Smartwatch

Abstract

The present invention discloses a smart watch, including a device body and a watch strap. The device body includes a watch case and a main control component arranged in the watch case, a mounting cavity is arranged in the watch strap, an expandable functional component and a watch strap connector are arranged in the mounting cavity, and the expandable functional component is electrically connected to the main control component through the watch strap connector; a positioning structure is arranged on the watch case, and the positioning structure is plugged and matched with the watch strap connection end to pre-position the watch strap connection end in at least two directions, and the watch strap connection end is fixedly connected to the watch case through a fixing structure after being pre-positioned. In the smart watch, the watch strap is hollowly arranged, and the expandable functional component is arranged inside it, so that the space of the watch strap is effectively utilized; in the process of installing the watch strap on the watch case, the positioning structure can pre-position the watch strap, which is conducive to aligning the watch strap connector with the corresponding electrical connection position on the main control component as soon as possible, and the watch strap can be quickly installed.

Description

Technical Field

[0001] The present invention relates to the technical field of wearable devices, and in particular to a smart watch. Background Art

[0002] In a typical smart watch, the strap is usually a solid structure and only serves the purpose of being worn. If it is necessary to add some components to the smart watch to increase the functionality of the smart watch, this is usually achieved by continuously expanding the volume of the device body, without fully utilizing the strap.

[0003] Therefore, how to improve the utilization rate of the strap space is a technical problem that technicians in this field currently need to solve. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a smart watch that improves the utilization rate of the strap space.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A smart watch comprises a device body and a watch strap, wherein the device body comprises a watch case and a main control component arranged in the watch case, wherein an installation cavity is provided in the watch strap, wherein an expandable functional component and a watch strap connector are provided in the installation cavity, wherein the expandable functional component is electrically connected to the main control component via the watch strap connector; wherein a positioning structure is provided on the watch case, wherein the positioning structure is plugged into and matched with a watch strap connection end of the watch strap so as to pre-position the watch strap connection end in at least two directions, and the watch strap connection end is fixedly connected to the watch case via a fixing structure after being pre-positioned.

[0007] Preferably, a positioning plate is protruding from the circumferential surface of the watch case; the positioning structure includes a first positioning structure arranged on the positioning plate, the first positioning structure is arranged on the side of the positioning plate close to the bottom surface of the watch case, and a first mating structure that is plugged into and mated with the first positioning structure is provided on the side of the strap connecting end opposite to the bottom surface of the strap.

[0008] Preferably, the positioning structure also includes a second positioning structure provided on the circumferential surface of the watch case and located between the positioning plate and the bottom surface of the watch case, and a second mating structure which is plugged into and mated with the second positioning structure is provided on the end surface of the strap connection end.

[0009] Preferably, the second matching structure is provided on both sides of the end surface of the strap connection end in the width direction of the strap.

[0010] Preferably, the watch case is penetrated by a watch case connecting hole for the watch band connector to pass through, and the watch case connecting hole is provided with the second positioning structure on both sides in the thickness direction of the watch band and on both sides in the width direction of the watch band.

[0011] Preferably, the expandable functional component and the strap connector are both flexible parts.

[0012] Preferably, the strap connector partially extends out of the strap connection end to electrically connect to the main control component; the portion of the strap connector that extends out of the strap connection end is sleeved with a sealing ring, and the sealing ring is clamped between the end face of the strap connection end and the circumferential surface of the watch case.

[0013] Preferably, the expandable functional component is a flexible watch strap battery.

[0014] Preferably, the main control component includes a main board and an elastic connector electrically connected to the main board, and the portion of the watch band connector extending into the watch case is electrically connected to the elastic connector.

[0015] Preferably, the watch strap comprises a first strap body having an assembly groove and a second strap body covering the assembly groove to form a component mounting cavity, the first strap body and the second strap body are provided with interconnected connector mounting holes, the component mounting cavity and the connector mounting hole are connected and constitute the mounting cavity, the component mounting cavity is installed in the expandable functional component, and the connector mounting hole is installed in the watch strap connector.

[0016] The smart watch provided by the present invention comprises a device body and a watch strap. The device body comprises a watch case and a main control component arranged in the watch case, a mounting cavity is arranged in the watch strap, an expansible functional component and a watch strap connector are arranged in the mounting cavity, and the expansible functional component is electrically connected to the main control component through the watch strap connector; a positioning structure is arranged on the watch case, and the positioning structure is plugged and matched with the watch strap connection end to pre-position the watch strap connection end in at least two directions, and the watch strap connection end is fixedly connected to the watch case through a fixing structure after being pre-positioned.

[0017] In the smart watch, the strap is hollow and has expandable functional components inside, which effectively utilizes the strap space. During the process of installing the strap on the watch case, the positioning structure can pre-position the strap, which is conducive to aligning the strap connector with the corresponding electrical connection position on the main control component as quickly as possible, thereby realizing rapid installation of the strap. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1 An exploded diagram of the smart watch provided by the present invention;

[0020] Figure 2 A cross-sectional view of the smart watch provided by the present invention passing through the strap connector;

[0021] Figure 3 for Figure 2 A magnified image of point A;

[0022] Figure 4 A cross-sectional view of the smart watch provided by the present invention at the middle position in the width direction of the watch strap;

[0023] Figure 5 for Figure 4 A magnified view of point B;

[0024] Figure 6 This is a structural diagram of the first strap body in the smart watch provided by the present invention;

[0025] Figure 7 This is a structural diagram of the strap connection end of the smart watch provided by the present invention;

[0026] Figure 8 A first-direction structural diagram of the upper shell of the smart watch provided by the present invention;

[0027] Fig. 9 A second direction structural diagram of the upper shell of the smart watch provided by the present invention;

[0028] Fig.10 A partial structural diagram of the lower case of the smart watch provided by the present invention;

[0029] Fig.11 A plug-in matching diagram of the lower housing and the strap connection end of the smart watch provided by the present invention;

[0030] Fig.12 This is a structural diagram of the spring in the smart watch provided by the present invention.

[0031] Reference numerals:

[0032] 1-watch case, 11-first positioning structure, 11-1-first groove, 12-second positioning structure, 12-1-second groove, 12-2-third protrusion, 12-3-fourth groove, 12-4-fifth groove, 13-upper case, 14-lower case, 15-display screen, 16-watch case connecting hole, 17-watch case bottom surface, 18-watch ear, 19-positioning plate, 110-main battery;

[0033] 2-main board, 21-shrapnel;

[0034] 3-watch strap, 31-first matching structure, 31-1-first protrusion, 32-second matching structure, 32-1-second protrusion, 32-2-third groove, 32-3-fourth protrusion, 32-4-fifth protrusion, 33-watch strap connection end, 34-watch strap screw, 35-watch strap bottom surface, 36-first strap body, 37-second strap body, 38-watch strap battery, 39-watch strap connector, 310-watch strap nut, 311-installation cavity, 312-component installation cavity, 313-connector installation hole, 314-sealing ring;

[0035] X- strap length direction, Y- strap width direction, Z- strap thickness direction. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The core of the present invention is to provide a smart watch, which improves the utilization rate of the watch strap space.

[0038] It should be noted that when an element is referred to as "fixed" to another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a centered element at the same time. In addition, in the description of the present invention, unless otherwise specified, the meaning of "multiple" is two or more. In addition, the terms "first", "second", "third", "fourth", and "fifth" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0040] A specific embodiment of the smart watch provided by the present invention includes a device body and a watch strap 3.

[0041] The device body includes a watch case 1 and a main control component disposed in the watch case 1. The main control component includes a main board 2 (specifically a PCB) and functional components that perform corresponding functions of the smart watch, such as a heart rate sensor, a microphone, a Bluetooth, and other components. Figure 1 As shown, the watch case 1 generally includes at least two components, an upper case 13 and a lower case 14. The upper case 13 is an annular structure. The lower case 14 is sealed and fixed on one end of the upper case 13. The outer surface of the lower case 14 corresponds to the bottom surface 17 of the watch case. Figure 3 As shown, the bottom surface 17 of the watch case is the surface that directly contacts the skin when worn, a display screen 15 is set on the other end of the upper case 13, and the main control component is set in the space surrounded by the upper case 13, the lower case 14 and the display screen 15.

[0042] The strap connection end 33 of the strap 3 is used to connect to the watch case 1, and can be detachably fixedly connected. Figure 1 As shown, the watch strap 3 is provided as a strap body structure having two watch strap connection ends 33, and the two watch strap connection ends 33 are both connected to the watch case 1. Of course, in other embodiments, the watch strap 3 may also be provided as two, each watch strap 3 having a watch strap connection end 33, and when worn, the free ends of the two watch straps 3 are connected to form a ring structure with the watch case 1.

[0043] The strap 3 is provided with an installation cavity 311. The installation cavity 311 is provided with a flexible expansible functional component and a flexible strap connector 39, which can be deformed synchronously with the strap 3. The expansible functional component is electrically connected to the main control component through the strap connector 39.

[0044] The watch case 1 is provided with a positioning structure, which is plugged and matched with the watch strap 3 to pre-position the watch strap connection end 33 in at least two directions. The positioning structure is specifically a groove structure or a protrusion structure, and the watch strap 3 is correspondingly provided with a protrusion structure or a groove structure as a matching structure to achieve plugging. It should be noted that the length of the watch strap connection end 33 can be set as needed, and the length of the watch strap connection end 33 usually only accounts for a small part of the total length of the watch strap 3, and the remaining part of the watch strap 3 is not constrained by the positioning structure, so as not to affect the shape adjustment of the main part of the watch strap 3 during wearing. In addition, during the plugging process of the watch strap 3 and the positioning structure, the watch strap connection end 33 may be squeezed and deformed between the positioning structure, and the deformation is restored after plugging. In order to avoid the expansion function component from being compressed, the installation position of the expansion function component on the watch strap 3 is preferably in the remaining position on the watch strap 3 that is docked with the watch strap connection end 33. After pre-positioning, the watch strap connection end 33 is fixedly connected to the watch case 1 through a fixing structure.

[0045] In the present embodiment, the watch strap 3 is hollow and an expandable functional component is arranged inside it, thereby realizing effective utilization of the space of the watch strap 3; the expandable functional component and the watch strap connector 39 are both configured as flexible structures, which can adaptively bend and deform along with the watch strap 3, and the expandable functional component and the watch strap connector 39 will not be damaged due to the bending of the watch strap 3 during the wearing process; in the process of installing the watch strap 3 on the watch case 1, the positioning structure can pre-position the watch strap 3, which is conducive to aligning the watch strap connector 39 with the corresponding electrical connection position on the main control component as soon as possible, thereby realizing rapid installation of the watch strap 3.

[0046] For further information, please refer to Figure 5 and Figure 6 A positioning plate 19 is protruded from the circumference of the watch case 1. The positioning structure includes a first positioning structure 11 arranged on the positioning plate 19, and the first positioning structure 11 is arranged on the side of the positioning plate 19 close to the bottom surface 17 of the watch case 1. A first matching structure 31 is arranged on the side of the strap connection end 33 opposite to the bottom surface 35 of the strap 3. The bottom surface 35 of the strap is the side of the strap 3 that directly contacts the skin when worn. The first positioning structure 11 is plugged into and matched with the first matching structure 31, as shown in FIG. Figure 5 As shown, the first matching structure 31 and the first positioning structure 11 are plugged in the thickness direction of the strap. The positioning plate 19 can limit the strap connection end 33 in the thickness direction of the strap to prevent the strap connection end 33 from moving in the direction away from the strap bottom surface 35 in the thickness direction of the strap; the plug-in matching of the first positioning structure 11 and the first matching structure 31 can be limited in at least one direction of the strap length direction and the strap width direction to prevent the strap 3 from moving away from the watch case 1 in the strap length direction or the strap 3 from shaking relative to the watch case 1 in the strap width direction.

[0047] Among them, preferably, Figures 5 to 8 As shown, the first positioning structure 11 is arranged on the middle part of the side surface of the positioning plate 19 close to the bottom surface 17 of the watch case, specifically, a first groove 11-1 with a single opening toward the bottom surface 17 of the watch case, and the first matching structure 31 is a first protrusion 31-1 plugged into the first groove 11-1. Since the first groove 11-1 is open on one side, the first protrusion 31-1 can be limited in both the length direction and the width direction of the watch band. Of course, in other embodiments, the first positioning structure 11 can also be set as a protrusion protruding toward the bottom surface 17 of the watch case. Accordingly, the first matching structure 31 is set as a U-shaped groove, which is set through along the width direction of the watch band and opens in a direction away from the bottom surface 35 of the watch band. After being plugged in along the thickness direction of the watch band, the first positioning structure 11 can limit the first matching structure 31 in the length direction of the watch band, but cannot limit the first matching structure 31 in the width direction of the watch band. In addition, on the positioning plate 19, the number of the first positioning structures 11 can be one or more.

[0048] Furthermore, the positioning structure also includes a second positioning structure 12 arranged on the circumferential surface of the watch case 1, and the second positioning structure 12 is located between the positioning plate 19 and the bottom surface 17 of the watch case. A second matching structure 32 is provided on the end surface of the strap connection end 33, and the second positioning structure 12 is plugged and matched with the second matching structure 32. Since the second positioning structure 12 and the positioning plate 19 are arranged in sequence in the thickness direction of the strap, the plug-in cooperation between the two and the strap 3 can limit the strap 3 in both directions in the thickness direction of the strap.

[0049] Preferably, in the width direction of the strap, an odd number of second positioning structures 12 are sequentially arranged in the width direction of the strap to form a second limiting group. If the second positioning structures 12 in the second limiting group are not plugged in one-to-one with the second matching structures 32 on the strap 3, but are staggered in the width direction of the strap, it will be obvious that there are vacant second positioning structures 12, which has a fool-proof effect. Specifically, if Fig.10 As shown, three second positioning structures 12 arranged in sequence along the width direction of the strap constitute a second limiting group. The three second positioning structures 12 are a second groove 12-1, a third protrusion 12-2 and a fourth groove 12-3 in sequence. Figure 6 As shown, the end surface of the strap connection end 33 is provided with a second protrusion 32-1, a third groove 32-2 and a fourth protrusion 32-3 in sequence along the width direction of the strap. Fig.11 As shown, the second groove 12-1 and the second protrusion 32-1 are plugged together at E, the third protrusion 12-2 and the third groove 32-2 are plugged together at C, and the fourth groove 12-3 and the fourth protrusion 32-3 are plugged together at D.

[0050] Preferably, the end surface of the strap connection end 33 is provided with a second matching structure 32 on both sides in the strap width direction. Figure 6 As shown in the fourth protrusion 32-3 and the second protrusion 32-1. Since the second matching structure 32 provided at the edge is convenient for observation, the position of the strap connection end 33 relative to the watch case 1 can be preliminarily adjusted based on it, and then the positioning structure at other positions can be further aligned with the matching structure on the strap 3, which can further improve the assembly efficiency.

[0051] Furthermore, the watch case 1 is provided with a watch case connecting hole 16, as shown in FIG. Figure 2 As shown, one end of the strap connector 39 is electrically connected to the expandable functional component, and the other end is electrically connected to the main control component through the case connection hole 16 after extending out of the strap connection end 33. The case connection hole 16 is provided with a second positioning structure 12 on both sides in the thickness direction of the strap and on both sides in the width direction of the strap, which can reliably position the part of the strap 3 close to the strap connector 39, so that the part is not easily deformed, so as to ensure the reliability of the electrical connection. As in this embodiment, see Fig. 9and Fig.10 The strap connection hole 16 is provided with a second positioning structure 12 on both sides in the thickness direction of the strap: a fifth groove 12-4 and a third protrusion 12-2, and a second limiting knot 12 is provided on both sides in the width direction of the strap: a second groove 12-1 and a fourth groove 12-3.

[0052] Furthermore, the circumferential surface of the watch case 1 is provided with a watch lug 18, such as Figure 8 As shown, each lug 18 is arranged in sequence along the width direction of the strap, and the lug 18 protrudes from the circumference of the watch case 1. The strap connection end 33 is sandwiched between the two lugs 18, and the strap connection end 33 is fixed to the lug 18 by a strap screw 34, and the strap screw 34 is a fixing structure. Specifically, a strap nut 310 is embedded in the strap connection end 33, and the axis of the strap nut 310 is along the width direction of the strap, and the strap nut 310 is threadedly locked with the strap screw. The lug 18 has the function of limiting the strap connection end 33 along the width direction of the strap. After the positioning structure pre-positions the strap connection end 33, the strap 3 can be locked to the watch case 1 by connecting the strap 3 with the lug screw, so as to realize a detachable fixed connection between the two. Of course, in other embodiments, the fixing structure can also be set as a quick-release buckle or other structure.

[0053] The circumference of the watch case 1 is composed of the circumference of the upper case 13 and the circumference of the lower case 14. The number and specific positions of the positioning structures provided on the upper case 13 and the lower case 14 can be set as required. Figure 8 The positioning plate 19 is arranged in parallel with the display screen 15, the case connection hole 16 is arranged through the upper case 13, and the case connection hole 16 is provided with lugs 18 on both sides along the circumference of the case 1, and a second positioning structure is provided on the circumference of the upper case 13 between the positioning plate 19 and the case connection hole 16: the fifth groove 12-4. Fig.10 As shown, three second positioning structures 12 are arranged in parallel on the lower shell 14 along the width direction of the strap, which are the second groove 12-1, the third protrusion 12-2 and the fourth groove 12-3.

[0054] The shape of each second positioning structure 12 can be set as required, such as Figure 5 and Figure 8 In the embodiment, the fifth groove 12-4 is a special-shaped groove, and accordingly, the fifth protrusion 32-4 on the strap connection end 33 that is plugged into the fifth groove 12-4 is a special-shaped protrusion, so as to limit the strap connection end 33 in the width direction and the thickness direction of the strap, wherein the fifth protrusion 32-4 is not shown on one of the strap connection ends 33 in the drawings of the specification; or, the second positioning structure 12 can be as follows Fig.10 As shown in the third protrusion 12-2 and the fourth groove 12-3, it is a rectangular structure.

[0055] Furthermore, a sealing ring 314 is sleeved on the portion of the strap connector 39 extending out of the strap connection end 33, and the sealing ring 314 is clamped between the end surface of the strap connection end 33 and the peripheral surface of the watch case 1, and the sealing ring 314 forms an interference fit between the end surface of the strap connection end 33 and the peripheral surface of the watch case 1. This sealing method is easy to implement and can reliably seal between the strap connection end 33 and the strap connector 39, and between the case connection hole 16 and the strap connector 39.

[0056] Furthermore, the expandable functional component is a flexible strap battery 38, so as to utilize the space of the case 1 to maintain the battery life of the smart watch. Figure 1 As shown, the strap battery 38 is a curved battery that matches the shape of the strap 3 in the free state when not worn, and can be bent. One strap battery 38 corresponds to two strap connectors 39, which respectively connect the positive and negative poles of the strap battery 38. Specifically, one or more strap batteries 38 can be provided. By using the strap battery 38 to power the main control component, the battery in the device body can be canceled and the strap battery 38 can be used directly; or, the strap battery 38 and the main battery 110 can be respectively provided in the strap 3 and the device body.

[0057] Furthermore, the main control component includes a mainboard 2 and an elastic connector electrically connected to the mainboard 2, such as a conductive spring 21. The portion of the watch band connector 39 extending into the watch case 1 contacts the elastic connector to electrically connect. By setting the elastic connector, the elasticity of the elastic connector can be used to compress the watch band connector 39 to ensure the reliability of the electrical connection. In addition, the watch band connector 39 is a flexible FPC, and the contact position of the FPC with the spring 21 is hardened and gold-plated to improve the reliability of the contact with the spring 21. Of course, in other embodiments, the watch band connector 39 can also be a cable.

[0058] Furthermore, the strap 3 includes a first strap body 36 and a second strap body 37. The first strap body 36 is provided with a mounting groove, which is specifically opened toward one side in the thickness direction of the strap. Figure 2 As shown, the second belt body 37 is assembled and covers the assembly groove to form a component installation cavity 312. The first belt body 36 and the second belt body 37 are provided with a connector installation hole 313 that is connected to each other. Figure 3As shown, the connector mounting hole 313 is a runway-shaped long hole. The component mounting cavity 312 and the connector mounting hole 313 are connected and form the mounting cavity 311. The component mounting cavity 312 and the connector mounting hole 313 are sequentially installed with the expandable functional component and the watchband connector 39. In addition, a battery expansion space is reserved between the component mounting cavity 312 and the watchband battery 38. The mounting cavity 312 is formed between the first strap body 36 and the second strap body 37, and is a closed cavity built into the watchband 3, that is, except for the port of the connector mounting hole 313, the rest of the parts are separated from the outside by the watchband, which can effectively protect the expandable functional component and the watchband connector 39.

[0059] The assembly process of the smart watch provided in this embodiment is as follows:

[0060] The display screen 15 is fixed to the upper shell 13 by dispensing glue, the spring piece 21 is welded to the main board 2 of the main control component by patch welding, the main board 2 is fixed to the lower shell 14, the main battery 110 is fixed to the upper shell 13, and the lower shell 14 is fixed to the upper shell 13 by double-sided tape; the strap battery 38 is placed inside the first strap body 36, and the second strap body 37 is assembled to form the strap 3, wherein the strap connector 39 can be fixed to the strap battery 38 before the strap battery 38 is placed in the first strap body 36, and the assembly on the strap 3 is completed together with the strap battery 38; after the strap 3 is buckled into the corresponding positioning structures of the upper shell 13 and the lower shell 14, screws are respectively screwed at the lug positions to fix the strap 3, wherein the strap 3 is usually plastic with a certain elasticity, and when the strap 3 is buckled into the positioning structure, the strap connection end 33 may be slightly deformed and reset after being assembled in place.

[0061] Obviously, the expandable functional component is not limited to being the strap battery in the above embodiment, and the installation cavity is not limited to being a closed cavity. Optionally, in another embodiment, the expandable functional component can be a pulse sensor, and accordingly, a mounting cavity is provided on the bottom surface 35 of the strap, and the pulse sensor is fixedly disposed in the mounting cavity and exposed, and when worn, the pulse sensor can directly contact the skin for testing.

[0062] In addition, the expandable functional component and the strap connector 39 are not limited to being flexible parts. When the expandable functional component is small in size or the strap connector 39 is short, it can be applied to the smart watch even if it is set to a relatively rigid structure.

[0063] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0064] The smartwatch provided by the present invention is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A smart watch, comprising a device body and a watch strap (3), wherein the device body comprises a watch case (1) and a main control component arranged in the watch case (1), characterized in that: The watch strap (3) is provided with a mounting cavity (311), the mounting cavity (311) is provided with an expandable functional component and a watch strap connector (39), the expandable functional component being electrically connected to the main control component via the watch strap connector (39); a positioning structure is provided on the watch case (1), the positioning structure is plugged into and matched with the watch strap connection end (33) of the watch strap (3) to pre-position the watch strap connection end (33) in at least two directions, and the watch strap connection end (33) is fixedly connected to the watch case (1) via a fixing structure after being pre-positioned; The watch case (1) is provided with watch lugs (18) on the circumferential surface, and the watch lugs (18) are arranged in sequence along the width direction of the watch strap, the watch lugs (18) protrude from the circumferential surface of the watch case (1), the watch strap connecting end (33) is sandwiched between two of the watch lugs (18), and the watch strap connecting end (33) is detachably fixed to the watch lugs (18) via the fixing structure; A positioning plate (19) is protruding from the circumferential surface of the watch case (1); the positioning structure comprises a first positioning structure (11) arranged on the positioning plate (19), the first positioning structure (11) being arranged on a side surface of the positioning plate (19) close to the bottom surface (17) of the watch case (1), and a first matching structure (31) pluggably matched with the first positioning structure (11) is arranged on a side surface of the strap connection end (33) opposite to the bottom surface (35) of the strap (3); the positioning structure further comprises a second positioning structure (12) arranged on the circumferential surface of the watch case (1) and located between the positioning plate (19) and the bottom surface (17) of the watch case, and a second matching structure (32) pluggably matched with the second positioning structure (12) is arranged on an end surface of the strap connection end (33).

2. The smart watch according to claim 1, characterized in that: The second matching structure (32) is provided on both sides of the end surface of the strap connection end (33) in the width direction of the strap.

3. The smart watch according to claim 1, characterized in that: The watch case (1) is provided with a watch case connection hole (16) for the watch band connector (39) to pass through, and the watch case connection hole (16) is provided with the second positioning structure (12) on both sides in the direction of the thickness of the watch band and on both sides in the direction of the width of the watch band.

4. The smart watch according to any one of claims 1 to 3, characterized in that: The expandable functional component and the watchband connector (39) are both flexible parts.

5. The smart watch according to any one of claims 1 to 3, characterized in that: The watchband connector (39) partially extends out of the watchband connection end (33) to be electrically connected to the main control component; the portion of the watchband connector (39) that extends out of the watchband connection end (33) is sleeved with a sealing ring (314), and the sealing ring (314) is clamped between the end surface of the watchband connection end (33) and the peripheral surface of the watch case (1).

6. The smart watch according to any one of claims 1 to 3, characterized in that: The expandable functional component is a flexible watchband battery (38).

7. The smart watch according to any one of claims 1 to 3, characterized in that: The main control component comprises a main board (2) and an elastic connector electrically connected to the main board (2), and the portion of the watch band connector (39) extending into the watch case (1) is electrically connected to the elastic connector.

8. The smart watch according to any one of claims 1 to 3, characterized in that: The watch strap (3) comprises a first strap body (36) having an assembly groove and a second strap body (37) covering the assembly groove to form a component mounting cavity (312); the first strap body (36) and the second strap body (37) are provided with interconnected connector mounting holes (313); the component mounting cavity (312) and the connector mounting hole (313) are connected to form the mounting cavity (311); the component mounting cavity (312) is used to mount the expandable functional component, and the connector mounting hole (313) is used to mount the watch strap connector (39).

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