Connecting structure, watchband, watch, and wearable device

Abstract

Embodiments of the present application relate to the technical field of electronic devices, and provide a connecting structure, a watchband, a watch, and a wearable device. A fixed member and a sliding member of the connecting structure are assembled together with a fixing band of the wearable device respectively; the sliding member can be driven by a power mechanism in the fixed member to slide towards or away from the fixed member, to increase or decrease the length of the fixing band so as to achieve the effect of adjusting the tightness of wearing, thereby achieving automation and intelligence of adjustment, and improving the convenience of tightness adjustment. The connecting structure can also achieve small-range stepless adjustment, so that the fixing band can perfectly fit the size of a wearing part, thereby improving the wearing comfort, and also improving the monitoring accuracy of functions such as health monitoring. The power mechanism can work in conjunction with a control circuit board, a pressure sensor and the like to achieve adaptive dynamic adjustment of tightness, so that the connecting structure can adaptively adjust the tightness on the basis of different usage scenarios or adjustment requirements, truly achieving intelligent adaptive adjustment and providing better wearing comfort.

Description

Connection structure, strap, watch, wearable device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on November 3, 2023, with application number 202311458783.3 and application name “Connection structure, watch strap, watch, wearable device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of electronic equipment, and in particular to a connection structure, a watch strap, a watch, and a wearable device. Background Art

[0003] Wearable devices refer to portable devices that can be worn directly on the body or integrated into the user's clothing or accessories. With the rapid improvement of information technology, the application of smart wearable devices is becoming more and more extensive, such as smart watches and smart glasses. Wearable devices can be more than just hardware devices. They can also realize powerful functions through software support and data interaction, and are deeply loved by users.

[0004] To facilitate easy wear, wearable devices typically include a fixing strap and a connecting structure. For example, in the case of a watch, the watch strap can serve as the fixing strap. Typically, the strap includes two main parts, such as a first strap and a second strap. The first strap and the second strap can be connected to the watch dial, respectively. The first strap and the second strap can be connected via a connecting structure, so that the first strap, the second strap, and the watch dial can be connected to form a closed loop to surround the user's wrist or other part of the body. The first strap and the second strap are typically made of metal, leather, rubber, nylon, or other materials, and the connecting structure typically uses a butterfly buckle or a pin buckle.

[0005] When adjusting the tightness of the wearable devices such as the above-mentioned watches, the length of the fixing strap is adjusted manually, and automatic adjustment cannot be achieved, which is less convenient.

[0006] Summary of the Invention

[0007] The embodiments of the present application provide a connection structure, a watch strap, a watch, and a wearable device. The connection structure is assembled with a fixing strap to realize automated and intelligent adjustment of the length of the fixing strap, thereby realizing automatic adjustment of the wearing tightness and improving the convenience of adjusting the tightness.

[0008] A first aspect of an embodiment of the present application provides a connection structure for connecting to a fixing strap in a wearable device, the connection structure including a connected fixing part and a sliding part, the sliding part being slidably connected to the fixing part, and the fixing part and the sliding part being respectively used to connect to the fixing strap of the wearable device.

[0009] The connection structure also includes a power mechanism, which is arranged in the fixing part. The power mechanism cooperates with the sliding part. The power mechanism is used to drive the sliding part to slide toward or back to the fixing part, thereby adjusting the length of the fixing belt. That is, the power mechanism can drive the sliding part to slide to achieve the effect of adjusting the wearing tightness, realizing the automation and intelligence of the tightness adjustment, and then realizing the automatic adjustment of the wearing tightness, which significantly improves the convenience of the tightness adjustment, especially in different usage scenarios and different usage needs, the tightness adjustment can be achieved more quickly and conveniently.

[0010] Furthermore, the power mechanism drives the sliding member to slide relative to the fixed member to adjust the tightness of the wearer. The tightness adjustment is determined by the relative sliding distance between the sliding member and the fixed member. This relative sliding distance is not affected by the length of the metal links or the spacing between the eyelets in the related art. It can achieve infinite adjustment within a small range, improving the degree and accuracy of the adjustable tightness of the wearer. It has good adaptability and can perfectly adapt to the wearing parts of different users, further improving wearing comfort. In scenarios where wearable devices have sensors for health monitoring, it can ensure that the sensors can be closely attached to the user and remain close to the user for a long time, improving the monitoring accuracy of health monitoring and other functions.

[0011] In one possible implementation, the power mechanism includes a drive assembly, a rotating member, and a linkage member. The drive assembly is connected to the rotating member and is configured to drive the rotating member to rotate. The linkage member is disposed on the rotating member, and rotation of the rotating member drives the linkage member to slide, thereby causing the sliding member to slide. By converting the rotational driving force output by the drive assembly into sliding of the linkage member and the sliding member, a larger sliding displacement can be achieved with a smaller rotational torque, resulting in a larger sliding range for the sliding member, thereby increasing the adjustable range of tension and enabling infinitesimal adjustment.

[0012] In one possible implementation, a linkage member is sleeved onto a rotating member, with an external thread disposed around the outer wall of the rotating member, and an internal thread disposed around the inner wall of the linkage member. When the linkage member is sleeved onto the rotating member, the internal thread of the linkage member can be threadedly engaged with the external thread of the rotating member, thereby driving the linkage member to slide along the length of the rotating member when the rotating member rotates. This structural design is simple and highly applicable, making it easy to manufacture and implement. Furthermore, by adjusting the thread pitch of the external and internal threads, the relationship between the rotational driving force output by the drive assembly and the sliding distance between the linkage member and the sliding member can be adjusted, thereby increasing the range of tension adjustment and enabling infinitesimal adjustment, thereby optimizing and improving the range and accuracy of tension adjustment.

[0013] The threaded fit between the linkage and the rotating member can also achieve a self-locking effect. For example, after the sliding member slides to a preset position to adjust the tightness, the drive assembly stops rotating. The threaded fit between the internal thread of the linkage and the external thread of the rotating member prevents the linkage from sliding along its length relative to the rotating member, achieving a self-locking function. The strong self-locking force ensures that the length of the fixing belt is fixed, improving the wearing stability of the wearable device. It is also beneficial to achieve a long-term close fit between the sensor and the user in the wearable device with health monitoring function, better meeting the monitoring requirements of the wearable device with health monitoring function.

[0014] In one possible implementation, the sliding member includes a connecting end and a sliding end. The connecting end is used to connect to the fixing strap, and the sliding end is sleeved within the fixing member. The outer wall of the sliding end and the inner wall of the fixing member respectively have a slide rail groove and a slide rail portion, and the slide rail portion slides along the slide rail groove. The slide rail groove is an arc-shaped groove, which allows the adjusted connection structure to better fit the wearing area and further improves the adjustment accuracy of the wearing tightness.

[0015] In one possible implementation, the power mechanism further includes a transmission member, with both ends of the transmission member respectively rotatably engaged with the linkage member and the sliding member. The linkage member drives the sliding member through the transmission member, converting the longitudinal translation of the linkage member into arcuate sliding of the sliding member along the guide rail. This structure is simple and easy to implement, and helps improve the smoothness of the arcuate sliding of the sliding member relative to the fixed member.

[0016] In one possible implementation, the length of the drive assembly is perpendicular to that of the rotating member, and the power mechanism further includes a flexible shaft connected to both the drive assembly and the rotating member. This creates an L-shaped layout for the drive assembly and the transmission assembly, improving the integration of the entire power mechanism. For example, in the case of a wearable device such as a watch, the fixed member of the connection structure can be a rectangular parallelepiped with a certain curvature, creating an L-shaped layout for the drive assembly and the transmission assembly, thereby improving space utilization within the fixed member.

[0017] In one possible implementation, the drive assembly includes a drive motor and a reducer, which are connected to the reducer, which is in turn connected to the rotating member. The drive motor can output a rotational driving force, and the reducer can convert the high speed and low torque of the drive motor into a low speed and high torque to drive the rotating member. This provides the drive assembly with a strong tightening driving force, which helps increase the adjustable range of the fixing strap length, thereby increasing the degree of tension adjustment and facilitating infinitesimal adjustment.

[0018] In a possible implementation, the connection structure further includes a battery and a control circuit board, which are respectively disposed in the fixing member, the battery and the control circuit board are electrically connected to the control circuit board, and the control circuit board is electrically connected to the drive motor.

[0019] In a possible implementation, the connection structure further includes a wireless charging coil, which is disposed in the fixing member and electrically connected to the battery. The wireless charging coil is configured to charge the battery.

[0020] In one possible implementation, the drive assembly and the rotating member enclose a storage space, within which the battery and control circuit board are located. The wireless charging coil is located on the side of the storage space facing the inner surface of the fixed member, with the wireless charging coil and the storage space at least partially overlapping. This improves the integration of the various structural components within the fixed member, increases space utilization, and facilitates a miniaturized design of the connection structure.

[0021] In one possible implementation, the connection structure further includes a pressure sensor, which is disposed on the inner surface of the fixing member and electrically connected to a control circuit board. The pressure sensor is used to detect pressure information, and the control circuit board is used to control the drive motor to drive the sliding member to slide based on the pressure information, thereby adjusting the length of the fixing strap. In this way, the pressure sensor can dynamically detect the pressure value at the user's wearing part, realize adaptive adjustment of the wearing tightness, and achieve the effect of dynamically adjusting wearing comfort. For example, preset pressure thresholds in different measurement modes can be set according to different usage scenarios or adjustment requirements to realize adaptive adjustment of wearing tightness. In other words, the wearing tightness can be dynamically adjusted to a comfortable wearing state according to the user's usage scenario or adjustment requirements, truly realizing intelligent adaptive adjustment and significantly improving wearing comfort.

[0022] In one possible implementation, the connection structure further includes a wireless communication module disposed within the fixture. The wireless communication module is configured to exchange information with a control unit of the wearable device. The wireless communication module is electrically connected to a control circuit board, which controls the drive motor to drive the sliding member based on adjustment instructions received by the wireless communication module from the control unit. The wireless communication module enables information exchange between the connection structure and the main body of the wearable device, thereby enabling adjustment and control of the tightness of the wearable device through the main body of the device. This enriches the implementation scenarios for tightness adjustment and improves the user experience of the wearable device.

[0023] In one possible implementation, the inner surface of the fixing part is a curved surface, which can better fit the user's wrist and other wearing parts, further improving wearing comfort.

[0024] In a possible implementation, the connection structure further includes an assembly part, the assembly part and the sliding part are located on both sides of the fixing part, the fixing part is connected to the assembly part, and the assembly part is used to be connected to the fixing belt.

[0025] In a possible implementation, the connecting structure further includes a first folding plate and a second folding plate, and the first folding plate is located between the fixing member and the second folding plate.

[0026] The first end of the first folding plate is rotatably connected to the fixing member, and the second end of the first folding plate is rotatably connected to the first end of the second folding plate, so that the fixing member, the first folding plate and the second folding plate are folded or unfolded with each other, and when the fixing member, the first folding plate and the second folding plate are folded, the fixing member, the first folding plate and the second folding plate are snap-fitted, and the second end of the second folding plate is connected to the assembly member.

[0027] In this way, when the fixing part, the first folding plate and the second folding plate are opened to each other, the end of the first belt body connected to the sliding part, the fixing part and the first folding plate can be driven to move away from the end of the second belt body connected to the assembly part and the second folding plate. The size of the closed ring formed by the fixing belt, the device body and the connecting structure becomes larger, which facilitates the wearing and removal of the wearable device at the wearing part.

[0028] When the fixing part, the first folding plate and the second folding plate are folded together, one end of the first belt body connected to the sliding part, the fixing part and the first folding plate can be driven to approach one end of the second belt body connected to the assembly part and the second folding plate, so that the size of the formed closed ring becomes smaller, thereby fastening the wearable device to the wearing part and achieving stable wearing.

[0029] A second aspect of an embodiment of the present application provides a watch strap, comprising a fixing strap and any one of the above-mentioned connecting structures, wherein the fixing strap comprises a first strap body and a second strap body, wherein the first strap body is connected to a sliding member in the connecting structure, and the second strap body is connected to a fixing member in the connecting structure.

[0030] A third aspect of an embodiment of the present application provides a watch, comprising a dial and the above-mentioned watch strap, wherein both ends of the dial are respectively connected to the first strap body and the second strap body of the watch strap.

[0031] A fourth aspect of an embodiment of the present application provides a wearable device, comprising a fixing strap and any one of the above-mentioned connecting structures, wherein the fixing member and the sliding member in the connecting structure are respectively connected to the fixing strap.

[0032] In one possible implementation, the fixing belt includes a first belt body and a second belt body, the first belt body is connected to the fixing member, and the second belt body is connected to the sliding member. The wearable device also includes a device body, and both ends of the device body are respectively connected to the first belt body and the second belt body. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] FIG1 is a schematic structural diagram of a wearable device provided in an embodiment of the present application;

[0034] FIG2 is a schematic diagram of the assembly structure of the fixing belt and the connection structure in the wearable device of FIG1 ;

[0035] FIG3 is a schematic diagram of the assembly of the fixing belt and the connecting structure in FIG2 in another state;

[0036] FIG4 is a schematic structural diagram of the assembly of the sliding member and the power mechanism of the connection structure in FIG2 ;

[0037] FIG5 is a schematic diagram of the disassembled structure of the fixing member and the sliding member of the connection structure in FIG2 ;

[0038] FIG6 is a schematic structural diagram of the power mechanism in FIG4 ;

[0039] FIG7 is a schematic diagram of the disassembled structure of the sliding member and the power mechanism in FIG4 ;

[0040] FIG8 is a schematic diagram showing the distribution of the power mechanism, battery, and control circuit board inside the fixing member in FIG2 ;

[0041] FIG9 is a schematic diagram showing the distribution of the power mechanism and the wireless charging coil inside the fixing member in FIG2 ;

[0042] FIG10 is a schematic structural diagram of the connection structure in FIG2 at another angle;

[0043] FIG11 is a schematic diagram of a disassembled connection structure in FIG10 ;

[0044] FIG12 is a schematic diagram of a disassembled connection assembly of the connection structure in FIG10 ;

[0045] FIG13 is a schematic structural diagram of the connection assembly in FIG12 in an open state.

[0046] Explanation of Reference Numerals: 100 - wearable device; 101 - device body; 102 - fixing strap; 102a - first strap body; 102b - second strap body; 103 - connecting structure; 10 - fixing member; 11 - slide rail groove; 12 - cavity; 20 - sliding member; 20a - sliding end; 20b - connecting end; 21 - slide rail portion; 22 - second rotating shaft; 30 - assembly member; 40 - power mechanism; 41 - driving assembly; 411 - driving motor; 412 - speed reducer; 42 - rotating member; 43 - linkage member; 431 - first rotating shaft; 44 - transmission member; 441 - first axial hole; 442 - second axial hole; 45 - flexible shaft; 46 - accommodation space; 50 - battery; 60 - control circuit board; 70 - charging coil; 80 - pressure sensor; 90 - connecting assembly; 91-first folding plate; 92-second folding plate; 93-third rotating shaft; 94-fourth rotating shaft. DETAILED DESCRIPTION

[0047] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application.

[0048] The present application provides a wearable device, which may be a watch (mechanical or electronic), a smartwatch, a wristband, a smart bracelet, or the like. It may also be an augmented reality (AR) device, a virtual reality (VR) device, or a mixed reality (MR) device, such as VR glasses, AR glasses, an AR helmet, a VR helmet, or an MR helmet. The wearable device may also be a wearable electronic health monitoring device, such as a wearable blood pressure monitor or oximeter.

[0049] Alternatively, in some examples, the wearable device may also be a wearable decorative device such as a belt, a waistband, a bracelet, an anklet, or a ring.

[0050] FIG1 is a schematic structural diagram of a wearable device provided in an embodiment of the present application.

[0051] For example, in the embodiment of the present application, referring to FIG1 , the wearable device 100 is described as a watch. The watch can be a mechanical watch, or an electronic watch, a smartwatch, etc. The watch can be worn on the user's wrist and can be used to realize one or more functions such as time display, timing, time reporting, message notification, communication interaction, exercise detection, heart rate monitoring, blood oxygen level detection, etc.

[0052] Wearable device 100 may include a device body 101 and a fixing strap 102. The device body 101 is connected to the fixing strap 102, and the wearable device 100 can be worn via the fixing strap 102, thereby securing the device body 101 to the user's wrist. The fixing strap 102 secures the device body 101 to ensure a stable wear. To facilitate wearing, the fixing strap 102 may be a flexible, bendable band-like structure.

[0053] The device body 101 may include a frame, and the wearable device 100 may further include structural components for implementing device functions, which may be disposed within the frame. For example, if the wearable device 100 is a watch, the frame of the device body 101 may further contain an organic movement.

[0054] For example, the movement can be a manual mechanical movement, an automatic mechanical movement, or an intelligent movement, etc., and the embodiment of the present application does not limit the type of movement. It is understood that the device body 101 can be a structure in which the movement is assembled in the frame, or the device body 101 can also be without the movement assembled, and the device body 101 can only include the frame.

[0055] Among them, in the example where the movement is an automatic mechanical movement or an intelligent movement, the movement may include a control unit, which can control the entire wearable device 100, such as controlling the display of information such as time and health monitoring indicators.

[0056] The movement may also include a battery and a wireless charging coil. The battery may be electrically connected to the control unit to power the control unit. The wireless charging coil may be electrically connected to the battery to charge the battery through the wireless charging coil.

[0057] The material of the fixing strap 102 can be flexible or rigid. For example, the fixing strap 102 can be made of stainless steel or plastic. For example, the fixing strap 102 can be a rubber strap. Alternatively, the fixing strap 102 can be a metal strap formed by sequentially connecting metal links, or a cloth strap woven from cotton or nylon thread. The material of the fixing strap 102 is not limited in the embodiments of the present application.

[0058] Exemplarily, the fixing belt 102 may include a first belt body 102a and a second belt body 102b. The first end of the first belt body 102a and the first end of the second belt body 102b may be connected to both ends of the device body 101 respectively.

[0059] FIG2 is a schematic diagram of the assembly structure of the fixing belt and the connection structure in the wearable device of FIG1 .

[0060] As shown in Figure 2, the wearable device 100 may further include a connecting structure 103, which is connected to the fixing strap 102. For example, the second end of the first strap 102a and the second end of the second strap 102b can be respectively connected to the two ends of the connecting structure 103, so that the device body, the first fixing strap 102, the connecting structure 103 and the second fixing strap 102 can together form a closed loop to be wrapped around the user's wrist or other wearing part, thereby fixing the entire wearable device 100 on the user.

[0061] It can be understood that in some examples, when the wearable device 100 is a wearable accessory such as a belt, waistband, bracelet, anklet, or ring, the wearable device 100 may not include a device body, and the fixing strap 102 may be an integrated structural component. The two ends of the fixing strap 102 can be connected by a connecting structure 103, so that the fixing strap 102 and the connecting structure 103 can be together formed into a ring to surround the wearing part for wearing.

[0062] The wearable device 100 may also include a sensor (not shown in the figure), which can be used to implement any one or more of a variety of functions such as motion monitoring, heart rate monitoring, sleep monitoring, diet monitoring, blood pressure and blood oxygen monitoring. The health monitoring function of the wearable device 100 can be realized through the sensor.

[0063] It is understood that the sensor can be positioned in a location within the wearable device 100 based on the sensor's function and type, as long as it satisfies the sensor's functional requirements. For example, the sensor can be positioned on the fixing band 102, or the sensor can be positioned on the frame of the device body 101.

[0064] The sensor may be an optical sensor such as a photoplethysmography (PPG) sensor. Of course, in some other examples, the sensor may also be other types of biosensors.

[0065] It should be noted that in the process of implementing the above-mentioned health function monitoring, the sensor of the wearable device 100 needs to be in close contact with the user's wearing part (such as the wrist) to achieve continuous measurement and ensure accuracy. Therefore, the sensor can be located on the inner surface of the fixing band 102 or the frame of the device body. The inner surface refers to the side of the fixing band 102 or the frame that faces the user's wearing part and contacts the user's wearing part when the wearable device 100 is worn.

[0066] It is understood that the structures illustrated in the embodiments of the present application do not constitute a specific limitation on the wearable device 100. In other embodiments of the present application, the wearable device 100 may include more or fewer components than shown, or may combine or separate certain components, or arrange the components differently. For example, the wearable device 100 may also include a dial, a drive mechanism, a display panel, a battery, and other components.

[0067] Among them, taking the wearable device 100 as a watch as an example, there are generally four types of fixing straps 102 based on the material: metal straps, leather straps, rubber straps and nylon straps. In order to improve the convenience of wearing, the connection structure 103 generally adopts buckles, pin buckles and other types.

[0068] For example, a common snap-on connection structure is a butterfly clasp, typically used with a metal strap comprised of multiple metal links. The two ends of the butterfly clasp can be connected to a first strap member and a second strap member, respectively. The butterfly clasp, also known as a folding clasp, can be folded or unfolded. When the butterfly clasp is folded and fastened, the first and second strap members are relatively close together, allowing the watch to fit snugly around the wrist or other wearing area, securing it around the wrist. When the butterfly clasp is unfolded, the first and second strap members are relatively separated, increasing the diameter of the loop formed by the strap, the butterfly clasp, and the device body, making it easier to attach and detach the watch.

[0069] It is understandable that due to the different size requirements of each user's wearing area, it is necessary to adjust the tightness of the wearable device, that is, to adjust the length of the fixing strap when worn, so that the wearable device better fits the user's wearing area. In the above-mentioned metal link watch, some metal links can be manually removed to reduce the length of the fixing strap (the length along the extension direction of the fixing strap when the butterfly clasp is folded and fastened) so that it fits the user's wrist. Therefore, the tightness adjustment requires manual operation and often requires the use of tools to remove the metal links, which is less convenient. In particular, in different usage scenarios or different usage needs, users have different requirements for the tightness of the wear. For example, a looser tightness is required for leisure and sleep, and a tighter tightness is required for sports. Manually adjusting the tightness greatly reduces convenience and is inconvenient to operate. It is also impossible to automatically and dynamically adjust the tightness according to the usage scenario.

[0070] Furthermore, the tightness adjustment is determined by the number and length of metal links. Generally, a metal link is 5mm to 7mm long, and the adjustable length range is fixed. The degree and accuracy of tightness adjustment are limited, making it difficult to fully adapt to each user's wrist circumference, reducing the wearing comfort of wearable devices such as watches. Furthermore, due to the limited degree and accuracy of tightness adjustment, stepless adjustment within a small range is impossible. The wearer may wear the wearer loose or tight, making it difficult for sensors in wearable devices to fit tightly or remain tightly attached to the user for extended periods of time, reducing the accuracy of health monitoring and other functions.

[0071] Leather, rubber, and nylon watch straps are typically fitted with a pin buckle-type connection structure, which may include a pin and a buttonhole. The pin can be connected to a first strap, and a second strap can be formed with a plurality of buttonholes, which can be spaced apart along the length of the second strap. The pin can be inserted into and secured to the buttonhole, connecting the first and second straps, thereby closing the strap connection and allowing the watch to be secured around the wrist. The pin can also be separated from the buttonhole, separating the first and second straps, making it easier to put the watch on or take it off the wrist.

[0072] The length of the fixing strap (fixing strap closure) can be adjusted by adjusting the fit of the buckle with the buttonholes at different positions, thereby adjusting the tightness of the wearer. However, the tightness of the wearer must be adjusted manually, which is inconvenient and does not allow for dynamic adjustment of the tightness in different usage scenarios or for different needs. The tightness of the wearer cannot be automatically adjusted dynamically according to the usage scenario or needs.

[0073] Furthermore, due to the limited strength of the strap's material, the spacing between the eyelets cannot be too small, typically 4mm to 7mm. Adjusting the tightness is determined by the eyelet spacing, limiting the degree and accuracy of adjustment, making it difficult to fully adapt to each user's wrist circumference. Similarly, infinite adjustment within a small range is impossible, reducing the accuracy of health monitoring and other functions.

[0074] To achieve infinite adjustment of wearing tightness to improve wearing comfort and the accuracy of health monitoring functions, related technologies also include watch straps with connecting structures such as magnetic or Velcro. For example, the connecting structure includes two magnetic plates that can attract and cooperate with each other, and the two magnetic plates are respectively fixed to the first strap body and the second strap body. The length of the fixed strap when worn can be adjusted by adjusting the position of the magnetic plates. Alternatively, the connecting structure can include two Velcro strips that cooperate with each other, and the two Velcro strips are respectively fixed to the first strap body and the second strap body. The length of the fixed strap when worn can be adjusted by adjusting the adhesive position of the Velcro strips. Since there are no restrictions on the length of metal links or the spacing between buttonholes, the matching position between the first strap body and the second strap body can be arbitrarily adjusted, and the length of the fixed strap can be arbitrarily adjusted.

[0075] However, adjusting the tightness of the strap still requires manual operation, and achieving a better fit may require repeated adjustments, such as repeatedly separating and reattaching the magnetic sheet or Velcro. This is inconvenient and difficult to dynamically adjust the tightness for different usage scenarios or needs, let alone automatically adjusting the tightness based on the usage scenario. Furthermore, the magnetic or Velcro connection method has weak bonding strength and is prone to failure, causing the connection between the first and second straps to loosen or break. This can easily lead to loosening during exercise, reducing wearing comfort and the accuracy of functions such as health monitoring.

[0076] Based on this, an embodiment of the present application provides a connection structure, in which the fixed part and the sliding part of the connection structure can be respectively assembled and connected with the fixing belt. Under the drive of the power mechanism, the sliding part can slide relative to the fixed part to adjust the length of the fixing belt, thereby adjusting the wearing tightness, realizing the automation and intelligence of the adjustment, and then realizing the automatic adjustment of the wearing tightness, significantly improving the convenience of the tightness adjustment. The connection structure can also achieve a small range of stepless adjustment of the length of the fixing belt, improve the degree and accuracy of the tightness adjustment, so that it can perfectly adapt to the wearing part size of different users, and can improve the monitoring accuracy of wearable devices with functions such as health monitoring. In addition, the power mechanism can cooperate with the control circuit board, pressure sensor, etc. to achieve adaptive dynamic adjustment of the tightness, so that the connection structure can adaptively adjust the tightness according to different usage scenarios or adjustment requirements, and has excellent wearing comfort.

[0077] 2 , the connection structure 103 provided in the embodiment of the present application includes a connected fixing member 10 and a sliding member 20, wherein the sliding member 20 and the fixing member 10 are respectively used to connect to the fixing belt 102. For example, the sliding member 20 can be located on one side of the fixing member 10, one end of the sliding member 20 can be connected to one end of the fixing member 10, the other end of the sliding member 20 can be connected to the first belt body 102a, and the other end of the fixing member 10 can be connected to the second belt body 102b.

[0078] For example, the other end of the sliding member 20 may be connected to the first belt body 102a through a spring ear, and the other end of the fixing member 10 may also be connected to the second belt body 102b through a spring ear.

[0079] It should be noted that the sliding member 20 and the first belt body 102a can be fixedly connected or rotatably connected, and correspondingly, the fixing member 10 and the second belt body 102b can be fixedly connected or rotatably connected.

[0080] The sliding member 20 is connected to the fixing member 10 by means of sliding fit, that is, the sliding member 20 can slide relative to the fixing member 10 .

[0081] FIG3 is a schematic diagram of the assembly of the fixing belt and the connecting structure in FIG2 in another state.

[0082] 3 , the sliding member 20 can slide relative to the fixing member 10 and away from the fixing member 10, thereby increasing the distance between the sliding member 20 and the fixing member 10, and thus increasing the distance between the first belt body 102a and the second belt body 102b, thereby increasing the length of the fixing belt 102 and achieving relaxation of the fixing belt 102.

[0083] On the contrary, the sliding member 20 can also slide toward the fixing member 10 relative to the fixing member 10, shortening the distance between the first belt body 102a and the second belt body 102b, thereby reducing the length of the fixing belt 102, tightening the fixing belt 102, and adjusting the length of the fixing belt 102, thereby adjusting the wearing tightness.

[0084] FIG4 is a schematic structural diagram of the assembly of the sliding member and the power mechanism of the connection structure in FIG2 .

[0085] As shown in FIG4 , the connection structure further includes a power mechanism 40, which can be disposed within the fixing member and cooperatively connected to the sliding member 20. The power mechanism 40 can drive the sliding member 20 to slide, and the power mechanism 40 can drive the sliding member 20 to slide toward or away from the fixing member, thereby adjusting the length of the fixing strap 102. In other words, the power mechanism 40 drives the sliding member 20 to slide to adjust the wearing tightness, thereby achieving automated and intelligent tightness adjustment, thereby achieving automatic adjustment of the wearing tightness, significantly improving the convenience of tightness adjustment, and especially enabling faster and more convenient tightness adjustment in different usage scenarios or adjustment requirements.

[0086] When the fixing strap needs to be tightened, for example, when wearing a wearable device to fit the user's wearing part to achieve functions such as health monitoring, or when the fixing strap needs to be tightened in scenarios such as sports to make the wearable device more stable, the power mechanism 40 can be controlled to drive the sliding part 20 to move toward the fixing part to reduce the length of the fixing strap.

[0087] When the fixing strap needs to be loosened, for example, when the fixing strap needs to be loosened so that the wearable device can be placed around the wearing part, or when the fixing strap needs to be loosened to improve wearing comfort in leisure, sleeping and other scenarios, the power mechanism 40 can be controlled to drive the sliding part 20 to move back toward the fixing part to increase the length of the fixing strap.

[0088] Furthermore, the power mechanism 40 drives the sliding member 20 to slide relative to the fixed member to adjust the tightness of the wearer. The tightness adjustment is determined by the relative sliding distance between the sliding member 20 and the fixed member. This relative sliding distance is not affected by factors such as the length of the metal links or the spacing between the eyelets, enabling infinite adjustment within a small range. This improves the degree and precision of tightness adjustment and provides excellent adaptability, allowing the strap to perfectly adapt to different user locations and further enhancing wearing comfort. Furthermore, in scenarios where wearable devices incorporate sensors for health monitoring, this ensures that the sensors adhere closely to and remain in close contact with the user for extended periods, improving the accuracy of health monitoring and other functions.

[0089] It should be noted that the sliding member slides relative to the fixed member. The sliding member can slide along a straight track, or the sliding member can slide along an arc track, or, in some examples, the sliding member can slide along other track directions. The specific setting can be selected according to the design requirements of the structure and connection structure of the wearable device.

[0090] Fig. 5 is a schematic diagram of the disassembled structure of the fixing member and the sliding member of the connection structure in Fig. 2. It should be noted that Fig. 5 shows a schematic diagram of the internal structure of the connection structure.

[0091] For example, taking a watch as an example, as shown in FIG5 , the inner surfaces of the fixing member 10 and the sliding member 20 can be curved, with a certain curvature. The inner surfaces of the fixing member 10 and the sliding member 20 refer to the sides of the fixing member 10 and the sliding member 20 that face and contact the user's wearing area when the wearable device is worn. For example, both the fixing member 10 and the sliding member 20 can be curved structural members to better conform to the user's wrist or other wearing area, further improving wearing comfort.

[0092] The sliding member 20 can slide in an arc shape relative to the fixing member 10, so that the adjusted connecting structure 103 can better fit the wearing part, which is also conducive to further improving the adjustment accuracy of the wearing tightness.

[0093] Exemplarily, as shown in FIG. 5 , the sliding member 20 may include a sliding end 20 a and a connecting end 20 b . The sliding member 20 may be connected to the first belt body via the connecting end 20 b , and the sliding end 20 a of the sliding member 20 may be slidably connected to the fixing member 10 .

[0094] The fixing member 10 may have a cavity 12, and the sliding end 20a of the sliding member 20 may be sleeved in the cavity 12. The power mechanism (not shown in the figure) may be disposed in the cavity 12 and be cooperatively connected with the sliding end 20a.

[0095] A slide rail groove may be provided on one of the inner side wall of the fixing member 10 and the outer side wall of the sliding end 20a, and a slide rail portion may be provided on the other of the inner side wall of the fixing member 10 and the outer side wall of the sliding end 20a. For example, as shown in FIG. 5 , slide rail grooves 11 may be respectively provided on the two opposite inner side walls of the fixing member 10, and raised slide rail portions 21 may be respectively provided on the two opposite outer side walls of the sliding end 20a of the sliding member 20.

[0096] The slide rail portion 21 is arranged on the slide rail groove 11 and can slide along the slide rail groove 11. The cooperation between the slide rail portion 21 and the slide rail groove 11 can play a guiding and limiting role in the sliding of the sliding member 20, ensuring that the sliding member 20 can slide stably along a fixed track relative to the fixed member 10 under the drive of the power mechanism.

[0097] The slide rail groove 11 may be an arc-shaped groove, so that the sliding member 20 can slide in an arc shape along the slide rail groove 11 .

[0098] FIG6 is a schematic structural diagram of the power mechanism in FIG4 .

[0099] In an embodiment of the present application, referring to FIG6 , illustratively, the power mechanism 40 may include a driving component 41 , a rotating member 42 and a linkage member 43 , wherein the driving component 41 may have an output end, and the output end of the driving component 41 may output a rotational driving force.

[0100] For example, the driving assembly 41 may include a driving motor 411 and a reducer 412 . The driving motor 411 is connected to the reducer 412 , and the output shaft of the reducer 412 may serve as the output end of the driving assembly 41 .

[0101] The drive motor 411 can output rotational driving force, and the reducer 412 can convert the high speed and small torque of the drive motor 411 into low speed and large torque, so that the drive component 41 has a large tightening driving force, which is conducive to increasing the adjustable range of the fixed belt length, thereby increasing the degree of adjustment of the tightness, and is also conducive to achieving infinite small range adjustment.

[0102] Of course, in some examples, the driving assembly 41 may also only include the driving motor 411 , and the output shaft of the driving motor 411 may serve as the output end of the driving assembly 41 .

[0103] The output end of the drive assembly 41 can be connected to the rotating member 42. The rotational driving force output by the drive assembly 41 can drive the rotating member 42 to rotate. In the embodiment of the present application, the direction parallel to the rotation axis of the rotating member 42 is the x-direction in Figure 6. In other words, the rotating member 42 can rotate about the x-direction under the drive assembly 41.

[0104] It should be noted that the rotating member 42 may be a rod-like rotating shaft structure, and the length direction of the rotating member 42 may be consistent with the axis direction of the rotating shaft of the rotating member 42, that is, the length direction of the rotating member 42 may also be the x direction in Figure 6.

[0105] The linkage member 43 is disposed on the rotating member 42 and cooperates with the rotating member 42. The rotation of the rotating member 42 can drive the linkage member 43 to slide along its length direction (x direction). The linkage member 43 can be connected to the sliding member 20 (see Figure 4), so that the linkage member 43 can drive the sliding member to slide relative to the fixed member to adjust the wearing tightness. In other words, by converting the rotational driving force output by the drive assembly 41 into the sliding of the linkage member 43 and the sliding member, a larger sliding displacement can be obtained with a smaller rotational torque, so that the sliding member has a larger sliding range, which is conducive to increasing the adjustable range of tightness and also facilitates the realization of infinitesimal adjustment.

[0106] For example, the linkage member 43 and the rotating member 42 can be threadedly engaged to realize the rotation of the rotating member 42, and can drive the linkage member 43 to slide along the length direction of the rotating member 42. Specifically, as shown in FIG6 , the linkage member 43 can be sleeved on the rotating member 42.

[0107] An external thread may be provided on the outer wall of the rotating member 42 . It is understandable that the external thread may be provided on the outer wall of the rotating member 42 in a spiral manner with the rotation axis of the rotating member 42 as the axis.

[0108] It should be noted that the external thread may be provided around the entire outer wall of the rotating member 42 along the length direction (x direction), or may be provided around only a portion of the outer wall of the rotating member 42 along the length direction.

[0109] The linkage member 43 may be a hollow structure so that the linkage member 43 is sleeved on the rotating member 42. It is understood that the rotation axis of the linkage member 43 is parallel to the rotation axis of the rotating member 42. An internal thread (not shown) may be provided around the inner wall of the linkage member 43. Similarly, the internal thread may be provided helically around the inner wall of the linkage member 43 with the rotation axis of the linkage member 43 as the axis.

[0110] When the linkage member 43 is sleeved on the rotating member 42, the internal thread of the linkage member 43 can be threadedly engaged with the external thread of the rotating member 42, so that when the rotating member 42 rotates, the linkage member 43 can be driven to slide along the length direction (x direction) of the rotating member 42. The structural design is simple and highly applicable, and is easy to manufacture. It can be understood that by adjusting the thread pitch of the external and internal threads, the relationship between the rotational driving force output by the drive assembly 41 and the sliding distance of the linkage member 43 and the sliding member can be adjusted, thereby increasing the range of tension adjustment and achieving infinitesimal adjustment, which is conducive to optimizing and improving the range and accuracy of tension adjustment.

[0111] In addition, the threaded fit between the linkage member 43 and the rotating member 42 can also achieve a self-locking effect. For example, after the sliding member slides to the preset position to adjust the tightness, the drive assembly 41 stops rotating, and the threaded fit between the internal thread of the linkage member 43 and the external thread of the rotating member 42 can prevent the linkage member 43 from sliding along the length direction (x direction) relative to the rotating member 42, which means that the sliding member will not slide relative to the fixed member under the action of external force, achieving a self-locking function, and the self-locking force is large, so that the length of the fixing belt remains fixed. It is also possible to maintain the tightening state (or loose state) of the fixing belt, improve the wearing stability of the wearable device, and also facilitate the long-term close fit between the sensor and the user in the wearable device with health monitoring function, better meeting the monitoring requirements of the wearable device with health monitoring function.

[0112] FIG7 is a schematic diagram of the disassembled structure of the sliding member and the power mechanism in FIG4 .

[0113] In order to realize the sliding of the linkage part and drive the sliding part to slide along the arc track, for example, as shown in Figure 7, the power mechanism 40 can also include a transmission part 44, one end of the transmission part 44 is rotatably connected to the linkage part 43, and the other end of the transmission part 44 can be rotatably connected to the sliding part 20, so that when the linkage part 43 slides along the length direction of the rotating part 42, the slide rail part 21 of the sliding part 20 can be driven to slide in the slide rail groove of the fixed part through the transmission part, so that the sliding part 20 can realize arc-shaped sliding relative to the fixed part. The structure is simple and easy to implement, and it is beneficial to improve the smoothness of the arc-shaped sliding of the sliding part 20 relative to the fixed part.

[0114] For example, referring to FIG7 , a first rotating shaft 431 may be provided on the outer wall of the linkage member 43 , and a first shaft hole 441 may be provided on one end of the transmission member 44 , so that the transmission member 44 can achieve rotational engagement with the first rotating shaft 431 on the linkage member 43 through the first shaft hole 441 .

[0115] Correspondingly, a second axial hole 442 can be opened on the other end of the transmission member 44, and a second rotating shaft 22 can be set on the sliding end 20a of the sliding member 20. The transmission member 44 can achieve rotational cooperation with the second rotating shaft 22 on the sliding member 20 through the second axial hole 442.

[0116] FIG8 is a schematic diagram showing the distribution of the power mechanism, battery, and control circuit board inside the fixing member in FIG2 .

[0117] As shown in Figure 8, in an embodiment of the present application, the length direction of the driving component 41 in the power mechanism 40 is taken as the second direction, such as the y direction shown in Figure 8. It can be understood that the output end of the driving component 41 can rotate around the second direction, such as the output shaft of the driving motor 411 and the reducer 412 can rotate around the second direction.

[0118] Among them, the length direction (y direction) of the driving component 41 can be perpendicular to the length direction (x direction) of the rotating part 42, which means that the driving component 41 and the transmission component are distributed in an L-shaped layout, which can improve the integration of the entire power mechanism 40. Taking the wearable device as a watch as an example, the fixing part 10 of the connecting structure can be a rectangular parallelepiped structure with a certain curvature, so that the driving component 41 and the transmission part 44 are arranged in an L-shape, which can improve the space utilization inside the fixing part 10.

[0119] In order to realize the transmission connection between the driving component 41 and the rotating part 42, the power mechanism 40 can also include a soft shaft 45. The soft shaft 45 can be a flexible columnar structure composed of metal wire. The two ends of the soft shaft 45 can be connected to the output end of the driving component 41 and the rotating part 42 respectively, so that the driving component 41 can drive the rotating part 42 to rotate through the soft shaft 45.

[0120] It can be understood that the driving component 41 and the rotating member 42 are distributed in an L-shaped layout, and an accommodating space 46 (as shown in Figure 6) can be enclosed between the driving component 41 and the transmission member 44, and the accommodating space 46 can be used to accommodate structural components in the fixing member 10.

[0121] For example, referring to FIG8 , the connection structure 103 may further include a battery 50 and a control circuit board 60 , and the battery 50 and the control circuit board 60 are respectively arranged in the cavity of the fixing member 10 , for example, they may be respectively arranged in the accommodating space 46 formed between the driving component 41 and the transmission member 44 .

[0122] The battery 50 may be electrically connected to the control circuit board 60 to supply power to the control circuit board 60 .

[0123] The control circuit board 60 can be electrically connected to the drive motor 411. For example, the pins of the drive motor 411 can be electrically connected to the control circuit board 60 by welding or wire connection. The control circuit board 60 can control the drive motor 411, thereby driving the sliding part to slide relative to the fixed part through the drive motor 411, thereby realizing control of the wearing tightness adjustment.

[0124] It should be noted that the above L-shaped layout distribution is only an example and is not limited thereto. Other layouts that can improve the utilization rate of the internal space of the fixing member can be adopted.

[0125] FIG9 is a schematic diagram showing the distribution of the power mechanism and the wireless charging coil inside the fixing member in FIG2 .

[0126] As shown in FIG. 9 , the connection structure 103 may further include a wireless charging coil 70 , and the wireless charging coil 70 may also be disposed in the cavity of the fixing member 10 .

[0127] The wireless charging coil 70 is electrically connected to the battery 50, and the battery 50 can be charged through the wireless charging coil 70. For example, the connection structure 103 can be used with a charging stand, and when the battery 50 has no power, it can be charged through the wireless charging coil 70 and the charging stand.

[0128] It should be noted that in scenarios where the wearable device also includes a battery and a wireless charging coil, the connection structure and the wearable device can be matched and share the same charging base. Of course, when it is necessary to charge the battery of the connection structure and the battery of the wearable device at the same time, two charging bases can be used to charge the two batteries separately.

[0129] It is understandable that the wireless charging coil 70 is disposed in the fixing member 10 , and the wireless charging coil 70 can be disposed close to the inner surface of the fixing member 10 to meet charging requirements.

[0130] For example, as shown in FIG9 , the wireless charging coil 70 can be located on the side of the accommodation space facing the inner surface of the fixing member 10, and the wireless charging coil 70 and the accommodation space at least partially overlap, that is, the wireless charging coil 70 can cover at least part of the accommodation space, and the wireless charging coil can also cover part of the power mechanism 40, further improving the integration of various structural components inside the fixing member 10, improving space utilization, and facilitating the miniaturization design of the connection structure.

[0131] The connection structure has an independent battery, wireless charging coil and control circuit board to achieve control over the tightness of wearing, and can be physically decoupled from the wearable device, so that the connection structure can be matched with various types of wearable devices. For example, taking the watch strap and connection structure as an example, it can be adapted to common mechanical or electronic watch dials, or it can be adapted to different specifications such as smart watches that can realize functions such as health monitoring, realizing universal design and helping to reduce development costs.

[0132] In some examples, an adjustment button (not shown in the figure) can be provided on the connection structure, such as an adjustment button can be provided on the fixing member, and the adjustment button can receive the user's adjustment instruction information through the user's operation (such as pressing, rotating, pushing and pulling, etc.), and the adjustment instruction information may include tightening or loosening the fixing belt, etc. The control circuit board controls the operation of the drive motor according to the received adjustment instruction information to adjust the wearing tightness. Taking the adjustment button as an example of being rotatably provided on the fixing member, such as rotating the adjustment button clockwise, the control circuit board can control the drive motor to drive the sliding member to slide toward the fixing member, so that the length of the fixing belt becomes smaller and tightened. On the contrary, rotating the adjustment button counterclockwise, the control circuit board can control the drive motor to drive the sliding member to slide back to the fixing member, so that the length of the fixing belt becomes larger and loosened. In this way, in different usage scenarios or adjustment requirements, the wearing tightness can be adjusted by simply operating the adjustment button, which greatly improves convenience.

[0133] Alternatively, in some examples, the adjustment button may also be set on the side of the device body, for example, on the dial, and the adjustment button may be a mechanical button, or the adjustment button may also be a virtual button.

[0134] The connection structure can realize information interaction with the device body, so that the connection structure can be controlled by the device body to adjust the wearing tightness, enrich the implementation scenarios of tightness adjustment, and help improve the user experience of wearable devices.

[0135] For example, the connection structure may further include a wireless communication module (not shown), which may also be disposed within the cavity of the fixture. The wireless communication module may be electrically connected to the control circuit board, and information exchange between the control circuit board and the control unit within the wearable device may be achieved through the wireless communication module.

[0136] The adjustment button on the device body receives the user's adjustment instruction information through the user's operation, and transmits the adjustment instruction information to the communication unit in the device body, and then transmits it to the wireless communication module in the connection structure through the communication unit, and then transmits it to the control circuit board. The control circuit board adjusts the wearing tightness through the received adjustment instruction information.

[0137] In some examples, the adjustment instruction information of the user received by the adjustment button may also include a stop adjustment instruction. When the adjustment button is operated to tighten or loosen the fixing belt, when the user feels that the wearing tightness is the required tightness, the adjustment button can be operated to issue a stop adjustment instruction. When the control circuit board receives the stop adjustment instruction, it can stop controlling the operation of the drive motor. Due to the self-locking function of the rotating part and the linkage part, the tightness can be maintained.

[0138] Alternatively, in some examples, adaptive dynamic adjustment of the tightness can be achieved without the user having to issue a stop adjustment command through the adjustment button again. The tightness can also be adaptively adjusted according to different usage scenarios or adjustment needs, further improving the intelligence of the wearing tightness adjustment, achieving excellent wearing comfort performance, and enhancing the user experience.

[0139] FIG10 is a schematic structural diagram of the connection structure in FIG2 at another angle.

[0140] For example, as shown in FIG10 , the connection structure 103 may further include a pressure sensor 80, which may be disposed on the inner surface of the fixing member 10. The pressure sensor 80 is used to detect pressure information. For example, when the wearable device is worn, the pressure sensor 80 may detect the pressure value of the fixing band on the user's wearing part, that is, the pressure value of the user's wearing part.

[0141] The pressure sensor 80 is electrically connected to the control circuit board. The pressure sensor 80 transmits pressure information to the control circuit board, which then controls the drive motor to drive the sliding member 20 relative to the fixing member 10, thereby adjusting the length of the fixing strap. This allows the pressure sensor 80 to dynamically detect the pressure at the user's wearing site, enabling adaptive adjustment of the tightness of the strap and ultimately achieving dynamic adjustment of wearing comfort.

[0142] For example, a preset threshold value can be set in the pressure sensor 80. The pressure sensor 80 can compare the detected pressure value with the preset threshold value to form pressure information and feed it back to the control circuit board (such as the microprocessor of the control circuit board). The control circuit board can control the drive motor to drive the sliding part to slide according to the pressure information.

[0143] Of course, in some examples, a preset threshold value may be set in the control circuit board. The control circuit board may compare the pressure value detected by the pressure sensor with the preset threshold value and, based on the comparison information, drive the slider to slide via the driving mechanism. In the embodiments of the present application, the preset threshold value in the pressure sensor is used as an example for explanation.

[0144] For example, when the pressure value detected by the pressure sensor 80 is lower than the preset threshold, the pressure information is fed back to the control circuit board. The control circuit board can drive the sliding part 20 to slide toward the fixed part 10 through the driving component, rotating part, linkage part and transmission part, tighten the fixing belt, and reduce the size of the closed ring formed by the fixing belt, the device body and the connecting structure 103. The pressure value detected by the pressure sensor 80 will increase and reach the preset threshold.

[0145] When the pressure value detected by the pressure sensor 80 is higher than the preset threshold, the pressure information is fed back to the control circuit board. The control circuit board can drive the sliding part 20 to slide back toward the fixed part 10 through the driving component, rotating part, linkage part and transmission part, so that the fixing belt is loosened, and the closed ring size formed by the fixing belt, the device body and the connecting structure 103 becomes larger. The pressure value detected by the pressure sensor 80 will decrease and reach the preset threshold.

[0146] When the pressure sensor 80 detects that the pressure value reaches the preset threshold, it feeds back the pressure to the control circuit board, which can stop the drive motor from rotating. The self-locking function of the linkage and rotating parts can ensure that the fixing belt remains locked (or relaxed).

[0147] In the scenario described above where the adjustment button is operated to tighten or loosen the strap, different preset thresholds can be set accordingly when tightening or loosening the strap. For example, when tightening the strap, the preset threshold is relatively large. This preset threshold can be a pressure value obtained based on factors such as wearing comfort. When the pressure value at the wearing part reaches the preset threshold, it can be said that the current strap length is well matched to the wearing part size, providing a more comfortable wearing experience. Conversely, when loosening the strap, the preset threshold can be relatively small. In this way, when tightening or loosening the strap by operating the adjustment button, the pressure sensor 80 can dynamically detect the pressure value at the wearing part. When the preset threshold corresponding to the tightening or loosening adjustment is reached, the control circuit board receives the pressure information from the pressure sensor 80 and can automatically control the drive motor to stop running, thereby achieving fixed tightness. The user does not need to operate the adjustment button again to stop adjustment, making the adjustment of wearing tightness more intelligent and automated, further improving convenience.

[0148] In addition, different measurement modes can be set in different usage scenarios, such as sports mode, leisure mode, sleep mode, health monitoring mode, etc. Different preset thresholds can be set for different measurement modes. For example, when used in sports scenes or health monitoring functions, it can correspond to sports mode or health monitoring mode, and the preset threshold can be relatively large. When used in sleep scenes, it can correspond to sleep mode, and the preset threshold can be relatively small. When used in other scenes such as leisure scenes, it can correspond to leisure mode or other types of modes, and the preset threshold can be centered. In this way, adaptive dynamic adjustment of wearing tightness can be achieved according to different usage scenarios or adjustment requirements, that is, it can be dynamically adjusted to a comfortable wearing state according to the user's usage scenarios or adjustment requirements, realizing intelligent adaptive adjustment and significantly improving wearing comfort.

[0149] It can be understood that the selection of the measurement mode can also be achieved through the adjustment button mentioned above, that is, the user adjustment instruction information received by the adjustment button can also include measurement mode information, etc. The control circuit board can transmit the adjustment instruction information to the pressure sensor 80. The pressure sensor 80 compares the detected pressure value with the preset threshold value under the scenario according to the adjustment instruction information and forms pressure information. The control circuit board can control the operation of the drive motor according to the pressure information to adjust the wearing tightness.

[0150] Of course, in some examples, a measurement mode adjustment button may be additionally provided on the connection structure or the device body, and the user's adjustment instruction information may be received through the measurement mode adjustment button. The adjustment instruction information may only include measurement mode information, etc., but does not include tightening or loosening the fixing strap mentioned above, etc.

[0151] In the embodiment of the present application, the pressure sensor 80 is disposed on the connection structure 103. Of course, in some other examples, the pressure sensor 80 may also be disposed on the device body, for example, on the inner surface of the dial. The pressure information detected by the pressure sensor 80 can be transmitted to the control circuit board via the communication unit of the device body and the wireless communication module of the connection structure 103.

[0152] It should be noted that, compared to placing the pressure sensor 80 on the connection structure 103, placing it on the device body can eliminate the need for pressure information exchange between the device body and the connection structure, simplifying or eliminating the wireless communication module within the connection structure 103, saving internal space occupied by the connection structure 103 and facilitating a miniaturized design of the connection structure 103. Furthermore, the weight of the device body (e.g., a dial) is typically greater than the weight of the connection structure 103. Placing the pressure sensor 80 on the connection structure 103 can reduce the effect of the connection structure 103's own weight on pressure detection, thereby improving adjustment accuracy.

[0153] Taking into account the convenience of wearing, the fixing part 10 and the sliding part 20 can also be matched with other types of connecting components 90 that can adjust the length of the fixing belt. For example, they can be matched with connecting components 90 of the types of buckles, pin buckles, etc. (such as the buckle and pin buckle type connecting structures mentioned above).

[0154] FIG11 is a schematic diagram of the disassembly of the connection structure in FIG10 , and FIG12 is a schematic diagram of the disassembly of the connection components of the connection structure in FIG10 .

[0155] Exemplarily, in combination with Figures 11 and 12, the connection structure 103 can also include a snap-type connection component 90, which can include a first folding plate 91 and a second folding plate 92, wherein the first folding plate 91 can be located between the fixing member 10 and the second folding plate 92.

[0156] As shown in Figure 12, the first end of the first folding plate 91 is rotatably connected to the fixing member 10. For example, the connecting structure 103 may also include a third rotating shaft 93. A third axial hole (not shown in the figure) may be provided on the first end of the first folding plate 91, and a fourth axial hole (not shown in the figure) may be provided on the fixing member 10. The third rotating shaft 93 may be passed through the third axial hole and the fourth axial hole, and the third rotating shaft 93 may be fixed to one of the third axial hole and the fourth axial hole, and the other one may be rotatably matched, thereby realizing the rotational connection between the first folding plate 91 and the fixing member 10 through the third rotating shaft 93.

[0157] The second end of the first folding plate 91 is rotatably connected to the first end of the second folding plate 92. For example, the connecting structure 103 may also include a fourth rotating shaft 94. A fifth axial hole (not marked in the figure) may be provided on the second end of the first folding plate 91, and a sixth axial hole (not marked in the figure) may be provided on the first end of the second folding plate 92. The fourth rotating shaft 94 may be passed through the fifth axial hole and the sixth axial hole, and the fourth rotating shaft 94 may be fixed to one of the fifth axial hole and the sixth axial hole, and the other one may be rotatably matched, thereby realizing the rotational connection between the first folding plate 91 and the second folding plate 92 through the fourth rotating shaft 94.

[0158] Because the fixing member 10 is rotatably engaged with the first end of the first folding plate 91, and the second end of the first folding plate 91 is rotatably engaged with the first end of the second folding plate 92, the fixing member 10 and the first folding plate 91 can rotate toward each other, and the first folding plate 91 and the second folding plate 92 can also rotate toward each other, so that the fixing member 10 and the first folding plate 91, and the first folding plate 91 and the second folding plate 92 can be folded relative to each other. When the fixing member 10 and the first folding plate 91, and the first folding plate 91 and the second folding plate 92 can no longer rotate toward each other, the fixing member 10, the first folding plate 91 and the second folding plate 92 are folded relative to each other (see FIG. 10 ).

[0159] FIG13 is a schematic structural diagram of the connection assembly in FIG12 in an open state.

[0160] 13 , correspondingly, the fixing member 10 and the first folding plate 91 can also rotate away from each other, and the first folding plate 91 and the second folding plate 92 can also rotate away from each other, so that the fixing member 10 , the first folding plate 91 and the second folding plate 92 can be relatively opened.

[0161] The second end of the second folding plate 92 can be connected to the fixing belt. For example, the second end of the second folding plate 92 can be connected to the second belt body via the assembly part 30, and the fixing part 10 is connected to the first belt body via the sliding part 20. As shown in FIG13 , when the fixing part 10, the first folding plate 91, and the second folding plate 92 are opened, the end of the first belt body connected to the sliding part 20, the fixing part 10, and the first folding plate 91 can be driven away from the end of the second belt body connected to the assembly part 30 and the second folding plate 92, thereby lengthening the fixing belt and enlarging the size of the closed loop formed by the fixing belt, the device body, and the connecting structure 103, thereby facilitating the wearing and removal of the wearable device at the wearing part.

[0162] When the fixing part 10, the first folding plate 91 and the second folding plate 92 are folded together, the end of the first belt body connected to the sliding part 20, the fixing part 10 and the first folding plate 91 can be driven to approach the end of the second belt body connected to the assembly part 30 and the second folding plate 92, so that the length of the fixing belt becomes shorter and the size of the closed loop formed becomes smaller, so that the wearable device is fastened to the wearing part and stable wearing is achieved.

[0163] It can be understood that when the fixing member 10, the first folding plate 91 and the second folding plate 92 are folded together, the fixing member 10, the first folding plate 91 and the second folding plate 92 can be snapped together to keep the fixing member 10, the first folding plate 91 and the second folding plate 92 in a folded setting, keeping the length of the fixing belt fixed to achieve stable wearing.

[0164] For example, as shown in Figure 13, a first snap-fit ​​portion 911 can be provided on one end of the first folding plate 91 connected to the fixing member 10, and a second snap-fit ​​portion 921 can be provided on one end of the second folding plate 92 connected to the assembly member 30 (refer to Figure 10), such as the first snap-fit ​​portion 911 can be a snap-fit ​​hanging plate, and the second snap-fit ​​portion 921 can be a snap-fit ​​mouth.

[0165] When the fixing member 10, the first folding plate 91 and the second folding plate 92 are folded with each other, the first snap-fit ​​portion 911 can be snap-fitted with the second snap-fit ​​portion 921, such as the snap-fit ​​hanging piece is snap-fitted on the snap-fit ​​mouth, and the snap-fitting of the two plays a limiting role, so that the fixing member 10 and the first folding plate 91, and the first folding plate 91 and the second folding plate 92 cannot rotate relative to each other and open, thereby keeping the fixing member 10, the first folding plate 91 and the second folding plate 92 folded.

[0166] It should be noted that the fixing part 10 and the sliding part 20 in the connecting structure 103 are used to adjust the wearing tightness when worn, that is, the fixing part 10, the first folding plate 91 and the second folding plate 92 are folded and arranged to be worn on the wearing part, and the wearing tightness can be adjusted by driving the sliding part 20 to slide.

[0167] When the fixing member 10, the first folding plate 91 and the second folding plate 92 are opened to each other to wear or remove the wearable device, the sliding member 20 can be driven by the power mechanism to slide back toward the fixing member 10, so that the sliding member 20 is located at the maximum sliding displacement, and the sliding member 20 and the fixing member 10 are at the maximum relative position, which is conducive to further increasing the length of the fixing belt and increasing the size of the closed ring formed by the fixing belt, the device body and the connecting structure, making it easier to wear or remove.

[0168] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances. The terms "first", "second", "third", "fourth", etc. (if any) are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0169] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application have been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A connection structure for connecting to a fixing belt in a wearable device, characterized in that: It comprises a connected fixing member and a sliding member, wherein the sliding member is slidably connected to the fixing member, and the fixing member and the sliding member are respectively used to be connected to the fixing belt of the wearable device; It also includes a power mechanism, which is arranged in the fixing member and cooperates with the sliding member. The power mechanism is used to drive the sliding member to slide toward or away from the fixing member.

2. The connection structure according to claim 1, characterized in that: The power mechanism comprises a driving assembly, a rotating member and a linkage member, wherein the driving assembly is connected to the rotating member, and the driving assembly is used to drive the rotating member to rotate; The linkage member is arranged on the rotating member, and the rotating member rotates to drive the linkage member to slide so that the sliding member slides.

3. The connection structure according to claim 2, characterized in that: The linkage member is sleeved on the rotating member, an outer thread is arranged around the outer wall of the rotating member, and an inner thread matching with the outer thread is arranged around the inner wall of the linkage member.

4. The connection structure according to claim 3, characterized in that: The sliding member comprises a connecting end and a sliding end, wherein the connecting end is used to be connected to the fixing belt; The sliding end is sleeved in the fixing member, and a sliding rail groove and a sliding rail portion are respectively provided on the outer side wall of the sliding end and the inner side wall of the fixing member. The sliding rail portion slides along the sliding rail groove, and the sliding rail groove is an arc groove.

5. The connection structure according to claim 4, characterized in that: The power mechanism further comprises a transmission member, and two ends of the transmission member are respectively rotatably matched with the linkage member and the sliding member.

6. The connection structure according to any one of claims 2 to 5, characterized in that: The length direction of the driving assembly is perpendicular to the length direction of the rotating member; The power mechanism also includes a flexible shaft, which is respectively connected to the output end of the driving component and the rotating member.

7. The connection structure according to any one of claims 2 to 6, characterized in that: The driving assembly includes a driving motor and a reducer, the driving motor is connected to the reducer, and the reducer is connected to the rotating member.

8. The connection structure according to claim 7, characterized in that: It also includes a battery and a control circuit board, wherein the battery and the control circuit board are respectively arranged in the fixing member; The battery is electrically connected to the control circuit board, and the control circuit board is electrically connected to the drive motor.

9. The connection structure according to claim 8, characterized in that: It also includes a wireless charging coil, which is disposed in the fixing member; The charging coil is electrically connected to the battery, and the wireless charging coil is configured to charge the battery.

10. The connection structure according to claim 8 or 9, characterized in that: Also included is a pressure sensor, the pressure sensor being disposed on the inner surface of the fixing member; The pressure sensor is electrically connected to the control circuit board. The pressure sensor is used to detect pressure information. The control circuit board is used to control the drive motor to drive the sliding member to slide according to the pressure information.

11. The connection structure according to any one of claims 1 to 10, characterized in that: Also includes a first folding plate and a second folding plate, wherein the first folding plate is located between the fixing member and the second folding plate; The first end of the first folding plate is rotatably connected to the fixing member, and the second end of the first folding plate is rotatably connected to the first end of the second folding plate, so that the fixing member, the first folding plate and the second folding plate can be folded or unfolded with each other. When the fixing member, the first folding plate and the second folding plate are folded, the fixing member, the first folding plate and the second folding plate are snap-fitted together, and the second end of the second folding plate is used to be connected to the fixing belt.

12. A watch strap, characterized in that: It comprises a fixing belt and a connecting structure as described in any one of claims 1 to 11 above; The fixing belt comprises a first belt body and a second belt body, wherein the first belt body is connected to the sliding member in the connecting structure, and the second belt body is connected to the fixing member in the connecting structure.

13. A watch, characterized in that: It comprises a watch dial and the watch band as claimed in claim 12, wherein two ends of the watch dial are respectively connected to the first band body and the second band body of the watch band.

14. A wearable device, characterized in that: It comprises a fixing belt and a connecting structure as described in any one of claims 1 to 11 above; The fixing member and the sliding member in the connecting structure are respectively connected to the fixing belt.

15. The wearable device according to claim 14, characterized in that: The fixing belt comprises a first belt body and a second belt body, wherein the first belt body is connected to the fixing member, and the second belt body is connected to the sliding member; The wearable device further comprises a device body, and two ends of the device body are respectively connected to the first belt body and the second belt body.

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