Skin-adherent structures and wearable products

Abstract

This disclosure provides a skin-fitting structure and a wearable product. The skin-fitting structure includes a housing component, a skin-fitting part, a sensing part, a driving part, and a control part. The skin-fitting part is circumferentially sealed to the mounting groove and forms a first chamber. The skin-fitting part is flexible. At least one sensing part is provided on the side of the skin-fitting part that is in contact with the skin. The sensing part is used to detect physiological signals of the skin. The driving part is used to drive the skin-fitting part and the sensing part to bulge together in a direction away from the receiving cavity. The control part is electrically connected to the driving part to control the working state of the driving part. Thus, by driving the skin-fitting part and the sensing part to bulge together in a direction away from the receiving cavity, close contact between the sensing part and the human skin can be achieved. Furthermore, the flexible skin-fitting part can adapt to the curved contours and dynamic deformations of the human skin, avoiding problems such as poor local fit and uneven pressure distribution.

Description

Technical Field

[0001] This invention relates to the field of skin-adhesive product technology, and more specifically, to a skin-adhesive structure and a wearable product. Background Technology

[0002] In fields such as smart wearables, skin-adhesive structures serve as the core carriers for physiological signal acquisition. The tightness of their fit with the human skin directly determines the accuracy and stability of physiological signal acquisition, such as heart rate, blood oxygenation, and electromyography. Therefore, achieving precise skin adhesion and stable acquisition of these signals has become a key research direction in the industry.

[0003] Currently, most existing skin-attachment structures employ a simple, rigid fixing design. This rigid fixing structure cannot adapt to the curved contours and dynamic deformations of human skin, easily leading to problems such as poor localized adhesion and uneven pressure distribution. This results in poor contact between the sensor and the skin, causing signal distortion and data acquisition interruptions. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a novel skin-fitting structure and wearable product.

[0005] According to one aspect of the present invention, a skin-adhesive structure is provided, comprising: A housing component having a receiving cavity and a mounting groove on one side; The skin-contact portion is circumferentially sealed to the mounting groove and forms a first chamber; the skin-contact portion is flexible. The sensing part is provided on the side of the skin-contacting part that is in contact with the skin, and the sensing part is used to detect the physiological signals of the skin; The driving part is used to drive the skin-contact part to bulge together with the sensing part in a direction away from the receiving cavity; A control unit is electrically connected to the drive unit to control the operating state of the drive unit.

[0006] Optionally, the drive unit is disposed in the receiving cavity. The drive unit includes a pneumatic motor and a first air pipe. One end of the first air pipe is connected to the pneumatic motor, and the other end of the first air pipe extends into the first chamber. The pneumatic motor can inflate the first chamber through the first air pipe.

[0007] Optionally, when the skin-fitting structure is in the wearing state, a second chamber is formed between the skin-fitting structure and the skin; the drive unit also includes a second air tube, the housing component has a second through hole, one end of the second air tube is connected to the pneumatic motor, and the other end of the second air tube can pass through the second through hole and extend into the second chamber, and the pneumatic motor can draw air from the second chamber through the second air tube.

[0008] Optionally, the control unit includes a first pressure sensor, which is used to detect the pressure in the first chamber to control the operating state of the pneumatic motor.

[0009] Optionally, the control unit further includes a second pressure sensor for detecting the pressure in the second chamber; When the pressure in the second chamber detected by the second pressure sensor is less than or equal to a first predetermined threshold, the pneumatic motor inflates the first chamber through the first air pipe.

[0010] Optionally, when the pressure of the first chamber detected by the first pressure sensor is greater than or equal to a second predetermined threshold, the pneumatic motor stops inflating the first chamber. And / or, when the pressure in the second chamber detected by the second pressure sensor is less than or equal to a third predetermined threshold, the pneumatic motor stops drawing air from the second chamber, wherein the third predetermined threshold is less than the first predetermined threshold.

[0011] Optionally, the control unit is a switch, which has a first pressed state, a second pressed state, and a reset state; When the switch is in the first pressed state, the driving part drives the skin-contact part to bulge together with the sensing part in a direction away from the receiving cavity; When the switch is in the second pressed state, the driving part drives the skin-contact part to retract together with the sensing part in the direction close to the receiving cavity; When the switch is in the reset state, the driving unit stops driving.

[0012] Optionally, the skin-contact portion includes a third housing and a flexible circuit board disposed within the third housing. The third housing has at least one third through hole, and the sensing portion is disposed on the flexible circuit board and can be exposed from the corresponding third through hole.

[0013] Optionally, the control unit includes a first pressure sensor for detecting the pressure in the first chamber, and the third housing has a fourth through hole. The first pressure sensor is disposed on the flexible circuit board and can extend into the first chamber through the fourth through hole. And / or, the control unit further includes a second pressure sensor for detecting the pressure of the second chamber, the third housing having a fifth through hole, the second pressure sensor being disposed on the flexible circuit board and being able to protrude from the fifth through hole, and the second pressure sensor being arranged on the same side as the sensing unit.

[0014] Optionally, the driving part is disposed in the receiving cavity, the mounting groove is an annular groove, the third housing is annular, the flexible circuit board includes an annular body and an extension connected to the annular body, and the sensing part is disposed in the annular body.

[0015] Optionally, the mounting groove includes multiple annular skin-adhesive portions, and the mounting groove includes multiple concentric annular grooves, with each annular groove corresponding to a skin-adhesive portion and sealed to form a first chamber.

[0016] According to another aspect of the present invention, a wearable product is provided, comprising a body portion and at least one of the aforementioned skin-adhesive structures disposed on the body portion.

[0017] Optionally, when the wearable product is in the wearing state, each of the skin-contact structures forms a second chamber between itself and the skin. When the pressure in the second chamber is less than or equal to a first predetermined threshold, the driving unit drives the skin-contact structure to bulge together with the sensing unit in a direction away from the receiving cavity.

[0018] According to another aspect of the present invention, a wearable product is provided, including a cover and the skin-contact structure, the cover being disposed on the outside of the skin-contact structure.

[0019] Optionally, when the wearable product is in the wearing state, a second chamber is formed between the wearable product and the skin. When the pressure of the second chamber is less than or equal to a first predetermined threshold, the driving unit drives the skin-contacting part to bulge together with the sensing part in a direction away from the receiving cavity.

[0020] One technical advantage of the embodiments disclosed herein is that: The skin-adhesive structure provided by the present invention drives the skin-adhesive part and the sensing part to bulge together in the direction away from the receiving cavity through the driving part, so as to achieve close contact between the sensing part and the human skin. The flexible skin-adhesive part can also adapt to the curved contour and dynamic deformation of the human skin, avoiding problems such as local poor adhesion and uneven pressure distribution. This helps to ensure that the sensing part on it can be embedded in the human skin and achieve reliable signal detection.

[0021] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings, which form part of this specification, illustrate embodiments of the invention and, together with the specification, serve to explain the principles of the invention.

[0023] Figure 1 This is an exploded view of a skin-adhesive structure according to an embodiment of the present disclosure; Figure 2 This is a schematic diagram of a skin-adhesive structure according to an embodiment of the present disclosure; Figure 3 yes Figure 2 Cross-sectional view at point YY; Figure 4 This is another schematic diagram of a skin-adhesive structure according to an embodiment of the present disclosure; Figure 5 This is a schematic diagram of a skin-fitting structure according to an embodiment of the present disclosure; Figure 6 yes Figure 5 Cross-sectional view at point ZZ; Figure 7 yes Figure 6 A magnified view of a section at point B in the middle; Figure 8 This is a schematic diagram of a control unit according to an embodiment of the present disclosure; Figure 9 This is a schematic diagram of a flexible circuit board according to an embodiment of the present disclosure; Figure 10 This is another schematic diagram of a flexible circuit board according to an embodiment of the present disclosure; Figure 11 This is a schematic diagram of a skin-adhesive portion according to an embodiment of the present disclosure; Figure 12 This is another schematic diagram of a skin-adhesive portion according to an embodiment of the present disclosure; Figure 13 This is a schematic diagram of the connection between the skin-contact part and the second housing according to an embodiment of this disclosure; Figure 14 This is another schematic diagram of the connection between the skin-contact portion and the second housing according to an embodiment of this disclosure; Figure 15 yes Figure 13 Cross-sectional view at point XX; Figure 16 yes Figure 15 A magnified view of a section at point A in the middle; Figure 17 This is a schematic diagram of the connection between a control unit and a first housing according to an embodiment of the present disclosure; Figure 18 This is a schematic diagram of another skin-adhesive structure according to an embodiment of the present disclosure; Figure 19 yes Figure 18 A sectional view; Figure 20 This is a schematic diagram of a wearable product according to an embodiment of the present disclosure; Figure 21 This is another schematic diagram of a wearable product according to an embodiment of the present disclosure; Figure 22 This is a schematic diagram of another wearable product according to an embodiment of the present disclosure; Figure 23 yes Figure 22 Cross-sectional view at point AA.

[0024] Explanation of reference numerals in the attached figures: 100. Skin-contact structure; 1. First housing; 2. Second housing; 21. Receiving cavity; 22. Mounting groove; 23. Protrusion; 3. Skin-contact part; 31. First chamber; 32. Third housing; 33. Flexible circuit board; 331. Annular body; 332. Extension; 34. First pressure sensor; 35. Second pressure sensor; 4. Sensing part; 5. Driving part; 51. Connecting plate; 52. Pneumatic motor; 53. First air pipe; 54. Second air pipe; 6. Second chamber; 200. Ontology part; 300. Cover. Detailed Implementation

[0025] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0026] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0027] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0028] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0030] The present invention provides a skin-contact structure 100, which can be applied to wearable products such as smartwatches, smart bracelets, smart glasses, and smart headbands, as well as to medical monitoring equipment and other applications that require close contact with human skin to collect physiological signals.

[0031] like Figures 1 to 3 As shown, the skin-adhesive structure 100 provided in this embodiment of the invention includes: The housing component has a receiving cavity 21 and a mounting groove 22 on one side; The skin-contact portion 3 is circumferentially sealed and connected to the mounting groove 22 to form a first chamber 31. The skin-contact portion 3 is flexible. The sensing part 4 is provided on the side of the skin-contacting part 3 that is in contact with the skin. The sensing part 4 is used to detect physiological signals of the skin. Drive unit 5, drive unit 5 is used to drive skin-contact part 3 to drive sensing part 4 to bulge together in a direction away from receiving cavity 21; The control unit is electrically connected to the drive unit 5 to control the operating state of the drive unit 5.

[0032] Specifically, the receiving cavity 21 inside the housing component is mainly used to accommodate the drive unit 5, power supply module, signal transmission module and other structures of the skin-contact structure 100, and can also provide pressure reference and structural support for the first chamber 31.

[0033] like Figure 1 As shown, a mounting groove 22 can be formed on one side of the housing component, for example, the side facing the human skin. The mounting groove 22 can be a concave structure, the shape of which is adapted to the contour of the skin-contact part 3, including but not limited to circular, elliptical, or irregular shapes that conform to the curvature of the human body.

[0034] An annular stepped surface can be designed on the inner wall of the mounting groove 22 to achieve circumferential positioning and sealing connection of the skin-contact part 3.

[0035] The depth of the mounting groove 22 can be designed according to the movement stroke of the skin-contact part 3, and space can be reserved for the skin-contact part 3 to drive the sensing part 4 to move away from the receiving cavity 21.

[0036] like Figure 1 As shown, the skin-adhesive part 3 can be a flexible component, and the material can be skin-friendly soft silicone or medical-grade flexible rubber. It has good elasticity, sealing and biocompatibility, and is non-irritating to human skin in long-term contact. At the same time, it can produce elastic deformation under pressure, adapt to the curved contour and dynamic deformation of human skin, and avoid problems such as poor local adhesion and uneven pressure distribution. This helps to ensure that the sensing part 4 on it can be embedded in human skin and achieve reliable signal detection.

[0037] The edge of the skin-contact portion 3 is circumferentially sealed to the mounting groove 22, for example, by adhesive bonding. Specifically, adhesive can be applied to the corresponding positions of the edge of the skin-contact portion 3 and the mounting groove 22, forming a gapless seal after curing. Figure 3 As shown, after sealing and connecting, the skin-contact part 3 and the mounting groove 22 form a closed first chamber 31. The first chamber 31 is a pressure chamber with variable volume, and its internal pressure can be adjusted by an external air circuit, a micro air pump, or an elastic element.

[0038] The side of the skin-contact portion 3 furthest from the first chamber 31, i.e., the skin-contact side, is a smooth curved surface to adapt to the fit requirements of human skin. Furthermore, at least one mounting position, such as a groove or a boss, is provided on this side surface to fix the sensing unit 4. The shape of the mounting position matches the shape of the sensing unit 4 to ensure that the sensing unit 4 and the skin-contact portion 3 move synchronously without relative displacement.

[0039] The sensing unit 4 is a physiological signal detection element. Depending on the detection requirements, conductive silicone electrodes, biosensors, etc., can be selected to collect physiological signals from human skin, such as electromyography (EMG), electrocardiogram (ECG), and electrodermal signal. The sensing unit 4 is installed on the mounting position of the skin-contact part 3 by means of adhesive bonding, snap-fit ​​fixing, or embedded assembly. Its detection end face protrudes from the skin-contact side surface of the skin-contact part 3 by a certain distance, or is flush with the skin-contact side surface, which can ensure that when the skin-contact part 3 moves, the sensing unit 4 can preferentially or synchronously contact the human skin.

[0040] In addition, the control unit can be electrically connected to the drive unit 5 to control the working state of the drive unit 5, such as controlling the drive unit 5 to start different working states or stop working.

[0041] Specifically, such as Figure 15 and Figure 16 As shown, in the initial setting, the skin-contact part 3 is flush with the surface of the housing component. At this time, the skin-contact part 3 neither bulges nor retracts, which can avoid the impact damage caused by the outward protrusion of the sensing part 4, thereby extending the service life of the skin-contact structure 100. In addition, the flat outer surface can also reduce the feeling of foreign objects before wearing and the risk of snagging, making it easier to store and wear the skin-contact structure 100, and adapting to the usage needs of daily wear scenarios.

[0042] like Figure 3 , 4 and Figure 6 As shown, when the control unit controls the drive unit 5 to be in the first working state, the drive unit 5 can drive the skin-contact part 3 to bulge along the direction away from the receiving cavity 21, that is, the direction close to the human skin, until the sensor part 4 is embedded in the human skin.

[0043] In this way, the sensor 4 can form a tight contact with the human skin without air gaps, which reduces contact impedance and ensures stable acquisition and transmission of physiological signals. Even if the shape of the wearable part is complex, the sensor 4 can still achieve tight contact with the human skin, such as fitting, avoiding signal noise and drift problems caused by poor local contact. This results in a stable baseline and clear characteristic waves of the acquired physiological signals, and improves the signal-to-noise ratio, providing accurate data support for subsequent signal processing and algorithm recognition.

[0044] During this process, the flexible material of the skin-contact part 3 can also adapt to the curved contour of human skin. Even if there are slight protrusions, depressions or curved changes in the wearing area, the skin-contact part 3 can achieve a seamless fit through elastic deformation, thereby driving the sensing part 4 to maintain close contact with human skin and avoiding poor contact caused by the curvature of human skin.

[0045] When the control unit controls the drive unit 5 to be in a non-operating state, the drive unit 5 stops driving the skin-contact part 3. At this time, the skin-contact part 3 and the sensing unit 4 on it remain stationary, and the sensing unit 4 can collect physiological signals.

[0046] When the control unit controls the drive unit 5 to be in the second working state, the drive unit 5 can drive the skin-adhesive part 3 to retract the sensing part 4 thereon along the direction close to the receiving cavity 21, that is, away from the human skin, back to the initial state, so that the sensing part 4 is away from the human skin. At this time, the skin-adhesive structure 100 can be easily removed.

[0047] Thus, in this embodiment of the invention, the skin-adhering structure 100 drives the skin-adhering part 3 and the sensing part 4 to bulge together in the direction away from the receiving cavity 21 through the driving part 5, so as to achieve close contact between the sensing part 4 and the human skin. The flexible skin-adhering part 3 can also adapt to the curved contour and dynamic deformation of the human skin, avoiding problems such as poor local adhesion and uneven pressure distribution, which helps to ensure that the sensing part 4 on it can be embedded in the human skin and achieve reliable signal detection.

[0048] In one embodiment, the drive unit 5 may include a pneumatic motor 52 and a first air pipe 53, one end of which is connected to the pneumatic motor 52 and the other end extends into the first chamber 31. The first working state of the drive unit 5 corresponds to the pneumatic motor 52 inflating the first chamber 31 through the first air pipe 53, the second working state of the drive unit 5 corresponds to the pneumatic motor 52 drawing air from the first chamber 31 through the first air pipe 53, and the non-working state of the drive unit 5 corresponds to the pneumatic motor 52 neither inflating nor drawing air.

[0049] In one embodiment, the drive unit 5 may include a motor and a connecting rod, both located within the first chamber 31, and the motor is capable of driving the connecting rod to extend or retract. A first operating state of the drive unit 5 corresponds to the motor driving the connecting rod to extend to support the skin-contact portion 3; a second operating state of the drive unit 5 corresponds to the motor driving the connecting rod to retract to reset the skin-contact portion 3; and a non-operating state of the drive unit 5 corresponds to the motor stopping its drive of the connecting rod.

[0050] In this way, the skin-adhesive structure 100 can be fixed to the human skin by combining bonding, snap-fit ​​and other fixing methods, thereby ensuring reliable adhesion between the sensing unit 4 and the area to be detected, and avoiding abnormal detection of the sensing unit 4 caused by shaking.

[0051] In one embodiment, when multiple sensing units 4 are provided, each sensing unit 4 can be evenly distributed along the skin-contact side of the skin-contact portion 3, and the detection end face of each sensing unit 4 is on the same plane. This ensures that all sensing units 4 can synchronously and tightly adhere to the human skin when the driving unit 5 is driven, avoiding detection abnormalities caused by poor contact of some sensing units 4. In addition, the detection end face of the sensing unit 4 can be coated with conductive gel or have a micro-bump structure, which can reduce its contact impedance with the human skin, thereby improving the signal acquisition accuracy.

[0052] like Figure 3 and Figure 6 As shown, the receiving cavity 21 and the first chamber 31 are independent and separately sealed. The receiving cavity 21 effectively isolates external moisture, dust, sweat, and other corrosive substances, protecting the internal control unit, power supply module, and other structures, and preventing circuit failures caused by environmental factors. The high airtightness of the first chamber 31 ensures stable pressure maintenance, reduces the workload of the drive unit 5, extends the lifespan of the skin-contact structure 100, and prevents sweat and dust from entering the first chamber 31 and affecting pressure detection and drive performance. Compared to the open skin-contact structure 100, the sealed design of this invention can adapt to complex operating environments such as sweating and humidity, enhances the environmental anti-interference capability of signal acquisition, and helps to avoid signal interruption or distortion caused by external factors.

[0053] In one embodiment, the mounting groove 22 can be set as a stepped groove, so that a sealed first chamber 31 can be easily formed after the skin-contact part 3 is installed. Without increasing the overall volume of the housing component, sufficient movement stroke can be reserved for the skin-contact part 3, which helps to reduce the overall thickness and space occupied by the skin-contact structure 100, and adapts to the demanding installation space requirements of wearable products, medical monitoring equipment and other scenarios.

[0054] Optionally, the drive unit 5 is located in the receiving cavity 21. The drive unit 5 includes a pneumatic motor 52 and a first air pipe 53. One end of the first air pipe 53 is connected to the pneumatic motor 52, and the other end of the first air pipe 53 extends into the first chamber 31. The pneumatic motor 52 can inflate the first chamber 31 through the first air pipe 53.

[0055] like Figure 1 , Figure 8 and Figure 17 As shown, the drive unit 5 may also include a connecting plate 51. The connecting plate 51 serves as a support structure for the drive unit 5, providing a stable mounting support base for components such as the pneumatic motor 52 and the first air pipe 53, which helps ensure the positional stability of each component during air pressure transmission. The pneumatic motor 52, also known as the inflation / deflation motor, has one drive end connected to one end of the first air pipe 53, allowing the inflation / deflation motor to inflate or deflate the first chamber 31 through the first air pipe 53, thereby adjusting the pressure of the first chamber 31.

[0056] Specifically, when the drive unit 5 is in the first working state, the pneumatic motor 52 is in the inflation mode. The pneumatic motor 52 supplies air to the first air pipe 53, and the air enters the first chamber 31 through the first air pipe 53, thereby pressurizing the first chamber 31. When the pressure in the first chamber 31 exceeds the external pressure, the pressure difference can drive the skin-contact part 3 to inflate the sensing part 4 together.

[0057] Connecting one end of the first air tube 53 to the drive end of the pneumatic motor 52 and extending the other end of the first air tube 53 into the first chamber 31 can form a short-path air pressure transmission channel, which helps to reduce the loss and leakage in the air pressure transmission process, and improves the response speed and accuracy of the pressure control of the first chamber 31, ensuring the timeliness and stability of the movement of the skin-contact part 3.

[0058] Optionally, when the skin-fitting structure 100 is in the wearing state, a second chamber 6 is formed between the skin-fitting structure 100 and the skin; the drive unit 5 also includes a second air tube 54, the housing component has a second through hole, one end of the second air tube 54 is connected to the pneumatic motor 52, and the other end of the second air tube 54 can pass through the second through hole and extend into the second chamber 6, and the pneumatic motor 52 can draw air from the second chamber 6 through the second air tube 54.

[0059] Specifically, the skin-adhesive structure 100 may have a pressure area and a negative pressure area, with the negative pressure area adjacent to the pressure area, and the skin-adhesive part 3 located in the pressure area.

[0060] The pressurized area corresponds to the sensing area of ​​the skin-contact portion 3, and the negative pressure area corresponds to the remaining areas. After the skin-contact structure 100 is worn onto human skin, the pressurized area can adhere to the human skin, while the negative pressure area can form a second chamber 6 with the human skin. At this time, by reducing the pressure in the second chamber 6, the skin-contact structure 100 can be adsorbed and fixed onto the human skin, thereby achieving a stable wearing of the skin-contact structure 100.

[0061] The second through-hole can be located within the mounting groove 22 of the housing component, allowing the skin-fitting structure 100 to connect the receiving cavity 21 and the second chamber 6 after being worn on the skin. The second through-hole provides precise positioning for the second air tube 54, enabling the second chamber 6 to release air through the second air tube 54, thereby reducing the pressure in the second chamber 6 and adhering the skin-fitting structure 100 to the skin, thus achieving a stable fit.

[0062] Specifically, after the skin-fitting structure 100 is worn on human skin, the pneumatic motor 52 can draw air from the second chamber 6 through the second air tube 54 to continuously reduce the pressure of the second chamber 6 until the skin-fitting structure 100 is adsorbed and fixed on human skin, thereby achieving stable wearing of the skin-fitting structure 100.

[0063] When it is necessary to remove the skin-adhesive structure 100, the pneumatic motor 52 can inflate the second chamber 6 through the second air pipe 54 to increase the pressure in the second chamber 6 until the suction force is overcome and the skin-adhesive structure 100 can be easily removed. This installation and removal process can be achieved simply by adjusting the pressure in the second chamber 6, without the need for complex mechanical structures and without causing wear to the skin-adhesive structure 100 itself.

[0064] The second air tube 54 is independently arranged and exposed so that when the skin-contact structure 100 is worn, the second air tube 54 can face the human skin. The airflow on the human skin can be controlled by the pneumatic motor 52 and the second air tube 54, such as blowing, absorbing sweat, and inhaling, so as to dissipate the sweat and heat of the skin-contact part 3 in time, and avoid abnormalities such as increased contact impedance of the sensing part 4 and signal acquisition distortion caused by sweat. At the same time, it improves the breathability of the contact area between the skin and the skin-contact part 3, relieves the stuffiness of wearing for a long time, and optimizes the wearing experience. Alternatively, the skin-contact structure 100 can be adsorbed and fixed by inhalation to facilitate wearing of the skin-contact structure 100.

[0065] The second air pipe 54 and the first air pipe 53 can share the same pneumatic motor 52, that is, the pneumatic drive component, without the need to add an additional pneumatic drive component. This simplifies the structure of the control unit, reduces the overall volume and manufacturing cost of the skin-fitting structure 100, and improves the integration of the skin-fitting structure 100 while achieving multi-functional control.

[0066] It is worth noting that although the driving unit 5 in this embodiment of the invention is a single structure in physical terms, it can also be a general term for driving components with two driving functions. These two driving components can be driven separately to adjust the pressure of the corresponding chamber.

[0067] Optionally, the control unit includes a first pressure sensor 34, which is used to detect the pressure of the first chamber 31 to control the working state of the pneumatic motor 52.

[0068] like Figure 6 , Figure 10 and Figure 12 As shown, the first pressure sensor 34 can be placed in the first chamber 31 and used to detect the pressure of the first chamber 31 in real time, thereby improving the accuracy and real-time performance of the pressure detection in the first chamber 31, providing more reliable feedback data for the pressure control of the pneumatic motor 52, helping to ensure that the pressure of the first chamber 31 is stable within the preset range, and avoiding pressure fluctuations that could cause the sensing part 4 to become loose or the pressure to be too high when in contact with human skin.

[0069] Specifically, when the pressure detected by the first pressure sensor 34 in the first chamber 31 is low, for example, less than a second predetermined threshold, the controller controls the pneumatic motor 52 to start the inflation mode. The pneumatic motor 52 supplies air to the first air tube 53, and the air enters the first chamber 31 through the first air tube 53, thus pressurizing the first chamber 31. During the pressurization process of the first chamber 31, when the pressure in the first chamber 31 exceeds the external pressure, the pressure difference can drive the skin-adhesive part 3 to inflate the sensing part 4 together until the sensing part 4 is embedded in the human skin. The second predetermined threshold is a pre-set value at which the sensing part 4 can be embedded in the skin and achieve good detection.

[0070] When the pressure detected by the first pressure sensor 34 in the first chamber 31 is greater than or equal to the second predetermined threshold, the controller controls the pneumatic motor 52 to stop inflating the first chamber 31. At this time, the skin-contact part 3 and the sensing part 4 thereon remain stationary, and the sensing part 4 can collect physiological signals.

[0071] In one embodiment, a flexible buffer layer, such as a sponge or soft silicone, can be provided on the inner wall of the first chamber 31. The flexible buffer layer can buffer the impact of sudden pressure changes on the skin-contact part 3, while reducing frictional noise during the movement of the skin-contact part 3.

[0072] Optionally, the control unit also includes a second pressure sensor 35, which is used to detect the pressure in the second chamber 6; When the pressure in the second chamber 6 detected by the second pressure sensor 35 is less than or equal to the first predetermined threshold, the pneumatic motor 52 inflates the first chamber 31 through the first air pipe 53.

[0073] like Figure 2 , Figure 7 , Figure 9 , Figure 11 and Figure 16 As shown, the pressure of the second chamber 6 can be detected by the second pressure sensor 35 to reflect the actual skin contact state of the skin-fitting structure 100, avoiding problems such as insufficient skin contact pressure caused by differences in the curvature of human skin and wearing posture, which helps to ensure reliable contact between the skin-fitting structure 100 and human skin.

[0074] Specifically, after the skin-fitting structure 100 is worn onto human skin, a second chamber 6 is formed between the skin-fitting structure 100 and human skin. The pneumatic motor 52 can first draw air from the second chamber 6 through the second air tube 54 to continuously reduce the pressure of the second chamber 6.

[0075] When the pressure in the second chamber 6 detected by the second pressure sensor 35 decreases to less than or equal to a first predetermined threshold, the pneumatic motor 52 starts to inflate the first chamber 31 through the first air pipe 53 to pressurize the first chamber 31. The first predetermined threshold is a pre-set inflation start value for the first chamber 31.

[0076] During the pressurization process of the first chamber 31, when the pressure of the first chamber 31 exceeds the external pressure, the pressure difference can drive the skin-adhering part 3 to bulge together with the sensing part 4 until the sensing part 4 is embedded in the human skin.

[0077] With this setup, after the skin-fitting structure 100 is worn onto the human skin, the second chamber 6 is inhaled first and then the first chamber 31 is inflated. Compared to directly inflating the first chamber 31, this reduces the amount of gas in the first chamber 31, which helps to reduce the energy consumption of the pneumatic motor 52.

[0078] Optionally, when the pressure of the first chamber 31 detected by the first pressure sensor 34 is greater than or equal to a second predetermined threshold, the pneumatic motor 52 stops inflating the first chamber 31.

[0079] Specifically, when the pressure detected by the first pressure sensor 34 in the first chamber 31 is greater than or equal to a second predetermined threshold, the controller controls the pneumatic motor 52 to stop inflating the first chamber 31. At this time, the skin-adhering part 3 and the sensing part 4 thereon remain stationary, and the sensing part 4 can collect physiological signals. The second predetermined threshold is a pre-set value at which the sensing part 4 can be embedded in the skin and achieve good detection.

[0080] Optionally, when the pressure of the second chamber 6 detected by the second pressure sensor 35 is less than or equal to a third predetermined threshold, the pneumatic motor 52 stops drawing air from the second chamber 6, and the third predetermined threshold is less than the first predetermined threshold.

[0081] Specifically, when the second pressure sensor 35 detects that the pressure in the second chamber 6 is less than or equal to a third predetermined threshold, the controller controls the pneumatic motor 52 to stop drawing air from the second chamber 6, so that the pressure in the second chamber 6 remains constant, thus enabling the skin-adhesive structure 100 to achieve stable adsorption. The third predetermined threshold is the value at which the skin-adhesive structure 100 can achieve negative pressure adsorption.

[0082] When it is necessary to remove the skin-mounted structure 100, the pneumatic motor 52 can be controlled to inflate the second chamber 6 through the second air pipe 54, thereby increasing the pressure in the second chamber 6 until the skin-mounted structure 100 can be easily removed. Simultaneously, the pneumatic motor 52 can also be controlled to draw air from the first chamber 31 through the first air pipe 53, causing the skin-mounted part 3 to retract its sensing part 4 along the direction closer to the receiving cavity 21, i.e., away from the skin, back to its initial position, thus moving the sensing part 4 away from the skin. This installation and removal process only requires controlling the pressure of the two chambers, without the need for complex mechanical structures, and will not cause wear to the skin-mounted structure 100 itself.

[0083] In one embodiment, the second pressure sensor 35 may also be arranged at the position where it contacts the human skin after the skin-fitting structure 100 is worn, so that the pressure applied by the human skin to the skin-fitting part 3 can be monitored by the second pressure sensor 35, thereby assessing the wearing comfort of the skin-fitting structure 100.

[0084] Optionally, the first air tube 53 has an L-shaped structure. One end of the L-shaped structure is connected to a drive end of the pneumatic motor 52, and the other end of the L-shaped structure passes through the first through hole and extends into the first chamber 31. This makes the air tube layout in the receiving cavity 21 more regular, avoids spatial interference with other electronic components, helps to optimize the internal structural space utilization of the receiving cavity 21, and adapts to the miniaturization and integration design requirements of the skin-fitting structure 100.

[0085] Specifically, the first through hole is located at the mounting groove 22 of the housing component. The first through hole can connect the receiving cavity 21 and the first chamber 31, and provide a passage for the first air tube 53 to pass through, so as to achieve precise positioning of the first air tube 53 and the housing component, avoid abnormalities such as bending and squeezing caused by the random placement of the first air tube 53 in the receiving cavity 21, help ensure the smoothness of the air pressure transmission channel, reduce air pressure loss and leakage, and improve the accuracy of pressure control of the first chamber 31.

[0086] The joint between the first air pipe 53 and the first through hole can be sealed to prevent external moisture and dust from entering the receiving cavity 21 or the first chamber 31 through the first through hole. This can protect the control unit inside the receiving cavity 21 and ensure the airtightness of the first chamber 31, preventing pressure leakage.

[0087] Optionally, the second air tube 54 has an L-shaped structure. One end of the L-shaped structure is connected to the other drive end of the pneumatic motor 52, and the other end of the L-shaped structure passes through the second through hole and is exposed. This makes the air tube layout in the receiving cavity 21 more regular, avoids spatial interference with other electronic components, helps to optimize the internal structural space utilization of the receiving cavity 21, and adapts to the miniaturization and integration design requirements of the skin-fitting structure 100.

[0088] Optionally, the drive unit 5 also includes a third air tube, and the housing component has a sixth through hole. One end of the third air tube is connected to another drive end of the pneumatic motor 52, and the other end of the third air tube passes through the sixth through hole and protrudes. In this way, while using the second air tube 54 to inhale air into the second chamber 6 to stably attach the skin-fitting structure 100 to the surface of human skin, the third air tube can also be used to gently blow air into a local area of ​​the second chamber 6 to cool the local area, which helps to improve the wearing comfort of the skin-fitting structure 100.

[0089] Optionally, the control unit is a switch, which has a first pressed state, a second pressed state, and a reset state; When the switch is in the first pressed state, the driving part 5 drives the skin-contact part 3 to bulge together with the sensing part 4 in the direction away from the receiving cavity 21. When the switch is in the second pressed state, the driving part 5 drives the skin-contact part 3 and the sensing part 4 to retract together in the direction close to the receiving cavity 21. When the switch is in the reset state, the drive unit 5 stops driving.

[0090] Specifically, the switch can have three positions, each corresponding to a different working state of the drive unit 5. For example, when the switch is pressed once from the reset state, the switch is in the first pressed state. At this time, the drive unit 5 is in the first working state. The drive unit 5 can drive the skin-contact part 3 to bulge along the direction away from the receiving cavity 21, that is, towards the human skin, until the sensing part 4 is embedded in the human skin.

[0091] When the switch is pressed twice from the reset state, the switch is in the second pressed state. At this time, the drive unit 5 is in the second working state. The drive unit 5 can drive the skin-adhesive part 3 to retract the sensing part 4 along the direction close to the receiving cavity 21, that is, away from the human skin, so that the sensing part 4 is away from the human skin. At this time, the skin-adhesive structure 100 can be easily removed.

[0092] When the switch is pressed twice from the first pressing state or once from the second pressing state, the switch is in the reset state. At this time, the drive unit 5 is in a non-working state and stops driving the skin-contact part 3. At this time, the skin-contact part 3 and the sensing unit 4 on it remain stationary, and the sensing unit 4 can collect physiological signals.

[0093] With this configuration, the operating state of the drive unit 5 can be conveniently adjusted using multiple positions of the switch, such as the inflation / deflation state of the pneumatic motor 52 mentioned above.

[0094] It is worth noting that since the pneumatic motor 52 needs to fill and release air in the first chamber 31 and the second chamber 6 for pressure control, two switches can be set up, each switch is used to control the filling and releasing of air in the corresponding chamber, so as to achieve independent control of the pressure of each chamber.

[0095] Optionally, the skin-contact portion 3 includes a third housing 32 and a flexible circuit board 33 disposed within the third housing 32. The third housing 32 has at least one third through hole, and the sensing portion 4 is disposed on the flexible circuit board 33 and can be exposed from the corresponding third through hole.

[0096] like Figures 9 to 12 As shown, the flexible circuit board 33 can be embedded into the third housing 32 by injection molding or other methods to form an integrated skin-contact part 3. The flexible circuit board 33 can flexibly adapt to the curved shape of the third housing 32 and human skin, making the skin-contact fit of the sensing part 4 stronger, while facilitating the wiring and electrical connection of multiple sensing parts 4 and simplifying the signal transmission structure.

[0097] Depending on the number of sensing units 4, one, two, three, or even more third through holes can be opened on the third housing 32 to facilitate a one-to-one correspondence between the sensing units 4 and the third through holes. Each sensing unit 4 is located on the flexible circuit board 33 and protrudes from the corresponding third through hole. This provides physical protection for the flexible circuit board 33 and the sensing unit 4 through the third housing 32, preventing the sensing unit 4 from being damaged by bumps or friction, thus extending its service life. At the same time, it ensures effective contact between the detection end face of the sensing unit 4 and the human skin, preventing the third housing 32 from obstructing and affecting the physiological signal acquisition effect.

[0098] The flexible circuit board 33 serves as the carrier and wiring support for the sensing unit 4, shortening the signal transmission path between the sensing unit 4 and the control unit, reducing signal transmission loss and interference, and improving the sensitivity and stability of physiological signal acquisition. Furthermore, the flexible material can adapt to the movement of the skin-contact part 3, preventing wiring breakage and ensuring the long-term reliability of the skin-contact structure 100.

[0099] The third housing 32 can form a sealed protection for the connection between the flexible circuit board 33 and the sensing part 4. Together with the circumferential seal between the skin-contact part 3 and the mounting groove 22, it reduces the intrusion of sweat and moisture into the circuit and sensing part 4, prevents short circuits or increased contact impedance, and helps ensure that the skin-contact part 3 can work stably in complex wearable environments.

[0100] In one embodiment, such as Figure 9As shown, multiple sensing elements 4 can be evenly arranged on the flexible circuit board 33, so that the skin-contact area 3 can form a uniform multi-point physiological signal acquisition area, which helps to improve the contact coverage between the sensing elements 4 and the human skin, thereby ensuring the comprehensiveness and uniformity of signal acquisition and avoiding problems such as one-sided signal acquisition caused by a single contact point.

[0101] In one embodiment, the third housing 32 can be a flexible component, made of skin-friendly soft silicone or medical-grade flexible rubber, which has good elasticity, sealing and biocompatibility, and is non-irritating to human skin in long-term contact. At the same time, it can produce elastic deformation under pressure to adapt to the curved contour of human skin.

[0102] In one embodiment, such as Figure 1 As shown, the third housing 32 and the flexible circuit board 33 are respectively annular and adapted to each other, so that the flexible circuit board 33 can be embedded in the third housing 32 and assembled to the annular groove of the second housing 2.

[0103] Optionally, the control unit includes a first pressure sensor 34, which is used to detect the pressure of the first chamber 31. The third housing 32 has a fourth through hole. The first pressure sensor 34 is disposed on the flexible circuit board 33 and can extend into the first chamber 31 through the fourth through hole.

[0104] like Figure 6 , Figure 10 and Figure 12 As shown, the first pressure sensor 34 is disposed on the flexible circuit board 33 and can be exposed from the fourth through hole. That is, the first pressure sensor 34 is close to the first chamber 31 to detect the pressure of the first chamber 31, thereby improving the accuracy and real-time performance of pressure detection, providing more reliable feedback data for the pressure control of the pneumatic motor 52, and helping to ensure that the pressure of the first chamber 31 is stable within the preset range.

[0105] The first pressure sensor 34 moves synchronously with the skin-adhesive part 3, and can detect the pressure change of the first chamber 31 in real time during the movement of the skin-adhesive part 3. It accurately captures the point at which the pressure of the first chamber 31 reaches the second predetermined threshold, so that the controller can control the pneumatic motor 52 to stop inflating the first chamber 31. At this time, the skin-adhesive part 3 and the sensing part 4 on it remain stationary, and the sensing part 4 can collect physiological signals. The second predetermined threshold is a pre-set value at which the sensing part 4 can be embedded in the skin and achieve good detection.

[0106] Optionally, the control unit also includes a second pressure sensor 35, which is used to detect the pressure of the second chamber 6. The third housing 32 has a fifth through hole. The second pressure sensor 35 is disposed on the flexible circuit board 33 and can be exposed from the fifth through hole. The second pressure sensor 35 is arranged on the same side as the sensing unit 4.

[0107] like Figure 2 , Figure 7 , Figure 9 , Figure 11 and Figure 16 As shown, the second pressure sensor 35 is disposed on the flexible circuit board 33 and can protrude from the fifth through hole, that is, the second pressure sensor 35 is far away from the first chamber 31 so as to detect the pressure of the second chamber 6 when worn. In this way, the actual skin contact state of the skin-fitting structure 100 can be reflected by the second pressure sensor 35, avoiding problems such as insufficient skin contact pressure caused by the curvature of human skin and differences in wearing posture, and helping to ensure reliable contact between the skin-fitting structure 100 and human skin.

[0108] Optionally, the drive unit 5 is disposed in the receiving cavity 21, the mounting groove 22 is an annular groove, the third housing 32 is annular, the flexible circuit board 33 includes an annular body 331 and an extension 332 connected to the annular body 331, and the sensing unit 4 is disposed in the annular body 331.

[0109] like Figure 8 and Figure 17 As shown, the drive unit 5 is built into the receiving cavity 21 and electrically connected to the flexible circuit board 33, which helps to reuse the internal space of the housing component, simplify the overall structural layout, and improve the integration of the skin-fitting structure 100, thus meeting the miniaturization requirements of wearable products.

[0110] For example, the controller of the control unit can control the driving state of the drive unit 5 to dynamically adjust the pressure of the first chamber 31 in real time based on the physiological signal feedback of the human skin collected by the sensing unit 4. When poor signal contact is detected, the pressure is automatically replenished to ensure that the sensing unit 4 is always in close contact with the human skin and to achieve closed-loop precise control of the pressure of the first chamber 31, which helps to improve the stability and continuity of physiological signal acquisition.

[0111] like Figures 9 to 12 As shown, the flexible circuit board 33 adopts a structure design with an annular body 331 and an extension 332, which can be adapted to the annular groove and the annular third shell 32 to realize the structural integration of the skin-contact part 3 and the flexible circuit board 33. This allows the sensing part 4 to be evenly arranged along the surface of the annular body 331, which facilitates the formation of an annular wrap-around acquisition of human skin when the skin-contact structure 100 is worn, and helps to improve the comprehensiveness and uniformity of physiological signal acquisition.

[0112] like Figure 9 and Figure 10As shown, multiple sensing units 4 are disposed on the annular body 331, and the extension 332 abuts against the inner wall of the receiving cavity 21, which can avoid interference between the connecting wiring and the sensing units 4. Moreover, the extension 332 can flexibly adapt to the structural layout of the receiving cavity 21, shorten the physical distance with the driving unit 5, reduce the signal transmission path, help reduce transmission loss and interference, and improve the stability and sensitivity of signal transmission.

[0113] like Figure 9 As shown, one end of the extension 332 is electrically connected to the sensing part 4, and the extension 332 has a bent section that can be adapted to the assembly and positioning of the third housing 32.

[0114] Optionally, the mounting groove 22 includes multiple annular skin-adhesive parts 3, and multiple concentric annular grooves, with each annular groove corresponding to a skin-adhesive part 3 and sealed to form a first chamber 31.

[0115] like Figure 18 and Figure 19 As shown, two annular skin-contact portions 3 can be provided, which are correspondingly positioned on annular grooves to form two first chambers 31. Each first chamber 31 encloses a second chamber 6. This increases the effective area of ​​the first chambers 31 and the second chamber 6, which helps to enhance the adsorption effect of the skin-contact structure 100 and the fitting effect of the sensing part 4 by controlling the pressure of the corresponding chambers, thereby ensuring reliable wearing and reliable detection of the skin-contact structure 100.

[0116] The number of skin-contact parts 3 and the number of annular grooves can also be adjusted according to the design and wearing requirements.

[0117] Furthermore, the multiple concentric annular grooves, combined with the corresponding annular skin-adhesive parts 3, can form multiple concentric and independent first chambers 31, which facilitates the independent layered pressure control of the skin-adhesive parts 3. The skin pressure of each layer of skin-adhesive parts 3 can be precisely adjusted according to the curvature of human skin and the needs of different collection areas, so that the sensing parts 4 in each area are in close contact with human skin. This solves the problem of poor local contact caused by overall pressure in a single chamber, and helps to improve the comprehensiveness and accuracy of physiological signal collection.

[0118] In addition, each annular skin-fitting part 3 is sealed with the corresponding annular groove to form an independent first chamber 31. The air pressure between each first chamber 31 does not interfere with each other, which also makes it easy to replenish the pressure in areas that are not tightly fitted without adjusting the overall air pressure. This facilitates the fine and localized control of the skin-fitting pressure and helps to improve the overall wearing comfort of the skin-fitting structure 100.

[0119] Optionally, the housing component includes a first housing 1 and a second housing 2, which are sealed together and form a receiving cavity 21. The side of the second housing 2 facing away from the receiving cavity 21 has a mounting groove 22.

[0120] Specifically, the first housing 1 and the second housing 2 can be rigid structural components, which helps to improve the overall strength of the skin-fitting structure 100. The first housing 1 and the second housing 2 are assembled in a sealed manner to form a closed receiving cavity 21.

[0121] In one embodiment, an annular sealing groove can be designed on the edge of the first housing 1, and a silicone sealing ring can be embedded in the sealing groove to precisely fit the edge of the second housing 2 with the sealing groove. The sealing is then achieved by bolt fastening, ultrasonic welding or snap-fit ​​connection, etc., to ensure that the formed receiving cavity 21 has good airtightness and waterproofness, preventing external moisture and dust from entering and eroding the internal structure, and also avoiding pressure crosstalk between the receiving cavity 21 and the first chamber 31.

[0122] Optionally, the skin-contact side surface of the skin-contact part 3 can be treated with a hydrophobic and sweat-proof coating, such as a polytetrafluoroethylene coating, to prevent sweat accumulation from causing short circuits or loosening of the sensor part 4, while improving the breathability of human skin and reducing the stuffiness of wearing it for a long time.

[0123] Specifically, the skin-adhesive structure 100 has a pressure area and a negative pressure area, the negative pressure area is adjacent to the pressure area, and the skin-adhesive part 3 is located in the pressure area, while the negative pressure area corresponds to the other areas.

[0124] In one embodiment, the negative pressure area can be located outside the pressure area, forming a structure in which the outer ring adsorbs and the inner ring fits tightly together. This allows the negative pressure area to protect and support the inner pressure area, reducing the impact of external impacts on the skin-contact part 3 and the sensing part 4, thereby ensuring the continuity and accuracy of physiological signal acquisition.

[0125] In one embodiment, the negative pressure area can also be located inside the pressurized area, forming a structure in which the outer ring is tightly attached to the inner ring for adsorption, which facilitates the control of the pressure in the second chamber 6.

[0126] Optionally, the mounting groove 22 is an annular groove, with the annular groove located in the pressurized area and the negative pressure area located inside the pressurized area.

[0127] like Figure 2 and Figure 4As shown, the structure can form an outer ring that is tightly attached to the inner ring, allowing the skin-adhesive part 3 to be arranged in a ring around the negative pressure area, and the sensing part 4 to be evenly distributed along the ring. This allows the skin-adhesive structure 100 to form a ring-shaped wrap-around contact when it is attached to the human skin, which helps to improve the tightness of the contact between the sensing part 4 and the skin, thereby ensuring the comprehensiveness and uniformity of physiological signal acquisition.

[0128] The negative pressure area is located inside the pressurized area, which can form a structure in which the outer ring tightly fits the inner ring for adsorption. The negative pressure area inside can also serve as a structural support area or a pipeline storage area, and avoids the movement space of the outer annular skin-fitting part 3, thus avoiding interference with the movement of the skin-fitting part 3 and helping to ensure the smooth movement of the skin-fitting part 3 under pressure difference.

[0129] In addition, the negative pressure area on the inside can also provide central support for the skin-contact part 3, preventing abnormalities such as tilting and wrinkling when the skin-contact part 3 moves, and helping to ensure that the skin-contact part 3 drives the sensing part 4 to move synchronously and smoothly.

[0130] In one embodiment, the skin-adhesive portion 3 may be circular in cross-section, meaning it can cover both the pressure area and the negative pressure area. Specifically, the portion of the skin-adhesive portion 3 corresponding to the negative pressure area, i.e., the middle portion, can be connected to the second housing 2, allowing the portion of the skin-adhesive portion 3 corresponding to the pressure area, i.e., the edge portion, to move within the annular groove.

[0131] Optionally, the skin-adhesive portion 3 is annular, and the skin-adhesive portion 3 is circumferentially sealed to the annular groove.

[0132] like Figure 11 and Figure 12 As shown, the annular skin-adhering part 3 can be adapted to the annular groove. After the two are sealed together circumferentially, they can form an annular closed first chamber 31, so that the pressure can be evenly distributed circumferentially along the skin-adhering part 3 when pressurized. This ensures that the skin-adhering part 3 moves synchronously and smoothly towards the direction of human skin, avoiding uneven local force that could cause the skin-adhering part 3 to deviate or wrinkle.

[0133] After the skin-fitting structure 100 is worn onto human skin, the annular skin-fitting part 3 can conform to human skin, and the portion of the second shell 2 located within the annular groove can form a second chamber 6 between itself and human skin. By reducing the pressure in the second chamber 6, the skin-fitting structure 100 can be adsorbed and fixed onto human skin, thereby achieving a stable wearing of the skin-fitting structure 100.

[0134] Among them, the annular skin-adhering part 3 can drive the sensing part 4 to be distributed and adhered to the skin in a ring shape, forming a ring-shaped physiological signal acquisition area, which helps to improve the embedding coverage of the sensing part 4 and the human skin, thereby ensuring the comprehensiveness and uniformity of signal acquisition and avoiding problems such as one-sided signal acquisition caused by a single contact point.

[0135] Furthermore, the annular skin-contact portion 3 forms a ring-shaped contact band when applied to the skin, which can evenly distribute the skin pressure circumferentially to the skin, avoiding pressure pain, redness, and swelling caused by localized pressure concentration, thus improving the wearing comfort of the skin-contact structure 100. Moreover, the annular contact band also enhances the adhesion friction between the skin-contact structure 100 and the skin, reducing the risk of displacement after wearing, thereby ensuring the continuity of signal acquisition.

[0136] According to another aspect of the present invention, a wearable product is provided, including a body portion 200 and at least one of the above-described skin-fitting structures 100, the skin-fitting structure 100 being disposed on the body portion 200.

[0137] Wearable products include, but are not limited to, AR glasses, VR (Virtual Reality) headsets, smartwatches, and smart bracelets. The main body 200 comprises the temples, straps, watch straps, and other parts that come into contact with human skin.

[0138] like Figure 20 and Figure 21 As shown, depending on actual wearing needs, one, two, three or even more skin-contact structures 100 can be set on the main body 200. Multiple skin-contact structures 100 are arranged at intervals to enhance their adsorption area, making it easier to wear the wearable product securely.

[0139] Optionally, when the wearable product is in the wearing state, each skin-contact structure 100 forms a second chamber 6 between itself and the skin. When the pressure of the second chamber 6 is less than or equal to a first predetermined threshold, the driving unit 5 drives the skin-contact part 3 to bulge together with the sensing part 4 in a direction away from the receiving cavity 21.

[0140] Specifically, by reducing the pressure of the multiple second chambers 6, the skin-fitting structure 100 can be firmly attached to the human skin, thereby achieving stable wearing of the skin-fitting structure 100.

[0141] When the pressure in the corresponding second chamber 6 detected by the second pressure sensor 35 decreases to less than or equal to a first predetermined threshold, the corresponding drive unit 5 drives the skin-adhesive part 3 to inflate the sensing part 4 together until the sensing part 4 is embedded in the human skin. In this way, comprehensive acquisition of physiological signals from the human skin can be achieved through multiple skin-adhesive structures 100. The first predetermined threshold is a pre-set drive activation value for the drive unit 5, such as the inflation activation value of the first chamber 31.

[0142] According to another aspect of the present invention, a wearable product is provided, including a cover 300 and the aforementioned skin-fitting structure 100, wherein the cover 300 covers the outer side of the skin-fitting structure 100.

[0143] like Figure 22 and Figure 23 As shown, a stretchable cover 300 can be provided on the outside of the skin-fitting structure 100. The cover 300 can adapt to the movement of the skin-fitting structure 100 and fix the skin-fitting structure 100 to the surface of human skin. It can also enhance its adsorption area and help the wearable product to be worn securely.

[0144] After the wearable product is worn on the skin, a second chamber 6 is formed between the skin-fitting structure 100 and the skin. The pressure in the second chamber 6 can be reduced by the driving part 5 to adsorb and fix the skin-fitting structure 100 onto the human skin, thereby achieving a stable wearing of the skin-fitting structure 100. In this way, the negative pressure adsorption of the second chamber 6 combined with the fixation of the cover 300 can achieve dual fixation of the wearable product.

[0145] Optionally, when the wearable product is in the wearing state, a second chamber 6 is formed between the wearable product and the skin. When the pressure of the second chamber 6 is less than or equal to a first predetermined threshold, the driving unit 5 drives the skin-contacting part 3 to bulge together with the sensing part 4 in a direction away from the receiving cavity 21.

[0146] Specifically, when the pressure in the second chamber 6 detected by the second pressure sensor 35 decreases to less than or equal to a first predetermined threshold, the drive unit 5 drives the skin-contact part 3 to inflate the sensing part 4 together until the sensing part 4 is embedded in the human skin. This enables the acquisition of physiological signals from the human skin. The first predetermined threshold is a pre-set drive activation value for the drive unit 5, such as the inflation activation value of the first chamber 31.

[0147] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0148] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A skin-adhesive structure, characterized in that, include: The housing component has a receiving cavity (21) and a mounting groove (22) on one side. The skin-adhesive part (3) is circumferentially sealed and connected to the mounting groove (22) to form a first chamber (31), and the skin-adhesive part (3) is flexible; The sensing part (4) is provided on the side of the skin-contacting part (3) that is in contact with the skin. The sensing part (4) is used to detect the physiological signals of the skin. The driving part (5) is used to drive the skin-contact part (3) to cause the sensing part (4) to bulge together in a direction away from the receiving cavity (21); The control unit is electrically connected to the drive unit (5) to control the working state of the drive unit (5).

2. The skin-adhesive structure according to claim 1, characterized in that, The drive unit (5) is located in the receiving cavity (21). The drive unit (5) includes a pneumatic motor (52) and a first air pipe (53). One end of the first air pipe (53) is connected to the pneumatic motor (52), and the other end of the first air pipe (53) extends into the first chamber (31). The pneumatic motor (52) can inflate the first chamber (31) through the first air pipe (53).

3. The skin-adhesive structure according to claim 2, characterized in that, When the skin-fitting structure (100) is in the wearing state, a second chamber (6) is formed between the skin-fitting structure (100) and the skin; the driving part (5) also includes a second air tube (54), the housing component has a second through hole, one end of the second air tube (54) is connected to the pneumatic motor (52), and the other end of the second air tube (54) can pass through the second through hole and extend into the second chamber (6), and the pneumatic motor (52) can draw air from the second chamber (6) through the second air tube (54).

4. The skin-adhesive structure according to claim 3, characterized in that, The control unit includes a first pressure sensor (34), which is used to detect the pressure in the first chamber (31) to control the working state of the pneumatic motor (52).

5. The skin-adhesive structure according to claim 4, characterized in that, The control unit also includes a second pressure sensor (35), which is used to detect the pressure in the second chamber (6); When the pressure of the second chamber (6) detected by the second pressure sensor (35) is less than or equal to the first predetermined threshold, the pneumatic motor (52) inflates the first chamber (31) through the first air pipe (53).

6. The skin-adhesive structure according to claim 5, characterized in that, When the pressure of the first chamber (31) detected by the first pressure sensor (34) is greater than or equal to the second predetermined threshold, the pneumatic motor (52) stops inflating the first chamber (31); And / or, when the pressure in the second chamber (6) detected by the second pressure sensor (35) is less than or equal to a third predetermined threshold, the pneumatic motor (52) stops drawing air from the second chamber (6), wherein the third predetermined threshold is less than the first predetermined threshold.

7. The skin-adhesive structure according to claim 1, characterized in that, The control unit is a switch, which has a first pressed state, a second pressed state, and a reset state. When the switch is in the first pressed state, the driving part (5) drives the skin-contact part (3) to bulge together with the sensing part (4) in a direction away from the receiving cavity (21); When the switch is in the second pressed state, the driving part (5) drives the skin-contact part (3) to retract together with the sensing part (4) in the direction close to the receiving cavity (21); When the switch is in the reset state, the drive unit (5) stops driving.

8. The skin-adhesive structure according to claim 1, characterized in that, The skin-adhesive part (3) includes a third housing (32) and a flexible circuit board (33) disposed in the third housing (32). The third housing (32) has at least one third through hole. The sensing part (4) is disposed on the flexible circuit board (33) and can be exposed from the corresponding third through hole.

9. The skin-adhesive structure according to claim 8, characterized in that, The control unit includes a first pressure sensor (34), which is used to detect the pressure of the first chamber (31). The third housing (32) has a fourth through hole. The first pressure sensor (34) is located on the flexible circuit board (33) and can extend into the first chamber (31) through the fourth through hole. And / or, the control unit further includes a second pressure sensor (35) for detecting the pressure of the second chamber (6), the third housing (32) is provided with a fifth through hole, the second pressure sensor (35) is disposed on the flexible circuit board (33) and can be exposed from the fifth through hole, and the second pressure sensor (35) is arranged on the same side as the sensing unit (4).

10. The skin-adhesive structure according to claim 8, characterized in that, The driving part (5) is located in the receiving cavity (21), the mounting groove (22) is an annular groove, the third housing (32) is annular, the flexible circuit board (33) includes an annular body (331) and an extension (332) connected to the annular body (331), and the sensing part (4) is located in the annular body (331).

11. The skin-adhesive structure according to claim 1, characterized in that, The mounting groove (22) includes multiple annular skin-adhesive parts (3) and multiple concentric annular grooves. Each annular groove is provided with a skin-adhesive part (3) and sealed into a first chamber (31).

12. A wearable product, characterized in that, It includes a body portion (200) and at least one skin-adhesive structure (100) as described in any one of claims 1 to 11, the skin-adhesive structure (100) being disposed on the body portion (200).

13. The wearable product according to claim 12, characterized in that, When the wearable product is in the wearing state, each of the skin-fitting structures (100) forms a second chamber (6) between itself and the skin. When the pressure of the second chamber (6) is less than or equal to a first predetermined threshold, the driving part (5) drives the skin-fitting part (3) to bulge together with the sensing part (4) in a direction away from the receiving cavity (21).

14. A wearable product, characterized in that, Includes a cover (300) and a skin-fitting structure (100) as described in any one of claims 1 to 11, wherein the cover (300) is disposed on the outside of the skin-fitting structure (100).

15. The wearable product according to claim 14, characterized in that, When the wearable product is in the wearing state, a second chamber (6) is formed between the wearable product and the skin. When the pressure of the second chamber (6) is less than or equal to a first predetermined threshold, the driving part (5) drives the skin-contact part (3) to bulge together with the sensing part (4) in a direction away from the receiving cavity (21).

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