a expands and contracts. The positions of the connecting holes 262a of the multiple sub-airbags 261a can be staggered. For example, the connecting hole 262a on the sub-airbag 261a can be far from the center of the sub-airbag 261a, i.e., the connecting hole 262a is eccentrically positioned; the eccentric directions of adjacent connecting holes 262a can be opposite, so that the connecting holes 262a are staggered. In this case, the gas flows tortuously between the sub-airbags 261a, allowing each sub-airbag 261a to fully expand, thereby making the pushing of the airbag 26a on the moving part 22 more stable and improving the detection accuracy of the pressure detection component 1. In other embodiments, the connecting holes 262a of the multiple sub-airbags 261a can also be aligned, i.e., the multiple connecting holes 262a are linearly arranged. At this time, the gas flows faster between the sub-airbags 261a, and the airbags 26a expand faster, making the pressure detection component 1 detect more quickly.

[0204] In some embodiments, the top surface of the fixing part 212 can be a curved surface, such as an arc surface, so that the shape of the fixing part 212 can be easily adapted to the shape of the wristband 20. The clamping member 24 can be fixed to the side of the fixing part 212, making it easy to connect to the wristband 20.

[0205] In some embodiments, the pressurizing assembly 2 may further include a rolling element 27. The rolling element 27 is located between the first fitting portion 211 and the second fitting portion 221, and contacts both the first fitting portion 211 and the second fitting portion 221. In this embodiment, the rolling element 27 is used to reduce the frictional force of the relative movement between the first fitting portion 211 and the second fitting portion 221, thereby improving the smoothness of the relative movement between the first fitting portion 211 and the second fitting portion 221, reducing the risk of jamming, and making the pressurizing action of the pressurizing assembly 2 more reliable.

[0206] For example, the rolling element 27 may be a spherical ball or a cylindrical ball, etc. The first fitting portion 211 or the second fitting portion 221 is provided with a ball groove 271, and the rolling element 27 is located in the ball groove 271. When the first fitting portion 211 and the second fitting portion 221 move relative to each other, the rolling element 27 rolls or slides on the side wall of the first fitting portion 211 and / or the second fitting portion 221.

[0207] In some examples, the rolling element 27 may be located within the guide structure. For instance, the guide block 2211 of the guide structure may have a ball groove 271, and the rolling element 27 is mounted in the ball groove 271, contacting the groove wall of the guide groove 2111. For example, the second fitting portion 221 may have a guide block 2211 near the second opening end 223, and the guide block 2211 may have a ball groove 271 on its side wall 2112 facing the guide groove of the first fitting portion 211. In this case, the friction between the guide block 2211 and the guide groove 2111 can be reduced, and the structure of the pressure assembly 2 can be made more compact. In other examples, the rolling element 27 may not be located within the guide structure. For example, the outer wall of the first fitting portion 211 near the first opening end 213 may have a ball groove 271, in which case the ball groove 271 faces the inner wall of the second fitting portion 221.

[0208] For example, multiple rolling elements 27 can be provided. These multiple rolling elements 27 can be divided into multiple groups, with at least two groups arranged along the first direction, so that the movable element 22 has at least two points in the first direction relative to the fixed element 21 that reduce friction, resulting in better drag reduction. At least one group of rolling elements 27 may include two or more rolling elements 27 arranged circumferentially at intervals, so that the movable element 22 has at least two points in the circumferential direction relative to the fixed element 21 that reduce friction, making the circumferential resistance of the movable element 22 more uniform and the movement of the movable element 22 more stable.

[0209] For example, the second fitting portion 221 has a guide block 2211 near the second opening end 223. The guide block 2211 has a first ball groove 271 on its side wall 2112 facing the guide groove of the first fitting portion 211. The guide groove 2111 is evenly arranged circumferentially along the first ball groove 271. The first rolling element 27 is installed in the first ball groove 271, and at this time, the rolling element 27 abuts against the first ball groove 271 and the side wall 2112 of the guide groove. The number of first ball grooves 271 can be four, and the number of first rolling elements 27 can also be correspondingly set to four. In addition, the outer wall of the first fitting portion 211 near the first opening end 213 has a second ball groove 271. The second ball groove 271 is aligned with the first ball groove 271 in a first direction, and at this time, the second ball groove 271 faces the inner wall of the second fitting portion 221. The number of second ball grooves 271 can also be four, and the number of second rolling elements 27 can also be correspondingly set to four.

[0210] In some embodiments, the pressurizing assembly 2 may further include an elastic element 28, which elastically connects the first fitting portion 211 and the second fitting portion 221. In this embodiment, the elastic element 28 has a reset function, which is used to keep the movable part 22 in its initial position or return it to its initial position when the pressurizing assembly 2 is not pressurized.

[0211] For example, the elastic member 28 can be located within the guide groove 2111 between the first fitting portion 211 and the second fitting portion 221 to improve the space utilization of the pressurizing assembly 2. For instance, when the guide block 2211 of the second fitting portion 221 is located between the fixed portion 212 and the bottom wall 2113 of the guide groove of the first fitting portion 211, the elastic member 28 can be located between the guide block 2211 of the second fitting portion 221 and the bottom wall 2113 of the guide groove of the first fitting portion 211. The elastic force direction of the elastic member 28 can be the same as the first direction, and the elastic member 28 can apply a resisting force between the first fitting portion 211 and the second fitting portion 221. This resisting force causes the second fitting portion 221 to move closer to the fixed portion 212 to prevent the movable member 22 from disengaging from the fixed portion 21.

[0212] In this embodiment, the movable member 22 can be pushed by gas to move away from the fixed member 21, and the elastic member 28 is compressed. When the movable member 22 is no longer pushed by gas, the elastic member 28 rebounds, causing the movable member 22 to return to its original position. In addition, when the movable member 22 is in the initial position, the elastic member 28 can have a preset resistance force to keep the movable member 22 in the initial position and prevent it from moving or loosening.

[0213] For example, the number of elastic elements 28 can be between 2 and 6, and may include 2 or 6. For instance, the number of elastic elements 28 can be the same as the number of guide structures, with a one-to-one correspondence, or the number of elastic elements 28 can be less than the number of guide structures. This embodiment does not strictly limit this. The elastic element 28 can be a spring or other elastic component.

[0214] In some other embodiments, the elastic element 28 may not be provided. After the pressure component 2 applies pressure to push the pressure detection component 1 to move, the user's wrist is pressed and a rebound force is generated, which drives the pressure detection component 1 to move and pushes the movable part 22 toward the fixed part 21, thereby realizing the reset of the movable part 22.

[0215] Please refer to the following: Figure 2 and Figure 13 , Figure 13 yes Figure 9 The diagram shows the internal structure of another embodiment of the pressurization component 2. Figure 13 The pressure detection component 1 in the embodiment may include Figure 12 The following mainly describes the differences between the two, focusing on the main technical features of the pressure detection component 1 in the embodiment. Most of the technical content that is the same in both will not be repeated.

[0216] In some embodiments, Figure 13 The illustrated embodiments and Figure 12The main difference in the illustrated embodiments lies in the implementation structure of the driving air chamber 210. In some embodiments, the pressurizing assembly 2 further includes an elastic membrane 26b, with the first fitting portion 211 sleeved inside the second fitting portion 221. The elastic membrane 26b seals the first opening end 213 of the first fitting portion 211, and the fixing portion 212, the first fitting portion 211, and the elastic membrane 26b together form the driving air chamber 210. The driving air chamber 210 communicates with the air inlet 25, allowing gas from outside the pressurizing assembly 2 to enter the driving air chamber 210 through the air inlet 25.

[0217] The elastic membrane 26b closes the first opening end 213 and can be close to the pushing part 222. When the driving air chamber 210 is inflated, the elastic membrane 26b deforms under force, protruding away from the fixed part 212, that is, protruding towards the pushing part 222. The elastic membrane 26b supports and pushes the pushing part 222 to move, thereby driving the pushing part 222. When the driving air chamber 210 is depressurized, the elastic membrane 26b can retract under its own elastic force, and the movable part 22 can be reset under the action of the elastic member 28.

[0218] In this embodiment, the elastic membrane 26b has a simple structure and is easy to install; and the elastic membrane 26b is close to the pushing part 222, which facilitates direct movement of the pushing part 222 under gas drive. For example, the material of the elastic membrane 26b can be silicone, the hardness of the elastic membrane 26b can be less than or equal to Shore A5, and the elastic modulus can be less than or equal to 50 kPa, so that the elastic membrane 26b has good deformability.

[0219] Please continue reading. Figure 14 , Figure 14 yes Figure 9 An internal structural diagram of another embodiment of the pressurization component 2 shown; Figure 14 The pressure detection component 1 in the embodiment may include Figure 12 The following mainly describes the differences between the pressure detection component 1 and the embodiment, focusing on most of their technical features. The common technical aspects will not be elaborated upon. In some embodiments, Figure 14 The illustrated embodiments and Figure 12 The main difference in the embodiment shown lies in the implementation structure of the driving air chamber 210.

[0220] In some embodiments, the pressurizing component 2 may further include a folded membrane 26c, a first fitting portion 211 fitted inside the second fitting portion 221, the folded membrane 26c sealingly connecting the first opening end 213 of the first fitting portion 211, the fixing portion 212, the first fitting portion 211 and the folded membrane 26c together forming a driving air chamber 210, the driving air chamber 210 communicating with the air inlet 25, and gas outside the pressurizing component 2 can enter the driving air chamber 210 through the air inlet 25.

[0221] The folded membrane 26c may include a folded portion 261c and a connecting portion 262c. The folded portion 261c and the connecting portion 262c may be integrally formed structural components. The folded portion 261c is folded and formed and sealed to the first open end 213. The folded portion 261c can be unfolded along a first direction. The connecting portion 262c is disposed corresponding to the pushing portion 222 and can be close to the pushing portion 222. The connecting portion 262c may be circular and may not have deformability. In this case, the folded membrane 26c has good deformability and good reliability.

[0222] In this embodiment, by inflating the driving air chamber 210, the folded portion 261c of the folded membrane 26c unfolds under pressure, and the connecting portion 262c of the folded membrane 26c abuts against and pushes the pushing portion 222 to move. When the driving air chamber 210 is depressurized, the movable part 22 returns to its original position, and drives the folded membrane 26c to return to its original position. The folded membrane 26c is easy to install with the first fitting portion 211, and the folded membrane 26c can undergo folding deformation, but the material of the folded membrane 26c does not undergo tensile deformation, resulting in a long service life and greater reliability.

[0223] Please refer to the following: Figure 2 and Figure 15 , Figure 15 for Figure 9 An internal structural diagram of yet another embodiment of the pressurization component 2 shown; Figure 15 The pressure detection component 1 in the embodiment may include Figure 12 The following mainly describes the differences between the pressure detection component 1 and the embodiment, focusing on most of their technical features. The common technical aspects will not be elaborated upon. In some embodiments, Figure 15 The illustrated embodiments and Figure 12 The main difference in the embodiment shown lies in the implementation structure of the driving air chamber 210.

[0224] In some embodiments, the pressurization assembly 2 further includes a seal 26d, which seals the connection between the first fitting 211 and the second fitting 221; the drive air chamber 210 is formed by the first fitting 211, the second fitting 221 and the seal 26d, and the drive air chamber 210 can communicate with the air inlet 25.

[0225] The sealing element 26d can be a sealing ring. A sealing groove 261d can be opened on the outside of the first opening end 213 of the first fitting part 211. The sealing element 26d is embedded in the sealing groove 261d. At the same time, the sealing element 26d abuts against the inner wall of the second fitting part 221, so that the first fitting part 211 and the second fitting part 221 are sealed and connected, and the two can slide relative to each other.

[0226] In this embodiment, by filling the driving air chamber 210 with air, since the driving air chamber 210 is sealed, the gas will directly drive the pushing member to move. After the driving air chamber 210 is depressurized, the moving member 22 returns to its original position. The sealing member 26d directly forms the driving air chamber 210 by sealingly connecting the first fitting part 211 and the second fitting part 221. The structure is relatively simple and reliable.

[0227] Please refer to the following: Figure 2 , Figures 16 to 17 , Figure 16 yes Figure 2 The diagram shows the internal structure of the conditioning circuit assembly 3 in some embodiments. Figure 17 yes Figure 16 The bottom view of conditioning circuit component 3 shown.

[0228] In some embodiments, the conditioning circuit assembly 3 may include a fixed housing 31. The fixed housing 31 may be fixedly connected to the pressurizing assembly 2, wherein the bottom of the fixed housing 31 may be fixed to the top of the pressurizing assembly 2.

[0229] For example, the pressure assembly 2 can also be detachably connected to the conditioning circuit assembly 3 via snap-fit, screws, magnetism, or other means. For instance, the pressure assembly 2 may further include a first magnetic element 29, which can be mounted on the top surface of the sliding guide rail 23. When the pressure assembly 2 is mounted on the wristband 20, the first magnetic element 29 can be located on the outside of the wristband 20. A second magnetic element 32 can be disposed at the bottom of the fixing housing 31. The second magnetic element 32 is used to connect with the first magnetic element 29 of the pressure assembly 2 (e.g., ...). Figure 11 (As shown) Magnetic connection. The magnetic attraction of the first magnetic element 29 and the second magnetic element 32 fixes the fixed housing 31 and the sliding guide rail 23 together, and fixes the conditioning circuit assembly 3 and the pressure assembly 2 together. When it is necessary to separate the conditioning circuit assembly 3 and the pressure assembly 2, the first magnetic element 29 and the second magnetic element 32 can be separated to separate the conditioning circuit assembly 3 and the pressure assembly 2, so that the user can detach the pressure detection module 30 from the wristband 20 as needed.

[0230] It is understood that in some other embodiments, hinges or similar means can be used to achieve a detachable connection between the fixed housing 31 and the pressurizing assembly 2. In some other embodiments, the conditioning circuit assembly 3 can be non-detachably connected to the pressurizing assembly 2 by means of welding, bonding, or other methods.

[0231] The bottom surface of the fixed housing 31 can directly contact the top surface of the sliding guide rail 23. The bottom surface of the fixed housing 31 can be set as an arc surface, which matches the arc surface of the sliding guide rail 23. When the wrist-worn device 100 is worn on the user's wrist, the wristband 20 is arc-shaped. At this time, the fixed housing 31 is easy to adapt to the wristband 20, making the structure more reasonable.

[0232] In some embodiments, the conditioning circuit assembly 3 also includes a display screen 33. The display screen 33 facilitates independent display of the detected content, making it convenient for users. The display screen 33 can be mounted on the top of the fixed housing 31, allowing users to directly observe it. The display screen 33 can display independently as needed. For example, it can display electrocardiogram curves, or indicators such as heart rate and blood pressure. For instance, the display screen 33 can be a flexible screen to better fit the shape of the top of the fixed housing 31 for installation. For example, a mounting groove can be provided on the top of the fixed housing 31, the size of which can be adapted to the size of the display screen 33, allowing the display screen 33 to be installed within the mounting groove for protection.

[0233] See Figure 16 and Figure 18 , Figure 18 yes Figure 16 The internal structure of the conditioning circuit assembly 3 shown is viewed from another angle.

[0234] The conditioning circuit assembly 3 may further include a second circuit board 34 and a chip 35. The second circuit board 34 may be located inside the fixed housing 31, and the chip 35 is fixed to and electrically connected to the second circuit board 34. In some examples, the chip 35 may process the signal detected by the pressure sensor 12 to obtain the corresponding result, and may also display the result through the display screen 33 to reduce the computational burden on the main body 10. In other examples, the chip 35 may be a simple circuit that does not have data processing capabilities but has data transmission capabilities.

[0235] The conditioning circuit assembly 3 may also include an air inlet pipe 36, which may be located inside the fixed housing 31. The air inlet pipe 36 has an air inlet end 361 and an air outlet end 362. The air inlet end 361 may be located on the side of the fixed housing 31 to facilitate connection with the air guide pipe 403 in the connecting circuit module 40; the air outlet end 362 may be located on the bottom surface of the fixed housing 31 to facilitate connection with the air inlet 25 of the pressurization assembly 2; at this time, the driving air chamber 210 (such as...) Figure 12 (As shown) The connection with the outside world is achieved through the air inlet 25 and the air inlet pipe 36 of the conditioning circuit assembly 3, making full use of the space of the pressurization assembly 2 and with a simple structure.

[0236] For example, the second circuit board 34 can be arranged to avoid the air intake pipe 36, thereby achieving a compact layout and making full use of the thickness space of the conditioning circuit assembly 3, reducing the thickness of the conditioning circuit assembly 3, and facilitating the miniaturization design of the conditioning circuit assembly 3. For example, the second circuit board 34 and the air intake pipe 36 can be arranged side by side, that is, both the second circuit board 34 and the air intake pipe 36 can be fixed on the inner bottom wall of the fixed housing 31; the second circuit board 34 can be arranged outside the distribution area of ​​the air intake pipe 36 on the inner bottom wall of the fixed housing 31 to avoid the air intake pipe 36. In other embodiments, the second circuit board 34 and the air intake pipe 36 can be stacked. For example, the second circuit board 34 is mounted on the inner bottom wall of the fixed housing 31, the air intake pipe 36 is located on the side of the second circuit board 34 away from the bottom wall of the fixed housing 31, and an avoidance hole is opened on the second circuit board 34 for the air intake pipe 36 to pass through, so that the air intake pipe 36 can communicate with the pressurization assembly 2.

[0237] For example, the conditioning circuit assembly 3 may also include a first interface 37 and a second interface 38. Both the first interface 37 and the second interface 38 are electrically connected to the second circuit board 34. The first interface 37 is located on the side of the fixed housing 31 and can be parallel to the air inlet 361 to facilitate docking with the connecting wire 402 in the connecting line module 40. The second interface 38 is located on the other side of the fixed housing 31 to facilitate electrical connection with the pressure detection assembly 1.

[0238] Please refer to the following: Figure 2 , Figures 19 to 20 , Figure 19 yes Figure 2 The diagram shows the internal structure of the pressure detection module 30. Figure 20 yes Figure 19 The diagram shows a structural schematic of the conditioning circuit assembly 3 in some embodiments.

[0239] In some embodiments, the conditioning circuit assembly 3 may further include conditioning wires 39 and wire protection housings 310. The conditioning wires 39 are electrically connected to the second circuit board 34 and the first circuit board 11. The conditioning wires 39 are stretchable wires. The conditioning wires 39 are at least partially located inside the wire protection housings 310, which are used to protect the conditioning wires 39.

[0240] For example, the wire protection shell 310 is located on the side of the pressurizing assembly 2 and can be fixed to the pressurizing assembly 2. The wire protection shell 310 includes a first shell 3101 and a second shell 3102. The first shell 3101 is fixed to the fixing member 21, and the second shell 3102 is fixed to the movable member 22. The first shell 3101 and the second shell 3102 are movably connected to form a telescopic cavity, and the conditioning wire 39 is at least partially located in the telescopic cavity. For example, the first shell 3101 can be formed on the fixing member 21, and the second shell 3102 can be formed on the movable member 22. The first shell 3101 and the second shell 3102 are mated together to form an elongated telescopic cavity.

[0241] In this embodiment, when the fixed member 21 and the movable member 22 move relative to each other, the first shell 3101 and the second shell 3102 move relative to each other synchronously, thereby stretching the telescopic cavity to cooperate with the stretching of the conditioning wire 39 itself, and at the same time protecting the conditioning wire 39.

[0242] For example, the conditioning lead 39 can be a spiral lead with stretchability. The conditioning lead 39 can extend in a wavy shape; for instance, the connecting lead 402 can have multiple bends 391, which can be semi-circular and interconnected, making the conditioning lead 39 generally wavy. In other cases, the conditioning circuit assembly 3 can also include a lead sleeve 311 for encapsulating the conditioning lead 39. The lead sleeve 311 can be made of a flexible material and can elastically expand and contract. When the lead sleeve 311 is subjected to force, it can expand and contract, and the bending arrangement of the conditioning lead 39 can expand and contract synchronously to ensure a reliable electrical connection when the pressure sensor 12 moves, and to provide good protection for the conditioning lead 39.

[0243] For example, there can be multiple conditioning leads 39, and these multiple conditioning leads 39 can be arranged side by side. For example, there are two conditioning leads 39, which are arranged side by side and aligned. The length of the two conditioning leads 39 can be the same, and the bending degree of the bending portion 391 of the two conditioning leads 39 can be the same, so that the extension and contraction of the two conditioning leads 39 are the same, and the two conditioning leads 39 are more consistent when used.

[0244] For example, the telescopic cavity is sealed relative to the outside of the guide protective shell. For instance, a sealing connector can be provided at the connection between the first shell 3101 and the second shell 3102. The sealing connector is slidably connected to the first shell 3101 and / or the second shell 3102, allowing the telescopic cavity to extend and retract, and sealing the telescopic cavity relative to the outside of the protective shell to prevent impurities or liquids from entering the telescopic cavity, thereby extending the service life of the pressurization assembly 2.

[0245] Please refer to the following: Figure 1 and Figure 21 , Figure 21 yes Figure 1 The diagram shows a partial structure of the wristband 20 in some embodiments.

[0246] In some embodiments, the wristband 20 may include a collar 201 and a band body 202. Exemplarily, there may be two collars 201, each connected to one end of the device body 10. The collar 201 may be annular, and the band body 202 may be inserted within the collar 201. Exemplarily, the band body 202 has a fixed end 2021 and a free end 2022. The fixed end 2021 is fixedly connected to one collar 201, and the free end 2022 is inserted through the other collar 201, forming a detachable connection.

[0247] The strap 202 is flexible and can be woven from nylon; in some cases, it can also be made of leather or metal. For example, two fixing posts 2023 are provided at the free end 2022 of the strap 202, and these posts 2023 can protrude outwards. Multiple rows of fixing holes 2024 can be provided in the middle of the strap 202, spaced apart along the length of the strap 202, for example, they can be evenly spaced. The length of the strap 202 is also the length of the wristband 20. Each row can have two fixing holes 2024, and the spacing between the fixing holes 2024 is the same as the spacing between the fixing posts 2023. The fixing posts 2023 are used to engage with the fixing holes 2024, fixing the free end 2022 relative to a certain position in the middle of the strap 202, so that the wristband 20 can be worn on the user's wrist.

[0248] In some embodiments, when the pressure detection module 30 is movably connected to the wristband 20, a sliding guide rail 23 can be provided inside the pressure detection module 30, and the strap body 202 of the wristband 20 passes through the sliding guide rail 23. The strap body 202 can be slidably connected to the sliding guide rail 23 to facilitate adjustment of the position of the pressure detection module 30. The pressure detection module 30 can be fixed relative to the strap body 202 by clamping member 24.

[0249] The wristband 20 may also have an adjustment groove 2025 on its body 202, which extends through the body 202. The length of the adjustment groove 2025 is the same as the length of the body 202. The adjustment groove 2025 is used to pass through the components of the pressure detection module 30, so as to avoid corresponding components (such as the air inlet 25), thereby allowing the pressure detection module 30 to be adjusted on the body 202 for easy detection of pressure pulse waves on the user's wrist.

[0250] Please refer to the following: Figure 1 , Figure 22 and Figure 23 , Figure 22 yes Figure 1The partial structure of the wrist-worn wearable device 100 shown is shown in a top view of some embodiments. Figure 23 yes Figure 1 The partial structure of the wrist-worn wearable device 100 shown is shown in a bottom view of some embodiments.

[0251] In some examples, the pressure detection module 30 can be mounted on the strap 202. The strap 202 passes through the pressurization component 2 of the pressure detection module 30, and the conditioning circuit assembly and pressure detection component 1 of the pressure detection module 30 are located on opposite sides of the strap 202. For example, the pressure sensor 12 of the pressure detection component 1 is located at the bottom of the pressure detection module 30, allowing the pressure sensor 12 to directly contact the user's wrist skin when wearing the wrist-worn device 100; when the conditioning circuit assembly 3 has a display screen 33 (see...), Figure 16 When the pressure is detected, the display screen 33 is located at the top of the pressure detection module 30, making it easy for users to directly view the display screen 33.

[0252] Please refer to the following: Figures 24 to 25 , Figure 24 yes Figure 1 A front view of a portion of the structure of the wrist-worn wearable device 100 shown; Figure 25 yes Figure 24 A side view of a portion of the structure of the wrist-worn wearable device 100 shown.

[0253] In some examples, the connection module 40 is located outside the wristband 20. In this case, when the user wears the wrist-worn device 100, the connection module 40 is away from the user's wrist and does not contact the user's wrist, resulting in a better user experience. Furthermore, the connection module 40 is not affected by the user's wrist skin when it is stretched and deformed, making it easy to stretch and thus making it easy to adjust the position of the pressure detection module 30.

[0254] In some examples, the connection module 40 can be connected to the main body 10 of the device at one end and to the pressure detection module 30 at the other end. In this case, the connection module 40 can be used to achieve an electrical or pneumatic connection between the pressure detection module 30 and the main body 10, depending on the requirements.

[0255] Please refer to the following: Figure 1 , Figure 26 and Figure 27 , Figure 26 yes Figure 1 The diagram shows the structure of the connection module 40. Figure 27 yes Figure 26 The diagram shows the structure of the connecting wire 402.

[0256] In some embodiments, the connection module 40 includes a base 401, a connecting wire 402, and a gas conduit 403. The connection module 40 can be used for electrical connection between the device body 10 and the pressure detection module 30, or for pneumatic connection between the device body 10 and the pressure detection module 30. The connection module 40 can fix the device body 10 and the pressure detection module 30 in place. The connection module 40 is capable of telescoping and deforming, and its telescoping amount can be set to be greater than or equal to 50% of its overall length, for example, greater than or equal to 80%.

[0257] For example, the substrate 401 covers the connecting wire 402 and the air duct 403 for encapsulating the connecting wire 402 and the air duct 403 to protect them. The substrate 401 can be a flexible material, such as silicone.

[0258] For example, there may be multiple connecting wires 402. Connecting wires 402 can be used for power supply or for transmitting electrical signals; this is not strictly limited. Connecting wires 402 can extend in a wavy shape. For instance, connecting wires 402 can have multiple first bends 4021, which can be semi-circular and interconnected, making the connecting wire 402 as a whole wavy shape. In some other embodiments, connecting wires 402 can also extend in a spiral shape; this is not specifically limited here. Therefore, connecting wires 402 can expand and contract in their extension direction, exhibiting a certain amount of deformation. When the connecting wire 402 is subjected to force, it can be stretched, and when the external force is released, it can retract.

[0259] For example, the connecting wire 402 may also have a base layer 4022 and a wire layer 4023, with the base layer 4022 sleeved over the conductive layer. The wire layer 4023 can be a single wire (for ease of installation) or two wires (for space saving); there is no strict limitation. The material of the wire layer 4023 may be copper, and the material of the base layer 4022 may be a polyimide film.

[0260] For example, the air duct 403 is used to deliver gas from the gas source inside the device body 10 to the pressure detection module 30. In this embodiment, the gas is used for active pressurization to press the pressure sensor 12 in the pressure detection module 30 against the wrist. For example, the air duct 403 can also extend in a wavy shape. For instance, the air duct 403 can have multiple second bends 4031, which can be semi-circular and interconnected, making the air duct 403 as a whole wavy shape. In some other embodiments, the air duct 403 can also extend in a spiral shape, which is not specifically limited here. Therefore, the air duct 403 can extend and retract in its extension direction, having a certain amount of deformation. When the air duct 403 is subjected to force, it can be stretched and can retract after the external force is released.

[0261] In this embodiment, the base 401 itself can elastically expand and contract, and the connecting wire 402 and the air duct 403 can also deform and expand based on their shape arrangement. Therefore, the connecting line module 40 as a whole can have tensile properties. When the pressure detection component 1 of the pressure detection module 30 moves, it can drive the connecting line module 40 to expand and contract, so as to ensure a stable electrical connection and air circuit connection between the pressure detection module 30 and the equipment body 10.

[0262] In some other embodiments, the pressurization component 2 may also be driven by a non-air source, in which case the air duct 403 may not be provided for the connection line module 40.

[0263] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other, and any combination of features from different embodiments is also within the scope of protection of this application. In other words, the multiple embodiments described above can be arbitrarily combined according to actual needs. It should also be noted that all the above figures are exemplary illustrations of this application and do not represent the actual size of the product. Furthermore, the dimensional proportions between components in the figures are not intended to limit the actual product of this application.

[0264] The above are merely some embodiments and implementation methods of this application. The scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A pressure detection module (30), applied to a wrist wearable device (100), characterized in that: The pressure detection module (30) comprises: A first circuit board (11); A pressure sensor (12) fixed to a surface of the first circuit board (11) and electrically connected to the first circuit board (11); a first packaging layer (13) fixed to a surface of the first circuit board (11) and covering the pressure sensor (12), the first packaging layer (13) comprising a protrusion (131), the protrusion (131) being located on a side of the pressure sensor (12) facing away from the first circuit board (11) and at least partially facing a detection surface (121) of the pressure sensor (12); and The second packaging layer (14) is fixed to a side of the first packaging layer (13) facing away from the first circuit board (11), and the hardness of the second packaging layer (14) is smaller than the hardness of the first packaging layer (13).

2. The pressure detection module (30) according to claim 1, characterized in that: The hardness of the first encapsulation layer (13) is greater than or equal to Shore A 10; and / or the hardness of the second encapsulation layer (14) is less than or equal to Shore A 5.

3. The pressure detection module (30) according to claim 1 or 2, characterized in that: The second encapsulation layer (14) covers the protruding portion (131), the second encapsulation layer (14) comprises an outer surface (141) arranged away from the first encapsulation layer (13), the outer surface (141) of the second encapsulation layer (14) covers the protruding portion (131), and the minimum spacing between the outer surface (141) and the protruding portion (131) is less than 0.5 millimeters.

4. The pressure detection module (30) according to claim 1 or 2, characterized in that: The second packaging layer (14) comprises an outer surface (141) disposed away from the first packaging layer (13), and the protrusion (131) comprises a contact surface (1311) disposed away from the pressure sensor (12), and the contact surface (1311) is flush with the outer surface (141) of the second packaging layer (14).

5. The pressure detection module (30) according to any one of claims 1 to 4, characterized in that: The pressure sensor (12) comprises a detection body (122) and an electrode (124), and the detection surface (121) is located on the detection body (122); The electrode (124) is located on a side of the detection body (122) facing away from the detection surface (121), and the electrode (124) is fixed to and electrically connected to the first circuit board (11); or, the electrode (124) and the detection surface (121) are located on the same side of the detection body (122), the electrode (124) is located around the detection surface (121), the electrode (124) is electrically connected to the first circuit board (11) via a bonding wire (16), and the first packaging layer (13) covers the bonding wire (16).

6. The pressure detection module (30) according to claim 5, characterized in that: The pressure sensor (12) has a detection cavity (123), the detection cavity (123) is located in the detection body (122), and the opening of the detection cavity (123) is arranged away from the detection surface (121); the first circuit board (11) is provided with a vent hole (111), and the vent hole (111) is connected to the detection cavity (123).

7. The pressure detection module (30) according to any one of claims 1 to 6, characterized in that: The number of the pressure sensors (12) is multiple; the multiple pressure sensors (12) are arranged in rows and spaced apart from each other; or the multiple pressure sensors (12) are distributed in an array; or the multiple pressure sensors (12) are arranged in multiple rows, and the pressure sensors (12) in two adjacent rows are staggered.

8. The pressure detection module (30) according to any one of claims 1 to 4, characterized in that: The pressure detection module (30) is further provided with an air vent (15), the air vent (15) being arranged staggered with respect to the pressure sensor (12), and the air vent (15) penetrating the first circuit board (11), the first packaging layer (13) and the second packaging layer (14).

9. The pressure detection module (30) according to any one of claims 1 to 8, characterized in that: The pressure detection module (30) further comprises a pressurizing component (2), wherein the pressurizing component (2) is located on a side of the first circuit board (11) facing away from the pressure sensor (12); The pressurizing component (2) comprises a fixed part (21) and a movable part (22); the movable part (22) is mounted on the fixed part (21); the pressurizing component (2) moves relative to the fixed part (21) along a first direction via the movable part (22), thereby pushing the first circuit board (11) and the pressure sensor (12) to move along the first direction, wherein the first direction is perpendicular to the surface of the first circuit board (11).

10. The pressure detection module (30) according to claim 9, characterized in that: The fixing member (21) has a first sleeve-fitting portion (211), and the movable member (22) has a second sleeve-fitting portion (221); the first sleeve-fitting portion (211) and the second sleeve-fitting portion (221) are sleeved and movably connected along the first direction.

11. The pressure detection module (30) according to claim 10, characterized in that: The first sleeve part (211) is sleeved inside the second sleeve part (221), one of the first sleeve part (211) and the second sleeve part (221) is provided with a guide groove, and the other is provided with a guide block, the guide block is slidably connected to the guide groove, and the sliding direction is parallel to the first direction.

12. The pressure detection module (30) according to claim 10, characterized in that: The pressurizing component (2) further comprises a rolling element (27), wherein the rolling element (27) is located between the first sleeve-fitting portion (211) and the second sleeve-fitting portion (221), and is in contact with the first sleeve-fitting portion (211) and the second sleeve-fitting portion (221); And / or, the pressurizing assembly (2) further comprises an elastic member (28), wherein the elastic member (28) elastically connects the first sleeve-fitting portion (211) and the second sleeve-fitting portion (221).

13. The pressure detection module (30) according to any one of claims 10 to 12, characterized in that: The fixing member (21) further comprises a fixing portion (212), wherein the fixing portion (212) is connected to one end of the first sleeve-fitting portion (211); the movable member (22) further comprises a pushing portion (222), wherein the pushing portion (222) is connected to one end of the second sleeve-fitting portion (221), and the pushing portion (222) is arranged opposite to the fixing portion (212); The pressurizing component (2) forms a driving air cavity (210) between the fixing portion (212) and the pushing portion (222), and the pushing portion (222) moves relative to the fixing portion (212) by inflating the driving air cavity (210).

14. The pressure detection module (30) according to claim 13, characterized in that: The pressurizing component (2) further comprises an airbag (26a), wherein the airbag (26a) is located between the fixing portion (212) and the pushing portion (222), and the driving air chamber (210) is located inside the airbag (26a).

15. The pressure detection module (30) according to claim 13, characterized in that: The pressurizing component (2) further comprises an elastic membrane (26b), wherein the elastic membrane (26b) is sealingly connected to the other end of the first sleeve portion (211); the driving air cavity (210) is surrounded by the fixed portion (212), the first sleeve portion (211) and the elastic membrane (26b); when the driving air cavity (210) is inflated, the elastic membrane (26b) protrudes in a direction away from the fixed portion (212), and the elastic membrane (26b) abuts against and pushes the pushing portion (222).

16. The pressure detection module (30) according to claim 13, characterized in that: The pressurizing component (2) further comprises a folding membrane (26c), wherein the folding membrane (26c) is sealingly connected to the other end of the first sleeve portion (211); the driving air cavity (210) is surrounded by the fixing portion (212), the first sleeve portion (211) and the folding membrane (26c); when the driving air cavity (210) is inflated, the folded portion of the folding membrane (26c) is opened, and the folding membrane (26c) abuts against and pushes the pushing portion (222).

17. The pressure detection module (30) according to claim 13, characterized in that: The pressurizing component (2) further comprises a sealing member (26d), wherein the sealing member (26d) seals and connects the first sleeve-fitting portion (211) and the second sleeve-fitting portion (221); the driving air cavity (210) is surrounded by the first sleeve-fitting portion (211), the second sleeve-fitting portion (221) and the sealing member (26d).

18. The pressure detection module (30) according to any one of claims 9 to 17, characterized in that: The pressurizing component (2) further comprises a sliding guide rail (23), wherein the sliding guide rail (23) is fixed to a side of the fixing part (21) facing away from the movable part (22), and the sliding guide rail (23) is used for wearing a wristband (20) of a wrist wearable device (100).

19. The pressure detection module (30) according to claim 18, characterized in that: The pressure detection module (30) further comprises a clamp (24), wherein the clamp (24) is fixedly connected to the fixing member (21), and the clamp (24) is used for being detachably connected to the wristband (20) of the wrist wearable device (100).

20. The pressure detection module (30) according to any one of claims 9 to 19, characterized in that: The pressure detection module (30) further comprises a conditioning circuit component (3), wherein the conditioning circuit component (3) is mounted on a side of the pressurizing component (2) facing away from the first circuit board (11); The conditioning circuit assembly (3) comprises a second circuit board (34) and a chip (35), wherein the chip (35) is fixed to and electrically connected to the second circuit board (34), and the second circuit board (34) is electrically connected to the first circuit board (11).

21. The pressure detection module (30) according to claim 13, characterized in that: The fixing member (21) is provided with an air inlet nozzle (25), and the air inlet nozzle (25) is connected to the driving air cavity (210); The pressure detection module (30) further comprises a conditioning circuit component (3), wherein the conditioning circuit component (3) is mounted on a side of the pressurizing component (2) facing away from the first circuit board (11); The conditioning circuit assembly (3) comprises a second circuit board (34) and a chip (35), wherein the chip (35) is fixed to and electrically connected to the second circuit board (34), and the second circuit board (34) is electrically connected to the first circuit board (11); The conditioning circuit assembly (3) further comprises an air inlet pipe (36), wherein the air inlet pipe (36) is in communication with the air inlet nozzle (25).

22. The pressure detection module (30) according to claim 20 or 21, characterized in that: The conditioning circuit assembly (3) further comprises a fixed shell (31) and a display screen (33); the bottom of the fixed shell (31) is fixed to the pressurizing assembly (2), the second circuit board (34) is installed on the inner side of the fixed shell (31), and the display screen (33) is installed on the top of the fixed shell (31).

23. The pressure detection module (30) according to any one of claims 20 to 22, characterized in that: The conditioning circuit assembly (3) further comprises a conditioning wire (39) and a wire protection shell (310); The conditioning wire (39) electrically connects the second circuit board (34) and the first circuit board (11), and the conditioning wire (39) is a stretchable wire; The wire protection shell (310) comprises a first sub-shell (3101) and a second sub-shell (3102); the first sub-shell (3101) is fixed to the fixed part (21); the second sub-shell (3102) is fixed to the movable part (22); the first sub-shell (3101) and the second sub-shell (3102) are movably connected to form a telescopic cavity; the conditioning wire (39) is at least partially located in the telescopic cavity.

24. A wrist wearable device (100), characterized in that: The wrist wearable device (100) comprises: Device body (10); A wristband (20) connected to the device body (10); and The pressure detection module (30) according to any one of claims 1 to 23, wherein the pressure detection module (30) is installed on the wristband (20), and the pressure sensor (12) of the pressure detection module (30) is located on the inner side of the wristband (20).

25. The wrist wearable device (100) according to claim 24, characterized in that: The pressure detection module (30) is movably connected to the wristband (20).

26. The wrist wearable device (100) according to claim 25, characterized in that: The wrist-type wearable device (100) further comprises a connection circuit module (40); the connection circuit module (40) is installed on the outside of the wristband (20), and the two ends thereof are respectively connected to the device body (10) and the pressure detection module (30); the connection circuit module (40) is stretchable.

27. The wrist wearable device (100) according to claim 26, characterized in that: The connecting line module (40) comprises a base (401) and a connecting wire (402); the base (401) is made of a flexible material or an elastic material, the connecting wire (402) is arranged in the base (401), the connecting wire (402) electrically connects the main body and the pressure detection module (30), and the connecting wire (402) is arranged in the base (401) in a wavy or spiral shape.

28. The wrist wearable device (100) according to claim 27, characterized in that: The connection line module (40) further comprises an air duct (403), wherein the air duct (403) is arranged on the base (401) in a wave shape or a spiral shape, and the air duct (403) connects the device body (10) and the pressure detection module (30).

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