Connecting structure, watchband, watch and wearable device

Abstract

The embodiment of the invention provides a connecting structure, a watchband, a watch and wearable equipment, and belongs to the technical field of electronic equipment, a fixed part and a sliding part of the connecting structure are respectively assembled with a fixed band of the wearable equipment, the sliding part can slide towards or back to the fixed part under the driving of a power mechanism in the fixed part, the length of the fixed band is increased or reduced, and the fixed band is fixed. The effect of adjusting the wearing tightness is achieved, the automation and intelligence of adjustment are realized, and the convenience of tightness adjustment is improved. In addition, the connecting structure can also achieve stepless adjustment in a small range, so that the fixing band can perfectly adapt to the size of a wearing part, the wearing comfort is improved, and the monitoring accuracy of health monitoring and other functions can also be improved. The power mechanism is matched with the control circuit board, the pressure sensor and the like, so that the tightness can be adaptively and dynamically adjusted, the connecting structure can adaptively adjust the tightness according to different use scenes or adjustment requirements, intelligent adaptive adjustment is truly realized, and the wearing comfort is more excellent.

Description

Technical Field

[0001] 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

[0002] Wearable devices refer to portable devices that can be worn directly on the body or integrated into the user's clothes 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, making wearable devices not only a hardware device, but also realize powerful functions through software support and data interaction, and are deeply loved by users.

[0003] In order to realize the convenient wearing of the device, the wearable device usually includes a fixing strap and a connecting structure. For example, taking a watch as an example, the strap of the watch can be used as a fixing strap. Usually, the strap can include two main parts, such as a first strap and a second strap. The first strap and the second strap can be connected to the dial of the watch respectively. The first strap and the second strap can be connected through a connecting structure, so that the first strap, the second strap and the dial as a whole can be connected into a closed loop to surround the user's wrist and other parts. Among them, the first strap and the second strap are generally made of metal, leather, rubber, nylon and other materials, and the connecting structure is generally a butterfly buckle or a pin buckle.

[0004] 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. Summary of the invention

[0005] 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.

[0006] 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 comprising a connected fixing member and a sliding member, the sliding member being slidably connected to the fixing member, and the fixing member and the sliding member being respectively used to connect to the fixing strap of the wearable device.

[0007] The connecting 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 away from the fixing part, so as to adjust the length of the fixing belt. That is, the sliding part can be driven by the power mechanism to slide to achieve the effect of adjusting the wearing tightness, thereby realizing the automation and intelligence of the tightness adjustment, and then the automatic adjustment of the wearing tightness can be realized, which significantly improves the convenience of the tightness adjustment, especially in different usage scenarios and different usage requirements, the tightness adjustment can be achieved more quickly and conveniently.

[0008] Moreover, the power mechanism drives the sliding part to slide relative to the fixed part to adjust the tightness of wearing. The tightness adjustment is determined by the relative sliding distance between the sliding part and the fixed part, and the relative sliding distance will not be affected by the length of the metal chain link or the spacing between the buttonholes in the related technology. It can achieve infinite adjustment in a small range, improve the degree and accuracy of the adjustable tightness of wearing, have good adaptability, and can perfectly adapt to the wearing parts of different users, further improving the wearing comfort. And in scenarios where the wearable device has a sensor to achieve health monitoring, it can ensure that the sensor can be close to and remain close to the user for a long time, improving the monitoring accuracy of functions such as health monitoring.

[0009] In a possible implementation, the power mechanism includes 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 disposed on the rotating member, and the rotation of the rotating member drives the linkage member to slide so that the sliding member slides. The rotational driving force output by the driving assembly is converted into the sliding of the linkage member and the sliding member, and a larger sliding displacement can be obtained through 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 is also conducive to realizing infinite small range adjustment.

[0010] In a possible implementation, the linkage part is sleeved on the rotating part, and an external thread is arranged around the outer wall of the rotating part, and an internal thread is arranged around the inner wall of the linkage part. When the linkage part is sleeved on the rotating part, the internal thread of the linkage part can be threadedly matched with the external thread of the rotating part, so that when the rotating part rotates, the linkage part can be driven to slide along the length direction of the rotating part. The structural design is simple and has high applicability, which is convenient for production. In addition, by adjusting the thread spacing of the external thread and the internal thread, the relationship between the rotational driving force output by the drive component and the sliding distance of the linkage part and the sliding part can be adjusted, so that the range of tightness adjustment can be increased, and infinitely small range adjustment can be achieved, which is conducive to optimizing and improving the range and accuracy of tightness adjustment.

[0011] The threaded fit between the linkage and the rotating part can also achieve a self-locking effect. For example, after the sliding part slides to the preset position to adjust the tightness, the drive assembly stops rotating, and the threaded fit between the internal thread of the linkage and the external thread of the rotating part prevents the linkage from sliding relative to the rotating part along its length, thus achieving a self-locking function. The self-locking force is large, so that the length of the fixing belt is fixed, which improves the wearing stability of the wearable device, and is also conducive to achieving a long-term close fit between the sensor and the user in the wearable device with health monitoring function, so as to better meet the monitoring requirements of the wearable device with health monitoring function.

[0012] In a possible implementation, the sliding member includes a connecting end and a sliding end, the connecting end is used to connect with the fixing belt, the sliding end is sleeved in the fixing member, and the outer side wall of the sliding end and the inner side wall of the fixing member are respectively provided with 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 groove, so that the adjusted connection structure can better fit the wearing part, and is also conducive to further improving the adjustment accuracy of the wearing tightness.

[0013] In a possible implementation, the power mechanism further includes a transmission member, and the two ends of the transmission member are respectively rotatably matched with the linkage member and the sliding member. The linkage member drives the sliding member to slide through the transmission member, and the translation of the linkage member along the length direction is converted into an arc-shaped sliding of the sliding member along the slide rail groove. The structure is simple and easy to implement, and it is conducive to improving the smoothness of the arc-shaped sliding of the sliding member relative to the fixed member.

[0014] In a possible implementation, the length direction of the driving assembly is perpendicular to the length direction of the rotating member, and the power mechanism further includes a flexible shaft, which is connected to the driving assembly and the rotating member, respectively. This makes the driving assembly and the transmission assembly arranged in an L-shaped layout, which can improve the integration of the entire power mechanism. Taking the wearable device as a watch as an example, the fixed part of the connection structure can be a rectangular parallelepiped structure with a certain curvature, so that the driving assembly and the transmission member are arranged in an L-shaped layout, which can improve the space utilization inside the fixed part.

[0015] In a possible implementation, the drive assembly includes a drive motor and a reducer, the drive motor and the reducer are connected, and the reducer is connected to the rotating member. The drive motor can output a rotational driving force, and the reducer can convert the high speed and small torque of the drive motor into a low speed and large torque to drive the rotating member to rotate, so that the drive assembly 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.

[0016] In a possible implementation, the connection structure further includes a battery and a control circuit board, and 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.

[0017] In a possible implementation, the connection structure further includes a wireless charging coil, which is disposed in the fixing member, electrically connected to the battery, and configured to charge the battery.

[0018] In a possible implementation, the driving assembly and the rotating member enclose a storage space, the battery and the control circuit board are located in the storage space, the wireless charging coil is located on a side of the storage space facing the inner surface of the fixing member, and the wireless charging coil and the storage space at least partially overlap. This improves the integration of the internal components of the fixing member, improves the space utilization rate, and facilitates the miniaturization design of the connection structure.

[0019] In a possible implementation, the connection structure also includes a pressure sensor, which is arranged on the inner surface of the fixing part, and is electrically connected to the 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 part to slide according to the pressure information, so as to adjust the length of the fixing belt. In this way, the pressure value of the user's wearing part can be dynamically detected by the pressure sensor, and the wearing tightness can be adaptively adjusted to achieve the effect of dynamically adjusting the wearing comfort. For example, the pressure preset thresholds under different measurement modes can be set according to different usage scenarios or adjustment requirements to achieve adaptive adjustment of the wearing tightness, that is, 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.

[0020] In a possible implementation, the connection structure also includes a wireless communication module, which is disposed in the fixing part, and is used to realize information exchange with the control unit of the wearable device, and the wireless communication module is electrically connected to the control circuit board, and the control circuit board is used to control the drive motor to drive the sliding part to slide according to the adjustment instruction information of the control unit received by the wireless communication module. The wireless communication module can realize information exchange between the connection structure and the device body of the wearable device, so as to realize the adjustment and control of the wearing tightness through the device body, enrich the implementation scenarios of the tightness adjustment, and help improve the user experience of the wearable device.

[0021] In a 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.

[0022] 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.

[0023] In a possible implementation, the connection 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.

[0024] 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, 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.

[0025] In this way, when the fixing part, the first folding plate and the second folding plate are opened to each other, the first belt body connected to the sliding part, the fixing part and one end of the first folding plate can be driven to move away from 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 main body and the connecting structure becomes larger, which is convenient for the wearable device to be worn and removed at the wearing part.

[0026] When the fixing part, the first folding plate and the second folding plate are folded with each other, the end of the first belt body connected with the sliding part, the fixing part and the first folding plate can be driven to approach the end of the second belt body connected with 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.

[0027] A second aspect of an embodiment of the present application provides a watch strap, comprising a fixing strap and any 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.

[0028] A third aspect of an embodiment of the present application provides a watch, comprising a dial and the above-mentioned watch strap, wherein two ends of the dial are respectively connected to a first strap body and a second strap body of the watch strap.

[0029] A fourth aspect of an embodiment of the present application provides a wearable device, comprising a fixing belt and any one of the above-mentioned connecting structures, wherein a fixing member and a sliding member in the connecting structure are respectively connected to the fixing belt.

[0030] In a 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

[0031] Figure 1 A schematic diagram of the structure of a wearable device provided in an embodiment of the present application;

[0032] Figure 2 for Figure 1Schematic diagram of the assembly structure of the fixing belt and the connecting structure in the wearable device;

[0033] Figure 3 for Figure 2 A schematic diagram of the assembly of the fixing belt and the connecting structure in another state;

[0034] Figure 4 for Figure 2 A schematic diagram of the structure of the sliding member and the power mechanism of the middle connection structure;

[0035] Figure 5 for Figure 2 A schematic diagram of the split structure of the fixed part and the sliding part of the middle connection structure;

[0036] Figure 6 for Figure 4 Schematic diagram of the structure of the power mechanism;

[0037] Figure 7 for Figure 4 Schematic diagram of the split structure of the middle sliding member and the power mechanism;

[0038] Figure 8 for Figure 2 A schematic diagram of the distribution of the power mechanism, battery and control circuit board inside the central fixing;

[0039] Fig. 9 for Figure 2 A schematic diagram of the distribution of the power mechanism and wireless charging coil inside the central fixing member;

[0040] Fig.10 for Figure 2 A schematic diagram of the structure of the connecting structure at another angle;

[0041] Fig.11 for Fig.10 Schematic diagram of the splitting of the connecting structure;

[0042] Fig.12 for Fig.10 Schematic diagram of the splitting of the connected components of the connection structure;

[0043] Fig.13 for Fig.12 Schematic diagram of the open state structure of the connection component.

[0044] Description of reference numerals:

[0045] 100- Wearable devices;

[0046] 101- Equipment body;

[0047] 102-fixing belt; 102a-first belt body; 102b-second belt body;

[0048] 103-connection structure;

[0049] 10-fixing member; 11-slide rail groove; 12-cavity;

[0050] 20-sliding member; 20a-sliding end; 20b-connecting end; 21-sliding rail portion; 22-second rotating shaft;

[0051] 30-Assembly parts;

[0052] 40- power mechanism;

[0053] 41-driving assembly; 411-driving motor; 412-reducing gear;

[0054] 42-rotating member;

[0055] 43-linkage member; 431-first rotating shaft;

[0056] 44-transmission member; 441-first shaft hole; 442-second shaft hole;

[0057] 45-flexible shaft;

[0058] 46- Accommodation space;

[0059] 50-battery;

[0060] 60-control circuit board;

[0061] 70-charging coil;

[0062] 80-pressure sensor;

[0063] 90-connection assembly;

[0064] 91- first folding plate;

[0065] 92 - second folding plate;

[0066] 93- third rotating shaft;

[0067] 94-The fourth axis. DETAILED DESCRIPTION

[0068] 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.

[0069] The embodiment of the present application provides a wearable device, which may be a watch (mechanical watch and electronic watch), a smart watch, a bracelet, a smart bracelet, etc. It may also be an augmented reality (AR) device, a virtual reality (VR) device, and a mixed reality (MR) device, etc. For example, it may be VR glasses, AR glasses, AR helmets, VR helmets, MR helmets, etc. The wearable device may also be a wearable electronic health detection device, such as a wearable blood pressure monitor, a blood oximeter, etc.

[0070] 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.

[0071] Figure 1 A schematic diagram of the structure of a wearable device provided in an embodiment of the present application.

[0072] For example, in the examples of this application, see Figure 1 As shown, the wearable device 100 is a watch as an example for explanation. The watch can be a mechanical watch, or the watch can also be an electronic watch, a smart watch, etc. The watch can be worn on the wrist of the user and can be used to realize one or more functions such as time display, timing, time reporting, message notification, communication interaction, motion detection, heart rate monitoring, blood oxygen level detection, etc.

[0073] The wearable device 100 may include a device body 101 and a fixing belt 102. The device body 101 is connected to the fixing belt 102. The wearable device 100 may be worn through the fixing belt 102 so that the device body 101 is worn on the user's wrist. The fixing belt 102 plays a fixing role so that the device body 101 can be worn stably. To facilitate wearing, the fixing belt 102 may be a flexible and bendable belt-shaped structure.

[0074] The device body 101 may include a frame, and the wearable device 100 may also include a structural device for realizing the device function, and the structural device may be arranged in the frame. For example, taking the wearable device 100 as a watch, the frame of the device body 101 may also contain a movement.

[0075] Exemplarily, the movement can be a manual mechanical movement, an automatic mechanical movement or an intelligent movement, etc., and the type of movement is not limited in the embodiments of the present application. It is understandable 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 unassembled with the movement, and the device body 101 can only include the frame.

[0076] 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.

[0077] The movement may also include a battery and a wireless charging coil. The battery may be electrically connected to the control unit to supply power to the control unit. The wireless charging coil may be electrically connected to the battery to charge the battery through the wireless charging coil.

[0078] The material of the fixing belt 102 may be a flexible material or a rigid material. For example, the molding material of the fixing belt 102 may be a stainless steel material or a plastic material, etc. For example, the fixing belt 102 may be a rubber belt. Alternatively, the fixing belt 102 may also be a metal belt formed by sequentially connecting metal links, or the fixing belt 102 may also be a cloth belt woven from cotton thread or nylon thread. In the embodiment of the present application, there is no limitation on the material of the fixing belt 102.

[0079] Exemplarily, the fixing belt 102 may include a first belt body 102a and a second belt body 102b, and a first end of the first belt body 102a and a first end of the second belt body 102b may be connected to two ends of the device body 101 respectively.

[0080] Figure 2 for Figure 1 Schematic diagram of the assembly structure of the fixing belt and the connecting structure in the wearable device.

[0081] Combination Figure 2 As shown, the wearable device 100 may also include a connecting structure 103, which is connected to the fixing belt 102. For example, the second end of the first belt body 102a and the second end of the second belt body 102b can be respectively connected to the two ends of the connecting structure 103, so that the device body, the first fixing belt 102, the connecting structure 103 and the second fixing belt 102 can together form a closed loop to surround the user's wrist or other wearing parts, so that the entire wearable device 100 is fixedly worn on the user.

[0082] It can be understood that in some examples, when the wearable device 100 is a wearable accessory such as a belt, a waistband, a bracelet, an anklet, or a 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 may 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.

[0083] The wearable device 100 may also include a sensor (not shown in the figure), which can be used to realize 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.

[0084] It is understandable that the sensor can be set in the wearable device 100 according to the function and type of the sensor, and can meet the functional requirements of the sensor. For example, the sensor can be set on the fixing belt 102, or the sensor can also be set on the frame of the device body 101.

[0085] 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.

[0086] It should be noted that in the process of realizing the above-mentioned health function monitoring, the sensor of the wearable device 100 needs to be close to the user's wearing part (such as the wrist, etc.) to achieve continuous measurement and ensure accuracy. Therefore, the sensor can be located on the inner surface of the frame of the fixing belt 102 or the device body, and the inner surface refers to the side of the fixing belt 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.

[0087] It is understood that the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the wearable device 100. In other embodiments of the present application, the wearable device 100 may also include more or fewer components than shown in the figure, or combine certain components, or split certain components, or arrange the components differently. For example, the wearable device 100 may also include components such as a dial, a drive mechanism, a display panel, and a battery.

[0088] 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.

[0089] For example, a common buckle-type connection structure is a butterfly buckle, which is generally used in conjunction with a metal fixing belt composed of multiple metal links. The two ends of the butterfly buckle can be connected to the first belt body and the second belt body respectively. The butterfly buckle can also be called a folding buckle, which can be folded or unfolded. When the butterfly buckle is folded and buckled, the first belt body and the second belt body are relatively close to each other, so as to fit the user's wrist and other wearing parts, and the watch is fixed around the wrist. When the butterfly buckle is unfolded, the first belt body and the second belt body are relatively far apart, and the diameter of the ring formed by the fixing belt, the butterfly buckle and the device body becomes larger, which is convenient for wrapping the watch around the wrist or taking it off the wrist.

[0090] It is understandable that, due to the different size requirements of the wearing part of each user, it is necessary to adjust the wearing tightness of the wearable device, that is, to adjust the length of the fixing belt when wearing, so that the wearable device can better fit the user's wearing part. In the above-mentioned metal link watch, some metal links can be manually removed to reduce the length (length along the extension direction of the fixing belt) of the fixing belt (when the butterfly buckle is folded and fastened) so that it can fit the user's wrist. Therefore, the adjustment of the tightness requires manual operation and often requires the use of tools to remove the metal links, which is less convenient, especially in different usage scenarios or different usage requirements, users have different requirements for adjusting the tightness of wearing, such as requiring a looser wearing tightness in leisure, sleep and other scenarios, and requiring a tighter wearing tightness in sports and other scenarios. Manually adjusting the tightness greatly reduces the convenience, is inconvenient to operate, and cannot achieve automatic dynamic adjustment of the wearing tightness according to the usage scenario.

[0091] Moreover, the tightness adjustment is determined by the number and length of metal links. Generally, the length of a metal link is 5mm to 7mm, and the adjustable length range is fixed. The degree and accuracy of tightness adjustment are limited, making it difficult to fully adapt to the wrist circumference of each user, reducing the wearing comfort of wearable devices such as watches. In addition, due to the limited degree and accuracy of tightness adjustment, it is impossible to achieve stepless adjustment in a small range. When worn, it is loose or tight, making it difficult for the sensors in the wearable device to fit tightly or fit tightly to the user for a long time, reducing the monitoring accuracy of functions such as health monitoring.

[0092] For leather straps, rubber straps, nylon straps, etc., a pin buckle type connection structure is usually used. The connection structure may include a pin and a buttonhole. The pin may be connected to the first strap body, and a plurality of buttonholes may be formed on the second strap body. The plurality of buttonholes may be spaced apart along the length extension direction of the second strap body. The pin may be inserted and fixed on the buttonhole to connect the first strap body with the second strap body, thus closing the fixed strap connection, and the watch may be fixed around the wrist. The pin may also be separated from the buttonhole to separate the first strap body from the second strap body, making it easier to put the watch around the wrist or take it off the wrist.

[0093] Among them, the length of the fixing belt (fixing belt closure) can be adjusted by adjusting the cooperation between the buckle pin and the buttonholes at different positions, thereby adjusting the wearing tightness. Similarly, the wearing tightness adjustment requires manual operation, which is less convenient and not convenient for dynamically adjusting the wearing tightness in different usage scenarios or different usage requirements, nor can it automatically and dynamically adjust the wearing tightness according to the usage scenario or usage requirements.

[0094] Moreover, due to the strength of the material of the fixing strap, the spacing between the buttonholes cannot be too small, generally 4mm to 7mm. The adjustment of the tightness is determined by the buttonhole spacing. The degree and accuracy of the tightness adjustment are limited, making it difficult to fully adapt to the wrist circumference of each user. Similarly, it is impossible to achieve infinite adjustment in a small range, reducing the monitoring accuracy of functions such as health monitoring.

[0095] In order to achieve infinite adjustment of wearing tightness to improve wearing comfort and the accuracy of health monitoring functions, the related technology also has watch straps with connection structures such as magnetic suction or Velcro. For example, the connection structure includes two magnetic suction plates that can attract and cooperate with each other, and the two magnetic suction plates are fixed on the first belt body and the second belt body respectively, and the length of the fixed belt when worn is adjusted by adjusting the position of the magnetic suction plates. Alternatively, the connection structure may include two Velcros that cooperate with each other, so that the two Velcros are fixed on the first belt body and the second belt body respectively, and the length of the fixed belt when worn is adjusted by adjusting the bonding position of the Velcro. Since there is no limitation on the length of metal links or the spacing between buttonholes, the matching position between the first belt body and the second belt body can be arbitrarily adjusted, so that the length of the fixed belt can be arbitrarily adjusted.

[0096] However, the tightness of the wear still needs to be adjusted manually, and in order to achieve a better fit during the adjustment process, repeated adjustments may be required, such as separating the magnetic sheet or Velcro multiple times and then fitting it again. This is not convenient, and it is not easy to dynamically adjust the tightness of the wear in different usage scenarios or different usage requirements, and it cannot automatically and dynamically adjust the tightness of the wear according to the usage scenario. In addition, the magnetic or Velcro connection method has a weak bonding force, which is prone to failure and causes the first strap body and the second strap body to loosen or disconnect, especially in scenarios such as sports, which is prone to wearing looseness, reducing wearing comfort and reducing the monitoring accuracy of functions such as health monitoring.

[0097] Based on this, the embodiment of the present application provides a connection structure, the fixed part and the sliding part of the connection structure can be respectively assembled and connected with the fixed belt, and the sliding part can be driven by the power mechanism to slide relative to the fixed part to adjust the length of the fixed belt, so as to adjust the wearing tightness, realize the automation and intelligence of the adjustment, and then realize the automatic adjustment of the wearing tightness, and significantly improve the convenience of tightness adjustment. The connection structure can also achieve a small range of stepless adjustment of the length of the fixed belt, improve the degree and accuracy of 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 realize adaptive dynamic adjustment of tightness, so that the connection structure can adaptively adjust the tightness according to different usage scenarios or adjustment requirements, and has excellent wearing comfort.

[0098] Continue to see Figure 2 As shown, the connection structure 103 provided in the embodiment of the present application includes a connected fixing member 10 and a sliding member 20, and the sliding member 20 and the fixing member 10 are respectively used to connect with the fixing belt 102. Exemplarily, 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.

[0099] 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.

[0100] It should be noted that the sliding member 20 and the first belt body 102a may be fixedly connected or rotatably connected, and correspondingly, the fixing member 10 and the second belt body 102b may be fixedly connected or rotatably connected.

[0101] 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 .

[0102] Figure 3 for Figure 2 Schematic diagram of the assembly of the fixing belt and the connecting structure in another state.

[0103] Combination Figure 3 As shown, 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.

[0104] 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.

[0105] Figure 4 for Figure 2 Schematic diagram of the assembly of the sliding parts and power mechanism of the connecting structure.

[0106] See also Figure 4As shown, the connection structure also includes a power mechanism 40, which can be arranged in the fixing part, and the power mechanism 40 is connected with the sliding part 20, and the power mechanism 40 can play the role of driving the sliding part 20 to slide, and the power mechanism 40 can drive the sliding part 20 to slide toward or away from the fixing part, so as to adjust the length of the fixing belt 102. That is, the sliding part 20 is driven to slide by the power mechanism 40 to achieve the effect of adjusting the wearing tightness, and the automation and intelligence of the tightness adjustment are realized, so that the automatic adjustment of the wearing tightness can be realized, and the convenience of the tightness adjustment is significantly improved, especially in different usage scenarios or adjustment requirements, the tightness adjustment can be realized more quickly and conveniently.

[0107] When the fixing strap needs to be tightened, for example, when the wearable device is worn 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.

[0108] When the fixing strap needs to be loosened, for example, when the fixing strap needs to be loosened to facilitate the wearable device to be placed around the wearing part, or when the fixing strap needs to be loosened to improve wearing comfort in leisure, sleep and other scenarios, the power mechanism 40 can be controlled to drive the sliding part 20 to move back to the fixing part, thereby increasing the length of the fixing strap.

[0109] In addition, the power mechanism 40 drives the sliding member 20 to slide relative to the fixed member to adjust the tightness of wearing. The tightness adjustment is determined by the relative sliding distance between the sliding member 20 and the fixed member, and the relative sliding distance will not be affected by the length of the metal chain link or the spacing between the buttonholes as mentioned above, and can achieve infinite adjustment in a small range, improve the degree and accuracy of the adjustable tightness of wearing, and have good adaptability, so that the fixing belt can perfectly adapt to the wearing parts of different users, further improving the wearing comfort. And in scenarios where the wearable device has a sensor to achieve health monitoring, it can ensure that the sensor can be close to and remain close to the user for a long time, improving the monitoring accuracy of functions such as health monitoring.

[0110] It should be noted that the sliding member slides relative to the fixed member, and 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.

[0111] Figure 5 for Figure 2 Schematic diagram of the split structure of the fixed part and the sliding part of the connecting structure. It should be noted that Figure 5 The internal structure of the connection structure is shown in FIG.

[0112] For example, taking the wearable device as a watch as an example, see Figure 5 As shown, the inner surface of the fixing member 10 and the sliding member 20 may be arc-shaped with a certain curvature, and the inner surface of the fixing member 10 and the sliding member 20 refers to the side of the fixing member 10 and the sliding member 20 that faces the user's wearing part and contacts the user's wearing part when the wearable device is worn. Exemplarily, both the fixing member 10 and the sliding member 20 may be arc-shaped structural members, which can better fit the user's wrist and other wearing parts, further improving wearing comfort.

[0113] 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.

[0114] For example, see Figure 5 As shown, 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 .

[0115] 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 arranged in the cavity 12 and be matched and connected with the sliding end 20a.

[0116] 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. Figure 5 As shown in FIG. 1 , two opposite inner side walls of the fixing member 10 may be respectively provided with a slide rail groove 11 , and two opposite outer side walls of the sliding end 20 a of the sliding member 20 may be respectively provided with a protruding slide rail portion 21 .

[0117] 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 stably slide along a fixed track relative to the fixed member 10 under the drive of the power mechanism.

[0118] 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 .

[0119] Figure 6 for Figure 4 Schematic diagram of the structure of the power mechanism.

[0120] In the present application examples, see Figure 6As shown, 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.

[0121] 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 .

[0122] 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 beneficial to increase the adjustable range of the fixed belt length, thereby increasing the degree of adjustment of the tightness, and is also beneficial to achieve infinite small range adjustment.

[0123] 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 .

[0124] The output end of the driving assembly 41 can be connected to the rotating member 42, and the rotational driving force output by the driving 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 Figure 6 In other words, the rotating member 42 can rotate around the x direction under the drive of the driving assembly 41.

[0125] 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 Figure 6 The x direction in .

[0126] The linkage member 43 is disposed on the rotating member 42, and the linkage member 43 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 with the sliding member 20 (refer to Figure 4 As shown in the figure), the linkage member 43 can drive the sliding member to slide relative to the fixed member to adjust the tightness of wearing. In other words, the rotational driving force output by the driving assembly 41 is converted into the sliding of the linkage member 43 and the sliding member, and a larger sliding displacement can be obtained through 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 conducive to achieving infinitely small range adjustment.

[0127] For example, the linkage member 43 and the rotating member 42 may be threadedly matched 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. Figure 6 As shown, the linkage member 43 can be sleeved on the rotating member 42 .

[0128] An external thread may be disposed on the outer wall of the rotating member 42 . It is understandable that the external thread may be disposed on the outer wall of the rotating member 42 in a spiral manner with the rotating axis of the rotating member 42 as the axis.

[0129] It should be noted that the external thread may be disposed around the entire outer wall of the rotating member 42 along the length direction (x direction), or may be disposed around only a portion of the outer wall of the rotating member 42 along the length direction.

[0130] The linkage member 43 may be a hollow structural member 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 in the figure) may be arranged around the inner wall of the linkage member 43. Similarly, the internal thread may be arranged on the inner wall of the linkage member 43 in a spiral manner with the rotation axis of the linkage member 43 as the axis.

[0131] When the linkage member 43 is sleeved on the rotating member 42, the internal thread of the linkage member 43 can be threadedly matched 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 has high applicability, which is convenient for production. It can be understood that by adjusting the thread spacing of the external thread and the internal thread, 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, so that the range of tightness adjustment can be increased, and infinitely small range adjustment can be achieved, which is conducive to optimizing and improving the range and accuracy of tightness adjustment.

[0132] 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, thereby 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 tightened state (or relaxed 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, so as to better meet the monitoring requirements of the wearable device with health monitoring function.

[0133] Figure 7 for Figure 4 Schematic diagram of the split structure of the sliding part and the power mechanism.

[0134] In order to realize that the sliding of the linkage member drives the sliding member to slide along the arc track, for example, see Figure 7 As shown, the power mechanism 40 may further include a transmission member 44, one end of which is rotatably connected to the linkage member 43, and the other end of the transmission member 44 can be rotatably connected to the sliding member 20, so that when the linkage member 43 slides along the length direction of the rotating member 42, the slide rail portion 21 of the sliding member 20 can be driven to slide in the slide rail groove of the fixed member through the transmission member, so that the sliding member 20 can realize an arc-shaped sliding relative to the fixed member. The structure is simple and easy to realize, and it is beneficial to improve the smoothness of the arc-shaped sliding of the sliding member 20 relative to the fixed member.

[0135] For example, see Figure 7 As shown, a protruding first rotating shaft 431 may be provided on the outer wall of the linkage member 43 , and a first shaft hole 441 may be opened on one end of the transmission member 44 , and the transmission member 44 may achieve rotational cooperation with the first rotating shaft 431 on the linkage member 43 through the first shaft hole 441 .

[0136] Correspondingly, a second axial hole 442 may be opened on the other end of the transmission member 44 , and a second rotating shaft 22 may be provided on the sliding end 20a of the sliding member 20 , and the transmission member 44 may achieve rotational cooperation with the second rotating shaft 22 on the sliding member 20 through the second axial hole 442 .

[0137] Figure 8 for Figure 2 Schematic diagram of the distribution of the power mechanism, battery and control circuit board inside the central fixing.

[0138] See also Figure 8 As shown, in the embodiment of the present application, the length direction of the driving component 41 in the power mechanism 40 is taken as the second direction. Figure 8 As shown in the y direction, 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.

[0139] 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, so 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 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.

[0140] 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 flexible shaft 45. The flexible shaft 45 can be a flexible columnar structure composed of metal wire. The two ends of the flexible 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 flexible shaft 45.

[0141] It can be understood that the driving assembly 41 and the rotating member 42 are arranged in an L-shaped layout, and a receiving space 46 (combined with Figure 6 As shown), the accommodating space 46 can be used to accommodate structural components in the fixing member 10.

[0142] For example, see Figure 8 As shown, the connection structure 103 may also 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 can be respectively arranged in the accommodating space 46 formed between the driving component 41 and the transmission member 44.

[0143] The battery 50 may be electrically connected to the control circuit board 60 to supply power to the control circuit board 60 .

[0144] 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.

[0145] 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 internal space utilization of the fixing components can be adopted.

[0146] Fig. 9 for Figure 2 Schematic diagram of the distribution of the power mechanism and wireless charging coil inside the central fixing.

[0147] See also Fig. 9 As shown, 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 .

[0148] 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. Exemplarily, the connection structure 103 can be used with a charging stand, and when the battery 50 is out of power, it can be charged through the wireless charging coil 70 and the charging stand.

[0149] It should be noted that in the scenario where the wearable device also includes a battery and a wireless charging coil, the connection structure and the wearable device can match 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 respectively.

[0150] It can be understood 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 the charging requirements.

[0151] For example, see Fig. 9 As shown, 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 at least cover a portion of the accommodation space, and the wireless charging coil can also cover a portion 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.

[0152] 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 also be adapted to different specifications such as smart watches that can realize functions such as health monitoring, thereby realizing a universal design and reducing development costs.

[0153] Among them, in some examples, an adjustment button (not shown in the figure) can be set on the connection structure, such as an adjustment button can be set 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 can include tightening or loosening the fixing belt, etc. The control circuit board can control the drive motor to run according to the received adjustment instruction information to adjust the wearing tightness. Take the adjustment button rotationally set on the fixing member as an example, 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, when the adjustment button is rotated 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 operating the adjustment button alone, which greatly improves the convenience.

[0154] Alternatively, in some examples, the adjustment button may also be set on the side of the device body, for example, on a dial, and the adjustment button may be a mechanical button, or the adjustment button may also be a virtual button.

[0155] The connection structure can realize information interaction with the device body, so as to control the connection structure through the device body to adjust the wearing tightness, enrich the implementation scenarios of tightness adjustment, and help improve the user experience of wearable devices.

[0156] Exemplarily, the connection structure may also include a wireless communication module (not shown in the figure), which may also be disposed in the cavity of the fixing member. 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 in the wearable device may be realized through the wireless communication module.

[0157] The adjustment button on the device body receives the user's adjustment command information through the user's operation, and transmits the adjustment command 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 command information.

[0158] 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.

[0159] 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 wearing tightness adjustment, achieving excellent wearing comfort performance, and improving the user experience.

[0160] Fig.10 for Figure 2 Schematic diagram of the connection structure at another angle.

[0161] For example, see Fig.10 As shown, 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 belt acting on the user's wearing part, that is, detect the pressure value of the user's wearing part.

[0162] The pressure sensor 80 is electrically connected to the control circuit board. The pressure sensor 80 can transmit pressure information to the control circuit board. The control circuit board can control the drive motor to drive the sliding member 20 to slide relative to the fixing member 10 according to the received pressure information, so as to adjust the length of the fixing belt. In this way, the pressure value of the user's wearing part can be dynamically detected by the pressure sensor 80, and the wearing tightness can be adaptively adjusted to achieve the effect of dynamically adjusting the wearing comfort.

[0163] For example, a preset threshold may be set in the pressure sensor 80. The pressure sensor 80 may compare the detected pressure value with the preset threshold 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 may control the drive motor to drive the sliding member to slide according to the pressure information.

[0164] Of course, in some examples, a preset threshold value may be set in the control circuit board, and the control circuit board may compare the pressure value detected by the pressure sensor with the preset threshold value, and drive the sliding member to slide through the driving mechanism according to the comparison information. In the embodiment of the present application, the preset threshold value in the pressure sensor is used as an example for explanation.

[0165] 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 member 20 to slide toward the fixed member 10 through the driving component, the rotating member, the linkage member and the transmission member, 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.

[0166] 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 member 20 to slide back toward the fixed member 10 through the driving component, the rotating member, the linkage member and the transmission member, 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.

[0167] When the pressure sensor 80 detects that the pressure value reaches a preset threshold, the pressure is fed back to the control circuit board, and the control circuit board can stop the drive motor from rotating. The self-locking function of the linkage and the rotating part can ensure that the fixing belt remains in a locked state (or a relaxed state).

[0168] In the above scenario of tightening or loosening the fixing belt by operating the adjustment button, different preset thresholds can be set accordingly when tightening or loosening the fixing belt. For example, when tightening the fixing belt, the preset threshold is relatively large. The preset threshold can be a pressure value obtained based on factors such as wearing comfort. When the pressure value of the wearing part reaches the preset threshold, it can be said that the current length of the fixing belt can well match the size of the wearing part and can provide a more comfortable wearing experience. On the contrary, when loosening the fixing belt, the preset threshold can be relatively small. In this way, when tightening or loosening the fixing belt by operating the adjustment button, the pressure sensor 80 can dynamically detect the pressure value of the wearing part. When the preset threshold corresponding to the tightening or loosening adjustment is reached, the control circuit board receives the pressure information of the pressure sensor 80 and can automatically control the drive motor to stop running, so as to achieve fixed tightness and maintain the tightness. There is no need for the user to operate the adjustment button again to stop the adjustment, so that the adjustment of the wearing tightness is more intelligent and automatic, and the convenience is further improved.

[0169] 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 needs, that is, it can be dynamically adjusted to a comfortable wearing state according to the user's usage scenarios or adjustment needs, realizing intelligent adaptive adjustment and significantly improving wearing comfort.

[0170] 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 command information received by the adjustment button can also include measurement mode information, etc. The control circuit board can transmit the adjustment command information to the pressure sensor 80. The pressure sensor 80 compares the detected pressure value with the preset threshold value under the scene according to the adjustment command 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.

[0171] Of course, in some examples, a measurement mode adjustment button may be further provided on the connection structure or the device body, through which the user's adjustment instruction information may be received. The adjustment instruction information may include only measurement mode information, etc., but does not include tightening or loosening the fixing strap mentioned above, etc.

[0172] 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 may be transmitted to the control circuit board through the communication unit of the device body and the wireless communication module of the connection structure 103.

[0173] It should be noted that, compared with setting the pressure sensor 80 on the device body, setting the pressure sensor 80 on the connection structure 103 can save the interaction of pressure information between the device body and the connection structure, simplify or remove the wireless communication module in the connection structure 103, save the internal space occupied by the connection structure 103, and facilitate the miniaturization design of the connection structure 103. In addition, the weight of the device body (such as the dial) is usually greater than the weight of the connection structure 103. Placing the pressure sensor 80 on the connection structure 103 can reduce the influence of the deadweight of the connection structure 103 on the pressure detection, which is conducive to improving the accuracy of the adjustment.

[0174] Taking into account the convenience of wearing, the fixing member 10 and the sliding member 20 can also be used with other types of connecting components 90 that can adjust the length of the fixing belt, for example, they can be used with connecting components 90 of the types of buckles, pin buckles, etc. (such as the buckle and pin buckle type connecting structures mentioned above).

[0175] Fig.11 for Fig.10 Schematic diagram of the splitting of the connection structure. Fig.12 for Fig.10 Schematic diagram of the splitting of the connected components of the connected structure.

[0176] Exemplary, combined Fig.11 and Fig.12 As shown, the connection structure 103 may further include a snap-on type connection assembly 90 , which may include a first folding plate 91 and a second folding plate 92 , wherein the first folding plate 91 may be located between the fixing member 10 and the second folding plate 92 .

[0177] See also Fig.12 As shown, 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 inserted into 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 of the third axial hole and the fourth axial hole is rotatably matched, so that the first folding plate 91 and the fixing member 10 are rotatably connected through the third rotating shaft 93.

[0178] 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 inserted into 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 of the fifth axial hole and the sixth axial hole is rotatably matched, so that the first folding plate 91 and the second folding plate 92 are rotatably connected through the fourth rotating shaft 94.

[0179] Since the fixing member 10 is rotatably matched with the first end of the first folding plate 91, and the second end of the first folding plate 91 is rotatably matched 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 (refer to Fig.10 shown).

[0180] Fig.13 for Fig.12 Schematic diagram of the open state structure of the connection component.

[0181] See also Fig.13 As shown, 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.

[0182] 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 through the assembly member 30, and the fixing member 10 is connected to the first belt body through the sliding member 20. Fig.13 As shown, when the fixing member 10, the first folding plate 91 and the second folding plate 92 are opened to each other, the end of the first belt body connected to the sliding member 20, the fixing member 10 and the first folding plate 91 can be driven away from the end of the second belt body connected to the assembly member 30 and the second folding plate 92, so that the length of the fixing belt becomes longer, and the size of the closed ring formed by the fixing belt, the device body and the connecting structure 103 becomes larger, which is convenient for the wearable device to be worn and removed at the wearing part.

[0183] When the fixing part 10, the first folding plate 91 and the second folding plate 92 are folded together, one 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 one 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 formed closed ring becomes smaller, so that the wearable device is fastened to the wearing part and stable wearing is achieved.

[0184] 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 snap-fitted 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.

[0185] For example, see Fig.13 As shown, a first buckle portion 911 may be provided on one end of the first folding plate 91 connected to the fixing member 10, and a second buckle portion 921 may be provided on one end of the second folding plate 92 connected to the assembly member 30 (see Fig.10 As shown), the first buckle portion 911 may be a buckle hanging piece, and the second buckle portion 921 may be a buckle opening.

[0186] When the fixing member 10, the first folding plate 91 and the second folding plate 92 are folded with each other, the first snap-in portion 911 can be snap-fitted with the second snap-in portion 921, such as the snap-in hanging piece is snap-fitted on the snap-in mouth, and the snap-in cooperation 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.

[0187] It should be noted that the fixing member 10 and the sliding member 20 in the connecting structure 103 are used to adjust the wearing tightness when worn, that is, the fixing member 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 member 20 to slide.

[0188] When the fixing member 10, the first folding plate 91 and the second folding plate 92 are opened to each other for wearing or removing 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.

[0189] 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, it can be the internal connection of two components or the interaction relationship between two components. 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.

[0190] 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, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by 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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